976 lines
31 KiB
JavaScript
976 lines
31 KiB
JavaScript
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class AnnotationParser {
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static get defaultAppearanceAttributes() {
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return {
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bgColor: 0xFFFFFF,
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bgOpacity: 0.80,
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fgColor: 0,
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textSize: 3.15
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};
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}
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static get attributeMap() {
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return {
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type: "tp",
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style: "s",
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x: "x",
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y: "y",
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width: "w",
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height: "h",
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sx: "sx",
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sy: "sy",
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timeStart: "ts",
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timeEnd: "te",
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text: "t",
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actionType: "at",
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actionUrl: "au",
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actionUrlTarget: "aut",
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actionSeconds: "as",
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bgOpacity: "bgo",
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bgColor: "bgc",
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fgColor: "fgc",
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textSize: "txsz"
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};
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}
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/* AR ANNOTATION FORMAT */
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deserializeAnnotation(serializedAnnotation) {
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const map = this.constructor.attributeMap;
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const attributes = serializedAnnotation.split(",");
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const annotation = {};
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for (const attribute of attributes) {
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const [ key, value ] = attribute.split("=");
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const mappedKey = this.getKeyByValue(map, key);
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let finalValue = "";
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if (["text", "actionType", "actionUrl", "actionUrlTarget", "type", "style"].indexOf(mappedKey) > -1) {
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finalValue = decodeURIComponent(value);
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}
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else {
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finalValue = parseFloat(value, 10);
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}
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annotation[mappedKey] = finalValue;
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}
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return annotation;
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}
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serializeAnnotation(annotation) {
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const map = this.constructor.attributeMap;
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let serialized = "";
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for (const key in annotation) {
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const mappedKey = map[key];
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if ((["text", "actionType", "actionUrl", "actionUrlTarget"].indexOf(key) > -1) && mappedKey && annotation.hasOwnProperty(key)) {
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let text = encodeURIComponent(annotation[key]);
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serialized += `${mappedKey}=${text},`;
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}
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else if ((["text", "actionType", "actionUrl", "actionUrlTarget"].indexOf("key") === -1) && mappedKey && annotation.hasOwnProperty(key)) {
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serialized += `${mappedKey}=${annotation[key]},`;
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}
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}
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// remove trailing comma
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return serialized.substring(0, serialized.length - 1);
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}
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deserializeAnnotationList(serializedAnnotationString) {
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const serializedAnnotations = serializedAnnotationString.split(";");
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serializedAnnotations.length = serializedAnnotations.length - 1;
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const annotations = [];
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for (const annotation of serializedAnnotations) {
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annotations.push(this.deserializeAnnotation(annotation));
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}
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return annotations;
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}
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serializeAnnotationList(annotations) {
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let serialized = "";
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for (const annotation of annotations) {
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serialized += this.serializeAnnotation(annotation) + ";";
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}
