mirror of
https://github.com/mozilla/gecko-dev.git
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9bd1260501
We do this analogously to how PanGestureInput does it except that the delta's that we compute mLineOrPageDeltaY from are computed by us instead of provided to us. mLineOrPageDeltaY being non-zero is what EventStateManager::DispatchLegacyMouseScrollEvents uses to decide to send legacy mouse events, so we need to populate it to get those legacy events to send. This fix is Windows only on purpose as pinches on macOS don't seem to send wheel events (Windows sends ctrl+wheel). When Linux gets implemented it will need to be determined what to do. Differential Revision: https://phabricator.services.mozilla.com/D86495
840 lines
28 KiB
C++
840 lines
28 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "InputData.h"
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#include "mozilla/dom/MouseEventBinding.h"
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#include "mozilla/dom/Touch.h"
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#include "mozilla/dom/WheelEventBinding.h"
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#include "mozilla/TextEvents.h"
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#include "nsContentUtils.h"
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#include "nsDebug.h"
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#include "nsThreadUtils.h"
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#include "mozilla/MouseEvents.h"
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#include "mozilla/TouchEvents.h"
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#include "UnitTransforms.h"
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namespace mozilla {
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using namespace dom;
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InputData::~InputData() = default;
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InputData::InputData(InputType aInputType)
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: mInputType(aInputType),
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mTime(0),
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mFocusSequenceNumber(0),
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mLayersId{0},
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modifiers(0) {}
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InputData::InputData(InputType aInputType, uint32_t aTime, TimeStamp aTimeStamp,
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Modifiers aModifiers)
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: mInputType(aInputType),
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mTime(aTime),
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mTimeStamp(aTimeStamp),
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mFocusSequenceNumber(0),
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mLayersId{0},
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modifiers(aModifiers) {}
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SingleTouchData::SingleTouchData(int32_t aIdentifier,
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ScreenIntPoint aScreenPoint,
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ScreenSize aRadius, float aRotationAngle,
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float aForce)
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: mIdentifier(aIdentifier),
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mScreenPoint(aScreenPoint),
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mRadius(aRadius),
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mRotationAngle(aRotationAngle),
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mForce(aForce) {}
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SingleTouchData::SingleTouchData(int32_t aIdentifier,
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ParentLayerPoint aLocalScreenPoint,
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ScreenSize aRadius, float aRotationAngle,
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float aForce)
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: mIdentifier(aIdentifier),
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mLocalScreenPoint(aLocalScreenPoint),
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mRadius(aRadius),
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mRotationAngle(aRotationAngle),
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mForce(aForce) {}
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SingleTouchData::SingleTouchData()
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: mIdentifier(0), mRotationAngle(0.0), mForce(0.0) {}
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already_AddRefed<Touch> SingleTouchData::ToNewDOMTouch() const {
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MOZ_ASSERT(NS_IsMainThread(),
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"Can only create dom::Touch instances on main thread");
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RefPtr<Touch> touch =
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new Touch(mIdentifier,
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LayoutDeviceIntPoint::Truncate(mScreenPoint.x, mScreenPoint.y),
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LayoutDeviceIntPoint::Truncate(mRadius.width, mRadius.height),
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mRotationAngle, mForce);
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return touch.forget();
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}
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MultiTouchInput::MultiTouchInput(MultiTouchType aType, uint32_t aTime,
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TimeStamp aTimeStamp, Modifiers aModifiers)
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: InputData(MULTITOUCH_INPUT, aTime, aTimeStamp, aModifiers),
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mType(aType),
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mHandledByAPZ(false) {}
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MultiTouchInput::MultiTouchInput()
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: InputData(MULTITOUCH_INPUT),
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mType(MULTITOUCH_START),
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mHandledByAPZ(false) {}
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MultiTouchInput::MultiTouchInput(const MultiTouchInput& aOther)
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: InputData(MULTITOUCH_INPUT, aOther.mTime, aOther.mTimeStamp,
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aOther.modifiers),
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mType(aOther.mType),
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mScreenOffset(aOther.mScreenOffset),
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mHandledByAPZ(aOther.mHandledByAPZ) {
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mTouches.AppendElements(aOther.mTouches);
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}
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MultiTouchInput::MultiTouchInput(const WidgetTouchEvent& aTouchEvent)
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: InputData(MULTITOUCH_INPUT, aTouchEvent.mTime, aTouchEvent.mTimeStamp,
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aTouchEvent.mModifiers),
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mHandledByAPZ(aTouchEvent.mFlags.mHandledByAPZ) {
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MOZ_ASSERT(NS_IsMainThread(),
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"Can only copy from WidgetTouchEvent on main thread");
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switch (aTouchEvent.mMessage) {
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case eTouchStart:
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mType = MULTITOUCH_START;
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break;
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case eTouchMove:
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mType = MULTITOUCH_MOVE;
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break;
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case eTouchEnd:
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mType = MULTITOUCH_END;
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break;
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case eTouchCancel:
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mType = MULTITOUCH_CANCEL;
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break;
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default:
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MOZ_ASSERT_UNREACHABLE("Did not assign a type to a MultiTouchInput");
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break;
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}
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mScreenOffset = ViewAs<ExternalPixel>(
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aTouchEvent.mWidget->WidgetToScreenOffset(),
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PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent);
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for (size_t i = 0; i < aTouchEvent.mTouches.Length(); i++) {
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const Touch* domTouch = aTouchEvent.mTouches[i];
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// Extract data from weird interfaces.
