Bug 704295 - Autocomplete with a variable name that is equal to a prefix of a global variable makes it impossible to use the variable; r=msucan

browser/devtools/webconsole/AutocompletePopup.jsm

@@ -221,6 +221,9 @@ AutocompletePopup.prototype = {
    */
   clearItems: function AP_clearItems()
   {
+    // Reset the selectedIndex to -1 before clearing the list
+    this.selectedIndex = -1;
+
     while (this._list.hasChildNodes()) {
       this._list.removeChild(this._list.firstChild);
     }

browser/devtools/webconsole/HUDService.jsm

@@ -5223,7 +5223,7 @@ JSTerm.prototype = {
         break;
 
       case Ci.nsIDOMKeyEvent.DOM_VK_RETURN:
-        if (this.autocompletePopup.isOpen) {
+        if (this.autocompletePopup.isOpen && this.autocompletePopup.selectedIndex > -1) {
           this.acceptProposedCompletion();
         }
         else {
@@ -5439,13 +5439,10 @@ JSTerm.prototype = {
         popup.hidePopup();
       }
 
-      if (items.length > 0) {
-        popup.selectedIndex = 0;
-        if (items.length == 1) {
-          // onSelect is not fired when the popup is not open.
-          this.onAutocompleteSelect();
-        }
+      if (items.length == 1) {
+          popup.selectedIndex = 0;
       }
+      this.onAutocompleteSelect();
     }
 
     let accepted = false;

browser/devtools/webconsole/test/browser/Makefile.in

@@ -142,6 +142,7 @@ _BROWSER_TEST_FILES = \
 	browser_webconsole_bug_659907_console_dir.js \
 	browser_webconsole_bug_678816.js \
 	browser_webconsole_bug_664131_console_group.js \
+	browser_webconsole_bug_704295.js \
 	browser_gcli_inspect.js \
 	browser_gcli_integrate.js \
 	browser_gcli_require.js \

browser/devtools/webconsole/test/browser/browser_webconsole_bug_585991_autocomplete_keys.js

@@ -74,6 +74,9 @@ function tabLoaded() {
       return aItem.label == "item" + aIndex;
     }), true, "getItems returns back the same items");
 
+    is(popup.selectedIndex, -1, "no index is selected");
+    EventUtils.synthesizeKey("VK_DOWN", {});
+      
     let prefix = jsterm.inputNode.value.replace(/[\S]/g, " ");
 
     is(popup.selectedIndex, 0, "index 0 is selected");
@@ -124,6 +127,9 @@ function autocompletePopupHidden()
 
     is(popup.itemCount, 4, "popup.itemCount is correct");
 
+    is(popup.selectedIndex, -1, "no index is selected");
+    EventUtils.synthesizeKey("VK_DOWN", {});
+    
     let prefix = jsterm.inputNode.value.replace(/[\S]/g, " ");
 
     is(popup.selectedIndex, 0, "index 0 is selected");
@@ -167,6 +173,9 @@ function testReturnKey()
     ok(popup.isOpen, "popup is open");
 
     is(popup.itemCount, 4, "popup.itemCount is correct");
+    
+    is(popup.selectedIndex, -1, "no index is selected");
+    EventUtils.synthesizeKey("VK_DOWN", {});
 
     let prefix = jsterm.inputNode.value.replace(/[\S]/g, " ");
 

browser/devtools/webconsole/test/browser/browser_webconsole_bug_704295.js

@@ -0,0 +1,76 @@
+/* vim:set ts=2 sw=2 sts=2 et: */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is DevTools test code.
+ *
+ * The Initial Developer of the Original Code is Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2010
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *  Mihai Sucan <mihai.sucan@gmail.com>
+ *  Brijesh Patel <brijesh3105@gmail.com>
+ * 
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+// Tests for bug 704295
+
+const TEST_URI = "http://example.com/browser/browser/devtools/webconsole/test//browser/test-console.html";
+
+function test() {
+  addTab(TEST_URI);
+  browser.addEventListener("DOMContentLoaded", testCompletion, false);
+}
+
+function testCompletion() {
+  browser.removeEventListener("DOMContentLoaded", testCompletion, false);
+
+  openConsole();
+
+  var jsterm = HUDService.getHudByWindow(content).jsterm;
+  var input = jsterm.inputNode;
+
+  // Test typing 'var d = 5;' and press RETURN
+  jsterm.setInputValue("var d = ");
+  EventUtils.synthesizeKey("5", {});
+  EventUtils.synthesizeKey(";", {});
+  is(input.value, "var d = 5;", "var d = 5;");
+  is(jsterm.completeNode.value, "", "no completion");
+  EventUtils.synthesizeKey("VK_ENTER", {});
+  is(jsterm.completeNode.value, "", "clear completion on execute()");
+  
+  // Test typing 'var a = d' and press RETURN
+  jsterm.setInputValue("var a = ");
+  EventUtils.synthesizeKey("d", {});
+  is(input.value, "var a = d", "var a = d");
+  is(jsterm.completeNode.value, "", "no completion");
+  EventUtils.synthesizeKey("VK_ENTER", {});
+  is(jsterm.completeNode.value, "", "clear completion on execute()");
+  
+  jsterm = input = null;
+  finishTest();
+}
+

browser/devtools/webconsole/test/browser/browser_webconsole_completion.js

@@ -74,7 +74,7 @@ function testCompletion() {
   // Test typing 'document.getElem'.
   input.value = "document.getElem";
   input.setSelectionRange(16, 16);
-  jsterm.complete(jsterm.COMPLETE_HINT_ONLY);
+  jsterm.complete(jsterm.COMPLETE_FORWARD);
   is(input.value, "document.getElem", "'document.getElem' completion");
   is(jsterm.completeNode.value, "                entById", "'document.getElem' completion");