blob: 76fcc872f5d4c74c24c95127af432abfef19293d [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/browser/renderer_host/render_widget_host_impl.h"
#include <math.h>
#include <set>
#include <utility>
#include "base/auto_reset.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "base/containers/hash_tables.h"
#include "base/debug/trace_event.h"
#include "base/i18n/rtl.h"
#include "base/lazy_instance.h"
#include "base/message_loop/message_loop.h"
#include "base/metrics/field_trial.h"
#include "base/metrics/histogram.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "base/thread_task_runner_handle.h"
#include "cc/base/switches.h"
#include "cc/output/compositor_frame.h"
#include "cc/output/compositor_frame_ack.h"
#include "content/browser/accessibility/accessibility_mode_helper.h"
#include "content/browser/accessibility/browser_accessibility_state_impl.h"
#include "content/browser/browser_plugin/browser_plugin_guest.h"
#include "content/browser/gpu/compositor_util.h"
#include "content/browser/gpu/gpu_process_host.h"
#include "content/browser/gpu/gpu_process_host_ui_shim.h"
#include "content/browser/gpu/gpu_surface_tracker.h"
#include "content/browser/renderer_host/dip_util.h"
#include "content/browser/renderer_host/input/input_router_config_helper.h"
#include "content/browser/renderer_host/input/input_router_impl.h"
#include "content/browser/renderer_host/input/synthetic_gesture.h"
#include "content/browser/renderer_host/input/synthetic_gesture_controller.h"
#include "content/browser/renderer_host/input/synthetic_gesture_target.h"
#include "content/browser/renderer_host/input/timeout_monitor.h"
#include "content/browser/renderer_host/input/touch_emulator.h"
#include "content/browser/renderer_host/render_process_host_impl.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/browser/renderer_host/render_widget_helper.h"
#include "content/browser/renderer_host/render_widget_host_delegate.h"
#include "content/browser/renderer_host/render_widget_host_view_base.h"
#include "content/browser/renderer_host/render_widget_resize_helper.h"
#include "content/common/content_constants_internal.h"
#include "content/common/cursors/webcursor.h"
#include "content/common/gpu/gpu_messages.h"
#include "content/common/host_shared_bitmap_manager.h"
#include "content/common/input_messages.h"
#include "content/common/view_messages.h"
#include "content/public/browser/native_web_keyboard_event.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/render_widget_host_iterator.h"
#include "content/public/browser/user_metrics.h"
#include "content/public/common/content_constants.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/result_codes.h"
#include "content/public/common/web_preferences.h"
#include "skia/ext/image_operations.h"
#include "skia/ext/platform_canvas.h"
#include "third_party/WebKit/public/web/WebCompositionUnderline.h"
#include "ui/events/event.h"
#include "ui/events/keycodes/keyboard_codes.h"
#include "ui/gfx/size_conversions.h"
#include "ui/gfx/skbitmap_operations.h"
#include "ui/gfx/vector2d_conversions.h"
#include "ui/snapshot/snapshot.h"
#if defined(OS_WIN)
#include "content/common/plugin_constants_win.h"
#endif
using base::Time;
using base::TimeDelta;
using base::TimeTicks;
using blink::WebGestureEvent;
using blink::WebInputEvent;
using blink::WebKeyboardEvent;
using blink::WebMouseEvent;
using blink::WebMouseWheelEvent;
using blink::WebTextDirection;
namespace content {
namespace {
bool g_check_for_pending_resize_ack = true;
typedef std::pair<int32, int32> RenderWidgetHostID;
typedef base::hash_map<RenderWidgetHostID, RenderWidgetHostImpl*>
RoutingIDWidgetMap;
base::LazyInstance<RoutingIDWidgetMap> g_routing_id_widget_map =
LAZY_INSTANCE_INITIALIZER;
int GetInputRouterViewFlagsFromCompositorFrameMetadata(
const cc::CompositorFrameMetadata metadata) {
int view_flags = InputRouter::VIEW_FLAGS_NONE;
if (metadata.min_page_scale_factor == metadata.max_page_scale_factor)
view_flags |= InputRouter::FIXED_PAGE_SCALE;
const float window_width_dip = std::ceil(
metadata.page_scale_factor * metadata.scrollable_viewport_size.width());
const float content_width_css = metadata.root_layer_size.width();
if (content_width_css <= window_width_dip)
view_flags |= InputRouter::MOBILE_VIEWPORT;
return view_flags;
}
// Implements the RenderWidgetHostIterator interface. It keeps a list of
// RenderWidgetHosts, and makes sure it returns a live RenderWidgetHost at each
// iteration (or NULL if there isn't any left).
class RenderWidgetHostIteratorImpl : public RenderWidgetHostIterator {
public:
RenderWidgetHostIteratorImpl()
: current_index_(0) {
}
virtual ~RenderWidgetHostIteratorImpl() {
}
void Add(RenderWidgetHost* host) {
hosts_.push_back(RenderWidgetHostID(host->GetProcess()->GetID(),
host->GetRoutingID()));
}
// RenderWidgetHostIterator:
virtual RenderWidgetHost* GetNextHost() OVERRIDE {
RenderWidgetHost* host = NULL;
while (current_index_ < hosts_.size() && !host) {
RenderWidgetHostID id = hosts_[current_index_];
host = RenderWidgetHost::FromID(id.first, id.second);
++current_index_;
}
return host;
}
private:
std::vector<RenderWidgetHostID> hosts_;
size_t current_index_;
DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostIteratorImpl);
};
} // namespace
///////////////////////////////////////////////////////////////////////////////
// RenderWidgetHostImpl
RenderWidgetHostImpl::RenderWidgetHostImpl(RenderWidgetHostDelegate* delegate,
RenderProcessHost* process,
int routing_id,
bool hidden)
: view_(NULL),
renderer_initialized_(false),
hung_renderer_delay_ms_(kHungRendererDelayMs),
delegate_(delegate),
process_(process),
routing_id_(routing_id),
surface_id_(0),
is_loading_(false),
is_hidden_(hidden),
is_fullscreen_(false),
repaint_ack_pending_(false),
resize_ack_pending_(false),
screen_info_out_of_date_(false),
overdraw_bottom_height_(0.f),
should_auto_resize_(false),
waiting_for_screen_rects_ack_(false),
needs_repainting_on_restore_(false),
is_unresponsive_(false),
in_flight_event_count_(0),
in_get_backing_store_(false),
ignore_input_events_(false),
input_method_active_(false),
text_direction_updated_(false),
text_direction_(blink::WebTextDirectionLeftToRight),
text_direction_canceled_(false),
suppress_next_char_events_(false),
pending_mouse_lock_request_(false),
allow_privileged_mouse_lock_(false),
has_touch_handler_(false),
weak_factory_(this),
last_input_number_(static_cast<int64>(GetProcess()->GetID()) << 32),
next_browser_snapshot_id_(1) {
CHECK(delegate_);
if (routing_id_ == MSG_ROUTING_NONE) {
routing_id_ = process_->GetNextRoutingID();
surface_id_ = GpuSurfaceTracker::Get()->AddSurfaceForRenderer(
process_->GetID(),
routing_id_);
} else {
// TODO(piman): This is a O(N) lookup, where we could forward the
// information from the RenderWidgetHelper. The problem is that doing so
// currently leaks outside of content all the way to chrome classes, and
// would be a layering violation. Since we don't expect more than a few
// hundreds of RWH, this seems acceptable. Revisit if performance become a
// problem, for example by tracking in the RenderWidgetHelper the routing id
// (and surface id) that have been created, but whose RWH haven't yet.
surface_id_ = GpuSurfaceTracker::Get()->LookupSurfaceForRenderer(
process_->GetID(),
routing_id_);
DCHECK(surface_id_);
}
std::pair<RoutingIDWidgetMap::iterator, bool> result =
g_routing_id_widget_map.Get().insert(std::make_pair(
RenderWidgetHostID(process->GetID(), routing_id_), this));
CHECK(result.second) << "Inserting a duplicate item!";
process_->AddRoute(routing_id_, this);
// If we're initially visible, tell the process host that we're alive.
// Otherwise we'll notify the process host when we are first shown.
if (!hidden)
process_->WidgetRestored();
input_router_.reset(new InputRouterImpl(
process_, this, this, routing_id_, GetInputRouterConfigForPlatform()));
touch_emulator_.reset();
RenderViewHostImpl* rvh = static_cast<RenderViewHostImpl*>(
IsRenderView() ? RenderViewHost::From(this) : NULL);
if (BrowserPluginGuest::IsGuest(rvh) ||
!base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDisableHangMonitor)) {
hang_monitor_timeout_.reset(new TimeoutMonitor(
base::Bind(&RenderWidgetHostImpl::RendererIsUnresponsive,
weak_factory_.GetWeakPtr())));
}
}
RenderWidgetHostImpl::~RenderWidgetHostImpl() {
SetView(NULL);
GpuSurfaceTracker::Get()->RemoveSurface(surface_id_);
surface_id_ = 0;
process_->RemoveRoute(routing_id_);
g_routing_id_widget_map.Get().erase(
RenderWidgetHostID(process_->GetID(), routing_id_));
if (delegate_)
delegate_->RenderWidgetDeleted(this);
}
// static
RenderWidgetHost* RenderWidgetHost::FromID(
int32 process_id,
int32 routing_id) {
return RenderWidgetHostImpl::FromID(process_id, routing_id);
}
// static
RenderWidgetHostImpl* RenderWidgetHostImpl::FromID(
int32 process_id,
int32 routing_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
RoutingIDWidgetMap* widgets = g_routing_id_widget_map.Pointer();
RoutingIDWidgetMap::iterator it = widgets->find(
RenderWidgetHostID(process_id, routing_id));
return it == widgets->end() ? NULL : it->second;
}
// static
scoped_ptr<RenderWidgetHostIterator> RenderWidgetHost::GetRenderWidgetHosts() {
RenderWidgetHostIteratorImpl* hosts = new RenderWidgetHostIteratorImpl();
RoutingIDWidgetMap* widgets = g_routing_id_widget_map.Pointer();
for (RoutingIDWidgetMap::const_iterator it = widgets->begin();
it != widgets->end();
++it) {
RenderWidgetHost* widget = it->second;
if (!widget->IsRenderView()) {
hosts->Add(widget);
continue;
}
// Add only active RenderViewHosts.
