feat(editor): implement US-EDITOR-UX with global block selection, redesigned slash menu (favorites & preview), contextual placeholders, smart paste extended, turn into and undo/redo toasts
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60
memento-note/lib/editor/block-selection-extension.ts
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60
memento-note/lib/editor/block-selection-extension.ts
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import { Extension } from '@tiptap/core'
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import { Plugin, PluginKey, NodeSelection } from '@tiptap/pm/state'
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import { Decoration, DecorationSet } from '@tiptap/pm/view'
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/**
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* Extension ProseMirror/TipTap qui ajoute la classe CSS 'block-selected'
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* aux blocs de premier niveau inclus ou traversés par la sélection active.
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*/
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export const BlockSelectionExtension = Extension.create({
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name: 'blockSelection',
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addProseMirrorPlugins() {
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return [
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new Plugin({
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key: new PluginKey('blockSelection'),
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props: {
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decorations(state) {
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const { from, to, empty } = state.selection
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if (empty) return DecorationSet.empty
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const decorations: Decoration[] = []
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// Parcourir uniquement les nœuds de premier niveau (enfants directs de doc)
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state.doc.forEach((node, offset) => {
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const start = offset
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const end = offset + node.nodeSize
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// Vérifier si la plage de sélection [from, to] intersecte le bloc [start, end]
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const intersects = Math.max(start, from) < Math.min(end, to)
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if (intersects) {
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// Il faut s'assurer que c'est un nœud de bloc pour appliquer Decoration.node
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if (node.isBlock) {
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try {
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decorations.push(
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Decoration.node(start, end, {
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class: 'block-selected',
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})
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)
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} catch (e) {
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// Fallback en cas d'erreur sur des structures de nœuds particulières
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}
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}
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}
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})
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const isNodeSel = state.selection instanceof NodeSelection
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// Si la sélection s'étend sur plusieurs blocs ou si c'est une NodeSelection explicite,
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// on renvoie l'ensemble des décorations pour coloration visuelle.
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if (decorations.length > 1 || (decorations.length === 1 && isNodeSel)) {
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return DecorationSet.create(state.doc, decorations)
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}
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return DecorationSet.empty
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},
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},
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}),
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]
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},
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})
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