blob: 8997a58307d4207416a25d7e8cc9e1a9b69e6467 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/render_widget.h"
#include "base/auto_reset.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/singleton.h"
#include "base/message_loop/message_loop.h"
#include "base/metrics/histogram.h"
#include "base/stl_util.h"
#include "base/strings/utf_string_conversions.h"
#include "base/sys_info.h"
#include "base/trace_event/trace_event.h"
#include "base/trace_event/trace_event_synthetic_delay.h"
#include "build/build_config.h"
#include "cc/base/switches.h"
#include "cc/debug/benchmark_instrumentation.h"
#include "cc/output/output_surface.h"
#include "cc/trees/layer_tree_host.h"
#include "components/scheduler/renderer/renderer_scheduler.h"
#include "content/child/npapi/webplugin.h"
#include "content/common/gpu/client/context_provider_command_buffer.h"
#include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
#include "content/common/gpu/gpu_process_launch_causes.h"
#include "content/common/input/synthetic_gesture_packet.h"
#include "content/common/input/web_input_event_traits.h"
#include "content/common/input_messages.h"
#include "content/common/swapped_out_messages.h"
#include "content/common/view_messages.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/context_menu_params.h"
#include "content/renderer/cursor_utils.h"
#include "content/renderer/external_popup_menu.h"
#include "content/renderer/gpu/compositor_output_surface.h"
#include "content/renderer/gpu/delegated_compositor_output_surface.h"
#include "content/renderer/gpu/frame_swap_message_queue.h"
#include "content/renderer/gpu/mailbox_output_surface.h"
#include "content/renderer/gpu/queue_message_swap_promise.h"
#include "content/renderer/gpu/render_widget_compositor.h"
#include "content/renderer/ime_event_guard.h"
#include "content/renderer/input/input_handler_manager.h"
#include "content/renderer/pepper/pepper_plugin_instance_impl.h"
#include "content/renderer/render_frame_impl.h"
#include "content/renderer/render_frame_proxy.h"
#include "content/renderer/render_process.h"
#include "content/renderer/render_thread_impl.h"
#include "content/renderer/renderer_blink_platform_impl.h"
#include "content/renderer/resizing_mode_selector.h"
#include "ipc/ipc_sync_message.h"
#include "skia/ext/platform_canvas.h"
#include "third_party/WebKit/public/platform/WebCursorInfo.h"
#include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
#include "third_party/WebKit/public/platform/WebPoint.h"
#include "third_party/WebKit/public/platform/WebRect.h"
#include "third_party/WebKit/public/platform/WebScreenInfo.h"
#include "third_party/WebKit/public/platform/WebSize.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "third_party/WebKit/public/web/WebDeviceEmulationParams.h"
#include "third_party/WebKit/public/web/WebFrameWidget.h"
#include "third_party/WebKit/public/web/WebLocalFrame.h"
#include "third_party/WebKit/public/web/WebNode.h"
#include "third_party/WebKit/public/web/WebPagePopup.h"
#include "third_party/WebKit/public/web/WebPopupMenuInfo.h"
#include "third_party/WebKit/public/web/WebRange.h"
#include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
#include "third_party/WebKit/public/web/WebView.h"
#include "third_party/skia/include/core/SkShader.h"
#include "ui/base/ui_base_switches.h"
#include "ui/gfx/geometry/point_conversions.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/geometry/size_conversions.h"
#include "ui/gfx/skia_util.h"
#include "ui/gl/gl_switches.h"
#include "ui/surface/transport_dib.h"
#if defined(OS_ANDROID)
#include <android/keycodes.h>
#include "content/renderer/android/synchronous_compositor_factory.h"
#endif
#if defined(OS_POSIX)
#include "ipc/ipc_channel_posix.h"
#include "third_party/skia/include/core/SkMallocPixelRef.h"
#include "third_party/skia/include/core/SkPixelRef.h"
#endif // defined(OS_POSIX)
#include "third_party/WebKit/public/web/WebWidget.h"
using blink::WebCompositionUnderline;
using blink::WebCursorInfo;
using blink::WebDeviceEmulationParams;
using blink::WebGestureEvent;
using blink::WebInputEvent;
using blink::WebKeyboardEvent;
using blink::WebMouseEvent;
using blink::WebMouseWheelEvent;
using blink::WebNavigationPolicy;
using blink::WebNode;
using blink::WebPagePopup;
using blink::WebPoint;
using blink::WebPopupType;
using blink::WebRange;
using blink::WebRect;
using blink::WebScreenInfo;
using blink::WebSize;
using blink::WebTextDirection;
using blink::WebTouchEvent;
using blink::WebTouchPoint;
using blink::WebVector;
using blink::WebWidget;
namespace {
typedef std::map<std::string, ui::TextInputMode> TextInputModeMap;
class TextInputModeMapSingleton {
public:
static TextInputModeMapSingleton* GetInstance() {
return base::Singleton<TextInputModeMapSingleton>::get();
}
TextInputModeMapSingleton() {
map_["verbatim"] = ui::TEXT_INPUT_MODE_VERBATIM;
map_["latin"] = ui::TEXT_INPUT_MODE_LATIN;
map_["latin-name"] = ui::TEXT_INPUT_MODE_LATIN_NAME;
map_["latin-prose"] = ui::TEXT_INPUT_MODE_LATIN_PROSE;
map_["full-width-latin"] = ui::TEXT_INPUT_MODE_FULL_WIDTH_LATIN;
map_["kana"] = ui::TEXT_INPUT_MODE_KANA;
map_["katakana"] = ui::TEXT_INPUT_MODE_KATAKANA;
map_["numeric"] = ui::TEXT_INPUT_MODE_NUMERIC;
map_["tel"] = ui::TEXT_INPUT_MODE_TEL;
map_["email"] = ui::TEXT_INPUT_MODE_EMAIL;
map_["url"] = ui::TEXT_INPUT_MODE_URL;
}
const TextInputModeMap& map() const { return map_; }
private:
TextInputModeMap map_;
friend struct base::DefaultSingletonTraits<TextInputModeMapSingleton>;
DISALLOW_COPY_AND_ASSIGN(TextInputModeMapSingleton);
};
ui::TextInputMode ConvertInputMode(const blink::WebString& input_mode) {
static TextInputModeMapSingleton* singleton =
TextInputModeMapSingleton::GetInstance();
TextInputModeMap::const_iterator it =
singleton->map().find(input_mode.utf8());
if (it == singleton->map().end())
return ui::TEXT_INPUT_MODE_DEFAULT;
return it->second;
}
// TODO(brianderson): Replace the hard-coded threshold with a fraction of
// the BeginMainFrame interval.
// 4166us will allow 1/4 of a 60Hz interval or 1/2 of a 120Hz interval to
// be spent in input hanlders before input starts getting throttled.
const int kInputHandlingTimeThrottlingThresholdMicroseconds = 4166;
int64 GetEventLatencyMicros(double event_timestamp, base::TimeTicks now) {
return (now - base::TimeDelta::FromSecondsD(event_timestamp))
.ToInternalValue();
}
void LogInputEventLatencyUmaImpl(WebInputEvent::Type event_type,
double event_timestamp,
base::TimeTicks now) {
UMA_HISTOGRAM_CUSTOM_COUNTS("Event.AggregatedLatency.Renderer2",
GetEventLatencyMicros(event_timestamp, now), 1,
10000000, 100);
#define CASE_TYPE(t) \
case WebInputEvent::t: \
UMA_HISTOGRAM_CUSTOM_COUNTS("Event.Latency.Renderer2." #t, \
GetEventLatencyMicros(event_timestamp, now), \
1, 10000000, 100); \
break;
switch (event_type) {
CASE_TYPE(Undefined);
CASE_TYPE(MouseDown);
CASE_TYPE(MouseUp);
CASE_TYPE(MouseMove);
CASE_TYPE(MouseEnter);
CASE_TYPE(MouseLeave);
CASE_TYPE(ContextMenu);
CASE_TYPE(MouseWheel);
CASE_TYPE(RawKeyDown);
CASE_TYPE(KeyDown);
CASE_TYPE(KeyUp);
CASE_TYPE(Char);
CASE_TYPE(GestureScrollBegin);
CASE_TYPE(GestureScrollEnd);
CASE_TYPE(GestureScrollUpdate);
CASE_TYPE(GestureFlingStart);
CASE_TYPE(GestureFlingCancel);
CASE_TYPE(GestureShowPress);
CASE_TYPE(GestureTap);
CASE_TYPE(GestureTapUnconfirmed);
CASE_TYPE(GestureTapDown);
CASE_TYPE(GestureTapCancel);
CASE_TYPE(GestureDoubleTap);
CASE_TYPE(GestureTwoFingerTap);
CASE_TYPE(GestureLongPress);
CASE_TYPE(GestureLongTap);
CASE_TYPE(GesturePinchBegin);
CASE_TYPE(GesturePinchEnd);
CASE_TYPE(GesturePinchUpdate);
CASE_TYPE(TouchStart);
CASE_TYPE(TouchMove);
CASE_TYPE(TouchEnd);
CASE_TYPE(TouchCancel);
default:
// Must include default to let blink::WebInputEvent add new event types
// before they're added here.
DLOG(WARNING) << "Unhandled WebInputEvent type: " << event_type;
break;
}
#undef CASE_TYPE
}
void LogInputEventLatencyUma(const WebInputEvent& event, base::TimeTicks now,
const ui::LatencyInfo& latency_info) {
LogInputEventLatencyUmaImpl(event.type, event.timeStampSeconds, now);
for (size_t i = 0; i < latency_info.coalesced_events_size(); i++) {
LogInputEventLatencyUmaImpl(
event.type,
latency_info.timestamps_of_coalesced_events()[i],
now);
}
}
} // namespace
namespace content {
// RenderWidget::ScreenMetricsEmulator ----------------------------------------
class RenderWidget::ScreenMetricsEmulator {
public:
ScreenMetricsEmulator(
RenderWidget* widget,
const WebDeviceEmulationParams& params);
virtual ~ScreenMetricsEmulator();
// Scale and offset used to convert between host coordinates
// and webwidget coordinates.
float scale() { return scale_; }
gfx::PointF offset() { return offset_; }
gfx::Rect applied_widget_rect() const { return applied_widget_rect_; }
gfx::Rect original_screen_rect() const { return original_view_screen_rect_; }
const WebScreenInfo& original_screen_info() { return original_screen_info_; }
void ChangeEmulationParams(
const WebDeviceEmulationParams& params);
// The following methods alter handlers' behavior for messages related to
// widget size and position.
void OnResizeMessage(const ViewMsg_Resize_Params& params);
void OnUpdateScreenRectsMessage(const gfx::Rect& view_screen_rect,
const gfx::Rect& window_screen_rect);
void OnShowContextMenu(ContextMenuParams* params);
gfx::Rect AdjustValidationMessageAnchor(const gfx::Rect& anchor);
private:
void Reapply();
void Apply(bool top_controls_shrink_blink_size,
float top_controls_height,
gfx::Rect resizer_rect,
bool is_fullscreen_granted,
blink::WebDisplayMode display_mode);
RenderWidget* widget_;
// Parameters as passed by RenderWidget::EnableScreenMetricsEmulation.
