The Tor Browser: mobile/android/components/FilePicker.js@6474c204b198 (annotated)

mobile/android/components/FilePicker.js@6474c204b198 (annotated)

mobile/android/components/FilePicker.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* 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;
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
 Cu.import("resource://gre/modules/FileUtils.jsm");
 function FilePicker() {
 }
 FilePicker.prototype = {
   _mimeTypeFilter: 0,
   _extensionsFilter: "",
   _defaultString: "",
   _domWin: null,
   _defaultExtension: null,
   _displayDirectory: null,
   _filePath: null,
   _promptActive: false,
   _filterIndex: 0,
   _addToRecentDocs: false,
   init: function(aParent, aTitle, aMode) {
     this._domWin = aParent;
     this._mode = aMode;
     Services.obs.addObserver(this, "FilePicker:Result", false);
     let idService = Cc["@mozilla.org/uuid-generator;1"].getService(Ci.nsIUUIDGenerator);
     this.guid = idService.generateUUID().toString();
     if (aMode != Ci.nsIFilePicker.modeOpen && aMode != Ci.nsIFilePicker.modeOpenMultiple)
       throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
   },
   appendFilters: function(aFilterMask) {
     if (aFilterMask & Ci.nsIFilePicker.filterAudio) {
       this._mimeTypeFilter = "audio/*";
       return;
     }
     if (aFilterMask & Ci.nsIFilePicker.filterImages) {
       this._mimeTypeFilter = "image/*";
       return;
     }
     if (aFilterMask & Ci.nsIFilePicker.filterVideo) {
       this._mimeTypeFilter = "video/*";
       return;
     }
     if (aFilterMask & Ci.nsIFilePicker.filterAll) {
       this._mimeTypeFilter = "*/*";
       return;
     }
     /* From BaseFilePicker.cpp */
     if (aFilterMask & Ci.nsIFilePicker.filterHTML) {
       this.appendFilter("*.html; *.htm; *.shtml; *.xhtml");
     }
     if (aFilterMask & Ci.nsIFilePicker.filterText) {
       this.appendFilter("*.txt; *.text");
     }
     if (aFilterMask & Ci.nsIFilePicker.filterXML) {
       this.appendFilter("*.xml");
     }
     if (aFilterMask & Ci.nsIFilePicker.xulFilter) {
       this.appendFilter("*.xul");
     }
     if (aFilterMask & Ci.nsIFilePicker.xulFilter) {
       this.appendFilter("..apps");
     }
   },
   appendFilter: function(title, filter) {
     if (this._extensionsFilter)
         this._extensionsFilter += ", ";
     this._extensionsFilter += filter;
   },
   get defaultString() {
     return this._defaultString;
   },
   set defaultString(defaultString) {
     this._defaultString = defaultString;
   },
   get defaultExtension() {
     return this._defaultExtension;
   },
   set defaultExtension(defaultExtension) {
     this._defaultExtension = defaultExtension;
   },
   get filterIndex() {
     return this._filterIndex;
   },
   set filterIndex(val) {
     this._filterIndex = val;
   },
   get displayDirectory() {
     return this._displayDirectory;
   },
   set displayDirectory(dir) {
     this._displayDirectory = dir;
   },
   get file() {
     if (!this._filePath) {
         return null;
     }
     return new FileUtils.File(this._filePath);
   },
   get fileURL() {
     let file = this.getFile();
     return Services.io.newFileURI(file);
   },
   get files() {
     return this.getEnumerator([this.file], function(file) {
       return file;
     });
   },
   get domfile() {
     let f = this.file;
     if (!f) {
         return null;
     }
     return File(f);
   },
   get domfiles() {
     return this.getEnumerator([this.file], function(file) {
       return File(file);
     });
   },
   get addToRecentDocs() {
     return this._addToRecentDocs;
   },
   set addToRecentDocs(val) {
     this._addToRecentDocs = val;
   },
   get mode() {
     return this._mode;
   },
   show: function() {
     if (this._domWin) {
       this.fireDialogEvent(this._domWin, "DOMWillOpenModalDialog");
       let winUtils = this._domWin.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
       winUtils.enterModalState();
     }
     this._promptActive = true;
     this._sendMessage();
     let thread = Services.tm.currentThread;
     while (this._promptActive)
       thread.processNextEvent(true);
     delete this._promptActive;
     if (this._domWin) {
       let winUtils = this._domWin.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
       winUtils.leaveModalState();
       this.fireDialogEvent(this._domWin, "DOMModalDialogClosed");
     }
     if (this._filePath)
       return Ci.nsIFilePicker.returnOK;
     return Ci.nsIFilePicker.returnCancel;
   },
   open: function(callback) {
     this._callback = callback;
     this._sendMessage();
   },
   _sendMessage: function() {
     let msg = {
       type: "FilePicker:Show",
       guid: this.guid,
     };
     // Knowing the window lets us destroy any temp files when the tab is closed
     // Other consumers of the file picker may have to either wait for Android
     // to clean up the temp dir (not guaranteed) or clean up after themselves.
     let win = Services.wm.getMostRecentWindow('navigator:browser');
     let tab = win.BrowserApp.getTabForWindow(this._domWin.top)
     if (tab) {
       msg.tabId = tab.id;
     }
     if (!this._extensionsFilter && !this._mimeTypeFilter) {
       // If neither filters is set show anything we can.
       msg.mode = "mimeType";
       msg.mimeType = "*/*";
     } else if (this._extensionsFilter) {
       msg.mode = "extension";
       msg.extensions = this._extensionsFilter;
     } else {
       msg.mode = "mimeType";
       msg.mimeType = this._mimeTypeFilter;
     }
     this.sendMessageToJava(msg);
   },
   sendMessageToJava: function(aMsg) {
     Services.androidBridge.handleGeckoMessage(aMsg);
   },
   observe: function(aSubject, aTopic, aData) {
     let data = JSON.parse(aData);
     if (data.guid != this.guid)
       return;
     this._filePath = null;
     if (data.file)
       this._filePath = data.file;
     this._promptActive = false;
     if (this._callback) {
       this._callback.done(this._filePath ? Ci.nsIFilePicker.returnOK : Ci.nsIFilePicker.returnCancel);
     }
     delete this._callback;
   },
   getEnumerator: function(files, mapFunction) {
     return {
       QueryInterface: XPCOMUtils.generateQI([Ci.nsISimpleEnumerator]),
       mFiles: files,
       mIndex: 0,
       hasMoreElements: function() {
         return (this.mIndex < this.mFiles.length);
       },
       getNext: function() {
         if (this.mIndex >= this.mFiles.length) {
           throw Components.results.NS_ERROR_FAILURE;
         }
         return mapFunction(this.mFiles[this.mIndex++]);
       }
     };
   },
   fireDialogEvent: function(aDomWin, aEventName) {
     // accessing the document object can throw if this window no longer exists. See bug 789888.
     try {
       if (!aDomWin.document)
         return;
       let event = aDomWin.document.createEvent("Events");
       event.initEvent(aEventName, true, true);
       let winUtils = aDomWin.QueryInterface(Ci.nsIInterfaceRequestor)
                            .getInterface(Ci.nsIDOMWindowUtils);
       winUtils.dispatchEventToChromeOnly(aDomWin, event);
     } catch(ex) {
     }
   },
   classID: Components.ID("{18a4e042-7c7c-424b-a583-354e68553a7f}"),
   QueryInterface: XPCOMUtils.generateQI([Ci.nsIFilePicker, Ci.nsIObserver])
 };
 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([FilePicker]);