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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "APZCBasicTester.h"
#include "APZTestCommon.h"
#include "InputUtils.h"
class APZCPanningTester : public APZCBasicTester {
protected:
void DoPanTest(bool aShouldTriggerScroll, bool aShouldBeConsumed, uint32_t aBehavior)
{
if (aShouldTriggerScroll) {
// One repaint request for each pan.
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(2);
} else {
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(0);
}
int touchStart = 50;
int touchEnd = 10;
ParentLayerPoint pointOut;
AsyncTransform viewTransformOut;
nsTArray<uint32_t> allowedTouchBehaviors;
allowedTouchBehaviors.AppendElement(aBehavior);
// Pan down
PanAndCheckStatus(apzc, touchStart, touchEnd, aShouldBeConsumed, &allowedTouchBehaviors);
apzc->SampleContentTransformForFrame(&viewTransformOut, pointOut);
if (aShouldTriggerScroll) {
EXPECT_EQ(ParentLayerPoint(0, -(touchEnd-touchStart)), pointOut);
EXPECT_NE(AsyncTransform(), viewTransformOut);
} else {
EXPECT_EQ(ParentLayerPoint(), pointOut);
EXPECT_EQ(AsyncTransform(), viewTransformOut);
}
// Clear the fling from the previous pan, or stopping it will
// consume the next touchstart
apzc->CancelAnimation();
// Pan back
PanAndCheckStatus(apzc, touchEnd, touchStart, aShouldBeConsumed, &allowedTouchBehaviors);
apzc->SampleContentTransformForFrame(&viewTransformOut, pointOut);
EXPECT_EQ(ParentLayerPoint(), pointOut);
EXPECT_EQ(AsyncTransform(), viewTransformOut);
}
void DoPanWithPreventDefaultTest()
{
MakeApzcWaitForMainThread();
int touchStart = 50;
int touchEnd = 10;
ParentLayerPoint pointOut;
AsyncTransform viewTransformOut;
uint64_t blockId = 0;
// Pan down
nsTArray<uint32_t> allowedTouchBehaviors;
allowedTouchBehaviors.AppendElement(mozilla::layers::AllowedTouchBehavior::VERTICAL_PAN);
PanAndCheckStatus(apzc, touchStart, touchEnd, true, &allowedTouchBehaviors, &blockId);
// Send the signal that content has handled and preventDefaulted the touch
// events. This flushes the event queue.
apzc->ContentReceivedInputBlock(blockId, true);
apzc->SampleContentTransformForFrame(&viewTransformOut, pointOut);
EXPECT_EQ(ParentLayerPoint(), pointOut);
EXPECT_EQ(AsyncTransform(), viewTransformOut);
apzc->AssertStateIsReset();
}
};
TEST_F(APZCPanningTester, Pan) {
SCOPED_GFX_PREF(TouchActionEnabled, bool, false);
SCOPED_GFX_PREF(APZVelocityBias, float, 0.0); // Velocity bias can cause extra repaint requests
DoPanTest(true, true, mozilla::layers::AllowedTouchBehavior::NONE);
}
// In the each of the following 4 pan tests we are performing two pan gestures: vertical pan from top
// to bottom and back - from bottom to top.
// According to the pointer-events/touch-action spec AUTO and PAN_Y touch-action values allow vertical
// scrolling while NONE and PAN_X forbid it. The first parameter of DoPanTest method specifies this
// behavior.
// However, the events will be marked as consumed even if the behavior in PAN_X, because the user could
// move their finger horizontally too - APZ has no way of knowing beforehand and so must consume the
// events.
TEST_F(APZCPanningTester, PanWithTouchActionAuto) {
SCOPED_GFX_PREF(TouchActionEnabled, bool, true);
SCOPED_GFX_PREF(APZVelocityBias, float, 0.0); // Velocity bias can cause extra repaint requests
DoPanTest(true, true, mozilla::layers::AllowedTouchBehavior::HORIZONTAL_PAN
| mozilla::layers::AllowedTouchBehavior::VERTICAL_PAN);
}
TEST_F(APZCPanningTester, PanWithTouchActionNone) {
SCOPED_GFX_PREF(TouchActionEnabled, bool, true);
SCOPED_GFX_PREF(APZVelocityBias, float, 0.0); // Velocity bias can cause extra repaint requests
DoPanTest(false, false, 0);
}
TEST_F(APZCPanningTester, PanWithTouchActionPanX) {
SCOPED_GFX_PREF(TouchActionEnabled, bool, true);
SCOPED_GFX_PREF(APZVelocityBias, float, 0.0); // Velocity bias can cause extra repaint requests
DoPanTest(false, true, mozilla::layers::AllowedTouchBehavior::HORIZONTAL_PAN);
}
TEST_F(APZCPanningTester, PanWithTouchActionPanY) {
SCOPED_GFX_PREF(TouchActionEnabled, bool, true);
SCOPED_GFX_PREF(APZVelocityBias, float, 0.0); // Velocity bias can cause extra repaint requests
DoPanTest(true, true, mozilla::layers::AllowedTouchBehavior::VERTICAL_PAN);
}
TEST_F(APZCPanningTester, PanWithPreventDefaultAndTouchAction) {
SCOPED_GFX_PREF(TouchActionEnabled, bool, true);
DoPanWithPreventDefaultTest();
}
TEST_F(APZCPanningTester, PanWithPreventDefault) {
SCOPED_GFX_PREF(TouchActionEnabled, bool, false);
DoPanWithPreventDefaultTest();
}
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