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332 lines
11 KiB
JavaScript
332 lines
11 KiB
JavaScript
/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* No magic constructor behaviour, as is de rigeur for XPCOM.
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* If you must perform some initialization, and it could possibly fail (even
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* due to an out-of-memory condition), you should use an Init method, which
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* can convey failure appropriately (thrown exception in JS,
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* NS_FAILED(nsresult) return in C++).
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*
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* In JS, you can actually cheat, because a thrown exception will cause the
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* CreateInstance call to fail in turn, but not all languages are so lucky.
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* (Though ANSI C++ provides exceptions, they are verboten in Mozilla code
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* for portability reasons -- and even when you're building completely
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* platform-specific code, you can't throw across an XPCOM method boundary.)
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*/
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Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
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const DEBUG = false; /* set to true to enable debug messages */
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const LOCAL_FILE_CONTRACTID = "@mozilla.org/file/local;1";
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const APPSHELL_SERV_CONTRACTID = "@mozilla.org/appshell/appShellService;1";
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const STRBUNDLE_SERV_CONTRACTID = "@mozilla.org/intl/stringbundle;1";
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const nsIAppShellService = Components.interfaces.nsIAppShellService;
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const nsILocalFile = Components.interfaces.nsILocalFile;
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const nsIFileURL = Components.interfaces.nsIFileURL;
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const nsISupports = Components.interfaces.nsISupports;
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const nsIFactory = Components.interfaces.nsIFactory;
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const nsIFilePicker = Components.interfaces.nsIFilePicker;
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const nsIInterfaceRequestor = Components.interfaces.nsIInterfaceRequestor;
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const nsIDOMWindow = Components.interfaces.nsIDOMWindow;
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const nsIStringBundleService = Components.interfaces.nsIStringBundleService;
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const nsIWebNavigation = Components.interfaces.nsIWebNavigation;
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const nsIDocShellTreeItem = Components.interfaces.nsIDocShellTreeItem;
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const nsIBaseWindow = Components.interfaces.nsIBaseWindow;
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var titleBundle = null;
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var filterBundle = null;
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var lastDirectory = null;
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function nsFilePicker()
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{
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if (!titleBundle)
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titleBundle = srGetStrBundle("chrome://global/locale/filepicker.properties");
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if (!filterBundle)
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filterBundle = srGetStrBundle("chrome://global/content/filepicker.properties");
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/* attributes */
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this.mDefaultString = "";
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this.mFilterIndex = 0;
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this.mFilterTitles = new Array();
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this.mFilters = new Array();
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this.mDisplayDirectory = null;
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if (lastDirectory) {
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try {
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var dir = Components.classes[LOCAL_FILE_CONTRACTID].createInstance(nsILocalFile);
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dir.initWithPath(lastDirectory);
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this.mDisplayDirectory = dir;
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} catch (e) {}
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}
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}
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nsFilePicker.prototype = {
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classID: Components.ID("{54ae32f8-1dd2-11b2-a209-df7c505370f8}"),
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QueryInterface: function(iid) {
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if (iid.equals(nsIFilePicker) ||
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iid.equals(nsISupports))
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return this;
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throw Components.results.NS_ERROR_NO_INTERFACE;
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},
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/* attribute nsILocalFile displayDirectory; */
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set displayDirectory(a) {
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this.mDisplayDirectory = a &&
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a.clone().QueryInterface(nsILocalFile);
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},
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get displayDirectory() {
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return this.mDisplayDirectory &&
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this.mDisplayDirectory.clone()
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.QueryInterface(nsILocalFile);
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},
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/* readonly attribute nsILocalFile file; */
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get file() { return this.mFilesEnumerator.mFiles[0]; },
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/* readonly attribute nsISimpleEnumerator files; */
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get files() { return this.mFilesEnumerator; },
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/* readonly attribute DOM File domfile; */
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get domfile() {
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let enumerator = this.domfiles;
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return enumerator ? enumerator.mFiles[0] : null;
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},
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/* readonly attribute nsISimpleEnumerator domfiles; */
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get domfiles() {
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if (!this.mFilesEnumerator) {
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return null;
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}
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if (!this.mDOMFilesEnumerator) {
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this.mDOMFilesEnumerator = {
