content/renderer/render_view_impl.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/renderer/render_view_impl.h"
   6
   7 #include <algorithm>
   8 #include <cmath>
   9
  10 #include "base/auto_reset.h"
  11 #include "base/bind.h"
  12 #include "base/bind_helpers.h"
  13 #include "base/command_line.h"
  14 #include "base/compiler_specific.h"
  15 #include "base/debug/alias.h"
  16 #include "base/files/file_path.h"
  17 #include "base/i18n/rtl.h"
  18 #include "base/json/json_writer.h"
  19 #include "base/lazy_instance.h"
  20 #include "base/memory/scoped_ptr.h"
  21 #include "base/metrics/field_trial.h"
  22 #include "base/metrics/histogram.h"
  23 #include "base/process/kill.h"
  24 #include "base/process/process.h"
  25 #include "base/strings/string_number_conversions.h"
  26 #include "base/strings/string_piece.h"
  27 #include "base/strings/string_split.h"
  28 #include "base/strings/string_util.h"
  29 #include "base/strings/sys_string_conversions.h"
  30 #include "base/strings/utf_string_conversions.h"
  31 #include "base/time/time.h"
  32 #include "base/trace_event/trace_event.h"
  33 #include "content/child/appcache/appcache_dispatcher.h"
  34 #include "content/child/appcache/web_application_cache_host_impl.h"
  35 #include "content/child/child_shared_bitmap_manager.h"
  36 #include "content/child/npapi/webplugin_delegate_impl.h"
  37 #include "content/child/request_extra_data.h"
  38 #include "content/child/v8_value_converter_impl.h"
  39 #include "content/child/webmessageportchannel_impl.h"
  40 #include "content/common/content_constants_internal.h"
  41 #include "content/common/database_messages.h"
  42 #include "content/common/dom_storage/dom_storage_types.h"
  43 #include "content/common/drag_messages.h"
  44 #include "content/common/frame_messages.h"
  45 #include "content/common/frame_replication_state.h"
  46 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
  47 #include "content/common/input_messages.h"
  48 #include "content/common/pepper_messages.h"
  49 #include "content/common/ssl_status_serialization.h"
  50 #include "content/common/view_messages.h"
  51 #include "content/public/common/bindings_policy.h"
  52 #include "content/public/common/content_client.h"
  53 #include "content/public/common/content_constants.h"
  54 #include "content/public/common/content_switches.h"
  55 #include "content/public/common/drop_data.h"
  56 #include "content/public/common/favicon_url.h"
  57 #include "content/public/common/file_chooser_file_info.h"
  58 #include "content/public/common/file_chooser_params.h"
  59 #include "content/public/common/page_state.h"
  60 #include "content/public/common/page_zoom.h"
  61 #include "content/public/common/ssl_status.h"
  62 #include "content/public/common/three_d_api_types.h"
  63 #include "content/public/common/url_constants.h"
  64 #include "content/public/common/url_utils.h"
  65 #include "content/public/common/web_preferences.h"
  66 #include "content/public/renderer/content_renderer_client.h"
  67 #include "content/public/renderer/document_state.h"
  68 #include "content/public/renderer/navigation_state.h"
  69 #include "content/public/renderer/render_view_observer.h"
  70 #include "content/public/renderer/render_view_visitor.h"
  71 #include "content/renderer/browser_plugin/browser_plugin.h"
  72 #include "content/renderer/browser_plugin/browser_plugin_manager.h"
  73 #include "content/renderer/disambiguation_popup_helper.h"
  74 #include "content/renderer/dom_storage/webstoragenamespace_impl.h"
  75 #include "content/renderer/drop_data_builder.h"
  76 #include "content/renderer/gpu/render_widget_compositor.h"
  77 #include "content/renderer/history_controller.h"
  78 #include "content/renderer/history_serialization.h"
  79 #include "content/renderer/idle_user_detector.h"
  80 #include "content/renderer/ime_event_guard.h"
  81 #include "content/renderer/input/input_handler_manager.h"
  82 #include "content/renderer/internal_document_state_data.h"
  83 #include "content/renderer/media/audio_device_factory.h"
  84 #include "content/renderer/media/video_capture_impl_manager.h"
  85 #include "content/renderer/mhtml_generator.h"
  86 #include "content/renderer/navigation_state_impl.h"
  87 #include "content/renderer/net_info_helper.h"
  88 #include "content/renderer/render_frame_impl.h"
  89 #include "content/renderer/render_frame_proxy.h"
  90 #include "content/renderer/render_process.h"
  91 #include "content/renderer/render_thread_impl.h"
  92 #include "content/renderer/render_view_mouse_lock_dispatcher.h"
  93 #include "content/renderer/render_widget_fullscreen_pepper.h"
  94 #include "content/renderer/renderer_webapplicationcachehost_impl.h"
  95 #include "content/renderer/resizing_mode_selector.h"
  96 #include "content/renderer/savable_resources.h"
  97 #include "content/renderer/speech_recognition_dispatcher.h"
  98 #include "content/renderer/text_input_client_observer.h"
  99 #include "content/renderer/web_ui_extension_data.h"
 100 #include "content/renderer/web_ui_mojo.h"
 101 #include "content/renderer/websharedworker_proxy.h"
 102 #include "media/audio/audio_output_device.h"
 103 #include "media/base/media_switches.h"
 104 #include "media/renderers/audio_renderer_impl.h"
 105 #include "media/renderers/gpu_video_accelerator_factories.h"
 106 #include "net/base/data_url.h"
 107 #include "net/base/escape.h"
 108 #include "net/base/net_errors.h"
 109 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 110 #include "net/http/http_util.h"
 111 #include "skia/ext/platform_canvas.h"
 112 #include "third_party/WebKit/public/platform/WebCString.h"
 113 #include "third_party/WebKit/public/platform/WebConnectionType.h"
 114 #include "third_party/WebKit/public/platform/WebDragData.h"
 115 #include "third_party/WebKit/public/platform/WebHTTPBody.h"
 116 #include "third_party/WebKit/public/platform/WebImage.h"
 117 #include "third_party/WebKit/public/platform/WebMessagePortChannel.h"
 118 #include "third_party/WebKit/public/platform/WebPoint.h"
 119 #include "third_party/WebKit/public/platform/WebRect.h"
 120 #include "third_party/WebKit/public/platform/WebSize.h"
 121 #include "third_party/WebKit/public/platform/WebStorageQuotaCallbacks.h"
 122 #include "third_party/WebKit/public/platform/WebString.h"
 123 #include "third_party/WebKit/public/platform/WebURL.h"
 124 #include "third_party/WebKit/public/platform/WebURLError.h"
 125 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 126 #include "third_party/WebKit/public/platform/WebURLResponse.h"
 127 #include "third_party/WebKit/public/platform/WebVector.h"
 128 #include "third_party/WebKit/public/web/WebAXObject.h"
 129 #include "third_party/WebKit/public/web/WebColorName.h"
 130 #include "third_party/WebKit/public/web/WebColorSuggestion.h"
 131 #include "third_party/WebKit/public/web/WebDOMEvent.h"
 132 #include "third_party/WebKit/public/web/WebDOMMessageEvent.h"
 133 #include "third_party/WebKit/public/web/WebDataSource.h"
 134 #include "third_party/WebKit/public/web/WebDateTimeChooserCompletion.h"
 135 #include "third_party/WebKit/public/web/WebDateTimeChooserParams.h"
 136 #include "third_party/WebKit/public/web/WebDocument.h"
 137 #include "third_party/WebKit/public/web/WebElement.h"
 138 #include "third_party/WebKit/public/web/WebFileChooserParams.h"
 139 #include "third_party/WebKit/public/web/WebFindOptions.h"
 140 #include "third_party/WebKit/public/web/WebFormControlElement.h"
 141 #include "third_party/WebKit/public/web/WebFormElement.h"
 142 #include "third_party/WebKit/public/web/WebFrame.h"
 143 #include "third_party/WebKit/public/web/WebGlyphCache.h"
 144 #include "third_party/WebKit/public/web/WebHistoryItem.h"
 145 #include "third_party/WebKit/public/web/WebHitTestResult.h"
 146 #include "third_party/WebKit/public/web/WebInputElement.h"
 147 #include "third_party/WebKit/public/web/WebInputEvent.h"
 148 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 149 #include "third_party/WebKit/public/web/WebMediaPlayerAction.h"
 150 #include "third_party/WebKit/public/web/WebNavigationPolicy.h"
 151 #include "third_party/WebKit/public/web/WebNetworkStateNotifier.h"
 152 #include "third_party/WebKit/public/web/WebNodeList.h"
 153 #include "third_party/WebKit/public/web/WebPageSerializer.h"
 154 #include "third_party/WebKit/public/web/WebPlugin.h"
 155 #include "third_party/WebKit/public/web/WebPluginAction.h"
 156 #include "third_party/WebKit/public/web/WebPluginContainer.h"
 157 #include "third_party/WebKit/public/web/WebPluginDocument.h"
 158 #include "third_party/WebKit/public/web/WebRange.h"
 159 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
 160 #include "third_party/WebKit/public/web/WebScriptSource.h"
 161 #include "third_party/WebKit/public/web/WebSearchableFormData.h"
 162 #include "third_party/WebKit/public/web/WebSecurityOrigin.h"
 163 #include "third_party/WebKit/public/web/WebSecurityPolicy.h"
 164 #include "third_party/WebKit/public/web/WebSettings.h"
 165 #include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
 166 #include "third_party/WebKit/public/web/WebView.h"
 167 #include "third_party/WebKit/public/web/WebWindowFeatures.h"
 168 #include "third_party/WebKit/public/web/default/WebRenderTheme.h"
 169 #include "third_party/icu/source/common/unicode/uchar.h"
 170 #include "third_party/icu/source/common/unicode/uscript.h"
 171 #include "ui/base/clipboard/clipboard.h"
 172 #include "ui/base/ui_base_switches_util.h"
 173 #include "ui/events/latency_info.h"
 174 #include "ui/gfx/geometry/point.h"
 175 #include "ui/gfx/geometry/rect.h"
 176 #include "ui/gfx/geometry/rect_conversions.h"
 177 #include "ui/gfx/geometry/size_conversions.h"
 178 #include "ui/gfx/native_widget_types.h"
 179 #include "v8/include/v8.h"
 180
 181 #if defined(OS_ANDROID)
 182 #include <cpu-features.h>
 183
 184 #include "content/renderer/android/address_detector.h"
 185 #include "content/renderer/android/content_detector.h"
 186 #include "content/renderer/android/email_detector.h"
 187 #include "content/renderer/android/phone_number_detector.h"
 188 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
 189 #include "third_party/WebKit/public/platform/WebFloatRect.h"
 190 #include "ui/gfx/geometry/rect_f.h"
 191
 192 #elif defined(OS_WIN)
 193 // TODO(port): these files are currently Windows only because they concern:
 194 //   * theming
 195 #include "ui/native_theme/native_theme_win.h"
 196 #elif defined(USE_X11)
 197 #include "ui/native_theme/native_theme.h"
 198 #elif defined(OS_MACOSX)
 199 #include "skia/ext/skia_utils_mac.h"
 200 #endif
 201
 202 #if defined(ENABLE_PLUGINS)
 203 #include "content/renderer/npapi/webplugin_delegate_proxy.h"
 204 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 205 #include "content/renderer/pepper/pepper_plugin_registry.h"
 206 #endif
 207
 208 #if defined(ENABLE_WEBRTC)
 209 #include "content/renderer/media/rtc_peer_connection_handler.h"
 210 #include "content/renderer/media/webrtc/peer_connection_dependency_factory.h"
 211 #endif
 212
 213 using blink::WebAXObject;
 214 using blink::WebApplicationCacheHost;
 215 using blink::WebApplicationCacheHostClient;
 216 using blink::WebCString;
 217 using blink::WebColor;
 218 using blink::WebColorName;
 219 using blink::WebConsoleMessage;
 220 using blink::WebData;
 221 using blink::WebDataSource;
 222 using blink::WebDocument;
 223 using blink::WebDragData;
 224 using blink::WebDragOperation;
 225 using blink::WebDragOperationsMask;
 226 using blink::WebElement;
 227 using blink::WebFileChooserCompletion;
 228 using blink::WebFindOptions;
 229 using blink::WebFormControlElement;
 230 using blink::WebFormElement;
 231 using blink::WebFrame;
 232 using blink::WebGestureEvent;
 233 using blink::WebHistoryItem;
 234 using blink::WebHTTPBody;
 235 using blink::WebIconURL;
 236 using blink::WebImage;
 237 using blink::WebInputElement;
 238 using blink::WebInputEvent;
 239 using blink::WebLocalFrame;
 240 using blink::WebMediaPlayerAction;
 241 using blink::WebMouseEvent;
 242 using blink::WebNavigationPolicy;
 243 using blink::WebNavigationType;
 244 using blink::WebNode;
 245 using blink::WebPageSerializer;
 246 using blink::WebPageSerializerClient;
 247 using blink::WebPeerConnection00Handler;
 248 using blink::WebPeerConnection00HandlerClient;
 249 using blink::WebPeerConnectionHandler;
 250 using blink::WebPeerConnectionHandlerClient;
 251 using blink::WebPluginAction;
 252 using blink::WebPluginContainer;
 253 using blink::WebPluginDocument;
 254 using blink::WebPoint;
 255 using blink::WebRange;
 256 using blink::WebRect;
 257 using blink::WebReferrerPolicy;
 258 using blink::WebScriptSource;
 259 using blink::WebSearchableFormData;
 260 using blink::WebSecurityOrigin;
 261 using blink::WebSecurityPolicy;
 262 using blink::WebSettings;
 263 using blink::WebSize;
 264 using blink::WebStorageNamespace;
 265 using blink::WebStorageQuotaCallbacks;
 266 using blink::WebStorageQuotaError;
 267 using blink::WebStorageQuotaType;
 268 using blink::WebString;
 269 using blink::WebTextAffinity;
 270 using blink::WebTextDirection;
 271 using blink::WebTouchEvent;
 272 using blink::WebURL;
 273 using blink::WebURLError;
 274 using blink::WebURLRequest;
 275 using blink::WebURLResponse;
 276 using blink::WebUserGestureIndicator;
 277 using blink::WebVector;
 278 using blink::WebView;
 279 using blink::WebWidget;
 280 using blink::WebWindowFeatures;
 281 using blink::WebNetworkStateNotifier;
 282 using blink::WebRuntimeFeatures;
 283 using base::Time;
 284 using base::TimeDelta;
 285
 286 #if defined(OS_ANDROID)
 287 using blink::WebContentDetectionResult;
 288 using blink::WebFloatPoint;
 289 using blink::WebFloatRect;
 290 using blink::WebHitTestResult;
 291 #endif
 292
 293 namespace content {
 294
 295 //-----------------------------------------------------------------------------
 296
 297 typedef std::map<blink::WebView*, RenderViewImpl*> ViewMap;
 298 static base::LazyInstance<ViewMap> g_view_map = LAZY_INSTANCE_INITIALIZER;
 299 typedef std::map<int32, RenderViewImpl*> RoutingIDViewMap;
 300 static base::LazyInstance<RoutingIDViewMap> g_routing_id_view_map =
 301     LAZY_INSTANCE_INITIALIZER;
 302
 303 // Time, in seconds, we delay before sending content state changes (such as form
 304 // state and scroll position) to the browser. We delay sending changes to avoid
 305 // spamming the browser.
 306 // To avoid having tab/session restore require sending a message to get the
 307 // current content state during tab closing we use a shorter timeout for the
 308 // foreground renderer. This means there is a small window of time from which
 309 // content state is modified and not sent to session restore, but this is
 310 // better than having to wake up all renderers during shutdown.
 311 const int kDelaySecondsForContentStateSyncHidden = 5;
 312 const int kDelaySecondsForContentStateSync = 1;
 313
 314 #if defined(OS_ANDROID)
 315 // Delay between tapping in content and launching the associated android intent.
 316 // Used to allow users see what has been recognized as content.
 317 const size_t kContentIntentDelayMilliseconds = 700;
 318 #endif
 319
 320 static RenderViewImpl* (*g_create_render_view_impl)(
 321     CompositorDependencies* compositor_deps,
 322     const ViewMsg_New_Params&) = nullptr;
 323
 324 // static
 325 Referrer RenderViewImpl::GetReferrerFromRequest(
 326     WebFrame* frame,
 327     const WebURLRequest& request) {
 328   return Referrer(GURL(request.httpHeaderField(WebString::fromUTF8("Referer"))),
 329                   request.referrerPolicy());
 330 }
 331
 332 // static
 333 WindowOpenDisposition RenderViewImpl::NavigationPolicyToDisposition(
 334     WebNavigationPolicy policy) {
 335   switch (policy) {
 336     case blink::WebNavigationPolicyIgnore:
 337       return IGNORE_ACTION;
 338     case blink::WebNavigationPolicyDownload:
 339       return SAVE_TO_DISK;
 340     case blink::WebNavigationPolicyCurrentTab:
 341       return CURRENT_TAB;
 342     case blink::WebNavigationPolicyNewBackgroundTab:
 343       return NEW_BACKGROUND_TAB;
 344     case blink::WebNavigationPolicyNewForegroundTab:
 345       return NEW_FOREGROUND_TAB;
 346     case blink::WebNavigationPolicyNewWindow:
 347       return NEW_WINDOW;
 348     case blink::WebNavigationPolicyNewPopup:
 349       return NEW_POPUP;
 350   default:
 351     NOTREACHED() << "Unexpected WebNavigationPolicy";
 352     return IGNORE_ACTION;
 353   }
 354 }
 355
 356 // Returns true if the device scale is high enough that losing subpixel
 357 // antialiasing won't have a noticeable effect on text quality.
 358 static bool DeviceScaleEnsuresTextQuality(float device_scale_factor) {
 359 #if defined(OS_ANDROID)
 360   // On Android, we never have subpixel antialiasing.
 361   return true;
 362 #else
 363   return device_scale_factor > 1.5f;
 364 #endif
 365
 366 }
 367
 368 static bool PreferCompositingToLCDText(CompositorDependencies* compositor_deps,
 369                                        float device_scale_factor) {
 370   const base::CommandLine& command_line =
 371       *base::CommandLine::ForCurrentProcess();
 372   if (command_line.HasSwitch(switches::kDisablePreferCompositingToLCDText))
 373     return false;
 374   if (command_line.HasSwitch(switches::kEnablePreferCompositingToLCDText))
 375     return true;
 376   if (!compositor_deps->IsLcdTextEnabled())
 377     return true;
 378   return DeviceScaleEnsuresTextQuality(device_scale_factor);
 379 }
 380
 381 static FaviconURL::IconType ToFaviconType(blink::WebIconURL::Type type) {
 382   switch (type) {
 383     case blink::WebIconURL::TypeFavicon:
 384       return FaviconURL::FAVICON;
 385     case blink::WebIconURL::TypeTouch:
 386       return FaviconURL::TOUCH_ICON;
 387     case blink::WebIconURL::TypeTouchPrecomposed:
 388       return FaviconURL::TOUCH_PRECOMPOSED_ICON;
 389     case blink::WebIconURL::TypeInvalid:
 390       return FaviconURL::INVALID_ICON;
 391   }
 392   return FaviconURL::INVALID_ICON;
 393 }
 394
 395 static void ConvertToFaviconSizes(
 396     const blink::WebVector<blink::WebSize>& web_sizes,
 397     std::vector<gfx::Size>* sizes) {
 398   DCHECK(sizes->empty());
 399   sizes->reserve(web_sizes.size());
 400   for (size_t i = 0; i < web_sizes.size(); ++i)
 401     sizes->push_back(gfx::Size(web_sizes[i]));
 402 }
 403
 404 ///////////////////////////////////////////////////////////////////////////////
 405
 406 struct RenderViewImpl::PendingFileChooser {
 407   PendingFileChooser(const FileChooserParams& p, WebFileChooserCompletion* c)
 408       : params(p),
 409         completion(c) {
 410   }
 411   FileChooserParams params;
 412   WebFileChooserCompletion* completion;  // MAY BE NULL to skip callback.
 413 };
 414
 415 namespace {
 416
 417 class WebWidgetLockTarget : public MouseLockDispatcher::LockTarget {
 418  public:
 419   explicit WebWidgetLockTarget(blink::WebWidget* webwidget)
 420       : webwidget_(webwidget) {}
 421
 422   void OnLockMouseACK(bool succeeded) override {
 423     if (succeeded)
 424       webwidget_->didAcquirePointerLock();
 425     else
 426       webwidget_->didNotAcquirePointerLock();
 427   }
 428
 429   void OnMouseLockLost() override { webwidget_->didLosePointerLock(); }
 430
 431   bool HandleMouseLockedInputEvent(const blink::WebMouseEvent& event) override {
 432     // The WebWidget handles mouse lock in WebKit's handleInputEvent().
 433     return false;
 434   }
 435
 436  private:
 437   blink::WebWidget* webwidget_;
 438 };
 439
 440 WebDragData DropDataToWebDragData(const DropData& drop_data) {
 441   std::vector<WebDragData::Item> item_list;
 442
 443   // These fields are currently unused when dragging into WebKit.
