angular-fabric-js
Version:
This library was generated with [Angular CLI](https://github.com/angular/angular-cli) version 9.0.7.
590 lines (584 loc) • 20.2 kB
JavaScript
import { __decorate } from 'tslib';
import { ViewChild, Component, NgModule } from '@angular/core';
import { fabric } from 'fabric';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { ColorPickerModule } from 'ngx-color-picker';
let FabricjsEditorComponent = class FabricjsEditorComponent {
constructor() {
this.props = {
canvasFill: '#ffffff',
canvasImage: '',
id: null,
opacity: null,
fill: null,
fontSize: null,
lineHeight: null,
charSpacing: null,
fontWeight: null,
fontStyle: null,
textAlign: null,
fontFamily: null,
TextDecoration: ''
};
this.url = '';
this.size = {
width: 500,
height: 300
};
this.globalEditor = false;
this.textEditor = false;
this.imageEditor = false;
this.figureEditor = false;
}
ngAfterViewInit() {
// setup front side canvas
this.canvas = new fabric.Canvas(this.htmlCanvas.nativeElement, {
hoverCursor: 'pointer',
selection: true,
selectionBorderColor: 'blue',
isDrawingMode: true
});
this.canvas.on({
'object:moving': (e) => { },
'object:modified': (e) => { },
'object:selected': (e) => {
const selectedObject = e.target;
this.selected = selectedObject;
selectedObject.hasRotatingPoint = true;
selectedObject.transparentCorners = false;
selectedObject.borderColor = 'blue';
selectedObject.cornerColor = 'green';
selectedObject.cornerSize = 6;
selectedObject.cornerStyle = 'circle';
selectedObject.padding = 10;
this.resetPanels();
if (selectedObject.type !== 'group' && selectedObject) {
this.getId();
this.getOpacity();
switch (selectedObject.type) {
case 'rect':
case 'circle':
case 'triangle':
this.figureEditor = true;
this.getFill();
break;
case 'i-text':
this.textEditor = true;
this.getLineHeight();
this.getCharSpacing();
this.getBold();
this.getFill();
this.getTextDecoration();
this.getTextAlign();
this.getFontFamily();
break;
case 'image':
break;
}
}
},
'selection:cleared': (e) => {
this.selected = null;
this.resetPanels();
}
});
this.canvas.setWidth(this.size.width);
this.canvas.setHeight(this.size.height);
// get references to the html canvas element & its context
this.canvas.on('mouse:down', (e) => {
const canvasElement = document.getElementById('canvas');
});
}
/*------------------------Block elements------------------------*/
// Block "Size"
changeSize() {
this.canvas.setWidth(this.size.width);
this.canvas.setHeight(this.size.height);
}
// Block "Add text"
addText() {
if (this.textString) {
const text = new fabric.IText(this.textString, {
left: 10,
top: 10,
fontFamily: 'helvetica',
angle: 0,
fill: '#000000',
scaleX: 0.5,
scaleY: 0.5,
fontWeight: '',
hasRotatingPoint: true
});
this.extend(text, this.randomId());
this.canvas.add(text);
this.selectItemAfterAdded(text);
this.textString = '';
}
}
// Block "Add images"
getImgPolaroid(event) {
const el = event.target;
fabric.loadSVGFromURL(el.src, (objects, options) => {
const image = fabric.util.groupSVGElements(objects, options);
image.set({
left: 10,
top: 10,
angle: 0,
padding: 10,
cornerSize: 10,
hasRotatingPoint: true,
});
this.extend(image, this.randomId());
this.canvas.add(image);
this.selectItemAfterAdded(image);
});
}
// Block "Upload Image"
addImageOnCanvas(url) {
if (url) {
fabric.Image.fromURL(url, (image) => {
image.set({
left: 10,
top: 10,
angle: 0,
padding: 10,
cornerSize: 10,
hasRotatingPoint: true
});
image.scaleToWidth(200);
image.scaleToHeight(200);
