? legacy_theme.txt
Index: lang/en_utf8/moodle.php
===================================================================
RCS file: /cvsroot/moodle/moodle/lang/en_utf8/moodle.php,v
retrieving revision 1.280
diff -u -r1.280 moodle.php
--- lang/en_utf8/moodle.php	9 Mar 2010 21:42:38 -0000	1.280
+++ lang/en_utf8/moodle.php	21 Mar 2010 06:45:59 -0000
@@ -227,11 +227,13 @@
 $string['choosecourse'] = 'Choose a course';
 $string['choosedots'] = 'Choose...';
 $string['chooseenrolmethod'] = 'Choose enrolment plugin';
+$string['chooselegacytheme'] = 'Choose for legacy browsers';
 $string['chooselivelogs'] = 'Or watch current activity';
 $string['chooselogs'] = 'Choose which logs you want to see';
 $string['choosereportfilter'] = 'Choose a filter for the report';
 $string['choosetheme'] = 'Choose theme';
 $string['chooseuser'] = 'Choose a user';
+$string['chosenlegacytheme'] = 'Chosen for legacy browsers';
 $string['city'] = 'City/town';
 $string['clambroken'] = 'Your administrator has enabled virus checking for file uploads but has misconfigured something.<br />Your file upload was NOT successful. Your administrator has been emailed to notify them so they can fix it.<br />Maybe try uploading this file later.';
 $string['clamdeletedfile'] = 'The file has been deleted';
@@ -924,6 +926,7 @@
 $string['latestnews'] = 'Latest News';
 $string['layouttable'] = 'Layout table';
 $string['leavetokeep'] = 'Leave blank to keep current password';
+$string['legacythemesaved'] = 'New legacy theme saved';
 $string['license'] = 'GPL License';
 $string['liketologin'] = 'Would you like to log in now with a full user account?';
 $string['list'] = 'List';
Index: lib/pagelib.php
===================================================================
RCS file: /cvsroot/moodle/moodle/lib/pagelib.php,v
retrieving revision 1.173
diff -u -r1.173 pagelib.php
--- lib/pagelib.php	11 Feb 2010 13:27:03 -0000	1.173
+++ lib/pagelib.php	21 Mar 2010 06:46:01 -0000
@@ -204,6 +204,12 @@
      */
     protected $_legacypageobject = null;
 
+    /**
+     * Associative array of browser shortnames (as used by check_browser_version)
+     * and their minimum required versions
+     */
+    protected $_legacybrowsers = array('MSIE' => 7.0);
+    
 /// Magic getter methods =============================================================
 /// Due to the __get magic below, you normally do not call these as $PAGE->magic_get_x
 /// methods, but instead use the $PAGE->x syntax.
@@ -1158,14 +1164,34 @@
                 case 'site':
                     if ($mnetpeertheme) {
                         return $mnetpeertheme;
+                    } else if(!empty($CFG->themelegacy) && $this->browser_is_outdated()) {
+                        return $CFG->themelegacy;
                     } else {
-                        return $CFG->theme;
+                    	return $CFG->theme;
                     }
             }
         }
     }
 
     /**
+     * Determines whether the current browser should
+     * default to the admin-selected legacy theme
+     *
+     * @return  true if legacy theme should be used, otherwise false
+     * 
+     */
+    protected function browser_is_outdated() {
+    	foreach($this->_legacybrowsers as $browser => $version) {
+    	    if(check_browser_version($browser, '0') &&
+    	       !check_browser_version($browser, $version)) {
+    	       	return true;
+    	    }
+    	}
+    	
+    	return false;
+    }
+    
+    /**
      * Sets ->pagetype from the script name. For example, if the script that was
      * run is mod/quiz/view.php, ->pagetype will be set to 'mod-quiz-view'.
      * @param string $script the path to the script that should be used to
Index: theme/index.php
===================================================================
RCS file: /cvsroot/moodle/moodle/theme/index.php,v
retrieving revision 1.58
diff -u -r1.58 index.php
--- theme/index.php	20 Mar 2010 22:16:00 -0000	1.58
+++ theme/index.php	21 Mar 2010 06:46:06 -0000
@@ -23,6 +23,7 @@
 require_once($CFG->libdir . '/adminlib.php');
 
 $choose = optional_param('choose', '', PARAM_SAFEDIR);
+$chooselegacy = optional_param('chooselegacy', '', PARAM_SAFEDIR);
 $reset  = optional_param('reset', 0, PARAM_BOOL);
 
 admin_externalpage_setup('themeselector');
@@ -53,6 +54,27 @@
 
     echo $OUTPUT->footer();
     exit;
+} else if ($chooselegacy and confirm_sesskey()) {
+    // The user has chosen one legacy theme from the list of all themes, show a
+    // 'You have chosen a new legacy theme' confirmation page.
+
+    $theme = theme_config::load($chooselegacy);
+    $chooselegacy = $theme->name;
+
+    set_config('themelegacy', $chooselegacy);
+
+    admin_externalpage_print_header();
+    echo $OUTPUT->heading(get_string('legacythemesaved'));
+
+    echo $OUTPUT->box_start();
+    $text = get_string('choosereadme', 'theme_'.$CFG->theme);
+    echo format_text($text, FORMAT_MOODLE);
+    echo $OUTPUT->box_end();
+
+    echo $OUTPUT->continue_button($CFG->wwwroot . '/' . $CFG->admin . '/index.php');
+
+    echo $OUTPUT->footer();
+    exit;
 }
 
 // Otherwise, show a list of themes.
@@ -96,14 +118,30 @@
     $infocell = $OUTPUT->heading($themename, 3);
     if ($themename != $CFG->theme) {
         $infocell .= $OUTPUT->single_button(new moodle_url('index.php', array('choose' => $themename, 'sesskey' => sesskey())), get_string('choose'), 'get');
+    }
 
+    if (empty($CFG->themelegacy) || $themename != $CFG->themelegacy) {
+        $infocell .= $OUTPUT->single_button(new moodle_url('index.php', array('chooselegacy' => $themename,
+                                                                              'sesskey' => sesskey())),
+                                            get_string('chooselegacytheme'),
+                                            'get');
+    } else if (!empty($CFG->themelegacy) && $themename == $CFG->themelegacy) {
+    	$infocell .= $OUTPUT->single_button('', get_string('chosenlegacytheme'), 'get', array('disabled' => 'true'));
     }
+    
     $row[] = $infocell;
 
     $table->data[$themename] = $row;
     if ($themename == $CFG->theme) {
         $table->rowclasses[$themename] = 'selectedtheme';
     }
+    if (!empty($CFG->themelegacy) && $themename == $CFG->themelegacy) {
+    	$existing_rowclasses = '';
+    	if(!empty($table->rowclasses[$themename])) {
+    		$existing_rowclasses = $table->rowclasses[$themename] . ' ';
+    	}
+    	$table->rowclasses[$themename] = $existing_rowclasses . 'selectedlegacytheme';
+    }
 }
 
 echo html_writer::table($table);