! TB104 support

! smart folders now remember last viewed message (unless "forced" is enabled)
! no messages selected on startup
! settings UI not initialized if settings tab was opened on startup

Author: vanowm

.gitignore

@@ -1,4 +1,6 @@
 *.xpi
 chrome.manifest
 install.rdf
-.main
+.main
+.vscode/Auto Select Latest Message.code-workspace
+.vscode/settings.json

src/api/BootstrapLoader/implementation.js

@@ -215,7 +215,7 @@ var BootstrapLoader = class extends ExtensionCommon.ExtensionAPI {
   // returns the outer browser, not the nested browser of the add-on manager
   // events must be attached to the outer browser
   getAddonManagerFromTab(tab) {
-    if (tab.browser) {
+    if (tab.browser && tab.mode.name == "contentTab") {
       let win = tab.browser.contentWindow;
       if (win && win.location.href == "about:addons") {
         return win;
@@ -226,9 +226,28 @@ var BootstrapLoader = class extends ExtensionCommon.ExtensionAPI {
   getAddonManagerFromWindow(window) {
     let tabMail = this.getTabMail(window);
     for (let tab of tabMail.tabInfo) {
-      let win = this.getAddonManagerFromTab(tab)
-      if (win) {
-        return win;
+      let managerWindow = this.getAddonManagerFromTab(tab);
+      if (managerWindow) {
+        return managerWindow;
+      }
+    }
+  }
+
+  async getAddonManagerFromWindowWaitForLoad(window) {
+    let { setTimeout } = Services.wm.getMostRecentWindow("mail:3pane");
+    
+    let tabMail = this.getTabMail(window);
+    for (let tab of tabMail.tabInfo) {
+      if (tab.browser && tab.mode.name == "contentTab") {
+        // Instead of registering a load observer, wait until its loaded. Not nice,
+        // but gets around a lot of edge cases.
+        while(!tab.pageLoaded) {
+          await new Promise(r => setTimeout(r, 150));
+        }
+        let managerWindow = this.getAddonManagerFromTab(tab);
+        if (managerWindow) {
+          return managerWindow;
+        }
       }
     }
   }
@@ -288,44 +307,20 @@ var BootstrapLoader = class extends ExtensionCommon.ExtensionAPI {
 
     // TabMonitor to detect opening of tabs, to setup the options button in the add-on manager.
     this.tabMonitor = {
-      onTabTitleChanged(aTab) { },
-      onTabClosing(aTab) { },
-      onTabPersist(aTab) { },
-      onTabRestored(aTab) { },
-      onTabSwitched(aNewTab, aOldTab) {
-        //self.setupAddonManager(self.getAddonManagerFromTab(aNewTab));
-      },
-      async onTabOpened(aTab) {
-        if (aTab.browser) {
-          if (!aTab.pageLoaded) {
-            // await a location change if browser is not loaded yet
-            await new Promise(resolve => {
-              let reporterListener = {
-                QueryInterface: ChromeUtils.generateQI([
-                  "nsIWebProgressListener",
-                  "nsISupportsWeakReference",
-                ]),
-                onStateChange() { },
-                onProgressChange() { },
-                onLocationChange(
-                    /* in nsIWebProgress*/ aWebProgress,
-                    /* in nsIRequest*/ aRequest,
-                    /* in nsIURI*/ aLocation
-                ) {
-                  aTab.browser.removeProgressListener(reporterListener);
-                  resolve();
-                },
-                onStatusChange() { },
-                onSecurityChange() { },
-                onContentBlockingEvent() { }
-              }
-              aTab.browser.addProgressListener(reporterListener);
-            });
+      onTabTitleChanged(tab) { },
+      onTabClosing(tab) { },
+      onTabPersist(tab) { },
+      onTabRestored(tab) { },
+      onTabSwitched(aNewTab, aOldTab) { },
+      async onTabOpened(tab) {
+        if (tab.browser && tab.mode.name == "contentTab") {
+          let { setTimeout } = Services.wm.getMostRecentWindow("mail:3pane");
+          // Instead of registering a load observer, wait until its loaded. Not nice,
+          // but gets around a lot of edge cases.
+          while(!tab.pageLoaded) {
+            await new Promise(r => setTimeout(r, 150));
           }
-          // Setup the ViewChange event listener in the outer browser of the add-on,
-          // but do not actually add the button/menu, as the inner browser is not yet ready,
-          // let the ViewChange event do it
-          self.setupAddonManager(self.getAddonManagerFromTab(aTab));
+          self.setupAddonManager(self.getAddonManagerFromTab(tab));
         }
       },
     };
@@ -417,15 +412,13 @@ var BootstrapLoader = class extends ExtensionCommon.ExtensionAPI {
                   let element_addonPrefs = window.document.getElementById(self.menu_addonPrefs_id);
                   element_addonPrefs.addEventListener("popupshowing", self);
                 } else {
-                  // Setup the options button/menu in the add-on manager, if it is already open.
-                  self.setupAddonManager(
-                    self.getAddonManagerFromWindow(window),
-                    true
-                  );
                   // Add a tabmonitor, to be able to setup the options button/menu in the add-on manager.
                   self.getTabMail(window).registerTabMonitor(self.tabMonitor);
                   window[self.uniqueRandomID] = {};
                   window[self.uniqueRandomID].hasTabMonitor = true;
+                  // Setup the options button/menu in the add-on manager, if it is already open.
+                  let managerWindow = await self.getAddonManagerFromWindowWaitForLoad(window);
+                  self.setupAddonManager(managerWindow, true);
                 }
               },