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libReplaceText

替换网页内文本, 达到本地化的目的

Version vom 10.10.2018. 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/372862/635703/libReplaceText.js 

// ==UserScript==
// @name        libReplaceText
// @namespace   https://github.com/lzghzr/TampermonkeyJS
// @version     0.0.6
// @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) {
        this.nodeForEach(node).forEach(textNode => {
            if (textNode.parentElement instanceof HTMLScriptElement || textNode.parentElement instanceof HTMLStyleElement)
                return;
            if (textNode instanceof Text) {
                const newText = this.textReplace(textNode.data);
                if (textNode.data !== newText) {
                    this.done.add(newText);
                    textNode.data = newText;
                }
            }
            else if (textNode instanceof HTMLInputElement && ['button', 'reset', 'submit'].includes(textNode.type)) {
                const newText = this.textReplace(textNode.value);
                if (textNode.value !== newText) {
                    this.done.add(newText);
                    textNode.value = newText;
                }
            }
            else if (typeof textNode.placeholder === 'string') {
                const newText = this.textReplace(textNode.placeholder);
                if (textNode.placeholder !== newText) {
                    this.done.add(newText);
                    textNode.placeholder = newText;
                }
            }
        });
    }
    replaceObserver() {
        const bodyObserver = new MutationObserver(mutations => {
            mutations.forEach(mutation => {
                if (mutation.type === 'attributes') {
                    const t = mutation.target;
                    if (t instanceof HTMLInputElement && ['button', 'reset', 'submit'].includes(t.type) && !this.done.has(t.value))
                        this.replaceNode(t);
                    else if (typeof t.placeholder === 'string' && !this.done.has(t.placeholder))
                        this.replaceNode(t);
                }
                else if (mutation.type === 'characterData') {
                    const t = mutation.target;
                    if (t instanceof Text && !this.done.has(t.data))
                        this.replaceNode(t);
                }
                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 });
    }
    nodeForEach(node) {
        const list = [];
        if (node.childNodes.length === 0)
            list.push(node);
        else {
            node.childNodes.forEach(child => {
                if (child.childNodes.length === 0)
                    list.push(child);
                else
                    list.push(...this.nodeForEach(child));
            });
        }
        return list;
    }
}