mirror of
https://github.com/gorhill/uBlock.git
synced 2024-11-10 01:02:08 +01:00
some refactoring of new DOM inspector code
This commit is contained in:
gorhill
parent
631443768f
commit
7d2855180c
8 changed files with 878 additions and 992 deletions
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@ -603,7 +603,7 @@ vAPI.messaging.onPortMessage = function(request, port) {
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return;
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}
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console.error('µBlock> messaging > unknown request: %o', request);
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console.error('uBlock> messaging > unknown request: %o', request);
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// Unhandled:
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// Need to callback anyways in case caller expected an answer, or
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@ -661,9 +661,26 @@ vAPI.messaging.broadcast = function(message) {
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/******************************************************************************/
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vAPI.messaging.send = function(tabId, channelName, message) {
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// "Auxiliary process": any process other than main process.
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//
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// Main process to auxiliary processes messaging. The approach is that of
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// smoke-signal messaging, so emitters have to be ready to deal with no
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// response at all (i.e. use timeout where needed).
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//
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// Mandatory:
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// - receiverTabId: Which tab to send the message.
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// No target tab id means sends to all tabs.
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// - receiverChannel: Which channel to send the message.
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//
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// Optional:
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// - senderTabId: From which tab the message originates.
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// - senderChannel: From which channel the message originates.
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// These optional fields are useful for the target, and may be used
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// to send back a response to the sender.
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vAPI.messaging.post = function(message) {
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var port;
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var chromiumTabId = toChromiumTabId(tabId);
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var chromiumTabId = toChromiumTabId(message.receiverTabId);
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for ( var portName in this.ports ) {
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if ( this.ports.hasOwnProperty(portName) === false ) {
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continue;
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@ -673,7 +690,7 @@ vAPI.messaging.send = function(tabId, channelName, message) {
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continue;
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}
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port.postMessage({
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channelName: channelName,
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channelName: message.receiverChannel,
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msg: message
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});
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if ( chromiumTabId !== 0 ) {
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@ -1239,10 +1239,30 @@ vAPI.messaging.setup = function(defaultHandler) {
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/******************************************************************************/
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vAPI.messaging.send = function(tabId, channelName, message) {
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var ffTabId = tabId || '';
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// "Auxiliary process": any process other than main process.
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//
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// Main process to auxiliary processes messaging. The approach is that of
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// smoke-signal messaging, so emitters have to be ready to deal with no
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// response at all (i.e. use timeout where needed).
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//
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// Mandatory:
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// - receiverTabId: Which tab to send the message.
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// No target tab id means sends to all tabs.
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// - receiverChannel: Which channel to send the message.
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//
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// Optional:
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// - senderTabId: From which tab the message originates.
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// - senderChannel: From which channel the message originates.
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// These optional fields are useful for the target, and may be used
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// to send back a response to the sender.
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vAPI.messaging.post = function(message) {
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var ffTabId = message.receiverTabId || '';
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var targetId = location.host + ':broadcast';
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var payload = JSON.stringify({ channelName: channelName, msg: message });
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var payload = JSON.stringify({
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channelName: message.receiverChannel,
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msg: message
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});
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if ( ffTabId === '' ) {
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this.globalMessageManager.broadcastAsyncMessage(targetId, payload);
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@ -133,80 +133,16 @@ var tabIdFromClassName = function(className) {
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(function domInspector() {
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// Don't bother if the browser is not modern enough.
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if ( typeof Map === undefined ) {
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if ( typeof Map === undefined || typeof WeakMap === undefined ) {
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return;
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}
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var enabled = false;
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var state = '';
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var fingerprint = '';
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var fingerprintTimer = null;
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var currentTabId = '';
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var inspectedTabId = '';
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var currentSelector = '';
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var showdomButton = uDom.nodeFromId('showdom');
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var inspector = uDom.nodeFromId('domInspector');
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var tabSelector = uDom.nodeFromId('pageSelector');
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var inlineElementTags = [
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'a', 'abbr', 'acronym',
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'b', 'bdo', 'big', 'br', 'button',
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'cite', 'code',
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'del', 'dfn',
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'em',
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'font',
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'i', 'img', 'input', 'ins',
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'kbd',
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'label',
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'map',
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'object',
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'q',
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'samp', 'select', 'small', 'span', 'strong', 'sub', 'sup',
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'textarea', 'tt',
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'u',
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'var'
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].reduce(function(p, c) {
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p[c] = true;
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return p;
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}, Object.create(null));
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var startTimer = function() {
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if ( fingerprintTimer === null ) {
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fingerprintTimer = vAPI.setTimeout(fetchFingerprint, 2000);
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}
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};
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var stopTimer = function() {
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if ( fingerprintTimer !== null ) {
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clearTimeout(fingerprintTimer);
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fingerprintTimer = null;
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}
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};
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var injectHighlighter = function(tabId) {
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if ( tabId === '' ) {
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return;
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}
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messager.send({
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what: 'scriptlet',
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tabId: tabId,
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scriptlet: 'dom-highlight'
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});
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};
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var removeHighlighter = function(tabId) {
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if ( tabId === '' ) {
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return;
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}
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messager.send({
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what: 'sendMessageTo',
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tabId: tabId,
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channelName: 'scriptlets',
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msg: {
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what: 'dom-highlight',
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action: 'shutdown'
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}
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});
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};
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var nodeFromDomEntry = function(entry) {
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var node;
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var li = document.createElement('li');
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@ -250,29 +186,6 @@ var tabIdFromClassName = function(className) {
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}
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};
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var expandIfBlockElement = function(node) {
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var ul = node.parentElement;
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if ( ul === null ) {
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return;
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}
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var li = ul.parentElement;
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if ( li === null ) {
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return;
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}
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if ( li.classList.contains('show') ) {
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return;
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}
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var tag = node.firstElementChild.textContent;
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var pos = tag.search(/[^a-z0-9]/);
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if ( pos !== -1 ) {
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tag = tag.slice(0, pos);
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}
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if ( inlineElementTags[tag] !== undefined ) {
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return;
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}
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li.classList.add('show');
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};
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var renderDOM = function(response) {
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var ul = document.createElement('ul');
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var lvl = 0;
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@ -314,9 +227,6 @@ var tabIdFromClassName = function(className) {
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removeAllChildren(inspector);
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inspector.appendChild(ul);
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// Check for change at regular interval.
