mirror of
https://github.com/laurent22/joplin.git
synced 2024-12-03 08:35:29 +02:00
175 lines
4.9 KiB
JavaScript
175 lines
4.9 KiB
JavaScript
let browser_ = null;
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if (typeof browser !== 'undefined') {
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browser_ = browser;
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browserSupportsPromises_ = true;
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} else if (typeof chrome !== 'undefined') {
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browser_ = chrome;
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browserSupportsPromises_ = false;
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}
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let env_ = null;
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// Make this function global so that it can be accessed
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// from the popup too.
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// https://stackoverflow.com/questions/6323184/communication-between-background-page-and-popup-page-in-a-chrome-extension
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window.joplinEnv = function() {
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if (env_) return env_;
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const manifest = browser_.runtime.getManifest();
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env_ = manifest.name.indexOf('[DEV]') >= 0 ? 'dev' : 'prod';
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return env_;
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};
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async function browserCaptureVisibleTabs(windowId) {
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const options = {
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format: 'jpeg',
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// This is supposed to be the default quality, but in fact Firefox 82+
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// clearly uses a much lower quality, closer to 20 or 30, so we have to
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// set it here explicitely.
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// https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/extensionTypes/ImageDetails
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// https://discourse.joplinapp.org/t/clip-screenshot-image-quality/12302/4
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quality: 92,
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};
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if (browserSupportsPromises_) return browser_.tabs.captureVisibleTab(windowId, options);
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return new Promise((resolve) => {
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browser_.tabs.captureVisibleTab(windowId, options, (image) => {
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resolve(image);
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});
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});
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}
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async function browserGetZoom(tabId) {
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if (browserSupportsPromises_) return browser_.tabs.getZoom(tabId);
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return new Promise((resolve) => {
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browser_.tabs.getZoom(tabId, (zoom) => {
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resolve(zoom);
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});
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});
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}
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browser_.runtime.onInstalled.addListener(function() {
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if (window.joplinEnv() === 'dev') {
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browser_.browserAction.setIcon({
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path: 'icons/32-dev.png',
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});
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}
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});
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async function getImageSize(dataUrl) {
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return new Promise((resolve, reject) => {
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const image = new Image();
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image.onload = function() {
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resolve({ width: image.width, height: image.height });
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};
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image.onerror = function(event) {
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reject(event);
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};
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image.src = dataUrl;
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});
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}
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browser_.runtime.onMessage.addListener(async (command) => {
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if (command.name === 'screenshotArea') {
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const browserZoom = await browserGetZoom();
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// The dimensions of the image returned by Firefox are the regular ones,
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// while the one returned by Chrome depend on the screen pixel ratio. So
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// it would return a 600*400 image if the window dimensions are 300x200
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// and the screen pixel ratio is 2.
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//
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// Normally we could rely on window.devicePixelRatio to tell us that but
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// since Firefox and Chrome handle this differently, we need to
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// calculate the ratio ourselves. It's simply the image dimensions
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// divided by the window inner width.
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//
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// The crop rectangle is always in real pixels, so we need to multiply
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// it by the ratio we've calculated.
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const imageDataUrl = await browserCaptureVisibleTabs(null);
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const imageSize = await getImageSize(imageDataUrl);
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const imagePixelRatio = imageSize.width / command.content.windowInnerWidth;
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const content = Object.assign({}, command.content);
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content.image_data_url = imageDataUrl;
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if ('url' in content) content.source_url = content.url;
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const ratio = browserZoom * imagePixelRatio;
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const newArea = Object.assign({}, command.content.crop_rect);
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newArea.x *= ratio;
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newArea.y *= ratio;
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newArea.width *= ratio;
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newArea.height *= ratio;
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content.crop_rect = newArea;
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fetch(`${command.api_base_url}/notes?token=${encodeURIComponent(command.token)}`, {
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method: 'POST',
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headers: {
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'Accept': 'application/json',
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'Content-Type': 'application/json',
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},
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body: JSON.stringify(content),
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});
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}
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});
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async function getActiveTabs() {
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const options = { active: true, currentWindow: true };
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if (browserSupportsPromises_) return browser_.tabs.query(options);
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return new Promise((resolve) => {
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browser_.tabs.query(options, (tabs) => {
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resolve(tabs);
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});
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});
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}
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async function sendClipMessage(clipType) {
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const tabs = await getActiveTabs();
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if (!tabs || !tabs.length) {
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console.error('No active tabs');
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return;
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}
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const tabId = tabs[0].id;
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// send a message to the content script on the active tab (assuming it's there)
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const message = {
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shouldSendToJoplin: true,
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};
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switch (clipType) {
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case 'clipCompletePage':
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message.name = 'completePageHtml';
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message.preProcessFor = 'markdown';
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break;
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case 'clipCompletePageHtml':
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message.name = 'completePageHtml';
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message.preProcessFor = 'html';
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break;
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case 'clipSimplifiedPage':
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message.name = 'simplifiedPageHtml';
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break;
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case 'clipUrl':
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message.name = 'pageUrl';
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break;
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case 'clipSelection':
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message.name = 'selectedHtml';
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break;
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default:
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break;
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}
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if (message.name) {
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browser_.tabs.sendMessage(tabId, message);
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}
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}
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browser_.commands.onCommand.addListener(function(command) {
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// We could enumerate these twice, but since we're in here first,
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// why not save ourselves the trouble with this convention
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if (command.startsWith('clip')) {
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sendClipMessage(command);
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}
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});
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