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return serialized;
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}
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/* PARSING YOUTUBE'S ANNOTATION FORMAT */
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xmlToDom(xml) {
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const parser = new DOMParser();
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const dom = parser.parseFromString(xml, "application/xml");
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return dom;
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}
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getAnnotationsFromXml(xml) {
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const dom = this.xmlToDom(xml);
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return dom.getElementsByTagName("annotation");
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}
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parseYoutubeAnnotationList(annotationElements) {
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const annotations = [];
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for (const el of annotationElements) {
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const parsedAnnotation = this.parseYoutubeAnnotation(el);
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if (parsedAnnotation) annotations.push(parsedAnnotation);
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}
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return annotations;
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}
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parseYoutubeAnnotation(annotationElement) {
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const base = annotationElement;
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const attributes = this.getAttributesFromBase(base);
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if (!attributes.type || attributes.type === "pause") return null;
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const text = this.getTextFromBase(base);
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const action = this.getActionFromBase(base);
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const backgroundShape = this.getBackgroundShapeFromBase(base);
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if (!backgroundShape) return null;
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const timeStart = backgroundShape.timeRange.start;
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const timeEnd = backgroundShape.timeRange.end;
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if (isNaN(timeStart) || isNaN(timeEnd) || timeStart === null || timeEnd === null) {
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return null;
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}
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const appearance = this.getAppearanceFromBase(base);
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// properties the renderer needs
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let annotation = {
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// possible values: text, highlight, pause, branding
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type: attributes.type,
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// x, y, width, and height as percent of video size
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x: backgroundShape.x,
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y: backgroundShape.y,
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width: backgroundShape.width,
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height: backgroundShape.height,
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// what time the annotation is shown in seconds
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timeStart,
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timeEnd
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};
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// properties the renderer can work without
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if (attributes.style) annotation.style = attributes.style;
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if (text) annotation.text = text;
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if (action) annotation = Object.assign(action, annotation);
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if (appearance) annotation = Object.assign(appearance, annotation);
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if (backgroundShape.hasOwnProperty("sx")) annotation.sx = backgroundShape.sx;
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if (backgroundShape.hasOwnProperty("sy")) annotation.sy = backgroundShape.sy;
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return annotation;
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}
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getBackgroundShapeFromBase(base) {
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const movingRegion = base.getElementsByTagName("movingRegion")[0];
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if (!movingRegion) return null;
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const regionType = movingRegion.getAttribute("type");
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const regions = movingRegion.getElementsByTagName(`${regionType}Region`);
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const timeRange = this.extractRegionTime(regions);
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const shape = {
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type: regionType,
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x: parseFloat(regions[0].getAttribute("x"), 10),
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y: parseFloat(regions[0].getAttribute("y"), 10),
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width: parseFloat(regions[0].getAttribute("w"), 10),
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height: parseFloat(regions[0].getAttribute("h"), 10),
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timeRange
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}
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const sx = regions[0].getAttribute("sx");
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const sy = regions[0].getAttribute("sy");
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if (sx) shape.sx = parseFloat(sx, 10);
