Bug 1062604 - Check for actors in WebIDE before use. r=paul

browser/devtools/app-manager/webapps-store.js

@@ -80,10 +80,13 @@ WebappsStore.prototype = {
   },
 
   _feedStore: function() {
+    if (!this._webAppsActor) {
+      return promise.resolve();
+    }
     this._listenToApps();
     return this._getAllApps()
                .then(this._getRunningApps.bind(this))
-               .then(this._getAppsIcons.bind(this))
+               .then(this._getAppsIcons.bind(this));
   },
 
   _listenToApps: function() {

browser/devtools/webide/content/runtimedetails.js

@@ -84,7 +84,7 @@ function CheckLockState() {
 
   if (AppManager.connection &&
       AppManager.connection.status == Connection.Status.CONNECTED &&
-      AppManager.deviceFront) {
+      AppManager.preferenceFront) {
 
     // ADB check
     if (AppManager.selectedRuntime instanceof USBRuntime) {

browser/devtools/webide/content/webide.js

@@ -139,6 +139,7 @@ let UI = {
         break;
       case "project-is-not-running":
       case "project-is-running":
+      case "list-tabs-response":
         this.updateCommands();
         break;
       case "runtime":
@@ -596,16 +597,18 @@ let UI = {
 
     let runtimePanelButton = document.querySelector("#runtime-panel-button");
     if (AppManager.connection.status == Connection.Status.CONNECTED) {
-      screenshotCmd.removeAttribute("disabled");
-      permissionsCmd.removeAttribute("disabled");
+      if (AppManager.deviceFront) {
+        detailsCmd.removeAttribute("disabled");
+        permissionsCmd.removeAttribute("disabled");
+        screenshotCmd.removeAttribute("disabled");
+      }
       disconnectCmd.removeAttribute("disabled");
-      detailsCmd.removeAttribute("disabled");
       runtimePanelButton.setAttribute("active", "true");
     } else {
-      screenshotCmd.setAttribute("disabled", "true");
-      permissionsCmd.setAttribute("disabled", "true");
-      disconnectCmd.setAttribute("disabled", "true");
       detailsCmd.setAttribute("disabled", "true");
+      permissionsCmd.setAttribute("disabled", "true");
+      screenshotCmd.setAttribute("disabled", "true");
+      disconnectCmd.setAttribute("disabled", "true");
       runtimePanelButton.removeAttribute("active");
     }
 
@@ -826,7 +829,13 @@ let Cmds = {
 
 
     let runtimeappsHeaderNode = document.querySelector("#panel-header-runtimeapps");
-    if (AppManager.connection.status == Connection.Status.CONNECTED) {
+    let sortedApps = AppManager.webAppsStore.object.all;
+    sortedApps = sortedApps.sort((a, b) => {
+      return a.name > b.name;
+    });
+    let mainProcess = AppManager.isMainProcessDebuggable();
+    if (AppManager.connection.status == Connection.Status.CONNECTED &&
+        (sortedApps.length > 0 || mainProcess)) {
       runtimeappsHeaderNode.removeAttribute("hidden");
     } else {
       runtimeappsHeaderNode.setAttribute("hidden", "true");
@@ -837,7 +846,7 @@ let Cmds = {
       runtimeAppsNode.firstChild.remove();
     }
 
-    if (AppManager.isMainProcessDebuggable()) {
+    if (mainProcess) {
       let panelItemNode = document.createElement("toolbarbutton");
       panelItemNode.className = "panel-item";
       panelItemNode.setAttribute("label", Strings.GetStringFromName("mainProcess_label"));
@@ -853,10 +862,6 @@ let Cmds = {
       }, true);
     }
 
-    let sortedApps = AppManager.webAppsStore.object.all;
-    sortedApps = sortedApps.sort((a, b) => {
-      return a.name > b.name;
-    });
     for (let i = 0; i < sortedApps.length; i++) {
       let app = sortedApps[i];
       let panelItemNode = document.createElement("toolbarbutton");

toolkit/devtools/server/actors/device.js

@@ -224,10 +224,15 @@ let DeviceFront = protocol.FrontClass(DeviceActor, {
 const _knownDeviceFronts = new WeakMap();
 
 exports.getDeviceFront = function(client, form) {
-  if (_knownDeviceFronts.has(client))
+  if (!form.deviceActor) {
+    return null;
+  }
+
+  if (_knownDeviceFronts.has(client)) {
     return _knownDeviceFronts.get(client);
+  }
 
   let front = new DeviceFront(client, form);
   _knownDeviceFronts.set(client, front);
   return front;
-}
+};

toolkit/devtools/server/actors/preference.js

@@ -116,8 +116,13 @@ let PreferenceFront = protocol.FrontClass(PreferenceActor, {
 const _knownPreferenceFronts = new WeakMap();
 
 exports.getPreferenceFront = function(client, form) {
-  if (_knownPreferenceFronts.has(client))
+  if (!form.preferenceActor) {
+    return null;
+  }
+
+  if (_knownPreferenceFronts.has(client)) {
     return _knownPreferenceFronts.get(client);
+  }
 
   let front = new PreferenceFront(client, form);
   _knownPreferenceFronts.set(client, front);