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fingerprint = entries.length !== 0 ? entries[0].fp : '';
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};
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var selectorFromNode = function(node, nth) {
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@ -344,7 +254,7 @@ var tabIdFromClassName = function(className) {
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var onClick = function(ev) {
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ev.stopPropagation();
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if ( currentTabId === '' ) {
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if ( inspectedTabId === '' ) {
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return;
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}
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@ -366,12 +276,13 @@ var tabIdFromClassName = function(className) {
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if ( target.localName === 'code' ) {
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var original = target.classList.contains('filter') === false;
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messager.send({
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what: 'sendMessageTo',
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tabId: currentTabId,
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channelName: 'scriptlets',
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what: 'postMessageTo',
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senderTabId: null,
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senderChannel: 'logger-ui.js',
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receiverTabId: inspectedTabId,
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receiverChannel: 'dom-inspector.js',
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msg: {
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what: 'dom-highlight',
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action: 'toggleNodes',
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what: 'toggleNodes',
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original: original,
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target: original !== target.classList.toggle('off'),
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selector: selectorFromNode(target, original ? 1 : 2)
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@ -383,12 +294,13 @@ var tabIdFromClassName = function(className) {
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// Highlight and scrollto
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if ( target.localName === 'code' ) {
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messager.send({
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what: 'sendMessageTo',
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tabId: currentTabId,
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channelName: 'scriptlets',
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what: 'postMessageTo',
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senderTabId: null,
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senderChannel: 'logger-ui.js',
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receiverTabId: inspectedTabId,
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receiverChannel: 'dom-inspector.js',
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msg: {
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what: 'dom-highlight',
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action: 'highlight',
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what: 'highlight',
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selector: selectorFromNode(target),
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scrollTo: true
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}
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@ -404,12 +316,13 @@ var tabIdFromClassName = function(className) {
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var timerHandler = function() {
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mouseoverTimer = null;
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messager.send({
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what: 'sendMessageTo',
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tabId: currentTabId,
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channelName: 'scriptlets',
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what: 'postMessageTo',
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senderTabId: null,
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senderChannel: 'logger-ui.js',
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receiverTabId: inspectedTabId,
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receiverChannel: 'dom-inspector.js',
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msg: {
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what: 'dom-highlight',
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action: 'highlight',
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what: 'highlight',
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selector: selectorFromNode(mouseoverTarget),
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scrollTo: true
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}
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@ -417,6 +330,10 @@ var tabIdFromClassName = function(className) {
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};
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return function(ev) {
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if ( inspectedTabId === '' ) {
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return;
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}
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// Find closest `li`
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var target = ev.target;
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while ( target !== null ) {
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@ -435,115 +352,165 @@ var tabIdFromClassName = function(className) {
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};
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})();
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var onFingerprintFetched = function(response) {
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if ( state !== 'fetchingFingerprint' ) {
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return;
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var pollTimer = null;
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var fingerprint = null;
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var currentTabId = function() {
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if ( showdomButton.classList.contains('active') === false ) {
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return '';
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}
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state = '';
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fingerprintTimer = null;
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if ( !enabled ) {
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return;
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}
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if ( response === fingerprint ) {
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startTimer();
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return;
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}
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fingerprint = response || '';
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fetchDOM();
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var tabId = tabIdFromClassName(tabSelector.value) || '';
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return tabId !== 'bts' ? tabId : '';
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};
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var fetchFingerprint = function() {
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messager.send({
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what: 'scriptlet',
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tabId: currentTabId,
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scriptlet: 'dom-fingerprint'
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}, onFingerprintFetched);
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state = 'fetchingFingerprint';
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var cancelPollTimer = function() {
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if ( pollTimer !== null ) {
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clearTimeout(pollTimer);
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pollTimer = null;
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}
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};
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var onDOMFetched = function(response) {
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if ( state !== 'fetchingDOM' ) {
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if ( response === undefined || currentTabId() !== inspectedTabId ) {
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shutdownInspector(inspectedTabId);
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injectInspectorAsync(250);
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return;
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}
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state = '';
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if ( !enabled ) {
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if ( response.layout === 'NOCHANGE' ) {
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fetchDOMAsync();
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return;
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}
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if ( Array.isArray(response) && response.length !== 0 ) {
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renderDOM(response);
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injectHighlighter(currentTabId);
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} else {
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fingerprint = '';
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}
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startTimer();
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renderDOM(response.layout);
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fingerprint = response.fingerprint;
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fetchDOMAsync();
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};
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var fetchDOM = function() {
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if ( currentTabId === '' ) {
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removeAllChildren(inspector);
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startTimer();
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messager.send({
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what: 'postMessageTo',
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senderTabId: null,
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senderChannel: 'logger-ui.js',
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receiverTabId: inspectedTabId,
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receiverChannel: 'dom-inspector.js',
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msg: {
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what: 'domLayout',
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fingerprint: fingerprint
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}
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});
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pollTimer = vAPI.setTimeout(function() {
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pollTimer = null;
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onDOMFetched();
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}, 1001);
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};
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var fetchDOMAsync = function(delay) {
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if ( pollTimer !== null ) {
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return;
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}
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pollTimer = vAPI.setTimeout(function() {
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pollTimer = null;
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fetchDOM();
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}, delay || 1001);
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};
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var injectInspector = function() {
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var tabId = currentTabId();
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// No valid tab, go back
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if ( tabId === '' ) {
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injectInspectorAsync();
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return;
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}
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inspectedTabId = tabId;
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fingerprint = null;
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messager.send({
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what: 'scriptlet',
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tabId: currentTabId,
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scriptlet: 'dom-layout'
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}, onDOMFetched);
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state = 'fetchingDOM';
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tabId: tabId,
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scriptlet: 'dom-inspector'
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});
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fetchDOMAsync(250);
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};
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var injectInspectorAsync = function(delay) {
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if ( pollTimer !== null ) {
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return;
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}
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if ( showdomButton.classList.contains('active') === false ) {
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return;
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}
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pollTimer = vAPI.setTimeout(function() {
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pollTimer = null;
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injectInspector();
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}, delay || 1001);
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};
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var shutdownInspector = function(tabId) {
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messager.send({
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what: 'postMessageTo',
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senderTabId: null,
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senderChannel: 'logger-ui.js',
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receiverTabId: tabId,
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receiverChannel: 'dom-inspector.js',
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msg: { what: 'shutdown', }
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});
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removeAllChildren(inspector);
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cancelPollTimer();
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inspectedTabId = '';
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};
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var onTabIdChanged = function() {
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if ( !enabled ) {
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return;
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if ( inspectedTabId !== currentTabId() ) {
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shutdownInspector();
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injectInspectorAsync(250);
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}
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var previousTabId = currentTabId;
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var tabId = tabIdFromClassName(tabSelector.value) || '';
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currentTabId = tabId !== 'bts' && tabId !== '' ? tabId : '';
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if ( currentTabId !== previousTabId ) {
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removeHighlighter(previousTabId);
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};
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var onMessage = function(request) {
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var msg = request.what === 'postMessageTo' ? request.msg : request;
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switch ( msg.what ) {
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case 'domLayout':
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cancelPollTimer();
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onDOMFetched(msg);
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break;
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default:
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break;
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}
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if ( state === 'fetchingDOM' ) {
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return;
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}
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fetchDOM();
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};
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var toggleOn = function() {
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if ( enabled ) {
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return;
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}
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enabled = true;
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window.addEventListener('beforeunload', toggleOff);
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inspector.addEventListener('click', onClick, true);
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inspector.addEventListener('mouseover', onMouseOver, true);
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tabSelector.addEventListener('change', onTabIdChanged);
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onTabIdChanged();
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inspector.classList.add('enabled');
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messager.addListener(onMessage);
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injectInspector();
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};
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var toggleOff = function() {
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removeHighlighter(currentTabId);
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messager.removeListener(onMessage);
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cancelPollTimer();
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shutdownInspector();
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window.removeEventListener('beforeunload', toggleOff);
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inspector.removeEventListener('click', onClick, true);
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inspector.removeEventListener('mouseover', onMouseOver, true);
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tabSelector.removeEventListener('change', onTabIdChanged);
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removeAllChildren(inspector);
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stopTimer();
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currentTabId = currentSelector = fingerprint = '';
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enabled = false;
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currentSelector = inspectedTabId = '';
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inspector.classList.remove('enabled');
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};
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var toggle = function() {
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if ( uDom.nodeFromId('showdom').classList.toggle('active') ) {
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if ( showdomButton.classList.toggle('active') ) {
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toggleOn();
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} else {
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toggleOff();
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}
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};
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uDom('#showdom').on('click', toggle);
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showdomButton.addEventListener('click', toggle);
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})();
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/******************************************************************************/
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|
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|
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@ -141,6 +141,12 @@ var onMessage = function(request, sender, callback) {
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vAPI.tabs.open(request.details);
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break;
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// Passthrough for auxiliary script to auxiliary script messaging
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||||
case 'postMessageTo':
|
||||
request.senderTabId = tabId;
|
||||
vAPI.messaging.post(request);
|
||||
break;
|
||||
|
||||
case 'reloadTab':
|
||||
if ( vAPI.isBehindTheSceneTabId(request.tabId) === false ) {
|
||||
vAPI.tabs.reload(request.tabId);
|
||||
|
|
@ -158,10 +164,6 @@ var onMessage = function(request, sender, callback) {
|
|||
µb.selectFilterLists(request.switches);
|
||||
break;
|
||||
|
||||
case 'sendMessageTo':
|
||||
vAPI.messaging.send(request.tabId, request.channelName, request.msg);
|
||||
break;
|
||||
|
||||
case 'toggleHostnameSwitch':
|
||||
µb.toggleHostnameSwitch(request);
|
||||
break;
|
||||
|
|
|
|||
|
|
@ -1,66 +0,0 @@
|
|||
/*******************************************************************************
|
||||
|
||||
uBlock Origin - a browser extension to block requests.
