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Side by Side Diff: chrome/browser/tab_contents/web_drag_dest_gtk.h

Issue 8196001: content: Split web_drag_dest_gtk.cc into chrome/ and content/ parts. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Fix viewgtk compile Created 9 years, 2 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_DEST_GTK_H_ 5 #ifndef CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_DEST_GTK_H_
6 #define CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_DEST_GTK_H_ 6 #define CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_DEST_GTK_H_
7 #pragma once 7 #pragma once
8 8
9 #include <gtk/gtk.h> 9 #include <gtk/gtk.h>
10 10
11 #include "base/gtest_prod_util.h" 11 #include "base/gtest_prod_util.h"
12 #include "base/memory/scoped_ptr.h" 12 #include "base/memory/scoped_ptr.h"
13 #include "base/task.h" 13 #include "base/task.h"
14 #include "chrome/browser/bookmarks/bookmark_node_data.h"
15 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDragOperation.h" 14 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDragOperation.h"
16 #include "ui/base/gtk/gtk_signal.h" 15 #include "ui/base/gtk/gtk_signal.h"
17 #include "webkit/glue/webdropdata.h" 16 #include "webkit/glue/webdropdata.h"
18 17
19 class TabContents; 18 class TabContents;
20 class TabContentsWrapper; 19 class WebDragDestDelegateGtk;
21 20
22 // A helper class that handles DnD for drops in the renderer. In GTK parlance, 21 // A helper class that handles DnD for drops in the renderer. In GTK parlance,
23 // this handles destination-side DnD, but not source-side DnD. 22 // this handles destination-side DnD, but not source-side DnD.
24 class WebDragDestGtk { 23 class WebDragDestGtk {
25 public: 24 public:
26 WebDragDestGtk(TabContents* tab_contents, GtkWidget* widget); 25 WebDragDestGtk(TabContents* tab_contents, GtkWidget* widget);
27 virtual ~WebDragDestGtk(); 26 virtual ~WebDragDestGtk();
28 27
29 // This is called when the renderer responds to a drag motion event. We must 28 // This is called when the renderer responds to a drag motion event. We must
30 // update the system drag cursor. 29 // update the system drag cursor.
31 void UpdateDragStatus(WebKit::WebDragOperation operation); 30 void UpdateDragStatus(WebKit::WebDragOperation operation);
32 31
33 // Informs the renderer when a system drag has left the render view. 32 // Informs the renderer when a system drag has left the render view.
34 // See OnDragLeave(). 33 // See OnDragLeave().
35 void DragLeave(); 34 void DragLeave();
36 35
36 WebDragDestDelegateGtk* delegate() const { return delegate_; }
37 void set_delegate(WebDragDestDelegateGtk* delegate) { delegate_ = delegate; }
38
37 private: 39 private:
38 FRIEND_TEST_ALL_PREFIXES(WebDragDestGtkTest, NoTabContentsWrapper);
39
40 // Called when a system drag crosses over the render view. As there is no drag 40 // Called when a system drag crosses over the render view. As there is no drag
41 // enter event, we treat it as an enter event (and not a regular motion event) 41 // enter event, we treat it as an enter event (and not a regular motion event)
42 // when |context_| is NULL. 42 // when |context_| is NULL.
43 CHROMEGTK_CALLBACK_4(WebDragDestGtk, gboolean, OnDragMotion, GdkDragContext*, 43 CHROMEGTK_CALLBACK_4(WebDragDestGtk, gboolean, OnDragMotion, GdkDragContext*,
44 gint, gint, guint); 44 gint, gint, guint);
45 45
46 // We make a series of requests for the drag data when the drag first enters 46 // We make a series of requests for the drag data when the drag first enters
47 // the render view. This is the callback that is used to give us the data 47 // the render view. This is the callback that is used to give us the data
48 // for each individual target. When |data_requests_| reaches 0, we know we 48 // for each individual target. When |data_requests_| reaches 0, we know we
49 // have attained all the data, and we can finally tell the renderer about the 49 // have attained all the data, and we can finally tell the renderer about the
50 // drag. 50 // drag.
