forked from MarshallOfSound/electron
/
osr_render_widget_host_view.cc
1310 lines (1092 loc) · 42 KB
/
osr_render_widget_host_view.cc
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// Copyright (c) 2016 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "atom/browser/osr/osr_render_widget_host_view.h"
#include <algorithm>
#include <memory>
#include <utility>
#include <vector>
#include "base/callback_helpers.h"
#include "base/location.h"
#include "base/memory/ptr_util.h"
#include "base/single_thread_task_runner.h"
#include "base/task/post_task.h"
#include "base/time/time.h"
#include "components/viz/common/features.h"
#include "components/viz/common/frame_sinks/copy_output_request.h"
#include "components/viz/common/frame_sinks/delay_based_time_source.h"
#include "components/viz/common/gl_helper.h"
#include "components/viz/common/quads/render_pass.h"
#include "content/browser/renderer_host/cursor_manager.h"
#include "content/browser/renderer_host/render_widget_host_delegate.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "content/common/view_messages.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/context_factory.h"
#include "content/public/browser/render_process_host.h"
#include "media/base/video_frame.h"
#include "third_party/blink/public/platform/web_input_event.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "ui/compositor/compositor.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/layer_type.h"
#include "ui/display/screen.h"
#include "ui/events/base_event_utils.h"
#include "ui/events/event_constants.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/geometry/dip_util.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gfx/skbitmap_operations.h"
#include "ui/latency/latency_info.h"
namespace atom {
namespace {
const float kDefaultScaleFactor = 1.0;
const int kFrameRetryLimit = 2;
ui::MouseEvent UiMouseEventFromWebMouseEvent(blink::WebMouseEvent event) {
ui::EventType type = ui::EventType::ET_UNKNOWN;
switch (event.GetType()) {
case blink::WebInputEvent::kMouseDown:
type = ui::EventType::ET_MOUSE_PRESSED;
break;
case blink::WebInputEvent::kMouseUp:
type = ui::EventType::ET_MOUSE_RELEASED;
break;
case blink::WebInputEvent::kMouseMove:
type = ui::EventType::ET_MOUSE_MOVED;
break;
case blink::WebInputEvent::kMouseEnter:
type = ui::EventType::ET_MOUSE_ENTERED;
break;
case blink::WebInputEvent::kMouseLeave:
type = ui::EventType::ET_MOUSE_EXITED;
break;
case blink::WebInputEvent::kMouseWheel:
type = ui::EventType::ET_MOUSEWHEEL;
break;
default:
type = ui::EventType::ET_UNKNOWN;
break;
}
int button_flags = 0;
switch (event.button) {
case blink::WebMouseEvent::Button::kBack:
button_flags |= ui::EventFlags::EF_BACK_MOUSE_BUTTON;
break;
case blink::WebMouseEvent::Button::kForward:
button_flags |= ui::EventFlags::EF_FORWARD_MOUSE_BUTTON;
break;
case blink::WebMouseEvent::Button::kLeft:
button_flags |= ui::EventFlags::EF_LEFT_MOUSE_BUTTON;
break;
case blink::WebMouseEvent::Button::kMiddle:
button_flags |= ui::EventFlags::EF_MIDDLE_MOUSE_BUTTON;
break;
case blink::WebMouseEvent::Button::kRight:
button_flags |= ui::EventFlags::EF_RIGHT_MOUSE_BUTTON;
break;
default:
button_flags = 0;
break;
}
ui::MouseEvent ui_event(type,
gfx::Point(std::floor(event.PositionInWidget().x),
std::floor(event.PositionInWidget().y)),
gfx::Point(std::floor(event.PositionInWidget().x),
std::floor(event.PositionInWidget().y)),
ui::EventTimeForNow(), button_flags, button_flags);
ui_event.SetClickCount(event.click_count);
return ui_event;
}
ui::MouseWheelEvent UiMouseWheelEventFromWebMouseEvent(
blink::WebMouseWheelEvent event) {
return ui::MouseWheelEvent(UiMouseEventFromWebMouseEvent(event),
std::floor(event.delta_x),
std::floor(event.delta_y));
}
} // namespace
class AtomCopyFrameGenerator {
public:
AtomCopyFrameGenerator(OffScreenRenderWidgetHostView* view,