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int32_t identifier = domTouch->Identifier();
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int32_t radiusX = domTouch->RadiusX(CallerType::System);
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int32_t radiusY = domTouch->RadiusY(CallerType::System);
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float rotationAngle = domTouch->RotationAngle(CallerType::System);
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float force = domTouch->Force(CallerType::System);
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SingleTouchData data(
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identifier,
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ViewAs<ScreenPixel>(
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domTouch->mRefPoint,
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PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent),
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ScreenSize(radiusX, radiusY), rotationAngle, force);
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mTouches.AppendElement(data);
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}
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}
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void MultiTouchInput::Translate(const ScreenPoint& aTranslation) {
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const int32_t xTranslation = (int32_t)(aTranslation.x + 0.5f);
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const int32_t yTranslation = (int32_t)(aTranslation.y + 0.5f);
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for (auto iter = mTouches.begin(); iter != mTouches.end(); iter++) {
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iter->mScreenPoint.MoveBy(xTranslation, yTranslation);
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}
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}
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WidgetTouchEvent MultiTouchInput::ToWidgetTouchEvent(nsIWidget* aWidget) const {
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MOZ_ASSERT(NS_IsMainThread(),
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"Can only convert To WidgetTouchEvent on main thread");
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EventMessage touchEventMessage = eVoidEvent;
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switch (mType) {
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case MULTITOUCH_START:
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touchEventMessage = eTouchStart;
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break;
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case MULTITOUCH_MOVE:
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touchEventMessage = eTouchMove;
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break;
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case MULTITOUCH_END:
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touchEventMessage = eTouchEnd;
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break;
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case MULTITOUCH_CANCEL:
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touchEventMessage = eTouchCancel;
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break;
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default:
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MOZ_ASSERT_UNREACHABLE(
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"Did not assign a type to WidgetTouchEvent in MultiTouchInput");
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break;
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}
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WidgetTouchEvent event(true, touchEventMessage, aWidget);
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if (touchEventMessage == eVoidEvent) {
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return event;
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}
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event.mModifiers = this->modifiers;
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event.mTime = this->mTime;
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event.mTimeStamp = this->mTimeStamp;
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event.mFlags.mHandledByAPZ = mHandledByAPZ;
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event.mFocusSequenceNumber = mFocusSequenceNumber;
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event.mLayersId = mLayersId;
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for (size_t i = 0; i < mTouches.Length(); i++) {
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*event.mTouches.AppendElement() = mTouches[i].ToNewDOMTouch();
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}
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return event;
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}
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int32_t MultiTouchInput::IndexOfTouch(int32_t aTouchIdentifier) {
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for (size_t i = 0; i < mTouches.Length(); i++) {
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if (mTouches[i].mIdentifier == aTouchIdentifier) {
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return (int32_t)i;
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}
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}
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return -1;
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}
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bool MultiTouchInput::TransformToLocal(
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const ScreenToParentLayerMatrix4x4& aTransform) {
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for (size_t i = 0; i < mTouches.Length(); i++) {
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Maybe<ParentLayerIntPoint> point =
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UntransformBy(aTransform, mTouches[i].mScreenPoint);
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if (!point) {
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return false;
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}
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mTouches[i].mLocalScreenPoint = *point;
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}
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return true;
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}
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MouseInput::MouseInput()
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: InputData(MOUSE_INPUT),
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mType(MOUSE_NONE),
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mButtonType(NONE),
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mInputSource(0),
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mButtons(0),
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mHandledByAPZ(false) {}
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MouseInput::MouseInput(MouseType aType, ButtonType aButtonType,
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uint16_t aInputSource, int16_t aButtons,
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const ScreenPoint& aPoint, uint32_t aTime,
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TimeStamp aTimeStamp, Modifiers aModifiers)
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: InputData(MOUSE_INPUT, aTime, aTimeStamp, aModifiers),
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mType(aType),
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mButtonType(aButtonType),
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mInputSource(aInputSource),
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mButtons(aButtons),
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mOrigin(aPoint),
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mHandledByAPZ(false) {}
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MouseInput::MouseInput(const WidgetMouseEventBase& aMouseEvent)
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: InputData(MOUSE_INPUT, aMouseEvent.mTime, aMouseEvent.mTimeStamp,
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aMouseEvent.mModifiers),
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mType(MOUSE_NONE),
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mButtonType(NONE),
