Add chrome to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 159 insertions, 0 deletions

diff --git a/chrome/browser/shell_dialogs.h b/chrome/browser/shell_dialogs.h
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CHROME_BROWSER_SHELL_DIALOGS_H__
+#define CHROME_BROWSER_SHELL_DIALOGS_H__
+
+#include "base/ref_counted.h"
+
+class ChromeFont;
+
+// Helpers to show certain types of Windows shell dialogs in a way that doesn't
+// block the UI of the entire app.
+
+// A base class for shell dialogs.
+class BaseShellDialog {
+ public:
+  // Returns true if the a shell dialog box is currently being shown modally
+  // to the specified owner.
+  virtual bool IsRunning(HWND owning_hwnd) const = 0;
+
+  // 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 {
+ public:
+  enum Type {
+    SELECT_FOLDER,
+    SELECT_SAVEAS_FILE,
+    SELECT_OPEN_FILE
+  };
+
+  virtual ~SelectFileDialog() {}
+
+  // An interface implemented by a Listener object wishing to know about the
+  // the result of the Select File/Folder action. These callbacks must be
+  // re-entrant.
+  class Listener {
+   public:
+    // Notifies the Listener that a file/folder selection has been made. The
+    // file/folder path is in |selected_path|. |params| is contextual passed to
+    // SelectFile.
+    virtual void FileSelected(const std::wstring& path, void* params) = 0;
+
+    // Notifies the Listener that the file/folder selection was aborted (via
+    // the  user canceling or closing the selection dialog box, for example).
+    // |params| is contextual passed to SelectFile.
+    virtual void FileSelectionCanceled(void* params) {};
+  };
+
+  // Creates a dialog box helper. This object is ref-counted, but the returned
+  // object will have no reference (refcount is 0).
+  static SelectFileDialog* Create(Listener* listener);
+
+  // Selects a file. This will start displaying the dialog box. This will also
+  // block the calling HWND until the dialog box is complete. The listener
+  // associated with this object will be notified when the selection is
+  // complete.
+  // |type| is the type of file dialog to be shown, see Type enumeration above.
+  // |title| is the title to be displayed in the dialog. If this string is
+  // empty, the default title is used.
+  // |default_path| is the default path and suggested file name to be shown in
+  // the dialog. This only works for SELECT_SAVEAS_FILE and SELECT_OPEN_FILE.
+  // Can be an empty string to indicate Windows should choose the default to
+  // show.
+  // |owning_hwnd| is the window the dialog is modal to, or NULL for a modeless
+  // dialog.
+  // |params| is data from the calling context which will be passed through to
+  // the listener. Can be NULL.
+  // NOTE: only one instance of any shell dialog can be shown per owning_hwnd
+  //       at a time (for obvious reasons).
+  virtual void SelectFile(Type type,
+                          const std::wstring& title,
+                          const std::wstring& default_path,
+                          HWND owning_hwnd,
+                          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
+  // the result of the Select Font action. These callbacks must be
+  // re-entrant.
+  class Listener {
+   public:
+    // Notifies the Listener that a font selection has been made. The font
+    // details are supplied in |font|. |params| is contextual passed to
+    // SelectFile.
+    virtual void FontSelected(const ChromeFont& font, void* params) = 0;
+
+    // Notifies the Listener that the font selection was aborted (via the user
+    // canceling or closing the selection dialog box, for example). |params| is
+    // contextual passed to SelectFile.
+    virtual void FontSelectionCanceled(void* params) {};
+  };
+
+  // Creates a dialog box helper. This object is ref-counted, but the returned
+  // object will have no reference (refcount is 0).
+  static SelectFontDialog* Create(Listener* listener);
+
+  // Selects a font. This will start displaying the dialog box. This will also
+  // block the calling HWND until the dialog box is complete. The listener
+  // associated with this object will be notified when the selection is
+  // complete.
+  // |owning_hwnd| is the window the dialog is modal to, or NULL for a modeless
+  // dialog.
+  // |params| is data from the calling context which will be passed through to
+  // the listener. Can be NULL.
+  // NOTE: only one instance of any shell dialog can be shown per owning_hwnd
+  //       at a time (for obvious reasons).
+  // TODO(beng): support specifying the default font selected in the list when
+  //             the dialog appears.
+  virtual void SelectFont(HWND owning_hwnd,
+                          void* params) = 0;
+
+  // Same as above - also support specifying the default font selected in the
+  // list when the dialog appears.
+  virtual void SelectFont(HWND owning_hwnd,
+                          void* params,
+                          const std::wstring& font_name,
+                          int font_size) = 0;
+};
+
+#endif  // #ifndef CHROME_BROWSER_SHELL_DIALOGS_H__