gecko-dev/mobile/android/chrome/content/HelperApps.js

106 lines
3.5 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
var HelperApps = {
get defaultHttpHandlers() {
let protoHandlers = this.getAppsForProtocol("http");
var results = {};
for (var i = 0; i < protoHandlers.length; i++) {
try {
let protoApp = protoHandlers.queryElementAt(i, Ci.nsIHandlerApp);
results[protoApp.name] = protoApp;
} catch(e) {}
}
delete this.defaultHttpHandlers;
return this.defaultHttpHandlers = results;
},
get protoSvc() {
delete this.protoSvc;
return this.protoSvc = Cc["@mozilla.org/uriloader/external-protocol-service;1"].getService(Ci.nsIExternalProtocolService);
},
get urlHandlerService() {
delete this.urlHandlerService;
return this.urlHandlerService = Cc["@mozilla.org/uriloader/external-url-handler-service;1"].getService(Ci.nsIExternalURLHandlerService);
},
getAppsForProtocol: function getAppsForProtocol(uri) {
let handlerInfoProto = this.protoSvc.getProtocolHandlerInfoFromOS(uri, {});
return handlerInfoProto.possibleApplicationHandlers;
},
getAppsForUri: function getAppsFor(uri) {
let found = [];
let handlerInfoProto = this.urlHandlerService.getURLHandlerInfoFromOS(uri, {});
let urlHandlers = handlerInfoProto.possibleApplicationHandlers;
for (var i = 0; i < urlHandlers.length; i++) {
let urlApp = urlHandlers.queryElementAt(i, Ci.nsIHandlerApp);
if (!this.defaultHttpHandlers[urlApp.name]) {
found.push(urlApp);
}
}
return found;
},
openUriInApp: function openUriInApp(uri) {
var possibleHandlers = this.getAppsForUri(uri);
if (possibleHandlers.length == 1) {
possibleHandlers[0].launchWithURI(uri);
} else if (possibleHandlers.length > 0) {
let handlerInfoProto = this.urlHandlerService.getURLHandlerInfoFromOS(uri, {});
handlerInfoProto.preferredApplicationHandler.launchWithURI(uri);
}
},
showDoorhanger: function showDoorhanger(aUri, aCallback) {
let permValue = Services.perms.testPermission(aUri, "native-intent");
if (permValue != Services.perms.UNKNOWN_ACTION) {
if (permValue == Services.perms.ALLOW_ACTION) {
if (aCallback)
aCallback(aUri);
else
this.openUriInApp(aUri);
} else if (permValue == Services.perms.DENY_ACTION) {
// do nothing
}
return;
}
let apps = this.getAppsForUri(aUri);
let strings = Strings.browser;
let message = "";
if (apps.length == 1)
message = strings.formatStringFromName("helperapps.openWithApp2", [apps[0].name], 1);
else
message = strings.GetStringFromName("helperapps.openWithList2");
let buttons = [{
label: strings.GetStringFromName("helperapps.open"),
callback: function(aChecked) {
if (aChecked)
Services.perms.add(aUri, "native-intent", Ci.nsIPermissionManager.ALLOW_ACTION);
if (aCallback)
aCallback(aUri);
else
this.openUriInApp(aUri);
}
}, {
label: strings.GetStringFromName("helperapps.ignore"),
callback: function(aChecked) {
if (aChecked)
Services.perms.add(aUri, "native-intent", Ci.nsIPermissionManager.DENY_ACTION);
}
}];
let options = { checkbox: Strings.browser.GetStringFromName("helperapps.dontAskAgain") };
NativeWindow.doorhanger.show(message, "helperapps-open", buttons, BrowserApp.selectedTab.id, options);
}
};