Reposition cast button on narrow videos

Source/core/html/shadow/MediaControls.cpp

 /*
  * 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 10 matching lines @@
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/html/shadow/MediaControls.h"
 
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
+#include "core/dom/ClientRect.h"
 #include "core/events/MouseEvent.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLMediaElement.h"
 #include "core/html/MediaController.h"
 #include "core/rendering/RenderTheme.h"
 
 namespace blink {
 
 // If you change this value, then also update the corresponding value in
 // LayoutTests/media/media-controls.js.
@@ skipping 332 matching lines @@
         // The reason for the autoplay test is that some pages (e.g. vimeo.com) have an autoplay background video, which
         // doesn't autoplay on Chrome for Android (we prevent it) so starts paused. In such cases we don't want to automatically
         // show the cast button, since it looks strange and is unlikely to correspond with anything the user wants to do.
         // If a user does want to cast a paused autoplay video then they can still do so by touching or clicking on the
         // video, which will cause the cast button to appear.
         if (!mediaElement().shouldShowControls() && !mediaElement().autoplay() && mediaElement().paused()) {
             showOverlayCastButton();
         } else if (mediaElement().shouldShowControls()) {
             m_overlayCastButton->hide();
             m_castButton->show();
+            // Check that the cast button actually fits on the bar.
+            if (m_fullScreenButton->getBoundingClientRect()->right() > m_panel->getBoundingClientRect()->right()) {
+                m_castButton->hide();
+                m_overlayCastButton->show();
+            }
         }
     } else {
         m_castButton->hide();
         m_overlayCastButton->hide();
     }
 }
 
 void MediaControls::showOverlayCastButton()
 {
     m_overlayCastButton->show();
@@ skipping 49 matching lines @@
             m_isMouseOverControls = false;
             stopHideMediaControlsTimer();
         }
         return;
     }
 
     if (event->type() == EventTypeNames::mousemove) {
         // When we get a mouse move, show the media controls, and start a timer
         // that will hide the media controls after a 3 seconds without a mouse move.
         makeOpaque();
+        refreshCastButtonVisibility();
         if (shouldHideMediaControls(IgnoreVideoHover))
             startHideMediaControlsTimer();
         return;
     }
 }
 
 void MediaControls::hideMediaControlsTimerFired(Timer<MediaControls>*)
 {
     if (mediaElement().togglePlayStateWillPlay())
         return;
@@ skipping 95 matching lines @@
     visitor->trace(m_toggleClosedCaptionsButton);
     visitor->trace(m_fullScreenButton);
     visitor->trace(m_durationDisplay);
     visitor->trace(m_enclosure);
     visitor->trace(m_castButton);
     visitor->trace(m_overlayCastButton);
     HTMLDivElement::trace(visitor);
 }
 
 }