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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /gfx/layers/apz/src/GestureEventListener.cpp | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/layers/apz/src/GestureEventListener.cpp')
-rw-r--r-- | gfx/layers/apz/src/GestureEventListener.cpp | 663 |
1 files changed, 663 insertions, 0 deletions
diff --git a/gfx/layers/apz/src/GestureEventListener.cpp b/gfx/layers/apz/src/GestureEventListener.cpp new file mode 100644 index 0000000000..b54674b593 --- /dev/null +++ b/gfx/layers/apz/src/GestureEventListener.cpp @@ -0,0 +1,663 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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 "GestureEventListener.h" +#include <algorithm> // for max +#include <math.h> // for fabsf +#include <stddef.h> // for size_t +#include "AsyncPanZoomController.h" // for AsyncPanZoomController +#include "InputBlockState.h" // for TouchBlockState +#include "base/task.h" // for CancelableTask, etc +#include "InputBlockState.h" // for TouchBlockState +#include "mozilla/StaticPrefs_apz.h" +#include "mozilla/StaticPrefs_ui.h" +#include "nsDebug.h" // for NS_WARNING +#include "nsMathUtils.h" // for NS_hypot + +static mozilla::LazyLogModule sApzGelLog("apz.gesture"); +#define GEL_LOG(...) MOZ_LOG(sApzGelLog, LogLevel::Debug, (__VA_ARGS__)) + +namespace mozilla { +namespace layers { + +/** + * Amount of span or focus change needed to take us from the + * GESTURE_WAITING_PINCH state to the GESTURE_PINCH state. This is measured as + * either a change in distance between the fingers used to compute the span + * ratio, or the a change in position of the focus point between the two + * fingers. + */ +static const float PINCH_START_THRESHOLD = 35.0f; + +/** + * Determines how fast a one touch pinch zooms in and out. The greater the + * value, the faster it zooms. + */ +static const float ONE_TOUCH_PINCH_SPEED = 0.005f; + +static bool sLongTapEnabled = true; + +static ScreenPoint GetCurrentFocus(const MultiTouchInput& aEvent) { + const ScreenPoint& firstTouch = aEvent.mTouches[0].mScreenPoint; + const ScreenPoint& secondTouch = aEvent.mTouches[1].mScreenPoint; + return (firstTouch + secondTouch) / 2; +} + +static ScreenCoord GetCurrentSpan(const MultiTouchInput& aEvent) { + const ScreenPoint& firstTouch = aEvent.mTouches[0].mScreenPoint; + const ScreenPoint& secondTouch = aEvent.mTouches[1].mScreenPoint; + ScreenPoint delta = secondTouch - firstTouch; + return delta.Length(); +} + +ScreenCoord GestureEventListener::GetYSpanFromGestureStartPoint() { + // use the position that began the one-touch-pinch gesture rather + // mTouchStartPosition + const ScreenPoint start = mOneTouchPinchStartPosition; + const ScreenPoint& current = mTouches[0].mScreenPoint; + return current.y - start.y; +} + +static TapGestureInput CreateTapEvent(const MultiTouchInput& aTouch, + TapGestureInput::TapGestureType aType) { + return TapGestureInput(aType, aTouch.mTimeStamp, + aTouch.mTouches[0].mScreenPoint, aTouch.modifiers); +} + +GestureEventListener::GestureEventListener( + AsyncPanZoomController* aAsyncPanZoomController) + : mAsyncPanZoomController(aAsyncPanZoomController), + mState(GESTURE_NONE), + mSpanChange(0.0f), + mPreviousSpan(0.0f), + mFocusChange(0.0f), + mLastTouchInput(MultiTouchInput::MULTITOUCH_START, 0, TimeStamp(), 0), + mLastTapInput(MultiTouchInput::MULTITOUCH_START, 0, TimeStamp(), 0), + mLongTapTimeoutTask(nullptr), + mMaxTapTimeoutTask(nullptr) {} + +GestureEventListener::~GestureEventListener() = default; + +nsEventStatus