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// Copyright (c) 2009 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_FRAME_BROWSER_ROOT_VIEW_H_
#define CHROME_BROWSER_VIEWS_FRAME_BROWSER_ROOT_VIEW_H_
#pragma once
#include "views/widget/root_view.h"
class BrowserView;
class OSExchangeData;
class BaseTabStrip;
// RootView implementation used by BrowserFrame. This forwards drop events to
// the TabStrip. Visually the tabstrip extends to the top of the frame, but in
// actually it doesn't. The tabstrip is only as high as a tab. To enable
// dropping above the tabstrip BrowserRootView forwards drop events to the
// TabStrip.
class BrowserRootView : public views::RootView {
public:
// You must call set_tabstrip before this class will accept drops.
BrowserRootView(BrowserView* browser_view, views::Widget* widget);
virtual bool GetDropFormats(
int* formats,
std::set<OSExchangeData::CustomFormat>* custom_formats);
virtual bool AreDropTypesRequired();
virtual bool CanDrop(const OSExchangeData& data);
virtual void OnDragEntered(const views::DropTargetEvent& event);
virtual int OnDragUpdated(const views::DropTargetEvent& event);
virtual void OnDragExited();
virtual int OnPerformDrop(const views::DropTargetEvent& event);
private:
// Returns true if the event should be forwarded to the tabstrip.
bool ShouldForwardToTabStrip(const views::DropTargetEvent& event);
// Converts the event from the hosts coordinate system to the tabstrips
// coordinate system.
views::DropTargetEvent* MapEventToTabStrip(
const views::DropTargetEvent& event,
const OSExchangeData& data);
inline BaseTabStrip* tabstrip() const;
// Returns true if |data| has string contents and the user can "paste and go".
// If |url| is non-NULL and the user can "paste and go", |url| is set to the
// desired destination.
bool GetPasteAndGoURL(const OSExchangeData& data, GURL* url);
// The BrowserView.
BrowserView* browser_view_;
// If true, drag and drop events are being forwarded to the tab strip.
// This is used to determine when to send OnDragEntered and OnDragExited
// to the tab strip.
bool forwarding_to_tab_strip_;
DISALLOW_COPY_AND_ASSIGN(BrowserRootView);
};
#endif // CHROME_BROWSER_VIEWS_FRAME_BROWSER_ROOT_VIEW_H_
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