feat: 初步开发一些特性
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143
components/pin-collector.ts
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143
components/pin-collector.ts
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/**
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* 花瓣网 Pin 收集器 —— 自动提取页面中所有 Pin 卡片信息
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*/
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export interface PinData {
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/** 相对路径,如 "/pins/7118240882" */
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url: string;
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/** 图片源地址 */
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imgSrc: string;
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/** 图片原始宽度 */
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imgWidth: number;
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/** 图片原始高度 */
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imgHeight: number;
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/** alt 原始文本 */
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alt: string;
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/** title 原始文本 */
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title: string;
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/** 提取的作者名 */
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author?: string;
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/** 提取的发布时间,如 "15小时" */
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time?: string;
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/** 提取的标签,不含 # 号 */
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tags: string[];
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}
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export class PinCollector {
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private pins: PinData[] = [];
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/**
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* 扫描当前文档,收集所有 Pin 数据
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* @returns 收集到的 Pin 数组
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*/
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collect(): PinData[] {
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this.pins = [];
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const anchors = document.querySelectorAll<HTMLAnchorElement>(
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'a.__7D5D_BHJ'
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);
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anchors.forEach((anchor) => {
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try {
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const pin = this.parsePin(anchor);
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if (pin) this.pins.push(pin);
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} catch (e) {
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console.warn('解析 Pin 失败', e);
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}
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});
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return this.pins;
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}
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/**
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* 获取最近一次收集的结果(不重新扫描)
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*/
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getPins(): PinData[] {
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return this.pins;
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}
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/**
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* 将收集到的 Pin 保存到 browser.storage.local
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* @param key 存储键名,默认 "collectedPins"
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*/
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async saveToStorage(key = 'collectedPins'): Promise<void> {
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await browser.storage.local.set({ [key]: this.pins });
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console.log(`已保存 ${this.pins.length} 个 Pin 到存储`);
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}
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/**
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* 从 browser.storage.local 加载之前保存的 Pin
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* @param key 存储键名
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* @returns 加载到的 Pin 数组
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*/
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async loadFromStorage(key = 'collectedPins'): Promise<PinData[]> {
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const result = await browser.storage.local.get(key);
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if (result[key]) {
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this.pins = result[key] as PinData[];
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}
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return this.pins;
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}
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/**
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* 解析单个 a 元素为 PinData
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*/
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private parsePin(anchor: HTMLAnchorElement): PinData | null {
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const href = anchor.getAttribute('href');
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if (!href) return null;
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const img = anchor.querySelector<HTMLImageElement>('img.hb-image');
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if (!img) return null;
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const altText = img.getAttribute('alt') || '';
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const titleText = img.getAttribute('title') || '';
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const fullText = altText || titleText;
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const parts = fullText
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.split('\n')
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.map((p) => p.trim())
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.filter(Boolean);
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// 解析作者和发布时间
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let author: string | undefined;
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let time: string | undefined;
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if (parts.length >= 1) {
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// 第一行格式通常为:作者名 @username
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const authorMatch = parts[0].match(/^(.+?)\s*@/);
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author = authorMatch ? authorMatch[1].trim() : parts[0];
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}
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if (parts.length >= 2 && parts[1].startsWith('·')) {
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time = parts[1].replace(/^·\s*/, '').trim();
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}
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// 提取标签 #xxx (支持中文)
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const tags: string[] = [];
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const tagRegex = /#([\w\u4e00-\u9fff]+)/g;
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let match;
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while ((match = tagRegex.exec(fullText)) !== null) {
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tags.push(match[1]);
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}
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const width = parseFloat(img.getAttribute('width') || '0');
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const height = parseFloat(img.getAttribute('height') || '0');
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return {
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url: href,
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imgSrc: img.src,
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imgWidth: width,
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imgHeight: height,
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alt: altText,
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title: titleText,
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author,
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time,
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tags,
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};
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}
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}
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/**
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* 快捷函数:直接返回当前页面的所有 Pin 数据
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*/
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export function collectPins(): PinData[] {
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const collector = new PinCollector();
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return collector.collect();
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}
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