content/browser/frame_host/render_widget_host_view_guest.cc

   1 // Copyright 2014 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 "base/bind_helpers.h"
   6 #include "base/command_line.h"
   7 #include "base/logging.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "content/browser/browser_plugin/browser_plugin_guest.h"
  10 #include "content/browser/frame_host/render_widget_host_view_guest.h"
  11 #include "content/browser/renderer_host/render_view_host_impl.h"
  12 #include "content/common/browser_plugin/browser_plugin_messages.h"
  13 #include "content/common/frame_messages.h"
  14 #include "content/common/gpu/gpu_messages.h"
  15 #include "content/common/host_shared_bitmap_manager.h"
  16 #include "content/common/input/web_touch_event_traits.h"
  17 #include "content/common/view_messages.h"
  18 #include "content/common/webplugin_geometry.h"
  19 #include "content/public/common/content_switches.h"
  20 #include "skia/ext/platform_canvas.h"
  21 #include "third_party/WebKit/public/platform/WebScreenInfo.h"
  22
  23 #if defined(OS_MACOSX)
  24 #import "content/browser/renderer_host/render_widget_host_view_mac_dictionary_helper.h"
  25 #endif
  26
  27 #if defined(USE_AURA)
  28 #include "content/browser/renderer_host/ui_events_helper.h"
  29 #endif
  30
  31 namespace content {
  32
  33 namespace {
  34
  35 #if defined(USE_AURA)
  36 blink::WebGestureEvent CreateFlingCancelEvent(double time_stamp) {
  37   blink::WebGestureEvent gesture_event;
  38   gesture_event.timeStampSeconds = time_stamp;
  39   gesture_event.type = blink::WebGestureEvent::GestureFlingCancel;
  40   gesture_event.sourceDevice = blink::WebGestureEvent::Touchscreen;
  41   return gesture_event;
  42 }
  43 #endif  // defined(USE_AURA)
  44
  45 }  // namespace
  46
  47 RenderWidgetHostViewGuest::RenderWidgetHostViewGuest(
  48     RenderWidgetHost* widget_host,
  49     BrowserPluginGuest* guest,
  50     RenderWidgetHostViewBase* platform_view)
  51     : RenderWidgetHostViewChildFrame(widget_host),
  52       // |guest| is NULL during test.
  53       guest_(guest ? guest->AsWeakPtr() : base::WeakPtr<BrowserPluginGuest>()),
  54       platform_view_(platform_view) {
  55 #if defined(USE_AURA)
  56   gesture_recognizer_.reset(ui::GestureRecognizer::Create());
  57   gesture_recognizer_->AddGestureEventHelper(this);
  58 #endif  // defined(USE_AURA)
  59 }
  60
  61 RenderWidgetHostViewGuest::~RenderWidgetHostViewGuest() {
  62 #if defined(USE_AURA)
  63   gesture_recognizer_->RemoveGestureEventHelper(this);
  64 #endif  // defined(USE_AURA)
  65 }
  66
  67 void RenderWidgetHostViewGuest::WasShown() {
  68   // If the WebContents associated with us showed an interstitial page in the
  69   // beginning, the teardown path might call WasShown() while |host_| is in
  70   // the process of destruction. Avoid calling WasShown below in this case.
  71   // TODO(lazyboy): We shouldn't be showing interstitial pages in guests in the
  72   // first place: http://crbug.com/273089.
  73   //
  74   // |guest_| is NULL during test.
  75   if ((guest_ && guest_->is_in_destruction()) || !host_->is_hidden())
  76     return;
  77   host_->WasShown();
  78 }
  79
  80 void RenderWidgetHostViewGuest::WasHidden() {
  81   // |guest_| is NULL during test.
