mirror of https://github.com/gorhill/uBlock.git
Add 'View source...' entry in context menu
This new context menu entry will be available only when the advanced setting `filterAuthorMode` is set to `true`. See: https://github.com/gorhill/uBlock/wiki/Advanced-settings#filterauthormode The purpose is for filter list maintainers to easily access the source code of web pages when investigating filter issues, without having to necessarily go through the logger. Additionally an input field to enter URL directly has been added to the code viewer for convenience.
This commit is contained in:
Raymond Hill
parent
bed362d375
commit
e2dd008388
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@ -1217,6 +1217,10 @@
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"message": "Temporarily allow large media elements",
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"description": "A context menu entry, present when large media elements have been blocked on the current site"
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},
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"contextMenuViewSource": {
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"message": "View source…",
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"description": "A context menu entry, to view the source code of the target resource"
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},
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"shortcutCapturePlaceholder": {
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"message": "Type a shortcut",
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"description": "Placeholder string for input field used to capture a keyboard shortcut"
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@ -15,6 +15,10 @@
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</head>
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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="pastURLs"></div>
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</div>
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<div id="content" class="codeMirrorContainer codeMirrorBreakAll"></div>
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<script src="lib/codemirror/lib/codemirror.js"></script>
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@ -8,6 +8,43 @@ body {
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padding: 0;
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width: 100vw;
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}
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#header {
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background-color: var(--cm-gutter-surface);
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border-bottom: 1px solid var(--surface-1);
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padding: var(--default-gap-xsmall);
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position: relative;
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z-index: 1000000;
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}
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#header input[type="url"] {
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box-sizing: border-box;
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font-size: var(--font-size-smaller);
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width: 100%;
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}
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#header:focus-within #pastURLs {
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display: flex;
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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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display: none;
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flex-direction: column;
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font-size: var(--font-size-smaller);
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position: absolute;
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}
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#pastURLs > span {
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cursor: pointer;
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overflow: hidden;
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padding: 2px 4px;
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text-overflow: ellipsis;
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white-space: nowrap;
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width: 75vw;
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}
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#pastURLs > span.selected {
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font-weight: bold;
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}
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#pastURLs > span:hover {
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background-color: var(--surface-1);
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}
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#content {
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flex-grow: 1;
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}
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@ -29,42 +29,9 @@ import { dom, qs$ } from './dom.js';
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/******************************************************************************/
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(async ( ) => {
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const urlToTextMap = new Map();
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const params = new URLSearchParams(document.location.search);
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const url = params.get('url');
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const a = qs$('.cm-search-widget .sourceURL');
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dom.attr(a, 'href', url);
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dom.attr(a, 'title', url);
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const response = await fetch(url);
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const text = await response.text();
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let mime = response.headers.get('Content-Type') || '';
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mime = mime.replace(/\s*;.*$/, '').trim();
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let value = '';
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switch ( mime ) {
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case 'text/css':
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value = beautifier.css(text, { indent_size: 2 });
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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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value = beautifier.html(text, { indent_size: 2 });
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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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value = beautifier.js(text, { indent_size: 4 });
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break;
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case 'application/json':
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value = beautifier.js(text, { indent_size: 2 });
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break;
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default:
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value = text;
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break;
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}
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let fromURL = '';
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const cmEditor = new CodeMirror(qs$('#content'), {
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autofocus: true,
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@ -72,11 +39,9 @@ import { dom, qs$ } from './dom.js';
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lineNumbers: true,
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lineWrapping: true,
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matchBrackets: true,
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mode: mime,
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styleActiveLine: {
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nonEmpty: true,
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},
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value,
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});
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uBlockDashboard.patchCodeMirrorEditor(cmEditor);
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@ -118,18 +83,107 @@ import { dom, qs$ } from './dom.js';
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},
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});
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dom.on('#content', 'click', '.cm-href', ev => {
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const href = ev.target.textContent;
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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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const toURL = new URL(href, url);
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vAPI.messaging.send('codeViewer', {
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what: 'gotoURL',
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details: {
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url: `code-viewer.html?url=${encodeURIComponent(toURL.href)}`,
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select: true,
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},
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});
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response = await fetch(url);
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text = await response.text();
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} catch(reason) {
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return;
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}
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let mime = response.headers.get('Content-Type') || '';
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mime = mime.replace(/\s*;.*$/, '').trim();
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switch ( mime ) {
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case 'text/css':
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text = beautifier.css(text, { indent_size: 2 });
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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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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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break;
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case 'application/json':
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text = beautifier.js(text, { indent_size: 2 });
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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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const list = qs$('#pastURLs');