this.extend(image, this.randomId());
this.canvas.add(image);
this.selectItemAfterAdded(image);
});
}
}
readUrl(event) {
if (event.target.files && event.target.files[0]) {
const reader = new FileReader();
reader.onload = (readerEvent) => {
this.url = readerEvent.target.result;
};
reader.readAsDataURL(event.target.files[0]);
}
}
removeWhite(url) {
this.url = '';
}
// Block "Add figure"
addFigure(figure) {
let add;
switch (figure) {
case 'rectangle':
add = new fabric.Rect({
width: 200, height: 100, left: 10, top: 10, angle: 0,
fill: '#3f51b5'
});
break;
case 'square':
add = new fabric.Rect({
width: 100, height: 100, left: 10, top: 10, angle: 0,
fill: '#4caf50'
});
break;
case 'triangle':
add = new fabric.Triangle({
width: 100, height: 100, left: 10, top: 10, fill: '#2196f3'
});
break;
case 'circle':
add = new fabric.Circle({
radius: 50, left: 10, top: 10, fill: '#ff5722'
});
break;
}
this.extend(add, this.randomId());
this.canvas.add(add);
this.selectItemAfterAdded(add);
}
/*Canvas*/
cleanSelect() {
this.canvas.discardActiveObject().renderAll();
}
selectItemAfterAdded(obj) {
this.canvas.discardActiveObject().renderAll();
this.canvas.setActiveObject(obj);
}
setCanvasFill() {
if (!this.props.canvasImage) {
this.canvas.backgroundColor = this.props.canvasFill;
this.canvas.renderAll();
}
}
extend(obj, id) {
obj.toObject = ((toObject) => {
return function () {
return fabric.util.object.extend(toObject.call(this), {
id
});
};
})(obj.toObject);
}
setCanvasImage() {
const self = this;
if (this.props.canvasImage) {
this.canvas.setBackgroundImage(this.props.canvasImage, this.canvas.renderAll.bind(this.canvas), {
// width: this.size.width,
// height: this.size.height,
originX: 'left',
originY: 'top',
crossOrigin: 'anonymous'
});
}
}
randomId() {
return Math.floor(Math.random() * 999999) + 1;
}
/*------------------------Global actions for element------------------------*/
getActiveStyle(styleName, object) {
object = object || this.canvas.getActiveObject();
if (!object) {
return '';
}
if (object.getSelectionStyles && object.isEditing) {
return (object.getSelectionStyles()[styleName] || '');
}
else {
return (object[styleName] || '');
}
}
setActiveStyle(styleName, value, object) {
object = object || this.canvas.getActiveObject();
if (!object) {
return;
}
if (object.setSelectionStyles && object.isEditing) {
const style = {};
style[styleName] = value;
if (typeof value === 'string') {
if (value.includes('underline')) {
object.setSelectionStyles({ underline: true });
}
else {
object.setSelectionStyles({ underline: false });
}
if (value.includes('overline')) {
object.setSelectionStyles({ overline: true });
}
else {
object.setSelectionStyles({ overline: false });
}
if (value.includes('line-through')) {
object.setSelectionStyles({ linethrough: true });
}
else {
object.setSelectionStyles({ linethrough: false });
}
}
object.setSelectionStyles(style);
object.setCoords();
}
else {
if (typeof value === 'string') {
if (value.includes('underline')) {
object.set('underline', true);
}
else {
object.set('underline', false);
}
if (value.includes('overline')) {
object.set('overline', true);
}
else {
object.set('overline', false);
}
if (value.includes('line-through')) {
object.set('linethrough', true);
}
else {
object.set('linethrough', false);
}
}
object.set(styleName, value);
}
object.setCoords();
this.canvas.renderAll();
}
getActiveProp(name) {
const object = this.canvas.getActiveObject();
if (!object) {
