Compact Navigation prototype

chrome/browser/ui/views/dropdown_bar_view.h

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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_UI_VIEWS_DROPDOWN_BAR_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_DROPDOWN_BAR_VIEW_H_
 #pragma once
 
-#include "views/view.h"
+#include "chrome/browser/ui/views/dropdown_bar_host.h"
+#include "chrome/browser/ui/views/dropdown_bar_host_delegate.h"
+#include "chrome/browser/ui/views/accessible_pane_view.h"
 
-class DropdownBarHost;
+namespace gfx {
+class Canvas;
+}  // namespace gfx
 
 ////////////////////////////////////////////////////////////////////////////////
 //
 // The DropdownBarView is an abstract view to draw the UI controls of the
 // DropdownBarHost.
 //
 ////////////////////////////////////////////////////////////////////////////////
-class DropdownBarView : public views::View {
+class DropdownBarView : public AccessiblePaneView,
+                        public DropdownBarHostDelegate {
  public:
-  explicit DropdownBarView(DropdownBarHost* host)
-      : host_(host),
-        animation_offset_(0) {
-  }
-  virtual ~DropdownBarView() {}
-
-  // Claims focus for the text field and selects its contents.
-  virtual void SetFocusAndSelection(bool select_all) = 0;
+  explicit DropdownBarView(DropdownBarHost* host);
+  virtual ~DropdownBarView();
 
   // Updates the view to let it know where the host is clipping the
   // dropdown widget (while animating the opening or closing of the widget).
-  void set_animation_offset(int offset) { animation_offset_ = offset; }
+  virtual void SetAnimationOffset(int offset) OVERRIDE;
 
   // Returns the offset used while animating.
   int animation_offset() const { return animation_offset_; }
 
  protected:
   // Returns the DropdownBarHost that manages this view.
   DropdownBarHost* host() const { return host_; }
 
+  // Assign border bitmaps for this drop down instance.
+  void SetDialogBorderBitmaps(const SkBitmap* dialog_left,
+                              const SkBitmap* dialog_middle,
+                              const SkBitmap* dialog_right);
+
+  // Paints the offset toolbar background over the widget area and returns the
+  // bounds of the widget.
+  gfx::Rect PaintOffsetToolbarBackground(gfx::Canvas* canvas);
+
+  // Paint the border for the drop down dialog given the ends and middle
+  // bitmaps.
+  void PaintDialogBorder(gfx::Canvas* canvas, const gfx::Rect& bounds) const;
+
+  // Special paint code for the edges when the drop down bar is animating.
+  void PaintAnimatingEdges(gfx::Canvas* canvas, const gfx::Rect& bounds) const;
+
  private:
   // The dropdown bar host that controls this view.
   DropdownBarHost* host_;
 
   // While animating, the host clips the widget and draws only the bottom
   // part of it. The view needs to know the pixel offset at which we are drawing
   // the widget so that we can draw the curved edges that attach to the toolbar
   // in the right location.
   int animation_offset_;
 
+  // The dialog border bitmaps.
+  const SkBitmap* dialog_left_;
+  const SkBitmap* dialog_middle_;
+  const SkBitmap* dialog_right_;
+
   DISALLOW_COPY_AND_ASSIGN(DropdownBarView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_DROPDOWN_BAR_VIEW_H_