RenderViewHost* rvh = RenderViewHost::From(widget);
if (RenderViewHostImpl::IsRVHStateActive(
static_cast<RenderViewHostImpl*>(rvh)->rvh_state()))
hosts->Add(widget);
}
return scoped_ptr<RenderWidgetHostIterator>(hosts);
}
// static
scoped_ptr<RenderWidgetHostIterator>
RenderWidgetHostImpl::GetAllRenderWidgetHosts() {
RenderWidgetHostIteratorImpl* hosts = new RenderWidgetHostIteratorImpl();
RoutingIDWidgetMap* widgets = g_routing_id_widget_map.Pointer();
for (RoutingIDWidgetMap::const_iterator it = widgets->begin();
it != widgets->end();
++it) {
hosts->Add(it->second);
}
return scoped_ptr<RenderWidgetHostIterator>(hosts);
}
// static
RenderWidgetHostImpl* RenderWidgetHostImpl::From(RenderWidgetHost* rwh) {
return rwh->AsRenderWidgetHostImpl();
}
void RenderWidgetHostImpl::SetView(RenderWidgetHostViewBase* view) {
view_ = view;
GpuSurfaceTracker::Get()->SetSurfaceHandle(
surface_id_, GetCompositingSurface());
synthetic_gesture_controller_.reset();
}
RenderProcessHost* RenderWidgetHostImpl::GetProcess() const {
return process_;
}
int RenderWidgetHostImpl::GetRoutingID() const {
return routing_id_;
}
RenderWidgetHostView* RenderWidgetHostImpl::GetView() const {
return view_;
}
RenderWidgetHostImpl* RenderWidgetHostImpl::AsRenderWidgetHostImpl() {
return this;
}
gfx::NativeViewId RenderWidgetHostImpl::GetNativeViewId() const {
if (view_)
return view_->GetNativeViewId();
return 0;
}
gfx::GLSurfaceHandle RenderWidgetHostImpl::GetCompositingSurface() {
if (view_)
return view_->GetCompositingSurface();
return gfx::GLSurfaceHandle();
}
void RenderWidgetHostImpl::ResetSizeAndRepaintPendingFlags() {
resize_ack_pending_ = false;
if (repaint_ack_pending_) {
TRACE_EVENT_ASYNC_END0(
"renderer_host", "RenderWidgetHostImpl::repaint_ack_pending_", this);
}
repaint_ack_pending_ = false;
last_requested_size_.SetSize(0, 0);
}
void RenderWidgetHostImpl::SendScreenRects() {
if (!renderer_initialized_ || waiting_for_screen_rects_ack_)
return;
if (is_hidden_) {
// On GTK, this comes in for backgrounded tabs. Ignore, to match what
// happens on Win & Mac, and when the view is shown it'll call this again.
return;
}
if (!view_)
return;
last_view_screen_rect_ = view_->GetViewBounds();
last_window_screen_rect_ = view_->GetBoundsInRootWindow();
Send(new ViewMsg_UpdateScreenRects(
GetRoutingID(), last_view_screen_rect_, last_window_screen_rect_));
if (delegate_)
delegate_->DidSendScreenRects(this);
waiting_for_screen_rects_ack_ = true;
}
void RenderWidgetHostImpl::SuppressNextCharEvents() {
suppress_next_char_events_ = true;
}
void RenderWidgetHostImpl::FlushInput() {
input_router_->Flush();
if (synthetic_gesture_controller_)
synthetic_gesture_controller_->Flush(base::TimeTicks::Now());
}
void RenderWidgetHostImpl::SetNeedsFlush() {
if (view_)
view_->OnSetNeedsFlushInput();
}
void RenderWidgetHostImpl::Init() {
DCHECK(process_->HasConnection());
renderer_initialized_ = true;
GpuSurfaceTracker::Get()->SetSurfaceHandle(
surface_id_, GetCompositingSurface());
// Send the ack along with the information on placement.
Send(new ViewMsg_CreatingNew_ACK(routing_id_));
GetProcess()->ResumeRequestsForView(routing_id_);
WasResized();
}
void RenderWidgetHostImpl::Shutdown() {
RejectMouseLockOrUnlockIfNecessary();
if (process_->HasConnection()) {
// Tell the renderer object to close.
bool rv = Send(new ViewMsg_Close(routing_id_));
DCHECK(rv);
}
Destroy();
}
bool RenderWidgetHostImpl::IsLoading() const {
return is_loading_;
}
bool RenderWidgetHostImpl::IsRenderView() const {
return false;
}
bool RenderWidgetHostImpl::OnMessageReceived(const IPC::Message &msg) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(RenderWidgetHostImpl, msg)
IPC_MESSAGE_HANDLER(InputHostMsg_QueueSyntheticGesture,
OnQueueSyntheticGesture)
IPC_MESSAGE_HANDLER(InputHostMsg_ImeCancelComposition,
OnImeCancelComposition)
IPC_MESSAGE_HANDLER(ViewHostMsg_RenderViewReady, OnRenderViewReady)
IPC_MESSAGE_HANDLER(ViewHostMsg_RenderProcessGone, OnRenderProcessGone)
IPC_MESSAGE_HANDLER(ViewHostMsg_Close, OnClose)
IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateScreenRects_ACK,
OnUpdateScreenRectsAck)
IPC_MESSAGE_HANDLER(ViewHostMsg_RequestMove, OnRequestMove)
IPC_MESSAGE_HANDLER(ViewHostMsg_SetTooltipText, OnSetTooltipText)
IPC_MESSAGE_HANDLER_GENERIC(ViewHostMsg_SwapCompositorFrame,
OnSwapCompositorFrame(msg))
IPC_MESSAGE_HANDLER(ViewHostMsg_DidStopFlinging, OnFlingingStopped)
IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateRect, OnUpdateRect)
IPC_MESSAGE_HANDLER(ViewHostMsg_Focus, OnFocus)
IPC_MESSAGE_HANDLER(ViewHostMsg_Blur, OnBlur)
IPC_MESSAGE_HANDLER(ViewHostMsg_SetCursor, OnSetCursor)
IPC_MESSAGE_HANDLER(ViewHostMsg_SetTouchEventEmulationEnabled,
OnSetTouchEventEmulationEnabled)
IPC_MESSAGE_HANDLER(ViewHostMsg_TextInputStateChanged,
OnTextInputStateChanged)
IPC_MESSAGE_HANDLER(ViewHostMsg_LockMouse, OnLockMouse)
IPC_MESSAGE_HANDLER(ViewHostMsg_UnlockMouse, OnUnlockMouse)
IPC_MESSAGE_HANDLER(ViewHostMsg_ShowDisambiguationPopup,
OnShowDisambiguationPopup)
IPC_MESSAGE_HANDLER(ViewHostMsg_SelectionChanged, OnSelectionChanged)
IPC_MESSAGE_HANDLER(ViewHostMsg_SelectionBoundsChanged,
OnSelectionBoundsChanged)
#if defined(OS_WIN)
IPC_MESSAGE_HANDLER(ViewHostMsg_WindowlessPluginDummyWindowCreated,
OnWindowlessPluginDummyWindowCreated)
IPC_MESSAGE_HANDLER(ViewHostMsg_WindowlessPluginDummyWindowDestroyed,
OnWindowlessPluginDummyWindowDestroyed)
#endif
#if defined(OS_MACOSX) || defined(USE_AURA)
IPC_MESSAGE_HANDLER(InputHostMsg_ImeCompositionRangeChanged,
OnImeCompositionRangeChanged)
#endif
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
if (!handled && input_router_ && input_router_->OnMessageReceived(msg))
return true;
if (!handled && view_ && view_->OnMessageReceived(msg))
return true;
return handled;
}
bool RenderWidgetHostImpl::Send(IPC::Message* msg) {
if (IPC_MESSAGE_ID_CLASS(msg->type()) == InputMsgStart)
return input_router_->SendInput(make_scoped_ptr(msg));
return process_->Send(msg);
}
void RenderWidgetHostImpl::WasHidden() {
if (is_hidden_)
return;
is_hidden_ = true;
// Don't bother reporting hung state when we aren't active.
StopHangMonitorTimeout();
// If we have a renderer, then inform it that we are being hidden so it can
// reduce its resource utilization.
Send(new ViewMsg_WasHidden(routing_id_));
// Tell the RenderProcessHost we were hidden.
process_->WidgetHidden();
bool is_visible = false;
NotificationService::current()->Notify(
NOTIFICATION_RENDER_WIDGET_VISIBILITY_CHANGED,
Source<RenderWidgetHost>(this),
Details<bool>(&is_visible));
}
void RenderWidgetHostImpl::WasShown(const ui::LatencyInfo& latency_info) {
if (!is_hidden_)
return;
is_hidden_ = false;
SendScreenRects();
// Always repaint on restore.
bool needs_repainting = true;
needs_repainting_on_restore_ = false;
Send(new ViewMsg_WasShown(routing_id_, needs_repainting, latency_info));
process_->WidgetRestored();
bool is_visible = true;
NotificationService::current()->Notify(
NOTIFICATION_RENDER_WIDGET_VISIBILITY_CHANGED,
Source<RenderWidgetHost>(this),
Details<bool>(&is_visible));
// It's possible for our size to be out of sync with the renderer. The
// following is one case that leads to this:
// 1. WasResized -> Send ViewMsg_Resize to render
// 2. WasResized -> do nothing as resize_ack_pending_ is true
// 3. WasHidden
// 4. OnUpdateRect from (1) processed. Does NOT invoke WasResized as view
// is hidden. Now renderer/browser out of sync with what they think size
// is.
// By invoking WasResized the renderer is updated as necessary. WasResized
// does nothing if the sizes are already in sync.
//
// TODO: ideally ViewMsg_WasShown would take a size. This way, the renderer
// could handle both the restore and resize at once. This isn't that big a
// deal as RenderWidget::WasShown delays updating, so that the resize from
// WasResized is usually processed before the renderer is painted.
