Bug 412822 nsIFilePicker makes it hard to drop in other url systems

r=neil a=dsicore

embedding/browser/gtk/src/EmbedFilePicker.cpp

@@ -132,12 +132,11 @@ NS_IMETHODIMP EmbedFilePicker::GetFile(nsILocalFile **aFile)
 {
 
   NS_ENSURE_ARG_POINTER(aFile);
-
-  if (mFilename.IsEmpty())
-    return NS_OK;
-
+  *aFile = nsnull;
   nsCOMPtr<nsIURI> baseURI;
-  nsresult rv = NS_NewURI(getter_AddRefs(baseURI), mFilename);
+  nsresult rv = GetFileURL(getter_AddRefs(baseURI));
+  if (!baseURI)
+    return rv;
 
   nsCOMPtr<nsIFileURL> fileURL(do_QueryInterface(baseURI, &rv));
   NS_ENSURE_SUCCESS(rv, rv);
@@ -162,19 +161,14 @@ NS_IMETHODIMP EmbedFilePicker::GetFile(nsILocalFile **aFile)
 }
 
 /* readonly attribute nsIFileURL fileURL; */
-NS_IMETHODIMP EmbedFilePicker::GetFileURL(nsIFileURL **aFileURL)
+NS_IMETHODIMP EmbedFilePicker::GetFileURL(nsIURI **aFileURL)
 {
   NS_ENSURE_ARG_POINTER(aFileURL);
   *aFileURL = nsnull;
-
-  nsCOMPtr<nsILocalFile> file;
-  GetFile(getter_AddRefs(file));
-  NS_ENSURE_TRUE(file, NS_ERROR_FAILURE);
-  nsCOMPtr<nsIFileURL> fileURL = do_CreateInstance(NS_STANDARDURL_CONTRACTID);
-  NS_ENSURE_TRUE(fileURL, NS_ERROR_OUT_OF_MEMORY);
-  fileURL->SetFile(file);
-  NS_ADDREF(*aFileURL = fileURL);
+  if (mFileURI.IsEmpty())
   return NS_OK;
+
+  return NS_NewURI(aFileURL, mFileURI);
 }
 
 /* readonly attribute nsISimpleEnumerator files; */
@@ -204,7 +198,7 @@ NS_IMETHODIMP EmbedFilePicker::Show(PRInt16 *_retval)
 
   *_retval = response ? nsIFilePicker::returnOK : nsIFilePicker::returnCancel;
 
-  mFilename = retname;
+  mFileURI = retname;
   if (retname)
     NS_Free(retname);
 

embedding/browser/gtk/src/EmbedFilePicker.h

@@ -69,7 +69,7 @@ public:
 protected:
   nsIDOMWindow *mParent;
   PRInt16 mMode;
-  nsCString mFilename;
+  nsCString mFileURI;
 
 private:
   ~EmbedFilePicker();

toolkit/components/filepicker/content/filepicker.js

@@ -45,6 +45,7 @@
 const nsIFilePicker       = Components.interfaces.nsIFilePicker;
 const nsIProperties       = Components.interfaces.nsIProperties;
 const NS_DIRECTORYSERVICE_CONTRACTID = "@mozilla.org/file/directory_service;1";
+const NS_IOSERVICE_CONTRACTID = "@mozilla.org/network/io-service;1";
 const nsITreeBoxObject = Components.interfaces.nsITreeBoxObject;
 const nsIFileView = Components.interfaces.nsIFileView;
 const NS_FILEVIEW_CONTRACTID = "@mozilla.org/filepicker/fileview;1";
@@ -59,6 +60,7 @@ var retvals;
 var filePickerMode;
 var homeDir;
 var treeView;
+var allowURLs;
 
 var textInput;
 var okButton;
@@ -91,6 +93,7 @@ function filepickerLoad() {
     const numFilters = filterTitles.length;
 
     document.title = title;
+    allowURLs = o.allowURLs;
 
     if (initialText) {
       textInput.value = initialText;
@@ -235,9 +238,28 @@ function selectOnOK()
   var isDir = false;
   var isFile = false;
 
-  var fileList = processPath(textInput.value);
+  retvals.filterIndex = document.getElementById("filterMenuList");
+  retvals.fileURL = null;
 
