38 lines
1.1 KiB
JavaScript
38 lines
1.1 KiB
JavaScript
import { Konva } from './Global.js';
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const Captures = new Map();
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const SUPPORT_POINTER_EVENTS = Konva._global['PointerEvent'] !== undefined;
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export function getCapturedShape(pointerId) {
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return Captures.get(pointerId);
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}
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export function createEvent(evt) {
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return {
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evt,
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pointerId: evt.pointerId,
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};
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}
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export function hasPointerCapture(pointerId, shape) {
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return Captures.get(pointerId) === shape;
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}
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export function setPointerCapture(pointerId, shape) {
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releaseCapture(pointerId);
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const stage = shape.getStage();
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if (!stage)
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return;
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Captures.set(pointerId, shape);
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if (SUPPORT_POINTER_EVENTS) {
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shape._fire('gotpointercapture', createEvent(new PointerEvent('gotpointercapture')));
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}
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}
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export function releaseCapture(pointerId, target) {
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const shape = Captures.get(pointerId);
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if (!shape)
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return;
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const stage = shape.getStage();
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if (stage && stage.content) {
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}
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Captures.delete(pointerId);
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if (SUPPORT_POINTER_EVENTS) {
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shape._fire('lostpointercapture', createEvent(new PointerEvent('lostpointercapture')));
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}
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}
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