 444   DCHECK(drop_data.download_metadata.empty());
 445   DCHECK(drop_data.file_contents.empty());
 446   DCHECK(drop_data.file_description_filename.empty());
 447
 448   if (!drop_data.text.is_null()) {
 449     WebDragData::Item item;
 450     item.storageType = WebDragData::Item::StorageTypeString;
 451     item.stringType = WebString::fromUTF8(ui::Clipboard::kMimeTypeText);
 452     item.stringData = drop_data.text.string();
 453     item_list.push_back(item);
 454   }
 455
 456   // TODO(dcheng): Do we need to distinguish between null and empty URLs? Is it
 457   // meaningful to write an empty URL to the clipboard?
 458   if (!drop_data.url.is_empty()) {
 459     WebDragData::Item item;
 460     item.storageType = WebDragData::Item::StorageTypeString;
 461     item.stringType = WebString::fromUTF8(ui::Clipboard::kMimeTypeURIList);
 462     item.stringData = WebString::fromUTF8(drop_data.url.spec());
 463     item.title = drop_data.url_title;
 464     item_list.push_back(item);
 465   }
 466
 467   if (!drop_data.html.is_null()) {
 468     WebDragData::Item item;
 469     item.storageType = WebDragData::Item::StorageTypeString;
 470     item.stringType = WebString::fromUTF8(ui::Clipboard::kMimeTypeHTML);
 471     item.stringData = drop_data.html.string();
 472     item.baseURL = drop_data.html_base_url;
 473     item_list.push_back(item);
 474   }
 475
 476   for (std::vector<ui::FileInfo>::const_iterator it =
 477            drop_data.filenames.begin();
 478        it != drop_data.filenames.end();
 479        ++it) {
 480     WebDragData::Item item;
 481     item.storageType = WebDragData::Item::StorageTypeFilename;
 482     item.filenameData = it->path.AsUTF16Unsafe();
 483     item.displayNameData = it->display_name.AsUTF16Unsafe();
 484     item_list.push_back(item);
 485   }
 486
 487   for (std::vector<DropData::FileSystemFileInfo>::const_iterator it =
 488            drop_data.file_system_files.begin();
 489        it != drop_data.file_system_files.end();
 490        ++it) {
 491     WebDragData::Item item;
 492     item.storageType = WebDragData::Item::StorageTypeFileSystemFile;
 493     item.fileSystemURL = it->url;
 494     item.fileSystemFileSize = it->size;
 495     item_list.push_back(item);
 496   }
 497
 498   for (std::map<base::string16, base::string16>::const_iterator it =
 499            drop_data.custom_data.begin();
 500        it != drop_data.custom_data.end();
 501        ++it) {
 502     WebDragData::Item item;
 503     item.storageType = WebDragData::Item::StorageTypeString;
 504     item.stringType = it->first;
 505     item.stringData = it->second;
 506     item_list.push_back(item);
 507   }
 508
 509   WebDragData result;
 510   result.initialize();
 511   result.setItems(item_list);
 512   result.setFilesystemId(drop_data.filesystem_id);
 513   return result;
 514 }
 515
 516 typedef void (*SetFontFamilyWrapper)(blink::WebSettings*,
 517                                      const base::string16&,
 518                                      UScriptCode);
 519
 520 void SetStandardFontFamilyWrapper(WebSettings* settings,
 521                                   const base::string16& font,
 522                                   UScriptCode script) {
 523   settings->setStandardFontFamily(font, script);
 524 }
 525
 526 void SetFixedFontFamilyWrapper(WebSettings* settings,
 527                                const base::string16& font,
 528                                UScriptCode script) {
 529   settings->setFixedFontFamily(font, script);
 530 }
 531
 532 void SetSerifFontFamilyWrapper(WebSettings* settings,
 533                                const base::string16& font,
 534                                UScriptCode script) {
 535   settings->setSerifFontFamily(font, script);
 536 }
 537
 538 void SetSansSerifFontFamilyWrapper(WebSettings* settings,
 539                                    const base::string16& font,
 540                                    UScriptCode script) {
 541   settings->setSansSerifFontFamily(font, script);
 542 }
 543
 544 void SetCursiveFontFamilyWrapper(WebSettings* settings,
 545                                  const base::string16& font,
 546                                  UScriptCode script) {
 547   settings->setCursiveFontFamily(font, script);
 548 }
 549
 550 void SetFantasyFontFamilyWrapper(WebSettings* settings,
 551                                  const base::string16& font,
 552                                  UScriptCode script) {
 553   settings->setFantasyFontFamily(font, script);
 554 }
 555
 556 void SetPictographFontFamilyWrapper(WebSettings* settings,
 557                                     const base::string16& font,
 558                                     UScriptCode script) {
 559   settings->setPictographFontFamily(font, script);
 560 }
 561
 562 // If |scriptCode| is a member of a family of "similar" script codes, returns
 563 // the script code in that family that is used by WebKit for font selection
 564 // purposes.  For example, USCRIPT_KATAKANA_OR_HIRAGANA and USCRIPT_JAPANESE are
 565 // considered equivalent for the purposes of font selection.  WebKit uses the
 566 // script code USCRIPT_KATAKANA_OR_HIRAGANA.  So, if |scriptCode| is
 567 // USCRIPT_JAPANESE, the function returns USCRIPT_KATAKANA_OR_HIRAGANA.  WebKit
 568 // uses different scripts than the ones in Chrome pref names because the version
 569 // of ICU included on certain ports does not have some of the newer scripts.  If
 570 // |scriptCode| is not a member of such a family, returns |scriptCode|.
 571 UScriptCode GetScriptForWebSettings(UScriptCode scriptCode) {
 572   switch (scriptCode) {
 573     case USCRIPT_HIRAGANA:
 574     case USCRIPT_KATAKANA:
 575     case USCRIPT_JAPANESE:
 576       return USCRIPT_KATAKANA_OR_HIRAGANA;
 577     case USCRIPT_KOREAN:
 578       return USCRIPT_HANGUL;
 579     default:
 580       return scriptCode;
 581   }
 582 }
 583
 584 void ApplyFontsFromMap(const ScriptFontFamilyMap& map,
 585                        SetFontFamilyWrapper setter,
 586                        WebSettings* settings) {
 587   for (ScriptFontFamilyMap::const_iterator it = map.begin(); it != map.end();
 588        ++it) {
 589     int32 script = u_getPropertyValueEnum(UCHAR_SCRIPT, (it->first).c_str());
 590     if (script >= 0 && script < USCRIPT_CODE_LIMIT) {
 591       UScriptCode code = static_cast<UScriptCode>(script);
 592       (*setter)(settings, it->second, GetScriptForWebSettings(code));
 593     }
 594   }
 595 }
 596
 597 void ApplyBlinkSettings(const base::CommandLine& command_line,
 598                         WebSettings* settings) {
 599   if (!command_line.HasSwitch(switches::kBlinkSettings))
 600     return;
 601
 602   std::vector<std::string> blink_settings;
 603   base::SplitString(
 604       command_line.GetSwitchValueASCII(switches::kBlinkSettings), ',',
 605       &blink_settings);
 606   for (const std::string& setting : blink_settings) {
 607     size_t pos = setting.find('=');
 608     settings->setFromStrings(
 609         blink::WebString::fromLatin1(setting.substr(0, pos)),
 610         blink::WebString::fromLatin1(
 611             pos == std::string::npos ? "" : setting.substr(pos + 1)));
 612   }
 613 }
 614
 615 // Looks up and returns the WebFrame corresponding to a given opener frame
 616 // routing ID.  Also stores the opener's RenderView routing ID into
 617 // |opener_view_routing_id|.
 618 WebFrame* ResolveOpener(int opener_frame_routing_id,
 619                         int* opener_view_routing_id) {
 620   *opener_view_routing_id = MSG_ROUTING_NONE;
 621   if (opener_frame_routing_id == MSG_ROUTING_NONE)
 622     return nullptr;
 623
 624   // Opener routing ID could refer to either a RenderFrameProxy or a
 625   // RenderFrame, so need to check both.
 626   RenderFrameProxy* opener_proxy =
 627       RenderFrameProxy::FromRoutingID(opener_frame_routing_id);
 628   if (opener_proxy) {
 629     *opener_view_routing_id = opener_proxy->render_view()->GetRoutingID();
 630
 631     // TODO(nasko,alexmos): This check won't be needed once swapped-out:// is
 632     // gone.
 633     if (opener_proxy->IsMainFrameDetachedFromTree()) {
 634       DCHECK(!RenderFrameProxy::IsSwappedOutStateForbidden());
 635       return opener_proxy->render_view()->webview()->mainFrame();
 636     } else {
 637       return opener_proxy->web_frame();
 638     }
 639   }
 640
 641   RenderFrameImpl* opener_frame =
 642       RenderFrameImpl::FromRoutingID(opener_frame_routing_id);
 643   if (opener_frame) {
 644     *opener_view_routing_id = opener_frame->render_view()->GetRoutingID();
 645     return opener_frame->GetWebFrame();
 646   }
 647
 648   return nullptr;
 649 }
 650
 651 }  // namespace
 652
 653 RenderViewImpl::RenderViewImpl(CompositorDependencies* compositor_deps,
 654                                const ViewMsg_New_Params& params)
 655     : RenderWidget(compositor_deps,
 656                    blink::WebPopupTypeNone,
 657                    params.initial_size.screen_info,
 658                    params.swapped_out,
 659                    params.hidden,
 660                    params.never_visible),
 661       webkit_preferences_(params.web_preferences),
 662       send_content_state_immediately_(false),
 663       enabled_bindings_(0),
 664       send_preferred_size_changes_(false),
 665       navigation_gesture_(NavigationGestureUnknown),
 666       opened_by_user_gesture_(true),
 667       opener_suppressed_(false),
 668       suppress_dialogs_until_swap_out_(false),
 669       page_id_(-1),
 670       next_page_id_(params.next_page_id),
 671       history_list_offset_(-1),
 672       history_list_length_(0),
 673       frames_in_progress_(0),
 674       target_url_status_(TARGET_NONE),
 675       uses_temporary_zoom_level_(false),
 676 #if defined(OS_ANDROID)
 677       top_controls_constraints_(TOP_CONTROLS_STATE_BOTH),
 678 #endif
 679       has_scrolled_focused_editable_node_into_rect_(false),
 680       main_render_frame_(nullptr),
 681       speech_recognition_dispatcher_(NULL),
 682       mouse_lock_dispatcher_(NULL),
 683 #if defined(OS_ANDROID)
 684       expected_content_intent_id_(0),
 685 #endif
 686 #if defined(OS_WIN)
 687       focused_plugin_id_(-1),
 688 #endif
 689 #if defined(ENABLE_PLUGINS)
 690       plugin_find_handler_(NULL),
 691       focused_pepper_plugin_(NULL),
 692       pepper_last_mouse_event_target_(NULL),
 693 #endif
 694       enumeration_completion_id_(0),
 695       session_storage_namespace_id_(params.session_storage_namespace_id),
 696       page_scale_factor_is_one_(true) {
 697 }
 698
 699 void RenderViewImpl::Initialize(const ViewMsg_New_Params& params,
 700                                 bool was_created_by_renderer) {
 701   routing_id_ = params.view_id;
 702   surface_id_ = params.surface_id;
 703
 704   int opener_view_routing_id;
 705   WebFrame* opener_frame =
 706       ResolveOpener(params.opener_frame_route_id, &opener_view_routing_id);
 707   if (opener_view_routing_id != MSG_ROUTING_NONE && was_created_by_renderer)
 708     opener_id_ = opener_view_routing_id;
 709
 710   display_mode_= params.initial_size.display_mode;
 711
 712   // Ensure we start with a valid next_page_id_ from the browser.
 713   DCHECK_GE(next_page_id_, 0);
 714
 715   if (params.main_frame_routing_id != MSG_ROUTING_NONE) {
 716     main_render_frame_ = RenderFrameImpl::Create(
 717         this, params.main_frame_routing_id);
 718     // The main frame WebLocalFrame object is closed by
 719     // RenderFrameImpl::frameDetached().
 720     WebLocalFrame* web_frame = WebLocalFrame::create(
 721         blink::WebTreeScopeType::Document, main_render_frame_);
 722     main_render_frame_->SetWebFrame(web_frame);
 723   }
 724
 725   webwidget_ = WebView::create(this);
 726   webwidget_mouse_lock_target_.reset(new WebWidgetLockTarget(webwidget_));
 727
 728   g_view_map.Get().insert(std::make_pair(webview(), this));
 729   g_routing_id_view_map.Get().insert(std::make_pair(routing_id_, this));
 730
 731   const base::CommandLine& command_line =
 732       *base::CommandLine::ForCurrentProcess();
 733
 734   if (command_line.HasSwitch(switches::kStatsCollectionController))
 735     stats_collection_observer_.reset(new StatsCollectionObserver(this));
 736
 737   RenderFrameProxy* proxy = NULL;
 738   if (params.proxy_routing_id != MSG_ROUTING_NONE) {
 739     CHECK(params.swapped_out);
 740     if (main_render_frame_) {
 741       proxy = RenderFrameProxy::CreateProxyToReplaceFrame(
 742           main_render_frame_, params.proxy_routing_id,
 743           blink::WebTreeScopeType::Document);
 744       main_render_frame_->set_render_frame_proxy(proxy);
 745     } else {
 746       proxy = RenderFrameProxy::CreateFrameProxy(
 747           params.proxy_routing_id,
 748           MSG_ROUTING_NONE,
 749           routing_id_,
 750           params.replicated_frame_state);
 751     }
 752   }
 753
 754   // When not using swapped out state, just use the WebRemoteFrame as the main
 755   // frame.
 756   if (proxy && RenderFrameProxy::IsSwappedOutStateForbidden()) {
 757     webview()->setMainFrame(proxy->web_frame());
 758     // Initialize the WebRemoteFrame with information replicated from the
 759     // browser process.
 760     proxy->SetReplicatedState(params.replicated_frame_state);
 761   } else {
 762     webview()->setMainFrame(main_render_frame_->GetWebFrame());
 763   }
 764   if (main_render_frame_)
 765     main_render_frame_->Initialize();
 766
 767 #if defined(OS_ANDROID)
 768   content_detectors_.push_back(linked_ptr<ContentDetector>(
 769       new AddressDetector()));
 770   const std::string& contry_iso =
 771       params.renderer_preferences.network_contry_iso;
 772   if (!contry_iso.empty()) {
 773     content_detectors_.push_back(linked_ptr<ContentDetector>(
 774         new PhoneNumberDetector(contry_iso)));
 775   }
 776   content_detectors_.push_back(linked_ptr<ContentDetector>(
 777       new EmailDetector()));
 778 #endif
 779
 780   RenderThread::Get()->AddRoute(routing_id_, this);
 781   // Take a reference on behalf of the RenderThread.  This will be balanced
 782   // when we receive ViewMsg_Close in the RenderWidget (which RenderView
 783   // inherits from).
 784   AddRef();
 785   if (RenderThreadImpl::current()) {
 786     RenderThreadImpl::current()->WidgetCreated();
 787     if (is_hidden_)
 788       RenderThreadImpl::current()->WidgetHidden();
 789   }
 790
 791   // If this is a popup, we must wait for the CreatingNew_ACK message before
 792   // completing initialization.  Otherwise, we can finish it now.
 793   if (opener_id_ == MSG_ROUTING_NONE) {
 794     did_show_ = true;
 795     CompleteInit();
 796   }
 797
 798   webview()->setDeviceScaleFactor(device_scale_factor_);
 799   webview()->setDisplayMode(display_mode_);
 800   webview()->settings()->setPreferCompositingToLCDTextEnabled(
 801       PreferCompositingToLCDText(compositor_deps_, device_scale_factor_));
 802   webview()->settings()->setThreadedScrollingEnabled(
 803       !command_line.HasSwitch(switches::kDisableThreadedScrolling));
 804   webview()->settings()->setRootLayerScrolls(
 805       command_line.HasSwitch(switches::kRootLayerScrolls));
 806
 807   ApplyWebPreferencesInternal(webkit_preferences_, webview(), compositor_deps_);
 808
 809   if (switches::IsTouchDragDropEnabled())
 810     webview()->settings()->setTouchDragDropEnabled(true);
 811
 812   if (switches::IsTouchEditingEnabled())
 813     webview()->settings()->setTouchEditingEnabled(true);
 814
 815   WebSettings::SelectionStrategyType selection_strategy =
 816       WebSettings::SelectionStrategyType::Character;
 817   const std::string selection_strategy_str =
 818       base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
 819           switches::kTouchTextSelectionStrategy);
 820   if (selection_strategy_str == "direction")
 821     selection_strategy = WebSettings::SelectionStrategyType::Direction;
 822   webview()->settings()->setSelectionStrategy(selection_strategy);
 823
 824   // Set the main frame's name.  Only needs to be done for WebLocalFrames,
 825   // since the remote case was handled as part of SetReplicatedState on the
 826   // proxy above.
 827   if (!params.replicated_frame_state.name.empty() &&
 828       webview()->mainFrame()->isWebLocalFrame()) {
 829     webview()->mainFrame()->setName(
 830         blink::WebString::fromUTF8(params.replicated_frame_state.name));
 831   }
 832
 833   // TODO(davidben): Move this state from Blink into content.
 834   if (params.window_was_created_with_opener)
 835     webview()->setOpenedByDOM();
 836
 837   OnSetRendererPrefs(params.renderer_preferences);
 838
 839   ApplyBlinkSettings(command_line, webview()->settings());
 840
 841   if (!params.enable_auto_resize) {
 842     OnResize(params.initial_size);
 843   } else {
 844     OnEnableAutoResize(params.min_size, params.max_size);
 845   }
 846
 847   new MHTMLGenerator(this);
 848 #if defined(OS_MACOSX)
 849   new TextInputClientObserver(this);
 850 #endif  // defined(OS_MACOSX)
 851
 852   // The next group of objects all implement RenderViewObserver, so are deleted
 853   // along with the RenderView automatically.
 854   mouse_lock_dispatcher_ = new RenderViewMouseLockDispatcher(this);
 855
 856   history_controller_.reset(new HistoryController(this));
 857
 858   new IdleUserDetector(this);
 859
 860   if (command_line.HasSwitch(switches::kDomAutomationController))
 861     enabled_bindings_ |= BINDINGS_POLICY_DOM_AUTOMATION;
 862   if (command_line.HasSwitch(switches::kStatsCollectionController))
 863     enabled_bindings_ |= BINDINGS_POLICY_STATS_COLLECTION;
 864
 865   GetContentClient()->renderer()->RenderViewCreated(this);
 866
 867   // If we have an opener_frame but we weren't created by a renderer, then it's
 868   // the browser asking us to set our opener to another frame.
 869   if (opener_frame && !was_created_by_renderer)
 870     webview()->mainFrame()->setOpener(opener_frame);
 871
 872   // If we are initially swapped out, navigate to kSwappedOutURL.
 873   // This ensures we are in a unique origin that others cannot script.
 874   if (is_swapped_out_ && webview()->mainFrame()->isWebLocalFrame())
 875     main_render_frame_->NavigateToSwappedOutURL();
 876 }
 877
 878 RenderViewImpl::~RenderViewImpl() {
 879   for (BitmapMap::iterator it = disambiguation_bitmaps_.begin();
 880        it != disambiguation_bitmaps_.end();
 881        ++it)
 882     delete it->second;
 883
 884   // If file chooser is still waiting for answer, dispatch empty answer.
 885   while (!file_chooser_completions_.empty()) {
 886     if (file_chooser_completions_.front()->completion) {
 887       file_chooser_completions_.front()->completion->didChooseFile(
 888           WebVector<WebString>());
 889     }
 890     file_chooser_completions_.pop_front();
 891   }
 892
 893 #if defined(OS_ANDROID)
 894   // The date/time picker client is both a scoped_ptr member of this class and
 895   // a RenderViewObserver. Reset it to prevent double deletion.
 896   date_time_picker_client_.reset();
 897 #endif
 898
 899 #ifndef NDEBUG
 900   // Make sure we are no longer referenced by the ViewMap or RoutingIDViewMap.
