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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
// Copyright (c) 2010 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.
#include "webkit/plugins/npapi/test/plugin_npobject_lifetime_test.h"
namespace NPAPIClient {
const int kNPObjectLifetimeTimer = 100;
const int kNPObjectLifetimeTimerElapse = 2000;
NPObject* NPObjectLifetimeTestInstance2::plugin_instance_object_ = NULL;
NPObjectDeletePluginInNPN_Evaluate*
NPObjectDeletePluginInNPN_Evaluate::g_npn_evaluate_test_instance_ = NULL;
NPObjectLifetimeTest::NPObjectLifetimeTest(NPP id,
NPNetscapeFuncs *host_functions)
: PluginTest(id, host_functions),
other_plugin_instance_object_(NULL),
timer_id_(0) {
}
NPError NPObjectLifetimeTest::SetWindow(NPWindow* pNPWindow) {
if (pNPWindow->window == NULL)
return NPERR_NO_ERROR;
HWND window_handle = reinterpret_cast<HWND>(pNPWindow->window);
if (!::GetProp(window_handle, L"Plugin_Instance")) {
// TODO: this propery leaks.
::SetProp(window_handle, L"Plugin_Instance", this);
// We attempt to retreive the NPObject for the plugin instance identified
// by the NPObjectLifetimeTestInstance2 class as it may not have been
// instantiated yet.
timer_id_ = SetTimer(window_handle, kNPObjectLifetimeTimer,
kNPObjectLifetimeTimerElapse, TimerProc);
}
return NPERR_NO_ERROR;
}
void CALLBACK NPObjectLifetimeTest::TimerProc(
HWND window, UINT message, UINT_PTR timer_id,
DWORD elapsed_milli_seconds) {
NPObjectLifetimeTest* this_instance =
reinterpret_cast<NPObjectLifetimeTest*>
(::GetProp(window, L"Plugin_Instance"));
KillTimer(window, this_instance->timer_id_);
::RemoveProp(window, L"Plugin_Instance");
this_instance->timer_id_ = 0;
this_instance->other_plugin_instance_object_ =
NPObjectLifetimeTestInstance2::plugin_instance_object_;
this_instance->HostFunctions()->retainobject(
this_instance->other_plugin_instance_object_);
NPString script;
script.UTF8Characters = "javascript:DeleteSecondPluginInstance()";
script.UTF8Length = static_cast<uint32_t>(strlen(script.UTF8Characters));
this_instance->HostFunctions()->geturlnotify(
this_instance->id(), "javascript:DeleteSecondPluginInstance()", NULL,
reinterpret_cast<void*>(1));
}
void NPObjectLifetimeTest::URLNotify(const char* url, NPReason reason,
void* data) {
// Create a "location" identifier.
NPIdentifier identifier = HostFunctions()->getstringidentifier("location");
// Declare a local variant value.
NPVariant variantValue;
// Get the location property from the window object (which is another object).
bool b1 = HostFunctions()->getproperty(id(), other_plugin_instance_object_,
identifier, &variantValue );
HostFunctions()->releaseobject(other_plugin_instance_object_);
other_plugin_instance_object_ = NULL;
// If this test failed, then we'd have crashed by now.
SignalTestCompleted();
}
NPObjectLifetimeTestInstance2::NPObjectLifetimeTestInstance2(
NPP id, NPNetscapeFuncs *host_functions)
: PluginTest(id, host_functions) {
}
NPObjectLifetimeTestInstance2::~NPObjectLifetimeTestInstance2() {
if (plugin_instance_object_) {
HostFunctions()->releaseobject(plugin_instance_object_);
plugin_instance_object_ = NULL;
}
}
NPError NPObjectLifetimeTestInstance2::SetWindow(NPWindow* pNPWindow) {
if (pNPWindow->window == NULL)
return NPERR_NO_ERROR;
if (!plugin_instance_object_) {
if (!HostFunctions()->getvalue(id(), NPNVWindowNPObject,
&plugin_instance_object_)) {
SetError("Failed to get NPObject for plugin instance2");
SignalTestCompleted();
return NPERR_GENERIC_ERROR;
}
}
return NPERR_NO_ERROR;
}
NPObjectDeletePluginInNPN_Evaluate::NPObjectDeletePluginInNPN_Evaluate(
NPP id, NPNetscapeFuncs *host_functions)
: PluginTest(id, host_functions),
plugin_instance_object_(NULL),
timer_id_(0) {
g_npn_evaluate_test_instance_ = this;
}
NPObjectDeletePluginInNPN_Evaluate::~NPObjectDeletePluginInNPN_Evaluate() {
if (plugin_instance_object_) {
HostFunctions()->releaseobject(plugin_instance_object_);
plugin_instance_object_ = NULL;
}
}
NPError NPObjectDeletePluginInNPN_Evaluate::SetWindow(NPWindow* np_window) {
if (np_window->window == NULL)
return NPERR_NO_ERROR;
HWND window_handle = reinterpret_cast<HWND>(np_window->window);
// We setup a timerproc to invoke NPN_Evaluate to destroy this plugin
// instance. This is to ensure that we don't destroy the plugin instance
// while it is being used in webkit as this leads to crashes and is a
// more accurate representation of the renderer crash as described in
// http://b/issue?id=1134683.
if (!timer_id_) {
timer_id_ = SetTimer(window_handle, kNPObjectLifetimeTimer,
kNPObjectLifetimeTimerElapse, TimerProc);
}
return NPERR_NO_ERROR;
}
void CALLBACK NPObjectDeletePluginInNPN_Evaluate::TimerProc(
HWND window, UINT message, UINT_PTR timer_id,
DWORD elapsed_milli_seconds) {
KillTimer(window, g_npn_evaluate_test_instance_->timer_id_);
g_npn_evaluate_test_instance_->timer_id_ = 0;
NPObject *window_obj = NULL;
g_npn_evaluate_test_instance_->HostFunctions()->getvalue(
g_npn_evaluate_test_instance_->id(), NPNVWindowNPObject,
&window_obj);
if (!window_obj) {
g_npn_evaluate_test_instance_->SetError(
"Failed to get NPObject for plugin instance2");
g_npn_evaluate_test_instance_->SignalTestCompleted();
return;
}
std::string script = "javascript:DeletePluginWithinScript()";
NPString script_string;
script_string.UTF8Characters = script.c_str();
script_string.UTF8Length =
static_cast<unsigned int>(script.length());
NPVariant result_var;
bool result = g_npn_evaluate_test_instance_->HostFunctions()->evaluate(
g_npn_evaluate_test_instance_->id(), window_obj,
&script_string, &result_var);
// If this test failed we would have crashed by now.
}
} // namespace NPAPIClient
|
