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@ -140,25 +140,52 @@ housekeep itself.
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*/
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µm.tabContextManager = (function() {
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var tabContexts = new Map();
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let tabContexts = new Map();
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let urlToTabIds = {
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associations: new Map(),
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associate: function(tabId, url) {
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let tabIds = this.associations.get(url);
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if ( tabIds === undefined ) {
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this.associations.set(url, (tabIds = []));
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} else {
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let i = tabIds.indexOf(tabId);
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if ( i !== -1 ) {
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tabIds.splice(i, 1);
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}
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}
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tabIds.push(tabId);
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},
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dissociate: function(tabId, url) {
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let tabIds = this.associations.get(url);
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if ( tabIds === undefined ) { return; }
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let i = tabIds.indexOf(tabId);
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if ( i !== -1 ) {
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tabIds.splice(i, 1);
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}
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if ( tabIds.length === 0 ) {
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this.associations.delete(url);
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}
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}
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};
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// https://github.com/chrisaljoudi/uBlock/issues/1001
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// This is to be used as last-resort fallback in case a tab is found to not
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// be bound while network requests are fired for the tab.
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var mostRecentRootDocURL = '';
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var mostRecentRootDocURLTimestamp = 0;
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let mostRecentRootDocURL = '';
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let mostRecentRootDocURLTimestamp = 0;
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var gcPeriod = 31 * 60 * 1000; // every 31 minutes
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let gcPeriod = 31 * 60 * 1000; // every 31 minutes
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// A pushed entry is removed from the stack unless it is committed with
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// a set time.
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var StackEntry = function(url, commit) {
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let StackEntry = function(url, commit) {
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this.url = url;
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this.committed = commit;
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this.tstamp = Date.now();
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};
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var TabContext = function(tabId) {
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let TabContext = function(tabId) {
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this.tabId = tabId;
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this.stack = [];
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this.rawURL =
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@ -179,6 +206,7 @@ housekeep itself.
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clearTimeout(this.gcTimer);
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this.gcTimer = null;
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}
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urlToTabIds.dissociate(this.tabId, this.rawURL);
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tabContexts.delete(this.tabId);
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};
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@ -192,9 +220,7 @@ housekeep itself.
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TabContext.prototype.onGC = function() {
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this.gcTimer = null;
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if ( vAPI.isBehindTheSceneTabId(this.tabId) ) {
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return;
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}
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if ( vAPI.isBehindTheSceneTabId(this.tabId) ) { return; }
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vAPI.tabs.get(this.tabId, this.onTab.bind(this));
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};
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@ -202,12 +228,10 @@ housekeep itself.
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// Stack entries have to be committed to stick. Non-committed stack
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// entries are removed after a set delay.
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TabContext.prototype.onCommit = function() {
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if ( vAPI.isBehindTheSceneTabId(this.tabId) ) {
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return;
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}
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if ( vAPI.isBehindTheSceneTabId(this.tabId) ) { return; }
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this.commitTimer = null;
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// Remove uncommitted entries at the top of the stack.
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var i = this.stack.length;
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let i = this.stack.length;
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while ( i-- ) {
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if ( this.stack[i].committed ) {
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break;
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@ -232,15 +256,14 @@ housekeep itself.
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// contexts, as the behind-the-scene context is permanent -- so we do not
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// want to flush it.
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TabContext.prototype.autodestroy = function() {
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if ( vAPI.isBehindTheSceneTabId(this.tabId) ) {
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return;
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}
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if ( vAPI.isBehindTheSceneTabId(this.tabId) ) { return; }
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this.gcTimer = vAPI.setTimeout(this.onGC.bind(this), gcPeriod);
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};
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// Update just force all properties to be updated to match the most recent
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// root URL.
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TabContext.prototype.update = function() {
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urlToTabIds.dissociate(this.tabId, this.rawURL);
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if ( this.stack.length === 0 ) {
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this.rawURL = this.normalURL = this.scheme =
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this.rootHostname = this.rootDomain = '';
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@ -253,14 +276,15 @@ housekeep itself.
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this.rootHostname = µm.URI.hostnameFromURI(this.normalURL);
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this.rootDomain = µm.URI.domainFromHostname(this.rootHostname) || this.rootHostname;
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this.secure = µm.URI.isSecureScheme(this.scheme);
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urlToTabIds.associate(this.tabId, this.rawURL);
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};
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// Called whenever a candidate root URL is spotted for the tab.
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TabContext.prototype.push = function(url, context) {
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if ( vAPI.isBehindTheSceneTabId(this.tabId) ) { return; }
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var committed = context !== undefined;
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var count = this.stack.length;
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var topEntry = this.stack[count - 1];
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let committed = context !== undefined;
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let count = this.stack.length;
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let topEntry = this.stack[count - 1];
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if ( topEntry && topEntry.url === url ) {
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if ( committed ) {
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topEntry.committed = true;
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@ -282,7 +306,7 @@ housekeep itself.
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// These are to be used for the API of the tab context manager.
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var push = function(tabId, url, context) {
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let push = function(tabId, url, context) {
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let entry = tabContexts.get(tabId);
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if ( entry === undefined ) {
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entry = new TabContext(tabId);
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@ -296,8 +320,8 @@ housekeep itself.
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// Find a tab context for a specific tab. If none is found, attempt to
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// fix this. When all fail, the behind-the-scene context is returned.
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var mustLookup = function(tabId, url) {
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var entry;
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let mustLookup = function(tabId, url) {
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let entry;
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if ( url !== undefined ) {
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entry = push(tabId, url);
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} else {
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@ -330,13 +354,19 @@ housekeep itself.
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return tabContexts.get(vAPI.noTabId);
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};
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var lookup = function(tabId) {
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let lookup = function(tabId) {
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return tabContexts.get(tabId) || null;
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};
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let tabIdFromURL = function(url) {
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let tabIds = urlToTabIds.associations.get(url);
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if ( tabIds === undefined ) { return -1; }
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return tabIds[tabIds.length - 1];
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};
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// Behind-the-scene tab context
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(function() {
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var entry = new TabContext(vAPI.noTabId);
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let entry = new TabContext(vAPI.noTabId);
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entry.stack.push(new StackEntry('', true));
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entry.rawURL = '';
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entry.normalURL = µm.normalizePageURL(entry.tabId);
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@ -350,7 +380,7 @@ housekeep itself.
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// the badge to no be updated for these network requests.
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vAPI.tabs.onNavigation = function(details) {
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var tabId = details.tabId;
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let tabId = details.tabId;
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if ( vAPI.isBehindTheSceneTabId(tabId) ) { return; }
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push(tabId, details.url, 'newURL');
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µm.updateBadgeAsync(tabId);
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@ -362,7 +392,7 @@ housekeep itself.
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vAPI.tabs.onUpdated = function(tabId, changeInfo, tab) {
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if ( vAPI.isBehindTheSceneTabId(tabId) ) { return; }
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if ( typeof tab.url !== 'string' || tab.url === '' ) { return; }
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var url = changeInfo.url || tab.url;
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let url = changeInfo.url || tab.url;
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if ( url ) {
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push(tabId, url, 'updateURL');
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}
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@ -379,7 +409,8 @@ housekeep itself.
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return {
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push: push,
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lookup: lookup,
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mustLookup: mustLookup
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mustLookup: mustLookup,
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tabIdFromURL: tabIdFromURL
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};
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})();
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