GestureEventListener::HandleInputEvent( + const MultiTouchInput& aEvent) { + GEL_LOG("Receiving event type %d with %zu touches in state %d\n", + aEvent.mType, aEvent.mTouches.Length(), mState); + + nsEventStatus rv = nsEventStatus_eIgnore; + + // Cache the current event since it may become the single or long tap that we + // send. + mLastTouchInput = aEvent; + + switch (aEvent.mType) { + case MultiTouchInput::MULTITOUCH_START: + mTouches.Clear(); + // Cache every touch. + for (size_t i = 0; i < aEvent.mTouches.Length(); i++) { + mTouches.AppendElement(aEvent.mTouches[i]); + } + + if (aEvent.mTouches.Length() == 1) { + rv = HandleInputTouchSingleStart(); + } else { + rv = HandleInputTouchMultiStart(); + } + break; + case MultiTouchInput::MULTITOUCH_MOVE: + // Update the screen points of the cached touches. + for (size_t i = 0; i < aEvent.mTouches.Length(); i++) { + for (size_t j = 0; j < mTouches.Length(); j++) { + if (aEvent.mTouches[i].mIdentifier == mTouches[j].mIdentifier) { + mTouches[j].mScreenPoint = aEvent.mTouches[i].mScreenPoint; + mTouches[j].mLocalScreenPoint = + aEvent.mTouches[i].mLocalScreenPoint; + } + } + } + rv = HandleInputTouchMove(); + break; + case MultiTouchInput::MULTITOUCH_END: + // Remove the cache of the touch that ended. + for (size_t i = 0; i < aEvent.mTouches.Length(); i++) { + for (size_t j = 0; j < mTouches.Length(); j++) { + if (aEvent.mTouches[i].mIdentifier == mTouches[j].mIdentifier) { + mTouches.RemoveElementAt(j); + break; + } + } + } + + rv = HandleInputTouchEnd(); + break; + case MultiTouchInput::MULTITOUCH_CANCEL: + mTouches.Clear(); + rv = HandleInputTouchCancel(); + break; + } + + return rv; +} + +int32_t GestureEventListener::GetLastTouchIdentifier() const { + if (mTouches.Length() != 1) { + NS_WARNING( + "GetLastTouchIdentifier() called when last touch event " + "did not have one touch"); + } + return mTouches.IsEmpty() ? -1 : mTouches[0].mIdentifier; +} + +/* static */ +void GestureEventListener::SetLongTapEnabled(bool aLongTapEnabled) { + sLongTapEnabled = aLongTapEnabled; +} + +/* static */ +bool GestureEventListener::IsLongTapEnabled() { return sLongTapEnabled; } + +void GestureEventListener::EnterFirstSingleTouchDown() { + SetState(GESTURE_FIRST_SINGLE_TOUCH_DOWN); + mTouchStartPosition = mLastTouchInput.mTouches[0].mScreenPoint; + mTouchStartOffset = mLastTouchInput.mScreenOffset; + + if (sLongTapEnabled) { + CreateLongTapTimeoutTask(); + } + CreateMaxTapTimeoutTask(); +} + +nsEventStatus GestureEventListener::HandleInputTouchSingleStart() { + switch (mState) { + case GESTURE_NONE: + EnterFirstSingleTouchDown(); + break; + case GESTURE_FIRST_SINGLE_TOUCH_UP: + if (SecondTapIsFar()) { + // If the second tap goes down far away from the first, then bail out + // of any gesture that includes the first tap. + CancelLongTapTimeoutTask(); + CancelMaxTapTimeoutTask(); + mSingleTapSent = Nothing(); + + // But still allow the second tap to participate in a gesture + // (e.g. lead to a single tap, or a double tap if an additional + // tap occurs near the same location). + EnterFirstSingleTouchDown(); + } else { + // Otherwise, reset the touch start position so that, if this turns into + // a one-touch-pinch gesture, it uses the second tap's down position as + // the focus, rather than the first tap's. + mTouchStartPosition = mLastTouchInput.mTouches[0].mScreenPoint; + mTouchStartOffset = mLastTouchInput.mScreenOffset; + SetState(GESTURE_SECOND_SINGLE_TOUCH_DOWN); + } + break; + default: + NS_WARNING("Unhandled state upon single touch start"); + SetState(GESTURE_NONE); + break; + } + + return nsEventStatus_eIgnore; +} + +nsEventStatus GestureEventListener::HandleInputTouchMultiStart() { + nsEventStatus rv = nsEventStatus_eIgnore; + + switch (mState) { + case GESTURE_NONE: + SetState(GESTURE_MULTI_TOUCH_DOWN); + break; + case GESTURE_FIRST_SINGLE_TOUCH_DOWN: + CancelLongTapTimeoutTask(); + CancelMaxTapTimeoutTask(); + SetState(GESTURE_MULTI_TOUCH_DOWN); + // Prevent APZC::OnTouchStart() from handling MULTITOUCH_START event + rv = nsEventStatus_eConsumeNoDefault; + break; + case GESTURE_FIRST_SINGLE_TOUCH_MAX_TAP_DOWN: + CancelLongTapTimeoutTask(); + SetState(GESTURE_MULTI_TOUCH_DOWN); + // Prevent APZC::OnTouchStart() from handling MULTITOUCH_START event + rv = nsEventStatus_eConsumeNoDefault; + break; + case GESTURE_FIRST_SINGLE_TOUCH_UP: + case GESTURE_SECOND_SINGLE_TOUCH_DOWN: + // Cancel wait for double tap + CancelMaxTapTimeoutTask(); + MOZ_ASSERT(mSingleTapSent.isSome()); + if (!mSingleTapSent.value()) { + TriggerSingleTapConfirmedEvent(); + } + mSingleTapSent = Nothing(); + SetState(GESTURE_MULTI_TOUCH_DOWN); + // Prevent APZC::OnTouchStart() from handling MULTITOUCH_START event + rv = nsEventStatus_eConsumeNoDefault; + break; + case GESTURE_LONG_TOUCH_DOWN: + SetState(GESTURE_MULTI_TOUCH_DOWN); + break; + case GESTURE_MULTI_TOUCH_DOWN: + case GESTURE_PINCH: + // Prevent APZC::OnTouchStart() from handling MULTITOUCH_START event + rv = nsEventStatus_eConsumeNoDefault; + break; + default: + NS_WARNING("Unhandled state upon multitouch start"); + SetState(GESTURE_NONE); + break; + } + + return rv; +} + +bool GestureEventListener::MoveDistanceExceeds(ScreenCoord aThreshold) const { + ExternalPoint start = AsyncPanZoomController::ToExternalPoint( + mTouchStartOffset, mTouchStartPosition); + ExternalPoint end = AsyncPanZoomController::ToExternalPoint( + mLastTouchInput.mScreenOffset, mLastTouchInput.mTouches[0].mScreenPoint); + return (start - end).Length() > aThreshold; +} + +bool GestureEventListener::MoveDistanceIsLarge() const { + return MoveDistanceExceeds(mAsyncPanZoomController->GetTouchStartTolerance()); +} + +bool GestureEventListener::SecondTapIsFar() const { + // Allow a little more room here, because the is actually lifting their finger + // off the screen before replacing it, and that tends to have more error than + // wiggling the finger while on the screen. + return MoveDistanceExceeds(mAsyncPanZoomController->GetSecondTapTolerance()); +} + +nsEventStatus GestureEventListener::HandleInputTouchMove() { + nsEventStatus rv = nsEventStatus_eIgnore; + + switch (mState) { + case GESTURE_NONE: + // Ignore this input signal as the corresponding events get handled by + // APZC + break; + + case GESTURE_LONG_TOUCH_DOWN: + if (MoveDistanceIsLarge()) { + // So that we don't fire a long-tap-up if the user moves around after a + // long-tap + SetState(GESTURE_NONE); + } + break; + + case GESTURE_FIRST_SINGLE_TOUCH_DOWN: + case GESTURE_FIRST_SINGLE_TOUCH_MAX_TAP_DOWN: { + // If we move too much, bail out of the tap. + if (MoveDistanceIsLarge()) { + CancelLongTapTimeoutTask(); + CancelMaxTapTimeoutTask(); + mSingleTapSent = Nothing(); + SetState(GESTURE_NONE); + } + break; + } + + // The user has performed a double tap, but not lifted her finger. + case GESTURE_SECOND_SINGLE_TOUCH_DOWN: { + // If touch has moved noticeably (within StaticPrefs::apz_max_tap_time()), + // change state. + if (MoveDistanceIsLarge()) { + CancelLongTapTimeoutTask(); + CancelMaxTapTimeoutTask(); + mSingleTapSent = Nothing(); + if (!StaticPrefs::apz_one_touch_pinch_enabled()) { + // If the one-touch-pinch feature is disabled, bail out of the double- + // tap gesture instead. + SetState(GESTURE_NONE); + break; + } + + SetState(GESTURE_ONE_TOUCH_PINCH); + + ScreenCoord currentSpan = 1.0f; + ScreenPoint currentFocus = mTouchStartPosition; + + // save the position that the one-touch-pinch gesture actually begins + mOneTouchPinchStartPosition = mLastTouchInput.mTouches[0].mScreenPoint; + + PinchGestureInput pinchEvent( + PinchGestureInput::PINCHGESTURE_START, PinchGestureInput::ONE_TOUCH, + mLastTouchInput.mTimeStamp, mLastTouchInput.mScreenOffset, + currentFocus, currentSpan, currentSpan, mLastTouchInput.modifiers); + + rv = mAsyncPanZoomController->HandleGestureEvent(pinchEvent); + + mPreviousSpan = currentSpan; + mPreviousFocus = currentFocus; + } + break; + } + + case GESTURE_MULTI_TOUCH_DOWN: { + if (mLastTouchInput.mTouches.Length() < 2) { + NS_WARNING( + "Wrong input: less than 2 moving points in " + "GESTURE_MULTI_TOUCH_DOWN state"); + break; + } + + ScreenCoord currentSpan = GetCurrentSpan(mLastTouchInput); + ScreenPoint currentFocus = GetCurrentFocus(mLastTouchInput); + + mSpanChange += fabsf(currentSpan - mPreviousSpan); + mFocusChange += (currentFocus - mPreviousFocus).Length(); + if (mSpanChange > PINCH_START_THRESHOLD || + mFocusChange > PINCH_START_THRESHOLD) { + SetState(GESTURE_PINCH); + PinchGestureInput pinchEvent( + PinchGestureInput::PINCHGESTURE_START, PinchGestureInput::TOUCH, + mLastTouchInput.mTimeStamp, mLastTouchInput.mScreenOffset, + currentFocus, currentSpan, currentSpan, mLastTouchInput.modifiers); + + rv = mAsyncPanZoomController->HandleGestureEvent(pinchEvent); + } else { + // Prevent APZC::OnTouchMove from processing a move event when two + // touches are active + rv = nsEventStatus_eConsumeNoDefault; + } + + mPreviousSpan = currentSpan; + mPreviousFocus = currentFocus; + break; + } + + case GESTURE_PINCH: { + if (mLastTouchInput.mTouches.Length() < 2) { + NS_WARNING( + "Wrong input: less than 2 moving points in GESTURE_PINCH state"); + // Prevent APZC::OnTouchMove() from handling this wrong input + rv = nsEventStatus_eConsumeNoDefault; + break; + } + + ScreenCoord currentSpan = GetCurrentSpan(mLastTouchInput); + + PinchGestureInput pinchEvent( + PinchGestureInput::PINCHGESTURE_SCALE, PinchGestureInput::TOUCH, + mLastTouchInput.mTimeStamp, mLastTouchInput.mScreenOffset, + GetCurrentFocus(mLastTouchInput), currentSpan, mPreviousSpan, + mLastTouchInput.modifiers); + + rv = mAsyncPanZoomController->HandleGestureEvent(pinchEvent); + mPreviousSpan = currentSpan; + + break; + } + + case GESTURE_ONE_TOUCH_PINCH: { + ScreenCoord currentSpan = GetYSpanFromGestureStartPoint(); + float effectiveSpan = + 1.0f + (fabsf(currentSpan.value) * ONE_TOUCH_PINCH_SPEED); + ScreenPoint currentFocus = mTouchStartPosition; + + // Invert zoom. + if (currentSpan.value < 0) { + effectiveSpan = 1.0f / effectiveSpan; + } + + PinchGestureInput pinchEvent( + PinchGestureInput::PINCHGESTURE_SCALE, PinchGestureInput::ONE_TOUCH, + mLastTouchInput.mTimeStamp, mLastTouchInput.mScreenOffset, + currentFocus, effectiveSpan, mPreviousSpan, + mLastTouchInput.modifiers); + + rv = mAsyncPanZoomController->HandleGestureEvent(pinchEvent); + mPreviousSpan = effectiveSpan; + + break; + } + + default: + NS_WARNING("Unhandled state upon touch move"); + SetState(GESTURE_NONE); + break; + } + + return