sgauthier
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96 lines
3.0 KiB
JavaScript
96 lines
3.0 KiB
JavaScript
import { invariant } from '@react-dnd/invariant';
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let isCallingCanDrag = false;
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let isCallingIsDragging = false;
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export class DragSourceMonitorImpl {
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internalMonitor;
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sourceId = null;
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constructor(manager) {
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this.internalMonitor = manager.getMonitor();
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}
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receiveHandlerId(sourceId) {
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this.sourceId = sourceId;
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}
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getHandlerId() {
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return this.sourceId;
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}
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canDrag() {
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invariant(!isCallingCanDrag, 'You may not call monitor.canDrag() inside your canDrag() implementation. ' +
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'Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source-monitor');
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try {
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isCallingCanDrag = true;
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return this.internalMonitor.canDragSource(this.sourceId);
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}
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finally {
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isCallingCanDrag = false;
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}
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}
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isDragging() {
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if (!this.sourceId) {
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return false;
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}
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invariant(!isCallingIsDragging, 'You may not call monitor.isDragging() inside your isDragging() implementation. ' +
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'Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source-monitor');
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try {
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isCallingIsDragging = true;
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return this.internalMonitor.isDraggingSource(this.sourceId);
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}
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finally {
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isCallingIsDragging = false;
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}
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}
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subscribeToStateChange(listener, options) {
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return this.internalMonitor.subscribeToStateChange(listener, options);
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}
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isDraggingSource(sourceId) {
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return this.internalMonitor.isDraggingSource(sourceId);
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}
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isOverTarget(targetId, options) {
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return this.internalMonitor.isOverTarget(targetId, options);
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}
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getTargetIds() {
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return this.internalMonitor.getTargetIds();
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}
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isSourcePublic() {
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return this.internalMonitor.isSourcePublic();
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}
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getSourceId() {
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return this.internalMonitor.getSourceId();
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}
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subscribeToOffsetChange(listener) {
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return this.internalMonitor.subscribeToOffsetChange(listener);
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}
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canDragSource(sourceId) {
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return this.internalMonitor.canDragSource(sourceId);
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}
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canDropOnTarget(targetId) {
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return this.internalMonitor.canDropOnTarget(targetId);
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}
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getItemType() {
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return this.internalMonitor.getItemType();
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}
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getItem() {
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return this.internalMonitor.getItem();
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}
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getDropResult() {
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return this.internalMonitor.getDropResult();
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}
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didDrop() {
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return this.internalMonitor.didDrop();
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}
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getInitialClientOffset() {
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return this.internalMonitor.getInitialClientOffset();
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}
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getInitialSourceClientOffset() {
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return this.internalMonitor.getInitialSourceClientOffset();
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}
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getSourceClientOffset() {
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return this.internalMonitor.getSourceClientOffset();
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}
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getClientOffset() {
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return this.internalMonitor.getClientOffset();
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}
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getDifferenceFromInitialOffset() {
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return this.internalMonitor.getDifferenceFromInitialOffset();
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}
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}
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