render_widget_host_view_guest.cc revision 5d1f7b1de12d16ceb2c938c56701a3e8bfa558f7 
1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "base/bind_helpers.h"
6#include "base/command_line.h"
7#include "base/logging.h"
8#include "base/message_loop/message_loop.h"
9#include "content/browser/browser_plugin/browser_plugin_guest.h"
10#include "content/browser/frame_host/render_widget_host_view_guest.h"
11#include "content/browser/renderer_host/render_view_host_impl.h"
12#include "content/common/browser_plugin/browser_plugin_messages.h"
13#include "content/common/frame_messages.h"
14#include "content/common/gpu/gpu_messages.h"
15#include "content/common/view_messages.h"
16#include "content/common/webplugin_geometry.h"
17#include "content/public/common/content_switches.h"
18#include "skia/ext/platform_canvas.h"
19#include "third_party/WebKit/public/platform/WebScreenInfo.h"
20
21#if defined(OS_MACOSX)
22#import "content/browser/renderer_host/render_widget_host_view_mac_dictionary_helper.h"
23#endif
24
25#if defined(OS_WIN) || defined(USE_AURA)
26#include "content/browser/renderer_host/ui_events_helper.h"
27#endif
28
29namespace content {
30
31namespace {
32
33#if defined(OS_WIN) || defined(USE_AURA)
34blink::WebGestureEvent CreateFlingCancelEvent(double time_stamp) {
35  blink::WebGestureEvent gesture_event;
36  gesture_event.timeStampSeconds = time_stamp;
37  gesture_event.type = blink::WebGestureEvent::GestureFlingCancel;
38  gesture_event.sourceDevice = blink::WebGestureEvent::Touchscreen;
39  return gesture_event;
40}
41#endif  // defined(OS_WIN) || defined(USE_AURA)
42
43}  // namespace
44
45RenderWidgetHostViewGuest::RenderWidgetHostViewGuest(
46    RenderWidgetHost* widget_host,
47    BrowserPluginGuest* guest,
48    RenderWidgetHostView* platform_view)
49    : RenderWidgetHostViewChildFrame(widget_host),
50      // |guest| is NULL during test.
51      guest_(guest ? guest->AsWeakPtr() : base::WeakPtr<BrowserPluginGuest>()),
52      platform_view_(static_cast<RenderWidgetHostViewPort*>(platform_view)) {
53#if defined(OS_WIN) || defined(USE_AURA)
54  gesture_recognizer_.reset(ui::GestureRecognizer::Create());
55  gesture_recognizer_->AddGestureEventHelper(this);
56#endif  // defined(OS_WIN) || defined(USE_AURA)
57}
58
59RenderWidgetHostViewGuest::~RenderWidgetHostViewGuest() {
60#if defined(OS_WIN) || defined(USE_AURA)
61  gesture_recognizer_->RemoveGestureEventHelper(this);
62#endif  // defined(OS_WIN) || defined(USE_AURA)
63}
64
65void RenderWidgetHostViewGuest::WasShown() {
66  // If the WebContents associated with us showed an interstitial page in the
67  // beginning, the teardown path might call WasShown() while |host_| is in
68  // the process of destruction. Avoid calling WasShown below in this case.
69  // TODO(lazyboy): We shouldn't be showing interstitial pages in guests in the
70  // first place: http://crbug.com/273089.
71  //
72  // |guest_| is NULL during test.
73  if ((guest_ && guest_->is_in_destruction()) || !host_->is_hidden())
74    return;
75  host_->WasShown();
76}
77
78void RenderWidgetHostViewGuest::WasHidden() {
79  // |guest_| is NULL during test.
