bool AsyncPanZoomController::DoFling(const TimeDuration& aDelta) {
if (mState != FLING) {
return false;
}
bool shouldContinueFlingX = mX.FlingApplyFrictionOrCancel(aDelta),
shouldContinueFlingY = mY.FlingApplyFrictionOrCancel(aDelta);
// If we shouldn't continue the fling, let's just stop and repaint.
if (!shouldContinueFlingX && !shouldContinueFlingY) {
RequestContentRepaint();
mState = NOTHING;
return false;
}
// We want to inversely scale it because when you're zoomed further in, a
// larger swipe should move you a shorter distance.
float inverseScale = 1 / mFrameMetrics.mResolution.width;
ScrollBy(nsIntPoint(
mX.GetDisplacementForDuration(inverseScale, aDelta),
mY.GetDisplacementForDuration(inverseScale, aDelta)
));
RequestContentRepaint();
return true;
}
TEST_F(APZHitTestingTester, TestRepaintFlushOnWheelEvents) {
// The purpose of this test is to ensure that wheel events trigger a repaint
// flush as per bug 1166871, and that the wheel event untransform is a no-op.
CreateSimpleScrollingLayer();
ScopedLayerTreeRegistration registration(manager, 0, root, mcc);
manager->UpdateHitTestingTree(nullptr, root, false, 0, 0);
TestAsyncPanZoomController* apzcroot = ApzcOf(root);
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(AtLeast(3));
ScreenPoint origin(100, 50);
for (int i = 0; i < 3; i++) {
ScrollWheelInput swi(MillisecondsSinceStartup(mcc->Time()), mcc->Time(), 0,
ScrollWheelInput::SCROLLMODE_INSTANT, ScrollWheelInput::SCROLLDELTA_PIXEL,
origin, 0, 10, false);
EXPECT_EQ(nsEventStatus_eConsumeDoDefault, manager->ReceiveInputEvent(swi, nullptr, nullptr));
EXPECT_EQ(origin, swi.mOrigin);
AsyncTransform viewTransform;
ParentLayerPoint point;
apzcroot->SampleContentTransformForFrame(&viewTransform, point);
EXPECT_EQ(0, point.x);
EXPECT_EQ((i + 1) * 10, point.y);
EXPECT_EQ(0, viewTransform.mTranslation.x);
EXPECT_EQ((i + 1) * -10, viewTransform.mTranslation.y);
mcc->AdvanceByMillis(5);
}
}
void AsyncPanZoomController::TrackTouch(const MultiTouchInput& aEvent) {
TimeDuration timeDelta = TimeDuration().FromMilliseconds(aEvent.mTime - mLastEventTime);
// Probably a duplicate event, just throw it away.
if (timeDelta.ToMilliseconds() <= EPSILON) {
return;
}
UpdateWithTouchAtDevicePoint(aEvent);
{
MonitorAutoLock monitor(mMonitor);
// We want to inversely scale it because when you're zoomed further in, a
// larger swipe should move you a shorter distance.
float inverseScale = 1 / mFrameMetrics.mResolution.width;
PRInt32 xDisplacement = mX.GetDisplacementForDuration(inverseScale, timeDelta);
PRInt32 yDisplacement = mY.GetDisplacementForDuration(inverseScale, timeDelta);
if (!xDisplacement && !yDisplacement) {
return;
}
ScrollBy(nsIntPoint(xDisplacement, yDisplacement));
ScheduleComposite();
if (aEvent.mTime - mLastRepaint >= PAN_REPAINT_INTERVAL) {
RequestContentRepaint();
mLastRepaint = aEvent.mTime;
}
}
}
nsEventStatus AsyncPanZoomController::OnTouchEnd(const MultiTouchInput& aEvent) {
switch (mState) {
case FLING:
// Should never happen.
NS_WARNING("Received impossible touch end in OnTouchEnd.");
// Fall through.
case NOTHING:
// May happen if the user double-taps and drags without lifting after the
// second tap. Ignore if this happens.
return nsEventStatus_eIgnore;
case TOUCHING:
mState = NOTHING;
return nsEventStatus_eIgnore;
case PANNING:
{
MonitorAutoLock monitor(mMonitor);
ScheduleComposite();
RequestContentRepaint();
}
mState = FLING;
return nsEventStatus_eConsumeNoDefault;
case PINCHING:
mState = NOTHING;
// Scale gesture listener should have handled this.