-  if (!fileList) { // generic error message, should probably never happen
+  if (allowURLs) {
+    try {
+      var ios = Components.classes[NS_IOSERVICE_CONTRACTID].getService(Components.interfaces.nsIIOService);
+      retvals.fileURL = ios.newURI(textInput.value, '', null);
+      var fileList = [];
+      if (retvals.fileURL instanceof Components.interfaces.nsIFileURL)
+        fileList.push(retvals.fileURL.nsIFileURL.file);
+      gFilesEnumerator.mFiles = fileList;
+      retvals.files = gFilesEnumerator;
+      retvals.buttonStatus = ret;
+
+      return true;
+    } catch (e) {
+    }
+  }
+
+  var fileList = processPath(textInput.value);
+  if (!fileList) {
+    // generic error message, should probably never happen
     showErrorDialog("errorPathProblemTitle",
                     "errorPathProblemMessage",
                     textInput.value);
@@ -377,9 +399,6 @@ function selectOnOK()
 
   retvals.files = gFilesEnumerator;
   retvals.buttonStatus = ret;
-
-  var filterMenuList = document.getElementById("filterMenuList");
-  retvals.filterIndex = filterMenuList.selectedIndex;
   
   return (ret != nsIFilePicker.returnCancel);
 }

widget/public/nsIFilePicker.idl

@@ -40,11 +40,11 @@
 #include "nsISupports.idl"
 
 interface nsILocalFile;
-interface nsIFileURL;
+interface nsIURI;
 interface nsIDOMWindow;
 interface nsISimpleEnumerator;
 
-[scriptable, uuid(80faf095-c807-4558-a2cc-185ed70754ea)]
+[scriptable, uuid(d24ef0aa-d555-4117-84af-9cbbb7406909)]
 interface nsIFilePicker : nsISupports
 {
   const short modeOpen        = 0;              // Load a file or directory
@@ -63,6 +63,7 @@ interface nsIFilePicker : nsISupports
   const long filterXML        = 0x10;           // *.xml
   const long filterXUL        = 0x20;           // *.xul
   const long filterApps       = 0x40;           // Applications (per-platform implementation)
+  const long filterAllowURLs  = 0x80;           // Allow URLs
 
  /**
   * Initialize the file picker widget.  The file picker is not valid until this
@@ -132,11 +133,11 @@ interface nsIFilePicker : nsISupports
   readonly attribute nsILocalFile file;
 
  /**
-  * Get the nsIFileURL for the file or directory.
+  * Get the nsIURL for the file or directory.
   *
   * @return Returns the file currently selected
   */
-  readonly attribute nsIFileURL fileURL;
+  readonly attribute nsIURI fileURL;
 
  /**
   * Get the enumerator for the selected files

widget/src/beos/nsFilePicker.cpp

@@ -46,7 +46,6 @@
 #include "nsFilePicker.h"
 #include "nsILocalFile.h"
 #include "nsIURL.h"
-#include "nsIFileURL.h"
 #include "nsIStringBundle.h"
 #include "nsReadableUtils.h"
 #include "nsEscape.h"
@@ -292,20 +291,15 @@ NS_IMETHODIMP nsFilePicker::GetFiles(nsISimpleEnumerator **aFiles)
 
 //-------------------------------------------------------------------------
 
-NS_IMETHODIMP nsFilePicker::GetFileURL(nsIFileURL **aFileURL)
+NS_IMETHODIMP nsFilePicker::GetFileURL(nsIURI **aFileURL)
 {
-	nsCOMPtr<nsILocalFile> file(do_CreateInstance("@mozilla.org/file/local;1"));
-	NS_ENSURE_TRUE(file, NS_ERROR_FAILURE);
-	file->InitWithNativePath(mFile);
+	*aFileURL = nsnull;
+	nsCOMPtr<nsILocalFile> file;
+	nsresult rv = GetFile(getter_AddRefs(file));
+	if (!file)
+		return rv;
 
-	nsCOMPtr<nsIURI> uri;
-	NS_NewFileURI(getter_AddRefs(uri), file);
-	nsCOMPtr<nsIFileURL> fileURL(do_QueryInterface(uri));
-	NS_ENSURE_TRUE(fileURL, NS_ERROR_FAILURE);
-
-	NS_ADDREF(*aFileURL = fileURL);
-
-	return NS_OK;
+	return NS_NewFileURI(aFileURL, file);
 }
 
