cef/libcef/browser/osr/render_widget_host_view_osr...

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// Copyright (c) 2014 The Chromium Embedded Framework Authors.
// Portions 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 "libcef/browser/osr/render_widget_host_view_osr.h"
#include <algorithm>
#include <limits>
#include <utility>
#import <Cocoa/Cocoa.h>
#include "libcef/browser/browser_host_impl.h"
#include "base/compiler_specific.h"
#include "base/strings/utf_string_conversions.h"
#include "content/common/view_messages.h"
#include "ui/accelerated_widget_mac/accelerated_widget_mac.h"
class MacHelper :
public content::BrowserCompositorMacClient,
public ui::AcceleratedWidgetMacNSView {
public:
explicit MacHelper(CefRenderWidgetHostViewOSR* view)
: view_(view) {
}
virtual ~MacHelper() {}
// BrowserCompositorMacClient methods:
NSView* BrowserCompositorMacGetNSView() const override {
// Intentionally return nil so that
// BrowserCompositorMac::DelegatedFrameHostDesiredSizeInDIP uses the layer
// size instead of the NSView size.
return nil;
}
SkColor BrowserCompositorMacGetGutterColor(SkColor color) const override {
// When making an element on the page fullscreen the element's background
// may not match the page's, so use black as the gutter color to avoid
// flashes of brighter colors during the transition.
if (view_->render_widget_host()->delegate() &&
view_->render_widget_host()->delegate()->IsFullscreenForCurrentTab()) {
return SK_ColorBLACK;
}
return color;
}
void BrowserCompositorMacSendBeginFrame(
const cc::BeginFrameArgs& args) override {
view_->render_widget_host()->Send(
new ViewMsg_BeginFrame(view_->render_widget_host()->GetRoutingID(),
args));
}
// AcceleratedWidgetMacNSView methods:
NSView* AcceleratedWidgetGetNSView() const override {
return [view_->window_ contentView];
}
void AcceleratedWidgetGetVSyncParameters(
base::TimeTicks* timebase, base::TimeDelta* interval) const override {
*timebase = base::TimeTicks();
*interval = base::TimeDelta();
}
void AcceleratedWidgetSwapCompleted() override {
}
private:
// Guaranteed to outlive this object.
CefRenderWidgetHostViewOSR* view_;
DISALLOW_COPY_AND_ASSIGN(MacHelper);
};
ui::AcceleratedWidgetMac* CefRenderWidgetHostViewOSR::GetAcceleratedWidgetMac()
const {
if (browser_compositor_)
return browser_compositor_->GetAcceleratedWidgetMac();
return nullptr;
}
void CefRenderWidgetHostViewOSR::SetActive(bool active) {
}
void CefRenderWidgetHostViewOSR::ShowDefinitionForSelection() {
}
bool CefRenderWidgetHostViewOSR::SupportsSpeech() const {
return false;
}
void CefRenderWidgetHostViewOSR::SpeakSelection() {
}
bool CefRenderWidgetHostViewOSR::IsSpeaking() const {
return false;
}
void CefRenderWidgetHostViewOSR::StopSpeaking() {
}
ui::Compositor* CefRenderWidgetHostViewOSR::GetCompositor() const {
return browser_compositor_->GetCompositor();
}
ui::Layer* CefRenderWidgetHostViewOSR::GetRootLayer() const {
return browser_compositor_->GetRootLayer();
}
content::DelegatedFrameHost* CefRenderWidgetHostViewOSR::GetDelegatedFrameHost()
const {
return browser_compositor_->GetDelegatedFrameHost();
}
void CefRenderWidgetHostViewOSR::PlatformCreateCompositorWidget(
bool is_guest_view_hack) {
// Create a borderless non-visible 1x1 window.
window_ = [[NSWindow alloc] initWithContentRect:NSMakeRect(0, 0, 1, 1)
styleMask:NSBorderlessWindowMask
backing:NSBackingStoreBuffered
defer:NO];
// Create a CALayer which is used by BrowserCompositorViewMac for rendering.
background_layer_ = [[[CALayer alloc] init] retain];
[background_layer_ setBackgroundColor:CGColorGetConstantColor(kCGColorClear)];
NSView* content_view = [window_ contentView];
[content_view setLayer:background_layer_];
[content_view setWantsLayer:YES];
mac_helper_ = new MacHelper(this);
browser_compositor_.reset(new content::BrowserCompositorMac(
mac_helper_, mac_helper_, render_widget_host_->is_hidden(), true,
AllocateFrameSinkId(is_guest_view_hack)));
}
void CefRenderWidgetHostViewOSR::PlatformResizeCompositorWidget(const gfx::Size&) {
}
void CefRenderWidgetHostViewOSR::PlatformDestroyCompositorWidget() {
DCHECK(window_);
[window_ close];
window_ = nil;
[background_layer_ release];
background_layer_ = nil;
browser_compositor_.reset();
delete mac_helper_;
mac_helper_ = nullptr;
}