content/browser/renderer_host/render_widget_host_view_aura.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/browser/renderer_host/render_widget_host_view_aura.h"
   6
   7 #include "base/auto_reset.h"
   8 #include "base/basictypes.h"
   9 #include "base/bind.h"
  10 #include "base/callback_helpers.h"
  11 #include "base/command_line.h"
  12 #include "base/debug/trace_event.h"
  13 #include "base/logging.h"
  14 #include "base/message_loop/message_loop.h"
  15 #include "base/strings/string_number_conversions.h"
  16 #include "cc/layers/layer.h"
  17 #include "cc/output/copy_output_request.h"
  18 #include "cc/output/copy_output_result.h"
  19 #include "cc/resources/texture_mailbox.h"
  20 #include "cc/trees/layer_tree_settings.h"
  21 #include "content/browser/accessibility/browser_accessibility_manager.h"
  22 #include "content/browser/accessibility/browser_accessibility_state_impl.h"
  23 #include "content/browser/frame_host/frame_tree.h"
  24 #include "content/browser/frame_host/frame_tree_node.h"
  25 #include "content/browser/frame_host/render_frame_host_impl.h"
  26 #include "content/browser/gpu/compositor_util.h"
  27 #include "content/browser/renderer_host/compositor_resize_lock_aura.h"
  28 #include "content/browser/renderer_host/dip_util.h"
  29 #include "content/browser/renderer_host/input/synthetic_gesture_target_aura.h"
  30 #include "content/browser/renderer_host/overscroll_controller.h"
  31 #include "content/browser/renderer_host/render_view_host_delegate.h"
  32 #include "content/browser/renderer_host/render_view_host_delegate_view.h"
  33 #include "content/browser/renderer_host/render_view_host_impl.h"
  34 #include "content/browser/renderer_host/render_widget_host_impl.h"
  35 #include "content/browser/renderer_host/ui_events_helper.h"
  36 #include "content/browser/renderer_host/web_input_event_aura.h"
  37 #include "content/common/gpu/client/gl_helper.h"
  38 #include "content/common/gpu/gpu_messages.h"
  39 #include "content/common/view_messages.h"
  40 #include "content/public/browser/content_browser_client.h"
  41 #include "content/public/browser/overscroll_configuration.h"
  42 #include "content/public/browser/render_view_host.h"
  43 #include "content/public/browser/render_widget_host_view_frame_subscriber.h"
  44 #include "content/public/browser/user_metrics.h"
  45 #include "content/public/common/content_switches.h"
  46 #include "third_party/WebKit/public/platform/WebScreenInfo.h"
  47 #include "third_party/WebKit/public/web/WebCompositionUnderline.h"
  48 #include "third_party/WebKit/public/web/WebInputEvent.h"
  49 #include "ui/aura/client/aura_constants.h"
  50 #include "ui/aura/client/cursor_client.h"
  51 #include "ui/aura/client/cursor_client_observer.h"
  52 #include "ui/aura/client/focus_client.h"
  53 #include "ui/aura/client/screen_position_client.h"
  54 #include "ui/aura/client/window_tree_client.h"
  55 #include "ui/aura/env.h"
  56 #include "ui/aura/window.h"
  57 #include "ui/aura/window_event_dispatcher.h"
  58 #include "ui/aura/window_observer.h"
  59 #include "ui/aura/window_tracker.h"
  60 #include "ui/aura/window_tree_host.h"
  61 #include "ui/base/clipboard/scoped_clipboard_writer.h"
  62 #include "ui/base/hit_test.h"
  63 #include "ui/base/ime/input_method.h"
  64 #include "ui/base/ui_base_types.h"
  65 #include "ui/compositor/compositor_vsync_manager.h"
  66 #include "ui/compositor/dip_util.h"
  67 #include "ui/events/event.h"
  68 #include "ui/events/event_utils.h"
  69 #include "ui/events/gestures/gesture_recognizer.h"
  70 #include "ui/gfx/canvas.h"
  71 #include "ui/gfx/display.h"
  72 #include "ui/gfx/rect_conversions.h"
  73 #include "ui/gfx/screen.h"
  74 #include "ui/gfx/size_conversions.h"
  75 #include "ui/gfx/skia_util.h"
  76 #include "ui/wm/public/activation_client.h"
  77 #include "ui/wm/public/scoped_tooltip_disabler.h"
  78 #include "ui/wm/public/tooltip_client.h"
  79 #include "ui/wm/public/transient_window_client.h"
  80 #include "ui/wm/public/window_types.h"
  81
  82 #if defined(OS_WIN)
  83 #include "content/browser/accessibility/browser_accessibility_manager_win.h"
  84 #include "content/browser/accessibility/browser_accessibility_win.h"
  85 #include "content/browser/renderer_host/legacy_render_widget_host_win.h"
  86 #include "content/common/plugin_constants_win.h"
  87 #include "ui/base/win/hidden_window.h"
  88 #include "ui/gfx/gdi_util.h"
  89 #include "ui/gfx/win/dpi.h"
  90 #endif
  91
  92 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
  93 #include "content/common/input_messages.h"
  94 #include "ui/events/linux/text_edit_command_auralinux.h"
  95 #include "ui/events/linux/text_edit_key_bindings_delegate_auralinux.h"
  96 #endif
  97
  98 using gfx::RectToSkIRect;
  99 using gfx::SkIRectToRect;
 100
 101 using blink::WebScreenInfo;
 102 using blink::WebInputEvent;
 103 using blink::WebGestureEvent;
 104 using blink::WebTouchEvent;
 105
 106 namespace content {
 107
 108 namespace {
 109
 110 // In mouse lock mode, we need to prevent the (invisible) cursor from hitting
 111 // the border of the view, in order to get valid movement information. However,
 112 // forcing the cursor back to the center of the view after each mouse move
 113 // doesn't work well. It reduces the frequency of useful mouse move messages
 114 // significantly. Therefore, we move the cursor to the center of the view only
 115 // if it approaches the border. |kMouseLockBorderPercentage| specifies the width
 116 // of the border area, in percentage of the corresponding dimension.
 117 const int kMouseLockBorderPercentage = 15;
 118
 119 // When accelerated compositing is enabled and a widget resize is pending,
 120 // we delay further resizes of the UI. The following constant is the maximum
 121 // length of time that we should delay further UI resizes while waiting for a
 122 // resized frame from a renderer.
 123 const int kResizeLockTimeoutMs = 67;
 124
 125 #if defined(OS_WIN)
 126 // Used to associate a plugin HWND with its RenderWidgetHostViewAura instance.
 127 const wchar_t kWidgetOwnerProperty[] = L"RenderWidgetHostViewAuraOwner";
 128
 129 BOOL CALLBACK WindowDestroyingCallback(HWND window, LPARAM param) {
 130   RenderWidgetHostViewAura* widget =
 131       reinterpret_cast<RenderWidgetHostViewAura*>(param);
 132   if (GetProp(window, kWidgetOwnerProperty) == widget) {
 133     // Properties set on HWNDs must be removed to avoid leaks.
 134     RemoveProp(window, kWidgetOwnerProperty);
 135     RenderWidgetHostViewBase::DetachPluginWindowsCallback(window);
 136   }
 137   return TRUE;
 138 }
 139
 140 BOOL CALLBACK HideWindowsCallback(HWND window, LPARAM param) {
 141   RenderWidgetHostViewAura* widget =
 142       reinterpret_cast<RenderWidgetHostViewAura*>(param);
 143   if (GetProp(window, kWidgetOwnerProperty) == widget)
 144     SetParent(window, ui::GetHiddenWindow());
 145   return TRUE;
 146 }
 147
 148 BOOL CALLBACK ShowWindowsCallback(HWND window, LPARAM param) {
 149   RenderWidgetHostViewAura* widget =
 150       reinterpret_cast<RenderWidgetHostViewAura*>(param);
 151
 152   if (GetProp(window, kWidgetOwnerProperty) == widget &&
 153       widget->GetNativeView()->GetHost()) {
 154     HWND parent = widget->GetNativeView()->GetHost()->GetAcceleratedWidget();
 155     SetParent(window, parent);
 156   }
 157   return TRUE;
 158 }
 159
 160 struct CutoutRectsParams {
 161   RenderWidgetHostViewAura* widget;
 162   std::vector<gfx::Rect> cutout_rects;
 163   std::map<HWND, WebPluginGeometry>* geometry;
 164 };
 165
 166 // Used to update the region for the windowed plugin to draw in. We start with
 167 // the clip rect from the renderer, then remove the cutout rects from the
 168 // renderer, and then remove the transient windows from the root window and the
 169 // constrained windows from the parent window.
 170 BOOL CALLBACK SetCutoutRectsCallback(HWND window, LPARAM param) {
 171   CutoutRectsParams* params = reinterpret_cast<CutoutRectsParams*>(param);
 172
 173   if (GetProp(window, kWidgetOwnerProperty) == params->widget) {
 174     // First calculate the offset of this plugin from the root window, since
 175     // the cutouts are relative to the root window.
 176     HWND parent =
 177         params->widget->GetNativeView()->GetHost()->GetAcceleratedWidget();
 178     POINT offset;
 179     offset.x = offset.y = 0;
 180     MapWindowPoints(window, parent, &offset, 1);
 181
 182     // Now get the cached clip rect and cutouts for this plugin window that came
 183     // from the renderer.
 184     std::map<HWND, WebPluginGeometry>::iterator i = params->geometry->begin();
 185     while (i != params->geometry->end() &&
 186            i->second.window != window &&
 187            GetParent(i->second.window) != window) {
 188       ++i;
 189     }
 190
 191     if (i == params->geometry->end()) {
 192       NOTREACHED();
 193       return TRUE;
 194     }
 195
 196     HRGN hrgn = CreateRectRgn(i->second.clip_rect.x(),
 197                               i->second.clip_rect.y(),
 198                               i->second.clip_rect.right(),
 199                               i->second.clip_rect.bottom());
 200     // We start with the cutout rects that came from the renderer, then add the
 201     // ones that came from transient and constrained windows.
 202     std::vector<gfx::Rect> cutout_rects = i->second.cutout_rects;
 203     for (size_t i = 0; i < params->cutout_rects.size(); ++i) {
 204       gfx::Rect offset_cutout = params->cutout_rects[i];
 205       offset_cutout.Offset(-offset.x, -offset.y);
 206       cutout_rects.push_back(offset_cutout);
 207     }
 208     gfx::SubtractRectanglesFromRegion(hrgn, cutout_rects);
 209     // If we don't have any cutout rects then no point in messing with the
 210     // window region.
 211     if (cutout_rects.size())
 212       SetWindowRgn(window, hrgn, TRUE);
 213   }
 214   return TRUE;
 215 }
 216
 217 // A callback function for EnumThreadWindows to enumerate and dismiss
 218 // any owned popup windows.
 219 BOOL CALLBACK DismissOwnedPopups(HWND window, LPARAM arg) {
 220   const HWND toplevel_hwnd = reinterpret_cast<HWND>(arg);
 221
 222   if (::IsWindowVisible(window)) {
 223     const HWND owner = ::GetWindow(window, GW_OWNER);
 224     if (toplevel_hwnd == owner) {
 225       ::PostMessage(window, WM_CANCELMODE, 0, 0);
 226     }
 227   }
 228
 229   return TRUE;
 230 }
 231 #endif
 232
 233 void UpdateWebTouchEventAfterDispatch(blink::WebTouchEvent* event,
 234                                       blink::WebTouchPoint* point) {
 235   if (point->state != blink::WebTouchPoint::StateReleased &&
 236       point->state != blink::WebTouchPoint::StateCancelled)
 237     return;
 238
 239   const unsigned new_length = event->touchesLength - 1;
 240   // Work around a gcc 4.9 bug. crbug.com/392872
 241   if (new_length >= event->touchesLengthCap)
 242     return;
 243
 244   for (unsigned i = point - event->touches; i < new_length; ++i)
 245     event->touches[i] = event->touches[i + 1];
 246   event->touchesLength = new_length;
 247 }
 248
 249 bool CanRendererHandleEvent(const ui::MouseEvent* event) {
 250   if (event->type() == ui::ET_MOUSE_CAPTURE_CHANGED)
 251     return false;
 252
 253 #if defined(OS_WIN)
 254   // Renderer cannot handle WM_XBUTTON or NC events.
 255   switch (event->native_event().message) {
 256     case WM_XBUTTONDOWN:
 257     case WM_XBUTTONUP:
 258     case WM_XBUTTONDBLCLK:
 259     case WM_NCMOUSELEAVE:
 260     case WM_NCMOUSEMOVE:
 261     case WM_NCLBUTTONDOWN:
 262     case WM_NCLBUTTONUP:
 263     case WM_NCLBUTTONDBLCLK:
 264     case WM_NCRBUTTONDOWN:
 265     case WM_NCRBUTTONUP:
 266     case WM_NCRBUTTONDBLCLK:
 267     case WM_NCMBUTTONDOWN:
 268     case WM_NCMBUTTONUP:
 269     case WM_NCMBUTTONDBLCLK:
 270     case WM_NCXBUTTONDOWN:
 271     case WM_NCXBUTTONUP:
 272     case WM_NCXBUTTONDBLCLK:
 273       return false;
 274     default:
 275       break;
 276   }
 277 #elif defined(USE_X11)
 278   // Renderer only supports standard mouse buttons, so ignore programmable
 279   // buttons.
 280   switch (event->type()) {
 281     case ui::ET_MOUSE_PRESSED:
 282     case ui::ET_MOUSE_RELEASED:
 283       return event->IsAnyButton();
 284     default:
 285       break;
 286   }
 287 #endif
 288   return true;
 289 }
 290
 291 // We don't mark these as handled so that they're sent back to the
 292 // DefWindowProc so it can generate WM_APPCOMMAND as necessary.
 293 bool IsXButtonUpEvent(const ui::MouseEvent* event) {
 294 #if defined(OS_WIN)
 295   switch (event->native_event().message) {
 296     case WM_XBUTTONUP:
 297     case WM_NCXBUTTONUP:
 298       return true;
 299   }
 300 #endif
 301   return false;
 302 }
 303
 304 void GetScreenInfoForWindow(WebScreenInfo* results, aura::Window* window) {
 305   const gfx::Display display = window ?
 306       gfx::Screen::GetScreenFor(window)->GetDisplayNearestWindow(window) :
 307       gfx::Screen::GetScreenFor(window)->GetPrimaryDisplay();
 308   results->rect = display.bounds();
 309   results->availableRect = display.work_area();
 310   // TODO(derat|oshima): Don't hardcode this. Get this from display object.
