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.
5 #include "content/renderer/render_widget.h"
7 #include "base/auto_reset.h"
9 #include "base/command_line.h"
10 #include "base/debug/trace_event.h"
11 #include "base/debug/trace_event_synthetic_delay.h"
12 #include "base/logging.h"
13 #include "base/memory/scoped_ptr.h"
14 #include "base/memory/singleton.h"
15 #include "base/message_loop/message_loop.h"
16 #include "base/metrics/histogram.h"
17 #include "base/stl_util.h"
18 #include "base/strings/utf_string_conversions.h"
19 #include "build/build_config.h"
20 #include "cc/base/switches.h"
21 #include "cc/debug/benchmark_instrumentation.h"
22 #include "cc/output/output_surface.h"
23 #include "cc/trees/layer_tree_host.h"
24 #include "content/child/npapi/webplugin.h"
25 #include "content/common/gpu/client/context_provider_command_buffer.h"
26 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
27 #include "content/common/gpu/gpu_process_launch_causes.h"
28 #include "content/common/input/synthetic_gesture_packet.h"
29 #include "content/common/input/web_input_event_traits.h"
30 #include "content/common/input_messages.h"
31 #include "content/common/swapped_out_messages.h"
32 #include "content/common/view_messages.h"
33 #include "content/public/common/content_switches.h"
34 #include "content/public/common/context_menu_params.h"
35 #include "content/renderer/cursor_utils.h"
36 #include "content/renderer/external_popup_menu.h"
37 #include "content/renderer/gpu/compositor_output_surface.h"
38 #include "content/renderer/gpu/compositor_software_output_device.h"
39 #include "content/renderer/gpu/delegated_compositor_output_surface.h"
40 #include "content/renderer/gpu/mailbox_output_surface.h"
41 #include "content/renderer/gpu/render_widget_compositor.h"
42 #include "content/renderer/ime_event_guard.h"
43 #include "content/renderer/input/input_handler_manager.h"
44 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
45 #include "content/renderer/render_frame_impl.h"
46 #include "content/renderer/render_frame_proxy.h"
47 #include "content/renderer/render_process.h"
48 #include "content/renderer/render_thread_impl.h"
49 #include "content/renderer/renderer_webkitplatformsupport_impl.h"
50 #include "content/renderer/resizing_mode_selector.h"
51 #include "ipc/ipc_sync_message.h"
52 #include "skia/ext/platform_canvas.h"
53 #include "third_party/WebKit/public/platform/WebCursorInfo.h"
54 #include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
55 #include "third_party/WebKit/public/platform/WebRect.h"
56 #include "third_party/WebKit/public/platform/WebScreenInfo.h"
57 #include "third_party/WebKit/public/platform/WebSize.h"
58 #include "third_party/WebKit/public/platform/WebString.h"
59 #include "third_party/WebKit/public/web/WebDeviceEmulationParams.h"
60 #include "third_party/WebKit/public/web/WebPagePopup.h"
61 #include "third_party/WebKit/public/web/WebPopupMenu.h"
62 #include "third_party/WebKit/public/web/WebPopupMenuInfo.h"
63 #include "third_party/WebKit/public/web/WebRange.h"
64 #include "third_party/skia/include/core/SkShader.h"
65 #include "ui/base/ui_base_switches.h"
66 #include "ui/gfx/frame_time.h"
67 #include "ui/gfx/point_conversions.h"
68 #include "ui/gfx/rect_conversions.h"
69 #include "ui/gfx/size_conversions.h"
70 #include "ui/gfx/skia_util.h"
71 #include "ui/gl/gl_switches.h"
72 #include "ui/surface/transport_dib.h"
74 #if defined(OS_ANDROID)
75 #include <android/keycodes.h>
76 #include "base/android/sys_utils.h"
77 #include "content/renderer/android/synchronous_compositor_factory.h"
81 #include "ipc/ipc_channel_posix.h"
82 #include "third_party/skia/include/core/SkMallocPixelRef.h"
83 #include "third_party/skia/include/core/SkPixelRef.h"
84 #endif // defined(OS_POSIX)
86 #include "third_party/WebKit/public/web/WebWidget.h"
88 using blink::WebCompositionUnderline;
89 using blink::WebCursorInfo;
90 using blink::WebDeviceEmulationParams;
91 using blink::WebGestureEvent;
92 using blink::WebInputEvent;
93 using blink::WebKeyboardEvent;
94 using blink::WebMouseEvent;
95 using blink::WebMouseWheelEvent;
96 using blink::WebNavigationPolicy;
97 using blink::WebPagePopup;
98 using blink::WebPopupMenu;
99 using blink::WebPopupMenuInfo;
100 using blink::WebPopupType;
101 using blink::WebRange;
102 using blink::WebRect;
103 using blink::WebScreenInfo;
104 using blink::WebSize;
105 using blink::WebTextDirection;
106 using blink::WebTouchEvent;
107 using blink::WebTouchPoint;
108 using blink::WebVector;
109 using blink::WebWidget;
113 typedef std::map<std::string, ui::TextInputMode> TextInputModeMap;
115 class TextInputModeMapSingleton {
117 static TextInputModeMapSingleton* GetInstance() {
118 return Singleton<TextInputModeMapSingleton>::get();
120 TextInputModeMapSingleton() {
121 map_["verbatim"] = ui::TEXT_INPUT_MODE_VERBATIM;
122 map_["latin"] = ui::TEXT_INPUT_MODE_LATIN;
123 map_["latin-name"] = ui::TEXT_INPUT_MODE_LATIN_NAME;
124 map_["latin-prose"] = ui::TEXT_INPUT_MODE_LATIN_PROSE;
125 map_["full-width-latin"] = ui::TEXT_INPUT_MODE_FULL_WIDTH_LATIN;
126 map_["kana"] = ui::TEXT_INPUT_MODE_KANA;
127 map_["katakana"] = ui::TEXT_INPUT_MODE_KATAKANA;
128 map_["numeric"] = ui::TEXT_INPUT_MODE_NUMERIC;
129 map_["tel"] = ui::TEXT_INPUT_MODE_TEL;
130 map_["email"] = ui::TEXT_INPUT_MODE_EMAIL;
131 map_["url"] = ui::TEXT_INPUT_MODE_URL;
133 const TextInputModeMap& map() const { return map_; }
135 TextInputModeMap map_;
137 friend struct DefaultSingletonTraits<TextInputModeMapSingleton>;
139 DISALLOW_COPY_AND_ASSIGN(TextInputModeMapSingleton);
142 ui::TextInputMode ConvertInputMode(const blink::WebString& input_mode) {
143 static TextInputModeMapSingleton* singleton =
144 TextInputModeMapSingleton::GetInstance();
145 TextInputModeMap::const_iterator it =
146 singleton->map().find(input_mode.utf8());
147 if (it == singleton->map().end())
148 return ui::TEXT_INPUT_MODE_DEFAULT;
152 // TODO(brianderson): Replace the hard-coded threshold with a fraction of
153 // the BeginMainFrame interval.
154 // 4166us will allow 1/4 of a 60Hz interval or 1/2 of a 120Hz interval to
155 // be spent in input hanlders before input starts getting throttled.
156 const int kInputHandlingTimeThrottlingThresholdMicroseconds = 4166;
162 // RenderWidget::ScreenMetricsEmulator ----------------------------------------
164 class RenderWidget::ScreenMetricsEmulator {
166 ScreenMetricsEmulator(
167 RenderWidget* widget,
168 const WebDeviceEmulationParams& params);
169 virtual ~ScreenMetricsEmulator();
171 // Scale and offset used to convert between host coordinates
172 // and webwidget coordinates.
173 float scale() { return scale_; }
174 gfx::Point offset() { return offset_; }
175 gfx::Rect applied_widget_rect() const { return applied_widget_rect_; }
176 gfx::Rect original_screen_rect() const { return original_view_screen_rect_; }
177 const WebScreenInfo& original_screen_info() { return original_screen_info_; }
179 void ChangeEmulationParams(
180 const WebDeviceEmulationParams& params);
182 // The following methods alter handlers' behavior for messages related to
183 // widget size and position.
184 void OnResizeMessage(const ViewMsg_Resize_Params& params);
185 void OnUpdateScreenRectsMessage(const gfx::Rect& view_screen_rect,
186 const gfx::Rect& window_screen_rect);
187 void OnShowContextMenu(ContextMenuParams* params);
191 void Apply(float overdraw_bottom_height,
192 gfx::Rect resizer_rect,
195 RenderWidget* widget_;
197 // Parameters as passed by RenderWidget::EnableScreenMetricsEmulation.
198 WebDeviceEmulationParams params_;
200 // The computed scale and offset used to fit widget into browser window.
204 // Widget rect as passed to webwidget.
205 gfx::Rect applied_widget_rect_;
207 // Original values to restore back after emulation ends.
