ui/gfx/color_profile: implement GetDisplayColorProfile on mac

ui/gfx/color_profile_mac_unittest.mm

+// Copyright 2014 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.
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/mac/scoped_nsobject.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/gfx/color_profile.h"
+#include "ui/gfx/mac/coordinate_conversion.h"
+#import "ui/gfx/test/ui_cocoa_test_helper.h"
+
+namespace {
+
+class ColorProfileTest : public ui::CocoaTest {
+ public:
+  virtual void SetUp() override {
+    ui::CocoaTest::SetUp();
+
+    // Verify the primary screen origin.
+    NSRect primary_screen_frame = PrimaryScreenFrame();
+    EXPECT_EQ(0, primary_screen_frame.origin.x);
+    EXPECT_EQ(0, primary_screen_frame.origin.y);
+
+    // Move the test window onto the screen.
+    MoveTestWindowTo(gfx::Rect(0, 0, 200, 200));
+
+    // Verify it is contained by the screen.
+    BOOL screen_contains_test_window = NSContainsRect(
+        primary_screen_frame, [test_window() frame]);
+    EXPECT_TRUE(screen_contains_test_window);
+  }
+
+  void MoveTestWindowTo(gfx::Rect bounds) {
+    [test_window() setFrame:gfx::ScreenRectToNSRect(bounds) display:NO];
+    EXPECT_EQ(bounds.ToString(), TestWindowBounds().ToString());
+  }
+
+  gfx::Rect TestWindowBounds() {
+    return gfx::ScreenRectFromNSRect([test_window() frame]);
+  }
+
+  BOOL TestWindowOnScreen() {
+    return NSIntersectsRect(PrimaryScreenFrame(), [test_window() frame]);
+  }
+
+  BOOL TestWindowContainedOnScreen() {
+    return NSContainsRect(PrimaryScreenFrame(), [test_window() frame]);
+  }
+
+  NSRect PrimaryScreenFrame() {
+    return [[[NSScreen screens] objectAtIndex:0] frame];
+  }
+};
+
+bool TestColorProfileForBounds(const gfx::Rect& bounds) {
+  std::vector<char> color_profile;
+  return gfx::GetDisplayColorProfile(bounds, &color_profile);
+}
+
+TEST_F(ColorProfileTest, GetDisplayColorProfileForOnScreenBounds) {
+  MoveTestWindowTo(gfx::Rect(10, 10, 100, 100));
+  EXPECT_FALSE(TestWindowBounds().IsEmpty());
+  EXPECT_TRUE(TestWindowContainedOnScreen());
+  EXPECT_TRUE(TestColorProfileForBounds(TestWindowBounds()));
+}
+
+TEST_F(ColorProfileTest, GetDisplayColorProfileForPartiallyOnScreenBounds) {
+  MoveTestWindowTo(gfx::Rect(-50, -50, 80, 80));
+  EXPECT_FALSE(TestWindowBounds().IsEmpty());
+  EXPECT_TRUE(TestWindowOnScreen());
+  EXPECT_TRUE(TestColorProfileForBounds(TestWindowBounds()));
+}
+
+TEST_F(ColorProfileTest, GetDisplayColorProfileForOffScreenBounds) {
+  MoveTestWindowTo(gfx::Rect(-100, -100, 10, 10));
+  EXPECT_FALSE(TestWindowBounds().IsEmpty());
+  EXPECT_FALSE(TestWindowOnScreen());
+  EXPECT_FALSE(TestColorProfileForBounds(TestWindowBounds()));
+}
+
+TEST_F(ColorProfileTest, GetDisplayColorProfileForEmptyOnScreenBounds) {
+  MoveTestWindowTo(gfx::Rect(10, 10, 0, 0));
+  EXPECT_TRUE(TestWindowBounds().IsEmpty());
+  EXPECT_FALSE(TestWindowOnScreen());
+  EXPECT_FALSE(TestColorProfileForBounds(TestWindowBounds()));
+}
+
+TEST_F(ColorProfileTest, GetDisplayColorProfileForEmptyOffScreenBounds) {
+  MoveTestWindowTo(gfx::Rect(-100, -100, 0, 0));
+  EXPECT_TRUE(TestWindowBounds().IsEmpty());
+  EXPECT_FALSE(TestWindowOnScreen());
+  EXPECT_FALSE(TestColorProfileForBounds(TestWindowBounds()));
+}
+
+}  // namespace