feat: Add WYSIWYG editor components and utilities

- Implemented WysiwygModalManager for managing modals related to code blocks and block settings.
- Created WysiwygSelection for handling text selection across Shadow DOM boundaries.
- Introduced WysiwygShortcuts for managing keyboard shortcuts and slash menu items.
- Developed wysiwygStyles for consistent styling of the WYSIWYG editor.
- Defined types for blocks, slash menu items, and shortcut patterns in wysiwyg.types.ts.
This commit is contained in:
2025-09-18 14:23:42 +00:00
parent ba0f1602a1
commit ee470775b2
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import { BaseBlockHandler, type IBlockEventHandlers } from '../block.base.js';
import type { IBlock } from '../../wysiwyg.types.js';
import { cssManager } from '@design.estate/dees-element';
import { WysiwygSelection } from '../../wysiwyg.selection.js';
import hlight from 'highlight.js';
import { cssGeistFontFamily, cssMonoFontFamily } from '../../../00fonts.js';
import { PROGRAMMING_LANGUAGES } from '../../wysiwyg.constants.js';
/**
* CodeBlockHandler with improved architecture
*
* Key features:
* 1. Simple DOM structure
* 2. Line number handling
* 3. Syntax highlighting only when not focused (grey text while editing)
* 4. Clean event handling
* 5. Copy button functionality
*/
export class CodeBlockHandler extends BaseBlockHandler {
type = 'code';
private highlightTimer: any = null;
render(block: IBlock, isSelected: boolean): string {
const language = block.metadata?.language || 'typescript';
const content = block.content || '';
const lineCount = content.split('\n').length;
// Generate line numbers
let lineNumbersHtml = '';
for (let i = 1; i <= lineCount; i++) {
lineNumbersHtml += `<div class="line-number">${i}</div>`;
}
// Generate language options
const languageOptions = PROGRAMMING_LANGUAGES.map(lang => {
const value = lang.toLowerCase();
return `<option value="${value}" ${value === language ? 'selected' : ''}>${lang}</option>`;
}).join('');
return `
<div class="code-block-container${isSelected ? ' selected' : ''}" data-language="${language}">
<div class="code-header">
<select class="language-selector" data-block-id="${block.id}">
${languageOptions}
</select>
<button class="copy-button" title="Copy code">
<svg class="copy-icon" width="16" height="16" viewBox="0 0 16 16" fill="currentColor">
<path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 010 1.5h-1.5a.25.25 0 00-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 00.25-.25v-1.5a.75.75 0 011.5 0v1.5A1.75 1.75 0 019.25 16h-7.5A1.75 1.75 0 010 14.25v-7.5z"></path>
<path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0114.25 11h-7.5A1.75 1.75 0 015 9.25v-7.5zm1.75-.25a.25.25 0 00-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 00.25-.25v-7.5a.25.25 0 00-.25-.25h-7.5z"></path>
</svg>
<span class="copy-text">Copy</span>
</button>
</div>
<div class="code-body">
<div class="line-numbers">${lineNumbersHtml}</div>
<div class="code-content">
<pre class="code-pre"><code class="code-editor"
contenteditable="true"
data-block-id="${block.id}"
data-block-type="${block.type}"
spellcheck="false">${this.escapeHtml(content)}</code></pre>
</div>
</div>
</div>
`;
}
setup(element: HTMLElement, block: IBlock, handlers: IBlockEventHandlers): void {
const editor = element.querySelector('.code-editor') as HTMLElement;
const container = element.querySelector('.code-block-container') as HTMLElement;
const copyButton = element.querySelector('.copy-button') as HTMLButtonElement;
const languageSelector = element.querySelector('.language-selector') as HTMLSelectElement;
if (!editor || !container) return;
// Setup language selector
if (languageSelector) {
languageSelector.addEventListener('change', (e) => {
const newLanguage = (e.target as HTMLSelectElement).value;
block.metadata = { ...block.metadata, language: newLanguage };
container.setAttribute('data-language', newLanguage);
// Update the syntax highlighting if content exists and not focused
if (block.content && document.activeElement !== editor) {
this.applyHighlighting(element, block);
}
// Notify about the change
if (handlers.onInput) {
handlers.onInput(new InputEvent('input'));
}
});
}
// Setup copy button
if (copyButton) {
copyButton.addEventListener('click', async () => {
const content = editor.textContent || '';
try {
await navigator.clipboard.writeText(content);
// Show feedback
const copyText = copyButton.querySelector('.copy-text') as HTMLElement;
const originalText = copyText.textContent;
copyText.textContent = 'Copied!';
copyButton.classList.add('copied');
// Reset after 2 seconds
setTimeout(() => {
copyText.textContent = originalText;
copyButton.classList.remove('copied');
}, 2000);
} catch (err) {
console.error('Failed to copy:', err);
// Fallback for older browsers
const textArea = document.createElement('textarea');
textArea.value = content;
textArea.style.position = 'fixed';
textArea.style.opacity = '0';
document.body.appendChild(textArea);
textArea.select();
try {
// @ts-ignore - execCommand is deprecated but needed for fallback
document.execCommand('copy');
// Show feedback
const copyText = copyButton.querySelector('.copy-text') as HTMLElement;
const originalText = copyText.textContent;
copyText.textContent = 'Copied!';
copyButton.classList.add('copied');
setTimeout(() => {
copyText.textContent = originalText;
copyButton.classList.remove('copied');
}, 2000);
} catch (err) {
console.error('Fallback copy failed:', err);
}
document.body.removeChild(textArea);
}
});
}
// Track if we're currently editing
let isEditing = false;
// Focus handler
editor.addEventListener('focus', () => {
isEditing = true;
container.classList.add('editing');
// Remove all syntax highlighting when focused
const content = editor.textContent || '';
editor.textContent = content; // This removes all HTML formatting
// Restore cursor position after removing highlighting
requestAnimationFrame(() => {
const range = document.createRange();
const selection = window.getSelection();
if (editor.firstChild) {
range.setStart(editor.firstChild, 0);
range.collapse(true);
selection?.removeAllRanges();
selection?.addRange(range);
}
});
handlers.onFocus();
});
// Blur handler
editor.addEventListener('blur', () => {
isEditing = false;
container.classList.remove('editing');
// Apply final highlighting on blur
this.applyHighlighting(element, block);
handlers.onBlur();
});
// Input handler
editor.addEventListener('input', (e) => {
handlers.onInput(e as InputEvent);
// Update line numbers
this.updateLineNumbers(element);
// Clear any pending highlight timer (no highlighting while editing)
clearTimeout(this.highlightTimer);
});
// Keydown handler
editor.addEventListener('keydown', (e) => {
// Handle Tab key for code blocks
if (e.key === 'Tab') {
e.preventDefault();
const selection = window.getSelection();
if (selection && selection.rangeCount > 0) {
const range = selection.getRangeAt(0);
const textNode = document.createTextNode(' ');
range.insertNode(textNode);
range.setStartAfter(textNode);
range.setEndAfter(textNode);
selection.removeAllRanges();
selection.addRange(range);
handlers.onInput(new InputEvent('input'));
this.updateLineNumbers(element);
}
return;
}
// Check cursor position for navigation keys
if (['ArrowLeft', 'ArrowRight', 'ArrowUp', 'ArrowDown'].includes(e.key)) {
const cursorPos = this.getCursorPosition(element);
const textLength = editor.textContent?.length || 0;
// For ArrowLeft at position 0 or ArrowRight at end, let parent handle navigation
if ((e.key === 'ArrowLeft' && cursorPos === 0) ||
(e.key === 'ArrowRight' && cursorPos === textLength)) {
// Pass to parent handler for inter-block navigation
handlers.onKeyDown(e);
return;
}
// For ArrowUp/Down, check if we're at first/last line
if (e.key === 'ArrowUp' || e.key === 'ArrowDown') {
const lines = (editor.textContent || '').split('\n');
const currentLine = this.getCurrentLineIndex(editor);
if ((e.key === 'ArrowUp' && currentLine === 0) ||
(e.key === 'ArrowDown' && currentLine === lines.length - 1)) {
// Let parent handle navigation to prev/next block
handlers.onKeyDown(e);
return;
}
}
}
// Pass other keys to parent handler
handlers.onKeyDown(e);
});
// Paste handler - plain text only
editor.addEventListener('paste', (e) => {
e.preventDefault();
const text = e.clipboardData?.getData('text/plain');
if (text) {
const selection = window.getSelection();
if (selection && selection.rangeCount > 0) {
const range = selection.getRangeAt(0);
range.deleteContents();
const textNode = document.createTextNode(text);
range.insertNode(textNode);
range.setStartAfter(textNode);
range.setEndAfter(textNode);
selection.removeAllRanges();
selection.addRange(range);
handlers.onInput(new InputEvent('input'));
this.updateLineNumbers(element);
}
}
});
// Composition handlers
editor.addEventListener('compositionstart', () => handlers.onCompositionStart());
editor.addEventListener('compositionend', () => handlers.onCompositionEnd());
// Initial syntax highlighting if content exists and not focused
if (block.content && document.activeElement !== editor) {
requestAnimationFrame(() => {
this.applyHighlighting(element, block);
});
}
}