WasResized();
}
void RenderWidgetHostImpl::WasResized() {
// Skip if the |delegate_| has already been detached because
// it's web contents is being deleted.
if (resize_ack_pending_ || !process_->HasConnection() || !view_ ||
!renderer_initialized_ || should_auto_resize_ || !delegate_) {
return;
}
gfx::Size new_size(view_->GetRequestedRendererSize());
gfx::Size old_physical_backing_size = physical_backing_size_;
physical_backing_size_ = view_->GetPhysicalBackingSize();
bool was_fullscreen = is_fullscreen_;
is_fullscreen_ = IsFullscreen();
float old_overdraw_bottom_height = overdraw_bottom_height_;
overdraw_bottom_height_ = view_->GetOverdrawBottomHeight();
gfx::Size old_visible_viewport_size = visible_viewport_size_;
visible_viewport_size_ = view_->GetVisibleViewportSize();
bool size_changed = new_size != last_requested_size_;
bool side_payload_changed =
screen_info_out_of_date_ ||
old_physical_backing_size != physical_backing_size_ ||
was_fullscreen != is_fullscreen_ ||
old_overdraw_bottom_height != overdraw_bottom_height_ ||
old_visible_viewport_size != visible_viewport_size_;
if (!size_changed && !side_payload_changed)
return;
if (!screen_info_) {
screen_info_.reset(new blink::WebScreenInfo);
GetWebScreenInfo(screen_info_.get());
}
// We don't expect to receive an ACK when the requested size or the physical
// backing size is empty, or when the main viewport size didn't change.
if (!new_size.IsEmpty() && !physical_backing_size_.IsEmpty() && size_changed)
resize_ack_pending_ = g_check_for_pending_resize_ack;
ViewMsg_Resize_Params params;
params.screen_info = *screen_info_;
params.new_size = new_size;
params.physical_backing_size = physical_backing_size_;
params.overdraw_bottom_height = overdraw_bottom_height_;
params.visible_viewport_size = visible_viewport_size_;
params.resizer_rect = GetRootWindowResizerRect();
params.is_fullscreen = is_fullscreen_;
if (!Send(new ViewMsg_Resize(routing_id_, params))) {
resize_ack_pending_ = false;
} else {
last_requested_size_ = new_size;
}
}
void RenderWidgetHostImpl::ResizeRectChanged(const gfx::Rect& new_rect) {
Send(new ViewMsg_ChangeResizeRect(routing_id_, new_rect));
}
void RenderWidgetHostImpl::GotFocus() {
Focus();
}
void RenderWidgetHostImpl::Focus() {
Send(new InputMsg_SetFocus(routing_id_, true));
}
void RenderWidgetHostImpl::Blur() {
// If there is a pending mouse lock request, we don't want to reject it at
// this point. The user can switch focus back to this view and approve the
// request later.
if (IsMouseLocked())
view_->UnlockMouse();
if (touch_emulator_)
touch_emulator_->CancelTouch();
Send(new InputMsg_SetFocus(routing_id_, false));
}
void RenderWidgetHostImpl::LostCapture() {
if (touch_emulator_)
touch_emulator_->CancelTouch();
Send(new InputMsg_MouseCaptureLost(routing_id_));
}
void RenderWidgetHostImpl::SetActive(bool active) {
Send(new ViewMsg_SetActive(routing_id_, active));
}
void RenderWidgetHostImpl::LostMouseLock() {
Send(new ViewMsg_MouseLockLost(routing_id_));
}
void RenderWidgetHostImpl::ViewDestroyed() {
RejectMouseLockOrUnlockIfNecessary();
// TODO(evanm): tracking this may no longer be necessary;
// eliminate this function if so.
SetView(NULL);
}
void RenderWidgetHostImpl::SetIsLoading(bool is_loading) {
is_loading_ = is_loading;
if (!view_)
return;
view_->SetIsLoading(is_loading);
}
void RenderWidgetHostImpl::CopyFromBackingStore(
const gfx::Rect& src_subrect,
const gfx::Size& accelerated_dst_size,
const base::Callback<void(bool, const SkBitmap&)>& callback,
const SkColorType color_type) {
if (view_) {
TRACE_EVENT0("browser",
"RenderWidgetHostImpl::CopyFromBackingStore::FromCompositingSurface");
gfx::Rect accelerated_copy_rect = src_subrect.IsEmpty() ?
gfx::Rect(view_->GetViewBounds().size()) : src_subrect;
view_->CopyFromCompositingSurface(
accelerated_copy_rect, accelerated_dst_size, callback, color_type);
return;
}
callback.Run(false, SkBitmap());
}
bool RenderWidgetHostImpl::CanCopyFromBackingStore() {
if (view_)
return view_->IsSurfaceAvailableForCopy();
return false;
}
#if defined(OS_ANDROID)
void RenderWidgetHostImpl::LockBackingStore() {
if (view_)
view_->LockCompositingSurface();
}
void RenderWidgetHostImpl::UnlockBackingStore() {
if (view_)
view_->UnlockCompositingSurface();
}
#endif
#if defined(OS_MACOSX)
void RenderWidgetHostImpl::PauseForPendingResizeOrRepaints() {
TRACE_EVENT0("browser",
"RenderWidgetHostImpl::PauseForPendingResizeOrRepaints");
if (!CanPauseForPendingResizeOrRepaints())
return;
WaitForSurface();
}
bool RenderWidgetHostImpl::CanPauseForPendingResizeOrRepaints() {
// Do not pause if the view is hidden.
if (is_hidden())
return false;
// Do not pause if there is not a paint or resize already coming.
if (!repaint_ack_pending_ && !resize_ack_pending_)
return false;
return true;
}
void RenderWidgetHostImpl::WaitForSurface() {
TRACE_EVENT0("browser", "RenderWidgetHostImpl::WaitForSurface");
// How long to (synchronously) wait for the renderer to respond with a
// new frame when our current frame doesn't exist or is the wrong size.
// This timeout impacts the "choppiness" of our window resize.
const int kPaintMsgTimeoutMS = 50;
if (!view_)
return;
// The view_size will be current_size_ for auto-sized views and otherwise the
// size of the view_. (For auto-sized views, current_size_ is updated during
// UpdateRect messages.)
gfx::Size view_size = current_size_;
if (!should_auto_resize_) {
// Get the desired size from the current view bounds.
gfx::Rect view_rect = view_->GetViewBounds();
if (view_rect.IsEmpty())
return;
view_size = view_rect.size();
}
TRACE_EVENT2("renderer_host",
"RenderWidgetHostImpl::WaitForBackingStore",
"width",
base::IntToString(view_size.width()),
"height",
base::IntToString(view_size.height()));
// We should not be asked to paint while we are hidden. If we are hidden,
// then it means that our consumer failed to call WasShown. If we're not
// force creating the backing store, it's OK since we can feel free to give
// out our cached one if we have it.
DCHECK(!is_hidden_) << "WaitForSurface called while hidden!";
// We should never be called recursively; this can theoretically lead to
// infinite recursion and almost certainly leads to lower performance.
DCHECK(!in_get_backing_store_) << "WaitForSurface called recursively!";
base::AutoReset<bool> auto_reset_in_get_backing_store(
&in_get_backing_store_, true);
// We might have a surface that we can use!
if (view_->HasAcceleratedSurface(view_size))
return;
// We do not have a suitable backing store in the cache, so send out a
// request to the renderer to paint the view if required.
if (!repaint_ack_pending_ && !resize_ack_pending_) {
repaint_start_time_ = TimeTicks::Now();
repaint_ack_pending_ = true;
TRACE_EVENT_ASYNC_BEGIN0(
"renderer_host", "RenderWidgetHostImpl::repaint_ack_pending_", this);
Send(new ViewMsg_Repaint(routing_id_, view_size));
}
TimeDelta max_delay = TimeDelta::FromMilliseconds(kPaintMsgTimeoutMS);
TimeTicks end_time = TimeTicks::Now() + max_delay;
do {
TRACE_EVENT0("renderer_host", "WaitForSurface::WaitForUpdate");
// When we have asked the RenderWidget to resize, and we are still waiting
// on a response, block for a little while to see if we can't get a response
// before returning the old (incorrectly sized) backing store.
IPC::Message msg;
if (RenderWidgetResizeHelper::Get()->WaitForSingleTaskToRun(max_delay)) {
// For auto-resized views, current_size_ determines the view_size and it
// may have changed during the handling of an UpdateRect message.
if (should_auto_resize_)
view_size = current_size_;
// Break now if we got a backing store or accelerated surface of the
// correct size.
if (view_->HasAcceleratedSurface(view_size))
return;
} else {
TRACE_EVENT0("renderer_host", "WaitForSurface::Timeout");
break;
}
// Loop if we still have time left and haven't gotten a properly sized
// BackingStore yet. This is necessary to support the GPU path which
// typically has multiple frames pipelined -- we may need to skip one or two
// BackingStore messages to get to the latest.
max_delay = end_time - TimeTicks::Now();
} while (max_delay > TimeDelta::FromSeconds(0));
}
#endif
bool RenderWidgetHostImpl::ScheduleComposite() {
if (is_hidden_ || current_size_.IsEmpty() || repaint_ack_pending_ ||
resize_ack_pending_) {
return false;
}
// Send out a request to the renderer to paint the view if required.
repaint_start_time_ = TimeTicks::Now();
repaint_ack_pending_ = true;
TRACE_EVENT_ASYNC_BEGIN0(
"renderer_host", "RenderWidgetHostImpl::repaint_ack_pending_", this);
Send(new ViewMsg_Repaint(routing_id_, current_size_));
return true;
}
void RenderWidgetHostImpl::StartHangMonitorTimeout(base::TimeDelta delay) {
if (hang_monitor_timeout_)
hang_monitor_timeout_->Start(delay);
}
void RenderWidgetHostImpl::RestartHangMonitorTimeout() {
if (hang_monitor_timeout_)
hang_monitor_timeout_->Restart(
base::TimeDelta::FromMilliseconds(hung_renderer_delay_ms_));
}
void RenderWidgetHostImpl::StopHangMonitorTimeout() {
if (hang_monitor_timeout_)
hang_monitor_timeout_->Stop();
RendererIsResponsive();
}
void RenderWidgetHostImpl::ForwardMouseEvent(const WebMouseEvent& mouse_event) {
ForwardMouseEventWithLatencyInfo(mouse_event, ui::LatencyInfo());
}
void RenderWidgetHostImpl::ForwardMouseEventWithLatencyInfo(
const blink::WebMouseEvent& mouse_event,
const ui::LatencyInfo& ui_latency) {
TRACE_EVENT2("input", "RenderWidgetHostImpl::ForwardMouseEvent",
"x", mouse_event.x, "y", mouse_event.y);
ui::LatencyInfo latency_info =
CreateRWHLatencyInfoIfNotExist(&ui_latency, mouse_event.type);
for (size_t i = 0; i < mouse_event_callbacks_.size(); ++i) {
if (mouse_event_callbacks_[i].Run(mouse_event))
return;
}
if (IgnoreInputEvents())
return;
if (touch_emulator_ && touch_emulator_->HandleMouseEvent(mouse_event))
return;
input_router_->SendMouseEvent(MouseEventWithLatencyInfo(mouse_event,
latency_info));
}
void RenderWidgetHostImpl::OnPointerEventActivate() {
}
void RenderWidgetHostImpl::ForwardWheelEvent(
const WebMouseWheelEvent& wheel_event) {
ForwardWheelEventWithLatencyInfo(wheel_event, ui::LatencyInfo());
}
void RenderWidgetHostImpl::ForwardWheelEventWithLatencyInfo(
const blink::WebMouseWheelEvent& wheel_event,
const ui::LatencyInfo& ui_latency) {
TRACE_EVENT0("input", "RenderWidgetHostImpl::ForwardWheelEvent");
ui::LatencyInfo latency_info =
CreateRWHLatencyInfoIfNotExist(&ui_latency, wheel_event.type);
if (IgnoreInputEvents())
return;
if (touch_emulator_ && touch_emulator_->HandleMouseWheelEvent(wheel_event))
return;
input_router_->SendWheelEvent(MouseWheelEventWithLatencyInfo(wheel_event,
latency_info));
}
void RenderWidgetHostImpl::ForwardGestureEvent(
const blink::WebGestureEvent& gesture_event) {
ForwardGestureEventWithLatencyInfo(gesture_event, ui::LatencyInfo());
}
void RenderWidgetHostImpl::ForwardGestureEventWithLatencyInfo(
const blink::WebGestureEvent& gesture_event,
const ui::LatencyInfo& ui_latency) {
TRACE_EVENT0("input", "RenderWidgetHostImpl::ForwardGestureEvent");
// Early out if necessary, prior to performing latency logic.