80  if ((guest_ && guest_->is_in_destruction()) || host_->is_hidden())
81    return;
82  host_->WasHidden();
83}
84
85void RenderWidgetHostViewGuest::SetSize(const gfx::Size& size) {
86  size_ = size;
87  host_->WasResized();
88}
89
90void RenderWidgetHostViewGuest::SetBounds(const gfx::Rect& rect) {
91  SetSize(rect.size());
92}
93
94#if defined(OS_WIN) || defined(USE_AURA)
95void RenderWidgetHostViewGuest::ProcessAckedTouchEvent(
96    const TouchEventWithLatencyInfo& touch, InputEventAckState ack_result) {
97  // TODO(fsamuel): Currently we will only take this codepath if the guest has
98  // requested touch events. A better solution is to always forward touchpresses
99  // to the embedder process to target a BrowserPlugin, and then route all
100  // subsequent touch points of that touchdown to the appropriate guest until
101  // that touch point is released.
102  ScopedVector<ui::TouchEvent> events;
103  if (!MakeUITouchEventsFromWebTouchEvents(touch, &events, LOCAL_COORDINATES))
104    return;
105
106  ui::EventResult result = (ack_result ==
107      INPUT_EVENT_ACK_STATE_CONSUMED) ? ui::ER_HANDLED : ui::ER_UNHANDLED;
108  for (ScopedVector<ui::TouchEvent>::iterator iter = events.begin(),
109      end = events.end(); iter != end; ++iter)  {
110    scoped_ptr<ui::GestureRecognizer::Gestures> gestures;
111    gestures.reset(gesture_recognizer_->ProcessTouchEventForGesture(
112        *(*iter), result, this));
113    ProcessGestures(gestures.get());
114  }
115}
116#endif
117
118gfx::Rect RenderWidgetHostViewGuest::GetViewBounds() const {
119  if (!guest_)
120    return gfx::Rect();
121
122  RenderWidgetHostViewPort* rwhv = static_cast<RenderWidgetHostViewPort*>(
123      guest_->GetEmbedderRenderWidgetHostView());
124  gfx::Rect embedder_bounds;
125  if (rwhv)
126    embedder_bounds = rwhv->GetViewBounds();
127  gfx::Rect shifted_rect = guest_->ToGuestRect(embedder_bounds);
128  shifted_rect.set_width(size_.width());
129  shifted_rect.set_height(size_.height());
130  return shifted_rect;
131}
132
133void RenderWidgetHostViewGuest::RenderProcessGone(
134    base::TerminationStatus status,
135    int error_code) {
136  platform_view_->RenderProcessGone(status, error_code);
137  // Destroy the guest view instance only, so we don't end up calling
138  // platform_view_->Destroy().
139  DestroyGuestView();
140}
141
142void RenderWidgetHostViewGuest::Destroy() {
143  // The RenderWidgetHost's destruction led here, so don't call it.
144  DestroyGuestView();
145
146  platform_view_->Destroy();
147}
148
149gfx::Size RenderWidgetHostViewGuest::GetPhysicalBackingSize() const {
150  return RenderWidgetHostViewBase::GetPhysicalBackingSize();
151}
152
153base::string16 RenderWidgetHostViewGuest::GetSelectedText() const {
154  return platform_view_->GetSelectedText();
155}
156
157void RenderWidgetHostViewGuest::SetTooltipText(
158    const base::string16& tooltip_text) {
159  platform_view_->SetTooltipText(tooltip_text);
160}
161
162void RenderWidgetHostViewGuest::AcceleratedSurfaceBuffersSwapped(
163    const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params,
164    int gpu_host_id) {
165  if (!guest_)
166    return;
167
168  // If accelerated surface buffers are getting swapped then we're not using
169  // the software path.