WebDeviceEmulationParams params_;
// The computed scale and offset used to fit widget into browser window.
float scale_;
gfx::PointF offset_;
// Widget rect as passed to webwidget.
gfx::Rect applied_widget_rect_;
// Original values to restore back after emulation ends.
gfx::Size original_size_;
gfx::Size original_physical_backing_size_;
gfx::Size original_visible_viewport_size_;
blink::WebScreenInfo original_screen_info_;
gfx::Rect original_view_screen_rect_;
gfx::Rect original_window_screen_rect_;
};
RenderWidget::ScreenMetricsEmulator::ScreenMetricsEmulator(
RenderWidget* widget,
const WebDeviceEmulationParams& params)
: widget_(widget),
params_(params),
scale_(1.f) {
original_size_ = widget_->size_;
original_physical_backing_size_ = widget_->physical_backing_size_;
original_visible_viewport_size_ = widget_->visible_viewport_size_;
original_screen_info_ = widget_->screen_info_;
original_view_screen_rect_ = widget_->view_screen_rect_;
original_window_screen_rect_ = widget_->window_screen_rect_;
Apply(widget_->top_controls_shrink_blink_size_,
widget_->top_controls_height_,
widget_->resizer_rect_,
widget_->is_fullscreen_granted_,
widget_->display_mode_);
}
RenderWidget::ScreenMetricsEmulator::~ScreenMetricsEmulator() {
widget_->screen_info_ = original_screen_info_;
widget_->SetDeviceScaleFactor(original_screen_info_.deviceScaleFactor);
widget_->SetScreenMetricsEmulationParameters(false, params_);
widget_->view_screen_rect_ = original_view_screen_rect_;
widget_->window_screen_rect_ = original_window_screen_rect_;
widget_->Resize(original_size_,
original_physical_backing_size_,
widget_->top_controls_shrink_blink_size_,
widget_->top_controls_height_,
original_visible_viewport_size_,
widget_->resizer_rect_,
widget_->is_fullscreen_granted_,
widget_->display_mode_,
NO_RESIZE_ACK);
}
void RenderWidget::ScreenMetricsEmulator::ChangeEmulationParams(
const WebDeviceEmulationParams& params) {
params_ = params;
Reapply();
}
void RenderWidget::ScreenMetricsEmulator::Reapply() {
Apply(widget_->top_controls_shrink_blink_size_,
widget_->top_controls_height_,
widget_->resizer_rect_,
widget_->is_fullscreen_granted_,
widget_->display_mode_);
}
void RenderWidget::ScreenMetricsEmulator::Apply(
bool top_controls_shrink_blink_size,
float top_controls_height,
gfx::Rect resizer_rect,
bool is_fullscreen_granted,
blink::WebDisplayMode display_mode) {
applied_widget_rect_.set_size(gfx::Size(params_.viewSize));
if (!applied_widget_rect_.width())
applied_widget_rect_.set_width(original_size_.width());
if (!applied_widget_rect_.height())
applied_widget_rect_.set_height(original_size_.height());
if (params_.fitToView && !original_size_.IsEmpty()) {
int original_width = std::max(original_size_.width(), 1);
int original_height = std::max(original_size_.height(), 1);
float width_ratio =
static_cast<float>(applied_widget_rect_.width()) / original_width;
float height_ratio =
static_cast<float>(applied_widget_rect_.height()) / original_height;
float ratio = std::max(1.0f, std::max(width_ratio, height_ratio));
scale_ = 1.f / ratio;
// Center emulated view inside available view space.
offset_.set_x(
(original_size_.width() - scale_ * applied_widget_rect_.width()) / 2);
offset_.set_y(
(original_size_.height() - scale_ * applied_widget_rect_.height()) / 2);
} else {
scale_ = params_.scale;
offset_.SetPoint(params_.offset.x, params_.offset.y);
}
if (params_.screenPosition == WebDeviceEmulationParams::Desktop) {
applied_widget_rect_.set_origin(original_view_screen_rect_.origin());
widget_->screen_info_.rect = original_screen_info_.rect;
widget_->screen_info_.availableRect = original_screen_info_.availableRect;
widget_->window_screen_rect_ = original_window_screen_rect_;
} else {
applied_widget_rect_.set_origin(params_.viewPosition);
gfx::Rect screen_rect = applied_widget_rect_;
if (!params_.screenSize.isEmpty()) {
screen_rect =
gfx::Rect(0, 0, params_.screenSize.width, params_.screenSize.height);
}
widget_->screen_info_.rect = screen_rect;
widget_->screen_info_.availableRect = screen_rect;
widget_->window_screen_rect_ = applied_widget_rect_;
}
float applied_device_scale_factor = params_.deviceScaleFactor ?
params_.deviceScaleFactor : original_screen_info_.deviceScaleFactor;
widget_->screen_info_.deviceScaleFactor = applied_device_scale_factor;
// Pass three emulation parameters to the blink side:
// - we keep the real device scale factor in compositor to produce sharp image
// even when emulating different scale factor;
// - in order to fit into view, WebView applies offset and scale to the
// root layer.
blink::WebDeviceEmulationParams modified_params = params_;
modified_params.deviceScaleFactor = original_screen_info_.deviceScaleFactor;
modified_params.offset = blink::WebFloatPoint(offset_.x(), offset_.y());
modified_params.scale = scale_;
widget_->SetScreenMetricsEmulationParameters(true, modified_params);
widget_->SetDeviceScaleFactor(applied_device_scale_factor);
widget_->view_screen_rect_ = applied_widget_rect_;
gfx::Size physical_backing_size = gfx::ToCeiledSize(gfx::ScaleSize(
original_size_, original_screen_info_.deviceScaleFactor));
widget_->Resize(applied_widget_rect_.size(),
physical_backing_size,
top_controls_shrink_blink_size,
top_controls_height,
applied_widget_rect_.size(),
resizer_rect,
is_fullscreen_granted,
display_mode,
NO_RESIZE_ACK);
}
void RenderWidget::ScreenMetricsEmulator::OnResizeMessage(
const ViewMsg_Resize_Params& params) {
bool need_ack = params.new_size != original_size_ &&
!params.new_size.IsEmpty() && !params.physical_backing_size.IsEmpty();
original_size_ = params.new_size;
original_physical_backing_size_ = params.physical_backing_size;
original_screen_info_ = params.screen_info;
original_visible_viewport_size_ = params.visible_viewport_size;
Apply(params.top_controls_shrink_blink_size,
params.top_controls_height,
params.resizer_rect,
params.is_fullscreen_granted,
params.display_mode);
if (need_ack) {
widget_->set_next_paint_is_resize_ack();
if (widget_->compositor_)
widget_->compositor_->SetNeedsRedrawRect(gfx::Rect(widget_->size_));
}
}
void RenderWidget::ScreenMetricsEmulator::OnUpdateScreenRectsMessage(
const gfx::Rect& view_screen_rect,
const gfx::Rect& window_screen_rect) {
original_view_screen_rect_ = view_screen_rect;
original_window_screen_rect_ = window_screen_rect;
if (params_.screenPosition == WebDeviceEmulationParams::Desktop)
Reapply();
}
void RenderWidget::ScreenMetricsEmulator::OnShowContextMenu(
ContextMenuParams* params) {
params->x *= scale_;
params->x += offset_.x();
params->y *= scale_;
params->y += offset_.y();
}
gfx::Rect RenderWidget::ScreenMetricsEmulator::AdjustValidationMessageAnchor(
const gfx::Rect& anchor) {
gfx::Rect scaled = gfx::ScaleToEnclosedRect(anchor, scale_);
scaled.set_x(scaled.x() + offset_.x());
scaled.set_y(scaled.y() + offset_.y());
return scaled;
}
// RenderWidget ---------------------------------------------------------------
RenderWidget::RenderWidget(CompositorDependencies* compositor_deps,
blink::WebPopupType popup_type,
const blink::WebScreenInfo& screen_info,
bool swapped_out,
bool hidden,
bool never_visible)
: routing_id_(MSG_ROUTING_NONE),
surface_id_(0),
compositor_deps_(compositor_deps),
webwidget_(nullptr),
opener_id_(MSG_ROUTING_NONE),
init_complete_(false),
top_controls_shrink_blink_size_(false),
top_controls_height_(0.f),
next_paint_flags_(0),
auto_resize_mode_(false),
need_update_rect_for_auto_resize_(false),
did_show_(false),
is_hidden_(hidden),
never_visible_(never_visible),
is_fullscreen_granted_(false),
display_mode_(blink::WebDisplayModeUndefined),
has_focus_(false),
handling_input_event_(false),
handling_event_overscroll_(nullptr),
handling_ime_event_(false),
handling_event_type_(WebInputEvent::Undefined),
ignore_ack_for_mouse_move_from_debugger_(false),
closing_(false),
host_closing_(false),
is_swapped_out_(swapped_out),
for_oopif_(false),
text_input_type_(ui::TEXT_INPUT_TYPE_NONE),
text_input_mode_(ui::TEXT_INPUT_MODE_DEFAULT),
text_input_flags_(0),
can_compose_inline_(true),
popup_type_(popup_type),
pending_window_rect_count_(0),
suppress_next_char_events_(false),
screen_info_(screen_info),
device_scale_factor_(screen_info_.deviceScaleFactor),
next_output_surface_id_(0),
#if defined(OS_ANDROID)
text_field_is_dirty_(false),
#endif
popup_origin_scale_for_emulation_(0.f),
frame_swap_message_queue_(new FrameSwapMessageQueue()),
resizing_mode_selector_(new ResizingModeSelector()),
context_menu_source_type_(ui::MENU_SOURCE_MOUSE),
has_host_context_menu_location_(false) {
if (!swapped_out)
RenderProcess::current()->AddRefProcess();
DCHECK(RenderThread::Get());
device_color_profile_.push_back('0');
#if defined(OS_ANDROID)
text_input_info_history_.push_back(blink::WebTextInputInfo());
#endif
}
RenderWidget::~RenderWidget() {
DCHECK(!webwidget_) << "Leaking our WebWidget!";
// If we are swapped out, we have released already.
if (!is_swapped_out_ && RenderProcess::current())
RenderProcess::current()->ReleaseProcess();
}
// static
RenderWidget* RenderWidget::Create(int32 opener_id,
CompositorDependencies* compositor_deps,
blink::WebPopupType popup_type,
const blink::WebScreenInfo& screen_info) {
DCHECK(opener_id != MSG_ROUTING_NONE);
scoped_refptr<RenderWidget> widget(new RenderWidget(
compositor_deps, popup_type, screen_info, false, false, false));
if (widget->Init(opener_id)) { // adds reference on success.
return widget.get();
}
return NULL;
}
// static
RenderWidget* RenderWidget::CreateForFrame(
int routing_id,
int surface_id,
bool hidden,
const blink::WebScreenInfo& screen_info,
CompositorDependencies* compositor_deps,
blink::WebLocalFrame* frame) {
CHECK_NE(routing_id, MSG_ROUTING_NONE);
scoped_refptr<RenderWidget> widget(
new RenderWidget(compositor_deps, blink::WebPopupTypeNone, screen_info,
false, hidden, false));
widget->routing_id_ = routing_id;
widget->surface_id_ = surface_id;
widget->for_oopif_ = true;
// DoInit increments the reference count on |widget|, keeping it alive after
// this function returns.
if (widget->DoInit(MSG_ROUTING_NONE,
RenderWidget::CreateWebFrameWidget(widget.get(), frame),
nullptr)) {
widget->CompleteInit();
return widget.get();
}
return nullptr;
}
// static
blink::WebWidget* RenderWidget::CreateWebFrameWidget(
RenderWidget* render_widget,
blink::WebLocalFrame* frame) {
return blink::WebFrameWidget::create(render_widget, frame);
}
// static
blink::WebWidget* RenderWidget::CreateWebWidget(RenderWidget* render_widget) {
switch (render_widget->popup_type_) {
case blink::WebPopupTypeNone: // Nothing to create.
break;
case blink::WebPopupTypePage:
return WebPagePopup::create(render_widget);
default:
NOTREACHED();
}
return NULL;
}
void RenderWidget::CloseForFrame() {
OnClose();
}
bool RenderWidget::Init(int32 opener_id) {
return DoInit(opener_id, RenderWidget::CreateWebWidget(this),
new ViewHostMsg_CreateWidget(opener_id, popup_type_,
&routing_id_, &surface_id_));
}
bool RenderWidget::DoInit(int32 opener_id,
WebWidget* web_widget,
IPC::SyncMessage* create_widget_message) {
DCHECK(!webwidget_);
if (opener_id != MSG_ROUTING_NONE)
opener_id_ = opener_id;
webwidget_ = web_widget;
bool result = true;
if (create_widget_message)
result = RenderThread::Get()->Send(create_widget_message);
if (result) {
RenderThread::Get()->AddRoute(routing_id_, this);
// Take a reference on behalf of the RenderThread. This will be balanced
// when we receive ViewMsg_Close.
