247 lines
8.8 KiB
JavaScript
247 lines
8.8 KiB
JavaScript
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/* This file is dedicated to the public domain; you may do as you wish with it. */
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/* Note: This code expects the global variable configRoot to be set. */
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var configRoot = "";
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if (typeof _ == 'undefined') {
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var _ = function(a) { return a; };
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}
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function setupVideo(thumb, url) {
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if (thumb.videoAlreadySetUp) return;
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thumb.videoAlreadySetUp = true;
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var video = null;
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var videoContainer, videoHide;
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var expanded = false;
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var hovering = false;
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//var loop = setting("videoloop");
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var loop = true;
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var loopControls = [document.createElement("span"), document.createElement("span")];
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var fileInfo = thumb.parentNode.querySelector(".fileinfo");
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var mouseDown = false;
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function unexpand() {
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if (expanded) {
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expanded = false;
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if (video.pause) video.pause();
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videoContainer.style.display = "none";
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thumb.style.display = "inline";
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video.style.maxWidth = "inherit";
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video.style.maxHeight = "inherit";
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}
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}
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function unhover() {
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if (hovering) {
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hovering = false;
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if (video.pause) video.pause();
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videoContainer.style.display = "none";
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video.style.maxWidth = "inherit";
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video.style.maxHeight = "inherit";
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}
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}
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// Create video element if does not exist yet
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function getVideo() {
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if (video == null) {
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video = document.createElement("video");
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video.src = url;
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video.loop = loop;
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video.innerText = _("Your browser does not support HTML5 video.");
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videoHide = document.createElement("img");
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videoHide.src = configRoot + "static/collapse.gif";
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videoHide.alt = "[ - ]";
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videoHide.title = "Collapse video";
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videoHide.style.marginLeft = "-15px";
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videoHide.style.cssFloat = "left";
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videoHide.addEventListener("click", unexpand, false);
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videoContainer = document.createElement("div");
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videoContainer.style.paddingLeft = "15px";
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videoContainer.style.display = "none";
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videoContainer.appendChild(videoHide);
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videoContainer.appendChild(video);
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thumb.parentNode.insertBefore(videoContainer, thumb.nextSibling);
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// Dragging to the left collapses the video
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video.addEventListener("mousedown", function(e) {
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if (e.button == 0) mouseDown = true;
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}, false);
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video.addEventListener("mouseup", function(e) {
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if (e.button == 0) mouseDown = false;
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}, false);
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video.addEventListener("mouseenter", function(e) {
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mouseDown = false;
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}, false);
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video.addEventListener("mouseout", function(e) {
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if (mouseDown && e.clientX - video.getBoundingClientRect().left <= 0) {
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unexpand();
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}
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mouseDown = false;
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}, false);
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}
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}
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// Clicking on thumbnail expands video
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thumb.addEventListener("click", function(e) {
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if (!e.shiftKey && !e.ctrlKey && !e.altKey && !e.metaKey) {
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getVideo();
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expanded = true;
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hovering = false;
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video.style.position = "static";
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video.style.pointerEvents = "inherit";
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video.style.display = "inline";
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videoHide.style.display = "inline";
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videoContainer.style.display = "block";
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videoContainer.style.position = "static";
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video.parentNode.parentNode.removeAttribute('style');
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thumb.style.display = "none";
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//video.muted = (setting("videovolume") == 0);
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//video.volume = setting("videovolume");
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video.controls = true;
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if (video.readyState == 0) {
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video.addEventListener("loadedmetadata", expand2, false);
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} else {
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setTimeout(expand2, 0);
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}
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video.play();
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e.preventDefault();
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}
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}, false);
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function expand2() {
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video.style.maxWidth = "100%";
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video.style.maxHeight = window.innerHeight + "px";
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var bottom = video.getBoundingClientRect().bottom;
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if (bottom > window.innerHeight) {
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window.scrollBy(0, bottom - window.innerHeight);
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}
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// work around Firefox volume control bug
