Provides click-to-play functionality for YouTube (disables auto-play).
目前為
// ==UserScript==
// @name YouTube - click to play
// @namespace monnef.tk
// @include https://www.youtube.com/*
// @version 1
// @grant none
// @require http://code.jquery.com/jquery-2.1.3.min.js
// @run-at document-start
// @description Provides click-to-play functionality for YouTube (disables auto-play).
// ==/UserScript==
/*
Few Notes
-----------
This script *may* work with other html5 players, you have to test it on your own.
Mutation observer is not used, b/c GreaseMonkey thrashes all events for it...
*/
var debug = false;
function log(msg){
if(debug) console.log(msg);
}
log("installing video hook");
HTMLMediaElement.prototype._oldPlay = HTMLMediaElement.prototype.play;
HTMLMediaElement.prototype.play = function() {
var unlocked = this._playUnlocked !== undefined;
log("intercepted play request, " + unlocked);
if (unlocked) this._oldPlay();
};
this.$ = this.jQuery = jQuery.noConflict(true);
function insertUnlockers(sc) {
log("inserting unlocker");
var ve = $("video", sc);
log("got " + ve.length + " video element(s).");
ve.each(function() {
var elem = this;
$(this).attr("data-uv-processed", "true");
var unlockerLink = $("<a href='#'>Unlock video and play!</a>").click(function() {
log("unlocking and playing");
elem._playUnlocked = true;
elem.play();
$(this).parent().hide();
return false;
}).css("font-size", "15pt");
$(this).before(unlockerLink);
unlockerLink.wrap("<div></div>");
unlockerLink.parent().css("height", "50px").css("width","220px").css("background-color", "rgba(255, 255, 255, 0.8)").css("color", "black").css("position", "relative").css("z-index", "950").css("margin", "20px").css("padding", "10px").css("border", "1px solid #aaa").append("<p style='margin-top:10px'>Created by <a href='http://monnef.tk'>monnef</a>.</p>");
});
}
function installDomEventListener() {
document.addEventListener("DOMNodeInserted", function(e) {
var nodeRaw = e.target;
var node = $(nodeRaw);
if (nodeRaw.nodeName.toLowerCase() == "video" || $("video", node).length > 0) {
log("found");
var parentNode = $(node.parent());
if (!node.attr("data-uv-processed") && !parentNode.attr("data-uv-processed")) {
insertUnlockers(parentNode);
}
}
}, false);
}
installDomEventListener();