 //-------------------------------------------------------------------------

widget/src/beos/nsFilePicker.h

@@ -82,7 +82,7 @@ public:
   NS_IMETHOD GetDefaultExtension(nsAString& aDefaultExtension);
   NS_IMETHOD SetDefaultExtension(const nsAString& aDefaultExtension);
   NS_IMETHOD GetFile(nsILocalFile * *aFile);
-  NS_IMETHOD GetFileURL(nsIFileURL * *aFileURL);
+  NS_IMETHOD GetFileURL(nsIURI * *aFileURL);
   NS_IMETHOD GetFiles(nsISimpleEnumerator **aFiles);
   NS_IMETHOD Show(PRInt16 *_retval);
   NS_IMETHOD AppendFilter(const nsAString& aTitle, const nsAString& aFilter);

widget/src/cocoa/nsFilePicker.h

@@ -73,7 +73,7 @@ public:
   NS_IMETHOD SetFilterIndex(PRInt32 aFilterIndex);
   NS_IMETHOD SetDefaultExtension(const nsAString& aDefaultExtension);
   NS_IMETHOD GetFile(nsILocalFile * *aFile);
-  NS_IMETHOD GetFileURL(nsIFileURL * *aFileURL);
+  NS_IMETHOD GetFileURL(nsIURI * *aFileURL);
   NS_IMETHOD GetFiles(nsISimpleEnumerator **aFiles);
   NS_IMETHOD Show(PRInt16 *_retval); 
   NS_IMETHOD AppendFilter(const nsAString& aTitle, const nsAString& aFilter);

widget/src/cocoa/nsFilePicker.mm

@@ -56,7 +56,6 @@
 #include "nsILocalFile.h"
 #include "nsILocalFileMac.h"
 #include "nsIURL.h"
-#include "nsIFileURL.h"
 #include "nsArrayEnumerator.h"
 #include "nsIStringBundle.h"
 
@@ -540,7 +539,7 @@ NS_IMETHODIMP nsFilePicker::GetFile(nsILocalFile **aFile)
 }
 
 //-------------------------------------------------------------------------
-NS_IMETHODIMP nsFilePicker::GetFileURL(nsIFileURL **aFileURL)
+NS_IMETHODIMP nsFilePicker::GetFileURL(nsIURI **aFileURL)
 {
   NS_ENSURE_ARG_POINTER(aFileURL);
   *aFileURL = nsnull;
@@ -548,15 +547,7 @@ NS_IMETHODIMP nsFilePicker::GetFileURL(nsIFileURL **aFileURL)
   if (mFiles.Count() == 0)
     return NS_OK;
 
-  nsCOMPtr<nsIURI> uri;
-  nsresult rv = NS_NewFileURI(getter_AddRefs(uri), mFiles.ObjectAt(0));
-  if (NS_FAILED(rv)) return rv;
-
-  nsCOMPtr<nsIFileURL> fileURL(do_QueryInterface(uri));
-  NS_ENSURE_TRUE(fileURL, NS_ERROR_FAILURE);
-  
-  NS_ADDREF(*aFileURL = fileURL);
-  return NS_OK;
+  return NS_NewFileURI(aFileURL, mFiles.ObjectAt(0));
 }
 
 //-------------------------------------------------------------------------

widget/src/gtk2/nsFilePicker.cpp

@@ -88,6 +88,8 @@ typedef enum
 
 typedef gchar* (*_gtk_file_chooser_get_filename_fn)(GtkFileChooser *chooser);
 typedef GSList* (*_gtk_file_chooser_get_filenames_fn)(GtkFileChooser *chooser);
+typedef gchar* (*_gtk_file_chooser_get_uri_fn)(GtkFileChooser *chooser);
+typedef GSList* (*_gtk_file_chooser_get_uris_fn)(GtkFileChooser *chooser);
 typedef GtkWidget* (*_gtk_file_chooser_dialog_new_fn)(const gchar *title,
                                                       GtkWindow *parent,
                                                       GtkFileChooserAction action,
@@ -110,10 +112,12 @@ typedef void (*_gtk_image_set_from_pixbuf_fn)(GtkImage *image, GdkPixbuf *pixbuf
 typedef void (*_gtk_file_chooser_set_preview_widget_fn)(GtkFileChooser *chooser, GtkWidget *preview_widget);
 typedef GtkWidget* (*_gtk_image_new_fn)();
 typedef void (*_gtk_misc_set_padding_fn)(GtkMisc *misc, gint xpad, gint ypad);
-
+typedef void (*_gtk_file_chooser_set_local_only_fn)(GtkFileChooser *chooser, gboolean local_only);
 