 901   ViewMap* views = g_view_map.Pointer();
 902   for (ViewMap::iterator it = views->begin(); it != views->end(); ++it)
 903     DCHECK_NE(this, it->second) << "Failed to call Close?";
 904   RoutingIDViewMap* routing_id_views = g_routing_id_view_map.Pointer();
 905   for (RoutingIDViewMap::iterator it = routing_id_views->begin();
 906        it != routing_id_views->end(); ++it)
 907     DCHECK_NE(this, it->second) << "Failed to call Close?";
 908 #endif
 909
 910   FOR_EACH_OBSERVER(RenderViewObserver, observers_, RenderViewGone());
 911   FOR_EACH_OBSERVER(RenderViewObserver, observers_, OnDestruct());
 912 }
 913
 914 /*static*/
 915 RenderViewImpl* RenderViewImpl::FromWebView(WebView* webview) {
 916   ViewMap* views = g_view_map.Pointer();
 917   ViewMap::iterator it = views->find(webview);
 918   return it == views->end() ? NULL : it->second;
 919 }
 920
 921 /*static*/
 922 RenderView* RenderView::FromWebView(blink::WebView* webview) {
 923   return RenderViewImpl::FromWebView(webview);
 924 }
 925
 926 /*static*/
 927 RenderViewImpl* RenderViewImpl::FromRoutingID(int32 routing_id) {
 928   RoutingIDViewMap* views = g_routing_id_view_map.Pointer();
 929   RoutingIDViewMap::iterator it = views->find(routing_id);
 930   return it == views->end() ? NULL : it->second;
 931 }
 932
 933 /*static*/
 934 RenderView* RenderView::FromRoutingID(int routing_id) {
 935   return RenderViewImpl::FromRoutingID(routing_id);
 936 }
 937
 938 /* static */
 939 size_t RenderView::GetRenderViewCount() {
 940   return g_view_map.Get().size();
 941 }
 942
 943 /*static*/
 944 void RenderView::ForEach(RenderViewVisitor* visitor) {
 945   ViewMap* views = g_view_map.Pointer();
 946   for (ViewMap::iterator it = views->begin(); it != views->end(); ++it) {
 947     if (!visitor->Visit(it->second))
 948       return;
 949   }
 950 }
 951
 952 /*static*/
 953 void RenderView::ApplyWebPreferences(const WebPreferences& prefs,
 954                                      WebView* web_view) {
 955   WebSettings* settings = web_view->settings();
 956   ApplyFontsFromMap(prefs.standard_font_family_map,
 957                     SetStandardFontFamilyWrapper, settings);
 958   ApplyFontsFromMap(prefs.fixed_font_family_map,
 959                     SetFixedFontFamilyWrapper, settings);
 960   ApplyFontsFromMap(prefs.serif_font_family_map,
 961                     SetSerifFontFamilyWrapper, settings);
 962   ApplyFontsFromMap(prefs.sans_serif_font_family_map,
 963                     SetSansSerifFontFamilyWrapper, settings);
 964   ApplyFontsFromMap(prefs.cursive_font_family_map,
 965                     SetCursiveFontFamilyWrapper, settings);
 966   ApplyFontsFromMap(prefs.fantasy_font_family_map,
 967                     SetFantasyFontFamilyWrapper, settings);
 968   ApplyFontsFromMap(prefs.pictograph_font_family_map,
 969                     SetPictographFontFamilyWrapper, settings);
 970   settings->setDefaultFontSize(prefs.default_font_size);
 971   settings->setDefaultFixedFontSize(prefs.default_fixed_font_size);
 972   settings->setMinimumFontSize(prefs.minimum_font_size);
 973   settings->setMinimumLogicalFontSize(prefs.minimum_logical_font_size);
 974   settings->setDefaultTextEncodingName(
 975       base::ASCIIToUTF16(prefs.default_encoding));
 976   settings->setJavaScriptEnabled(prefs.javascript_enabled);
 977   settings->setWebSecurityEnabled(prefs.web_security_enabled);
 978   settings->setJavaScriptCanOpenWindowsAutomatically(
 979       prefs.javascript_can_open_windows_automatically);
 980   settings->setLoadsImagesAutomatically(prefs.loads_images_automatically);
 981   settings->setImagesEnabled(prefs.images_enabled);
 982   settings->setPluginsEnabled(prefs.plugins_enabled);
 983   settings->setDOMPasteAllowed(prefs.dom_paste_enabled);
 984   settings->setUsesEncodingDetector(prefs.uses_universal_detector);
 985   settings->setTextAreasAreResizable(prefs.text_areas_are_resizable);
 986   settings->setAllowScriptsToCloseWindows(prefs.allow_scripts_to_close_windows);
 987   settings->setDownloadableBinaryFontsEnabled(prefs.remote_fonts_enabled);
 988   settings->setJavaScriptCanAccessClipboard(
 989       prefs.javascript_can_access_clipboard);
 990   WebRuntimeFeatures::enableXSLT(prefs.xslt_enabled);
 991   WebRuntimeFeatures::enableSlimmingPaint(prefs.slimming_paint_enabled);
 992   settings->setXSSAuditorEnabled(prefs.xss_auditor_enabled);
 993   settings->setDNSPrefetchingEnabled(prefs.dns_prefetching_enabled);
 994   settings->setLocalStorageEnabled(prefs.local_storage_enabled);
 995   settings->setSyncXHRInDocumentsEnabled(prefs.sync_xhr_in_documents_enabled);
 996   WebRuntimeFeatures::enableDatabase(prefs.databases_enabled);
 997   settings->setOfflineWebApplicationCacheEnabled(
 998       prefs.application_cache_enabled);
 999   settings->setCaretBrowsingEnabled(prefs.caret_browsing_enabled);
1000   settings->setHyperlinkAuditingEnabled(prefs.hyperlink_auditing_enabled);
1001   settings->setCookieEnabled(prefs.cookie_enabled);
1002   settings->setNavigateOnDragDrop(prefs.navigate_on_drag_drop);
1003
1004   settings->setJavaEnabled(prefs.java_enabled);
1005
1006   // By default, allow_universal_access_from_file_urls is set to false and thus
1007   // we mitigate attacks from local HTML files by not granting file:// URLs
1008   // universal access. Only test shell will enable this.
1009   settings->setAllowUniversalAccessFromFileURLs(
1010       prefs.allow_universal_access_from_file_urls);
1011   settings->setAllowFileAccessFromFileURLs(
1012       prefs.allow_file_access_from_file_urls);
1013
1014   // Enable the web audio API if requested on the command line.
1015   settings->setWebAudioEnabled(prefs.webaudio_enabled);
1016
1017   // Enable experimental WebGL support if requested on command line
1018   // and support is compiled in.
1019   settings->setExperimentalWebGLEnabled(prefs.experimental_webgl_enabled);
1020
1021   // Disable GL multisampling if requested on command line.
1022   settings->setOpenGLMultisamplingEnabled(prefs.gl_multisampling_enabled);
1023
1024   // Enable WebGL errors to the JS console if requested.
1025   settings->setWebGLErrorsToConsoleEnabled(
1026       prefs.webgl_errors_to_console_enabled);
1027
1028   // Uses the mock theme engine for scrollbars.
1029   settings->setMockScrollbarsEnabled(prefs.mock_scrollbars_enabled);
1030
1031   // Enable gpu-accelerated 2d canvas if requested on the command line.
1032   settings->setAccelerated2dCanvasEnabled(prefs.accelerated_2d_canvas_enabled);
1033
1034   settings->setMinimumAccelerated2dCanvasSize(
1035       prefs.minimum_accelerated_2d_canvas_size);
1036
1037   // Disable antialiasing for 2d canvas if requested on the command line.
1038   settings->setAntialiased2dCanvasEnabled(
1039       !prefs.antialiased_2d_canvas_disabled);
1040
1041   // Enabled antialiasing of clips for 2d canvas if requested on the command
1042   // line.
1043   settings->setAntialiasedClips2dCanvasEnabled(
1044       prefs.antialiased_clips_2d_canvas_enabled);
1045
1046   // Set MSAA sample count for 2d canvas if requested on the command line (or
1047   // default value if not).
1048   settings->setAccelerated2dCanvasMSAASampleCount(
1049       prefs.accelerated_2d_canvas_msaa_sample_count);
1050
1051   WebRuntimeFeatures::enableTextBlobs(prefs.text_blobs_enabled);
1052
1053   settings->setAsynchronousSpellCheckingEnabled(
1054       prefs.asynchronous_spell_checking_enabled);
1055   settings->setUnifiedTextCheckerEnabled(prefs.unified_textchecker_enabled);
1056
1057   // Tabs to link is not part of the settings. WebCore calls
1058   // ChromeClient::tabsToLinks which is part of the glue code.
1059   web_view->setTabsToLinks(prefs.tabs_to_links);
1060
1061   settings->setAllowDisplayOfInsecureContent(
1062       prefs.allow_displaying_insecure_content);
1063   settings->setAllowRunningOfInsecureContent(
1064       prefs.allow_running_insecure_content);
1065   settings->setDisableReadingFromCanvas(prefs.disable_reading_from_canvas);
1066   settings->setStrictMixedContentChecking(prefs.strict_mixed_content_checking);
1067   settings->setStrictPowerfulFeatureRestrictions(
1068       prefs.strict_powerful_feature_restrictions);
1069   settings->setPasswordEchoEnabled(prefs.password_echo_enabled);
1070   settings->setShouldPrintBackgrounds(prefs.should_print_backgrounds);
1071   settings->setShouldClearDocumentBackground(
1072       prefs.should_clear_document_background);
1073   settings->setEnableScrollAnimator(prefs.enable_scroll_animator);
1074
1075   WebRuntimeFeatures::enableTouch(prefs.touch_enabled);
1076   settings->setMaxTouchPoints(prefs.pointer_events_max_touch_points);
1077   settings->setAvailablePointerTypes(prefs.available_pointer_types);
1078   settings->setPrimaryPointerType(
1079       static_cast<WebSettings::PointerType>(prefs.primary_pointer_type));
1080   settings->setAvailableHoverTypes(prefs.available_hover_types);
1081   settings->setPrimaryHoverType(
1082       static_cast<WebSettings::HoverType>(prefs.primary_hover_type));
1083   settings->setDeviceSupportsTouch(prefs.device_supports_touch);
1084   settings->setDeviceSupportsMouse(prefs.device_supports_mouse);
1085   settings->setEnableTouchAdjustment(prefs.touch_adjustment_enabled);
1086   settings->setMultiTargetTapNotificationEnabled(
1087       switches::IsLinkDisambiguationPopupEnabled());
1088
1089   WebRuntimeFeatures::enableImageColorProfiles(
1090       prefs.image_color_profiles_enabled);
1091   settings->setShouldRespectImageOrientation(
1092       prefs.should_respect_image_orientation);
1093
1094   settings->setUnsafePluginPastingEnabled(false);
1095   settings->setEditingBehavior(
1096       static_cast<WebSettings::EditingBehavior>(prefs.editing_behavior));
1097
1098   settings->setSupportsMultipleWindows(prefs.supports_multiple_windows);
1099
1100   settings->setViewportEnabled(prefs.viewport_enabled);
1101   settings->setLoadWithOverviewMode(prefs.initialize_at_minimum_page_scale);
1102   settings->setViewportMetaEnabled(prefs.viewport_meta_enabled);
1103   settings->setMainFrameResizesAreOrientationChanges(
1104       prefs.main_frame_resizes_are_orientation_changes);
1105
1106   settings->setSmartInsertDeleteEnabled(prefs.smart_insert_delete_enabled);
1107
1108   settings->setSpatialNavigationEnabled(prefs.spatial_navigation_enabled);
1109
1110   settings->setSelectionIncludesAltImageText(true);
1111
1112   settings->setV8CacheOptions(
1113       static_cast<WebSettings::V8CacheOptions>(prefs.v8_cache_options));
1114
1115   settings->setImageAnimationPolicy(
1116       static_cast<WebSettings::ImageAnimationPolicy>(prefs.animation_policy));
1117
1118   // Needs to happen before setIgnoreVIewportTagScaleLimits below.
1119   web_view->setDefaultPageScaleLimits(
1120       prefs.default_minimum_page_scale_factor,
1121       prefs.default_maximum_page_scale_factor);
1122
1123 #if defined(OS_ANDROID)
1124   settings->setAllowCustomScrollbarInMainFrame(false);
1125   settings->setTextAutosizingEnabled(prefs.text_autosizing_enabled);
1126   settings->setAccessibilityFontScaleFactor(prefs.font_scale_factor);
1127   settings->setDeviceScaleAdjustment(prefs.device_scale_adjustment);
1128   settings->setFullscreenSupported(prefs.fullscreen_supported);
1129   web_view->setIgnoreViewportTagScaleLimits(prefs.force_enable_zoom);
1130   settings->setAutoZoomFocusedNodeToLegibleScale(true);
1131   settings->setDoubleTapToZoomEnabled(prefs.double_tap_to_zoom_enabled);
1132   settings->setMediaControlsOverlayPlayButtonEnabled(true);
1133   settings->setMediaPlaybackRequiresUserGesture(
1134       prefs.user_gesture_required_for_media_playback);
1135   settings->setDefaultVideoPosterURL(
1136         base::ASCIIToUTF16(prefs.default_video_poster_url.spec()));
1137   settings->setSupportDeprecatedTargetDensityDPI(
1138       prefs.support_deprecated_target_density_dpi);
1139   settings->setUseLegacyBackgroundSizeShorthandBehavior(
1140       prefs.use_legacy_background_size_shorthand_behavior);
1141   settings->setWideViewportQuirkEnabled(prefs.wide_viewport_quirk);
1142   settings->setUseWideViewport(prefs.use_wide_viewport);
1143   settings->setForceZeroLayoutHeight(prefs.force_zero_layout_height);
1144   settings->setViewportMetaLayoutSizeQuirk(
1145       prefs.viewport_meta_layout_size_quirk);
1146   settings->setViewportMetaMergeContentQuirk(
1147       prefs.viewport_meta_merge_content_quirk);
1148   settings->setViewportMetaNonUserScalableQuirk(
1149       prefs.viewport_meta_non_user_scalable_quirk);
1150   settings->setViewportMetaZeroValuesQuirk(
1151       prefs.viewport_meta_zero_values_quirk);
1152   settings->setClobberUserAgentInitialScaleQuirk(
1153       prefs.clobber_user_agent_initial_scale_quirk);
1154   settings->setIgnoreMainFrameOverflowHiddenQuirk(
1155       prefs.ignore_main_frame_overflow_hidden_quirk);
1156   settings->setReportScreenSizeInPhysicalPixelsQuirk(
1157       prefs.report_screen_size_in_physical_pixels_quirk);
1158
1159   bool record_full_layer =
1160       RenderViewImpl::FromWebView(web_view)
1161           ? RenderViewImpl::FromWebView(web_view)->DoesRecordFullLayer()
1162           : false;
1163   settings->setMainFrameClipsContent(!record_full_layer);
1164
1165   settings->setShrinksViewportContentToFit(true);
1166   settings->setUseMobileViewportStyle(true);
1167 #endif
1168
1169   WebNetworkStateNotifier::setOnLine(prefs.is_online);
1170   WebNetworkStateNotifier::setWebConnectionType(
1171       NetConnectionTypeToWebConnectionType(prefs.connection_type));
1172
1173   settings->setPinchOverlayScrollbarThickness(
1174       prefs.pinch_overlay_scrollbar_thickness);
1175   settings->setUseSolidColorScrollbars(prefs.use_solid_color_scrollbars);
1176
1177   settings->setShowContextMenuOnMouseUp(prefs.context_menu_on_mouse_up);
1178
1179 #if defined(OS_MACOSX)
1180   settings->setDoubleTapToZoomEnabled(true);
1181   web_view->setMaximumLegibleScale(prefs.default_maximum_page_scale_factor);
1182 #endif
1183 }
1184
1185 /*static*/
1186 RenderViewImpl* RenderViewImpl::Create(CompositorDependencies* compositor_deps,
1187                                        const ViewMsg_New_Params& params,
1188                                        bool was_created_by_renderer) {
1189   DCHECK(params.view_id != MSG_ROUTING_NONE);
1190   RenderViewImpl* render_view = NULL;
1191   if (g_create_render_view_impl)
1192     render_view = g_create_render_view_impl(compositor_deps, params);
1193   else
1194     render_view = new RenderViewImpl(compositor_deps, params);
1195
1196   render_view->Initialize(params, was_created_by_renderer);
1197   return render_view;
1198 }
1199
1200 // static
1201 void RenderViewImpl::InstallCreateHook(RenderViewImpl* (
1202     *create_render_view_impl)(CompositorDependencies* compositor_deps,
1203                               const ViewMsg_New_Params&)) {
1204   CHECK(!g_create_render_view_impl);
1205   g_create_render_view_impl = create_render_view_impl;
1206 }
1207
1208 void RenderViewImpl::AddObserver(RenderViewObserver* observer) {
1209   observers_.AddObserver(observer);
1210 }
1211
1212 void RenderViewImpl::RemoveObserver(RenderViewObserver* observer) {
1213   observer->RenderViewGone();
1214   observers_.RemoveObserver(observer);
1215 }
1216
1217 blink::WebView* RenderViewImpl::webview() const {
1218   return static_cast<blink::WebView*>(webwidget());
1219 }
1220
1221 #if defined(ENABLE_PLUGINS)
1222 void RenderViewImpl::PepperInstanceCreated(
1223     PepperPluginInstanceImpl* instance) {
1224   active_pepper_instances_.insert(instance);
1225
1226   RenderFrameImpl* const render_frame = instance->render_frame();
1227   render_frame->Send(
1228       new FrameHostMsg_PepperInstanceCreated(render_frame->GetRoutingID()));
1229 }
1230
1231 void RenderViewImpl::PepperInstanceDeleted(
1232     PepperPluginInstanceImpl* instance) {
1233   active_pepper_instances_.erase(instance);
1234
1235   if (pepper_last_mouse_event_target_ == instance)
1236     pepper_last_mouse_event_target_ = NULL;
1237   if (focused_pepper_plugin_ == instance)
1238     PepperFocusChanged(instance, false);
1239
1240   RenderFrameImpl* const render_frame = instance->render_frame();
1241   if (render_frame)
1242     render_frame->Send(
1243         new FrameHostMsg_PepperInstanceDeleted(render_frame->GetRoutingID()));
1244 }
1245
1246 void RenderViewImpl::PepperFocusChanged(PepperPluginInstanceImpl* instance,
1247                                         bool focused) {
1248   if (focused)
1249     focused_pepper_plugin_ = instance;
1250   else if (focused_pepper_plugin_ == instance)
1251     focused_pepper_plugin_ = NULL;
1252
1253   UpdateTextInputType();
1254   UpdateSelectionBounds();
1255 }
1256
1257 void RenderViewImpl::RegisterPluginDelegate(WebPluginDelegateProxy* delegate) {
1258   plugin_delegates_.insert(delegate);
1259   // If the renderer is visible, set initial visibility and focus state.
1260   if (!is_hidden()) {
1261 #if defined(OS_MACOSX)
1262     delegate->SetContainerVisibility(true);
1263     if (webview() && webview()->isActive())
1264       delegate->SetWindowFocus(true);
1265 #endif
1266   }
1267   // Plugins start assuming the content has focus (so that they work in
1268   // environments where RenderView isn't hosting them), so we always have to
1269   // set the initial state. See webplugin_delegate_impl.h for details.
1270   delegate->SetContentAreaFocus(has_focus());
1271 }
1272
1273 void RenderViewImpl::UnregisterPluginDelegate(
1274     WebPluginDelegateProxy* delegate) {
1275   plugin_delegates_.erase(delegate);
1276 }
1277
1278 #if defined(OS_WIN)
1279 void RenderViewImpl::PluginFocusChanged(bool focused, int plugin_id) {
1280   if (focused)
1281     focused_plugin_id_ = plugin_id;
1282   else
1283     focused_plugin_id_ = -1;
1284 }
1285 #endif
1286
1287 #if defined(OS_MACOSX)
1288 void RenderViewImpl::PluginFocusChanged(bool focused, int plugin_id) {
1289   Send(new ViewHostMsg_PluginFocusChanged(routing_id(), focused, plugin_id));
1290 }
1291
1292 void RenderViewImpl::OnGetRenderedText() {
1293   if (!webview())
1294     return;
1295   // Get rendered text from WebLocalFrame.
1296   // TODO: Currently IPC truncates any data that has a
1297   // size > kMaximumMessageSize. May be split the text into smaller chunks and
1298   // send back using multiple IPC. See http://crbug.com/393444.
1299   static const size_t kMaximumMessageSize = 8 * 1024 * 1024;
1300   std::string text = webview()->mainFrame()->contentAsText(
1301       kMaximumMessageSize).utf8();
1302
1303   Send(new ViewMsg_GetRenderedTextCompleted(routing_id(), text));
1304 }
1305
1306 void RenderViewImpl::StartPluginIme() {
1307   IPC::Message* msg = new ViewHostMsg_StartPluginIme(routing_id());
1308   // This message can be sent during event-handling, and needs to be delivered
1309   // within that context.
