1 files changed, 57 insertions, 0 deletions
diff --git a/chrome/views/controls/single_split_view.h b/chrome/views/controls/single_split_view.h
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+++ b/chrome/views/controls/single_split_view.h
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+// 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 CHROME_VIEWS_CONTROLS_SINGLE_SPLIT_VIEW_H_
+#define CHROME_VIEWS_CONTROLS_SINGLE_SPLIT_VIEW_H_
+
+#include "chrome/views/view.h"
+
+namespace views {
+
+// SingleSplitView lays out two views horizontally. A splitter exists between
+// the two views that the user can drag around to resize the views.
+class SingleSplitView : public views::View {
+ public:
+  SingleSplitView(View* leading, View* trailing);
+
+  virtual void Layout();
+
+  // SingleSplitView's preferred size is the sum of the preferred widths
+  // and the max of the heights.
+  virtual gfx::Size GetPreferredSize();
+
+  // Overriden to return a resize cursor when over the divider.
+  virtual HCURSOR GetCursorForPoint(Event::EventType event_type, int x, int y);
+
+  void set_divider_x(int divider_x) { divider_x_ = divider_x; }
+  int divider_x() { return divider_x_; }
+
+ protected:
+  virtual bool OnMousePressed(const MouseEvent& event);
+  virtual bool OnMouseDragged(const MouseEvent& event);
+  virtual void OnMouseReleased(const MouseEvent& event, bool canceled);
+
+ private:
+  // Returns true if |x| is over the divider.
+  bool IsPointInDivider(int x);
+
+  // Used to track drag info.
+  struct DragInfo {
+    // The initial coordinate of the mouse when the user started the drag.
+    int initial_mouse_x;
+    // The initial position of the divider when the user started the drag.
+    int initial_divider_x;
+  };
+
+  DragInfo drag_info_;
+
+  // Position of the divider.
+  int divider_x_;
+
+  DISALLOW_COPY_AND_ASSIGN(SingleSplitView);
+};
+
+}  // namespace views
+
+#endif  // CHROME_VIEWS_CONTROLS_SINGLE_SPLIT_VIEW_H_