f490c63632
Add manifest.json, sidepanel components, and scripts. Include project assets and documentation files. Remove placeholder blank file.
118 lines
3.7 KiB
JavaScript
118 lines
3.7 KiB
JavaScript
// Background service worker for Auto Cover Generator
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// 1. Native Click Behavior
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chrome.sidePanel.setPanelBehavior({ openPanelOnActionClick: true });
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const openTabs = new Set();
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// 2. Click Handler (Native behavior handles opening, we just manage content)
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// Note: chrome.action.onClicked is ignored when openPanelOnActionClick is true.
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// 3. Tab State Management
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// Monitor all tab changes to ensure correct panel is shown
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chrome.runtime.onInstalled.addListener(() => {
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initializeAllTabs();
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});
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chrome.runtime.onStartup.addListener(() => {
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initializeAllTabs();
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});
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async function initializeAllTabs() {
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const tabs = await chrome.tabs.query({});
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for (const tab of tabs) {
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await checkAndSetSidePanel(tab.id);
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}
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}
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// 4. Tab Activation / Isolation Logic
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chrome.tabs.onActivated.addListener(async (activeInfo) => {
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const tabId = activeInfo.tabId;
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await checkAndSetSidePanel(tabId);
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});
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chrome.tabs.onUpdated.addListener(async (tabId, changeInfo, tab) => {
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if (changeInfo.status === 'complete' || changeInfo.url) {
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await checkAndSetSidePanel(tabId);
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}
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});
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async function checkAndSetSidePanel(tabId) {
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try {
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const tab = await chrome.tabs.get(tabId);
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if (!tab) return; // Tab doesn't exist
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// If we don't have permission to see the URL, it's definitely not Gemini (since we have host_permissions for Gemini).
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// So undefined tab.url means "Restricted/Other Site".
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const isGemini = tab.url && tab.url.startsWith('https://gemini.google.com/');
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if (isGemini) {
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// Enable and set path for Gemini
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await chrome.sidePanel.setOptions({
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tabId: tabId,
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path: 'sidepanel/panel.html',
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enabled: true
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});
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} else {
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// Disable for all other sites - this CLOSES the panel if open
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// and ensures it stays closed when returning to the tab (until clicked manually)
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await chrome.sidePanel.setOptions({
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tabId: tabId,
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enabled: false
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});
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}
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} catch (e) {
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// Tab might be closed or we heavily failed access
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console.log('Cannot access tab or set panel', e);
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}
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}
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chrome.runtime.onInstalled.addListener(() => {
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chrome.sidePanel.setOptions({ enabled: false });
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});
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chrome.tabs.onRemoved.addListener((tabId) => {
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openTabs.delete(tabId);
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});
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// 4. Message Routing
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chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
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// Forward messages to content script
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if (message.action === 'generateCover' || message.action === 'removeObjectFromImage') {
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chrome.tabs.query({ active: true, currentWindow: true }, (tabs) => {
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if (tabs[0]) {
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chrome.tabs.sendMessage(tabs[0].id, message, (response) => {
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sendResponse(response);
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});
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}
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});
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return true;
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}
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if (message.action === 'downloadImage') {
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const url = message.url;
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const timestamp = new Date().toISOString().replace(/[:.]/g, '-');
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const filename = `gemini_gen_${timestamp}.png`;
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chrome.downloads.download({
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url: url,
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filename: filename,
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conflictAction: 'uniquify'
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}, (downloadId) => {
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if (chrome.runtime.lastError) {
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console.error('Download failed:', chrome.runtime.lastError);
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} else {
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console.log('Download started, ID:', downloadId);
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}
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});
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return;
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}
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if (message.action === 'generationError') {
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chrome.runtime.sendMessage(message).catch(() => { });
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}
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});
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console.log('Auto Cover Generator: Background Service Ready');
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