if (IgnoreInputEvents())
return;
if (delegate_->PreHandleGestureEvent(gesture_event))
return;
ui::LatencyInfo latency_info =
CreateRWHLatencyInfoIfNotExist(&ui_latency, gesture_event.type);
if (gesture_event.type == blink::WebInputEvent::GestureScrollUpdate) {
latency_info.AddLatencyNumber(
ui::INPUT_EVENT_LATENCY_SCROLL_UPDATE_RWH_COMPONENT,
GetLatencyComponentId(),
++last_input_number_);
// Make a copy of the INPUT_EVENT_LATENCY_ORIGINAL_COMPONENT with a
// different name INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL_COMPONENT.
// So we can track the latency specifically for scroll update events.
ui::LatencyInfo::LatencyComponent original_component;
if (latency_info.FindLatency(ui::INPUT_EVENT_LATENCY_ORIGINAL_COMPONENT,
0,
&original_component)) {
latency_info.AddLatencyNumberWithTimestamp(
ui::INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL_COMPONENT,
GetLatencyComponentId(),
original_component.sequence_number,
original_component.event_time,
original_component.event_count);
}
}
GestureEventWithLatencyInfo gesture_with_latency(gesture_event, latency_info);
input_router_->SendGestureEvent(gesture_with_latency);
}
void RenderWidgetHostImpl::ForwardEmulatedTouchEvent(
const blink::WebTouchEvent& touch_event) {
TRACE_EVENT0("input", "RenderWidgetHostImpl::ForwardEmulatedTouchEvent");
ui::LatencyInfo latency_info =
CreateRWHLatencyInfoIfNotExist(NULL, touch_event.type);
TouchEventWithLatencyInfo touch_with_latency(touch_event, latency_info);
input_router_->SendTouchEvent(touch_with_latency);
}
void RenderWidgetHostImpl::ForwardTouchEventWithLatencyInfo(
const blink::WebTouchEvent& touch_event,
const ui::LatencyInfo& ui_latency) {
TRACE_EVENT0("input", "RenderWidgetHostImpl::ForwardTouchEvent");
// Always forward TouchEvents for touch stream consistency. They will be
// ignored if appropriate in FilterInputEvent().
ui::LatencyInfo latency_info =
CreateRWHLatencyInfoIfNotExist(&ui_latency, touch_event.type);
TouchEventWithLatencyInfo touch_with_latency(touch_event, latency_info);
if (touch_emulator_ &&
touch_emulator_->HandleTouchEvent(touch_with_latency.event)) {
if (view_) {
view_->ProcessAckedTouchEvent(
touch_with_latency, INPUT_EVENT_ACK_STATE_CONSUMED);
}
return;
}
input_router_->SendTouchEvent(touch_with_latency);
}
void RenderWidgetHostImpl::ForwardKeyboardEvent(
const NativeWebKeyboardEvent& key_event) {
TRACE_EVENT0("input", "RenderWidgetHostImpl::ForwardKeyboardEvent");
if (IgnoreInputEvents())
return;
if (!process_->HasConnection())
return;
// First, let keypress listeners take a shot at handling the event. If a
// listener handles the event, it should not be propagated to the renderer.
if (KeyPressListenersHandleEvent(key_event)) {
// Some keypresses that are accepted by the listener might have follow up
// char events, which should be ignored.
if (key_event.type == WebKeyboardEvent::RawKeyDown)
suppress_next_char_events_ = true;
return;
}
if (key_event.type == WebKeyboardEvent::Char &&
(key_event.windowsKeyCode == ui::VKEY_RETURN ||
key_event.windowsKeyCode == ui::VKEY_SPACE)) {
OnUserGesture();
}
// Double check the type to make sure caller hasn't sent us nonsense that
// will mess up our key queue.
if (!WebInputEvent::isKeyboardEventType(key_event.type))
return;
if (suppress_next_char_events_) {
// If preceding RawKeyDown event was handled by the browser, then we need
// suppress all Char events generated by it. Please note that, one
// RawKeyDown event may generate multiple Char events, so we can't reset
// |suppress_next_char_events_| until we get a KeyUp or a RawKeyDown.
if (key_event.type == WebKeyboardEvent::Char)
return;
// We get a KeyUp or a RawKeyDown event.
suppress_next_char_events_ = false;
}
bool is_shortcut = false;
// Only pre-handle the key event if it's not handled by the input method.
if (delegate_ && !key_event.skip_in_browser) {
// We need to set |suppress_next_char_events_| to true if
// PreHandleKeyboardEvent() returns true, but |this| may already be
// destroyed at that time. So set |suppress_next_char_events_| true here,
// then revert it afterwards when necessary.
if (key_event.type == WebKeyboardEvent::RawKeyDown)
suppress_next_char_events_ = true;
// Tab switching/closing accelerators aren't sent to the renderer to avoid
// a hung/malicious renderer from interfering.
if (delegate_->PreHandleKeyboardEvent(key_event, &is_shortcut))
return;
if (key_event.type == WebKeyboardEvent::RawKeyDown)
suppress_next_char_events_ = false;
}
if (touch_emulator_ && touch_emulator_->HandleKeyboardEvent(key_event))
return;
input_router_->SendKeyboardEvent(
key_event,
CreateRWHLatencyInfoIfNotExist(NULL, key_event.type),
is_shortcut);
}
void RenderWidgetHostImpl::QueueSyntheticGesture(
scoped_ptr<SyntheticGesture> synthetic_gesture,
const base::Callback<void(SyntheticGesture::Result)>& on_complete) {
if (!synthetic_gesture_controller_ && view_) {
synthetic_gesture_controller_.reset(
new SyntheticGestureController(
view_->CreateSyntheticGestureTarget().Pass()));
}
if (synthetic_gesture_controller_) {
synthetic_gesture_controller_->QueueSyntheticGesture(
synthetic_gesture.Pass(), on_complete);
}
}
void RenderWidgetHostImpl::SetCursor(const WebCursor& cursor) {
if (!view_)
return;
view_->UpdateCursor(cursor);
}
void RenderWidgetHostImpl::ShowContextMenuAtPoint(const gfx::Point& point) {
Send(new ViewMsg_ShowContextMenu(
GetRoutingID(), ui::MENU_SOURCE_MOUSE, point));
}
void RenderWidgetHostImpl::SendCursorVisibilityState(bool is_visible) {
Send(new InputMsg_CursorVisibilityChange(GetRoutingID(), is_visible));
}
int64 RenderWidgetHostImpl::GetLatencyComponentId() {
return GetRoutingID() | (static_cast<int64>(GetProcess()->GetID()) << 32);
}
// static
void RenderWidgetHostImpl::DisableResizeAckCheckForTesting() {
g_check_for_pending_resize_ack = false;
}
ui::LatencyInfo RenderWidgetHostImpl::CreateRWHLatencyInfoIfNotExist(
const ui::LatencyInfo* original, WebInputEvent::Type type) {
ui::LatencyInfo info;
if (original)
info = *original;
// In Aura, gesture event will already carry its original touch event's
// INPUT_EVENT_LATENCY_RWH_COMPONENT.
if (!info.FindLatency(ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT,
GetLatencyComponentId(),
NULL)) {
info.AddLatencyNumber(ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT,
GetLatencyComponentId(),
++last_input_number_);
info.TraceEventType(WebInputEventTraits::GetName(type));
}
return info;
}
void RenderWidgetHostImpl::AddKeyPressEventCallback(
const KeyPressEventCallback& callback) {
key_press_event_callbacks_.push_back(callback);
}
void RenderWidgetHostImpl::RemoveKeyPressEventCallback(
const KeyPressEventCallback& callback) {
for (size_t i = 0; i < key_press_event_callbacks_.size(); ++i) {
if (key_press_event_callbacks_[i].Equals(callback)) {
key_press_event_callbacks_.erase(
key_press_event_callbacks_.begin() + i);
return;
}
}
}
void RenderWidgetHostImpl::AddMouseEventCallback(
const MouseEventCallback& callback) {
mouse_event_callbacks_.push_back(callback);
}
void RenderWidgetHostImpl::RemoveMouseEventCallback(
const MouseEventCallback& callback) {
for (size_t i = 0; i < mouse_event_callbacks_.size(); ++i) {
if (mouse_event_callbacks_[i].Equals(callback)) {
mouse_event_callbacks_.erase(mouse_event_callbacks_.begin() + i);
return;
}
}
}
void RenderWidgetHostImpl::GetWebScreenInfo(blink::WebScreenInfo* result) {
TRACE_EVENT0("renderer_host", "RenderWidgetHostImpl::GetWebScreenInfo");
if (view_)
view_->GetScreenInfo(result);
else
RenderWidgetHostViewBase::GetDefaultScreenInfo(result);
screen_info_out_of_date_ = false;
}
const NativeWebKeyboardEvent*
RenderWidgetHostImpl::GetLastKeyboardEvent() const {
return input_router_->GetLastKeyboardEvent();
}
void RenderWidgetHostImpl::NotifyScreenInfoChanged() {
// The resize message (which may not happen immediately) will carry with it
// the screen info as well as the new size (if the screen has changed scale
// factor).