private updateLineNumbers(element: HTMLElement): void {
const editor = element.querySelector('.code-editor') as HTMLElement;
const lineNumbersContainer = element.querySelector('.line-numbers') as HTMLElement;
if (!editor || !lineNumbersContainer) return;
const content = editor.textContent || '';
const lines = content.split('\n');
const lineCount = lines.length || 1;
let lineNumbersHtml = '';
for (let i = 1; i <= lineCount; i++) {
lineNumbersHtml += `<div class="line-number">${i}</div>`;
}
lineNumbersContainer.innerHTML = lineNumbersHtml;
}
private getCurrentLineIndex(editor: HTMLElement): number {
const selection = window.getSelection();
if (!selection || selection.rangeCount === 0) return 0;
const range = selection.getRangeAt(0);
const preCaretRange = range.cloneRange();
preCaretRange.selectNodeContents(editor);
preCaretRange.setEnd(range.startContainer, range.startOffset);
const textBeforeCursor = preCaretRange.toString();
const linesBeforeCursor = textBeforeCursor.split('\n');
return linesBeforeCursor.length - 1; // 0-indexed
}
private applyHighlighting(element: HTMLElement, block: IBlock): void {
const editor = element.querySelector('.code-editor') as HTMLElement;
if (!editor) return;
// Store cursor position
const cursorPos = this.getCursorPosition(element);
// Get plain text content
const content = editor.textContent || '';
const language = block.metadata?.language || 'typescript';
// Apply highlighting
try {
const result = hlight.highlight(content, {
language: language,
ignoreIllegals: true
});
// Only update if we have valid highlighted content
if (result.value) {
editor.innerHTML = result.value;
// Restore cursor position if editor is focused
if (document.activeElement === editor && cursorPos !== null) {
requestAnimationFrame(() => {
WysiwygSelection.setCursorPosition(editor, cursorPos);
});
}
}
} catch (error) {
// If highlighting fails, keep plain text
console.warn('Syntax highlighting failed:', error);
}
}
private escapeHtml(text: string): string {
const div = document.createElement('div');
div.textContent = text;
return div.innerHTML;
}
getContent(element: HTMLElement): string {
const editor = element.querySelector('.code-editor') as HTMLElement;
return editor?.textContent || '';
}
setContent(element: HTMLElement, content: string): void {
const editor = element.querySelector('.code-editor') as HTMLElement;
if (!editor) return;
editor.textContent = content;
this.updateLineNumbers(element);
// Apply highlighting if not focused
if (document.activeElement !== editor) {
const block: IBlock = {
id: editor.dataset.blockId || '',
type: 'code',
content: content,
metadata: {
language: element.querySelector('.code-block-container')?.getAttribute('data-language') || 'typescript'
}
};
this.applyHighlighting(element, block);
}
}
getCursorPosition(element: HTMLElement): number | null {
const editor = element.querySelector('.code-editor') as HTMLElement;
if (!editor) return null;
const selection = window.getSelection();
if (!selection || selection.rangeCount === 0) return null;
const range = selection.getRangeAt(0);
if (!editor.contains(range.startContainer)) return null;
const preCaretRange = document.createRange();
preCaretRange.selectNodeContents(editor);
preCaretRange.setEnd(range.startContainer, range.startOffset);
return preCaretRange.toString().length;
}
setCursorToStart(element: HTMLElement): void {
const editor = element.querySelector('.code-editor') as HTMLElement;
if (editor) {
WysiwygSelection.setCursorPosition(editor, 0);
}
}
setCursorToEnd(element: HTMLElement): void {
const editor = element.querySelector('.code-editor') as HTMLElement;
if (editor) {
const length = editor.textContent?.length || 0;
WysiwygSelection.setCursorPosition(editor, length);
}
}
focus(element: HTMLElement): void {
const editor = element.querySelector('.code-editor') as HTMLElement;
editor?.focus();
}
focusWithCursor(element: HTMLElement, position: 'start' | 'end' | number = 'end'): void {
const editor = element.querySelector('.code-editor') as HTMLElement;
if (!editor) return;
editor.focus();
requestAnimationFrame(() => {
if (position === 'start') {
this.setCursorToStart(element);
} else if (position === 'end') {
this.setCursorToEnd(element);
} else if (typeof position === 'number') {
WysiwygSelection.setCursorPosition(editor, position);
}
});
}
getSplitContent(element: HTMLElement): { before: string; after: string } | null {
const position = this.getCursorPosition(element);
if (position === null) return null;
const content = this.getContent(element);
return {
before: content.substring(0, position),
after: content.substring(position)
};
}
getStyles(): string {
return `
/* Code Block Container - Minimalist shadcn style */
.code-block-container {
position: relative;
margin: 12px 0;
background: transparent;
border: 1px solid ${cssManager.bdTheme('#e5e7eb', '#374151')};
border-radius: 6px;
overflow: hidden;
transition: all 0.15s ease;
}
.code-block-container.selected {
border-color: ${cssManager.bdTheme('#9ca3af', '#6b7280')};
}
.code-block-container.editing {
border-color: ${cssManager.bdTheme('#6b7280', '#9ca3af')};
background: ${cssManager.bdTheme('#fafafa', '#0a0a0a')};
}
/* Header - Simplified */
.code-header {
background: transparent;
border-bottom: 1px solid ${cssManager.bdTheme('#e5e7eb', '#374151')};
padding: 8px 12px;
display: flex;
justify-content: space-between;
align-items: center;
}
.language-selector {
font-size: 12px;
color: ${cssManager.bdTheme('#6b7280', '#9ca3af')};
font-weight: 500;
text-transform: uppercase;
letter-spacing: 0.05em;
font-family: ${cssGeistFontFamily};
background: transparent;
border: 1px solid transparent;
border-radius: 4px;
padding: 4px 8px;
cursor: pointer;
transition: all 0.15s ease;
outline: none;
}
.language-selector:hover {
background: ${cssManager.bdTheme('#f9fafb', '#1f2937')};
border-color: ${cssManager.bdTheme('#e5e7eb', '#374151')};
color: ${cssManager.bdTheme('#374151', '#e5e7eb')};
}
.language-selector:focus {
border-color: ${cssManager.bdTheme('#9ca3af', '#6b7280')};
}
/* Copy Button - Minimal */
.copy-button {
display: flex;
align-items: center;
gap: 4px;
padding: 4px 8px;
background: transparent;
border: 1px solid transparent;
border-radius: 4px;
color: ${cssManager.bdTheme('#6b7280', '#9ca3af')};
font-size: 12px;
font-family: ${cssGeistFontFamily};
cursor: pointer;
transition: all 0.15s ease;
outline: none;
}
.copy-button:hover {
background: ${cssManager.bdTheme('#f9fafb', '#1f2937')};
border-color: ${cssManager.bdTheme('#e5e7eb', '#374151')};
color: ${cssManager.bdTheme('#374151', '#e5e7eb')};
}
.copy-button:active {
transform: scale(0.98);
}
.copy-button.copied {
color: ${cssManager.bdTheme('#059669', '#10b981')};
}
.copy-icon {
flex-shrink: 0;
opacity: 0.7;
}
.copy-button:hover .copy-icon {
opacity: 1;
}
.copy-text {
min-width: 40px;
text-align: center;
}
/* Code Body */
.code-body {
display: flex;
position: relative;
background: ${cssManager.bdTheme('#fafafa', '#0a0a0a')};
}
/* Line Numbers - Subtle */
.line-numbers {
flex-shrink: 0;
padding: 12px 0;
background: transparent;
text-align: right;
user-select: none;
min-width: 40px;
border-right: 1px solid ${cssManager.bdTheme('#e5e7eb', '#374151')};
}
.line-number {
padding: 0 12px 0 8px;
color: ${cssManager.bdTheme('#9ca3af', '#4b5563')};
font-family: ${cssMonoFontFamily};
font-size: 13px;
line-height: 20px;
height: 20px;
}
/* Code Content */
.code-content {
flex: 1;
overflow-x: auto;
position: relative;
}
.code-pre {
margin: 0;
padding: 0;
background: transparent;
}
.code-editor {
display: block;
padding: 12px 16px;
margin: 0;
font-family: ${cssMonoFontFamily};
font-size: 13px;
line-height: 20px;
color: ${cssManager.bdTheme('#111827', '#f9fafb')};
background: transparent;
border: none;
outline: none;
white-space: pre-wrap;
word-wrap: break-word;
min-height: 60px;
overflow: visible;
}
/* Placeholder */
.code-editor:empty::before {
content: "// Type or paste code here...";
color: ${cssManager.bdTheme('#9ca3af', '#4b5563')};
pointer-events: none;
}
/* When editing (focused), show grey text without highlighting */
.code-block-container.editing .code-editor {
color: ${cssManager.bdTheme('#6b7280', '#9ca3af')} !important;
}
.code-block-container.editing .code-editor * {
color: inherit !important;
}
/* Syntax Highlighting - Muted colors */
.code-editor .hljs-keyword {
color: ${cssManager.bdTheme('#dc2626', '#f87171')};
font-weight: 500;
}
.code-editor .hljs-string {
color: ${cssManager.bdTheme('#059669', '#10b981')};
}
.code-editor .hljs-number {
color: ${cssManager.bdTheme('#7c3aed', '#a78bfa')};
}
.code-editor .hljs-function {
color: ${cssManager.bdTheme('#2563eb', '#60a5fa')};
}
.code-editor .hljs-comment {
color: ${cssManager.bdTheme('#6b7280', '#6b7280')};
font-style: italic;
}
.code-editor .hljs-variable,
.code-editor .hljs-attr {
color: ${cssManager.bdTheme('#ea580c', '#fb923c')};
}
.code-editor .hljs-class,
.code-editor .hljs-title {
color: ${cssManager.bdTheme('#2563eb', '#60a5fa')};
font-weight: 500;
}
.code-editor .hljs-params {
color: ${cssManager.bdTheme('#374151', '#e5e7eb')};
}
.code-editor .hljs-built_in {
color: ${cssManager.bdTheme('#7c3aed', '#a78bfa')};
}
.code-editor .hljs-literal {
