blob: eeb2c814e8fbdbe560506458a49fd7c98dfb3f7f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
// 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 WEBKIT_GLUE_PLUGINS_FAKE_PLUGIN_WINDOW_TRACKER_MAC_H_
#define WEBKIT_GLUE_PLUGINS_FAKE_PLUGIN_WINDOW_TRACKER_MAC_H_
#include <Carbon/Carbon.h>
#include "base/basictypes.h"
#include "base/scoped_cftyperef.h"
class ScopedActivePluginWindow;
class WebPluginDelegateImpl;
// Serves as a bridge between plugin delegate instances and the Carbon
// interposing library. The Carbon functions we interpose work in terms of
// WindowRefs, and we need to be able to map from those back to the plugin
// delegates that know what we should claim about the state of the world.
class __attribute__((visibility("default"))) FakePluginWindowTracker {
public:
FakePluginWindowTracker();
// Returns the shared window tracker instance.
static FakePluginWindowTracker* SharedInstance();
// Creates a new fake window ref associated with |delegate|.
WindowRef GenerateFakeWindowForDelegate(WebPluginDelegateImpl* delegate);
// Returns the WebPluginDelegate associated with the given fake window ref.
WebPluginDelegateImpl* GetDelegateForFakeWindow(WindowRef window) const;
// Removes the fake window ref entry for |delegate|.
void RemoveFakeWindowForDelegate(WebPluginDelegateImpl* delegate,
WindowRef window);
// Gets the window for the plugin that is currently handling an input event.
// To set the value, use ScopedActivePluginWindow.
WindowRef get_active_plugin_window();
private:
friend class ScopedActivePluginWindow;
// Sets the window corresponding to the plugin that is currently handling an
// input event.
void set_active_plugin_window(WindowRef window);
scoped_cftyperef<CFMutableDictionaryRef> window_to_delegate_map_;
WindowRef active_plugin_window_; // weak reference
DISALLOW_COPY_AND_ASSIGN(FakePluginWindowTracker);
};
// Helper to simplify correct usage of set_active_plugin_window.
// Instantiating will set the shared plugin window tracker's active window to
// |window| for the lifetime of the object, then NULL when it goes out of scope.
class ScopedActivePluginWindow {
public:
explicit ScopedActivePluginWindow(WindowRef window) : window_(window) {
FakePluginWindowTracker::SharedInstance()->set_active_plugin_window(
window_);
}
~ScopedActivePluginWindow() {
FakePluginWindowTracker::SharedInstance()->set_active_plugin_window(
NULL);
}
private:
WindowRef window_; // weak ref
DISALLOW_COPY_AND_ASSIGN(ScopedActivePluginWindow);
};
#endif // WEBKIT_GLUE_PLUGINS_FAKE_PLUGIN_WINDOW_TRACKER_MAC_H_
|
