Show the message 'No files match "abc"' if the search results are empty.

chrome/browser/resources/file_manager/js/file_manager.js

Index: chrome/browser/resources/file_manager/js/file_manager.js
===================================================================
--- chrome/browser/resources/file_manager/js/file_manager.js	(revision 137095)
+++ chrome/browser/resources/file_manager/js/file_manager.js	(working copy)
@@ -4337,15 +4337,31 @@
   };
 
   FileManager.prototype.onSearchBoxUpdate_ = function(event) {
-    var searchString = this.dialogDom_.querySelector('#search-box').value;
+    var searchString = this.document_.getElementById('search-box').value;

[SeRya, 2012/05/15 14:08:03]

var searchBox = this.document_.getElementById('search-box');

[Oleg Eterevsky, 2012/05/15 14:16:51]

Why? I don't need it.

     if (searchString) {
       this.directoryModel_.addFilter(
           'searchbox',
           function(e) {
             return e.name.substr(0, searchString.length) == searchString;
           });
+
+      this.reportEmptySearchResults_ = function() {
+        if (this.directoryModel_.getFileList().length === 0) {
+          var text = strf('SEARCH_NO_MATCHING_FILES', searchString);
+          this.document_.getElementById('no-search-results').innerHTML = text;
+          this.document_.getElementById('no-search-results').removeAttribute(

[SeRya, 2012/05/15 14:08:03]

.hidden = false;

[Oleg Eterevsky, 2012/05/15 14:16:51]

Done.

+              'hidden');
+        }
+      }.bind(this);
+
+      this.directoryModel_.addEventListener(
+          'rescan-completed', this.reportEmptySearchResults_);

[SeRya, 2012/05/15 14:08:03]

The 'splice' event of fileList is better because it may be changed before rescan
happen (it is not completely wrong because rescan happens anyway but probably
with delay).

For instance we have code that instantly insert just copied file into the file
list not waiting rescan.

[Oleg Eterevsky, 2012/05/15 14:16:51]

I don't believe there is any difference.

     } else {
       this.directoryModel_.removeFilter('searchbox');
+      this.document_.getElementById('no-search-results').setAttribute('hidden',

[SeRya, 2012/05/15 14:08:03]

There is a setter for 'hidden'. Use ".hidden = true".

[Oleg Eterevsky, 2012/05/15 14:16:51]

Done.

+                                                                      'true');
+      this.directoryModel_.removeEventListener(
+          'rescan-completed', this.reportEmptySearchResults_);
     }
   };