1 files changed, 302 insertions, 0 deletions
diff --git a/mobile/android/components/FilePicker.js b/mobile/android/components/FilePicker.js
new file mode 100644
index 000000000..2de81ca46
--- /dev/null
+++ b/mobile/android/components/FilePicker.js
@@ -0,0 +1,302 @@
+/* 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");
+
+Cu.importGlobalProperties(['File']);
+
+function FilePicker() {
+}
+
+FilePicker.prototype = {
+  _mimeTypeFilter: 0,
+  _extensionsFilter: "",
+  _defaultString: "",
+  _domWin: null,
+  _defaultExtension: null,
+  _displayDirectory: null,
+  _filePath: null,
+  _promptActive: false,
+  _filterIndex: 0,
+  _addToRecentDocs: false,
+  _title: "",
+
+  init: function(aParent, aTitle, aMode) {
+    this._domWin = aParent;
+    this._mode = aMode;
+    this._title = aTitle;
+    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;
+    });
+  },
+
+  // We don't support directory selection yet.
+  get domFileOrDirectory() {
+    let f = this.file;
+    if (!f) {
+        return null;
+    }
+
+    let win = this._domWin;
+    if (win) {
+      let utils = win.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
+      return utils.wrapDOMFile(f);
+    }
+
+    return File.createFromNsIFile(f);
+  },
+
+  get domFileOrDirectoryEnumerator() {
+    let win = this._domWin;
+    return this.getEnumerator([this.file], function(file) {
+      if (win) {
+        let utils = win.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
+        return utils.wrapDOMFile(file);
+      }
+
+      return File.createFromNsIFile(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,
+      title: this._title,
+    };
+
+    // 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]);