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libReplaceText

替换网页内文本, 达到本地化的目的

Version vom 17.10.2018. Aktuellste Version

Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.greatest.deepsurf.us/scripts/372862/637639/libReplaceText.js 

// ==UserScript==
// @name        libReplaceText
// @namespace   https://github.com/lzghzr/TampermonkeyJS
// @version     0.0.7
// @author      lzghzr
// @description 替换网页内文本, 达到本地化的目的
// @license     MIT
// @grant       none
// @run-at      document-start
// ==/UserScript==
class ReplaceText {
    constructor(i18n, mode = 'equal') {
        this.W = typeof unsafeWindow === 'undefined' ? window : unsafeWindow;
        this.done = new Set();
        this.alert = this.W.alert.bind(this.W);
        this.confirm = this.W.confirm.bind(this.W);
        this.prompt = this.W.prompt.bind(this.W);
        const i18nMap = new Map(i18n);
        const i18nArr = i18n.map(value => value[0]);
        if (mode === 'regexp') {
            this.textReplace = (text) => {
                if (i18nMap.has(text))
                    text = i18nMap.get(text);
                else {
                    const key = i18nArr.find(key => (key instanceof RegExp && text.match(key) !== null));
                    if (key !== undefined)
                        text = text.replace(key, i18nMap.get(key));
                }
                return text;
            };
        }
        else if (mode === 'match') {
            this.textReplace = (text) => {
                const key = i18nArr.find(key => (text.match(key) !== null));
                if (key !== undefined)
                    text = text.replace(key, i18nMap.get(key));
                return text;
            };
        }
        else {
            this.textReplace = (text) => {
                if (i18nMap.has(text))
                    text = i18nMap.get(text);
                return text;
            };
        }
        this.replaceAlert();
        this.replaceObserver();
    }
    replaceAlert() {
        this.W.alert = (message) => this.alert(this.textReplace(message));
        this.W.confirm = (message) => this.confirm(this.textReplace(message));
        this.W.prompt = (message, _default) => this.prompt(this.textReplace(message), _default);
    }
    replaceNode(node, self = false) {
        const list = this.getReplaceList(node, self);
        for (let index in list) {
            list[index].forEach(node => {
                if (this.done.has(node[index]))
                    return;
                const newText = this.textReplace(node[index]);
                if (node[index] !== newText) {
                    this.done.add(newText);
                    node[index] = newText;
                }
            });
        }
    }
    replaceObserver() {
        const bodyObserver = new MutationObserver(mutations => {
            mutations.forEach(mutation => {
                if (mutation.type === 'attributes' || mutation.type === 'characterData')
                    this.replaceNode(mutation.target, true);
                else if (mutation.type === 'childList') {
                    mutation.addedNodes.forEach(addedNode => this.replaceNode(addedNode));
                }
            });
        });
        document.addEventListener('readystatechange', () => {
            bodyObserver.observe(document.body, { attributes: true, characterData: true, childList: true, subtree: true });
            this.replaceNode(document.body);
        }, { capture: true, once: true });
    }
    getReplaceList(node, self = false) {
        const list = {
            data: new Set(),
            placeholder: new Set(),
            title: new Set(),
            value: new Set(),
        };
        const nodeList = self ? [node] : this.nodeForEach(node);
        nodeList.forEach(node => {
            if (node.parentElement instanceof HTMLScriptElement || node.parentElement instanceof HTMLStyleElement)
                return;
            if (node instanceof HTMLElement && node.title !== '')
                list.title.add(node);
            else if (node instanceof HTMLInputElement && ['button', 'reset', 'submit'].includes(node.type) && node.value !== '')
                list.value.add(node);
            else if (node instanceof HTMLInputElement || node instanceof HTMLTextAreaElement && node.placeholder !== '')
                list.placeholder.add(node);
            else if (node instanceof Text)
                list.data.add(node);
        });
        return list;
    }
    nodeForEach(node) {
        const list = [];
        list.push(node);
        if (node.hasChildNodes())
            node.childNodes.forEach(child => list.push(...this.nodeForEach(child)));
        return list;
    }
}