 DECL_FUNC_PTR(gtk_file_chooser_get_filename);
 DECL_FUNC_PTR(gtk_file_chooser_get_filenames);
+DECL_FUNC_PTR(gtk_file_chooser_get_uri);
+DECL_FUNC_PTR(gtk_file_chooser_get_uris);
 DECL_FUNC_PTR(gtk_file_chooser_dialog_new);
 DECL_FUNC_PTR(gtk_file_chooser_set_select_multiple);
 DECL_FUNC_PTR(gtk_file_chooser_set_do_overwrite_confirmation);
@@ -132,6 +136,7 @@ DECL_FUNC_PTR(gtk_image_set_from_pixbuf);
 DECL_FUNC_PTR(gtk_file_chooser_set_preview_widget);
 DECL_FUNC_PTR(gtk_image_new);
 DECL_FUNC_PTR(gtk_misc_set_padding);
+DECL_FUNC_PTR(gtk_file_chooser_set_local_only);
 
 static GtkWindow *
 get_gtk_window_for_nsiwidget(nsIWidget *widget)
@@ -204,6 +209,8 @@ nsFilePicker::LoadSymbolsGTK24()
   }
 
   GET_LIBGTK_FUNC(gtk_file_chooser_get_filenames);
+  GET_LIBGTK_FUNC(gtk_file_chooser_get_uri);
+  GET_LIBGTK_FUNC(gtk_file_chooser_get_uris);
   GET_LIBGTK_FUNC(gtk_file_chooser_dialog_new);
   GET_LIBGTK_FUNC(gtk_file_chooser_set_select_multiple);
   GET_LIBGTK_FUNC_OPT(gtk_file_chooser_set_do_overwrite_confirmation);
@@ -222,6 +229,7 @@ nsFilePicker::LoadSymbolsGTK24()
   GET_LIBGTK_FUNC(gtk_file_chooser_set_preview_widget);
   GET_LIBGTK_FUNC(gtk_image_new);
   GET_LIBGTK_FUNC(gtk_misc_set_padding);
+  GET_LIBGTK_FUNC(gtk_file_chooser_set_local_only);
 
   initialized = PR_TRUE;
 
@@ -340,17 +348,17 @@ ReadMultipleFiles(gpointer filename, gpointer array)
 void
 nsFilePicker::ReadValuesFromFileChooser(GtkWidget *file_chooser)
 {
-  mFiles.Clear();
+  mFilesURL.Clear();
 
   if (mMode == nsIFilePicker::modeOpenMultiple) {
-    mFile.Truncate();
+    mFileURL.Truncate();
 
     GSList *list = _gtk_file_chooser_get_filenames (GTK_FILE_CHOOSER(file_chooser));
     g_slist_foreach(list, ReadMultipleFiles, static_cast<gpointer>(&mFiles));
     g_slist_free(list);
   } else {
-    gchar *filename = _gtk_file_chooser_get_filename (GTK_FILE_CHOOSER(file_chooser));
-    mFile.Assign(filename);
+    gchar *filename = _gtk_file_chooser_get_uri (GTK_FILE_CHOOSER(file_chooser));
+    mFileURL.Assign(filename);
     g_free(filename);
   }
 
@@ -397,6 +405,7 @@ nsFilePicker::InitNative(nsIWidget *aParent,
 NS_IMETHODIMP
 nsFilePicker::AppendFilters(PRInt32 aFilterMask)
 {
+  mAllowURLs = !!(aFilterMask & filterAllowURLs);
   return nsBaseFilePicker::AppendFilters(aFilterMask);
 }
 
@@ -471,31 +480,26 @@ nsFilePicker::GetFile(nsILocalFile **aFile)
   NS_ENSURE_ARG_POINTER(aFile);
 
   *aFile = nsnull;
-  if (mFile.IsEmpty()) {
-    return NS_OK;
-  }
+  nsCOMPtr<nsIURI> uri;
+  nsresult rv = GetFileURL(getter_AddRefs(uri));
+  if (!uri)
+    return rv;
 