1310   msg->set_unblock(true);
1311   Send(msg);
1312 }
1313 #endif  // defined(OS_MACOSX)
1314
1315 #endif  // ENABLE_PLUGINS
1316
1317 void RenderViewImpl::TransferActiveWheelFlingAnimation(
1318     const blink::WebActiveWheelFlingParameters& params) {
1319   if (webview())
1320     webview()->transferActiveWheelFlingAnimation(params);
1321 }
1322
1323 bool RenderViewImpl::HasIMETextFocus() {
1324   return GetTextInputType() != ui::TEXT_INPUT_TYPE_NONE;
1325 }
1326
1327 bool RenderViewImpl::OnMessageReceived(const IPC::Message& message) {
1328   WebFrame* main_frame = webview() ? webview()->mainFrame() : NULL;
1329   if (main_frame && main_frame->isWebLocalFrame())
1330     GetContentClient()->SetActiveURL(main_frame->document().url());
1331
1332   base::ObserverListBase<RenderViewObserver>::Iterator it(&observers_);
1333   RenderViewObserver* observer;
1334   while ((observer = it.GetNext()) != NULL)
1335     if (observer->OnMessageReceived(message))
1336       return true;
1337
1338   bool handled = true;
1339   IPC_BEGIN_MESSAGE_MAP(RenderViewImpl, message)
1340     IPC_MESSAGE_HANDLER(InputMsg_ExecuteEditCommand, OnExecuteEditCommand)
1341     IPC_MESSAGE_HANDLER(InputMsg_MoveCaret, OnMoveCaret)
1342     IPC_MESSAGE_HANDLER(InputMsg_ScrollFocusedEditableNodeIntoRect,
1343                         OnScrollFocusedEditableNodeIntoRect)
1344     IPC_MESSAGE_HANDLER(InputMsg_SetEditCommandsForNextKeyEvent,
1345                         OnSetEditCommandsForNextKeyEvent)
1346     IPC_MESSAGE_HANDLER(ViewMsg_CopyImageAt, OnCopyImageAt)
1347     IPC_MESSAGE_HANDLER(ViewMsg_SaveImageAt, OnSaveImageAt)
1348     IPC_MESSAGE_HANDLER(ViewMsg_Find, OnFind)
1349     IPC_MESSAGE_HANDLER(ViewMsg_StopFinding, OnStopFinding)
1350     IPC_MESSAGE_HANDLER(ViewMsg_ResetPageScale, OnResetPageScale)
1351     IPC_MESSAGE_HANDLER(ViewMsg_Zoom, OnZoom)
1352     IPC_MESSAGE_HANDLER(ViewMsg_SetZoomLevelForLoadingURL,
1353                         OnSetZoomLevelForLoadingURL)
1354     IPC_MESSAGE_HANDLER(ViewMsg_SetZoomLevelForView,
1355                         OnSetZoomLevelForView)
1356     IPC_MESSAGE_HANDLER(ViewMsg_SetPageEncoding, OnSetPageEncoding)
1357     IPC_MESSAGE_HANDLER(ViewMsg_ResetPageEncodingToDefault,
1358                         OnResetPageEncodingToDefault)
1359     IPC_MESSAGE_HANDLER(DragMsg_TargetDragEnter, OnDragTargetDragEnter)
1360     IPC_MESSAGE_HANDLER(DragMsg_TargetDragOver, OnDragTargetDragOver)
1361     IPC_MESSAGE_HANDLER(DragMsg_TargetDragLeave, OnDragTargetDragLeave)
1362     IPC_MESSAGE_HANDLER(DragMsg_TargetDrop, OnDragTargetDrop)
1363     IPC_MESSAGE_HANDLER(DragMsg_SourceEnded, OnDragSourceEnded)
1364     IPC_MESSAGE_HANDLER(DragMsg_SourceSystemDragEnded,
1365                         OnDragSourceSystemDragEnded)
1366     IPC_MESSAGE_HANDLER(ViewMsg_AllowBindings, OnAllowBindings)
1367     IPC_MESSAGE_HANDLER(ViewMsg_SetInitialFocus, OnSetInitialFocus)
1368     IPC_MESSAGE_HANDLER(ViewMsg_UpdateTargetURL_ACK, OnUpdateTargetURLAck)
1369     IPC_MESSAGE_HANDLER(ViewMsg_UpdateWebPreferences, OnUpdateWebPreferences)
1370     IPC_MESSAGE_HANDLER(ViewMsg_EnumerateDirectoryResponse,
1371                         OnEnumerateDirectoryResponse)
1372     IPC_MESSAGE_HANDLER(ViewMsg_RunFileChooserResponse, OnFileChooserResponse)
1373     IPC_MESSAGE_HANDLER(ViewMsg_SuppressDialogsUntilSwapOut,
1374                         OnSuppressDialogsUntilSwapOut)
1375     IPC_MESSAGE_HANDLER(ViewMsg_ClosePage, OnClosePage)
1376     IPC_MESSAGE_HANDLER(ViewMsg_ThemeChanged, OnThemeChanged)
1377     IPC_MESSAGE_HANDLER(ViewMsg_MoveOrResizeStarted, OnMoveOrResizeStarted)
1378     IPC_MESSAGE_HANDLER(ViewMsg_ClearFocusedElement, OnClearFocusedElement)
1379     IPC_MESSAGE_HANDLER(ViewMsg_SetBackgroundOpaque, OnSetBackgroundOpaque)
1380     IPC_MESSAGE_HANDLER(ViewMsg_EnablePreferredSizeChangedMode,
1381                         OnEnablePreferredSizeChangedMode)
1382     IPC_MESSAGE_HANDLER(ViewMsg_EnableAutoResize, OnEnableAutoResize)
1383     IPC_MESSAGE_HANDLER(ViewMsg_DisableAutoResize, OnDisableAutoResize)
1384     IPC_MESSAGE_HANDLER(ViewMsg_DisableScrollbarsForSmallWindows,
1385                         OnDisableScrollbarsForSmallWindows)
1386     IPC_MESSAGE_HANDLER(ViewMsg_SetRendererPrefs, OnSetRendererPrefs)
1387     IPC_MESSAGE_HANDLER(ViewMsg_MediaPlayerActionAt, OnMediaPlayerActionAt)
1388     IPC_MESSAGE_HANDLER(ViewMsg_PluginActionAt, OnPluginActionAt)
1389     IPC_MESSAGE_HANDLER(ViewMsg_SetActive, OnSetActive)
1390     IPC_MESSAGE_HANDLER(ViewMsg_GetAllSavableResourceLinksForCurrentPage,
1391                         OnGetAllSavableResourceLinksForCurrentPage)
1392     IPC_MESSAGE_HANDLER(
1393         ViewMsg_GetSerializedHtmlDataForCurrentPageWithLocalLinks,
1394         OnGetSerializedHtmlDataForCurrentPageWithLocalLinks)
1395     IPC_MESSAGE_HANDLER(ViewMsg_ShowContextMenu, OnShowContextMenu)
1396     // TODO(viettrungluu): Move to a separate message filter.
1397     IPC_MESSAGE_HANDLER(ViewMsg_SetHistoryOffsetAndLength,
1398                         OnSetHistoryOffsetAndLength)
1399     IPC_MESSAGE_HANDLER(ViewMsg_EnableViewSourceMode, OnEnableViewSourceMode)
1400     IPC_MESSAGE_HANDLER(ViewMsg_ReleaseDisambiguationPopupBitmap,
1401                         OnReleaseDisambiguationPopupBitmap)
1402     IPC_MESSAGE_HANDLER(ViewMsg_ForceRedraw, OnForceRedraw)
1403     IPC_MESSAGE_HANDLER(ViewMsg_SelectWordAroundCaret, OnSelectWordAroundCaret)
1404 #if defined(OS_ANDROID)
1405     IPC_MESSAGE_HANDLER(InputMsg_ActivateNearestFindResult,
1406                         OnActivateNearestFindResult)
1407     IPC_MESSAGE_HANDLER(ViewMsg_FindMatchRects, OnFindMatchRects)
1408     IPC_MESSAGE_HANDLER(ViewMsg_UpdateTopControlsState,
1409                         OnUpdateTopControlsState)
1410     IPC_MESSAGE_HANDLER(ViewMsg_ExtractSmartClipData, OnExtractSmartClipData)
1411 #elif defined(OS_MACOSX)
1412     IPC_MESSAGE_HANDLER(ViewMsg_GetRenderedText,
1413                         OnGetRenderedText)
1414     IPC_MESSAGE_HANDLER(ViewMsg_PluginImeCompositionCompleted,
1415                         OnPluginImeCompositionCompleted)
1416     IPC_MESSAGE_HANDLER(ViewMsg_Close, OnClose)
1417     IPC_MESSAGE_HANDLER(ViewMsg_SetInLiveResize, OnSetInLiveResize)
1418     IPC_MESSAGE_HANDLER(ViewMsg_SetWindowVisibility, OnSetWindowVisibility)
1419     IPC_MESSAGE_HANDLER(ViewMsg_WindowFrameChanged, OnWindowFrameChanged)
1420 #endif
1421     // Adding a new message? Add platform independent ones first, then put the
1422     // platform specific ones at the end.
1423
1424     // Have the super handle all other messages.
1425     IPC_MESSAGE_UNHANDLED(handled = RenderWidget::OnMessageReceived(message))
1426   IPC_END_MESSAGE_MAP()
1427
1428   return handled;
1429 }
1430
1431 void RenderViewImpl::OnSelectWordAroundCaret() {
1432   if (!webview())
1433     return;
1434
1435   handling_input_event_ = true;
1436   webview()->focusedFrame()->selectWordAroundCaret();
1437   handling_input_event_ = false;
1438 }
1439
1440 void RenderViewImpl::OnCopyImageAt(int x, int y) {
1441   webview()->copyImageAt(WebPoint(x, y));
1442 }
1443
1444 void RenderViewImpl::OnSaveImageAt(int x, int y) {
1445   webview()->saveImageAt(WebPoint(x, y));
1446 }
1447
1448 void RenderViewImpl::OnUpdateTargetURLAck() {
1449   // Check if there is a targeturl waiting to be sent.
1450   if (target_url_status_ == TARGET_PENDING)
1451     Send(new ViewHostMsg_UpdateTargetURL(routing_id_, pending_target_url_));
1452
1453   target_url_status_ = TARGET_NONE;
1454 }
1455
1456 void RenderViewImpl::OnExecuteEditCommand(const std::string& name,
1457     const std::string& value) {
1458   if (!webview() || !webview()->focusedFrame())
1459     return;
1460
1461   webview()->focusedFrame()->executeCommand(
1462       WebString::fromUTF8(name), WebString::fromUTF8(value));
1463 }
1464
1465 void RenderViewImpl::OnMoveCaret(const gfx::Point& point) {
1466   if (!webview())
1467     return;
1468
1469   Send(new InputHostMsg_MoveCaret_ACK(routing_id_));
1470
1471   webview()->focusedFrame()->moveCaretSelection(point);
1472 }
1473
1474 void RenderViewImpl::OnScrollFocusedEditableNodeIntoRect(
1475     const gfx::Rect& rect) {
1476   if (has_scrolled_focused_editable_node_into_rect_ &&
1477       rect == rect_for_scrolled_focused_editable_node_) {
1478     FocusChangeComplete();
1479     return;
1480   }
1481
1482   blink::WebElement element = GetFocusedElement();
1483   bool will_animate = false;
1484   if (!element.isNull() && IsEditableNode(element)) {
1485     rect_for_scrolled_focused_editable_node_ = rect;
1486     has_scrolled_focused_editable_node_into_rect_ = true;
1487     will_animate = webview()->scrollFocusedNodeIntoRect(rect);
1488   }
1489
1490   if (!will_animate)
1491     FocusChangeComplete();
1492 }
1493
1494 void RenderViewImpl::OnSetEditCommandsForNextKeyEvent(
1495     const EditCommands& edit_commands) {
1496   edit_commands_ = edit_commands;
1497 }
1498
1499 void RenderViewImpl::OnSetHistoryOffsetAndLength(int history_offset,
1500                                                  int history_length) {
1501   DCHECK_GE(history_offset, -1);
1502   DCHECK_GE(history_length, 0);
1503
1504   history_list_offset_ = history_offset;
1505   history_list_length_ = history_length;
1506 }
1507
1508 void RenderViewImpl::OnSetInitialFocus(bool reverse) {
1509   if (!webview())
1510     return;
1511   webview()->setInitialFocus(reverse);
1512 }
1513
1514 #if defined(OS_MACOSX)
1515 void RenderViewImpl::OnSetInLiveResize(bool in_live_resize) {
1516   if (!webview())
1517     return;
1518   if (in_live_resize)
1519     webview()->willStartLiveResize();
1520   else
1521     webview()->willEndLiveResize();
1522 }
1523 #endif
1524
1525 ///////////////////////////////////////////////////////////////////////////////
1526
1527 void RenderViewImpl::SendUpdateState() {
1528   HistoryEntry* entry = history_controller_->GetCurrentEntry();
1529   if (!entry)
1530     return;
1531
1532   // Don't send state updates for kSwappedOutURL.
1533   if (entry->root().urlString() == WebString::fromUTF8(kSwappedOutURL))
1534     return;
1535
1536   Send(new ViewHostMsg_UpdateState(
1537       routing_id_, page_id_, HistoryEntryToPageState(entry)));
1538 }
1539
1540 void RenderViewImpl::ApplyWebPreferencesInternal(
1541     const WebPreferences& prefs,
1542     blink::WebView* web_view,
1543     CompositorDependencies* compositor_deps) {
1544   ApplyWebPreferences(prefs, web_view);
1545 #if defined(OS_MACOSX) && !defined(OS_IOS)
1546   DCHECK(compositor_deps);
1547   bool is_elastic_overscroll_enabled =
1548       compositor_deps->IsElasticOverscrollEnabled();
1549   web_view->settings()->setReportWheelOverscroll(is_elastic_overscroll_enabled);
1550 #endif
1551 }
1552
1553 bool RenderViewImpl::SendAndRunNestedMessageLoop(IPC::SyncMessage* message) {
1554   // Before WebKit asks us to show an alert (etc.), it takes care of doing the
1555   // equivalent of WebView::willEnterModalLoop.  In the case of showModalDialog
1556   // it is particularly important that we do not call willEnterModalLoop as
1557   // that would defer resource loads for the dialog itself.
1558   if (RenderThreadImpl::current())  // Will be NULL during unit tests.
1559     RenderThreadImpl::current()->DoNotNotifyWebKitOfModalLoop();
1560
1561   message->EnableMessagePumping();  // Runs a nested message loop.
1562   return Send(message);
1563 }
1564
1565 void RenderViewImpl::OnForceRedraw(int id) {
1566   ui::LatencyInfo latency_info;
1567   if (id) {
1568     latency_info.AddLatencyNumber(ui::WINDOW_SNAPSHOT_FRAME_NUMBER_COMPONENT,
1569                                   0,
1570                                   id);
1571   }
1572   scoped_ptr<cc::SwapPromiseMonitor> latency_info_swap_promise_monitor;
1573   if (RenderWidgetCompositor* rwc = compositor()) {
1574     latency_info_swap_promise_monitor =
1575         rwc->CreateLatencyInfoSwapPromiseMonitor(&latency_info).Pass();
1576   }
1577   ScheduleCompositeWithForcedRedraw();
1578 }
1579
1580 // blink::WebViewClient ------------------------------------------------------
1581
1582 WebView* RenderViewImpl::createView(WebLocalFrame* creator,
1583                                     const WebURLRequest& request,
1584                                     const WebWindowFeatures& features,
1585                                     const WebString& frame_name,
1586                                     WebNavigationPolicy policy,
1587                                     bool suppress_opener) {
1588   ViewHostMsg_CreateWindow_Params params;
1589   params.opener_id = routing_id_;
1590   params.user_gesture = WebUserGestureIndicator::isProcessingUserGesture();
1591   if (GetContentClient()->renderer()->AllowPopup())
1592     params.user_gesture = true;
1593   params.window_container_type = WindowFeaturesToContainerType(features);
1594   params.session_storage_namespace_id = session_storage_namespace_id_;
1595   if (frame_name != "_blank")
1596     params.frame_name = base::UTF16ToUTF8(base::StringPiece16(frame_name));
1597   params.opener_render_frame_id =
1598       RenderFrameImpl::FromWebFrame(creator)->GetRoutingID();
1599   params.opener_url = creator->document().url();
1600
1601   // The browser process uses the top frame's URL for a content settings check
1602   // to determine whether the popup is allowed.  If the top frame is remote,
1603   // its URL is not available, so use its replicated origin instead.
1604   //
1605   // TODO(alexmos): This works fine for regular origins but may break path
1606   // matching for file URLs with OOP subframes that open popups.  This should
1607   // be fixed by either moving this lookup to the browser process or removing
1608   // path-based matching for file URLs from content settings.  See
1609   // https://crbug.com/466297.
1610   if (creator->top()->isWebLocalFrame()) {
1611     params.opener_top_level_frame_url = creator->top()->document().url();
1612   } else {
1613     params.opener_top_level_frame_url =
1614         GURL(creator->top()->securityOrigin().toString());
1615   }
1616
1617   GURL security_url(creator->document().securityOrigin().toString());
1618   if (!security_url.is_valid())
1619     security_url = GURL();
1620   params.opener_security_origin = security_url;
1621   params.opener_suppressed = suppress_opener;
1622   params.disposition = NavigationPolicyToDisposition(policy);
1623   if (!request.isNull()) {
1624     params.target_url = request.url();
1625     params.referrer = GetReferrerFromRequest(creator, request);
1626   }
1627   params.features = features;
1628
1629   for (size_t i = 0; i < features.additionalFeatures.size(); ++i)
1630     params.additional_features.push_back(features.additionalFeatures[i]);
1631
1632   int32 routing_id = MSG_ROUTING_NONE;
1633   int32 main_frame_routing_id = MSG_ROUTING_NONE;
1634   int32 surface_id = 0;
1635   int64 cloned_session_storage_namespace_id = 0;
1636
1637   RenderThread::Get()->Send(new ViewHostMsg_CreateWindow(
1638       params, &routing_id, &main_frame_routing_id, &surface_id,
1639       &cloned_session_storage_namespace_id));
1640   if (routing_id == MSG_ROUTING_NONE)
1641     return NULL;
1642
1643   WebUserGestureIndicator::consumeUserGesture();
1644
1645   // While this view may be a background extension page, it can spawn a visible
1646   // render view. So we just assume that the new one is not another background
1647   // page instead of passing on our own value.
1648   // TODO(vangelis): Can we tell if the new view will be a background page?
1649   bool never_visible = false;
1650
1651   ViewMsg_Resize_Params initial_size = ViewMsg_Resize_Params();
1652   initial_size.screen_info = screen_info_;
1653
1654   // The initial hidden state for the RenderViewImpl here has to match what the
1655   // browser will eventually decide for the given disposition. Since we have to
1656   // return from this call synchronously, we just have to make our best guess
1657   // and rely on the browser sending a WasHidden / WasShown message if it
1658   // disagrees.
1659   ViewMsg_New_Params view_params;
1660
1661   RenderFrameImpl* creator_frame = RenderFrameImpl::FromWebFrame(creator);
1662   view_params.opener_frame_route_id = creator_frame->GetRoutingID();
1663   DCHECK_EQ(routing_id_, creator_frame->render_view()->GetRoutingID());
1664
1665   view_params.window_was_created_with_opener = true;
1666   view_params.renderer_preferences = renderer_preferences_;
1667   view_params.web_preferences = webkit_preferences_;
1668   view_params.view_id = routing_id;
1669   view_params.main_frame_routing_id = main_frame_routing_id;
1670   view_params.surface_id = surface_id;
1671   view_params.session_storage_namespace_id =
1672       cloned_session_storage_namespace_id;
1673   view_params.swapped_out = false;
1674   // WebCore will take care of setting the correct name.
1675   view_params.replicated_frame_state = FrameReplicationState();
1676   view_params.proxy_routing_id = MSG_ROUTING_NONE;
1677   view_params.hidden = (params.disposition == NEW_BACKGROUND_TAB);
1678   view_params.never_visible = never_visible;
1679   view_params.next_page_id = 1;
1680   view_params.initial_size = initial_size;
1681   view_params.enable_auto_resize = false;
1682   view_params.min_size = gfx::Size();
1683   view_params.max_size = gfx::Size();
1684
1685   RenderViewImpl* view =
1686       RenderViewImpl::Create(compositor_deps_, view_params, true);
1687   view->opened_by_user_gesture_ = params.user_gesture;
1688
1689   // Record whether the creator frame is trying to suppress the opener field.
1690   view->opener_suppressed_ = params.opener_suppressed;
1691
1692   return view->webview();
1693 }
1694
1695 WebWidget* RenderViewImpl::createPopupMenu(blink::WebPopupType popup_type) {
1696   RenderWidget* widget = RenderWidget::Create(routing_id_, compositor_deps_,
1697                                               popup_type, screen_info_);
1698   if (!widget)
1699     return NULL;
1700   if (screen_metrics_emulator_) {
1701     widget->SetPopupOriginAdjustmentsForEmulation(
1702         screen_metrics_emulator_.get());
1703   }
1704   return widget->webwidget();
1705 }
1706
1707 WebStorageNamespace* RenderViewImpl::createSessionStorageNamespace() {
1708   CHECK(session_storage_namespace_id_ != kInvalidSessionStorageNamespaceId);
1709   return new WebStorageNamespaceImpl(session_storage_namespace_id_);
1710 }
1711
1712 void RenderViewImpl::printPage(WebLocalFrame* frame) {
1713   FOR_EACH_OBSERVER(RenderViewObserver, observers_,
1714                     PrintPage(frame, handling_input_event_));
1715 }
1716
1717 void RenderViewImpl::saveImageFromDataURL(const blink::WebString& data_url) {
1718   // Note: We should basically send GURL but we use size-limited string instead
1719   // in order to send a larger data url to save a image for <canvas> or <img>.
1720   if (data_url.length() < kMaxLengthOfDataURLString)
1721     Send(new ViewHostMsg_SaveImageFromDataURL(routing_id_, data_url.utf8()));
1722 }
1723
1724 bool RenderViewImpl::enumerateChosenDirectory(
1725     const WebString& path,
1726     WebFileChooserCompletion* chooser_completion) {
1727   int id = enumeration_completion_id_++;
1728   enumeration_completions_[id] = chooser_completion;
1729   return Send(new ViewHostMsg_EnumerateDirectory(
1730       routing_id_,
1731       id,
1732       base::FilePath::FromUTF16Unsafe(path)));
1733 }
1734
1735 void RenderViewImpl::FrameDidStartLoading(WebFrame* frame) {
1736   DCHECK_GE(frames_in_progress_, 0);
1737   if (frames_in_progress_ == 0)
1738     FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidStartLoading());
1739   frames_in_progress_++;
1740 }
1741
1742 void RenderViewImpl::FrameDidStopLoading(WebFrame* frame) {
1743   // TODO(japhet): This should be a DCHECK, but the pdf plugin sometimes
1744   // calls DidStopLoading() without a matching DidStartLoading().