|
||||
Copyright (C) 2015 Raymond Hill
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see {http://www.gnu.org/licenses/}.
|
||||
|
||||
Home: https://github.com/gorhill/uBlock
|
||||
*/
|
||||
|
||||
/* global vAPI, HTMLDocument */
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
(function() {
|
||||
|
||||
'use strict';
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
// https://github.com/gorhill/uBlock/issues/464
|
||||
if ( document instanceof HTMLDocument === false ) {
|
||||
return;
|
||||
}
|
||||
|
||||
// This can happen
|
||||
if ( typeof vAPI !== 'object' ) {
|
||||
return;
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
// Some kind of fingerprint for the DOM, without incurring too much overhead.
|
||||
|
||||
var url = window.location.href;
|
||||
var pos = url.indexOf('#');
|
||||
if ( pos !== -1 ) {
|
||||
url = url.slice(0, pos);
|
||||
}
|
||||
var fingerprint = url + '{' + document.getElementsByTagName('*').length.toString() + '}';
|
||||
|
||||
var localMessager = vAPI.messaging.channel('scriptlets');
|
||||
localMessager.send({
|
||||
what: 'scriptletResponse',
|
||||
scriptlet: 'dom-fingerprint',
|
||||
response: fingerprint
|
||||
}, function() {
|
||||
localMessager.close();
|
||||
});
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
})();
|
||||
|
||||
/******************************************************************************/
|
||||
|
|
@ -1,339 +0,0 @@
|
|||
/*******************************************************************************
|
||||
|
||||
uBlock Origin - a browser extension to block requests.
|
||||
Copyright (C) 2015 Raymond Hill
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see {http://www.gnu.org/licenses/}.
|
||||
|
||||
Home: https://github.com/gorhill/uBlock
|
||||
*/
|
||||
|
||||
/* global vAPI, HTMLDocument */
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
(function() {
|
||||
|
||||
'use strict';
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
// https://github.com/gorhill/uBlock/issues/464
|
||||
if ( document instanceof HTMLDocument === false ) {
|
||||
return;
|
||||
}
|
||||
|
||||
// This can happen
|
||||
if ( typeof vAPI !== 'object' ) {
|
||||
return;
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
if ( document.querySelector('iframe.dom-highlight.' + vAPI.sessionId) !== null ) {
|
||||
return;
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var localMessager = null;
|
||||
var svgOcean = null;
|
||||
var svgIslands = null;
|
||||
var svgRoot = null;
|
||||
var pickerRoot = null;
|
||||
var currentSelector = '';
|
||||
|
||||
var toggledNodes = new Map();
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var highlightElements = function(elems, scrollTo) {
|
||||
var wv = pickerRoot.contentWindow.innerWidth;
|
||||
var hv = pickerRoot.contentWindow.innerHeight;
|
||||
var ocean = ['M0 0h' + wv + 'v' + hv + 'h-' + wv, 'z'];
|
||||
var islands = [];
|
||||
var elem, rect, poly;
|
||||
var xl, xr, yt, yb, w, h, ws;
|
||||
var xlu = Number.MAX_VALUE, xru = 0, ytu = Number.MAX_VALUE, ybu = 0;
|
||||
|
||||
for ( var i = 0; i < elems.length; i++ ) {
|
||||
elem = elems[i];
|
||||
if ( elem === pickerRoot ) {
|
||||
continue;
|
||||
}
|
||||
if ( typeof elem.getBoundingClientRect !== 'function' ) {
|
||||
continue;
|
||||
}
|
||||
|
||||
rect = elem.getBoundingClientRect();
|
||||
xl = rect.left;
|
||||
xr = rect.right;
|
||||
w = rect.width;
|
||||
yt = rect.top;
|
||||
yb = rect.bottom;
|
||||
h = rect.height;
|
||||
|
||||
ws = w.toFixed(1);
|
||||
poly = 'M' + xl.toFixed(1) + ' ' + yt.toFixed(1) +
|
||||
'h' + ws +
|
||||
'v' + h.toFixed(1) +
|
||||
'h-' + ws +
|
||||
'z';
|
||||
ocean.push(poly);
|
||||
islands.push(poly);
|
||||
|
||||
if ( !scrollTo ) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if ( xl < xlu ) { xlu = xl; }
|
||||
if ( xr > xru ) { xru = xr; }
|
||||
if ( yt < ytu ) { ytu = yt; }
|
||||
if ( yb > ybu ) { ybu = yb; }
|
||||
}
|
||||
svgOcean.setAttribute('d', ocean.join(''));
|
||||
svgIslands.setAttribute('d', islands.join('') || 'M0 0');
|
||||
|
||||
if ( !scrollTo ) {
|
||||
return;
|
||||
}
|
||||
|
||||
// Highlighted area completely within viewport
|
||||
if ( xlu >= 0 && xru <= wv && ytu >= 0 && ybu <= hv ) {
|
||||
return;
|
||||
}
|
||||
|
||||
var dx = 0, dy = 0;
|
||||
|
||||
if ( xru > wv ) {
|
||||
dx = xru - wv;
|
||||
xlu -= dx;
|
||||
}
|
||||
if ( xlu < 0 ) {
|
||||
dx += xlu;
|
||||
}
|
||||
if ( ybu > hv ) {
|
||||
dy = ybu - hv;
|
||||
ytu -= dy;
|
||||
}
|
||||
if ( ytu < 0 ) {
|
||||
dy += ytu;
|
||||
}
|
||||
|
||||
if ( dx !== 0 || dy !== 0 ) {
|
||||
window.scrollBy(dx, dy);
|
||||
}
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var elementsFromSelector = function(filter) {
|
||||
var out = [];
|
||||
try {
|
||||
out = document.querySelectorAll(filter);
|
||||
} catch (ex) {
|
||||
}
|
||||
return out;
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var highlight = function(scrollTo) {
|
||||
var elements = elementsFromSelector(currentSelector);
|
||||
highlightElements(elements, scrollTo);
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var onScrolled = function() {
|
||||
highlight();
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
// original, target = what to do
|
||||
// any, any = restore saved display property
|
||||
// any, hidden = set display to `none`, remember original state
|
||||
// hidden, any = remove display property, don't remember original state
|
||||
// hidden, hidden = set display to `none`
|
||||
|
||||
var toggleNodes = function(selector, originalState, targetState) {
|
||||
var nodes = document.querySelectorAll(selector);
|
||||
var i = nodes.length;
|
||||
if ( i === 0 ) {
|
||||
return;
|
||||
}
|
||||
var node, value;
|
||||
while ( i-- ) {
|
||||
node = nodes[i];
|
||||
if ( originalState ) { // any, ?
|
||||
if ( targetState ) { // any, any
|
||||
value = toggledNodes.get(node);
|
||||
if ( value === undefined ) {
|
||||
continue;
|
||||
}
|
||||
if ( value !== null ) {
|
||||
node.style.removeProperty('display');
|
||||
} else {
|
||||
node.style.setProperty('display', value);
|
||||
}
|
||||
toggledNodes.delete(node);
|
||||
} else { // any, hidden
|
||||
toggledNodes.set(node, node.style.getPropertyValue('display') || null);
|
||||
node.style.setProperty('display', 'none');
|
||||
}
|
||||
} else { // hidden, ?
|
||||
if ( targetState ) { // hidden, any
|
||||
node.style.setProperty('display', 'initial', 'important');
|
||||
} else { // hidden, hidden
|
||||
node.style.setProperty('display', 'none', 'important');
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var resetToggledNodes = function() {
|
||||
// Chromium does not support destructuring as of v43.