InvalidateScreenInfo();
WasResized();
}
void RenderWidgetHostImpl::InvalidateScreenInfo() {
screen_info_out_of_date_ = true;
screen_info_.reset();
}
void RenderWidgetHostImpl::GetSnapshotFromBrowser(
const base::Callback<void(const unsigned char*,size_t)> callback) {
int id = next_browser_snapshot_id_++;
pending_browser_snapshots_.insert(std::make_pair(id, callback));
Send(new ViewMsg_ForceRedraw(GetRoutingID(), id));
}
void RenderWidgetHostImpl::OnSelectionChanged(const base::string16& text,
size_t offset,
const gfx::Range& range) {
if (view_)
view_->SelectionChanged(text, offset, range);
}
void RenderWidgetHostImpl::OnSelectionBoundsChanged(
const ViewHostMsg_SelectionBounds_Params& params) {
if (view_) {
view_->SelectionBoundsChanged(params);
}
}
void RenderWidgetHostImpl::UpdateVSyncParameters(base::TimeTicks timebase,
base::TimeDelta interval) {
Send(new ViewMsg_UpdateVSyncParameters(GetRoutingID(), timebase, interval));
}
void RenderWidgetHostImpl::RendererExited(base::TerminationStatus status,
int exit_code) {
// Clearing this flag causes us to re-create the renderer when recovering
// from a crashed renderer.
renderer_initialized_ = false;
waiting_for_screen_rects_ack_ = false;
// Must reset these to ensure that keyboard events work with a new renderer.
suppress_next_char_events_ = false;
// Reset some fields in preparation for recovering from a crash.
ResetSizeAndRepaintPendingFlags();
current_size_.SetSize(0, 0);
// After the renderer crashes, the view is destroyed and so the
// RenderWidgetHost cannot track its visibility anymore. We assume such
// RenderWidgetHost to be visible for the sake of internal accounting - be
// careful about changing this - see http://crbug.com/401859.
//
// We need to at least make sure that the RenderProcessHost is notified about
// the |is_hidden_| change, so that the renderer will have correct visibility
// set when respawned.
if (is_hidden_) {
process_->WidgetRestored();
is_hidden_ = false;
}
// Reset this to ensure the hung renderer mechanism is working properly.
in_flight_event_count_ = 0;
if (view_) {
GpuSurfaceTracker::Get()->SetSurfaceHandle(surface_id_,
gfx::GLSurfaceHandle());
view_->RenderProcessGone(status, exit_code);
view_ = NULL; // The View should be deleted by RenderProcessGone.
}
// Reconstruct the input router to ensure that it has fresh state for a new
// renderer. Otherwise it may be stuck waiting for the old renderer to ack an
// event. (In particular, the above call to view_->RenderProcessGone will
// destroy the aura window, which may dispatch a synthetic mouse move.)
input_router_.reset(new InputRouterImpl(
process_, this, this, routing_id_, GetInputRouterConfigForPlatform()));
synthetic_gesture_controller_.reset();
}
void RenderWidgetHostImpl::UpdateTextDirection(WebTextDirection direction) {
text_direction_updated_ = true;
text_direction_ = direction;
}
void RenderWidgetHostImpl::CancelUpdateTextDirection() {
if (text_direction_updated_)
text_direction_canceled_ = true;
}
void RenderWidgetHostImpl::NotifyTextDirection() {
if (text_direction_updated_) {
if (!text_direction_canceled_)
Send(new ViewMsg_SetTextDirection(GetRoutingID(), text_direction_));
text_direction_updated_ = false;
text_direction_canceled_ = false;
}
}
void RenderWidgetHostImpl::SetInputMethodActive(bool activate) {
input_method_active_ = activate;
Send(new ViewMsg_SetInputMethodActive(GetRoutingID(), activate));
}
void RenderWidgetHostImpl::CandidateWindowShown() {
Send(new ViewMsg_CandidateWindowShown(GetRoutingID()));
}
void RenderWidgetHostImpl::CandidateWindowUpdated() {
Send(new ViewMsg_CandidateWindowUpdated(GetRoutingID()));
}
void RenderWidgetHostImpl::CandidateWindowHidden() {
Send(new ViewMsg_CandidateWindowHidden(GetRoutingID()));
}
void RenderWidgetHostImpl::ImeSetComposition(
const base::string16& text,
const std::vector<blink::WebCompositionUnderline>& underlines,
int selection_start,
int selection_end) {
Send(new InputMsg_ImeSetComposition(
GetRoutingID(), text, underlines, selection_start, selection_end));
}
void RenderWidgetHostImpl::ImeConfirmComposition(
const base::string16& text,
const gfx::Range& replacement_range,
bool keep_selection) {
Send(new InputMsg_ImeConfirmComposition(
GetRoutingID(), text, replacement_range, keep_selection));
}
void RenderWidgetHostImpl::ImeCancelComposition() {
Send(new InputMsg_ImeSetComposition(GetRoutingID(), base::string16(),
std::vector<blink::WebCompositionUnderline>(), 0, 0));
}
gfx::Rect RenderWidgetHostImpl::GetRootWindowResizerRect() const {
return gfx::Rect();
}
void RenderWidgetHostImpl::RequestToLockMouse(bool user_gesture,
bool last_unlocked_by_target) {
// Directly reject to lock the mouse. Subclass can override this method to
// decide whether to allow mouse lock or not.
GotResponseToLockMouseRequest(false);
}
void RenderWidgetHostImpl::RejectMouseLockOrUnlockIfNecessary() {
DCHECK(!pending_mouse_lock_request_ || !IsMouseLocked());
if (pending_mouse_lock_request_) {
pending_mouse_lock_request_ = false;
Send(new ViewMsg_LockMouse_ACK(routing_id_, false));
} else if (IsMouseLocked()) {
view_->UnlockMouse();
}
}
bool RenderWidgetHostImpl::IsMouseLocked() const {
return view_ ? view_->IsMouseLocked() : false;
}
bool RenderWidgetHostImpl::IsFullscreen() const {
return false;
}
void RenderWidgetHostImpl::SetShouldAutoResize(bool enable) {
should_auto_resize_ = enable;
}
void RenderWidgetHostImpl::Destroy() {
NotificationService::current()->Notify(
NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED,
Source<RenderWidgetHost>(this),
NotificationService::NoDetails());
// Tell the view to die.
// Note that in the process of the view shutting down, it can call a ton
// of other messages on us. So if you do any other deinitialization here,
// do it after this call to view_->Destroy().
if (view_)
view_->Destroy();
delete this;
}
void RenderWidgetHostImpl::RendererIsUnresponsive() {
NotificationService::current()->Notify(
NOTIFICATION_RENDER_WIDGET_HOST_HANG,
Source<RenderWidgetHost>(this),
NotificationService::NoDetails());
is_unresponsive_ = true;
NotifyRendererUnresponsive();
}
void RenderWidgetHostImpl::RendererIsResponsive() {
if (is_unresponsive_) {
is_unresponsive_ = false;
NotifyRendererResponsive();
}
}
void RenderWidgetHostImpl::OnRenderViewReady() {
SendScreenRects();
WasResized();
}
void RenderWidgetHostImpl::OnRenderProcessGone(int status, int exit_code) {
// TODO(evanm): This synchronously ends up calling "delete this".
// Is that really what we want in response to this message? I'm matching
// previous behavior of the code here.
Destroy();
}
void RenderWidgetHostImpl::OnClose() {
Shutdown();
}
void RenderWidgetHostImpl::OnSetTooltipText(
const base::string16& tooltip_text,
WebTextDirection text_direction_hint) {
// First, add directionality marks around tooltip text if necessary.
// A naive solution would be to simply always wrap the text. However, on
// windows, Unicode directional embedding characters can't be displayed on
// systems that lack RTL fonts and are instead displayed as empty squares.
//
// To get around this we only wrap the string when we deem it necessary i.e.
// when the locale direction is different than the tooltip direction hint.
//
// Currently, we use element's directionality as the tooltip direction hint.
// An alternate solution would be to set the overall directionality based on
// trying to detect the directionality from the tooltip text rather than the
// element direction. One could argue that would be a preferable solution
// but we use the current approach to match Fx & IE's behavior.
base::string16 wrapped_tooltip_text = tooltip_text;
if (!tooltip_text.empty()) {
if (text_direction_hint == blink::WebTextDirectionLeftToRight) {
// Force the tooltip to have LTR directionality.
wrapped_tooltip_text =
base::i18n::GetDisplayStringInLTRDirectionality(wrapped_tooltip_text);
} else if (text_direction_hint == blink::WebTextDirectionRightToLeft &&
!base::i18n::IsRTL()) {
// Force the tooltip to have RTL directionality.
base::i18n::WrapStringWithRTLFormatting(&wrapped_tooltip_text);
}
}
if (GetView())
view_->SetTooltipText(wrapped_tooltip_text);
}
void RenderWidgetHostImpl::OnUpdateScreenRectsAck() {
waiting_for_screen_rects_ack_ = false;
if (!view_)
return;
if (view_->GetViewBounds() == last_view_screen_rect_ &&
view_->GetBoundsInRootWindow() == last_window_screen_rect_) {
return;
}
SendScreenRects();
}
void RenderWidgetHostImpl::OnRequestMove(const gfx::Rect& pos) {
if (view_) {
view_->SetBounds(pos);
Send(new ViewMsg_Move_ACK(routing_id_));
}
}
bool RenderWidgetHostImpl::OnSwapCompositorFrame(
const IPC::Message& message) {
// This trace event is used in
// chrome/browser/extensions/api/cast_streaming/performance_test.cc
UNSHIPPED_TRACE_EVENT0("test_fps",
TRACE_DISABLED_BY_DEFAULT("OnSwapCompositorFrame"));
ViewHostMsg_SwapCompositorFrame::Param param;
if (!ViewHostMsg_SwapCompositorFrame::Read(&message, &param))
return false;
scoped_ptr<cc::CompositorFrame> frame(new cc::CompositorFrame);
uint32 output_surface_id = param.a;
param.b.AssignTo(frame.get());
std::vector<IPC::Message> messages_to_deliver_with_frame;
messages_to_deliver_with_frame.swap(param.c);
for (size_t i = 0; i < frame->metadata.latency_info.size(); i++)
AddLatencyInfoComponentIds(&frame->metadata.latency_info[i]);
input_router_->OnViewUpdated(
GetInputRouterViewFlagsFromCompositorFrameMetadata(frame->metadata));
if (view_) {
view_->OnSwapCompositorFrame(output_surface_id, frame.Pass());
view_->DidReceiveRendererFrame();
} else {
cc::CompositorFrameAck ack;
if (frame->gl_frame_data) {
ack.gl_frame_data = frame->gl_frame_data.Pass();
ack.gl_frame_data->sync_point = 0;
} else if (frame->delegated_frame_data) {
cc::TransferableResource::ReturnResources(
frame->delegated_frame_data->resource_list,
&ack.resources);
} else if (frame->software_frame_data) {
ack.last_software_frame_id = frame->software_frame_data->id;
}
SendSwapCompositorFrameAck(routing_id_, output_surface_id,
process_->GetID(), ack);
}
RenderProcessHost* rph = GetProcess();
for (std::vector<IPC::Message>::const_iterator i =
messages_to_deliver_with_frame.begin();
i != messages_to_deliver_with_frame.end();
++i) {
rph->OnMessageReceived(*i);
if (i->dispatch_error())
rph->OnBadMessageReceived(*i);
}
messages_to_deliver_with_frame.clear();
return true;
}
void RenderWidgetHostImpl::OnFlingingStopped() {
if (view_)
view_->DidStopFlinging();
}
void RenderWidgetHostImpl::OnUpdateRect(
const ViewHostMsg_UpdateRect_Params& params) {
TRACE_EVENT0("renderer_host", "RenderWidgetHostImpl::OnUpdateRect");
TimeTicks paint_start = TimeTicks::Now();
// Update our knowledge of the RenderWidget's size.
