97 lines
3.1 KiB
JavaScript
97 lines
3.1 KiB
JavaScript
import { ref, onMounted, watchEffect, onBeforeUnmount } from 'vue';
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import { addUnit } from '../../utils/dom/style.mjs';
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const useDraggable = (targetRef, dragRef, draggable, overflow) => {
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const transform = {
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offsetX: 0,
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offsetY: 0
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};
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const isDragging = ref(false);
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const adjustPosition = (moveX, moveY) => {
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if (targetRef.value) {
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const { offsetX, offsetY } = transform;
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const targetRect = targetRef.value.getBoundingClientRect();
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const targetLeft = targetRect.left;
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const targetTop = targetRect.top;
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const targetWidth = targetRect.width;
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const targetHeight = targetRect.height;
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const clientWidth = document.documentElement.clientWidth;
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const clientHeight = document.documentElement.clientHeight;
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const minLeft = -targetLeft + offsetX;
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const minTop = -targetTop + offsetY;
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const maxLeft = clientWidth - targetLeft - targetWidth + offsetX;
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const maxTop = clientHeight - targetTop - (targetHeight < clientHeight ? targetHeight : 0) + offsetY;
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if (!(overflow == null ? void 0 : overflow.value)) {
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moveX = Math.min(Math.max(moveX, minLeft), maxLeft);
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moveY = Math.min(Math.max(moveY, minTop), maxTop);
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}
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transform.offsetX = moveX;
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transform.offsetY = moveY;
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targetRef.value.style.transform = `translate(${addUnit(moveX)}, ${addUnit(moveY)})`;
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}
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};
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const onMousedown = (e) => {
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const downX = e.clientX;
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const downY = e.clientY;
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const { offsetX, offsetY } = transform;
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const onMousemove = (e2) => {
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if (!isDragging.value) {
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isDragging.value = true;
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}
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const moveX = offsetX + e2.clientX - downX;
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const moveY = offsetY + e2.clientY - downY;
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adjustPosition(moveX, moveY);
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};
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const onMouseup = () => {
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isDragging.value = false;
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document.removeEventListener("mousemove", onMousemove);
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document.removeEventListener("mouseup", onMouseup);
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};
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document.addEventListener("mousemove", onMousemove);
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document.addEventListener("mouseup", onMouseup);
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};
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const onDraggable = () => {
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if (dragRef.value && targetRef.value) {
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dragRef.value.addEventListener("mousedown", onMousedown);
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window.addEventListener("resize", updatePosition);
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}
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};
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const offDraggable = () => {
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if (dragRef.value && targetRef.value) {
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dragRef.value.removeEventListener("mousedown", onMousedown);
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window.removeEventListener("resize", updatePosition);
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}
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};
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const resetPosition = () => {
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transform.offsetX = 0;
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transform.offsetY = 0;
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if (targetRef.value) {
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targetRef.value.style.transform = "";
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}
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};
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const updatePosition = () => {
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const { offsetX, offsetY } = transform;
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adjustPosition(offsetX, offsetY);
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};
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onMounted(() => {
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watchEffect(() => {
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if (draggable.value) {
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onDraggable();
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} else {
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offDraggable();
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}
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});
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});
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onBeforeUnmount(() => {
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offDraggable();
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});
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return {
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isDragging,
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resetPosition,
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updatePosition
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};
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};
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export { useDraggable };
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//# sourceMappingURL=index.mjs.map
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