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64 lines
2.6 KiB
Plaintext
64 lines
2.6 KiB
Plaintext
"use strict";
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var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports["default"] = void 0;
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var _react = require("react");
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var _useLatest = _interopRequireDefault(require("../useLatest"));
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var _useMount = _interopRequireDefault(require("../useMount"));
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var _utils = require("../utils");
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var _domTarget = require("../utils/domTarget");
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var _useEffectWithTarget = _interopRequireDefault(require("../utils/useEffectWithTarget"));
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var useDrag = function useDrag(data, target, options) {
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if (options === void 0) {
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options = {};
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}
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var optionsRef = (0, _useLatest["default"])(options);
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var dataRef = (0, _useLatest["default"])(data);
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var imageElementRef = (0, _react.useRef)(undefined);
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var dragImage = optionsRef.current.dragImage;
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(0, _useMount["default"])(function () {
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if (dragImage === null || dragImage === void 0 ? void 0 : dragImage.image) {
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var image = dragImage.image;
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if ((0, _utils.isString)(image)) {
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var imageElement = new Image();
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imageElement.src = image;
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imageElementRef.current = imageElement;
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} else {
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imageElementRef.current = image;
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}
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}
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});
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(0, _useEffectWithTarget["default"])(function () {
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var targetElement = (0, _domTarget.getTargetElement)(target);
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if (!(targetElement === null || targetElement === void 0 ? void 0 : targetElement.addEventListener)) {
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return;
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}
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var onDragStart = function onDragStart(event) {
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var _a, _b;
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(_b = (_a = optionsRef.current).onDragStart) === null || _b === void 0 ? void 0 : _b.call(_a, event);
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event.dataTransfer.setData('custom', JSON.stringify(dataRef.current));
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if ((dragImage === null || dragImage === void 0 ? void 0 : dragImage.image) && imageElementRef.current) {
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var _c = dragImage.offsetX,
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offsetX = _c === void 0 ? 0 : _c,
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_d = dragImage.offsetY,
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offsetY = _d === void 0 ? 0 : _d;
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event.dataTransfer.setDragImage(imageElementRef.current, offsetX, offsetY);
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}
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};
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var onDragEnd = function onDragEnd(event) {
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var _a, _b;
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(_b = (_a = optionsRef.current).onDragEnd) === null || _b === void 0 ? void 0 : _b.call(_a, event);
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};
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targetElement.setAttribute('draggable', 'true');
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targetElement.addEventListener('dragstart', onDragStart);
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targetElement.addEventListener('dragend', onDragEnd);
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return function () {
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targetElement.removeEventListener('dragstart', onDragStart);
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targetElement.removeEventListener('dragend', onDragEnd);
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};
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}, [], target);
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};
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var _default = exports["default"] = useDrag; |