MDL-40759 icons: filepicker

Use font awesome svg icons for files in the file picker. Move the old icons to bootstrapbase.

lib/classes/output/icon_system_fontawesome.php

@@ -290,26 +290,26 @@ public function get_core_icon_map() {
             'core:f/flash-96' => 'fa-flash',
             'core:f/flash-128' => 'fa-flash',
             'core:f/flash-256' => 'fa-flash',
-            'core:f/folder' => 'fa-folder',
-            'core:f/folder-24' => 'fa-folder',
-            'core:f/folder-32' => 'fa-folder',
-            'core:f/folder-48' => 'fa-folder',
-            'core:f/folder-64' => 'fa-folder',
-            'core:f/folder-72' => 'fa-folder',
-            'core:f/folder-80' => 'fa-folder',
-            'core:f/folder-96' => 'fa-folder',
-            'core:f/folder-128' => 'fa-folder',
-            'core:f/folder-256' => 'fa-folder',
-            'core:f/folder-open' => 'fa-folder-open',
-            'core:f/folder-open-24' => 'fa-folder-open',
-            'core:f/folder-open-32' => 'fa-folder-open',
-            'core:f/folder-open-48' => 'fa-folder-open',
-            'core:f/folder-open-64' => 'fa-folder-open',
-            'core:f/folder-open-72' => 'fa-folder-open',
-            'core:f/folder-open-80' => 'fa-folder-open',
-            'core:f/folder-open-96' => 'fa-folder-open',
-            'core:f/folder-open-128' => 'fa-folder-open',
-            'core:f/folder-open-256' => 'fa-folder-open',
+            'core:f/folder' => 'fa-folder-o',
+            'core:f/folder-24' => 'fa-folder-o',
+            'core:f/folder-32' => 'fa-folder-o',
+            'core:f/folder-48' => 'fa-folder-o',
+            'core:f/folder-64' => 'fa-folder-o',
+            'core:f/folder-72' => 'fa-folder-o',
+            'core:f/folder-80' => 'fa-folder-o',
+            'core:f/folder-96' => 'fa-folder-o',
+            'core:f/folder-128' => 'fa-folder-o',
+            'core:f/folder-256' => 'fa-folder-o',
+            'core:f/folder-open' => 'fa-folder-open-o',
+            'core:f/folder-open-24' => 'fa-folder-open-o',
+            'core:f/folder-open-32' => 'fa-folder-open-o',
+            'core:f/folder-open-48' => 'fa-folder-open-o',
+            'core:f/folder-open-64' => 'fa-folder-open-o',
+            'core:f/folder-open-72' => 'fa-folder-open-o',
+            'core:f/folder-open-80' => 'fa-folder-open-o',
+            'core:f/folder-open-96' => 'fa-folder-open-o',
+            'core:f/folder-open-128' => 'fa-folder-open-o',
+            'core:f/folder-open-256' => 'fa-folder-open-o',
             'core:f/gif' => 'fa-file-image-o',
             'core:f/gif-24' => 'fa-file-image-o',
             'core:f/gif-32' => 'fa-file-image-o',
@@ -583,7 +583,7 @@ public function get_core_icon_map() {
             'theme:fp/add_file' => 'fa-file-o',
             'theme:fp/alias' => 'fa-link',
             'theme:fp/check' => 'fa-check',
-            'theme:fp/create_folder' => 'fa-folder',
+            'theme:fp/create_folder' => 'fa-folder-o',
             'theme:fp/cross' => 'fa-remove',
             'theme:fp/download_all' => 'fa-download',
             'theme:fp/help' => 'fa-question-circle',

lib/filelib.php

@@ -1577,7 +1577,8 @@ function file_folder_icon($iconsize = null) {
     if (!array_key_exists($iconsize, $cached)) {
         foreach ($iconpostfixes as $size => $postfix) {
             $fullname = $CFG->dirroot.'/pix/f/folder'.$postfix;
-            if ($iconsize >= $size && (file_exists($fullname.'.png') || file_exists($fullname.'.gif'))) {
+            if ($iconsize >= $size &&
+                    (file_exists($fullname.'.svg') || file_exists($fullname.'.png') || file_exists($fullname.'.gif'))) {
                 $cached[$iconsize] = 'f/folder'.$postfix;
                 break;
             }
@@ -2348,7 +2349,7 @@ function send_stored_file($stored_file, $lifetime=null, $filter=0, $forcedownloa
                 $size = 256;
             }
             $fileicon = file_file_icon($stored_file, $size);
-            send_file($CFG->dirroot.'/pix/'.$fileicon.'.png', basename($fileicon).'.png');
+            send_file($CFG->dirroot.'/pix/'.$fileicon.'.svg', basename($fileicon).'.svg');
         } else {
             // preview images have fixed cache lifetime and they ignore forced download
             // (they are generated by GD and therefore they are considered reasonably safe).