 311   results->depth = 24;
 312   results->depthPerComponent = 8;
 313   results->deviceScaleFactor = display.device_scale_factor();
 314
 315   // The Display rotation and the WebScreenInfo orientation are not the same
 316   // angle. The former is the physical display rotation while the later is the
 317   // rotation required by the content to be shown properly on the screen, in
 318   // other words, relative to the physical display.
 319   results->orientationAngle = display.RotationAsDegree();
 320   if (results->orientationAngle == 90)
 321     results->orientationAngle = 270;
 322   else if (results->orientationAngle == 270)
 323     results->orientationAngle = 90;
 324
 325   results->orientationType =
 326       RenderWidgetHostViewBase::GetOrientationTypeForDesktop(display);
 327 }
 328
 329 bool PointerEventActivates(const ui::Event& event) {
 330   if (event.type() == ui::ET_MOUSE_PRESSED)
 331     return true;
 332
 333   if (event.type() == ui::ET_GESTURE_BEGIN) {
 334     const ui::GestureEvent& gesture =
 335         static_cast<const ui::GestureEvent&>(event);
 336     return gesture.details().touch_points() == 1;
 337   }
 338
 339   return false;
 340 }
 341
 342 }  // namespace
 343
 344 // We need to watch for mouse events outside a Web Popup or its parent
 345 // and dismiss the popup for certain events.
 346 class RenderWidgetHostViewAura::EventFilterForPopupExit
 347     : public ui::EventHandler {
 348  public:
 349   explicit EventFilterForPopupExit(RenderWidgetHostViewAura* rwhva)
 350       : rwhva_(rwhva) {
 351     DCHECK(rwhva_);
 352     aura::Env::GetInstance()->AddPreTargetHandler(this);
 353   }
 354
 355   virtual ~EventFilterForPopupExit() {
 356     aura::Env::GetInstance()->RemovePreTargetHandler(this);
 357   }
 358
 359   // Overridden from ui::EventHandler
 360   virtual void OnMouseEvent(ui::MouseEvent* event) override {
 361     rwhva_->ApplyEventFilterForPopupExit(event);
 362   }
 363
 364   virtual void OnTouchEvent(ui::TouchEvent* event) override {
 365     rwhva_->ApplyEventFilterForPopupExit(event);
 366   }
 367
 368  private:
 369   RenderWidgetHostViewAura* rwhva_;
 370
 371   DISALLOW_COPY_AND_ASSIGN(EventFilterForPopupExit);
 372 };
 373
 374 void RenderWidgetHostViewAura::ApplyEventFilterForPopupExit(
 375     ui::LocatedEvent* event) {
 376   if (in_shutdown_ || is_fullscreen_ || !event->target())
 377     return;
 378
 379   if (event->type() != ui::ET_MOUSE_PRESSED &&
 380       event->type() != ui::ET_TOUCH_PRESSED) {
 381     return;
 382   }
 383
 384   aura::Window* target = static_cast<aura::Window*>(event->target());
 385   if (target != window_ &&
 386       (!popup_parent_host_view_ ||
 387        target != popup_parent_host_view_->window_)) {
 388     // Note: popup_parent_host_view_ may be NULL when there are multiple
 389     // popup children per view. See: RenderWidgetHostViewAura::InitAsPopup().
 390     in_shutdown_ = true;
 391     host_->Shutdown();
 392   }
 393 }
 394
 395 // We have to implement the WindowObserver interface on a separate object
 396 // because clang doesn't like implementing multiple interfaces that have
 397 // methods with the same name. This object is owned by the
 398 // RenderWidgetHostViewAura.
 399 class RenderWidgetHostViewAura::WindowObserver : public aura::WindowObserver {
 400  public:
 401   explicit WindowObserver(RenderWidgetHostViewAura* view)
 402       : view_(view) {
 403     view_->window_->AddObserver(this);
 404   }
 405
 406   virtual ~WindowObserver() {
 407     view_->window_->RemoveObserver(this);
 408   }
 409
 410   // Overridden from aura::WindowObserver:
 411   virtual void OnWindowAddedToRootWindow(aura::Window* window) override {
 412     if (window == view_->window_)
 413       view_->AddedToRootWindow();
 414   }
 415
 416   virtual void OnWindowRemovingFromRootWindow(aura::Window* window,
 417                                               aura::Window* new_root) override {
 418     if (window == view_->window_)
 419       view_->RemovingFromRootWindow();
 420   }
 421
 422  private:
 423   RenderWidgetHostViewAura* view_;
 424
 425   DISALLOW_COPY_AND_ASSIGN(WindowObserver);
 426 };
 427
 428 ////////////////////////////////////////////////////////////////////////////////
 429 // RenderWidgetHostViewAura, public:
 430
 431 RenderWidgetHostViewAura::RenderWidgetHostViewAura(RenderWidgetHost* host,
 432                                                    bool is_guest_view_hack)
 433     : host_(RenderWidgetHostImpl::From(host)),
 434       window_(new aura::Window(this)),
 435       delegated_frame_host_(new DelegatedFrameHost(this)),
 436       in_shutdown_(false),
 437       in_bounds_changed_(false),
 438       is_fullscreen_(false),
 439       popup_parent_host_view_(NULL),
 440       popup_child_host_view_(NULL),
 441       is_loading_(false),
 442       text_input_type_(ui::TEXT_INPUT_TYPE_NONE),
 443       text_input_mode_(ui::TEXT_INPUT_MODE_DEFAULT),
 444       text_input_flags_(0),
 445       can_compose_inline_(true),
 446       has_composition_text_(false),
 447       accept_return_character_(false),
 448       last_swapped_software_frame_scale_factor_(1.f),
 449       paint_canvas_(NULL),
 450       synthetic_move_sent_(false),
 451       cursor_visibility_state_in_renderer_(UNKNOWN),
 452 #if defined(OS_WIN)
 453       legacy_render_widget_host_HWND_(NULL),
 454       legacy_window_destroyed_(false),
 455 #endif
 456       has_snapped_to_boundary_(false),
 457       touch_editing_client_(NULL),
 458       is_guest_view_hack_(is_guest_view_hack),
 459       weak_ptr_factory_(this) {
 460   if (!is_guest_view_hack_)
 461     host_->SetView(this);
 462
 463   window_observer_.reset(new WindowObserver(this));
 464   aura::client::SetTooltipText(window_, &tooltip_);
 465   aura::client::SetActivationDelegate(window_, this);
 466   aura::client::SetActivationChangeObserver(window_, this);
 467   aura::client::SetFocusChangeObserver(window_, this);
 468   window_->set_layer_owner_delegate(delegated_frame_host_.get());
 469   gfx::Screen::GetScreenFor(window_)->AddObserver(this);
 470
 471   bool overscroll_enabled = base::CommandLine::ForCurrentProcess()->
 472       GetSwitchValueASCII(switches::kOverscrollHistoryNavigation) != "0";
 473   SetOverscrollControllerEnabled(overscroll_enabled);
 474 }
 475
 476 ////////////////////////////////////////////////////////////////////////////////
 477 // RenderWidgetHostViewAura, RenderWidgetHostView implementation:
 478
 479 bool RenderWidgetHostViewAura::OnMessageReceived(
 480     const IPC::Message& message) {
 481   bool handled = true;
 482   IPC_BEGIN_MESSAGE_MAP(RenderWidgetHostViewAura, message)
 483     // TODO(kevers): Move to RenderWidgetHostViewImpl and consolidate IPC
 484     // messages for TextInput<State|Type>Changed. Corresponding code in
 485     // RenderWidgetHostViewAndroid should also be moved at the same time.
 486     IPC_MESSAGE_HANDLER(ViewHostMsg_TextInputStateChanged,
 487                         OnTextInputStateChanged)
 488     IPC_MESSAGE_UNHANDLED(handled = false)
 489   IPC_END_MESSAGE_MAP()
 490   return handled;
 491 }
 492
 493 void RenderWidgetHostViewAura::InitAsChild(
 494     gfx::NativeView parent_view) {
 495   window_->SetType(ui::wm::WINDOW_TYPE_CONTROL);
 496   window_->Init(aura::WINDOW_LAYER_SOLID_COLOR);
 497   window_->SetName("RenderWidgetHostViewAura");
 498   window_->layer()->SetColor(background_color_);
 499 }
 500
 501 void RenderWidgetHostViewAura::InitAsPopup(
 502     RenderWidgetHostView* parent_host_view,
 503     const gfx::Rect& bounds_in_screen) {
 504   popup_parent_host_view_ =
 505       static_cast<RenderWidgetHostViewAura*>(parent_host_view);
 506
 507   // TransientWindowClient may be NULL during tests.
 508   aura::client::TransientWindowClient* transient_window_client =
 509       aura::client::GetTransientWindowClient();
 510   RenderWidgetHostViewAura* old_child =
 511       popup_parent_host_view_->popup_child_host_view_;
 512   if (old_child) {
 513     // TODO(jhorwich): Allow multiple popup_child_host_view_ per view, or
 514     // similar mechanism to ensure a second popup doesn't cause the first one
 515     // to never get a chance to filter events. See crbug.com/160589.
 516     DCHECK(old_child->popup_parent_host_view_ == popup_parent_host_view_);
 517     if (transient_window_client) {
 518       transient_window_client->RemoveTransientChild(
 519         popup_parent_host_view_->window_, old_child->window_);
 520     }
 521     old_child->popup_parent_host_view_ = NULL;
 522   }
 523   popup_parent_host_view_->popup_child_host_view_ = this;
 524   window_->SetType(ui::wm::WINDOW_TYPE_MENU);
 525   window_->Init(aura::WINDOW_LAYER_SOLID_COLOR);
 526   window_->SetName("RenderWidgetHostViewAura");
 527   window_->layer()->SetColor(background_color_);
 528
 529   // Setting the transient child allows for the popup to get mouse events when
 530   // in a system modal dialog. Do this before calling ParentWindowWithContext
 531   // below so that the transient parent is visible to WindowTreeClient.
 532   // This fixes crbug.com/328593.
 533   if (transient_window_client) {
 534     transient_window_client->AddTransientChild(
 535         popup_parent_host_view_->window_, window_);
 536   }
 537
 538   aura::Window* root = popup_parent_host_view_->window_->GetRootWindow();
 539   aura::client::ParentWindowWithContext(window_, root, bounds_in_screen);
 540
 541   SetBounds(bounds_in_screen);
 542   Show();
 543   if (NeedsMouseCapture())
 544     window_->SetCapture();
 545
 546   event_filter_for_popup_exit_.reset(new EventFilterForPopupExit(this));
 547 }
 548
 549 void RenderWidgetHostViewAura::InitAsFullscreen(
 550     RenderWidgetHostView* reference_host_view) {
 551   is_fullscreen_ = true;
 552   window_->SetType(ui::wm::WINDOW_TYPE_NORMAL);
 553   window_->Init(aura::WINDOW_LAYER_SOLID_COLOR);
 554   window_->SetName("RenderWidgetHostViewAura");
 555   window_->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_FULLSCREEN);
 556   window_->layer()->SetColor(background_color_);
 557
 558   aura::Window* parent = NULL;
 559   gfx::Rect bounds;
 560   if (reference_host_view) {
 561     aura::Window* reference_window =
 562         static_cast<RenderWidgetHostViewAura*>(reference_host_view)->window_;
 563     if (reference_window) {
 564       host_tracker_.reset(new aura::WindowTracker);
 565       host_tracker_->Add(reference_window);
 566     }
 567     gfx::Display display = gfx::Screen::GetScreenFor(window_)->
 568         GetDisplayNearestWindow(reference_window);
 569     parent = reference_window->GetRootWindow();
 570     bounds = display.bounds();
 571   }
 572   aura::client::ParentWindowWithContext(window_, parent, bounds);
 573   Show();
 574   Focus();
 575 }
 576
 577 RenderWidgetHost* RenderWidgetHostViewAura::GetRenderWidgetHost() const {
 578   return host_;
 579 }
 580
 581 void RenderWidgetHostViewAura::WasShown() {
 582   DCHECK(host_);
 583   if (!host_->is_hidden())
 584     return;
 585
 586   bool has_saved_frame = delegated_frame_host_->HasSavedFrame();
 587   ui::LatencyInfo renderer_latency_info, browser_latency_info;
 588   if (has_saved_frame) {
 589     browser_latency_info.AddLatencyNumber(
 590         ui::TAB_SHOW_COMPONENT, host_->GetLatencyComponentId(), 0);
 591   } else {
 592     renderer_latency_info.AddLatencyNumber(
 593         ui::TAB_SHOW_COMPONENT, host_->GetLatencyComponentId(), 0);
 594   }
 595   host_->WasShown(renderer_latency_info);
 596
 597   aura::Window* root = window_->GetRootWindow();
 598   if (root) {
 599     aura::client::CursorClient* cursor_client =
 600         aura::client::GetCursorClient(root);
 601     if (cursor_client)
 602       NotifyRendererOfCursorVisibilityState(cursor_client->IsCursorVisible());
 603   }
 604
 605   delegated_frame_host_->WasShown(browser_latency_info);
 606
 607 #if defined(OS_WIN)
 608   if (legacy_render_widget_host_HWND_) {
 609     // Reparent the legacy Chrome_RenderWidgetHostHWND window to the parent
 610     // window before reparenting any plugins. This ensures that the plugin
 611     // windows stay on top of the child Zorder in the parent and receive
 612     // mouse events, etc.
 613     legacy_render_widget_host_HWND_->UpdateParent(
 614         GetNativeView()->GetHost()->GetAcceleratedWidget());
 615     legacy_render_widget_host_HWND_->SetBounds(
 616         window_->GetBoundsInRootWindow());
 617   }
 618   LPARAM lparam = reinterpret_cast<LPARAM>(this);
 619   EnumChildWindows(ui::GetHiddenWindow(), ShowWindowsCallback, lparam);
 620 #endif
 621 }
 622
 623 void RenderWidgetHostViewAura::WasHidden() {
 624   if (!host_ || host_->is_hidden())
 625     return;
 626   host_->WasHidden();
 627   delegated_frame_host_->WasHidden();
 628
 629 #if defined(OS_WIN)
 630   constrained_rects_.clear();
 631   aura::WindowTreeHost* host = window_->GetHost();
 632   if (host) {
 633     HWND parent = host->GetAcceleratedWidget();
 634     LPARAM lparam = reinterpret_cast<LPARAM>(this);
 635     EnumChildWindows(parent, HideWindowsCallback, lparam);
 636     // We reparent the legacy Chrome_RenderWidgetHostHWND window to the global
 637     // hidden window on the same lines as Windowed plugin windows.
