ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
92 lines • 11.9 kB
JavaScript
/**
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
*/
import { Injectable, RendererFactory2 } from '@angular/core';
import { Subject } from 'rxjs';
import { filter, finalize, map } from 'rxjs/operators';
import { getEventPosition, isTouchEvent } from 'ng-zorro-antd/core/util';
import * as i0 from "@angular/core";
function getPagePosition(event) {
const e = getEventPosition(event);
return {
x: e.pageX,
y: e.pageY
};
}
/**
* This module provide a global dragging service to other components.
*/
export class NzDragService {
constructor(rendererFactory2) {
this.draggingThreshold = 5;
this.currentDraggingSequence = null;
this.currentStartingPoint = null;
this.handleRegistry = new Set();
this.renderer = rendererFactory2.createRenderer(null, null);
}
requestDraggingSequence(event) {
if (!this.handleRegistry.size) {
this.registerDraggingHandler(isTouchEvent(event));
}
// Complete last dragging sequence if a new target is dragged.
if (this.currentDraggingSequence) {
this.currentDraggingSequence.complete();
}
this.currentStartingPoint = getPagePosition(event);
this.currentDraggingSequence = new Subject();
return this.currentDraggingSequence.pipe(map((e) => {
return {
x: e.pageX - this.currentStartingPoint.x,
y: e.pageY - this.currentStartingPoint.y
};
}), filter((e) => Math.abs(e.x) > this.draggingThreshold || Math.abs(e.y) > this.draggingThreshold), finalize(() => this.teardownDraggingSequence()));
}
registerDraggingHandler(isTouch) {
if (isTouch) {
this.handleRegistry.add({
teardown: this.renderer.listen('document', 'touchmove', (e) => {
if (this.currentDraggingSequence) {
this.currentDraggingSequence.next(e.touches[0] || e.changedTouches[0]);
}
})
});
this.handleRegistry.add({
teardown: this.renderer.listen('document', 'touchend', () => {
if (this.currentDraggingSequence) {
this.currentDraggingSequence.complete();
}
})
});
}
else {
this.handleRegistry.add({
teardown: this.renderer.listen('document', 'mousemove', e => {
if (this.currentDraggingSequence) {
this.currentDraggingSequence.next(e);
}
})
});
this.handleRegistry.add({
teardown: this.renderer.listen('document', 'mouseup', () => {
if (this.currentDraggingSequence) {
this.currentDraggingSequence.complete();
}
})
});
}
}
teardownDraggingSequence() {
this.currentDraggingSequence = null;
}
}
NzDragService.ɵprov = i0.ɵɵdefineInjectable({ factory: function NzDragService_Factory() { return new NzDragService(i0.ɵɵinject(i0.RendererFactory2)); }, token: NzDragService, providedIn: "root" });
NzDragService.decorators = [
{ type: Injectable, args: [{
providedIn: 'root'
},] }
];
NzDragService.ctorParameters = () => [
{ type: RendererFactory2 }
];
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this.currentStartingPoint!.x,\n          y: e.pageY - this.currentStartingPoint!.y\n        };\n      }),\n      filter((e: Delta) => Math.abs(e.x) > this.draggingThreshold || Math.abs(e.y) > this.draggingThreshold),\n      finalize(() => this.teardownDraggingSequence())\n    );\n  }\n\n  private registerDraggingHandler(isTouch: boolean): void {\n    if (isTouch) {\n      this.handleRegistry.add({\n        teardown: this.renderer.listen('document', 'touchmove', (e: TouchEvent) => {\n          if (this.currentDraggingSequence) {\n            this.currentDraggingSequence.next(e.touches[0] || e.changedTouches[0]);\n          }\n        })\n      });\n      this.handleRegistry.add({\n        teardown: this.renderer.listen('document', 'touchend', () => {\n          if (this.currentDraggingSequence) {\n            this.currentDraggingSequence.complete();\n          }\n        })\n      });\n    } else {\n      this.handleRegistry.add({\n        teardown: this.renderer.listen('document', 'mousemove', e => {\n          if (this.currentDraggingSequence) {\n            this.currentDraggingSequence.next(e);\n          }\n        })\n      });\n      this.handleRegistry.add({\n        teardown: this.renderer.listen('document', 'mouseup', () => {\n          if (this.currentDraggingSequence) {\n            this.currentDraggingSequence.complete();\n          }\n        })\n      });\n    }\n  }\n\n  private teardownDraggingSequence(): void {\n    this.currentDraggingSequence = null;\n  }\n}\n"]}