ash: Eliminate PointerWatcherDelegate

ash/pointer_watcher_delegate_aura_unittest.cc

-// Copyright 2016 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/shell.h"
-#include "ash/test/ash_test_base.h"
-#include "ui/events/base_event_utils.h"
-#include "ui/events/event.h"
-#include "ui/events/test/event_generator.h"
-#include "ui/views/pointer_watcher.h"
-#include "ui/views/widget/widget.h"
-
-namespace ash {
-
-using PointerWatcherDelegateAuraTest = test::AshTestBase;
-
-// Records calls to OnPointerEventObserved() in |pointer_event_count_| and
-// calls to OnMouseCaptureChanged() to |capture_changed_count_|.
-class TestPointerWatcher : public views::PointerWatcher {
- public:
-  explicit TestPointerWatcher(bool wants_moves) {
-    Shell::GetInstance()->AddPointerWatcher(this, wants_moves);
-  }
-  ~TestPointerWatcher() override {
-    Shell::GetInstance()->RemovePointerWatcher(this);
-  }
-
-  void ClearCounts() { pointer_event_count_ = capture_changed_count_ = 0; }
-
-  int pointer_event_count() const { return pointer_event_count_; }
-  int capture_changed_count() const { return capture_changed_count_; }
-
-  // views::PointerWatcher:
-  void OnPointerEventObserved(const ui::PointerEvent& event,
-                              const gfx::Point& location_in_screen,
-                              views::Widget* target) override {
-    pointer_event_count_++;
-  }
-  void OnMouseCaptureChanged() override { capture_changed_count_++; }
-
- private:
-  int pointer_event_count_ = 0;
-  int capture_changed_count_ = 0;
-
-  DISALLOW_COPY_AND_ASSIGN(TestPointerWatcher);
-};
-
-// Creates two TestPointerWatchers, one that wants moves and one that doesn't.
-class TestHelper {
- public:
-  TestHelper() : non_move_watcher_(false), move_watcher_(true) {}
-  ~TestHelper() {}
-
-  // Used to verify call counts.
-  void ExpectCallCount(int non_move_pointer_event_count,
-                       int non_move_capture_changed_count,
-                       int move_pointer_event_count,
-                       int move_capture_changed_count) {
-    EXPECT_EQ(non_move_pointer_event_count,
-              non_move_watcher_.pointer_event_count());
-    EXPECT_EQ(non_move_capture_changed_count,
-              non_move_watcher_.capture_changed_count());
-    EXPECT_EQ(move_pointer_event_count, move_watcher_.pointer_event_count());
-    EXPECT_EQ(move_capture_changed_count,
-              move_watcher_.capture_changed_count());
-
-    non_move_watcher_.ClearCounts();
-    move_watcher_.ClearCounts();
-  }
-
- private:
-  TestPointerWatcher non_move_watcher_;
-  TestPointerWatcher move_watcher_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestHelper);
-};
-
-TEST_F(PointerWatcherDelegateAuraTest, MouseEvents) {
-  TestHelper helper;
-
-  // Move: only the move PointerWatcher should get the event.
-  GetEventGenerator().MoveMouseTo(gfx::Point(10, 10));
-  helper.ExpectCallCount(0, 0, 1, 0);
-
-  // Press: both.
-  GetEventGenerator().PressLeftButton();
-  helper.ExpectCallCount(1, 0, 1, 0);
-
-  // Drag: none.
-  GetEventGenerator().MoveMouseTo(gfx::Point(20, 30));
-  helper.ExpectCallCount(0, 0, 0, 0);
-
-  // Release: both (aura generates a capture event here).
-  GetEventGenerator().ReleaseLeftButton();
-  helper.ExpectCallCount(1, 1, 1, 1);
-
-  // Exit: none.
-  GetEventGenerator().SendMouseExit();
-  helper.ExpectCallCount(0, 0, 0, 0);
-
-  // Enter: none.
-  ui::MouseEvent enter_event(ui::ET_MOUSE_ENTERED, gfx::Point(), gfx::Point(),
-                             ui::EventTimeForNow(), 0, 0);
-  GetEventGenerator().Dispatch(&enter_event);
-  helper.ExpectCallCount(0, 0, 0, 0);
-
-  // Wheel: none
-  GetEventGenerator().MoveMouseWheel(10, 11);
-  helper.ExpectCallCount(0, 0, 0, 0);
-
-  // Capture: both.
-  ui::MouseEvent capture_event(ui::ET_MOUSE_CAPTURE_CHANGED, gfx::Point(),
-                               gfx::Point(), ui::EventTimeForNow(), 0, 0);
-  GetEventGenerator().Dispatch(&capture_event);
-  helper.ExpectCallCount(0, 1, 0, 1);
-}
-
-TEST_F(PointerWatcherDelegateAuraTest, TouchEvents) {
-  TestHelper helper;
-
-  // Press: both.
-  const int touch_id = 11;
-  GetEventGenerator().PressTouchId(touch_id);
-  helper.ExpectCallCount(1, 0, 1, 0);
-
-  // Drag: none.
-  GetEventGenerator().MoveTouchId(gfx::Point(20, 30), touch_id);
-  helper.ExpectCallCount(0, 0, 0, 0);
-
-  // Release: both (contrary to mouse above, touch does not implicitly generate
-  // capture).
-  GetEventGenerator().ReleaseTouchId(touch_id);
-  helper.ExpectCallCount(1, 0, 1, 0);
-}
-
-}  // namespace ash