content/public/browser/screen_orientation_delegate.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_PUBLIC_BROWSER_SCREEN_ORIENTATION_DELEGATE_H_
   6 #define CONTENT_PUBLIC_BROWSER_SCREEN_ORIENTATION_DELEGATE_H_
   7
   8 #include "base/macros.h"
   9 #include "content/common/content_export.h"
  10 #include "third_party/WebKit/public/platform/WebScreenOrientationLockType.h"
  11
  12 namespace content {
  13
  14 class WebContents;
  15
  16 // Can be implemented to provide platform specific functionality for
  17 // ScreenOrientationProvider.
  18 class CONTENT_EXPORT ScreenOrientationDelegate {
  19  public:
  20   ScreenOrientationDelegate() {};
  21   virtual ~ScreenOrientationDelegate() {}
  22
  23   // Returns true if the tab must be fullscreen in order for
  24   // ScreenOrientationProvider to respond to requests.
  25   virtual bool FullScreenRequired(WebContents* web_contents) = 0;
  26
  27   // Lock display to the given orientation.
  28   virtual void Lock(WebContents* web_contents,
  29                     blink::WebScreenOrientationLockType lock_orientation) = 0;
  30
  31   // Are ScreenOrientationProvider requests currently supported by the platform.
  32   virtual bool ScreenOrientationProviderSupported() = 0;
  33
  34   // Unlocks the display, allowing hardware rotation to resume.
  35   virtual void Unlock(WebContents* web_contents) = 0;
  36
  37  private:
  38   DISALLOW_COPY_AND_ASSIGN(ScreenOrientationDelegate);
  39 };
  40
  41 } // namespace content
  42
  43 #endif  // CONTENT_PUBLIC_BROWSER_SCREEN_ORIENTATION_DELEGATE_H_
  44