int frame_rate_threshold_us)
: view_(view),
frame_duration_(
base::TimeDelta::FromMicroseconds(frame_rate_threshold_us)),
weak_ptr_factory_(this) {
last_time_ = base::Time::Now();
}
void GenerateCopyFrame(const gfx::Rect& damage_rect) {
if (!view_->render_widget_host() || !view_->IsPainting())
return;
auto request = std::make_unique<viz::CopyOutputRequest>(
viz::CopyOutputRequest::ResultFormat::RGBA_BITMAP,
base::BindOnce(
&AtomCopyFrameGenerator::CopyFromCompositingSurfaceHasResult,
weak_ptr_factory_.GetWeakPtr(), damage_rect));
request->set_area(gfx::Rect(view_->GetCompositorViewportPixelSize()));
view_->GetRootLayer()->RequestCopyOfOutput(std::move(request));
}
void set_frame_rate_threshold_us(int frame_rate_threshold_us) {
frame_duration_ =
base::TimeDelta::FromMicroseconds(frame_rate_threshold_us);
}
private:
void CopyFromCompositingSurfaceHasResult(
const gfx::Rect& damage_rect,
std::unique_ptr<viz::CopyOutputResult> result) {
if (result->IsEmpty() || result->size().IsEmpty() ||
!view_->render_widget_host()) {
OnCopyFrameCaptureFailure(damage_rect);
return;
}
DCHECK(!result->IsEmpty());
auto source = std::make_unique<SkBitmap>(result->AsSkBitmap());
DCHECK(source->readyToDraw());
if (source) {
base::AutoLock autolock(lock_);
std::shared_ptr<SkBitmap> bitmap(source.release());
base::TimeTicks now = base::TimeTicks::Now();
base::TimeDelta next_frame_in = next_frame_time_ - now;
if (next_frame_in > frame_duration_ / 4) {
next_frame_time_ += frame_duration_;
base::PostDelayedTaskWithTraits(
FROM_HERE, {content::BrowserThread::UI},
base::BindOnce(&AtomCopyFrameGenerator::OnCopyFrameCaptureSuccess,
weak_ptr_factory_.GetWeakPtr(), damage_rect, bitmap),
next_frame_in);
} else {
next_frame_time_ = now + frame_duration_;
OnCopyFrameCaptureSuccess(damage_rect, bitmap);
}
frame_retry_count_ = 0;
} else {
OnCopyFrameCaptureFailure(damage_rect);
}
}
void OnCopyFrameCaptureFailure(const gfx::Rect& damage_rect) {
const bool force_frame = (++frame_retry_count_ <= kFrameRetryLimit);
if (force_frame) {
// Retry with the same |damage_rect|.
base::PostTaskWithTraits(
FROM_HERE, {content::BrowserThread::UI},
base::BindOnce(&AtomCopyFrameGenerator::GenerateCopyFrame,
weak_ptr_factory_.GetWeakPtr(), damage_rect));
}
}
void OnCopyFrameCaptureSuccess(const gfx::Rect& damage_rect,
const std::shared_ptr<SkBitmap>& bitmap) {
base::AutoLock lock(onPaintLock_);
view_->OnPaint(damage_rect, *bitmap);
}
base::Lock lock_;
base::Lock onPaintLock_;
OffScreenRenderWidgetHostView* view_;
base::Time last_time_;
int frame_retry_count_ = 0;
base::TimeTicks next_frame_time_ = base::TimeTicks::Now();
base::TimeDelta frame_duration_;
base::WeakPtrFactory<AtomCopyFrameGenerator> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(AtomCopyFrameGenerator);
};
class AtomBeginFrameTimer : public viz::DelayBasedTimeSourceClient {
public:
AtomBeginFrameTimer(int frame_rate_threshold_us,
const base::Closure& callback)
: callback_(callback) {
time_source_.reset(new viz::DelayBasedTimeSource(
base::CreateSingleThreadTaskRunnerWithTraits(
{content::BrowserThread::UI})
.get()));
time_source_->SetTimebaseAndInterval(
base::TimeTicks(),
base::TimeDelta::FromMicroseconds(frame_rate_threshold_us));
time_source_->SetClient(this);
}
void SetActive(bool active) { time_source_->SetActive(active); }
bool IsActive() const { return time_source_->Active(); }
void SetFrameRateThresholdUs(int frame_rate_threshold_us) {
time_source_->SetTimebaseAndInterval(
base::TimeTicks::Now(),
base::TimeDelta::FromMicroseconds(frame_rate_threshold_us));
}
private:
void OnTimerTick() override { callback_.Run(); }
const base::Closure callback_;
std::unique_ptr<viz::DelayBasedTimeSource> time_source_;
DISALLOW_COPY_AND_ASSIGN(AtomBeginFrameTimer);
};
#if !defined(OS_MACOSX)