1745   if (frames_in_progress_ == 0)
1746     return;
1747   frames_in_progress_--;
1748   if (frames_in_progress_ == 0) {
1749     DidStopLoadingIcons();
1750     FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidStopLoading());
1751   }
1752 }
1753
1754 void RenderViewImpl::didCancelCompositionOnSelectionChange() {
1755   Send(new InputHostMsg_ImeCancelComposition(routing_id()));
1756 }
1757
1758 bool RenderViewImpl::handleCurrentKeyboardEvent() {
1759   if (edit_commands_.empty())
1760     return false;
1761
1762   WebFrame* frame = webview()->focusedFrame();
1763   if (!frame)
1764     return false;
1765
1766   EditCommands::iterator it = edit_commands_.begin();
1767   EditCommands::iterator end = edit_commands_.end();
1768
1769   bool did_execute_command = false;
1770   for (; it != end; ++it) {
1771     // In gtk and cocoa, it's possible to bind multiple edit commands to one
1772     // key (but it's the exception). Once one edit command is not executed, it
1773     // seems safest to not execute the rest.
1774     if (!frame->executeCommand(WebString::fromUTF8(it->name),
1775                                WebString::fromUTF8(it->value),
1776                                GetFocusedElement()))
1777       break;
1778     did_execute_command = true;
1779   }
1780
1781   return did_execute_command;
1782 }
1783
1784 bool RenderViewImpl::runFileChooser(
1785     const blink::WebFileChooserParams& params,
1786     WebFileChooserCompletion* chooser_completion) {
1787   // Do not open the file dialog in a hidden RenderView.
1788   if (is_hidden())
1789     return false;
1790   FileChooserParams ipc_params;
1791   if (params.directory)
1792     ipc_params.mode = FileChooserParams::UploadFolder;
1793   else if (params.multiSelect)
1794     ipc_params.mode = FileChooserParams::OpenMultiple;
1795   else if (params.saveAs)
1796     ipc_params.mode = FileChooserParams::Save;
1797   else
1798     ipc_params.mode = FileChooserParams::Open;
1799   ipc_params.title = params.title;
1800   ipc_params.default_file_name =
1801       base::FilePath::FromUTF16Unsafe(params.initialValue).BaseName();
1802   ipc_params.accept_types.reserve(params.acceptTypes.size());
1803   for (size_t i = 0; i < params.acceptTypes.size(); ++i)
1804     ipc_params.accept_types.push_back(params.acceptTypes[i]);
1805   ipc_params.need_local_path = params.needLocalPath;
1806 #if defined(OS_ANDROID)
1807   ipc_params.capture = params.useMediaCapture;
1808 #endif
1809
1810   return ScheduleFileChooser(ipc_params, chooser_completion);
1811 }
1812
1813 void RenderViewImpl::SetValidationMessageDirection(
1814     base::string16* wrapped_main_text,
1815     blink::WebTextDirection main_text_hint,
1816     base::string16* wrapped_sub_text,
1817     blink::WebTextDirection sub_text_hint) {
1818   if (main_text_hint == blink::WebTextDirectionLeftToRight) {
1819     *wrapped_main_text =
1820         base::i18n::GetDisplayStringInLTRDirectionality(*wrapped_main_text);
1821   } else if (main_text_hint == blink::WebTextDirectionRightToLeft &&
1822              !base::i18n::IsRTL()) {
1823     base::i18n::WrapStringWithRTLFormatting(wrapped_main_text);
1824   }
1825
1826   if (!wrapped_sub_text->empty()) {
1827     if (sub_text_hint == blink::WebTextDirectionLeftToRight) {
1828       *wrapped_sub_text =
1829           base::i18n::GetDisplayStringInLTRDirectionality(*wrapped_sub_text);
1830     } else if (sub_text_hint == blink::WebTextDirectionRightToLeft) {
1831       base::i18n::WrapStringWithRTLFormatting(wrapped_sub_text);
1832     }
1833   }
1834 }
1835
1836 void RenderViewImpl::showValidationMessage(
1837     const blink::WebRect& anchor_in_root_view,
1838     const blink::WebString& main_text,
1839     blink::WebTextDirection main_text_hint,
1840     const blink::WebString& sub_text,
1841     blink::WebTextDirection sub_text_hint) {
1842   base::string16 wrapped_main_text = main_text;
1843   base::string16 wrapped_sub_text = sub_text;
1844
1845   SetValidationMessageDirection(
1846       &wrapped_main_text, main_text_hint, &wrapped_sub_text, sub_text_hint);
1847
1848   Send(new ViewHostMsg_ShowValidationMessage(
1849       routing_id(), AdjustValidationMessageAnchor(anchor_in_root_view),
1850       wrapped_main_text, wrapped_sub_text));
1851 }
1852
1853 void RenderViewImpl::hideValidationMessage() {
1854   Send(new ViewHostMsg_HideValidationMessage(routing_id()));
1855 }
1856
1857 void RenderViewImpl::moveValidationMessage(
1858     const blink::WebRect& anchor_in_root_view) {
1859   Send(new ViewHostMsg_MoveValidationMessage(
1860       routing_id(), AdjustValidationMessageAnchor(anchor_in_root_view)));
1861 }
1862
1863 void RenderViewImpl::setStatusText(const WebString& text) {
1864 }
1865
1866 void RenderViewImpl::UpdateTargetURL(const GURL& url,
1867                                      const GURL& fallback_url) {
1868   GURL latest_url = url.is_empty() ? fallback_url : url;
1869   if (latest_url == target_url_)
1870     return;
1871
1872   // Tell the browser to display a destination link.
1873   if (target_url_status_ == TARGET_INFLIGHT ||
1874       target_url_status_ == TARGET_PENDING) {
1875     // If we have a request in-flight, save the URL to be sent when we
1876     // receive an ACK to the in-flight request. We can happily overwrite
1877     // any existing pending sends.
1878     pending_target_url_ = latest_url;
1879     target_url_status_ = TARGET_PENDING;
1880   } else {
1881     // URLs larger than |MaxURLChars()| cannot be sent through IPC -
1882     // see |ParamTraits<GURL>|.
1883     if (latest_url.possibly_invalid_spec().size() > GetMaxURLChars())
1884       latest_url = GURL();
1885     Send(new ViewHostMsg_UpdateTargetURL(routing_id_, latest_url));
1886     target_url_ = latest_url;
1887     target_url_status_ = TARGET_INFLIGHT;
1888   }
1889 }
1890
1891 gfx::RectF RenderViewImpl::ClientRectToPhysicalWindowRect(
1892     const gfx::RectF& rect) const {
1893   gfx::RectF window_rect = rect;
1894   window_rect.Scale(device_scale_factor_ * webview()->pageScaleFactor());
1895   return window_rect;
1896 }
1897
1898 void RenderViewImpl::StartNavStateSyncTimerIfNecessary() {
1899   int delay;
1900   if (send_content_state_immediately_)
1901     delay = 0;
1902   else if (is_hidden())
1903     delay = kDelaySecondsForContentStateSyncHidden;
1904   else
1905     delay = kDelaySecondsForContentStateSync;
1906
1907   if (nav_state_sync_timer_.IsRunning()) {
1908     // The timer is already running. If the delay of the timer maches the amount
1909     // we want to delay by, then return. Otherwise stop the timer so that it
1910     // gets started with the right delay.
1911     if (nav_state_sync_timer_.GetCurrentDelay().InSeconds() == delay)
1912       return;
1913     nav_state_sync_timer_.Stop();
1914   }
1915
1916   nav_state_sync_timer_.Start(FROM_HERE, TimeDelta::FromSeconds(delay), this,
1917                               &RenderViewImpl::SendUpdateState);
1918 }
1919
1920 void RenderViewImpl::setMouseOverURL(const WebURL& url) {
1921   mouse_over_url_ = GURL(url);
1922   UpdateTargetURL(mouse_over_url_, focus_url_);
1923 }
1924
1925 void RenderViewImpl::setKeyboardFocusURL(const WebURL& url) {
1926   focus_url_ = GURL(url);
1927   UpdateTargetURL(focus_url_, mouse_over_url_);
1928 }
1929
1930 void RenderViewImpl::startDragging(WebLocalFrame* frame,
1931                                    const WebDragData& data,
1932                                    WebDragOperationsMask mask,
1933                                    const WebImage& image,
1934                                    const WebPoint& webImageOffset) {
1935   DropData drop_data(DropDataBuilder::Build(data));
1936   drop_data.referrer_policy = frame->document().referrerPolicy();
1937   gfx::Vector2d imageOffset(webImageOffset.x, webImageOffset.y);
1938   Send(new DragHostMsg_StartDragging(routing_id_,
1939                                      drop_data,
1940                                      mask,
1941                                      image.getSkBitmap(),
1942                                      imageOffset,
1943                                      possible_drag_event_info_));
1944 }
1945
1946 bool RenderViewImpl::acceptsLoadDrops() {
1947   return renderer_preferences_.can_accept_load_drops;
1948 }
1949
1950 void RenderViewImpl::focusNext() {
1951   Send(new ViewHostMsg_TakeFocus(routing_id_, false));
1952 }
1953
1954 void RenderViewImpl::focusPrevious() {
1955   Send(new ViewHostMsg_TakeFocus(routing_id_, true));
1956 }
1957
1958 void RenderViewImpl::focusedNodeChanged(const WebNode& fromNode,
1959                                         const WebNode& toNode) {
1960   has_scrolled_focused_editable_node_into_rect_ = false;
1961
1962   gfx::Rect node_bounds;
1963   if (!toNode.isNull() && toNode.isElementNode()) {
1964     WebNode web_node = const_cast<WebNode&>(toNode);
1965     node_bounds = gfx::Rect(web_node.to<WebElement>().boundsInViewportSpace());
1966   }
1967   Send(new ViewHostMsg_FocusedNodeChanged(routing_id_, IsEditableNode(toNode),
1968                                           node_bounds));
1969
1970   // TODO(estade): remove.
1971   FOR_EACH_OBSERVER(RenderViewObserver, observers_, FocusedNodeChanged(toNode));
1972
1973   RenderFrameImpl* previous_frame = nullptr;
1974   if (!fromNode.isNull())
1975     previous_frame = RenderFrameImpl::FromWebFrame(fromNode.document().frame());
1976   RenderFrameImpl* new_frame = nullptr;
1977   if (!toNode.isNull())
1978     new_frame = RenderFrameImpl::FromWebFrame(toNode.document().frame());
1979
1980   if (previous_frame && previous_frame != new_frame)
1981     previous_frame->FocusedNodeChanged(WebNode());
1982   if (new_frame)
1983     new_frame->FocusedNodeChanged(toNode);
1984
1985   // TODO(dmazzoni): remove once there's a separate a11y tree per frame.
1986   GetMainRenderFrame()->FocusedNodeChangedForAccessibility(toNode);
1987 }
1988
1989 void RenderViewImpl::didUpdateLayout() {
1990   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidUpdateLayout());
1991
1992   // We don't always want to set up a timer, only if we've been put in that
1993   // mode by getting a |ViewMsg_EnablePreferredSizeChangedMode|
1994   // message.
1995   if (!send_preferred_size_changes_ || !webview())
1996     return;
1997
1998   if (check_preferred_size_timer_.IsRunning())
1999     return;
2000   check_preferred_size_timer_.Start(FROM_HERE,
2001                                     TimeDelta::FromMilliseconds(0), this,
2002                                     &RenderViewImpl::CheckPreferredSize);
2003 }
2004
2005 void RenderViewImpl::navigateBackForwardSoon(int offset) {
2006   Send(new ViewHostMsg_GoToEntryAtOffset(routing_id_, offset));
2007 }
2008
2009 int RenderViewImpl::historyBackListCount() {
2010   return history_list_offset_ < 0 ? 0 : history_list_offset_;
2011 }
2012
2013 int RenderViewImpl::historyForwardListCount() {
2014   return history_list_length_ - historyBackListCount() - 1;
2015 }
2016
2017 // blink::WebWidgetClient ----------------------------------------------------
2018
2019 void RenderViewImpl::didFocus() {
2020   // TODO(jcivelli): when https://bugs.webkit.org/show_bug.cgi?id=33389 is fixed
2021   //                 we won't have to test for user gesture anymore and we can
2022   //                 move that code back to render_widget.cc
2023   if (WebUserGestureIndicator::isProcessingUserGesture() &&
2024       !RenderThreadImpl::current()->layout_test_mode()) {
2025     Send(new ViewHostMsg_Focus(routing_id_));
2026   }
2027 }
2028
2029 void RenderViewImpl::didBlur() {
2030   // TODO(jcivelli): see TODO above in didFocus().
2031   if (WebUserGestureIndicator::isProcessingUserGesture() &&
2032       !RenderThreadImpl::current()->layout_test_mode()) {
2033     Send(new ViewHostMsg_Blur(routing_id_));
2034   }
2035 }
2036
2037 // We are supposed to get a single call to Show for a newly created RenderView
2038 // that was created via RenderViewImpl::CreateWebView.  So, we wait until this
2039 // point to dispatch the ShowView message.
2040 //
2041 // This method provides us with the information about how to display the newly
2042 // created RenderView (i.e., as a blocked popup or as a new tab).
2043 //
2044 void RenderViewImpl::show(WebNavigationPolicy policy) {
2045   if (did_show_) {
2046     // When supports_multiple_windows is disabled, popups are reusing
2047     // the same view. In some scenarios, this makes WebKit to call show() twice.
2048     if (webkit_preferences_.supports_multiple_windows)
2049       NOTREACHED() << "received extraneous Show call";
2050     return;
2051   }
2052   did_show_ = true;
2053
2054   DCHECK(opener_id_ != MSG_ROUTING_NONE);
2055
2056   // NOTE: initial_rect_ may still have its default values at this point, but
2057   // that's okay.  It'll be ignored if disposition is not NEW_POPUP, or the
2058   // browser process will impose a default position otherwise.
2059   Send(new ViewHostMsg_ShowView(opener_id_, routing_id_,
2060       NavigationPolicyToDisposition(policy), initial_rect_,
2061       opened_by_user_gesture_));
2062   SetPendingWindowRect(initial_rect_);
2063 }
2064
2065 bool RenderViewImpl::requestPointerLock() {
2066   return mouse_lock_dispatcher_->LockMouse(webwidget_mouse_lock_target_.get());
2067 }
2068
2069 void RenderViewImpl::requestPointerUnlock() {
2070   mouse_lock_dispatcher_->UnlockMouse(webwidget_mouse_lock_target_.get());
2071 }
2072
2073 bool RenderViewImpl::isPointerLocked() {
2074   return mouse_lock_dispatcher_->IsMouseLockedTo(
2075       webwidget_mouse_lock_target_.get());
2076 }
2077
2078 void RenderViewImpl::onMouseDown(const WebNode& mouse_down_node) {
2079   FOR_EACH_OBSERVER(
2080       RenderViewObserver, observers_, OnMouseDown(mouse_down_node));
2081 }
2082
2083 void RenderViewImpl::didHandleGestureEvent(
2084     const WebGestureEvent& event,
2085     bool event_cancelled) {
2086   RenderWidget::didHandleGestureEvent(event, event_cancelled);
2087
2088   if (!event_cancelled) {
2089     FOR_EACH_OBSERVER(
2090         RenderViewObserver, observers_, DidHandleGestureEvent(event));
2091   }
2092
2093   // TODO(ananta): Piggyback off existing IPCs to communicate this information,
2094   // crbug/420130.
2095 #if defined(OS_WIN)
2096   if (event.type != blink::WebGestureEvent::GestureTap)
2097     return;
2098
2099   // TODO(estade): hit test the event against focused node to make sure
2100   // the tap actually hit the focused node.
2101   blink::WebTextInputType text_input_type =
2102       GetWebView()->textInputInfo().type;
2103
2104   Send(new ViewHostMsg_FocusedNodeTouched(
2105       routing_id(), text_input_type != blink::WebTextInputTypeNone));
2106 #endif
2107 }
2108
2109 void RenderViewImpl::initializeLayerTreeView() {
2110   RenderWidget::initializeLayerTreeView();
2111   RenderWidgetCompositor* rwc = compositor();
2112   if (!rwc)
2113     return;
2114
2115   bool use_threaded_event_handling = true;
2116 #if defined(OS_MACOSX) && !defined(OS_IOS)
2117   // Disable threaded event handling if content is not handling the elastic
2118   // overscroll effect. This includes the cases where the elastic overscroll
2119   // effect is being handled by Blink (because of command line flags) and older
2120   // operating system versions which do not have an elastic overscroll effect
2121   // (SnowLeopard, which has Aqua scrollbars which need synchronous updates).
2122   use_threaded_event_handling = compositor_deps_->IsElasticOverscrollEnabled();
2123 #endif
2124   if (use_threaded_event_handling) {
2125     RenderThreadImpl* render_thread = RenderThreadImpl::current();
2126     // render_thread may be NULL in tests.
2127     InputHandlerManager* input_handler_manager =
2128         render_thread ? render_thread->input_handler_manager() : NULL;
2129     if (input_handler_manager) {
2130       input_handler_manager->AddInputHandler(
2131           routing_id_, rwc->GetInputHandler(), AsWeakPtr());
2132     }
2133   }
2134 }
2135
2136 // blink::WebFrameClient -----------------------------------------------------
2137
2138 void RenderViewImpl::Repaint(const gfx::Size& size) {
2139   OnRepaint(size);
2140 }
2141
2142 void RenderViewImpl::SetEditCommandForNextKeyEvent(const std::string& name,
2143                                                    const std::string& value) {
2144   EditCommands edit_commands;
2145   edit_commands.push_back(EditCommand(name, value));
2146   OnSetEditCommandsForNextKeyEvent(edit_commands);
2147 }
2148
2149 void RenderViewImpl::ClearEditCommands() {
2150   edit_commands_.clear();
2151 }
2152
2153 SSLStatus RenderViewImpl::GetSSLStatusOfFrame(blink::WebFrame* frame) const {
2154   std::string security_info;
2155   if (frame && frame->dataSource())
2156     security_info = frame->dataSource()->response().securityInfo();
2157
2158   SSLStatus result;
2159   CHECK(DeserializeSecurityInfo(security_info, &result));
2160   return result;
2161 }
2162
2163 const std::string& RenderViewImpl::GetAcceptLanguages() const {
2164   return renderer_preferences_.accept_languages;
2165 }
2166
2167 void RenderViewImpl::didChangeIcon(WebLocalFrame* frame,
2168                                    WebIconURL::Type icon_type) {
2169   if (frame->parent())
2170     return;
2171
2172   WebVector<WebIconURL> icon_urls = frame->iconURLs(icon_type);
2173   std::vector<FaviconURL> urls;
2174   for (size_t i = 0; i < icon_urls.size(); i++) {
2175     std::vector<gfx::Size> sizes;
2176     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
2177     urls.push_back(FaviconURL(
2178         icon_urls[i].iconURL(), ToFaviconType(icon_urls[i].iconType()), sizes));
2179   }
2180   SendUpdateFaviconURL(urls);
2181 }
2182
2183 void RenderViewImpl::didUpdateCurrentHistoryItem(WebLocalFrame* frame) {
2184   StartNavStateSyncTimerIfNecessary();
2185 }
2186
2187 void RenderViewImpl::CheckPreferredSize() {
2188   // We don't always want to send the change messages over IPC, only if we've
2189   // been put in that mode by getting a |ViewMsg_EnablePreferredSizeChangedMode|
2190   // message.