AddRef();
if (RenderThreadImpl::current()) {
RenderThreadImpl::current()->WidgetCreated();
if (is_hidden_)
RenderThreadImpl::current()->WidgetHidden();
}
return true;
} else {
// The above Send can fail when the tab is closing.
return false;
}
}
// This is used to complete pending inits and non-pending inits.
void RenderWidget::CompleteInit() {
DCHECK(routing_id_ != MSG_ROUTING_NONE);
init_complete_ = true;
if (compositor_)
StartCompositor();
Send(new ViewHostMsg_RenderViewReady(routing_id_));
}
void RenderWidget::SetSwappedOut(bool is_swapped_out) {
// We should only toggle between states.
DCHECK(is_swapped_out_ != is_swapped_out);
is_swapped_out_ = is_swapped_out;
// If we are swapping out, we will call ReleaseProcess, allowing the process
// to exit if all of its RenderViews are swapped out. We wait until the
// WasSwappedOut call to do this, to allow the unload handler to finish.
// If we are swapping in, we call AddRefProcess to prevent the process from
// exiting.
if (!is_swapped_out_)
RenderProcess::current()->AddRefProcess();
}
void RenderWidget::WasSwappedOut() {
// If we have been swapped out and no one else is using this process,
// it's safe to exit now.
CHECK(is_swapped_out_);
RenderProcess::current()->ReleaseProcess();
}
void RenderWidget::SetPopupOriginAdjustmentsForEmulation(
ScreenMetricsEmulator* emulator) {
popup_origin_scale_for_emulation_ = emulator->scale();
popup_view_origin_for_emulation_ = emulator->applied_widget_rect().origin();
popup_screen_origin_for_emulation_ = gfx::Point(
emulator->original_screen_rect().origin().x() + emulator->offset().x(),
emulator->original_screen_rect().origin().y() + emulator->offset().y());
screen_info_ = emulator->original_screen_info();
device_scale_factor_ = screen_info_.deviceScaleFactor;
}
gfx::Rect RenderWidget::AdjustValidationMessageAnchor(const gfx::Rect& anchor) {
if (screen_metrics_emulator_)
return screen_metrics_emulator_->AdjustValidationMessageAnchor(anchor);
return anchor;
}
void RenderWidget::SetScreenMetricsEmulationParameters(
bool enabled,
const blink::WebDeviceEmulationParams& params) {
// This is only supported in RenderView.
NOTREACHED();
}
#if defined(OS_MACOSX) || defined(OS_ANDROID)
void RenderWidget::SetExternalPopupOriginAdjustmentsForEmulation(
ExternalPopupMenu* popup, ScreenMetricsEmulator* emulator) {
popup->SetOriginScaleAndOffsetForEmulation(
emulator->scale(), emulator->offset());
}
#endif
void RenderWidget::OnShowHostContextMenu(ContextMenuParams* params) {
if (screen_metrics_emulator_)
screen_metrics_emulator_->OnShowContextMenu(params);
}
bool RenderWidget::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(RenderWidget, message)
IPC_MESSAGE_HANDLER(InputMsg_HandleInputEvent, OnHandleInputEvent)
IPC_MESSAGE_HANDLER(InputMsg_CursorVisibilityChange,
OnCursorVisibilityChange)
IPC_MESSAGE_HANDLER(InputMsg_ImeSetComposition, OnImeSetComposition)
IPC_MESSAGE_HANDLER(InputMsg_ImeConfirmComposition, OnImeConfirmComposition)
IPC_MESSAGE_HANDLER(InputMsg_MouseCaptureLost, OnMouseCaptureLost)
IPC_MESSAGE_HANDLER(InputMsg_SetFocus, OnSetFocus)
IPC_MESSAGE_HANDLER(InputMsg_SyntheticGestureCompleted,
OnSyntheticGestureCompleted)
IPC_MESSAGE_HANDLER(ViewMsg_Close, OnClose)
IPC_MESSAGE_HANDLER(ViewMsg_CreatingNew_ACK, OnCreatingNewAck)
IPC_MESSAGE_HANDLER(ViewMsg_Resize, OnResize)
IPC_MESSAGE_HANDLER(ViewMsg_EnableDeviceEmulation,
OnEnableDeviceEmulation)
IPC_MESSAGE_HANDLER(ViewMsg_DisableDeviceEmulation,
OnDisableDeviceEmulation)
IPC_MESSAGE_HANDLER(ViewMsg_ColorProfile, OnColorProfile)
IPC_MESSAGE_HANDLER(ViewMsg_ChangeResizeRect, OnChangeResizeRect)
IPC_MESSAGE_HANDLER(ViewMsg_WasHidden, OnWasHidden)
IPC_MESSAGE_HANDLER(ViewMsg_WasShown, OnWasShown)
IPC_MESSAGE_HANDLER(ViewMsg_Repaint, OnRepaint)
IPC_MESSAGE_HANDLER(ViewMsg_SetTextDirection, OnSetTextDirection)
IPC_MESSAGE_HANDLER(ViewMsg_Move_ACK, OnRequestMoveAck)
IPC_MESSAGE_HANDLER(ViewMsg_UpdateScreenRects, OnUpdateScreenRects)
IPC_MESSAGE_HANDLER(ViewMsg_SetSurfaceIdNamespace, OnSetSurfaceIdNamespace)
#if defined(OS_ANDROID)
IPC_MESSAGE_HANDLER(InputMsg_ImeEventAck, OnImeEventAck)
IPC_MESSAGE_HANDLER(ViewMsg_ShowImeIfNeeded, OnShowImeIfNeeded)
#endif
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
bool RenderWidget::Send(IPC::Message* message) {
// Don't send any messages after the browser has told us to close, and filter
// most outgoing messages while swapped out.
if ((is_swapped_out_ &&
!SwappedOutMessages::CanSendWhileSwappedOut(message)) ||
closing_) {
delete message;
return false;
}
// If given a messsage without a routing ID, then assign our routing ID.
if (message->routing_id() == MSG_ROUTING_NONE)
message->set_routing_id(routing_id_);
return RenderThread::Get()->Send(message);
}
void RenderWidget::Resize(const gfx::Size& new_size,
const gfx::Size& physical_backing_size,
bool top_controls_shrink_blink_size,
float top_controls_height,
const gfx::Size& visible_viewport_size,
const gfx::Rect& resizer_rect,
bool is_fullscreen_granted,
blink::WebDisplayMode display_mode,
const ResizeAck resize_ack) {
if (resizing_mode_selector_->NeverUsesSynchronousResize()) {
// A resize ack shouldn't be requested if we have not ACK'd the previous
// one.
DCHECK(resize_ack != SEND_RESIZE_ACK || !next_paint_is_resize_ack());
DCHECK(resize_ack == SEND_RESIZE_ACK || resize_ack == NO_RESIZE_ACK);
}
// Ignore this during shutdown.
if (!webwidget_)
return;
if (compositor_) {
compositor_->setViewportSize(new_size, physical_backing_size);
}
physical_backing_size_ = physical_backing_size;
top_controls_shrink_blink_size_ = top_controls_shrink_blink_size;
top_controls_height_ = top_controls_height;
visible_viewport_size_ = visible_viewport_size;
resizer_rect_ = resizer_rect;
// NOTE: We may have entered fullscreen mode without changing our size.
bool fullscreen_change = is_fullscreen_granted_ != is_fullscreen_granted;
is_fullscreen_granted_ = is_fullscreen_granted;
display_mode_ = display_mode;
webwidget_->setTopControlsHeight(top_controls_height,
top_controls_shrink_blink_size_);
if (size_ != new_size) {
size_ = new_size;
// When resizing, we want to wait to paint before ACK'ing the resize. This
// ensures that we only resize as fast as we can paint. We only need to
// send an ACK if we are resized to a non-empty rect.
webwidget_->resize(new_size);
}
webwidget()->resizePinchViewport(gfx::Size(
visible_viewport_size.width(),
visible_viewport_size.height()));
if (new_size.IsEmpty() || physical_backing_size.IsEmpty()) {
// In this case there is no paint/composite and therefore no
// ViewHostMsg_UpdateRect to send the resize ack with. We'd need to send the
// ack through a fake ViewHostMsg_UpdateRect or a different message.
DCHECK_EQ(resize_ack, NO_RESIZE_ACK);
}
// Send the Resize_ACK flag once we paint again if requested.
if (resize_ack == SEND_RESIZE_ACK)
set_next_paint_is_resize_ack();
if (fullscreen_change)
DidToggleFullscreen();
// If a resize ack is requested and it isn't set-up, then no more resizes will
// come in and in general things will go wrong.
DCHECK(resize_ack != SEND_RESIZE_ACK || next_paint_is_resize_ack());
}
void RenderWidget::SetWindowRectSynchronously(
const gfx::Rect& new_window_rect) {
Resize(new_window_rect.size(),
new_window_rect.size(),
top_controls_shrink_blink_size_,
top_controls_height_,
new_window_rect.size(),
gfx::Rect(),
is_fullscreen_granted_,
display_mode_,
NO_RESIZE_ACK);
view_screen_rect_ = new_window_rect;
window_screen_rect_ = new_window_rect;
if (!did_show_)
initial_rect_ = new_window_rect;
}
void RenderWidget::OnClose() {
DCHECK(content::RenderThread::Get());
if (closing_)
return;
NotifyOnClose();
closing_ = true;
// Browser correspondence is no longer needed at this point.
if (routing_id_ != MSG_ROUTING_NONE) {
RenderThread::Get()->RemoveRoute(routing_id_);
SetHidden(false);
if (RenderThreadImpl::current())
RenderThreadImpl::current()->WidgetDestroyed();
}
if (for_oopif_) {
// Widgets for frames may be created and closed at any time while the frame
// is alive. However, the closing process must happen synchronously. Frame
// widget and frames hold pointers to each other. If Close() is deferred to
// the message loop like in the non-frame widget case, WebWidget::close()
// can end up accessing members of an already-deleted frame.
Close();
} else {
// If there is a Send call on the stack, then it could be dangerous to close
// now. Post a task that only gets invoked when there are no nested message
// loops.
base::ThreadTaskRunnerHandle::Get()->PostNonNestableTask(
FROM_HERE, base::Bind(&RenderWidget::Close, this));
}
// Balances the AddRef taken when we called AddRoute.
