72 lines
9.0 KiB
JavaScript
72 lines
9.0 KiB
JavaScript
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import { CUSTOM_MIME_TYPE, DROP_EFFECTS, filterEffects, getWellKnownMimeType, JSON_MIME_TYPE, MSIE_MIME_TYPE, } from './dnd-utils';
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const _dndState = {
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isDragging: false,
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dropEffect: 'none',
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effectAllowed: 'all',
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type: undefined,
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};
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export function startDrag(event, effectAllowed, type) {
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_dndState.isDragging = true;
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_dndState.dropEffect = 'none';
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_dndState.effectAllowed = effectAllowed;
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_dndState.type = type;
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if (event.dataTransfer) {
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event.dataTransfer.effectAllowed = effectAllowed;
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}
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}
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export function endDrag() {
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_dndState.isDragging = false;
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_dndState.dropEffect = undefined;
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_dndState.effectAllowed = undefined;
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_dndState.type = undefined;
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}
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export function setDropEffect(event, dropEffect) {
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if (_dndState.isDragging === true) {
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_dndState.dropEffect = dropEffect;
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}
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if (event.dataTransfer) {
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event.dataTransfer.dropEffect = dropEffect;
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}
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}
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export function getDropEffect(event, effectAllowed) {
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const dataTransferEffectAllowed = event.dataTransfer
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? event.dataTransfer.effectAllowed
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: 'uninitialized';
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let effects = filterEffects(DROP_EFFECTS, dataTransferEffectAllowed);
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if (_dndState.isDragging === true) {
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effects = filterEffects(effects, _dndState.effectAllowed);
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}
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if (effectAllowed) {
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effects = filterEffects(effects, effectAllowed);
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}
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// MacOS automatically filters dataTransfer.effectAllowed depending on the modifier keys,
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// therefore the following modifier keys will only affect other operating systems.
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if (effects.length === 0) {
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return 'none';
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}
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if (event.ctrlKey && effects.indexOf('copy') !== -1) {
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return 'copy';
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}
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if (event.altKey && effects.indexOf('link') !== -1) {
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return 'link';
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}
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return effects[0];
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}
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export function getDndType(event) {
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if (_dndState.isDragging === true) {
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return _dndState.type;
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}
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const mimeType = getWellKnownMimeType(event);
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if (mimeType === null) {
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return undefined;
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}
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if (mimeType === MSIE_MIME_TYPE || mimeType === JSON_MIME_TYPE) {
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return undefined;
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}
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return mimeType.substr(CUSTOM_MIME_TYPE.length + 1) || undefined;
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}
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export function isExternalDrag() {
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return _dndState.isDragging === false;
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}
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export const dndState = _dndState;
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//# sourceMappingURL=data:application/json;base64,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