170  guest_->clear_damage_buffer();
171  FrameMsg_BuffersSwapped_Params guest_params;
172  guest_params.size = params.size;
173  guest_params.mailbox = params.mailbox;
174  guest_params.gpu_route_id = params.route_id;
175  guest_params.gpu_host_id = gpu_host_id;
176  guest_->SendMessageToEmbedder(
177      new BrowserPluginMsg_BuffersSwapped(guest_->instance_id(),
178                                          guest_params));
179}
180
181void RenderWidgetHostViewGuest::AcceleratedSurfacePostSubBuffer(
182    const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
183    int gpu_host_id) {
184  NOTREACHED();
185}
186
187void RenderWidgetHostViewGuest::OnSwapCompositorFrame(
188    uint32 output_surface_id,
189    scoped_ptr<cc::CompositorFrame> frame) {
190  if (!guest_)
191    return;
192
193  guest_->clear_damage_buffer();
194
195  if (!guest_->attached()) {
196    // If the guest doesn't have an embedder then there's nothing to give the
197    // the frame to.
198    return;
199  }
200  if (frame->software_frame_data) {
201    cc::SoftwareFrameData* frame_data = frame->software_frame_data.get();
202#ifdef OS_WIN
203    base::SharedMemory shared_memory(frame_data->handle, true,
204                                     host_->GetProcess()->GetHandle());
205#else
206    base::SharedMemory shared_memory(frame_data->handle, true);
207#endif
208
209    RenderWidgetHostView* embedder_rwhv =
210        guest_->GetEmbedderRenderWidgetHostView();
211    base::ProcessHandle embedder_pid =
212        embedder_rwhv->GetRenderWidgetHost()->GetProcess()->GetHandle();
213
214    shared_memory.GiveToProcess(embedder_pid, &frame_data->handle);
215  }
216
217  FrameMsg_CompositorFrameSwapped_Params guest_params;
218  frame->AssignTo(&guest_params.frame);
219  guest_params.output_surface_id = output_surface_id;
220  guest_params.producing_route_id = host_->GetRoutingID();
221  guest_params.producing_host_id = host_->GetProcess()->GetID();
222
223  guest_->SendMessageToEmbedder(
224      new BrowserPluginMsg_CompositorFrameSwapped(guest_->instance_id(),
225                                                  guest_params));
226}
227
228bool RenderWidgetHostViewGuest::OnMessageReceived(const IPC::Message& msg) {
229  return platform_view_->OnMessageReceived(msg);
230}
231
232void RenderWidgetHostViewGuest::InitAsChild(
233    gfx::NativeView parent_view) {
234  platform_view_->InitAsChild(parent_view);
235}
236
237void RenderWidgetHostViewGuest::InitAsPopup(
238    RenderWidgetHostView* parent_host_view, const gfx::Rect& pos) {
239  // This should never get called.
240  NOTREACHED();
241}
242
243void RenderWidgetHostViewGuest::InitAsFullscreen(
244    RenderWidgetHostView* reference_host_view) {
245  // This should never get called.
246  NOTREACHED();
247}
248
249gfx::NativeView RenderWidgetHostViewGuest::GetNativeView() const {
250  if (!guest_)
251    return gfx::NativeView();
252
253  RenderWidgetHostView* rwhv = guest_->GetEmbedderRenderWidgetHostView();
254  if (!rwhv)
255    return gfx::NativeView();
256  return rwhv->GetNativeView();
257}
258
259gfx::NativeViewId RenderWidgetHostViewGuest::GetNativeViewId() const {
260  if (!guest_)
261    return static_cast<gfx::NativeViewId>(NULL);
262
263  RenderWidgetHostView* rwhv = guest_->GetEmbedderRenderWidgetHostView();
264  if (!rwhv)
265    return static_cast<gfx::NativeViewId>(NULL);
266  return rwhv->GetNativeViewId();
267}
268
269gfx::NativeViewAccessible RenderWidgetHostViewGuest::GetNativeViewAccessible() {
270  if (!guest_)
271    return gfx::NativeViewAccessible();
272
273  RenderWidgetHostView* rwhv = guest_->GetEmbedderRenderWidgetHostView();
274  if (!rwhv)
275    return gfx::NativeViewAccessible();
276  return rwhv->GetNativeViewAccessible();
277}
278
279void RenderWidgetHostViewGuest::MovePluginWindows(
280    const gfx::Vector2d& scroll_offset,
281    const std::vector<WebPluginGeometry>& moves) {
282  platform_view_->MovePluginWindows(scroll_offset, moves);
283}
284
285void RenderWidgetHostViewGuest::UpdateCursor(const WebCursor& cursor) {
286  platform_view_->UpdateCursor(cursor);
287}
288
289void RenderWidgetHostViewGuest::SetIsLoading(bool is_loading) {
290  platform_view_->SetIsLoading(is_loading);
291}
292
293void RenderWidgetHostViewGuest::TextInputTypeChanged(
294    ui::TextInputType type,
295    ui::TextInputMode input_mode,
296    bool can_compose_inline) {
297  if (!guest_)
298    return;
299
300  RenderWidgetHostViewPort* rwhv = RenderWidgetHostViewPort::FromRWHV(
301      guest_->GetEmbedderRenderWidgetHostView());
302  if (!rwhv)
303    return;
304  // Forward the information to embedding RWHV.