Release();
}
// Got a response from the browser after the renderer decided to create a new
// view.
void RenderWidget::OnCreatingNewAck() {
DCHECK(routing_id_ != MSG_ROUTING_NONE);
CompleteInit();
}
void RenderWidget::OnResize(const ViewMsg_Resize_Params& params) {
if (resizing_mode_selector_->ShouldAbortOnResize(this, params))
return;
if (screen_metrics_emulator_) {
screen_metrics_emulator_->OnResizeMessage(params);
return;
}
bool orientation_changed =
screen_info_.orientationAngle != params.screen_info.orientationAngle;
screen_info_ = params.screen_info;
SetDeviceScaleFactor(screen_info_.deviceScaleFactor);
Resize(params.new_size,
params.physical_backing_size,
params.top_controls_shrink_blink_size,
params.top_controls_height,
params.visible_viewport_size,
params.resizer_rect,
params.is_fullscreen_granted,
params.display_mode,
params.needs_resize_ack ? SEND_RESIZE_ACK : NO_RESIZE_ACK);
if (orientation_changed)
OnOrientationChange();
}
void RenderWidget::OnEnableDeviceEmulation(
const blink::WebDeviceEmulationParams& params) {
if (!screen_metrics_emulator_)
screen_metrics_emulator_.reset(new ScreenMetricsEmulator(this, params));
else
screen_metrics_emulator_->ChangeEmulationParams(params);
}
void RenderWidget::OnDisableDeviceEmulation() {
screen_metrics_emulator_.reset();
}
void RenderWidget::OnColorProfile(const std::vector<char>& color_profile) {
SetDeviceColorProfile(color_profile);
}
void RenderWidget::OnChangeResizeRect(const gfx::Rect& resizer_rect) {
if (resizer_rect_ == resizer_rect)
return;
resizer_rect_ = resizer_rect;
if (webwidget_)
webwidget_->didChangeWindowResizerRect();
}
void RenderWidget::OnWasHidden() {
TRACE_EVENT0("renderer", "RenderWidget::OnWasHidden");
// Go into a mode where we stop generating paint and scrolling events.
SetHidden(true);
FOR_EACH_OBSERVER(RenderFrameImpl, render_frames_,
WasHidden());
}
void RenderWidget::OnWasShown(bool needs_repainting,
const ui::LatencyInfo& latency_info) {
TRACE_EVENT0("renderer", "RenderWidget::OnWasShown");
// During shutdown we can just ignore this message.
if (!webwidget_)
return;
// See OnWasHidden
SetHidden(false);
FOR_EACH_OBSERVER(RenderFrameImpl, render_frames_,
WasShown());
if (!needs_repainting)
return;
// Generate a full repaint.
if (compositor_) {
ui::LatencyInfo swap_latency_info(latency_info);
scoped_ptr<cc::SwapPromiseMonitor> latency_info_swap_promise_monitor(
compositor_->CreateLatencyInfoSwapPromiseMonitor(&swap_latency_info));
compositor_->SetNeedsForcedRedraw();
}
ScheduleComposite();
}
void RenderWidget::OnRequestMoveAck() {
DCHECK(pending_window_rect_count_);
pending_window_rect_count_--;
}
GURL RenderWidget::GetURLForGraphicsContext3D() {
return GURL();
}
scoped_ptr<cc::OutputSurface> RenderWidget::CreateOutputSurface(bool fallback) {
// For widgets that are never visible, we don't start the compositor, so we
// never get a request for a cc::OutputSurface.
DCHECK(!never_visible_);
#if defined(OS_ANDROID)
if (SynchronousCompositorFactory* factory =
SynchronousCompositorFactory::GetInstance()) {
return factory->CreateOutputSurface(routing_id(), surface_id(),
frame_swap_message_queue_);
}
#endif
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
bool use_software = fallback;
if (command_line.HasSwitch(switches::kDisableGpuCompositing))
use_software = true;
scoped_refptr<ContextProviderCommandBuffer> context_provider;
scoped_refptr<ContextProviderCommandBuffer> worker_context_provider;
if (!use_software) {
context_provider = ContextProviderCommandBuffer::Create(
CreateGraphicsContext3D(true), RENDER_COMPOSITOR_CONTEXT);
if (!context_provider.get()) {
// Cause the compositor to wait and try again.
return scoped_ptr<cc::OutputSurface>();
}
worker_context_provider = ContextProviderCommandBuffer::Create(
CreateGraphicsContext3D(false), RENDER_WORKER_CONTEXT);
if (!worker_context_provider.get()) {
// Cause the compositor to wait and try again.
return scoped_ptr<cc::OutputSurface>();
}
}
uint32 output_surface_id = next_output_surface_id_++;
if (command_line.HasSwitch(switches::kEnableDelegatedRenderer)) {
DCHECK(compositor_deps_->GetCompositorImplThreadTaskRunner());
return scoped_ptr<cc::OutputSurface>(new DelegatedCompositorOutputSurface(
routing_id(), output_surface_id, context_provider,
worker_context_provider, frame_swap_message_queue_));
}
if (!context_provider.get()) {
scoped_ptr<cc::SoftwareOutputDevice> software_device(
new cc::SoftwareOutputDevice());
return scoped_ptr<cc::OutputSurface>(new CompositorOutputSurface(
routing_id(), output_surface_id, nullptr, nullptr,
software_device.Pass(), frame_swap_message_queue_, true));
}
if (command_line.HasSwitch(cc::switches::kCompositeToMailbox)) {
// Composite-to-mailbox is currently used for layout tests in order to cause
// them to draw inside in the renderer to do the readback there. This should
// no longer be the case when crbug.com/311404 is fixed.
DCHECK(RenderThreadImpl::current()->layout_test_mode());
cc::ResourceFormat format = cc::RGBA_8888;
if (base::SysInfo::IsLowEndDevice())
format = cc::RGB_565;
return scoped_ptr<cc::OutputSurface>(new MailboxOutputSurface(
routing_id(), output_surface_id, context_provider,
worker_context_provider, scoped_ptr<cc::SoftwareOutputDevice>(),
frame_swap_message_queue_, format));
}
bool use_swap_compositor_frame_message = false;
return scoped_ptr<cc::OutputSurface>(new CompositorOutputSurface(
routing_id(), output_surface_id, context_provider,
worker_context_provider, scoped_ptr<cc::SoftwareOutputDevice>(),
frame_swap_message_queue_, use_swap_compositor_frame_message));
}
void RenderWidget::OnSwapBuffersAborted() {
TRACE_EVENT0("renderer", "RenderWidget::OnSwapBuffersAborted");
// Schedule another frame so the compositor learns about it.
ScheduleComposite();
}
void RenderWidget::OnSwapBuffersPosted() {
TRACE_EVENT0("renderer", "RenderWidget::OnSwapBuffersPosted");
}
void RenderWidget::OnSwapBuffersComplete() {
TRACE_EVENT0("renderer", "RenderWidget::OnSwapBuffersComplete");
// Notify subclasses that composited rendering was flushed to the screen.
DidFlushPaint();
}
void RenderWidget::OnHandleInputEvent(const blink::WebInputEvent* input_event,
const ui::LatencyInfo& latency_info,
bool is_keyboard_shortcut) {
if (!input_event)
return;
base::AutoReset<bool> handling_input_event_resetter(&handling_input_event_,
true);
base::AutoReset<WebInputEvent::Type> handling_event_type_resetter(
&handling_event_type_, input_event->type);
// Calls into |didOverscroll()| while handling this event will populate
// |event_overscroll|, which in turn will be bundled with the event ack.
scoped_ptr<DidOverscrollParams> event_overscroll;
base::AutoReset<scoped_ptr<DidOverscrollParams>*>
handling_event_overscroll_resetter(&handling_event_overscroll_,
&event_overscroll);
#if defined(OS_ANDROID)
// On Android, when a key is pressed or sent from the Keyboard using IME,
// |AdapterInputConnection| generates input key events to make sure all JS
// listeners that monitor KeyUp and KeyDown events receive the proper key
// code. Since this input key event comes from IME, we need to set the
// IME event guard here to make sure it does not interfere with other IME
// events.
scoped_ptr<ImeEventGuard> ime_event_guard_maybe;
if (WebInputEvent::isKeyboardEventType(input_event->type)) {
const WebKeyboardEvent& key_event =
*static_cast<const WebKeyboardEvent*>(input_event);
// Some keys are special and it's essential that no events get blocked.
if (key_event.nativeKeyCode != AKEYCODE_TAB &&
key_event.nativeKeyCode != AKEYCODE_DPAD_CENTER &&
key_event.nativeKeyCode != AKEYCODE_DPAD_LEFT &&
key_event.nativeKeyCode != AKEYCODE_DPAD_RIGHT &&
key_event.nativeKeyCode != AKEYCODE_DPAD_UP &&
key_event.nativeKeyCode != AKEYCODE_DPAD_DOWN)
ime_event_guard_maybe.reset(new ImeEventGuard(this));
}
#endif
base::TimeTicks start_time;
if (base::TimeTicks::IsHighResolution())
start_time = base::TimeTicks::Now();
TRACE_EVENT1("renderer,benchmark", "RenderWidget::OnHandleInputEvent",
"event", WebInputEventTraits::GetName(input_event->type));
TRACE_EVENT_SYNTHETIC_DELAY_BEGIN("blink.HandleInputEvent");
TRACE_EVENT_WITH_FLOW1("input,benchmark",
"LatencyInfo.Flow",
TRACE_ID_DONT_MANGLE(latency_info.trace_id()),
TRACE_EVENT_FLAG_FLOW_IN | TRACE_EVENT_FLAG_FLOW_OUT,
"step", "HandleInputEventMain");
// If we don't have a high res timer, these metrics won't be accurate enough
// to be worth collecting. Note that this does introduce some sampling bias.
if (!start_time.is_null())
LogInputEventLatencyUma(*input_event, start_time, latency_info);
scoped_ptr<cc::SwapPromiseMonitor> latency_info_swap_promise_monitor;
ui::LatencyInfo swap_latency_info(latency_info);
if (compositor_) {
latency_info_swap_promise_monitor =
compositor_->CreateLatencyInfoSwapPromiseMonitor(&swap_latency_info)
.Pass();
}
bool prevent_default = false;
if (WebInputEvent::isMouseEventType(input_event->type)) {
const WebMouseEvent& mouse_event =
*static_cast<const WebMouseEvent*>(input_event);
TRACE_EVENT2("renderer", "HandleMouseMove",
"x", mouse_event.x, "y", mouse_event.y);
context_menu_source_type_ = ui::MENU_SOURCE_MOUSE;
prevent_default = WillHandleMouseEvent(mouse_event);
}
if (WebInputEvent::isKeyboardEventType(input_event->type)) {
context_menu_source_type_ = ui::MENU_SOURCE_KEYBOARD;
#if defined(OS_ANDROID)
// The DPAD_CENTER key on Android has a dual semantic: (1) in the general
// case it should behave like a select key (i.e. causing a click if a button
// is focused). However, if a text field is focused (2), its intended
// behavior is to just show the IME and don't propagate the key.
// A typical use case is a web form: the DPAD_CENTER should bring up the IME
// when clicked on an input text field and cause the form submit if clicked
// when the submit button is focused, but not vice-versa.