208 gfx::Size original_size_;
209 gfx::Size original_physical_backing_size_;
210 gfx::Size original_visible_viewport_size_;
211 blink::WebScreenInfo original_screen_info_;
212 gfx::Rect original_view_screen_rect_;
213 gfx::Rect original_window_screen_rect_;
216 RenderWidget::ScreenMetricsEmulator::ScreenMetricsEmulator(
217 RenderWidget* widget,
218 const WebDeviceEmulationParams& params)
222 original_size_ = widget_->size_;
223 original_physical_backing_size_ = widget_->physical_backing_size_;
224 original_visible_viewport_size_ = widget_->visible_viewport_size_;
225 original_screen_info_ = widget_->screen_info_;
226 original_view_screen_rect_ = widget_->view_screen_rect_;
227 original_window_screen_rect_ = widget_->window_screen_rect_;
228 Apply(widget_->overdraw_bottom_height_, widget_->resizer_rect_,
229 widget_->is_fullscreen_);
232 RenderWidget::ScreenMetricsEmulator::~ScreenMetricsEmulator() {
233 widget_->screen_info_ = original_screen_info_;
235 widget_->SetDeviceScaleFactor(original_screen_info_.deviceScaleFactor);
236 widget_->SetScreenMetricsEmulationParameters(0.f, gfx::Point(), 1.f);
237 widget_->view_screen_rect_ = original_view_screen_rect_;
238 widget_->window_screen_rect_ = original_window_screen_rect_;
239 widget_->Resize(original_size_, original_physical_backing_size_,
240 widget_->overdraw_bottom_height_, original_visible_viewport_size_,
241 widget_->resizer_rect_, widget_->is_fullscreen_, NO_RESIZE_ACK);
244 void RenderWidget::ScreenMetricsEmulator::ChangeEmulationParams(
245 const WebDeviceEmulationParams& params) {
250 void RenderWidget::ScreenMetricsEmulator::Reapply() {
251 Apply(widget_->overdraw_bottom_height_, widget_->resizer_rect_,
252 widget_->is_fullscreen_);
255 void RenderWidget::ScreenMetricsEmulator::Apply(
256 float overdraw_bottom_height,
257 gfx::Rect resizer_rect,
258 bool is_fullscreen) {
259 applied_widget_rect_.set_size(gfx::Size(params_.viewSize));
260 if (!applied_widget_rect_.width())
261 applied_widget_rect_.set_width(original_size_.width());
262 if (!applied_widget_rect_.height())
263 applied_widget_rect_.set_height(original_size_.height());
265 if (params_.fitToView && !original_size_.IsEmpty()) {
266 int original_width = std::max(original_size_.width(), 1);
267 int original_height = std::max(original_size_.height(), 1);
269 static_cast<float>(applied_widget_rect_.width()) / original_width;
271 static_cast<float>(applied_widget_rect_.height()) / original_height;
272 float ratio = std::max(1.0f, std::max(width_ratio, height_ratio));
273 scale_ = 1.f / ratio;
275 // Center emulated view inside available view space.
277 (original_size_.width() - scale_ * applied_widget_rect_.width()) / 2);
279 (original_size_.height() - scale_ * applied_widget_rect_.height()) / 2);
281 scale_ = params_.scale;
282 offset_.SetPoint(params_.offset.x, params_.offset.y);
285 if (params_.screenPosition == WebDeviceEmulationParams::Desktop) {
286 applied_widget_rect_.set_origin(original_view_screen_rect_.origin());
287 widget_->screen_info_.rect = original_screen_info_.rect;
288 widget_->screen_info_.availableRect = original_screen_info_.availableRect;
289 widget_->window_screen_rect_ = original_window_screen_rect_;
291 applied_widget_rect_.set_origin(gfx::Point(0, 0));
292 widget_->screen_info_.rect = applied_widget_rect_;
293 widget_->screen_info_.availableRect = applied_widget_rect_;
294 widget_->window_screen_rect_ = applied_widget_rect_;
297 float applied_device_scale_factor = params_.deviceScaleFactor ?
298 params_.deviceScaleFactor : original_screen_info_.deviceScaleFactor;
299 widget_->screen_info_.deviceScaleFactor = applied_device_scale_factor;
301 // Pass three emulation parameters to the blink side:
302 // - we keep the real device scale factor in compositor to produce sharp image
303 // even when emulating different scale factor;
304 // - in order to fit into view, WebView applies offset and scale to the
306 widget_->SetScreenMetricsEmulationParameters(
307 original_screen_info_.deviceScaleFactor, offset_, scale_);
309 widget_->SetDeviceScaleFactor(applied_device_scale_factor);
310 widget_->view_screen_rect_ = applied_widget_rect_;
312 gfx::Size physical_backing_size = gfx::ToCeiledSize(gfx::ScaleSize(
313 original_size_, original_screen_info_.deviceScaleFactor));
314 widget_->Resize(applied_widget_rect_.size(), physical_backing_size,
315 overdraw_bottom_height, applied_widget_rect_.size(), resizer_rect,
316 is_fullscreen, NO_RESIZE_ACK);
319 void RenderWidget::ScreenMetricsEmulator::OnResizeMessage(
320 const ViewMsg_Resize_Params& params) {
321 bool need_ack = params.new_size != original_size_ &&
322 !params.new_size.IsEmpty() && !params.physical_backing_size.IsEmpty();
323 original_size_ = params.new_size;
324 original_physical_backing_size_ = params.physical_backing_size;
325 original_screen_info_ = params.screen_info;
326 original_visible_viewport_size_ = params.visible_viewport_size;
327 Apply(params.overdraw_bottom_height, params.resizer_rect,
328 params.is_fullscreen);
331 widget_->set_next_paint_is_resize_ack();
332 if (widget_->compositor_)
333 widget_->compositor_->SetNeedsRedrawRect(gfx::Rect(widget_->size_));
337 void RenderWidget::ScreenMetricsEmulator::OnUpdateScreenRectsMessage(
338 const gfx::Rect& view_screen_rect,
339 const gfx::Rect& window_screen_rect) {
340 original_view_screen_rect_ = view_screen_rect;
341 original_window_screen_rect_ = window_screen_rect;
342 if (params_.screenPosition == WebDeviceEmulationParams::Desktop)
346 void RenderWidget::ScreenMetricsEmulator::OnShowContextMenu(
347 ContextMenuParams* params) {
349 params->x += offset_.x();
351 params->y += offset_.y();
354 // RenderWidget ---------------------------------------------------------------
356 RenderWidget::RenderWidget(blink::WebPopupType popup_type,
357 const blink::WebScreenInfo& screen_info,
361 : routing_id_(MSG_ROUTING_NONE),
364 opener_id_(MSG_ROUTING_NONE),
365 init_complete_(false),
366 overdraw_bottom_height_(0.f),
367 next_paint_flags_(0),
368 auto_resize_mode_(false),
369 need_update_rect_for_auto_resize_(false),
372 never_visible_(never_visible),
373 is_fullscreen_(false),
375 handling_input_event_(false),
376 handling_ime_event_(false),
377 handling_event_type_(WebInputEvent::Undefined),
378 ignore_ack_for_mouse_move_from_debugger_(false),
380 is_swapped_out_(swapped_out),
381 input_method_is_active_(false),
382 text_input_type_(ui::TEXT_INPUT_TYPE_NONE),
383 text_input_mode_(ui::TEXT_INPUT_MODE_DEFAULT),
384 can_compose_inline_(true),
385 popup_type_(popup_type),
386 pending_window_rect_count_(0),
387 suppress_next_char_events_(false),
388 screen_info_(screen_info),
389 device_scale_factor_(screen_info_.deviceScaleFactor),
390 is_threaded_compositing_enabled_(false),
391 current_event_latency_info_(NULL),
392 next_output_surface_id_(0),
393 #if defined(OS_ANDROID)
394 text_field_is_dirty_(false),
395 outstanding_ime_acks_(0),
396 body_background_color_(SK_ColorWHITE),
398 popup_origin_scale_for_emulation_(0.f),
399 resizing_mode_selector_(new ResizingModeSelector()),
400 context_menu_source_type_(ui::MENU_SOURCE_MOUSE) {
402 RenderProcess::current()->AddRefProcess();
403 DCHECK(RenderThread::Get());
404 is_threaded_compositing_enabled_ =
405 CommandLine::ForCurrentProcess()->HasSwitch(
406 switches::kEnableThreadedCompositing);
409 RenderWidget::~RenderWidget() {
410 DCHECK(!webwidget_) << "Leaking our WebWidget!";
412 // If we are swapped out, we have released already.
413 if (!is_swapped_out_ && RenderProcess::current())
414 RenderProcess::current()->ReleaseProcess();
418 RenderWidget* RenderWidget::Create(int32 opener_id,
419 blink::WebPopupType popup_type,
420 const blink::WebScreenInfo& screen_info) {
421 DCHECK(opener_id != MSG_ROUTING_NONE);
422 scoped_refptr<RenderWidget> widget(
423 new RenderWidget(popup_type, screen_info, false, false, false));
424 if (widget->Init(opener_id)) { // adds reference on success.
431 WebWidget* RenderWidget::CreateWebWidget(RenderWidget* render_widget) {
432 switch (render_widget->popup_type_) {
433 case blink::WebPopupTypeNone: // Nothing to create.
435 case blink::WebPopupTypeSelect:
436 case blink::WebPopupTypeSuggestion:
437 return WebPopupMenu::create(render_widget);
438 case blink::WebPopupTypePage:
439 return WebPagePopup::create(render_widget);
446 bool RenderWidget::Init(int32 opener_id) {
447 return DoInit(opener_id,
448 RenderWidget::CreateWebWidget(this),
449 new ViewHostMsg_CreateWidget(opener_id, popup_type_,
450 &routing_id_, &surface_id_));
453 bool RenderWidget::DoInit(int32 opener_id,
454 WebWidget* web_widget,
455 IPC::SyncMessage* create_widget_message) {
458 if (opener_id != MSG_ROUTING_NONE)
459 opener_id_ = opener_id;
461 webwidget_ = web_widget;
463 bool result = RenderThread::Get()->Send(create_widget_message);
465 RenderThread::Get()->AddRoute(routing_id_, this);
466 // Take a reference on behalf of the RenderThread. This will be balanced
467 // when we receive ViewMsg_Close.
469 if (RenderThreadImpl::current()) {
470 RenderThreadImpl::current()->WidgetCreated();
472 RenderThreadImpl::current()->WidgetHidden();
476 // The above Send can fail when the tab is closing.
481 // This is used to complete pending inits and non-pending inits.
482 void RenderWidget::CompleteInit() {
483 DCHECK(routing_id_ != MSG_ROUTING_NONE);
485 init_complete_ = true;
490 Send(new ViewHostMsg_RenderViewReady(routing_id_));
493 void RenderWidget::SetSwappedOut(bool is_swapped_out) {
494 // We should only toggle between states.
495 DCHECK(is_swapped_out_ != is_swapped_out);
496 is_swapped_out_ = is_swapped_out;
498 // If we are swapping out, we will call ReleaseProcess, allowing the process
499 // to exit if all of its RenderViews are swapped out. We wait until the
500 // WasSwappedOut call to do this, to avoid showing the sad tab.
