browser_root_view.h revision b2df76ea8fec9e32f6f3718986dba0d95315b29c
1// Copyright (c) 2012 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_FRAME_BROWSER_ROOT_VIEW_H_ 6#define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_ROOT_VIEW_H_ 7 8#include "ui/views/widget/root_view.h" 9 10class BrowserView; 11class TabStrip; 12 13namespace ui { 14class OSExchangeData; 15} 16 17// RootView implementation used by BrowserFrame. This forwards drop events to 18// the TabStrip. Visually the tabstrip extends to the top of the frame, but in 19// actually it doesn't. The tabstrip is only as high as a tab. To enable 20// dropping above the tabstrip BrowserRootView forwards drop events to the 21// TabStrip. 22class BrowserRootView : public views::internal::RootView { 23 public: 24 // Internal class name. 25 static const char kViewClassName[]; 26 27 // You must call set_tabstrip before this class will accept drops. 28 BrowserRootView(BrowserView* browser_view, views::Widget* widget); 29 30 // Overridden from views::View: 31 virtual bool GetDropFormats( 32 int* formats, 33 std::set<ui::OSExchangeData::CustomFormat>* custom_formats) OVERRIDE; 34 virtual bool AreDropTypesRequired() OVERRIDE; 35 virtual bool CanDrop(const ui::OSExchangeData& data) OVERRIDE; 36 virtual void OnDragEntered(const ui::DropTargetEvent& event) OVERRIDE; 37 virtual int OnDragUpdated(const ui::DropTargetEvent& event) OVERRIDE; 38 virtual void OnDragExited() OVERRIDE; 39 virtual int OnPerformDrop(const ui::DropTargetEvent& event) OVERRIDE; 40 virtual const char* GetClassName() const OVERRIDE; 41 virtual void SchedulePaintInRect(const gfx::Rect& rect) OVERRIDE; 42 43 private: 44 // Returns true if the event should be forwarded to the tabstrip. 45 bool ShouldForwardToTabStrip(const ui::DropTargetEvent& event); 46 47 // Converts the event from the hosts coordinate system to the tabstrips 48 // coordinate system. 49 ui::DropTargetEvent* MapEventToTabStrip( 50 const ui::DropTargetEvent& event, 51 const ui::OSExchangeData& data); 52 53 inline TabStrip* tabstrip() const; 54 55 // Returns true if |data| has string contents and the user can "paste and go". 56 // If |url| is non-NULL and the user can "paste and go", |url| is set to the 57 // desired destination. 58 bool GetPasteAndGoURL(const ui::OSExchangeData& data, GURL* url); 59 60 // The BrowserView. 61 BrowserView* browser_view_; 62 63 // In immersive mode, when the immersive-controller temporarily reveals the 64 // top views, it is necessary to redirect some of the SchedulePaint() calls 65 // from views in the non-client view (e.g. maximize/close button etc.) to the 66 // reveal-view so that they are painted correctly. This keeps track of when 67 // such redirection is done. 68 bool scheduling_immersive_reveal_painting_; 69 70 // If true, drag and drop events are being forwarded to the tab strip. 71 // This is used to determine when to send OnDragEntered and OnDragExited 72 // to the tab strip. 73 bool forwarding_to_tab_strip_; 74 75 DISALLOW_COPY_AND_ASSIGN(BrowserRootView); 76}; 77 78#endif // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_ROOT_VIEW_H_ 79