gecko/toolkit/mozapps/extensions/PluginProvider.jsm

254 lines
7.3 KiB
JavaScript

/*
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is the Extension Manager.
#
# The Initial Developer of the Original Code is
# the Mozilla Foundation.
# Portions created by the Initial Developer are Copyright (C) 2010
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# Dave Townsend <dtownsend@oxymoronical.com>
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
*/
const Cc = Components.classes;
const Ci = Components.interfaces;
var EXPORTED_SYMBOLS = [];
Components.utils.import("resource://gre/modules/AddonManager.jsm");
/**
* Logs a debug message.
* @param str
* The string to log
*/
function LOG(str) {
dump("*** addons.plugins: " + str + "\n");
}
/**
* Logs a warning message.
* @param str
* The string to log
*/
function WARN(str) {
LOG(str);
}
/**
* Logs an error message.
* @param str
* The string to log
*/
function ERROR(str) {
LOG(str);
}
var PluginProvider = {
// A dictionary mapping IDs to names and descriptions
plugins: null,
/**
* Called to get an Addon with a particular ID.
* @param id
* The ID of the add-on to retrieve
* @param callback
* A callback to pass the Addon to
*/
getAddon: function PL_getAddon(id, callback) {
if (!this.plugins)
this.buildPluginList();
if (id in this.plugins) {
let name = this.plugins[id].name;
let description = this.plugins[id].description;
let tags = Cc["@mozilla.org/plugin/host;1"].
getService(Ci.nsIPluginHost).
getPluginTags({});
let selected = [];
tags.forEach(function(tag) {
if (tag.name == name && tag.description == description)
selected.push(tag);
}, this);
callback(new PluginWrapper(id, name, description, selected));
}
else {
callback(null);
}
},
/**
* Called to get Addons of a particular type.
* @param types
* An array of types to fetch. Can be null to get all types.
* @param callback
* A callback to pass an array of Addons to
*/
getAddonsByTypes: function PL_getAddonsByTypes(types, callback) {
if (types && types.indexOf("plugin") < 0) {
callback([]);
return;
}
if (!this.plugins)
this.buildPluginList();
let results = [];
for (let id in this.plugins) {
this.getAddon(id, function(addon) {
results.push(addon);
});
}
callback(results);
},
/**
* Called to get Addons that have pending operations.
* @param types
* An array of types to fetch. Can be null to get all types
* @param callback
* A callback to pass an array of Addons to
*/
getAddonsWithPendingOperations: function PL_getAddonsWithPendingOperations(types, callback) {
callback([]);
},
/**
* Called to get the current AddonInstalls, optionally restricting by type.
* @param types
* An array of types or null to get all types
* @param callback
* A callback to pass the array of AddonInstalls to
*/
getInstalls: function PL_getInstalls(types, callback) {
callback([]);
},
buildPluginList: function PL_buildPluginList() {
let tags = Cc["@mozilla.org/plugin/host;1"].
getService(Ci.nsIPluginHost).
getPluginTags({});
this.plugins = {};
let seen = {};
tags.forEach(function(tag) {
if (!(tag.name in seen))
seen[tag.name] = {};
if (!(tag.description in seen[tag.name])) {
let id = Cc["@mozilla.org/uuid-generator;1"].
getService(Ci.nsIUUIDGenerator).
generateUUID();
this.plugins[id] = {
name: tag.name,
description: tag.description
};
seen[tag.name][tag.description] = true;
}
}, this);
}
};
/**
* The PluginWrapper wraps a set of nsIPluginTags to provide the data visible to
* public callers through the API.
*/
function PluginWrapper(id, name, description, tags) {
let safedesc = description.replace(/<\/?[a-z][^>]*>/gi, " ");
let homepageURL = null;
if (/<A\s+HREF=[^>]*>/i.test(description))
homepageURL = /<A\s+HREF=["']?([^>"'\s]*)/i.exec(description)[1];
this.__defineGetter__("id", function() id);
this.__defineGetter__("type", function() "plugin");
this.__defineGetter__("name", function() name);
this.__defineGetter__("description", function() safedesc);
this.__defineGetter__("version", function() tags[0].version);
this.__defineGetter__("homepageURL", function() homepageURL);
this.__defineGetter__("isActive", function() !tags[0].blocklisted && !tags[0].disabled);
this.__defineGetter__("isCompatible", function() true);
this.__defineGetter__("appDisabled", function() tags[0].blocklisted);
this.__defineGetter__("userDisabled", function() tags[0].disabled);
this.__defineSetter__("userDisabled", function(val) {
if (tags[0].disabled == val)
return;
tags.forEach(function(tag) {
tag.disabled = val;
});
AddonManagerPrivate.callAddonListeners(val ? "onDisabling" : "onEnabling", this, false);
AddonManagerPrivate.callAddonListeners(val ? "onDisabled" : "onEnabled", this);
return val;
});
this.__defineGetter__("pendingOperations", function() {
return 0;
});
this.__defineGetter__("permissions", function() {
let permissions = 0;
if (!this.appDisabled) {
if (this.userDisabled)
permissions |= AddonManager.PERM_CAN_ENABLE;
else
permissions |= AddonManager.PERM_CAN_DISABLE;
}
return permissions;
});
this.uninstall = function() {
throw new Error("Cannot uninstall plugins");
};
this.cancelUninstall = function() {
throw new Error("Plugin is not marked to be uninstalled");
};
this.findUpdates = function(listener, reason, appVersion, platformVersion) {
throw new Error("Cannot search for updates for plugins");
};
this.hasResource = function(path) {
return false;
},
this.getResourceURL = function(path) {
return null;
}
}
PluginWrapper.prototype = { };
AddonManagerPrivate.registerProvider(PluginProvider);