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gaia/tv_apps/tv-epg/js/context_menu.js

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+/* global MozActivity, PinCard */
+
+'use strict';
+
+(function(exports) {
+  function ContextMenu(buttonConfigs, app) {
+    this.selfApp = app;
+    this.buttonConfigs = buttonConfigs;
+    document.addEventListener('contextmenu', this.updateMenu.bind(this));
+
+    // Get app metadata like origin and manifestURL from TVDeck for pinning
+    // channels to home
+    this.selfApp.connect('tvdeck-getmeta').then(function (ports) {
+      ports.forEach(function(port) {
+        port.postMessage('ping');
+        port.onmessage = function(message) {
+          if (message) {
+            this.tvDeckMeta = message.data;
+            this.pinCard = new PinCard(this.tvDeckMeta);
+            this.pinCard.on('update-pin-button', this.updateMenu.bind(this));
+            port.onmessage = null;
+          }
+        }.bind(this);
+      }.bind(this));
+    }.bind(this));
+  }
+
+  var proto = {};
+
+  proto.updateMenu = function cm_showMenu() {
+    var currentHash = window.location.hash;
+    if (this.pinCard.pinnedChannels[currentHash]) {
+      // Show unpin button if current channel is pinned.
+      this._updatePinButton('unpin-from-home', this._unpinFromHome.bind(this));
+    } else {
+      // Show pin button if current channel is not pinned yet.
+      this._updatePinButton('pin-to-home', this._pinToHome.bind(this));
+    }
+  };
+
+  proto._updatePinButton = function cm_updatePinButton(l10nId, onclick) {
+    this.buttonConfigs.forEach(function(buttonConfig) {
+      if (buttonConfig.element) {
+        buttonConfig.element.onclick = onclick;
+        if (buttonConfig.hasText) {
+          buttonConfig.element.setAttribute('data-l10n-id', l10nId);
+        }
+      }
+    }.bind(this));
+  };
+
+  proto._pinToHome = function cm__pinToHome() {
+    if (!this.tvDeckMeta) {
+      console.error('TVDeck meta not found.');
+      return;
+    }
+    var number = window.location.hash.split(',')[2];
+
+    /* jshint nonew:false */
+    new MozActivity({
+      name: 'pin',
+      data: {
+        type: 'Application',
+        group: 'tv',
+        name: {
+          id: 'channel-name',
+          args: {
+            number: number
+          }
+        },
+        manifestURL: this.tvDeckMeta.manifestURL,
+        launchURL: this.tvDeckMeta.origin + '/index.html' + window.location.hash
+      }
+    });
+  };
+
+  proto._unpinFromHome = function cm__unpinFromHome() {
+    var message = {
+      type: 'unpin',
+      data: {
+        manifestURL: this.tvDeckMeta.manifestURL,
+        launchURL: this.tvDeckMeta.origin + '/index.html' + window.location.hash
+      }
+    };
+
+    if (!this.unpinPorts) {
+      this.selfApp.connect('appdeck-channel').then(function (ports) {
+        this.unpinPorts = ports;
+        this.unpinPorts.forEach(function(port) {
+          port.postMessage(message);
+        });
+      }.bind(this));
+    } else {
+      this.unpinPorts.forEach(function(port) {
+        port.postMessage(message);
+      });
+    }
+  };
+
+  ContextMenu.prototype = proto;
+  exports.ContextMenu = ContextMenu;
+})(window);