Set proper focus on tab navigation for file manager dialog. Fixes #5107

- Show focus when the Tab key is pressed
 - Pressing the Enter key on C:\ drive does not open it on Windows

docs/en_US/release_notes.rst

@@ -11,6 +11,7 @@ notes for it.
 .. toctree::
    :maxdepth: 1
 
+   release_notes_4_19
    release_notes_4_18
    release_notes_4_17
    release_notes_4_16

docs/en_US/release_notes_4_19.rst

@@ -0,0 +1,20 @@
+************
+Version 4.19
+************
+
+Release date: 2020-03-05
+
+This release contains a number of bug fixes and new features since the release of pgAdmin4 4.18.
+
+New features
+************
+
+
+Housekeeping
+************
+
+
+Bug fixes
+*********
+
+| `Issue #5107 <https://redmine.postgresql.org/issues/5107>`_ -  Set proper focus on tab navigation for file manager dialog.

web/pgadmin/misc/file_manager/static/js/utility.js

@@ -748,8 +748,8 @@ define([
             return;
           if ($(this).find('.fa-file-text-o').length)
             $(this).click();
-          // If folder then first select and then double click to opn folder
+          // If folder then first select and then double click to open folder/drive
-          else if ($(this).find('.fa-folder-open').length) {
+          else if ($(this).find('.fa-folder-open').length || $(this).find('.fa-hdd-o').length) {
             $(this).click();
             setTimeout(() => { $(self).trigger('dblclick'); }, 10);
           }

web/pgadmin/misc/file_manager/static/scss/_file_manager.scss

@@ -346,3 +346,19 @@ table.tablesorter {
     outline: $input-focus-border-color auto 5px !important;
   }
 }
+
+/* Specific to IE11 where we want to highlight the focus on grid/row  */
+@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
+  table.tablesorter {
+    th:focus,
+    tr:focus {
+      border: 2px solid $input-focus-border-color !important;;
+    }
+  }
+
+  #contents {
+    li:focus {
+      border: 2px solid $input-focus-border-color !important;
+    }
+  }
+}