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if (sy) shape.sy = parseFloat(sy, 10);
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return shape;
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}
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getAttributesFromBase(base) {
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const attributes = {};
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attributes.type = base.getAttribute("type");
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attributes.style = base.getAttribute("style");
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return attributes;
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}
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getTextFromBase(base) {
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const textElement = base.getElementsByTagName("TEXT")[0];
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if (textElement) return textElement.textContent;
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}
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getActionFromBase(base) {
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const actionElement = base.getElementsByTagName("action")[0];
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if (!actionElement) return null;
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const typeAttr = actionElement.getAttribute("type");
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const urlElement = actionElement.getElementsByTagName("url")[0];
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if (!urlElement) return null;
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const actionUrlTarget = urlElement.getAttribute("target");
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const href = urlElement.getAttribute("value");
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// only allow links to youtube
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// can be changed in the future
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if (href.startsWith("https://www.youtube.com/")) {
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const url = new URL(href);
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const srcVid = url.searchParams.get("src_vid");
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const toVid = url.searchParams.get("v");
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return this.linkOrTimestamp(url, srcVid, toVid, actionUrlTarget);
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}
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}
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linkOrTimestamp(url, srcVid, toVid, actionUrlTarget) {
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// check if it's a link to a new video
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// or just a timestamp
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if (srcVid && toVid && srcVid === toVid) {
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let seconds = 0;
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const hash = url.hash;
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if (hash && hash.startsWith("#t=")) {
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const timeString = url.hash.split("#t=")[1];
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seconds = this.timeStringToSeconds(timeString);
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}
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return {actionType: "time", actionSeconds: seconds}
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}
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else {
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return {actionType: "url", actionUrl: url.href, actionUrlTarget};
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}
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}
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getAppearanceFromBase(base) {
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const appearanceElement = base.getElementsByTagName("appearance")[0];
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const styles = this.constructor.defaultAppearanceAttributes;
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if (appearanceElement) {
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const bgOpacity = appearanceElement.getAttribute("bgAlpha");
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const bgColor = appearanceElement.getAttribute("bgColor");
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const fgColor = appearanceElement.getAttribute("fgColor");
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const textSize = appearanceElement.getAttribute("textSize");
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// not yet sure what to do with effects
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// const effects = appearanceElement.getAttribute("effects");
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// 0.00 to 1.00
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if (bgOpacity) styles.bgOpacity = parseFloat(bgOpacity, 10);
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// 0 to 256 ** 3
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if (bgColor) styles.bgColor = parseInt(bgColor, 10);
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if (fgColor) styles.fgColor = parseInt(fgColor, 10);
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// 0.00 to 100.00?
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if (textSize) styles.textSize = parseFloat(textSize, 10);
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}
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return styles;
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}
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/* helper functions */
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extractRegionTime(regions) {
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let timeStart = regions[0].getAttribute("t");
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timeStart = this.hmsToSeconds(timeStart);
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let timeEnd = regions[regions.length - 1].getAttribute("t");
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timeEnd = this.hmsToSeconds(timeEnd);
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return {start: timeStart, end: timeEnd}
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}
