third_party/WebKit/Source/web/FullscreenController.h

   1 /*
   2  * Copyright (C) 2013 Google Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  *     * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *     * Redistributions in binary form must reproduce the above
  11  * copyright notice, this list of conditions and the following disclaimer
  12  * in the documentation and/or other materials provided with the
  13  * distribution.
  14  *     * Neither the name of Google Inc. nor the names of its
  15  * contributors may be used to endorse or promote products derived from
  16  * this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #ifndef FullscreenController_h
  32 #define FullscreenController_h
  33
  34 #include "core/layout/LayoutFullScreen.h"
  35 #include "platform/geometry/FloatPoint.h"
  36 #include "platform/geometry/IntSize.h"
  37 #include "platform/heap/Handle.h"
  38 #include "wtf/PassOwnPtr.h"
  39 #include "wtf/RefPtr.h"
  40
  41 namespace blink {
  42
  43 class Element;
  44 class LocalFrame;
  45 class WebViewImpl;
  46
  47 class FullscreenController final : public NoBaseWillBeGarbageCollected<FullscreenController> {
  48 public:
  49     static PassOwnPtrWillBeRawPtr<FullscreenController> create(WebViewImpl*);
  50
  51     void didEnterFullScreen();
  52     void didExitFullScreen();
  53
  54     void enterFullScreenForElement(Element*);
  55     void exitFullScreenForElement(Element*);
  56
  57     bool isFullscreen() { return m_fullScreenFrame; }
  58
  59     void updateSize();
  60
  61     DECLARE_TRACE();
  62
  63 protected:
  64     explicit FullscreenController(WebViewImpl*);
  65
  66 private:
  67     void updatePageScaleConstraints(bool removeConstraints);
  68
  69     WebViewImpl* m_webViewImpl;
  70
  71     float m_exitFullscreenPageScaleFactor;
  72     IntSize m_exitFullscreenScrollOffset;
  73     FloatPoint m_exitFullscreenVisualViewportOffset;
  74
  75     // If set, the WebView is transitioning to fullscreen for this element.
  76     RefPtrWillBeMember<Element> m_provisionalFullScreenElement;
  77
  78     // If set, the WebView is in fullscreen mode for an element in this frame.
  79     RefPtrWillBeMember<LocalFrame> m_fullScreenFrame;
  80
  81     bool m_isCancelingFullScreen;
  82 };
  83
  84 } // namespace blink
  85
  86 #endif