return '';
}
return object[name] || '';
}
setActiveProp(name, value) {
const object = this.canvas.getActiveObject();
if (!object) {
return;
}
object.set(name, value).setCoords();
this.canvas.renderAll();
}
clone() {
const activeObject = this.canvas.getActiveObject();
const activeGroup = this.canvas.getActiveObjects();
if (activeObject) {
let clone;
switch (activeObject.type) {
case 'rect':
clone = new fabric.Rect(activeObject.toObject());
break;
case 'circle':
clone = new fabric.Circle(activeObject.toObject());
break;
case 'triangle':
clone = new fabric.Triangle(activeObject.toObject());
break;
case 'i-text':
clone = new fabric.IText('', activeObject.toObject());
break;
case 'image':
clone = fabric.util.object.clone(activeObject);
break;
}
if (clone) {
clone.set({ left: 10, top: 10 });
this.canvas.add(clone);
this.selectItemAfterAdded(clone);
}
}
}
getId() {
this.props.id = this.canvas.getActiveObject().toObject().id;
}
setId() {
const val = this.props.id;
const complete = this.canvas.getActiveObject().toObject();
console.log(complete);
this.canvas.getActiveObject().toObject = () => {
complete.id = val;
return complete;
};
}
getOpacity() {
this.props.opacity = this.getActiveStyle('opacity', null) * 100;
}
setOpacity() {
this.setActiveStyle('opacity', parseInt(this.props.opacity, 10) / 100, null);
}
getFill() {
this.props.fill = this.getActiveStyle('fill', null);
}
setFill() {
this.setActiveStyle('fill', this.props.fill, null);
}
getLineHeight() {
this.props.lineHeight = this.getActiveStyle('lineHeight', null);
}
setLineHeight() {
this.setActiveStyle('lineHeight', parseFloat(this.props.lineHeight), null);
}
getCharSpacing() {
this.props.charSpacing = this.getActiveStyle('charSpacing', null);
}
setCharSpacing() {
this.setActiveStyle('charSpacing', this.props.charSpacing, null);
}
getFontSize() {
this.props.fontSize = this.getActiveStyle('fontSize', null);
}
setFontSize() {
this.setActiveStyle('fontSize', parseInt(this.props.fontSize, 10), null);
}
getBold() {
this.props.fontWeight = this.getActiveStyle('fontWeight', null);
}
setBold() {
this.props.fontWeight = !this.props.fontWeight;
this.setActiveStyle('fontWeight', this.props.fontWeight ? 'bold' : '', null);
}
setFontStyle() {
this.props.fontStyle = !this.props.fontStyle;
if (this.props.fontStyle) {
this.setActiveStyle('fontStyle', 'italic', null);
}
else {
this.setActiveStyle('fontStyle', 'normal', null);
}
}
getTextDecoration() {
this.props.TextDecoration = this.getActiveStyle('textDecoration', null);
}
setTextDecoration(value) {
let iclass = this.props.TextDecoration;
if (iclass.includes(value)) {
iclass = iclass.replace(RegExp(value, 'g'), '');
}
else {
iclass += ` ${value}`;
}
this.props.TextDecoration = iclass;
this.setActiveStyle('textDecoration', this.props.TextDecoration, null);
}
hasTextDecoration(value) {
return this.props.TextDecoration.includes(value);
}
getTextAlign() {
this.props.textAlign = this.getActiveProp('textAlign');
}
setTextAlign(value) {
this.props.textAlign = value;
this.setActiveProp('textAlign', this.props.textAlign);
}
getFontFamily() {
this.props.fontFamily = this.getActiveProp('fontFamily');
}
setFontFamily() {
this.setActiveProp('fontFamily', this.props.fontFamily);
}
/*System*/
removeSelected() {
const activeObject = this.canvas.getActiveObject();
const activeGroup = this.canvas.getActiveObjects();
if (activeObject) {
this.canvas.remove(activeObject);
// this.textString = '';
}
else if (activeGroup) {