305  rwhv->TextInputTypeChanged(type, input_mode, can_compose_inline);
306}
307
308void RenderWidgetHostViewGuest::ImeCancelComposition() {
309  if (!guest_)
310    return;
311
312  RenderWidgetHostViewPort* rwhv = RenderWidgetHostViewPort::FromRWHV(
313      guest_->GetEmbedderRenderWidgetHostView());
314  if (!rwhv)
315    return;
316  // Forward the information to embedding RWHV.
317  rwhv->ImeCancelComposition();
318}
319
320#if defined(OS_MACOSX) || defined(OS_WIN) || defined(USE_AURA)
321void RenderWidgetHostViewGuest::ImeCompositionRangeChanged(
322    const gfx::Range& range,
323    const std::vector<gfx::Rect>& character_bounds) {
324  if (!guest_)
325    return;
326
327  RenderWidgetHostViewPort* rwhv = RenderWidgetHostViewPort::FromRWHV(
328      guest_->GetEmbedderRenderWidgetHostView());
329  if (!rwhv)
330    return;
331  std::vector<gfx::Rect> guest_character_bounds;
332  for (size_t i = 0; i < character_bounds.size(); ++i) {
333    gfx::Rect guest_rect = guest_->ToGuestRect(character_bounds[i]);
334    guest_character_bounds.push_back(guest_rect);
335  }
336  // Forward the information to embedding RWHV.
337  rwhv->ImeCompositionRangeChanged(range, guest_character_bounds);
338}
339#endif
340
341void RenderWidgetHostViewGuest::DidUpdateBackingStore(
342    const gfx::Rect& scroll_rect,
343    const gfx::Vector2d& scroll_delta,
344    const std::vector<gfx::Rect>& copy_rects,
345    const std::vector<ui::LatencyInfo>& latency_info) {
346  NOTREACHED();
347}
348
349void RenderWidgetHostViewGuest::SelectionChanged(const base::string16& text,
350                                                 size_t offset,
351                                                 const gfx::Range& range) {
352  platform_view_->SelectionChanged(text, offset, range);
353}
354
355void RenderWidgetHostViewGuest::SelectionBoundsChanged(
356    const ViewHostMsg_SelectionBounds_Params& params) {
357  if (!guest_)
358    return;
359
360  RenderWidgetHostViewPort* rwhv = RenderWidgetHostViewPort::FromRWHV(
361      guest_->GetEmbedderRenderWidgetHostView());
362  if (!rwhv)
363    return;
364  ViewHostMsg_SelectionBounds_Params guest_params(params);
365  guest_params.anchor_rect = guest_->ToGuestRect(params.anchor_rect);
366  guest_params.focus_rect = guest_->ToGuestRect(params.focus_rect);
367  rwhv->SelectionBoundsChanged(guest_params);
368}
369
370void RenderWidgetHostViewGuest::CopyFromCompositingSurface(