 638     if (legacy_render_widget_host_HWND_)
 639       legacy_render_widget_host_HWND_->UpdateParent(ui::GetHiddenWindow());
 640   }
 641 #endif
 642 }
 643
 644 void RenderWidgetHostViewAura::SetSize(const gfx::Size& size) {
 645   // For a SetSize operation, we don't care what coordinate system the origin
 646   // of the window is in, it's only important to make sure that the origin
 647   // remains constant after the operation.
 648   InternalSetBounds(gfx::Rect(window_->bounds().origin(), size));
 649 }
 650
 651 void RenderWidgetHostViewAura::SetBounds(const gfx::Rect& rect) {
 652   gfx::Point relative_origin(rect.origin());
 653
 654   // RenderWidgetHostViewAura::SetBounds() takes screen coordinates, but
 655   // Window::SetBounds() takes parent coordinates, so do the conversion here.
 656   aura::Window* root = window_->GetRootWindow();
 657   if (root) {
 658     aura::client::ScreenPositionClient* screen_position_client =
 659         aura::client::GetScreenPositionClient(root);
 660     if (screen_position_client) {
 661       screen_position_client->ConvertPointFromScreen(
 662           window_->parent(), &relative_origin);
 663     }
 664   }
 665
 666   InternalSetBounds(gfx::Rect(relative_origin, rect.size()));
 667 }
 668
 669 gfx::Vector2dF RenderWidgetHostViewAura::GetLastScrollOffset() const {
 670   return last_scroll_offset_;
 671 }
 672
 673 gfx::NativeView RenderWidgetHostViewAura::GetNativeView() const {
 674   return window_;
 675 }
 676
 677 gfx::NativeViewId RenderWidgetHostViewAura::GetNativeViewId() const {
 678 #if defined(OS_WIN)
 679   aura::WindowTreeHost* host = window_->GetHost();
 680   if (host)
 681     return reinterpret_cast<gfx::NativeViewId>(host->GetAcceleratedWidget());
 682 #endif
 683   return static_cast<gfx::NativeViewId>(NULL);
 684 }
 685
 686 gfx::NativeViewAccessible RenderWidgetHostViewAura::GetNativeViewAccessible() {
 687 #if defined(OS_WIN)
 688   aura::WindowTreeHost* host = window_->GetHost();
 689   if (!host)
 690     return static_cast<gfx::NativeViewAccessible>(NULL);
 691   HWND hwnd = host->GetAcceleratedWidget();
 692   BrowserAccessibilityManager* manager =
 693       host_->GetOrCreateRootBrowserAccessibilityManager();
 694   if (manager)
 695     return manager->GetRoot()->ToBrowserAccessibilityWin();
 696 #endif
 697
 698   NOTIMPLEMENTED();
 699   return static_cast<gfx::NativeViewAccessible>(NULL);
 700 }
 701
 702 ui::TextInputClient* RenderWidgetHostViewAura::GetTextInputClient() {
 703   return this;
 704 }
 705
 706 void RenderWidgetHostViewAura::SetKeyboardFocus() {
 707 #if defined(OS_WIN)
 708   if (CanFocus()) {
 709     aura::WindowTreeHost* host = window_->GetHost();
 710     if (host)
 711       ::SetFocus(host->GetAcceleratedWidget());
 712   }
 713 #endif
 714 }
 715
 716 RenderFrameHostImpl* RenderWidgetHostViewAura::GetFocusedFrame() {
 717   if (!host_->IsRenderView())
 718     return NULL;
 719   RenderViewHost* rvh = RenderViewHost::From(host_);
 720   FrameTreeNode* focused_frame =
 721       rvh->GetDelegate()->GetFrameTree()->GetFocusedFrame();
 722   if (!focused_frame)
 723     return NULL;
 724
 725   return focused_frame->current_frame_host();
 726 }
 727
 728 void RenderWidgetHostViewAura::MovePluginWindows(
 729     const std::vector<WebPluginGeometry>& plugin_window_moves) {
 730 #if defined(OS_WIN)
 731   // We need to clip the rectangle to the tab's viewport, otherwise we will draw
 732   // over the browser UI.
 733   if (!window_->GetRootWindow()) {
 734     DCHECK(plugin_window_moves.empty());
 735     return;
 736   }
 737   HWND parent = window_->GetHost()->GetAcceleratedWidget();
 738   gfx::Rect view_bounds = window_->GetBoundsInRootWindow();
 739   std::vector<WebPluginGeometry> moves = plugin_window_moves;
 740
 741   gfx::Rect view_port(view_bounds.size());
 742
 743   for (size_t i = 0; i < moves.size(); ++i) {
 744     gfx::Rect clip(moves[i].clip_rect);
 745     gfx::Vector2d view_port_offset(
 746         moves[i].window_rect.OffsetFromOrigin());
 747     clip.Offset(view_port_offset);
 748     clip.Intersect(view_port);
 749     clip.Offset(-view_port_offset);
 750     moves[i].clip_rect = clip;
 751
 752     moves[i].window_rect.Offset(view_bounds.OffsetFromOrigin());
 753
 754     plugin_window_moves_[moves[i].window] = moves[i];
 755
 756     // constrained_rects_ are relative to the root window. We want to convert
 757     // them to be relative to the plugin window.
 758     for (size_t j = 0; j < constrained_rects_.size(); ++j) {
 759       gfx::Rect offset_cutout = constrained_rects_[j];
 760       offset_cutout -= moves[i].window_rect.OffsetFromOrigin();
 761       moves[i].cutout_rects.push_back(offset_cutout);
 762     }
 763   }
 764
 765   MovePluginWindowsHelper(parent, moves);
 766
 767   // Make sure each plugin window (or its wrapper if it exists) has a pointer to
 768   // |this|.
 769   for (size_t i = 0; i < moves.size(); ++i) {
 770     HWND window = moves[i].window;
 771     if (GetParent(window) != parent) {
 772       window = GetParent(window);
 773     }
 774     if (!GetProp(window, kWidgetOwnerProperty))
 775       SetProp(window, kWidgetOwnerProperty, this);
 776   }
 777 #endif  // defined(OS_WIN)
 778 }
 779
 780 void RenderWidgetHostViewAura::Focus() {
 781   // Make sure we have a FocusClient before attempting to Focus(). In some
 782   // situations we may not yet be in a valid Window hierarchy (such as reloading
 783   // after out of memory discarded the tab).
 784   aura::client::FocusClient* client = aura::client::GetFocusClient(window_);
 785   if (client)
 786     window_->Focus();
 787 }
 788
 789 void RenderWidgetHostViewAura::Blur() {
 790   window_->Blur();
 791 }
 792
 793 bool RenderWidgetHostViewAura::HasFocus() const {
 794   return window_->HasFocus();
 795 }
 796
 797 bool RenderWidgetHostViewAura::IsSurfaceAvailableForCopy() const {
 798   return delegated_frame_host_->CanCopyToBitmap();
 799 }
 800
 801 void RenderWidgetHostViewAura::Show() {
 802   window_->Show();
 803   WasShown();
 804 #if defined(OS_WIN)
 805   if (legacy_render_widget_host_HWND_)
 806     legacy_render_widget_host_HWND_->Show();
 807 #endif
 808 }
 809
 810 void RenderWidgetHostViewAura::Hide() {
 811   window_->Hide();
 812   WasHidden();
 813 #if defined(OS_WIN)
 814   if (legacy_render_widget_host_HWND_)
 815     legacy_render_widget_host_HWND_->Hide();
 816 #endif
 817 }
 818
 819 bool RenderWidgetHostViewAura::IsShowing() {
 820   return window_->IsVisible();
 821 }
 822
 823 gfx::Rect RenderWidgetHostViewAura::GetViewBounds() const {
 824   return window_->GetBoundsInScreen();
 825 }
 826
 827 void RenderWidgetHostViewAura::SetBackgroundColor(SkColor color) {
 828   RenderWidgetHostViewBase::SetBackgroundColor(color);
 829   bool opaque = GetBackgroundOpaque();
 830   host_->SetBackgroundOpaque(opaque);
 831   window_->layer()->SetFillsBoundsOpaquely(opaque);
 832   window_->layer()->SetColor(color);
 833 }
 834
 835 gfx::Size RenderWidgetHostViewAura::GetVisibleViewportSize() const {
 836   gfx::Rect requested_rect(GetRequestedRendererSize());
 837   requested_rect.Inset(insets_);
 838   return requested_rect.size();
 839 }
 840
 841 void RenderWidgetHostViewAura::SetInsets(const gfx::Insets& insets) {
 842   if (insets != insets_) {
 843     insets_ = insets;
 844     host_->WasResized();
 845   }
 846 }
 847
 848 void RenderWidgetHostViewAura::UpdateCursor(const WebCursor& cursor) {
 849   current_cursor_ = cursor;
 850   const gfx::Display display = gfx::Screen::GetScreenFor(window_)->
 851       GetDisplayNearestWindow(window_);
 852   current_cursor_.SetDisplayInfo(display);
 853   UpdateCursorIfOverSelf();
 854 }
 855
 856 void RenderWidgetHostViewAura::SetIsLoading(bool is_loading) {
 857   is_loading_ = is_loading;
 858   UpdateCursorIfOverSelf();
 859 }
 860
 861 void RenderWidgetHostViewAura::TextInputTypeChanged(
 862     ui::TextInputType type,
 863     ui::TextInputMode input_mode,
 864     bool can_compose_inline,
 865     int flags) {
 866   if (text_input_type_ != type ||
 867       text_input_mode_ != input_mode ||
 868       can_compose_inline_ != can_compose_inline ||
 869       text_input_flags_ != flags) {
 870     text_input_type_ = type;
 871     text_input_mode_ = input_mode;
 872     can_compose_inline_ = can_compose_inline;
 873     text_input_flags_ = flags;
 874     if (GetInputMethod())
 875       GetInputMethod()->OnTextInputTypeChanged(this);
 876     if (touch_editing_client_)
 877       touch_editing_client_->OnTextInputTypeChanged(text_input_type_);
 878   }
 879 }
 880
 881 void RenderWidgetHostViewAura::OnTextInputStateChanged(
 882     const ViewHostMsg_TextInputState_Params& params) {
 883   text_input_flags_ = params.flags;
 884   if (params.show_ime_if_needed && params.type != ui::TEXT_INPUT_TYPE_NONE) {
 885     if (GetInputMethod())
 886       GetInputMethod()->ShowImeIfNeeded();
 887   }
 888 }
 889
 890 void RenderWidgetHostViewAura::ImeCancelComposition() {
 891   if (GetInputMethod())
 892     GetInputMethod()->CancelComposition(this);
 893   has_composition_text_ = false;
 894 }
 895
 896 void RenderWidgetHostViewAura::ImeCompositionRangeChanged(
 897     const gfx::Range& range,
 898     const std::vector<gfx::Rect>& character_bounds) {
 899   composition_character_bounds_ = character_bounds;
 900 }
 901
 902 void RenderWidgetHostViewAura::RenderProcessGone(base::TerminationStatus status,
 903                                                  int error_code) {
 904   UpdateCursorIfOverSelf();
 905   Destroy();
 906 }
 907
 908 void RenderWidgetHostViewAura::Destroy() {
 909   // Beware, this function is not called on all destruction paths. It will
 910   // implicitly end up calling ~RenderWidgetHostViewAura though, so all
 911   // destruction/cleanup code should happen there, not here.
 912   in_shutdown_ = true;
 913   delete window_;
 914 }
 915
 916 void RenderWidgetHostViewAura::SetTooltipText(
 917     const base::string16& tooltip_text) {
 918   tooltip_ = tooltip_text;
 919   aura::Window* root_window = window_->GetRootWindow();
 920   aura::client::TooltipClient* tooltip_client =
 921       aura::client::GetTooltipClient(root_window);
 922   if (tooltip_client) {
 923     tooltip_client->UpdateTooltip(window_);
 924     // Content tooltips should be visible indefinitely.
 925     tooltip_client->SetTooltipShownTimeout(window_, 0);
 926   }
 927 }
 928
 929 void RenderWidgetHostViewAura::SelectionChanged(const base::string16& text,
 930                                                 size_t offset,
 931                                                 const gfx::Range& range) {
 932   RenderWidgetHostViewBase::SelectionChanged(text, offset, range);
 933
 934 #if defined(USE_X11) && !defined(OS_CHROMEOS)
 935   if (text.empty() || range.is_empty())
 936     return;
 937   size_t pos = range.GetMin() - offset;
 938   size_t n = range.length();
 939
 940   DCHECK(pos + n <= text.length()) << "The text can not fully cover range.";
 941   if (pos >= text.length()) {
 942     NOTREACHED() << "The text can not cover range.";
 943     return;
 944   }
 945
 946   // Set the CLIPBOARD_TYPE_SELECTION to the ui::Clipboard.