color: ${cssManager.bdTheme('#7c3aed', '#a78bfa')};
}
.code-editor .hljs-meta {
color: ${cssManager.bdTheme('#6b7280', '#9ca3af')};
}
.code-editor .hljs-punctuation {
color: ${cssManager.bdTheme('#374151', '#d1d5db')};
}
.code-editor .hljs-tag {
color: ${cssManager.bdTheme('#dc2626', '#f87171')};
}
.code-editor .hljs-attribute {
color: ${cssManager.bdTheme('#2563eb', '#60a5fa')};
}
.code-editor .hljs-selector-tag {
color: ${cssManager.bdTheme('#dc2626', '#f87171')};
}
.code-editor .hljs-selector-class {
color: ${cssManager.bdTheme('#2563eb', '#60a5fa')};
}
.code-editor .hljs-selector-id {
color: ${cssManager.bdTheme('#7c3aed', '#a78bfa')};
}
/* Selection */
.code-editor::selection,
.code-editor *::selection {
background: ${cssManager.bdTheme('rgba(99, 102, 241, 0.2)', 'rgba(99, 102, 241, 0.3)')};
}
/* Scrollbar styling - Minimal */
.code-content::-webkit-scrollbar {
height: 6px;
}
.code-content::-webkit-scrollbar-track {
background: transparent;
}
.code-content::-webkit-scrollbar-thumb {
background: ${cssManager.bdTheme('#d1d5db', '#4b5563')};
border-radius: 3px;
}
.code-content::-webkit-scrollbar-thumb:hover {
background: ${cssManager.bdTheme('#9ca3af', '#6b7280')};
}
`;
}
}

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import { BaseBlockHandler, type IBlockEventHandlers } from '../block.base.js';
import type { IBlock } from '../../wysiwyg.types.js';
import { cssManager } from '@design.estate/dees-element';
import { WysiwygBlocks } from '../../wysiwyg.blocks.js';
import { WysiwygSelection } from '../../wysiwyg.selection.js';
export class HeadingBlockHandler extends BaseBlockHandler {
type: string;
private level: 1 | 2 | 3;
// Track cursor position
private lastKnownCursorPosition: number = 0;
private lastSelectedText: string = '';
private selectionHandler: (() => void) | null = null;
constructor(type: 'heading-1' | 'heading-2' | 'heading-3') {
super();
this.type = type;
this.level = parseInt(type.split('-')[1]) as 1 | 2 | 3;
}
render(block: IBlock, isSelected: boolean): string {
const selectedClass = isSelected ? ' selected' : '';
const placeholder = this.getPlaceholder();
return `
<div
class="block heading-${this.level}${selectedClass}"
contenteditable="true"
data-placeholder="${placeholder}"
data-block-id="${block.id}"
data-block-type="${block.type}"
></div>
`;
}
setup(element: HTMLElement, block: IBlock, handlers: IBlockEventHandlers): void {
const headingBlock = element.querySelector(`.block.heading-${this.level}`) as HTMLDivElement;
if (!headingBlock) {
console.error('HeadingBlockHandler.setup: No heading block element found');
return;
}
// Set initial content if needed
if (block.content && !headingBlock.innerHTML) {
headingBlock.innerHTML = block.content;
}
// Input handler with cursor tracking
headingBlock.addEventListener('input', (e) => {
handlers.onInput(e as InputEvent);
// Track cursor position after input
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
});
// Keydown handler with cursor tracking
headingBlock.addEventListener('keydown', (e) => {
// Track cursor position before keydown
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
handlers.onKeyDown(e);
});
// Focus handler
headingBlock.addEventListener('focus', () => {
handlers.onFocus();
});
// Blur handler
headingBlock.addEventListener('blur', () => {
handlers.onBlur();
});
// Composition handlers for IME support
headingBlock.addEventListener('compositionstart', () => {
handlers.onCompositionStart();
});
headingBlock.addEventListener('compositionend', () => {
handlers.onCompositionEnd();
});
// Mouse up handler
headingBlock.addEventListener('mouseup', (e) => {
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
// Selection will be handled by selectionchange event
handlers.onMouseUp?.(e);
});
// Click handler with delayed cursor tracking
headingBlock.addEventListener('click', (e: MouseEvent) => {
// Small delay to let browser set cursor position
setTimeout(() => {
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
}, 0);
});
// Keyup handler for additional cursor tracking
headingBlock.addEventListener('keyup', (e) => {
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
});
// Set up selection change handler
this.setupSelectionHandler(element, headingBlock, block);
}
private setupSelectionHandler(element: HTMLElement, headingBlock: HTMLDivElement, block: IBlock): void {
// Add selection change handler
const checkSelection = () => {
const selection = window.getSelection();
if (!selection || selection.rangeCount === 0) return;
const selectedText = selection.toString();
if (selectedText.length === 0) {
// Clear selection if no text
if (this.lastSelectedText) {
this.lastSelectedText = '';
this.dispatchSelectionEvent(element, {
text: '',
blockId: block.id,
hasSelection: false
});
}
return;
}
// Get parent wysiwyg component's shadow root - in setup, we need to traverse
const wysiwygBlock = (headingBlock.getRootNode() as ShadowRoot).host as any;
const parentComponent = wysiwygBlock?.closest('dees-input-wysiwyg');
const parentShadowRoot = parentComponent?.shadowRoot;
const blockShadowRoot = wysiwygBlock?.shadowRoot;
// Use getComposedRanges with shadow roots as per MDN docs
const shadowRoots: ShadowRoot[] = [];
if (parentShadowRoot) shadowRoots.push(parentShadowRoot);
if (blockShadowRoot) shadowRoots.push(blockShadowRoot);
// Get selection info using our Shadow DOM-aware utility
const selectionInfo = WysiwygSelection.getSelectionInfo(...shadowRoots);
if (!selectionInfo) return;
// Check if selection is within this block
const startInBlock = WysiwygSelection.containsAcrossShadowDOM(headingBlock, selectionInfo.startContainer);
const endInBlock = WysiwygSelection.containsAcrossShadowDOM(headingBlock, selectionInfo.endContainer);
if (startInBlock || endInBlock) {
if (selectedText !== this.lastSelectedText) {
this.lastSelectedText = selectedText;
// Create range and get rect
const range = WysiwygSelection.createRangeFromInfo(selectionInfo);
const rect = range.getBoundingClientRect();
// Dispatch event
this.dispatchSelectionEvent(element, {
text: selectedText.trim(),
blockId: block.id,
range: range,
rect: rect,
hasSelection: true
});
}
} else if (this.lastSelectedText) {
// Clear selection if no longer in this block
this.lastSelectedText = '';
this.dispatchSelectionEvent(element, {
text: '',
blockId: block.id,
hasSelection: false
});
}
};
// Listen for selection changes
document.addEventListener('selectionchange', checkSelection);
// Store the handler for cleanup
this.selectionHandler = checkSelection;
// Clean up on disconnect (will be called by dees-wysiwyg-block)
const wysiwygBlock = (headingBlock.getRootNode() as ShadowRoot).host as any;
if (wysiwygBlock) {
const originalDisconnectedCallback = (wysiwygBlock as any).disconnectedCallback;
(wysiwygBlock as any).disconnectedCallback = async function() {
if (this.selectionHandler) {
document.removeEventListener('selectionchange', this.selectionHandler);
this.selectionHandler = null;
}
if (originalDisconnectedCallback) {
await originalDisconnectedCallback.call(wysiwygBlock);
}
}.bind(this);
}
}
private dispatchSelectionEvent(element: HTMLElement, detail: any): void {
const event = new CustomEvent('block-text-selected', {
detail,
bubbles: true,
composed: true
});
element.dispatchEvent(event);
}
getStyles(): string {
// Return styles for all heading levels
return `
.block.heading-1 {
font-size: 32px;
font-weight: 700;
line-height: 1.2;
margin: 24px 0 8px 0;
color: ${cssManager.bdTheme('#000000', '#ffffff')};
}
.block.heading-2 {
font-size: 24px;
font-weight: 600;
line-height: 1.3;
margin: 20px 0 6px 0;
color: ${cssManager.bdTheme('#000000', '#ffffff')};
}
.block.heading-3 {
font-size: 20px;
font-weight: 600;
line-height: 1.4;
margin: 16px 0 4px 0;
color: ${cssManager.bdTheme('#000000', '#ffffff')};
}
`;
}
getPlaceholder(): string {
switch(this.level) {
case 1:
return 'Heading 1';
case 2:
return 'Heading 2';
case 3:
return 'Heading 3';
default:
return 'Heading';
}
}
/**
* Helper to get the last text node in an element
*/
private getLastTextNode(element: Node): Text | null {
if (element.nodeType === Node.TEXT_NODE) {
return element as Text;
}
for (let i = element.childNodes.length - 1; i >= 0; i--) {
const lastText = this.getLastTextNode(element.childNodes[i]);
if (lastText) return lastText;
}
return null;
}
// Helper methods for heading functionality (mostly the same as paragraph)
getCursorPosition(element: HTMLElement, context?: any): number | null {
// Get the actual heading element
const headingBlock = element.querySelector(`.block.heading-${this.level}`) as HTMLDivElement;
if (!headingBlock) {
return null;
}
// Get shadow roots from context
const wysiwygBlock = context?.component;
const parentComponent = wysiwygBlock?.closest('dees-input-wysiwyg');
const parentShadowRoot = parentComponent?.shadowRoot;
const blockShadowRoot = context?.shadowRoot;
// Get selection info with both shadow roots for proper traversal
const shadowRoots: ShadowRoot[] = [];
if (parentShadowRoot) shadowRoots.push(parentShadowRoot);
if (blockShadowRoot) shadowRoots.push(blockShadowRoot);
const selectionInfo = WysiwygSelection.getSelectionInfo(...shadowRoots);
if (!selectionInfo) {