|
||||
for ( var node of toggledNodes.keys() ) {
|
||||
value = toggledNodes.get(node);
|
||||
if ( value !== null ) {
|
||||
node.style.removeProperty('display');
|
||||
} else {
|
||||
node.style.setProperty('display', value);
|
||||
}
|
||||
}
|
||||
toggledNodes.clear();
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var shutdown = function() {
|
||||
resetToggledNodes();
|
||||
localMessager.removeListener(onMessage);
|
||||
localMessager.close();
|
||||
localMessager = null;
|
||||
window.removeEventListener('scroll', onScrolled, true);
|
||||
document.documentElement.removeChild(pickerRoot);
|
||||
pickerRoot = svgRoot = svgOcean = svgIslands = null;
|
||||
currentSelector = '';
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var onMessage = function(msg) {
|
||||
if ( msg.what !== 'dom-highlight' ) {
|
||||
return;
|
||||
}
|
||||
switch ( msg.action ) {
|
||||
case 'highlight':
|
||||
currentSelector = msg.selector;
|
||||
highlight(msg.scrollTo);
|
||||
break;
|
||||
|
||||
case 'toggleNodes':
|
||||
toggleNodes(msg.selector, msg.original, msg.target);
|
||||
currentSelector = msg.selector;
|
||||
highlight(true);
|
||||
break;
|
||||
|
||||
case 'shutdown':
|
||||
shutdown();
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
(function() {
|
||||
pickerRoot = document.createElement('iframe');
|
||||
pickerRoot.classList.add(vAPI.sessionId);
|
||||
pickerRoot.classList.add('dom-highlight');
|
||||
pickerRoot.style.cssText = [
|
||||
'background: transparent',
|
||||
'border: 0',
|
||||
'border-radius: 0',
|
||||
'box-shadow: none',
|
||||
'display: block',
|
||||
'height: 100%',
|
||||
'left: 0',
|
||||
'margin: 0',
|
||||
'opacity: 1',
|
||||
'position: fixed',
|
||||
'outline: 0',
|
||||
'padding: 0',
|
||||
'top: 0',
|
||||
'visibility: visible',
|
||||
'width: 100%',
|
||||
'z-index: 2147483647',
|
||||
''
|
||||
].join(' !important;\n');
|
||||
|
||||
pickerRoot.onload = function() {
|
||||
pickerRoot.onload = null;
|
||||
var pickerDoc = this.contentDocument;
|
||||
|
||||
var style = pickerDoc.createElement('style');
|
||||
style.textContent = [
|
||||
'body {',
|
||||
'background-color: transparent;',
|
||||
'cursor: crosshair;',
|
||||
'}',
|
||||
'svg {',
|
||||
'height: 100%;',
|
||||
'left: 0;',
|
||||
'position: fixed;',
|
||||
'top: 0;',
|
||||
'width: 100%;',
|
||||
'}',
|
||||
'svg > path:first-child {',
|
||||
'fill: rgba(0,0,0,0.75);',
|
||||
'fill-rule: evenodd;',
|
||||
'}',
|
||||
'svg > path + path {',
|
||||
'fill: rgba(0,0,255,0.1);',
|
||||
'stroke: #FFF;',
|
||||
'stroke-width: 0.5px;',
|
||||
'}',
|
||||
''
|
||||
].join('\n');
|
||||
pickerDoc.body.appendChild(style);
|
||||
|
||||
svgRoot = pickerDoc.createElementNS('http://www.w3.org/2000/svg', 'svg');
|
||||
svgOcean = pickerDoc.createElementNS('http://www.w3.org/2000/svg', 'path');
|
||||
svgRoot.appendChild(svgOcean);
|
||||
svgIslands = pickerDoc.createElementNS('http://www.w3.org/2000/svg', 'path');
|
||||
svgRoot.appendChild(svgIslands);
|
||||
pickerDoc.body.appendChild(svgRoot);
|
||||
|
||||
window.addEventListener('scroll', onScrolled, true);
|
||||
|
||||
localMessager = vAPI.messaging.channel('scriptlets');
|
||||
localMessager.addListener(onMessage);
|
||||
|
||||
highlight();
|
||||
};
|
||||
|
||||
document.documentElement.appendChild(pickerRoot);
|
||||
})();
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
})();
|
||||
|
||||
/******************************************************************************/
|
||||
691
src/js/scriptlets/dom-inspector.js
Normal file
691
src/js/scriptlets/dom-inspector.js
Normal file
|
|
@ -0,0 +1,691 @@
|
|||
/*******************************************************************************
|
||||
|
||||
uBlock Origin - a browser extension to block requests.
|
||||
Copyright (C) 2015 Raymond Hill
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see {http://www.gnu.org/licenses/}.
|
||||
|
||||
Home: https://github.com/gorhill/uBlock
|
||||
*/
|
||||
|
||||
/* global vAPI, HTMLDocument */
|
||||
|
||||
/******************************************************************************/
|
||||
/******************************************************************************/
|
||||
|
||||
(function() {
|
||||
|
||||
'use strict';
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
// https://github.com/gorhill/uBlock/issues/464
|
||||
if ( document instanceof HTMLDocument === false ) {
|
||||
return;
|
||||
}
|
||||
|
||||
// This can happen
|
||||
if ( typeof vAPI !== 'object' ) {
|
||||
return;
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
if ( document.querySelector('iframe.dom-inspector.' + vAPI.sessionId) !== null ) {
|
||||
return;
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
/******************************************************************************/
|
||||
|
||||
// Modified to avoid installing as a global shim -- so the scriptlet can be
|
||||
// flushed from memory once no longer in use.
|
||||
|
||||
/*! http://mths.be/cssescape v0.2.1 by @mathias | MIT license */
|
||||
var cssEscape = (function(root) {
|
||||
|
||||
var css = root.CSS || {};
|
||||
if ( css.escape ) {
|
||||
return css.escape;
|
||||
}
|
||||
|
||||
var InvalidCharacterError = function(message) {
|
||||
this.message = message;
|
||||
};
|
||||
InvalidCharacterError.prototype = new Error();
|
||||
InvalidCharacterError.prototype.name = 'InvalidCharacterError';
|
||||
|
||||
// http://dev.w3.org/csswg/cssom/#serialize-an-identifier
|
||||
return function(value) {
|
||||
var string = String(value);
|
||||
var length = string.length;
|
||||
var index = -1;
|
||||
var codeUnit;
|
||||
var result = '';
|
||||
var firstCodeUnit = string.charCodeAt(0);
|
||||
while (++index < length) {
|
||||
codeUnit = string.charCodeAt(index);
|
||||
// Note: there’s no need to special-case astral symbols, surrogate
|
||||
// pairs, or lone surrogates.
|
||||
|
||||
// If the character is NULL (U+0000), then throw an
|
||||
// `InvalidCharacterError` exception and terminate these steps.
|
||||
if (codeUnit === 0x0000) {
|
||||
throw new InvalidCharacterError(
|
||||
'Invalid character: the input contains U+0000.'
|
||||
);
|
||||
}
|
||||
|
||||
if (
|
||||
// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
|
||||
// U+007F, […]
|
||||
(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F ||
|
||||
// If the character is the first character and is in the range [0-9]
|
||||
// (U+0030 to U+0039), […]
|
||||
(index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
|
||||
// If the character is the second character and is in the range [0-9]
|
||||
// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
|
||||
(
|
||||
index == 1 &&
|
||||
codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
|
||||
firstCodeUnit == 0x002D
|
||||
)
|
||||
) {
|
||||
// http://dev.w3.org/csswg/cssom/#escape-a-character-as-code-point
|
||||
result += '\\' + codeUnit.toString(16) + ' ';
|
||||
continue;
|
||||
}
|
||||
|
||||
// If the character is not handled by one of the above rules and is
|
||||
// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
|
||||
// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
|
||||
// U+005A), or [a-z] (U+0061 to U+007A), […]
|
||||
if (
|
||||
codeUnit >= 0x0080 ||
|
||||
codeUnit == 0x002D ||
|
||||
codeUnit == 0x005F ||
|
||||
codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
|
||||
codeUnit >= 0x0041 && codeUnit <= 0x005A ||
|
||||
codeUnit >= 0x0061 && codeUnit <= 0x007A
|
||||
) {
|
||||
// the character itself
|
||||
result += string.charAt(index);
|
||||
continue;
|
||||
}
|
||||
|
||||
// Otherwise, the escaped character.