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//video.volume = Math.max(setting("videovolume") - 0.001, 0);
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//video.volume = setting("videovolume");
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}
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// Hovering over thumbnail displays video
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thumb.addEventListener("mouseover", function(e) {
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//if (setting("videohover")) {
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if (false) { // DOESN'T WORK YET
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getVideo();
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expanded = false;
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hovering = true;
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var docRight = document.documentElement.getBoundingClientRect().right;
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var thumbRight = thumb.querySelector("img, video").getBoundingClientRect().right;
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var maxWidth = docRight - thumbRight - 20;
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if (maxWidth < 250) maxWidth = 250;
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video.style.position = "fixed";
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video.style.right = "0px";
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video.style.top = "0px";
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var docRight = document.documentElement.getBoundingClientRect().right;
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var thumbRight = thumb.querySelector("img, video").getBoundingClientRect().right;
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video.style.maxWidth = maxWidth + "px";
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video.style.maxHeight = "100%";
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video.style.pointerEvents = "none";
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video.style.display = "inline";
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videoHide.style.display = "none";
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videoContainer.style.display = "inline";
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videoContainer.style.position = "fixed";
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//video.muted = (setting("videovolume") == 0);
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//video.volume = setting("videovolume");
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video.controls = false;
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video.play();
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}
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}, false);
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thumb.addEventListener("mouseout", unhover, false);
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// Scroll wheel on thumbnail adjusts default volume
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thumb.addEventListener("wheel", function(e) {
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//if (setting("videohover")) {
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if (true) {
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//var volume = setting("videovolume");
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if (e.deltaY > 0) volume -= 0.1;
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if (e.deltaY < 0) volume += 0.1;
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if (volume < 0) volume = 0;
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if (volume > 1) volume = 1;
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if (video != null) {
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video.muted = (volume == 0);
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video.volume = volume;
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}
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//changeSetting("videovolume", volume);
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e.preventDefault();
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}
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}, false);
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// [play once] vs [loop] controls
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/*function setupLoopControl(i) {
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loopControls[i].addEventListener("click", function(e) {
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loop = (i != 0);
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thumb.href = thumb.href.replace(/([\?&])loop=\d+/, "$1loop=" + i);
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if (video != null) {
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video.loop = loop;
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if (loop && video.currentTime >= video.duration) {
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video.currentTime = 0;
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}
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}
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loopControls[i].style.fontWeight = "bold";
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loopControls[1-i].style.fontWeight = "inherit";
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}, false);
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}
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loopControls[0].textContent = _("[play once]");
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loopControls[1].textContent = _("[loop]");
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loopControls[(setting("videoloop") ? 1 : 0)].style.fontWeight = "bold";
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for (var i = 0; i < 2; i++) {
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setupLoopControl(i);
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loopControls[i].style.whiteSpace = "nowrap";
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fileInfo.appendChild(document.createTextNode(" "));
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fileInfo.appendChild(loopControls[i]);
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}*/
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}
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function setupVideosIn(element) {
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var thumbs = element.querySelectorAll("a.file");
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for (var i = 0; i < thumbs.length; i++) {
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if (/(\.webm)|(\.mp4)$/.test(thumbs[i].pathname)) {
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setupVideo(thumbs[i], thumbs[i].href);
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} else {
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var url = thumbs[i].href
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if (/(\.webm)|(\.mp4)$/.test(url)) setupVideo(thumbs[i], url);
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}
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}
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}
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onready(function(){
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// Insert menu from settings.js
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if (typeof settingsMenu != "undefined" && typeof Options == "undefined")
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document.body.insertBefore(settingsMenu, document.getElementsByTagName("hr")[0]);
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// Setup Javascript events for videos in document now
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setupVideosIn(document);
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// Setup Javascript events for videos added by updater
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if (window.MutationObserver) {
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var observer = new MutationObserver(function(mutations) {
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for (var i = 0; i < mutations.length; i++) {
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var additions = mutations[i].addedNodes;
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if (additions == null) continue;
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for (var j = 0; j < additions.length; j++) {
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var node = additions[j];
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if (node.nodeType == 1) {
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setupVideosIn(node);
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}
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}
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}
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});
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observer.observe(document.body, {childList: true, subtree: true});
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}
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});
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