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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 | 68x 68x 68x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | import { Directive, ElementRef, HostBinding, Input, OnDestroy, OnInit } from '@angular/core';
import { autorun, IReactionDisposer } from 'mobx';
import { Ref } from '../model/ref';
import { ConfigService } from '../service/config.service';
import { Dim, height, ImageService, width } from '../service/image.service';
import { Store } from '../store/store';
@Directive({ selector: '[appImage]' })
export class ImageDirective implements OnInit, OnDestroy {
private disposers: IReactionDisposer[] = [];
@Input()
grid = false;
@Input()
ref?: Ref;
@Input('defaultWidth')
defaultWidth?: number;
@Input('defaultHeight')
defaultHeight?: number;
@HostBinding('class.loading')
loading = true;
private dim: Dim = { width: 0, height: 0 };
private resizeObserver?: ResizeObserver;
private loadingUrl = '';
constructor(
private config: ConfigService,
private store: Store,
private elRef: ElementRef,
private imgs: ImageService,
) {
this.disposers.push(autorun(() => {
Iif (this.store.eventBus.event === 'refresh') {
if (this.ref?.url && this.store.eventBus.isRef(this.ref)) {
if (this.loading && this.loadingUrl) {
this.url = this.loadingUrl;
}
}
}
}));
}
ngOnInit() {
if (this.grid) {
this.resizeObserver = window.ResizeObserver && new ResizeObserver(() => this.onResize());
this.resizeObserver?.observe(this.el);
} else {
if (this.config.mobile) {
this.el.style.width = this.defaultWidthPx || null;
this.el.style.height = this.defaultHeightPx || this.el.clientWidth + 'px';
} else {
this.el.style.width = this.defaultWidthPx || '600px';
this.el.style.height = this.defaultHeightPx || '600px';
}
}
}
ngOnDestroy() {
for (const dispose of this.disposers) dispose();
this.disposers.length = 0;
this.resizeObserver?.disconnect();
}
get el() {
return this.elRef.nativeElement;
}
get parentWidth() {
let parent = this.el.parentElement;
while (parent && !parent.offsetWidth) parent = parent.parentElement;
return parent?.offsetWidth || 0;
}
get defaultWidthPx() {
if (!this.defaultWidth) return undefined;
if (this.config.mobile && this.defaultWidth > window.innerWidth) return 'calc(100vw - 32px)'
return this.defaultWidth + 'px'
}
get defaultHeightPx() {
if (!this.defaultHeight) return undefined;
return this.defaultHeight + 'px'
}
@Input('appImage')
set url(value: string) {
this.loading = true;
this.loadingUrl = value;
this.el.style.backgroundRepeat = 'no-repeat';
this.el.style.backgroundPosition = 'center center';
this.el.style.backgroundSize = 'unset';
this.imgs.getImage(value)
.then((dim: Dim) => {
this.loading = false;
this.el.style.backgroundImage = `url('${value}')`;
this.el.style.backgroundSize = this.config.mobile ? 'cover' : 'contain';
this.dim = dim;
this.onResize();
});
}
private onResize() {
if (this.defaultWidth && this.defaultHeight) {
this.el.style.width = this.defaultWidth + 'px';
this.el.style.height = this.defaultHeight + 'px';
this.el.style.backgroundSize = '100% 100%';
return;
}
const parentWidth = this.parentWidth;
if (this.config.mobile && !this.grid && (!this.defaultWidth || this.defaultWidth >= window.innerWidth)) {
this.el.style.width = (parentWidth - 12) + 'px';
this.el.style.height = this.defaultHeightPx || height((parentWidth - 12), this.dim) + 'px';
} else if (this.grid || this.dim.width > parentWidth && (!this.defaultWidth || this.defaultWidth >= parentWidth)) {
this.el.style.width = (parentWidth - 12) + 'px';
this.el.style.height = this.defaultHeightPx || height(this.defaultWidth || (parentWidth - 12), this.dim) + 'px';
} else if (this.defaultWidth) {
this.el.style.width = this.defaultWidthPx;
this.el.style.height = this.defaultHeightPx || height(this.defaultWidth, this.dim) + 'px';
} else if (this.defaultHeight) {
this.el.style.width = width(this.defaultHeight, this.dim) + 'px';
this.el.style.height = this.defaultHeightPx;
} else {
this.el.style.width = this.dim.width + 'px';
this.el.style.height = this.dim.height + 'px';
}
}
}
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