NS_WARNING("Gesture listener should have handled pinching in OnTouchEnd.");
return nsEventStatus_eIgnore;
}
return nsEventStatus_eConsumeNoDefault;
}
nsEventStatus AsyncPanZoomController::OnScaleEnd(const PinchGestureInput& aEvent) {
mState = PANNING;
mX.StartTouch(aEvent.mFocusPoint.x);
mY.StartTouch(aEvent.mFocusPoint.y);
{
MonitorAutoLock monitor(mMonitor);
ScheduleComposite();
RequestContentRepaint();
}
return nsEventStatus_eConsumeNoDefault;
}
void AsyncPanZoomController::NotifyLayersUpdated(const FrameMetrics& aViewportFrame, bool aIsFirstPaint) {
MonitorAutoLock monitor(mMonitor);
mLastContentPaintMetrics = aViewportFrame;
if (aIsFirstPaint || mFrameMetrics.IsDefault()) {
mX.StopTouch();
mY.StopTouch();
mFrameMetrics = aViewportFrame;
mFrameMetrics.mResolution.width = 1 / mFrameMetrics.mResolution.width;
mFrameMetrics.mResolution.height = 1 / mFrameMetrics.mResolution.height;
SetPageRect(mFrameMetrics.mCSSContentRect);
// Bug 776413/fixme: Request a repaint as soon as a page is loaded so that
// we get a larger displayport. This is very bad because we're wasting a
// paint and not initializating the displayport correctly.
RequestContentRepaint();
} else if (!mFrameMetrics.mContentRect.IsEqualEdges(aViewportFrame.mContentRect)) {
mFrameMetrics.mCSSContentRect = aViewportFrame.mCSSContentRect;
SetPageRect(mFrameMetrics.mCSSContentRect);
}
}
TEST_F(APZCBasicTester, Overzoom) {
// the visible area of the document in CSS pixels is x=10 y=0 w=100 h=100
FrameMetrics fm;
fm.SetCompositionBounds(ParentLayerRect(0, 0, 100, 100));
fm.SetScrollableRect(CSSRect(0, 0, 125, 150));
fm.SetScrollOffset(CSSPoint(10, 0));
fm.SetZoom(CSSToParentLayerScale2D(1.0, 1.0));
fm.SetIsRootContent(true);
apzc->SetFrameMetrics(fm);
MakeApzcZoomable();
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(1);
PinchWithPinchInputAndCheckStatus(apzc, ScreenIntPoint(50, 50), 0.5, true);
fm = apzc->GetFrameMetrics();
EXPECT_EQ(0.8f, fm.GetZoom().ToScaleFactor().scale);
// bug 936721 - PGO builds introduce rounding error so
// use a fuzzy match instead
EXPECT_LT(std::abs(fm.GetScrollOffset().x), 1e-5);
EXPECT_LT(std::abs(fm.GetScrollOffset().y), 1e-5);
}
void DoPinchTest(bool aShouldTriggerPinch,
nsTArray<uint32_t> *aAllowedTouchBehaviors = nullptr)
{
apzc->SetFrameMetrics(GetPinchableFrameMetrics());
MakeApzcZoomable();
if (aShouldTriggerPinch) {
// One repaint request for each gesture.
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(2);
} else {
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(0);
}
int touchInputId = 0;
if (mGestureBehavior == AsyncPanZoomController::USE_GESTURE_DETECTOR) {
PinchWithTouchInputAndCheckStatus(apzc, 250, 300, 1.25, touchInputId, aShouldTriggerPinch, aAllowedTouchBehaviors);
} else {
PinchWithPinchInputAndCheckStatus(apzc, 250, 300, 1.25, aShouldTriggerPinch);
}
FrameMetrics fm = apzc->GetFrameMetrics();
if (aShouldTriggerPinch) {
// the visible area of the document in CSS pixels is now x=305 y=310 w=40 h=80
EXPECT_EQ(2.5f, fm.GetZoom().ToScaleFactor().scale);
EXPECT_EQ(305, fm.GetScrollOffset().x);
EXPECT_EQ(310, fm.GetScrollOffset().y);
} else {
// The frame metrics should stay the same since touch-action:none makes
// apzc ignore pinch gestures.