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mInputSource(aMouseEvent.mInputSource),
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mButtons(aMouseEvent.mButtons),
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mHandledByAPZ(aMouseEvent.mFlags.mHandledByAPZ) {
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MOZ_ASSERT(NS_IsMainThread(),
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"Can only copy from WidgetTouchEvent on main thread");
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mButtonType = NONE;
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switch (aMouseEvent.mButton) {
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case MouseButton::ePrimary:
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mButtonType = MouseInput::PRIMARY_BUTTON;
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break;
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case MouseButton::eMiddle:
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mButtonType = MouseInput::MIDDLE_BUTTON;
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break;
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case MouseButton::eSecondary:
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mButtonType = MouseInput::SECONDARY_BUTTON;
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break;
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}
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switch (aMouseEvent.mMessage) {
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case eMouseMove:
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mType = MOUSE_MOVE;
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break;
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case eMouseUp:
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mType = MOUSE_UP;
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break;
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case eMouseDown:
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mType = MOUSE_DOWN;
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break;
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case eDragStart:
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mType = MOUSE_DRAG_START;
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break;
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case eDragEnd:
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mType = MOUSE_DRAG_END;
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break;
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case eMouseEnterIntoWidget:
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mType = MOUSE_WIDGET_ENTER;
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break;
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case eMouseExitFromWidget:
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mType = MOUSE_WIDGET_EXIT;
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break;
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case eMouseHitTest:
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mType = MOUSE_HITTEST;
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break;
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default:
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MOZ_ASSERT_UNREACHABLE("Mouse event type not supported");
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break;
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}
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mOrigin = ScreenPoint(ViewAs<ScreenPixel>(
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aMouseEvent.mRefPoint,
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PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent));
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}
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bool MouseInput::IsLeftButton() const { return mButtonType == PRIMARY_BUTTON; }
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bool MouseInput::TransformToLocal(
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const ScreenToParentLayerMatrix4x4& aTransform) {
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Maybe<ParentLayerPoint> point = UntransformBy(aTransform, mOrigin);
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if (!point) {
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return false;
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}
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mLocalOrigin = *point;
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return true;
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}
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WidgetMouseEvent MouseInput::ToWidgetMouseEvent(nsIWidget* aWidget) const {
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MOZ_ASSERT(NS_IsMainThread(),
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"Can only convert To WidgetTouchEvent on main thread");
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EventMessage msg = eVoidEvent;
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uint32_t clickCount = 0;
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switch (mType) {
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case MOUSE_MOVE:
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msg = eMouseMove;
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break;
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case MOUSE_UP:
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msg = eMouseUp;
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clickCount = 1;
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break;
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case MOUSE_DOWN:
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msg = eMouseDown;
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clickCount = 1;
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break;
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case MOUSE_DRAG_START:
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msg = eDragStart;
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break;
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case MOUSE_DRAG_END:
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msg = eDragEnd;
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break;
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case MOUSE_WIDGET_ENTER:
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msg = eMouseEnterIntoWidget;
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break;
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case MOUSE_WIDGET_EXIT:
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msg = eMouseExitFromWidget;
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break;
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case MOUSE_HITTEST:
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msg = eMouseHitTest;
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break;
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default:
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MOZ_ASSERT_UNREACHABLE(
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"Did not assign a type to WidgetMouseEvent in MouseInput");
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break;
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}
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WidgetMouseEvent event(true, msg, aWidget, WidgetMouseEvent::eReal,
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WidgetMouseEvent::eNormal);
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if (msg == eVoidEvent) {
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return event;
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}
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switch (mButtonType) {
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case MouseInput::PRIMARY_BUTTON:
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event.mButton = MouseButton::ePrimary;
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break;
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case MouseInput::MIDDLE_BUTTON:
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event.mButton = MouseButton::eMiddle;
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break;
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case MouseInput::SECONDARY_BUTTON:
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event.mButton = MouseButton::eSecondary;