return null;
}
if (!WysiwygSelection.containsAcrossShadowDOM(headingBlock, selectionInfo.startContainer)) {
return null;
}
// Create a range from start of element to cursor position
const preCaretRange = document.createRange();
preCaretRange.selectNodeContents(headingBlock);
preCaretRange.setEnd(selectionInfo.startContainer, selectionInfo.startOffset);
// Get the text content length up to cursor
const position = preCaretRange.toString().length;
return position;
}
getContent(element: HTMLElement, context?: any): string {
const headingBlock = element.querySelector(`.block.heading-${this.level}`) as HTMLDivElement;
if (!headingBlock) return '';
// For headings, get the innerHTML which includes formatting tags
const content = headingBlock.innerHTML || '';
return content;
}
setContent(element: HTMLElement, content: string, context?: any): void {
const headingBlock = element.querySelector(`.block.heading-${this.level}`) as HTMLDivElement;
if (!headingBlock) return;
// Store if we have focus
const hadFocus = document.activeElement === headingBlock ||
element.shadowRoot?.activeElement === headingBlock;
headingBlock.innerHTML = content;
// Restore focus if we had it
if (hadFocus) {
headingBlock.focus();
}
}
setCursorToStart(element: HTMLElement, context?: any): void {
const headingBlock = element.querySelector(`.block.heading-${this.level}`) as HTMLDivElement;
if (headingBlock) {
WysiwygBlocks.setCursorToStart(headingBlock);
}
}
setCursorToEnd(element: HTMLElement, context?: any): void {
const headingBlock = element.querySelector(`.block.heading-${this.level}`) as HTMLDivElement;
if (headingBlock) {
WysiwygBlocks.setCursorToEnd(headingBlock);
}
}
focus(element: HTMLElement, context?: any): void {
const headingBlock = element.querySelector(`.block.heading-${this.level}`) as HTMLDivElement;
if (!headingBlock) return;
// Ensure the element is focusable
if (!headingBlock.hasAttribute('contenteditable')) {
headingBlock.setAttribute('contenteditable', 'true');
}
headingBlock.focus();
// If focus failed, try again after a microtask
if (document.activeElement !== headingBlock && element.shadowRoot?.activeElement !== headingBlock) {
Promise.resolve().then(() => {
headingBlock.focus();
});
}
}
focusWithCursor(element: HTMLElement, position: 'start' | 'end' | number = 'end', context?: any): void {
const headingBlock = element.querySelector(`.block.heading-${this.level}`) as HTMLDivElement;
if (!headingBlock) return;
// Ensure element is focusable first
if (!headingBlock.hasAttribute('contenteditable')) {
headingBlock.setAttribute('contenteditable', 'true');
}
// For 'end' position, we need to set up selection before focus to prevent browser default
if (position === 'end' && headingBlock.textContent && headingBlock.textContent.length > 0) {
// Set up the selection first
const sel = window.getSelection();
if (sel) {
const range = document.createRange();
const lastNode = this.getLastTextNode(headingBlock) || headingBlock;
if (lastNode.nodeType === Node.TEXT_NODE) {
range.setStart(lastNode, lastNode.textContent?.length || 0);
range.setEnd(lastNode, lastNode.textContent?.length || 0);
} else {
range.selectNodeContents(lastNode);
range.collapse(false);
}
sel.removeAllRanges();
sel.addRange(range);
}
}
// Now focus the element
headingBlock.focus();
// Set cursor position after focus is established (for non-end positions)
const setCursor = () => {
if (position === 'start') {
this.setCursorToStart(element, context);
} else if (position === 'end' && (!headingBlock.textContent || headingBlock.textContent.length === 0)) {
// Only call setCursorToEnd for empty blocks
this.setCursorToEnd(element, context);
} else if (typeof position === 'number') {
// Use the selection utility to set cursor position
WysiwygSelection.setCursorPosition(headingBlock, position);
}
};
// Ensure cursor is set after focus
if (document.activeElement === headingBlock || element.shadowRoot?.activeElement === headingBlock) {
setCursor();
} else {
// Wait for focus to be established
Promise.resolve().then(() => {
if (document.activeElement === headingBlock || element.shadowRoot?.activeElement === headingBlock) {
setCursor();
} else {
// Try again with a small delay - sometimes focus needs more time
setTimeout(() => {
if (document.activeElement === headingBlock || element.shadowRoot?.activeElement === headingBlock) {
setCursor();
}
}, 10);
}
});
}
}
getSplitContent(element: HTMLElement, context?: any): { before: string; after: string } | null {
const headingBlock = element.querySelector(`.block.heading-${this.level}`) as HTMLDivElement;
if (!headingBlock) {
return null;
}
// Get shadow roots from context
const wysiwygBlock = context?.component;
const parentComponent = wysiwygBlock?.closest('dees-input-wysiwyg');
const parentShadowRoot = parentComponent?.shadowRoot;
const blockShadowRoot = context?.shadowRoot;
// Get selection info with both shadow roots for proper traversal
const shadowRoots: ShadowRoot[] = [];
if (parentShadowRoot) shadowRoots.push(parentShadowRoot);
if (blockShadowRoot) shadowRoots.push(blockShadowRoot);
const selectionInfo = WysiwygSelection.getSelectionInfo(...shadowRoots);
if (!selectionInfo) {
// Try using last known cursor position
if (this.lastKnownCursorPosition !== null) {
const fullText = headingBlock.textContent || '';
const pos = Math.min(this.lastKnownCursorPosition, fullText.length);
return {
before: fullText.substring(0, pos),
after: fullText.substring(pos)
};
}
return null;
}
// Make sure the selection is within this block
if (!WysiwygSelection.containsAcrossShadowDOM(headingBlock, selectionInfo.startContainer)) {
// Try using last known cursor position
if (this.lastKnownCursorPosition !== null) {
const fullText = headingBlock.textContent || '';
const pos = Math.min(this.lastKnownCursorPosition, fullText.length);
return {
before: fullText.substring(0, pos),
after: fullText.substring(pos)
};
}
return null;
}
// Get cursor position first
const cursorPos = this.getCursorPosition(element, context);
if (cursorPos === null || cursorPos === 0) {
// If cursor is at start or can't determine position, move all content
return {
before: '',
after: headingBlock.innerHTML
};
}
// For HTML content, split using ranges to preserve formatting
const beforeRange = document.createRange();
const afterRange = document.createRange();
// Before range: from start of element to cursor
beforeRange.setStart(headingBlock, 0);
beforeRange.setEnd(selectionInfo.startContainer, selectionInfo.startOffset);
// After range: from cursor to end of element
afterRange.setStart(selectionInfo.startContainer, selectionInfo.startOffset);
afterRange.setEnd(headingBlock, headingBlock.childNodes.length);
// Extract HTML content
const beforeFragment = beforeRange.cloneContents();
const afterFragment = afterRange.cloneContents();
// Convert to HTML strings
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
};
}
}

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import { BaseBlockHandler, type IBlockEventHandlers } from '../block.base.js';
import type { IBlock } from '../../wysiwyg.types.js';
import { cssManager } from '@design.estate/dees-element';
import { WysiwygBlocks } from '../../wysiwyg.blocks.js';
import { WysiwygSelection } from '../../wysiwyg.selection.js';
export class ListBlockHandler extends BaseBlockHandler {
type = 'list';
// Track cursor position and list state
private lastKnownCursorPosition: number = 0;
private lastSelectedText: string = '';
private selectionHandler: (() => void) | null = null;
render(block: IBlock, isSelected: boolean): string {
const selectedClass = isSelected ? ' selected' : '';
const listType = block.metadata?.listType || 'unordered';
const listTag = listType === 'ordered' ? 'ol' : 'ul';
// Render list content
const listContent = this.renderListContent(block.content, block.metadata);
return `
<div
class="block list${selectedClass}"
contenteditable="true"
data-block-id="${block.id}"
data-block-type="${block.type}"
>${listContent}</div>
`;
}
private renderListContent(content: string | undefined, metadata: any): string {
if (!content) return '<ul><li></li></ul>';
const listType = metadata?.listType || 'unordered';
const listTag = listType === 'ordered' ? 'ol' : 'ul';
// Split content by newlines to create list items
const lines = content.split('\n').filter(line => line.trim());
if (lines.length === 0) {
return `<${listTag}><li></li></${listTag}>`;
}
const listItems = lines.map(line => `<li>${line}</li>`).join('');
return `<${listTag}>${listItems}</${listTag}>`;
}
setup(element: HTMLElement, block: IBlock, handlers: IBlockEventHandlers): void {
const listBlock = element.querySelector('.block.list') as HTMLDivElement;
if (!listBlock) {
console.error('ListBlockHandler.setup: No list block element found');
return;
}
// Set initial content if needed
if (block.content && !listBlock.innerHTML) {
listBlock.innerHTML = this.renderListContent(block.content, block.metadata);
}
// Input handler
listBlock.addEventListener('input', (e) => {
handlers.onInput(e as InputEvent);
// Track cursor position after input
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
});
// Keydown handler