2191   if (!send_preferred_size_changes_ || !webview())
2192     return;
2193
2194   gfx::Size size = webview()->contentsPreferredMinimumSize();
2195   if (size == preferred_size_)
2196     return;
2197
2198   preferred_size_ = size;
2199   Send(new ViewHostMsg_DidContentsPreferredSizeChange(routing_id_,
2200                                                       preferred_size_));
2201 }
2202
2203 void RenderViewImpl::didChangeScrollOffset(WebLocalFrame* frame) {
2204   StartNavStateSyncTimerIfNecessary();
2205 }
2206
2207 void RenderViewImpl::SendFindReply(int request_id,
2208                                    int match_count,
2209                                    int ordinal,
2210                                    const WebRect& selection_rect,
2211                                    bool final_status_update) {
2212   Send(new ViewHostMsg_Find_Reply(routing_id_,
2213                                   request_id,
2214                                   match_count,
2215                                   selection_rect,
2216                                   ordinal,
2217                                   final_status_update));
2218 }
2219
2220 blink::WebString RenderViewImpl::acceptLanguages() {
2221   return WebString::fromUTF8(renderer_preferences_.accept_languages);
2222 }
2223
2224 // blink::WebPageSerializerClient implementation ------------------------------
2225
2226 void RenderViewImpl::didSerializeDataForFrame(
2227     const WebURL& frame_url,
2228     const WebCString& data,
2229     WebPageSerializerClient::PageSerializationStatus status) {
2230   Send(new ViewHostMsg_SendSerializedHtmlData(
2231     routing_id(),
2232     frame_url,
2233     data.data(),
2234     static_cast<int32>(status)));
2235 }
2236
2237 // RenderView implementation ---------------------------------------------------
2238
2239 bool RenderViewImpl::Send(IPC::Message* message) {
2240   return RenderWidget::Send(message);
2241 }
2242
2243 RenderFrameImpl* RenderViewImpl::GetMainRenderFrame() {
2244   return main_render_frame_;
2245 }
2246
2247 int RenderViewImpl::GetRoutingID() const {
2248   return routing_id_;
2249 }
2250
2251 gfx::Size RenderViewImpl::GetSize() const {
2252   return size();
2253 }
2254
2255 WebPreferences& RenderViewImpl::GetWebkitPreferences() {
2256   return webkit_preferences_;
2257 }
2258
2259 void RenderViewImpl::SetWebkitPreferences(const WebPreferences& preferences) {
2260   OnUpdateWebPreferences(preferences);
2261 }
2262
2263 blink::WebView* RenderViewImpl::GetWebView() {
2264   return webview();
2265 }
2266
2267 bool RenderViewImpl::IsEditableNode(const WebNode& node) const {
2268   if (node.isNull())
2269     return false;
2270
2271   if (node.isContentEditable())
2272     return true;
2273
2274   if (node.isElementNode()) {
2275     const WebElement& element = node.toConst<WebElement>();
2276     if (element.isTextFormControlElement()) {
2277       if (!(element.hasAttribute("readonly") ||
2278             element.hasAttribute("disabled")))
2279         return true;
2280     }
2281
2282     return base::LowerCaseEqualsASCII(
2283         base::StringPiece16(element.getAttribute("role")), "textbox");
2284   }
2285
2286   return false;
2287 }
2288
2289 bool RenderViewImpl::ShouldDisplayScrollbars(int width, int height) const {
2290   return (!send_preferred_size_changes_ ||
2291           (disable_scrollbars_size_limit_.width() <= width ||
2292            disable_scrollbars_size_limit_.height() <= height));
2293 }
2294
2295 int RenderViewImpl::GetEnabledBindings() const {
2296   return enabled_bindings_;
2297 }
2298
2299 bool RenderViewImpl::GetContentStateImmediately() const {
2300   return send_content_state_immediately_;
2301 }
2302
2303 blink::WebPageVisibilityState RenderViewImpl::GetVisibilityState() const {
2304   return visibilityState();
2305 }
2306
2307 void RenderViewImpl::DidStartLoading() {
2308   main_render_frame_->didStartLoading(true);
2309 }
2310
2311 void RenderViewImpl::DidStopLoading() {
2312   main_render_frame_->didStopLoading();
2313 }
2314
2315 blink::WebElement RenderViewImpl::GetFocusedElement() const {
2316   if (!webview())
2317     return WebElement();
2318   WebFrame* focused_frame = webview()->focusedFrame();
2319   if (focused_frame) {
2320     WebDocument doc = focused_frame->document();
2321     if (!doc.isNull())
2322       return doc.focusedElement();
2323   }
2324
2325   return WebElement();
2326 }
2327
2328 blink::WebPlugin* RenderViewImpl::GetWebPluginForFind() {
2329   if (!webview())
2330     return NULL;
2331
2332   WebFrame* main_frame = webview()->mainFrame();
2333   if (main_frame->isWebLocalFrame() &&
2334       main_frame->document().isPluginDocument())
2335     return webview()->mainFrame()->document().to<WebPluginDocument>().plugin();
2336
2337 #if defined(ENABLE_PLUGINS)
2338   if (plugin_find_handler_)
2339     return plugin_find_handler_->container()->plugin();
2340 #endif
2341
2342   return NULL;
2343 }
2344
2345 void RenderViewImpl::OnFind(int request_id,
2346                             const base::string16& search_text,
2347                             const WebFindOptions& options) {
2348   WebFrame* main_frame = webview()->mainFrame();
2349   blink::WebPlugin* plugin = GetWebPluginForFind();
2350   // Check if the plugin still exists in the document.
2351   if (plugin) {
2352     if (options.findNext) {
2353       // Just navigate back/forward.
2354       plugin->selectFindResult(options.forward);
2355     } else {
2356       if (!plugin->startFind(
2357           search_text, options.matchCase, request_id)) {
2358         // Send "no results".
2359         SendFindReply(request_id, 0, 0, gfx::Rect(), true);
2360       }
2361     }
2362     return;
2363   }
2364
2365   WebFrame* frame_after_main = main_frame->traverseNext(true);
2366   WebFrame* focused_frame = webview()->focusedFrame();
2367   WebFrame* search_frame = focused_frame;  // start searching focused frame.
2368
2369   bool multi_frame = (frame_after_main != main_frame);
2370
2371   // If we have multiple frames, we don't want to wrap the search within the
2372   // frame, so we check here if we only have main_frame in the chain.
2373   bool wrap_within_frame = !multi_frame;
2374
2375   WebRect selection_rect;
2376   bool result = false;
2377
2378   // If something is selected when we start searching it means we cannot just
2379   // increment the current match ordinal; we need to re-generate it.
2380   WebRange current_selection = focused_frame->selectionRange();
2381
2382   do {
2383     result = search_frame->find(
2384         request_id, search_text, options, wrap_within_frame, &selection_rect);
2385
2386     if (!result) {
2387       // don't leave text selected as you move to the next frame.
2388       search_frame->executeCommand(WebString::fromUTF8("Unselect"),
2389                                    GetFocusedElement());
2390
2391       // Find the next frame, but skip the invisible ones.
2392       do {
2393         // What is the next frame to search? (we might be going backwards). Note
2394         // that we specify wrap=true so that search_frame never becomes NULL.
2395         search_frame = options.forward ?
2396             search_frame->traverseNext(true) :
2397             search_frame->traversePrevious(true);
2398       } while (!search_frame->hasVisibleContent() &&
2399                search_frame != focused_frame);
2400
2401       // Make sure selection doesn't affect the search operation in new frame.
2402       search_frame->executeCommand(WebString::fromUTF8("Unselect"),
2403                                    GetFocusedElement());
2404
2405       // If we have multiple frames and we have wrapped back around to the
2406       // focused frame, we need to search it once more allowing wrap within
2407       // the frame, otherwise it will report 'no match' if the focused frame has
2408       // reported matches, but no frames after the focused_frame contain a
2409       // match for the search word(s).
2410       if (multi_frame && search_frame == focused_frame) {
2411         result = search_frame->find(
2412             request_id, search_text, options, true,  // Force wrapping.
2413             &selection_rect);
2414       }
2415     }
2416
2417     webview()->setFocusedFrame(search_frame);
2418   } while (!result && search_frame != focused_frame);
2419
2420   if (options.findNext && current_selection.isNull()) {
2421     // Force the main_frame to report the actual count.
2422     main_frame->increaseMatchCount(0, request_id);
2423   } else {
2424     // If nothing is found, set result to "0 of 0", otherwise, set it to
2425     // "-1 of 1" to indicate that we found at least one item, but we don't know
2426     // yet what is active.
2427     int ordinal = result ? -1 : 0;  // -1 here means, we might know more later.
2428     int match_count = result ? 1 : 0;  // 1 here means possibly more coming.
2429
2430     // If we find no matches then this will be our last status update.
2431     // Otherwise the scoping effort will send more results.
2432     bool final_status_update = !result;
2433
2434     SendFindReply(request_id, match_count, ordinal, selection_rect,
2435                   final_status_update);
2436
2437     // Scoping effort begins, starting with the mainframe.
2438     search_frame = main_frame;
2439
2440     main_frame->resetMatchCount();
2441
2442     do {
2443       // Cancel all old scoping requests before starting a new one.
2444       search_frame->cancelPendingScopingEffort();
2445
2446       // We don't start another scoping effort unless at least one match has
2447       // been found.
2448       if (result) {
2449         // Start new scoping request. If the scoping function determines that it
2450         // needs to scope, it will defer until later.
2451         search_frame->scopeStringMatches(request_id,
2452                                          search_text,
2453                                          options,
2454                                          true);  // reset the tickmarks
2455       }
2456
2457       // Iterate to the next frame. The frame will not necessarily scope, for
2458       // example if it is not visible.
2459       search_frame = search_frame->traverseNext(true);
2460     } while (search_frame != main_frame);
2461   }
2462 }
2463
2464 void RenderViewImpl::OnStopFinding(StopFindAction action) {
2465   WebView* view = webview();
2466   if (!view)
2467     return;
2468
2469   blink::WebPlugin* plugin = GetWebPluginForFind();
2470   if (plugin) {
2471     plugin->stopFind();
2472     return;
2473   }
2474
2475   bool clear_selection = action == STOP_FIND_ACTION_CLEAR_SELECTION;
2476   if (clear_selection) {
2477     view->focusedFrame()->executeCommand(WebString::fromUTF8("Unselect"),
2478                                          GetFocusedElement());
2479   }
2480
2481   WebFrame* frame = view->mainFrame();
2482   while (frame) {
2483     frame->stopFinding(clear_selection);
2484     frame = frame->traverseNext(false);
2485   }
2486
2487   if (action == STOP_FIND_ACTION_ACTIVATE_SELECTION) {
2488     WebFrame* focused_frame = view->focusedFrame();
2489     if (focused_frame) {
2490       WebDocument doc = focused_frame->document();
2491       if (!doc.isNull()) {
2492         WebElement element = doc.focusedElement();
2493         if (!element.isNull())
2494           element.simulateClick();
2495       }
2496     }
2497   }
2498 }
2499
2500 #if defined(OS_ANDROID)
2501 void RenderViewImpl::OnActivateNearestFindResult(int request_id,
2502                                                  float x, float y) {
2503   if (!webview())
2504       return;
2505
2506   WebFrame* main_frame = webview()->mainFrame();
2507   WebRect selection_rect;
2508   int ordinal = main_frame->selectNearestFindMatch(WebFloatPoint(x, y),
2509                                                    &selection_rect);
2510   if (ordinal == -1) {
2511     // Something went wrong, so send a no-op reply (force the main_frame to
2512     // report the current match count) in case the host is waiting for a
2513     // response due to rate-limiting).
2514     main_frame->increaseMatchCount(0, request_id);
2515     return;
2516   }
2517
2518   SendFindReply(request_id,
2519                 -1 /* number_of_matches */,
2520                 ordinal,
2521                 selection_rect,
2522                 true /* final_update */);
2523 }
2524
2525 void RenderViewImpl::OnFindMatchRects(int current_version) {
2526   if (!webview())
2527       return;
2528
2529   WebFrame* main_frame = webview()->mainFrame();
2530   std::vector<gfx::RectF> match_rects;
2531
2532   int rects_version = main_frame->findMatchMarkersVersion();
2533   if (current_version != rects_version) {
2534     WebVector<WebFloatRect> web_match_rects;
2535     main_frame->findMatchRects(web_match_rects);
2536     match_rects.reserve(web_match_rects.size());
2537     for (size_t i = 0; i < web_match_rects.size(); ++i)
2538       match_rects.push_back(gfx::RectF(web_match_rects[i]));
2539   }
2540
2541   gfx::RectF active_rect = main_frame->activeFindMatchRect();
2542   Send(new ViewHostMsg_FindMatchRects_Reply(routing_id_,
2543                                                rects_version,
2544                                                match_rects,
2545                                                active_rect));
2546 }
2547 #endif
2548
2549 void RenderViewImpl::OnResetPageScale() {
2550   if (!webview())
2551     return;
2552   webview()->setPageScaleFactor(1);
2553 }
2554
2555 void RenderViewImpl::OnZoom(PageZoom zoom) {
2556   if (!webview())  // Not sure if this can happen, but no harm in being safe.
2557     return;
2558
2559   webview()->hidePopups();
2560
2561   double old_zoom_level = webview()->zoomLevel();
2562   double zoom_level;
2563   if (zoom == PAGE_ZOOM_RESET) {
2564     zoom_level = 0;
2565   } else if (static_cast<int>(old_zoom_level) == old_zoom_level) {
2566     // Previous zoom level is a whole number, so just increment/decrement.
2567     zoom_level = old_zoom_level + zoom;
2568   } else {
2569     // Either the user hit the zoom factor limit and thus the zoom level is now
2570     // not a whole number, or a plugin changed it to a custom value.  We want
2571     // to go to the next whole number so that the user can always get back to
2572     // 100% with the keyboard/menu.
2573     if ((old_zoom_level > 1 && zoom > 0) ||
2574         (old_zoom_level < 1 && zoom < 0)) {
2575       zoom_level = static_cast<int>(old_zoom_level + zoom);
2576     } else {
2577       // We're going towards 100%, so first go to the next whole number.
2578       zoom_level = static_cast<int>(old_zoom_level);
2579     }
2580   }
2581   webview()->setZoomLevel(zoom_level);
2582   zoomLevelChanged();
2583 }
2584
2585 void RenderViewImpl::OnSetZoomLevelForLoadingURL(const GURL& url,
2586                                                  double zoom_level) {
2587 #if !defined(OS_ANDROID)
2588   // On Android, page zoom isn't used, and in case of WebView, text zoom is used
2589   // for legacy WebView text scaling emulation. Thus, the code that resets
2590   // the zoom level from this map will be effectively resetting text zoom level.
2591   host_zoom_levels_[url] = zoom_level;
2592 #endif
2593 }
2594
2595 void RenderViewImpl::OnSetZoomLevelForView(bool uses_temporary_zoom_level,
2596                                            double level) {
2597   uses_temporary_zoom_level_ = uses_temporary_zoom_level;
2598
2599   webview()->hidePopups();
2600   webview()->setZoomLevel(level);
2601 }
2602
2603 void RenderViewImpl::OnSetPageEncoding(const std::string& encoding_name) {
2604   webview()->setPageEncoding(WebString::fromUTF8(encoding_name));
2605 }
2606
2607 void RenderViewImpl::OnResetPageEncodingToDefault() {
2608   WebString no_encoding;
2609   webview()->setPageEncoding(no_encoding);
2610 }
2611
2612 void RenderViewImpl::OnAllowBindings(int enabled_bindings_flags) {
2613   if ((enabled_bindings_flags & BINDINGS_POLICY_WEB_UI) &&
2614       !(enabled_bindings_ & BINDINGS_POLICY_WEB_UI)) {
2615     // WebUIExtensionData deletes itself when we're destroyed.
2616     new WebUIExtensionData(this);
2617     // WebUIMojo deletes itself when we're destroyed.
2618     new WebUIMojo(this);
2619   }
2620
2621   enabled_bindings_ |= enabled_bindings_flags;
2622
2623   // Keep track of the total bindings accumulated in this process.
2624   RenderProcess::current()->AddBindings(enabled_bindings_flags);
2625 }
2626
2627 void RenderViewImpl::OnDragTargetDragEnter(const DropData& drop_data,
2628                                            const gfx::Point& client_point,
2629                                            const gfx::Point& screen_point,
2630                                            WebDragOperationsMask ops,
2631                                            int key_modifiers) {
2632   WebDragOperation operation = webview()->dragTargetDragEnter(
2633       DropDataToWebDragData(drop_data),
2634       client_point,
2635       screen_point,
2636       ops,
2637       key_modifiers);
2638
2639   Send(new DragHostMsg_UpdateDragCursor(routing_id_, operation));
2640 }
2641
2642 void RenderViewImpl::OnDragTargetDragOver(const gfx::Point& client_point,
2643                                           const gfx::Point& screen_point,
2644                                           WebDragOperationsMask ops,
2645                                           int key_modifiers) {
2646   WebDragOperation operation = webview()->dragTargetDragOver(
2647       client_point,
2648       screen_point,
2649       ops,
2650       key_modifiers);
2651
2652   Send(new DragHostMsg_UpdateDragCursor(routing_id_, operation));
2653 }
2654
2655 void RenderViewImpl::OnDragTargetDragLeave() {
2656   webview()->dragTargetDragLeave();
2657 }
2658
2659 void RenderViewImpl::OnDragTargetDrop(const gfx::Point& client_point,
2660                                       const gfx::Point& screen_point,
2661                                       int key_modifiers) {
2662   webview()->dragTargetDrop(client_point, screen_point, key_modifiers);
2663 }
2664
2665 void RenderViewImpl::OnDragSourceEnded(const gfx::Point& client_point,
2666                                        const gfx::Point& screen_point,
2667                                        WebDragOperation op) {
2668   webview()->dragSourceEndedAt(client_point, screen_point, op);
2669 }
2670
2671 void RenderViewImpl::OnDragSourceSystemDragEnded() {
2672   webview()->dragSourceSystemDragEnded();
2673 }
2674
2675 void RenderViewImpl::OnUpdateWebPreferences(const WebPreferences& prefs) {
2676   webkit_preferences_ = prefs;
2677   ApplyWebPreferencesInternal(webkit_preferences_, webview(), compositor_deps_);
2678 }
2679
2680 void RenderViewImpl::OnEnumerateDirectoryResponse(
2681     int id,
2682     const std::vector<base::FilePath>& paths) {
2683   if (!enumeration_completions_[id])
2684     return;
2685
2686   WebVector<WebString> ws_file_names(paths.size());
2687   for (size_t i = 0; i < paths.size(); ++i)
2688     ws_file_names[i] = paths[i].AsUTF16Unsafe();
2689
2690   enumeration_completions_[id]->didChooseFile(ws_file_names);
2691   enumeration_completions_.erase(id);
2692 }
2693
2694 void RenderViewImpl::OnFileChooserResponse(
2695     const std::vector<content::FileChooserFileInfo>& files) {
2696   // This could happen if we navigated to a different page before the user
2697   // closed the chooser.
2698   if (file_chooser_completions_.empty())
2699     return;
2700
2701   // Convert Chrome's SelectedFileInfo list to WebKit's.
2702   WebVector<WebFileChooserCompletion::SelectedFileInfo> selected_files(
2703       files.size());
2704   for (size_t i = 0; i < files.size(); ++i) {
2705     WebFileChooserCompletion::SelectedFileInfo selected_file;
2706     selected_file.path = files[i].file_path.AsUTF16Unsafe();
2707     selected_file.displayName =
2708         base::FilePath(files[i].display_name).AsUTF16Unsafe();
2709     if (files[i].file_system_url.is_valid()) {
2710       selected_file.fileSystemURL = files[i].file_system_url;
2711       selected_file.length = files[i].length;
2712       selected_file.modificationTime = files[i].modification_time.ToDoubleT();
2713       selected_file.isDirectory = files[i].is_directory;
2714     }
2715     selected_files[i] = selected_file;
2716   }
2717
2718   if (file_chooser_completions_.front()->completion)
2719     file_chooser_completions_.front()->completion->didChooseFile(
2720         selected_files);
2721   file_chooser_completions_.pop_front();
2722
2723   // If there are more pending file chooser requests, schedule one now.
2724   if (!file_chooser_completions_.empty()) {
2725     Send(new ViewHostMsg_RunFileChooser(routing_id_,
2726         file_chooser_completions_.front()->params));
2727   }
2728 }
2729
2730 void RenderViewImpl::OnEnableAutoResize(const gfx::Size& min_size,
2731                                         const gfx::Size& max_size) {
2732   DCHECK(disable_scrollbars_size_limit_.IsEmpty());
2733   if (!webview())
2734     return;
2735   auto_resize_mode_ = true;
2736   webview()->enableAutoResizeMode(min_size, max_size);
2737 }
2738
2739 void RenderViewImpl::OnDisableAutoResize(const gfx::Size& new_size) {
2740   DCHECK(disable_scrollbars_size_limit_.IsEmpty());
2741   if (!webview())
2742     return;
2743   auto_resize_mode_ = false;
2744   webview()->disableAutoResizeMode();
2745
2746   if (!new_size.IsEmpty()) {
2747     Resize(new_size,
2748            physical_backing_size_,
2749            top_controls_shrink_blink_size_,
2750            top_controls_height_,
2751            visible_viewport_size_,
2752            resizer_rect_,
2753            is_fullscreen_granted_,
2754            display_mode_,
2755            NO_RESIZE_ACK);
2756   }
2757 }
2758
2759 void RenderViewImpl::OnEnablePreferredSizeChangedMode() {
2760   if (send_preferred_size_changes_)
2761     return;
2762   send_preferred_size_changes_ = true;
2763
2764   // Start off with an initial preferred size notification (in case
2765   // |didUpdateLayout| was already called).
2766   didUpdateLayout();
2767 }
2768
2769 void RenderViewImpl::OnDisableScrollbarsForSmallWindows(
2770     const gfx::Size& disable_scrollbar_size_limit) {
2771   disable_scrollbars_size_limit_ = disable_scrollbar_size_limit;
2772 }
2773
2774 void RenderViewImpl::OnSetRendererPrefs(
2775     const RendererPreferences& renderer_prefs) {
2776   double old_zoom_level = renderer_preferences_.default_zoom_level;
2777   std::string old_accept_languages = renderer_preferences_.accept_languages;
2778
2779   renderer_preferences_ = renderer_prefs;
2780
2781   UpdateFontRenderingFromRendererPrefs();
2782   UpdateThemePrefs();
2783
2784 #if defined(USE_DEFAULT_RENDER_THEME)
2785   if (renderer_prefs.use_custom_colors) {
2786     WebColorName name = blink::WebColorWebkitFocusRingColor;
2787     blink::setNamedColors(&name, &renderer_prefs.focus_ring_color, 1);
2788     blink::setCaretBlinkInterval(renderer_prefs.caret_blink_interval);
2789
2790     if (webview()) {
2791       webview()->setSelectionColors(
2792           renderer_prefs.active_selection_bg_color,
2793           renderer_prefs.active_selection_fg_color,
2794           renderer_prefs.inactive_selection_bg_color,
2795           renderer_prefs.inactive_selection_fg_color);
2796       webview()->themeChanged();
2797     }
2798   }
2799 #endif  // defined(USE_DEFAULT_RENDER_THEME)
2800
2801   // If the zoom level for this page matches the old zoom default, and this
2802   // is not a plugin, update the zoom level to match the new default.
