ميدياويكي:Gadget-Numeral converter.js

/**
 * Numeral converter
 * forked from [[mw:MediaWiki:Gadget-Numerakri.js]]
 * maintainer حبيشان
 */
mw.loader.using(['mediawiki.util']).then(function () {
    'use strict';
    const skipclass = ['mwgadget-numconv-skip', 'mw-json'],
        we = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '%'],
        es = ['٠', '١', '٢', '٣', '٤', '٥', '٦', '٧', '٨', '٩', '٪'],
        rejectedTags = ['input', 'textarea', 'style', 'script', 'pre'];

    var walker;

	function hasAnyClass(element, classes) {
		let ret = false;
		for(let i=1; i<classes.length; i++) {
   			if (element.hasClass(classes[i])) {
				ret = true;
				break;
			}
		}	
		return ret;
	}

    /**
     * @param {HTMLElement|TextNode} node
     * @return {number} NodeFilter.FILTER_* constant
     */
    function filterNode(node) {
        if (node.nodeType === Node.TEXT_NODE) {
            return NodeFilter.FILTER_ACCEPT;
        }
        var n = node.nodeName && node.nodeName.toLowerCase();
        if ( rejectedTags.indexOf(n) > -1 ||
            // node.hasAttribute('contenteditable') ||
            hasAnyClass($(node), skipclass)
        ) {
            // Skip this element and skip its children
            return NodeFilter.FILTER_REJECT;
        }
        // Skip this element, but check its children
        return NodeFilter.FILTER_SKIP;
    }

    /**
     * @param {TextNode} node
     */
    function handleTextNode(node) {
        function we2es(text) {
            for (let i=0; i <= 10; i++) {
                text = text.replaceAll(we[i], es[i]);
            }
            return text
        }
    
        function es2we(text) {
            for (let i=0; i <= 10; i++) {
                text = text.replaceAll(es[i], we[i]);
            }
            return text
        }
        
        var original = node.nodeValue,
            changed = we2es(original);
        changed = changed.replaceAll(/([A-z]\s*)([٠-٩٪\-\.]+)/g, (match, p1, p2, offset, string) => p1 + es2we(p2));
        changed = changed.replaceAll(/([٠-٩٪\-\.]+)([A-z])/g, (match, p1, p2, offset, string) => es2we(p1) + p2);

        if (original !== changed) {
            node.nodeValue = changed;
        }
    }

    // https://doc.wikimedia.org/mediawiki-core/master/js/#!/api/mw-method-requestIdleCallback
    function idleWalker(deadline) {
        var el;
        if (!walker) {
            return;
        }
        while (deadline.timeRemaining() > 0) {
            el = walker.nextNode();
            if (!el) {
                // Reached the end
                walker = null;
                return;
            }
            handleTextNode(el);
        }

        // The user may interact with the page. We pause so the browser can process
        // interaction. The text handler will continue after that.
        if (walker) {
            mw.requestIdleCallback(idleWalker);
        }
    }

    function startPageConversion() {
        $('ol:lang(ar) li, ol.references, li.references').css('list-style-type', 'arabic-indic');
        // If a walker is already active, replace it.
        // If no walker is active yet, start it.
        if (!walker) {
            mw.requestIdleCallback(idleWalker);
        }
        walker = document.createTreeWalker(document.body, NodeFilter.SHOW_ALL, filterNode, false);
    }

    $(function () {
        mw.requestIdleCallback(startPageConversion);
    });
});