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Lexical: Started build of image node and decoration UI
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ssddanbrown committed Jun 3, 2024
1 parent 7c504a1 commit a74e041
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Showing 5 changed files with 195 additions and 2 deletions.
174 changes: 174 additions & 0 deletions resources/js/wysiwyg/nodes/image.ts
Original file line number Diff line number Diff line change
@@ -0,0 +1,174 @@
import {
DecoratorNode,
DOMConversion,
DOMConversionMap,
DOMConversionOutput,
LexicalEditor, LexicalNode,
SerializedLexicalNode,
Spread
} from "lexical";
import type {EditorConfig} from "lexical/LexicalEditor";
import {el} from "../helpers";

export interface ImageNodeOptions {
alt?: string;
width?: number;
height?: number;
}

export type SerializedImageNode = Spread<{
src: string;
alt: string;
width: number;
height: number;
}, SerializedLexicalNode>

export class ImageNode extends DecoratorNode<HTMLElement> {
__src: string = '';
__alt: string = '';
__width: number = 0;
__height: number = 0;
// TODO - Alignment

static getType(): string {
return 'image';
}

static clone(node: ImageNode): ImageNode {
return new ImageNode(node.__src, {
alt: node.__alt,
width: node.__width,
height: node.__height,
});
}

constructor(src: string, options: ImageNodeOptions, key?: string) {
super(key);
this.__src = src;
if (options.alt) {
this.__alt = options.alt;
}
if (options.width) {
this.__width = options.width;
}
if (options.height) {
this.__height = options.height;
}
}

setAltText(altText: string): void {
const self = this.getWritable();
self.__alt = altText;
}

getAltText(): string {
const self = this.getLatest();
return self.__alt;
}

setHeight(height: number): void {
const self = this.getWritable();
self.__height = height;
}

getHeight(): number {
const self = this.getLatest();
return self.__height;
}

setWidth(width: number): void {
const self = this.getWritable();
self.__width = width;
}

getWidth(): number {
const self = this.getLatest();
return self.__width;
}

isInline(): boolean {
return true;
}

decorate(editor: LexicalEditor, config: EditorConfig): HTMLElement {
console.log('decorate!');
return el('div', {
class: 'editor-image-decorator',
}, ['decoration!!!']);
}

createDOM(_config: EditorConfig, _editor: LexicalEditor) {
const element = document.createElement('img');
element.setAttribute('src', this.__src);
element.textContent

if (this.__width) {
element.setAttribute('width', String(this.__width));
}
if (this.__height) {
element.setAttribute('height', String(this.__height));
}
if (this.__alt) {
element.setAttribute('alt', this.__alt);
}
return el('span', {class: 'editor-image-wrap'}, [
element,
]);
}

updateDOM(prevNode: unknown, dom: HTMLElement) {
// Returning false tells Lexical that this node does not need its
// DOM element replacing with a new copy from createDOM.
return false;
}

static importDOM(): DOMConversionMap|null {
return {
img(node: HTMLElement): DOMConversion|null {
return {
conversion: (element: HTMLElement): DOMConversionOutput|null => {

const src = element.getAttribute('src') || '';
const options: ImageNodeOptions = {
alt: element.getAttribute('alt') || '',
height: Number.parseInt(element.getAttribute('height') || '0'),
width: Number.parseInt(element.getAttribute('width') || '0'),
}

return {
node: new ImageNode(src, options),
};
},
priority: 3,
};
},
};
}

exportJSON(): SerializedImageNode {
return {
type: 'image',
version: 1,
src: this.__src,
alt: this.__alt,
height: this.__height,
width: this.__width
};
}

static importJSON(serializedNode: SerializedImageNode): ImageNode {
return $createImageNode(serializedNode.src, {
alt: serializedNode.alt,
width: serializedNode.width,
height: serializedNode.height,
});
}
}

export function $createImageNode(src: string, options: ImageNodeOptions = {}): ImageNode {
return new ImageNode(src, options);
}

export function $isImageNode(node: LexicalNode | null | undefined) {
return node instanceof ImageNode;
}
2 changes: 2 additions & 0 deletions resources/js/wysiwyg/nodes/index.ts
Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ import {CalloutNode} from './callout';
import {ElementNode, KlassConstructor, LexicalNode, LexicalNodeReplacement, ParagraphNode} from "lexical";
import {CustomParagraphNode} from "./custom-paragraph";
import {LinkNode} from "@lexical/link";
import {ImageNode} from "./image";

/**
* Load the nodes for lexical.
Expand All @@ -12,6 +13,7 @@ export function getNodesForPageEditor(): (KlassConstructor<typeof LexicalNode> |
CalloutNode, // Todo - Create custom
HeadingNode, // Todo - Create custom
QuoteNode, // Todo - Create custom
ImageNode,
CustomParagraphNode,
{
replace: ParagraphNode,
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1 change: 0 additions & 1 deletion resources/js/wysiwyg/ui/framework/buttons.ts
Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,6 @@ export class FormatPreviewButton extends EditorButton {
}, [this.getLabel()]);

const stylesToApply = this.getStylesFromPreview();
console.log(stylesToApply);
for (const style of Object.keys(stylesToApply)) {
preview.style.setProperty(style, stylesToApply[style]);
}
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17 changes: 17 additions & 0 deletions resources/js/wysiwyg/ui/index.ts
Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,9 @@ import {
import {getMainEditorFullToolbar} from "./toolbars";
import {EditorUIManager} from "./framework/manager";
import {link as linkFormDefinition} from "./defaults/form-definitions";
import {DecoratorListener} from "lexical/LexicalEditor";
import type {NodeKey} from "lexical/LexicalNode";
import {el} from "../helpers";

export function buildEditorUI(element: HTMLElement, editor: LexicalEditor) {
const manager = new EditorUIManager();
Expand All @@ -28,6 +31,20 @@ export function buildEditorUI(element: HTMLElement, editor: LexicalEditor) {
form: linkFormDefinition,
});

// Register decorator listener
// Maybe move to manager?
const domDecorateListener: DecoratorListener<HTMLElement> = (decorator: Record<NodeKey, HTMLElement>) => {
const keys = Object.keys(decorator);
for (const key of keys) {
const decoratedEl = editor.getElementByKey(key);
const decoratorEl = decorator[key];
if (decoratedEl) {
decoratedEl.append(decoratorEl);
}
}
}
editor.registerDecoratorListener(domDecorateListener);

// Update button states on editor selection change
editor.registerCommand(SELECTION_CHANGE_COMMAND, () => {
const selection = $getSelection();
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3 changes: 2 additions & 1 deletion resources/views/pages/parts/wysiwyg-editor.blade.php
Original file line number Diff line number Diff line change
Expand Up @@ -9,13 +9,14 @@ class="">
<div class="editor-container">
<div refs="wysiwyg-editor@edit-area" contenteditable="true">
<p id="Content!">Some <strong>content</strong> here</p>
<p>Content with image in, before text. <img src="https://bookstack.local/bookstack/uploads/images/gallery/2022-03/scaled-1680-/cats-image-2400x1000-2.jpg" width="200" alt="Sleepy meow"> After text.</p>
<p>This has a <a href="https://example.com" target="_blank" title="Link to example">link</a> in it</p>
<h2>List below this h2 header</h2>
<ul>
<li>Hello</li>
</ul>

<p class="callout danger">
<p class="callout info">
Hello there, this is an info callout
</p>
</div>
Expand Down

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