fix(wysiwyg):Improve Wysiwyg editor

This commit is contained in:
Juergen Kunz
2025-06-24 13:41:12 +00:00
parent 08a4c361fa
commit 4b2178cedd
13 changed files with 581 additions and 349 deletions

View File

@ -1,18 +1,17 @@
import {
customElement,
property,
html,
static as html,
DeesElement,
type TemplateResult,
cssManager,
css,
query,
unsafeStatic,
static as staticHtml,
} from '@design.estate/dees-element';
import { type IBlock } from './wysiwyg.types.js';
import { WysiwygBlocks } from './wysiwyg.blocks.js';
import { WysiwygSelection } from './wysiwyg.selection.js';
declare global {
interface HTMLElementTagNameMap {
@ -271,10 +270,71 @@ export class DeesWysiwygBlock extends DeesElement {
// Mark that content has been initialized
this.contentInitialized = true;
// For code blocks, the actual contenteditable block is nested
const editableBlock = this.block.type === 'code'
? this.shadowRoot?.querySelector('.block.code') as HTMLDivElement
: this.blockElement;
// Ensure the block element maintains its content
if (this.blockElement) {
this.blockElement.setAttribute('data-block-id', this.block.id);
this.blockElement.setAttribute('data-block-type', this.block.type);
if (editableBlock) {
editableBlock.setAttribute('data-block-id', this.block.id);
editableBlock.setAttribute('data-block-type', this.block.type);
// Set up all event handlers manually to avoid Lit re-renders
editableBlock.addEventListener('input', (e) => {
this.logCursorPosition('input');
this.handlers?.onInput?.(e as InputEvent);
});
editableBlock.addEventListener('keydown', (e) => {
this.handlers?.onKeyDown?.(e);
});
editableBlock.addEventListener('keyup', (e) => {
this.logCursorPosition('keyup', e);
});
editableBlock.addEventListener('focus', () => {
this.handlers?.onFocus?.();
});
editableBlock.addEventListener('blur', () => {
this.handlers?.onBlur?.();
});
editableBlock.addEventListener('compositionstart', () => {
this.handlers?.onCompositionStart?.();
});
editableBlock.addEventListener('compositionend', () => {
this.handlers?.onCompositionEnd?.();
});
editableBlock.addEventListener('mouseup', (e) => {
this.logCursorPosition('mouseup');
this.handleMouseUp(e);
this.handlers?.onMouseUp?.(e);
});
editableBlock.addEventListener('click', () => {
this.logCursorPosition('click');
});
// Set initial content if needed
if (this.block.content) {
if (this.block.type === 'code') {
editableBlock.textContent = this.block.content;
} else if (this.block.type === 'list') {
editableBlock.innerHTML = WysiwygBlocks.renderListContent(this.block.content, this.block.metadata);
} else {
editableBlock.innerHTML = this.block.content;
}
}
}
// Update blockElement reference for code blocks
if (this.block.type === 'code') {
this.blockElement = editableBlock;
}
}
@ -298,41 +358,20 @@ export class DeesWysiwygBlock extends DeesElement {
class="block code ${this.isSelected ? 'selected' : ''}"
contenteditable="true"
data-block-type="${this.block.type}"
@input="${this.handlers?.onInput}"
@keydown="${this.handlers?.onKeyDown}"
@focus="${this.handlers?.onFocus}"
@blur="${this.handlers?.onBlur}"
@compositionstart="${this.handlers?.onCompositionStart}"
@compositionend="${this.handlers?.onCompositionEnd}"
@mouseup="${(e: MouseEvent) => {
this.handleMouseUp(e);
this.handlers?.onMouseUp?.(e);
}}"
.textContent="${this.block.content || ''}"
></div>
</div>
`;
}
const placeholder = this.getPlaceholder();
const initialContent = this.getInitialContent();
return staticHtml`
// Return static HTML without event bindings
return html`
<div
class="block ${this.block.type} ${this.isSelected ? 'selected' : ''}"
contenteditable="true"
data-placeholder="${placeholder}"
@input="${this.handlers?.onInput}"
@keydown="${this.handlers?.onKeyDown}"
@focus="${this.handlers?.onFocus}"
@blur="${this.handlers?.onBlur}"
@compositionstart="${this.handlers?.onCompositionStart}"
@compositionend="${this.handlers?.onCompositionEnd}"
@mouseup="${(e: MouseEvent) => {
this.handleMouseUp(e);
this.handlers?.onMouseUp?.(e);
}}"
>${unsafeStatic(initialContent)}</div>
></div>
`;
}
@ -353,12 +392,6 @@ export class DeesWysiwygBlock extends DeesElement {
}
}
private getInitialContent(): string {
if (this.block.type === 'list') {
return WysiwygBlocks.renderListContent(this.block.content, this.block.metadata);
}
return this.block.content || '';
}
public focus(): void {
if (!this.blockElement) return;
@ -391,34 +424,13 @@ export class DeesWysiwygBlock extends DeesElement {
// Set cursor position after focus is established
const setCursor = () => {
const selection = window.getSelection();
