mesdan/sevk/ihrac/ek--osmani-mesdan.js

Latinî mesdan ile Osmanî metin yazmak için hazırlanmış bir alettir.

import { useLexicalComposerContext } from '@lexical/react/LexicalComposerContext';
import { $getSelection, $isRangeSelection, $isTextNode, COMMAND_PRIORITY_HIGH, KEY_DOWN_COMMAND } from 'lexical';
import { useEffect } from 'react';
import { harfLatinidenOsmaniye } from '../nuve/lexical/harf-latiniden-osmaniye';
import { silOsmaniHarfiBaşra, silOsmaniHarfiSonra } from '../nuve/lexical/sil-harf-metingerde';
export const OsmaniMesdanEki = () => {
    const [metinger] = useLexicalComposerContext();
    useEffect(() => {
        const removeKeyDownListener = metinger.registerCommand(KEY_DOWN_COMMAND, vaqa => {
            const { key: ca, shiftKey, altKey, metaKey, ctrlKey } = vaqa;
            if (ctrlKey || metaKey)
                return false; // ker ve fer çalışsın diye
            // ArrowDown, ArrowUp, ArrowRight, ArrowLeft
            // Enter, Delete, Home, PageUp, PageDown, End, Pause, Escape, AltGraph
            // F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12
            if (ca === 'Enter') {
                return false;
            }
            if (ca === 'Backspace') {
                silOsmaniHarfiBaşra(metinger, vaqa);
                return true;
            }
            if (ca === 'Delete') {
                silOsmaniHarfiSonra(metinger, vaqa);
                return true;
            }
            if (ca === 'ArrowLeft' || ca === 'ArrowRight') {
                vaqa.preventDefault();
                vaqa.stopPropagation();
                metinger.update(() => {
                    const selection = $getSelection();
                    if (!$isRangeSelection(selection) || !selection.isCollapsed())
                        return;
                    const backward = ca === 'ArrowRight';
                    const granularity = vaqa.ctrlKey ? 'word' : 'character';
                    selection.modify('move', backward, granularity);
                });
                return true;
            }
            if (ca === 'Home' || ca === 'End') {
                vaqa.preventDefault();
                vaqa.stopPropagation();
                metinger.update(() => {
                    const selection = $getSelection();
                    if (!$isRangeSelection(selection) || !selection.isCollapsed())
                        return;
                    const backward = ca === 'Home'; // Home → move to start of line
                    selection.modify('move', backward, 'lineboundary');
                });
                return true;
            }
            // Up and Down: let browser handle them
            if (ca === 'ArrowUp' || ca === 'ArrowDown') {
                return false;
            }
            // Bütün basılabilir karakterleri (harfler, rakamlar, noktalama işaretleri) yakala
            if (ca.length === 1) {
                vaqa.preventDefault();
                vaqa.stopPropagation();
                metinger.update(() => {
                    const selection = $getSelection();
                    if (!$isRangeSelection(selection))
                        return;
                    const anchor = selection.anchor;
                    const offset = anchor.offset;
                    const node = anchor.getNode();
                    const marMetin = node.getTextContent().slice(0, offset);
                    const marHarf = marMetin.slice(-1);
                    if (marHarf === 'ا' && ca.toLowerCase() === 'a') {
                        selection.deleteCharacter(true);
                        selection.insertText('آ'); // Medli Elif
                    }
                    else {
                        const osmanliHarf = harfLatinidenOsmaniye(ca, marHarf, shiftKey, altKey);
                        // Eğer yazdırılacak harf sadece harekelerden/işaretlerden ibaretse
                        const isaretRegex = /^[\u064B-\u0656\u0670]+$/;
                        if ($isTextNode(node) && isaretRegex.test(osmanliHarf)) {
                            // Öncesinde de hareke/işaret var mı baq
                            const match = marMetin.match(/[\u064B-\u0656\u0670]+$/);
                            if (match) {
                                const matchLength = match[0].length;
                                // Önceki harekeleri seç ve sil
                                selection.anchor.set(node.getKey(), offset - matchLength, 'text');
                                selection.focus.set(node.getKey(), offset, 'text');
                                selection.removeText();
                            }
                        }
                        selection.insertText(osmanliHarf);
                    }
                });
                return true;
            }
            return false;
        }, COMMAND_PRIORITY_HIGH);
        return () => {
            removeKeyDownListener();
        };
    }, [metinger]);
    return null;
};