 947   ui::ScopedClipboardWriter clipboard_writer(ui::CLIPBOARD_TYPE_SELECTION);
 948   clipboard_writer.WriteText(text.substr(pos, n));
 949 #endif  // defined(USE_X11) && !defined(OS_CHROMEOS)
 950 }
 951
 952 gfx::Size RenderWidgetHostViewAura::GetRequestedRendererSize() const {
 953   return delegated_frame_host_->GetRequestedRendererSize();
 954 }
 955
 956 void RenderWidgetHostViewAura::SelectionBoundsChanged(
 957     const ViewHostMsg_SelectionBounds_Params& params) {
 958   if (selection_anchor_rect_ == params.anchor_rect &&
 959       selection_focus_rect_ == params.focus_rect)
 960     return;
 961
 962   selection_anchor_rect_ = params.anchor_rect;
 963   selection_focus_rect_ = params.focus_rect;
 964
 965   if (GetInputMethod())
 966     GetInputMethod()->OnCaretBoundsChanged(this);
 967
 968   if (touch_editing_client_) {
 969     touch_editing_client_->OnSelectionOrCursorChanged(selection_anchor_rect_,
 970         selection_focus_rect_);
 971   }
 972 }
 973
 974 void RenderWidgetHostViewAura::CopyFromCompositingSurface(
 975     const gfx::Rect& src_subrect,
 976     const gfx::Size& dst_size,
 977     CopyFromCompositingSurfaceCallback& callback,
 978     const SkColorType color_type) {
 979   delegated_frame_host_->CopyFromCompositingSurface(
 980       src_subrect, dst_size, callback, color_type);
 981 }
 982
 983 void RenderWidgetHostViewAura::CopyFromCompositingSurfaceToVideoFrame(
 984       const gfx::Rect& src_subrect,
 985       const scoped_refptr<media::VideoFrame>& target,
 986       const base::Callback<void(bool)>& callback) {
 987   delegated_frame_host_->CopyFromCompositingSurfaceToVideoFrame(
 988       src_subrect, target, callback);
 989 }
 990
 991 bool RenderWidgetHostViewAura::CanCopyToVideoFrame() const {
 992   return delegated_frame_host_->CanCopyToVideoFrame();
 993 }
 994
 995 bool RenderWidgetHostViewAura::CanSubscribeFrame() const {
 996   return delegated_frame_host_->CanSubscribeFrame();
 997 }
 998
 999 void RenderWidgetHostViewAura::BeginFrameSubscription(
1000     scoped_ptr<RenderWidgetHostViewFrameSubscriber> subscriber) {
1001   delegated_frame_host_->BeginFrameSubscription(subscriber.Pass());
1002 }
1003
1004 void RenderWidgetHostViewAura::EndFrameSubscription() {
1005   delegated_frame_host_->EndFrameSubscription();
1006 }
1007
1008 #if defined(OS_WIN)
1009 bool RenderWidgetHostViewAura::UsesNativeWindowFrame() const {
1010   return (legacy_render_widget_host_HWND_ != NULL);
1011 }
1012
1013 void RenderWidgetHostViewAura::UpdateConstrainedWindowRects(
1014     const std::vector<gfx::Rect>& rects) {
1015   // Check this before setting constrained_rects_, so that next time they're set
1016   // and we have a root window we don't early return.
1017   if (!window_->GetHost())
1018     return;
1019
1020   if (rects == constrained_rects_)
1021     return;
1022
1023   constrained_rects_ = rects;
1024
1025   HWND parent = window_->GetHost()->GetAcceleratedWidget();
1026   CutoutRectsParams params;
1027   params.widget = this;
1028   params.cutout_rects = constrained_rects_;
1029   params.geometry = &plugin_window_moves_;
1030   LPARAM lparam = reinterpret_cast<LPARAM>(&params);
1031   EnumChildWindows(parent, SetCutoutRectsCallback, lparam);
1032 }
1033
1034 void RenderWidgetHostViewAura::UpdateMouseLockRegion() {
1035   // Clip the cursor if chrome is running on regular desktop.
1036   if (gfx::Screen::GetScreenFor(window_) == gfx::Screen::GetNativeScreen()) {
1037     RECT window_rect = window_->GetBoundsInScreen().ToRECT();
1038     ::ClipCursor(&window_rect);
1039   }
1040 }
1041
1042 void RenderWidgetHostViewAura::OnLegacyWindowDestroyed() {
1043   legacy_render_widget_host_HWND_ = NULL;
1044   legacy_window_destroyed_ = true;
1045 }
1046 #endif
1047
1048 void RenderWidgetHostViewAura::OnSwapCompositorFrame(
1049     uint32 output_surface_id,
1050     scoped_ptr<cc::CompositorFrame> frame) {
1051   TRACE_EVENT0("content", "RenderWidgetHostViewAura::OnSwapCompositorFrame");
1052
1053   last_scroll_offset_ = frame->metadata.root_scroll_offset;
1054   if (frame->delegated_frame_data) {
1055     delegated_frame_host_->SwapDelegatedFrame(
1056         output_surface_id,
1057         frame->delegated_frame_data.Pass(),
1058         frame->metadata.device_scale_factor,
1059         frame->metadata.latency_info);
1060     return;
1061   }
1062
1063   if (frame->software_frame_data) {
1064     DLOG(ERROR) << "Unable to use software frame in aura";
1065     RecordAction(
1066         base::UserMetricsAction("BadMessageTerminate_SharedMemoryAura"));
1067     host_->GetProcess()->ReceivedBadMessage();
1068     return;
1069   }
1070 }
1071
1072 void RenderWidgetHostViewAura::DidStopFlinging() {
1073   if (touch_editing_client_)
1074     touch_editing_client_->DidStopFlinging();
1075 }
1076
1077 #if defined(OS_WIN)
1078 void RenderWidgetHostViewAura::SetParentNativeViewAccessible(
1079     gfx::NativeViewAccessible accessible_parent) {
1080 }
1081
1082 gfx::NativeViewId RenderWidgetHostViewAura::GetParentForWindowlessPlugin()
1083     const {
1084   if (legacy_render_widget_host_HWND_) {
1085     return reinterpret_cast<gfx::NativeViewId>(
1086         legacy_render_widget_host_HWND_->hwnd());
1087   }
1088   return NULL;
1089 }
1090 #endif
1091
1092 bool RenderWidgetHostViewAura::HasAcceleratedSurface(
1093     const gfx::Size& desired_size) {
1094   // Aura doesn't use GetBackingStore for accelerated pages, so it doesn't
1095   // matter what is returned here as GetBackingStore is the only caller of this
1096   // method. TODO(jbates) implement this if other Aura code needs it.
1097   return false;
1098 }
1099
1100 void RenderWidgetHostViewAura::GetScreenInfo(WebScreenInfo* results) {
1101   GetScreenInfoForWindow(results, window_->GetRootWindow() ? window_ : NULL);
1102 }
1103
1104 gfx::Rect RenderWidgetHostViewAura::GetBoundsInRootWindow() {
1105   aura::Window* top_level = window_->GetToplevelWindow();
1106   gfx::Rect bounds(top_level->GetBoundsInScreen());
1107
1108 #if defined(OS_WIN)
1109   // TODO(zturner,iyengar): This will break when we remove support for NPAPI and
1110   // remove the legacy hwnd, so a better fix will need to be decided when that
1111   // happens.
1112   if (UsesNativeWindowFrame()) {
1113     // aura::Window doesn't take into account non-client area of native windows
1114     // (e.g. HWNDs), so for that case ask Windows directly what the bounds are.
1115     aura::WindowTreeHost* host = top_level->GetHost();
1116     if (!host)
1117       return top_level->GetBoundsInScreen();
1118     RECT window_rect = {0};
1119     HWND hwnd = host->GetAcceleratedWidget();
1120     ::GetWindowRect(hwnd, &window_rect);
1121     bounds = gfx::Rect(window_rect);
1122
1123     // Maximized windows are outdented from the work area by the frame thickness
1124     // even though this "frame" is not painted.  This confuses code (and people)
1125     // that think of a maximized window as corresponding exactly to the work
1126     // area.  Correct for this by subtracting the frame thickness back off.
1127     if (::IsZoomed(hwnd)) {
1128       bounds.Inset(GetSystemMetrics(SM_CXSIZEFRAME),
1129                    GetSystemMetrics(SM_CYSIZEFRAME));
1130
1131       bounds.Inset(GetSystemMetrics(SM_CXPADDEDBORDER),
1132                    GetSystemMetrics(SM_CXPADDEDBORDER));
1133     }
1134   }
1135
1136   bounds = gfx::win::ScreenToDIPRect(bounds);
1137 #endif
1138
1139   return bounds;
1140 }
1141
1142 void RenderWidgetHostViewAura::WheelEventAck(
1143     const blink::WebMouseWheelEvent& event,
1144     InputEventAckState ack_result) {
1145   if (overscroll_controller_) {
1146     overscroll_controller_->ReceivedEventACK(
1147         event, (INPUT_EVENT_ACK_STATE_CONSUMED == ack_result));
1148   }
1149 }
1150
1151 void RenderWidgetHostViewAura::GestureEventAck(
1152     const blink::WebGestureEvent& event,
1153     InputEventAckState ack_result) {
1154   if (touch_editing_client_)
1155     touch_editing_client_->GestureEventAck(event.type);
1156
1157   if (overscroll_controller_) {
1158     overscroll_controller_->ReceivedEventACK(
1159         event, (INPUT_EVENT_ACK_STATE_CONSUMED == ack_result));
1160   }
1161 }
1162
1163 void RenderWidgetHostViewAura::ProcessAckedTouchEvent(
1164     const TouchEventWithLatencyInfo& touch, InputEventAckState ack_result) {
1165   ScopedVector<ui::TouchEvent> events;
1166   if (!MakeUITouchEventsFromWebTouchEvents(touch, &events,
1167                                            SCREEN_COORDINATES))
1168     return;
1169
1170   aura::WindowTreeHost* host = window_->GetHost();
1171   // |host| is NULL during tests.
1172   if (!host)
1173     return;
1174
1175   ui::EventResult result = (ack_result ==
1176       INPUT_EVENT_ACK_STATE_CONSUMED) ? ui::ER_HANDLED : ui::ER_UNHANDLED;
1177   for (ScopedVector<ui::TouchEvent>::iterator iter = events.begin(),
1178       end = events.end(); iter != end; ++iter) {
1179     host->dispatcher()->ProcessedTouchEvent((*iter), window_, result);
1180   }
1181 }
1182
1183 scoped_ptr<SyntheticGestureTarget>
1184 RenderWidgetHostViewAura::CreateSyntheticGestureTarget() {
1185   return scoped_ptr<SyntheticGestureTarget>(
1186       new SyntheticGestureTargetAura(host_));
1187 }
1188
1189 InputEventAckState RenderWidgetHostViewAura::FilterInputEvent(
1190     const blink::WebInputEvent& input_event) {
1191   bool consumed = false;
1192   if (input_event.type == WebInputEvent::GestureFlingStart) {
1193     const WebGestureEvent& gesture_event =
1194         static_cast<const WebGestureEvent&>(input_event);
1195     // Zero-velocity touchpad flings are an Aura-specific signal that the
1196     // touchpad scroll has ended, and should not be forwarded to the renderer.
1197     if (gesture_event.sourceDevice == blink::WebGestureDeviceTouchpad &&
1198         !gesture_event.data.flingStart.velocityX &&
1199         !gesture_event.data.flingStart.velocityY) {
1200       consumed = true;
1201     }
1202   }
1203
1204   if (overscroll_controller_)
1205     consumed |= overscroll_controller_->WillHandleEvent(input_event);
1206
1207   return consumed && !WebTouchEvent::isTouchEventType(input_event.type)
1208              ? INPUT_EVENT_ACK_STATE_CONSUMED
1209              : INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
1210 }
1211
1212 BrowserAccessibilityManager*
1213 RenderWidgetHostViewAura::CreateBrowserAccessibilityManager(
1214     BrowserAccessibilityDelegate* delegate) {
1215   BrowserAccessibilityManager* manager = NULL;
1216 #if defined(OS_WIN)
1217   manager = new BrowserAccessibilityManagerWin(
1218       BrowserAccessibilityManagerWin::GetEmptyDocument(), delegate);
1219 #else
1220   manager = BrowserAccessibilityManager::Create(
1221       BrowserAccessibilityManager::GetEmptyDocument(), delegate);
1222 #endif
1223   return manager;
1224 }
1225
1226 gfx::AcceleratedWidget
1227 RenderWidgetHostViewAura::AccessibilityGetAcceleratedWidget() {
1228 #if defined(OS_WIN)
1229   if (legacy_render_widget_host_HWND_)
1230     return legacy_render_widget_host_HWND_->hwnd();
1231 #endif
1232   return gfx::kNullAcceleratedWidget;
1233 }
1234
1235 gfx::NativeViewAccessible
1236 RenderWidgetHostViewAura::AccessibilityGetNativeViewAccessible() {
1237 #if defined(OS_WIN)
1238   if (legacy_render_widget_host_HWND_)
1239     return legacy_render_widget_host_HWND_->window_accessible();
1240 #endif
1241   return NULL;
1242
1243 }
1244
1245 gfx::GLSurfaceHandle RenderWidgetHostViewAura::GetCompositingSurface() {
1246   return ImageTransportFactory::GetInstance()->GetSharedSurfaceHandle();
1247 }
1248
1249 void RenderWidgetHostViewAura::ShowDisambiguationPopup(
1250     const gfx::Rect& rect_pixels,
1251     const SkBitmap& zoomed_bitmap) {
1252   // |target_rect| is provided in pixels, not DIPs. So we convert it to DIPs
1253   // by scaling it by the inverse of the device scale factor.
1254   gfx::RectF screen_target_rect_f(rect_pixels);
1255   screen_target_rect_f.Scale(1.0f / current_device_scale_factor_);
1256   disambiguation_target_rect_ = gfx::ToEnclosingRect(screen_target_rect_f);
1257
1258   float scale = static_cast<float>(zoomed_bitmap.width()) /
1259                 static_cast<float>(rect_pixels.width());
1260   gfx::Size zoomed_size(gfx::ToCeiledSize(
1261       gfx::ScaleSize(disambiguation_target_rect_.size(), scale)));
1262
1263   // Save of a copy of the |last_scroll_offset_| for comparison when the copy
1264   // callback fires, to ensure that we haven't scrolled.
1265   disambiguation_scroll_offset_ = last_scroll_offset_;
1266
1267   CopyFromCompositingSurface(
1268       disambiguation_target_rect_,
1269       zoomed_size,
1270       base::Bind(&RenderWidgetHostViewAura::DisambiguationPopupRendered,
1271           base::internal::SupportsWeakPtrBase::StaticAsWeakPtr
1272               <RenderWidgetHostViewAura>(this)),
1273       kN32_SkColorType);
1274 }
1275
1276 void RenderWidgetHostViewAura::DisambiguationPopupRendered(
1277     bool success,
1278     const SkBitmap& result) {
1279   if (!success || disambiguation_scroll_offset_ != last_scroll_offset_)
1280     return;
1281
1282   // Use RenderViewHostDelegate to get to the WebContentsViewAura, which will
1283   // actually show the delegate.
