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/*
* Copyright (C) 2016 Apple 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
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* 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.
*/
class StartSupport extends MediaControllerSupport
{
constructor(mediaController)
{
super(mediaController);
this._updateShowsStartButton();
}
// Protected
get mediaEvents()
{
return ["loadedmetadata", "play", "error", this.mediaController.fullscreenChangeEventType];
}
enable()
{
super.enable();
this._updateShowsStartButton();
this.mediaController.shadowRoot.addEventListener("fullscreenchange", this, true);
}
disable()
{
super.disable();
this.mediaController.shadowRoot.removeEventListener("fullscreenchange", this, true);
}
buttonWasPressed(control)
{
this.mediaController.media.play();
}
handleEvent(event)
{
super.handleEvent(event);
this._updateShowsStartButton();
}
// Private
_updateShowsStartButton()
{
this.mediaController.controls.showsStartButton = this._shouldShowStartButton();
}
_shouldShowStartButton()
{
const media = this.mediaController.media;
const host = this.mediaController.host;
if (host && host.shouldForceControlsDisplay)
return true;
if (this.mediaController.hasPlayed)
return false;
if (!media.paused)
return false;
if (media.autoplay)
return false;
if (media instanceof HTMLAudioElement)
return false;
if (this.mediaController.isFullscreen)
return false;
if (media.error)
return false;
if (!media.controls && host && host.allowsInlineMediaPlayback)
return false;
return true;
}
}
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