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break;
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case MouseInput::NONE:
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default:
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break;
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}
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event.mButtons = mButtons;
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event.mModifiers = modifiers;
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event.mTime = mTime;
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event.mTimeStamp = mTimeStamp;
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event.mFlags.mHandledByAPZ = mHandledByAPZ;
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event.mRefPoint = RoundedToInt(ViewAs<LayoutDevicePixel>(
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mOrigin,
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PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent));
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event.mClickCount = clickCount;
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event.mInputSource = mInputSource;
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event.mFocusSequenceNumber = mFocusSequenceNumber;
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return event;
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}
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PanGestureInput::PanGestureInput()
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: InputData(PANGESTURE_INPUT),
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mType(PANGESTURE_MAYSTART),
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mLineOrPageDeltaX(0),
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mLineOrPageDeltaY(0),
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mUserDeltaMultiplierX(1.0),
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mUserDeltaMultiplierY(1.0),
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mHandledByAPZ(false),
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mFollowedByMomentum(false),
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mRequiresContentResponseIfCannotScrollHorizontallyInStartDirection(false),
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mOverscrollBehaviorAllowsSwipe(false),
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mSimulateMomentum(false) {}
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PanGestureInput::PanGestureInput(PanGestureType aType, uint32_t aTime,
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TimeStamp aTimeStamp,
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const ScreenPoint& aPanStartPoint,
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const ScreenPoint& aPanDisplacement,
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Modifiers aModifiers)
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: InputData(PANGESTURE_INPUT, aTime, aTimeStamp, aModifiers),
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mType(aType),
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mPanStartPoint(aPanStartPoint),
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mPanDisplacement(aPanDisplacement),
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mLineOrPageDeltaX(0),
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mLineOrPageDeltaY(0),
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mUserDeltaMultiplierX(1.0),
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mUserDeltaMultiplierY(1.0),
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mHandledByAPZ(false),
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mFollowedByMomentum(false),
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mRequiresContentResponseIfCannotScrollHorizontallyInStartDirection(false),
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mOverscrollBehaviorAllowsSwipe(false),
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mSimulateMomentum(false) {}
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bool PanGestureInput::IsMomentum() const {
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switch (mType) {
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case PanGestureInput::PANGESTURE_MOMENTUMSTART:
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case PanGestureInput::PANGESTURE_MOMENTUMPAN:
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case PanGestureInput::PANGESTURE_MOMENTUMEND:
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return true;
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default:
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return false;
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}
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}
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WidgetWheelEvent PanGestureInput::ToWidgetWheelEvent(nsIWidget* aWidget) const {
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WidgetWheelEvent wheelEvent(true, eWheel, aWidget);
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wheelEvent.mModifiers = this->modifiers;
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wheelEvent.mTime = mTime;
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wheelEvent.mTimeStamp = mTimeStamp;
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wheelEvent.mRefPoint = RoundedToInt(ViewAs<LayoutDevicePixel>(
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mPanStartPoint,
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PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent));
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wheelEvent.mButtons = 0;
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wheelEvent.mMayHaveMomentum = true; // pan inputs may have momentum
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wheelEvent.mIsMomentum = IsMomentum();
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wheelEvent.mLineOrPageDeltaX = mLineOrPageDeltaX;
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wheelEvent.mLineOrPageDeltaY = mLineOrPageDeltaY;
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wheelEvent.mDeltaX = mPanDisplacement.x;
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wheelEvent.mDeltaY = mPanDisplacement.y;
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wheelEvent.mFlags.mHandledByAPZ = mHandledByAPZ;
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wheelEvent.mFocusSequenceNumber = mFocusSequenceNumber;
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if (mDeltaType == PanGestureInput::PANDELTA_PAGE) {
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// Emulate legacy widget/gtk behavior
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wheelEvent.mDeltaMode = WheelEvent_Binding::DOM_DELTA_LINE;
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wheelEvent.mIsNoLineOrPageDelta = true;
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wheelEvent.mScrollType = WidgetWheelEvent::SCROLL_ASYNCHRONOUSELY;
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wheelEvent.mDeltaX *= 3;
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wheelEvent.mDeltaY *= 3;
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} else {
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wheelEvent.mDeltaMode = WheelEvent_Binding::DOM_DELTA_PIXEL;
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}
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return wheelEvent;
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}
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bool PanGestureInput::TransformToLocal(
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const ScreenToParentLayerMatrix4x4& aTransform) {
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Maybe<ParentLayerPoint> panStartPoint =
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UntransformBy(aTransform, mPanStartPoint);
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if (!panStartPoint) {
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return false;
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}
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mLocalPanStartPoint = *panStartPoint;
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if (mDeltaType == PanGestureInput::PANDELTA_PAGE) {
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// Skip transforming the pan displacement because we want
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// raw page proportion counts.