371    const gfx::Rect& src_subrect,
372    const gfx::Size& dst_size,
373    const base::Callback<void(bool, const SkBitmap&)>& callback,
374    const SkBitmap::Config config) {
375  CHECK(guest_);
376  guest_->CopyFromCompositingSurface(src_subrect, dst_size, callback);
377}
378
379void RenderWidgetHostViewGuest::SetBackground(const SkBitmap& background) {
380  platform_view_->SetBackground(background);
381}
382
383void RenderWidgetHostViewGuest::SetHasHorizontalScrollbar(
384    bool has_horizontal_scrollbar) {
385  platform_view_->SetHasHorizontalScrollbar(has_horizontal_scrollbar);
386}
387
388void RenderWidgetHostViewGuest::SetScrollOffsetPinning(
389    bool is_pinned_to_left, bool is_pinned_to_right) {
390  platform_view_->SetScrollOffsetPinning(
391      is_pinned_to_left, is_pinned_to_right);
392}
393
394bool RenderWidgetHostViewGuest::LockMouse() {
395  return platform_view_->LockMouse();
396}
397
398void RenderWidgetHostViewGuest::UnlockMouse() {
399  return platform_view_->UnlockMouse();
400}
401
402void RenderWidgetHostViewGuest::GetScreenInfo(blink::WebScreenInfo* results) {
403  if (!guest_)
404    return;
405  RenderWidgetHostViewPort* embedder_view =
406      RenderWidgetHostViewPort::FromRWHV(
407          guest_->GetEmbedderRenderWidgetHostView());
408  if (embedder_view)
409    embedder_view->GetScreenInfo(results);
410}
411
412#if defined(OS_MACOSX)
413void RenderWidgetHostViewGuest::SetActive(bool active) {
414  platform_view_->SetActive(active);
415}
416
417void RenderWidgetHostViewGuest::SetTakesFocusOnlyOnMouseDown(bool flag) {
418  platform_view_->SetTakesFocusOnlyOnMouseDown(flag);
419}
420
421void RenderWidgetHostViewGuest::SetWindowVisibility(bool visible) {
422  platform_view_->SetWindowVisibility(visible);
423}
424
425void RenderWidgetHostViewGuest::WindowFrameChanged() {
426  platform_view_->WindowFrameChanged();
427}
428
429void RenderWidgetHostViewGuest::ShowDefinitionForSelection() {
430  if (!guest_)
431    return;
432
433  gfx::Point origin;
434  gfx::Rect guest_bounds = GetViewBounds();
435  RenderWidgetHostView* rwhv = guest_->GetEmbedderRenderWidgetHostView();
436  gfx::Rect embedder_bounds;
437  if (rwhv)
438    embedder_bounds = rwhv->GetViewBounds();
439
440  gfx::Vector2d guest_offset = gfx::Vector2d(
441      // Horizontal offset of guest from embedder.
442      guest_bounds.x() - embedder_bounds.x(),
443      // Vertical offset from guest's top to embedder's bottom edge.
