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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 | 94x 94x 94x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 3x 1x 1x 1x 1x | import {
AfterViewInit,
ChangeDetectorRef,
Directive,
ElementRef,
HostBinding,
HostListener,
Input,
NgZone,
OnDestroy
} from '@angular/core';
import { defer } from 'lodash-es';
import { ConfigService } from '../service/config.service';
import { relativeX, relativeY } from '../util/math';
@Directive({
selector: '[appResizeHandle]',
})
export class ResizeHandleDirective implements AfterViewInit, OnDestroy {
@HostBinding('style.cursor') cursor = 'auto';
@Input()
hitArea = 24;
@Input()
appResizeHandle?: boolean | string = true;
@Input()
child?: HTMLElement;
@Input()
initChild = false;
@HostBinding('class.resize-dragging')
dragging = false;
x = 0;
y = 0;
width = 0;
height = 0;
resizeObserver?: ResizeObserver;
constructor(
private config: ConfigService,
private el: ElementRef,
private zone: NgZone,
private cd: ChangeDetectorRef,
) { }
get resizeCursor() {
return this.config.mobile ? 'row-resize' : 'se-resize';
}
@HostBinding('class.resize-handle')
get enabled() {
return this.appResizeHandle !== 'false' && this.appResizeHandle !== false;
}
ngAfterViewInit() {
Iif (!this.enabled) return;
this.resizeObserver = window.ResizeObserver && new ResizeObserver(() => this.shrinkContainer()) || undefined;
Iif (this.child) {
if (this.initChild) {
this.child.style.width = this.el.nativeElement.style.width || (this.config.mobile ? 'min(100%, 100vw - 16px)' : 'min(100%, 80vw)');
this.child.style.height = this.el.nativeElement.style.height || '80vh';
}
this.resizeObserver?.observe(this.child);
}
}
ngOnDestroy() {
this.resizeObserver?.disconnect();
}
shrinkContainer() {
if (!this.child) return;
this.el.nativeElement.style.width = this.child.style.width;
this.el.nativeElement.style.height = this.child.style.height;
}
@HostListener('fullscreenchange')
onFullscreenChange() {
this.cd.markForCheck();
}
@HostListener('pointerdown', ['$event'])
onPointerDown(event: PointerEvent) {
if (!this.enabled) return;
if (event.button) return;
if (this.hit(event)) {
this.dragging = true;
this.cursor = 'grabbing';
this.x = event.clientX;
this.y = event.clientY;
this.width = this.el.nativeElement.offsetWidth;
this.height = this.el.nativeElement.offsetHeight;
event.preventDefault();
event.stopPropagation();
event.stopImmediatePropagation();
}
}
@HostListener('window:pointermove', ['$event'])
onPointerMove(event: PointerEvent) {
if (!this.enabled) return;
if (this.dragging) {
this.zone.run(() => {
const dx = event.clientX - this.x;
const dy = event.clientY - this.y;
this.setWidth((this.width + dx) + 'px');
this.setHeight((this.height + dy) + 'px');
event.preventDefault();
event.stopPropagation();
event.stopImmediatePropagation();
});
} else {
const cursor = this.hit(event) ? this.resizeCursor : 'auto';
if (this.cursor !== cursor) {
this.zone.run(() => this.cursor = cursor);
}
}
}
@HostListener('window:pointerup', ['$event'])
onPointerUp(event: PointerEvent) {
if (!this.enabled) return;
if (this.dragging) {
this.cursor = this.hit(event) ? this.resizeCursor : 'auto';
event.preventDefault();
event.stopPropagation();
event.stopImmediatePropagation();
defer(() => this.dragging = false);
}
}
private hit(event: PointerEvent) {
const x = this.el.nativeElement.offsetWidth - relativeX(event.clientX, this.el.nativeElement);
const y = this.el.nativeElement.offsetHeight - relativeY(event.clientY, this.el.nativeElement);
return x + y < this.hitArea;
}
private setWidth(width: string) {
this.el.nativeElement.style.width = width;
if (this.child) this.child.style.width = width;
}
private setHeight(height: string) {
this.el.nativeElement.style.height = height;
if (this.child) this.child.style.height = height;
}
}
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