if (!selection) return;
if (position === 'start') {
this.setCursorToStart();
} else if (position === 'end') {
this.setCursorToEnd();
} else if (typeof position === 'number') {
// Set cursor at specific position
const range = document.createRange();
const textNode = this.getFirstTextNode(this.blockElement);
if (textNode) {
const length = textNode.textContent?.length || 0;
const safePosition = Math.min(position, length);
range.setStart(textNode, safePosition);
range.collapse(true);
selection.removeAllRanges();
selection.addRange(range);
} else if (this.blockElement.childNodes.length === 0) {
// Empty block - create a text node
const emptyText = document.createTextNode('');
this.blockElement.appendChild(emptyText);
range.setStart(emptyText, 0);
range.collapse(true);
selection.removeAllRanges();
selection.addRange(range);
}
// Use the new selection utility to set cursor position
WysiwygSelection.setCursorPosition(this.blockElement, position);
}
};
@ -501,47 +513,121 @@ export class DeesWysiwygBlock extends DeesElement {
public getSplitContent(): { before: string; after: string } | null {
if (!this.blockElement) return null;
const selection = window.getSelection();
if (!selection || selection.rangeCount === 0) {
// Get the full content first
const fullContent = this.getContent();
console.log('getSplitContent: Full content:', {
content: fullContent,
length: fullContent.length,
blockType: this.block.type
});
// Get selection info using the new utility that handles Shadow DOM
const selectionInfo = WysiwygSelection.getSelectionInfo(this.shadowRoot!);
if (!selectionInfo) {
console.log('getSplitContent: No selection, returning all content as before');
return {
before: this.getContent(),
before: fullContent,
after: ''
};
}
const range = selection.getRangeAt(0);
// Check if selection is within this block
if (!this.blockElement.contains(range.commonAncestorContainer)) {
if (!WysiwygSelection.isSelectionInElement(this.blockElement, this.shadowRoot!)) {
console.log('getSplitContent: Selection not in this block');
return null;
}
// Clone the range to extract content before and after cursor
const beforeRange = range.cloneRange();
beforeRange.selectNodeContents(this.blockElement);
beforeRange.setEnd(range.startContainer, range.startOffset);
// Get cursor position as a number
const cursorPosition = WysiwygSelection.getCursorPositionInElement(this.blockElement, this.shadowRoot!);
console.log('getSplitContent: Cursor position:', {
cursorPosition,
contentLength: fullContent.length,
startContainer: selectionInfo.startContainer,
startOffset: selectionInfo.startOffset,
collapsed: selectionInfo.collapsed
});
const afterRange = range.cloneRange();
afterRange.selectNodeContents(this.blockElement);
afterRange.setStart(range.endContainer, range.endOffset);
// Handle special cases for different block types
if (this.block.type === 'code') {
// For code blocks, split text content
const fullText = this.blockElement.textContent || '';
const textNode = this.getFirstTextNode(this.blockElement);
if (textNode && selectionInfo.startContainer === textNode) {
const before = fullText.substring(0, selectionInfo.startOffset);
const after = fullText.substring(selectionInfo.startOffset);
console.log('getSplitContent: Code block split result:', {
cursorPosition,
contentLength: fullText.length,
beforeContent: before,
beforeLength: before.length,
afterContent: after,
afterLength: after.length,
startOffset: selectionInfo.startOffset
});
return { before, after };
}
}
// Extract content
const beforeFragment = beforeRange.cloneContents();
const afterFragment = afterRange.cloneContents();
// Convert to HTML
const tempDiv = document.createElement('div');
tempDiv.appendChild(beforeFragment);
const beforeHtml = tempDiv.innerHTML;
tempDiv.innerHTML = '';
tempDiv.appendChild(afterFragment);
const afterHtml = tempDiv.innerHTML;
return {
before: beforeHtml,
after: afterHtml
};
// For other block types, extract HTML content
try {
// Create a temporary range to get content before cursor
const beforeRange = document.createRange();
beforeRange.selectNodeContents(this.blockElement);
beforeRange.setEnd(selectionInfo.startContainer, selectionInfo.startOffset);
// Create a temporary range to get content after cursor
const afterRange = document.createRange();
afterRange.selectNodeContents(this.blockElement);
afterRange.setStart(selectionInfo.startContainer, selectionInfo.startOffset);
// Clone HTML content (not extract, to avoid modifying the DOM)
const beforeContents = beforeRange.cloneContents();
const afterContents = afterRange.cloneContents();