1284   RenderViewHostDelegate* delegate = NULL;
1285   if (host_->IsRenderView())
1286     delegate = RenderViewHost::From(host_)->GetDelegate();
1287   RenderViewHostDelegateView* delegate_view = NULL;
1288   if (delegate)
1289     delegate_view = delegate->GetDelegateView();
1290   if (delegate_view) {
1291     delegate_view->ShowDisambiguationPopup(
1292         disambiguation_target_rect_,
1293         result,
1294         base::Bind(&RenderWidgetHostViewAura::ProcessDisambiguationGesture,
1295             base::internal::SupportsWeakPtrBase::StaticAsWeakPtr
1296                 <RenderWidgetHostViewAura>(this)),
1297         base::Bind(&RenderWidgetHostViewAura::ProcessDisambiguationMouse,
1298             base::internal::SupportsWeakPtrBase::StaticAsWeakPtr
1299                 <RenderWidgetHostViewAura>(this)));
1300   }
1301 }
1302
1303 void RenderWidgetHostViewAura::HideDisambiguationPopup() {
1304   RenderViewHostDelegate* delegate = NULL;
1305   if (host_->IsRenderView())
1306     delegate = RenderViewHost::From(host_)->GetDelegate();
1307   RenderViewHostDelegateView* delegate_view = NULL;
1308   if (delegate)
1309     delegate_view = delegate->GetDelegateView();
1310   if (delegate_view)
1311     delegate_view->HideDisambiguationPopup();
1312 }
1313
1314 void RenderWidgetHostViewAura::ProcessDisambiguationGesture(
1315     ui::GestureEvent* event) {
1316   blink::WebGestureEvent web_gesture = content::MakeWebGestureEvent(event);
1317   // If we fail to make a WebGestureEvent that is a Tap from the provided event,
1318   // don't forward it to Blink.
1319   if (web_gesture.type < blink::WebInputEvent::Type::GestureTap ||
1320       web_gesture.type > blink::WebInputEvent::Type::GestureTapCancel)
1321     return;
1322
1323   host_->ForwardGestureEvent(web_gesture);
1324 }
1325
1326 void RenderWidgetHostViewAura::ProcessDisambiguationMouse(
1327     ui::MouseEvent* event) {
1328   blink::WebMouseEvent web_mouse = content::MakeWebMouseEvent(event);
1329   host_->ForwardMouseEvent(web_mouse);
1330 }
1331
1332 bool RenderWidgetHostViewAura::LockMouse() {
1333   aura::Window* root_window = window_->GetRootWindow();
1334   if (!root_window)
1335     return false;
1336
1337   if (mouse_locked_)
1338     return true;
1339
1340   mouse_locked_ = true;
1341 #if !defined(OS_WIN)
1342   window_->SetCapture();
1343 #else
1344   UpdateMouseLockRegion();
1345 #endif
1346   aura::client::CursorClient* cursor_client =
1347       aura::client::GetCursorClient(root_window);
1348   if (cursor_client) {
1349     cursor_client->HideCursor();
1350     cursor_client->LockCursor();
1351   }
1352
1353   if (ShouldMoveToCenter()) {
1354     synthetic_move_sent_ = true;
1355     window_->MoveCursorTo(gfx::Rect(window_->bounds().size()).CenterPoint());
1356   }
1357   tooltip_disabler_.reset(new aura::client::ScopedTooltipDisabler(root_window));
1358   return true;
1359 }
1360
1361 void RenderWidgetHostViewAura::UnlockMouse() {
1362   tooltip_disabler_.reset();
1363
1364   aura::Window* root_window = window_->GetRootWindow();
1365   if (!mouse_locked_ || !root_window)
1366     return;
1367
1368   mouse_locked_ = false;
1369
1370 #if !defined(OS_WIN)
1371   window_->ReleaseCapture();
1372 #else
1373   ::ClipCursor(NULL);
1374 #endif
1375   window_->MoveCursorTo(unlocked_mouse_position_);
1376   aura::client::CursorClient* cursor_client =
1377       aura::client::GetCursorClient(root_window);
1378   if (cursor_client) {
1379     cursor_client->UnlockCursor();
1380     cursor_client->ShowCursor();
1381   }
1382
1383   host_->LostMouseLock();
1384 }
1385
1386 ////////////////////////////////////////////////////////////////////////////////
1387 // RenderWidgetHostViewAura, ui::TextInputClient implementation:
1388 void RenderWidgetHostViewAura::SetCompositionText(
1389     const ui::CompositionText& composition) {
1390   if (!host_)
1391     return;
1392
1393   // TODO(suzhe): convert both renderer_host and renderer to use
1394   // ui::CompositionText.
1395   std::vector<blink::WebCompositionUnderline> underlines;
1396   underlines.reserve(composition.underlines.size());
1397   for (std::vector<ui::CompositionUnderline>::const_iterator it =
1398            composition.underlines.begin();
1399        it != composition.underlines.end(); ++it) {
1400     underlines.push_back(
1401         blink::WebCompositionUnderline(static_cast<unsigned>(it->start_offset),
1402                                        static_cast<unsigned>(it->end_offset),
1403                                        it->color,
1404                                        it->thick,
1405                                        it->background_color));
1406   }
1407
1408   // TODO(suzhe): due to a bug of webkit, we can't use selection range with
1409   // composition string. See: https://bugs.webkit.org/show_bug.cgi?id=37788
1410   host_->ImeSetComposition(composition.text, underlines,
1411                            composition.selection.end(),
1412                            composition.selection.end());
1413
1414   has_composition_text_ = !composition.text.empty();
1415 }
1416
1417 void RenderWidgetHostViewAura::ConfirmCompositionText() {
1418   if (host_ && has_composition_text_) {
1419     host_->ImeConfirmComposition(base::string16(), gfx::Range::InvalidRange(),
1420                                  false);
1421   }
1422   has_composition_text_ = false;
1423 }
1424
1425 void RenderWidgetHostViewAura::ClearCompositionText() {
1426   if (host_ && has_composition_text_)
1427     host_->ImeCancelComposition();
1428   has_composition_text_ = false;
1429 }
1430
1431 void RenderWidgetHostViewAura::InsertText(const base::string16& text) {
1432   DCHECK(text_input_type_ != ui::TEXT_INPUT_TYPE_NONE);
1433   if (host_)
1434     host_->ImeConfirmComposition(text, gfx::Range::InvalidRange(), false);
1435   has_composition_text_ = false;
1436 }
1437
1438 void RenderWidgetHostViewAura::InsertChar(base::char16 ch, int flags) {
1439   if (popup_child_host_view_ && popup_child_host_view_->NeedsInputGrab()) {
1440     popup_child_host_view_->InsertChar(ch, flags);
1441     return;
1442   }
1443
1444   // Ignore character messages for VKEY_RETURN sent on CTRL+M. crbug.com/315547
1445   if (host_ && (accept_return_character_ || ch != ui::VKEY_RETURN)) {
1446     double now = ui::EventTimeForNow().InSecondsF();
1447     // Send a blink::WebInputEvent::Char event to |host_|.
1448     NativeWebKeyboardEvent webkit_event(ui::ET_KEY_PRESSED,
1449                                         true /* is_char */,
1450                                         ch,
1451                                         flags,
1452                                         now);
1453     ForwardKeyboardEvent(webkit_event);
1454   }
1455 }
1456
1457 gfx::NativeWindow RenderWidgetHostViewAura::GetAttachedWindow() const {
1458   return window_;
1459 }
1460
1461 ui::TextInputType RenderWidgetHostViewAura::GetTextInputType() const {
1462   return text_input_type_;
1463 }
1464
1465 ui::TextInputMode RenderWidgetHostViewAura::GetTextInputMode() const {
1466   return text_input_mode_;
1467 }
1468
1469 int RenderWidgetHostViewAura::GetTextInputFlags() const {
1470   return text_input_flags_;
1471 }
1472
1473 bool RenderWidgetHostViewAura::CanComposeInline() const {
1474   return can_compose_inline_;
1475 }
1476
1477 gfx::Rect RenderWidgetHostViewAura::ConvertRectToScreen(
1478     const gfx::Rect& rect) const {
1479   gfx::Point origin = rect.origin();
1480   gfx::Point end = gfx::Point(rect.right(), rect.bottom());
1481
1482   aura::Window* root_window = window_->GetRootWindow();
1483   if (!root_window)
1484     return rect;
1485   aura::client::ScreenPositionClient* screen_position_client =
1486       aura::client::GetScreenPositionClient(root_window);
1487   if (!screen_position_client)
1488     return rect;
1489   screen_position_client->ConvertPointToScreen(window_, &origin);
1490   screen_position_client->ConvertPointToScreen(window_, &end);
1491   return gfx::Rect(origin.x(),
1492                    origin.y(),
1493                    end.x() - origin.x(),
1494                    end.y() - origin.y());
1495 }
1496
1497 gfx::Rect RenderWidgetHostViewAura::ConvertRectFromScreen(
1498     const gfx::Rect& rect) const {
1499   gfx::Point origin = rect.origin();
1500   gfx::Point end = gfx::Point(rect.right(), rect.bottom());
1501
1502   aura::Window* root_window = window_->GetRootWindow();
1503   if (root_window) {
1504     aura::client::ScreenPositionClient* screen_position_client =
1505         aura::client::GetScreenPositionClient(root_window);
1506     screen_position_client->ConvertPointFromScreen(window_, &origin);
1507     screen_position_client->ConvertPointFromScreen(window_, &end);
1508     return gfx::Rect(origin.x(),
1509                      origin.y(),
1510                      end.x() - origin.x(),
1511                      end.y() - origin.y());
1512   }
1513
1514   return rect;
1515 }
1516
1517 gfx::Rect RenderWidgetHostViewAura::GetCaretBounds() const {
1518   const gfx::Rect rect =
1519       gfx::UnionRects(selection_anchor_rect_, selection_focus_rect_);
1520   return ConvertRectToScreen(rect);
1521 }
1522
1523 bool RenderWidgetHostViewAura::GetCompositionCharacterBounds(
1524     uint32 index,
1525     gfx::Rect* rect) const {
1526   DCHECK(rect);
1527   if (index >= composition_character_bounds_.size())
1528     return false;
1529   *rect = ConvertRectToScreen(composition_character_bounds_[index]);
1530   return true;
1531 }
1532
1533 bool RenderWidgetHostViewAura::HasCompositionText() const {
1534   return has_composition_text_;
1535 }
1536
1537 bool RenderWidgetHostViewAura::GetTextRange(gfx::Range* range) const {
1538   range->set_start(selection_text_offset_);
1539   range->set_end(selection_text_offset_ + selection_text_.length());
1540   return true;
1541 }
1542
1543 bool RenderWidgetHostViewAura::GetCompositionTextRange(
1544     gfx::Range* range) const {
1545   // TODO(suzhe): implement this method when fixing http://crbug.com/55130.
1546   NOTIMPLEMENTED();
1547   return false;
1548 }
1549
1550 bool RenderWidgetHostViewAura::GetSelectionRange(gfx::Range* range) const {
1551   range->set_start(selection_range_.start());
1552   range->set_end(selection_range_.end());
1553   return true;
1554 }
1555
1556 bool RenderWidgetHostViewAura::SetSelectionRange(const gfx::Range& range) {
1557   // TODO(suzhe): implement this method when fixing http://crbug.com/55130.
1558   NOTIMPLEMENTED();
1559   return false;
1560 }
1561
1562 bool RenderWidgetHostViewAura::DeleteRange(const gfx::Range& range) {
1563   // TODO(suzhe): implement this method when fixing http://crbug.com/55130.
1564   NOTIMPLEMENTED();
1565   return false;
1566 }
1567
1568 bool RenderWidgetHostViewAura::GetTextFromRange(
1569     const gfx::Range& range,
1570     base::string16* text) const {
1571   gfx::Range selection_text_range(selection_text_offset_,
1572       selection_text_offset_ + selection_text_.length());
1573
1574   if (!selection_text_range.Contains(range)) {
1575     text->clear();
1576     return false;
1577   }
1578   if (selection_text_range.EqualsIgnoringDirection(range)) {
1579     // Avoid calling substr whose performance is low.
1580     *text = selection_text_;
1581   } else {
1582     *text = selection_text_.substr(
1583         range.GetMin() - selection_text_offset_,
1584         range.length());
1585   }
1586   return true;
1587 }
1588
1589 void RenderWidgetHostViewAura::OnInputMethodChanged() {
1590   if (!host_)
1591     return;
1592
1593   if (GetInputMethod())
1594     host_->SetInputMethodActive(GetInputMethod()->IsActive());
1595
1596   // TODO(suzhe): implement the newly added “locale” property of HTML DOM
1597   // TextEvent.
1598 }
1599
1600 bool RenderWidgetHostViewAura::ChangeTextDirectionAndLayoutAlignment(
1601       base::i18n::TextDirection direction) {
1602   if (!host_)
1603     return false;
1604   host_->UpdateTextDirection(
1605       direction == base::i18n::RIGHT_TO_LEFT ?
1606       blink::WebTextDirectionRightToLeft :
1607       blink::WebTextDirectionLeftToRight);
1608   host_->NotifyTextDirection();
1609   return true;
1610 }
1611
1612 void RenderWidgetHostViewAura::ExtendSelectionAndDelete(
1613     size_t before, size_t after) {
1614   RenderFrameHostImpl* rfh = GetFocusedFrame();
1615   if (rfh)
1616     rfh->ExtendSelectionAndDelete(before, after);
1617 }
1618
1619 void RenderWidgetHostViewAura::EnsureCaretInRect(const gfx::Rect& rect) {
1620   gfx::Rect intersected_rect(
1621       gfx::IntersectRects(rect, window_->GetBoundsInScreen()));
1622
1623   if (intersected_rect.IsEmpty())
1624     return;
1625
1626   host_->ScrollFocusedEditableNodeIntoRect(
1627       ConvertRectFromScreen(intersected_rect));
1628 }
1629
1630 void RenderWidgetHostViewAura::OnCandidateWindowShown() {
1631   host_->CandidateWindowShown();
1632 }
1633
1634 void RenderWidgetHostViewAura::OnCandidateWindowUpdated() {
1635   host_->CandidateWindowUpdated();
1636 }
1637
1638 void RenderWidgetHostViewAura::OnCandidateWindowHidden() {
1639   host_->CandidateWindowHidden();
1640 }
1641
1642 bool RenderWidgetHostViewAura::IsEditingCommandEnabled(int command_id) {
1643   return false;
1644 }
1645
1646 void RenderWidgetHostViewAura::ExecuteEditingCommand(int command_id) {
1647 }
1648
1649 ////////////////////////////////////////////////////////////////////////////////
1650 // RenderWidgetHostViewAura, gfx::DisplayObserver implementation:
1651
1652 void RenderWidgetHostViewAura::OnDisplayAdded(
1653     const gfx::Display& new_display) {
1654 }
1655
1656 void RenderWidgetHostViewAura::OnDisplayRemoved(
1657     const gfx::Display& old_display) {
1658 }
1659
1660 void RenderWidgetHostViewAura::OnDisplayMetricsChanged(
1661     const gfx::Display& display, uint32_t metrics) {
1662   // The screen info should be updated regardless of the metric change.