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QueryInterface: XPCOMUtils.generateQI([Components.interfaces.nsISimpleEnumerator]),
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mFiles: [],
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mIndex: 0,
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hasMoreElements: function() {
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return (this.mIndex < this.mFiles.length);
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},
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getNext: function() {
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if (this.mIndex >= this.mFiles.length) {
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throw Components.results.NS_ERROR_FAILURE;
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}
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return this.mFiles[this.mIndex++];
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}
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};
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var utils = this.mParentWindow.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
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.getInterface(Components.interfaces.nsIDOMWindowUtils);
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for (var i = 0; i < this.mFilesEnumerator.mFiles.length; ++i) {
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var file = utils.wrapDOMFile(this.mFilesEnumerator.mFiles[i]);
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this.mDOMFilesEnumerator.mFiles.push(file);
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}
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}
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return this.mDOMFilesEnumerator;
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},
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/* readonly attribute nsIURI fileURL; */
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get fileURL() {
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if (this.mFileURL)
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return this.mFileURL;
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if (!this.mFilesEnumerator)
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return null;
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var ioService = Components.classes["@mozilla.org/network/io-service;1"]
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.getService(Components.interfaces.nsIIOService);
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return this.mFileURL = ioService.newFileURI(this.file);
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},
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/* attribute wstring defaultString; */
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set defaultString(a) { this.mDefaultString = a; },
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get defaultString() { return this.mDefaultString; },
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/* attribute wstring defaultExtension */
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set defaultExtension(ext) { },
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get defaultExtension() { return ""; },
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/* attribute long filterIndex; */
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set filterIndex(a) { this.mFilterIndex = a; },
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get filterIndex() { return this.mFilterIndex; },
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/* attribute boolean addToRecentDocs; */
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set addToRecentDocs(a) {},
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get addToRecentDocs() { return false; },
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/* readonly attribute short mode; */
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get mode() { return this.mMode; },
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/* members */
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mFilesEnumerator: undefined,
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mDOMFilesEnumerator: undefined,
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mParentWindow: null,
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/* methods */
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init: function(parent, title, mode) {
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this.mParentWindow = parent;
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this.mTitle = title;
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this.mMode = mode;
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},
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appendFilters: function(filterMask) {
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if (filterMask & nsIFilePicker.filterHTML) {
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this.appendFilter(titleBundle.GetStringFromName("htmlTitle"),
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filterBundle.GetStringFromName("htmlFilter"));
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}
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if (filterMask & nsIFilePicker.filterText) {
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this.appendFilter(titleBundle.GetStringFromName("textTitle"),
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filterBundle.GetStringFromName("textFilter"));
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}
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if (filterMask & nsIFilePicker.filterImages) {
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this.appendFilter(titleBundle.GetStringFromName("imageTitle"),
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filterBundle.GetStringFromName("imageFilter"));
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}
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if (filterMask & nsIFilePicker.filterXML) {
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this.appendFilter(titleBundle.GetStringFromName("xmlTitle"),
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filterBundle.GetStringFromName("xmlFilter"));
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}
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if (filterMask & nsIFilePicker.filterXUL) {
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this.appendFilter(titleBundle.GetStringFromName("xulTitle"),
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filterBundle.GetStringFromName("xulFilter"));
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}
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this.mAllowURLs = !!(filterMask & nsIFilePicker.filterAllowURLs);
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if (filterMask & nsIFilePicker.filterApps) {
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// We use "..apps" as a special filter for executable files
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this.appendFilter(titleBundle.GetStringFromName("appsTitle"),
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"..apps");
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}
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if (filterMask & nsIFilePicker.filterAudio) {
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this.appendFilter(titleBundle.GetStringFromName("audioTitle"),
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filterBundle.GetStringFromName("audioFilter"));
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}
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if (filterMask & nsIFilePicker.filterVideo) {
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this.appendFilter(titleBundle.GetStringFromName("videoTitle"),
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filterBundle.GetStringFromName("videoFilter"));
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}
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if (filterMask & nsIFilePicker.filterAll) {