current_size_ = params.view_size;
// Update our knowledge of the RenderWidget's scroll offset.
last_scroll_offset_ = params.scroll_offset;
bool is_resize_ack =
ViewHostMsg_UpdateRect_Flags::is_resize_ack(params.flags);
// resize_ack_pending_ needs to be cleared before we call DidPaintRect, since
// that will end up reaching GetBackingStore.
if (is_resize_ack) {
DCHECK(!g_check_for_pending_resize_ack || resize_ack_pending_);
resize_ack_pending_ = false;
}
bool is_repaint_ack =
ViewHostMsg_UpdateRect_Flags::is_repaint_ack(params.flags);
if (is_repaint_ack) {
DCHECK(repaint_ack_pending_);
TRACE_EVENT_ASYNC_END0(
"renderer_host", "RenderWidgetHostImpl::repaint_ack_pending_", this);
repaint_ack_pending_ = false;
TimeDelta delta = TimeTicks::Now() - repaint_start_time_;
UMA_HISTOGRAM_TIMES("MPArch.RWH_RepaintDelta", delta);
}
DCHECK(!params.view_size.IsEmpty());
DidUpdateBackingStore(params, paint_start);
if (should_auto_resize_) {
bool post_callback = new_auto_size_.IsEmpty();
new_auto_size_ = params.view_size;
if (post_callback) {
base::MessageLoop::current()->PostTask(
FROM_HERE,
base::Bind(&RenderWidgetHostImpl::DelayedAutoResized,
weak_factory_.GetWeakPtr()));
}
}
// Log the time delta for processing a paint message. On platforms that don't
// support asynchronous painting, this is equivalent to
// MPArch.RWH_TotalPaintTime.
TimeDelta delta = TimeTicks::Now() - paint_start;
UMA_HISTOGRAM_TIMES("MPArch.RWH_OnMsgUpdateRect", delta);
}
void RenderWidgetHostImpl::DidUpdateBackingStore(
const ViewHostMsg_UpdateRect_Params& params,
const TimeTicks& paint_start) {
TRACE_EVENT0("renderer_host", "RenderWidgetHostImpl::DidUpdateBackingStore");
TimeTicks update_start = TimeTicks::Now();
// Move the plugins if the view hasn't already been destroyed. Plugin moves
// will not be re-issued, so must move them now, regardless of whether we
// paint or not. MovePluginWindows attempts to move the plugin windows and
// in the process could dispatch other window messages which could cause the
// view to be destroyed.
if (view_)
view_->MovePluginWindows(params.plugin_window_moves);
NotificationService::current()->Notify(
NOTIFICATION_RENDER_WIDGET_HOST_DID_UPDATE_BACKING_STORE,
Source<RenderWidgetHost>(this),
NotificationService::NoDetails());
// We don't need to update the view if the view is hidden. We must do this
// early return after the ACK is sent, however, or the renderer will not send
// us more data.
if (is_hidden_)
return;
// If we got a resize ack, then perhaps we have another resize to send?
bool is_resize_ack =
ViewHostMsg_UpdateRect_Flags::is_resize_ack(params.flags);
if (is_resize_ack)
WasResized();
// Log the time delta for processing a paint message.
TimeTicks now = TimeTicks::Now();
TimeDelta delta = now - update_start;
UMA_HISTOGRAM_TIMES("MPArch.RWH_DidUpdateBackingStore", delta);
}
void RenderWidgetHostImpl::OnQueueSyntheticGesture(
const SyntheticGesturePacket& gesture_packet) {
// Only allow untrustworthy gestures if explicitly enabled.
if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
cc::switches::kEnableGpuBenchmarking)) {
RecordAction(base::UserMetricsAction("BadMessageTerminate_RWH7"));
GetProcess()->ReceivedBadMessage();
return;
}
QueueSyntheticGesture(
SyntheticGesture::Create(*gesture_packet.gesture_params()),
base::Bind(&RenderWidgetHostImpl::OnSyntheticGestureCompleted,
weak_factory_.GetWeakPtr()));
}
void RenderWidgetHostImpl::OnFocus() {
// Only RenderViewHost can deal with that message.
RecordAction(base::UserMetricsAction("BadMessageTerminate_RWH4"));
GetProcess()->ReceivedBadMessage();
}
void RenderWidgetHostImpl::OnBlur() {
// Only RenderViewHost can deal with that message.
RecordAction(base::UserMetricsAction("BadMessageTerminate_RWH5"));
GetProcess()->ReceivedBadMessage();
}
void RenderWidgetHostImpl::OnSetCursor(const WebCursor& cursor) {
SetCursor(cursor);
}
void RenderWidgetHostImpl::OnSetTouchEventEmulationEnabled(
bool enabled, bool allow_pinch) {
SetTouchEventEmulationEnabled(enabled, allow_pinch);
}
void RenderWidgetHostImpl::SetTouchEventEmulationEnabled(
bool enabled, bool allow_pinch) {
if (delegate_)
delegate_->OnTouchEmulationEnabled(enabled);
if (enabled) {
if (!touch_emulator_)
touch_emulator_.reset(new TouchEmulator(this));
touch_emulator_->Enable(allow_pinch);
} else {
if (touch_emulator_)
touch_emulator_->Disable();
}
}
void RenderWidgetHostImpl::OnTextInputStateChanged(
const ViewHostMsg_TextInputState_Params& params) {
if (view_)
view_->TextInputStateChanged(params);
}
#if defined(OS_MACOSX) || defined(USE_AURA)
void RenderWidgetHostImpl::OnImeCompositionRangeChanged(
const gfx::Range& range,
const std::vector<gfx::Rect>& character_bounds) {
if (view_)
view_->ImeCompositionRangeChanged(range, character_bounds);
}
#endif
void RenderWidgetHostImpl::OnImeCancelComposition() {
if (view_)
view_->ImeCancelComposition();
}
void RenderWidgetHostImpl::OnLockMouse(bool user_gesture,
bool last_unlocked_by_target,
bool privileged) {
if (pending_mouse_lock_request_) {
Send(new ViewMsg_LockMouse_ACK(routing_id_, false));
return;
} else if (IsMouseLocked()) {
Send(new ViewMsg_LockMouse_ACK(routing_id_, true));
return;
}
pending_mouse_lock_request_ = true;
if (privileged && allow_privileged_mouse_lock_) {
// Directly approve to lock the mouse.
GotResponseToLockMouseRequest(true);
} else {
RequestToLockMouse(user_gesture, last_unlocked_by_target);
}
}
void RenderWidgetHostImpl::OnUnlockMouse() {
RejectMouseLockOrUnlockIfNecessary();
}
void RenderWidgetHostImpl::OnShowDisambiguationPopup(
const gfx::Rect& rect,
const gfx::Size& size,
const cc::SharedBitmapId& id) {
DCHECK(!rect.IsEmpty());
DCHECK(!size.IsEmpty());
scoped_ptr<cc::SharedBitmap> bitmap =
HostSharedBitmapManager::current()->GetSharedBitmapFromId(size, id);
if (!bitmap) {
RecordAction(base::UserMetricsAction("BadMessageTerminate_RWH6"));
GetProcess()->ReceivedBadMessage();
return;
}
DCHECK(bitmap->pixels());
SkImageInfo info = SkImageInfo::MakeN32Premul(size.width(), size.height());
SkBitmap zoomed_bitmap;
zoomed_bitmap.installPixels(info, bitmap->pixels(), info.minRowBytes());
#if defined(OS_ANDROID)
if (view_)
view_->ShowDisambiguationPopup(rect, zoomed_bitmap);
#else
NOTIMPLEMENTED();
#endif
zoomed_bitmap.setPixels(0);
Send(new ViewMsg_ReleaseDisambiguationPopupBitmap(GetRoutingID(), id));
}
#if defined(OS_WIN)
void RenderWidgetHostImpl::OnWindowlessPluginDummyWindowCreated(
gfx::NativeViewId dummy_activation_window) {
HWND hwnd = reinterpret_cast<HWND>(dummy_activation_window);
// This may happen as a result of a race condition when the plugin is going
// away.
wchar_t window_title[MAX_PATH + 1] = {0};
if (!IsWindow(hwnd) ||
!GetWindowText(hwnd, window_title, arraysize(window_title)) ||
lstrcmpiW(window_title, kDummyActivationWindowName) != 0) {
return;
}
#if defined(USE_AURA)
SetParent(hwnd,
reinterpret_cast<HWND>(view_->GetParentForWindowlessPlugin()));
#else
SetParent(hwnd, reinterpret_cast<HWND>(GetNativeViewId()));
#endif
dummy_windows_for_activation_.push_back(hwnd);
}
void RenderWidgetHostImpl::OnWindowlessPluginDummyWindowDestroyed(
gfx::NativeViewId dummy_activation_window) {
HWND hwnd = reinterpret_cast<HWND>(dummy_activation_window);
std::list<HWND>::iterator i = dummy_windows_for_activation_.begin();
for (; i != dummy_windows_for_activation_.end(); ++i) {
if ((*i) == hwnd) {
dummy_windows_for_activation_.erase(i);
return;
}
}
NOTREACHED() << "Unknown dummy window";
}
#endif
void RenderWidgetHostImpl::SetIgnoreInputEvents(bool ignore_input_events) {
ignore_input_events_ = ignore_input_events;
}
bool RenderWidgetHostImpl::KeyPressListenersHandleEvent(
const NativeWebKeyboardEvent& event) {
if (event.skip_in_browser || event.type != WebKeyboardEvent::RawKeyDown)
return false;
for (size_t i = 0; i < key_press_event_callbacks_.size(); i++) {
size_t original_size = key_press_event_callbacks_.size();
if (key_press_event_callbacks_[i].Run(event))
return true;
// Check whether the callback that just ran removed itself, in which case
// the iterator needs to be decremented to properly account for the removal.
