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fix: update ssa/ass checks, custom track location, offsets

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This commit is contained in:
Ivan Schurawel 2022-11-13 20:22:55 -05:00 • committed by Ivan Schurawel
parent 49bae6b67c
commit abc663f6f6
4 changed files with 65 additions and 40 deletions
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58
src/plugins/htmlVideoPlayer/plugin.js
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@ -225,6 +225,14 @@ function tryRemoveElement(elem) {
* @type {number | undefined}
*/
#currentTrackOffset;
/**
* @type {HTMLElement | null | undefined}
*/
#secondaryTrackOffset;
/**
* @type {number | null | undefined}
*/
#subtitleVerticalPosition;
/**
* @type {HTMLElement | null | undefined}
*/
@ -539,6 +547,7 @@ function tryRemoveElement(elem) {
resetSubtitleOffset() {
this.#currentTrackOffset = 0;
this.#secondaryTrackOffset = 0;
this.#showTrackOffset = false;
}
@ -581,7 +590,7 @@ function tryRemoveElement(elem) {
const trackElements = this.getTextTracks();
// if .vtt currently rendering
if (trackElements.length > 0) {
trackElements.forEach(function (trackElement, index) {
trackElements.forEach((trackElement, index) => {
this.setTextTrackSubtitleOffset(trackElement, offsetValue, index);
});
} else if (this.#currentTrackEvents || this.#currentSecondaryTrackEvents) {
@ -596,24 +605,25 @@ function tryRemoveElement(elem) {
/**
* @private
*/
updateCurrentTrackOffset(offsetValue, currentTrackIndex = 0) {
const skipRelativeOffset = currentTrackIndex !== PRIMARY_TEXT_TRACK_INDEX;
updateCurrentTrackOffset(offsetValue, currentTrackIndex = PRIMARY_TEXT_TRACK_INDEX) {
let offsetToCompare = this.#currentTrackOffset;
if (this.isSecondaryTrack(currentTrackIndex)) {
offsetToCompare = this.#secondaryTrackOffset;
}
let relativeOffset = offsetValue;
const newTrackOffset = offsetValue;
if (this.#currentTrackOffset && !skipRelativeOffset) {
/**
* Only calculate the offset for the first track.
* The offset gets set after this method is first called.
* Subsequent method calls (when playing multiple tracks)
* will have the calculated relative offset cancel out
* and will be `0`
* @example
* first_call: (relativeOffset = -2) -= (this.#currentTrackOffset = -1) -> 1
* second_call: (relativeOffset = -2) -= (this.#currentTrackOffset = -2) -> 0
*/
relativeOffset -= this.#currentTrackOffset;
if (offsetToCompare) {
relativeOffset -= offsetToCompare;
}
this.#currentTrackOffset = newTrackOffset;
if (this.isSecondaryTrack(currentTrackIndex)) {
this.#secondaryTrackOffset = newTrackOffset;
} else {
this.#currentTrackOffset = newTrackOffset;
}
// relative to currentTrackOffset
return relativeOffset;
}
@ -1132,6 +1142,7 @@ function tryRemoveElement(elem) {
this.destroyNativeTracks(videoElement, targetTrackIndex);
this.destroyStoredTrackInfo(targetTrackIndex);
this.#subtitleVerticalPosition = null;
this.#currentClock = null;
this._currentAspectRatio = null;
@ -1322,6 +1333,14 @@ function tryRemoveElement(elem) {
* @private
*/
renderSubtitlesWithCustomElement(videoElement, track, item, targetTextTrackIndex) {
if (this.#subtitleVerticalPosition == null) {
import('../../scripts/settings/userSettings').then((userSettings) => {
const subtitleAppearance = userSettings.getSubtitleAppearanceSettings();
this.#subtitleVerticalPosition = subtitleAppearance.verticalPosition;
this.#subtitleVerticalPosition = parseInt(subtitleAppearance.verticalPosition, 10);
});
}
this.fetchSubtitles(track, item).then((data) => {
if (!this.#videoSubtitlesElem && !this.isSecondaryTrack(targetTextTrackIndex)) {
let subtitlesContainer = document.querySelector('.videoSubtitles');
@ -1341,7 +1360,12 @@ function tryRemoveElement(elem) {
if (!subtitlesContainer) return;
const secondarySubtitlesElement = document.createElement('div');
secondarySubtitlesElement.classList.add('videoSecondarySubtitlesInner');
subtitlesContainer.prepend(secondarySubtitlesElement);
// determine the order of the subtitles
if (this.#subtitleVerticalPosition < 0) {
subtitlesContainer.prepend(secondarySubtitlesElement);
} else {
subtitlesContainer.appendChild(secondarySubtitlesElement);
}
this.#videoSecondarySubtitlesElem = secondarySubtitlesElement;
this.setSubtitleAppearance(subtitlesContainer, this.#videoSecondarySubtitlesElem);
this.#currentSecondaryTrackEvents = data.TrackEvents;