content/browser/renderer_host/compositor_resize_lock_aura.h

   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_RENDERER_HOST_COMPOSITOR_RESIZE_LOCK_AURA_H_
   6 #define CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_RESIZE_LOCK_AURA_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "base/time/time.h"
  11 #include "content/browser/compositor/resize_lock.h"
  12
  13 namespace aura {
  14 class WindowTreeHost;
  15 }
  16 namespace ui {
  17 class CompositorLock;
  18 }
  19
  20 namespace content {
  21
  22 // Used to prevent further resizes while a resize is pending.
  23 class CompositorResizeLock : public ResizeLock {
  24  public:
  25   CompositorResizeLock(aura::WindowTreeHost* host,
  26                        const gfx::Size new_size,
  27                        bool defer_compositor_lock,
  28                        const base::TimeDelta& timeout);
  29   ~CompositorResizeLock() override;
  30
  31   bool GrabDeferredLock() override;
  32   void UnlockCompositor() override;
  33
  34  protected:
  35   void LockCompositor() override;
  36   void CancelLock();
  37
  38  private:
  39   aura::WindowTreeHost* host_;
  40   scoped_refptr<ui::CompositorLock> compositor_lock_;
  41   bool cancelled_;
  42
  43   base::WeakPtrFactory<CompositorResizeLock> weak_ptr_factory_;
  44
  45   DISALLOW_COPY_AND_ASSIGN(CompositorResizeLock);
  46 };
  47
  48 }  // namespace content
  49
  50 #endif  // CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_RESIZE_LOCK_AURA_H_