ui/base/accelerators/accelerator_manager_unittest.cc

   1 // Copyright (c) 2012 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 #include "ui/base/accelerators/accelerator_manager.h"
   6
   7 #include "base/compiler_specific.h"
   8 #include "testing/gtest/include/gtest/gtest.h"
   9 #include "ui/events/event_constants.h"
  10 #include "ui/events/keycodes/keyboard_codes.h"
  11
  12 namespace ui {
  13 namespace test {
  14
  15 namespace {
  16
  17 class TestTarget : public AcceleratorTarget {
  18  public:
  19   TestTarget() : accelerator_pressed_count_(0) {}
  20   ~TestTarget() override {}
  21
  22   int accelerator_pressed_count() const {
  23     return accelerator_pressed_count_;
  24   }
  25
  26   void set_accelerator_pressed_count(int accelerator_pressed_count) {
  27     accelerator_pressed_count_ = accelerator_pressed_count;
  28   }
  29
  30   // Overridden from AcceleratorTarget:
  31   bool AcceleratorPressed(const Accelerator& accelerator) override;
  32   bool CanHandleAccelerators() const override;
  33
  34  private:
  35   int accelerator_pressed_count_;
  36
  37   DISALLOW_COPY_AND_ASSIGN(TestTarget);
  38 };
  39
  40 bool TestTarget::AcceleratorPressed(const Accelerator& accelerator) {
  41   ++accelerator_pressed_count_;
  42   return true;
  43 }
  44
  45 bool TestTarget::CanHandleAccelerators() const {
  46   return true;
  47 }
  48
  49 Accelerator GetAccelerator(KeyboardCode code, int mask) {
  50   return Accelerator(code, mask);
  51 }
  52
  53 }  // namespace
  54
  55 class AcceleratorManagerTest : public testing::Test {
  56  public:
  57   AcceleratorManagerTest() {}
  58   ~AcceleratorManagerTest() override {}
  59
  60   AcceleratorManager manager_;
  61 };
  62
  63 TEST_F(AcceleratorManagerTest, Register) {
  64   const Accelerator accelerator_a(VKEY_A, EF_NONE);
  65   TestTarget target;
  66   manager_.Register(accelerator_a, AcceleratorManager::kNormalPriority,
  67                     &target);
  68
  69   // The registered accelerator is processed.
  70   EXPECT_TRUE(manager_.Process(accelerator_a));
  71   EXPECT_EQ(1, target.accelerator_pressed_count());
  72 }
  73
  74 TEST_F(AcceleratorManagerTest, RegisterMultipleTarget) {
  75   const Accelerator accelerator_a(VKEY_A, EF_NONE);
  76   TestTarget target1;
  77   manager_.Register(accelerator_a, AcceleratorManager::kNormalPriority,
  78                     &target1);
  79   TestTarget target2;
  80   manager_.Register(accelerator_a, AcceleratorManager::kNormalPriority,
  81                     &target2);
  82
  83   // If multiple targets are registered with the same accelerator, the target
  84   // registered later processes the accelerator.
  85   EXPECT_TRUE(manager_.Process(accelerator_a));
  86   EXPECT_EQ(0, target1.accelerator_pressed_count());
  87   EXPECT_EQ(1, target2.accelerator_pressed_count());
  88 }
  89
  90 TEST_F(AcceleratorManagerTest, Unregister) {
  91   const Accelerator accelerator_a(VKEY_A, EF_NONE);
  92   TestTarget target;
  93   manager_.Register(accelerator_a, AcceleratorManager::kNormalPriority,
  94                     &target);
  95   const Accelerator accelerator_b(VKEY_B, EF_NONE);
  96   manager_.Register(accelerator_b, AcceleratorManager::kNormalPriority,
  97                     &target);
  98
  99   // Unregistering a different accelerator does not affect the other
 100   // accelerator.
 101   manager_.Unregister(accelerator_b, &target);
 102   EXPECT_TRUE(manager_.Process(accelerator_a));
 103   EXPECT_EQ(1, target.accelerator_pressed_count());
 104
 105   // The unregistered accelerator is no longer processed.
