1/*
2 *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#include "webrtc/modules/desktop_capture/window_capturer.h"
12
13#include "testing/gtest/include/gtest/gtest.h"
14#include "webrtc/base/scoped_ptr.h"
15#include "webrtc/modules/desktop_capture/desktop_capture_options.h"
16#include "webrtc/modules/desktop_capture/desktop_frame.h"
17#include "webrtc/modules/desktop_capture/desktop_region.h"
18#include "webrtc/system_wrappers/include/logging.h"
19
20namespace webrtc {
21
22class WindowCapturerTest : public testing::Test,
23                           public DesktopCapturer::Callback {
24 public:
25  void SetUp() override {
26    capturer_.reset(
27        WindowCapturer::Create(DesktopCaptureOptions::CreateDefault()));
28  }
29
30  void TearDown() override {}
31
32  // DesktopCapturer::Callback interface
33  SharedMemory* CreateSharedMemory(size_t size) override { return NULL; }
34
35  void OnCaptureCompleted(DesktopFrame* frame) override { frame_.reset(frame); }
36
37 protected:
38  rtc::scoped_ptr<WindowCapturer> capturer_;
39  rtc::scoped_ptr<DesktopFrame> frame_;
40};
41
42// Verify that we can enumerate windows.
43TEST_F(WindowCapturerTest, Enumerate) {
44  WindowCapturer::WindowList windows;
45  EXPECT_TRUE(capturer_->GetWindowList(&windows));
46
47  // Verify that window titles are set.
48  for (WindowCapturer::WindowList::iterator it = windows.begin();
49       it != windows.end(); ++it) {
50    EXPECT_FALSE(it->title.empty());
51  }
52}
53
54// Verify we can capture a window.
55//
56// TODO(sergeyu): Currently this test just looks at the windows that already
57// exist. Ideally it should create a test window and capture from it, but there
58// is no easy cross-platform way to create new windows (potentially we could
59// have a python script showing Tk dialog, but launching code will differ
60// between platforms).
61TEST_F(WindowCapturerTest, Capture) {
62  WindowCapturer::WindowList windows;
63  capturer_->Start(this);
64  EXPECT_TRUE(capturer_->GetWindowList(&windows));
65
66  // Verify that we can select and capture each window.
67  for (WindowCapturer::WindowList::iterator it = windows.begin();
68       it != windows.end(); ++it) {
69    frame_.reset();
70    if (capturer_->SelectWindow(it->id)) {
71      capturer_->Capture(DesktopRegion());
72    }
73
74    // If we failed to capture a window make sure it no longer exists.
75    if (!frame_.get()) {
76      WindowCapturer::WindowList new_list;
77      EXPECT_TRUE(capturer_->GetWindowList(&new_list));
78      for (WindowCapturer::WindowList::iterator new_list_it = new_list.begin();
79           new_list_it != new_list.end(); ++new_list_it) {
80        EXPECT_FALSE(it->id == new_list_it->id);
81      }
82      continue;
83    }
84
85    EXPECT_GT(frame_->size().width(), 0);
86    EXPECT_GT(frame_->size().height(), 0);
87  }
88}
89
90}  // namespace webrtc
91