chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager_test_utils.h

   1 // Copyright 2014 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 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_USERS_WALLPAPER_WALLPAPER_MANAGER_TEST_UTILS_H_
   6 #define CHROME_BROWSER_CHROMEOS_LOGIN_USERS_WALLPAPER_WALLPAPER_MANAGER_TEST_UTILS_H_
   7
   8 #include <vector>
   9
  10 #include "ash/ash_constants.h"
  11 #include "ui/gfx/image/image_skia.h"
  12
  13 namespace base {
  14 class CommandLine;
  15 class ScopedTempDir;
  16 }  // namespace base
  17
  18 namespace chromeos {
  19 namespace wallpaper_manager_test_utils {
  20
  21 // Colors used for different default wallpapers by CreateCmdlineWallpapers().
  22 extern const SkColor kLargeDefaultWallpaperColor;
  23 extern const SkColor kSmallDefaultWallpaperColor;
  24 extern const SkColor kLargeGuestWallpaperColor;
  25 extern const SkColor kSmallGuestWallpaperColor;
  26 extern const SkColor kLargeChildWallpaperColor;
  27 extern const SkColor kSmallChildWallpaperColor;
  28
  29 // A custom color, specifically chosen to not
  30 // conflict with any of the default wallpaper colors.
  31 extern const SkColor kCustomWallpaperColor;
  32
  33 // Dimension used for width and height of default wallpaper images. A
  34 // small value is used to minimize the amount of time spent compressing
  35 // and writing images.
  36 extern const int kWallpaperSize;
  37
  38 // Creates compressed JPEG image of solid color.
  39 // Result bytes are written to |output|.
  40 // Returns true if gfx::JPEGCodec::Encode() succeeds.
  41 bool CreateJPEGImage(int width,
  42                      int height,
  43                      SkColor color,
  44                      std::vector<unsigned char>* output);
  45
  46 // Creates a test image of given size.
  47 gfx::ImageSkia CreateTestImage(int width, int height, SkColor color);
  48
  49 // Writes a JPEG image of the specified size and color to |path|. Returns
  50 // true on success.
  51 bool WriteJPEGFile(const base::FilePath& path,
  52                    int width,
  53                    int height,
  54                    SkColor color);
  55
  56 // Returns true if the color at the center of |image| is close to
  57 // |expected_color|. (The center is used so small wallpaper images can be
  58 // used.)
  59 bool ImageIsNearColor(gfx::ImageSkia image, SkColor expected_color);
  60
  61 // Wait until all wallpaper loading is done, and WallpaperManager comes into
  62 // a stable state.
  63 void WaitAsyncWallpaperLoadFinished();
  64
  65 // Initializes default wallpaper paths "*default_*file" and writes JPEG
  66 // wallpaper images to them.
  67 // Only needs to be called (once) by tests that want to test loading of
  68 // default wallpapers.
  69 void CreateCmdlineWallpapers(const base::ScopedTempDir& dir,
  70                              scoped_ptr<base::CommandLine>* command_line);
  71
  72 }  // namespace wallpaper_manager_test_utils
  73 }  // namespace chromeos
  74
  75 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USERS_WALLPAPER_WALLPAPER_MANAGER_TEST_UTILS_H_