New media playback UI.

Source/core/html/shadow/MediaControls.h

 /*
  * Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 49 matching lines @@
     void changedClosedCaptionsVisibility();
     void refreshClosedCaptionsButtonVisibility();
 
     void enteredFullscreen();
     void exitedFullscreen();
 
     void startedCasting();
     void stoppedCasting();
     void refreshCastButtonVisibility();
     void showOverlayCastButton();
+    // Update cast button visibility, but don't try to update our panel
+    // button visibility for space.
+    void refreshCastButtonVisibilityWithoutUpdate();
+
+    void setAllowHiddenVolumeControls(bool);
 
     void mediaElementFocused();
 
     // Returns the layout object for the part of the controls that should be
     // used for overlap checking during text track layout. May be null.
     LayoutObject* layoutObjectForTextTrackLayout();
 
+    // Notify us that our controls enclosure has changed width.
+    void notifyPanelWidthChanged(const LayoutUnit& newWidth);
+
     DECLARE_VIRTUAL_TRACE();
 
 private:
+    class BatchedControlUpdate;
+
     explicit MediaControls(HTMLMediaElement&);
 
     void initializeControls();
 
     void makeOpaque();
     void makeTransparent();
 
     void updatePlayState();
 
     enum HideBehaviorFlags {
         IgnoreNone = 0,
         IgnoreVideoHover = 1 << 0,
         IgnoreFocus = 1 << 1,
         IgnoreControlsHover = 1 << 2
     };
 
     bool shouldHideMediaControls(unsigned behaviorFlags = 0) const;
     void hideMediaControlsTimerFired(Timer<MediaControls>*);
     void startHideMediaControlsTimer();
     void stopHideMediaControlsTimer();
     void resetHideMediaControlsTimer();
 
     // Attempts to show the overlay cast button. If it is covered by another
     // element in the page, it will be hidden.
     void tryShowOverlayCastButton();
 
+    void panelWidthChangedTimerFired(Timer<MediaControls>*);
+
+    // Hide elements that don't fit, and show those things that we want which
+    // do fit.  This requires that m_panelWidth is current.
+    void computeWhichControlsFit();
+
     // Node
     bool isMediaControls() const override { return true; }
     bool willRespondToMouseMoveEvents() override { return true; }
     void defaultEventHandler(Event*) override;
     bool containsRelatedTarget(Event*);
 
     RawPtrWillBeMember<HTMLMediaElement> m_mediaElement;
 
     // Media control elements.
     RawPtrWillBeMember<MediaControlOverlayEnclosureElement> m_overlayEnclosure;
     RawPtrWillBeMember<MediaControlOverlayPlayButtonElement> m_overlayPlayButton;
     RawPtrWillBeMember<MediaControlCastButtonElement> m_overlayCastButton;
     RawPtrWillBeMember<MediaControlPanelEnclosureElement> m_enclosure;
     RawPtrWillBeMember<MediaControlPanelElement> m_panel;
     RawPtrWillBeMember<MediaControlPlayButtonElement> m_playButton;
     RawPtrWillBeMember<MediaControlTimelineElement> m_timeline;
     RawPtrWillBeMember<MediaControlCurrentTimeDisplayElement> m_currentTimeDisplay;
     RawPtrWillBeMember<MediaControlTimeRemainingDisplayElement> m_durationDisplay;
     RawPtrWillBeMember<MediaControlMuteButtonElement> m_muteButton;
     RawPtrWillBeMember<MediaControlVolumeSliderElement> m_volumeSlider;
     RawPtrWillBeMember<MediaControlToggleClosedCaptionsButtonElement> m_toggleClosedCaptionsButton;
     RawPtrWillBeMember<MediaControlCastButtonElement> m_castButton;
     RawPtrWillBeMember<MediaControlFullscreenButtonElement> m_fullScreenButton;
 
     Timer<MediaControls> m_hideMediaControlsTimer;
     unsigned m_hideTimerBehaviorFlags;
     bool m_isMouseOverControls : 1;
     bool m_isPausedForScrubbing : 1;
+
+    Timer<MediaControls> m_panelWidthChangedTimer;
+    int m_panelWidth;
+
+    bool m_allowHiddenVolumeControls : 1;
+    bool m_keepMuteButton : 1;
 };
 
 DEFINE_ELEMENT_TYPE_CASTS(MediaControls, isMediaControls());
 
 }
 
 #endif