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mLocalPanDisplacement.x = mPanDisplacement.x;
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mLocalPanDisplacement.y = mPanDisplacement.y;
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return true;
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}
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Maybe<ParentLayerPoint> panDisplacement =
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UntransformVector(aTransform, mPanDisplacement, mPanStartPoint);
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if (!panDisplacement) {
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return false;
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}
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mLocalPanDisplacement = *panDisplacement;
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return true;
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}
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ScreenPoint PanGestureInput::UserMultipliedPanDisplacement() const {
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return ScreenPoint(mPanDisplacement.x * mUserDeltaMultiplierX,
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mPanDisplacement.y * mUserDeltaMultiplierY);
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}
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ParentLayerPoint PanGestureInput::UserMultipliedLocalPanDisplacement() const {
|
|
return ParentLayerPoint(mLocalPanDisplacement.x * mUserDeltaMultiplierX,
|
|
mLocalPanDisplacement.y * mUserDeltaMultiplierY);
|
|
}
|
|
|
|
static int32_t TakeLargestInt(gfx::Float* aFloat) {
|
|
int32_t result(*aFloat); // truncate towards zero
|
|
*aFloat -= result;
|
|
return result;
|
|
}
|
|
|
|
/* static */ gfx::IntPoint PanGestureInput::GetIntegerDeltaForEvent(
|
|
bool aIsStart, float x, float y) {
|
|
static gfx::Point sAccumulator(0.0f, 0.0f);
|
|
if (aIsStart) {
|
|
sAccumulator = gfx::Point(0.0f, 0.0f);
|
|
}
|
|
sAccumulator.x += x;
|
|
sAccumulator.y += y;
|
|
return gfx::IntPoint(TakeLargestInt(&sAccumulator.x),
|
|
TakeLargestInt(&sAccumulator.y));
|
|
}
|
|
|
|
PinchGestureInput::PinchGestureInput()
|
|
: InputData(PINCHGESTURE_INPUT),
|
|
mType(PINCHGESTURE_START),
|
|
mSource(UNKNOWN),
|
|
mHandledByAPZ(false) {}
|
|
|
|
PinchGestureInput::PinchGestureInput(
|
|
PinchGestureType aType, PinchGestureSource aSource, uint32_t aTime,
|
|
TimeStamp aTimeStamp, const ExternalPoint& aScreenOffset,
|
|
const ScreenPoint& aFocusPoint, ScreenCoord aCurrentSpan,
|
|
ScreenCoord aPreviousSpan, Modifiers aModifiers)
|
|
: InputData(PINCHGESTURE_INPUT, aTime, aTimeStamp, aModifiers),
|
|
mType(aType),
|
|
mSource(aSource),
|
|
mFocusPoint(aFocusPoint),
|
|
mScreenOffset(aScreenOffset),
|
|
mCurrentSpan(aCurrentSpan),
|
|
mPreviousSpan(aPreviousSpan),
|
|
mLineOrPageDeltaY(0),
|
|
mHandledByAPZ(false) {}
|
|
|
|
bool PinchGestureInput::TransformToLocal(
|
|
const ScreenToParentLayerMatrix4x4& aTransform) {
|
|
Maybe<ParentLayerPoint> point = UntransformBy(aTransform, mFocusPoint);
|
|
if (!point) {
|
|
return false;
|
|
}
|
|
mLocalFocusPoint = *point;
|
|
return true;
|
|
}
|
|
|
|
WidgetWheelEvent PinchGestureInput::ToWidgetWheelEvent(
|
|
nsIWidget* aWidget) const {
|
|
WidgetWheelEvent wheelEvent(true, eWheel, aWidget);
|
|
wheelEvent.mModifiers = this->modifiers | MODIFIER_CONTROL;
|
|
wheelEvent.mTime = mTime;
|
|
wheelEvent.mTimeStamp = mTimeStamp;
|
|
wheelEvent.mRefPoint = RoundedToInt(ViewAs<LayoutDevicePixel>(
|
|
mFocusPoint,
|
|
PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent));
|
|
wheelEvent.mButtons = 0;
|
|
wheelEvent.mFlags.mHandledByAPZ = mHandledByAPZ;
|
|
wheelEvent.mDeltaMode = WheelEvent_Binding::DOM_DELTA_PIXEL;
|
|
|
|
wheelEvent.mDeltaY = ComputeDeltaY(aWidget);
|
|
|
|
wheelEvent.mLineOrPageDeltaY = mLineOrPageDeltaY;
|
|
|
|
MOZ_ASSERT(mType == PINCHGESTURE_END || wheelEvent.mDeltaY != 0.0);
|
|
|
|
return wheelEvent;
|
|
}
|
|
|
|
double PinchGestureInput::ComputeDeltaY(nsIWidget* aWidget) const {
|
|
#if defined(OS_MACOSX)
|
|
// This converts the pinch gesture value to a fake wheel event that has the
|
|
// control key pressed so that pages can implement custom pinch gesture
|
|
// handling. It may seem strange that this doesn't use a wheel event with
|
|
// the deltaZ property set, but this matches Chrome's behavior as described
|
|
// at https://code.google.com/p/chromium/issues/detail?id=289887
|
|
//
|
|
// The intent of the formula below is to produce numbers similar to Chrome's
|
|
// implementation of this feature. Chrome implements deltaY using the formula
|
|
// "-100 * log(1 + [event magnification])" which is unfortunately incorrect.