|
||||
// http://dev.w3.org/csswg/cssom/#escape-a-character
|
||||
result += '\\' + string.charAt(index);
|
||||
|
||||
}
|
||||
return result;
|
||||
};
|
||||
|
||||
}(self));
|
||||
|
||||
/******************************************************************************/
|
||||
/******************************************************************************/
|
||||
|
||||
var localMessager = vAPI.messaging.channel('dom-inspector.js');
|
||||
|
||||
var svgOcean = null;
|
||||
var svgIslands = null;
|
||||
var svgRoot = null;
|
||||
var pickerRoot = null;
|
||||
var currentSelector = '';
|
||||
|
||||
var toggledNodes = new Map();
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var domLayout = (function() {
|
||||
var skipTagNames = {
|
||||
'br': true,
|
||||
'link': true,
|
||||
'meta': true,
|
||||
'script': true,
|
||||
'style': true
|
||||
};
|
||||
|
||||
var resourceAttrNames = {
|
||||
'a': 'href',
|
||||
'iframe': 'src',
|
||||
'img': 'src',
|
||||
'object': 'data'
|
||||
};
|
||||
|
||||
// Collect all nodes which are directly affected by cosmetic filters: these
|
||||
// will be reported in the layout data.
|
||||
|
||||
var nodeToCosmeticFilterMap = (function() {
|
||||
var out = new WeakMap();
|
||||
var styleTags = vAPI.styles || [];
|
||||
var i = styleTags.length;
|
||||
var selectors, styleText, j, selector, nodes, k;
|
||||
while ( i-- ) {
|
||||
styleText = styleTags[i].textContent;
|
||||
selectors = styleText.slice(0, styleText.lastIndexOf('\n')).split(/,\n/);
|
||||
j = selectors.length;
|
||||
while ( j-- ) {
|
||||
selector = selectors[j];
|
||||
nodes = document.querySelectorAll(selector);
|
||||
k = nodes.length;
|
||||
while ( k-- ) {
|
||||
out.set(nodes[k], selector);
|
||||
}
|
||||
}
|
||||
}
|
||||
return out;
|
||||
})();
|
||||
|
||||
var DomRoot = function() {
|
||||
this.lvl = 0;
|
||||
this.sel = 'body';
|
||||
var url = window.location.href;
|
||||
var pos = url.indexOf('#');
|
||||
if ( pos !== -1 ) {
|
||||
url = url.slice(0, pos);
|
||||
}
|
||||
this.src = url;
|
||||
this.top = window === window.top;
|
||||
this.cnt = 0;
|
||||
};
|
||||
|
||||
var DomNode = function(level, selector, filter) {
|
||||
this.lvl = level;
|
||||
this.sel = selector;
|
||||
this.cnt = 0;
|
||||
this.filter = filter;
|
||||
};
|
||||
|
||||
var hasManyMatches = function(node, selector) {
|
||||
var fnName = matchesSelector;
|
||||
if ( fnName === '' ) {
|
||||
return true;
|
||||
}
|
||||
var child = node.firstElementChild;
|
||||
var match = false;
|
||||
while ( child !== null ) {
|
||||
if ( child[fnName](selector) ) {
|
||||
if ( match ) {
|
||||
return true;
|
||||
}
|
||||
match = true;
|
||||
}
|
||||
child = child.nextElementSibling;
|
||||
}
|
||||
return false;
|
||||
};
|
||||
|
||||
var matchesSelector = (function() {
|
||||
if ( typeof Element.prototype.matches === 'function' ) {
|
||||
return 'matches';
|
||||
}
|
||||
if ( typeof Element.prototype.mozMatchesSelector === 'function' ) {
|
||||
return 'mozMatchesSelector';
|
||||
}
|
||||
if ( typeof Element.prototype.webkitMatchesSelector === 'function' ) {
|
||||
return 'webkitMatchesSelector';
|
||||
}
|
||||
return '';
|
||||
})();
|
||||
|
||||
var selectorFromNode = function(node) {
|
||||
var str, attr, pos, sw, i;
|
||||
var tag = node.localName;
|
||||
var selector = cssEscape(tag);
|
||||
// Id
|
||||
if ( typeof node.id === 'string' ) {
|
||||
str = node.id.trim();
|
||||
if ( str !== '' ) {
|
||||
selector += '#' + cssEscape(str);
|
||||
}
|
||||
}
|
||||
// Class
|
||||
var cl = node.classList;
|
||||
if ( cl ) {
|
||||
for ( i = 0; i < cl.length; i++ ) {
|
||||
selector += '.' + cssEscape(cl[i]);
|
||||
}
|
||||
}
|
||||
// Tag-specific attributes
|
||||
if ( resourceAttrNames.hasOwnProperty(tag) ) {
|
||||
attr = resourceAttrNames[tag];
|
||||
str = node.getAttribute(attr) || '';
|
||||
str = str.trim();
|
||||
pos = str.indexOf('#');
|
||||
if ( pos !== -1 ) {
|
||||
str = str.slice(0, pos);
|
||||
sw = '^';
|
||||
} else {
|
||||
sw = '';
|
||||
}
|
||||
if ( str !== '' ) {
|
||||
selector += '[' + attr + sw + '="' + cssEscape(str) + '"]';
|
||||
}
|
||||
}
|
||||
// The resulting selector must cause only one element to be selected. If
|
||||
// it's not the case, further narrow using `nth-of-type` pseudo-class.
|
||||
if ( hasManyMatches(node.parentElement, selector) ) {
|
||||
i = 1;
|
||||
while ( node.previousElementSibling ) {
|
||||
node = node.previousElementSibling;
|
||||
if ( node.localName === tag ) {
|
||||
i += 1;
|
||||
}
|
||||
}
|
||||
selector += ':nth-of-type(' + i + ')';
|
||||
}
|
||||
return selector;
|
||||
};
|
||||
|
||||
var domNodeFactory = function(level, node) {
|
||||
var localName = node.localName;
|
||||
if ( skipTagNames.hasOwnProperty(localName) ) {
|
||||
return null;
|
||||
}
|
||||
// skip uBlock's own nodes
|
||||
if ( node.classList.contains(vAPI.sessionId) ) {
|
||||
return null;
|
||||
}
|
||||
if ( level === 0 && localName === 'body' ) {
|
||||
return new DomRoot();
|
||||
}
|
||||
var selector = selectorFromNode(node);
|
||||
var filter = nodeToCosmeticFilterMap.get(node);
|
||||
return new DomNode(level, selector, filter);
|
||||
};
|
||||
|
||||
// Collect layout data.
|
||||
|
||||
var getLayoutData = function() {
|
||||
var domLayout = [];
|
||||
var stack = [];
|
||||
var node = document.body;
|
||||
var domNode;
|
||||
var lvl = 0;
|
||||
|
||||
for (;;) {
|
||||
domNode = domNodeFactory(lvl, node);
|
||||
if ( domNode !== null ) {
|
||||
domLayout.push(domNode);
|
||||
}
|
||||
// children
|
||||
if ( node.firstElementChild !== null ) {
|
||||
stack.push(node);
|
||||
lvl += 1;
|
||||
node = node.firstElementChild;
|
||||
continue;
|
||||
}
|
||||
// sibling
|
||||
if ( node.nextElementSibling === null ) {
|
||||
do {
|
||||
node = stack.pop();
|
||||
if ( !node ) { break; }
|
||||
lvl -= 1;
|
||||
} while ( node.nextElementSibling === null );
|
||||
if ( !node ) { break; }
|
||||
}
|
||||
node = node.nextElementSibling;
|
||||
}
|
||||
return domLayout;
|
||||
};
|
||||
|
||||
// Descendant count for each node.