501 // If we are swapping in, we call AddRefProcess to prevent the process from
504 RenderProcess::current()->AddRefProcess();
507 void RenderWidget::EnableScreenMetricsEmulation(
508 const WebDeviceEmulationParams& params) {
509 if (!screen_metrics_emulator_)
510 screen_metrics_emulator_.reset(new ScreenMetricsEmulator(this, params));
512 screen_metrics_emulator_->ChangeEmulationParams(params);
515 void RenderWidget::DisableScreenMetricsEmulation() {
516 screen_metrics_emulator_.reset();
519 void RenderWidget::SetPopupOriginAdjustmentsForEmulation(
520 ScreenMetricsEmulator* emulator) {
521 popup_origin_scale_for_emulation_ = emulator->scale();
522 popup_view_origin_for_emulation_ = emulator->applied_widget_rect().origin();
523 popup_screen_origin_for_emulation_ = gfx::Point(
524 emulator->original_screen_rect().origin().x() + emulator->offset().x(),
525 emulator->original_screen_rect().origin().y() + emulator->offset().y());
526 screen_info_ = emulator->original_screen_info();
527 device_scale_factor_ = screen_info_.deviceScaleFactor;
530 void RenderWidget::SetScreenMetricsEmulationParameters(
531 float device_scale_factor,
532 const gfx::Point& root_layer_offset,
533 float root_layer_scale) {
534 // This is only supported in RenderView.
538 #if defined(OS_MACOSX) || defined(OS_ANDROID)
539 void RenderWidget::SetExternalPopupOriginAdjustmentsForEmulation(
540 ExternalPopupMenu* popup, ScreenMetricsEmulator* emulator) {
541 popup->SetOriginScaleAndOffsetForEmulation(
542 emulator->scale(), emulator->offset());
546 void RenderWidget::OnShowHostContextMenu(ContextMenuParams* params) {
547 if (screen_metrics_emulator_)
548 screen_metrics_emulator_->OnShowContextMenu(params);
551 void RenderWidget::ScheduleCompositeWithForcedRedraw() {
553 // Regardless of whether threaded compositing is enabled, always
554 // use this mechanism to force the compositor to redraw. However,
555 // the invalidation code path below is still needed for the
556 // non-threaded case.
557 compositor_->SetNeedsForcedRedraw();
562 bool RenderWidget::OnMessageReceived(const IPC::Message& message) {
564 IPC_BEGIN_MESSAGE_MAP(RenderWidget, message)
565 IPC_MESSAGE_HANDLER(InputMsg_HandleInputEvent, OnHandleInputEvent)
566 IPC_MESSAGE_HANDLER(InputMsg_CursorVisibilityChange,
567 OnCursorVisibilityChange)
568 IPC_MESSAGE_HANDLER(InputMsg_MouseCaptureLost, OnMouseCaptureLost)
569 IPC_MESSAGE_HANDLER(InputMsg_SetFocus, OnSetFocus)
570 IPC_MESSAGE_HANDLER(InputMsg_SyntheticGestureCompleted,
571 OnSyntheticGestureCompleted)
572 IPC_MESSAGE_HANDLER(ViewMsg_Close, OnClose)
573 IPC_MESSAGE_HANDLER(ViewMsg_CreatingNew_ACK, OnCreatingNewAck)
574 IPC_MESSAGE_HANDLER(ViewMsg_Resize, OnResize)
575 IPC_MESSAGE_HANDLER(ViewMsg_ChangeResizeRect, OnChangeResizeRect)
576 IPC_MESSAGE_HANDLER(ViewMsg_WasHidden, OnWasHidden)
577 IPC_MESSAGE_HANDLER(ViewMsg_WasShown, OnWasShown)
578 IPC_MESSAGE_HANDLER(ViewMsg_WasSwappedOut, OnWasSwappedOut)
579 IPC_MESSAGE_HANDLER(ViewMsg_SetInputMethodActive, OnSetInputMethodActive)
580 IPC_MESSAGE_HANDLER(ViewMsg_CandidateWindowShown, OnCandidateWindowShown)
581 IPC_MESSAGE_HANDLER(ViewMsg_CandidateWindowUpdated,
582 OnCandidateWindowUpdated)
583 IPC_MESSAGE_HANDLER(ViewMsg_CandidateWindowHidden, OnCandidateWindowHidden)
584 IPC_MESSAGE_HANDLER(ViewMsg_ImeSetComposition, OnImeSetComposition)
585 IPC_MESSAGE_HANDLER(ViewMsg_ImeConfirmComposition, OnImeConfirmComposition)
586 IPC_MESSAGE_HANDLER(ViewMsg_Repaint, OnRepaint)
587 IPC_MESSAGE_HANDLER(ViewMsg_SetTextDirection, OnSetTextDirection)
588 IPC_MESSAGE_HANDLER(ViewMsg_Move_ACK, OnRequestMoveAck)
589 IPC_MESSAGE_HANDLER(ViewMsg_UpdateScreenRects, OnUpdateScreenRects)
590 #if defined(OS_ANDROID)
591 IPC_MESSAGE_HANDLER(ViewMsg_ShowImeIfNeeded, OnShowImeIfNeeded)
592 IPC_MESSAGE_HANDLER(ViewMsg_ImeEventAck, OnImeEventAck)
594 IPC_MESSAGE_UNHANDLED(handled = false)
595 IPC_END_MESSAGE_MAP()
599 bool RenderWidget::Send(IPC::Message* message) {
600 // Don't send any messages after the browser has told us to close, and filter
601 // most outgoing messages while swapped out.
602 if ((is_swapped_out_ &&
603 !SwappedOutMessages::CanSendWhileSwappedOut(message)) ||
609 // If given a messsage without a routing ID, then assign our routing ID.
610 if (message->routing_id() == MSG_ROUTING_NONE)
611 message->set_routing_id(routing_id_);
613 return RenderThread::Get()->Send(message);
616 void RenderWidget::Resize(const gfx::Size& new_size,
617 const gfx::Size& physical_backing_size,
618 float overdraw_bottom_height,
619 const gfx::Size& visible_viewport_size,
620 const gfx::Rect& resizer_rect,
622 ResizeAck resize_ack) {
623 if (resizing_mode_selector_->NeverUsesSynchronousResize()) {
624 // A resize ack shouldn't be requested if we have not ACK'd the previous
626 DCHECK(resize_ack != SEND_RESIZE_ACK || !next_paint_is_resize_ack());
627 DCHECK(resize_ack == SEND_RESIZE_ACK || resize_ack == NO_RESIZE_ACK);
630 // Ignore this during shutdown.
635 compositor_->setViewportSize(new_size, physical_backing_size);
636 compositor_->SetOverdrawBottomHeight(overdraw_bottom_height);
639 physical_backing_size_ = physical_backing_size;
640 overdraw_bottom_height_ = overdraw_bottom_height;
641 visible_viewport_size_ = visible_viewport_size;
642 resizer_rect_ = resizer_rect;
644 // NOTE: We may have entered fullscreen mode without changing our size.
645 bool fullscreen_change = is_fullscreen_ != is_fullscreen;
646 if (fullscreen_change)
647 WillToggleFullscreen();
648 is_fullscreen_ = is_fullscreen;
650 if (size_ != new_size) {
653 // When resizing, we want to wait to paint before ACK'ing the resize. This
654 // ensures that we only resize as fast as we can paint. We only need to
655 // send an ACK if we are resized to a non-empty rect.
656 webwidget_->resize(new_size);
657 } else if (!resizing_mode_selector_->is_synchronous_mode()) {
658 resize_ack = NO_RESIZE_ACK;
661 webwidget()->resizePinchViewport(gfx::Size(
662 visible_viewport_size.width(),
663 visible_viewport_size.height()));
665 if (new_size.IsEmpty() || physical_backing_size.IsEmpty()) {
666 // For empty size or empty physical_backing_size, there is no next paint
667 // (along with which to send the ack) until they are set to non-empty.
668 resize_ack = NO_RESIZE_ACK;
671 // Send the Resize_ACK flag once we paint again if requested.
672 if (resize_ack == SEND_RESIZE_ACK)
673 set_next_paint_is_resize_ack();
675 if (fullscreen_change)
676 DidToggleFullscreen();
678 // If a resize ack is requested and it isn't set-up, then no more resizes will
679 // come in and in general things will go wrong.
680 DCHECK(resize_ack != SEND_RESIZE_ACK || next_paint_is_resize_ack());
683 void RenderWidget::ResizeSynchronously(const gfx::Rect& new_position) {
684 Resize(new_position.size(), new_position.size(), overdraw_bottom_height_,
685 visible_viewport_size_, gfx::Rect(), is_fullscreen_, NO_RESIZE_ACK);
686 view_screen_rect_ = new_position;
687 window_screen_rect_ = new_position;
689 initial_pos_ = new_position;
692 void RenderWidget::OnClose() {
697 // Browser correspondence is no longer needed at this point.
698 if (routing_id_ != MSG_ROUTING_NONE) {
699 if (RenderThreadImpl::current())
700 RenderThreadImpl::current()->WidgetDestroyed();
701 RenderThread::Get()->RemoveRoute(routing_id_);
705 // If there is a Send call on the stack, then it could be dangerous to close
706 // now. Post a task that only gets invoked when there are no nested message
708 base::MessageLoop::current()->PostNonNestableTask(
709 FROM_HERE, base::Bind(&RenderWidget::Close, this));
711 // Balances the AddRef taken when we called AddRoute.
715 // Got a response from the browser after the renderer decided to create a new
717 void RenderWidget::OnCreatingNewAck() {
718 DCHECK(routing_id_ != MSG_ROUTING_NONE);
723 void RenderWidget::OnResize(const ViewMsg_Resize_Params& params) {
724 if (resizing_mode_selector_->ShouldAbortOnResize(this, params))
727 if (screen_metrics_emulator_) {
728 screen_metrics_emulator_->OnResizeMessage(params);
732 bool orientation_changed =
733 screen_info_.orientationAngle != params.screen_info.orientationAngle;
735 screen_info_ = params.screen_info;
736 SetDeviceScaleFactor(screen_info_.deviceScaleFactor);
737 Resize(params.new_size, params.physical_backing_size,
738 params.overdraw_bottom_height, params.visible_viewport_size,
739 params.resizer_rect, params.is_fullscreen, SEND_RESIZE_ACK);
741 if (orientation_changed)
742 OnOrientationChange();
745 void RenderWidget::OnChangeResizeRect(const gfx::Rect& resizer_rect) {
746 if (resizer_rect_ == resizer_rect)
748 resizer_rect_ = resizer_rect;
750 webwidget_->didChangeWindowResizerRect();
753 void RenderWidget::OnWasHidden() {
754 TRACE_EVENT0("renderer", "RenderWidget::OnWasHidden");
755 // Go into a mode where we stop generating paint and scrolling events.
