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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_GTK_DOWNLOAD_DOWNLOAD_SHELF_GTK_H_ | |
6 #define CHROME_BROWSER_UI_GTK_DOWNLOAD_DOWNLOAD_SHELF_GTK_H_ | |
7 | |
8 #include <gtk/gtk.h> | |
9 | |
10 #include <vector> | |
11 | |
12 #include "base/compiler_specific.h" | |
13 #include "base/memory/scoped_ptr.h" | |
14 #include "base/memory/weak_ptr.h" | |
15 #include "base/message_loop/message_loop.h" | |
16 #include "chrome/browser/download/download_shelf.h" | |
17 #include "chrome/browser/ui/gtk/slide_animator_gtk.h" | |
18 #include "content/public/browser/notification_observer.h" | |
19 #include "content/public/browser/notification_registrar.h" | |
20 #include "ui/base/gtk/gtk_signal.h" | |
21 #include "ui/base/gtk/owned_widget_gtk.h" | |
22 #include "ui/gfx/native_widget_types.h" | |
23 | |
24 class Browser; | |
25 class CustomDrawButton; | |
26 class DownloadItemGtk; | |
27 class GtkThemeService; | |
28 | |
29 namespace content { | |
30 class PageNavigator; | |
31 } | |
32 | |
33 namespace gfx { | |
34 class Point; | |
35 } | |
36 | |
37 class DownloadShelfGtk : public DownloadShelf, | |
38 public content::NotificationObserver, | |
39 public SlideAnimatorGtk::Delegate, | |
40 public base::MessageLoopForUI::Observer { | |
41 public: | |
42 DownloadShelfGtk(Browser* browser, gfx::NativeView view); | |
43 | |
44 virtual ~DownloadShelfGtk(); | |
45 | |
46 // Retrieves the navigator for loading pages. | |
47 content::PageNavigator* GetNavigator(); | |
48 | |
49 // DownloadShelf implementation. | |
50 virtual bool IsShowing() const OVERRIDE; | |
51 virtual bool IsClosing() const OVERRIDE; | |
52 virtual Browser* browser() const OVERRIDE; | |
53 | |
54 // SlideAnimatorGtk::Delegate implementation. | |
55 virtual void Closed() OVERRIDE; | |
56 | |
57 // Overridden from content::NotificationObserver: | |
58 virtual void Observe(int type, | |
59 const content::NotificationSource& source, | |
60 const content::NotificationDetails& details) OVERRIDE; | |
61 | |
62 // Returns the current height of the shelf. | |
63 int GetHeight() const; | |
64 | |
65 // MessageLoop::Observer implementation: | |
66 virtual void WillProcessEvent(GdkEvent* event) OVERRIDE; | |
67 virtual void DidProcessEvent(GdkEvent* event) OVERRIDE; | |
68 | |
69 protected: | |
70 // DownloadShelf implementation. | |
71 virtual void DoAddDownload(content::DownloadItem* download) OVERRIDE; | |
72 virtual void DoShow() OVERRIDE; | |
73 virtual void DoClose(CloseReason reason) OVERRIDE; | |
74 | |
75 private: | |
76 // Remove |download_item| from the download shelf and delete it. | |
77 void RemoveDownloadItem(DownloadItemGtk* download_item); | |
78 | |
79 // Get the hbox download items ought to pack themselves into. | |
80 GtkWidget* GetHBox() const; | |
81 | |
82 // Show more hidden download items if there is enough space in the shelf. | |
83 // It's called when a download item is removed from the shelf or an item's | |
84 // size is changed. | |
85 void MaybeShowMoreDownloadItems(); | |
86 | |
87 // Checks that all download items have been opened, and sets the auto-close | |
88 // state of the shelf if so. | |
89 void AutoCloseIfPossible(); | |
90 | |
91 // Cancels the auto-close state set by AutoCloseIfPossible, including any | |
92 // pending close tasks that have already been posted. | |
93 void CancelAutoClose(); | |
94 | |
95 // A download item has been opened. It might be possible to automatically | |
96 // close now. | |
97 void ItemOpened(); | |
98 | |
99 // Sets whether the shelf should automatically close. | |
100 void SetCloseOnMouseOut(bool close); | |
101 | |
102 // Returns whether the given point is within the "zone" of the shelf, which is | |
103 // the shelf and a band of 40 pixels on the top of it. | |
104 bool IsCursorInShelfZone(const gfx::Point& cursor_screen_coords); | |
105 | |
106 // Synthesized enter-notify and leave-notify events for the shelf's "zone". | |
107 void MouseLeftShelf(); | |
108 void MouseEnteredShelf(); | |
109 | |
110 CHROMEGTK_CALLBACK_0(DownloadShelfGtk, void, OnButtonClick); | |
111 | |
112 // The browser that owns this download shelf. | |
113 Browser* browser_; | |
114 | |
115 // The top level widget of the shelf. | |
116 scoped_ptr<SlideAnimatorGtk> slide_widget_; | |
117 | |
118 // |items_hbox_| holds the download items. | |
119 ui::OwnedWidgetGtk items_hbox_; | |
120 | |
121 // |shelf_| is the second highest level widget. See the constructor | |
122 // for an explanation of the widget layout. | |
123 ui::OwnedWidgetGtk shelf_; | |
124 | |
125 // Top level event box which draws the one pixel border. | |
126 GtkWidget* top_border_; | |
127 | |
128 // A GtkEventBox which we color. | |
129 GtkWidget* padding_bg_; | |
130 | |
131 // The "Show all downloads..." link. | |
132 GtkWidget* link_button_; | |
133 | |
134 // The 'x' that the user can press to hide the download shelf. | |
135 scoped_ptr<CustomDrawButton> close_button_; | |
136 | |
137 // Keeps track of our current hide/show state. | |
138 bool is_showing_; | |
139 | |
140 // The download items we have added to our shelf. | |
141 std::vector<DownloadItemGtk*> download_items_; | |
142 | |
143 // Gives us our colors and theme information. | |
144 GtkThemeService* theme_service_; | |
145 | |
146 content::NotificationRegistrar registrar_; | |
147 | |
148 // True if the shelf will automatically close when the user mouses out. | |
149 bool close_on_mouse_out_; | |
150 | |
151 // True if the mouse is within the shelf's bounds, as of the last mouse event | |
152 // we received. | |
153 bool mouse_in_shelf_; | |
154 | |
155 base::WeakPtrFactory<DownloadShelfGtk> weak_factory_; | |
156 | |
157 friend class DownloadItemGtk; | |
158 }; | |
159 | |
160 #endif // CHROME_BROWSER_UI_GTK_DOWNLOAD_DOWNLOAD_SHELF_GTK_H_ | |
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