rv; +} + +nsEventStatus GestureEventListener::HandleInputTouchEnd() { + // We intentionally do not pass apzc return statuses up since + // it may cause apzc stay in the touching state even after + // gestures are completed (please see Bug 1013378 for reference). + + nsEventStatus rv = nsEventStatus_eIgnore; + + switch (mState) { + case GESTURE_NONE: + // GEL doesn't have a dedicated state for PANNING handled in APZC thus + // ignore. + break; + + case GESTURE_FIRST_SINGLE_TOUCH_DOWN: { + CancelLongTapTimeoutTask(); + CancelMaxTapTimeoutTask(); + nsEventStatus tapupStatus = mAsyncPanZoomController->HandleGestureEvent( + CreateTapEvent(mLastTouchInput, TapGestureInput::TAPGESTURE_UP)); + mSingleTapSent = Some(tapupStatus != nsEventStatus_eIgnore); + SetState(GESTURE_FIRST_SINGLE_TOUCH_UP); + CreateMaxTapTimeoutTask(); + break; + } + + case GESTURE_SECOND_SINGLE_TOUCH_DOWN: { + CancelMaxTapTimeoutTask(); + MOZ_ASSERT(mSingleTapSent.isSome()); + mAsyncPanZoomController->HandleGestureEvent(CreateTapEvent( + mLastTouchInput, mSingleTapSent.value() + ? TapGestureInput::TAPGESTURE_SECOND + : TapGestureInput::TAPGESTURE_DOUBLE)); + mSingleTapSent = Nothing(); + SetState(GESTURE_NONE); + break; + } + + case GESTURE_FIRST_SINGLE_TOUCH_MAX_TAP_DOWN: + CancelLongTapTimeoutTask(); + SetState(GESTURE_NONE); + TriggerSingleTapConfirmedEvent(); + break; + + case GESTURE_LONG_TOUCH_DOWN: { + SetState(GESTURE_NONE); + mAsyncPanZoomController->HandleGestureEvent( + CreateTapEvent(mLastTouchInput, TapGestureInput::TAPGESTURE_LONG_UP)); + break; + } + + case GESTURE_MULTI_TOUCH_DOWN: + if (mTouches.Length() < 2) { + SetState(GESTURE_NONE); + } + break; + + case GESTURE_PINCH: + if (mTouches.Length() < 2) { + SetState(GESTURE_NONE); + PinchGestureInput::PinchGestureType type = + PinchGestureInput::PINCHGESTURE_END; + ScreenPoint point; + if (mTouches.Length() == 1) { + // As user still keeps one finger down the event's focus point should + // contain meaningful data. + type = PinchGestureInput::PINCHGESTURE_FINGERLIFTED; + point = mTouches[0].mScreenPoint; + } + PinchGestureInput pinchEvent(type, PinchGestureInput::TOUCH, + mLastTouchInput.mTimeStamp, + mLastTouchInput.mScreenOffset, point, 1.0f, + 1.0f, mLastTouchInput.modifiers); + mAsyncPanZoomController->HandleGestureEvent(pinchEvent); + } + + rv = nsEventStatus_eConsumeNoDefault; + + break; + + case GESTURE_ONE_TOUCH_PINCH: { + SetState(GESTURE_NONE); + PinchGestureInput pinchEvent( + PinchGestureInput::PINCHGESTURE_END, PinchGestureInput::ONE_TOUCH, + mLastTouchInput.mTimeStamp, mLastTouchInput.mScreenOffset, + ScreenPoint(), 1.0f, 1.0f, mLastTouchInput.modifiers); + mAsyncPanZoomController->HandleGestureEvent(pinchEvent); + + rv = nsEventStatus_eConsumeNoDefault; + + break; + } + + default: + NS_WARNING("Unhandled state upon touch end"); + SetState(GESTURE_NONE); + break; + } + + return rv; +} + +nsEventStatus GestureEventListener::HandleInputTouchCancel() { + mSingleTapSent = Nothing(); + SetState(GESTURE_NONE); + CancelMaxTapTimeoutTask(); + CancelLongTapTimeoutTask(); + return nsEventStatus_eIgnore; +} + +void GestureEventListener::HandleInputTimeoutLongTap() { + GEL_LOG("Running long-tap timeout task in state %d\n", mState); + + mLongTapTimeoutTask = nullptr; + + switch (mState) { + case GESTURE_FIRST_SINGLE_TOUCH_DOWN: + // just in case MaxTapTime > ContextMenuDelay cancel MaxTap timer + // and fall through + CancelMaxTapTimeoutTask(); + [[fallthrough]]; + case GESTURE_FIRST_SINGLE_TOUCH_MAX_TAP_DOWN: { + SetState(GESTURE_LONG_TOUCH_DOWN); + mAsyncPanZoomController->HandleGestureEvent( + CreateTapEvent(mLastTouchInput, TapGestureInput::TAPGESTURE_LONG)); + break; + } + default: + NS_WARNING("Unhandled state upon long tap timeout"); + SetState(GESTURE_NONE); + break; + } +} + +void GestureEventListener::HandleInputTimeoutMaxTap(bool aDuringFastFling) { + GEL_LOG("Running max-tap timeout task in state %d\n", mState); + + mMaxTapTimeoutTask = nullptr; + + if (mState == GESTURE_FIRST_SINGLE_TOUCH_DOWN) { + SetState(GESTURE_FIRST_SINGLE_TOUCH_MAX_TAP_DOWN); + } else if (mState == GESTURE_FIRST_SINGLE_TOUCH_UP || + mState == GESTURE_SECOND_SINGLE_TOUCH_DOWN) { + MOZ_ASSERT(mSingleTapSent.isSome()); + if (!aDuringFastFling && !mSingleTapSent.value()) { + TriggerSingleTapConfirmedEvent(); + } + mSingleTapSent = Nothing(); + SetState(GESTURE_NONE); + } else { + NS_WARNING("Unhandled state upon MAX_TAP timeout"); + SetState(GESTURE_NONE); + } +} + +void GestureEventListener::TriggerSingleTapConfirmedEvent() { + mAsyncPanZoomController->HandleGestureEvent( + CreateTapEvent(mLastTapInput, TapGestureInput::TAPGESTURE_CONFIRMED)); +} + +void GestureEventListener::SetState(GestureState aState) { + mState = aState; + + if (mState == GESTURE_NONE) { + mSpanChange = 0.0f; + mPreviousSpan = 0.0f; + mFocusChange = 0.0f; + } else if (mState == GESTURE_MULTI_TOUCH_DOWN) { + mPreviousSpan = GetCurrentSpan(mLastTouchInput); + mPreviousFocus = GetCurrentFocus(mLastTouchInput); + } +} + +void GestureEventListener::CancelLongTapTimeoutTask() { + if (mState == GESTURE_SECOND_SINGLE_TOUCH_DOWN) { + // being in this state means the task has been canceled already + return; + } + + if (mLongTapTimeoutTask) { + mLongTapTimeoutTask->Cancel(); + mLongTapTimeoutTask = nullptr; + } +} + +void GestureEventListener::CreateLongTapTimeoutTask() { + RefPtr<CancelableRunnable> task = NewCancelableRunnableMethod( + "layers::GestureEventListener::HandleInputTimeoutLongTap", this, + &GestureEventListener::HandleInputTimeoutLongTap); + + mLongTapTimeoutTask = task; + + TouchBlockState* block = + mAsyncPanZoomController->GetInputQueue()->GetCurrentTouchBlock(); + MOZ_ASSERT(block); + long alreadyElapsed = + static_cast<long>(block->GetTimeSinceBlockStart().ToMilliseconds()); + long remainingDelay = + StaticPrefs::ui_click_hold_context_menus_delay() - alreadyElapsed; + mAsyncPanZoomController->PostDelayedTask(task.forget(), + std::max(0L, remainingDelay)); +} + +void GestureEventListener::CancelMaxTapTimeoutTask() { + if (mState == GESTURE_FIRST_SINGLE_TOUCH_MAX_TAP_DOWN) { + // being in this state means the timer has just been triggered + return; + } + + if (mMaxTapTimeoutTask) { + mMaxTapTimeoutTask->Cancel(); + mMaxTapTimeoutTask = nullptr; + } +} + +void GestureEventListener::CreateMaxTapTimeoutTask() { + mLastTapInput = mLastTouchInput; + + TouchBlockState* block = + mAsyncPanZoomController->GetInputQueue()->GetCurrentTouchBlock(); + MOZ_ASSERT(block); + RefPtr<CancelableRunnable> task = NewCancelableRunnableMethod<bool>( + "layers::GestureEventListener::HandleInputTimeoutMaxTap", this, + &GestureEventListener::HandleInputTimeoutMaxTap, + block->IsDuringFastFling()); + + mMaxTapTimeoutTask = task; + + long alreadyElapsed = + static_cast<long>(block->GetTimeSinceBlockStart().ToMilliseconds()); + long remainingDelay = StaticPrefs::apz_max_tap_time() - alreadyElapsed; + mAsyncPanZoomController->PostDelayedTask(task.forget(), + std::max(0L, remainingDelay)); +} + +} // namespace layers +} // namespace mozilla |