// Convert to HTML strings
const tempDiv = document.createElement('div');
tempDiv.appendChild(beforeContents);
const beforeHtml = tempDiv.innerHTML;
tempDiv.innerHTML = '';
tempDiv.appendChild(afterContents);
const afterHtml = tempDiv.innerHTML;
const result = {
before: beforeHtml,
after: afterHtml
};
console.log('getSplitContent: Split result:', {
cursorPosition,
contentLength: fullContent.length,
beforeContent: result.before,
beforeLength: result.before.length,
afterContent: result.after,
afterLength: result.after.length
});
return result;
} catch (error) {
console.error('Error splitting content:', error);
// Fallback: return all content as "before"
const fallbackResult = {
before: this.getContent(),
after: ''
};
console.log('getSplitContent: Fallback result:', {
beforeContent: fallbackResult.before,
beforeLength: fallbackResult.before.length,
afterContent: fallbackResult.after,
afterLength: fallbackResult.after.length
});
return fallbackResult;
}
}
private handleMouseUp(_e: MouseEvent): void {
@ -570,4 +656,117 @@ export class DeesWysiwygBlock extends DeesElement {
}
}, 10);
}
/**
* Logs cursor position for debugging
*/
private logCursorPosition(eventType: string, event?: KeyboardEvent): void {
console.log(`[CursorLog] Event triggered: ${eventType} in block ${this.block.id}`);
// Get the actual active element considering shadow DOM
const activeElement = this.shadowRoot?.activeElement;
console.log(`[CursorLog] Active element:`, activeElement, 'Block element:', this.blockElement);
// Only log if this block is focused
if (activeElement !== this.blockElement) {
console.log(`[CursorLog] Block not focused, skipping detailed logging`);
return;
}
// Get selection info using the new utility that handles Shadow DOM
const selectionInfo = WysiwygSelection.getSelectionInfo(this.shadowRoot!);
if (!selectionInfo) {
console.log(`[${eventType}] No selection available`);
return;
}
const isInThisBlock = WysiwygSelection.isSelectionInElement(this.blockElement, this.shadowRoot!);
if (!isInThisBlock) {
return;
}
// Get cursor position details
const details: any = {
event: eventType,
blockId: this.block.id,
blockType: this.block.type,
collapsed: selectionInfo.collapsed,
startContainer: {
nodeType: selectionInfo.startContainer.nodeType,
nodeName: selectionInfo.startContainer.nodeName,
textContent: selectionInfo.startContainer.textContent?.substring(0, 50) + '...',
},
startOffset: selectionInfo.startOffset,
};
// Add key info if it's a keyboard event
if (event) {
details.key = event.key;
details.shiftKey = event.shiftKey;
details.ctrlKey = event.ctrlKey;
details.metaKey = event.metaKey;
}
// Try to get the actual cursor position in the text
if (selectionInfo.startContainer.nodeType === Node.TEXT_NODE) {
const textNode = selectionInfo.startContainer as Text;
const textBefore = textNode.textContent?.substring(0, selectionInfo.startOffset) || '';
const textAfter = textNode.textContent?.substring(selectionInfo.startOffset) || '';
details.cursorPosition = {
textBefore: textBefore.slice(-20), // Last 20 chars before cursor
textAfter: textAfter.slice(0, 20), // First 20 chars after cursor
totalLength: textNode.textContent?.length || 0,
offset: selectionInfo.startOffset
};
}
// Check if we're at boundaries
details.boundaries = {
atStart: this.isCursorAtStart(selectionInfo),
atEnd: this.isCursorAtEnd(selectionInfo)
};
console.log('Cursor Position:', details);
}
/**
* Check if cursor is at the start of the block
*/
private isCursorAtStart(selectionInfo: { startContainer: Node; startOffset: number; collapsed: boolean }): boolean {
if (!selectionInfo.collapsed || selectionInfo.startOffset !== 0) return false;
const firstNode = this.getFirstTextNode(this.blockElement);
return !firstNode || selectionInfo.startContainer === firstNode || selectionInfo.startContainer === this.blockElement;
}
/**
* Check if cursor is at the end of the block
*/
private isCursorAtEnd(selectionInfo: { endContainer: Node; endOffset: number; collapsed: boolean }): boolean {
if (!selectionInfo.collapsed) return false;
const lastNode = this.getLastTextNode(this.blockElement);
if (!lastNode) return true;
return selectionInfo.endContainer === lastNode &&
selectionInfo.endOffset === (lastNode.textContent?.length || 0);
}
/**
* Get the last text node in the element
*/
private getLastTextNode(node: Node): Text | null {
if (node.nodeType === Node.TEXT_NODE) {
return node as Text;
}
for (let i = node.childNodes.length - 1; i >= 0; i--) {
const lastText = this.getLastTextNode(node.childNodes[i]);
if (lastText) return lastText;
}
return null;
}
}