// The UI layer takes care of translating DPAD_CENTER into a RETURN key,
// but at this point we have to swallow the event for the scenario (2).
const WebKeyboardEvent& key_event =
*static_cast<const WebKeyboardEvent*>(input_event);
if (key_event.nativeKeyCode == AKEYCODE_DPAD_CENTER &&
GetTextInputType() != ui::TEXT_INPUT_TYPE_NONE) {
OnShowImeIfNeeded();
prevent_default = true;
}
#endif
}
if (WebInputEvent::isGestureEventType(input_event->type)) {
const WebGestureEvent& gesture_event =
*static_cast<const WebGestureEvent*>(input_event);
context_menu_source_type_ = ui::MENU_SOURCE_TOUCH;
prevent_default = prevent_default || WillHandleGestureEvent(gesture_event);
}
bool processed = prevent_default;
if (input_event->type != WebInputEvent::Char || !suppress_next_char_events_) {
suppress_next_char_events_ = false;
if (!processed && webwidget_)
processed = webwidget_->handleInputEvent(*input_event);
}
// If this RawKeyDown event corresponds to a browser keyboard shortcut and
// it's not processed by webkit, then we need to suppress the upcoming Char
// events.
if (!processed && is_keyboard_shortcut)
suppress_next_char_events_ = true;
InputEventAckState ack_result = processed ?
INPUT_EVENT_ACK_STATE_CONSUMED : INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
if (!processed && input_event->type == WebInputEvent::TouchStart) {
const WebTouchEvent& touch_event =
*static_cast<const WebTouchEvent*>(input_event);
// Hit-test for all the pressed touch points. If there is a touch-handler
// for any of the touch points, then the renderer should continue to receive
// touch events.
ack_result = INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS;
for (size_t i = 0; i < touch_event.touchesLength; ++i) {
if (touch_event.touches[i].state == WebTouchPoint::StatePressed &&
HasTouchEventHandlersAt(
gfx::ToFlooredPoint(touch_event.touches[i].position))) {
ack_result = INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
break;
}
}
}
// Send mouse wheel events and their disposition to the compositor thread, so
// that they can be used to produce the elastic overscroll effect on Mac.
if (input_event->type == WebInputEvent::MouseWheel) {
ObserveWheelEventAndResult(
static_cast<const WebMouseWheelEvent&>(*input_event),
event_overscroll ? event_overscroll->latest_overscroll_delta
: gfx::Vector2dF(),
processed);
}
bool frame_pending = compositor_ && compositor_->BeginMainFrameRequested();
// If we don't have a fast and accurate Now(), we assume the input handlers
// are heavy and rate limit them.
bool rate_limiting_wanted =
input_event->type == WebInputEvent::MouseMove ||
input_event->type == WebInputEvent::MouseWheel;
if (rate_limiting_wanted && !start_time.is_null()) {
base::TimeTicks end_time = base::TimeTicks::Now();
total_input_handling_time_this_frame_ += (end_time - start_time);
rate_limiting_wanted =
total_input_handling_time_this_frame_.InMicroseconds() >
kInputHandlingTimeThrottlingThresholdMicroseconds;
}
TRACE_EVENT_SYNTHETIC_DELAY_END("blink.HandleInputEvent");
// Note that we can't use handling_event_type_ here since it will be overriden
// by reentrant calls for events after the paused one.
bool no_ack = ignore_ack_for_mouse_move_from_debugger_ &&
input_event->type == WebInputEvent::MouseMove;
if (WebInputEventTraits::WillReceiveAckFromRenderer(*input_event) &&
!no_ack) {
InputEventAck ack(input_event->type, ack_result, swap_latency_info,
event_overscroll.Pass(),
WebInputEventTraits::GetUniqueTouchEventId(*input_event));
scoped_ptr<IPC::Message> response(
new InputHostMsg_HandleInputEvent_ACK(routing_id_, ack));
if (rate_limiting_wanted && frame_pending && !is_hidden_) {
// We want to rate limit the input events in this case, so we'll wait for
// painting to finish before ACKing this message.
TRACE_EVENT_INSTANT0("renderer",
"RenderWidget::OnHandleInputEvent ack throttled",
TRACE_EVENT_SCOPE_THREAD);
if (pending_input_event_ack_) {
TRACE_EVENT_ASYNC_END0("input", "RenderWidget::ThrottledInputEventAck",
pending_input_event_ack_.get());
// As two different kinds of events could cause us to postpone an ack
// we send it now, if we have one pending. The Browser should never
// send us the same kind of event we are delaying the ack for.
Send(pending_input_event_ack_.release());
}
pending_input_event_ack_ = response.Pass();
TRACE_EVENT_ASYNC_BEGIN0("input", "RenderWidget::ThrottledInputEventAck",
pending_input_event_ack_.get());
if (compositor_)
compositor_->NotifyInputThrottledUntilCommit();
} else {
Send(response.release());
}
} else {
DCHECK(!event_overscroll) << "Unexpected overscroll for un-acked event";
}
if (!no_ack && RenderThreadImpl::current()) {
RenderThreadImpl::current()
->GetRendererScheduler()
->DidHandleInputEventOnMainThread(*input_event);
}
if (input_event->type == WebInputEvent::MouseMove)
ignore_ack_for_mouse_move_from_debugger_ = false;
#if defined(OS_ANDROID)
// Allow the IME to be shown when the focus changes as a consequence
// of a processed touch end event.
if (input_event->type == WebInputEvent::TouchEnd && processed)
UpdateTextInputState(SHOW_IME_IF_NEEDED, FROM_NON_IME);
#elif defined(USE_AURA)
// Show the virtual keyboard if enabled and a user gesture triggers a focus
// change.
if (processed && (input_event->type == WebInputEvent::TouchEnd ||
input_event->type == WebInputEvent::MouseUp)) {
UpdateTextInputState(SHOW_IME_IF_NEEDED, FROM_IME);
}
#endif
if (!prevent_default) {
if (WebInputEvent::isKeyboardEventType(input_event->type))
DidHandleKeyEvent();
}
// TODO(rouslan): Fix ChromeOS and Windows 8 behavior of autofill popup with
// virtual keyboard.
#if !defined(OS_ANDROID)
// Virtual keyboard is not supported, so react to focus change immediately.
if (processed && (input_event->type == WebInputEvent::TouchEnd ||
input_event->type == WebInputEvent::MouseUp)) {
FocusChangeComplete();
}
#endif
}
void RenderWidget::OnCursorVisibilityChange(bool is_visible) {
if (webwidget_)
webwidget_->setCursorVisibilityState(is_visible);
}
void RenderWidget::OnMouseCaptureLost() {
if (webwidget_)
webwidget_->mouseCaptureLost();
}
void RenderWidget::OnSetFocus(bool enable) {
has_focus_ = enable;
if (webwidget_)
webwidget_->setFocus(enable);
}
void RenderWidget::ClearFocus() {
// We may have got the focus from the browser before this gets processed, in
// which case we do not want to unfocus ourself.
if (!has_focus_ && webwidget_)
webwidget_->setFocus(false);
}
void RenderWidget::FlushPendingInputEventAck() {
if (pending_input_event_ack_) {
TRACE_EVENT_ASYNC_END0("input", "RenderWidget::ThrottledInputEventAck",
pending_input_event_ack_.get());
Send(pending_input_event_ack_.release());
}
total_input_handling_time_this_frame_ = base::TimeDelta();
}
///////////////////////////////////////////////////////////////////////////////
// WebWidgetClient
void RenderWidget::didAutoResize(const WebSize& new_size) {
if (size_.width() != new_size.width || size_.height() != new_size.height) {
size_ = new_size;
if (resizing_mode_selector_->is_synchronous_mode()) {
WebRect new_pos(rootWindowRect().x,
rootWindowRect().y,
new_size.width,
new_size.height);
view_screen_rect_ = new_pos;
window_screen_rect_ = new_pos;
}
AutoResizeCompositor();
if (!resizing_mode_selector_->is_synchronous_mode())
need_update_rect_for_auto_resize_ = true;
}
}
void RenderWidget::AutoResizeCompositor() {
physical_backing_size_ = gfx::ToCeiledSize(gfx::ScaleSize(size_,
device_scale_factor_));
if (compositor_)
compositor_->setViewportSize(size_, physical_backing_size_);
}
void RenderWidget::initializeLayerTreeView() {
DCHECK(!host_closing_);
compositor_ = RenderWidgetCompositor::Create(this, compositor_deps_);
compositor_->setViewportSize(size_, physical_backing_size_);
if (init_complete_)
StartCompositor();
}
void RenderWidget::WillCloseLayerTreeView() {
if (host_closing_)
return;
// Prevent new compositors or output surfaces from being created.
host_closing_ = true;
// Always send this notification to prevent new layer tree views from
// being created, even if one hasn't been created yet.
if (webwidget_)
webwidget_->willCloseLayerTreeView();
}
blink::WebLayerTreeView* RenderWidget::layerTreeView() {
return compositor_.get();
}
void RenderWidget::didFirstVisuallyNonEmptyLayout() {
QueueMessage(
new ViewHostMsg_DidFirstVisuallyNonEmptyPaint(routing_id_),
MESSAGE_DELIVERY_POLICY_WITH_VISUAL_STATE);
}
void RenderWidget::didFirstLayoutAfterFinishedParsing() {
// TODO(dglazkov): Use this hook to drive CapturePageInfo.
}
void RenderWidget::WillBeginCompositorFrame() {
TRACE_EVENT0("gpu", "RenderWidget::willBeginCompositorFrame");
// The UpdateTextInputState can result in further layout and possibly
// enable GPU acceleration so they need to be called before any painting
// is done.
UpdateTextInputState(NO_SHOW_IME, FROM_NON_IME);
UpdateSelectionBounds();
}
void RenderWidget::DidCommitCompositorFrame() {
FOR_EACH_OBSERVER(RenderFrameImpl, render_frames_,
DidCommitCompositorFrame());
FOR_EACH_OBSERVER(RenderFrameProxy, render_frame_proxies_,
DidCommitCompositorFrame());
#if defined(VIDEO_HOLE)
FOR_EACH_OBSERVER(RenderFrameImpl, video_hole_frames_,
DidCommitCompositorFrame());
#endif // defined(VIDEO_HOLE)
FlushPendingInputEventAck();
}
void RenderWidget::DidCommitAndDrawCompositorFrame() {
// NOTE: Tests may break if this event is renamed or moved. See
// tab_capture_performancetest.cc.
TRACE_EVENT0("gpu", "RenderWidget::DidCommitAndDrawCompositorFrame");
// Notify subclasses that we initiated the paint operation.
DidInitiatePaint();
}
void RenderWidget::DidCompleteSwapBuffers() {
TRACE_EVENT0("renderer", "RenderWidget::DidCompleteSwapBuffers");
// Notify subclasses threaded composited rendering was flushed to the screen.
