Ticket #17115: 17115.4.diff

src/wp-admin/js/post.js

@@ -389 +389 @@
 
         postboxes.add_postbox_toggles(pagenow);
 
+        /**
+         *
+         * Disable the publish button for a new post, re-enable once
+         * some content is entered.
+         *
+         */
+        $( document ).on('tinymce-editor-init', function() {
+                /**
+                 * Bail if the current page is not post-new.php.
+                 */
+                if ( ! window.adminpage || 'post-new-php' !== window.adminpage ) {
+                        return;
+                }
+
+                /**
+                 * Cached selectors for the publish button, editor, title and excerpt.
+                 */
+                var $button  = $submitpost.find( ':submit, a.submitdelete, #post-preview' ),
+                        $editor  = tinymce.activeEditor,
+                        $title   = $( 'input#title' ),
+                        $excerpt = $( 'textarea#excerpt' ),
+
+                        /**
+                         * Only enable button once.
+                         */
+                        stopMonitoringAndResetStatus = function() {
+                                $editor.off( 'change' );
+                                $title.off( 'keyup' );
+                                $excerpt.off( 'keyup' );
+                                $button.removeClass( 'disabled' );
+                        };
+
+                /**
+                 * Disable publish for new posts.
+                 */
+                $button.addClass( 'disabled' );
+
+                /**
+                 * Monitor changes in the title, TinyMCE content and excerpt, enabling
+                 * the publish button (by removing the 'disabled' class).
+                 */
+                $editor.on( 'change', function() {
+                        stopMonitoringAndResetStatus();
+                });
+                $title.on( 'keyup', function() {
+                        stopMonitoringAndResetStatus();
+                });
+                $excerpt.on( 'keyup', function() {
+                        stopMonitoringAndResetStatus();
+                });
+        });
+
         // Clear the window name. Otherwise if this is a former preview window where the user navigated to edit another post,
         // and the first post is still being edited, clicking Preview there will use this window to show the preview.
         window.name = '';