  82   if ((guest_ && guest_->is_in_destruction()) || host_->is_hidden())
  83     return;
  84   host_->WasHidden();
  85 }
  86
  87 void RenderWidgetHostViewGuest::SetSize(const gfx::Size& size) {
  88   size_ = size;
  89   host_->WasResized();
  90 }
  91
  92 void RenderWidgetHostViewGuest::SetBounds(const gfx::Rect& rect) {
  93   SetSize(rect.size());
  94 }
  95
  96 #if defined(USE_AURA)
  97 void RenderWidgetHostViewGuest::ProcessAckedTouchEvent(
  98     const TouchEventWithLatencyInfo& touch, InputEventAckState ack_result) {
  99   // TODO(fsamuel): Currently we will only take this codepath if the guest has
 100   // requested touch events. A better solution is to always forward touchpresses
 101   // to the embedder process to target a BrowserPlugin, and then route all
 102   // subsequent touch points of that touchdown to the appropriate guest until
 103   // that touch point is released.
 104   ScopedVector<ui::TouchEvent> events;
 105   if (!MakeUITouchEventsFromWebTouchEvents(touch, &events, LOCAL_COORDINATES))
 106     return;
 107
 108   ui::EventResult result = (ack_result ==
 109       INPUT_EVENT_ACK_STATE_CONSUMED) ? ui::ER_HANDLED : ui::ER_UNHANDLED;
 110   for (ScopedVector<ui::TouchEvent>::iterator iter = events.begin(),
 111       end = events.end(); iter != end; ++iter)  {
 112     scoped_ptr<ui::GestureRecognizer::Gestures> gestures;
 113     gestures.reset(gesture_recognizer_->ProcessTouchEventForGesture(
 114         *(*iter), result, this));
 115     ProcessGestures(gestures.get());
 116   }
 117 }
 118 #endif
 119
 120 gfx::Rect RenderWidgetHostViewGuest::GetViewBounds() const {
 121   if (!guest_)
 122     return gfx::Rect();
 123
 124   RenderWidgetHostViewBase* rwhv = GetGuestRenderWidgetHostView();
 125   gfx::Rect embedder_bounds;
 126   if (rwhv)
 127     embedder_bounds = rwhv->GetViewBounds();
 128   gfx::Rect shifted_rect = guest_->ToGuestRect(embedder_bounds);
 129   shifted_rect.set_width(size_.width());
 130   shifted_rect.set_height(size_.height());
 131   return shifted_rect;
 132 }
 133
 134 void RenderWidgetHostViewGuest::RenderProcessGone(
 135     base::TerminationStatus status,
 136     int error_code) {
 137   platform_view_->RenderProcessGone(status, error_code);
 138   // Destroy the guest view instance only, so we don't end up calling
 139   // platform_view_->Destroy().
 140   DestroyGuestView();
 141 }
 142
 143 void RenderWidgetHostViewGuest::Destroy() {
 144   // The RenderWidgetHost's destruction led here, so don't call it.
 145   DestroyGuestView();
 146
 147   platform_view_->Destroy();
 148 }
 149
 150 gfx::Size RenderWidgetHostViewGuest::GetPhysicalBackingSize() const {
 151   return RenderWidgetHostViewBase::GetPhysicalBackingSize();
 152 }
 153
 154 base::string16 RenderWidgetHostViewGuest::GetSelectedText() const {
 155   return platform_view_->GetSelectedText();
 156 }
 157
 158 void RenderWidgetHostViewGuest::SetTooltipText(
 159     const base::string16& tooltip_text) {
 160   platform_view_->SetTooltipText(tooltip_text);
 161 }
 162
 163 void RenderWidgetHostViewGuest::AcceleratedSurfaceBuffersSwapped(
 164     const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params,
 165     int gpu_host_id) {
 166   if (!guest_)
 167     return;
 168
 169   FrameMsg_BuffersSwapped_Params guest_params;
 170   guest_params.size = params.size;
 171   guest_params.mailbox = params.mailbox;
 172   guest_params.gpu_route_id = params.route_id;
 173   guest_params.gpu_host_id = gpu_host_id;
 174   guest_->SendMessageToEmbedder(
 175       new BrowserPluginMsg_BuffersSwapped(guest_->instance_id(),
 176                                           guest_params));
 177 }
 178
 179 void RenderWidgetHostViewGuest::AcceleratedSurfacePostSubBuffer(
 180     const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
 181     int gpu_host_id) {
 182   NOTREACHED();
 183 }
 184
 185 void RenderWidgetHostViewGuest::OnSwapCompositorFrame(
 186     uint32 output_surface_id,
 187     scoped_ptr<cc::CompositorFrame> frame) {
 188   if (!guest_)
 189     return;
 190
 191   if (!guest_->attached()) {
 192     // If the guest doesn't have an embedder then there's nothing to give the
 193     // the frame to.