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let current;
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for ( let i = 0; i < list.children.length; i++ ) {
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const span = list.children[i];
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dom.cl.remove(span, 'selected');
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if ( span.textContent !== url ) { continue; }
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current = span;
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}
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if ( current === undefined ) {
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current = document.createElement('span');
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current.textContent = url;
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list.prepend(current);
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}
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dom.cl.add(current, 'selected');
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}
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/******************************************************************************/
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async function setURL(resourceURL) {
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const input = qs$('#header input[type="url"]');
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let to;
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try {
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to = new URL(resourceURL, fromURL || undefined);
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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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}
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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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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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cmEditor.focus();
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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('#pastURLs', 'mousedown', 'span', ev => {
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setURL(ev.target.textContent);
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});
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dom.on('#content', 'click', '.cm-href', ev => {
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setURL(ev.target.textContent);
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});
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})();
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@ -40,6 +40,14 @@ if ( vAPI.contextMenu === undefined ) {
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/******************************************************************************/
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const BLOCK_ELEMENT_BIT = 0b00001;
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const BLOCK_RESOURCE_BIT = 0b00010;
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const TEMP_ALLOW_LARGE_MEDIA_BIT = 0b00100;
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const SUBSCRIBE_TO_LIST_BIT = 0b01000;
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const VIEW_SOURCE_BIT = 0b10000;
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/******************************************************************************/
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const onBlockElement = function(details, tab) {
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if ( tab === undefined ) { return; }
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if ( /^https?:\/\//.test(tab.url) === false ) { return; }
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@ -112,6 +120,18 @@ const onTemporarilyAllowLargeMediaElements = function(details, tab) {
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/******************************************************************************/
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const onViewSource = function(details, tab) {
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if ( tab === undefined ) { return; }
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const url = details.linkUrl || details.frameUrl || details.pageUrl || '';
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if ( /^https?:\/\//.test(url) === false ) { return; }
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µb.openNewTab({
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url: `code-viewer.html?url=${self.encodeURIComponent(url)}`,
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select: true,
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});
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};
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/******************************************************************************/
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const onEntryClicked = function(details, tab) {
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if ( details.menuItemId === 'uBlock0-blockElement' ) {
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return onBlockElement(details, tab);
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@ -128,6 +148,9 @@ const onEntryClicked = function(details, tab) {
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if ( details.menuItemId === 'uBlock0-temporarilyAllowLargeMediaElements' ) {
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return onTemporarilyAllowLargeMediaElements(details, tab);
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}
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if ( details.menuItemId === 'uBlock0-viewSource' ) {
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return onViewSource(details, tab);
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}
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};
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/******************************************************************************/
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@ -162,7 +185,14 @@ const menuEntries = {
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title: i18n$('contextMenuTemporarilyAllowLargeMediaElements'),
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contexts: [ 'all' ],
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documentUrlPatterns: [ 'http://*/*', 'https://*/*' ],
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}
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},
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viewSource: {
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id: 'uBlock0-viewSource',
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title: i18n$('contextMenuViewSource'),
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contexts: [ 'page', 'frame', 'link' ],
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documentUrlPatterns: [ 'http://*/*', 'https://*/*' ],
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targetUrlPatterns: [ 'http://*/*', 'https://*/*' ],
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},
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};
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/******************************************************************************/
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@ -175,32 +205,38 @@ const update = function(tabId = undefined) {
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const pageStore = µb.pageStoreFromTabId(tabId);
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if ( pageStore && pageStore.getNetFilteringSwitch() ) {
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if ( pageStore.shouldApplySpecificCosmeticFilters(0) ) {
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newBits |= 0b0001;
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newBits |= BLOCK_ELEMENT_BIT;
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} else {
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newBits |= 0b0010;
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newBits |= BLOCK_RESOURCE_BIT;
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}
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if ( pageStore.largeMediaCount !== 0 ) {
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newBits |= 0b0100;
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newBits |= TEMP_ALLOW_LARGE_MEDIA_BIT;
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}
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}
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newBits |= 0b1000;
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newBits |= SUBSCRIBE_TO_LIST_BIT;
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}
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if ( µb.hiddenSettings.filterAuthorMode ) {
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newBits |= VIEW_SOURCE_BIT;
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}
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if ( newBits === currentBits ) { return; }
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currentBits = newBits;
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const usedEntries = [];
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if ( newBits & 0b0001 ) {
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if ( (newBits & BLOCK_ELEMENT_BIT) !== 0 ) {
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usedEntries.push(menuEntries.blockElement);
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usedEntries.push(menuEntries.blockElementInFrame);
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}
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if ( newBits & 0b0010 ) {
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if ( (newBits & BLOCK_RESOURCE_BIT) !== 0 ) {
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usedEntries.push(menuEntries.blockResource);
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}
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if ( newBits & 0b0100 ) {
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if ( (newBits & TEMP_ALLOW_LARGE_MEDIA_BIT) !== 0 ) {
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usedEntries.push(menuEntries.temporarilyAllowLargeMediaElements);
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}
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if ( newBits & 0b1000 ) {
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if ( (newBits & SUBSCRIBE_TO_LIST_BIT) !== 0 ) {
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usedEntries.push(menuEntries.subscribeToList);
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}
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if ( (newBits & VIEW_SOURCE_BIT) !== 0 ) {
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usedEntries.push(menuEntries.viewSource);
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}
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vAPI.contextMenu.setEntries(usedEntries, onEntryClicked);
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};
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