class AtomDelegatedFrameHostClient : public content::DelegatedFrameHostClient {
public:
explicit AtomDelegatedFrameHostClient(OffScreenRenderWidgetHostView* view)
: view_(view) {}
ui::Layer* DelegatedFrameHostGetLayer() const override {
return view_->GetRootLayer();
}
bool DelegatedFrameHostIsVisible() const override {
return view_->IsShowing();
}
SkColor DelegatedFrameHostGetGutterColor() const override {
if (view_->render_widget_host()->delegate() &&
view_->render_widget_host()->delegate()->IsFullscreenForCurrentTab()) {
return SK_ColorWHITE;
}
return *view_->GetBackgroundColor();
}
void OnFrameTokenChanged(uint32_t frame_token) override {
view_->render_widget_host()->DidProcessFrame(frame_token);
}
float GetDeviceScaleFactor() const override {
return view_->GetDeviceScaleFactor();
}
std::vector<viz::SurfaceId> CollectSurfaceIdsForEviction() override {
return view_->render_widget_host()->CollectSurfaceIdsForEviction();
}
void OnBeginFrame(base::TimeTicks frame_time) override {}
void InvalidateLocalSurfaceIdOnEviction() override {}
private:
OffScreenRenderWidgetHostView* const view_;
DISALLOW_COPY_AND_ASSIGN(AtomDelegatedFrameHostClient);
};
#endif // !defined(OS_MACOSX)
OffScreenRenderWidgetHostView::OffScreenRenderWidgetHostView(
bool transparent,
bool painting,
int frame_rate,
const OnPaintCallback& callback,
content::RenderWidgetHost* host,
OffScreenRenderWidgetHostView* parent_host_view,
gfx::Size initial_size)
: content::RenderWidgetHostViewBase(host),
render_widget_host_(content::RenderWidgetHostImpl::From(host)),
parent_host_view_(parent_host_view),
transparent_(transparent),
callback_(callback),
frame_rate_(frame_rate),
size_(initial_size),
painting_(painting),
is_showing_(!render_widget_host_->is_hidden()),
cursor_manager_(new content::CursorManager(this)),
mouse_wheel_phase_handler_(this),
weak_ptr_factory_(this) {
DCHECK(render_widget_host_);
bool is_guest_view_hack = parent_host_view_ != nullptr;
current_device_scale_factor_ = kDefaultScaleFactor;
#if !defined(OS_MACOSX)
local_surface_id_allocator_.GenerateId();
local_surface_id_allocation_ =
local_surface_id_allocator_.GetCurrentLocalSurfaceIdAllocation();
delegated_frame_host_client_.reset(new AtomDelegatedFrameHostClient(this));
delegated_frame_host_ = std::make_unique<content::DelegatedFrameHost>(
AllocateFrameSinkId(is_guest_view_hack),
delegated_frame_host_client_.get(),
true /* should_register_frame_sink_id */);
root_layer_.reset(new ui::Layer(ui::LAYER_SOLID_COLOR));
#endif
#if defined(OS_MACOSX)
last_frame_root_background_color_ = SK_ColorTRANSPARENT;
CreatePlatformWidget(is_guest_view_hack);
#endif
bool opaque = SkColorGetA(background_color_) == SK_AlphaOPAQUE;
GetRootLayer()->SetFillsBoundsOpaquely(opaque);
GetRootLayer()->SetColor(background_color_);
#if !defined(OS_MACOSX)
// On macOS the ui::Compositor is created/owned by the platform view.
content::ImageTransportFactory* factory =
content::ImageTransportFactory::GetInstance();
ui::ContextFactoryPrivate* context_factory_private =
factory->GetContextFactoryPrivate();
compositor_.reset(
new ui::Compositor(context_factory_private->AllocateFrameSinkId(),
content::GetContextFactory(), context_factory_private,
base::ThreadTaskRunnerHandle::Get(),
features::IsSurfaceSynchronizationEnabled(),
false /* enable_pixel_canvas */));
compositor_->SetAcceleratedWidget(gfx::kNullAcceleratedWidget);
compositor_->SetRootLayer(root_layer_.get());
#endif
GetCompositor()->SetDelegate(this);
ResizeRootLayer(false);
render_widget_host_->SetView(this);
InstallTransparency();
}
OffScreenRenderWidgetHostView::~OffScreenRenderWidgetHostView() {
#if defined(OS_MACOSX)
if (is_showing_)
browser_compositor_->SetRenderWidgetHostIsHidden(true);
#else
// Marking the DelegatedFrameHost as removed from the window hierarchy is
// necessary to remove all connections to its old ui::Compositor.
