Bug 1136139 - Fix collapsing of search suggestions when there are none. r=florian

--HG--
extra : transplant_source : F%F4%3D%E7%FE%01%23%DA%B1f%A1D%DBF%20%A9%3C%08%02%84

browser/base/content/urlbarBindings.xml

@@ -1149,7 +1149,11 @@ file, You can obtain one at http://mozilla.org/MPL/2.0/.
         }
         else {
           this.removeAttribute("showonlysettings");
-          tree.collapsed = false;
+          // Uncollapse as long as we have a tree with a view which has >= 1 row.
+          // The autocomplete binding itself will take care of uncollapsing later,
+          // if we currently have no rows but end up having some in the future
+          // when the search string changes
+          tree.collapsed = !tree.view || !tree.view.rowCount;
         }
 
         // Show the current default engine in the top header of the panel.

browser/components/search/content/search.xml

@@ -638,6 +638,7 @@
                    autocompletesearchparam="searchbar-history"
                    maxrows="10"
                    completeselectedindex="true"
+                   minresultsforpopup="0"
                    xbl:inherits="disabled,disableautocomplete,searchengine,src,newlines">
         <!--
         Empty <box> to properly position the icon within the autocomplete
@@ -1087,9 +1088,10 @@
           let buttons = this.getSelectableButtons(aCycleEngines);
 
           let suggestionsHidden;
-          if (!aSkipSuggestions && popup.hasAttribute("showonlysettings")) {
-            aSkipSuggestions = true;
-            suggestionsHidden = true;
+          if (!aSkipSuggestions) {
+            let suggestions = document.getAnonymousElementByAttribute(popup, "anonid", "tree");
+            suggestionsHidden = suggestions.getAttribute("collapsed") == "true";
+            aSkipSuggestions = suggestionsHidden;
           }
 
           // If the last suggestion is selected, DOWN selects the first button.

browser/components/search/test/browser_searchbar_openpopup.js

@@ -13,6 +13,7 @@ const searchIcon = document.getAnonymousElementByAttribute(searchbar, "anonid",
 const goButton = document.getAnonymousElementByAttribute(searchbar, "anonid", "search-go-button");
 const textbox = searchbar._textbox;
 const searchPopup = document.getElementById("PopupSearchAutoComplete");
+const kValues = ["long text", "long text 2", "long text 3"];
 
 const isWindows = Services.appinfo.OS == "WINNT";
 const mouseDown = isWindows ? 2 : 1;
@@ -44,6 +45,37 @@ function* synthesizeNativeMouseClick(aElement) {
 
 add_task(function* init() {
   yield promiseNewEngine("testEngine.xml");
+
+  // First cleanup the form history in case other tests left things there.
+  yield new Promise((resolve, reject) => {
+    info("cleanup the search history");
+    searchbar.FormHistory.update({op: "remove", fieldname: "searchbar-history"},
+                                 {handleCompletion: resolve,
+                                  handleError: reject});
+  });
+
+  yield new Promise((resolve, reject) => {
+    info("adding search history values: " + kValues);
+    let ops = kValues.map(value => { return {op: "add",
+                                             fieldname: "searchbar-history",
+                                             value: value}
+                                   });
+    searchbar.FormHistory.update(ops, {
+      handleCompletion: function() {
+        registerCleanupFunction(() => {
+          info("removing search history values: " + kValues);
+          let ops =
+            kValues.map(value => { return {op: "remove",
+                                           fieldname: "searchbar-history",
+                                           value: value}
+                                 });
+          searchbar.FormHistory.update(ops);
+        });
+        resolve();
+      },
+      handleError: reject
+    });
+  });
 });
 
 // Adds a task that shouldn't show the search suggestions popup.

browser/themes/linux/searchbar.css

@@ -119,7 +119,7 @@ searchbar[oneoffui] .search-go-button:-moz-locale-dir(rtl) > .toolbarbutton-icon
   -moz-box-align: center;
 }
 
-.search-panel-current-engine:not([showonlysettings]) {
+.search-panel-current-engine {
   border-bottom: 1px solid #ccc;
 }
 
@@ -131,6 +131,10 @@ searchbar[oneoffui] .search-go-button:-moz-locale-dir(rtl) > .toolbarbutton-icon
   color: #666;
 }
 
+.search-panel-tree[collapsed=true] + .search-panel-header {
+  border-top: none;
+}
+
 .search-panel-current-input > label {
   margin: 0 0 !important;
 }

browser/themes/osx/searchbar.css

@@ -142,7 +142,7 @@ searchbar[oneoffui] .search-go-button:-moz-locale-dir(rtl) > .toolbarbutton-icon
   border-radius: 4px 4px 0 0;
 }
 
-.search-panel-current-engine:not([showonlysettings]) {
+.search-panel-current-engine {
   border-bottom: 1px solid #ccc;
 }
 
@@ -156,6 +156,10 @@ searchbar[oneoffui] .search-go-button:-moz-locale-dir(rtl) > .toolbarbutton-icon
   color: #666;
 }
 
+.search-panel-tree[collapsed=true] + .search-panel-header {
+  border-top: none;
+}
+
 .search-panel-current-input > label {
   margin: 0 0 !important;
 }

browser/themes/windows/searchbar.css

@@ -131,7 +131,7 @@ searchbar[oneoffui] .search-go-button:-moz-locale-dir(rtl) > .toolbarbutton-icon
   -moz-box-align: center;
 }
 
-.search-panel-current-engine:not([showonlysettings]) {
+.search-panel-current-engine {
   border-bottom: 1px solid #ccc;
 }
 
@@ -144,6 +144,10 @@ searchbar[oneoffui] .search-go-button:-moz-locale-dir(rtl) > .toolbarbutton-icon
   color: #666;
 }
 
+.search-panel-tree[collapsed=true] + .search-panel-header {
+  border-top: none;
+}
+
 .search-panel-current-input > label {
   margin: 0 0 !important;
 }

toolkit/components/search/nsSearchSuggestions.js

@@ -74,13 +74,6 @@ SuggestAutoComplete.prototype = {
       finalComments = finalComments.concat(comments);
     }
 
-    // If no result, add the search term so that the panel of the new UI is shown anyway.
-    if (!finalResults.length &&
-        Services.prefs.getBoolPref("browser.search.showOneOffButtons")) {
-      finalResults.push(results.term);
-      finalComments.push("");
-    }
-
     // Notify the FE of our new results
     this.onResultsReady(results.term, finalResults, finalComments, results.formHistoryResult);
   },

toolkit/content/widgets/autocomplete.xml

@@ -713,9 +713,9 @@
 
           var height = rows * bx.rowHeight;
 
-          if (height == 0)
+          if (height == 0) {
             this.tree.setAttribute("collapsed", "true");
-          else {
+          } else {
             if (this.tree.hasAttribute("collapsed"))
               this.tree.removeAttribute("collapsed");