757 FOR_EACH_OBSERVER(RenderFrameImpl, render_frames_,
761 void RenderWidget::OnWasShown(bool needs_repainting) {
762 TRACE_EVENT0("renderer", "RenderWidget::OnWasShown");
763 // During shutdown we can just ignore this message.
769 FOR_EACH_OBSERVER(RenderFrameImpl, render_frames_,
772 if (!needs_repainting)
775 // Generate a full repaint.
777 compositor_->SetNeedsForcedRedraw();
781 void RenderWidget::OnWasSwappedOut() {
782 // If we have been swapped out and no one else is using this process,
783 // it's safe to exit now. If we get swapped back in, we will call
784 // AddRefProcess in SetSwappedOut.
786 RenderProcess::current()->ReleaseProcess();
789 void RenderWidget::OnRequestMoveAck() {
790 DCHECK(pending_window_rect_count_);
791 pending_window_rect_count_--;
794 GURL RenderWidget::GetURLForGraphicsContext3D() {
798 scoped_ptr<cc::OutputSurface> RenderWidget::CreateOutputSurface(bool fallback) {
799 // For widgets that are never visible, we don't start the compositor, so we
800 // never get a request for a cc::OutputSurface.
801 DCHECK(!never_visible_);
803 #if defined(OS_ANDROID)
804 if (SynchronousCompositorFactory* factory =
805 SynchronousCompositorFactory::GetInstance()) {
806 return factory->CreateOutputSurface(routing_id());
810 const CommandLine& command_line = *CommandLine::ForCurrentProcess();
811 bool use_software = fallback;
812 if (command_line.HasSwitch(switches::kDisableGpuCompositing))
815 scoped_refptr<ContextProviderCommandBuffer> context_provider;
817 context_provider = ContextProviderCommandBuffer::Create(
818 CreateGraphicsContext3D(), "RenderCompositor");
819 if (!context_provider.get()) {
820 // Cause the compositor to wait and try again.
821 return scoped_ptr<cc::OutputSurface>();
825 uint32 output_surface_id = next_output_surface_id_++;
826 if (command_line.HasSwitch(switches::kEnableDelegatedRenderer)) {
827 DCHECK(is_threaded_compositing_enabled_);
828 return scoped_ptr<cc::OutputSurface>(
829 new DelegatedCompositorOutputSurface(
834 if (!context_provider.get()) {
835 scoped_ptr<cc::SoftwareOutputDevice> software_device(
836 new CompositorSoftwareOutputDevice());
838 return scoped_ptr<cc::OutputSurface>(new CompositorOutputSurface(
842 software_device.Pass(),
846 if (command_line.HasSwitch(cc::switches::kCompositeToMailbox)) {
847 // Composite-to-mailbox is currently used for layout tests in order to cause
848 // them to draw inside in the renderer to do the readback there. This should
849 // no longer be the case when crbug.com/311404 is fixed.
850 DCHECK(is_threaded_compositing_enabled_ ||
851 RenderThreadImpl::current()->layout_test_mode());
852 cc::ResourceFormat format = cc::RGBA_8888;
853 #if defined(OS_ANDROID)
854 if (base::android::SysUtils::IsLowEndDevice())
855 format = cc::RGB_565;
857 return scoped_ptr<cc::OutputSurface>(
858 new MailboxOutputSurface(
862 scoped_ptr<cc::SoftwareOutputDevice>(),
865 bool use_swap_compositor_frame_message = false;
866 return scoped_ptr<cc::OutputSurface>(
867 new CompositorOutputSurface(
871 scoped_ptr<cc::SoftwareOutputDevice>(),
872 use_swap_compositor_frame_message));
875 void RenderWidget::OnSwapBuffersAborted() {
876 TRACE_EVENT0("renderer", "RenderWidget::OnSwapBuffersAborted");
877 // Schedule another frame so the compositor learns about it.
881 void RenderWidget::OnSwapBuffersPosted() {
882 TRACE_EVENT0("renderer", "RenderWidget::OnSwapBuffersPosted");
885 void RenderWidget::OnSwapBuffersComplete() {
886 TRACE_EVENT0("renderer", "RenderWidget::OnSwapBuffersComplete");
888 // Notify subclasses that composited rendering was flushed to the screen.
892 void RenderWidget::OnHandleInputEvent(const blink::WebInputEvent* input_event,
893 const ui::LatencyInfo& latency_info,
894 bool is_keyboard_shortcut) {
895 base::AutoReset<bool> handling_input_event_resetter(
896 &handling_input_event_, true);
899 base::AutoReset<WebInputEvent::Type> handling_event_type_resetter(
900 &handling_event_type_, input_event->type);
902 base::AutoReset<const ui::LatencyInfo*> resetter(¤t_event_latency_info_,
905 base::TimeTicks start_time;
906 if (base::TimeTicks::IsHighResNowFastAndReliable())
907 start_time = base::TimeTicks::HighResNow();
909 const char* const event_name =
910 WebInputEventTraits::GetName(input_event->type);
911 TRACE_EVENT1("renderer", "RenderWidget::OnHandleInputEvent",
912 "event", event_name);
913 TRACE_EVENT_SYNTHETIC_DELAY_BEGIN("blink.HandleInputEvent");
914 TRACE_EVENT_FLOW_STEP0(
917 TRACE_ID_DONT_MANGLE(latency_info.trace_id),
918 "HanldeInputEventMain");
920 scoped_ptr<cc::SwapPromiseMonitor> latency_info_swap_promise_monitor;
921 ui::LatencyInfo swap_latency_info(latency_info);
923 latency_info_swap_promise_monitor =
924 compositor_->CreateLatencyInfoSwapPromiseMonitor(&swap_latency_info)
928 if (base::TimeTicks::IsHighResNowFastAndReliable()) {
929 // If we don't have a high res timer, these metrics won't be accurate enough
930 // to be worth collecting. Note that this does introduce some sampling bias.
932 base::TimeDelta now = base::TimeDelta::FromInternalValue(
933 base::TimeTicks::HighResNow().ToInternalValue());
936 static_cast<int64>((now.InSecondsF() - input_event->timeStampSeconds) *
937 base::Time::kMicrosecondsPerSecond);
939 UMA_HISTOGRAM_CUSTOM_COUNTS(
940 "Event.AggregatedLatency.Renderer2", delta, 1, 10000000, 100);
941 base::HistogramBase* counter_for_type = base::Histogram::FactoryGet(
942 base::StringPrintf("Event.Latency.Renderer2.%s", event_name),
946 base::HistogramBase::kUmaTargetedHistogramFlag);
947 counter_for_type->Add(delta);
950 bool prevent_default = false;
951 if (WebInputEvent::isMouseEventType(input_event->type)) {
952 const WebMouseEvent& mouse_event =
953 *static_cast<const WebMouseEvent*>(input_event);
954 TRACE_EVENT2("renderer", "HandleMouseMove",
955 "x", mouse_event.x, "y", mouse_event.y);
956 context_menu_source_type_ = ui::MENU_SOURCE_MOUSE;
957 prevent_default = WillHandleMouseEvent(mouse_event);
960 if (WebInputEvent::isKeyboardEventType(input_event->type)) {
961 context_menu_source_type_ = ui::MENU_SOURCE_KEYBOARD;
962 #if defined(OS_ANDROID)
963 // The DPAD_CENTER key on Android has a dual semantic: (1) in the general
964 // case it should behave like a select key (i.e. causing a click if a button
965 // is focused). However, if a text field is focused (2), its intended
966 // behavior is to just show the IME and don't propagate the key.
967 // A typical use case is a web form: the DPAD_CENTER should bring up the IME
968 // when clicked on an input text field and cause the form submit if clicked
969 // when the submit button is focused, but not vice-versa.
970 // The UI layer takes care of translating DPAD_CENTER into a RETURN key,
971 // but at this point we have to swallow the event for the scenario (2).
972 const WebKeyboardEvent& key_event =
973 *static_cast<const WebKeyboardEvent*>(input_event);
974 if (key_event.nativeKeyCode == AKEYCODE_DPAD_CENTER &&
975 GetTextInputType() != ui::TEXT_INPUT_TYPE_NONE) {
977 prevent_default = true;
982 if (WebInputEvent::isGestureEventType(input_event->type)) {
983 const WebGestureEvent& gesture_event =
984 *static_cast<const WebGestureEvent*>(input_event);
985 context_menu_source_type_ = ui::MENU_SOURCE_TOUCH;
986 prevent_default = prevent_default || WillHandleGestureEvent(gesture_event);
989 bool processed = prevent_default;
990 if (input_event->type != WebInputEvent::Char || !suppress_next_char_events_) {
991 suppress_next_char_events_ = false;
992 if (!processed && webwidget_)
993 processed = webwidget_->handleInputEvent(*input_event);
996 // If this RawKeyDown event corresponds to a browser keyboard shortcut and
997 // it's not processed by webkit, then we need to suppress the upcoming Char
999 if (!processed && is_keyboard_shortcut)
1000 suppress_next_char_events_ = true;
1002 InputEventAckState ack_result = processed ?
1003 INPUT_EVENT_ACK_STATE_CONSUMED : INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
1004 if (!processed && input_event->type == WebInputEvent::TouchStart) {
1005 const WebTouchEvent& touch_event =
1006 *static_cast<const WebTouchEvent*>(input_event);
1007 // Hit-test for all the pressed touch points. If there is a touch-handler
1008 // for any of the touch points, then the renderer should continue to receive
1010 ack_result = INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS;
1011 for (size_t i = 0; i < touch_event.touchesLength; ++i) {
1012 if (touch_event.touches[i].state == WebTouchPoint::StatePressed &&
1013 HasTouchEventHandlersAt(
1014 gfx::ToFlooredPoint(touch_event.touches[i].position))) {
1015 ack_result = INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
1021 // Unconsumed touchmove acks should never be throttled as they're required to
1022 // dispatch compositor-handled scroll gestures.