2803   if (webview() && webview()->mainFrame()->isWebLocalFrame() &&
2804       !webview()->mainFrame()->document().isPluginDocument() &&
2805       !ZoomValuesEqual(old_zoom_level,
2806                        renderer_preferences_.default_zoom_level) &&
2807       ZoomValuesEqual(webview()->zoomLevel(), old_zoom_level)) {
2808     webview()->setZoomLevel(renderer_preferences_.default_zoom_level);
2809     zoomLevelChanged();
2810   }
2811
2812   if (webview() &&
2813       old_accept_languages != renderer_preferences_.accept_languages) {
2814     webview()->acceptLanguagesChanged();
2815   }
2816 }
2817
2818 void RenderViewImpl::OnMediaPlayerActionAt(const gfx::Point& location,
2819                                            const WebMediaPlayerAction& action) {
2820   if (webview())
2821     webview()->performMediaPlayerAction(action, location);
2822 }
2823
2824 void RenderViewImpl::OnOrientationChange() {
2825   if (webview() && webview()->mainFrame()->isWebLocalFrame())
2826     webview()->mainFrame()->toWebLocalFrame()->sendOrientationChangeEvent();
2827 }
2828
2829 void RenderViewImpl::OnPluginActionAt(const gfx::Point& location,
2830                                       const WebPluginAction& action) {
2831   if (webview())
2832     webview()->performPluginAction(action, location);
2833 }
2834
2835 void RenderViewImpl::OnGetAllSavableResourceLinksForCurrentPage(
2836     const GURL& page_url) {
2837   // Prepare list to storage all savable resource links.
2838   std::vector<GURL> resources_list;
2839   std::vector<GURL> referrer_urls_list;
2840   std::vector<blink::WebReferrerPolicy> referrer_policies_list;
2841   std::vector<GURL> frames_list;
2842   SavableResourcesResult result(&resources_list,
2843                                 &referrer_urls_list,
2844                                 &referrer_policies_list,
2845                                 &frames_list);
2846
2847   // webkit/ doesn't know about Referrer.
2848   if (!GetAllSavableResourceLinksForCurrentPage(
2849           webview(),
2850           page_url,
2851           &result,
2852           const_cast<const char**>(GetSavableSchemes()))) {
2853     // If something is wrong when collecting all savable resource links,
2854     // send empty list to embedder(browser) to tell it failed.
2855     referrer_urls_list.clear();
2856     referrer_policies_list.clear();
2857     resources_list.clear();
2858     frames_list.clear();
2859   }
2860
2861   std::vector<Referrer> referrers_list;
2862   CHECK_EQ(referrer_urls_list.size(), referrer_policies_list.size());
2863   for (unsigned i = 0; i < referrer_urls_list.size(); ++i) {
2864     referrers_list.push_back(
2865         Referrer(referrer_urls_list[i], referrer_policies_list[i]));
2866   }
2867
2868   // Send result of all savable resource links to embedder.
2869   Send(new ViewHostMsg_SendCurrentPageAllSavableResourceLinks(routing_id(),
2870                                                               resources_list,
2871                                                               referrers_list,
2872                                                               frames_list));
2873 }
2874
2875 void RenderViewImpl::OnGetSerializedHtmlDataForCurrentPageWithLocalLinks(
2876     const std::vector<GURL>& links,
2877     const std::vector<base::FilePath>& local_paths,
2878     const base::FilePath& local_directory_name) {
2879
2880   // Convert std::vector of GURLs to WebVector<WebURL>
2881   WebVector<WebURL> weburl_links(links);
2882
2883   // Convert std::vector of base::FilePath to WebVector<WebString>
2884   WebVector<WebString> webstring_paths(local_paths.size());
2885   for (size_t i = 0; i < local_paths.size(); i++)
2886     webstring_paths[i] = local_paths[i].AsUTF16Unsafe();
2887
2888   WebPageSerializer::serialize(webview()->mainFrame()->toWebLocalFrame(),
2889                                true,
2890                                this,
2891                                weburl_links,
2892                                webstring_paths,
2893                                local_directory_name.AsUTF16Unsafe());
2894 }
2895
2896 void RenderViewImpl::OnSuppressDialogsUntilSwapOut() {
2897   // Don't show any more dialogs until we finish OnSwapOut.
2898   suppress_dialogs_until_swap_out_ = true;
2899 }
2900
2901 void RenderViewImpl::OnClosePage() {
2902   FOR_EACH_OBSERVER(RenderViewObserver, observers_, ClosePage());
2903   // TODO(creis): We'd rather use webview()->Close() here, but that currently
2904   // sets the WebView's delegate_ to NULL, preventing any JavaScript dialogs
2905   // in the onunload handler from appearing.  For now, we're bypassing that and
2906   // calling the FrameLoader's CloseURL method directly.  This should be
2907   // revisited to avoid having two ways to close a page.  Having a single way
2908   // to close that can run onunload is also useful for fixing
2909   // http://b/issue?id=753080.
2910   webview()->mainFrame()->dispatchUnloadEvent();
2911
2912   Send(new ViewHostMsg_ClosePage_ACK(routing_id_));
2913 }
2914
2915 void RenderViewImpl::OnClose() {
2916   if (closing_)
2917     RenderThread::Get()->Send(new ViewHostMsg_Close_ACK(routing_id_));
2918   RenderWidget::OnClose();
2919 }
2920
2921 void RenderViewImpl::OnThemeChanged() {
2922 #if defined(USE_AURA)
2923   // Aura doesn't care if we switch themes.
2924 #elif defined(OS_WIN)
2925   ui::NativeThemeWin::instance()->CloseHandles();
2926   if (webview())
2927     webview()->themeChanged();
2928 #else  // defined(OS_WIN)
2929   // TODO(port): we don't support theming on non-Windows platforms yet
2930   NOTIMPLEMENTED();
2931 #endif
2932 }
2933
2934 void RenderViewImpl::OnMoveOrResizeStarted() {
2935   if (webview())
2936     webview()->hidePopups();
2937 }
2938
2939 void RenderViewImpl::OnResize(const ViewMsg_Resize_Params& params) {
2940   TRACE_EVENT0("renderer", "RenderViewImpl::OnResize");
2941   if (webview()) {
2942     webview()->hidePopups();
2943     if (send_preferred_size_changes_) {
2944       webview()->mainFrame()->setCanHaveScrollbars(
2945           ShouldDisplayScrollbars(params.new_size.width(),
2946                                   params.new_size.height()));
2947     }
2948     if (display_mode_ != params.display_mode) {
2949       display_mode_ = params.display_mode;
2950       webview()->setDisplayMode(display_mode_);
2951     }
2952   }
2953
2954   gfx::Size old_visible_viewport_size = visible_viewport_size_;
2955
2956   RenderWidget::OnResize(params);
2957
2958   if (old_visible_viewport_size != visible_viewport_size_)
2959     has_scrolled_focused_editable_node_into_rect_ = false;
2960 }
2961
2962 void RenderViewImpl::DidInitiatePaint() {
2963 #if defined(ENABLE_PLUGINS)
2964   // Notify all instances that we painted.  The same caveats apply as for
2965   // ViewFlushedPaint regarding instances closing themselves, so we take
2966   // similar precautions.
2967   PepperPluginSet plugins = active_pepper_instances_;
2968   for (PepperPluginSet::iterator i = plugins.begin(); i != plugins.end(); ++i) {
2969     if (active_pepper_instances_.find(*i) != active_pepper_instances_.end())
2970       (*i)->ViewInitiatedPaint();
2971   }
2972 #endif
2973 }
2974
2975 void RenderViewImpl::DidFlushPaint() {
2976   // If the RenderWidget is closing down then early-exit, otherwise we'll crash.
2977   // See crbug.com/112921.
2978   if (!webview())
2979     return;
2980
2981   WebFrame* main_frame = webview()->mainFrame();
2982   for (WebFrame* frame = main_frame; frame;
2983        frame = frame->traverseNext(false)) {
2984     // TODO(nasko): This is a hack for the case in which the top-level
2985     // frame is being rendered in another process. It will not
2986     // behave correctly for out of process iframes.
2987     if (frame->isWebLocalFrame()) {
2988       main_frame = frame;
2989       break;
2990     }
2991   }
2992
2993   // If we have a provisional frame we are between the start and commit stages
2994   // of loading and we don't want to save stats.
2995   if (!main_frame->provisionalDataSource()) {
2996     WebDataSource* ds = main_frame->dataSource();
2997     if (!ds)
2998       return;
2999
3000     DocumentState* document_state = DocumentState::FromDataSource(ds);
3001
3002     // TODO(jar): The following code should all be inside a method, probably in
3003     // NavigatorState.
3004     Time now = Time::Now();
3005     if (document_state->first_paint_time().is_null()) {
3006       document_state->set_first_paint_time(now);
3007     }
3008     if (document_state->first_paint_after_load_time().is_null() &&
3009         !document_state->finish_load_time().is_null()) {
3010       document_state->set_first_paint_after_load_time(now);
3011     }
3012   }
3013 }
3014
3015 gfx::Vector2d RenderViewImpl::GetScrollOffset() {
3016   WebFrame* main_frame = webview()->mainFrame();
3017   for (WebFrame* frame = main_frame; frame;
3018        frame = frame->traverseNext(false)) {
3019     // TODO(nasko): This is a hack for the case in which the top-level
3020     // frame is being rendered in another process. It will not
3021     // behave correctly for out of process iframes.
3022     if (frame->isWebLocalFrame()) {
3023       main_frame = frame;
3024       break;
3025     }
3026   }
3027
3028   WebSize scroll_offset = main_frame->scrollOffset();
3029   return gfx::Vector2d(scroll_offset.width, scroll_offset.height);
3030 }
3031
3032 void RenderViewImpl::OnClearFocusedElement() {
3033   if (webview())
3034     webview()->clearFocusedElement();
3035 }
3036
3037 void RenderViewImpl::OnSetBackgroundOpaque(bool opaque) {
3038   if (webview())
3039     webview()->setIsTransparent(!opaque);
3040   if (compositor_)
3041     compositor_->setHasTransparentBackground(!opaque);
3042 }
3043
3044 void RenderViewImpl::OnSetActive(bool active) {
3045   if (webview())
3046     webview()->setIsActive(active);
3047
3048 #if defined(ENABLE_PLUGINS) && defined(OS_MACOSX)
3049   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3050   for (plugin_it = plugin_delegates_.begin();
3051        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3052     (*plugin_it)->SetWindowFocus(active);
3053   }
3054 #endif
3055 }
3056
3057 #if defined(OS_MACOSX)
3058 void RenderViewImpl::OnSetWindowVisibility(bool visible) {
3059 #if defined(ENABLE_PLUGINS)
3060   // Inform plugins that their container has changed visibility.
3061   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3062   for (plugin_it = plugin_delegates_.begin();
3063        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3064     (*plugin_it)->SetContainerVisibility(visible);
3065   }
3066 #endif
3067 }
3068
3069 void RenderViewImpl::OnWindowFrameChanged(const gfx::Rect& window_frame,
3070                                           const gfx::Rect& view_frame) {
3071 #if defined(ENABLE_PLUGINS)
3072   // Inform plugins that their window's frame has changed.
3073   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3074   for (plugin_it = plugin_delegates_.begin();
3075        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3076     (*plugin_it)->WindowFrameChanged(window_frame, view_frame);
3077   }
3078 #endif
3079 }
3080
3081 void RenderViewImpl::OnPluginImeCompositionCompleted(const base::string16& text,
3082                                                      int plugin_id) {
3083   // WebPluginDelegateProxy is responsible for figuring out if this event
3084   // applies to it or not, so inform all the delegates.
3085   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3086   for (plugin_it = plugin_delegates_.begin();
3087        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3088     (*plugin_it)->ImeCompositionCompleted(text, plugin_id);
3089   }
3090 }
3091 #endif  // OS_MACOSX
3092
3093 void RenderViewImpl::Close() {
3094   // We need to grab a pointer to the doomed WebView before we destroy it.
3095   WebView* doomed = webview();
3096   RenderWidget::Close();
3097   g_view_map.Get().erase(doomed);
3098   g_routing_id_view_map.Get().erase(routing_id_);
3099   RenderThread::Get()->Send(new ViewHostMsg_Close_ACK(routing_id_));
3100 }
3101
3102 void RenderViewImpl::DidHandleKeyEvent() {
3103   ClearEditCommands();
3104 }
3105
3106 bool RenderViewImpl::WillHandleMouseEvent(const blink::WebMouseEvent& event) {
3107   possible_drag_event_info_.event_source =
3108       ui::DragDropTypes::DRAG_EVENT_SOURCE_MOUSE;
3109   possible_drag_event_info_.event_location =
3110       gfx::Point(event.globalX, event.globalY);
3111
3112 #if defined(ENABLE_PLUGINS)
3113   // This method is called for every mouse event that the render view receives.
3114   // And then the mouse event is forwarded to WebKit, which dispatches it to the
3115   // event target. Potentially a Pepper plugin will receive the event.
3116   // In order to tell whether a plugin gets the last mouse event and which it
3117   // is, we set |pepper_last_mouse_event_target_| to NULL here. If a plugin gets
3118   // the event, it will notify us via DidReceiveMouseEvent() and set itself as
3119   // |pepper_last_mouse_event_target_|.
3120   pepper_last_mouse_event_target_ = NULL;
3121 #endif
3122
3123   // If the mouse is locked, only the current owner of the mouse lock can
3124   // process mouse events.
3125   return mouse_lock_dispatcher_->WillHandleMouseEvent(event);
3126 }
3127
3128 bool RenderViewImpl::WillHandleGestureEvent(
3129     const blink::WebGestureEvent& event) {
3130   possible_drag_event_info_.event_source =
3131       ui::DragDropTypes::DRAG_EVENT_SOURCE_TOUCH;
3132   possible_drag_event_info_.event_location =
3133       gfx::Point(event.globalX, event.globalY);
3134   return false;
3135 }
3136
3137 bool RenderViewImpl::HasTouchEventHandlersAt(const gfx::Point& point) const {
3138   if (!webview())
3139     return false;
3140   return webview()->hasTouchEventHandlersAt(point);
3141 }
3142
3143 void RenderViewImpl::OnWasHidden() {
3144   RenderWidget::OnWasHidden();
3145
3146 #if defined(OS_ANDROID) && defined(ENABLE_WEBRTC)
3147   RenderThreadImpl::current()->video_capture_impl_manager()->
3148       SuspendDevices(true);
3149   if (speech_recognition_dispatcher_)
3150     speech_recognition_dispatcher_->AbortAllRecognitions();
3151 #endif
3152
3153   if (webview())
3154     webview()->setVisibilityState(visibilityState(), false);
3155
3156 #if defined(ENABLE_PLUGINS)
3157   for (PepperPluginSet::iterator i = active_pepper_instances_.begin();
3158        i != active_pepper_instances_.end(); ++i)
3159     (*i)->PageVisibilityChanged(false);
3160
3161 #if defined(OS_MACOSX)
3162   // Inform NPAPI plugins that their container is no longer visible.
3163   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3164   for (plugin_it = plugin_delegates_.begin();
3165        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3166     (*plugin_it)->SetContainerVisibility(false);
3167   }
3168 #endif  // OS_MACOSX
3169 #endif // ENABLE_PLUGINS
3170 }
3171
3172 void RenderViewImpl::OnWasShown(bool needs_repainting,
3173                                 const ui::LatencyInfo& latency_info) {
3174   RenderWidget::OnWasShown(needs_repainting, latency_info);
3175
3176 #if defined(OS_ANDROID) && defined(ENABLE_WEBRTC)
3177   RenderThreadImpl::current()->video_capture_impl_manager()->
3178       SuspendDevices(false);
3179 #endif
3180
3181   if (webview())
3182     webview()->setVisibilityState(visibilityState(), false);
3183
3184 #if defined(ENABLE_PLUGINS)
3185   for (PepperPluginSet::iterator i = active_pepper_instances_.begin();
3186        i != active_pepper_instances_.end(); ++i)
3187     (*i)->PageVisibilityChanged(true);
3188
3189 #if defined(OS_MACOSX)
3190   // Inform NPAPI plugins that their container is now visible.
3191   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3192   for (plugin_it = plugin_delegates_.begin();
3193        plugin_it != plugin_delegates_.end(); ++plugin_it) {
3194     (*plugin_it)->SetContainerVisibility(true);
3195   }
3196 #endif  // OS_MACOSX
3197 #endif  // ENABLE_PLUGINS
3198 }
3199
3200 GURL RenderViewImpl::GetURLForGraphicsContext3D() {
3201   DCHECK(webview());
3202   if (webview()->mainFrame()->isWebLocalFrame())
3203     return GURL(webview()->mainFrame()->document().url());
3204   else
3205     return GURL("chrome://gpu/RenderViewImpl::CreateGraphicsContext3D");
3206 }
3207
3208 void RenderViewImpl::OnSetFocus(bool enable) {
3209   RenderWidget::OnSetFocus(enable);
3210
3211 #if defined(ENABLE_PLUGINS)
3212   if (webview() && webview()->isActive()) {
3213     // Notify all NPAPI plugins.
3214     std::set<WebPluginDelegateProxy*>::iterator plugin_it;
3215     for (plugin_it = plugin_delegates_.begin();
3216          plugin_it != plugin_delegates_.end(); ++plugin_it) {
3217 #if defined(OS_MACOSX)
3218       // RenderWidget's call to setFocus can cause the underlying webview's
3219       // activation state to change just like a call to setIsActive.
3220       if (enable)
3221         (*plugin_it)->SetWindowFocus(true);
3222 #endif
3223       (*plugin_it)->SetContentAreaFocus(enable);
3224     }
3225   }
3226   // Notify all Pepper plugins.
3227   for (PepperPluginSet::iterator i = active_pepper_instances_.begin();
3228        i != active_pepper_instances_.end(); ++i)
3229     (*i)->SetContentAreaFocus(enable);
3230 #endif
3231   // Notify all BrowserPlugins of the RenderView's focus state.
3232   if (BrowserPluginManager::Get())
3233     BrowserPluginManager::Get()->UpdateFocusState();
3234 }
3235
3236 void RenderViewImpl::OnImeSetComposition(
3237     const base::string16& text,
3238     const std::vector<blink::WebCompositionUnderline>& underlines,
3239     int selection_start,
3240     int selection_end) {
3241 #if defined(ENABLE_PLUGINS)
3242   if (focused_pepper_plugin_) {
3243     focused_pepper_plugin_->render_frame()->OnImeSetComposition(
3244         text, underlines, selection_start, selection_end);
3245     return;
3246   }
3247
3248 #if defined(OS_WIN)
3249   // When a plugin has focus, we create platform-specific IME data used by
3250   // our IME emulator and send it directly to the focused plugin, i.e. we
3251   // bypass WebKit. (WebPluginDelegate dispatches this IME data only when its
3252   // instance ID is the same one as the specified ID.)
3253   if (focused_plugin_id_ >= 0) {
3254     std::vector<int> clauses;
3255     std::vector<int> target;
3256     for (size_t i = 0; i < underlines.size(); ++i) {
3257       clauses.push_back(underlines[i].startOffset);
3258       clauses.push_back(underlines[i].endOffset);
3259       if (underlines[i].thick) {
3260         target.clear();
3261         target.push_back(underlines[i].startOffset);
3262         target.push_back(underlines[i].endOffset);
3263       }
3264     }
3265     std::set<WebPluginDelegateProxy*>::iterator it;
3266     for (it = plugin_delegates_.begin(); it != plugin_delegates_.end(); ++it) {
3267       (*it)->ImeCompositionUpdated(text, clauses, target, selection_end,
3268                                    focused_plugin_id_);
3269     }
3270     return;
3271   }
3272 #endif  // OS_WIN
3273 #endif  // ENABLE_PLUGINS
3274   RenderWidget::OnImeSetComposition(text,
3275                                     underlines,
3276                                     selection_start,
3277                                     selection_end);
3278 }
3279
3280 void RenderViewImpl::OnImeConfirmComposition(
3281     const base::string16& text,
3282     const gfx::Range& replacement_range,
3283     bool keep_selection) {
3284 #if defined(ENABLE_PLUGINS)
3285   if (focused_pepper_plugin_) {
3286     focused_pepper_plugin_->render_frame()->OnImeConfirmComposition(
3287         text, replacement_range, keep_selection);
3288     return;
3289   }
3290 #if defined(OS_WIN)
3291   // Same as OnImeSetComposition(), we send the text from IMEs directly to
3292   // plugins. When we send IME text directly to plugins, we should not send
3293   // it to WebKit to prevent WebKit from controlling IMEs.
3294   // TODO(thakis): Honor |replacement_range| for plugins?
3295   if (focused_plugin_id_ >= 0) {
3296     std::set<WebPluginDelegateProxy*>::iterator it;
3297     for (it = plugin_delegates_.begin();
3298           it != plugin_delegates_.end(); ++it) {
3299       (*it)->ImeCompositionCompleted(text, focused_plugin_id_);
3300     }
3301     return;
3302   }
3303 #endif  // OS_WIN
3304 #endif  // ENABLE_PLUGINS
3305   if (replacement_range.IsValid() && webview()) {
3306     // Select the text in |replacement_range|, it will then be replaced by
3307     // text added by the call to RenderWidget::OnImeConfirmComposition().
