Ticket #43700: 43700.1.diff

src/wp-admin/css/login.css

@@ -163 +163 @@
 }
 
 .login #nav,
-.login #backtoblog {
+.login #backtoblog,
+.language-switcher {
         font-size: 13px;
         padding: 0 24px 0;
 }
@@ -248 +249 @@
         margin: 0;
 }
 
+#language-switcher {
+    padding: 0;
+    background: none;
+    box-shadow: none;
+}
+
+#language-switcher select {
+    height: 30px;
+}
+
+.screen-reader-text {
+    border: 0;
+    clip: rect(1px, 1px, 1px, 1px);
+    -webkit-clip-path: inset(50%);
+    clip-path: inset(50%);
+    height: 1px;
+    margin: -1px;
+    overflow: hidden;
+    padding: 0;
+    position: absolute;
+    width: 1px;
+    word-wrap: normal !important;
+}
+
+.language-switcher {
+    width: 320px;
+    margin: 0 auto 24px;
+    box-sizing: border-box;
+}
+
+.language-switcher label {
+    margin-right: .5em;
+}
+
+.language-switcher .dashicons {
+    line-height: 30px;
+}
+
 @-ms-viewport {
         width: device-width;
 }

src/wp-login.php

@@ -265 +265 @@
 
         </div>
 
+        <div class="language-switcher">
+                <form id="language-switcher" action="" method="GET">
+
+                <label for="language-switcher-locales">
+                        <span aria-hidden="true" class="dashicons dashicons-translation"></span>
+                        <span class="screen-reader-text">Select the language:</span>
+                </label>
+
+                <?php
+                        $args = array(
+                                'id'                          => 'language-switcher-locales',
+                                'name'                        => 'wp_lang',
+                                'selected'                    => ! empty( $_GET['wp_lang'] ) ? sanitize_text_field( $_GET['wp_lang'] ) : get_locale(),
+                                'show_available_translations' => false,
+                                'languages'                   => get_available_languages(),
+                        );
+
+                        /**
+                         * Filters default arguments for languages list on login screen.
+                         *
+                         * @since x.x.x
+                         *
+                         * @param Array  $args      Default arguments for dropdown languages on login page.
+                         */
+                        wp_dropdown_languages( apply_filters( 'wp_login_language_switcher_args', $args ) );
+                ?>
+
+                <?php if ( $interim_login ) { ?>
+                        <input type="hidden" name="interim-login" value="1" />
+                <?php } ?>
+
+                <?php if ( isset( $_GET['redirect_to'] ) && '' !== $_GET['redirect_to'] ) { ?>
+                        <input type="hidden" name="redirect_to" value="<?php echo sanitize_url( $_GET['redirect_to'] ) ?>" />
+                <?php } ?>
+
+                <?php if ( isset( $_GET['action'] ) && '' !== $_GET['action'] ) { ?>
+                        <input type="hidden" name="action" value="<?php echo sanitize_text_field( $_GET['action'] ) ?>" />
+                <?php } ?>
+
+                </form>
+        </div>
+
+        <script>
+        var switcherForm  = document.getElementById( 'language-switcher' );
+        var localesSelect = document.getElementById( 'language-switcher-locales' );
+        localesSelect.addEventListener( 'change', function() {
+                switcherForm.submit()
+        } );
+        </script>
+
         <?php if ( ! empty( $input_id ) ) : ?>
         <script type="text/javascript">
         try{document.getElementById('<?php echo $input_id; ?>').focus();}catch(e){}