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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CONTENT_BROWSER_COMPOSITOR_BROWSER_COMPOSITOR_VIEW_MAC_H_ | |
| 6 #define CONTENT_BROWSER_COMPOSITOR_BROWSER_COMPOSITOR_VIEW_MAC_H_ | |
| 7 | |
| 8 #include "base/macros.h" | |
| 9 #include "ui/accelerated_widget_mac/accelerated_widget_mac.h" | |
| 10 #include "ui/compositor/compositor.h" | |
| 11 #include "ui/compositor/compositor_observer.h" | |
| 12 | |
| 13 namespace content { | |
| 14 | |
| 15 // A ui::Compositor and a gfx::AcceleratedWidget (and helper) that it draws | |
| 16 // into. This structure is used to efficiently recycle these structures across | |
| 17 // tabs (because creating a new ui::Compositor for each tab would be expensive | |
| 18 // in terms of time and resources). | |
| 19 class BrowserCompositorMac : public ui::CompositorObserver { | |
| 20 public: | |
| 21 virtual ~BrowserCompositorMac(); | |
| 22 | |
| 23 // Create a compositor, or recycle a preexisting one. | |
| 24 static scoped_ptr<BrowserCompositorMac> Create(); | |
| 25 | |
| 26 // Delete a compositor, or allow it to be recycled. | |
| 27 static void Recycle(scoped_ptr<BrowserCompositorMac> compositor); | |
| 28 | |
| 29 // Indicate that the recyclable compositor should be destroyed, and no future | |
| 30 // compositors should be recycled. | |
| 31 static void DisableRecyclingForShutdown(); | |
| 32 | |
| 33 ui::Compositor* compositor() { return &compositor_; } | |
| 34 ui::AcceleratedWidgetMac* accelerated_widget_mac() { | |
| 35 return accelerated_widget_mac_.get(); | |
| 36 } | |
| 37 | |
| 38 // Suspend will prevent the compositor from producing new frames. This should | |
| 39 // be called to avoid creating spurious frames while changing state. | |
| 40 // Compositors are created as suspended. | |
| 41 void Suspend(); | |
| 42 void Unsuspend(); | |
| 43 | |
| 44 private: | |
| 45 BrowserCompositorMac(); | |
| 46 | |
| 47 // ui::CompositorObserver implementation: | |
| 48 void OnCompositingDidCommit(ui::Compositor* compositor) override; | |
| 49 void OnCompositingStarted(ui::Compositor* compositor, | |
| 50 base::TimeTicks start_time) override {} | |
| 51 void OnCompositingEnded(ui::Compositor* compositor) override {} | |
| 52 void OnCompositingAborted(ui::Compositor* compositor) override {} | |
| 53 void OnCompositingLockStateChanged(ui::Compositor* compositor) override {} | |
| 54 void OnCompositingShuttingDown(ui::Compositor* compositor) override {} | |
| 55 | |
| 56 scoped_ptr<ui::AcceleratedWidgetMac> accelerated_widget_mac_; | |
| 57 ui::Compositor compositor_; | |
| 58 scoped_refptr<ui::CompositorLock> compositor_suspended_lock_; | |
| 59 | |
| 60 DISALLOW_COPY_AND_ASSIGN(BrowserCompositorMac); | |
| 61 }; | |
| 62 | |
| 63 // A class to keep around whenever a BrowserCompositorMac may be created. | |
| 64 // While at least one instance of this class exists, a spare | |
| 65 // BrowserCompositorViewCocoa will be kept around to be recycled so that the | |
| 66 // next BrowserCompositorMac to be created will be be created quickly. | |
| 67 class BrowserCompositorMacPlaceholder { | |
| 68 public: | |
| 69 BrowserCompositorMacPlaceholder(); | |
| 70 ~BrowserCompositorMacPlaceholder(); | |
| 71 | |
| 72 private: | |
| 73 DISALLOW_COPY_AND_ASSIGN(BrowserCompositorMacPlaceholder); | |
| 74 }; | |
| 75 | |
| 76 } // namespace content | |
| 77 | |
| 78 #endif // CONTENT_BROWSER_COMPOSITOR_BROWSER_COMPOSITOR_VIEW_MAC_H_ | |
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Chromium Code Reviews
Issue 1841153002:
BrowserCompositorMac, ResizeLock, DelegatedFrameHost => content/browser/renderer_host (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master