1663   gfx::Screen* screen = gfx::Screen::GetScreenFor(window_);
1664   if (display.id() == screen->GetDisplayNearestWindow(window_).id()) {
1665     UpdateScreenInfo(window_);
1666     current_cursor_.SetDisplayInfo(display);
1667     UpdateCursorIfOverSelf();
1668   }
1669 }
1670
1671 ////////////////////////////////////////////////////////////////////////////////
1672 // RenderWidgetHostViewAura, aura::WindowDelegate implementation:
1673
1674 gfx::Size RenderWidgetHostViewAura::GetMinimumSize() const {
1675   return gfx::Size();
1676 }
1677
1678 gfx::Size RenderWidgetHostViewAura::GetMaximumSize() const {
1679   return gfx::Size();
1680 }
1681
1682 void RenderWidgetHostViewAura::OnBoundsChanged(const gfx::Rect& old_bounds,
1683                                                const gfx::Rect& new_bounds) {
1684   base::AutoReset<bool> in_bounds_changed(&in_bounds_changed_, true);
1685   // We care about this whenever RenderWidgetHostViewAura is not owned by a
1686   // WebContentsViewAura since changes to the Window's bounds need to be
1687   // messaged to the renderer.  WebContentsViewAura invokes SetSize() or
1688   // SetBounds() itself.  No matter how we got here, any redundant calls are
1689   // harmless.
1690   SetSize(new_bounds.size());
1691
1692   if (GetInputMethod())
1693     GetInputMethod()->OnCaretBoundsChanged(this);
1694 }
1695
1696 gfx::NativeCursor RenderWidgetHostViewAura::GetCursor(const gfx::Point& point) {
1697   if (mouse_locked_)
1698     return ui::kCursorNone;
1699   return current_cursor_.GetNativeCursor();
1700 }
1701
1702 int RenderWidgetHostViewAura::GetNonClientComponent(
1703     const gfx::Point& point) const {
1704   return HTCLIENT;
1705 }
1706
1707 bool RenderWidgetHostViewAura::ShouldDescendIntoChildForEventHandling(
1708     aura::Window* child,
1709     const gfx::Point& location) {
1710   return true;
1711 }
1712
1713 bool RenderWidgetHostViewAura::CanFocus() {
1714   return popup_type_ == blink::WebPopupTypeNone;
1715 }
1716
1717 void RenderWidgetHostViewAura::OnCaptureLost() {
1718   host_->LostCapture();
1719   if (touch_editing_client_)
1720     touch_editing_client_->EndTouchEditing(false);
1721 }
1722
1723 void RenderWidgetHostViewAura::OnPaint(gfx::Canvas* canvas) {
1724   NOTREACHED();
1725 }
1726
1727 void RenderWidgetHostViewAura::OnDeviceScaleFactorChanged(
1728     float device_scale_factor) {
1729   if (!host_ || !window_->GetRootWindow())
1730     return;
1731
1732   UpdateScreenInfo(window_);
1733
1734   const gfx::Display display = gfx::Screen::GetScreenFor(window_)->
1735       GetDisplayNearestWindow(window_);
1736   DCHECK_EQ(device_scale_factor, display.device_scale_factor());
1737   current_cursor_.SetDisplayInfo(display);
1738   SnapToPhysicalPixelBoundary();
1739 }
1740
1741 void RenderWidgetHostViewAura::OnWindowDestroying(aura::Window* window) {
1742 #if defined(OS_WIN)
1743   HWND parent = NULL;
1744   // If the tab was hidden and it's closed, host_->is_hidden would have been
1745   // reset to false in RenderWidgetHostImpl::RendererExited.
1746   if (!window_->GetRootWindow() || host_->is_hidden()) {
1747     parent = ui::GetHiddenWindow();
1748   } else {
1749     parent = window_->GetHost()->GetAcceleratedWidget();
1750   }
1751   LPARAM lparam = reinterpret_cast<LPARAM>(this);
1752   EnumChildWindows(parent, WindowDestroyingCallback, lparam);
1753
1754   // The LegacyRenderWidgetHostHWND instance is destroyed when its window is
1755   // destroyed. Normally we control when that happens via the Destroy call
1756   // in the dtor. However there may be cases where the window is destroyed
1757   // by Windows, i.e. the parent window is destroyed before the
1758   // RenderWidgetHostViewAura instance goes away etc. To avoid that we
1759   // destroy the LegacyRenderWidgetHostHWND instance here.
1760   if (legacy_render_widget_host_HWND_) {
1761     legacy_render_widget_host_HWND_->set_host(NULL);
1762     legacy_render_widget_host_HWND_->Destroy();
1763     // The Destroy call above will delete the LegacyRenderWidgetHostHWND
1764     // instance.
1765     legacy_render_widget_host_HWND_ = NULL;
1766   }
1767 #endif
1768
1769   // Make sure that the input method no longer references to this object before
1770   // this object is removed from the root window (i.e. this object loses access
1771   // to the input method).
1772   ui::InputMethod* input_method = GetInputMethod();
1773   if (input_method)
1774     input_method->DetachTextInputClient(this);
1775
1776   if (overscroll_controller_)
1777     overscroll_controller_->Reset();
1778 }
1779
1780 void RenderWidgetHostViewAura::OnWindowDestroyed(aura::Window* window) {
1781   // Ask the RWH to drop reference to us.
1782   if (!is_guest_view_hack_)
1783     host_->ViewDestroyed();
1784
1785   delete this;
1786 }
1787
1788 void RenderWidgetHostViewAura::OnWindowTargetVisibilityChanged(bool visible) {
1789 }
1790
1791 bool RenderWidgetHostViewAura::HasHitTestMask() const {
1792   return false;
1793 }
1794
1795 void RenderWidgetHostViewAura::GetHitTestMask(gfx::Path* mask) const {
1796 }
1797
1798 ////////////////////////////////////////////////////////////////////////////////
1799 // RenderWidgetHostViewAura, ui::EventHandler implementation:
1800
1801 void RenderWidgetHostViewAura::OnKeyEvent(ui::KeyEvent* event) {
1802   TRACE_EVENT0("input", "RenderWidgetHostViewAura::OnKeyEvent");
1803   if (touch_editing_client_ && touch_editing_client_->HandleInputEvent(event))
1804     return;
1805
1806   if (popup_child_host_view_ && popup_child_host_view_->NeedsInputGrab()) {
1807     popup_child_host_view_->OnKeyEvent(event);
1808     if (event->handled())
1809       return;
1810   }
1811
1812   // We need to handle the Escape key for Pepper Flash.
1813   if (is_fullscreen_ && event->key_code() == ui::VKEY_ESCAPE) {
1814     // Focus the window we were created from.
1815     if (host_tracker_.get() && !host_tracker_->windows().empty()) {
1816       aura::Window* host = *(host_tracker_->windows().begin());
1817       aura::client::FocusClient* client = aura::client::GetFocusClient(host);
1818       if (client) {
1819         // Calling host->Focus() may delete |this|. We create a local observer
1820         // for that. In that case we exit without further access to any members.
1821         aura::WindowTracker tracker;
1822         aura::Window* window = window_;
1823         tracker.Add(window);
1824         host->Focus();
1825         if (!tracker.Contains(window)) {
1826           event->SetHandled();
1827           return;
1828         }
1829       }
1830     }
1831     if (!in_shutdown_) {
1832       in_shutdown_ = true;
1833       host_->Shutdown();
1834     }
1835   } else {
1836     if (event->key_code() == ui::VKEY_RETURN) {
1837       // Do not forward return key release events if no press event was handled.
1838       if (event->type() == ui::ET_KEY_RELEASED && !accept_return_character_)
1839         return;
1840       // Accept return key character events between press and release events.
1841       accept_return_character_ = event->type() == ui::ET_KEY_PRESSED;
1842     }
1843
1844     // We don't have to communicate with an input method here.
1845     if (!event->HasNativeEvent()) {
1846       NativeWebKeyboardEvent webkit_event(
1847           event->type(),
1848           event->is_char(),
1849           event->is_char() ? event->GetCharacter() : event->key_code(),
1850           event->flags(),
1851           ui::EventTimeForNow().InSecondsF());
1852       ForwardKeyboardEvent(webkit_event);
1853     } else {
1854       NativeWebKeyboardEvent webkit_event(event);
1855       ForwardKeyboardEvent(webkit_event);
1856     }
1857   }
1858   event->SetHandled();
1859 }
1860
1861 void RenderWidgetHostViewAura::OnMouseEvent(ui::MouseEvent* event) {
1862   TRACE_EVENT0("input", "RenderWidgetHostViewAura::OnMouseEvent");
1863
1864   if (touch_editing_client_ && touch_editing_client_->HandleInputEvent(event))
1865     return;
1866
1867   if (mouse_locked_) {
1868     aura::client::CursorClient* cursor_client =
1869         aura::client::GetCursorClient(window_->GetRootWindow());
1870     DCHECK(!cursor_client || !cursor_client->IsCursorVisible());
1871
1872     if (event->type() == ui::ET_MOUSEWHEEL) {
1873       blink::WebMouseWheelEvent mouse_wheel_event =
1874           MakeWebMouseWheelEvent(static_cast<ui::MouseWheelEvent*>(event));
1875       if (mouse_wheel_event.deltaX != 0 || mouse_wheel_event.deltaY != 0)
1876         host_->ForwardWheelEvent(mouse_wheel_event);
1877       return;
1878     }
1879
1880     gfx::Point center(gfx::Rect(window_->bounds().size()).CenterPoint());
1881
1882     // If we receive non client mouse messages while we are in the locked state
1883     // it probably means that the mouse left the borders of our window and
1884     // needs to be moved back to the center.
1885     if (event->flags() & ui::EF_IS_NON_CLIENT) {
1886       synthetic_move_sent_ = true;
1887       window_->MoveCursorTo(center);
1888       return;
1889     }
1890
1891     blink::WebMouseEvent mouse_event = MakeWebMouseEvent(event);
1892
1893     bool is_move_to_center_event = (event->type() == ui::ET_MOUSE_MOVED ||
1894         event->type() == ui::ET_MOUSE_DRAGGED) &&
1895         mouse_event.x == center.x() && mouse_event.y == center.y();
1896
1897     ModifyEventMovementAndCoords(&mouse_event);
1898
1899     bool should_not_forward = is_move_to_center_event && synthetic_move_sent_;
1900     if (should_not_forward) {
1901       synthetic_move_sent_ = false;
1902     } else {
1903       // Check if the mouse has reached the border and needs to be centered.
1904       if (ShouldMoveToCenter()) {
1905         synthetic_move_sent_ = true;
1906         window_->MoveCursorTo(center);
1907       }
1908       // Forward event to renderer.
1909       if (CanRendererHandleEvent(event) &&
1910           !(event->flags() & ui::EF_FROM_TOUCH)) {
1911         host_->ForwardMouseEvent(mouse_event);
1912         // Ensure that we get keyboard focus on mouse down as a plugin window
1913         // may have grabbed keyboard focus.
1914         if (event->type() == ui::ET_MOUSE_PRESSED)
1915           SetKeyboardFocus();
1916       }
1917     }
1918     return;
1919   }
1920
1921   // As the overscroll is handled during scroll events from the trackpad, the
1922   // RWHVA window is transformed by the overscroll controller. This transform
1923   // triggers a synthetic mouse-move event to be generated (by the aura
1924   // RootWindow). But this event interferes with the overscroll gesture. So,
1925   // ignore such synthetic mouse-move events if an overscroll gesture is in
1926   // progress.
1927   if (overscroll_controller_ &&
1928       overscroll_controller_->overscroll_mode() != OVERSCROLL_NONE &&
1929       event->flags() & ui::EF_IS_SYNTHESIZED &&
1930       (event->type() == ui::ET_MOUSE_ENTERED ||
1931        event->type() == ui::ET_MOUSE_EXITED ||
1932        event->type() == ui::ET_MOUSE_MOVED)) {
1933     event->StopPropagation();
1934     return;
1935   }
1936
1937   if (event->type() == ui::ET_MOUSEWHEEL) {
1938 #if defined(OS_WIN)
1939     // We get mouse wheel/scroll messages even if we are not in the foreground.
1940     // So here we check if we have any owned popup windows in the foreground and
1941     // dismiss them.
1942     aura::WindowTreeHost* host = window_->GetHost();
1943     if (host) {
1944       HWND parent = host->GetAcceleratedWidget();
1945       HWND toplevel_hwnd = ::GetAncestor(parent, GA_ROOT);
1946       EnumThreadWindows(GetCurrentThreadId(),
1947                         DismissOwnedPopups,
1948                         reinterpret_cast<LPARAM>(toplevel_hwnd));
1949     }
1950 #endif
1951     // The Disambiguation popup does not parent itself from this window, so we
1952     // manually dismiss it.
1953     HideDisambiguationPopup();
1954
1955     blink::WebMouseWheelEvent mouse_wheel_event =
1956         MakeWebMouseWheelEvent(static_cast<ui::MouseWheelEvent*>(event));
1957     if (mouse_wheel_event.deltaX != 0 || mouse_wheel_event.deltaY != 0)
1958       host_->ForwardWheelEvent(mouse_wheel_event);
1959   } else if (CanRendererHandleEvent(event) &&
1960              !(event->flags() & ui::EF_FROM_TOUCH)) {
1961     // Confirm existing composition text on mouse press, to make sure
1962     // the input caret won't be moved with an ongoing composition text.
1963     if (event->type() == ui::ET_MOUSE_PRESSED)
1964       FinishImeCompositionSession();
1965
1966     blink::WebMouseEvent mouse_event = MakeWebMouseEvent(event);
1967     ModifyEventMovementAndCoords(&mouse_event);
1968     host_->ForwardMouseEvent(mouse_event);
1969     // Ensure that we get keyboard focus on mouse down as a plugin window may
1970     // have grabbed keyboard focus.