if (is_showing_)
delegated_frame_host_->WasHidden();
delegated_frame_host_->DetachFromCompositor();
#endif
if (copy_frame_generator_.get())
copy_frame_generator_.reset(NULL);
#if defined(OS_MACOSX)
DestroyPlatformWidget();
#else
delegated_frame_host_.reset(NULL);
compositor_.reset(NULL);
root_layer_.reset(NULL);
#endif
}
content::BrowserAccessibilityManager*
OffScreenRenderWidgetHostView::CreateBrowserAccessibilityManager(
content::BrowserAccessibilityDelegate*,
bool) {
return nullptr;
}
void OffScreenRenderWidgetHostView::OnBeginFrameTimerTick() {
const base::TimeTicks frame_time = base::TimeTicks::Now();
const base::TimeDelta vsync_period =
base::TimeDelta::FromMicroseconds(frame_rate_threshold_us_);
SendBeginFrame(frame_time, vsync_period);
}
void OffScreenRenderWidgetHostView::SendBeginFrame(
base::TimeTicks frame_time,
base::TimeDelta vsync_period) {
base::TimeTicks display_time = frame_time + vsync_period;
base::TimeDelta estimated_browser_composite_time =
base::TimeDelta::FromMicroseconds(
(1.0f * base::Time::kMicrosecondsPerSecond) / (3.0f * 60));
base::TimeTicks deadline = display_time - estimated_browser_composite_time;
const viz::BeginFrameArgs& begin_frame_args = viz::BeginFrameArgs::Create(
BEGINFRAME_FROM_HERE, begin_frame_source_.source_id(),
begin_frame_number_, frame_time, deadline, vsync_period,
viz::BeginFrameArgs::NORMAL);
DCHECK(begin_frame_args.IsValid());
begin_frame_number_++;
if (renderer_compositor_frame_sink_)
renderer_compositor_frame_sink_->OnBeginFrame(begin_frame_args, {});
}
void OffScreenRenderWidgetHostView::InitAsChild(gfx::NativeView) {
DCHECK(parent_host_view_);
if (parent_host_view_->child_host_view_) {
parent_host_view_->child_host_view_->CancelWidget();
}
parent_host_view_->set_child_host_view(this);
parent_host_view_->Hide();
ResizeRootLayer(false);
Show();
}
void OffScreenRenderWidgetHostView::SetSize(const gfx::Size& size) {
size_ = size;
SynchronizeVisualProperties();
}
void OffScreenRenderWidgetHostView::SetBounds(const gfx::Rect& new_bounds) {
SetSize(new_bounds.size());
}
gfx::NativeView OffScreenRenderWidgetHostView::GetNativeView() const {
return gfx::NativeView();
}
gfx::NativeViewAccessible
OffScreenRenderWidgetHostView::GetNativeViewAccessible() {
return gfx::NativeViewAccessible();
}
ui::TextInputClient* OffScreenRenderWidgetHostView::GetTextInputClient() {
return nullptr;
}
void OffScreenRenderWidgetHostView::Focus() {}
bool OffScreenRenderWidgetHostView::HasFocus() const {
return false;
}
bool OffScreenRenderWidgetHostView::IsSurfaceAvailableForCopy() const {
return GetDelegatedFrameHost()->CanCopyFromCompositingSurface();
}
void OffScreenRenderWidgetHostView::Show() {
if (is_showing_)
return;
is_showing_ = true;
#if defined(OS_MACOSX)
browser_compositor_->SetRenderWidgetHostIsHidden(false);
#else
delegated_frame_host_->AttachToCompositor(compositor_.get());
delegated_frame_host_->WasShown(
GetLocalSurfaceIdAllocation().local_surface_id(),
GetRootLayer()->bounds().size(), false);
#endif
if (render_widget_host_)
render_widget_host_->WasShown(false);
}
void OffScreenRenderWidgetHostView::Hide() {
if (!is_showing_)
return;
if (render_widget_host_)
render_widget_host_->WasHidden();
#if defined(OS_MACOSX)
browser_compositor_->SetRenderWidgetHostIsHidden(true);
#else
GetDelegatedFrameHost()->WasHidden();
GetDelegatedFrameHost()->DetachFromCompositor();
#endif
is_showing_ = false;
}
bool OffScreenRenderWidgetHostView::IsShowing() {
return is_showing_;
}
void OffScreenRenderWidgetHostView::EnsureSurfaceSynchronizedForLayoutTest() {
++latest_capture_sequence_number_;
SynchronizeVisualProperties();
}
gfx::Rect OffScreenRenderWidgetHostView::GetViewBounds() const {
if (IsPopupWidget())
return popup_position_;
return gfx::Rect(size_);
}
void OffScreenRenderWidgetHostView::SetBackgroundColor(SkColor color) {
// The renderer will feed its color back to us with the first CompositorFrame.