1023 bool event_type_can_be_rate_limited =
1024 input_event->type == WebInputEvent::MouseMove ||
1025 input_event->type == WebInputEvent::MouseWheel ||
1026 (input_event->type == WebInputEvent::TouchMove &&
1027 ack_result == INPUT_EVENT_ACK_STATE_CONSUMED);
1029 bool frame_pending = compositor_ && compositor_->BeginMainFrameRequested();
1031 // If we don't have a fast and accurate HighResNow, we assume the input
1032 // handlers are heavy and rate limit them.
1033 bool rate_limiting_wanted = true;
1034 if (base::TimeTicks::IsHighResNowFastAndReliable()) {
1035 base::TimeTicks end_time = base::TimeTicks::HighResNow();
1036 total_input_handling_time_this_frame_ += (end_time - start_time);
1037 rate_limiting_wanted =
1038 total_input_handling_time_this_frame_.InMicroseconds() >
1039 kInputHandlingTimeThrottlingThresholdMicroseconds;
1042 TRACE_EVENT_SYNTHETIC_DELAY_END("blink.HandleInputEvent");
1044 // Note that we can't use handling_event_type_ here since it will be overriden
1045 // by reentrant calls for events after the paused one.
1046 bool no_ack = ignore_ack_for_mouse_move_from_debugger_ &&
1047 input_event->type == WebInputEvent::MouseMove;
1048 if (!WebInputEventTraits::IgnoresAckDisposition(*input_event) && !no_ack) {
1049 InputHostMsg_HandleInputEvent_ACK_Params ack;
1050 ack.type = input_event->type;
1051 ack.state = ack_result;
1052 ack.latency = swap_latency_info;
1053 scoped_ptr<IPC::Message> response(
1054 new InputHostMsg_HandleInputEvent_ACK(routing_id_, ack));
1055 if (rate_limiting_wanted && event_type_can_be_rate_limited &&
1056 frame_pending && !is_hidden_) {
1057 // We want to rate limit the input events in this case, so we'll wait for
1058 // painting to finish before ACKing this message.
1059 TRACE_EVENT_INSTANT0("renderer",
1060 "RenderWidget::OnHandleInputEvent ack throttled",
1061 TRACE_EVENT_SCOPE_THREAD);
1062 if (pending_input_event_ack_) {
1063 // As two different kinds of events could cause us to postpone an ack
1064 // we send it now, if we have one pending. The Browser should never
1065 // send us the same kind of event we are delaying the ack for.
1066 Send(pending_input_event_ack_.release());
1068 pending_input_event_ack_ = response.Pass();
1070 compositor_->NotifyInputThrottledUntilCommit();
1072 Send(response.release());
1075 if (input_event->type == WebInputEvent::MouseMove)
1076 ignore_ack_for_mouse_move_from_debugger_ = false;
1078 #if defined(OS_ANDROID)
1079 // Allow the IME to be shown when the focus changes as a consequence
1080 // of a processed touch end event.
1081 if (input_event->type == WebInputEvent::TouchEnd && processed)
1082 UpdateTextInputState(SHOW_IME_IF_NEEDED, FROM_NON_IME);
1083 #elif defined(USE_AURA)
1084 // Show the virtual keyboard if enabled and a user gesture triggers a focus
1086 if (processed && (input_event->type == WebInputEvent::TouchEnd ||
1087 input_event->type == WebInputEvent::MouseUp))
1088 UpdateTextInputState(SHOW_IME_IF_NEEDED, FROM_IME);
1091 if (!prevent_default) {
1092 if (WebInputEvent::isKeyboardEventType(input_event->type))
1093 DidHandleKeyEvent();
1094 if (WebInputEvent::isMouseEventType(input_event->type))
1095 DidHandleMouseEvent(*(static_cast<const WebMouseEvent*>(input_event)));
1096 if (WebInputEvent::isTouchEventType(input_event->type))
1097 DidHandleTouchEvent(*(static_cast<const WebTouchEvent*>(input_event)));
1101 void RenderWidget::OnCursorVisibilityChange(bool is_visible) {
1103 webwidget_->setCursorVisibilityState(is_visible);
1106 void RenderWidget::OnMouseCaptureLost() {
1108 webwidget_->mouseCaptureLost();
1111 void RenderWidget::OnSetFocus(bool enable) {
1112 has_focus_ = enable;
1114 webwidget_->setFocus(enable);
1117 void RenderWidget::ClearFocus() {
1118 // We may have got the focus from the browser before this gets processed, in
1119 // which case we do not want to unfocus ourself.
1120 if (!has_focus_ && webwidget_)
1121 webwidget_->setFocus(false);
1124 void RenderWidget::FlushPendingInputEventAck() {
1125 if (pending_input_event_ack_)
1126 Send(pending_input_event_ack_.release());
1127 total_input_handling_time_this_frame_ = base::TimeDelta();
1130 ///////////////////////////////////////////////////////////////////////////////
1133 void RenderWidget::didAutoResize(const WebSize& new_size) {
1134 if (size_.width() != new_size.width || size_.height() != new_size.height) {
1137 if (resizing_mode_selector_->is_synchronous_mode()) {
1138 WebRect new_pos(rootWindowRect().x,
1142 view_screen_rect_ = new_pos;
1143 window_screen_rect_ = new_pos;
1146 AutoResizeCompositor();
1148 if (!resizing_mode_selector_->is_synchronous_mode())
1149 need_update_rect_for_auto_resize_ = true;
1153 void RenderWidget::AutoResizeCompositor() {
1154 physical_backing_size_ = gfx::ToCeiledSize(gfx::ScaleSize(size_,
1155 device_scale_factor_));
1157 compositor_->setViewportSize(size_, physical_backing_size_);
1160 void RenderWidget::initializeLayerTreeView() {
1161 compositor_ = RenderWidgetCompositor::Create(
1162 this, is_threaded_compositing_enabled_);
1163 compositor_->setViewportSize(size_, physical_backing_size_);
1168 blink::WebLayerTreeView* RenderWidget::layerTreeView() {
1169 return compositor_.get();
1172 void RenderWidget::suppressCompositorScheduling(bool enable) {
1174 compositor_->SetSuppressScheduleComposite(enable);
1177 void RenderWidget::willBeginCompositorFrame() {
1178 TRACE_EVENT0("gpu", "RenderWidget::willBeginCompositorFrame");
1180 DCHECK(RenderThreadImpl::current()->compositor_message_loop_proxy().get());
1182 // The following two can result in further layout and possibly
1183 // enable GPU acceleration so they need to be called before any painting
1185 UpdateTextInputState(NO_SHOW_IME, FROM_NON_IME);
1186 UpdateSelectionBounds();
1189 void RenderWidget::didBecomeReadyForAdditionalInput() {
1190 TRACE_EVENT0("renderer", "RenderWidget::didBecomeReadyForAdditionalInput");
1191 FlushPendingInputEventAck();
1194 void RenderWidget::DidCommitCompositorFrame() {
1195 FOR_EACH_OBSERVER(RenderFrameProxy, render_frame_proxies_,
1196 DidCommitCompositorFrame());
1197 #if defined(VIDEO_HOLE)
1198 FOR_EACH_OBSERVER(RenderFrameImpl, video_hole_frames_,
1199 DidCommitCompositorFrame());
1200 #endif // defined(VIDEO_HOLE)
1203 void RenderWidget::didCommitAndDrawCompositorFrame() {
1204 // NOTE: Tests may break if this event is renamed or moved. See
1205 // tab_capture_performancetest.cc.
1206 TRACE_EVENT0("gpu", "RenderWidget::didCommitAndDrawCompositorFrame");
1207 // Notify subclasses that we initiated the paint operation.
1211 void RenderWidget::didCompleteSwapBuffers() {
1212 TRACE_EVENT0("renderer", "RenderWidget::didCompleteSwapBuffers");
1214 // Notify subclasses threaded composited rendering was flushed to the screen.
1217 if (!next_paint_flags_ &&
1218 !need_update_rect_for_auto_resize_ &&
1219 !plugin_window_moves_.size()) {
1223 ViewHostMsg_UpdateRect_Params params;
1224 params.view_size = size_;
1225 params.plugin_window_moves.swap(plugin_window_moves_);
1226 params.flags = next_paint_flags_;
1227 params.scroll_offset = GetScrollOffset();
1228 params.scale_factor = device_scale_factor_;
1230 Send(new ViewHostMsg_UpdateRect(routing_id_, params));
1231 next_paint_flags_ = 0;
1232 need_update_rect_for_auto_resize_ = false;
1235 void RenderWidget::scheduleComposite() {
1236 RenderThreadImpl* render_thread = RenderThreadImpl::current();
1237 // render_thread may be NULL in tests.
1238 if (render_thread && render_thread->compositor_message_loop_proxy().get() &&
1240 compositor_->setNeedsAnimate();
1244 void RenderWidget::didChangeCursor(const WebCursorInfo& cursor_info) {
1245 // TODO(darin): Eliminate this temporary.
1247 InitializeCursorFromWebKitCursorInfo(&cursor, cursor_info);
1248 // Only send a SetCursor message if we need to make a change.
1249 if (!current_cursor_.IsEqual(cursor)) {
1250 current_cursor_ = cursor;
1251 Send(new ViewHostMsg_SetCursor(routing_id_, cursor));
1255 // We are supposed to get a single call to Show for a newly created RenderWidget
1256 // that was created via RenderWidget::CreateWebView. So, we wait until this
1257 // point to dispatch the ShowWidget message.
1259 // This method provides us with the information about how to display the newly
1260 // created RenderWidget (i.e., as a blocked popup or as a new tab).
1262 void RenderWidget::show(WebNavigationPolicy) {
1263 DCHECK(!did_show_) << "received extraneous Show call";
1264 DCHECK(routing_id_ != MSG_ROUTING_NONE);
1265 DCHECK(opener_id_ != MSG_ROUTING_NONE);
1271 // NOTE: initial_pos_ may still have its default values at this point, but
1272 // that's okay. It'll be ignored if as_popup is false, or the browser
1273 // process will impose a default position otherwise.
