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      1 // Copyright 2010 Google Inc. All Rights Reserved
      2 
      3 
      4 #include "talk/base/gunit.h"
      5 #include "talk/base/common.h"
      6 #include "talk/base/logging.h"
      7 #include "talk/base/win32window.h"
      8 #include "talk/base/win32windowpicker.h"
      9 #include "talk/base/windowpicker.h"
     10 
     11 #ifndef WIN32
     12 #error Only for Windows
     13 #endif
     14 
     15 namespace talk_base {
     16 
     17 static const TCHAR* kVisibleWindowTitle = L"Visible Window";
     18 static const TCHAR* kInvisibleWindowTitle = L"Invisible Window";
     19 
     20 class Win32WindowPickerForTest : public Win32WindowPicker {
     21  public:
     22   Win32WindowPickerForTest() {
     23     EXPECT_TRUE(visible_window_.Create(NULL, kVisibleWindowTitle, WS_VISIBLE,
     24                                        0, 0, 0, 0, 0));
     25     EXPECT_TRUE(invisible_window_.Create(NULL, kInvisibleWindowTitle, 0,
     26                                          0, 0, 0, 0, 0));
     27   }
     28 
     29   ~Win32WindowPickerForTest() {
     30     visible_window_.Destroy();
     31     invisible_window_.Destroy();
     32   }
     33 
     34   virtual bool GetWindowList(WindowDescriptionList* descriptions) {
     35     if (!Win32WindowPicker::EnumProc(visible_window_.handle(),
     36                                      reinterpret_cast<LPARAM>(descriptions))) {
     37       return false;
     38     }
     39     if (!Win32WindowPicker::EnumProc(invisible_window_.handle(),
     40                                      reinterpret_cast<LPARAM>(descriptions))) {
     41       return false;
     42     }
     43     return true;
     44   }
     45 
     46   Win32Window* visible_window() {
     47     return &visible_window_;
     48   }
     49 
     50   Win32Window* invisible_window() {
     51     return &invisible_window_;
     52   }
     53 
     54  private:
     55   Win32Window visible_window_;
     56   Win32Window invisible_window_;
     57 };
     58 
     59 TEST(Win32WindowPickerTest, TestGetWindowList) {
     60   Win32WindowPickerForTest window_picker;
     61   WindowDescriptionList descriptions;
     62   EXPECT_TRUE(window_picker.GetWindowList(&descriptions));
     63   EXPECT_EQ(1, descriptions.size());
     64   WindowDescription desc = descriptions.front();
     65   EXPECT_EQ(window_picker.visible_window()->handle(), desc.id().id());
     66   TCHAR window_title[500];
     67   GetWindowText(window_picker.visible_window()->handle(), window_title,
     68                 ARRAY_SIZE(window_title));
     69   EXPECT_EQ(0, wcscmp(window_title, kVisibleWindowTitle));
     70 }
     71 
     72 TEST(Win32WindowPickerTest, TestIsVisible) {
     73   Win32WindowPickerForTest window_picker;
     74   HWND visible_id = window_picker.visible_window()->handle();
     75   HWND invisible_id = window_picker.invisible_window()->handle();
     76   EXPECT_TRUE(window_picker.IsVisible(WindowId(visible_id)));
     77   EXPECT_FALSE(window_picker.IsVisible(WindowId(invisible_id)));
     78 }
     79 
     80 TEST(Win32WindowPickerTest, TestMoveToFront) {
     81   Win32WindowPickerForTest window_picker;
     82   HWND visible_id = window_picker.visible_window()->handle();
     83   HWND invisible_id = window_picker.invisible_window()->handle();
     84 
     85   // There are a number of condition where SetForegroundWindow might
     86   // fail depending on the state of the calling process. To be on the
     87   // safe side we doesn't expect MoveToFront to return true, just test
     88   // that we don't crash.
     89   window_picker.MoveToFront(WindowId(visible_id));
     90   window_picker.MoveToFront(WindowId(invisible_id));
     91 }
     92 
     93 }  // namespace talk_base
     94