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this.appendFilter(titleBundle.GetStringFromName("allTitle"),
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filterBundle.GetStringFromName("allFilter"));
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}
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},
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appendFilter: function(title, extensions) {
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this.mFilterTitles.push(title);
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this.mFilters.push(extensions);
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},
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open: function(aFilePickerShownCallback) {
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var tm = Components.classes["@mozilla.org/thread-manager;1"]
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.getService(Components.interfaces.nsIThreadManager);
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tm.mainThread.dispatch(function() {
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let result = Components.interfaces.nsIFilePicker.returnCancel;
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try {
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result = this.show();
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} catch(ex) {
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}
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if (aFilePickerShownCallback) {
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aFilePickerShownCallback.done(result);
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}
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}.bind(this), Components.interfaces.nsIThread.DISPATCH_NORMAL);
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},
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show: function() {
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var o = new Object();
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o.title = this.mTitle;
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o.mode = this.mMode;
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o.displayDirectory = this.mDisplayDirectory;
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o.defaultString = this.mDefaultString;
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o.filterIndex = this.mFilterIndex;
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o.filters = new Object();
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o.filters.titles = this.mFilterTitles;
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o.filters.types = this.mFilters;
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o.allowURLs = this.mAllowURLs;
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o.retvals = new Object();
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var parent;
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if (this.mParentWindow) {
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parent = this.mParentWindow;
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} else if (typeof(window) == "object" && window != null) {
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parent = window;
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} else {
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try {
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var appShellService = Components.classes[APPSHELL_SERV_CONTRACTID].getService(nsIAppShellService);
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parent = appShellService.hiddenDOMWindow;
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} catch(ex) {
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debug("Can't get parent. xpconnect hates me so we can't get one from the appShellService.\n");
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debug(ex + "\n");
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}
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}
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var parentWin = null;
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try {
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parentWin = parent.QueryInterface(nsIInterfaceRequestor)
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.getInterface(nsIWebNavigation)
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.QueryInterface(nsIDocShellTreeItem)
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.treeOwner
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.QueryInterface(nsIInterfaceRequestor)
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.getInterface(nsIBaseWindow);
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} catch(ex) {
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dump("file picker couldn't get base window\n"+ex+"\n");
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}
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try {
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parent.openDialog("chrome://global/content/filepicker.xul",
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"",
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"chrome,modal,titlebar,resizable=yes,dependent=yes",
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o);
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this.mFilterIndex = o.retvals.filterIndex;
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this.mFilesEnumerator = o.retvals.files;
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this.mFileURL = o.retvals.fileURL;
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lastDirectory = o.retvals.directory;
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return o.retvals.buttonStatus;
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} catch(ex) { dump("unable to open file picker\n" + ex + "\n"); }
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return null;
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}
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}
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if (DEBUG)
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debug = function (s) { dump("-*- filepicker: " + s + "\n"); };
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else
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debug = function (s) {};
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory([nsFilePicker]);
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/* crap from strres.js that I want to use for string bundles since I can't include another .js file.... */
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var strBundleService = null;
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function srGetStrBundle(path)
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{
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var strBundle = null;
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if (!strBundleService) {
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try {
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strBundleService = Components.classes[STRBUNDLE_SERV_CONTRACTID].getService(nsIStringBundleService);
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} catch (ex) {
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dump("\n--** strBundleService createInstance failed **--\n");
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return null;
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}
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}
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strBundle = strBundleService.createBundle(path);
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if (!strBundle) {
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dump("\n--** strBundle createInstance failed **--\n");
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}
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return strBundle;
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}
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