1274 Send(new ViewHostMsg_ShowWidget(opener_id_, routing_id_, initial_pos_));
1275 SetPendingWindowRect(initial_pos_);
1278 void RenderWidget::didFocus() {
1281 void RenderWidget::didBlur() {
1284 void RenderWidget::DoDeferredClose() {
1285 Send(new ViewHostMsg_Close(routing_id_));
1288 void RenderWidget::closeWidgetSoon() {
1289 if (is_swapped_out_) {
1290 // This widget is currently swapped out, and the active widget is in a
1291 // different process. Have the browser route the close request to the
1292 // active widget instead, so that the correct unload handlers are run.
1293 Send(new ViewHostMsg_RouteCloseEvent(routing_id_));
1297 // If a page calls window.close() twice, we'll end up here twice, but that's
1298 // OK. It is safe to send multiple Close messages.
1300 // Ask the RenderWidgetHost to initiate close. We could be called from deep
1301 // in Javascript. If we ask the RendwerWidgetHost to close now, the window
1302 // could be closed before the JS finishes executing. So instead, post a
1303 // message back to the message loop, which won't run until the JS is
1304 // complete, and then the Close message can be sent.
1305 base::MessageLoop::current()->PostTask(
1306 FROM_HERE, base::Bind(&RenderWidget::DoDeferredClose, this));
1309 void RenderWidget::QueueSyntheticGesture(
1310 scoped_ptr<SyntheticGestureParams> gesture_params,
1311 const SyntheticGestureCompletionCallback& callback) {
1312 DCHECK(!callback.is_null());
1314 pending_synthetic_gesture_callbacks_.push(callback);
1316 SyntheticGesturePacket gesture_packet;
1317 gesture_packet.set_gesture_params(gesture_params.Pass());
1319 Send(new InputHostMsg_QueueSyntheticGesture(routing_id_, gesture_packet));
1322 void RenderWidget::Close() {
1324 webwidget_->willCloseLayerTreeView();
1325 compositor_.reset();
1326 webwidget_->close();
1331 WebRect RenderWidget::windowRect() {
1332 if (pending_window_rect_count_)
1333 return pending_window_rect_;
1335 return view_screen_rect_;
1338 void RenderWidget::setToolTipText(const blink::WebString& text,
1339 WebTextDirection hint) {
1340 Send(new ViewHostMsg_SetTooltipText(routing_id_, text, hint));
1343 void RenderWidget::setWindowRect(const WebRect& rect) {
1345 if (popup_origin_scale_for_emulation_) {
1346 float scale = popup_origin_scale_for_emulation_;
1347 pos.x = popup_screen_origin_for_emulation_.x() +
1348 (pos.x - popup_view_origin_for_emulation_.x()) * scale;
1349 pos.y = popup_screen_origin_for_emulation_.y() +
1350 (pos.y - popup_view_origin_for_emulation_.y()) * scale;
1353 if (!resizing_mode_selector_->is_synchronous_mode()) {
1355 Send(new ViewHostMsg_RequestMove(routing_id_, pos));
1356 SetPendingWindowRect(pos);
1361 ResizeSynchronously(pos);
1365 void RenderWidget::SetPendingWindowRect(const WebRect& rect) {
1366 pending_window_rect_ = rect;
1367 pending_window_rect_count_++;
1370 WebRect RenderWidget::rootWindowRect() {
1371 if (pending_window_rect_count_) {
1372 // NOTE(mbelshe): If there is a pending_window_rect_, then getting
1373 // the RootWindowRect is probably going to return wrong results since the
1374 // browser may not have processed the Move yet. There isn't really anything
1375 // good to do in this case, and it shouldn't happen - since this size is
1376 // only really needed for windowToScreen, which is only used for Popups.
1377 return pending_window_rect_;
1380 return window_screen_rect_;
1383 WebRect RenderWidget::windowResizerRect() {
1384 return resizer_rect_;
1387 void RenderWidget::OnSetInputMethodActive(bool is_active) {
1388 // To prevent this renderer process from sending unnecessary IPC messages to
1389 // a browser process, we permit the renderer process to send IPC messages
1390 // only during the input method attached to the browser process is active.
1391 input_method_is_active_ = is_active;
1394 void RenderWidget::OnCandidateWindowShown() {
1395 webwidget_->didShowCandidateWindow();
1398 void RenderWidget::OnCandidateWindowUpdated() {
1399 webwidget_->didUpdateCandidateWindow();
1402 void RenderWidget::OnCandidateWindowHidden() {
1403 webwidget_->didHideCandidateWindow();
1406 void RenderWidget::OnImeSetComposition(
1407 const base::string16& text,
1408 const std::vector<WebCompositionUnderline>& underlines,
1409 int selection_start, int selection_end) {
1410 if (!ShouldHandleImeEvent())
1412 ImeEventGuard guard(this);
1413 if (!webwidget_->setComposition(
1414 text, WebVector<WebCompositionUnderline>(underlines),
1415 selection_start, selection_end)) {
1416 // If we failed to set the composition text, then we need to let the browser
1417 // process to cancel the input method's ongoing composition session, to make
1418 // sure we are in a consistent state.
1419 Send(new ViewHostMsg_ImeCancelComposition(routing_id()));
1421 #if defined(OS_MACOSX) || defined(USE_AURA)
1422 UpdateCompositionInfo(true);
1426 void RenderWidget::OnImeConfirmComposition(const base::string16& text,
1427 const gfx::Range& replacement_range,
1428 bool keep_selection) {
1429 if (!ShouldHandleImeEvent())
1431 ImeEventGuard guard(this);
1432 handling_input_event_ = true;
1434 webwidget_->confirmComposition(text);
1435 else if (keep_selection)
1436 webwidget_->confirmComposition(WebWidget::KeepSelection);
1438 webwidget_->confirmComposition(WebWidget::DoNotKeepSelection);
1439 handling_input_event_ = false;
1440 #if defined(OS_MACOSX) || defined(USE_AURA)
1441 UpdateCompositionInfo(true);
1445 void RenderWidget::OnRepaint(gfx::Size size_to_paint) {
1446 // During shutdown we can just ignore this message.
1450 // Even if the browser provides an empty damage rect, it's still expecting to
1451 // receive a repaint ack so just damage the entire widget bounds.
1452 if (size_to_paint.IsEmpty()) {
1453 size_to_paint = size_;
1456 set_next_paint_is_repaint_ack();
1458 compositor_->SetNeedsRedrawRect(gfx::Rect(size_to_paint));
1461 void RenderWidget::OnSyntheticGestureCompleted() {
1462 DCHECK(!pending_synthetic_gesture_callbacks_.empty());
1464 pending_synthetic_gesture_callbacks_.front().Run();
1465 pending_synthetic_gesture_callbacks_.pop();
1468 void RenderWidget::OnSetTextDirection(WebTextDirection direction) {
1471 webwidget_->setTextDirection(direction);
1474 void RenderWidget::OnUpdateScreenRects(const gfx::Rect& view_screen_rect,
1475 const gfx::Rect& window_screen_rect) {
1476 if (screen_metrics_emulator_) {
1477 screen_metrics_emulator_->OnUpdateScreenRectsMessage(
1478 view_screen_rect, window_screen_rect);
1480 view_screen_rect_ = view_screen_rect;
1481 window_screen_rect_ = window_screen_rect;
1483 Send(new ViewHostMsg_UpdateScreenRects_ACK(routing_id()));
1486 #if defined(OS_ANDROID)
1487 void RenderWidget::OnShowImeIfNeeded() {
1488 UpdateTextInputState(SHOW_IME_IF_NEEDED, FROM_NON_IME);
1491 void RenderWidget::IncrementOutstandingImeEventAcks() {
1492 ++outstanding_ime_acks_;
1495 void RenderWidget::OnImeEventAck() {
1496 --outstanding_ime_acks_;
1497 DCHECK(outstanding_ime_acks_ >= 0);
1501 bool RenderWidget::ShouldHandleImeEvent() {
1502 #if defined(OS_ANDROID)
1503 return !!webwidget_ && outstanding_ime_acks_ == 0;
1505 return !!webwidget_;
1509 bool RenderWidget::SendAckForMouseMoveFromDebugger() {
1510 if (handling_event_type_ == WebInputEvent::MouseMove) {
1511 // If we pause multiple times during a single mouse move event, we should
1512 // only send ACK once.
1513 if (!ignore_ack_for_mouse_move_from_debugger_) {
1514 InputHostMsg_HandleInputEvent_ACK_Params ack;
1515 ack.type = handling_event_type_;
1516 ack.state = INPUT_EVENT_ACK_STATE_CONSUMED;
1517 Send(new InputHostMsg_HandleInputEvent_ACK(routing_id_, ack));
1524 void RenderWidget::IgnoreAckForMouseMoveFromDebugger() {
1525 ignore_ack_for_mouse_move_from_debugger_ = true;
1528 void RenderWidget::SetDeviceScaleFactor(float device_scale_factor) {
1529 if (device_scale_factor_ == device_scale_factor)
1532 device_scale_factor_ = device_scale_factor;
1533 scheduleComposite();
1536 bool RenderWidget::SetDeviceColorProfile(
1537 const std::vector<char>& color_profile) {
1538 if (device_color_profile_ == color_profile)
1541 device_color_profile_ = color_profile;
1545 void RenderWidget::OnOrientationChange() {
1548 gfx::Vector2d RenderWidget::GetScrollOffset() {
1549 // Bare RenderWidgets don't support scroll offset.
1550 return gfx::Vector2d();
1553 void RenderWidget::SetHidden(bool hidden) {
1554 if (is_hidden_ == hidden)
1557 // The status has changed. Tell the RenderThread about it.
