browser/metro/base/content/contenthandlers/PluginHelper.js@7e26c7da4463 (annotated)
browser/metro/base/content/contenthandlers/PluginHelper.js
Wed, 31 Dec 2014 06:55:50 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:55:50 +0100
- changeset 2
- 7e26c7da4463
- permissions
- -rw-r--r--
Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this file, |
| michael@0 | 3 | * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | "use strict"; |
| michael@0 | 5 | |
| michael@0 | 6 | dump("### PluginHelper.js loaded\n"); |
| michael@0 | 7 | |
| michael@0 | 8 | /** |
| michael@0 | 9 | * Handle events generated by plugin click-to-play code. |
| michael@0 | 10 | * |
| michael@0 | 11 | * This "PluginBindingAttached" fires when a "pluginProblem" XBL binding is |
| michael@0 | 12 | * created. This binding overlays plugin content when the plugin is missing, |
| michael@0 | 13 | * blocked, click-to-play, or replaced by a "preview" extension plugin like |
| michael@0 | 14 | * Shumway or PDF.js. |
| michael@0 | 15 | */ |
| michael@0 | 16 | var PluginHelper = { |
| michael@0 | 17 | init: function () { |
| michael@0 | 18 | addEventListener("PluginBindingAttached", this, true, true); |
| michael@0 | 19 | }, |
| michael@0 | 20 | |
| michael@0 | 21 | handleEvent: function handleEvent(aEvent) { |
| michael@0 | 22 | switch (aEvent.type) { |
| michael@0 | 23 | case "PluginBindingAttached": |
| michael@0 | 24 | this.handlePluginBindingAttached(aEvent); |
| michael@0 | 25 | break; |
| michael@0 | 26 | } |
| michael@0 | 27 | }, |
| michael@0 | 28 | |
| michael@0 | 29 | getPluginMimeType: function (plugin) { |
| michael@0 | 30 | var tagMimetype = plugin.actualType; |
| michael@0 | 31 | |
| michael@0 | 32 | if (tagMimetype == "") { |
| michael@0 | 33 | tagMimetype = plugin.type; |
| michael@0 | 34 | } |
| michael@0 | 35 | return tagMimetype; |
| michael@0 | 36 | }, |
| michael@0 | 37 | |
| michael@0 | 38 | handlePluginBindingAttached: function (aEvent) { |
| michael@0 | 39 | let plugin = aEvent.target; |
| michael@0 | 40 | let doc = plugin.ownerDocument; |
| michael@0 | 41 | let overlay = doc.getAnonymousElementByAttribute(plugin, "anonid", "main"); |
| michael@0 | 42 | if (!overlay || overlay._bindingHandled) { |
| michael@0 | 43 | return; |
| michael@0 | 44 | } |
| michael@0 | 45 | overlay._bindingHandled = true; |
| michael@0 | 46 | |
| michael@0 | 47 | let eventType = PluginHelper._getBindingType(plugin); |
| michael@0 | 48 | if (!eventType) { |
| michael@0 | 49 | return; |
| michael@0 | 50 | } |
| michael@0 | 51 | |
| michael@0 | 52 | switch (eventType) { |
| michael@0 | 53 | case "PluginPlayPreview": { |
| michael@0 | 54 | // Load the "preview" handler (an extension plugin like Shumway or PDF.js). |
| michael@0 | 55 | let previewContent = doc.getAnonymousElementByAttribute(plugin, "class", "previewPluginContent"); |
| michael@0 | 56 | let pluginHost = Cc["@mozilla.org/plugin/host;1"].getService(Ci.nsIPluginHost); |
| michael@0 | 57 | let mimeType = PluginHelper.getPluginMimeType(plugin); |
| michael@0 | 58 | let playPreviewInfo = pluginHost.getPlayPreviewInfo(mimeType); |
| michael@0 | 59 | |
| michael@0 | 60 | let iframe = previewContent.getElementsByClassName("previewPluginContentFrame")[0]; |
| michael@0 | 61 | if (!iframe) { |
| michael@0 | 62 | // lazy initialization of the iframe |
| michael@0 | 63 | iframe = doc.createElementNS("http://www.w3.org/1999/xhtml", "iframe"); |
| michael@0 | 64 | iframe.className = "previewPluginContentFrame"; |
| michael@0 | 65 | previewContent.appendChild(iframe); |
| michael@0 | 66 | } |
| michael@0 | 67 | iframe.src = playPreviewInfo.redirectURL; |
| michael@0 | 68 | break; |
| michael@0 | 69 | } |
| michael@0 | 70 | |
| michael@0 | 71 | case "PluginNotFound": { |
| michael@0 | 72 | // TODO: Display a message about missing plugins (bug 936907) |
| michael@0 | 73 | break; |
| michael@0 | 74 | } |
| michael@0 | 75 | } |
| michael@0 | 76 | }, |
| michael@0 | 77 | |
| michael@0 | 78 | // Helper to get the binding handler type from a plugin object |
| michael@0 | 79 | _getBindingType: function(plugin) { |
| michael@0 | 80 | if (!(plugin instanceof Ci.nsIObjectLoadingContent)) |
| michael@0 | 81 | return null; |
| michael@0 | 82 | |
| michael@0 | 83 | switch (plugin.pluginFallbackType) { |
| michael@0 | 84 | case Ci.nsIObjectLoadingContent.PLUGIN_UNSUPPORTED: |
| michael@0 | 85 | return "PluginNotFound"; |
| michael@0 | 86 | case Ci.nsIObjectLoadingContent.PLUGIN_PLAY_PREVIEW: |
| michael@0 | 87 | return "PluginPlayPreview"; |
| michael@0 | 88 | default: |
| michael@0 | 89 | // Metro Firefox does not yet support other fallback types. |
| michael@0 | 90 | return null; |
| michael@0 | 91 | } |
| michael@0 | 92 | }, |
| michael@0 | 93 | }; |
| michael@0 | 94 | |
| michael@0 | 95 | PluginHelper.init(); |