444      embedder_bounds.bottom() - guest_bounds.y());
445
446  RenderWidgetHostViewMacDictionaryHelper helper(platform_view_);
447  helper.SetTargetView(rwhv);
448  helper.set_offset(guest_offset);
449  helper.ShowDefinitionForSelection();
450}
451
452bool RenderWidgetHostViewGuest::SupportsSpeech() const {
453  return platform_view_->SupportsSpeech();
454}
455
456void RenderWidgetHostViewGuest::SpeakSelection() {
457  platform_view_->SpeakSelection();
458}
459
460bool RenderWidgetHostViewGuest::IsSpeaking() const {
461  return platform_view_->IsSpeaking();
462}
463
464void RenderWidgetHostViewGuest::StopSpeaking() {
465  platform_view_->StopSpeaking();
466}
467
468bool RenderWidgetHostViewGuest::PostProcessEventForPluginIme(
469    const NativeWebKeyboardEvent& event) {
470  return false;
471}
472
473#endif  // defined(OS_MACOSX)
474
475#if defined(OS_ANDROID)
476void RenderWidgetHostViewGuest::ShowDisambiguationPopup(
477    const gfx::Rect& target_rect,
478    const SkBitmap& zoomed_bitmap) {
479}
480#endif  // defined(OS_ANDROID)
481
482#if defined(TOOLKIT_GTK)
483GdkEventButton* RenderWidgetHostViewGuest::GetLastMouseDown() {
484  return NULL;
485}
486
487gfx::NativeView RenderWidgetHostViewGuest::BuildInputMethodsGtkMenu() {
488  return platform_view_->BuildInputMethodsGtkMenu();
489}
490#endif  // defined(TOOLKIT_GTK)
491
492#if defined(OS_WIN)
493void RenderWidgetHostViewGuest::SetParentNativeViewAccessible(
494    gfx::NativeViewAccessible accessible_parent) {
495}
496
497gfx::NativeViewId RenderWidgetHostViewGuest::GetParentForWindowlessPlugin()
498    const {
499  return NULL;
500}
501#endif
502
503void RenderWidgetHostViewGuest::DestroyGuestView() {
504  host_->SetView(NULL);
505  host_ = NULL;
506  base::MessageLoop::current()->DeleteSoon(FROM_HERE, this);
507}
508
509bool RenderWidgetHostViewGuest::CanDispatchToConsumer(
510    ui::GestureConsumer* consumer) {
511  CHECK_EQ(static_cast<RenderWidgetHostViewGuest*>(consumer), this);
512  return true;
513}
514
515void RenderWidgetHostViewGuest::DispatchPostponedGestureEvent(
516    ui::GestureEvent* event) {
517  ForwardGestureEventToRenderer(event);
518}
519
520void RenderWidgetHostViewGuest::DispatchCancelTouchEvent(
521    ui::TouchEvent* event) {
522  if (!host_)
523    return;
524
525  blink::WebTouchEvent cancel_event;
526  cancel_event.type = blink::WebInputEvent::TouchCancel;
527  cancel_event.timeStampSeconds = event->time_stamp().InSecondsF();
528  host_->ForwardTouchEventWithLatencyInfo(cancel_event, *event->latency());
529}
530
531bool RenderWidgetHostViewGuest::ForwardGestureEventToRenderer(
532    ui::GestureEvent* gesture) {
533#if defined(OS_WIN) || defined(USE_AURA)
534  if (!host_)
535    return false;
536
537  if ((gesture->type() == ui::ET_GESTURE_PINCH_BEGIN ||
538      gesture->type() == ui::ET_GESTURE_PINCH_UPDATE ||
539      gesture->type() == ui::ET_GESTURE_PINCH_END) && !pinch_zoom_enabled_) {
540    return true;
541  }
542
543  blink::WebGestureEvent web_gesture =
544      MakeWebGestureEventFromUIEvent(*gesture);
545  const gfx::Point& client_point = gesture->location();
546  const gfx::Point& screen_point = gesture->location();
547
548  web_gesture.x = client_point.x();
549  web_gesture.y = client_point.y();
550  web_gesture.globalX = screen_point.x();
551  web_gesture.globalY = screen_point.y();
552
553  if (web_gesture.type == blink::WebGestureEvent::Undefined)
554    return false;
555  if (web_gesture.type == blink::WebGestureEvent::GestureTapDown) {
556    host_->ForwardGestureEvent(
557        CreateFlingCancelEvent(gesture->time_stamp().InSecondsF()));
558  }
559  host_->ForwardGestureEvent(web_gesture);
560  return true;
561#else
562  return false;
563#endif
564}
565
566void RenderWidgetHostViewGuest::ProcessGestures(
567    ui::GestureRecognizer::Gestures* gestures) {
568  if ((gestures == NULL) || gestures->empty())
569    return;
570  for (ui::GestureRecognizer::Gestures::iterator g_it = gestures->begin();
571      g_it != gestures->end();
572      ++g_it) {
573    ForwardGestureEventToRenderer(*g_it);
574  }
575}
576
577
578}  // namespace content
579