1558 is_hidden_ = hidden;
1560 RenderThreadImpl::current()->WidgetHidden();
1562 RenderThreadImpl::current()->WidgetRestored();
1565 void RenderWidget::WillToggleFullscreen() {
1569 if (is_fullscreen_) {
1570 webwidget_->willExitFullScreen();
1572 webwidget_->willEnterFullScreen();
1576 void RenderWidget::DidToggleFullscreen() {
1580 if (is_fullscreen_) {
1581 webwidget_->didEnterFullScreen();
1583 webwidget_->didExitFullScreen();
1587 bool RenderWidget::next_paint_is_resize_ack() const {
1588 return ViewHostMsg_UpdateRect_Flags::is_resize_ack(next_paint_flags_);
1591 void RenderWidget::set_next_paint_is_resize_ack() {
1592 next_paint_flags_ |= ViewHostMsg_UpdateRect_Flags::IS_RESIZE_ACK;
1595 void RenderWidget::set_next_paint_is_repaint_ack() {
1596 next_paint_flags_ |= ViewHostMsg_UpdateRect_Flags::IS_REPAINT_ACK;
1599 static bool IsDateTimeInput(ui::TextInputType type) {
1600 return type == ui::TEXT_INPUT_TYPE_DATE ||
1601 type == ui::TEXT_INPUT_TYPE_DATE_TIME ||
1602 type == ui::TEXT_INPUT_TYPE_DATE_TIME_LOCAL ||
1603 type == ui::TEXT_INPUT_TYPE_MONTH ||
1604 type == ui::TEXT_INPUT_TYPE_TIME ||
1605 type == ui::TEXT_INPUT_TYPE_WEEK;
1609 void RenderWidget::StartHandlingImeEvent() {
1610 DCHECK(!handling_ime_event_);
1611 handling_ime_event_ = true;
1614 void RenderWidget::FinishHandlingImeEvent() {
1615 DCHECK(handling_ime_event_);
1616 handling_ime_event_ = false;
1617 // While handling an ime event, text input state and selection bounds updates
1618 // are ignored. These must explicitly be updated once finished handling the
1620 UpdateSelectionBounds();
1621 #if defined(OS_ANDROID)
1622 UpdateTextInputState(NO_SHOW_IME, FROM_IME);
1626 void RenderWidget::UpdateTextInputState(ShowIme show_ime,
1627 ChangeSource change_source) {
1628 if (handling_ime_event_)
1630 if (show_ime == NO_SHOW_IME && !input_method_is_active_)
1632 ui::TextInputType new_type = GetTextInputType();
1633 if (IsDateTimeInput(new_type))
1634 return; // Not considered as a text input field in WebKit/Chromium.
1636 blink::WebTextInputInfo new_info;
1638 new_info = webwidget_->textInputInfo();
1639 const ui::TextInputMode new_mode = ConvertInputMode(new_info.inputMode);
1641 bool new_can_compose_inline = CanComposeInline();
1643 // Only sends text input params if they are changed or if the ime should be
1645 if (show_ime == SHOW_IME_IF_NEEDED ||
1646 (text_input_type_ != new_type ||
1647 text_input_mode_ != new_mode ||
1648 text_input_info_ != new_info ||
1649 can_compose_inline_ != new_can_compose_inline)
1650 #if defined(OS_ANDROID)
1651 || text_field_is_dirty_
1654 ViewHostMsg_TextInputState_Params p;
1657 p.value = new_info.value.utf8();
1658 p.selection_start = new_info.selectionStart;
1659 p.selection_end = new_info.selectionEnd;
1660 p.composition_start = new_info.compositionStart;
1661 p.composition_end = new_info.compositionEnd;
1662 p.can_compose_inline = new_can_compose_inline;
1663 p.show_ime_if_needed = (show_ime == SHOW_IME_IF_NEEDED);
1664 #if defined(USE_AURA)
1665 p.is_non_ime_change = true;
1667 #if defined(OS_ANDROID)
1668 p.is_non_ime_change = (change_source == FROM_NON_IME) ||
1669 text_field_is_dirty_;
1670 if (p.is_non_ime_change)
1671 IncrementOutstandingImeEventAcks();
1672 text_field_is_dirty_ = false;
1674 Send(new ViewHostMsg_TextInputStateChanged(routing_id(), p));
1676 text_input_info_ = new_info;
1677 text_input_type_ = new_type;
1678 text_input_mode_ = new_mode;
1679 can_compose_inline_ = new_can_compose_inline;
1683 void RenderWidget::GetSelectionBounds(gfx::Rect* focus, gfx::Rect* anchor) {
1684 WebRect focus_webrect;
1685 WebRect anchor_webrect;
1686 webwidget_->selectionBounds(focus_webrect, anchor_webrect);
1687 *focus = focus_webrect;
1688 *anchor = anchor_webrect;
1691 void RenderWidget::UpdateSelectionBounds() {
1694 if (handling_ime_event_)
1697 ViewHostMsg_SelectionBounds_Params params;
1698 GetSelectionBounds(¶ms.anchor_rect, ¶ms.focus_rect);
1699 if (selection_anchor_rect_ != params.anchor_rect ||
1700 selection_focus_rect_ != params.focus_rect) {
1701 selection_anchor_rect_ = params.anchor_rect;
1702 selection_focus_rect_ = params.focus_rect;
1703 webwidget_->selectionTextDirection(params.focus_dir, params.anchor_dir);
1704 params.is_anchor_first = webwidget_->isSelectionAnchorFirst();
1705 Send(new ViewHostMsg_SelectionBoundsChanged(routing_id_, params));
1707 #if defined(OS_MACOSX) || defined(USE_AURA)
1708 UpdateCompositionInfo(false);
1712 // Check blink::WebTextInputType and ui::TextInputType is kept in sync.
1713 COMPILE_ASSERT(int(blink::WebTextInputTypeNone) == \
1714 int(ui::TEXT_INPUT_TYPE_NONE), mismatching_enums);
1715 COMPILE_ASSERT(int(blink::WebTextInputTypeText) == \
1716 int(ui::TEXT_INPUT_TYPE_TEXT), mismatching_enums);
1717 COMPILE_ASSERT(int(blink::WebTextInputTypePassword) == \
1718 int(ui::TEXT_INPUT_TYPE_PASSWORD), mismatching_enums);
1719 COMPILE_ASSERT(int(blink::WebTextInputTypeSearch) == \
1720 int(ui::TEXT_INPUT_TYPE_SEARCH), mismatching_enums);
1721 COMPILE_ASSERT(int(blink::WebTextInputTypeEmail) == \
1722 int(ui::TEXT_INPUT_TYPE_EMAIL), mismatching_enums);
1723 COMPILE_ASSERT(int(blink::WebTextInputTypeNumber) == \
1724 int(ui::TEXT_INPUT_TYPE_NUMBER), mismatching_enums);
1725 COMPILE_ASSERT(int(blink::WebTextInputTypeTelephone) == \
1726 int(ui::TEXT_INPUT_TYPE_TELEPHONE), mismatching_enums);
1727 COMPILE_ASSERT(int(blink::WebTextInputTypeURL) == \
1728 int(ui::TEXT_INPUT_TYPE_URL), mismatching_enums);
1729 COMPILE_ASSERT(int(blink::WebTextInputTypeDate) == \
1730 int(ui::TEXT_INPUT_TYPE_DATE), mismatching_enum);
1731 COMPILE_ASSERT(int(blink::WebTextInputTypeDateTime) == \
1732 int(ui::TEXT_INPUT_TYPE_DATE_TIME), mismatching_enum);
1733 COMPILE_ASSERT(int(blink::WebTextInputTypeDateTimeLocal) == \
1734 int(ui::TEXT_INPUT_TYPE_DATE_TIME_LOCAL), mismatching_enum);
1735 COMPILE_ASSERT(int(blink::WebTextInputTypeMonth) == \
1736 int(ui::TEXT_INPUT_TYPE_MONTH), mismatching_enum);
1737 COMPILE_ASSERT(int(blink::WebTextInputTypeTime) == \
1738 int(ui::TEXT_INPUT_TYPE_TIME), mismatching_enum);
1739 COMPILE_ASSERT(int(blink::WebTextInputTypeWeek) == \
1740 int(ui::TEXT_INPUT_TYPE_WEEK), mismatching_enum);
1741 COMPILE_ASSERT(int(blink::WebTextInputTypeTextArea) == \
1742 int(ui::TEXT_INPUT_TYPE_TEXT_AREA), mismatching_enums);
1743 COMPILE_ASSERT(int(blink::WebTextInputTypeContentEditable) == \
1744 int(ui::TEXT_INPUT_TYPE_CONTENT_EDITABLE), mismatching_enums);
1745 COMPILE_ASSERT(int(blink::WebTextInputTypeDateTimeField) == \
1746 int(ui::TEXT_INPUT_TYPE_DATE_TIME_FIELD), mismatching_enums);
1748 ui::TextInputType RenderWidget::WebKitToUiTextInputType(
1749 blink::WebTextInputType type) {
1750 // Check the type is in the range representable by ui::TextInputType.
1751 DCHECK_LE(type, static_cast<int>(ui::TEXT_INPUT_TYPE_MAX)) <<
1752 "blink::WebTextInputType and ui::TextInputType not synchronized";
1753 return static_cast<ui::TextInputType>(type);
1756 ui::TextInputType RenderWidget::GetTextInputType() {
1758 return WebKitToUiTextInputType(webwidget_->textInputInfo().type);
1759 return ui::TEXT_INPUT_TYPE_NONE;
1762 #if defined(OS_MACOSX) || defined(USE_AURA)
1763 void RenderWidget::UpdateCompositionInfo(bool should_update_range) {
1764 gfx::Range range = gfx::Range();
1765 if (should_update_range) {
1766 GetCompositionRange(&range);
1768 range = composition_range_;
1770 std::vector<gfx::Rect> character_bounds;
1771 GetCompositionCharacterBounds(&character_bounds);
1773 if (!ShouldUpdateCompositionInfo(range, character_bounds))
1775 composition_character_bounds_ = character_bounds;
1776 composition_range_ = range;
1777 Send(new ViewHostMsg_ImeCompositionRangeChanged(
1778 routing_id(), composition_range_, composition_character_bounds_));
1781 void RenderWidget::GetCompositionCharacterBounds(
1782 std::vector<gfx::Rect>* bounds) {
1787 void RenderWidget::GetCompositionRange(gfx::Range* range) {
1788 size_t location, length;
1789 if (webwidget_->compositionRange(&location, &length)) {
1790 range->set_start(location);
1791 range->set_end(location + length);
1792 } else if (webwidget_->caretOrSelectionRange(&location, &length)) {
1793 range->set_start(location);
1794 range->set_end(location + length);
1796 *range = gfx::Range::InvalidRange();
1800 bool RenderWidget::ShouldUpdateCompositionInfo(
1801 const gfx::Range& range,
1802 const std::vector<gfx::Rect>& bounds) {
1803 if (composition_range_ != range)
1805 if (bounds.size() != composition_character_bounds_.size())
1807 for (size_t i = 0; i < bounds.size(); ++i) {
1808 if (bounds[i] != composition_character_bounds_[i])
1815 #if defined(OS_ANDROID)
1816 void RenderWidget::DidChangeBodyBackgroundColor(SkColor bg_color) {
1817 // If not initialized, default to white. Note that 0 is different from black
1818 // as black still has alpha 0xFF.