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// https://stackoverflow.com/a/9640417/10817894
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hmsToSeconds(hms) {
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let p = hms.split(":");
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let s = 0;
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let m = 1;
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while (p.length > 0) {
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s += m * parseFloat(p.pop(), 10);
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m *= 60;
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}
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return s;
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}
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timeStringToSeconds(time) {
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let seconds = 0;
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const h = time.split("h");
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const m = (h[1] || time).split("m");
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const s = (m[1] || time).split("s");
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if (h[0] && h.length === 2) seconds += parseInt(h[0], 10) * 60 * 60;
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if (m[0] && m.length === 2) seconds += parseInt(m[0], 10) * 60;
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if (s[0] && s.length === 2) seconds += parseInt(s[0], 10);
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return seconds;
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}
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getKeyByValue(obj, value) {
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for (const key in obj) {
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if (obj.hasOwnProperty(key)) {
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if (obj[key] === value) {
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return key;
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}
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}
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}
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}
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}
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class AnnotationRenderer {
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constructor(annotations, container, playerOptions, updateInterval = 1000) {
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if (!annotations) throw new Error("Annotation objects must be provided");
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if (!container) throw new Error("An element to contain the annotations must be provided");
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if (playerOptions && playerOptions.getVideoTime && playerOptions.seekTo) {
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this.playerOptions = playerOptions;
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}
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else {
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console.info("AnnotationRenderer is running without a player. The update method will need to be called manually.");
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}
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this.annotations = annotations;
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this.container = container;
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this.annotationsContainer = document.createElement("div");
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this.annotationsContainer.classList.add("__cxt-ar-annotations-container__");
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this.annotationsContainer.setAttribute("data-layer", "4");
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this.annotationsContainer.addEventListener("click", e => {
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this.annotationClickHandler(e);
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});
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this.container.prepend(this.annotationsContainer);
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this.createAnnotationElements();
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// in case the dom already loaded
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this.updateAllAnnotationSizes();
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window.addEventListener("DOMContentLoaded", e => {
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this.updateAllAnnotationSizes();
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});
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this.updateInterval = updateInterval;
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this.updateIntervalId = null;
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}
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changeAnnotationData(annotations) {
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this.stop();
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this.removeAnnotationElements();
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this.annotations = annotations;
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this.createAnnotationElements();
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this.start();
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}
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createAnnotationElements() {
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for (const annotation of this.annotations) {
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const el = document.createElement("div");
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el.classList.add("__cxt-ar-annotation__");
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annotation.__element = el;
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el.__annotation = annotation;
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// close button
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const closeButton = this.createCloseElement();
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closeButton.addEventListener("click", e => {
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el.setAttribute("hidden", "");
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el.setAttribute("data-ar-closed", "");
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if (el.__annotation.__speechBubble) {