|
||||
|
||||
var patchLayoutData = function(domLayout) {
|
||||
var stack = [], ptr;
|
||||
var lvl = 0;
|
||||
var domNode, cnt;
|
||||
var i = domLayout.length;
|
||||
|
||||
while ( i-- ) {
|
||||
domNode = domLayout[i];
|
||||
if ( domNode.lvl === lvl ) {
|
||||
stack[ptr] += 1;
|
||||
continue;
|
||||
}
|
||||
if ( domNode.lvl > lvl ) {
|
||||
while ( lvl < domNode.lvl ) {
|
||||
stack.push(0);
|
||||
lvl += 1;
|
||||
}
|
||||
ptr = lvl - 1;
|
||||
stack[ptr] += 1;
|
||||
continue;
|
||||
}
|
||||
// domNode.lvl < lvl
|
||||
cnt = stack.pop();
|
||||
domNode.cnt = cnt;
|
||||
lvl -= 1;
|
||||
ptr = lvl - 1;
|
||||
stack[ptr] += cnt + 1;
|
||||
}
|
||||
return domLayout;
|
||||
};
|
||||
|
||||
return function() {
|
||||
return patchLayoutData(getLayoutData());
|
||||
};
|
||||
})();
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
// Some kind of fingerprint for the DOM, without incurring too much overhead.
|
||||
|
||||
var domFingerprint = function() {
|
||||
return vAPI.sessionId + '{' + document.getElementsByTagName('*').length + '}';
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var highlightElements = function(elems, scrollTo) {
|
||||
var wv = pickerRoot.contentWindow.innerWidth;
|
||||
var hv = pickerRoot.contentWindow.innerHeight;
|
||||
var ocean = ['M0 0h' + wv + 'v' + hv + 'h-' + wv, 'z'];
|
||||
var islands = [];
|
||||
var elem, rect, poly;
|
||||
var xl, xr, yt, yb, w, h, ws;
|
||||
var xlu = Number.MAX_VALUE, xru = 0, ytu = Number.MAX_VALUE, ybu = 0;
|
||||
|
||||
for ( var i = 0; i < elems.length; i++ ) {
|
||||
elem = elems[i];
|
||||
if ( elem === pickerRoot ) {
|
||||
continue;
|
||||
}
|
||||
if ( typeof elem.getBoundingClientRect !== 'function' ) {
|
||||
continue;
|
||||
}
|
||||
|
||||
rect = elem.getBoundingClientRect();
|
||||
xl = rect.left;
|
||||
xr = rect.right;
|
||||
w = rect.width;
|
||||
yt = rect.top;
|
||||
yb = rect.bottom;
|
||||
h = rect.height;
|
||||
|
||||
ws = w.toFixed(1);
|
||||
poly = 'M' + xl.toFixed(1) + ' ' + yt.toFixed(1) +
|
||||
'h' + ws +
|
||||
'v' + h.toFixed(1) +
|
||||
'h-' + ws +
|
||||
'z';
|
||||
ocean.push(poly);
|
||||
islands.push(poly);
|
||||
|
||||
if ( !scrollTo ) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if ( xl < xlu ) { xlu = xl; }
|
||||
if ( xr > xru ) { xru = xr; }
|
||||
if ( yt < ytu ) { ytu = yt; }
|
||||
if ( yb > ybu ) { ybu = yb; }
|
||||
}
|
||||
svgOcean.setAttribute('d', ocean.join(''));
|
||||
svgIslands.setAttribute('d', islands.join('') || 'M0 0');
|
||||
|
||||
if ( !scrollTo ) {
|
||||
return;
|
||||
}
|
||||
|
||||
// Highlighted area completely within viewport
|
||||
if ( xlu >= 0 && xru <= wv && ytu >= 0 && ybu <= hv ) {
|
||||
return;
|
||||
}
|
||||
|
||||
var dx = 0, dy = 0;
|
||||
|
||||
if ( xru > wv ) {
|
||||
dx = xru - wv;
|
||||
xlu -= dx;
|
||||
}
|
||||
if ( xlu < 0 ) {
|
||||
dx += xlu;
|
||||
}
|
||||
if ( ybu > hv ) {
|
||||
dy = ybu - hv;
|
||||
ytu -= dy;
|
||||
}
|
||||
if ( ytu < 0 ) {
|
||||
dy += ytu;
|
||||
}
|
||||
|
||||
if ( dx !== 0 || dy !== 0 ) {
|
||||
window.scrollBy(dx, dy);
|
||||
}
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var elementsFromSelector = function(filter) {
|
||||
var out = [];
|
||||
try {
|
||||
out = document.querySelectorAll(filter);
|
||||
} catch (ex) {
|
||||
}
|
||||
return out;
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var highlight = function(scrollTo) {
|
||||
var elements = elementsFromSelector(currentSelector);
|
||||
highlightElements(elements, scrollTo);
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var onScrolled = function() {
|
||||
highlight();
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
// original, target = what to do
|
||||
// any, any = restore saved display property
|
||||
// any, hidden = set display to `none`, remember original state
|
||||
// hidden, any = remove display property, don't remember original state
|
||||
// hidden, hidden = set display to `none`
|
||||
|
||||
var toggleNodes = function(selector, originalState, targetState) {
|
||||
var nodes = document.querySelectorAll(selector);
|
||||
var i = nodes.length;
|
||||
if ( i === 0 ) {
|
||||
return;
|
||||
}
|
||||
var node, value;
|
||||
while ( i-- ) {
|
||||
node = nodes[i];
|
||||
if ( originalState ) { // any, ?
|
||||
if ( targetState ) { // any, any
|
||||
value = toggledNodes.get(node);
|
||||
if ( value === undefined ) {
|
||||
continue;
|
||||
}
|
||||
if ( value !== null ) {
|
||||
node.style.removeProperty('display');
|
||||
} else {
|
||||
node.style.setProperty('display', value);
|
||||
}
|
||||
toggledNodes.delete(node);
|
||||
} else { // any, hidden
|
||||
toggledNodes.set(node, node.style.getPropertyValue('display') || null);
|
||||
node.style.setProperty('display', 'none');
|
||||
}
|
||||
} else { // hidden, ?
|
||||
if ( targetState ) { // hidden, any
|
||||
node.style.setProperty('display', 'initial', 'important');
|
||||
} else { // hidden, hidden
|
||||
node.style.setProperty('display', 'none', 'important');
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var resetToggledNodes = function() {
|
||||
var value;
|
||||
// Chromium does not support destructuring as of v43.