1971     if (event->type() == ui::ET_MOUSE_PRESSED)
1972       SetKeyboardFocus();
1973   }
1974
1975   switch (event->type()) {
1976     case ui::ET_MOUSE_PRESSED:
1977       window_->SetCapture();
1978       break;
1979     case ui::ET_MOUSE_RELEASED:
1980       if (!NeedsMouseCapture())
1981         window_->ReleaseCapture();
1982       break;
1983     default:
1984       break;
1985   }
1986
1987   // Needed to propagate mouse event to |window_->parent()->delegate()|, but
1988   // note that it might be something other than a WebContentsViewAura instance.
1989   // TODO(pkotwicz): Find a better way of doing this.
1990   // In fullscreen mode which is typically used by flash, don't forward
1991   // the mouse events to the parent. The renderer and the plugin process
1992   // handle these events.
1993   if (!is_fullscreen_ && window_->parent() && window_->parent()->delegate() &&
1994       !(event->flags() & ui::EF_FROM_TOUCH)) {
1995     event->ConvertLocationToTarget(window_, window_->parent());
1996     window_->parent()->delegate()->OnMouseEvent(event);
1997   }
1998
1999   if (!IsXButtonUpEvent(event))
2000     event->SetHandled();
2001 }
2002
2003 void RenderWidgetHostViewAura::OnScrollEvent(ui::ScrollEvent* event) {
2004   TRACE_EVENT0("input", "RenderWidgetHostViewAura::OnScrollEvent");
2005   if (touch_editing_client_ && touch_editing_client_->HandleInputEvent(event))
2006     return;
2007
2008   if (event->type() == ui::ET_SCROLL) {
2009 #if !defined(OS_WIN)
2010     // TODO(ananta)
2011     // Investigate if this is true for Windows 8 Metro ASH as well.
2012     if (event->finger_count() != 2)
2013       return;
2014 #endif
2015     blink::WebGestureEvent gesture_event =
2016         MakeWebGestureEventFlingCancel();
2017     host_->ForwardGestureEvent(gesture_event);
2018     blink::WebMouseWheelEvent mouse_wheel_event =
2019         MakeWebMouseWheelEvent(event);
2020     host_->ForwardWheelEvent(mouse_wheel_event);
2021     RecordAction(base::UserMetricsAction("TrackpadScroll"));
2022   } else if (event->type() == ui::ET_SCROLL_FLING_START ||
2023              event->type() == ui::ET_SCROLL_FLING_CANCEL) {
2024     blink::WebGestureEvent gesture_event =
2025         MakeWebGestureEvent(event);
2026     host_->ForwardGestureEvent(gesture_event);
2027     if (event->type() == ui::ET_SCROLL_FLING_START)
2028       RecordAction(base::UserMetricsAction("TrackpadScrollFling"));
2029   }
2030
2031   event->SetHandled();
2032 }
2033
2034 void RenderWidgetHostViewAura::OnTouchEvent(ui::TouchEvent* event) {
2035   TRACE_EVENT0("input", "RenderWidgetHostViewAura::OnTouchEvent");
2036   if (touch_editing_client_ && touch_editing_client_->HandleInputEvent(event))
2037     return;
2038
2039   // Update the touch event first.
2040   blink::WebTouchPoint* point = UpdateWebTouchEventFromUIEvent(*event,
2041                                                                 &touch_event_);
2042
2043   // Forward the touch event only if a touch point was updated, and there's a
2044   // touch-event handler in the page, and no other touch-event is in the queue.
2045   // It is important to always consume the event if there is a touch-event
2046   // handler in the page, or some touch-event is already in the queue, even if
2047   // no point has been updated, to make sure that this event does not get
2048   // processed by the gesture recognizer before the events in the queue.
2049   if (host_->ShouldForwardTouchEvent())
2050     event->StopPropagation();
2051
2052   if (point) {
2053     if (host_->ShouldForwardTouchEvent())
2054       host_->ForwardTouchEventWithLatencyInfo(touch_event_, *event->latency());
2055     UpdateWebTouchEventAfterDispatch(&touch_event_, point);
2056   }
2057 }
2058
2059 void RenderWidgetHostViewAura::OnGestureEvent(ui::GestureEvent* event) {
2060   TRACE_EVENT0("input", "RenderWidgetHostViewAura::OnGestureEvent");
2061   if ((event->type() == ui::ET_GESTURE_PINCH_BEGIN ||
2062       event->type() == ui::ET_GESTURE_PINCH_UPDATE ||
2063       event->type() == ui::ET_GESTURE_PINCH_END) && !pinch_zoom_enabled_) {
2064     event->SetHandled();
2065     return;
2066   }
2067
2068   if (touch_editing_client_ && touch_editing_client_->HandleInputEvent(event))
2069     return;
2070
2071   // Confirm existing composition text on TAP gesture, to make sure the input
2072   // caret won't be moved with an ongoing composition text.
2073   if (event->type() == ui::ET_GESTURE_TAP)
2074     FinishImeCompositionSession();
2075
2076   RenderViewHostDelegate* delegate = NULL;
2077   if (host_->IsRenderView())
2078     delegate = RenderViewHost::From(host_)->GetDelegate();
2079
2080   if (delegate && event->type() == ui::ET_GESTURE_BEGIN &&
2081       event->details().touch_points() == 1) {
2082     delegate->HandleGestureBegin();
2083   }
2084
2085   blink::WebGestureEvent gesture = MakeWebGestureEvent(event);
2086   if (event->type() == ui::ET_GESTURE_TAP_DOWN) {
2087     // Webkit does not stop a fling-scroll on tap-down. So explicitly send an
2088     // event to stop any in-progress flings.
2089     blink::WebGestureEvent fling_cancel = gesture;
2090     fling_cancel.type = blink::WebInputEvent::GestureFlingCancel;
2091     fling_cancel.sourceDevice = blink::WebGestureDeviceTouchscreen;
2092     host_->ForwardGestureEvent(fling_cancel);
2093   }
2094
2095   if (gesture.type != blink::WebInputEvent::Undefined) {
2096     host_->ForwardGestureEventWithLatencyInfo(gesture, *event->latency());
2097
2098     if (event->type() == ui::ET_GESTURE_SCROLL_BEGIN ||
2099         event->type() == ui::ET_GESTURE_SCROLL_UPDATE ||
2100         event->type() == ui::ET_GESTURE_SCROLL_END) {
2101       RecordAction(base::UserMetricsAction("TouchscreenScroll"));
2102     } else if (event->type() == ui::ET_SCROLL_FLING_START) {
2103       RecordAction(base::UserMetricsAction("TouchscreenScrollFling"));
2104     }
2105   }
2106
2107   if (delegate && event->type() == ui::ET_GESTURE_END &&
2108       event->details().touch_points() == 1) {
2109     delegate->HandleGestureEnd();
2110   }
2111
2112   // If a gesture is not processed by the webpage, then WebKit processes it
2113   // (e.g. generates synthetic mouse events).
2114   event->SetHandled();
2115 }
2116
2117 ////////////////////////////////////////////////////////////////////////////////
2118 // RenderWidgetHostViewAura, aura::client::ActivationDelegate implementation:
2119
2120 bool RenderWidgetHostViewAura::ShouldActivate() const {
2121   aura::WindowTreeHost* host = window_->GetHost();
2122   if (!host)
2123     return true;
2124   const ui::Event* event = host->dispatcher()->current_event();
2125   if (!event)
2126     return true;
2127   return is_fullscreen_;
2128 }
2129
2130 ////////////////////////////////////////////////////////////////////////////////
2131 // RenderWidgetHostViewAura,
2132 //     aura::client::ActivationChangeObserver implementation:
2133
2134 void RenderWidgetHostViewAura::OnWindowActivated(aura::Window* gained_active,
2135                                                  aura::Window* lost_active) {
2136   DCHECK(window_ == gained_active || window_ == lost_active);
2137   if (window_ == gained_active) {
2138     const ui::Event* event = window_->GetHost()->dispatcher()->current_event();
2139     if (event && PointerEventActivates(*event))
2140       host_->OnPointerEventActivate();
2141   }
2142 }
2143
2144 ////////////////////////////////////////////////////////////////////////////////
2145 // RenderWidgetHostViewAura, aura::client::CursorClientObserver implementation:
2146
2147 void RenderWidgetHostViewAura::OnCursorVisibilityChanged(bool is_visible) {
2148   NotifyRendererOfCursorVisibilityState(is_visible);
2149 }
2150
2151 ////////////////////////////////////////////////////////////////////////////////
2152 // RenderWidgetHostViewAura, aura::client::FocusChangeObserver implementation:
2153
2154 void RenderWidgetHostViewAura::OnWindowFocused(aura::Window* gained_focus,
2155                                                aura::Window* lost_focus) {
2156   DCHECK(window_ == gained_focus || window_ == lost_focus);
2157   if (window_ == gained_focus) {
2158     // We need to honor input bypass if the associated tab is does not want
2159     // input. This gives the current focused window a chance to be the text
2160     // input client and handle events.
2161     if (host_->ignore_input_events())
2162       return;
2163
2164     host_->GotFocus();
2165     host_->SetActive(true);
2166
2167     ui::InputMethod* input_method = GetInputMethod();
2168     if (input_method) {
2169       // Ask the system-wide IME to send all TextInputClient messages to |this|
2170       // object.
2171       input_method->SetFocusedTextInputClient(this);
2172       host_->SetInputMethodActive(input_method->IsActive());
2173
2174       // Often the application can set focus to the view in response to a key
2175       // down. However the following char event shouldn't be sent to the web
2176       // page.
2177       host_->SuppressNextCharEvents();
2178     } else {
2179       host_->SetInputMethodActive(false);
2180     }
2181
2182     BrowserAccessibilityManager* manager =
2183         host_->GetRootBrowserAccessibilityManager();
2184     if (manager)
2185       manager->OnWindowFocused();
2186   } else if (window_ == lost_focus) {
2187     host_->SetActive(false);
2188     host_->Blur();
2189
2190     DetachFromInputMethod();
2191     host_->SetInputMethodActive(false);
2192
2193     if (touch_editing_client_)
2194       touch_editing_client_->EndTouchEditing(false);
2195
2196     if (overscroll_controller_)
2197       overscroll_controller_->Cancel();
2198
2199     BrowserAccessibilityManager* manager =
2200         host_->GetRootBrowserAccessibilityManager();
2201     if (manager)
2202       manager->OnWindowBlurred();
2203
2204     // If we lose the focus while fullscreen, close the window; Pepper Flash
2205     // won't do it for us (unlike NPAPI Flash). However, we do not close the
2206     // window if we lose the focus to a window on another display.
2207     gfx::Screen* screen = gfx::Screen::GetScreenFor(window_);
2208     bool focusing_other_display =
2209         gained_focus && screen->GetNumDisplays() > 1 &&
2210         (screen->GetDisplayNearestWindow(window_).id() !=
2211          screen->GetDisplayNearestWindow(gained_focus).id());
2212     if (is_fullscreen_ && !in_shutdown_ && !focusing_other_display) {
2213 #if defined(OS_WIN)
2214       // On Windows, if we are switching to a non Aura Window on a different
2215       // screen we should not close the fullscreen window.
2216       if (!gained_focus) {
2217         POINT point = {0};
2218         ::GetCursorPos(&point);
2219         if (screen->GetDisplayNearestWindow(window_).id() !=
2220             screen->GetDisplayNearestPoint(gfx::Point(point)).id())
2221           return;
2222       }
2223 #endif
2224       in_shutdown_ = true;
2225       host_->Shutdown();
2226     }
2227   }
2228 }
2229
2230 ////////////////////////////////////////////////////////////////////////////////
2231 // RenderWidgetHostViewAura, aura::WindowTreeHostObserver implementation:
2232
2233 void RenderWidgetHostViewAura::OnHostMoved(const aura::WindowTreeHost* host,
2234                                            const gfx::Point& new_origin) {
2235   TRACE_EVENT1("ui", "RenderWidgetHostViewAura::OnHostMoved",
2236                "new_origin", new_origin.ToString());
2237
2238   UpdateScreenInfo(window_);
2239 }
2240
2241 ////////////////////////////////////////////////////////////////////////////////
2242 // RenderWidgetHostViewAura, private:
2243
2244 RenderWidgetHostViewAura::~RenderWidgetHostViewAura() {
2245   if (touch_editing_client_)
2246     touch_editing_client_->OnViewDestroyed();
2247
2248   delegated_frame_host_.reset();
2249   window_observer_.reset();
2250   if (window_->GetHost())
2251     window_->GetHost()->RemoveObserver(this);
2252   UnlockMouse();
2253   if (popup_parent_host_view_) {
2254     DCHECK(popup_parent_host_view_->popup_child_host_view_ == NULL ||
2255            popup_parent_host_view_->popup_child_host_view_ == this);
2256     popup_parent_host_view_->popup_child_host_view_ = NULL;
2257   }
2258   if (popup_child_host_view_) {
2259     DCHECK(popup_child_host_view_->popup_parent_host_view_ == NULL ||
2260            popup_child_host_view_->popup_parent_host_view_ == this);
2261     popup_child_host_view_->popup_parent_host_view_ = NULL;
2262   }
2263   event_filter_for_popup_exit_.reset();
2264   aura::client::SetTooltipText(window_, NULL);
2265   gfx::Screen::GetScreenFor(window_)->RemoveObserver(this);
2266
2267   // This call is usually no-op since |this| object is already removed from the
2268   // Aura root window and we don't have a way to get an input method object
2269   // associated with the window, but just in case.
2270   DetachFromInputMethod();
2271
2272 #if defined(OS_WIN)
2273   // The LegacyRenderWidgetHostHWND window should have been destroyed in
2274   // RenderWidgetHostViewAura::OnWindowDestroying and the pointer should
2275   // be set to NULL.
2276   DCHECK(!legacy_render_widget_host_HWND_);
2277 #endif
2278 }
2279
2280 void RenderWidgetHostViewAura::UpdateCursorIfOverSelf() {
2281   const gfx::Point screen_point =
2282       gfx::Screen::GetScreenFor(GetNativeView())->GetCursorScreenPoint();
2283   aura::Window* root_window = window_->GetRootWindow();
2284   if (!root_window)
2285     return;
2286
2287   gfx::Point root_window_point = screen_point;
2288   aura::client::ScreenPositionClient* screen_position_client =
2289       aura::client::GetScreenPositionClient(root_window);
2290   if (screen_position_client) {
2291     screen_position_client->ConvertPointFromScreen(
2292         root_window, &root_window_point);
2293   }
2294
2295   if (root_window->GetEventHandlerForPoint(root_window_point) != window_)
2296     return;
2297
2298   gfx::NativeCursor cursor = current_cursor_.GetNativeCursor();
2299   // Do not show loading cursor when the cursor is currently hidden.