|
|
// All deltas for a single pinch gesture should sum to 0 if the start and end
|
|
// of a pinch gesture end up in the same place. This doesn't happen in Chrome
|
|
// because they followed Apple's misleading documentation, which implies that
|
|
// "1 + [event magnification]" is the scale factor. The scale factor is
|
|
// instead "pow(ratio, [event magnification])" so "[event magnification]" is
|
|
// already in log space.
|
|
//
|
|
// The multiplication by the backing scale factor below counteracts the
|
|
// division by the backing scale factor in WheelEvent.
|
|
|
|
// We want to set deltaY to |-100.0 * M * GetDefaultScaleInternal()| where M
|
|
// is [event magnification] but [event magnification] is only available in the
|
|
// macOS widget code so we have to reverse engineer from mCurrentSpan and
|
|
// mPreviousSpan (which are derived from [event magnification]) to get it.
|
|
// Specifically, we know |mCurrentSpan == 100.0| and |mPreviousSpan == 100.0 *
|
|
// (1.0 - M)|. We can calculate deltaY by solving the mPreviousSpan equation
|
|
// for M in terms of mPreviousSpan and plugging that into to the formula for
|
|
// deltaY.
|
|
return (mPreviousSpan - 100.0) *
|
|
(aWidget ? aWidget->GetDefaultScaleInternal() : 1.f);
|
|
#else
|
|
// This calculation is based on what the Windows widget code does.
|
|
// Specifically, it creates a PinchGestureInput with |mCurrentSpan == 100.0 *
|
|
// currentScale| and |mPreviousSpan == 100.0 * lastScale| where currentScale
|
|
// is the scale from the current OS event and lastScale is the scale when the
|
|
// previous OS event happened. On macOS [event magnification] is a relative
|
|
// change in scale factor, ie if the scale factor changed from 1 to 1.1 it
|
|
// will be 0.1, similarly if it changed from 1 to 0.9 it will be -0.1. To
|
|
// calculate the relative scale change on Windows we would calculate |M =
|
|
// currentScale - lastScale = (mCurrentSpan-mPreviousSpan)/100| and use the
|
|
// same formula as the macOS code
|
|
// (|-100.0 * M * GetDefaultScaleInternal()|).
|
|
|
|
// XXX When we write the code for other platforms to do the same we'll need to
|
|
// make sure this calculation is reasonable.
|
|
|
|
return (mPreviousSpan - mCurrentSpan) *
|
|
(aWidget ? aWidget->GetDefaultScaleInternal() : 1.f);
|
|
#endif
|
|
}
|
|
|
|
/* static */ gfx::IntPoint PinchGestureInput::GetIntegerDeltaForEvent(
|
|
bool aIsStart, float x, float y) {
|
|
static gfx::Point sAccumulator(0.0f, 0.0f);
|
|
if (aIsStart) {
|
|
sAccumulator = gfx::Point(0.0f, 0.0f);
|
|
}
|
|
sAccumulator.x += x;
|
|
sAccumulator.y += y;
|
|
return gfx::IntPoint(TakeLargestInt(&sAccumulator.x),
|
|
TakeLargestInt(&sAccumulator.y));
|
|
}
|
|
|
|
TapGestureInput::TapGestureInput()
|
|
: InputData(TAPGESTURE_INPUT), mType(TAPGESTURE_LONG) {}
|
|
|
|
TapGestureInput::TapGestureInput(TapGestureType aType, uint32_t aTime,
|
|
TimeStamp aTimeStamp,
|
|
const ScreenIntPoint& aPoint,
|
|
Modifiers aModifiers)
|
|
: InputData(TAPGESTURE_INPUT, aTime, aTimeStamp, aModifiers),
|
|
mType(aType),
|
|
mPoint(aPoint) {}
|
|
|
|
TapGestureInput::TapGestureInput(TapGestureType aType, uint32_t aTime,
|
|
TimeStamp aTimeStamp,