// We short-cut here to show a sensible color before that happens.
UpdateBackgroundColorFromRenderer(color);
if (render_widget_host_) {
render_widget_host_->SetBackgroundOpaque(SkColorGetA(color) ==
SK_AlphaOPAQUE);
}
}
base::Optional<SkColor> OffScreenRenderWidgetHostView::GetBackgroundColor()
const {
return background_color_;
}
void OffScreenRenderWidgetHostView::UpdateBackgroundColor() {
NOTREACHED();
}
gfx::Size OffScreenRenderWidgetHostView::GetVisibleViewportSize() const {
return size_;
}
void OffScreenRenderWidgetHostView::SetInsets(const gfx::Insets& insets) {}
bool OffScreenRenderWidgetHostView::LockMouse() {
return false;
}
void OffScreenRenderWidgetHostView::UnlockMouse() {}
void OffScreenRenderWidgetHostView::TakeFallbackContentFrom(
content::RenderWidgetHostView* view) {
DCHECK(!static_cast<content::RenderWidgetHostViewBase*>(view)
->IsRenderWidgetHostViewChildFrame());
DCHECK(!static_cast<content::RenderWidgetHostViewBase*>(view)
->IsRenderWidgetHostViewGuest());
OffScreenRenderWidgetHostView* view_osr =
static_cast<OffScreenRenderWidgetHostView*>(view);
SetBackgroundColor(view_osr->background_color_);
if (GetDelegatedFrameHost() && view_osr->GetDelegatedFrameHost()) {
GetDelegatedFrameHost()->TakeFallbackContentFrom(
view_osr->GetDelegatedFrameHost());
}
host()->GetContentRenderingTimeoutFrom(view_osr->host());
}
void OffScreenRenderWidgetHostView::DidCreateNewRendererCompositorFrameSink(
viz::mojom::CompositorFrameSinkClient* renderer_compositor_frame_sink) {
renderer_compositor_frame_sink_ = renderer_compositor_frame_sink;
#if defined(OS_MACOSX)
browser_compositor_->DidCreateNewRendererCompositorFrameSink(
renderer_compositor_frame_sink_);
#else
if (GetDelegatedFrameHost()) {
GetDelegatedFrameHost()->DidCreateNewRendererCompositorFrameSink(
renderer_compositor_frame_sink_);
}
#endif
}
void OffScreenRenderWidgetHostView::SubmitCompositorFrame(
const viz::LocalSurfaceId& local_surface_id,
viz::CompositorFrame frame,
base::Optional<viz::HitTestRegionList> hit_test_region_list) {
#if defined(OS_MACOSX)
last_frame_root_background_color_ = frame.metadata.root_background_color;
#endif
if (frame.metadata.root_scroll_offset != last_scroll_offset_) {
last_scroll_offset_ = frame.metadata.root_scroll_offset;
}
if (!frame.render_pass_list.empty()) {
if (software_output_device_) {
if (!begin_frame_timer_.get() || IsPopupWidget()) {
software_output_device_->SetActive(painting_, false);
}
// The compositor will draw directly to the SoftwareOutputDevice which
// then calls OnPaint.
// We would normally call BrowserCompositorMac::SubmitCompositorFrame on
// macOS, however it contains compositor resize logic that we don't want.
// Consequently we instead call the SubmitCompositorFrame method directly.