|
||||
for ( var node of toggledNodes.keys() ) {
|
||||
value = toggledNodes.get(node);
|
||||
if ( value !== null ) {
|
||||
node.style.removeProperty('display');
|
||||
} else {
|
||||
node.style.setProperty('display', value);
|
||||
}
|
||||
}
|
||||
toggledNodes.clear();
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var shutdown = function() {
|
||||
resetToggledNodes();
|
||||
localMessager.removeListener(onMessage);
|
||||
localMessager.close();
|
||||
localMessager = null;
|
||||
window.removeEventListener('scroll', onScrolled, true);
|
||||
document.documentElement.removeChild(pickerRoot);
|
||||
pickerRoot = svgRoot = svgOcean = svgIslands = null;
|
||||
currentSelector = '';
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var onMessage = function(request) {
|
||||
var msg = request.what === 'postMessageTo' ? request.msg : request;
|
||||
var response;
|
||||
|
||||
switch ( msg.what ) {
|
||||
case 'domLayout':
|
||||
var fingerprint = domFingerprint();
|
||||
response = {
|
||||
what: 'domLayout',
|
||||
layout: msg.fingerprint !== fingerprint ? domLayout() : 'NOCHANGE',
|
||||
fingerprint: fingerprint
|
||||
};
|
||||
break;
|
||||
|
||||
case 'highlight':
|
||||
currentSelector = msg.selector;
|
||||
highlight(msg.scrollTo);
|
||||
break;
|
||||
|
||||
case 'toggleNodes':
|
||||
toggleNodes(msg.selector, msg.original, msg.target);
|
||||
currentSelector = msg.selector;
|
||||
highlight(true);
|
||||
break;
|
||||
|
||||
case 'shutdown':
|
||||
shutdown();
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
if ( response !== undefined && request.what === 'postMessageTo' ) {
|
||||
localMessager.send({
|
||||
what: 'postMessageTo',
|
||||
senderTabId: null,
|
||||
senderChannel: 'dom-inspector.js',
|
||||
receiverTabId: request.senderTabId,
|
||||
receiverChannel: request.senderChannel,
|
||||
msg: response
|
||||
});
|
||||
}
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
// Install DOM inspector widget
|
||||
|
||||
pickerRoot = document.createElement('iframe');
|
||||
pickerRoot.classList.add(vAPI.sessionId);
|
||||
pickerRoot.classList.add('dom-inspector');
|
||||
pickerRoot.style.cssText = [
|
||||
'background: transparent',
|
||||
'border: 0',
|
||||
'border-radius: 0',
|
||||
'box-shadow: none',
|
||||
'display: block',
|
||||
'height: 100%',
|
||||
'left: 0',
|
||||
'margin: 0',
|
||||
'opacity: 1',
|
||||
'position: fixed',
|
||||
'outline: 0',
|
||||
'padding: 0',
|
||||
'top: 0',
|
||||
'visibility: visible',
|
||||
'width: 100%',
|
||||
'z-index: 2147483647',
|
||||
''
|
||||
].join(' !important;\n');
|
||||
|
||||
pickerRoot.onload = function() {
|
||||
pickerRoot.onload = null;
|
||||
var pickerDoc = this.contentDocument;
|
||||
|
||||
var style = pickerDoc.createElement('style');
|
||||
style.textContent = [
|
||||
'body {',
|
||||
'background-color: transparent;',
|
||||
'cursor: crosshair;',
|
||||
'}',
|
||||
'svg {',
|
||||
'height: 100%;',
|
||||
'left: 0;',
|
||||
'position: fixed;',
|
||||
'top: 0;',
|
||||
'width: 100%;',
|
||||
'}',
|
||||
'svg > path:first-child {',
|
||||
'fill: rgba(0,0,0,0.75);',
|
||||
'fill-rule: evenodd;',
|
||||
'}',
|
||||
'svg > path + path {',
|
||||
'fill: rgba(0,0,255,0.1);',
|
||||
'stroke: #FFF;',
|
||||
'stroke-width: 0.5px;',
|
||||
'}',
|
||||
''
|
||||
].join('\n');
|
||||
pickerDoc.body.appendChild(style);
|
||||
|
||||
svgRoot = pickerDoc.createElementNS('http://www.w3.org/2000/svg', 'svg');
|
||||
svgOcean = pickerDoc.createElementNS('http://www.w3.org/2000/svg', 'path');
|
||||
svgRoot.appendChild(svgOcean);
|
||||
svgIslands = pickerDoc.createElementNS('http://www.w3.org/2000/svg', 'path');
|
||||
svgRoot.appendChild(svgIslands);
|
||||
pickerDoc.body.appendChild(svgRoot);
|
||||
|
||||
window.addEventListener('scroll', onScrolled, true);
|
||||
|
||||
highlight();
|
||||
|
||||
localMessager.addListener(onMessage);
|
||||
};
|
||||
|
||||
document.documentElement.appendChild(pickerRoot);
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
})();
|
||||
|
||||
/******************************************************************************/
|
||||
|
|
@ -1,406 +0,0 @@
|
|||
/*******************************************************************************
|
||||
|
||||
uBlock Origin - a browser extension to block requests.
|
||||
Copyright (C) 2015 Raymond Hill
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see {http://www.gnu.org/licenses/}.
|
||||
|
||||
Home: https://github.com/gorhill/uBlock
|
||||
*/
|
||||
|
||||
/* global vAPI, HTMLDocument */
|
||||
|
||||
/******************************************************************************/
|
||||
/******************************************************************************/
|
||||
|
||||
/*! http://mths.be/cssescape v0.2.1 by @mathias | MIT license */
|
||||
;(function(root) {
|
||||
|
||||
'use strict';
|
||||
|
||||
if (!root.CSS) {
|
||||
root.CSS = {};
|
||||
}
|
||||
|
||||
var CSS = root.CSS;
|
||||
|
||||
var InvalidCharacterError = function(message) {
|
||||
this.message = message;
|
||||
};
|
||||
InvalidCharacterError.prototype = new Error();
|
||||
InvalidCharacterError.prototype.name = 'InvalidCharacterError';
|
||||
|
||||
if (!CSS.escape) {
|
||||
// http://dev.w3.org/csswg/cssom/#serialize-an-identifier
|
||||
CSS.escape = function(value) {
|
||||
var string = String(value);
|
||||
var length = string.length;
|
||||
var index = -1;
|
||||
var codeUnit;
|
||||
var result = '';
|
||||
var firstCodeUnit = string.charCodeAt(0);
|
||||
while (++index < length) {
|
||||
codeUnit = string.charCodeAt(index);
|
||||
// Note: there’s no need to special-case astral symbols, surrogate
|
||||
// pairs, or lone surrogates.
|
||||
|
||||
// If the character is NULL (U+0000), then throw an
|
||||
// `InvalidCharacterError` exception and terminate these steps.
|
||||
if (codeUnit === 0x0000) {
|
||||
throw new InvalidCharacterError(
|
||||
'Invalid character: the input contains U+0000.'
|
||||
);
|
||||
}
|
||||
|
||||
if (
|
||||
// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
|
||||
// U+007F, […]
|
||||
(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F ||
|
||||
// If the character is the first character and is in the range [0-9]
|
||||
// (U+0030 to U+0039), […]
|
||||
(index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
|
||||
// If the character is the second character and is in the range [0-9]
|
||||
// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
|
||||
(
|
||||
index == 1 &&
|
||||
codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
|
||||
firstCodeUnit == 0x002D
|
||||
)
|
||||
) {
|
||||
// http://dev.w3.org/csswg/cssom/#escape-a-character-as-code-point
|
||||
result += '\\' + codeUnit.toString(16) + ' ';
|
||||
continue;
|
||||
}
|
||||
|
||||
// If the character is not handled by one of the above rules and is
|
||||
// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
|
||||
// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
|
||||
// U+005A), or [a-z] (U+0061 to U+007A), […]
|
||||
if (
|
||||
codeUnit >= 0x0080 ||
|
||||
codeUnit == 0x002D ||
|
||||
codeUnit == 0x005F ||
|
||||
codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
|
||||
codeUnit >= 0x0041 && codeUnit <= 0x005A ||
|
||||
codeUnit >= 0x0061 && codeUnit <= 0x007A
|
||||
) {
|
||||
// the character itself
|
||||
result += string.charAt(index);
|
||||
continue;
|
||||
}
|
||||
|
||||
// Otherwise, the escaped character.
|
||||
// http://dev.w3.org/csswg/cssom/#escape-a-character
|
||||
result += '\\' + string.charAt(index);
|
||||
|
||||
}
|
||||
return result;
|
||||
};
|
||||
}
|
||||
|
||||
}(self));
|
||||
|
||||
/******************************************************************************/
|
||||
/******************************************************************************/
|
||||
|
||||
(function() {
|
||||
|
||||
'use strict';
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
// https://github.com/gorhill/uBlock/issues/464
|
||||
if ( document instanceof HTMLDocument === false ) {
|
||||
return;
|
||||
}
|
||||
|
||||
// This can happen
|
||||
if ( typeof vAPI !== 'object' ) {
|
||||
return;
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var skipTagNames = {
|
||||
'br': true,
|
||||
'link': true,
|
||||
'meta': true,
|
||||
'script': true,
|
||||
'style': true
|
||||
};
|
||||
|
||||
var resourceAttrNames = {
|
||||
'a': 'href',
|
||||
'iframe': 'src',
|
||||
'img': 'src',
|
||||
'object': 'data'
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
// Collect all nodes which are directly affected by cosmetic filters: these
|
||||
// will be reported in the layout data.
