Enable maximize mode when keyboard is open past 180 degrees.

ash/wm/maximize_mode/maximize_mode_controller_unittest.cc

+// 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.
+
+#include "ash/wm/maximize_mode/maximize_mode_controller.h"
+
+#include "ash/accelerometer/accelerometer_controller.h"
+#include "ash/shell.h"
+#include "ash/test/ash_test_base.h"
+#include "ui/gfx/vector3d_f.h"
+
+namespace ash {
+namespace internal {
+
+class MaximizeModeControllerTest : public test::AshTestBase {
+ public:
+  MaximizeModeControllerTest() {}
+  virtual ~MaximizeModeControllerTest() {}
+
+  virtual void SetUp() OVERRIDE {
+    test::AshTestBase::SetUp();
+    Shell::GetInstance()->accelerometer_controller()->RemoveObserver(
+        maximize_mode_controller());
+  }
+
+  virtual void TearDown() OVERRIDE {
+    Shell::GetInstance()->accelerometer_controller()->AddObserver(
+        maximize_mode_controller());
+    test::AshTestBase::TearDown();
+  }
+
+  MaximizeModeController* maximize_mode_controller() {
+    return Shell::GetInstance()->maximize_mode_controller();
+  }
+
+  void TriggerAccelerometerUpdate(const gfx::Vector3dF& base,
+                                  const gfx::Vector3dF& lid) {
+    maximize_mode_controller()->OnAccelerometerUpdated(base, lid);
+  }
+
+  bool IsMaximizeModeStarted() const {
+    return Shell::GetInstance()->IsMaximizeModeWindowManagerEnabled();
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MaximizeModeControllerTest);
+};
+
+// Tests that opening the lid beyond 180 will enter touchview, and that it will
+// exit when the lid comes back from 180. Also tests the thresholds, i.e. it
+// will stick to the current mode.
+TEST_F(MaximizeModeControllerTest, EnterExitThresholds) {
+  // For the simple test the base remains steady.
+  gfx::Vector3dF base(0.0f, 0.0f, 1.0f);
+
+  // Lid open 90 degrees.
+  TriggerAccelerometerUpdate(base, gfx::Vector3dF(-1.0f, 0.0f, 0.0f));
+  EXPECT_FALSE(IsMaximizeModeStarted());
+
+  // Open just past 180.
+  TriggerAccelerometerUpdate(base, gfx::Vector3dF(0.05f, 0.0f, -1.0f));
+  EXPECT_FALSE(IsMaximizeModeStarted());
+
+  // Open up 270 degrees.
+  TriggerAccelerometerUpdate(base, gfx::Vector3dF(1.0f, 0.0f, 0.0f));
+  EXPECT_TRUE(IsMaximizeModeStarted());
+
+  // Open up 360 degrees and appearing to be slightly past it (i.e. as if almost
+  // closed).
+  TriggerAccelerometerUpdate(base, gfx::Vector3dF(-0.05f, 0.0f, 1.0f));
+  EXPECT_TRUE(IsMaximizeModeStarted());
+
+  // Open just before 180.
+  TriggerAccelerometerUpdate(base, gfx::Vector3dF(-0.05f, 0.0f, -1.0f));
+  EXPECT_TRUE(IsMaximizeModeStarted());
+
+  // Open 90 degrees.
+  TriggerAccelerometerUpdate(base, gfx::Vector3dF(-1.0f, 0.0f, 0.0f));
+  EXPECT_FALSE(IsMaximizeModeStarted());
+}
+
+// Tests that when the hinge is nearly vertically aligned, the current state
+// persists as the computed angle is highly inaccurate in this orientation.
+TEST_F(MaximizeModeControllerTest, HingeAligned) {
+   // Laptop in normal orientation lid open 90 degrees.
+  TriggerAccelerometerUpdate(gfx::Vector3dF(0.0f, 0.0f, 1.0f),
+                             gfx::Vector3dF(-1.0f, 0.0f, 0.0f));
+  EXPECT_FALSE(IsMaximizeModeStarted());
+
+  // Completely vertical.
+  TriggerAccelerometerUpdate(gfx::Vector3dF(0.0f, -1.0f, 0.0f),
+                             gfx::Vector3dF(0.0f, -1.0f, 0.0f));
+  EXPECT_FALSE(IsMaximizeModeStarted());
+
+  // Close to vertical but with hinge appearing to be open 270 degrees.
+  TriggerAccelerometerUpdate(gfx::Vector3dF(0.0f, -1.0f, 0.01f),
+                             gfx::Vector3dF(0.01f, -1.0f, 0.0f));
+  EXPECT_FALSE(IsMaximizeModeStarted());
+
+  // Flat and open 270 degrees should start maximize mode.
+  TriggerAccelerometerUpdate(gfx::Vector3dF(0.0f, 0.0f, 1.0f),
+                             gfx::Vector3dF(1.0f, 0.0f, 0.0f));
+  EXPECT_TRUE(IsMaximizeModeStarted());
+
+  // Normal 90 degree orientation but near vertical should stay in maximize
+  // mode.
+  TriggerAccelerometerUpdate(gfx::Vector3dF(0.0f, -1.0f, 0.01f),
+                             gfx::Vector3dF(-0.01f, -1.0f, 0.0f));
+  EXPECT_TRUE(IsMaximizeModeStarted());
+}
+
+}  // namespace internal
+}  // namespace ash