New media playback UI.

Source/core/html/shadow/MediaControlElementTypes.cpp

 /*
  * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 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.
@@ skipping 53 matching lines @@
     HTMLElement* element = toHTMLElement(node);
     if (isHTMLInputElement(*element))
         return static_cast<MediaControlInputElement*>(element)->displayType();
     return static_cast<MediaControlDivElement*>(element)->displayType();
 }
 
 MediaControlElement::MediaControlElement(MediaControls& mediaControls, MediaControlElementType displayType, HTMLElement* element)
     : m_mediaControls(mediaControls)
     , m_displayType(displayType)
     , m_element(element)
+    , m_isShown(true)
+    , m_isWanted(true)
+    , m_doesFit(true)
 {
 }
 
 HTMLMediaElement& MediaControlElement::mediaElement() const
 {
     return mediaControls().mediaElement();
 }
 
 void MediaControlElement::hide()
 {
     m_element->setInlineStyleProperty(CSSPropertyDisplay, CSSValueNone);
+    m_isShown = false;
 }
 
 void MediaControlElement::show()
 {
     m_element->removeInlineStyleProperty(CSSPropertyDisplay);
+    m_isShown = true;
+}
+
+bool MediaControlElement::isShown()
+{
+    return m_isShown;
+}
+
+void MediaControlElement::updateShownState()
+{
+    if (m_isWanted && m_doesFit)
+        show();
+    else
+        hide();
+}
+
+void MediaControlElement::setDoesFit(bool fits)
+{
+    m_doesFit = fits;
+    updateShownState();
+}
+
+void MediaControlElement::setIsWanted(bool wanted)
+{
+    m_isWanted = wanted;
+    updateShownState();
+}
+
+bool MediaControlElement::isWanted()
+{
+    return m_isWanted;
+}
+
+int MediaControlElement::minimumWidth()
+{
+    // We could check the computed style here, but that depends on whether
+    // we've been shown.  Instead, we just assume 48 except for the
+    // timeline bar.
+    if (m_displayType == MediaSlider)
+        return 55;
+
+    return 48;
 }
 
 void MediaControlElement::setDisplayType(MediaControlElementType displayType)
 {
     if (displayType == m_displayType)
         return;
 
     m_displayType = displayType;
     if (LayoutObject* object = m_element->layoutObject())
         object->setShouldDoFullPaintInvalidation();
@@ skipping 44 matching lines @@
     , m_currentValue(0)
 {
 }
 
 void MediaControlTimeDisplayElement::setCurrentValue(double time)
 {
     m_currentValue = time;
 }
 
 } // namespace blink