Start separating the text track container from the media controls

Source/core/html/shadow/MediaControlElements.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 22 matching lines @@
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "core/InputTypeNames.h"
 #include "core/dom/DOMTokenList.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/events/MouseEvent.h"
 #include "core/frame/LocalFrame.h"
 #include "core/html/HTMLVideoElement.h"
 #include "core/html/MediaController.h"
 #include "core/html/TimeRanges.h"
 #include "core/html/shadow/MediaControls.h"
-#include "core/html/track/CueTimeline.h"
-#include "core/html/track/TextTrack.h"
-#include "core/html/track/TextTrackCue.h"
-#include "core/html/track/vtt/VTTRegionList.h"
 #include "core/layout/LayoutSlider.h"
-#include "core/layout/LayoutTextTrackContainerElement.h"
 #include "core/layout/LayoutTheme.h"
 #include "core/layout/LayoutVideo.h"
 #include "core/page/EventHandler.h"
 #include "platform/RuntimeEnabledFeatures.h"
 
 namespace blink {
 
 using namespace HTMLNames;
 
 // This is the duration from mediaControls.css
@@ skipping 537 matching lines @@
 {
 }
 
 PassRefPtrWillBeRawPtr<MediaControlCurrentTimeDisplayElement> MediaControlCurrentTimeDisplayElement::create(MediaControls& mediaControls)
 {
     RefPtrWillBeRawPtr<MediaControlCurrentTimeDisplayElement> element = adoptRefWillBeNoop(new MediaControlCurrentTimeDisplayElement(mediaControls));
     element->setShadowPseudoId(AtomicString("-webkit-media-controls-current-time-display", AtomicString::ConstructFromLiteral));
     return element.release();
 }
 
-// ----------------------------
-
-MediaControlTextTrackContainerElement::MediaControlTextTrackContainerElement(MediaControls& mediaControls)
-    : MediaControlDivElement(mediaControls, MediaTextTrackDisplayContainer)
-    , m_fontSize(0)
-{
-}
-
-PassRefPtrWillBeRawPtr<MediaControlTextTrackContainerElement> MediaControlTextTrackContainerElement::create(MediaControls& mediaControls)
-{
-    RefPtrWillBeRawPtr<MediaControlTextTrackContainerElement> element = adoptRefWillBeNoop(new MediaControlTextTrackContainerElement(mediaControls));
-    element->setShadowPseudoId(AtomicString("-webkit-media-text-track-container", AtomicString::ConstructFromLiteral));
-    element->hide();
-    return element.release();
-}
-
-LayoutObject* MediaControlTextTrackContainerElement::createLayoutObject(const LayoutStyle&)
-{
-    return new LayoutTextTrackContainerElement(this);
-}
-
-void MediaControlTextTrackContainerElement::updateDisplay()
-{
-    if (!mediaElement().closedCaptionsVisible()) {
-        removeChildren();
-        return;
-    }
-
-    // 1. If the media element is an audio element, or is another playback
-    // mechanism with no rendering area, abort these steps. There is nothing to
-    // render.
-    if (isHTMLAudioElement(mediaElement()))
-        return;
-
-    // 2. Let video be the media element or other playback mechanism.
-    HTMLVideoElement& video = toHTMLVideoElement(mediaElement());
-
-    // 3. Let output be an empty list of absolutely positioned CSS block boxes.
-
-    // 4. If the user agent is exposing a user interface for video, add to
-    // output one or more completely transparent positioned CSS block boxes that
-    // cover the same region as the user interface.
-
-    // 5. If the last time these rules were run, the user agent was not exposing
-    // a user interface for video, but now it is, let reset be true. Otherwise,
-    // let reset be false.
-
-    // There is nothing to be done explicitly for 4th and 5th steps, as
-    // everything is handled through CSS. The caption box is on top of the
-    // controls box, in a container set with the -webkit-box display property.
-
-    // 6. Let tracks be the subset of video's list of text tracks that have as
-    // their rules for updating the text track rendering these rules for
-    // updating the display of WebVTT text tracks, and whose text track mode is
-    // showing or showing by default.
-    // 7. Let cues be an empty list of text track cues.
-    // 8. For each track track in tracks, append to cues all the cues from
-    // track's list of cues that have their text track cue active flag set.
-    CueList activeCues = video.cueTimeline().currentlyActiveCues();
-
-    // 9. If reset is false, then, for each text track cue cue in cues: if cue's
-    // text track cue display state has a set of CSS boxes, then add those boxes
-    // to output, and remove cue from cues.
-
-    // There is nothing explicitly to be done here, as all the caching occurs
-    // within the TextTrackCue instance itself. If parameters of the cue change,
-    // the display tree is cleared.
-
-    // 10. For each text track cue cue in cues that has not yet had
-    // corresponding CSS boxes added to output, in text track cue order, run the
-    // following substeps:
-    for (size_t i = 0; i < activeCues.size(); ++i) {
-        TextTrackCue* cue = activeCues[i].data();
-
-        ASSERT(cue->isActive());
-        if (!cue->track() || !cue->track()->isRendered() || !cue->isActive())
-            continue;
-
-        cue->updateDisplay(*this);
-    }
-
-    // 11. Return output.
-    if (hasChildren())
-        show();
-    else
-        hide();
-}
-
-void MediaControlTextTrackContainerElement::updateSizes()
-{
-    if (!document().isActive())
-        return;
-
-    IntRect videoBox;
-
-    if (!mediaElement().layoutObject() || !mediaElement().layoutObject()->isVideo())
-        return;
-    videoBox = toLayoutVideo(mediaElement().layoutObject())->videoBox();
-
-    if (m_videoDisplaySize == videoBox)
-        return;
-    m_videoDisplaySize = videoBox;
-
-    float smallestDimension = std::min(m_videoDisplaySize.size().height(), m_videoDisplaySize.size().width());
-
-    float fontSize = smallestDimension * 0.05f;
-    if (fontSize != m_fontSize) {
-        m_fontSize = fontSize;
-        setInlineStyleProperty(CSSPropertyFontSize, fontSize, CSSPrimitiveValue::CSS_PX);
-    }
-}
-
-// ----------------------------
-
 } // namespace blink