EXPECT_EQ(2.0f, fm.GetZoom().ToScaleFactor().scale);
EXPECT_EQ(300, fm.GetScrollOffset().x);
EXPECT_EQ(300, fm.GetScrollOffset().y);
}
// part 2 of the test, move to the top-right corner of the page and pinch and
// make sure we stay in the correct spot
fm.SetZoom(CSSToParentLayerScale2D(2.0, 2.0));
fm.SetScrollOffset(CSSPoint(930, 5));
apzc->SetFrameMetrics(fm);
// the visible area of the document in CSS pixels is x=930 y=5 w=50 h=100
if (mGestureBehavior == AsyncPanZoomController::USE_GESTURE_DETECTOR) {
PinchWithTouchInputAndCheckStatus(apzc, 250, 300, 0.5, touchInputId, aShouldTriggerPinch, aAllowedTouchBehaviors);
} else {
PinchWithPinchInputAndCheckStatus(apzc, 250, 300, 0.5, aShouldTriggerPinch);
}
fm = apzc->GetFrameMetrics();
if (aShouldTriggerPinch) {
// the visible area of the document in CSS pixels is now x=880 y=0 w=100 h=200
EXPECT_EQ(1.0f, fm.GetZoom().ToScaleFactor().scale);
EXPECT_EQ(880, fm.GetScrollOffset().x);
EXPECT_EQ(0, fm.GetScrollOffset().y);
} else {
EXPECT_EQ(2.0f, fm.GetZoom().ToScaleFactor().scale);
EXPECT_EQ(930, fm.GetScrollOffset().x);
EXPECT_EQ(5, fm.GetScrollOffset().y);
}
}
TEST_F(APZHitTestingTester, TestRepaintFlushOnNewInputBlock) {
SCOPED_GFX_PREF(TouchActionEnabled, bool, false);
// The main purpose of this test is to verify that touch-start events (or anything
// that starts a new input block) don't ever get untransformed. This should always
// hold because the APZ code should flush repaints when we start a new input block
// and the transform to gecko space should be empty.
CreateSimpleScrollingLayer();
ScopedLayerTreeRegistration registration(manager, 0, root, mcc);
manager->UpdateHitTestingTree(nullptr, root, false, 0, 0);
TestAsyncPanZoomController* apzcroot = ApzcOf(root);
// At this point, the following holds (all coordinates in screen pixels):
// layers[0] has content from (0,0)-(500,500), clipped by composition bounds (0,0)-(200,200)
MockFunction<void(std::string checkPointName)> check;
{
InSequence s;
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(AtLeast(1));
EXPECT_CALL(check, Call("post-first-touch-start"));
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(AtLeast(1));
EXPECT_CALL(check, Call("post-second-fling"));
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(AtLeast(1));
EXPECT_CALL(check, Call("post-second-touch-start"));
}
// This first pan will move the APZC by 50 pixels, and dispatch a paint request.
ApzcPanNoFling(apzcroot, 100, 50);
// Verify that a touch start doesn't get untransformed
ScreenIntPoint touchPoint(50, 50);
MultiTouchInput mti = CreateMultiTouchInput(MultiTouchInput::MULTITOUCH_START, mcc->Time());
mti.mTouches.AppendElement(SingleTouchData(0, touchPoint, ScreenSize(0, 0), 0, 0));
EXPECT_EQ(nsEventStatus_eConsumeDoDefault, manager->ReceiveInputEvent(mti, nullptr, nullptr));
EXPECT_EQ(touchPoint, mti.mTouches[0].mScreenPoint);
check.Call("post-first-touch-start");
// Send a touchend to clear state
mti.mType = MultiTouchInput::MULTITOUCH_END;
manager->ReceiveInputEvent(mti, nullptr, nullptr);
mcc->AdvanceByMillis(1000);
// Now do two pans. The first of these will dispatch a repaint request, as above.
// The second will get stuck in the paint throttler because the first one doesn't
// get marked as "completed", so this will result in a non-empty LD transform.
// (Note that any outstanding repaint requests from the first half of this test
// don't impact this half because we advance the time by 1 second, which will trigger
// the max-wait-exceeded codepath in the paint throttler).
ApzcPanNoFling(apzcroot, 100, 50);
check.Call("post-second-fling");
ApzcPanNoFling(apzcroot, 100, 50);
// Ensure that a touch start again doesn't get untransformed by flushing
// a repaint
mti.mType = MultiTouchInput::MULTITOUCH_START;
EXPECT_EQ(nsEventStatus_eConsumeDoDefault, manager->ReceiveInputEvent(mti, nullptr, nullptr));
EXPECT_EQ(touchPoint, mti.mTouches[0].mScreenPoint);
check.Call("post-second-touch-start");
mti.mType = MultiTouchInput::MULTITOUCH_END;
EXPECT_EQ(nsEventStatus_eConsumeDoDefault, manager->ReceiveInputEvent(mti, nullptr, nullptr));
EXPECT_EQ(touchPoint, mti.mTouches[0].mScreenPoint);
}
// A more involved hit testing test that involves css and async transforms.
