ngx-editor/fesm2020/ngx-editor-helpers.mjs

Rich Text Editor for angular using ProseMirror

import { InputRule } from 'prosemirror-inputrules';

const isMarkActive = (state, type) => {
    const { from, $from, to, empty } = state.selection;
    if (empty) {
        return Boolean(type.isInSet(state.storedMarks || $from.marks()));
    }
    return state.doc.rangeHasMark(from, to, type);
};

const findNodeType = (type, $from) => {
    for (let i = $from.depth; i > 0; i -= 1) {
        if ($from.node(i).type === type) {
            return $from.node(i).type;
        }
    }
    return null;
};
const isNodeActive = (state, type, attrs = {}) => {
    const { selection } = state;
    const { $from, to } = selection;
    const node = findNodeType(type, $from);
    if (!Object.entries(attrs).length || !node) {
        return Boolean(node);
    }
    return to <= $from.end() && $from.parent.hasMarkup(type, attrs);
};

const getSelectionMarks = (state) => {
    let marks = [];
    const { selection, storedMarks } = state;
    const { from, to, empty, $from } = selection;
    if (empty) {
        marks = storedMarks || $from.marks();
    }
    else {
        state.doc.nodesBetween(from, to, (node) => {
            marks = [...marks, ...node.marks];
        });
    }
    return marks;
};

const getSelectionNodes = (state) => {
    const nodes = [];
    const { selection: { from, to } } = state;
    state.doc.nodesBetween(from, to, (node) => {
        nodes.push(node);
    });
    return nodes;
};

// Ref: https://github.com/ProseMirror/prosemirror-commands/blob/master/src/commands.js
const markApplies = (doc, ranges, type) => {
    for (const range of ranges) {
        const { $from, $to } = range;
        let canApply = $from.depth === 0 ? doc.type.allowsMarkType(type) : false;
        doc.nodesBetween($from.pos, $to.pos, (node) => {
            if (canApply) {
                return false;
            }
            canApply = node.inlineContent && node.type.allowsMarkType(type);
            return true;
        });
        if (canApply) {
            return true;
        }
    }
    return false;
};

const markInputRule = (regexp, markType, attrs) => {
    return new InputRule(regexp, (state, match, start, end) => {
        const { tr } = state;
        const from = start;
        let to = end;
        if (match[2]) {
            const textStart = start + match[0].indexOf(match[2]);
            const textEnd = textStart + match[2].length;
            if (textEnd < end) {
                tr.delete(textEnd, end);
            }
            if (textStart > start) {
                tr.delete(start, textStart);
            }
            to = start + match[2].length;
        }
        return tr.addMark(from, to, markType.create(attrs));
    });
};

/**
 * Generated bundle index. Do not edit.
 */

export { getSelectionMarks, getSelectionNodes, isMarkActive, isNodeActive, markApplies, markInputRule };
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