|
||||
|
||||
var nodeToCosmeticFilterMap = (function() {
|
||||
var out = new WeakMap();
|
||||
var styleTags = vAPI.styles || [];
|
||||
var i = styleTags.length;
|
||||
var selectors, styleText, j, selector, nodes, k;
|
||||
while ( i-- ) {
|
||||
styleText = styleTags[i].textContent;
|
||||
selectors = styleText.slice(0, styleText.lastIndexOf('\n')).split(/,\n/);
|
||||
j = selectors.length;
|
||||
while ( j-- ) {
|
||||
selector = selectors[j];
|
||||
nodes = document.querySelectorAll(selector);
|
||||
k = nodes.length;
|
||||
while ( k-- ) {
|
||||
out.set(nodes[k], selector);
|
||||
}
|
||||
}
|
||||
}
|
||||
return out;
|
||||
})();
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var DomRoot = function() {
|
||||
this.lvl = 0;
|
||||
this.sel = 'body';
|
||||
var url = window.location.href;
|
||||
var pos = url.indexOf('#');
|
||||
if ( pos !== -1 ) {
|
||||
url = url.slice(0, pos);
|
||||
}
|
||||
this.src = url;
|
||||
this.top = window === window.top;
|
||||
this.cnt = 0;
|
||||
this.fp = fingerprint();
|
||||
};
|
||||
|
||||
var DomNode = function(level, selector, filter) {
|
||||
this.lvl = level;
|
||||
this.sel = selector;
|
||||
this.cnt = 0;
|
||||
this.filter = filter;
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var hasManyMatches = function(node, selector) {
|
||||
var fnName = matchesSelector;
|
||||
if ( fnName === '' ) {
|
||||
return true;
|
||||
}
|
||||
var child = node.firstElementChild;
|
||||
var match = false;
|
||||
while ( child !== null ) {
|
||||
if ( child[fnName](selector) ) {
|
||||
if ( match ) {
|
||||
return true;
|
||||
}
|
||||
match = true;
|
||||
}
|
||||
child = child.nextElementSibling;
|
||||
}
|
||||
return false;
|
||||
};
|
||||
|
||||
var matchesSelector = (function() {
|
||||
if ( typeof Element.prototype.matches === 'function' ) {
|
||||
return 'matches';
|
||||
}
|
||||
if ( typeof Element.prototype.mozMatchesSelector === 'function' ) {
|
||||
return 'mozMatchesSelector';
|
||||
}
|
||||
if ( typeof Element.prototype.webkitMatchesSelector === 'function' ) {
|
||||
return 'webkitMatchesSelector';
|
||||
}
|
||||
return '';
|
||||
})();
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var selectorFromNode = function(node) {
|
||||
var str, attr, pos, sw, i;
|
||||
var tag = node.localName;
|
||||
var selector = CSS.escape(tag);
|
||||
// Id
|
||||
if ( typeof node.id === 'string' ) {
|
||||
str = node.id.trim();
|
||||
if ( str !== '' ) {
|
||||
selector += '#' + CSS.escape(str);
|
||||
}
|
||||
}
|
||||
// Class
|
||||
var cl = node.classList;
|
||||
if ( cl ) {
|
||||
for ( i = 0; i < cl.length; i++ ) {
|
||||
selector += '.' + CSS.escape(cl[i]);
|
||||
}
|
||||
}
|
||||
// Tag-specific attributes
|
||||
if ( resourceAttrNames.hasOwnProperty(tag) ) {
|
||||
attr = resourceAttrNames[tag];
|
||||
str = node.getAttribute(attr) || '';
|
||||
str = str.trim();
|
||||
pos = str.indexOf('#');
|
||||
if ( pos !== -1 ) {
|
||||
str = str.slice(0, pos);
|
||||
sw = '^';
|
||||
} else {
|
||||
sw = '';
|
||||
}
|
||||
if ( str !== '' ) {
|
||||
selector += '[' + attr + sw + '="' + CSS.escape(str) + '"]';
|
||||
}
|
||||
}
|
||||
// The resulting selector must cause only one element to be selected. If
|
||||
// it's not the case, further narrow using `nth-of-type` pseudo-class.
|
||||
if ( hasManyMatches(node.parentElement, selector) ) {
|
||||
i = 1;
|
||||
while ( node.previousElementSibling ) {
|
||||
node = node.previousElementSibling;
|
||||
if ( node.localName === tag ) {
|
||||
i += 1;
|
||||
}
|
||||
}
|
||||
selector += ':nth-of-type(' + i + ')';
|
||||
}
|
||||
return selector;
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var domNodeFactory = function(level, node) {
|
||||
var localName = node.localName;
|
||||
if ( skipTagNames.hasOwnProperty(localName) ) {
|
||||
return null;
|
||||
}
|
||||
// skip uBlock's own nodes
|
||||
if ( node.classList.contains(vAPI.sessionId) ) {
|
||||
return null;
|
||||
}
|
||||
if ( level === 0 && localName === 'body' ) {
|
||||
return new DomRoot();
|
||||
}
|
||||
var selector = selectorFromNode(node);
|
||||
var filter = nodeToCosmeticFilterMap.get(node);
|
||||
return new DomNode(level, selector, filter);
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
// Some kind of fingerprint for the DOM, without incurring too much
|
||||
// overhead.
|
||||
|
||||
var fingerprint = function() {
|
||||
var url = window.location.href;
|
||||
var pos = url.indexOf('#');
|
||||
if ( pos !== -1 ) {
|
||||
url = url.slice(0, pos);
|
||||
}
|
||||
return url + '{' + document.getElementsByTagName('*').length.toString() + '}';
|
||||
};
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
// Collect layout data.
|
||||
|
||||
var domLayout = [];
|
||||
|
||||
(function() {
|
||||
var dom = domLayout;
|
||||
var stack = [];
|
||||
var node = document.body;
|
||||
var domNode;
|
||||
var lvl = 0;
|
||||
|
||||
for (;;) {
|
||||
domNode = domNodeFactory(lvl, node);
|
||||
if ( domNode !== null ) {
|
||||
dom.push(domNode);
|
||||
}
|
||||
// children
|
||||
if ( node.firstElementChild !== null ) {
|
||||
stack.push(node);
|
||||
lvl += 1;
|
||||
node = node.firstElementChild;
|
||||
continue;
|
||||
}
|
||||
// sibling
|
||||
if ( node.nextElementSibling === null ) {
|
||||
do {
|
||||
node = stack.pop();
|
||||
if ( !node ) { break; }
|
||||
lvl -= 1;
|
||||
} while ( node.nextElementSibling === null );
|
||||
if ( !node ) { break; }
|
||||
}
|
||||
node = node.nextElementSibling;
|
||||
}
|
||||
})();
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
// Descendant count for each node.
|
||||
|
||||
(function() {
|
||||
var dom = domLayout;
|
||||
var stack = [], ptr;
|
||||
var lvl = 0;
|
||||
var domNode, cnt;
|
||||
var i = dom.length;
|
||||
|
||||
while ( i-- ) {
|
||||
domNode = dom[i];
|
||||
if ( domNode.lvl === lvl ) {
|
||||
stack[ptr] += 1;
|
||||
continue;
|
||||
}
|
||||
if ( domNode.lvl > lvl ) {
|
||||
while ( lvl < domNode.lvl ) {
|
||||
stack.push(0);
|
||||
lvl += 1;
|
||||
}
|
||||
ptr = lvl - 1;
|
||||
stack[ptr] += 1;
|
||||
continue;
|
||||
}
|
||||
// domNode.lvl < lvl
|
||||
cnt = stack.pop();
|
||||
domNode.cnt = cnt;
|
||||
lvl -= 1;
|
||||
ptr = lvl - 1;
|
||||
stack[ptr] += cnt + 1;
|
||||
}
|
||||
})();
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
var localMessager = vAPI.messaging.channel('scriptlets');
|
||||
localMessager.send({
|
||||
what: 'scriptletResponse',
|
||||
scriptlet: 'dom-layout',
|
||||
response: domLayout
|
||||
}, function() {
|
||||
localMessager.close();
|
||||
localMessager = null;
|
||||
});
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
})();
|
||||
|
||||
/******************************************************************************/
|
||||
Loading…
Reference in a new issue