88 lines
2.8 KiB
JavaScript
88 lines
2.8 KiB
JavaScript
/* global CHROME FIREFOX URLS deepEqual ignoreChromeError */// toolbox.js
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/* global bgReady */// common.js
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/* global msg */
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'use strict';
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/* exported navMan */
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const navMan = (() => {
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const listeners = new Set();
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let prevData = {};
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chrome.webNavigation.onCommitted.addListener(onNavigation.bind('committed'));
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chrome.webNavigation.onHistoryStateUpdated.addListener(onFakeNavigation.bind('history'));
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chrome.webNavigation.onReferenceFragmentUpdated.addListener(onFakeNavigation.bind('hash'));
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return {
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/** @param {function(data: Object, type: ('committed'|'history'|'hash'))} fn */
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onUrlChange(fn) {
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listeners.add(fn);
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},
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};
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/** @this {string} type */
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async function onNavigation(data) {
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if (CHROME && data.timeStamp === prevData.timeStamp && deepEqual(data, prevData)) {
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return; // Chrome bug: listener is called twice with identical data
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}
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prevData = data;
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if (CHROME &&
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URLS.chromeProtectsNTP &&
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data.url.startsWith('https://www.google.') &&
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data.url.includes('/_/chrome/newtab?')) {
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// Modern Chrome switched to WebUI NTP so this is obsolete, but there may be exceptions
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// TODO: investigate, and maybe use a separate listener for CHROME <= ver
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const tab = await browser.tabs.get(data.tabId);
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const url = tab.pendingUrl || tab.url;
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if (url === 'chrome://newtab/') {
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data.url = url;
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}
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}
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listeners.forEach(fn => fn(data, this));
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}
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/** @this {string} type */
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function onFakeNavigation(data) {
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onNavigation.call(this, data);
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msg.sendTab(data.tabId, {method: 'urlChanged'}, {frameId: data.frameId})
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.catch(msg.ignoreError);
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}
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})();
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bgReady.all.then(() => {
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/*
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* Expose style version on greasyfork/sleazyfork 1) info page and 2) code page
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* Not using manifest.json as adding a content script disables the extension on update.
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*/
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const urlMatches = '/scripts/\\d+[^/]*(/code)?([?#].*)?$';
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chrome.webNavigation.onCommitted.addListener(({tabId}) => {
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chrome.tabs.executeScript(tabId, {
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file: '/content/install-hook-greasyfork.js',
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runAt: 'document_start',
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});
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}, {
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url: [
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{hostEquals: 'greasyfork.org', urlMatches},
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{hostEquals: 'sleazyfork.org', urlMatches},
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],
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});
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/*
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* FF misses some about:blank iframes so we inject our content script explicitly
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*/
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if (FIREFOX) {
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chrome.webNavigation.onDOMContentLoaded.addListener(async ({tabId, frameId}) => {
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if (frameId &&
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!await msg.sendTab(tabId, {method: 'ping'}, {frameId}).catch(ignoreChromeError)) {
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for (const file of chrome.runtime.getManifest().content_scripts[0].js) {
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chrome.tabs.executeScript(tabId, {
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frameId,
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file,
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matchAboutBlank: true,
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}, ignoreChromeError);
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}
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}
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}, {
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url: [{urlEquals: 'about:blank'}],
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});
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}
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});
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