 194     return;
 195   }
 196   base::SharedMemoryHandle software_frame_handle =
 197       base::SharedMemory::NULLHandle();
 198   if (frame->software_frame_data) {
 199     cc::SoftwareFrameData* frame_data = frame->software_frame_data.get();
 200     scoped_ptr<cc::SharedBitmap> bitmap =
 201         HostSharedBitmapManager::current()->GetSharedBitmapFromId(
 202             frame_data->size, frame_data->bitmap_id);
 203     if (!bitmap)
 204       return;
 205
 206     RenderWidgetHostView* embedder_rwhv =
 207         guest_->GetEmbedderRenderWidgetHostView();
 208     base::ProcessHandle embedder_pid =
 209         embedder_rwhv->GetRenderWidgetHost()->GetProcess()->GetHandle();
 210
 211     bitmap->memory()->ShareToProcess(embedder_pid, &software_frame_handle);
 212   }
 213
 214   FrameMsg_CompositorFrameSwapped_Params guest_params;
 215   frame->AssignTo(&guest_params.frame);
 216   guest_params.output_surface_id = output_surface_id;
 217   guest_params.producing_route_id = host_->GetRoutingID();
 218   guest_params.producing_host_id = host_->GetProcess()->GetID();
 219   guest_params.shared_memory_handle = software_frame_handle;
 220
 221   guest_->SendMessageToEmbedder(
 222       new BrowserPluginMsg_CompositorFrameSwapped(guest_->instance_id(),
 223                                                   guest_params));
 224 }
 225
 226 bool RenderWidgetHostViewGuest::OnMessageReceived(const IPC::Message& msg) {
 227   return platform_view_->OnMessageReceived(msg);
 228 }
 229
 230 void RenderWidgetHostViewGuest::InitAsChild(
 231     gfx::NativeView parent_view) {
 232   platform_view_->InitAsChild(parent_view);
 233 }
 234
 235 void RenderWidgetHostViewGuest::InitAsPopup(
 236     RenderWidgetHostView* parent_host_view, const gfx::Rect& pos) {
 237   // This should never get called.
 238   NOTREACHED();
 239 }
 240
 241 void RenderWidgetHostViewGuest::InitAsFullscreen(
 242     RenderWidgetHostView* reference_host_view) {
 243   // This should never get called.
 244   NOTREACHED();
 245 }
 246
 247 gfx::NativeView RenderWidgetHostViewGuest::GetNativeView() const {
 248   if (!guest_)
 249     return gfx::NativeView();
 250
 251   RenderWidgetHostView* rwhv = guest_->GetEmbedderRenderWidgetHostView();
 252   if (!rwhv)
 253     return gfx::NativeView();
 254   return rwhv->GetNativeView();
 255 }
 256
 257 gfx::NativeViewId RenderWidgetHostViewGuest::GetNativeViewId() const {
 258   if (!guest_)
 259     return static_cast<gfx::NativeViewId>(NULL);
 260
 261   RenderWidgetHostView* rwhv = guest_->GetEmbedderRenderWidgetHostView();
 262   if (!rwhv)
 263     return static_cast<gfx::NativeViewId>(NULL);
 264   return rwhv->GetNativeViewId();
 265 }
 266
 267 gfx::NativeViewAccessible RenderWidgetHostViewGuest::GetNativeViewAccessible() {
 268   if (!guest_)
 269     return gfx::NativeViewAccessible();
 270
 271   RenderWidgetHostView* rwhv = guest_->GetEmbedderRenderWidgetHostView();
 272   if (!rwhv)
 273     return gfx::NativeViewAccessible();
 274   return rwhv->GetNativeViewAccessible();
 275 }
 276
 277 void RenderWidgetHostViewGuest::MovePluginWindows(
 278     const std::vector<WebPluginGeometry>& moves) {
 279   platform_view_->MovePluginWindows(moves);
 280 }
 281
 282 void RenderWidgetHostViewGuest::UpdateCursor(const WebCursor& cursor) {
 283   platform_view_->UpdateCursor(cursor);
 284 }
 285
 286 void RenderWidgetHostViewGuest::SetIsLoading(bool is_loading) {
 287   platform_view_->SetIsLoading(is_loading);
 288 }
 289
 290 void RenderWidgetHostViewGuest::TextInputTypeChanged(
 291     ui::TextInputType type,
 292     ui::TextInputMode input_mode,
 293     bool can_compose_inline) {
 294   if (!guest_)
 295     return;
 296
 297   RenderWidgetHostViewBase* rwhv = GetGuestRenderWidgetHostView();
 298   if (!rwhv)
 299     return;
 300   // Forward the information to embedding RWHV.
