Reverting 20854.

Review URL: http://codereview.chromium.org/155621

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@20855 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 80 insertions, 0 deletions

diff --git a/webkit/glue/webwidget.h b/webkit/glue/webwidget.h
new file mode 100644
index 0000000..6653e28
--- /dev/null
+++ b/webkit/glue/webwidget.h
@@ -0,0 +1,80 @@
+// Copyright (c) 2006-2008 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 WEBKIT_GLUE_WEBWIDGET_H__
+#define WEBKIT_GLUE_WEBWIDGET_H__
+
+#include "skia/ext/platform_canvas.h"
+#include "webkit/glue/webtextdirection.h"
+
+namespace WebKit {
+class WebInputEvent;
+struct WebRect;
+struct WebSize;
+}
+
+class WebWidgetDelegate;
+
+class WebWidget {
+ public:
+  WebWidget() {}
+
+  // This method creates a WebWidget that is initially invisible and positioned
+  // according to the given bounds relative to the specified parent window.
+  // The caller is responsible for showing the WebWidget's view window (see
+  // GetViewWindow) once it is ready to have the WebWidget appear on the screen.
+  static WebWidget* Create(WebWidgetDelegate* delegate);
+
+  // This method closes and deletes the WebWidget.
+  virtual void Close() = 0;
+
+  // Called to resize the WebWidget.
+  virtual void Resize(const WebKit::WebSize& new_size) = 0;
+
+  // Returns the current size of the WebWidget.
+  virtual WebKit::WebSize GetSize() = 0;
+
+  // Called to layout the WebWidget.  This MUST be called before Paint, and it
+  // may result in calls to WebWidgetDelegate::DidInvalidateRect.
+  virtual void Layout() = 0;
+
+  // Called to paint the specified region of the WebWidget onto the given canvas.
+  // You MUST call Layout before calling this method.  It is okay to call Paint
+  // multiple times once Layout has been called, assuming no other changes are
+  // made to the WebWidget (e.g., once events are processed, it should be assumed
+  // that another call to Layout is warranted before painting again).
+  virtual void Paint(skia::PlatformCanvas* canvas,
+                     const WebKit::WebRect& rect) = 0;
+
+  // Called to inform the WebWidget of an input event.
+  // Returns true if the event has been processed, false otherwise.
+  virtual bool HandleInputEvent(const WebKit::WebInputEvent* input_event) = 0;
+
+  // Called to inform the WebWidget that mouse capture was lost.
+  virtual void MouseCaptureLost() = 0;
+
+  // Called to inform the WebWidget that it has gained or lost keyboard focus.
+  virtual void SetFocus(bool enable) = 0;
+
+  // Called to inform the webwidget of a composition event from IMM
+  // (Input Method Manager).
+  virtual bool ImeSetComposition(int string_type, int cursor_position,
+                                 int target_start, int target_end,
+                                 const std::wstring& ime_string) = 0;
+
+  // Retrieve the status of this widget required by IME APIs.
+  virtual bool ImeUpdateStatus(bool* enable_ime,
+                               WebKit::WebRect* caret_rect) = 0;
+
+  // Changes the text direction of the selected input node.
+  virtual void SetTextDirection(WebTextDirection direction) = 0;
+
+ protected:
+  virtual ~WebWidget() {}
+
+ private:
+  DISALLOW_EVIL_CONSTRUCTORS(WebWidget);
+};
+
+#endif  // #ifndef WEBKIT_GLUE_WEBWIDGET_H__