1 files changed, 119 insertions, 0 deletions
diff --git a/chrome/browser/views/tabs/dragged_tab_view.h b/chrome/browser/views/tabs/dragged_tab_view.h
new file mode 100644
index 0000000..e59582c
--- /dev/null
+++ b/chrome/browser/views/tabs/dragged_tab_view.h
@@ -0,0 +1,119 @@
+// 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_BROWSER_VIEWS_TABS_DRAGGED_TAB_VIEW_H_
+#define CHROME_BROWSER_VIEWS_TABS_DRAGGED_TAB_VIEW_H_
+
+#include "base/gfx/point.h"
+#include "base/gfx/size.h"
+#include "base/task.h"
+#include "chrome/common/slide_animation.h"
+#include "chrome/views/view.h"
+#include "skia/include/SkBitmap.h"
+
+namespace ChromeViews {
+class HWNDViewContainer;
+}
+namespace gfx {
+class Point;
+}
+class HWNDPhotobooth;
+class Tab;
+class TabContents;
+class TabRenderer;
+
+class DraggedTabView : public ChromeViews::View,
+                       public AnimationDelegate {
+ public:
+  DraggedTabView(TabContents* datasource,
+                 const gfx::Point& mouse_tab_offset,
+                 const gfx::Size& contents_size);
+  virtual ~DraggedTabView();
+
+  // Moves the DraggedTabView to the appropriate location given the mouse
+  // pointer at |screen_point|.
+  void MoveTo(const gfx::Point& screen_point);
+
+  // Notifies the DraggedTabView that it has become attached to a TabStrip.
+  void Attach(int selected_width);
+
+  // Notifies the DraggedTabView that it has been detached from a TabStrip.
+  void Detach(HWNDPhotobooth* photobooth);
+
+  // Notifies the DraggedTabView that it should update itself.
+  void Update();
+
+  // Animates the DraggedTabView to the specified bounds, then calls back to
+  // |callback|.
+  void AnimateToBounds(const gfx::Rect& bounds, Callback0::Type* callback);
+
+  // Returns the size of the DraggedTabView. Used when attaching to a TabStrip
+  // to determine where to place the Tab in the attached TabStrip.
+  gfx::Size attached_tab_size() const { return attached_tab_size_; }
+
+ private:
+  // Overridden from AnimationDelegate:
+  virtual void AnimationProgressed(const Animation* animation);
+  virtual void AnimationEnded(const Animation* animation);
+  virtual void AnimationCanceled(const Animation* animation);
+
+  // Overridden from ChromeViews::View:
+  virtual void Paint(ChromeCanvas* canvas);
+  virtual void Layout();
+  virtual void GetPreferredSize(CSize* out);
+
+  // Paint the view, when it's attached to a TabStrip.
+  void PaintAttachedTab(ChromeCanvas* canvas);
+
+  // Paint the view, when it's not attached to any TabStrip.
+  void PaintDetachedView(ChromeCanvas* canvas);
+
+  // Resizes the container to fit the content for the current attachment mode.
+  void ResizeContainer();
+
+  // Utility for scaling a size by the current scaling factor.
+  int ScaleValue(int value);
+
+  // The window that contains the DraggedTabView.
+  ChromeViews::HWNDViewContainer* container_;
+
+  // The renderer that paints the Tab shape.
+  scoped_ptr<TabRenderer> renderer_;
+
+  // True if the view is currently attached to a TabStrip. Controls rendering
+  // and sizing modes.
+  bool attached_;
+
+  // The unscaled offset of the mouse from the top left of the dragged Tab.
+  // This is used to maintain an appropriate offset for the mouse pointer when
+  // dragging scaled and unscaled representations, and also to calculate the
+  // position of detached windows.
+  gfx::Point mouse_tab_offset_;
+
+  // The desired width of the TabRenderer when the DraggedTabView is attached
+  // to a TabStrip.
+  gfx::Size attached_tab_size_;
+
+  // A handle to the DIB containing the current screenshot of the TabContents
+  // we are dragging.
+  HWNDPhotobooth* photobooth_;
+
+  // The dimensions of the TabContents being dragged.
+  gfx::Size contents_size_;
+
+  // The animation used to slide the attached view to its final location.
+  SlideAnimation close_animation_;
+
+  // A callback notified when the animation is complete.
+  scoped_ptr<Callback0::Type> animation_callback_;
+
+  // The start and end bounds of the animation sequence.
+  gfx::Rect animation_start_bounds_;
+  gfx::Rect animation_end_bounds_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(DraggedTabView);
+};
+
+#endif  // CHROME_BROWSER_VIEWS_TABS_DRAGGED_TAB_VIEW_H_
+