 301   rwhv->TextInputTypeChanged(type, input_mode, can_compose_inline);
 302 }
 303
 304 void RenderWidgetHostViewGuest::ImeCancelComposition() {
 305   if (!guest_)
 306     return;
 307
 308   RenderWidgetHostViewBase* rwhv = GetGuestRenderWidgetHostView();
 309   if (!rwhv)
 310     return;
 311   // Forward the information to embedding RWHV.
 312   rwhv->ImeCancelComposition();
 313 }
 314
 315 #if defined(OS_MACOSX) || defined(USE_AURA)
 316 void RenderWidgetHostViewGuest::ImeCompositionRangeChanged(
 317     const gfx::Range& range,
 318     const std::vector<gfx::Rect>& character_bounds) {
 319   if (!guest_)
 320     return;
 321
 322   RenderWidgetHostViewBase* rwhv = GetGuestRenderWidgetHostView();
 323   if (!rwhv)
 324     return;
 325   std::vector<gfx::Rect> guest_character_bounds;
 326   for (size_t i = 0; i < character_bounds.size(); ++i) {
 327     gfx::Rect guest_rect = guest_->ToGuestRect(character_bounds[i]);
 328     guest_character_bounds.push_back(guest_rect);
 329   }
 330   // Forward the information to embedding RWHV.
 331   rwhv->ImeCompositionRangeChanged(range, guest_character_bounds);
 332 }
 333 #endif
 334
 335 void RenderWidgetHostViewGuest::SelectionChanged(const base::string16& text,
 336                                                  size_t offset,
 337                                                  const gfx::Range& range) {
 338   platform_view_->SelectionChanged(text, offset, range);
 339 }
 340
 341 void RenderWidgetHostViewGuest::SelectionBoundsChanged(
 342     const ViewHostMsg_SelectionBounds_Params& params) {
 343   if (!guest_)
 344     return;
 345
 346   RenderWidgetHostViewBase* rwhv = GetGuestRenderWidgetHostView();
 347   if (!rwhv)
 348     return;
 349   ViewHostMsg_SelectionBounds_Params guest_params(params);
 350   guest_params.anchor_rect = guest_->ToGuestRect(params.anchor_rect);
 351   guest_params.focus_rect = guest_->ToGuestRect(params.focus_rect);
 352   rwhv->SelectionBoundsChanged(guest_params);
 353 }
 354
 355 #if defined(OS_ANDROID)
 356 void RenderWidgetHostViewGuest::SelectionRootBoundsChanged(
 357     const gfx::Rect& bounds) {
 358   if (!guest_)
 359     return;
 360
 361   RenderWidgetHostViewBase* rwhv = GetGuestRenderWidgetHostView();
 362   if (!rwhv)
 363     return;
 364
 365   rwhv->SelectionRootBoundsChanged(guest_->ToGuestRect(bounds));
 366 }
 367 #endif
 368
 369 void RenderWidgetHostViewGuest::CopyFromCompositingSurface(
 370     const gfx::Rect& src_subrect,
 371     const gfx::Size& dst_size,
 372     const base::Callback<void(bool, const SkBitmap&)>& callback,
 373     const SkBitmap::Config config) {
 374   CHECK(guest_);
 375   guest_->CopyFromCompositingSurface(src_subrect, dst_size, callback);
 376 }
 377
 378 void RenderWidgetHostViewGuest::SetBackground(const SkBitmap& background) {
 379   platform_view_->SetBackground(background);
 380 }
 381
 382 void RenderWidgetHostViewGuest::SetScrollOffsetPinning(
 383     bool is_pinned_to_left, bool is_pinned_to_right) {
 384   platform_view_->SetScrollOffsetPinning(
 385       is_pinned_to_left, is_pinned_to_right);
 386 }
 387
 388 bool RenderWidgetHostViewGuest::LockMouse() {