2300   if (is_loading_ && cursor != ui::kCursorNone)
2301     cursor = ui::kCursorPointer;
2302
2303   aura::client::CursorClient* cursor_client =
2304       aura::client::GetCursorClient(root_window);
2305   if (cursor_client) {
2306     cursor_client->SetCursor(cursor);
2307   }
2308 }
2309
2310 ui::InputMethod* RenderWidgetHostViewAura::GetInputMethod() const {
2311   aura::Window* root_window = window_->GetRootWindow();
2312   if (!root_window)
2313     return NULL;
2314   return root_window->GetProperty(aura::client::kRootWindowInputMethodKey);
2315 }
2316
2317 bool RenderWidgetHostViewAura::NeedsInputGrab() {
2318   return popup_type_ == blink::WebPopupTypeSelect;
2319 }
2320
2321 bool RenderWidgetHostViewAura::NeedsMouseCapture() {
2322 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
2323   return NeedsInputGrab();
2324 #endif
2325   return false;
2326 }
2327
2328 void RenderWidgetHostViewAura::FinishImeCompositionSession() {
2329   if (!has_composition_text_)
2330     return;
2331   if (host_) {
2332     host_->ImeConfirmComposition(base::string16(), gfx::Range::InvalidRange(),
2333                                  false);
2334   }
2335   ImeCancelComposition();
2336 }
2337
2338 void RenderWidgetHostViewAura::ModifyEventMovementAndCoords(
2339     blink::WebMouseEvent* event) {
2340   // If the mouse has just entered, we must report zero movementX/Y. Hence we
2341   // reset any global_mouse_position set previously.
2342   if (event->type == blink::WebInputEvent::MouseEnter ||
2343       event->type == blink::WebInputEvent::MouseLeave)
2344     global_mouse_position_.SetPoint(event->globalX, event->globalY);
2345
2346   // Movement is computed by taking the difference of the new cursor position
2347   // and the previous. Under mouse lock the cursor will be warped back to the
2348   // center so that we are not limited by clipping boundaries.
2349   // We do not measure movement as the delta from cursor to center because
2350   // we may receive more mouse movement events before our warp has taken
2351   // effect.
2352   event->movementX = event->globalX - global_mouse_position_.x();
2353   event->movementY = event->globalY - global_mouse_position_.y();
2354
2355   global_mouse_position_.SetPoint(event->globalX, event->globalY);
2356
2357   // Under mouse lock, coordinates of mouse are locked to what they were when
2358   // mouse lock was entered.
2359   if (mouse_locked_) {
2360     event->x = unlocked_mouse_position_.x();
2361     event->y = unlocked_mouse_position_.y();
2362     event->windowX = unlocked_mouse_position_.x();
2363     event->windowY = unlocked_mouse_position_.y();
2364     event->globalX = unlocked_global_mouse_position_.x();
2365     event->globalY = unlocked_global_mouse_position_.y();
2366   } else {
2367     unlocked_mouse_position_.SetPoint(event->windowX, event->windowY);
2368     unlocked_global_mouse_position_.SetPoint(event->globalX, event->globalY);
2369   }
2370 }
2371
2372 void RenderWidgetHostViewAura::NotifyRendererOfCursorVisibilityState(
2373     bool is_visible) {
2374   if (host_->is_hidden() ||
2375       (cursor_visibility_state_in_renderer_ == VISIBLE && is_visible) ||
2376       (cursor_visibility_state_in_renderer_ == NOT_VISIBLE && !is_visible))
2377     return;
2378
2379   cursor_visibility_state_in_renderer_ = is_visible ? VISIBLE : NOT_VISIBLE;
2380   host_->SendCursorVisibilityState(is_visible);
2381 }
2382
2383 void RenderWidgetHostViewAura::SetOverscrollControllerEnabled(bool enabled) {
2384   if (!enabled)
2385     overscroll_controller_.reset();
2386   else if (!overscroll_controller_)
2387     overscroll_controller_.reset(new OverscrollController());
2388 }
2389
2390 void RenderWidgetHostViewAura::SnapToPhysicalPixelBoundary() {
2391   // The top left corner of our view in window coordinates might not land on a
2392   // device pixel boundary if we have a non-integer device scale. In that case,
2393   // to avoid the web contents area looking blurry we translate the web contents
2394   // in the +x, +y direction to land on the nearest pixel boundary. This may
2395   // cause the bottom and right edges to be clipped slightly, but that's ok.
2396   aura::Window* snapped = NULL;
2397   // On desktop, use the root window. On alternative environment (ash),
2398   // use the toplevel window which must be already snapped.
2399   if (gfx::Screen::GetScreenFor(window_) !=
2400       gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_ALTERNATE)) {
2401     snapped = window_->GetRootWindow();
2402   } else {
2403     snapped = window_->GetToplevelWindow();
2404   }
2405   if (snapped && snapped != window_)
2406     ui::SnapLayerToPhysicalPixelBoundary(snapped->layer(), window_->layer());
2407
2408   has_snapped_to_boundary_ = true;
2409 }
2410
2411 void RenderWidgetHostViewAura::InternalSetBounds(const gfx::Rect& rect) {
2412   if (HasDisplayPropertyChanged(window_))
2413     host_->InvalidateScreenInfo();
2414
2415   SnapToPhysicalPixelBoundary();
2416   // Don't recursively call SetBounds if this bounds update is the result of
2417   // a Window::SetBoundsInternal call.
2418   if (!in_bounds_changed_)
2419     window_->SetBounds(rect);
2420   host_->WasResized();
2421   delegated_frame_host_->WasResized();
2422   if (touch_editing_client_) {
2423     touch_editing_client_->OnSelectionOrCursorChanged(selection_anchor_rect_,
2424       selection_focus_rect_);
2425   }
2426 #if defined(OS_WIN)
2427   // Create the legacy dummy window which corresponds to the bounds of the
2428   // webcontents. This will be passed as the container window for windowless
2429   // plugins.
2430   // Plugins like Flash assume the container window which is returned via the
2431   // NPNVnetscapeWindow property corresponds to the bounds of the webpage.
2432   // This is not true in Aura where we have only HWND which is the main Aura
2433   // window. If we return this window to plugins like Flash then it causes the
2434   // coordinate translations done by these plugins to break.
2435   // Additonally the legacy dummy window is needed for accessibility and for
2436   // scrolling to work in legacy drivers for trackpoints/trackpads, etc.
2437   if (!legacy_window_destroyed_ && GetNativeViewId()) {
2438     if (!legacy_render_widget_host_HWND_) {
2439       legacy_render_widget_host_HWND_ = LegacyRenderWidgetHostHWND::Create(
2440           reinterpret_cast<HWND>(GetNativeViewId()));
2441     }
2442     if (legacy_render_widget_host_HWND_) {
2443       legacy_render_widget_host_HWND_->set_host(this);
2444       legacy_render_widget_host_HWND_->SetBounds(
2445           window_->GetBoundsInRootWindow());
2446       // There are cases where the parent window is created, made visible and
2447       // the associated RenderWidget is also visible before the
2448       // LegacyRenderWidgetHostHWND instace is created. Ensure that it is shown
2449       // here.
2450       if (!host_->is_hidden())
2451         legacy_render_widget_host_HWND_->Show();
2452     }
2453   }
2454
2455   if (mouse_locked_)
2456     UpdateMouseLockRegion();
2457 #endif
2458 }
2459
2460 void RenderWidgetHostViewAura::SchedulePaintIfNotInClip(
2461     const gfx::Rect& rect,
2462     const gfx::Rect& clip) {
2463   if (!clip.IsEmpty()) {
2464     gfx::Rect to_paint = gfx::SubtractRects(rect, clip);
2465     if (!to_paint.IsEmpty())
2466       window_->SchedulePaintInRect(to_paint);
2467   } else {
2468     window_->SchedulePaintInRect(rect);
2469   }
2470 }
2471
2472 bool RenderWidgetHostViewAura::ShouldMoveToCenter() {
2473   gfx::Rect rect = window_->bounds();
2474   rect = ConvertRectToScreen(rect);
2475   int border_x = rect.width() * kMouseLockBorderPercentage / 100;
2476   int border_y = rect.height() * kMouseLockBorderPercentage / 100;
2477
2478   return global_mouse_position_.x() < rect.x() + border_x ||
2479       global_mouse_position_.x() > rect.right() - border_x ||
2480       global_mouse_position_.y() < rect.y() + border_y ||
2481       global_mouse_position_.y() > rect.bottom() - border_y;
2482 }
2483
2484 void RenderWidgetHostViewAura::AddedToRootWindow() {
2485   window_->GetHost()->AddObserver(this);
2486   UpdateScreenInfo(window_);
2487
2488   aura::client::CursorClient* cursor_client =
2489       aura::client::GetCursorClient(window_->GetRootWindow());
2490   if (cursor_client) {
2491     cursor_client->AddObserver(this);
2492     NotifyRendererOfCursorVisibilityState(cursor_client->IsCursorVisible());
2493   }
2494   if (HasFocus()) {
2495     ui::InputMethod* input_method = GetInputMethod();
2496     if (input_method)
2497       input_method->SetFocusedTextInputClient(this);
2498   }
2499
2500 #if defined(OS_WIN)
2501   // The parent may have changed here. Ensure that the legacy window is
2502   // reparented accordingly.
2503   if (legacy_render_widget_host_HWND_)
2504     legacy_render_widget_host_HWND_->UpdateParent(
2505         reinterpret_cast<HWND>(GetNativeViewId()));
2506 #endif
2507
2508   delegated_frame_host_->AddedToWindow();
2509 }
2510
2511 void RenderWidgetHostViewAura::RemovingFromRootWindow() {
2512   aura::client::CursorClient* cursor_client =
2513       aura::client::GetCursorClient(window_->GetRootWindow());
2514   if (cursor_client)
2515     cursor_client->RemoveObserver(this);
2516
2517   DetachFromInputMethod();
2518
2519   window_->GetHost()->RemoveObserver(this);
2520   delegated_frame_host_->RemovingFromWindow();
2521
2522 #if defined(OS_WIN)
2523   // Update the legacy window's parent temporarily to the desktop window. It
2524   // will eventually get reparented to the right root.
2525   if (legacy_render_widget_host_HWND_)
2526     legacy_render_widget_host_HWND_->UpdateParent(::GetDesktopWindow());
2527 #endif
2528 }
2529
2530 void RenderWidgetHostViewAura::DetachFromInputMethod() {
2531   ui::InputMethod* input_method = GetInputMethod();
2532   if (input_method && input_method->GetTextInputClient() == this)
2533     input_method->SetFocusedTextInputClient(NULL);
2534 }
2535
2536 void RenderWidgetHostViewAura::ForwardKeyboardEvent(
2537     const NativeWebKeyboardEvent& event) {
2538 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
2539   ui::TextEditKeyBindingsDelegateAuraLinux* keybinding_delegate =
2540       ui::GetTextEditKeyBindingsDelegate();
2541   std::vector<ui::TextEditCommandAuraLinux> commands;
2542   if (!event.skip_in_browser &&
2543       keybinding_delegate &&
2544       event.os_event &&
2545       keybinding_delegate->MatchEvent(*event.os_event, &commands)) {
2546     // Transform from ui/ types to content/ types.
2547     EditCommands edit_commands;
2548     for (std::vector<ui::TextEditCommandAuraLinux>::const_iterator it =
2549              commands.begin(); it != commands.end(); ++it) {
2550       edit_commands.push_back(EditCommand(it->GetCommandString(),
2551                                           it->argument()));
2552     }
2553     host_->Send(new InputMsg_SetEditCommandsForNextKeyEvent(
2554         host_->GetRoutingID(), edit_commands));
2555     NativeWebKeyboardEvent copy_event(event);
2556     copy_event.match_edit_command = true;
2557     host_->ForwardKeyboardEvent(copy_event);
2558     return;
2559   }
2560 #endif
2561
2562   host_->ForwardKeyboardEvent(event);
2563 }
2564
2565 SkColorType RenderWidgetHostViewAura::PreferredReadbackFormat() {
2566   return kN32_SkColorType;
2567 }
2568
2569 ////////////////////////////////////////////////////////////////////////////////
2570 // DelegatedFrameHost, public:
2571
2572 ui::Compositor* RenderWidgetHostViewAura::GetCompositor() const {
2573   aura::WindowTreeHost* host = window_->GetHost();
2574   return host ? host->compositor() : NULL;
2575 }
2576
2577 ui::Layer* RenderWidgetHostViewAura::GetLayer() {
2578   return window_->layer();
2579 }
2580
2581 RenderWidgetHostImpl* RenderWidgetHostViewAura::GetHost() {
2582   return host_;
2583 }
2584
2585 bool RenderWidgetHostViewAura::IsVisible() {
2586   return IsShowing();
2587 }
2588
2589 gfx::Size RenderWidgetHostViewAura::DesiredFrameSize() {
2590   return window_->bounds().size();
2591 }
2592
2593 float RenderWidgetHostViewAura::CurrentDeviceScaleFactor() {
2594   return current_device_scale_factor_;
2595 }
2596
2597 gfx::Size RenderWidgetHostViewAura::ConvertViewSizeToPixel(
2598     const gfx::Size& size) {
2599   return content::ConvertViewSizeToPixel(this, size);
2600 }
2601
2602 scoped_ptr<ResizeLock> RenderWidgetHostViewAura::CreateResizeLock(
2603     bool defer_compositor_lock) {
2604   gfx::Size desired_size = window_->bounds().size();
2605   return scoped_ptr<ResizeLock>(new CompositorResizeLock(
2606       window_->GetHost(),
2607       desired_size,
2608       defer_compositor_lock,
2609       base::TimeDelta::FromMilliseconds(kResizeLockTimeoutMs)));
2610 }
2611
2612 DelegatedFrameHost* RenderWidgetHostViewAura::GetDelegatedFrameHost() const {
2613   return delegated_frame_host_.get();
2614 }
2615
2616 ////////////////////////////////////////////////////////////////////////////////
2617 // RenderWidgetHostViewBase, public:
2618
2619 // static
2620 void RenderWidgetHostViewBase::GetDefaultScreenInfo(WebScreenInfo* results) {
2621   GetScreenInfoForWindow(results, NULL);
2622 }
2623
2624 }  // namespace content