diff options
Diffstat (limited to 'mobile/android/components/ContentDispatchChooser.js')
-rw-r--r-- | mobile/android/components/ContentDispatchChooser.js | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/mobile/android/components/ContentDispatchChooser.js b/mobile/android/components/ContentDispatchChooser.js new file mode 100644 index 000000000..b28e356e0 --- /dev/null +++ b/mobile/android/components/ContentDispatchChooser.js @@ -0,0 +1,83 @@ +/* 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/. */ + +const Ci = Components.interfaces; +const Cu = Components.utils; +const Cc = Components.classes; +const Cr = Components.results; + +Cu.import("resource://gre/modules/XPCOMUtils.jsm"); +Cu.import("resource://gre/modules/Services.jsm"); +Cu.import("resource://gre/modules/Messaging.jsm"); + +function ContentDispatchChooser() {} + +ContentDispatchChooser.prototype = +{ + classID: Components.ID("5a072a22-1e66-4100-afc1-07aed8b62fc5"), + + QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentDispatchChooser]), + + get protoSvc() { + if (!this._protoSvc) { + this._protoSvc = Cc["@mozilla.org/uriloader/external-protocol-service;1"].getService(Ci.nsIExternalProtocolService); + } + return this._protoSvc; + }, + + _getChromeWin: function getChromeWin() { + try { + return Services.wm.getMostRecentWindow("navigator:browser"); + } catch (e) { + throw Cr.NS_ERROR_FAILURE; + } + }, + + ask: function ask(aHandler, aWindowContext, aURI, aReason) { + let window = null; + try { + if (aWindowContext) + window = aWindowContext.getInterface(Ci.nsIDOMWindow); + } catch (e) { /* it's OK to not have a window */ } + + // The current list is based purely on the scheme. Redo the query using the url to get more + // specific results. + aHandler = this.protoSvc.getProtocolHandlerInfoFromOS(aURI.spec, {}); + + // The first handler in the set is the Android Application Chooser (which will fall back to a default if one is set) + // If we have more than one option, let the OS handle showing a list (if needed). + if (aHandler.possibleApplicationHandlers.length > 1) { + aHandler.launchWithURI(aURI, aWindowContext); + } else { + // xpcshell tests do not have an Android Bridge but we require Android + // Bridge when using Messaging so we guard against this case. xpcshell + // tests also do not have a window, so we use this state to guard. + let win = this._getChromeWin(); + if (!win) { + return; + } + + let msg = { + type: "Intent:OpenNoHandler", + uri: aURI.spec, + }; + + Messaging.sendRequestForResult(msg).then(() => { + // Java opens an app on success: take no action. + }, (uri) => { + // We couldn't open this. If this was from a click, it's likely that we just + // want this to fail silently. If the user entered this on the address bar, though, + // we want to show the neterror page. + + let dwu = window.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils); + let millis = dwu.millisSinceLastUserInput; + if (millis > 0 && millis >= 1000) { + window.location.href = uri; + } + }); + } + }, +}; + +this.NSGetFactory = XPCOMUtils.generateNSGetFactory([ContentDispatchChooser]); |