36 lines
1.0 KiB
JavaScript
36 lines
1.0 KiB
JavaScript
const MIN_DISTANCE = 10;
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function getDirection(x, y) {
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if (x > y && x > MIN_DISTANCE) {
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return 'horizontal';
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}
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if (y > x && y > MIN_DISTANCE) {
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return 'vertical';
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}
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return '';
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}
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export const touch = Behavior({
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methods: {
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resetTouchStatus() {
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this.direction = '';
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this.deltaX = 0;
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this.deltaY = 0;
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this.offsetX = 0;
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this.offsetY = 0;
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},
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touchStart(event) {
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this.resetTouchStatus();
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const touch = event.touches[0];
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this.startX = touch.clientX;
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this.startY = touch.clientY;
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},
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touchMove(event) {
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const touch = event.touches[0];
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this.deltaX = touch.clientX - this.startX;
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this.deltaY = touch.clientY - this.startY;
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this.offsetX = Math.abs(this.deltaX);
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this.offsetY = Math.abs(this.deltaY);
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this.direction = this.direction || getDirection(this.offsetX, this.offsetY);
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}
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}
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});
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