1820 bg_color = SK_ColorWHITE;
1822 if (bg_color != body_background_color_) {
1823 body_background_color_ = bg_color;
1824 Send(new ViewHostMsg_DidChangeBodyBackgroundColor(routing_id(), bg_color));
1829 bool RenderWidget::CanComposeInline() {
1833 WebScreenInfo RenderWidget::screenInfo() {
1834 return screen_info_;
1837 float RenderWidget::deviceScaleFactor() {
1838 return device_scale_factor_;
1841 void RenderWidget::resetInputMethod() {
1842 if (!input_method_is_active_)
1845 ImeEventGuard guard(this);
1846 // If the last text input type is not None, then we should finish any
1847 // ongoing composition regardless of the new text input type.
1848 if (text_input_type_ != ui::TEXT_INPUT_TYPE_NONE) {
1849 // If a composition text exists, then we need to let the browser process
1850 // to cancel the input method's ongoing composition session.
1851 if (webwidget_->confirmComposition())
1852 Send(new ViewHostMsg_ImeCancelComposition(routing_id()));
1855 #if defined(OS_MACOSX) || defined(USE_AURA)
1856 UpdateCompositionInfo(true);
1860 void RenderWidget::didHandleGestureEvent(
1861 const WebGestureEvent& event,
1862 bool event_cancelled) {
1863 #if defined(OS_ANDROID) || defined(USE_AURA)
1864 if (event_cancelled)
1866 if (event.type == WebInputEvent::GestureTap ||
1867 event.type == WebInputEvent::GestureLongPress) {
1868 UpdateTextInputState(SHOW_IME_IF_NEEDED, FROM_NON_IME);
1873 void RenderWidget::StartCompositor() {
1874 // For widgets that are never visible, we don't need the compositor to run
1878 compositor_->setSurfaceReady();
1881 void RenderWidget::SchedulePluginMove(const WebPluginGeometry& move) {
1883 for (; i < plugin_window_moves_.size(); ++i) {
1884 if (plugin_window_moves_[i].window == move.window) {
1885 if (move.rects_valid) {
1886 plugin_window_moves_[i] = move;
1888 plugin_window_moves_[i].visible = move.visible;
1894 if (i == plugin_window_moves_.size())
1895 plugin_window_moves_.push_back(move);
1898 void RenderWidget::CleanupWindowInPluginMoves(gfx::PluginWindowHandle window) {
1899 for (WebPluginGeometryVector::iterator i = plugin_window_moves_.begin();
1900 i != plugin_window_moves_.end(); ++i) {
1901 if (i->window == window) {
1902 plugin_window_moves_.erase(i);
1909 RenderWidgetCompositor* RenderWidget::compositor() const {
1910 return compositor_.get();
1913 bool RenderWidget::WillHandleMouseEvent(const blink::WebMouseEvent& event) {
1917 bool RenderWidget::WillHandleGestureEvent(
1918 const blink::WebGestureEvent& event) {
1922 void RenderWidget::hasTouchEventHandlers(bool has_handlers) {
1923 Send(new ViewHostMsg_HasTouchEventHandlers(routing_id_, has_handlers));
1926 void RenderWidget::setTouchAction(
1927 blink::WebTouchAction web_touch_action) {
1929 // Ignore setTouchAction calls that result from synthetic touch events (eg.
1930 // when blink is emulating touch with mouse).
1931 if (handling_event_type_ != WebInputEvent::TouchStart)
1934 // Verify the same values are used by the types so we can cast between them.
1935 COMPILE_ASSERT(static_cast<blink::WebTouchAction>(TOUCH_ACTION_AUTO) ==
1936 blink::WebTouchActionAuto,
1937 enum_values_must_match_for_touch_action);
1938 COMPILE_ASSERT(static_cast<blink::WebTouchAction>(TOUCH_ACTION_NONE) ==
1939 blink::WebTouchActionNone,
1940 enum_values_must_match_for_touch_action);
1941 COMPILE_ASSERT(static_cast<blink::WebTouchAction>(TOUCH_ACTION_PAN_X) ==
1942 blink::WebTouchActionPanX,
1943 enum_values_must_match_for_touch_action);
1944 COMPILE_ASSERT(static_cast<blink::WebTouchAction>(TOUCH_ACTION_PAN_Y) ==
1945 blink::WebTouchActionPanY,
1946 enum_values_must_match_for_touch_action);
1948 static_cast<blink::WebTouchAction>(TOUCH_ACTION_PINCH_ZOOM) ==
1949 blink::WebTouchActionPinchZoom,
1950 enum_values_must_match_for_touch_action);
1952 content::TouchAction content_touch_action =
1953 static_cast<content::TouchAction>(web_touch_action);
1954 Send(new InputHostMsg_SetTouchAction(routing_id_, content_touch_action));
1957 void RenderWidget::didUpdateTextOfFocusedElementByNonUserInput() {
1958 #if defined(OS_ANDROID)
1959 text_field_is_dirty_ = true;
1963 bool RenderWidget::HasTouchEventHandlersAt(const gfx::Point& point) const {
1967 scoped_ptr<WebGraphicsContext3DCommandBufferImpl>
1968 RenderWidget::CreateGraphicsContext3D() {
1970 return scoped_ptr<WebGraphicsContext3DCommandBufferImpl>();
1971 if (CommandLine::ForCurrentProcess()->HasSwitch(
1972 switches::kDisableGpuCompositing))
1973 return scoped_ptr<WebGraphicsContext3DCommandBufferImpl>();
1974 if (!RenderThreadImpl::current())
1975 return scoped_ptr<WebGraphicsContext3DCommandBufferImpl>();
1976 CauseForGpuLaunch cause =
1977 CAUSE_FOR_GPU_LAUNCH_WEBGRAPHICSCONTEXT3DCOMMANDBUFFERIMPL_INITIALIZE;
1978 scoped_refptr<GpuChannelHost> gpu_channel_host(
1979 RenderThreadImpl::current()->EstablishGpuChannelSync(cause));
1980 if (!gpu_channel_host)
1981 return scoped_ptr<WebGraphicsContext3DCommandBufferImpl>();
1983 // Explicitly disable antialiasing for the compositor. As of the time of
1984 // this writing, the only platform that supported antialiasing for the
1985 // compositor was Mac OS X, because the on-screen OpenGL context creation
1986 // code paths on Windows and Linux didn't yet have multisampling support.
1987 // Mac OS X essentially always behaves as though it's rendering offscreen.
1988 // Multisampling has a heavy cost especially on devices with relatively low
1989 // fill rate like most notebooks, and the Mac implementation would need to
1990 // be optimized to resolve directly into the IOSurface shared between the
1991 // GPU and browser processes. For these reasons and to avoid platform
1992 // disparities we explicitly disable antialiasing.
1993 blink::WebGraphicsContext3D::Attributes attributes;
1994 attributes.antialias = false;
1995 attributes.shareResources = true;
1996 attributes.noAutomaticFlushes = true;
1997 attributes.depth = false;
1998 attributes.stencil = false;
1999 bool lose_context_when_out_of_memory = true;
2000 WebGraphicsContext3DCommandBufferImpl::SharedMemoryLimits limits;
2001 #if defined(OS_ANDROID)
2002 // If we raster too fast we become upload bound, and pending
2003 // uploads consume memory. For maximum upload throughput, we would
2004 // want to allow for upload_throughput * pipeline_time of pending
2005 // uploads, after which we are just wasting memory. Since we don't
2006 // know our upload throughput yet, this just caps our memory usage.
2008 if (base::android::SysUtils::IsLowEndDevice())
2010 // For reference Nexus10 can upload 1MB in about 2.5ms.
2011 const double max_mb_uploaded_per_ms = 2.0 / (5 * divider);
2012 // Deadline to draw a frame to achieve 60 frames per second.
2013 const size_t kMillisecondsPerFrame = 16;
2014 // Assuming a two frame deep pipeline between the CPU and the GPU.
2015 size_t max_transfer_buffer_usage_mb =
2016 static_cast<size_t>(2 * kMillisecondsPerFrame * max_mb_uploaded_per_ms);
2017 static const size_t kBytesPerMegabyte = 1024 * 1024;
2018 // We keep the MappedMemoryReclaimLimit the same as the upload limit
2019 // to avoid unnecessarily stalling the compositor thread.
2020 limits.mapped_memory_reclaim_limit =
2021 max_transfer_buffer_usage_mb * kBytesPerMegabyte;
2024 scoped_ptr<WebGraphicsContext3DCommandBufferImpl> context(
2025 new WebGraphicsContext3DCommandBufferImpl(surface_id(),
2026 GetURLForGraphicsContext3D(),
2027 gpu_channel_host.get(),
2029 lose_context_when_out_of_memory,
2032 return context.Pass();
2035 void RenderWidget::RegisterRenderFrameProxy(RenderFrameProxy* proxy) {
2036 render_frame_proxies_.AddObserver(proxy);
2039 void RenderWidget::UnregisterRenderFrameProxy(RenderFrameProxy* proxy) {
2040 render_frame_proxies_.RemoveObserver(proxy);
2043 void RenderWidget::RegisterRenderFrame(RenderFrameImpl* frame) {
2044 render_frames_.AddObserver(frame);
2047 void RenderWidget::UnregisterRenderFrame(RenderFrameImpl* frame) {
2048 render_frames_.RemoveObserver(frame);
2051 #if defined(VIDEO_HOLE)
2052 void RenderWidget::RegisterVideoHoleFrame(RenderFrameImpl* frame) {
2053 video_hole_frames_.AddObserver(frame);
2056 void RenderWidget::UnregisterVideoHoleFrame(RenderFrameImpl* frame) {
2057 video_hole_frames_.RemoveObserver(frame);
2059 #endif // defined(VIDEO_HOLE)
2061 } // namespace content