size_t current_size = key_press_event_callbacks_.size();
if (current_size != original_size) {
DCHECK_EQ(original_size - 1, current_size);
--i;
}
}
return false;
}
InputEventAckState RenderWidgetHostImpl::FilterInputEvent(
const blink::WebInputEvent& event, const ui::LatencyInfo& latency_info) {
// Don't ignore touch cancel events, since they may be sent while input
// events are being ignored in order to keep the renderer from getting
// confused about how many touches are active.
if (IgnoreInputEvents() && event.type != WebInputEvent::TouchCancel)
return INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS;
if (!process_->HasConnection())
return INPUT_EVENT_ACK_STATE_UNKNOWN;
if (event.type == WebInputEvent::MouseDown)
OnUserGesture();
return view_ ? view_->FilterInputEvent(event)
: INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
}
void RenderWidgetHostImpl::IncrementInFlightEventCount() {
StartHangMonitorTimeout(
TimeDelta::FromMilliseconds(hung_renderer_delay_ms_));
increment_in_flight_event_count();
}
void RenderWidgetHostImpl::DecrementInFlightEventCount() {
DCHECK_GE(in_flight_event_count_, 0);
// Cancel pending hung renderer checks since the renderer is responsive.
if (decrement_in_flight_event_count() <= 0)
StopHangMonitorTimeout();
}
void RenderWidgetHostImpl::OnHasTouchEventHandlers(bool has_handlers) {
has_touch_handler_ = has_handlers;
}
void RenderWidgetHostImpl::DidFlush() {
if (synthetic_gesture_controller_)
synthetic_gesture_controller_->OnDidFlushInput();
if (view_)
view_->OnDidFlushInput();
}
void RenderWidgetHostImpl::DidOverscroll(const DidOverscrollParams& params) {
if (view_)
view_->DidOverscroll(params);
}
void RenderWidgetHostImpl::OnKeyboardEventAck(
const NativeWebKeyboardEvent& event,
InputEventAckState ack_result) {
#if defined(OS_MACOSX)
if (!is_hidden() && view_ && view_->PostProcessEventForPluginIme(event))
return;
#endif
// We only send unprocessed key event upwards if we are not hidden,
// because the user has moved away from us and no longer expect any effect
// of this key event.
const bool processed = (INPUT_EVENT_ACK_STATE_CONSUMED == ack_result);
if (delegate_ && !processed && !is_hidden() && !event.skip_in_browser) {
delegate_->HandleKeyboardEvent(event);
// WARNING: This RenderWidgetHostImpl can be deallocated at this point
// (i.e. in the case of Ctrl+W, where the call to
// HandleKeyboardEvent destroys this RenderWidgetHostImpl).
}
}
void RenderWidgetHostImpl::OnWheelEventAck(
const MouseWheelEventWithLatencyInfo& wheel_event,
InputEventAckState ack_result) {
if (!wheel_event.latency.FindLatency(
ui::INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_COMPONENT, 0, NULL)) {
// MouseWheelEvent latency ends when it is acked but does not cause any
// rendering scheduled.
ui::LatencyInfo latency = wheel_event.latency;
latency.AddLatencyNumber(
ui::INPUT_EVENT_LATENCY_TERMINATED_MOUSE_COMPONENT, 0, 0);
}
if (!is_hidden() && view_) {
if (ack_result != INPUT_EVENT_ACK_STATE_CONSUMED &&
delegate_->HandleWheelEvent(wheel_event.event)) {
ack_result = INPUT_EVENT_ACK_STATE_CONSUMED;
}
view_->WheelEventAck(wheel_event.event, ack_result);
}
}
void RenderWidgetHostImpl::OnGestureEventAck(
const GestureEventWithLatencyInfo& event,
InputEventAckState ack_result) {
if (!event.latency.FindLatency(
ui::INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_COMPONENT, 0, NULL)) {
// GestureEvent latency ends when it is acked but does not cause any
// rendering scheduled.
ui::LatencyInfo latency = event.latency;
latency.AddLatencyNumber(
ui::INPUT_EVENT_LATENCY_TERMINATED_GESTURE_COMPONENT, 0 ,0);
}
if (ack_result != INPUT_EVENT_ACK_STATE_CONSUMED) {
if (delegate_->HandleGestureEvent(event.event))
ack_result = INPUT_EVENT_ACK_STATE_CONSUMED;
}
if (view_)
view_->GestureEventAck(event.event, ack_result);
}
void RenderWidgetHostImpl::OnTouchEventAck(
const TouchEventWithLatencyInfo& event,
InputEventAckState ack_result) {
TouchEventWithLatencyInfo touch_event = event;
touch_event.latency.AddLatencyNumber(
ui::INPUT_EVENT_LATENCY_ACKED_TOUCH_COMPONENT, 0, 0);
// TouchEvent latency ends at ack if it didn't cause any rendering.
if (!touch_event.latency.FindLatency(
ui::INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_COMPONENT, 0, NULL)) {
touch_event.latency.AddLatencyNumber(
ui::INPUT_EVENT_LATENCY_TERMINATED_TOUCH_COMPONENT, 0, 0);
}
ComputeTouchLatency(touch_event.latency);
if (touch_emulator_ &&
touch_emulator_->HandleTouchEventAck(event.event, ack_result)) {
return;
}
if (view_)
view_->ProcessAckedTouchEvent(touch_event, ack_result);
}
void RenderWidgetHostImpl::OnUnexpectedEventAck(UnexpectedEventAckType type) {
if (type == BAD_ACK_MESSAGE) {
RecordAction(base::UserMetricsAction("BadMessageTerminate_RWH2"));
process_->ReceivedBadMessage();
} else if (type == UNEXPECTED_EVENT_TYPE) {
suppress_next_char_events_ = false;
}
}
void RenderWidgetHostImpl::OnSyntheticGestureCompleted(
SyntheticGesture::Result result) {
Send(new InputMsg_SyntheticGestureCompleted(GetRoutingID()));
}
const gfx::Vector2d& RenderWidgetHostImpl::GetLastScrollOffset() const {
return last_scroll_offset_;
}
bool RenderWidgetHostImpl::IgnoreInputEvents() const {
return ignore_input_events_ || process_->IgnoreInputEvents();
}
bool RenderWidgetHostImpl::ShouldForwardTouchEvent() const {
// It's important that the emulator sees a complete native touch stream,
// allowing it to perform touch filtering as appropriate.
// TODO(dgozman): Remove when touch stream forwarding issues resolved, see
// crbug.com/375940.
if (touch_emulator_ && touch_emulator_->enabled())
return true;
return input_router_->ShouldForwardTouchEvent();
}
void RenderWidgetHostImpl::StartUserGesture() {
OnUserGesture();
}
void RenderWidgetHostImpl::Stop() {
Send(new ViewMsg_Stop(GetRoutingID()));
}
void RenderWidgetHostImpl::SetBackgroundOpaque(bool opaque) {
Send(new ViewMsg_SetBackgroundOpaque(GetRoutingID(), opaque));
}
void RenderWidgetHostImpl::SetEditCommandsForNextKeyEvent(
const std::vector<EditCommand>& commands) {
Send(new InputMsg_SetEditCommandsForNextKeyEvent(GetRoutingID(), commands));
}
void RenderWidgetHostImpl::ExecuteEditCommand(const std::string& command,
const std::string& value) {
Send(new InputMsg_ExecuteEditCommand(GetRoutingID(), command, value));
}
void RenderWidgetHostImpl::ScrollFocusedEditableNodeIntoRect(
const gfx::Rect& rect) {
Send(new InputMsg_ScrollFocusedEditableNodeIntoRect(GetRoutingID(), rect));
}
void RenderWidgetHostImpl::MoveCaret(const gfx::Point& point) {
Send(new InputMsg_MoveCaret(GetRoutingID(), point));
}
bool RenderWidgetHostImpl::GotResponseToLockMouseRequest(bool allowed) {
if (!allowed) {
RejectMouseLockOrUnlockIfNecessary();
return false;
} else {
if (!pending_mouse_lock_request_) {
// This is possible, e.g., the plugin sends us an unlock request before
// the user allows to lock to mouse.
return false;
}
pending_mouse_lock_request_ = false;
if (!view_ || !view_->HasFocus()|| !view_->LockMouse()) {
Send(new ViewMsg_LockMouse_ACK(routing_id_, false));
return false;
} else {
Send(new ViewMsg_LockMouse_ACK(routing_id_, true));
return true;
}
}
}
// static
void RenderWidgetHostImpl::AcknowledgeBufferPresent(
int32 route_id, int gpu_host_id,
const AcceleratedSurfaceMsg_BufferPresented_Params& params) {
GpuProcessHostUIShim* ui_shim = GpuProcessHostUIShim::FromID(gpu_host_id);
if (ui_shim) {
ui_shim->Send(new AcceleratedSurfaceMsg_BufferPresented(route_id,
params));
}
}
// static
void RenderWidgetHostImpl::SendSwapCompositorFrameAck(
int32 route_id,
uint32 output_surface_id,
int renderer_host_id,
const cc::CompositorFrameAck& ack) {
RenderProcessHost* host = RenderProcessHost::FromID(renderer_host_id);
if (!host)
return;
host->Send(new ViewMsg_SwapCompositorFrameAck(
route_id, output_surface_id, ack));
}
// static
void RenderWidgetHostImpl::SendReclaimCompositorResources(
int32 route_id,
uint32 output_surface_id,
int renderer_host_id,
const cc::CompositorFrameAck& ack) {
RenderProcessHost* host = RenderProcessHost::FromID(renderer_host_id);
if (!host)
return;
host->Send(
new ViewMsg_ReclaimCompositorResources(route_id, output_surface_id, ack));
}
void RenderWidgetHostImpl::DelayedAutoResized() {
gfx::Size new_size = new_auto_size_;
// Clear the new_auto_size_ since the empty value is used as a flag to
// indicate that no callback is in progress (i.e. without this line
// DelayedAutoResized will not get called again).
