[WIP] Re-implement MediaControls in Blink-in-JS

Source/core/html/shadow/MediaControls.idl

Index: Source/core/html/shadow/MediaControls.idl
diff --git a/Source/core/html/shadow/MediaControls.idl b/Source/core/html/shadow/MediaControls.idl
new file mode 100644
index 0000000000000000000000000000000000000000..f61ff6d37d4b0b009189f0d48848928296a1fe97
--- /dev/null
+++ b/Source/core/html/shadow/MediaControls.idl
@@ -0,0 +1,54 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+interface MediaControls : HTMLDivElement {
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void createdCallback(HTMLElement mediaElement);
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void reset();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void show();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void mediaElementFocused();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void hide();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void playbackStarted();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void playbackProgressed();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void playbackStopped();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void beginScrubbing();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void endScrubbing();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void updateCurrentTimeDisplay();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void updateVolume();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void changedClosedCaptionsVisibility();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void refreshClosedCaptionsButtonVisibility();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void closedCaptionTracksChanged();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void enteredFullscreen();
+    [ImplementedInPrivateScript, OnlyExposedToPrivateScript] void exitedFullscreen();
+
+    // Proxy for resource images
+    [OnlyExposedToPrivateScript] DOMString getResourceDataURL(DOMString name);
+
+    // Proxy for document.settings
+    [OnlyExposedToPrivateScript] boolean isOverlayPlayButtonEnabled();
+
+    // Proxy for HTMLMediaElement (, WebMediaPlayer and MediaController)
+    [OnlyExposedToPrivateScript] boolean shouldShowControls();
+    [OnlyExposedToPrivateScript] boolean hasAudio();
+    [OnlyExposedToPrivateScript] boolean hasVideo();
+    [OnlyExposedToPrivateScript] boolean hasClosedCaptions();
+    [OnlyExposedToPrivateScript] boolean togglePlayStateWillPlay();
+    [OnlyExposedToPrivateScript] void togglePlayState();
+    [OnlyExposedToPrivateScript] void setCurrentTime(double time); // Proxy for MediaController
+    [OnlyExposedToPrivateScript] boolean isClosedCaptionsVisible();
+    [OnlyExposedToPrivateScript] void toggleClosedCaptionsVisible();
+    [OnlyExposedToPrivateScript] void toggleFullscreen();
+
+    // Proxy for setDisplayType (these will be needed for AX Object)
+    [OnlyExposedToPrivateScript] void setDivDisplayType(HTMLElement element, unsigned long type);
+    [OnlyExposedToPrivateScript] void setInputDisplayType(HTMLElement element, unsigned long type);
+
+    // Proxy for blink::fullscreenIsSupported
+    [OnlyExposedToPrivateScript] boolean fullscreenIsSupported();
+
+    // Proxy for HTMLMediaElement and RenderVideo
+    [OnlyExposedToPrivateScript] double getTextTrackContainerFontSize();
+
+    // Proxy for HTMLMediaElement, HTMLVideoElement and TextTrackCue
+    [OnlyExposedToPrivateScript] void updateTextTrackContainerDisplay(HTMLElement textTrackContainer);
+};

[hajimehoshi, 2014/08/25 09:16:03]

I added the reasons why these private API are needed so far. IIUC,
HTMLMediaElement, WebMediaPlayer, MediaController are quite difficult to
implement Blink-in-JS. I was wondering if you could advise me how to treat these
APIs...