85 lines
2.3 KiB
JavaScript
85 lines
2.3 KiB
JavaScript
import GestureService from '../../services/gesture_service/gesture_service'
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/**
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* props:
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* direction: a vector that indicates the direction of the intended swipe
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* threshold: the minimum distance in pixels the swipe has moved on `direction'
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* for swipe-finished() to have a non-zero sign
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* perpendicularTolerance: see gesture_service
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*
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* Events:
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* preview-requested(offsets)
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* Emitted when the pointer has moved.
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* offsets: the offsets from the start of the swipe to the current cursor position
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*
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* swipe-canceled()
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* Emitted when the swipe has been canceled due to a pointercancel event.
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*
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* swipe-finished(sign: 0|-1|1)
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* Emitted when the swipe has finished.
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* sign: if the swipe does not meet the threshold, 0
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* if the swipe meets the threshold in the positive direction, 1
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* if the swipe meets the threshold in the negative direction, -1
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*
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* swipeless-clicked()
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* Emitted when there is a click without swipe.
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* This and swipe-finished() cannot be emitted for the same pointerup event.
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*/
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const SwipeClick = {
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props: {
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direction: {
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type: Array
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},
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threshold: {
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type: Function,
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default: () => 30
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},
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perpendicularTolerance: {
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type: Number,
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default: 1.0
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}
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},
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methods: {
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handlePointerDown (event) {
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this.$gesture.start(event)
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},
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handlePointerMove (event) {
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this.$gesture.move(event)
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},
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handlePointerUp (event) {
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this.$gesture.end(event)
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},
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handlePointerCancel (event) {
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this.$gesture.cancel(event)
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},
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handleNativeClick (event) {
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this.$gesture.click(event)
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},
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preview (offsets) {
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this.$emit('preview-requested', offsets)
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},
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end (sign) {
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this.$emit('swipe-finished', sign)
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},
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click () {
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this.$emit('swipeless-clicked')
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},
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cancel () {
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this.$emit('swipe-canceled')
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}
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},
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created () {
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this.$gesture = new GestureService.SwipeAndClickGesture({
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direction: this.direction,
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threshold: this.threshold,
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perpendicularTolerance: this.perpendicularTolerance,
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swipePreviewCallback: this.preview,
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swipeEndCallback: this.end,
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swipeCancelCallback: this.cancel,
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swipelessClickCallback: this.click
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})
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}
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}
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export default SwipeClick
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