listBlock.addEventListener('keydown', (e) => {
// Track cursor position before keydown
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
// Special handling for Enter key in lists
if (e.key === 'Enter' && !e.shiftKey) {
const selection = window.getSelection();
if (selection && selection.rangeCount > 0) {
const range = selection.getRangeAt(0);
const currentLi = range.startContainer.parentElement?.closest('li');
if (currentLi && currentLi.textContent === '') {
// Empty list item - exit list mode
e.preventDefault();
handlers.onKeyDown(e);
return;
}
// Otherwise, let browser create new list item naturally
}
}
handlers.onKeyDown(e);
});
// Focus handler
listBlock.addEventListener('focus', () => {
handlers.onFocus();
});
// Blur handler
listBlock.addEventListener('blur', () => {
handlers.onBlur();
});
// Composition handlers for IME support
listBlock.addEventListener('compositionstart', () => {
handlers.onCompositionStart();
});
listBlock.addEventListener('compositionend', () => {
handlers.onCompositionEnd();
});
// Mouse up handler
listBlock.addEventListener('mouseup', (e) => {
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
handlers.onMouseUp?.(e);
});
// Click handler
listBlock.addEventListener('click', (e: MouseEvent) => {
setTimeout(() => {
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
}, 0);
});
// Keyup handler
listBlock.addEventListener('keyup', (e) => {
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
});
// Set up selection handler
this.setupSelectionHandler(element, listBlock, block);
}
private setupSelectionHandler(element: HTMLElement, listBlock: HTMLDivElement, block: IBlock): void {
const checkSelection = () => {
const selection = window.getSelection();
if (!selection || selection.rangeCount === 0) return;
const selectedText = selection.toString();
if (selectedText.length === 0) {
if (this.lastSelectedText) {
this.lastSelectedText = '';
this.dispatchSelectionEvent(element, {
text: '',
blockId: block.id,
hasSelection: false
});
}
return;
}
// Get parent wysiwyg component's shadow root
const wysiwygBlock = (listBlock.getRootNode() as ShadowRoot).host as any;
const parentComponent = wysiwygBlock?.closest('dees-input-wysiwyg');
const parentShadowRoot = parentComponent?.shadowRoot;
const blockShadowRoot = wysiwygBlock?.shadowRoot;
const shadowRoots: ShadowRoot[] = [];
if (parentShadowRoot) shadowRoots.push(parentShadowRoot);
if (blockShadowRoot) shadowRoots.push(blockShadowRoot);
const selectionInfo = WysiwygSelection.getSelectionInfo(...shadowRoots);
if (!selectionInfo) return;
const startInBlock = WysiwygSelection.containsAcrossShadowDOM(listBlock, selectionInfo.startContainer);
const endInBlock = WysiwygSelection.containsAcrossShadowDOM(listBlock, selectionInfo.endContainer);
if (startInBlock || endInBlock) {
if (selectedText !== this.lastSelectedText) {
this.lastSelectedText = selectedText;
const range = WysiwygSelection.createRangeFromInfo(selectionInfo);
const rect = range.getBoundingClientRect();
this.dispatchSelectionEvent(element, {
text: selectedText.trim(),
blockId: block.id,
range: range,
rect: rect,
hasSelection: true
});
}
} else if (this.lastSelectedText) {
this.lastSelectedText = '';
this.dispatchSelectionEvent(element, {
text: '',
blockId: block.id,
hasSelection: false
});
}
};
document.addEventListener('selectionchange', checkSelection);
this.selectionHandler = checkSelection;
// Cleanup on disconnect
const wysiwygBlock = (listBlock.getRootNode() as ShadowRoot).host as any;
if (wysiwygBlock) {
const originalDisconnectedCallback = (wysiwygBlock as any).disconnectedCallback;
(wysiwygBlock as any).disconnectedCallback = async function() {
if (this.selectionHandler) {
document.removeEventListener('selectionchange', this.selectionHandler);
this.selectionHandler = null;
}
if (originalDisconnectedCallback) {
await originalDisconnectedCallback.call(wysiwygBlock);
}
}.bind(this);
}
}
private dispatchSelectionEvent(element: HTMLElement, detail: any): void {
const event = new CustomEvent('block-text-selected', {
detail,
bubbles: true,
composed: true
});
element.dispatchEvent(event);
}
getStyles(): string {
return `
/* List specific styles */
.block.list {
padding: 0;
}
.block.list ul,
.block.list ol {
margin: 0;
padding-left: 24px;
}
.block.list li {
margin: 4px 0;
line-height: 1.6;
}
.block.list li:last-child {
margin-bottom: 0;
}
`;
}
getPlaceholder(): string {
return '';
}
// Helper methods for list functionality
getCursorPosition(element: HTMLElement, context?: any): number | null {
const listBlock = element.querySelector('.block.list') as HTMLDivElement;
if (!listBlock) return null;
const wysiwygBlock = context?.component;
const parentComponent = wysiwygBlock?.closest('dees-input-wysiwyg');
const parentShadowRoot = parentComponent?.shadowRoot;
const blockShadowRoot = context?.shadowRoot;
const shadowRoots: ShadowRoot[] = [];
if (parentShadowRoot) shadowRoots.push(parentShadowRoot);
if (blockShadowRoot) shadowRoots.push(blockShadowRoot);
const selectionInfo = WysiwygSelection.getSelectionInfo(...shadowRoots);
if (!selectionInfo) return null;
if (!WysiwygSelection.containsAcrossShadowDOM(listBlock, selectionInfo.startContainer)) {
return null;
}
// For lists, calculate position based on text content
const preCaretRange = document.createRange();
preCaretRange.selectNodeContents(listBlock);
preCaretRange.setEnd(selectionInfo.startContainer, selectionInfo.startOffset);
return preCaretRange.toString().length;
}
getContent(element: HTMLElement, context?: any): string {
const listBlock = element.querySelector('.block.list') as HTMLDivElement;
if (!listBlock) return '';
// Extract text content from list items
const listItems = listBlock.querySelectorAll('li');
const content = Array.from(listItems)
.map(li => li.textContent || '')
.join('\n');
return content;
}
setContent(element: HTMLElement, content: string, context?: any): void {
const listBlock = element.querySelector('.block.list') as HTMLDivElement;
if (!listBlock) return;
const hadFocus = document.activeElement === listBlock ||
element.shadowRoot?.activeElement === listBlock;
// Get current metadata to preserve list type
const listElement = listBlock.querySelector('ul, ol');
const isOrdered = listElement?.tagName === 'OL';
// Update content
listBlock.innerHTML = this.renderListContent(content, { listType: isOrdered ? 'ordered' : 'unordered' });
if (hadFocus) {
listBlock.focus();
}
}
setCursorToStart(element: HTMLElement, context?: any): void {
const listBlock = element.querySelector('.block.list') as HTMLDivElement;
if (!listBlock) return;
const firstLi = listBlock.querySelector('li');
if (firstLi) {
const textNode = this.getFirstTextNode(firstLi);
if (textNode) {
const range = document.createRange();
const selection = window.getSelection();
range.setStart(textNode, 0);
range.setEnd(textNode, 0);
selection?.removeAllRanges();
selection?.addRange(range);
}
}
}
setCursorToEnd(element: HTMLElement, context?: any): void {
const listBlock = element.querySelector('.block.list') as HTMLDivElement;
if (!listBlock) return;
const lastLi = listBlock.querySelector('li:last-child');
if (lastLi) {
const textNode = this.getLastTextNode(lastLi);
if (textNode) {
const range = document.createRange();
const selection = window.getSelection();
const textLength = textNode.textContent?.length || 0;
range.setStart(textNode, textLength);
range.setEnd(textNode, textLength);
selection?.removeAllRanges();
selection?.addRange(range);
}
}
}
private getFirstTextNode(element: Node): Text | null {
if (element.nodeType === Node.TEXT_NODE) {
return element as Text;
}
for (let i = 0; i < element.childNodes.length; i++) {
const firstText = this.getFirstTextNode(element.childNodes[i]);
if (firstText) return firstText;
}
return null;
}
private getLastTextNode(element: Node): Text | null {
if (element.nodeType === Node.TEXT_NODE) {
return element as Text;
}
for (let i = element.childNodes.length - 1; i >= 0; i--) {
const lastText = this.getLastTextNode(element.childNodes[i]);
if (lastText) return lastText;
}
return null;
}
focus(element: HTMLElement, context?: any): void {
const listBlock = element.querySelector('.block.list') as HTMLDivElement;
if (!listBlock) return;
if (!listBlock.hasAttribute('contenteditable')) {
listBlock.setAttribute('contenteditable', 'true');
}
listBlock.focus();
if (document.activeElement !== listBlock && element.shadowRoot?.activeElement !== listBlock) {
Promise.resolve().then(() => {
listBlock.focus();
});
}
}
focusWithCursor(element: HTMLElement, position: 'start' | 'end' | number = 'end', context?: any): void {
const listBlock = element.querySelector('.block.list') as HTMLDivElement;
if (!listBlock) return;
if (!listBlock.hasAttribute('contenteditable')) {
listBlock.setAttribute('contenteditable', 'true');
}
listBlock.focus();
const setCursor = () => {
if (position === 'start') {
this.setCursorToStart(element, context);
} else if (position === 'end') {
this.setCursorToEnd(element, context);
} else if (typeof position === 'number') {
// For numeric positions in lists, we need custom logic
// This is complex due to list structure, so default to end
this.setCursorToEnd(element, context);
}
};