GetDelegatedFrameHost()->SubmitCompositorFrame(
local_surface_id, std::move(frame), std::move(hit_test_region_list));
} else {
if (!copy_frame_generator_.get()) {
copy_frame_generator_.reset(
new AtomCopyFrameGenerator(this, frame_rate_threshold_us_));
}
// Determine the damage rectangle for the current frame. This is the same
// calculation that SwapDelegatedFrame uses.
viz::RenderPass* root_pass = frame.render_pass_list.back().get();
gfx::Size frame_size = root_pass->output_rect.size();
gfx::Rect damage_rect =
gfx::ToEnclosingRect(gfx::RectF(root_pass->damage_rect));
damage_rect.Intersect(gfx::Rect(frame_size));
// We would normally call BrowserCompositorMac::SubmitCompositorFrame on
// macOS, however it contains compositor resize logic that we don't want.
// Consequently we instead call the SubmitCompositorFrame method directly.
GetDelegatedFrameHost()->SubmitCompositorFrame(
local_surface_id, std::move(frame), std::move(hit_test_region_list));
// Request a copy of the last compositor frame which will eventually call
// OnPaint asynchronously.
copy_frame_generator_->GenerateCopyFrame(damage_rect);
}
}
}
void OffScreenRenderWidgetHostView::ClearCompositorFrame() {
NOTREACHED();
}
void OffScreenRenderWidgetHostView::ResetFallbackToFirstNavigationSurface() {
GetDelegatedFrameHost()->ResetFallbackToFirstNavigationSurface();
}
void OffScreenRenderWidgetHostView::InitAsPopup(
content::RenderWidgetHostView* parent_host_view,
const gfx::Rect& pos) {
DCHECK_EQ(parent_host_view_, parent_host_view);
if (parent_host_view_->popup_host_view_) {
parent_host_view_->popup_host_view_->CancelWidget();
}
parent_host_view_->set_popup_host_view(this);
parent_host_view_->popup_bitmap_.reset(new SkBitmap);
parent_callback_ =
base::Bind(&OffScreenRenderWidgetHostView::OnPopupPaint,
parent_host_view_->weak_ptr_factory_.GetWeakPtr());
popup_position_ = pos;
ResizeRootLayer(false);
Show();
}
void OffScreenRenderWidgetHostView::InitAsFullscreen(
content::RenderWidgetHostView*) {}
void OffScreenRenderWidgetHostView::UpdateCursor(const content::WebCursor&) {}
content::CursorManager* OffScreenRenderWidgetHostView::GetCursorManager() {
return cursor_manager_.get();
}
void OffScreenRenderWidgetHostView::SetIsLoading(bool loading) {}
void OffScreenRenderWidgetHostView::TextInputStateChanged(
const content::TextInputState& params) {}
void OffScreenRenderWidgetHostView::ImeCancelComposition() {}
void OffScreenRenderWidgetHostView::RenderProcessGone(base::TerminationStatus,
int) {
Destroy();
}
void OffScreenRenderWidgetHostView::Destroy() {
if (!is_destroyed_) {
is_destroyed_ = true;
if (parent_host_view_ != NULL) {
CancelWidget();
} else {
if (popup_host_view_)
popup_host_view_->CancelWidget();
popup_bitmap_.reset();
if (child_host_view_)
child_host_view_->CancelWidget();
if (!guest_host_views_.empty()) {
// Guest RWHVs will be destroyed when the associated RWHVGuest is
// destroyed. This parent RWHV may be destroyed first, so disassociate
// the guest RWHVs here without destroying them.
