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// 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 PointerWatcherAdapterTest = AshTestBase;
enum TestPointerCaptureEvents {
NONE = 0x01,
CAPTURE = 0x02,
WHEEL = 0x04,
PRESS_OR_RELEASE = 0x08,
MOVE = 0x10,
DRAG = 0x20
};
// Records calls to OnPointerEventObserved() in |mouse_wheel_event_count| for a
// mouse wheel event, in |capture_changed_count_| for a mouse capture change
// event and in |pointer_event_count_| for all other pointer events.
class TestPointerWatcher : public views::PointerWatcher {
public:
explicit TestPointerWatcher(views::PointerWatcherEventTypes events) {
Shell::Get()->AddPointerWatcher(this, events);
}
~TestPointerWatcher() override { Shell::Get()->RemovePointerWatcher(this); }
void ClearCounts() {
pointer_event_count_ = capture_changed_count_ = mouse_wheel_event_count_ =
move_changed_count_ = drag_changed_count_ = 0;
}
int pointer_event_count() const { return pointer_event_count_; }
int capture_changed_count() const { return capture_changed_count_; }
int mouse_wheel_event_count() const { return mouse_wheel_event_count_; }
int move_changed_count() const { return move_changed_count_; }
int drag_changed_count() const { return drag_changed_count_; }
// views::PointerWatcher:
void OnPointerEventObserved(const ui::PointerEvent& event,
const gfx::Point& location_in_screen,
gfx::NativeView target) override {
if (event.type() == ui::ET_POINTER_WHEEL_CHANGED) {
mouse_wheel_event_count_++;
} else if (event.type() == ui::ET_POINTER_CAPTURE_CHANGED) {
capture_changed_count_++;
} else if (event.type() == ui::ET_POINTER_MOVED) {
// Pointer moved events are drags if they are a touch event.
if (event.IsTouchPointerEvent()) {
drag_changed_count_++;
} else if (event.IsMousePointerEvent()) {
// Differentiate between a drag and move event.
if (event.flags() &
(ui::EF_LEFT_MOUSE_BUTTON | ui::EF_MIDDLE_MOUSE_BUTTON |
ui::EF_RIGHT_MOUSE_BUTTON)) {
drag_changed_count_++;
} else {
move_changed_count_++;
}
} else {
move_changed_count_++;
}
} else {
pointer_event_count_++;
}
}
private:
int pointer_event_count_ = 0;
int capture_changed_count_ = 0;
int mouse_wheel_event_count_ = 0;
int move_changed_count_ = 0;
int drag_changed_count_ = 0;
DISALLOW_COPY_AND_ASSIGN(TestPointerWatcher);
};
// Creates three TestPointerWatchers, one that wants moves and one that wants
// drags, and one that does not want either.
class TestHelper {
public:
TestHelper()
: basic_watcher_(views::PointerWatcherEventTypes::BASIC),
move_watcher_(views::PointerWatcherEventTypes::MOVES),
drag_watcher_(views::PointerWatcherEventTypes::DRAGS) {}
~TestHelper() = default;
// Used to verify call counts. One ExpectCallCount call should be made after
// each generated mouse events. |basic_events_bitmask| defines which events
// the test basic watcher should receive and |move_events_bitamsk| defines
// which events the test move watcher should receive and |drag_events_bitmask|
// defines which events the test drag watcher should receive.
void ExpectCallCount(int basic_events_bitmask,
int move_events_bitmask,
int drag_events_bitmask) {
// Compare the expected events in the |basic_events_bitmask| with the actual
// counts. Basic watcher should never have any move or drag counts.
EXPECT_EQ(0, basic_watcher_.move_changed_count());
EXPECT_EQ(0, basic_watcher_.drag_changed_count());
EXPECT_EQ(basic_events_bitmask & PRESS_OR_RELEASE ? 1 : 0,
basic_watcher_.pointer_event_count());
EXPECT_EQ(basic_events_bitmask & CAPTURE ? 1 : 0,
basic_watcher_.capture_changed_count());
EXPECT_EQ(basic_events_bitmask & WHEEL ? 1 : 0,
basic_watcher_.mouse_wheel_event_count());
// Compare the expected events in the |move_events_bitmask| with the actual
// counts. Move watcher should never have any drag counts.