51 CHROMEGTK_CALLBACK_6(WebDragDestGtk, void, OnDragDataReceived, 51 CHROMEGTK_CALLBACK_6(WebDragDestGtk, void, OnDragDataReceived,
52 GdkDragContext*, gint, gint, GtkSelectionData*, 52 GdkDragContext*, gint, gint, GtkSelectionData*,
53 guint, guint); 53 guint, guint);
54 54
55 // The drag has left our widget; forward this information to the renderer. 55 // The drag has left our widget; forward this information to the renderer.
56 CHROMEGTK_CALLBACK_2(WebDragDestGtk, void, OnDragLeave, GdkDragContext*, 56 CHROMEGTK_CALLBACK_2(WebDragDestGtk, void, OnDragLeave, GdkDragContext*,
57 guint); 57 guint);
58 58
59 // Called by GTK when the user releases the mouse, executing a drop. 59 // Called by GTK when the user releases the mouse, executing a drop.
60 CHROMEGTK_CALLBACK_4(WebDragDestGtk, gboolean, OnDragDrop, GdkDragContext*, 60 CHROMEGTK_CALLBACK_4(WebDragDestGtk, gboolean, OnDragDrop, GdkDragContext*,
61 gint, gint, guint); 61 gint, gint, guint);
62 62
63 TabContents* tab_contents_; 63 TabContents* tab_contents_;
64 64
65 // The TabContentsWrapper for |tab_contents_|.
66 // Weak reference; may be NULL if the contents aren't contained in a wrapper
67 // (e.g. WebUI dialogs).
68 TabContentsWrapper* tab_;
69
70 // The render view. 65 // The render view.
71 GtkWidget* widget_; 66 GtkWidget* widget_;
72 67
73 // The current drag context for system drags over our render view, or NULL if 68 // The current drag context for system drags over our render view, or NULL if
74 // there is no system drag or the system drag is not over our render view. 69 // there is no system drag or the system drag is not over our render view.
75 GdkDragContext* context_; 70 GdkDragContext* context_;
76 71
77 // The data for the current drag, or NULL if |context_| is NULL. 72 // The data for the current drag, or NULL if |context_| is NULL.
78 scoped_ptr<WebDropData> drop_data_; 73 scoped_ptr<WebDropData> drop_data_;
79 74
80 // The number of outstanding drag data requests we have sent to the drag 75 // The number of outstanding drag data requests we have sent to the drag
81 // source. 76 // source.
82 int data_requests_; 77 int data_requests_;
83 78
84 // The last time we sent a message to the renderer related to a drag motion. 79 // The last time we sent a message to the renderer related to a drag motion.
85 gint drag_over_time_; 80 gint drag_over_time_;
86 81
87 // Whether the cursor is over a drop target, according to the last message we 82 // Whether the cursor is over a drop target, according to the last message we
88 // got from the renderer. 83 // got from the renderer.
89 bool is_drop_target_; 84 bool is_drop_target_;
90 85
91 // Handler ID for the destroy signal handler. We connect to the destroy 86 // Handler ID for the destroy signal handler. We connect to the destroy
92 // signal handler so that we won't call dest_unset on it after it is 87 // signal handler so that we won't call dest_unset on it after it is
93 // destroyed, but we have to cancel the handler if we are destroyed before 88 // destroyed, but we have to cancel the handler if we are destroyed before
94 // |widget_| is. 89 // |widget_| is.
95 int destroy_handler_; 90 int destroy_handler_;
96 91
97 // The bookmark data for the current tab. This will be empty if there is not 92 // A delegate that can receive drag information about drag events.
98 // a native bookmark drag (or we haven't gotten the data from the source yet). 93 WebDragDestDelegateGtk* delegate_;
99 BookmarkNodeData bookmark_drag_data_;
100 94
101 ScopedRunnableMethodFactory<WebDragDestGtk> method_factory_; 95 ScopedRunnableMethodFactory<WebDragDestGtk> method_factory_;
102 96
103 DISALLOW_COPY_AND_ASSIGN(WebDragDestGtk); 97 DISALLOW_COPY_AND_ASSIGN(WebDragDestGtk);
104 }; 98 };
105 99
106 #endif // CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_DEST_GTK_H_ 100 #endif // CHROME_BROWSER_TAB_CONTENTS_WEB_DRAG_DEST_GTK_H_
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