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const speechBubble = el.__annotation.__speechBubble;
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speechBubble.style.display = "none";
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}
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});
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el.append(closeButton);
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if (annotation.text) {
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const textNode = document.createElement("span");
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textNode.textContent = annotation.text;
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el.append(textNode);
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el.setAttribute("data-ar-has-text", "");
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}
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if (annotation.style === "speech") {
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const containerDimensions = this.container.getBoundingClientRect();
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const speechX = this.percentToPixels(containerDimensions.width, annotation.x);
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const speechY = this.percentToPixels(containerDimensions.height, annotation.y);
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const speechWidth = this.percentToPixels(containerDimensions.width, annotation.width);
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const speechHeight = this.percentToPixels(containerDimensions.height, annotation.height);
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const speechPointX = this.percentToPixels(containerDimensions.width, annotation.sx);
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const speechPointY = this.percentToPixels(containerDimensions.height, annotation.sy);
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const bubbleColor = this.getFinalAnnotationColor(annotation, false);
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const bubble = this.createSvgSpeechBubble(speechX, speechY, speechWidth, speechHeight, speechPointX, speechPointY, bubbleColor, annotation.__element);
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bubble.style.display = "none";
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bubble.style.overflow = "visible";
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|
|
el.style.pointerEvents = "none";
|
||
|
|
bubble.__annotationEl = el;
|
||
|
|
annotation.__speechBubble = bubble;
|
||
|
|
|
||
|
|
const path = bubble.getElementsByTagName("path")[0];
|
||
|
|
path.addEventListener("mouseover", () => {
|
||
|
|
closeButton.style.display = "block";
|
||
|
|
// path.style.cursor = "pointer";
|
||
|
|
closeButton.style.cursor = "pointer";
|
||
|
|
path.setAttribute("fill", this.getFinalAnnotationColor(annotation, true));
|
||
|
|
});
|
||
|
|
path.addEventListener("mouseout", e => {
|
||
|
|
if (!e.relatedTarget.classList.contains("__cxt-ar-annotation-close__")) {
|
||
|
|
closeButton.style.display ="none";
|
||
|
|
// path.style.cursor = "default";
|
||
|
|
closeButton.style.cursor = "default";
|
||
|
|
path.setAttribute("fill", this.getFinalAnnotationColor(annotation, false));
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
closeButton.addEventListener("mouseleave", () => {
|
||
|
|
closeButton.style.display = "none";
|
||
|
|
path.style.cursor = "default";
|
||
|
|
closeButton.style.cursor = "default";
|
||
|
|
path.setAttribute("fill", this.getFinalAnnotationColor(annotation, false));
|
||
|
|
});
|
||
|
|
|
||
|
|
el.prepend(bubble);
|
||
|
|
}
|
||
|
|
else if (annotation.type === "highlight") {
|
||
|
|
el.style.backgroundColor = "";
|
||
|
|
el.style.border = `2.5px solid ${this.getFinalAnnotationColor(annotation, false)}`;
|
||
|
|
if (annotation.actionType === "url")
|
||
|
|
el.style.cursor = "pointer";
|
||
|
|
}
|
||
|
|
else if (annotation.style !== "title") {
|
||
|
|
el.style.backgroundColor = this.getFinalAnnotationColor(annotation);
|
||
|
|
el.addEventListener("mouseenter", () => {
|
||
|
|
el.style.backgroundColor = this.getFinalAnnotationColor(annotation, true);
|
||
|
|
});
|
||
|
|
el.addEventListener("mouseleave", () => {
|
||
|
|
el.style.backgroundColor = this.getFinalAnnotationColor(annotation, false);
|
||
|
|
});
|
||
|
|
if (annotation.actionType === "url")
|
||
|
|
el.style.cursor = "pointer";
|
||
|
|
}
|
||
|
|
|
||
|
|
el.style.color = `#${this.decimalToHex(annotation.fgColor)}`;
|
||
|
|
|
||
|
|
el.setAttribute("data-ar-type", annotation.type);
|
||
|
|
el.setAttribute("hidden", "");
|
||
|
|
this.annotationsContainer.append(el);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
createCloseElement() {
|
||
|
|
const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
|
||
|
|
svg.setAttribute("viewBox", "0 0 100 100")
|
||
|
|
svg.classList.add("__cxt-ar-annotation-close__");
|
||
|
|
|
||
|
|
const path = document.createElementNS(svg.namespaceURI, "path");
|
||
|
|
path.setAttribute("d", "M25 25 L 75 75 M 75 25 L 25 75");
|
||
|
|
path.setAttribute("stroke", "#bbb");
|
||
|
|
path.setAttribute("stroke-width", 10)
|
||
|
|
path.setAttribute("x", 5);
|
||
|
|
path.setAttribute("y", 5);
|
||
|
|
|
||
|
|
const circle = document.createElementNS(svg.namespaceURI, "circle");
|
||
|
|
circle.setAttribute("cx", 50);
|
||
|
|
circle.setAttribute("cy", 50);
|
||
|
|
circle.setAttribute("r", 50);
|
||
|
|
|
||
|
|
svg.append(circle, path);
|
||
|
|
return svg;
|
||
|
|
}
|
||
|
|
createSvgSpeechBubble(x, y, width, height, pointX, pointY, color = "white", element, svg) {
|
||
|
|
|
||
|
|
const horizontalBaseStartMultiplier = 0.17379070765180116;
|
||
|
|
const horizontalBaseEndMultiplier = 0.14896346370154384;
|
||
|
|
|
||
|
|
const verticalBaseStartMultiplier = 0.12;
|
||
|
|
const verticalBaseEndMultiplier = 0.3;
|
||
|
|
|
||
|
|
let path;
|
||
|
|
|
||
|
|
if (!svg) {
|
||
|
|
svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
|
||
|
|
svg.classList.add("__cxt-ar-annotation-speech-bubble__");
|
||
|
|
|
||
|
|
path = document.createElementNS("http://www.w3.org/2000/svg", "path");
|
||
|
|
path.setAttribute("fill", color);
|
||
|
|
svg.append(path);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
path = svg.children[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
svg.style.position = "absolute";
|
||
|
|
svg.setAttribute("width", "100%");
|
||
|
|
svg.setAttribute("height", "100%");
|