-  nsCOMPtr<nsILocalFile> file(do_CreateInstance("@mozilla.org/file/local;1"));
-  NS_ENSURE_TRUE(file, NS_ERROR_FAILURE);
+  nsCOMPtr<nsIFileURL> fileURL(do_QueryInterface(uri, &rv));
+  NS_ENSURE_SUCCESS(rv, rv);
 
-  file->InitWithNativePath(mFile);
+  nsCOMPtr<nsIFile> file;
+  rv = fileURL->GetFile(getter_AddRefs(file));
+  NS_ENSURE_SUCCESS(rv, rv);
 
-  NS_ADDREF(*aFile = file);
-
-  return NS_OK;
+  return CallQueryInterface(file, aFile);
 }
 
 NS_IMETHODIMP
-nsFilePicker::GetFileURL(nsIFileURL **aFileURL)
+nsFilePicker::GetFileURL(nsIURI **aFileURL)
 {
-  nsCOMPtr<nsILocalFile> file;
-  GetFile(getter_AddRefs(file));
-
-  nsCOMPtr<nsIURI> uri;
-  NS_NewFileURI(getter_AddRefs(uri), file);
-  NS_ENSURE_TRUE(uri, NS_ERROR_FAILURE);
-
-  return CallQueryInterface(uri, aFileURL);
+  *aFileURL = nsnull;
+  return NS_NewFileURI(aFileURL, mFileURL);
 }
 
 NS_IMETHODIMP
@@ -573,6 +577,9 @@ nsFilePicker::Show(PRInt16 *aReturn)
                                    GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                                    accept_button, GTK_RESPONSE_ACCEPT,
                                    NULL);
+  if (mAllowURLs) {
+    _gtk_file_chooser_set_local_only(GTK_FILE_CHOOSER(file_chooser), FALSE);
+  }
 
   if (mMode == GTK_FILE_CHOOSER_ACTION_OPEN || mMode == GTK_FILE_CHOOSER_ACTION_SAVE) {
     GtkWidget *img_preview = _gtk_image_new();

widget/src/gtk2/nsFilePicker.h

@@ -68,7 +68,7 @@ public:
   NS_IMETHODIMP GetFilterIndex(PRInt32 *aFilterIndex);
   NS_IMETHODIMP SetFilterIndex(PRInt32 aFilterIndex);
   NS_IMETHODIMP GetFile(nsILocalFile **aFile);
-  NS_IMETHODIMP GetFileURL(nsIFileURL **aFileURL);
+  NS_IMETHODIMP GetFileURL(nsIURI **aFileURL);
   NS_IMETHODIMP GetFiles(nsISimpleEnumerator **aFiles);
   NS_IMETHODIMP Show(PRInt16 *aReturn);
 
@@ -86,7 +86,8 @@ protected:
 
   PRInt16   mMode;
   PRInt16   mSelectedType;
-  nsCString mFile;
+  PRBool    mAllowURLs;
+  nsCString mFileURL;
   nsString  mTitle;
   nsString  mDefault;
   nsString  mDefaultExtension;

widget/src/os2/nsFilePicker.cpp

@@ -51,7 +51,6 @@
 #include "nsFilePicker.h"
 #include "nsILocalFile.h"
 #include "nsIURL.h"
-#include "nsIFileURL.h"
 #include "nsIStringBundle.h"
 #include "nsEnumeratorUtils.h"
 #include "nsCRT.h"
@@ -400,20 +399,15 @@ NS_IMETHODIMP nsFilePicker::GetFile(nsILocalFile **aFile)
 }
 
 //-------------------------------------------------------------------------
-NS_IMETHODIMP nsFilePicker::GetFileURL(nsIFileURL **aFileURL)
+NS_IMETHODIMP nsFilePicker::GetFileURL(nsIURI **aFileURL)
 {
-  nsCOMPtr<nsILocalFile> file(do_CreateInstance("@mozilla.org/file/local;1"));
-  NS_ENSURE_TRUE(file, NS_ERROR_FAILURE);
-  file->InitWithNativePath(mFile);
+  *aFileURL = nsnull;
+  nsCOMPtr<nsILocalFile> file;
+  nsresult rv = GetFile(getter_AddRefs(file));
+  if (!file)
+    return rv;
 
