content/browser/aura/compositor_resize_lock.h

   1 // Copyright 2013 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_AURA_RESIZE_LOCK_AURA_H_
   6 #define CONTENT_BROWSER_AURA_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/aura/resize_lock.h"
  12
  13 namespace aura { class RootWindow; }
  14
  15 namespace ui { class CompositorLock; }
  16
  17 namespace content {
  18
  19 // Used to prevent further resizes while a resize is pending.
  20 class CompositorResizeLock : public ResizeLock {
  21  public:
  22   CompositorResizeLock(aura::RootWindow* root_window,
  23                  const gfx::Size new_size,
  24                  bool defer_compositor_lock,
  25                  const base::TimeDelta& timeout);
  26   virtual ~CompositorResizeLock();
  27
  28   virtual bool GrabDeferredLock() OVERRIDE;
  29   virtual void UnlockCompositor() OVERRIDE;
  30
  31  protected:
  32   virtual void LockCompositor() OVERRIDE;
  33   void CancelLock();
  34
  35  private:
  36   aura::RootWindow* root_window_;
  37   scoped_refptr<ui::CompositorLock> compositor_lock_;
  38   base::WeakPtrFactory<CompositorResizeLock> weak_ptr_factory_;
  39   bool cancelled_;
  40
  41   DISALLOW_COPY_AND_ASSIGN(CompositorResizeLock);
  42 };
  43
  44 }  // namespace content
  45
  46 #endif  // CONTENT_BROWSER_AURA_RESIZE_LOCK_AURA_H_