|
|
const ParentLayerPoint& aLocalPoint,
|
|
Modifiers aModifiers)
|
|
: InputData(TAPGESTURE_INPUT, aTime, aTimeStamp, aModifiers),
|
|
mType(aType),
|
|
mLocalPoint(aLocalPoint) {}
|
|
|
|
bool TapGestureInput::TransformToLocal(
|
|
const ScreenToParentLayerMatrix4x4& aTransform) {
|
|
Maybe<ParentLayerIntPoint> point = UntransformBy(aTransform, mPoint);
|
|
if (!point) {
|
|
return false;
|
|
}
|
|
mLocalPoint = *point;
|
|
return true;
|
|
}
|
|
|
|
ScrollWheelInput::ScrollWheelInput()
|
|
: InputData(SCROLLWHEEL_INPUT),
|
|
mDeltaType(SCROLLDELTA_LINE),
|
|
mScrollMode(SCROLLMODE_INSTANT),
|
|
mHandledByAPZ(false),
|
|
mDeltaX(0.0),
|
|
mDeltaY(0.0),
|
|
mLineOrPageDeltaX(0),
|
|
mLineOrPageDeltaY(0),
|
|
mScrollSeriesNumber(0),
|
|
mUserDeltaMultiplierX(1.0),
|
|
mUserDeltaMultiplierY(1.0),
|
|
mMayHaveMomentum(false),
|
|
mIsMomentum(false),
|
|
mAPZAction(APZWheelAction::Scroll) {}
|
|
|
|
ScrollWheelInput::ScrollWheelInput(
|
|
uint32_t aTime, TimeStamp aTimeStamp, Modifiers aModifiers,
|
|
ScrollMode aScrollMode, ScrollDeltaType aDeltaType,
|
|
const ScreenPoint& aOrigin, double aDeltaX, double aDeltaY,
|
|
bool aAllowToOverrideSystemScrollSpeed,
|
|
WheelDeltaAdjustmentStrategy aWheelDeltaAdjustmentStrategy)
|
|
: InputData(SCROLLWHEEL_INPUT, aTime, aTimeStamp, aModifiers),
|
|
mDeltaType(aDeltaType),
|
|
mScrollMode(aScrollMode),
|
|
mOrigin(aOrigin),
|
|
mHandledByAPZ(false),
|
|
mDeltaX(aDeltaX),
|
|
mDeltaY(aDeltaY),
|
|
mLineOrPageDeltaX(0),
|
|
mLineOrPageDeltaY(0),
|
|
mScrollSeriesNumber(0),
|
|
mUserDeltaMultiplierX(1.0),
|
|
mUserDeltaMultiplierY(1.0),
|
|
mMayHaveMomentum(false),
|
|
mIsMomentum(false),
|
|
mAllowToOverrideSystemScrollSpeed(aAllowToOverrideSystemScrollSpeed),
|
|
mWheelDeltaAdjustmentStrategy(aWheelDeltaAdjustmentStrategy),
|
|
mAPZAction(APZWheelAction::Scroll) {}
|
|
|
|
ScrollWheelInput::ScrollWheelInput(const WidgetWheelEvent& aWheelEvent)
|
|
: InputData(SCROLLWHEEL_INPUT, aWheelEvent.mTime, aWheelEvent.mTimeStamp,
|
|
aWheelEvent.mModifiers),
|
|
mDeltaType(DeltaTypeForDeltaMode(aWheelEvent.mDeltaMode)),
|
|
mScrollMode(SCROLLMODE_INSTANT),
|
|
mHandledByAPZ(aWheelEvent.mFlags.mHandledByAPZ),
|
|
mDeltaX(aWheelEvent.mDeltaX),
|
|
mDeltaY(aWheelEvent.mDeltaY),
|
|
mLineOrPageDeltaX(aWheelEvent.mLineOrPageDeltaX),
|
|
mLineOrPageDeltaY(aWheelEvent.mLineOrPageDeltaY),
|
|
mScrollSeriesNumber(0),
|
|
mUserDeltaMultiplierX(1.0),
|
|
mUserDeltaMultiplierY(1.0),
|
|
mMayHaveMomentum(aWheelEvent.mMayHaveMomentum),
|
|
mIsMomentum(aWheelEvent.mIsMomentum),
|
|
mAllowToOverrideSystemScrollSpeed(
|
|
aWheelEvent.mAllowToOverrideSystemScrollSpeed),
|
|
mWheelDeltaAdjustmentStrategy(WheelDeltaAdjustmentStrategy::eNone),
|
|
mAPZAction(APZWheelAction::Scroll) {
|
|
mOrigin = ScreenPoint(ViewAs<ScreenPixel>(
|
|
aWheelEvent.mRefPoint,
|
|
PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent));
|
|
}
|
|
|
|
ScrollWheelInput::ScrollDeltaType ScrollWheelInput::DeltaTypeForDeltaMode(
|
|
uint32_t aDeltaMode) {
|
|
switch (aDeltaMode) {
|
|
case WheelEvent_Binding::DOM_DELTA_LINE:
|
|
return SCROLLDELTA_LINE;
|
|
case WheelEvent_Binding::DOM_DELTA_PAGE:
|
|
return SCROLLDELTA_PAGE;
|
|