this.canvas.discardActiveObject();
const self = this;
activeGroup.forEach((object) => {
self.canvas.remove(object);
});
}
}
bringToFront() {
const activeObject = this.canvas.getActiveObject();
const activeGroup = this.canvas.getActiveObjects();
if (activeObject) {
activeObject.bringToFront();
activeObject.opacity = 1;
}
else if (activeGroup) {
this.canvas.discardActiveObject();
activeGroup.forEach((object) => {
object.bringToFront();
});
}
}
sendToBack() {
const activeObject = this.canvas.getActiveObject();
const activeGroup = this.canvas.getActiveObjects();
if (activeObject) {
this.canvas.sendToBack(activeObject);
activeObject.sendToBack();
activeObject.opacity = 1;
}
else if (activeGroup) {
this.canvas.discardActiveObject();
activeGroup.forEach((object) => {
object.sendToBack();
});
}
}
confirmClear() {
if (confirm('Are you sure?')) {
this.canvas.clear();
}
}
rasterize() {
const image = new Image();
image.src = this.canvas.toDataURL({ format: 'png' });
const w = window.open('');
w.document.write(image.outerHTML);
this.downLoadImage();
}
downLoadImage() {
const c = this.canvas.toDataURL({ format: 'png' });
const downloadLink = document.createElement('a');
document.body.appendChild(downloadLink);
downloadLink.href = c;
downloadLink.target = '_self';
downloadLink.download = Date.now() + '.png';
downloadLink.click();
}
rasterizeSVG() {
const w = window.open('');
w.document.write(this.canvas.toSVG());
this.downLoadSVG();
return 'data:image/svg+xml;utf8,' + encodeURIComponent(this.canvas.toSVG());
}
downLoadSVG() {
const c = 'data:image/svg+xml;utf8,' + encodeURIComponent(this.canvas.toSVG());
const downloadLink = document.createElement('a');
document.body.appendChild(downloadLink);
downloadLink.href = c;
downloadLink.target = '_self';
downloadLink.download = Date.now() + '.svg';
downloadLink.click();
}
saveCanvasToJSON() {
const json = JSON.stringify(this.canvas);
localStorage.setItem('Kanvas', json);
console.log('json');
console.log(json);
}
loadCanvasFromJSON() {
const CANVAS = localStorage.getItem('Kanvas');
console.log('CANVAS');
console.log(CANVAS);
// and load everything from the same json
this.canvas.loadFromJSON(CANVAS, () => {
console.log('CANVAS untar');
console.log(CANVAS);
// making sure to render canvas at the end
this.canvas.renderAll();
// and checking if object's "name" is preserved
console.log('this.canvas.item(0).name');
console.log(this.canvas);
});
}
rasterizeJSON() {
this.json = JSON.stringify(this.canvas, null, 2);
}
resetPanels() {
this.textEditor = false;
this.imageEditor = false;
this.figureEditor = false;
}
drawingMode() {
this.canvas.isDrawingMode = !this.canvas.isDrawingMode;
}
};
__decorate([
ViewChild('htmlCanvas')
], FabricjsEditorComponent.prototype, "htmlCanvas", void 0);
FabricjsEditorComponent = __decorate([
Component({
selector: 'angular-editor-fabric-js',
template: "<canvas id=\"canvas\" #htmlCanvas></canvas>\r\n",
styles: ["#canvas{border:2px dashed #ccc}"]
})
], FabricjsEditorComponent);
let FabricjsEditorModule = class FabricjsEditorModule {
};
FabricjsEditorModule = __decorate([
NgModule({
declarations: [FabricjsEditorComponent],
imports: [
BrowserModule,
FormsModule,
ColorPickerModule
],
exports: [FabricjsEditorComponent]
})
], FabricjsEditorModule);
/*
* Public API Surface of angular-editor-fabric-js
*/
/**
* Generated bundle index. Do not edit.
*/
export { FabricjsEditorComponent, FabricjsEditorModule };
//# sourceMappingURL=angular-fabric-js.js.map