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1 // Copyright (c) 2010 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 #include "content/test/plugin/plugin_windowed_test.h"
6 
7 #include "base/logging.h"
8 #include "content/test/plugin/plugin_client.h"
9 
10 namespace NPAPIClient {
11 
WindowedPluginTest(NPP id,NPNetscapeFuncs * host_functions)12 WindowedPluginTest::WindowedPluginTest(NPP id, NPNetscapeFuncs *host_functions)
13     : PluginTest(id, host_functions),
14       window_(NULL), done_(false) {
15 }
16 
~WindowedPluginTest()17 WindowedPluginTest::~WindowedPluginTest() {
18   if (window_)
19     DestroyWindow(window_);
20 }
21 
SetWindow(NPWindow * pNPWindow)22 NPError WindowedPluginTest::SetWindow(NPWindow* pNPWindow) {
23   if (pNPWindow->window == NULL)
24     return NPERR_NO_ERROR;
25 
26   if (test_name() == "create_instance_in_paint" && test_id() == "2") {
27     SignalTestCompleted();
28     return NPERR_NO_ERROR;
29   }
30 
31   if (window_)
32     return NPERR_NO_ERROR;
33 
34   HWND parent = reinterpret_cast<HWND>(pNPWindow->window);
35   if (!::IsWindow(parent)) {
36     SetError("Invalid arguments passed in");
37     return NPERR_INVALID_PARAM;
38   }
39 
40   if ((test_name() == "create_instance_in_paint" && test_id() == "1") ||
41       test_name() == "alert_in_window_message" ||
42       test_name() == "set_title_in_paint" ||
43       test_name() == "set_title_in_set_window_and_paint") {
44     static ATOM window_class = 0;
45     if (!window_class) {
46       WNDCLASSEX wcex;
47       wcex.cbSize         = sizeof(WNDCLASSEX);
48       wcex.style          = CS_DBLCLKS;
49       wcex.lpfnWndProc    = &NPAPIClient::WindowedPluginTest::WindowProc;
50       wcex.cbClsExtra     = 0;
51       wcex.cbWndExtra     = 0;
52       wcex.hInstance      = GetModuleHandle(NULL);
53       wcex.hIcon          = 0;
54       wcex.hCursor        = 0;
55       wcex.hbrBackground  = reinterpret_cast<HBRUSH>(COLOR_WINDOW+1);
56       wcex.lpszMenuName   = 0;
57       wcex.lpszClassName  = L"CreateInstanceInPaintTestWindowClass";
58       wcex.hIconSm        = 0;
59       window_class = RegisterClassEx(&wcex);
60     }
61 
62     window_ = CreateWindowEx(
63         WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR,
64         MAKEINTATOM(window_class), 0,
65         WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_VISIBLE ,
66         0, 0, 100, 100, parent, 0, GetModuleHandle(NULL), 0);
67     DCHECK(window_);
68     // TODO: this propery leaks.
69     ::SetProp(window_, L"Plugin_Instance", this);
70   }
71 
72   if (test_name() == "set_title_in_set_window_and_paint")
73     CallJSFunction(this, "PluginCreated");
74 
75   return NPERR_NO_ERROR;
76 }
77 
Destroy()78 NPError WindowedPluginTest::Destroy() {
79   if (test_name() != "ensure_scripting_works_in_destroy")
80     return NPERR_NO_ERROR;
81 
82   // Bug 23706: ensure that scripting works with no asserts.
83   NPObject *window_obj = NULL;
84   HostFunctions()->getvalue(id(), NPNVWindowNPObject,&window_obj);
85 
86   if (!window_obj) {
87     SetError("Failed to get NPObject for plugin instance");
88   } else {
89     std::string script = "javascript:GetMagicNumber()";
90     NPString script_string;
91     script_string.UTF8Characters = script.c_str();
92     script_string.UTF8Length =
93         static_cast<unsigned int>(script.length());
94 
95     NPVariant result_var;
96     bool result = HostFunctions()->evaluate(
97         id(), window_obj, &script_string, &result_var);
98     if (!result ||
99         result_var.type != NPVariantType_Double ||
100         result_var.value.doubleValue != 42.0) {
101       SetError("Failed to script during NPP_Destroy");
102     }
103   }
104 
105   SignalTestCompleted();
106   return NPERR_NO_ERROR;
107 }
108 
CallJSFunction(WindowedPluginTest * this_ptr,const char * function)109 void WindowedPluginTest::CallJSFunction(
110     WindowedPluginTest* this_ptr, const char* function) {
111   NPIdentifier function_id = this_ptr->HostFunctions()->getstringidentifier(
112       function);
113 
114   NPObject *window_obj = NULL;
115   this_ptr->HostFunctions()->getvalue(
116       this_ptr->id(), NPNVWindowNPObject, &window_obj);
117 
118   NPVariant rv;
119   this_ptr->HostFunctions()->invoke(
120       this_ptr->id(), window_obj, function_id, NULL, 0, &rv);
121 }
122 
WindowProc(HWND window,UINT message,WPARAM wparam,LPARAM lparam)123 LRESULT CALLBACK WindowedPluginTest::WindowProc(
124     HWND window, UINT message, WPARAM wparam, LPARAM lparam) {
125   WindowedPluginTest* this_ptr =
126       reinterpret_cast<WindowedPluginTest*>
127           (::GetProp(window, L"Plugin_Instance"));
128 
129   if (message == WM_PAINT) {
130     PAINTSTRUCT ps;
131     HDC hdc = BeginPaint(window, &ps);
132     HBRUSH brush = CreateSolidBrush(RGB(255, 0, 0));
133     HGDIOBJ orig = SelectObject(hdc, brush);
134     RECT r;
135     GetClientRect(window, &r);
136     Rectangle(hdc, 0, 0, r.right, r.bottom);
137     SelectObject(hdc, orig); // restore
138     DeleteObject(brush);
139     EndPaint(window, &ps);
140   }
141 
142   if (this_ptr && !this_ptr->done_) {
143     if (this_ptr->test_name() == "create_instance_in_paint" &&
144         message == WM_PAINT) {
145       this_ptr->done_ = true;
146       CallJSFunction(this_ptr, "CreateNewInstance");
147     } else if (this_ptr->test_name() == "alert_in_window_message" &&
148                message == WM_PAINT) {
149       this_ptr->done_ = true;
150       // We call this function twice as we want to display two alerts
151       // and verify that we don't hang the browser.
152       CallJSFunction(this_ptr, "CallAlert");
153       CallJSFunction(this_ptr, "CallAlert");
154     } else if (this_ptr->test_name() == "set_title_in_paint" &&
155                message == WM_PAINT) {
156       this_ptr->done_ = true;
157       CallJSFunction(this_ptr, "SetTitle");
158     } else if (this_ptr->test_name() == "set_title_in_set_window_and_paint" &&
159                message == WM_PAINT) {
160       this_ptr->done_ = true;
161       CallJSFunction(this_ptr, "PluginShown");
162     }
163 
164     if (this_ptr->done_) {
165       ::RemoveProp(window, L"Plugin_Instance");
166     }
167   }
168 
169   return DefWindowProc(window, message, wparam, lparam);
170 }
171 
172 } // namespace NPAPIClient
173