||
|
|
svg.style.left = "0";
|
||
|
|
svg.style.top = "0";
|
||
|
|
|
||
|
|
let positionStart;
|
||
|
|
|
||
|
|
let baseStartX = 0;
|
||
|
|
let baseStartY = 0;
|
||
|
|
|
||
|
|
let baseEndX = 0;
|
||
|
|
let baseEndY = 0;
|
||
|
|
|
||
|
|
let pointFinalX = pointX;
|
||
|
|
let pointFinalY = pointY;
|
||
|
|
|
||
|
|
let commentRectPath;
|
||
|
|
const pospad = 20;
|
||
|
|
|
||
|
|
let textWidth = 0;
|
||
|
|
let textHeight = 0;
|
||
|
|
let textX = 0;
|
||
|
|
let textY = 0;
|
||
|
|
|
||
|
|
let textElement;
|
||
|
|
let closeElement;
|
||
|
|
|
||
|
|
if (element) {
|
||
|
|
textElement = element.getElementsByTagName("span")[0];
|
||
|
|
closeElement = element.getElementsByClassName("__cxt-ar-annotation-close__")[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pointX > ((x + width) - (width / 2)) && pointY > y + height) {
|
||
|
|
positionStart = "br";
|
||
|
|
baseStartX = width - ((width * horizontalBaseStartMultiplier) * 2);
|
||
|
|
baseEndX = baseStartX + (width * horizontalBaseEndMultiplier);
|
||
|
|
baseStartY = height;
|
||
|
|
baseEndY = height;
|
||
|
|
|
||
|
|
pointFinalX = pointX - x;
|
||
|
|
pointFinalY = pointY - y;
|
||
|
|
element.style.height = pointY - y;
|
||
|
|
commentRectPath = `L${width} ${height} L${width} 0 L0 0 L0 ${baseStartY} L${baseStartX} ${baseStartY}`;
|
||
|
|
if (textElement) {
|
||
|
|
textWidth = width;
|
||
|
|
textHeight = height;
|
||
|
|
textX = 0;
|
||
|
|
textY = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (pointX < ((x + width) - (width / 2)) && pointY > y + height) {
|
||
|
|
positionStart = "bl";
|
||
|
|
baseStartX = width * horizontalBaseStartMultiplier;
|
||
|
|
baseEndX = baseStartX + (width * horizontalBaseEndMultiplier);
|
||
|
|
baseStartY = height;
|
||
|
|
baseEndY = height;
|
||
|
|
|
||
|
|
pointFinalX = pointX - x;
|
||
|
|
pointFinalY = pointY - y;
|
||
|
|
element.style.height = `${pointY - y}px`;
|
||
|
|
commentRectPath = `L${width} ${height} L${width} 0 L0 0 L0 ${baseStartY} L${baseStartX} ${baseStartY}`;
|
||
|
|
if (textElement) {
|
||
|
|
textWidth = width;
|
||
|
|
textHeight = height;
|
||
|
|
textX = 0;
|
||
|
|
textY = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (pointX > ((x + width) - (width / 2)) && pointY < (y - pospad)) {
|
||
|
|
positionStart = "tr";
|
||
|
|
baseStartX = width - ((width * horizontalBaseStartMultiplier) * 2);
|
||
|
|
baseEndX = baseStartX + (width * horizontalBaseEndMultiplier);
|
||
|
|
|
||
|
|
const yOffset = y - pointY;
|
||
|
|
baseStartY = yOffset;
|
||
|
|
baseEndY = yOffset;
|
||
|
|
element.style.top = y - yOffset + "px";
|
||
|
|
element.style.height = height + yOffset + "px";
|
||
|
|
|
||
|
|
pointFinalX = pointX - x;
|
||
|
|
pointFinalY = 0;
|
||
|
|
commentRectPath = `L${width} ${yOffset} L${width} ${height + yOffset} L0 ${height + yOffset} L0 ${yOffset} L${baseStartX} ${baseStartY}`;
|
||
|
|
if (textElement) {
|
||
|
|
textWidth = width;
|
||
|
|
textHeight = height;
|
||
|
|
textX = 0;
|
||
|
|
textY = yOffset;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (pointX < ((x + width) - (width / 2)) && pointY < y) {
|
||
|
|
positionStart = "tl";
|
||
|
|
baseStartX = width * horizontalBaseStartMultiplier;
|
||
|
|
baseEndX = baseStartX + (width * horizontalBaseEndMultiplier);
|
||
|
|
|
||
|
|
const yOffset = y - pointY;
|
||
|
|
baseStartY = yOffset;
|
||
|
|
baseEndY = yOffset;
|
||
|
|
element.style.top = y - yOffset + "px";
|
||
|
|
element.style.height = height + yOffset + "px";
|
||
|
|
|
||
|
|
pointFinalX = pointX - x;
|
||
|
|
pointFinalY = 0;
|
||
|
|
commentRectPath = `L${width} ${yOffset} L${width} ${height + yOffset} L0 ${height + yOffset} L0 ${yOffset} L${baseStartX} ${baseStartY}`;
|
||
|
|
|
||
|
|
if (textElement) {
|
||
|
|
textWidth = width;
|
||
|
|
textHeight = height;
|
||
|
|
textX = 0;
|
||
|
|
textY = yOffset;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (pointX > (x + width) && pointY > (y - pospad) && pointY < ((y + height) - pospad)) {
|
||
|
|
positionStart = "r";
|
||
|
|
|
||
|
|
const xOffset = pointX - (x + width);
|
||
|
|
|
||
|
|
baseStartX = width;
|
||
|
|
baseEndX = width;
|
||
|
|
|
||
|
|
element.style.width = width + xOffset + "px";
|
||
|
|
|
||
|
|
baseStartY = height * verticalBaseStartMultiplier;
|
||
|
|
baseEndY = baseStartY + (height * verticalBaseEndMultiplier);
|
||
|
|
|
||
|
|
pointFinalX = width + xOffset;
|
||
|
|
pointFinalY = pointY - y;
|
||
|
|
commentRectPath = `L${baseStartX} ${height} L0 ${height} L0 0 L${baseStartX} 0 L${baseStartX} ${baseStartY}`;
|
||
|
|
if (textElement) {
|
||
|
|
textWidth = width;
|
||
|
|
textHeight = height;
|
||
|
|
textX = 0;
|
||
|
|
textY = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (pointX < x && pointY > y && pointY < (y + height)) {
|
||
|
|
positionStart = "l";
|
||
|
|
|
||
|
|
const xOffset = x - pointX;
|
||
|
|
|
||
|
|
baseStartX = xOffset;
|
||
|
|
baseEndX = xOffset;
|
||
|
|
|
||
|
|
element.style.left = x - xOffset + "px";
|
||
|
|
element.style.width = width + xOffset + "px";
|
||
|
|
|
||
|
|
baseStartY = height * verticalBaseStartMultiplier;
|
||
|
|
baseEndY = baseStartY + (height * verticalBaseEndMultiplier);
|
||
|
|
|
||
|
|
pointFinalX = 0;
|
||
|
|
pointFinalY = pointY - y;
|
||
|
|
commentRectPath = `L${baseStartX} ${height} L${width + baseStartX} ${height} L${width + baseStartX} 0 L${baseStartX} 0 L${baseStartX} ${baseStartY}`;
|
||
|
|
if (textElement) {
|
||
|
|
textWidth = width;
|
||
|
|
textHeight = height;
|
||
|
|
textX = xOffset;
|
||
|
|
textY = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return svg;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (textElement) {
|
||
|
|
textElement.style.left = textX + "px";
|
||
|
|
textElement.style.top = textY + "px";
|
||
|
|
textElement.style.width = textWidth + "px";
|
||
|
|
textElement.style.height = textHeight + "px";
|
||
|
|
}
|
||
|
|
if (closeElement) {
|
||
|
|
const closeSize = parseFloat(this.annotationsContainer.style.getPropertyValue("--annotation-close-size"), 10);
|
||
|
|
if (closeSize) {
|
||
|
|
closeElement.style.left = ((textX + textWidth) + (closeSize / -1.8)) + "px";
|
||
|
|
closeElement.style.top = (textY + (closeSize / -1.8)) + "px";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const pathData = `M${baseStartX} ${baseStartY} L${pointFinalX} ${pointFinalY} L${baseEndX} ${baseEndY} ${commentRectPath}`;
|
||
|
|
path.setAttribute("d", pathData);
|
||
|
|
|
||
|
|
return svg;
|
||
|
|
}
|
||
|
|
getFinalAnnotationColor(annotation, hover = false) {
|
||
|
|
