cropper & imageservice

This commit is contained in:
2024-03-23 22:35:47 +01:00
parent d5210d3df4
commit a2c613c38f
11 changed files with 651 additions and 49 deletions

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<!-- CROPPER WRAPPER -->
<div class="cropper-wrapper">
<!-- LOADING -->
<div class="loading-block" *ngIf="isLoading">
<div class="spinner"></div>
</div>
<!-- LOAD ERROR -->
<div class="alert alert-warning" *ngIf="loadError">{{ loadImageErrorText }}</div>
<!-- CROPPER -->
<div class="cropper">
<img #image alt="image" [src]="imageUrl" (load)="imageLoaded($event)" (error)="imageLoadError($event)" />
</div>
</div>

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:host {
display: block
}
.cropper img {
max-width: 100%;
max-height: 100%;
height: auto;
}
.cropper-wrapper {
position: relative;
min-height: 80px
}
.cropper-wrapper .loading-block {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%
}
.cropper-wrapper .loading-block .spinner {
width: 31px;
height: 31px;
margin: 0 auto;
border: 2px solid rgba(97, 100, 193, .98);
border-radius: 50%;
border-left-color: transparent;
border-right-color: transparent;
-webkit-animation: cssload-spin 425ms infinite linear;
position: absolute;
top: calc(50% - 15px);
left: calc(50% - 15px);
animation: cssload-spin 425ms infinite linear
}
@-webkit-keyframes cssload-spin {
to {
-webkit-transform: rotate(360deg);
transform: rotate(360deg)
}
}
@keyframes cssload-spin {
to {
-webkit-transform: rotate(360deg);
transform: rotate(360deg)
}
}
/*!
* Cropper.js v1.4.1
* https://fengyuanchen.github.io/cropperjs
*
* Copyright 2015-present Chen Fengyuan
* Released under the MIT license
*
* Date: 2018-07-15T09:54:43.167Z
*/
.cropper-container {
direction: ltr;
font-size: 0;
line-height: 0;
position: relative;
-ms-touch-action: none;
touch-action: none;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
.cropper-container img {
display: block;
height: 100%;
image-orientation: 0deg;
max-height: none !important;
max-width: none !important;
min-height: 0 !important;
min-width: 0 !important;
width: 100%;
}
.cropper-wrap-box,
.cropper-canvas,
.cropper-drag-box,
.cropper-crop-box,
.cropper-modal {
bottom: 0;
left: 0;
position: absolute;
right: 0;
top: 0;
}
.cropper-wrap-box,
.cropper-canvas {
overflow: hidden;
}
.cropper-drag-box {
background-color: #fff;
opacity: 0;
}
.cropper-modal {
background-color: #000;
opacity: .5;
}
.cropper-view-box {
display: block;
height: 100%;
outline-color: rgba(51, 153, 255, 0.75);
outline: 1px solid #39f;
overflow: hidden;
width: 100%;
}
.cropper-dashed {
border: 0 dashed #eee;
display: block;
opacity: .5;
position: absolute;
}
.cropper-dashed.dashed-h {
border-bottom-width: 1px;
border-top-width: 1px;
height: calc(100% / 3);
left: 0;
top: calc(100% / 3);
width: 100%;
}
.cropper-dashed.dashed-v {
border-left-width: 1px;
border-right-width: 1px;
height: 100%;
left: calc(100% / 3);
top: 0;
width: calc(100% / 3);
}
.cropper-center {
display: block;
height: 0;
left: 50%;
opacity: .75;
position: absolute;
top: 50%;
width: 0;
}
.cropper-center:before,
.cropper-center:after {
background-color: #eee;
content: ' ';
display: block;
position: absolute;
}
.cropper-center:before {
height: 1px;
left: -3px;
top: 0;
width: 7px;
}
.cropper-center:after {
height: 7px;
left: 0;
top: -3px;
width: 1px;
}
.cropper-face,
.cropper-line,
.cropper-point {
display: block;
height: 100%;
opacity: .1;
position: absolute;
width: 100%;
}
.cropper-face {
background-color: #fff;
left: 0;
top: 0;
}
.cropper-line {
background-color: #39f;
}
.cropper-line.line-e {
cursor: ew-resize;
right: -3px;
top: 0;
width: 5px;
}
.cropper-line.line-n {
cursor: ns-resize;
height: 5px;
left: 0;
top: -3px;
}
.cropper-line.line-w {
cursor: ew-resize;
left: -3px;
top: 0;
width: 5px;
}
.cropper-line.line-s {
bottom: -3px;
cursor: ns-resize;
height: 5px;
left: 0;
}
.cropper-point {
background-color: #39f;
height: 5px;
opacity: .75;
width: 5px;
}
.cropper-point.point-e {
cursor: ew-resize;
margin-top: -3px;
right: -3px;
top: 50%;
}
.cropper-point.point-n {
cursor: ns-resize;
left: 50%;
margin-left: -3px;
top: -3px;
}
.cropper-point.point-w {
cursor: ew-resize;
left: -3px;
margin-top: -3px;
top: 50%;
}
.cropper-point.point-s {
bottom: -3px;
cursor: s-resize;
left: 50%;
margin-left: -3px;
}
.cropper-point.point-ne {
cursor: nesw-resize;
right: -3px;
top: -3px;
}
.cropper-point.point-nw {
cursor: nwse-resize;
left: -3px;
top: -3px;
}
.cropper-point.point-sw {
bottom: -3px;
cursor: nesw-resize;
left: -3px;
}
.cropper-point.point-se {
bottom: -3px;
cursor: nwse-resize;
height: 20px;
opacity: 1;
right: -3px;
width: 20px;
}
@media (min-width: 768px) {
.cropper-point.point-se {
height: 15px;
width: 15px;
}
}
@media (min-width: 992px) {
.cropper-point.point-se {
height: 10px;
width: 10px;
}
}
@media (min-width: 1200px) {
.cropper-point.point-se {
height: 5px;
opacity: .75;
width: 5px;
}
}
.cropper-point.point-se:before {
background-color: #39f;
bottom: -50%;
content: ' ';
display: block;
height: 200%;
opacity: 0;
position: absolute;
right: -50%;
width: 200%;
}
.cropper-invisible {
opacity: 0;
}
.cropper-bg {
background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQAQMAAAAlPW0iAAAAA3NCSVQICAjb4U/gAAAABlBMVEXMzMz////TjRV2AAAACXBIWXMAAArrAAAK6wGCiw1aAAAAHHRFWHRTb2Z0d2FyZQBBZG9iZSBGaXJld29ya3MgQ1M26LyyjAAAABFJREFUCJlj+M/AgBVhF/0PAH6/D/HkDxOGAAAAAElFTkSuQmCC');
}
.cropper-hide {
display: block;
height: 0;
position: absolute;
width: 0;
}
.cropper-hidden {
display: none !important;
}
.cropper-move {
cursor: move;
}
.cropper-crop {
cursor: crosshair;
}
.cropper-disabled .cropper-drag-box,
.cropper-disabled .cropper-face,
.cropper-disabled .cropper-line,
.cropper-disabled .cropper-point {
cursor: not-allowed;
}

