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// Copyright 2019 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.
#include "third_party/blink/renderer/modules/media_controls/media_controls_text_track_manager.h"
#include "third_party/blink/public/strings/grit/blink_strings.h"
#include "third_party/blink/renderer/core/html/media/html_media_element.h"
#include "third_party/blink/renderer/core/html/track/text_track.h"
#include "third_party/blink/renderer/core/html/track/text_track_list.h"
#include "third_party/blink/renderer/platform/text/platform_locale.h"
namespace blink {
MediaControlsTextTrackManager::MediaControlsTextTrackManager(
HTMLMediaElement& media_element)
: media_element_(&media_element) {}
String MediaControlsTextTrackManager::GetTextTrackLabel(
TextTrack* track) const {
if (!track) {
return media_element_->GetLocale().QueryString(IDS_MEDIA_TRACKS_OFF);
}
String track_label = track->label();
if (track_label.IsEmpty())
track_label = track->language();
if (track_label.IsEmpty()) {
track_label = String(media_element_->GetLocale().QueryString(
IDS_MEDIA_TRACKS_NO_LABEL, String::Number(track->TrackIndex() + 1)));
}
return track_label;
}
void MediaControlsTextTrackManager::ShowTextTrackAtIndex(
unsigned index_to_enable) {
TextTrackList* track_list = media_element_->textTracks();
if (index_to_enable >= track_list->length())
return;
TextTrack* track = track_list->AnonymousIndexedGetter(index_to_enable);
if (track && track->CanBeRendered())
track->setMode(TextTrack::ShowingKeyword());
}
void MediaControlsTextTrackManager::DisableShowingTextTracks() {
TextTrackList* track_list = media_element_->textTracks();
for (unsigned i = 0; i < track_list->length(); ++i) {
TextTrack* track = track_list->AnonymousIndexedGetter(i);
if (track->mode() == TextTrack::ShowingKeyword())
track->setMode(TextTrack::DisabledKeyword());
}
}
void MediaControlsTextTrackManager::Trace(Visitor* visitor) const {
visitor->Trace(media_element_);
}
} // namespace blink
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