-  nsCOMPtr<nsIURI> uri;
-  NS_NewFileURI(getter_AddRefs(uri), file);
-  nsCOMPtr<nsIFileURL> fileURL(do_QueryInterface(uri));
-  NS_ENSURE_TRUE(fileURL, NS_ERROR_FAILURE);
-  
-  NS_ADDREF(*aFileURL = fileURL);
-
-  return NS_OK;
+  return NS_NewFileURI(aFileURL, file);
 }
 
 NS_IMETHODIMP nsFilePicker::GetFiles(nsISimpleEnumerator **aFiles)

widget/src/os2/nsFilePicker.h

@@ -70,7 +70,7 @@ public:
   NS_IMETHOD GetFilterIndex(PRInt32 *aFilterIndex);
   NS_IMETHOD SetFilterIndex(PRInt32 aFilterIndex);
   NS_IMETHOD GetFile(nsILocalFile * *aFile);
-  NS_IMETHOD GetFileURL(nsIFileURL * *aFileURL);
+  NS_IMETHOD GetFileURL(nsIURI * *aFileURL);
   NS_IMETHOD GetFiles(nsISimpleEnumerator **aFiles);
   NS_IMETHOD Show(PRInt16 *_retval); 
   NS_IMETHOD AppendFilter(const nsAString& aTitle, const nsAString& aFilter);

widget/src/photon/nsFilePicker.cpp

@@ -47,7 +47,6 @@
 #include "nsFilePicker.h"
 #include "nsILocalFile.h"
 #include "nsIURL.h"
-#include "nsIFileURL.h"
 #include "nsIStringBundle.h"
 #include "nsEnumeratorUtils.h"
 #include "nsCRT.h"
@@ -267,20 +266,15 @@ NS_IMETHODIMP nsFilePicker::GetFiles(nsISimpleEnumerator **aFiles)
 }
 
 //-------------------------------------------------------------------------
-NS_IMETHODIMP nsFilePicker::GetFileURL(nsIFileURL **aFileURL)
+NS_IMETHODIMP nsFilePicker::GetFileURL(nsIURI **aFileURL)
 {
-  nsCOMPtr<nsILocalFile> file(do_CreateInstance("@mozilla.org/file/local;1"));
-  NS_ENSURE_TRUE(file, NS_ERROR_FAILURE);
-  file->InitWithNativePath(mFile);
+  *aFileURL = nsnull;
+  nsCOMPtr<nsILocalFile> file;
+  nsresult rv = GetFile(getter_AddRefs(file));
+  if (!file)
+    return rv;
 
-  nsCOMPtr<nsIURI> uri;
-  NS_NewFileURI(getter_AddRefs(uri), file);
-  nsCOMPtr<nsIFileURL> fileURL(do_QueryInterface(uri));
-  NS_ENSURE_TRUE(fileURL, NS_ERROR_FAILURE);
-  
-  NS_ADDREF(*aFileURL = fileURL);
-
-  return NS_OK;
+  return NS_NewFileURI(aFileURL, file);
 }
 
 //-------------------------------------------------------------------------

widget/src/photon/nsFilePicker.h

@@ -68,7 +68,7 @@ public:
 	NS_IMETHOD GetFilterIndex(PRInt32 *aFilterIndex);
 	NS_IMETHOD SetFilterIndex(PRInt32 aFilterIndex);
   NS_IMETHOD GetFile(nsILocalFile * *aFile);
-  NS_IMETHOD GetFileURL(nsIFileURL * *aFileURL);
+  NS_IMETHOD GetFileURL(nsIURI * *aFileURL);
   NS_IMETHOD Show(PRInt16 *_retval); 
   NS_IMETHOD AppendFilter(const nsAString& aTitle, const nsAString& aFilter);
 	NS_IMETHOD GetFiles(nsISimpleEnumerator **aFiles);

widget/src/windows/nsFilePicker.cpp

@@ -49,7 +49,6 @@
 #include "nsFilePicker.h"
 #include "nsILocalFile.h"
 #include "nsIURL.h"
-#include "nsIFileURL.h"
 #include "nsIStringBundle.h"
 #include "nsEnumeratorUtils.h"
 #include "nsCRT.h"
@@ -406,6 +405,7 @@ NS_IMETHODIMP nsFilePicker::Show(PRInt16 *aReturnVal)
 NS_IMETHODIMP nsFilePicker::GetFile(nsILocalFile **aFile)
 {
   NS_ENSURE_ARG_POINTER(aFile);
+  *aFile = nsnull;
 
   if (mUnicodeFile.IsEmpty())
       return NS_OK;
@@ -422,20 +422,15 @@ NS_IMETHODIMP nsFilePicker::GetFile(nsILocalFile **aFile)
 }
 