case WheelEvent_Binding::DOM_DELTA_PIXEL:
|
|
return SCROLLDELTA_PIXEL;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
return SCROLLDELTA_LINE;
|
|
}
|
|
|
|
uint32_t ScrollWheelInput::DeltaModeForDeltaType(ScrollDeltaType aDeltaType) {
|
|
switch (aDeltaType) {
|
|
case ScrollWheelInput::SCROLLDELTA_LINE:
|
|
return WheelEvent_Binding::DOM_DELTA_LINE;
|
|
case ScrollWheelInput::SCROLLDELTA_PAGE:
|
|
return WheelEvent_Binding::DOM_DELTA_PAGE;
|
|
case ScrollWheelInput::SCROLLDELTA_PIXEL:
|
|
default:
|
|
return WheelEvent_Binding::DOM_DELTA_PIXEL;
|
|
}
|
|
}
|
|
|
|
ScrollUnit ScrollWheelInput::ScrollUnitForDeltaType(
|
|
ScrollDeltaType aDeltaType) {
|
|
switch (aDeltaType) {
|
|
case SCROLLDELTA_LINE:
|
|
return ScrollUnit::LINES;
|
|
case SCROLLDELTA_PAGE:
|
|
return ScrollUnit::PAGES;
|
|
case SCROLLDELTA_PIXEL:
|
|
return ScrollUnit::DEVICE_PIXELS;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
return ScrollUnit::LINES;
|
|
}
|
|
|
|
WidgetWheelEvent ScrollWheelInput::ToWidgetWheelEvent(
|
|
nsIWidget* aWidget) const {
|
|
WidgetWheelEvent wheelEvent(true, eWheel, aWidget);
|
|
wheelEvent.mModifiers = this->modifiers;
|
|
wheelEvent.mTime = mTime;
|
|
wheelEvent.mTimeStamp = mTimeStamp;
|
|
wheelEvent.mRefPoint = RoundedToInt(ViewAs<LayoutDevicePixel>(
|
|
mOrigin,
|
|
PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent));
|
|
wheelEvent.mButtons = 0;
|
|
wheelEvent.mDeltaMode = DeltaModeForDeltaType(mDeltaType);
|
|
wheelEvent.mMayHaveMomentum = mMayHaveMomentum;
|
|
wheelEvent.mIsMomentum = mIsMomentum;
|
|
wheelEvent.mDeltaX = mDeltaX;
|
|
wheelEvent.mDeltaY = mDeltaY;
|
|
wheelEvent.mLineOrPageDeltaX = mLineOrPageDeltaX;
|
|
wheelEvent.mLineOrPageDeltaY = mLineOrPageDeltaY;
|
|
wheelEvent.mAllowToOverrideSystemScrollSpeed =
|
|
mAllowToOverrideSystemScrollSpeed;
|
|
wheelEvent.mFlags.mHandledByAPZ = mHandledByAPZ;
|
|
wheelEvent.mFocusSequenceNumber = mFocusSequenceNumber;
|
|
return wheelEvent;
|
|
}
|
|
|
|
bool ScrollWheelInput::TransformToLocal(
|
|
const ScreenToParentLayerMatrix4x4& aTransform) {
|
|
Maybe<ParentLayerPoint> point = UntransformBy(aTransform, mOrigin);
|
|
if (!point) {
|
|
return false;
|
|
}
|
|
mLocalOrigin = *point;
|
|
return true;
|
|
}
|
|
|
|
bool ScrollWheelInput::IsCustomizedByUserPrefs() const {
|
|
return mUserDeltaMultiplierX != 1.0 || mUserDeltaMultiplierY != 1.0;
|
|
}
|
|
|
|
KeyboardInput::KeyboardInput(const WidgetKeyboardEvent& aEvent)
|
|
: InputData(KEYBOARD_INPUT, aEvent.mTime, aEvent.mTimeStamp,
|
|
aEvent.mModifiers),
|
|
mKeyCode(aEvent.mKeyCode),
|
|
mCharCode(aEvent.mCharCode),
|
|
mHandledByAPZ(false) {
|
|
switch (aEvent.mMessage) {
|
|
case eKeyPress: {
|
|
mType = KeyboardInput::KEY_PRESS;
|
|
break;
|
|
}
|
|
case eKeyUp: {
|
|
mType = KeyboardInput::KEY_UP;
|
|
break;
|
|
}
|
|
case eKeyDown: {
|
|
mType = KeyboardInput::KEY_DOWN;
|
|
break;
|
|
}
|
|
default:
|
|
mType = KeyboardInput::KEY_OTHER;
|
|
break;
|
|
}
|
|
|
|
aEvent.GetShortcutKeyCandidates(mShortcutCandidates);
|
|
}
|
|
|
|
KeyboardInput::KeyboardInput()
|
|
: InputData(KEYBOARD_INPUT),
|
|
mType(KEY_DOWN),
|
|
mKeyCode(0),
|
|
mCharCode(0),
|
|
mHandledByAPZ(false) {}
|
|
|
|
} // namespace mozilla
|