DidFlushPaint();
if (!next_paint_flags_ &&
!need_update_rect_for_auto_resize_ &&
!plugin_window_moves_.size()) {
return;
}
ViewHostMsg_UpdateRect_Params params;
params.view_size = size_;
params.plugin_window_moves.swap(plugin_window_moves_);
params.flags = next_paint_flags_;
Send(new ViewHostMsg_UpdateRect(routing_id_, params));
next_paint_flags_ = 0;
need_update_rect_for_auto_resize_ = false;
}
void RenderWidget::ScheduleComposite() {
if (compositor_ &&
compositor_deps_->GetCompositorImplThreadTaskRunner().get()) {
compositor_->setNeedsAnimate();
}
}
void RenderWidget::ScheduleCompositeWithForcedRedraw() {
if (compositor_) {
// Regardless of whether threaded compositing is enabled, always
// use this mechanism to force the compositor to redraw. However,
// the invalidation code path below is still needed for the
// non-threaded case.
compositor_->SetNeedsForcedRedraw();
}
ScheduleComposite();
}
// static
scoped_ptr<cc::SwapPromise> RenderWidget::QueueMessageImpl(
IPC::Message* msg,
MessageDeliveryPolicy policy,
FrameSwapMessageQueue* frame_swap_message_queue,
scoped_refptr<IPC::SyncMessageFilter> sync_message_filter,
int source_frame_number) {
bool first_message_for_frame = false;
frame_swap_message_queue->QueueMessageForFrame(policy,
source_frame_number,
make_scoped_ptr(msg),
&first_message_for_frame);
if (first_message_for_frame) {
scoped_ptr<cc::SwapPromise> promise(new QueueMessageSwapPromise(
sync_message_filter, frame_swap_message_queue, source_frame_number));
return promise;
}
return nullptr;
}
void RenderWidget::QueueMessage(IPC::Message* msg,
MessageDeliveryPolicy policy) {
// RenderThreadImpl::current() is NULL in some tests.
if (!compositor_ || !RenderThreadImpl::current()) {
Send(msg);
return;
}
scoped_ptr<cc::SwapPromise> swap_promise =
QueueMessageImpl(msg,
policy,
frame_swap_message_queue_.get(),
RenderThreadImpl::current()->sync_message_filter(),
compositor_->GetSourceFrameNumber());
if (swap_promise) {
compositor_->QueueSwapPromise(swap_promise.Pass());
// Request a commit. This might either A) request a commit ahead of time
// or B) request a commit which is not needed because there are not
// pending updates. If B) then the commit will be skipped and the swap
// promises will be broken (see EarlyOut_NoUpdates). To achieve that we
// call SetNeedsUpdateLayers instead of SetNeedsCommit so that
// can_cancel_commit is not unset.
compositor_->SetNeedsUpdateLayers();
}
}
void RenderWidget::didChangeCursor(const WebCursorInfo& cursor_info) {
// TODO(darin): Eliminate this temporary.
WebCursor cursor;
InitializeCursorFromWebKitCursorInfo(&cursor, cursor_info);
// Only send a SetCursor message if we need to make a change.
if (!current_cursor_.IsEqual(cursor)) {
current_cursor_ = cursor;
Send(new ViewHostMsg_SetCursor(routing_id_, cursor));
}
}
// We are supposed to get a single call to Show for a newly created RenderWidget
// that was created via RenderWidget::CreateWebView. So, we wait until this
// point to dispatch the ShowWidget message.
//
// This method provides us with the information about how to display the newly
// created RenderWidget (i.e., as a blocked popup or as a new tab).
//
void RenderWidget::show(WebNavigationPolicy) {
DCHECK(!did_show_) << "received extraneous Show call";
DCHECK(routing_id_ != MSG_ROUTING_NONE);
DCHECK(opener_id_ != MSG_ROUTING_NONE);
if (did_show_)
return;
did_show_ = true;
// NOTE: initial_rect_ may still have its default values at this point, but
// that's okay. It'll be ignored if as_popup is false, or the browser
// process will impose a default position otherwise.
Send(new ViewHostMsg_ShowWidget(opener_id_, routing_id_, initial_rect_));
SetPendingWindowRect(initial_rect_);
}
void RenderWidget::didFocus() {
}
void RenderWidget::didBlur() {
}
void RenderWidget::DoDeferredClose() {
WillCloseLayerTreeView();
Send(new ViewHostMsg_Close(routing_id_));
}
void RenderWidget::NotifyOnClose() {
FOR_EACH_OBSERVER(RenderFrameImpl, render_frames_, WidgetWillClose());
}
void RenderWidget::closeWidgetSoon() {
DCHECK(content::RenderThread::Get());
if (is_swapped_out_) {
// This widget is currently swapped out, and the active widget is in a
// different process. Have the browser route the close request to the
// active widget instead, so that the correct unload handlers are run.
Send(new ViewHostMsg_RouteCloseEvent(routing_id_));
return;
}
// If a page calls window.close() twice, we'll end up here twice, but that's
// OK. It is safe to send multiple Close messages.
// Ask the RenderWidgetHost to initiate close. We could be called from deep
// in Javascript. If we ask the RendwerWidgetHost to close now, the window
// could be closed before the JS finishes executing. So instead, post a
// message back to the message loop, which won't run until the JS is
// complete, and then the Close message can be sent.
base::ThreadTaskRunnerHandle::Get()->PostTask(
FROM_HERE, base::Bind(&RenderWidget::DoDeferredClose, this));
}
void RenderWidget::QueueSyntheticGesture(
scoped_ptr<SyntheticGestureParams> gesture_params,
const SyntheticGestureCompletionCallback& callback) {
DCHECK(!callback.is_null());
pending_synthetic_gesture_callbacks_.push(callback);
SyntheticGesturePacket gesture_packet;
gesture_packet.set_gesture_params(gesture_params.Pass());
Send(new InputHostMsg_QueueSyntheticGesture(routing_id_, gesture_packet));
}
void RenderWidget::Close() {
screen_metrics_emulator_.reset();
WillCloseLayerTreeView();
compositor_.reset();
if (webwidget_) {
webwidget_->close();
webwidget_ = NULL;
}
}
WebRect RenderWidget::windowRect() {
if (pending_window_rect_count_)
return pending_window_rect_;
return view_screen_rect_;
}
void RenderWidget::setToolTipText(const blink::WebString& text,
WebTextDirection hint) {
Send(new ViewHostMsg_SetTooltipText(routing_id_, text, hint));
}
void RenderWidget::setWindowRect(const WebRect& rect) {
WebRect window_rect = rect;
if (popup_origin_scale_for_emulation_) {
float scale = popup_origin_scale_for_emulation_;
window_rect.x = popup_screen_origin_for_emulation_.x() +
(window_rect.x - popup_view_origin_for_emulation_.x()) * scale;
window_rect.y = popup_screen_origin_for_emulation_.y() +
(window_rect.y - popup_view_origin_for_emulation_.y()) * scale;
}
if (!resizing_mode_selector_->is_synchronous_mode()) {
if (did_show_) {
Send(new ViewHostMsg_RequestMove(routing_id_, window_rect));
SetPendingWindowRect(window_rect);
} else {
initial_rect_ = window_rect;
}
} else {
SetWindowRectSynchronously(window_rect);
}
}
void RenderWidget::SetPendingWindowRect(const WebRect& rect) {
pending_window_rect_ = rect;
pending_window_rect_count_++;
}
WebRect RenderWidget::rootWindowRect() {
if (pending_window_rect_count_) {
// NOTE(mbelshe): If there is a pending_window_rect_, then getting
// the RootWindowRect is probably going to return wrong results since the
// browser may not have processed the Move yet. There isn't really anything
// good to do in this case, and it shouldn't happen - since this size is
// only really needed for windowToScreen, which is only used for Popups.
return pending_window_rect_;
}
return window_screen_rect_;
}
WebRect RenderWidget::windowResizerRect() {
return resizer_rect_;
}
void RenderWidget::OnImeSetComposition(
const base::string16& text,
const std::vector<WebCompositionUnderline>& underlines,
int selection_start, int selection_end) {
if (!ShouldHandleImeEvent())
return;
ImeEventGuard guard(this);
if (!webwidget_->setComposition(
text, WebVector<WebCompositionUnderline>(underlines),
selection_start, selection_end)) {
// If we failed to set the composition text, then we need to let the browser
// process to cancel the input method's ongoing composition session, to make
// sure we are in a consistent state.
Send(new InputHostMsg_ImeCancelComposition(routing_id()));
}
UpdateCompositionInfo(true);
}
void RenderWidget::OnImeConfirmComposition(const base::string16& text,
const gfx::Range& replacement_range,
bool keep_selection) {
if (!ShouldHandleImeEvent())
return;
ImeEventGuard guard(this);
handling_input_event_ = true;
if (text.length())
webwidget_->confirmComposition(text);
else if (keep_selection)
webwidget_->confirmComposition(WebWidget::KeepSelection);
else
webwidget_->confirmComposition(WebWidget::DoNotKeepSelection);
handling_input_event_ = false;
UpdateCompositionInfo(true);
}
void RenderWidget::OnRepaint(gfx::Size size_to_paint) {
// During shutdown we can just ignore this message.
if (!webwidget_)
return;
// Even if the browser provides an empty damage rect, it's still expecting to
// receive a repaint ack so just damage the entire widget bounds.
if (size_to_paint.IsEmpty()) {
size_to_paint = size_;
}
set_next_paint_is_repaint_ack();
if (compositor_)
compositor_->SetNeedsRedrawRect(gfx::Rect(size_to_paint));
}
void RenderWidget::OnSyntheticGestureCompleted() {
DCHECK(!pending_synthetic_gesture_callbacks_.empty());
pending_synthetic_gesture_callbacks_.front().Run();
pending_synthetic_gesture_callbacks_.pop();
}
void RenderWidget::OnSetTextDirection(WebTextDirection direction) {
if (!webwidget_)
return;
webwidget_->setTextDirection(direction);
}
void RenderWidget::OnUpdateScreenRects(const gfx::Rect& view_screen_rect,
const gfx::Rect& window_screen_rect) {
if (screen_metrics_emulator_) {
screen_metrics_emulator_->OnUpdateScreenRectsMessage(
view_screen_rect, window_screen_rect);
} else {
view_screen_rect_ = view_screen_rect;
window_screen_rect_ = window_screen_rect;
}
Send(new ViewHostMsg_UpdateScreenRects_ACK(routing_id()));
}
void RenderWidget::OnSetSurfaceIdNamespace(uint32_t surface_id_namespace) {
if (compositor_)
compositor_->SetSurfaceIdNamespace(surface_id_namespace);
}
void RenderWidget::showImeIfNeeded() {
OnShowImeIfNeeded();
}
void RenderWidget::OnShowImeIfNeeded() {
#if defined(OS_ANDROID) || defined(USE_AURA)
UpdateTextInputState(SHOW_IME_IF_NEEDED, FROM_NON_IME);
#endif
// TODO(rouslan): Fix ChromeOS and Windows 8 behavior of autofill popup with
// virtual keyboard.
#if !defined(OS_ANDROID)
FocusChangeComplete();
#endif
}
#if defined(OS_ANDROID)
void RenderWidget::OnImeEventSentForAck(const blink::WebTextInputInfo& info) {
text_input_info_history_.push_back(info);
}
void RenderWidget::OnImeEventAck() {
DCHECK_GE(text_input_info_history_.size(), 1u);
text_input_info_history_.pop_front();
}
#endif
bool RenderWidget::ShouldHandleImeEvent() {
#if defined(OS_ANDROID)
if (!webwidget_)
return false;
// We cannot handle IME events if there is any chance that the event we are
// receiving here from the browser is based on the state that is different
// from our current one as indicated by |text_input_info_|.