for (auto* guest_host_view : guest_host_views_)
guest_host_view->parent_host_view_ = nullptr;
guest_host_views_.clear();
}
for (auto* proxy_view : proxy_views_)
proxy_view->RemoveObserver();
Hide();
}
}
delete this;
}
void OffScreenRenderWidgetHostView::SetTooltipText(const base::string16&) {}
uint32_t OffScreenRenderWidgetHostView::GetCaptureSequenceNumber() const {
return latest_capture_sequence_number_;
}
void OffScreenRenderWidgetHostView::CopyFromSurface(
const gfx::Rect& src_rect,
const gfx::Size& output_size,
base::OnceCallback<void(const SkBitmap&)> callback) {
GetDelegatedFrameHost()->CopyFromCompositingSurface(src_rect, output_size,
std::move(callback));
}
void OffScreenRenderWidgetHostView::GetScreenInfo(
content::ScreenInfo* screen_info) const {
screen_info->depth = 24;
screen_info->depth_per_component = 8;
screen_info->orientation_angle = 0;
screen_info->device_scale_factor = current_device_scale_factor_;
screen_info->orientation_type =
content::SCREEN_ORIENTATION_VALUES_LANDSCAPE_PRIMARY;
screen_info->rect = gfx::Rect(size_);
screen_info->available_rect = gfx::Rect(size_);
}
void OffScreenRenderWidgetHostView::InitAsGuest(
content::RenderWidgetHostView* parent_host_view,
content::RenderWidgetHostViewGuest* guest_view) {
parent_host_view_->AddGuestHostView(this);
}
void OffScreenRenderWidgetHostView::TransformPointToRootSurface(
gfx::PointF* point) {}
gfx::Rect OffScreenRenderWidgetHostView::GetBoundsInRootWindow() {
return gfx::Rect(size_);
}
viz::SurfaceId OffScreenRenderWidgetHostView::GetCurrentSurfaceId() const {
return GetDelegatedFrameHost()
? GetDelegatedFrameHost()->GetCurrentSurfaceId()
: viz::SurfaceId();
}
void OffScreenRenderWidgetHostView::ImeCompositionRangeChanged(
const gfx::Range&,
const std::vector<gfx::Rect>&) {}
gfx::Size OffScreenRenderWidgetHostView::GetCompositorViewportPixelSize()
const {
return gfx::ScaleToCeiledSize(GetRequestedRendererSize(),
current_device_scale_factor_);
}
content::RenderWidgetHostViewBase*
OffScreenRenderWidgetHostView::CreateViewForWidget(
content::RenderWidgetHost* render_widget_host,
content::RenderWidgetHost* embedder_render_widget_host,
content::WebContentsView* web_contents_view) {
if (render_widget_host->GetView()) {
return static_cast<content::RenderWidgetHostViewBase*>(
render_widget_host->GetView());
}
OffScreenRenderWidgetHostView* embedder_host_view = nullptr;
if (embedder_render_widget_host) {
embedder_host_view = static_cast<OffScreenRenderWidgetHostView*>(
embedder_render_widget_host->GetView());
}
return new OffScreenRenderWidgetHostView(
transparent_, true, embedder_host_view->GetFrameRate(), callback_,
render_widget_host, embedder_host_view, size());
}
const viz::FrameSinkId& OffScreenRenderWidgetHostView::GetFrameSinkId() const {
return GetDelegatedFrameHost()->frame_sink_id();
}
void OffScreenRenderWidgetHostView::DidNavigate() {
ResizeRootLayer(true);
#if defined(OS_MACOSX)
browser_compositor_->DidNavigate();
#else
if (delegated_frame_host_)
delegated_frame_host_->DidNavigate();
#endif
}
bool OffScreenRenderWidgetHostView::TransformPointToLocalCoordSpaceLegacy(
const gfx::PointF& point,
const viz::SurfaceId& original_surface,
gfx::PointF* transformed_point) {
// Transformations use physical pixels rather than DIP, so conversion
// is necessary.
gfx::PointF point_in_pixels =
gfx::ConvertPointToPixel(current_device_scale_factor_, point);
if (!GetDelegatedFrameHost()->TransformPointToLocalCoordSpaceLegacy(
point_in_pixels, original_surface, transformed_point)) {
return false;
}
*transformed_point =
gfx::ConvertPointToDIP(current_device_scale_factor_, *transformed_point);
return true;
}
bool OffScreenRenderWidgetHostView::TransformPointToCoordSpaceForView(
const gfx::PointF& point,
RenderWidgetHostViewBase* target_view,
gfx::PointF* transformed_point,
viz::EventSource source) {
if (target_view == this) {
*transformed_point = point;
return true;
}
return false;
}
void OffScreenRenderWidgetHostView::CancelWidget() {
if (render_widget_host_)
render_widget_host_->LostCapture();
Hide();
if (parent_host_view_) {
if (parent_host_view_->popup_host_view_ == this) {
parent_host_view_->set_popup_host_view(NULL);
parent_host_view_->popup_bitmap_.reset();
} else if (parent_host_view_->child_host_view_ == this) {
parent_host_view_->set_child_host_view(NULL);
parent_host_view_->Show();
} else {
parent_host_view_->RemoveGuestHostView(this);
}
parent_host_view_ = NULL;
}
if (render_widget_host_ && !is_destroyed_) {
is_destroyed_ = true;
// Results in a call to Destroy().