 106   target.set_accelerator_pressed_count(0);
 107   manager_.Unregister(accelerator_a, &target);
 108   EXPECT_FALSE(manager_.Process(accelerator_a));
 109   EXPECT_EQ(0, target.accelerator_pressed_count());
 110 }
 111
 112 TEST_F(AcceleratorManagerTest, UnregisterAll) {
 113   const Accelerator accelerator_a(VKEY_A, EF_NONE);
 114   TestTarget target1;
 115   manager_.Register(accelerator_a, AcceleratorManager::kNormalPriority,
 116                     &target1);
 117   const Accelerator accelerator_b(VKEY_B, EF_NONE);
 118   manager_.Register(accelerator_b, AcceleratorManager::kNormalPriority,
 119                     &target1);
 120   const Accelerator accelerator_c(VKEY_C, EF_NONE);
 121   TestTarget target2;
 122   manager_.Register(accelerator_c, AcceleratorManager::kNormalPriority,
 123                     &target2);
 124   manager_.UnregisterAll(&target1);
 125
 126   // All the accelerators registered for |target1| are no longer processed.
 127   EXPECT_FALSE(manager_.Process(accelerator_a));
 128   EXPECT_FALSE(manager_.Process(accelerator_b));
 129   EXPECT_EQ(0, target1.accelerator_pressed_count());
 130
 131   // UnregisterAll with a different target does not affect the other target.
 132   EXPECT_TRUE(manager_.Process(accelerator_c));
 133   EXPECT_EQ(1, target2.accelerator_pressed_count());
 134 }
 135
 136 TEST_F(AcceleratorManagerTest, Process) {
 137   TestTarget target;
 138
 139   // Test all 2*2*2 cases (shift/control/alt = on/off).
 140   for (int mask = 0; mask < 2 * 2 * 2; ++mask) {
 141     Accelerator accelerator(GetAccelerator(VKEY_A, mask));
 142     const base::string16 text = accelerator.GetShortcutText();
 143     manager_.Register(accelerator, AcceleratorManager::kNormalPriority,
 144                       &target);
 145
 146     // The registered accelerator is processed.
 147     const int last_count = target.accelerator_pressed_count();
 148     EXPECT_TRUE(manager_.Process(accelerator)) << text;
 149     EXPECT_EQ(last_count + 1, target.accelerator_pressed_count()) << text;
 150
 151     // The non-registered accelerators are not processed.
 152     accelerator.set_type(ET_UNKNOWN);
 153     EXPECT_FALSE(manager_.Process(accelerator)) << text;  // different type
 154     accelerator.set_type(ET_KEY_RELEASED);
 155     EXPECT_FALSE(manager_.Process(accelerator)) << text;  // different type
 156
 157     EXPECT_FALSE(manager_.Process(GetAccelerator(VKEY_UNKNOWN, mask)))
 158         << text;  // different vkey
 159     EXPECT_FALSE(manager_.Process(GetAccelerator(VKEY_B, mask)))
 160         << text;  // different vkey
 161     EXPECT_FALSE(manager_.Process(GetAccelerator(VKEY_SHIFT, mask)))
 162         << text;  // different vkey
 163
 164     for (int test_mask = 0; test_mask < 2 * 2 * 2; ++test_mask) {
 165       if (test_mask == mask)
 166         continue;
 167       const Accelerator test_accelerator(GetAccelerator(VKEY_A, test_mask));
 168       const base::string16 test_text = test_accelerator.GetShortcutText();
 169       EXPECT_FALSE(manager_.Process(test_accelerator))
 170           << text << ", " << test_text;  // different modifiers
 171     }
 172
 173     EXPECT_EQ(last_count + 1, target.accelerator_pressed_count()) << text;
 174     manager_.UnregisterAll(&target);
 175   }
 176 }
 177
 178 }  // namespace test
 179 }  // namespace ui