// The states the browser might be in are:
// text_input_info_history_[0] - current state ack'd by browser
// text_input_info_history_[1...N] - pending state changes
for (size_t i = 0u; i < text_input_info_history_.size() - 1u; ++i) {
if (text_input_info_history_[i] != text_input_info_)
return false;
}
return true;
#else
return !!webwidget_;
#endif
}
bool RenderWidget::SendAckForMouseMoveFromDebugger() {
if (handling_event_type_ == WebInputEvent::MouseMove) {
// If we pause multiple times during a single mouse move event, we should
// only send ACK once.
if (!ignore_ack_for_mouse_move_from_debugger_) {
InputEventAck ack(handling_event_type_, INPUT_EVENT_ACK_STATE_CONSUMED);
Send(new InputHostMsg_HandleInputEvent_ACK(routing_id_, ack));
return true;
}
}
return false;
}
void RenderWidget::IgnoreAckForMouseMoveFromDebugger() {
ignore_ack_for_mouse_move_from_debugger_ = true;
}
void RenderWidget::SetDeviceScaleFactor(float device_scale_factor) {
if (device_scale_factor_ == device_scale_factor)
return;
device_scale_factor_ = device_scale_factor;
ScheduleComposite();
}
bool RenderWidget::SetDeviceColorProfile(
const std::vector<char>& color_profile) {
if (device_color_profile_ == color_profile)
return false;
device_color_profile_ = color_profile;
return true;
}
void RenderWidget::ResetDeviceColorProfileForTesting() {
if (!device_color_profile_.empty())
device_color_profile_.clear();
device_color_profile_.push_back('0');
}
void RenderWidget::OnOrientationChange() {
}
gfx::Vector2d RenderWidget::GetScrollOffset() {
// Bare RenderWidgets don't support scroll offset.
return gfx::Vector2d();
}
void RenderWidget::SetHidden(bool hidden) {
if (is_hidden_ == hidden)
return;
// The status has changed. Tell the RenderThread about it and ensure
// throttled acks are released in case frame production ceases.
is_hidden_ = hidden;
FlushPendingInputEventAck();
if (is_hidden_)
RenderThreadImpl::current()->WidgetHidden();
else
RenderThreadImpl::current()->WidgetRestored();
}
void RenderWidget::DidToggleFullscreen() {
if (!webwidget_)
return;
if (is_fullscreen_granted_) {
webwidget_->didEnterFullScreen();
} else {
webwidget_->didExitFullScreen();
}
}
bool RenderWidget::next_paint_is_resize_ack() const {
return ViewHostMsg_UpdateRect_Flags::is_resize_ack(next_paint_flags_);
}
void RenderWidget::set_next_paint_is_resize_ack() {
next_paint_flags_ |= ViewHostMsg_UpdateRect_Flags::IS_RESIZE_ACK;
}
void RenderWidget::set_next_paint_is_repaint_ack() {
next_paint_flags_ |= ViewHostMsg_UpdateRect_Flags::IS_REPAINT_ACK;
}
static bool IsDateTimeInput(ui::TextInputType type) {
return type == ui::TEXT_INPUT_TYPE_DATE ||
type == ui::TEXT_INPUT_TYPE_DATE_TIME ||
type == ui::TEXT_INPUT_TYPE_DATE_TIME_LOCAL ||
type == ui::TEXT_INPUT_TYPE_MONTH ||
type == ui::TEXT_INPUT_TYPE_TIME ||
type == ui::TEXT_INPUT_TYPE_WEEK;
}
void RenderWidget::StartHandlingImeEvent() {
DCHECK(!handling_ime_event_);
handling_ime_event_ = true;
}
void RenderWidget::FinishHandlingImeEvent() {
DCHECK(handling_ime_event_);
handling_ime_event_ = false;
// While handling an ime event, text input state and selection bounds updates
// are ignored. These must explicitly be updated once finished handling the
// ime event.
UpdateSelectionBounds();
#if defined(OS_ANDROID)
UpdateTextInputState(NO_SHOW_IME, FROM_IME);
#endif
}
void RenderWidget::UpdateTextInputState(ShowIme show_ime,
ChangeSource change_source) {
TRACE_EVENT0("renderer", "RenderWidget::UpdateTextInputState");
if (handling_ime_event_)
return;
ui::TextInputType new_type = GetTextInputType();
if (IsDateTimeInput(new_type))
return; // Not considered as a text input field in WebKit/Chromium.
blink::WebTextInputInfo new_info;
if (webwidget_)
new_info = webwidget_->textInputInfo();
const ui::TextInputMode new_mode = ConvertInputMode(new_info.inputMode);
bool new_can_compose_inline = CanComposeInline();
// Only sends text input params if they are changed or if the ime should be
// shown.
if (show_ime == SHOW_IME_IF_NEEDED ||
(text_input_type_ != new_type ||
text_input_mode_ != new_mode ||
text_input_info_ != new_info ||
can_compose_inline_ != new_can_compose_inline)
#if defined(OS_ANDROID)
|| text_field_is_dirty_
#endif
) {
ViewHostMsg_TextInputState_Params params;
params.type = new_type;
params.mode = new_mode;
params.flags = new_info.flags;
params.value = new_info.value.utf8();
params.selection_start = new_info.selectionStart;
params.selection_end = new_info.selectionEnd;
params.composition_start = new_info.compositionStart;
params.composition_end = new_info.compositionEnd;
params.can_compose_inline = new_can_compose_inline;
params.show_ime_if_needed = (show_ime == SHOW_IME_IF_NEEDED);
#if defined(USE_AURA)
params.is_non_ime_change = true;
#endif
#if defined(OS_ANDROID)
params.is_non_ime_change = (change_source == FROM_NON_IME) ||
text_field_is_dirty_;
if (params.is_non_ime_change)
OnImeEventSentForAck(new_info);
text_field_is_dirty_ = false;
#endif
Send(new ViewHostMsg_TextInputStateChanged(routing_id(), params));
text_input_info_ = new_info;
text_input_type_ = new_type;
text_input_mode_ = new_mode;
can_compose_inline_ = new_can_compose_inline;
text_input_flags_ = new_info.flags;
}
}
void RenderWidget::GetSelectionBounds(gfx::Rect* focus, gfx::Rect* anchor) {
WebRect focus_webrect;
WebRect anchor_webrect;
webwidget_->selectionBounds(focus_webrect, anchor_webrect);
*focus = focus_webrect;
*anchor = anchor_webrect;
}
void RenderWidget::UpdateSelectionBounds() {
TRACE_EVENT0("renderer", "RenderWidget::UpdateSelectionBounds");
if (!webwidget_)
return;
if (handling_ime_event_)
return;
#if defined(USE_AURA)
// TODO(mohsen): For now, always send explicit selection IPC notifications for
// Aura beucause composited selection updates are not working for webview tags
// which regresses IME inside webview. Remove this when composited selection
// updates are fixed for webviews. See, http://crbug.com/510568.
bool send_ipc = true;
#else
// With composited selection updates, the selection bounds will be reported
// directly by the compositor, in which case explicit IPC selection
// notifications should be suppressed.
bool send_ipc =
!blink::WebRuntimeFeatures::isCompositedSelectionUpdateEnabled();
#endif
if (send_ipc) {
ViewHostMsg_SelectionBounds_Params params;
GetSelectionBounds(&params.anchor_rect, &params.focus_rect);
if (selection_anchor_rect_ != params.anchor_rect ||
selection_focus_rect_ != params.focus_rect) {
selection_anchor_rect_ = params.anchor_rect;
selection_focus_rect_ = params.focus_rect;
webwidget_->selectionTextDirection(params.focus_dir, params.anchor_dir);
params.is_anchor_first = webwidget_->isSelectionAnchorFirst();
Send(new ViewHostMsg_SelectionBoundsChanged(routing_id_, params));
}
}
UpdateCompositionInfo(false);
}
// Check blink::WebTextInputType and ui::TextInputType is kept in sync.
#define STATIC_ASSERT_WTIT_ENUM_MATCH(a, b) \
static_assert(int(blink::WebTextInputType##a) \
== int(ui::TEXT_INPUT_TYPE_##b), \
"mismatching enums: " #a)
STATIC_ASSERT_WTIT_ENUM_MATCH(None, NONE);
STATIC_ASSERT_WTIT_ENUM_MATCH(Text, TEXT);
STATIC_ASSERT_WTIT_ENUM_MATCH(Password, PASSWORD);
STATIC_ASSERT_WTIT_ENUM_MATCH(Search, SEARCH);
STATIC_ASSERT_WTIT_ENUM_MATCH(Email, EMAIL);
STATIC_ASSERT_WTIT_ENUM_MATCH(Number, NUMBER);
STATIC_ASSERT_WTIT_ENUM_MATCH(Telephone, TELEPHONE);
STATIC_ASSERT_WTIT_ENUM_MATCH(URL, URL);
STATIC_ASSERT_WTIT_ENUM_MATCH(Date, DATE);
STATIC_ASSERT_WTIT_ENUM_MATCH(DateTime, DATE_TIME);
STATIC_ASSERT_WTIT_ENUM_MATCH(DateTimeLocal, DATE_TIME_LOCAL);
STATIC_ASSERT_WTIT_ENUM_MATCH(Month, MONTH);
STATIC_ASSERT_WTIT_ENUM_MATCH(Time, TIME);
STATIC_ASSERT_WTIT_ENUM_MATCH(Week, WEEK);
STATIC_ASSERT_WTIT_ENUM_MATCH(TextArea, TEXT_AREA);
STATIC_ASSERT_WTIT_ENUM_MATCH(ContentEditable, CONTENT_EDITABLE);
STATIC_ASSERT_WTIT_ENUM_MATCH(DateTimeField, DATE_TIME_FIELD);
ui::TextInputType RenderWidget::WebKitToUiTextInputType(
blink::WebTextInputType type) {
// Check the type is in the range representable by ui::TextInputType.
DCHECK_LE(type, static_cast<int>(ui::TEXT_INPUT_TYPE_MAX)) <<
"blink::WebTextInputType and ui::TextInputType not synchronized";
return static_cast<ui::TextInputType>(type);
}
ui::TextInputType RenderWidget::GetTextInputType() {
if (webwidget_)
return WebKitToUiTextInputType(webwidget_->textInputInfo().type);
return ui::TEXT_INPUT_TYPE_NONE;
}
void RenderWidget::UpdateCompositionInfo(bool should_update_range) {
#if defined(OS_ANDROID)
// TODO(yukawa): Start sending character bounds when the browser side
// implementation becomes ready (crbug.com/424866).
#else
TRACE_EVENT0("renderer", "RenderWidget::UpdateCompositionInfo");
gfx::Range range = gfx::Range();
if (should_update_range) {
GetCompositionRange(&range);
} else {
range = composition_range_;
}
std::vector<gfx::Rect> character_bounds;
GetCompositionCharacterBounds(&character_bounds);
if (!ShouldUpdateCompositionInfo(range, character_bounds))
return;
composition_character_bounds_ = character_bounds;
composition_range_ = range;
Send(new InputHostMsg_ImeCompositionRangeChanged(
routing_id(), composition_range_, composition_character_bounds_));
#endif
}
void RenderWidget::GetCompositionCharacterBounds(
std::vector<gfx::Rect>* bounds) {
DCHECK(bounds);
bounds->clear();
}
void RenderWidget::GetCompositionRange(gfx::Range* range) {
size_t location, length;
if (webwidget_->compositionRange(&location, &length)) {
range->set_start(location);
range->set_end(location + length);
} else if (webwidget_->caretOrSelectionRange(&location, &length)) {
range->set_start(location);
range->set_end(location + length);
} else {
*range = gfx::Range::InvalidRange();
}
}
bool RenderWidget::ShouldUpdateCompositionInfo(
const gfx::Range& range,
const std::vector<gfx::Rect>& bounds) {
if (composition_range_ != range)
return true;
if (bounds.size() != composition_character_bounds_.size())
return true;
for (size_t i = 0; i < bounds.size(); ++i) {
if (bounds[i] != composition_character_bounds_[i])
return true;
}
return false;
}
#if defined(OS_ANDROID)
bool RenderWidget::DoesRecordFullLayer() const {
return false;
}
#endif
bool RenderWidget::CanComposeInline() {
return true;
}
WebScreenInfo RenderWidget::screenInfo() {
return screen_info_;
}
float RenderWidget::deviceScaleFactor() {
return device_scale_factor_;
}
void RenderWidget::resetInputMethod() {
ImeEventGuard guard(this);
// If the last text input type is not None, then we should finish any
// ongoing composition regardless of the new text input type.
if (text_input_type_ != ui::TEXT_INPUT_TYPE_NONE) {
// If a composition text exists, then we need to let the browser process
// to cancel the input method's ongoing composition session.
