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_DOWNLOAD_DOWNLOAD_SHELF_H_
6#define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_SHELF_H_
7#pragma once
8
9#include "base/basictypes.h"
10#include "base/memory/scoped_ptr.h"
11#include "base/string16.h"
12#include "ui/base/models/simple_menu_model.h"
13
14class BaseDownloadItemModel;
15class Browser;
16class DownloadItem;
17
18// DownloadShelf is an interface for platform-specific download shelf views.
19class DownloadShelf {
20 public:
21  virtual ~DownloadShelf() {}
22
23  // A new download has started, so add it to our shelf. This object will
24  // take ownership of |download_model|. Also make the shelf visible.
25  virtual void AddDownload(BaseDownloadItemModel* download_model) = 0;
26
27  // The browser view needs to know when we are going away to properly return
28  // the resize corner size to WebKit so that we don't draw on top of it.
29  // This returns the showing state of our animation which is set to true at
30  // the beginning Show and false at the beginning of a Hide.
31  virtual bool IsShowing() const = 0;
32
33  // Returns whether the download shelf is showing the close animation.
34  virtual bool IsClosing() const = 0;
35
36  // Opens the shelf.
37  virtual void Show() = 0;
38
39  // Closes the shelf.
40  virtual void Close() = 0;
41
42  virtual Browser* browser() const = 0;
43};
44
45// Logic for the download shelf context menu. Platform specific subclasses are
46// responsible for creating and running the menu.
47class DownloadShelfContextMenu : public ui::SimpleMenuModel::Delegate {
48 public:
49  virtual ~DownloadShelfContextMenu();
50
51  virtual DownloadItem* download() const;
52
53  enum ContextMenuCommands {
54    SHOW_IN_FOLDER = 1,  // Open a file explorer window with the item selected.
55    OPEN_WHEN_COMPLETE,  // Open the download when it's finished.
56    ALWAYS_OPEN_TYPE,    // Default this file extension to always open.
57    CANCEL,              // Cancel the download.
58    TOGGLE_PAUSE,        // Temporarily pause a download.
59    MENU_LAST
60  };
61
62 protected:
63  explicit DownloadShelfContextMenu(BaseDownloadItemModel* download_model);
64
65  ui::SimpleMenuModel* GetInProgressMenuModel();
66  ui::SimpleMenuModel* GetFinishedMenuModel();
67  // Information source.
68  DownloadItem* download_;
69
70  // ui::SimpleMenuModel::Delegate implementation:
71  virtual bool IsCommandIdEnabled(int command_id) const;
72  virtual bool IsCommandIdChecked(int command_id) const;
73  virtual void ExecuteCommand(int command_id);
74  virtual bool GetAcceleratorForCommandId(int command_id,
75                                          ui::Accelerator* accelerator);
76  virtual bool IsItemForCommandIdDynamic(int command_id) const;
77  virtual string16 GetLabelForCommandId(int command_id) const;
78
79  // A model to control the cancel behavior.
80  BaseDownloadItemModel* model_;
81
82 private:
83  // We show slightly different menus if the download is in progress vs. if the
84  // download has finished.
85  scoped_ptr<ui::SimpleMenuModel> in_progress_download_menu_model_;
86  scoped_ptr<ui::SimpleMenuModel> finished_download_menu_model_;
87
88  DISALLOW_COPY_AND_ASSIGN(DownloadShelfContextMenu);
89};
90
91#endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_SHELF_H_
92