popup: "configure" opens USO page and expands the settings area

content/install-hook-userstyles.js

@@ -13,9 +13,15 @@
       document.addEventListener('stylish' + type + browser, onClick)));
 
   chrome.runtime.onMessage.addListener((msg, sender, sendResponse) => {
-    // orphaned content script check
-    if (msg.method === 'ping') {
-      sendResponse(true);
+    switch (msg.method) {
+      case 'ping':
+        // orphaned content script check
+        sendResponse(true);
+        break;
+      case 'openSettings':
+        openSettings();
+        sendResponse(true);
+        break;
     }
   });
 
@@ -260,6 +266,26 @@
   }
 
 
+  function openSettings(countdown = 10e3) {
+    const button = document.querySelector('.advanced_button') ||
+      document.evaluate('//*[not(*) and contains(., "Advanced Style Settings")]',
+        document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
+    if (button) {
+      button.dispatchEvent(new MouseEvent('click', {bubbles: true}));
+      setTimeout(function pollArea(countdown = 2000) {
+        const area = document.getElementById('advancedsettings_area');
+        if (area || countdown < 0) {
+          (area || button).scrollIntoView({behavior: 'smooth', block: area ? 'end' : 'center'});
+        } else {
+          setTimeout(pollArea, 100, countdown - 100);
+        }
+      }, 500);
+    } else if (countdown > 0) {
+      setTimeout(openSettings, 100, countdown - 100);
+    }
+  }
+
+
   function orphanCheck() {
     if (chrome.i18n && chrome.i18n.getUILanguage()) {
       return true;

js/messaging.js

@@ -213,7 +213,7 @@ function getTabRealURL(tab) {
 
 // opens a tab or activates the already opened one,
 // reuses the New Tab page if it's focused now
-function openURL({url, index, openerTabId, currentWindow = true}) {
+function openURL({url, index, active, currentWindow = true}) {
   if (!url.includes('://')) {
     url = chrome.runtime.getURL(url);
   }
@@ -237,7 +237,7 @@ function openURL({url, index, openerTabId, currentWindow = true}) {
           chrome.tabs.update({url}, resolve);
         } else {
           // create a new tab
-          const options = {url, index};
+          const options = {url, index, active};
           // FF57+ supports openerTabId, but not in Android (indicated by the absence of chrome.windows)
           if (tab && (!FIREFOX || FIREFOX >= 57 && chrome.windows) && !chromeInIncognito) {
             options.openerTabId = tab.id;

popup/popup.js

@@ -277,6 +277,7 @@ function createStyleElement({
     config.href = style.url;
     config.target = '_blank';
     config.title = t('configureStyleOnHomepage');
+    config.dataset.sendMessage = JSON.stringify({method: 'openSettings'});
     $('use', config).attributes['xlink:href'].nodeValue = '#svg-icon-config-uso';
   } else if (!style.usercssData || !Object.keys(style.usercssData.vars || {}).length) {
     config.style.display = 'none';
@@ -364,6 +365,8 @@ Object.assign(handleEvent, {
           hotkeys.setState(true);
         });
       });
+    } else {
+      handleEvent.openURLandHide.call(this, event);
     }
   },
 
@@ -418,7 +421,22 @@ Object.assign(handleEvent, {
 
   openURLandHide(event) {
     event.preventDefault();
-    openURL({url: this.href || this.dataset.href})
+    const el = this;
+    const msg = tryJSONparse(el.dataset.sendMessage);
+    getActiveTab()
+      .then(activeTab => openURL({
+        url: this.href || this.dataset.href,
+        index: activeTab.index + 1,
+        active: false,
+      }))
+      .then(msg && (
+        function poll(tab, t0 = performance.now()) {
+          msg.tabId = tab.id;
+          return sendMessage(msg)
+            .catch(ignoreChromeError)
+            .then(handled => handled || performance.now() - t0 < 200 && poll(tab))
+            .then(() => chrome.tabs.update(tab.id, {active: true}));
+        }))
       .then(window.close);
   },
 

popup/search-results.js

@@ -366,6 +366,7 @@ window.addEventListener('showStyles:done', function _() {
 
         const customizeButton = $('.search-result-customize', entry);
         customizeButton.dataset.href = searchAPI.BASE_URL + result.url;
+        customizeButton.dataset.sendMessage = JSON.stringify({method: 'openSettings'});
         customizeButton.classList.remove('hidden');
         customizeButton.onclick = function (event) {
           event.stopPropagation();