render_widget_host_->ShutdownAndDestroyWidget(true);
}
}
void OffScreenRenderWidgetHostView::AddGuestHostView(
OffScreenRenderWidgetHostView* guest_host) {
guest_host_views_.insert(guest_host);
}
void OffScreenRenderWidgetHostView::RemoveGuestHostView(
OffScreenRenderWidgetHostView* guest_host) {
guest_host_views_.erase(guest_host);
}
void OffScreenRenderWidgetHostView::AddViewProxy(OffscreenViewProxy* proxy) {
proxy->SetObserver(this);
proxy_views_.insert(proxy);
}
void OffScreenRenderWidgetHostView::RemoveViewProxy(OffscreenViewProxy* proxy) {
proxy->RemoveObserver();
proxy_views_.erase(proxy);
}
void OffScreenRenderWidgetHostView::ProxyViewDestroyed(
OffscreenViewProxy* proxy) {
proxy_views_.erase(proxy);
Invalidate();
}
std::unique_ptr<viz::SoftwareOutputDevice>
OffScreenRenderWidgetHostView::CreateSoftwareOutputDevice(
ui::Compositor* compositor) {
DCHECK_EQ(GetCompositor(), compositor);
DCHECK(!copy_frame_generator_);
DCHECK(!software_output_device_);
ResizeRootLayer(false);
software_output_device_ = new OffScreenOutputDevice(
transparent_, base::Bind(&OffScreenRenderWidgetHostView::OnPaint,
weak_ptr_factory_.GetWeakPtr()));
return base::WrapUnique(software_output_device_);
}
bool OffScreenRenderWidgetHostView::InstallTransparency() {
if (transparent_) {
SetBackgroundColor(SkColor());
#if defined(OS_MACOSX)
browser_compositor_->SetBackgroundColor(SK_ColorTRANSPARENT);
#else
compositor_->SetBackgroundColor(SK_ColorTRANSPARENT);
#endif
return true;
}
return false;
}
void OffScreenRenderWidgetHostView::SetNeedsBeginFrames(
bool needs_begin_frames) {
SetupFrameRate(true);
begin_frame_timer_->SetActive(needs_begin_frames);
if (software_output_device_) {
software_output_device_->SetActive(painting_, false);
}
}
void OffScreenRenderWidgetHostView::SetWantsAnimateOnlyBeginFrames() {
if (GetDelegatedFrameHost()) {
GetDelegatedFrameHost()->SetWantsAnimateOnlyBeginFrames();
}
}
void OffScreenRenderWidgetHostView::OnPaint(const gfx::Rect& damage_rect,
const SkBitmap& bitmap) {
HoldResize();
if (parent_callback_) {
parent_callback_.Run(damage_rect, bitmap);
} else {
gfx::Rect damage(damage_rect);
gfx::Size size_in_pixels = gfx::ConvertSizeToPixel(
current_device_scale_factor_, GetViewBounds().size());
SkBitmap backing;
backing.allocN32Pixels(size_in_pixels.width(), size_in_pixels.height(),
false);
SkCanvas canvas(backing);
canvas.writePixels(bitmap, 0, 0);
if (popup_host_view_ && popup_bitmap_.get()) {
gfx::Rect rect = popup_host_view_->popup_position_;
gfx::Point origin_in_pixels =
gfx::ConvertPointToPixel(current_device_scale_factor_, rect.origin());
damage.Union(rect);
canvas.writePixels(*popup_bitmap_.get(), origin_in_pixels.x(),
origin_in_pixels.y());
}
for (auto* proxy_view : proxy_views_) {
gfx::Rect rect = proxy_view->GetBounds();
gfx::Point origin_in_pixels =
gfx::ConvertPointToPixel(current_device_scale_factor_, rect.origin());
damage.Union(rect);
canvas.writePixels(*proxy_view->GetBitmap(), origin_in_pixels.x(),
origin_in_pixels.y());
}
damage.Intersect(GetViewBounds());
paint_callback_running_ = true;
callback_.Run(damage, backing);
paint_callback_running_ = false;
}
ReleaseResize();
}
void OffScreenRenderWidgetHostView::OnPopupPaint(const gfx::Rect& damage_rect,
const SkBitmap& bitmap) {
if (popup_host_view_ && popup_bitmap_.get())
popup_bitmap_.reset(new SkBitmap(bitmap));
InvalidateBounds(popup_host_view_->popup_position_);
}
void OffScreenRenderWidgetHostView::OnProxyViewPaint(
const gfx::Rect& damage_rect) {
InvalidateBounds(damage_rect);
}
void OffScreenRenderWidgetHostView::HoldResize() {
if (!hold_resize_)
hold_resize_ = true;
}
void OffScreenRenderWidgetHostView::ReleaseResize() {