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45 lines
1.6 KiB
45 lines
1.6 KiB
import { Document } from '@antv/g';
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import { isCombo, isEdge, isNode } from '../element';
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export * from './events';
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/**
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* <zh/> 基于 Event 对象触发事件
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*
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* <en/> Trigger event based on Event object
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* @param emitter - <zh/> 事件目标 | <en/> event target
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* @param event - <zh/> 事件对象 | <en/> event object
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*/
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export function emit(emitter, event) {
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emitter.emit(event.type, event);
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}
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/**
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* <zh/> 获取事件目标元素
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*
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* <en/> Get the event target element
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* @param shape - <zh/> 事件图形 | <en/> event shape
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* @returns <zh/> 目标元素 | <en/> target element
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* @remarks
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* <zh/> 事件响应大多数情况会命中元素的内部图形，通过该方法可以获取到其所属元素
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*
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* <en/> Most of the event responses will hit the internal graphics of the element, and this method can be used to get the element to which it belongs
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*/
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export function eventTargetOf(shape) {
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if (!shape)
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return null;
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if (shape instanceof Document) {
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return { type: 'canvas', element: shape };
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}
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let element = shape;
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while (element) {
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// 此判断条件不适用于 label 和 节点分开渲染的情况
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// This condition is not applicable to the case where the label and node are rendered separately
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if (isNode(element))
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return { type: 'node', element };
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if (isEdge(element))
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return { type: 'edge', element };
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if (isCombo(element))
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return { type: 'combo', element };
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element = element.parentElement;
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}
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return null;
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}
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//# sourceMappingURL=index.js.map
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