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import { CommonModule } from "@angular/common";
import {
Component,
OnInit,
ViewEncapsulation,
ElementRef,
ViewChild,
Input,
EventEmitter,
Output,
OnDestroy,
} from "@angular/core";
import { FormsModule } from "@angular/forms";
import { BrowserModule } from "@angular/platform-browser";
import Cropper from "cropperjs";
export interface ImageCropperSetting {
width: number;
height: number;
}
export interface ImageCropperResult {
imageData: Cropper.ImageData;
cropData: Cropper.CropBoxData;
blob?: Blob;
dataUrl?: string;
}
@Component({
selector: 'app-cropper',
standalone: true,
imports: [CommonModule, FormsModule],
templateUrl: './cropper.component.html',
styleUrl: './cropper.component.scss'
})
export class SCropperComponent implements OnInit, OnDestroy {
@ViewChild("image", { static: true }) image: ElementRef;
@Input() imageUrl: any;
@Input() settings: ImageCropperSetting;
@Input() cropbox: Cropper.CropBoxData;
@Input() loadImageErrorText: string;
@Input() cropperOptions: any = {};
@Output() export = new EventEmitter<ImageCropperResult>();
@Output() ready = new EventEmitter();
public isLoading: boolean = true;
public cropper: Cropper;
public imageElement: HTMLImageElement;
public loadError: any;
constructor() {}
ngOnInit() {}
ngOnDestroy() {
if (this.cropper) {
this.cropper.destroy();
this.cropper = null;
}
}
/**
* Image loaded
* @param ev
*/
imageLoaded(ev: Event) {
//
// Unset load error state
this.loadError = false;
//
// Setup image element
const image = ev.target as HTMLImageElement;
this.imageElement = image;
//
// Add crossOrigin?
if (this.cropperOptions.checkCrossOrigin)
image.crossOrigin = "anonymous";
//
// Image on ready event
image.addEventListener("ready", () => {
//
// Emit ready
this.ready.emit(true);
//
// Unset loading state
this.isLoading = false;
//
// Validate cropbox existance
if (this.cropbox) {
//
// Set cropbox data
this.cropper.setCropBoxData(this.cropbox);
}
});
//
// Setup aspect ratio according to settings
let aspectRatio = NaN;
this.settings={width:300,height:100}
if (this.settings) {
const { width, height } = this.settings;
aspectRatio = width / height;
}
//
// Set crop options
// extend default with custom config
this.cropperOptions = {
...{
aspectRatio,
checkCrossOrigin: true,
},
...this.cropperOptions,
};
//
// Set cropperjs
if (this.cropper) {
this.cropper.destroy();
this.cropper = undefined;
}
this.cropper = new Cropper(image, this.cropperOptions);
}
/**
* Image load error
* @param event
*/
imageLoadError(event: any) {
//
// Set load error state
this.loadError = true;
//
// Unset loading state
this.isLoading = false;
}
/**
* Export canvas
* @param base64
*/
exportCanvas(base64?: any) {
//
// Get and set image, crop and canvas data
const imageData = this.cropper.getImageData();
const cropData = this.cropper.getCropBoxData();
const canvas = this.cropper.getCroppedCanvas();
const data = { imageData, cropData };
//
// Create promise to resolve canvas data
const promise = new Promise((resolve) => {
//
// Validate base64
if (base64) {
//
// Resolve promise with dataUrl
return resolve({
dataUrl: canvas.toDataURL("image/png"),
});
}
canvas.toBlob((blob) => resolve({ blob }));
});
//
// Emit export data when promise is ready
promise.then((res: any) => {
this.export.emit({ ...data, ...res });
});
}
}