if (document.activeElement === listBlock || element.shadowRoot?.activeElement === listBlock) {
setCursor();
} else {
Promise.resolve().then(() => {
if (document.activeElement === listBlock || element.shadowRoot?.activeElement === listBlock) {
setCursor();
}
});
}
}
getSplitContent(element: HTMLElement, context?: any): { before: string; after: string } | null {
const listBlock = element.querySelector('.block.list') as HTMLDivElement;
if (!listBlock) return null;
// For lists, we don't split content - instead let the keyboard handler
// create a new paragraph block when Enter is pressed on empty list item
return null;
}
}

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import { BaseBlockHandler, type IBlockEventHandlers } from '../block.base.js';
import type { IBlock } from '../../wysiwyg.types.js';
import { cssManager } from '@design.estate/dees-element';
import { WysiwygBlocks } from '../../wysiwyg.blocks.js';
import { WysiwygSelection } from '../../wysiwyg.selection.js';
export class ParagraphBlockHandler extends BaseBlockHandler {
type = 'paragraph';
// Track cursor position
private lastKnownCursorPosition: number = 0;
private lastSelectedText: string = '';
private selectionHandler: (() => void) | null = null;
render(block: IBlock, isSelected: boolean): string {
const selectedClass = isSelected ? ' selected' : '';
const placeholder = this.getPlaceholder();
return `
<div
class="block paragraph${selectedClass}"
contenteditable="true"
data-placeholder="${placeholder}"
data-block-id="${block.id}"
data-block-type="${block.type}"
></div>
`;
}
setup(element: HTMLElement, block: IBlock, handlers: IBlockEventHandlers): void {
const paragraphBlock = element.querySelector('.block.paragraph') as HTMLDivElement;
if (!paragraphBlock) {
console.error('ParagraphBlockHandler.setup: No paragraph block element found');
return;
}
// Set initial content if needed
if (block.content && !paragraphBlock.innerHTML) {
paragraphBlock.innerHTML = block.content;
}
// Input handler with cursor tracking
paragraphBlock.addEventListener('input', (e) => {
handlers.onInput(e as InputEvent);
// Track cursor position after input
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
});
// Keydown handler with cursor tracking
paragraphBlock.addEventListener('keydown', (e) => {
// Track cursor position before keydown
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
handlers.onKeyDown(e);
});
// Focus handler
paragraphBlock.addEventListener('focus', () => {
handlers.onFocus();
});
// Blur handler
paragraphBlock.addEventListener('blur', () => {
handlers.onBlur();
});
// Composition handlers for IME support
paragraphBlock.addEventListener('compositionstart', () => {
handlers.onCompositionStart();
});
paragraphBlock.addEventListener('compositionend', () => {
handlers.onCompositionEnd();
});
// Mouse up handler
paragraphBlock.addEventListener('mouseup', (e) => {
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
// Selection will be handled by selectionchange event
handlers.onMouseUp?.(e);
});
// Click handler with delayed cursor tracking
paragraphBlock.addEventListener('click', (e: MouseEvent) => {
// Small delay to let browser set cursor position
setTimeout(() => {
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
}, 0);
});
// Keyup handler for additional cursor tracking
paragraphBlock.addEventListener('keyup', (e) => {
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
});
// Set up selection change handler
this.setupSelectionHandler(element, paragraphBlock, block);
}
private setupSelectionHandler(element: HTMLElement, paragraphBlock: HTMLDivElement, block: IBlock): void {
// Add selection change handler
const checkSelection = () => {
const selection = window.getSelection();
if (!selection || selection.rangeCount === 0) return;
const selectedText = selection.toString();
if (selectedText.length === 0) {
// Clear selection if no text
if (this.lastSelectedText) {
this.lastSelectedText = '';
this.dispatchSelectionEvent(element, {
text: '',
blockId: block.id,
hasSelection: false
});
}
return;
}
// Get parent wysiwyg component's shadow root - traverse from shadow root
const wysiwygBlock = (paragraphBlock.getRootNode() as ShadowRoot).host as any;
const parentComponent = wysiwygBlock?.closest('dees-input-wysiwyg');
const parentShadowRoot = parentComponent?.shadowRoot;
const blockShadowRoot = wysiwygBlock?.shadowRoot;
// Use getComposedRanges with shadow roots as per MDN docs
const shadowRoots: ShadowRoot[] = [];
if (parentShadowRoot) shadowRoots.push(parentShadowRoot);
if (blockShadowRoot) shadowRoots.push(blockShadowRoot);
// Get selection info using our Shadow DOM-aware utility
const selectionInfo = WysiwygSelection.getSelectionInfo(...shadowRoots);
if (!selectionInfo) return;
// Check if selection is within this block
const startInBlock = WysiwygSelection.containsAcrossShadowDOM(paragraphBlock, selectionInfo.startContainer);
const endInBlock = WysiwygSelection.containsAcrossShadowDOM(paragraphBlock, selectionInfo.endContainer);
if (startInBlock || endInBlock) {
if (selectedText !== this.lastSelectedText) {
this.lastSelectedText = selectedText;
// Create range and get rect
const range = WysiwygSelection.createRangeFromInfo(selectionInfo);
const rect = range.getBoundingClientRect();
// Dispatch event
this.dispatchSelectionEvent(element, {
text: selectedText.trim(),
blockId: block.id,
range: range,
rect: rect,
hasSelection: true
});
}
} else if (this.lastSelectedText) {
// Clear selection if no longer in this block
this.lastSelectedText = '';
this.dispatchSelectionEvent(element, {
text: '',
blockId: block.id,
hasSelection: false
});
}
};
// Listen for selection changes
document.addEventListener('selectionchange', checkSelection);
// Store the handler for cleanup
this.selectionHandler = checkSelection;
// Clean up on disconnect (will be called by dees-wysiwyg-block)
const wysiwygBlock = element.closest('dees-wysiwyg-block');
if (wysiwygBlock) {
const originalDisconnectedCallback = (wysiwygBlock as any).disconnectedCallback;
(wysiwygBlock as any).disconnectedCallback = async function() {
if (this.selectionHandler) {
document.removeEventListener('selectionchange', this.selectionHandler);
this.selectionHandler = null;
}
if (originalDisconnectedCallback) {
await originalDisconnectedCallback.call(wysiwygBlock);
}
}.bind(this);
}
}
private dispatchSelectionEvent(element: HTMLElement, detail: any): void {
const event = new CustomEvent('block-text-selected', {
detail,
bubbles: true,
composed: true
});
element.dispatchEvent(event);
}
getStyles(): string {
return `
/* Paragraph specific styles */
.block.paragraph {
font-size: 16px;
line-height: 1.6;
font-weight: 400;
}
`;
}
getPlaceholder(): string {
return "Type '/' for commands...";
}
/**
* Helper to get the last text node in an element
*/
private getLastTextNode(element: Node): Text | null {
if (element.nodeType === Node.TEXT_NODE) {
return element as Text;
}
for (let i = element.childNodes.length - 1; i >= 0; i--) {
const lastText = this.getLastTextNode(element.childNodes[i]);
if (lastText) return lastText;
}
return null;
}
// Helper methods for paragraph functionality
getCursorPosition(element: HTMLElement, context?: any): number | null {
// Get the actual paragraph element
const paragraphBlock = element.querySelector('.block.paragraph') as HTMLDivElement;
if (!paragraphBlock) {
return null;
}
// Get shadow roots from context
const wysiwygBlock = context?.component;
const parentComponent = wysiwygBlock?.closest('dees-input-wysiwyg');
const parentShadowRoot = parentComponent?.shadowRoot;
const blockShadowRoot = context?.shadowRoot;
// Get selection info with both shadow roots for proper traversal
const shadowRoots: ShadowRoot[] = [];
if (parentShadowRoot) shadowRoots.push(parentShadowRoot);
if (blockShadowRoot) shadowRoots.push(blockShadowRoot);
const selectionInfo = WysiwygSelection.getSelectionInfo(...shadowRoots);
if (!selectionInfo) {
return null;
}
if (!WysiwygSelection.containsAcrossShadowDOM(paragraphBlock, selectionInfo.startContainer)) {
return null;
}
// Create a range from start of element to cursor position
const preCaretRange = document.createRange();
preCaretRange.selectNodeContents(paragraphBlock);
preCaretRange.setEnd(selectionInfo.startContainer, selectionInfo.startOffset);
// Get the text content length up to cursor
const position = preCaretRange.toString().length;
return position;
}
getContent(element: HTMLElement, context?: any): string {
const paragraphBlock = element.querySelector('.block.paragraph') as HTMLDivElement;
if (!paragraphBlock) return '';
// For paragraphs, get the innerHTML which includes formatting tags
const content = paragraphBlock.innerHTML || '';
return content;
}
setContent(element: HTMLElement, content: string, context?: any): void {
const paragraphBlock = element.querySelector('.block.paragraph') as HTMLDivElement;
if (!paragraphBlock) return;
// Store if we have focus
const hadFocus = document.activeElement === paragraphBlock ||
element.shadowRoot?.activeElement === paragraphBlock;
paragraphBlock.innerHTML = content;
// Restore focus if we had it
if (hadFocus) {
paragraphBlock.focus();
}
}
setCursorToStart(element: HTMLElement, context?: any): void {
