pjs/mobile/components/CapturePicker.js

119 строки
3.7 KiB
JavaScript

/* -*- Mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil; -*- */
/* ***** 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 CapturePicker.js
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Kyle Huey <me@kylehuey.com>
* Fabrice Desré <fabrice@mozilla.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;
const Cr = Components.results;
const Cu = Components.utils;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
function CapturePicker() {
this.messageManager = Cc["@mozilla.org/childprocessmessagemanager;1"].getService(Ci.nsISyncMessageSender);
}
CapturePicker.prototype = {
_file: null,
_mode: -1,
_result: -1,
_shown: false,
_title: "",
_type: "",
_window: null,
//
// nsICapturePicker
//
init: function(aWindow, aTitle, aMode) {
this._window = aWindow;
this._title = aTitle;
this._mode = aMode;
},
show: function() {
if (this._shown)
throw Cr.NS_ERROR_UNEXPECTED;
this._shown = true;
let res = this.messageManager.sendSyncMessage("CapturePicker:Show", { title: this._title, mode: this._mode, type: this._type })[0];
if (res.value)
this._file = res.path;
return (res.value ? Ci.nsICapturePicker.RETURN_OK : Ci.nsICapturePicker.RETURN_CANCEL);
},
modeMayBeAvailable: function(aMode) {
if (aMode != Ci.nsICapturePicker.MODE_STILL)
return false;
return true;
},
get file() {
if (this._file) {
let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);
file.initWithPath(this._file);
let utils = this._window.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
return utils.wrapDOMFile(file);
} else {
throw Cr.NS_ERROR_FAILURE;
}
},
get type() {
return this._type;
},
set type(aNewType) {
if (this._shown)
throw Cr.NS_ERROR_UNEXPECTED;
else
this._type = aNewType;
},
// QI
QueryInterface: XPCOMUtils.generateQI([Ci.nsICapturePicker]),
// XPCOMUtils factory
classID: Components.ID("{cb5a47f0-b58c-4fc3-b61a-358ee95f8238}"),
};
var components = [ CapturePicker ];
const NSGetFactory = XPCOMUtils.generateNSGetFactory(components);