mirror of https://github.com/gorhill/uBlock.git
Improve code viewer convenience
- Retain cursor position, selection, undo history, etc. when swapping documents. - Add ability to remove a document from dropdown list
This commit is contained in:
Raymond Hill
parent
53be37955f
commit
6220c4d9d5
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@ -16,7 +16,10 @@
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<body class="loading">
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<div id="header">
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<div><input type="url" value="" spellcheck="false" autofocus="false"></div>
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<div id="currentURL">
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<input type="url" value="" spellcheck="false" autofocus="false">
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<span id="removeURL" class="fa-icon">trash-o</span>
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</div>
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<div id="pastURLs"></div>
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</div>
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<div id="content" class="codeMirrorContainer codeMirrorBreakAll"></div>
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@ -23,6 +23,16 @@ body {
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#header:focus-within #pastURLs {
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display: flex;
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}
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#currentURL {
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display: flex;
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gap: 0.5rem;
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}
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#currentURL > .fa-icon {
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padding: 0 0.5rem;
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}
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#currentURL > .fa-icon:hover {
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background-color: var(--surface-3);
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}
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#pastURLs {
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background-color: var(--surface-0);
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border: 1px solid var(--border-1);
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@ -30,9 +30,9 @@ import { getActualTheme } from './theme.js';
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/******************************************************************************/
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const urlToTextMap = new Map();
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const urlToDocMap = new Map();
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const params = new URLSearchParams(document.location.search);
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let fromURL = '';
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let currentURL = '';
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const cmEditor = new CodeMirror(qs$('#content'), {
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autofocus: true,
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@ -88,12 +88,11 @@ cmEditor.addOverlay({
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},
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});
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urlToDocMap.set('', cmEditor.getDoc());
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/******************************************************************************/
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async function fetchResource(url) {
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if ( urlToTextMap.has(url) ) {
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return urlToTextMap.get(url);
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}
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let response, text;
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try {
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response = await fetch(url);
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@ -103,34 +102,46 @@ async function fetchResource(url) {
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}
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let mime = response.headers.get('Content-Type') || '';
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mime = mime.replace(/\s*;.*$/, '').trim();
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const options = {
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'end_with_newline': true,
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'indent_size': 2,
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'html': {
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'js': {
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'indent_size': 4,
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},
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},
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'js': {
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'indent_size': 4,
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'preserve-newlines': true,
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},
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};
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switch ( mime ) {
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case 'text/css':
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text = beautifier.css(text, { indent_size: 2 });
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text = beautifier.css(text, options);
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break;
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case 'text/html':
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case 'application/xhtml+xml':
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case 'application/xml':
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case 'image/svg+xml':
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text = beautifier.html(text, { indent_size: 2 });
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text = beautifier.html(text, options);
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break;
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case 'text/javascript':
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case 'application/javascript':
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case 'application/x-javascript':
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text = beautifier.js(text, { indent_size: 4 });
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text = beautifier.js(text, options);
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break;
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case 'application/json':
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text = beautifier.js(text, { indent_size: 2 });
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text = beautifier.js(text, options);
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break;
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default:
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break;
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}
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urlToTextMap.set(url, { mime, text });
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return { mime, text };
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}
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/******************************************************************************/
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function updatePastURLs(url) {
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function addPastURLs(url) {
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const list = qs$('#pastURLs');
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let current;
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for ( let i = 0; i < list.children.length; i++ ) {
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@ -139,6 +150,7 @@ function updatePastURLs(url) {
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if ( span.textContent !== url ) { continue; }
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current = span;
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}
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if ( url === '' ) { return; }
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if ( current === undefined ) {
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current = document.createElement('span');
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current.textContent = url;
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@ -149,47 +161,92 @@ function updatePastURLs(url) {
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/******************************************************************************/
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function setInputURL(url) {
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const input = qs$('#header input[type="url"]');
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if ( url === input.value ) { return; }
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dom.attr(input, 'value', url);
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input.value = url;
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}
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/******************************************************************************/
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async function setURL(resourceURL) {
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// For convenience, remove potentially existing quotes around the URL
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if ( /^(["']).+\1$/.test(resourceURL) ) {
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resourceURL = resourceURL.slice(1, -1);
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}
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const input = qs$('#header input[type="url"]');
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let to;
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let afterURL;
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if ( resourceURL !== '' ) {
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try {
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to = new URL(resourceURL, fromURL || undefined);
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const url = new URL(resourceURL, currentURL || undefined);
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url.hash = '';
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afterURL = url.href;
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} catch(ex) {
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}
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if ( to === undefined ) { return; }
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if ( /^https?:\/\/./.test(to.href) === false ) { return; }
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if ( to.href === fromURL ) { return; }
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let r;
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try {
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r = await fetchResource(to.href);
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} catch(reason) {
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if ( afterURL === undefined ) { return; }
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} else {
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afterURL = '';
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}
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if ( r === undefined ) { return; }
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fromURL = to.href;
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dom.attr(input, 'value', to.href);
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input.value = to;
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if ( afterURL !== '' && /^https?:\/\/./.test(afterURL) === false ) {
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return;
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}
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if ( afterURL === currentURL ) {
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if ( afterURL !== resourceURL ) {
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setInputURL(afterURL);
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}
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return;
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}
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let afterDoc = urlToDocMap.get(afterURL);
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if ( afterDoc === undefined ) {
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const r = await fetchResource(afterURL) || { mime: '', text: '' };
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afterDoc = new CodeMirror.Doc(r.text, r.mime || '');
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}
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urlToDocMap.set(currentURL, cmEditor.swapDoc(afterDoc));
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currentURL = afterURL;
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setInputURL(afterURL);
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const a = qs$('.cm-search-widget .sourceURL');
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dom.attr(a, 'href', to);
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dom.attr(a, 'title', to);
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cmEditor.setOption('mode', r.mime || '');
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cmEditor.setValue(r.text);
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updatePastURLs(to.href);
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dom.attr(a, 'href', afterURL);
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dom.attr(a, 'title', afterURL);
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addPastURLs(afterURL);
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// For unknown reasons, calling focus() synchronously does not work...
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vAPI.setTimeout(( ) => { cmEditor.focus(); }, 1);
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}
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/******************************************************************************/
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function removeURL(url) {
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if ( url === '' ) { return; }
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const list = qs$('#pastURLs');
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let foundAt = -1;
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for ( let i = 0; i < list.children.length; i++ ) {
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const span = list.children[i];
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if ( span.textContent !== url ) { continue; }
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foundAt = i;
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}
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if ( foundAt === -1 ) { return; }
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list.children[foundAt].remove();
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if ( foundAt >= list.children.length ) {
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foundAt = list.children.length - 1;
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}
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const afterURL = foundAt !== -1
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? list.children[foundAt].textContent
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: '';
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setURL(afterURL);
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urlToDocMap.delete(url);
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}
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/******************************************************************************/
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setURL(params.get('url'));
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dom.on('#header input[type="url"]', 'change', ev => {
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setURL(ev.target.value);
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});
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dom.on('#removeURL', 'click', ( ) => {
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removeURL(qs$('#header input[type="url"]').value);
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});
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dom.on('#pastURLs', 'mousedown', 'span', ev => {
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setURL(ev.target.textContent);
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});
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