const paragraphBlock = element.querySelector('.block.paragraph') as HTMLDivElement;
if (paragraphBlock) {
WysiwygBlocks.setCursorToStart(paragraphBlock);
}
}
setCursorToEnd(element: HTMLElement, context?: any): void {
const paragraphBlock = element.querySelector('.block.paragraph') as HTMLDivElement;
if (paragraphBlock) {
WysiwygBlocks.setCursorToEnd(paragraphBlock);
}
}
focus(element: HTMLElement, context?: any): void {
const paragraphBlock = element.querySelector('.block.paragraph') as HTMLDivElement;
if (!paragraphBlock) return;
// Ensure the element is focusable
if (!paragraphBlock.hasAttribute('contenteditable')) {
paragraphBlock.setAttribute('contenteditable', 'true');
}
paragraphBlock.focus();
// If focus failed, try again after a microtask
if (document.activeElement !== paragraphBlock && element.shadowRoot?.activeElement !== paragraphBlock) {
Promise.resolve().then(() => {
paragraphBlock.focus();
});
}
}
focusWithCursor(element: HTMLElement, position: 'start' | 'end' | number = 'end', context?: any): void {
const paragraphBlock = element.querySelector('.block.paragraph') as HTMLDivElement;
if (!paragraphBlock) return;
// Ensure element is focusable first
if (!paragraphBlock.hasAttribute('contenteditable')) {
paragraphBlock.setAttribute('contenteditable', 'true');
}
// For 'end' position, we need to set up selection before focus to prevent browser default
if (position === 'end' && paragraphBlock.textContent && paragraphBlock.textContent.length > 0) {
// Set up the selection first
const sel = window.getSelection();
if (sel) {
const range = document.createRange();
const lastNode = this.getLastTextNode(paragraphBlock) || paragraphBlock;
if (lastNode.nodeType === Node.TEXT_NODE) {
range.setStart(lastNode, lastNode.textContent?.length || 0);
range.setEnd(lastNode, lastNode.textContent?.length || 0);
} else {
range.selectNodeContents(lastNode);
range.collapse(false);
}
sel.removeAllRanges();
sel.addRange(range);
}
}
// Now focus the element
paragraphBlock.focus();
// Set cursor position after focus is established (for non-end positions)
const setCursor = () => {
if (position === 'start') {
this.setCursorToStart(element, context);
} else if (position === 'end' && (!paragraphBlock.textContent || paragraphBlock.textContent.length === 0)) {
// Only call setCursorToEnd for empty blocks
this.setCursorToEnd(element, context);
} else if (typeof position === 'number') {
// Use the selection utility to set cursor position
WysiwygSelection.setCursorPosition(paragraphBlock, position);
}
};
// Ensure cursor is set after focus
if (document.activeElement === paragraphBlock || element.shadowRoot?.activeElement === paragraphBlock) {
setCursor();
} else {
// Wait for focus to be established
Promise.resolve().then(() => {
if (document.activeElement === paragraphBlock || element.shadowRoot?.activeElement === paragraphBlock) {
setCursor();
} else {
// Try again with a small delay - sometimes focus needs more time
setTimeout(() => {
if (document.activeElement === paragraphBlock || element.shadowRoot?.activeElement === paragraphBlock) {
setCursor();
}
}, 10);
}
});
}
}
getSplitContent(element: HTMLElement, context?: any): { before: string; after: string } | null {
const paragraphBlock = element.querySelector('.block.paragraph') as HTMLDivElement;
if (!paragraphBlock) {
return null;
}
// Get shadow roots from context
const wysiwygBlock = context?.component;
const parentComponent = wysiwygBlock?.closest('dees-input-wysiwyg');
const parentShadowRoot = parentComponent?.shadowRoot;
const blockShadowRoot = context?.shadowRoot;
// Get selection info with both shadow roots for proper traversal
const shadowRoots: ShadowRoot[] = [];
if (parentShadowRoot) shadowRoots.push(parentShadowRoot);
if (blockShadowRoot) shadowRoots.push(blockShadowRoot);
const selectionInfo = WysiwygSelection.getSelectionInfo(...shadowRoots);
if (!selectionInfo) {
// Try using last known cursor position
if (this.lastKnownCursorPosition !== null) {
const fullText = paragraphBlock.textContent || '';
const pos = Math.min(this.lastKnownCursorPosition, fullText.length);
return {
before: fullText.substring(0, pos),
after: fullText.substring(pos)
};
}
return null;
}
// Make sure the selection is within this block
if (!WysiwygSelection.containsAcrossShadowDOM(paragraphBlock, selectionInfo.startContainer)) {
// Try using last known cursor position
if (this.lastKnownCursorPosition !== null) {
const fullText = paragraphBlock.textContent || '';
const pos = Math.min(this.lastKnownCursorPosition, fullText.length);
return {
before: fullText.substring(0, pos),
after: fullText.substring(pos)
};
}
return null;
}
// Get cursor position first
const cursorPos = this.getCursorPosition(element, context);
if (cursorPos === null || cursorPos === 0) {
// If cursor is at start or can't determine position, move all content
return {
before: '',
after: paragraphBlock.innerHTML
};
}
// For HTML content, split using ranges to preserve formatting
const beforeRange = document.createRange();
const afterRange = document.createRange();
// Before range: from start of element to cursor
beforeRange.setStart(paragraphBlock, 0);
beforeRange.setEnd(selectionInfo.startContainer, selectionInfo.startOffset);
// After range: from cursor to end of element
afterRange.setStart(selectionInfo.startContainer, selectionInfo.startOffset);
afterRange.setEnd(paragraphBlock, paragraphBlock.childNodes.length);
// Extract HTML content
const beforeFragment = beforeRange.cloneContents();
const afterFragment = afterRange.cloneContents();
// Convert to HTML strings
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
};
}
}

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import { BaseBlockHandler, type IBlockEventHandlers } from '../block.base.js';
import type { IBlock } from '../../wysiwyg.types.js';
import { cssManager } from '@design.estate/dees-element';
import { WysiwygBlocks } from '../../wysiwyg.blocks.js';
import { WysiwygSelection } from '../../wysiwyg.selection.js';
export class QuoteBlockHandler extends BaseBlockHandler {
type = 'quote';
// Track cursor position
private lastKnownCursorPosition: number = 0;
private lastSelectedText: string = '';
private selectionHandler: (() => void) | null = null;
render(block: IBlock, isSelected: boolean): string {
const selectedClass = isSelected ? ' selected' : '';
const placeholder = this.getPlaceholder();
return `
<div
class="block quote${selectedClass}"
contenteditable="true"
data-placeholder="${placeholder}"
data-block-id="${block.id}"
data-block-type="${block.type}"
></div>
`;
}
setup(element: HTMLElement, block: IBlock, handlers: IBlockEventHandlers): void {
const quoteBlock = element.querySelector('.block.quote') as HTMLDivElement;
if (!quoteBlock) {
console.error('QuoteBlockHandler.setup: No quote block element found');
return;
}
// Set initial content if needed
if (block.content && !quoteBlock.innerHTML) {
quoteBlock.innerHTML = block.content;
}
// Input handler with cursor tracking
quoteBlock.addEventListener('input', (e) => {
handlers.onInput(e as InputEvent);
// Track cursor position after input
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
});
// Keydown handler with cursor tracking
quoteBlock.addEventListener('keydown', (e) => {
// Track cursor position before keydown
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
handlers.onKeyDown(e);
});
// Focus handler
quoteBlock.addEventListener('focus', () => {
handlers.onFocus();
});
// Blur handler
quoteBlock.addEventListener('blur', () => {
handlers.onBlur();
});
// Composition handlers for IME support
quoteBlock.addEventListener('compositionstart', () => {
handlers.onCompositionStart();
});
quoteBlock.addEventListener('compositionend', () => {
handlers.onCompositionEnd();
});
// Mouse up handler
quoteBlock.addEventListener('mouseup', (e) => {
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
// Selection will be handled by selectionchange event
handlers.onMouseUp?.(e);
});
// Click handler with delayed cursor tracking
quoteBlock.addEventListener('click', (e: MouseEvent) => {
// Small delay to let browser set cursor position
setTimeout(() => {
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
}, 0);
});
// Keyup handler for additional cursor tracking
quoteBlock.addEventListener('keyup', (e) => {
const pos = this.getCursorPosition(element);
if (pos !== null) {
this.lastKnownCursorPosition = pos;
}
});
// Set up selection change handler
this.setupSelectionHandler(element, quoteBlock, block);
}
private setupSelectionHandler(element: HTMLElement, quoteBlock: HTMLDivElement, block: IBlock): void {
// Add selection change handler
const checkSelection = () => {
const selection = window.getSelection();
if (!selection || selection.rangeCount === 0) return;
const selectedText = selection.toString();
if (selectedText.length === 0) {
// Clear selection if no text
if (this.lastSelectedText) {
this.lastSelectedText = '';
this.dispatchSelectionEvent(element, {
text: '',
blockId: block.id,
hasSelection: false
});
}
return;
}
// Get parent wysiwyg component's shadow root - traverse from shadow root
const wysiwygBlock = (quoteBlock.getRootNode() as ShadowRoot).host as any;