const alphaHex = hover ? (0xE6).toString(16) : Math.floor((annotation.bgOpacity * 255)).toString(16);
|
||
|
|
if (!isNaN(annotation.bgColor)) {
|
||
|
|
const bgColorHex = this.decimalToHex(annotation.bgColor);
|
||
|
|
|
||
|
|
const backgroundColor = `#${bgColorHex}${alphaHex}`;
|
||
|
|
return backgroundColor;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
removeAnnotationElements() {
|
||
|
|
for (const annotation of this.annotations) {
|
||
|
|
annotation.__element.remove();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
update(videoTime) {
|
||
|
|
for (const annotation of this.annotations) {
|
||
|
|
const el = annotation.__element;
|
||
|
|
if (el.hasAttribute("data-ar-closed")) continue;
|
||
|
|
const start = annotation.timeStart;
|
||
|
|
const end = annotation.timeEnd;
|
||
|
|
|
||
|
|
if (el.hasAttribute("hidden") && (videoTime >= start && videoTime < end)) {
|
||
|
|
el.removeAttribute("hidden");
|
||
|
|
if (annotation.style === "speech" && annotation.__speechBubble) {
|
||
|
|
annotation.__speechBubble.style.display = "block";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (!el.hasAttribute("hidden") && (videoTime < start || videoTime > end)) {
|
||
|
|
el.setAttribute("hidden", "");
|
||
|
|
if (annotation.style === "speech" && annotation.__speechBubble) {
|
||
|
|
annotation.__speechBubble.style.display = "none";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
start() {
|
||
|
|
if (!this.playerOptions) throw new Error("playerOptions must be provided to use the start method");
|
||
|
|
|
||
|
|
const videoTime = this.playerOptions.getVideoTime();
|
||
|
|
if (!this.updateIntervalId) {
|
||
|
|
this.update(videoTime);
|
||
|
|
this.updateIntervalId = setInterval(() => {
|
||
|
|
const videoTime = this.playerOptions.getVideoTime();
|
||
|
|
this.update(videoTime);
|
||
|
|
window.dispatchEvent(new CustomEvent("__ar_renderer_start"));
|
||
|
|
}, this.updateInterval);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
stop() {
|
||
|
|
if (!this.playerOptions) throw new Error("playerOptions must be provided to use the stop method");
|
||
|
|
|
||
|
|
const videoTime = this.playerOptions.getVideoTime();
|
||
|
|
if (this.updateIntervalId) {
|
||
|
|
this.update(videoTime);
|
||
|
|
clearInterval(this.updateIntervalId);
|
||
|
|
this.updateIntervalId = null;
|
||
|
|
window.dispatchEvent(new CustomEvent("__ar_renderer_stop"));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
updateAnnotationTextSize(annotation, containerHeight) {
|
||
|
|
if (annotation.textSize) {
|
||
|
|
const textSize = (annotation.textSize / 100) * containerHeight;
|
||
|
|
annotation.__element.style.fontSize = `${textSize}px`;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
updateTextSize() {
|
||
|
|
const containerHeight = this.container.getBoundingClientRect().height;
|
||
|
|
// should be run when the video resizes
|
||
|
|
for (const annotation of this.annotations) {
|
||
|
|
this.updateAnnotationTextSize(annotation, containerHeight);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
updateCloseSize(containerHeight) {
|
||
|
|
if (!containerHeight) containerHeight = this.container.getBoundingClientRect().height;
|
||
|
|
const multiplier = 0.0423;
|
||
|
|
this.annotationsContainer.style.setProperty("--annotation-close-size", `${containerHeight * multiplier}px`);
|
||
|
|
}
|
||
|
|
updateAnnotationDimensions(annotations, videoWidth, videoHeight) {
|
||
|
|
const playerWidth = this.container.getBoundingClientRect().width;
|
||
|
|
const playerHeight = this.container.getBoundingClientRect().height;
|
||
|
|
|
||
|
|
const widthDivider = playerWidth / videoWidth;
|
||
|
|
const heightDivider = playerHeight / videoHeight;
|
||
|
|
|
||
|
|
let scaledVideoWidth = playerWidth;
|
||
|
|
let scaledVideoHeight = playerHeight;
|
||
|
|
|
||
|
|
if (widthDivider % 1 !== 0 || heightDivider % 1 !== 0) {
|
||
|
|
// vertical bars
|
||
|
|
if (widthDivider > heightDivider) {
|
||
|
|
scaledVideoWidth = (playerHeight / videoHeight) * videoWidth;
|
||
|
|
scaledVideoHeight = playerHeight;
|
||
|
|
}
|
||
|
|
// horizontal bars
|
||
|
|
else if (heightDivider > widthDivider) {
|
||
|
|
scaledVideoWidth = playerWidth;
|
||
|
|
scaledVideoHeight = (playerWidth / videoWidth) * videoHeight;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const verticalBlackBarWidth = (playerWidth - scaledVideoWidth) / 2;
|
||
|
|
const horizontalBlackBarHeight = (playerHeight - scaledVideoHeight) / 2;
|
||
|
|
|
||
|
|
const widthOffsetPercent = (verticalBlackBarWidth / playerWidth * 100);
|
||
|
|
const heightOffsetPercent = (horizontalBlackBarHeight / playerHeight * 100);
|
||
|
|
|
||
|
|
const widthMultiplier = (scaledVideoWidth / playerWidth);
|
||
|
|
const heightMultiplier = (scaledVideoHeight / playerHeight);
|
||
|
|
|
||
|
|
for (const annotation of annotations) {
|
||
|
|
const el = annotation.__element;
|
||
|
|
|
||
|
|
let ax = widthOffsetPercent + (annotation.x * widthMultiplier);
|
||
|
|
let ay = heightOffsetPercent + (annotation.y * heightMultiplier);
|
||
|
|
let aw = annotation.width * widthMultiplier;
|
||
|
|
let ah = annotation.height * heightMultiplier;
|
||
|
|
|
||
|
|
el.style.left = `${ax}%`;
|
||
|
|
el.style.top = `${ay}%`;
|
||
|
|
|
||
|
|
el.style.width = `${aw}%`;
|
||
|
|
el.style.height = `${ah}%`;
|
||
|
|
|
||
|
|
let horizontalPadding = scaledVideoWidth * 0.008;
|
||
|
|
let verticalPadding = scaledVideoHeight * 0.008;
|
||
|
|
|
||
|
|
if (annotation.style === "speech" && annotation.text) {
|
||
|
|
const pel = annotation.__element.getElementsByTagName("span")[0];
|
||
|
|
horizontalPadding *= 2;
|
||
|
|
verticalPadding *= 2;
|
||
|
|
|
||
|
|
pel.style.paddingLeft = horizontalPadding + "px";
|
||
|
|
pel.style.paddingRight = horizontalPadding + "px";
|
||
|
|
pel.style.paddingBottom = verticalPadding + "px";
|
||
|
|
pel.style.paddingTop = verticalPadding + "px";
|
||
|
|
}
|
||
|
|
else if (annotation.style !== "speech") {
|
||
|
|
el.style.paddingLeft = horizontalPadding + "px";
|
||
|
|
el.style.paddingRight = horizontalPadding + "px";
|
||
|
|
el.style.paddingBottom = verticalPadding + "px";
|
||
|
|
el.style.paddingTop = verticalPadding + "px";
|
||
|
|
}
|
||
|
|
|
||
|
|
if (annotation.__speechBubble) {
|
||
|
|
const asx = this.percentToPixels(playerWidth, ax);
|
||
|
|
const asy = this.percentToPixels(playerHeight, ay);
|
||
|
|
const asw = this.percentToPixels(playerWidth, aw);
|
||
|
|
const ash = this.percentToPixels(playerHeight, ah);
|
||
|
|
|
||
|
|