new_auto_size_.SetSize(0, 0);
if (!should_auto_resize_)
return;
OnRenderAutoResized(new_size);
}
void RenderWidgetHostImpl::DetachDelegate() {
delegate_ = NULL;
}
void RenderWidgetHostImpl::ComputeTouchLatency(
const ui::LatencyInfo& latency_info) {
ui::LatencyInfo::LatencyComponent ui_component;
ui::LatencyInfo::LatencyComponent rwh_component;
ui::LatencyInfo::LatencyComponent acked_component;
if (!latency_info.FindLatency(ui::INPUT_EVENT_LATENCY_UI_COMPONENT,
0,
&ui_component) ||
!latency_info.FindLatency(ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT,
GetLatencyComponentId(),
&rwh_component))
return;
DCHECK(ui_component.event_count == 1);
DCHECK(rwh_component.event_count == 1);
base::TimeDelta ui_delta =
rwh_component.event_time - ui_component.event_time;
UMA_HISTOGRAM_CUSTOM_COUNTS(
"Event.Latency.Browser.TouchUI",
ui_delta.InMicroseconds(),
1,
20000,
100);
if (latency_info.FindLatency(ui::INPUT_EVENT_LATENCY_ACKED_TOUCH_COMPONENT,
0,
&acked_component)) {
DCHECK(acked_component.event_count == 1);
base::TimeDelta acked_delta =
acked_component.event_time - rwh_component.event_time;
UMA_HISTOGRAM_CUSTOM_COUNTS(
"Event.Latency.Browser.TouchAcked",
acked_delta.InMicroseconds(),
1,
1000000,
100);
}
}
void RenderWidgetHostImpl::FrameSwapped(const ui::LatencyInfo& latency_info) {
ui::LatencyInfo::LatencyComponent window_snapshot_component;
if (latency_info.FindLatency(ui::WINDOW_OLD_SNAPSHOT_FRAME_NUMBER_COMPONENT,
GetLatencyComponentId(),
&window_snapshot_component)) {
WindowOldSnapshotReachedScreen(
static_cast<int>(window_snapshot_component.sequence_number));
}
if (latency_info.FindLatency(ui::WINDOW_SNAPSHOT_FRAME_NUMBER_COMPONENT,
GetLatencyComponentId(),
&window_snapshot_component)) {
int sequence_number = static_cast<int>(
window_snapshot_component.sequence_number);
#if defined(OS_MACOSX)
// On Mac, when using CoreAnmation, there is a delay between when content
// is drawn to the screen, and when the snapshot will actually pick up
// that content. Insert a manual delay of 1/6th of a second (to simulate
// 10 frames at 60 fps) before actually taking the snapshot.
base::MessageLoop::current()->PostDelayedTask(
FROM_HERE,
base::Bind(&RenderWidgetHostImpl::WindowSnapshotReachedScreen,
weak_factory_.GetWeakPtr(),
sequence_number),
base::TimeDelta::FromSecondsD(1. / 6));
#else
WindowSnapshotReachedScreen(sequence_number);
#endif
}
ui::LatencyInfo::LatencyComponent swap_component;
if (!latency_info.FindLatency(
ui::INPUT_EVENT_LATENCY_TERMINATED_FRAME_SWAP_COMPONENT,
0,
&swap_component)) {
return;
}
ui::LatencyInfo::LatencyComponent tab_switch_component;
if (latency_info.FindLatency(ui::TAB_SHOW_COMPONENT,
GetLatencyComponentId(),
&tab_switch_component)) {
base::TimeDelta delta =
swap_component.event_time - tab_switch_component.event_time;
for (size_t i = 0; i < tab_switch_component.event_count; i++) {
UMA_HISTOGRAM_TIMES("MPArch.RWH_TabSwitchPaintDuration", delta);
}
}
ui::LatencyInfo::LatencyComponent rwh_component;
if (!latency_info.FindLatency(ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT,
GetLatencyComponentId(),
&rwh_component)) {
return;
}
ui::LatencyInfo::LatencyComponent original_component;
if (latency_info.FindLatency(
ui::INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL_COMPONENT,
GetLatencyComponentId(),
&original_component)) {
// This UMA metric tracks the time from when the original touch event is
// created (averaged if there are multiple) to when the scroll gesture
// results in final frame swap.
base::TimeDelta delta =
swap_component.event_time - original_component.event_time;
for (size_t i = 0; i < original_component.event_count; i++) {
UMA_HISTOGRAM_CUSTOM_COUNTS(
"Event.Latency.TouchToScrollUpdateSwap",
delta.InMicroseconds(),
1,
1000000,
100);
}
}
}
void RenderWidgetHostImpl::DidReceiveRendererFrame() {
view_->DidReceiveRendererFrame();
}
void RenderWidgetHostImpl::WindowSnapshotAsyncCallback(
int routing_id,
int snapshot_id,
gfx::Size snapshot_size,
scoped_refptr<base::RefCountedBytes> png_data) {
if (!png_data) {
std::vector<unsigned char> png_vector;
Send(new ViewMsg_WindowSnapshotCompleted(
routing_id, snapshot_id, gfx::Size(), png_vector));
return;
}
Send(new ViewMsg_WindowSnapshotCompleted(
routing_id, snapshot_id, snapshot_size, png_data->data()));
}
void RenderWidgetHostImpl::WindowOldSnapshotReachedScreen(int snapshot_id) {
DCHECK(base::MessageLoopForUI::IsCurrent());
std::vector<unsigned char> png;
// This feature is behind the kEnableGpuBenchmarking command line switch
// because it poses security concerns and should only be used for testing.
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
if (!command_line.HasSwitch(cc::switches::kEnableGpuBenchmarking)) {
Send(new ViewMsg_WindowSnapshotCompleted(
GetRoutingID(), snapshot_id, gfx::Size(), png));
return;
}
gfx::Rect view_bounds = GetView()->GetViewBounds();
gfx::Rect snapshot_bounds(view_bounds.size());
gfx::Size snapshot_size = snapshot_bounds.size();
if (ui::GrabViewSnapshot(
GetView()->GetNativeView(), &png, snapshot_bounds)) {
Send(new ViewMsg_WindowSnapshotCompleted(
GetRoutingID(), snapshot_id, snapshot_size, png));
return;
}
ui::GrabViewSnapshotAsync(
GetView()->GetNativeView(),
snapshot_bounds,
base::ThreadTaskRunnerHandle::Get(),
base::Bind(&RenderWidgetHostImpl::WindowSnapshotAsyncCallback,
weak_factory_.GetWeakPtr(),
GetRoutingID(),
snapshot_id,
snapshot_size));
}
void RenderWidgetHostImpl::WindowSnapshotReachedScreen(int snapshot_id) {
DCHECK(base::MessageLoopForUI::IsCurrent());
gfx::Rect view_bounds = GetView()->GetViewBounds();
gfx::Rect snapshot_bounds(view_bounds.size());
std::vector<unsigned char> png;
if (ui::GrabViewSnapshot(
GetView()->GetNativeView(), &png, snapshot_bounds)) {
OnSnapshotDataReceived(snapshot_id, &png.front(), png.size());
return;
}
ui::GrabViewSnapshotAsync(
GetView()->GetNativeView(),
snapshot_bounds,
base::ThreadTaskRunnerHandle::Get(),
base::Bind(&RenderWidgetHostImpl::OnSnapshotDataReceivedAsync,
weak_factory_.GetWeakPtr(),
snapshot_id));
}
void RenderWidgetHostImpl::OnSnapshotDataReceived(int snapshot_id,
const unsigned char* data,
size_t size) {
// Any pending snapshots with a lower ID than the one received are considered
// to be implicitly complete, and returned the same snapshot data.
PendingSnapshotMap::iterator it = pending_browser_snapshots_.begin();
while(it != pending_browser_snapshots_.end()) {
if (it->first <= snapshot_id) {
it->second.Run(data, size);
pending_browser_snapshots_.erase(it++);
} else {
++it;
}
}
}
void RenderWidgetHostImpl::OnSnapshotDataReceivedAsync(
int snapshot_id,
scoped_refptr<base::RefCountedBytes> png_data) {
if (png_data)
OnSnapshotDataReceived(snapshot_id, png_data->front(), png_data->size());
else
OnSnapshotDataReceived(snapshot_id, NULL, 0);
}
// static
void RenderWidgetHostImpl::CompositorFrameDrawn(
const std::vector<ui::LatencyInfo>& latency_info) {
for (size_t i = 0; i < latency_info.size(); i++) {
std::set<RenderWidgetHostImpl*> rwhi_set;
for (ui::LatencyInfo::LatencyMap::const_iterator b =
latency_info[i].latency_components.begin();
b != latency_info[i].latency_components.end();
++b) {
if (b->first.first == ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT ||
b->first.first == ui::WINDOW_SNAPSHOT_FRAME_NUMBER_COMPONENT ||
b->first.first == ui::WINDOW_OLD_SNAPSHOT_FRAME_NUMBER_COMPONENT ||
b->first.first == ui::TAB_SHOW_COMPONENT) {
// Matches with GetLatencyComponentId
int routing_id = b->first.second & 0xffffffff;
int process_id = (b->first.second >> 32) & 0xffffffff;
RenderWidgetHost* rwh =
RenderWidgetHost::FromID(process_id, routing_id);
if (!rwh) {
continue;
}
RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(rwh);
if (rwhi_set.insert(rwhi).second)
rwhi->FrameSwapped(latency_info[i]);
}
}
}
}
void RenderWidgetHostImpl::AddLatencyInfoComponentIds(
ui::LatencyInfo* latency_info) {
ui::LatencyInfo::LatencyMap new_components;
ui::LatencyInfo::LatencyMap::iterator lc =
latency_info->latency_components.begin();
while (lc != latency_info->latency_components.end()) {
ui::LatencyComponentType component_type = lc->first.first;
if (component_type == ui::WINDOW_SNAPSHOT_FRAME_NUMBER_COMPONENT ||
component_type == ui::WINDOW_OLD_SNAPSHOT_FRAME_NUMBER_COMPONENT) {
// Generate a new component entry with the correct component ID
ui::LatencyInfo::LatencyMap::key_type key =
std::make_pair(component_type, GetLatencyComponentId());
new_components[key] = lc->second;
// Remove the old entry
latency_info->latency_components.erase(lc++);
} else {
++lc;
}
}
// Add newly generated components into the latency info
for (lc = new_components.begin(); lc != new_components.end(); ++lc) {
latency_info->latency_components[lc->first] = lc->second;
}
}
BrowserAccessibilityManager*
RenderWidgetHostImpl::GetRootBrowserAccessibilityManager() {
return delegate_ ? delegate_->GetRootBrowserAccessibilityManager() : NULL;
}
BrowserAccessibilityManager*
RenderWidgetHostImpl::GetOrCreateRootBrowserAccessibilityManager() {
return delegate_ ?
delegate_->GetOrCreateRootBrowserAccessibilityManager() : NULL;
}
#if defined(OS_WIN)
gfx::NativeViewAccessible
RenderWidgetHostImpl::GetParentNativeViewAccessible() {
return delegate_ ? delegate_->GetParentNativeViewAccessible() : NULL;
}
#endif
SkColorType RenderWidgetHostImpl::PreferredReadbackFormat() {
if (view_)
return view_->PreferredReadbackFormat();
return kN32_SkColorType;
}
} // namespace content