TEST_F(APZHitTestingTester, HitTesting2) {
SCOPED_GFX_PREF(APZVelocityBias, float, 0.0); // Velocity bias can cause extra repaint requests
CreateHitTesting2LayerTree();
ScopedLayerTreeRegistration registration(manager, 0, root, mcc);
manager->UpdateHitTestingTree(nullptr, root, false, 0, 0);
// At this point, the following holds (all coordinates in screen pixels):
// layers[0] has content from (0,0)-(200,200), clipped by composition bounds (0,0)-(100,100)
// layers[1] has content from (10,10)-(90,90), clipped by composition bounds (10,10)-(50,50)
// layers[2] has content from (20,60)-(100,100). no clipping as it's not a scrollable layer
// layers[3] has content from (20,60)-(180,140), clipped by composition bounds (20,60)-(100,100)
TestAsyncPanZoomController* apzcroot = ApzcOf(root);
TestAsyncPanZoomController* apzc1 = ApzcOf(layers[1]);
TestAsyncPanZoomController* apzc3 = ApzcOf(layers[3]);
// Hit an area that's clearly on the root layer but not any of the child layers.
RefPtr<AsyncPanZoomController> hit = GetTargetAPZC(ScreenPoint(75, 25));
EXPECT_EQ(apzcroot, hit.get());
EXPECT_EQ(ParentLayerPoint(75, 25), transformToApzc * ScreenPoint(75, 25));
EXPECT_EQ(ScreenPoint(75, 25), transformToGecko * ParentLayerPoint(75, 25));
// Hit an area on the root that would be on layers[3] if layers[2]
// weren't transformed.
// Note that if layers[2] were scrollable, then this would hit layers[2]
// because its composition bounds would be at (10,60)-(50,100) (and the
// scale-only transform that we set on layers[2] would be invalid because
// it would place the layer into overscroll, as its composition bounds
// start at x=10 but its content at x=20).
hit = GetTargetAPZC(ScreenPoint(15, 75));
EXPECT_EQ(apzcroot, hit.get());
EXPECT_EQ(ParentLayerPoint(15, 75), transformToApzc * ScreenPoint(15, 75));
EXPECT_EQ(ScreenPoint(15, 75), transformToGecko * ParentLayerPoint(15, 75));
// Hit an area on layers[1].
hit = GetTargetAPZC(ScreenPoint(25, 25));
EXPECT_EQ(apzc1, hit.get());
EXPECT_EQ(ParentLayerPoint(25, 25), transformToApzc * ScreenPoint(25, 25));
EXPECT_EQ(ScreenPoint(25, 25), transformToGecko * ParentLayerPoint(25, 25));
// Hit an area on layers[3].
hit = GetTargetAPZC(ScreenPoint(25, 75));
EXPECT_EQ(apzc3, hit.get());
// transformToApzc should unapply layers[2]'s transform
EXPECT_EQ(ParentLayerPoint(12.5, 75), transformToApzc * ScreenPoint(25, 75));
// and transformToGecko should reapply it
EXPECT_EQ(ScreenPoint(25, 75), transformToGecko * ParentLayerPoint(12.5, 75));
// Hit an area on layers[3] that would be on the root if layers[2]
// weren't transformed.
hit = GetTargetAPZC(ScreenPoint(75, 75));
EXPECT_EQ(apzc3, hit.get());
// transformToApzc should unapply layers[2]'s transform
EXPECT_EQ(ParentLayerPoint(37.5, 75), transformToApzc * ScreenPoint(75, 75));
// and transformToGecko should reapply it
EXPECT_EQ(ScreenPoint(75, 75), transformToGecko * ParentLayerPoint(37.5, 75));
// Pan the root layer upward by 50 pixels.
// This causes layers[1] to scroll out of view, and an async transform
// of -50 to be set on the root layer.
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(1);
// This first pan will move the APZC by 50 pixels, and dispatch a paint request.
// Since this paint request is in the queue to Gecko, transformToGecko will
// take it into account.
ApzcPanNoFling(apzcroot, 100, 50);
// Hit where layers[3] used to be. It should now hit the root.
hit = GetTargetAPZC(ScreenPoint(75, 75));
EXPECT_EQ(apzcroot, hit.get());
// transformToApzc doesn't unapply the root's own async transform
EXPECT_EQ(ParentLayerPoint(75, 75), transformToApzc * ScreenPoint(75, 75));
// and transformToGecko unapplies it and then reapplies it, because by the
// time the event being transformed reaches Gecko the new paint request will
// have been handled.
EXPECT_EQ(ScreenPoint(75, 75), transformToGecko * ParentLayerPoint(75, 75));
// Hit where layers[1] used to be and where layers[3] should now be.
hit = GetTargetAPZC(ScreenPoint(25, 25));
EXPECT_EQ(apzc3, hit.get());
// transformToApzc unapplies both layers[2]'s css transform and the root's
// async transform
EXPECT_EQ(ParentLayerPoint(12.5, 75), transformToApzc * ScreenPoint(25, 25));
// transformToGecko reapplies both the css transform and the async transform
// because we have already issued a paint request with it.
