153 lines
4.8 KiB
Plaintext
153 lines
4.8 KiB
Plaintext
// Copyright (c) 2014 The Chromium Embedded Framework Authors.
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// Portions copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "libcef/browser/osr/render_widget_host_view_osr.h"
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#include <algorithm>
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#include <limits>
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#include <utility>
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#import <Cocoa/Cocoa.h>
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#include "libcef/browser/browser_host_impl.h"
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#include "base/compiler_specific.h"
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#include "base/strings/utf_string_conversions.h"
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#include "content/common/view_messages.h"
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#include "ui/accelerated_widget_mac/accelerated_widget_mac.h"
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#include "ui/display/screen.h"
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namespace {
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display::Display GetDisplay() {
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// TODO(cef): Get display info from callbacks.
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return display::Screen::GetScreen()->GetDisplayNearestView(nullptr);
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}
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} // namespace
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class MacHelper : public content::BrowserCompositorMacClient,
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public ui::AcceleratedWidgetMacNSView {
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public:
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explicit MacHelper(CefRenderWidgetHostViewOSR* view) : view_(view) {}
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virtual ~MacHelper() {}
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// BrowserCompositorMacClient methods:
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SkColor BrowserCompositorMacGetGutterColor() const override {
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// When making an element on the page fullscreen the element's background
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// may not match the page's, so use black as the gutter color to avoid
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// flashes of brighter colors during the transition.
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if (view_->render_widget_host()->delegate() &&
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view_->render_widget_host()->delegate()->IsFullscreenForCurrentTab()) {
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return SK_ColorBLACK;
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}
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return view_->background_color();
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}
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void BrowserCompositorMacOnBeginFrame(base::TimeTicks frame_time) override {}
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void OnFrameTokenChanged(uint32_t frame_token) override {
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view_->render_widget_host()->DidProcessFrame(frame_token);
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}
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// AcceleratedWidgetMacNSView methods:
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NSView* AcceleratedWidgetGetNSView() const override {
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// Intentionally return nil so that BrowserCompositorMac::GetViewProperties
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// uses the layer size instead of the NSView size.
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return nil;
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}
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void AcceleratedWidgetGetVSyncParameters(
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base::TimeTicks* timebase,
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base::TimeDelta* interval) const override {
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*timebase = base::TimeTicks();
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*interval = base::TimeDelta();
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}
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void AcceleratedWidgetSwapCompleted() override {}
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void DidReceiveFirstFrameAfterNavigation() override {
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view_->render_widget_host()->DidReceiveFirstFrameAfterNavigation();
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}
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void DestroyCompositorForShutdown() override {}
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void WasResized() override { view_->render_widget_host()->WasResized(); }
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private:
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// Guaranteed to outlive this object.
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CefRenderWidgetHostViewOSR* view_;
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DISALLOW_COPY_AND_ASSIGN(MacHelper);
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};
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void CefRenderWidgetHostViewOSR::SetActive(bool active) {}
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void CefRenderWidgetHostViewOSR::ShowDefinitionForSelection() {}
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void CefRenderWidgetHostViewOSR::SpeakSelection() {}
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bool CefRenderWidgetHostViewOSR::ShouldContinueToPauseForFrame() {
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return browser_compositor_->ShouldContinueToPauseForFrame();
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}
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ui::Compositor* CefRenderWidgetHostViewOSR::GetCompositor() const {
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return browser_compositor_->GetCompositor();
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}
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ui::Layer* CefRenderWidgetHostViewOSR::GetRootLayer() const {
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return browser_compositor_->GetRootLayer();
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}
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content::DelegatedFrameHost* CefRenderWidgetHostViewOSR::GetDelegatedFrameHost()
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const {
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return browser_compositor_->GetDelegatedFrameHost();
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}
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bool CefRenderWidgetHostViewOSR::UpdateNSViewAndDisplay() {
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return browser_compositor_->UpdateNSViewAndDisplay(
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GetRootLayer()->bounds().size(), GetDisplay());
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}
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void CefRenderWidgetHostViewOSR::PlatformCreateCompositorWidget(
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bool is_guest_view_hack) {
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// Create a borderless non-visible 1x1 window.
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window_ = [[NSWindow alloc] initWithContentRect:NSMakeRect(0, 0, 1, 1)
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styleMask:NSBorderlessWindowMask
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backing:NSBackingStoreBuffered
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defer:NO];
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// Create a CALayer which is used by BrowserCompositorViewMac for rendering.
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background_layer_ = [[[CALayer alloc] init] retain];
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[background_layer_ setBackgroundColor:CGColorGetConstantColor(kCGColorClear)];
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NSView* content_view = [window_ contentView];
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[content_view setLayer:background_layer_];
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[content_view setWantsLayer:YES];
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mac_helper_ = new MacHelper(this);
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browser_compositor_.reset(new content::BrowserCompositorMac(
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mac_helper_, mac_helper_, render_widget_host_->is_hidden(), true,
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GetDisplay(), AllocateFrameSinkId(is_guest_view_hack)));
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}
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void CefRenderWidgetHostViewOSR::PlatformResizeCompositorWidget(
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const gfx::Size&) {}
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void CefRenderWidgetHostViewOSR::PlatformDestroyCompositorWidget() {
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DCHECK(window_);
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[window_ close];
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window_ = nil;
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[background_layer_ release];
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background_layer_ = nil;
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browser_compositor_.reset();
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delete mac_helper_;
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mac_helper_ = nullptr;
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}
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