const parentComponent = wysiwygBlock?.closest('dees-input-wysiwyg');
const parentShadowRoot = parentComponent?.shadowRoot;
const blockShadowRoot = wysiwygBlock?.shadowRoot;
// Use getComposedRanges with shadow roots as per MDN docs
const shadowRoots: ShadowRoot[] = [];
if (parentShadowRoot) shadowRoots.push(parentShadowRoot);
if (blockShadowRoot) shadowRoots.push(blockShadowRoot);
// Get selection info using our Shadow DOM-aware utility
const selectionInfo = WysiwygSelection.getSelectionInfo(...shadowRoots);
if (!selectionInfo) return;
// Check if selection is within this block
const startInBlock = WysiwygSelection.containsAcrossShadowDOM(quoteBlock, selectionInfo.startContainer);
const endInBlock = WysiwygSelection.containsAcrossShadowDOM(quoteBlock, selectionInfo.endContainer);
if (startInBlock || endInBlock) {
if (selectedText !== this.lastSelectedText) {
this.lastSelectedText = selectedText;
// Create range and get rect
const range = WysiwygSelection.createRangeFromInfo(selectionInfo);
const rect = range.getBoundingClientRect();
// Dispatch event
this.dispatchSelectionEvent(element, {
text: selectedText.trim(),
blockId: block.id,
range: range,
rect: rect,
hasSelection: true
});
}
} else if (this.lastSelectedText) {
// Clear selection if no longer in this block
this.lastSelectedText = '';
this.dispatchSelectionEvent(element, {
text: '',
blockId: block.id,
hasSelection: false
});
}
};
// Listen for selection changes
document.addEventListener('selectionchange', checkSelection);
// Store the handler for cleanup
this.selectionHandler = checkSelection;
// Clean up on disconnect (will be called by dees-wysiwyg-block)
const wysiwygBlock = (quoteBlock.getRootNode() as ShadowRoot).host as any;
if (wysiwygBlock) {
const originalDisconnectedCallback = (wysiwygBlock as any).disconnectedCallback;
(wysiwygBlock as any).disconnectedCallback = async function() {
if (this.selectionHandler) {
document.removeEventListener('selectionchange', this.selectionHandler);
this.selectionHandler = null;
}
if (originalDisconnectedCallback) {
await originalDisconnectedCallback.call(wysiwygBlock);
}
}.bind(this);
}
}
private dispatchSelectionEvent(element: HTMLElement, detail: any): void {
const event = new CustomEvent('block-text-selected', {
detail,
bubbles: true,
composed: true
});
element.dispatchEvent(event);
}
getStyles(): string {
return `
/* Quote specific styles */
.block.quote {
border-left: 3px solid ${cssManager.bdTheme('#0066cc', '#4d94ff')};
padding-left: 20px;
color: ${cssManager.bdTheme('#555', '#b0b0b0')};
font-style: italic;
line-height: 1.6;
margin: 16px 0;
}
`;
}
getPlaceholder(): string {
return 'Add a quote...';
}
// Helper methods for quote functionality
getCursorPosition(element: HTMLElement, context?: any): number | null {
// Get the actual quote element
const quoteBlock = element.querySelector('.block.quote') as HTMLDivElement;
if (!quoteBlock) {
return null;
}
// Get shadow roots from context
const wysiwygBlock = context?.component;
const parentComponent = wysiwygBlock?.closest('dees-input-wysiwyg');
const parentShadowRoot = parentComponent?.shadowRoot;
const blockShadowRoot = context?.shadowRoot;
// Get selection info with both shadow roots for proper traversal
const shadowRoots: ShadowRoot[] = [];
if (parentShadowRoot) shadowRoots.push(parentShadowRoot);
if (blockShadowRoot) shadowRoots.push(blockShadowRoot);
const selectionInfo = WysiwygSelection.getSelectionInfo(...shadowRoots);
if (!selectionInfo) {
return null;
}
if (!WysiwygSelection.containsAcrossShadowDOM(quoteBlock, selectionInfo.startContainer)) {
return null;
}
// Create a range from start of element to cursor position
const preCaretRange = document.createRange();
preCaretRange.selectNodeContents(quoteBlock);
preCaretRange.setEnd(selectionInfo.startContainer, selectionInfo.startOffset);
// Get the text content length up to cursor
const position = preCaretRange.toString().length;
return position;
}
getContent(element: HTMLElement, context?: any): string {
const quoteBlock = element.querySelector('.block.quote') as HTMLDivElement;
if (!quoteBlock) return '';
// For quotes, get the innerHTML which includes formatting tags
const content = quoteBlock.innerHTML || '';
return content;
}
setContent(element: HTMLElement, content: string, context?: any): void {
const quoteBlock = element.querySelector('.block.quote') as HTMLDivElement;
if (!quoteBlock) return;
// Store if we have focus
const hadFocus = document.activeElement === quoteBlock ||
element.shadowRoot?.activeElement === quoteBlock;
quoteBlock.innerHTML = content;
// Restore focus if we had it
if (hadFocus) {
quoteBlock.focus();
}
}
setCursorToStart(element: HTMLElement, context?: any): void {
const quoteBlock = element.querySelector('.block.quote') as HTMLDivElement;
if (quoteBlock) {
WysiwygBlocks.setCursorToStart(quoteBlock);
}
}
setCursorToEnd(element: HTMLElement, context?: any): void {
const quoteBlock = element.querySelector('.block.quote') as HTMLDivElement;
if (quoteBlock) {
WysiwygBlocks.setCursorToEnd(quoteBlock);
}
}
focus(element: HTMLElement, context?: any): void {
const quoteBlock = element.querySelector('.block.quote') as HTMLDivElement;
if (!quoteBlock) return;
// Ensure the element is focusable
if (!quoteBlock.hasAttribute('contenteditable')) {
quoteBlock.setAttribute('contenteditable', 'true');
}
quoteBlock.focus();
// If focus failed, try again after a microtask
if (document.activeElement !== quoteBlock && element.shadowRoot?.activeElement !== quoteBlock) {
Promise.resolve().then(() => {
quoteBlock.focus();
});
}
}
focusWithCursor(element: HTMLElement, position: 'start' | 'end' | number = 'end', context?: any): void {
const quoteBlock = element.querySelector('.block.quote') as HTMLDivElement;
if (!quoteBlock) return;
// Ensure element is focusable first
if (!quoteBlock.hasAttribute('contenteditable')) {
quoteBlock.setAttribute('contenteditable', 'true');
}
// Focus the element
quoteBlock.focus();
// Set cursor position after focus is established
const setCursor = () => {
if (position === 'start') {
this.setCursorToStart(element, context);
} else if (position === 'end') {
this.setCursorToEnd(element, context);
} else if (typeof position === 'number') {
// Use the selection utility to set cursor position
WysiwygSelection.setCursorPosition(quoteBlock, position);
}
};
// Ensure cursor is set after focus
if (document.activeElement === quoteBlock || element.shadowRoot?.activeElement === quoteBlock) {
setCursor();
} else {
// Wait for focus to be established
Promise.resolve().then(() => {
if (document.activeElement === quoteBlock || element.shadowRoot?.activeElement === quoteBlock) {
setCursor();
}
});
}
}
getSplitContent(element: HTMLElement, context?: any): { before: string; after: string } | null {
const quoteBlock = element.querySelector('.block.quote') as HTMLDivElement;
if (!quoteBlock) {
return null;
}
// Get shadow roots from context
const wysiwygBlock = context?.component;
const parentComponent = wysiwygBlock?.closest('dees-input-wysiwyg');
const parentShadowRoot = parentComponent?.shadowRoot;
const blockShadowRoot = context?.shadowRoot;
// Get selection info with both shadow roots for proper traversal
const shadowRoots: ShadowRoot[] = [];
if (parentShadowRoot) shadowRoots.push(parentShadowRoot);
if (blockShadowRoot) shadowRoots.push(blockShadowRoot);
const selectionInfo = WysiwygSelection.getSelectionInfo(...shadowRoots);
if (!selectionInfo) {
// Try using last known cursor position
if (this.lastKnownCursorPosition !== null) {
const fullText = quoteBlock.textContent || '';
const pos = Math.min(this.lastKnownCursorPosition, fullText.length);
return {
before: fullText.substring(0, pos),
after: fullText.substring(pos)
};
}
return null;
}
// Make sure the selection is within this block
if (!WysiwygSelection.containsAcrossShadowDOM(quoteBlock, selectionInfo.startContainer)) {
// Try using last known cursor position
if (this.lastKnownCursorPosition !== null) {
const fullText = quoteBlock.textContent || '';
const pos = Math.min(this.lastKnownCursorPosition, fullText.length);
return {
before: fullText.substring(0, pos),
after: fullText.substring(pos)
};
}
return null;
}
// Get cursor position first
const cursorPos = this.getCursorPosition(element, context);
if (cursorPos === null || cursorPos === 0) {
// If cursor is at start or can't determine position, move all content
return {
before: '',
after: quoteBlock.innerHTML
};
}
// For HTML content, split using ranges to preserve formatting
const beforeRange = document.createRange();
const afterRange = document.createRange();
// Before range: from start of element to cursor
beforeRange.setStart(quoteBlock, 0);
beforeRange.setEnd(selectionInfo.startContainer, selectionInfo.startOffset);
// After range: from cursor to end of element
afterRange.setStart(selectionInfo.startContainer, selectionInfo.startOffset);
afterRange.setEnd(quoteBlock, quoteBlock.childNodes.length);
// Extract HTML content
const beforeFragment = beforeRange.cloneContents();
const afterFragment = afterRange.cloneContents();
// Convert to HTML strings
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
};
}
}