 //-------------------------------------------------------------------------
-NS_IMETHODIMP nsFilePicker::GetFileURL(nsIFileURL **aFileURL)
+NS_IMETHODIMP nsFilePicker::GetFileURL(nsIURI **aFileURL)
 {
-  nsCOMPtr<nsILocalFile> file(do_CreateInstance("@mozilla.org/file/local;1"));
-  NS_ENSURE_TRUE(file, NS_ERROR_FAILURE);
-  file->InitWithPath(mUnicodeFile);
+  *aFileURL = nsnull;
+  nsCOMPtr<nsILocalFile> file;
+  nsresult rv = GetFile(getter_AddRefs(file));
+  if (!file)
+    return rv;
 
-  nsCOMPtr<nsIURI> uri;
-  NS_NewFileURI(getter_AddRefs(uri), file);
-  nsCOMPtr<nsIFileURL> fileURL(do_QueryInterface(uri));
-  NS_ENSURE_TRUE(fileURL, NS_ERROR_FAILURE);
-
-  NS_ADDREF(*aFileURL = fileURL);
-
-  return NS_OK;
+  return NS_NewFileURI(aFileURL, file);
 }
 
 NS_IMETHODIMP nsFilePicker::GetFiles(nsISimpleEnumerator **aFiles)

widget/src/windows/nsFilePicker.h

@@ -70,7 +70,7 @@ public:
   NS_IMETHOD GetFilterIndex(PRInt32 *aFilterIndex);
   NS_IMETHOD SetFilterIndex(PRInt32 aFilterIndex);
   NS_IMETHOD GetFile(nsILocalFile * *aFile);
-  NS_IMETHOD GetFileURL(nsIFileURL * *aFileURL);
+  NS_IMETHOD GetFileURL(nsIURI * *aFileURL);
   NS_IMETHOD GetFiles(nsISimpleEnumerator **aFiles);
   NS_IMETHOD Show(PRInt16 *aReturnVal); 
   NS_IMETHOD ShowW(PRInt16 *aReturnVal); 

xpfe/components/filepicker/src/nsFilePicker.js.in

@@ -116,16 +116,19 @@ nsFilePicker.prototype = {
   set files(a) { throw "readonly property"; },
   get files()  { return this.mFilesEnumerator; },
 
-  /* readonly attribute nsIFileURL fileURL; */
+  /* readonly attribute nsIURI fileURL; */
   set fileURL(a) { throw "readonly property"; },
   get fileURL()  {
-    if (this.mFilesEnumerator) {
+    if (this.mFileURL)
+      return this.mFileURL;
+
+    if (!this.mFilesEnumerator)
+      return null;
+
       var ioService = Components.classes["@mozilla.org/network/io-service;1"]
                     .getService(Components.interfaces.nsIIOService);
-      var url       = ioService.newFileURI(this.file);
-      return url;
-    }
-    return null;
+
+    return this.mFileURL = ioService.newFileURI(this.file);
   },
 
   /* attribute wstring defaultString; */
@@ -172,6 +175,7 @@ nsFilePicker.prototype = {
       this.appendFilter(bundle.GetStringFromName("xulTitle"),
                    bundle.GetStringFromName("xulFilter"));
     }
+    this.mAllowURLs = !!(filterMask & nsIFilePicker.filterAllowURLs);
     if (filterMask & nsIFilePicker.filterApps) {
       // We use "..apps" as a special filter for executable files
       this.appendFilter(bundle.GetStringFromName("appsTitle"),
@@ -207,6 +211,7 @@ nsFilePicker.prototype = {
     o.filters = new Object();
     o.filters.titles = this.mFilterTitles;
     o.filters.types = this.mFilters;
+    o.allowURLs = this.mAllowURLs;
     o.retvals = new Object();
 
     var parent;
@@ -247,6 +252,7 @@ nsFilePicker.prototype = {
 
       this.mFilterIndex = o.retvals.filterIndex;
       this.mFilesEnumerator = o.retvals.files;
+      this.mFileURL = o.retvals.fileURL;
       lastDirectory = o.retvals.directory;
       return o.retvals.buttonStatus;
     } catch(ex) { dump("unable to open file picker\n" + ex + "\n"); }