chromium/ui/ozone/platform/wayland/host/wayland_zwp_pointer_gestures_unittest.cc

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <pointer-gestures-unstable-v1-server-protocol.h>
#include <wayland-util.h>

#include "build/chromeos_buildflags.h"
#include "ui/events/event.h"
#include "ui/events/platform/platform_event_observer.h"
#include "ui/ozone/platform/wayland/host/wayland_event_source.h"
#include "ui/ozone/platform/wayland/host/wayland_seat.h"
#include "ui/ozone/platform/wayland/host/wayland_zwp_pointer_gestures.h"
#include "ui/ozone/platform/wayland/test/mock_pointer.h"
#include "ui/ozone/platform/wayland/test/mock_surface.h"
#include "ui/ozone/platform/wayland/test/wayland_test.h"

namespace ui {

namespace {

// Observes events, filters the pinch zoom updates, and records the latest
// update to the scale.
class PinchEventScaleRecorder : public PlatformEventObserver { … };

}  // namespace

class WaylandPointerGesturesTest : public WaylandTestSimple { … };

ACTION_P(CloneEvent, ptr) { … }

// Tests that scale in pinch zoom events is fixed to the progression expected by
// the compositor.
//
// During the pinch zoom session, libinput sends the current scale relative to
// the start of the session.  The compositor, however, expects every update to
// have the relative change of the scale, compared to the previous update in
// form of a multiplier applied to the current value.  The factor is fixed at
// the low level immediately after values are received from the server via
// WaylandZwpPointerGestures methods.
//
// See https://crbug.com/1283652
TEST_F(WaylandPointerGesturesTest, PinchZoomScale) { … }

// Test ensures Hold Event ends a fling.
TEST_F(WaylandPointerGesturesTest, HoldEventCancelsFling) { … }

}  // namespace ui