Mac: make save/open dialogs operate as tab-modal sheets....

chrome/browser/shell_dialogs.h

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_SHELL_DIALOGS_H_
 #define CHROME_BROWSER_SHELL_DIALOGS_H_
 
 #include <string>
 #include <vector>
 
 #include "base/file_path.h"
 #include "base/gfx/native_widget_types.h"
 #include "base/ref_counted.h"
 #include "base/string16.h"
 
+class TabContents;
+
 namespace gfx {
 class Font;
 }
 
 // A base class for shell dialogs.
 class BaseShellDialog {
  public:
   // Returns true if a shell dialog box is currently being shown modally
-  // to the specified owner.
+  // to the specified owner. (For tab-modals, one should provide a default
+  // implementations which just produces a window-modal; hence our default
+  // implementation just returns false.)
   virtual bool IsRunning(gfx::NativeWindow owning_window) const = 0;
+  virtual bool IsRunningInTab(const TabContents* parent_tab) const
+      { return false; }
 
   // Notifies the dialog box that the listener has been destroyed and it should
   // no longer be sent notifications.
   virtual void ListenerDestroyed() = 0;
 };
 
 // Shows a dialog box for selecting a file or a folder.
 class SelectFileDialog
     : public base::RefCountedThreadSafe<SelectFileDialog>,
       public BaseShellDialog {
@@ skipping 74 matching lines @@
   // NOTE: only one instance of any shell dialog can be shown per owning_window
   //       at a time (for obvious reasons).
   virtual void SelectFile(Type type,
                           const string16& title,
                           const FilePath& default_path,
                           const FileTypeInfo* file_types,
                           int file_type_index,
                           const FilePath::StringType& default_extension,
                           gfx::NativeWindow owning_window,
                           void* params) = 0;
+
+  // Same as SelectFile(), with nearly identical arguments, except that -- on
+  // platforms where this is supported -- it will display a tab-modal dialog box
+  // for the tab specified by |owning_tab| (if it is NULL, this will yield a
+  // modeless dialog). More than one instance can be shown per window.
+  virtual void SelectFileInTab(Type type,
+                               const string16& title,
+                               const FilePath& default_path,
+                               const FileTypeInfo* file_types,
+                               int file_type_index,
+                               const FilePath::StringType& default_extension,
+                               TabContents* owning_tab,
+                               void* params) = 0;
 };
 
 // Shows a dialog box for selecting a font.
 class SelectFontDialog
     : public base::RefCountedThreadSafe<SelectFileDialog>,
       public BaseShellDialog {
  public:
   virtual ~SelectFontDialog() {}
 
   // An interface implemented by a Listener object wishing to know about the
@@ skipping 33 matching lines @@
 
   // Same as above - also support specifying the default font selected in the
   // list when the dialog appears.
   virtual void SelectFont(gfx::NativeWindow owning_window,
                           void* params,
                           const std::wstring& font_name,
                           int font_size) = 0;
 };
 
 #endif  // CHROME_BROWSER_SHELL_DIALOGS_H_