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s/videojs.persistvolume.js

@@ -0,0 +1,123 @@
+"use strict";
+(function(factory){
+  /*!
+   * Custom Universal Module Definition (UMD)
+   *
+   * Video.js will never be a non-browser lib so we can simplify UMD a bunch and
+   * still support requirejs and browserify. This also needs to be closure
+   * compiler compatible, so string keys are used.
+   */
+  if (typeof define === 'function' && define['amd']) {
+    define(['./video'], function(vjs){ factory(window, document, vjs) });
+  // checking that module is an object too because of umdjs/umd#35
+  } else if (typeof exports === 'object' && typeof module === 'object') {
+    factory(window, document, require('video.js'));
+  } else {
+    factory(window, document, videojs);
+  }
+
+})(function(window, document, vjs) {
+  //cookie functions from https://developer.mozilla.org/en-US/docs/DOM/document.cookie
+  var
+  getCookieItem = function(sKey) {
+    if (!sKey || !hasCookieItem(sKey)) { return null; }
+    var reg_ex = new RegExp(
+      "(?:^|.*;\\s*)" +
+      window.escape(sKey).replace(/[\-\.\+\*]/g, "\\$&") +
+      "\\s*\\=\\s*((?:[^;](?!;))*[^;]?).*"
+    );
+    return window.unescape(document.cookie.replace(reg_ex,"$1"));
+  },
+
+  setCookieItem = function(sKey, sValue, vEnd, sPath, sDomain, bSecure) {
+    if (!sKey || /^(?:expires|max\-age|path|domain|secure)$/i.test(sKey)) { return; }
+    var sExpires = "";
+    if (vEnd) {
+      switch (vEnd.constructor) {
+        case Number:
+          sExpires = vEnd === Infinity ? "; expires=Tue, 19 Jan 2038 03:14:07 GMT" : "; max-age=" + vEnd;
+          break;
+        case String:
+          sExpires = "; expires=" + vEnd;
+          break;
+        case Date:
+          sExpires = "; expires=" + vEnd.toGMTString();
+          break;
+      }
+    }
+    document.cookie =
+      window.escape(sKey) + "=" +
+      window.escape(sValue) +
+      sExpires +
+      (sDomain ? "; domain=" + sDomain : "") +
+      (sPath ? "; path=" + sPath : "") +
+      (bSecure ? "; secure" : "");
+  },
+
+  hasCookieItem = function(sKey) {
+    return (new RegExp(
+      "(?:^|;\\s*)" +
+      window.escape(sKey).replace(/[\-\.\+\*]/g, "\\$&") +
+      "\\s*\\=")
+    ).test(document.cookie);
+  },
+
+  hasLocalStorage = function() {
+    try {
+      window.localStorage.setItem('persistVolume', 'persistVolume');
+      window.localStorage.removeItem('persistVolume');
+      return true;
+    } catch(e) {
+      return false;
+    }
+  },
+  getStorageItem = function(key) {
+    return hasLocalStorage() ? window.localStorage.getItem(key) : getCookieItem(key);
+  },
+  setStorageItem = function(key, value) {
+    return hasLocalStorage() ? window.localStorage.setItem(key, value) : setCookieItem(key, value, Infinity, '/');
+  },
+
+  extend = function(obj) {
+    var arg, i, k;
+    for (i = 1; i < arguments.length; i++) {
+      arg = arguments[i];
+      for (k in arg) {
+        if (arg.hasOwnProperty(k)) {
+          obj[k] = arg[k];
+        }
+      }
+    }
+    return obj;
+  },
+
+  defaults = {
+    namespace: ""
+  },
+
+  volumePersister = function(options) {
+    var player = this;
+    var settings = extend({}, defaults, options || {});
+
+    var key = settings.namespace + '-' + 'volume';
+    var muteKey = settings.namespace + '-' + 'mute';
+
+    player.on("volumechange", function() {
+      setStorageItem(key, player.volume());
+      setStorageItem(muteKey, player.muted());
+    });
+
+    var persistedVolume = getStorageItem(key);
+    if(persistedVolume !== null){
+      player.volume(persistedVolume);
+    }
+
+    var persistedMute = getStorageItem(muteKey);
+    if(persistedMute !== null){
+      player.muted('true' === persistedMute);
+    }
+  };
+
+  vjs.plugin("persistvolume", volumePersister);
+
+});