 389   return platform_view_->LockMouse();
 390 }
 391
 392 void RenderWidgetHostViewGuest::UnlockMouse() {
 393   return platform_view_->UnlockMouse();
 394 }
 395
 396 void RenderWidgetHostViewGuest::GetScreenInfo(blink::WebScreenInfo* results) {
 397   if (!guest_)
 398     return;
 399   RenderWidgetHostViewBase* embedder_view = GetGuestRenderWidgetHostView();
 400   if (embedder_view)
 401     embedder_view->GetScreenInfo(results);
 402 }
 403
 404 #if defined(OS_MACOSX)
 405 void RenderWidgetHostViewGuest::SetActive(bool active) {
 406   platform_view_->SetActive(active);
 407 }
 408
 409 void RenderWidgetHostViewGuest::SetTakesFocusOnlyOnMouseDown(bool flag) {
 410   platform_view_->SetTakesFocusOnlyOnMouseDown(flag);
 411 }
 412
 413 void RenderWidgetHostViewGuest::SetWindowVisibility(bool visible) {
 414   platform_view_->SetWindowVisibility(visible);
 415 }
 416
 417 void RenderWidgetHostViewGuest::WindowFrameChanged() {
 418   platform_view_->WindowFrameChanged();
 419 }
 420
 421 void RenderWidgetHostViewGuest::ShowDefinitionForSelection() {
 422   if (!guest_)
 423     return;
 424
 425   gfx::Point origin;
 426   gfx::Rect guest_bounds = GetViewBounds();
 427   RenderWidgetHostView* rwhv = guest_->GetEmbedderRenderWidgetHostView();
 428   gfx::Rect embedder_bounds;
 429   if (rwhv)
 430     embedder_bounds = rwhv->GetViewBounds();
 431
 432   gfx::Vector2d guest_offset = gfx::Vector2d(
 433       // Horizontal offset of guest from embedder.
 434       guest_bounds.x() - embedder_bounds.x(),
 435       // Vertical offset from guest's top to embedder's bottom edge.
 436       embedder_bounds.bottom() - guest_bounds.y());
 437
 438   RenderWidgetHostViewMacDictionaryHelper helper(platform_view_);
 439   helper.SetTargetView(rwhv);
 440   helper.set_offset(guest_offset);
 441   helper.ShowDefinitionForSelection();
 442 }
 443
 444 bool RenderWidgetHostViewGuest::SupportsSpeech() const {
 445   return platform_view_->SupportsSpeech();
 446 }
 447
 448 void RenderWidgetHostViewGuest::SpeakSelection() {
 449   platform_view_->SpeakSelection();
 450 }
 451
 452 bool RenderWidgetHostViewGuest::IsSpeaking() const {
 453   return platform_view_->IsSpeaking();
 454 }
 455
 456 void RenderWidgetHostViewGuest::StopSpeaking() {
 457   platform_view_->StopSpeaking();
 458 }
 459
 460 bool RenderWidgetHostViewGuest::PostProcessEventForPluginIme(
 461     const NativeWebKeyboardEvent& event) {
 462   return false;
 463 }
 464
 465 #endif  // defined(OS_MACOSX)
 466
 467 #if defined(OS_ANDROID)
 468 void RenderWidgetHostViewGuest::ShowDisambiguationPopup(
 469     const gfx::Rect& target_rect,
 470     const SkBitmap& zoomed_bitmap) {
 471 }
 472
 473 void RenderWidgetHostViewGuest::LockCompositingSurface() {
 474 }
 475
 476 void RenderWidgetHostViewGuest::UnlockCompositingSurface() {
 477 }
 478 #endif  // defined(OS_ANDROID)
 479
 480 #if defined(OS_WIN)
 481 void RenderWidgetHostViewGuest::SetParentNativeViewAccessible(
 482     gfx::NativeViewAccessible accessible_parent) {
 483 }
 484
 485 gfx::NativeViewId RenderWidgetHostViewGuest::GetParentForWindowlessPlugin()
 486     const {
 487   return NULL;
 488 }
 489 #endif
 490