if (webwidget_->confirmComposition())
Send(new InputHostMsg_ImeCancelComposition(routing_id()));
}
UpdateCompositionInfo(true);
}
#if defined(OS_ANDROID)
void RenderWidget::showUnhandledTapUIIfNeeded(
const WebPoint& tapped_position,
const WebNode& tapped_node,
bool page_changed) {
DCHECK(handling_input_event_);
bool should_trigger = !page_changed && tapped_node.isTextNode() &&
!tapped_node.isContentEditable() &&
!tapped_node.isInsideFocusableElementOrARIAWidget();
if (should_trigger) {
Send(new ViewHostMsg_ShowUnhandledTapUIIfNeeded(routing_id_,
tapped_position.x, tapped_position.y));
}
}
#endif
void RenderWidget::didHandleGestureEvent(
const WebGestureEvent& event,
bool event_cancelled) {
#if defined(OS_ANDROID) || defined(USE_AURA)
if (event_cancelled)
return;
if (event.type == WebInputEvent::GestureTap) {
UpdateTextInputState(SHOW_IME_IF_NEEDED, FROM_NON_IME);
} else if (event.type == WebInputEvent::GestureLongPress) {
DCHECK(webwidget_);
if (webwidget_->textInputInfo().value.isEmpty())
UpdateTextInputState(NO_SHOW_IME, FROM_NON_IME);
else
UpdateTextInputState(SHOW_IME_IF_NEEDED, FROM_NON_IME);
}
#endif
}
void RenderWidget::didOverscroll(
const blink::WebFloatSize& unusedDelta,
const blink::WebFloatSize& accumulatedRootOverScroll,
const blink::WebFloatPoint& position,
const blink::WebFloatSize& velocity) {
DidOverscrollParams params;
params.accumulated_overscroll = gfx::Vector2dF(
accumulatedRootOverScroll.width, accumulatedRootOverScroll.height);
params.latest_overscroll_delta =
gfx::Vector2dF(unusedDelta.width, unusedDelta.height);
// TODO(sataya.m): don't negate velocity once http://crbug.com/499743 is
// fixed.
params.current_fling_velocity =
gfx::Vector2dF(-velocity.width, -velocity.height);
params.causal_event_viewport_point = gfx::PointF(position.x, position.y);
// If we're currently handling an event, stash the overscroll data such that
// it can be bundled in the event ack.
if (handling_event_overscroll_) {
handling_event_overscroll_->reset(new DidOverscrollParams(params));
return;
}
Send(new InputHostMsg_DidOverscroll(routing_id_, params));
}
void RenderWidget::StartCompositor() {
// For widgets that are never visible, we don't need the compositor to run
// at all.
if (never_visible_)
return;
// In tests without a RenderThreadImpl, don't set ready as this kicks
// off creating output surfaces that the test can't create.
if (!RenderThreadImpl::current())
return;
compositor_->StartCompositor();
}
void RenderWidget::SchedulePluginMove(const WebPluginGeometry& move) {
size_t i = 0;
for (; i < plugin_window_moves_.size(); ++i) {
if (plugin_window_moves_[i].window == move.window) {
if (move.rects_valid) {
plugin_window_moves_[i] = move;
} else {
plugin_window_moves_[i].visible = move.visible;
}
break;
}
}
if (i == plugin_window_moves_.size())
plugin_window_moves_.push_back(move);
}
void RenderWidget::CleanupWindowInPluginMoves(gfx::PluginWindowHandle window) {
for (WebPluginGeometryVector::iterator i = plugin_window_moves_.begin();
i != plugin_window_moves_.end(); ++i) {
if (i->window == window) {
plugin_window_moves_.erase(i);
break;
}
}
}
RenderWidgetCompositor* RenderWidget::compositor() const {
return compositor_.get();
}
bool RenderWidget::WillHandleMouseEvent(const blink::WebMouseEvent& event) {
return false;
}
bool RenderWidget::WillHandleGestureEvent(
const blink::WebGestureEvent& event) {
return false;
}
void RenderWidget::ObserveWheelEventAndResult(
const blink::WebMouseWheelEvent& wheel_event,
const gfx::Vector2dF& wheel_unused_delta,
bool event_processed) {
if (!compositor_deps_->IsElasticOverscrollEnabled())
return;
cc::InputHandlerScrollResult scroll_result;
scroll_result.did_scroll = event_processed;
scroll_result.did_overscroll_root = !wheel_unused_delta.IsZero();
scroll_result.unused_scroll_delta = wheel_unused_delta;
RenderThreadImpl* render_thread = RenderThreadImpl::current();
InputHandlerManager* input_handler_manager =
render_thread ? render_thread->input_handler_manager() : NULL;
if (input_handler_manager) {
input_handler_manager->ObserveWheelEventAndResultOnMainThread(
routing_id_, wheel_event, scroll_result);
}
}
void RenderWidget::hasTouchEventHandlers(bool has_handlers) {
Send(new ViewHostMsg_HasTouchEventHandlers(routing_id_, has_handlers));
}
// Check blink::WebTouchAction and blink::WebTouchActionAuto is kept in sync
#define STATIC_ASSERT_WTI_ENUM_MATCH(a, b) \
static_assert(int(blink::WebTouchAction##a) == int(TOUCH_ACTION_##b), \
"mismatching enums: " #a)
inline content::TouchAction& operator|=(content::TouchAction& a,
content::TouchAction b) {
a = static_cast<content::TouchAction>(static_cast<int>(a) |
static_cast<int>(b));
return a;
}
void RenderWidget::setTouchAction(
blink::WebTouchAction web_touch_action) {
// Ignore setTouchAction calls that result from synthetic touch events (eg.
// when blink is emulating touch with mouse).
if (handling_event_type_ != WebInputEvent::TouchStart)
return;
// Verify the same values are used by the types so we can cast between them.
STATIC_ASSERT_WTI_ENUM_MATCH(Auto, AUTO);
STATIC_ASSERT_WTI_ENUM_MATCH(None, NONE);
STATIC_ASSERT_WTI_ENUM_MATCH(PanLeft, PAN_LEFT);
STATIC_ASSERT_WTI_ENUM_MATCH(PanRight, PAN_RIGHT);
STATIC_ASSERT_WTI_ENUM_MATCH(PanX, PAN_X);
STATIC_ASSERT_WTI_ENUM_MATCH(PanUp, PAN_UP);
STATIC_ASSERT_WTI_ENUM_MATCH(PanDown, PAN_DOWN);
STATIC_ASSERT_WTI_ENUM_MATCH(PanY, PAN_Y);
STATIC_ASSERT_WTI_ENUM_MATCH(PinchZoom, PINCH_ZOOM);
content::TouchAction content_touch_action =
static_cast<content::TouchAction>(web_touch_action);
Send(new InputHostMsg_SetTouchAction(routing_id_, content_touch_action));
}
void RenderWidget::didUpdateTextOfFocusedElementByNonUserInput() {
#if defined(OS_ANDROID)
text_field_is_dirty_ = true;
#endif
}
bool RenderWidget::HasTouchEventHandlersAt(const gfx::Point& point) const {
return true;
}
scoped_ptr<WebGraphicsContext3DCommandBufferImpl>
RenderWidget::CreateGraphicsContext3D(bool compositor) {
if (!webwidget_)
return scoped_ptr<WebGraphicsContext3DCommandBufferImpl>();
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDisableGpuCompositing))
return scoped_ptr<WebGraphicsContext3DCommandBufferImpl>();
if (!RenderThreadImpl::current())
return scoped_ptr<WebGraphicsContext3DCommandBufferImpl>();
CauseForGpuLaunch cause =
CAUSE_FOR_GPU_LAUNCH_WEBGRAPHICSCONTEXT3DCOMMANDBUFFERIMPL_INITIALIZE;
scoped_refptr<GpuChannelHost> gpu_channel_host(
RenderThreadImpl::current()->EstablishGpuChannelSync(cause));
if (!gpu_channel_host.get())
return scoped_ptr<WebGraphicsContext3DCommandBufferImpl>();
// Explicitly disable antialiasing for the compositor. As of the time of
// this writing, the only platform that supported antialiasing for the
// compositor was Mac OS X, because the on-screen OpenGL context creation
// code paths on Windows and Linux didn't yet have multisampling support.
// Mac OS X essentially always behaves as though it's rendering offscreen.
// Multisampling has a heavy cost especially on devices with relatively low
// fill rate like most notebooks, and the Mac implementation would need to
// be optimized to resolve directly into the IOSurface shared between the
// GPU and browser processes. For these reasons and to avoid platform
// disparities we explicitly disable antialiasing.
blink::WebGraphicsContext3D::Attributes attributes;
attributes.antialias = false;
attributes.shareResources = true;
attributes.noAutomaticFlushes = true;
attributes.depth = false;
attributes.stencil = false;
bool lose_context_when_out_of_memory = true;
WebGraphicsContext3DCommandBufferImpl::SharedMemoryLimits limits;
#if defined(OS_ANDROID)
// If we raster too fast we become upload bound, and pending
// uploads consume memory. For maximum upload throughput, we would
// want to allow for upload_throughput * pipeline_time of pending
// uploads, after which we are just wasting memory. Since we don't
// know our upload throughput yet, this just caps our memory usage.
size_t divider = 1;
if (base::SysInfo::IsLowEndDevice())
divider = 6;
// For reference Nexus10 can upload 1MB in about 2.5ms.
const double max_mb_uploaded_per_ms = 2.0 / (5 * divider);
// Deadline to draw a frame to achieve 60 frames per second.
const size_t kMillisecondsPerFrame = 16;
// Assuming a two frame deep pipeline between the CPU and the GPU.
size_t max_transfer_buffer_usage_mb =
static_cast<size_t>(2 * kMillisecondsPerFrame * max_mb_uploaded_per_ms);
static const size_t kBytesPerMegabyte = 1024 * 1024;
// We keep the MappedMemoryReclaimLimit the same as the upload limit
// to avoid unnecessarily stalling the compositor thread.
limits.mapped_memory_reclaim_limit =
max_transfer_buffer_usage_mb * kBytesPerMegabyte;
#endif
if (compositor) {
limits.command_buffer_size = 64 * 1024;
limits.start_transfer_buffer_size = 64 * 1024;
limits.min_transfer_buffer_size = 64 * 1024;
}
scoped_ptr<WebGraphicsContext3DCommandBufferImpl> context(
new WebGraphicsContext3DCommandBufferImpl(surface_id(),
GetURLForGraphicsContext3D(),
gpu_channel_host.get(),
attributes,
lose_context_when_out_of_memory,
limits,
NULL));
return context.Pass();
}
void RenderWidget::RegisterRenderFrameProxy(RenderFrameProxy* proxy) {
render_frame_proxies_.AddObserver(proxy);
}
void RenderWidget::UnregisterRenderFrameProxy(RenderFrameProxy* proxy) {
render_frame_proxies_.RemoveObserver(proxy);
}
void RenderWidget::RegisterRenderFrame(RenderFrameImpl* frame) {
render_frames_.AddObserver(frame);
}
void RenderWidget::UnregisterRenderFrame(RenderFrameImpl* frame) {
render_frames_.RemoveObserver(frame);
}
#if defined(VIDEO_HOLE)
void RenderWidget::RegisterVideoHoleFrame(RenderFrameImpl* frame) {
video_hole_frames_.AddObserver(frame);
}
void RenderWidget::UnregisterVideoHoleFrame(RenderFrameImpl* frame) {
video_hole_frames_.RemoveObserver(frame);
}
#endif // defined(VIDEO_HOLE)
} // namespace content