EXPECT_EQ(0, move_watcher_.drag_changed_count());
EXPECT_EQ(move_events_bitmask & MOVE ? 1 : 0,
move_watcher_.move_changed_count());
EXPECT_EQ(move_events_bitmask & PRESS_OR_RELEASE ? 1 : 0,
move_watcher_.pointer_event_count());
EXPECT_EQ(move_events_bitmask & CAPTURE ? 1 : 0,
move_watcher_.capture_changed_count());
EXPECT_EQ(move_events_bitmask & WHEEL ? 1 : 0,
move_watcher_.mouse_wheel_event_count());
// Compare the expected events in the |drag_events_bitmask| with the actual
// counts.
EXPECT_EQ(drag_events_bitmask & MOVE ? 1 : 0,
drag_watcher_.move_changed_count());
EXPECT_EQ(drag_events_bitmask & DRAG ? 1 : 0,
drag_watcher_.drag_changed_count());
EXPECT_EQ(drag_events_bitmask & PRESS_OR_RELEASE ? 1 : 0,
drag_watcher_.pointer_event_count());
EXPECT_EQ(drag_events_bitmask & CAPTURE ? 1 : 0,
drag_watcher_.capture_changed_count());
EXPECT_EQ(drag_events_bitmask & WHEEL ? 1 : 0,
drag_watcher_.mouse_wheel_event_count());
basic_watcher_.ClearCounts();
move_watcher_.ClearCounts();
drag_watcher_.ClearCounts();
}
private:
TestPointerWatcher basic_watcher_;
TestPointerWatcher move_watcher_;
TestPointerWatcher drag_watcher_;
DISALLOW_COPY_AND_ASSIGN(TestHelper);
};
TEST_F(PointerWatcherAdapterTest, MouseEvents) {
TestHelper helper;
// Move: only the move and drag PointerWatcher should get the event.
ui::test::EventGenerator* event_generator = GetEventGenerator();
event_generator->MoveMouseTo(gfx::Point(10, 10));
helper.ExpectCallCount(NONE, MOVE, MOVE);
// Press: all.
event_generator->PressLeftButton();
helper.ExpectCallCount(PRESS_OR_RELEASE, PRESS_OR_RELEASE, PRESS_OR_RELEASE);
// Drag: only drag PointerWatcher should get the event.
event_generator->MoveMouseTo(gfx::Point(20, 30));
helper.ExpectCallCount(NONE, NONE, DRAG);
// Release: all (aura generates a capture event here).
event_generator->ReleaseLeftButton();
helper.ExpectCallCount(CAPTURE | PRESS_OR_RELEASE, CAPTURE | PRESS_OR_RELEASE,
CAPTURE | PRESS_OR_RELEASE);
// Exit: none.
event_generator->SendMouseExit();
helper.ExpectCallCount(NONE, NONE, NONE);
// Enter: none.
ui::MouseEvent enter_event(ui::ET_MOUSE_ENTERED, gfx::Point(), gfx::Point(),
ui::EventTimeForNow(), 0, 0);
event_generator->Dispatch(&enter_event);
helper.ExpectCallCount(NONE, NONE, NONE);
// Wheel: all
event_generator->MoveMouseWheel(10, 11);
helper.ExpectCallCount(WHEEL, WHEEL, WHEEL);
// Capture: all.
ui::MouseEvent capture_event(ui::ET_MOUSE_CAPTURE_CHANGED, gfx::Point(),
gfx::Point(), ui::EventTimeForNow(), 0, 0);
event_generator->Dispatch(&capture_event);
helper.ExpectCallCount(CAPTURE, CAPTURE, CAPTURE);
}
TEST_F(PointerWatcherAdapterTest, TouchEvents) {
TestHelper helper;
// Press: all.
const int touch_id = 11;
ui::test::EventGenerator* event_generator = GetEventGenerator();
event_generator->PressTouchId(touch_id);
helper.ExpectCallCount(PRESS_OR_RELEASE, PRESS_OR_RELEASE, PRESS_OR_RELEASE);
// Drag: only drag.
event_generator->MoveTouchId(gfx::Point(20, 30), touch_id);
helper.ExpectCallCount(NONE, NONE, DRAG);
// Release: both (contrary to mouse above, touch does not implicitly generate
// capture).
event_generator->ReleaseTouchId(touch_id);
helper.ExpectCallCount(PRESS_OR_RELEASE, PRESS_OR_RELEASE, PRESS_OR_RELEASE);
}
} // namespace ash
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