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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_UI_VIEWS_TAB_CONTENTS_NATIVE_TAB_CONTENTS_VIEW_DELEGATE_H_
      6 #define CHROME_BROWSER_UI_VIEWS_TAB_CONTENTS_NATIVE_TAB_CONTENTS_VIEW_DELEGATE_H_
      7 #pragma once
      8 
      9 class TabContents;
     10 namespace gfx{
     11 class Size;
     12 }
     13 
     14 namespace internal {
     15 
     16 class NativeTabContentsViewDelegate {
     17  public:
     18   virtual ~NativeTabContentsViewDelegate() {}
     19 
     20   virtual TabContents* GetTabContents() = 0;
     21 
     22   // TODO(beng):
     23   // This can die with OnNativeTabContentsViewMouseDown/Move().
     24   virtual bool IsShowingSadTab() const = 0;
     25 
     26   // TODO(beng):
     27   // These three can be replaced by Widget::OnSizeChanged and some new
     28   // notifications for show/hide.
     29   virtual void OnNativeTabContentsViewShown() = 0;
     30   virtual void OnNativeTabContentsViewHidden() = 0;
     31   virtual void OnNativeTabContentsViewSized(const gfx::Size& size) = 0;
     32 
     33   virtual void OnNativeTabContentsViewWheelZoom(int distance) = 0;
     34 
     35   // TODO(beng):
     36   // These two can be replaced by an override of Widget::OnMouseEvent.
     37   virtual void OnNativeTabContentsViewMouseDown() = 0;
     38   virtual void OnNativeTabContentsViewMouseMove() = 0;
     39 
     40   virtual void OnNativeTabContentsViewDraggingEnded() = 0;
     41 };
     42 
     43 }  // namespace internal
     44 
     45 #endif  // CHROME_BROWSER_UI_VIEWS_TAB_CONTENTS_NATIVE_TAB_CONTENTS_VIEW_DELEGATE_H_
     46