 491 void RenderWidgetHostViewGuest::DestroyGuestView() {
 492   host_->SetView(NULL);
 493   host_ = NULL;
 494   base::MessageLoop::current()->DeleteSoon(FROM_HERE, this);
 495 }
 496
 497 bool RenderWidgetHostViewGuest::CanDispatchToConsumer(
 498     ui::GestureConsumer* consumer) {
 499   CHECK_EQ(static_cast<RenderWidgetHostViewGuest*>(consumer), this);
 500   return true;
 501 }
 502
 503 void RenderWidgetHostViewGuest::DispatchPostponedGestureEvent(
 504     ui::GestureEvent* event) {
 505   ForwardGestureEventToRenderer(event);
 506 }
 507
 508 void RenderWidgetHostViewGuest::DispatchCancelTouchEvent(
 509     ui::TouchEvent* event) {
 510   if (!host_)
 511     return;
 512
 513   blink::WebTouchEvent cancel_event;
 514   // TODO(rbyers): This event has no touches in it.  Don't we need to know what
 515   // touches are currently active in order to cancel them all properly?
 516   WebTouchEventTraits::ResetType(blink::WebInputEvent::TouchCancel,
 517                                  event->time_stamp().InSecondsF(),
 518                                  &cancel_event);
 519
 520   host_->ForwardTouchEventWithLatencyInfo(cancel_event, *event->latency());
 521 }
 522
 523 bool RenderWidgetHostViewGuest::ForwardGestureEventToRenderer(
 524     ui::GestureEvent* gesture) {
 525 #if defined(USE_AURA)
 526   if (!host_)
 527     return false;
 528
 529   if ((gesture->type() == ui::ET_GESTURE_PINCH_BEGIN ||
 530       gesture->type() == ui::ET_GESTURE_PINCH_UPDATE ||
 531       gesture->type() == ui::ET_GESTURE_PINCH_END) && !pinch_zoom_enabled_) {
 532     return true;
 533   }
 534
 535   blink::WebGestureEvent web_gesture =
 536       MakeWebGestureEventFromUIEvent(*gesture);
 537   const gfx::Point& client_point = gesture->location();
 538   const gfx::Point& screen_point = gesture->location();
 539
 540   web_gesture.x = client_point.x();
 541   web_gesture.y = client_point.y();
 542   web_gesture.globalX = screen_point.x();
 543   web_gesture.globalY = screen_point.y();
 544
 545   if (web_gesture.type == blink::WebGestureEvent::Undefined)
 546     return false;
 547   if (web_gesture.type == blink::WebGestureEvent::GestureTapDown) {
 548     host_->ForwardGestureEvent(
 549         CreateFlingCancelEvent(gesture->time_stamp().InSecondsF()));
 550   }
 551   host_->ForwardGestureEvent(web_gesture);
 552   return true;
 553 #else
 554   return false;
 555 #endif
 556 }
 557
 558 void RenderWidgetHostViewGuest::ProcessGestures(
 559     ui::GestureRecognizer::Gestures* gestures) {
 560   if ((gestures == NULL) || gestures->empty())
 561     return;
 562   for (ui::GestureRecognizer::Gestures::iterator g_it = gestures->begin();
 563       g_it != gestures->end();
 564       ++g_it) {
 565     ForwardGestureEventToRenderer(*g_it);
 566   }
 567 }
 568
 569 SkBitmap::Config RenderWidgetHostViewGuest::PreferredReadbackFormat() {
 570   return SkBitmap::kARGB_8888_Config;
 571 }
 572
 573 RenderWidgetHostViewBase*
 574 RenderWidgetHostViewGuest::GetGuestRenderWidgetHostView() const {
 575   return static_cast<RenderWidgetHostViewBase*>(
 576       guest_->GetEmbedderRenderWidgetHostView());
 577 }
 578
 579 }  // namespace content