3308     if (WebLocalFrame* frame = webview()->focusedFrame()->toWebLocalFrame()) {
3309       WebRange webrange = WebRange::fromDocumentRange(
3310           frame, replacement_range.start(), replacement_range.length());
3311       if (!webrange.isNull())
3312         frame->selectRange(webrange);
3313     }
3314   }
3315   RenderWidget::OnImeConfirmComposition(text,
3316                                         replacement_range,
3317                                         keep_selection);
3318 }
3319
3320 void RenderViewImpl::SetDeviceScaleFactor(float device_scale_factor) {
3321   RenderWidget::SetDeviceScaleFactor(device_scale_factor);
3322   if (webview()) {
3323     webview()->setDeviceScaleFactor(device_scale_factor);
3324     webview()->settings()->setPreferCompositingToLCDTextEnabled(
3325         PreferCompositingToLCDText(compositor_deps_, device_scale_factor_));
3326   }
3327   if (auto_resize_mode_)
3328     AutoResizeCompositor();
3329 }
3330
3331 bool RenderViewImpl::SetDeviceColorProfile(
3332     const std::vector<char>& profile) {
3333   bool changed = RenderWidget::SetDeviceColorProfile(profile);
3334   if (changed && webview()) {
3335     WebVector<char> colorProfile = profile;
3336     webview()->setDeviceColorProfile(colorProfile);
3337   }
3338   return changed;
3339 }
3340
3341 void RenderViewImpl::ResetDeviceColorProfileForTesting() {
3342   RenderWidget::ResetDeviceColorProfileForTesting();
3343   if (webview())
3344     webview()->resetDeviceColorProfile();
3345 }
3346
3347 ui::TextInputType RenderViewImpl::GetTextInputType() {
3348 #if defined(ENABLE_PLUGINS)
3349   if (focused_pepper_plugin_)
3350     return focused_pepper_plugin_->text_input_type();
3351 #endif
3352   return RenderWidget::GetTextInputType();
3353 }
3354
3355 void RenderViewImpl::GetSelectionBounds(gfx::Rect* start, gfx::Rect* end) {
3356 #if defined(ENABLE_PLUGINS)
3357   if (focused_pepper_plugin_) {
3358     // TODO(kinaba) http://crbug.com/101101
3359     // Current Pepper IME API does not handle selection bounds. So we simply
3360     // use the caret position as an empty range for now. It will be updated
3361     // after Pepper API equips features related to surrounding text retrieval.
3362     gfx::Rect caret = focused_pepper_plugin_->GetCaretBounds();
3363     *start = caret;
3364     *end = caret;
3365     return;
3366   }
3367 #endif
3368   RenderWidget::GetSelectionBounds(start, end);
3369 }
3370
3371 void RenderViewImpl::FocusChangeComplete() {
3372   RenderWidget::FocusChangeComplete();
3373   FOR_EACH_OBSERVER(RenderViewObserver, observers_, FocusChangeComplete());
3374 }
3375
3376 void RenderViewImpl::GetCompositionCharacterBounds(
3377     std::vector<gfx::Rect>* bounds) {
3378   DCHECK(bounds);
3379   bounds->clear();
3380
3381 #if defined(ENABLE_PLUGINS)
3382   if (focused_pepper_plugin_) {
3383     return;
3384   }
3385 #endif
3386
3387   if (!webview())
3388     return;
3389   size_t start_offset = 0;
3390   size_t character_count = 0;
3391   if (!webview()->compositionRange(&start_offset, &character_count))
3392     return;
3393   if (character_count == 0)
3394     return;
3395
3396   blink::WebFrame* frame = webview()->focusedFrame();
3397   if (!frame)
3398     return;
3399
3400   bounds->reserve(character_count);
3401   blink::WebRect webrect;
3402   for (size_t i = 0; i < character_count; ++i) {
3403     if (!frame->firstRectForCharacterRange(start_offset + i, 1, webrect)) {
3404       DLOG(ERROR) << "Could not retrieve character rectangle at " << i;
3405       bounds->clear();
3406       return;
3407     }
3408     bounds->push_back(webrect);
3409   }
3410 }
3411
3412 void RenderViewImpl::GetCompositionRange(gfx::Range* range) {
3413 #if defined(ENABLE_PLUGINS)
3414   if (focused_pepper_plugin_) {
3415     return;
3416   }
3417 #endif
3418   RenderWidget::GetCompositionRange(range);
3419 }
3420
3421 bool RenderViewImpl::CanComposeInline() {
3422 #if defined(ENABLE_PLUGINS)
3423   if (focused_pepper_plugin_)
3424     return focused_pepper_plugin_->IsPluginAcceptingCompositionEvents();
3425 #endif
3426   return true;
3427 }
3428
3429 void RenderViewImpl::DidCompletePageScaleAnimation() {
3430   FocusChangeComplete();
3431 }
3432
3433 void RenderViewImpl::SetScreenMetricsEmulationParameters(
3434     bool enabled,
3435     const blink::WebDeviceEmulationParams& params) {
3436   if (webview() && compositor()) {
3437     if (enabled)
3438       webview()->enableDeviceEmulation(params);
3439     else
3440       webview()->disableDeviceEmulation();
3441   }
3442 }
3443
3444 bool RenderViewImpl::ScheduleFileChooser(
3445     const FileChooserParams& params,
3446     WebFileChooserCompletion* completion) {
3447   static const size_t kMaximumPendingFileChooseRequests = 4;
3448   if (file_chooser_completions_.size() > kMaximumPendingFileChooseRequests) {
3449     // This sanity check prevents too many file choose requests from getting
3450     // queued which could DoS the user. Getting these is most likely a
3451     // programming error (there are many ways to DoS the user so it's not
3452     // considered a "real" security check), either in JS requesting many file
3453     // choosers to pop up, or in a plugin.
3454     //
3455     // TODO(brettw) we might possibly want to require a user gesture to open
3456     // a file picker, which will address this issue in a better way.
3457     return false;
3458   }
3459
3460   file_chooser_completions_.push_back(linked_ptr<PendingFileChooser>(
3461       new PendingFileChooser(params, completion)));
3462   if (file_chooser_completions_.size() == 1) {
3463     // Actually show the browse dialog when this is the first request.
3464     Send(new ViewHostMsg_RunFileChooser(routing_id_, params));
3465   }
3466   return true;
3467 }
3468
3469 blink::WebSpeechRecognizer* RenderViewImpl::speechRecognizer() {
3470   if (!speech_recognition_dispatcher_)
3471     speech_recognition_dispatcher_ = new SpeechRecognitionDispatcher(this);
3472   return speech_recognition_dispatcher_;
3473 }
3474
3475 void RenderViewImpl::zoomLimitsChanged(double minimum_level,
3476                                        double maximum_level) {
3477   // Round the double to avoid returning incorrect minimum/maximum zoom
3478   // percentages.
3479   int minimum_percent = round(
3480       ZoomLevelToZoomFactor(minimum_level) * 100);
3481   int maximum_percent = round(
3482       ZoomLevelToZoomFactor(maximum_level) * 100);
3483
3484   Send(new ViewHostMsg_UpdateZoomLimits(
3485       routing_id_, minimum_percent, maximum_percent));
3486 }
3487
3488 void RenderViewImpl::zoomLevelChanged() {
3489   double zoom_level = webview()->zoomLevel();
3490
3491   // Do not send empty URLs to the browser when we are just setting the default
3492   // zoom level (from RendererPreferences) before the first navigation.
3493   if (!webview()->mainFrame()->document().url().isEmpty()) {
3494     // Tell the browser which url got zoomed so it can update the menu and the
3495     // saved values if necessary
3496     Send(new ViewHostMsg_DidZoomURL(
3497         routing_id_, zoom_level,
3498         GURL(webview()->mainFrame()->document().url())));
3499   }
3500 }
3501
3502 void RenderViewImpl::pageScaleFactorChanged() {
3503   if (!webview())
3504     return;
3505   bool page_scale_factor_is_one = webview()->pageScaleFactor() == 1;
3506   if (page_scale_factor_is_one == page_scale_factor_is_one_)
3507     return;
3508   page_scale_factor_is_one_ = page_scale_factor_is_one;
3509   Send(new ViewHostMsg_PageScaleFactorIsOneChanged(routing_id_,
3510                                                    page_scale_factor_is_one_));
3511 }
3512
3513 double RenderViewImpl::zoomLevelToZoomFactor(double zoom_level) const {
3514   return ZoomLevelToZoomFactor(zoom_level);
3515 }
3516
3517 double RenderViewImpl::zoomFactorToZoomLevel(double factor) const {
3518   return ZoomFactorToZoomLevel(factor);
3519 }
3520
3521 blink::WebPageVisibilityState RenderViewImpl::visibilityState() const {
3522   blink::WebPageVisibilityState current_state = is_hidden() ?
3523       blink::WebPageVisibilityStateHidden :
3524       blink::WebPageVisibilityStateVisible;
3525   blink::WebPageVisibilityState override_state = current_state;
3526   // TODO(jam): move this method to WebFrameClient.
3527   if (GetContentClient()->renderer()->
3528           ShouldOverridePageVisibilityState(main_render_frame_,
3529                                             &override_state))
3530     return override_state;
3531   return current_state;
3532 }
3533
3534 void RenderViewImpl::draggableRegionsChanged() {
3535   FOR_EACH_OBSERVER(
3536       RenderViewObserver,
3537       observers_,
3538       DraggableRegionsChanged(webview()->mainFrame()));
3539 }
3540
3541 #if defined(OS_ANDROID)
3542 WebContentDetectionResult RenderViewImpl::detectContentAround(
3543     const WebHitTestResult& touch_hit) {
3544   DCHECK(touch_hit.node().isTextNode());
3545
3546   // Process the position with all the registered content detectors until
3547   // a match is found. Priority is provided by their relative order.
3548   for (ContentDetectorList::const_iterator it = content_detectors_.begin();
3549       it != content_detectors_.end(); ++it) {
3550     ContentDetector::Result content = (*it)->FindTappedContent(touch_hit);
3551     if (content.valid) {
3552       return WebContentDetectionResult(content.content_boundaries,
3553           base::UTF8ToUTF16(content.text), content.intent_url);
3554     }
3555   }
3556   return WebContentDetectionResult();
3557 }
3558
3559 void RenderViewImpl::scheduleContentIntent(const WebURL& intent) {
3560   // Introduce a short delay so that the user can notice the content.
3561   base::MessageLoop::current()->PostDelayedTask(
3562       FROM_HERE,
3563       base::Bind(&RenderViewImpl::LaunchAndroidContentIntent,
3564                  AsWeakPtr(),
3565                  intent,
3566                  expected_content_intent_id_),
3567       base::TimeDelta::FromMilliseconds(kContentIntentDelayMilliseconds));
3568 }
3569
3570 void RenderViewImpl::cancelScheduledContentIntents() {
3571   ++expected_content_intent_id_;
3572 }
3573
3574 void RenderViewImpl::LaunchAndroidContentIntent(const GURL& intent,
3575                                                 size_t request_id) {
3576   if (request_id != expected_content_intent_id_)
3577     return;
3578
3579   // Remove the content highlighting if any.
3580   ScheduleComposite();
3581
3582   if (!intent.is_empty())
3583     Send(new ViewHostMsg_StartContentIntent(routing_id_, intent));
3584 }
3585
3586 bool RenderViewImpl::openDateTimeChooser(
3587     const blink::WebDateTimeChooserParams& params,
3588     blink::WebDateTimeChooserCompletion* completion) {
3589   // JavaScript may try to open a date time chooser while one is already open.
3590   if (date_time_picker_client_)
3591     return false;
3592   date_time_picker_client_.reset(
3593       new RendererDateTimePicker(this, params, completion));
3594   return date_time_picker_client_->Open();
3595 }
3596
3597 void RenderViewImpl::DismissDateTimeDialog() {
3598   DCHECK(date_time_picker_client_);
3599   date_time_picker_client_.reset(NULL);
3600 }
3601
3602 #endif  // defined(OS_ANDROID)
3603
3604 void RenderViewImpl::OnShowContextMenu(
3605     ui::MenuSourceType source_type, const gfx::Point& location) {
3606   context_menu_source_type_ = source_type;
3607   has_host_context_menu_location_ = true;
3608   host_context_menu_location_ = location;
3609   if (webview())
3610     webview()->showContextMenu();
3611   has_host_context_menu_location_ = false;
3612 }
3613
3614 void RenderViewImpl::OnEnableViewSourceMode() {
3615   if (!webview())
3616     return;
3617   WebFrame* main_frame = webview()->mainFrame();
3618   if (!main_frame)
3619     return;
3620   main_frame->enableViewSourceMode(true);
3621 }
3622
3623 #if defined(OS_ANDROID) || defined(USE_AURA)
3624 bool RenderViewImpl::didTapMultipleTargets(
3625     const WebSize& inner_viewport_offset,
3626     const WebRect& touch_rect,
3627     const WebVector<WebRect>& target_rects) {
3628   DCHECK(switches::IsLinkDisambiguationPopupEnabled());
3629
3630   // Never show a disambiguation popup when accessibility is enabled,
3631   // as this interferes with "touch exploration".
3632   AccessibilityMode accessibility_mode =
3633       GetMainRenderFrame()->accessibility_mode();
3634   bool matches_accessibility_mode_complete =
3635       (accessibility_mode & AccessibilityModeComplete) ==
3636           AccessibilityModeComplete;
3637   if (matches_accessibility_mode_complete)
3638     return false;
3639
3640   // The touch_rect, target_rects and zoom_rect are in the outer viewport
3641   // reference frame.
3642   gfx::Rect zoom_rect;
3643   float new_total_scale =
3644       DisambiguationPopupHelper::ComputeZoomAreaAndScaleFactor(
3645           touch_rect, target_rects, GetSize(),
3646           gfx::Rect(webview()->mainFrame()->visibleContentRect()).size(),
3647           device_scale_factor_ * webview()->pageScaleFactor(), &zoom_rect);
3648   if (!new_total_scale || zoom_rect.IsEmpty())
3649     return false;
3650
3651   bool handled = false;
3652   switch (renderer_preferences_.tap_multiple_targets_strategy) {
3653     case TAP_MULTIPLE_TARGETS_STRATEGY_ZOOM:
3654       handled = webview()->zoomToMultipleTargetsRect(zoom_rect);
3655       break;
3656     case TAP_MULTIPLE_TARGETS_STRATEGY_POPUP: {
3657       gfx::Size canvas_size =
3658           gfx::ToCeiledSize(gfx::ScaleSize(zoom_rect.size(), new_total_scale));
3659       cc::SharedBitmapManager* manager =
3660           RenderThreadImpl::current()->shared_bitmap_manager();
3661       scoped_ptr<cc::SharedBitmap> shared_bitmap =
3662           manager->AllocateSharedBitmap(canvas_size);
3663       CHECK(!!shared_bitmap);
3664       {
3665         SkBitmap bitmap;
3666         SkImageInfo info = SkImageInfo::MakeN32Premul(canvas_size.width(),
3667                                                       canvas_size.height());
3668         bitmap.installPixels(info, shared_bitmap->pixels(), info.minRowBytes());
3669         SkCanvas canvas(bitmap);
3670
3671         // TODO(trchen): Cleanup the device scale factor mess.
3672         // device scale will be applied in WebKit
3673         // --> zoom_rect doesn't include device scale,
3674         //     but WebKit will still draw on zoom_rect * device_scale_factor_
3675         canvas.scale(new_total_scale / device_scale_factor_,
3676                      new_total_scale / device_scale_factor_);
3677         canvas.translate(-zoom_rect.x() * device_scale_factor_,
3678                          -zoom_rect.y() * device_scale_factor_);
3679
3680         DCHECK(webwidget_->isAcceleratedCompositingActive());
3681         // TODO(aelias): The disambiguation popup should be composited so we
3682         // don't have to call this method.
3683         webwidget_->paintCompositedDeprecated(&canvas, zoom_rect);
3684       }
3685
3686       gfx::Rect zoom_rect_in_screen =
3687           zoom_rect - gfx::Vector2d(inner_viewport_offset.width,
3688                                     inner_viewport_offset.height);
3689
3690       gfx::Rect physical_window_zoom_rect = gfx::ToEnclosingRect(
3691           ClientRectToPhysicalWindowRect(gfx::RectF(zoom_rect_in_screen)));
3692
3693       Send(new ViewHostMsg_ShowDisambiguationPopup(routing_id_,
3694                                                    physical_window_zoom_rect,
3695                                                    canvas_size,
3696                                                    shared_bitmap->id()));
3697       cc::SharedBitmapId id = shared_bitmap->id();
3698       disambiguation_bitmaps_[id] = shared_bitmap.release();
3699       handled = true;
3700       break;
3701     }
3702     case TAP_MULTIPLE_TARGETS_STRATEGY_NONE:
3703       // No-op.
3704       break;
3705   }
3706
3707   return handled;
3708 }
3709 #endif  // defined(OS_ANDROID) || defined(USE_AURA)
3710
3711 unsigned RenderViewImpl::GetLocalSessionHistoryLengthForTesting() const {
3712   return history_list_length_;
3713 }
3714
3715 void RenderViewImpl::SetFocusAndActivateForTesting(bool enable) {
3716   if (enable) {
3717     if (has_focus())
3718       return;
3719     OnSetActive(true);
3720     OnSetFocus(true);
3721   } else {
3722     if (!has_focus())
3723       return;
3724     OnSetFocus(false);
3725     OnSetActive(false);
3726   }
3727 }
3728
3729 void RenderViewImpl::SetDeviceScaleFactorForTesting(float factor) {
3730   ViewMsg_Resize_Params params;
3731   params.screen_info = screen_info_;
3732   params.screen_info.deviceScaleFactor = factor;
3733   params.new_size = size();
3734   params.visible_viewport_size = visible_viewport_size_;
3735   params.physical_backing_size =
3736       gfx::ToCeiledSize(gfx::ScaleSize(size(), factor));
3737   params.top_controls_shrink_blink_size = false;
3738   params.top_controls_height = 0.f;
3739   params.resizer_rect = WebRect();
3740   params.is_fullscreen_granted = is_fullscreen_granted();
3741   params.display_mode = display_mode_;
3742   OnResize(params);
3743 }
3744
3745 void RenderViewImpl::SetDeviceColorProfileForTesting(
3746     const std::vector<char>& color_profile) {
3747   SetDeviceColorProfile(color_profile);
3748 }
3749
3750 void RenderViewImpl::ForceResizeForTesting(const gfx::Size& new_size) {
3751   gfx::Rect new_window_rect(rootWindowRect().x,
3752                             rootWindowRect().y,
3753                             new_size.width(),
3754                             new_size.height());
3755   SetWindowRectSynchronously(new_window_rect);
3756 }
3757
3758 void RenderViewImpl::UseSynchronousResizeModeForTesting(bool enable) {
3759   resizing_mode_selector_->set_is_synchronous_mode(enable);
3760 }
3761
3762 void RenderViewImpl::EnableAutoResizeForTesting(const gfx::Size& min_size,
3763                                                 const gfx::Size& max_size) {
3764   OnEnableAutoResize(min_size, max_size);
3765 }
3766
3767 void RenderViewImpl::DisableAutoResizeForTesting(const gfx::Size& new_size) {
3768   OnDisableAutoResize(new_size);
3769 }
3770
3771 void RenderViewImpl::OnReleaseDisambiguationPopupBitmap(
3772     const cc::SharedBitmapId& id) {
3773   BitmapMap::iterator it = disambiguation_bitmaps_.find(id);
3774   DCHECK(it != disambiguation_bitmaps_.end());
3775   delete it->second;
3776   disambiguation_bitmaps_.erase(it);
3777 }
3778
3779 void RenderViewImpl::DidCommitCompositorFrame() {
3780   RenderWidget::DidCommitCompositorFrame();
3781   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidCommitCompositorFrame());
3782 }
3783
3784 void RenderViewImpl::SendUpdateFaviconURL(const std::vector<FaviconURL>& urls) {
3785   if (!urls.empty())
3786     Send(new ViewHostMsg_UpdateFaviconURL(routing_id_, urls));
3787 }
3788
3789 void RenderViewImpl::DidStopLoadingIcons() {
3790   int icon_types = WebIconURL::TypeFavicon | WebIconURL::TypeTouchPrecomposed |
3791       WebIconURL::TypeTouch;
3792
3793   // Favicons matter only for the top-level frame. If it is a WebRemoteFrame,
3794   // just return early.
3795   if (webview()->mainFrame()->isWebRemoteFrame())
3796     return;
3797
3798   WebVector<WebIconURL> icon_urls =
3799       webview()->mainFrame()->iconURLs(icon_types);
3800
3801   std::vector<FaviconURL> urls;
3802   for (size_t i = 0; i < icon_urls.size(); i++) {
3803     WebURL url = icon_urls[i].iconURL();
3804     std::vector<gfx::Size> sizes;
3805     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
3806     if (!url.isEmpty())
3807       urls.push_back(
3808           FaviconURL(url, ToFaviconType(icon_urls[i].iconType()), sizes));
3809   }
3810   SendUpdateFaviconURL(urls);
3811 }
3812
3813 }  // namespace content