let sx = widthOffsetPercent + (annotation.sx * widthMultiplier);
|
||
|
|
let sy = heightOffsetPercent + (annotation.sy * heightMultiplier);
|
||
|
|
sx = this.percentToPixels(playerWidth, sx);
|
||
|
|
sy = this.percentToPixels(playerHeight, sy);
|
||
|
|
|
||
|
|
this.createSvgSpeechBubble(asx, asy, asw, ash, sx, sy, null, annotation.__element, annotation.__speechBubble);
|
||
|
|
}
|
||
|
|
|
||
|
|
this.updateAnnotationTextSize(annotation, scaledVideoHeight);
|
||
|
|
this.updateCloseSize(scaledVideoHeight);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
updateAllAnnotationSizes() {
|
||
|
|
if (this.playerOptions && this.playerOptions.getOriginalVideoWidth && this.playerOptions.getOriginalVideoHeight) {
|
||
|
|
const videoWidth = this.playerOptions.getOriginalVideoWidth();
|
||
|
|
const videoHeight = this.playerOptions.getOriginalVideoHeight();
|
||
|
|
this.updateAnnotationDimensions(this.annotations, videoWidth, videoHeight);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
const playerWidth = this.container.getBoundingClientRect().width;
|
||
|
|
const playerHeight = this.container.getBoundingClientRect().height;
|
||
|
|
this.updateAnnotationDimensions(this.annotations, playerWidth, playerHeight);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
hideAll() {
|
||
|
|
for (const annotation of this.annotations) {
|
||
|
|
annotation.__element.setAttribute("hidden", "");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
annotationClickHandler(e) {
|
||
|
|
let annotationElement = e.target;
|
||
|
|
// if we click on annotation text instead of the actual annotation element
|
||
|
|
if (!annotationElement.matches(".__cxt-ar-annotation__") && !annotationElement.closest(".__cxt-ar-annotation-close__")) {
|
||
|
|
annotationElement = annotationElement.closest(".__cxt-ar-annotation__");
|
||
|
|
if (!annotationElement) return null;
|
||
|
|
}
|
||
|
|
let annotationData = annotationElement.__annotation;
|
||
|
|
|
||
|
|
if (!annotationElement || !annotationData) return;
|
||
|
|
|
||
|
|
if (annotationData.actionType === "time") {
|
||
|
|
const seconds = annotationData.actionSeconds;
|
||
|
|
if (this.playerOptions) {
|
||
|
|
this.playerOptions.seekTo(seconds);
|
||
|
|
const videoTime = this.playerOptions.getVideoTime();
|
||
|
|
this.update(videoTime);
|
||
|
|
}
|
||
|
|
window.dispatchEvent(new CustomEvent("__ar_seek_to", {detail: {seconds}}));
|
||
|
|
}
|
||
|
|
else if (annotationData.actionType === "url") {
|
||
|
|
const data = {url: annotationData.actionUrl, target: annotationData.actionUrlTarget || "current"};
|
||
|
|
|
||
|
|
const timeHash = this.extractTimeHash(new URL(data.url));
|
||
|
|
if (timeHash && timeHash.hasOwnProperty("seconds")) {
|
||
|
|
data.seconds = timeHash.seconds;
|
||
|
|
}
|
||
|
|
window.dispatchEvent(new CustomEvent("__ar_annotation_click", {detail: data}));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
setUpdateInterval(ms) {
|
||
|
|
this.updateInterval = ms;
|
||
|
|
this.stop();
|
||
|
|
this.start();
|
||
|
|
}
|
||
|
|
// https://stackoverflow.com/a/3689638/10817894
|
||
|
|
decimalToHex(dec) {
|
||
|
|
let hex = dec.toString(16);
|
||
|
|
hex = "000000".substr(0, 6 - hex.length) + hex;
|
||
|
|
return hex;
|
||
|
|
}
|
||
|
|
extractTimeHash(url) {
|
||
|
|
if (!url) throw new Error("A URL must be provided");
|
||
|
|
const hash = url.hash;
|
||
|
|
|
||
|
|
if (hash && hash.startsWith("#t=")) {
|
||
|
|
const timeString = url.hash.split("#t=")[1];
|
||
|
|
const seconds = this.timeStringToSeconds(timeString);
|
||
|
|
return {seconds};
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
timeStringToSeconds(time) {
|
||
|
|
let seconds = 0;
|
||
|
|
|
||
|
|
const h = time.split("h");
|
||
|
|
const m = (h[1] || time).split("m");
|
||
|
|
const s = (m[1] || time).split("s");
|
||
|
|
|
||
|
|
if (h[0] && h.length === 2) seconds += parseInt(h[0], 10) * 60 * 60;
|
||
|
|
if (m[0] && m.length === 2) seconds += parseInt(m[0], 10) * 60;
|
||
|
|
if (s[0] && s.length === 2) seconds += parseInt(s[0], 10);
|
||
|
|
|
||
|
|
return seconds;
|
||
|
|
}
|
||
|
|
percentToPixels(a, b) {
|
||
|
|
return a * b / 100;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function youtubeAnnotationsPlugin(options) {
|
||
|
|
if (!options.annotationXml) throw new Error("Annotation data must be provided");
|
||
|
|
if (!options.videoContainer) throw new Error("A video container to overlay the data on must be provided");
|
||
|
|
|
||
|
|
const player = this;
|
||
|
|
|
||
|
|
const xml = options.annotationXml;
|
||
|
|
const parser = new AnnotationParser();
|
||
|
|
const annotationElements = parser.getAnnotationsFromXml(xml);
|
||
|
|
const annotations = parser.parseYoutubeAnnotationList(annotationElements);
|
||
|
|
|
||
|
|
const videoContainer = options.videoContainer;
|
||
|
|
|
||
|
|
const playerOptions = {
|
||
|
|
getVideoTime() {
|
||
|
|
return player.currentTime();
|
||
|
|
},
|
||
|
|
seekTo(seconds) {
|
||
|
|
player.currentTime(seconds);
|
||
|
|
},
|
||
|
|
getOriginalVideoWidth() {
|
||
|
|
return player.videoWidth();
|
||
|
|
},
|
||
|
|
getOriginalVideoHeight() {
|
||
|
|
return player.videoHeight();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
raiseControls();
|
||
|
|
const renderer = new AnnotationRenderer(annotations, videoContainer, playerOptions, options.updateInterval);
|
||
|
|
setupEventListeners(player, renderer);
|
||
|
|
renderer.start();
|
||
|
|
}
|
||
|
|
|
||
|
|
function setupEventListeners(player, renderer) {
|
||
|
|
if (!player) throw new Error("A video player must be provided");
|
||
|
|
// should be throttled for performance
|
||
|
|
player.on("playerresize", e => {
|
||
|
|
renderer.updateAllAnnotationSizes(renderer.annotations);
|
||
|
|
});
|
||
|
|
// Trigger resize since the video can have different dimensions than player
|
||
|
|
player.one("loadedmetadata", e => {
|
||
|
|
renderer.updateAllAnnotationSizes(renderer.annotations);
|
||
|
|
});
|
||
|
|
|
||
|
|
player.on("pause", e => {
|
||
|
|
renderer.stop();
|
||
|
|
});
|
||
|
|
player.on("play", e => {
|
||
|
|
renderer.start();
|
||
|
|
});
|
||
|
|
player.on("seeking", e => {
|
||
|
|
renderer.update();
|
||
|
|
});
|
||
|
|
player.on("seeked", e => {
|
||
|
|
renderer.update();
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
function raiseControls() {
|
||
|
|
const styles = document.createElement("style");
|
||
|
|
styles.textContent = `
|
||
|
|
.vjs-control-bar {
|
||
|
|
z-index: 21;
|
||
|
|
}
|
||
|
|
`;
|
||
|
|
document.body.append(styles);
|
||
|
|
}
|