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import Sensor from '../sensor'; import {DragStartSensorEvent} from '../events/drag.start.sensor.event'; import {DragMoveSensorEvent} from '../events/drag.move.sensor.event'; import {DragEndSensorEvent} from '../events/drag.end.sensor.event'; import {DragDropSensorEvent} from '../events/drag.drop.sensor.event'; export default class MouseSensor extends Sensor { constructor(container = [], options = {}) { super(container, options); this.mousedownTimeoutId = null; this.onMouseDown = this.onMouseDown.bind(this); this.onMouseMove = this.onMouseMove.bind(this); this.onMouseUp = this.onMouseUp.bind(this); this.onDragStart = this.onDragStart.bind(this); } enable() { this.getDocument().addEventListener('mousedown', this.onMouseDown, true); } disable() { this.getDocument().removeEventListener('mousedown', this.onMouseDown, true); } startHandleMouseUp() { this.getDocument().addEventListener('mouseup', this.onMouseUp); } stopHandleMouseUp() { this.getDocument().removeEventListener('mouseup', this.onMouseUp); } startHandleMouseMove() { this.getDocument().addEventListener('mousemove', this.onMouseMove); } stopHandleMouseMove() { this.getDocument().removeEventListener('mousemove', this.onMouseMove); } startPreventContextMenu() { this.getDocument().addEventListener('contextmenu', this.preventDefaultEventAction, true); } stopPreventContextMenu() { this.getDocument().removeEventListener('contextmenu', this.preventDefaultEventAction, true); } startPreventNativeDragAndDrop() { this.getDocument().addEventListener('dragstart', this.preventDefaultEventAction); } stopPreventNativeDragAndDrop() { this.getDocument().removeEventListener('dragstart', this.preventDefaultEventAction); } onMouseDown(event: MouseEvent) { if (!event.ctrlKey && !event.metaKey && !event.button) { this.originalDragStartEvent = event; const container = this.getContainerByChild(event.target); if (container) { const dragElement = this.getDragElementByChild(event.target); if (dragElement) { this.startHandleMouseUp(); this.startPreventNativeDragAndDrop(); this.mousedownTimeoutId = setTimeout(() => { this.onDragStart(); }, this.options.delay); } } } } onDragStart() { const sourceContainer = this.getContainerByChild( this.originalDragStartEvent.target, ); this.dragStartEvent = new DragStartSensorEvent({ clientX: this.originalDragStartEvent.clientX, clientY: this.originalDragStartEvent.clientY, originalSource: this.originalDragStartEvent.target, originalEvent: this.originalDragStartEvent, sourceContainer, }); this.emit('drag:start', this.dragStartEvent); if (this.isDragging()) { this.startPreventContextMenu(); this.startHandleMouseMove(); } } onMouseMove(originalEvent) { if (this.isDragging()) { const {clientX, clientY} = originalEvent; const over = this.getElementFromPoint(clientX, clientY); const overContainer = this.getContainerByChild(over); const {originalSource, sourceContainer} = this.dragStartEvent.data; const dragMoveEvent = new DragMoveSensorEvent({ clientX, clientY, originalSource, sourceContainer, over, overContainer, originalEvent, }); this.emit('drag:move', dragMoveEvent); } } onMouseUp(originalEvent) { clearTimeout(this.mousedownTimeoutId); this.stopHandleMouseUp(); this.stopPreventNativeDragAndDrop(); if (this.isDragging()) { const {clientX, clientY} = originalEvent; const over = this.getElementFromPoint(clientX, clientY); const overContainer = this.getContainerByChild(over); const {originalSource, sourceContainer} = this.dragStartEvent.data; const dragEndEvent = new DragEndSensorEvent({ clientX, clientY, originalSource, sourceContainer, over, overContainer, originalEvent, }); this.emit('drag:end', dragEndEvent); if (!dragEndEvent.isDefaultPrevented()) { const dropzone = this.getDropzoneByChild(over); if (dropzone) { const dragDropEvent = new DragDropSensorEvent({ clientX, clientY, originalSource, sourceContainer, over, overContainer, originalEvent, dropzone, }); this.emit('drag:drop', dragDropEvent); } } this.stopPreventContextMenu(); this.stopHandleMouseMove(); } this.originalDragStartEvent = null; } }

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