EXPECT_EQ(ScreenPoint(25, 25), transformToGecko * ParentLayerPoint(12.5, 75));
// This second pan will move the APZC by another 50 pixels.
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(1);
ApzcPanNoFling(apzcroot, 100, 50);
// Hit where layers[3] used to be. It should now hit the root.
hit = GetTargetAPZC(ScreenPoint(75, 75));
EXPECT_EQ(apzcroot, hit.get());
// transformToApzc doesn't unapply the root's own async transform
EXPECT_EQ(ParentLayerPoint(75, 75), transformToApzc * ScreenPoint(75, 75));
// transformToGecko unapplies the full async transform of -100 pixels
EXPECT_EQ(ScreenPoint(75, 75), transformToGecko * ParentLayerPoint(75, 75));
// Hit where layers[1] used to be. It should now hit the root.
hit = GetTargetAPZC(ScreenPoint(25, 25));
EXPECT_EQ(apzcroot, hit.get());
// transformToApzc doesn't unapply the root's own async transform
EXPECT_EQ(ParentLayerPoint(25, 25), transformToApzc * ScreenPoint(25, 25));
// transformToGecko unapplies the full async transform of -100 pixels
EXPECT_EQ(ScreenPoint(25, 25), transformToGecko * ParentLayerPoint(25, 25));
}
void DoLongPressPreventDefaultTest(uint32_t aBehavior) {
MakeApzcUnzoomable();
EXPECT_CALL(*mcc, RequestContentRepaint(_)).Times(0);
int touchX = 10,
touchStartY = 10,
touchEndY = 50;
uint64_t blockId = 0;
nsEventStatus status = TouchDown(apzc, ScreenIntPoint(touchX, touchStartY), mcc->Time(), &blockId);
EXPECT_EQ(nsEventStatus_eConsumeDoDefault, status);
if (gfxPrefs::TouchActionEnabled() && status != nsEventStatus_eConsumeNoDefault) {
// SetAllowedTouchBehavior() must be called after sending touch-start.
nsTArray<uint32_t> allowedTouchBehaviors;
allowedTouchBehaviors.AppendElement(aBehavior);
apzc->SetAllowedTouchBehavior(blockId, allowedTouchBehaviors);
}
// Have content "respond" to the touchstart
apzc->ContentReceivedInputBlock(blockId, false);
MockFunction<void(std::string checkPointName)> check;
{
InSequence s;
EXPECT_CALL(check, Call("preHandleLongTap"));
blockId++;
EXPECT_CALL(*mcc, HandleLongTap(CSSPoint(touchX, touchStartY), 0, apzc->GetGuid(), blockId)).Times(1);
EXPECT_CALL(check, Call("postHandleLongTap"));
}
// Manually invoke the longpress while the touch is currently down.
check.Call("preHandleLongTap");
mcc->RunThroughDelayedTasks();
check.Call("postHandleLongTap");
// There should be a TimeoutContentResponse task in the queue still,
// waiting for the response from the longtap event dispatched above.
// Send the signal that content has handled the long-tap, and then run
// the timeout task (it will be a no-op because the content "wins" the
// race. This takes the place of the "contextmenu" event.
apzc->ContentReceivedInputBlock(blockId, true);
mcc->AdvanceByMillis(1000);
MultiTouchInput mti = CreateMultiTouchInput(MultiTouchInput::MULTITOUCH_MOVE, mcc->Time());
mti.mTouches.AppendElement(SingleTouchData(0, ParentLayerPoint(touchX, touchEndY), ScreenSize(0, 0), 0, 0));
status = apzc->ReceiveInputEvent(mti, nullptr);
EXPECT_EQ(nsEventStatus_eConsumeDoDefault, status);
EXPECT_CALL(*mcc, HandleSingleTap(CSSPoint(touchX, touchEndY), 0, apzc->GetGuid())).Times(0);
status = TouchUp(apzc, ScreenIntPoint(touchX, touchEndY), mcc->Time());
EXPECT_EQ(nsEventStatus_eConsumeDoDefault, status);
ParentLayerPoint pointOut;
AsyncTransform viewTransformOut;
apzc->SampleContentTransformForFrame(&viewTransformOut, pointOut);
EXPECT_EQ(ParentLayerPoint(), pointOut);
EXPECT_EQ(AsyncTransform(), viewTransformOut);
apzc->AssertStateIsReset();
}