From 7b272d3a26553683258ac9d098aa17da10209df0 Mon Sep 17 00:00:00 2001
From: Andrew Ozz <azaozz@git.wordpress.org>
Date: Wed, 2 Apr 2014 02:41:24 +0000
Subject: [PATCH] Drag and drop files on the editor to upload: add new argument
 to wp_editor() to enable, fixes #27465

git-svn-id: https://develop.svn.wordpress.org/trunk@27901 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-admin/edit-form-advanced.php               |  1 +
 src/wp-includes/class-wp-editor.php               | 15 +++++++++++++++
 src/wp-includes/js/media-views.js                 |  4 ++--
 .../js/tinymce/plugins/wordpress/plugin.js        | 14 ++++++++------
 4 files changed, 26 insertions(+), 8 deletions(-)

diff --git a/src/wp-admin/edit-form-advanced.php b/src/wp-admin/edit-form-advanced.php
index b1d0bf57fa..606ea6d5da 100644
--- a/src/wp-admin/edit-form-advanced.php
+++ b/src/wp-admin/edit-form-advanced.php
@@ -479,6 +479,7 @@ if ( post_type_supports($post_type, 'editor') ) {
 
 <?php wp_editor( $post->post_content, 'content', array(
 	'dfw' => true,
+	'drag_drop_upload' => true,
 	'tabfocus_elements' => 'insert-media-button,save-post',
 	'editor_height' => 360,
 	'tinymce' => array(
diff --git a/src/wp-includes/class-wp-editor.php b/src/wp-includes/class-wp-editor.php
index 9c6d7ec33c..3560e84a18 100644
--- a/src/wp-includes/class-wp-editor.php
+++ b/src/wp-includes/class-wp-editor.php
@@ -24,6 +24,7 @@ final class _WP_Editors {
 	private static $has_quicktags = false;
 	private static $has_medialib = false;
 	private static $editor_buttons_css = true;
+	private static $drag_drop_upload = false;
 
 	private function __construct() {}
 
@@ -38,6 +39,8 @@ final class _WP_Editors {
 	 *     @type bool       $media_buttons     Whether to show the Add Media/other media buttons.
 	 *     @type string     $default_editor    When both TinyMCE and Quicktags are used, set which
 	 *                                         editor is shown on page load. Default empty.
+	 *     @type bool       $drag_drop_upload  Whether to enable drag & drop on the editor uploading. Default false.
+	 *                                         Requires the media modal.
 	 *     @type string     $textarea_name     Give the textarea a unique name here. Square brackets
 	 *                                         can be used here. Default $editor_id.
 	 *     @type int        $textarea_rows     Number rows in the editor textarea. Default 20.
@@ -63,6 +66,7 @@ final class _WP_Editors {
 			'wpautop'           => true,
 			'media_buttons'     => true,
 			'default_editor'    => '',
+			'drag_drop_upload'  => false,
 			'textarea_name'     => $editor_id,
 			'textarea_rows'     => 20,
 			'tabindex'          => '',
@@ -124,6 +128,10 @@ final class _WP_Editors {
 		$switch_class = 'html-active';
 		$toolbar = $buttons = $autocomplete = '';
 
+		if ( $set['drag_drop_upload'] ) {
+			self::$drag_drop_upload = true;
+		}
+
 		if ( ! empty( $set['editor_height'] ) )
 			$height = ' style="height: ' . $set['editor_height'] . 'px"';
 		else
@@ -980,6 +988,13 @@ final class _WP_Editors {
 		tinyMCEPreInit = {
 			baseURL: "<?php echo self::$baseurl; ?>",
 			suffix: "<?php echo $suffix; ?>",
+			<?php
+
+			if ( self::$drag_drop_upload ) {
+				echo 'dragDropUpload: true,';
+			}
+
+			?>
 			mceInit: <?php echo $mceInit; ?>,
 			qtInit: <?php echo $qtInit; ?>,
 			ref: <?php echo self::_parse_init( $ref ); ?>,
diff --git a/src/wp-includes/js/media-views.js b/src/wp-includes/js/media-views.js
index fef88de2ce..def3993369 100644
--- a/src/wp-includes/js/media-views.js
+++ b/src/wp-includes/js/media-views.js
@@ -3131,8 +3131,8 @@
 
 			this.initialized = false;
 
-			// Bail if UA does not support drag'n'drop or File API.
-			if ( ! this.browserSupport() ) {
+			// Bail if not enabled or UA does not support drag'n'drop or File API.
+			if ( ! window.tinyMCEPreInit || ! window.tinyMCEPreInit.dragDropUpload || ! this.browserSupport() ) {
 				return this;
 			}
 
diff --git a/src/wp-includes/js/tinymce/plugins/wordpress/plugin.js b/src/wp-includes/js/tinymce/plugins/wordpress/plugin.js
index e8429671bb..234e2d0f98 100644
--- a/src/wp-includes/js/tinymce/plugins/wordpress/plugin.js
+++ b/src/wp-includes/js/tinymce/plugins/wordpress/plugin.js
@@ -311,12 +311,14 @@ tinymce.PluginManager.add( 'wordpress', function( editor ) {
 			window.jQuery( document ).triggerHandler( 'tinymce-editor-init', [editor] );
 		}
 
-		dom.bind( doc, 'dragstart dragend dragover drop', function( event ) {
-			if ( typeof window.jQuery !== 'undefined' ) {
-				// Trigger the jQuery handlers.
-				window.jQuery( document ).triggerHandler( event.type );
-			}
-		});
+		if ( window.tinyMCEPreInit && window.tinyMCEPreInit.dragDropUpload ) {
+			dom.bind( doc, 'dragstart dragend dragover drop', function( event ) {
+				if ( typeof window.jQuery !== 'undefined' ) {
+					// Trigger the jQuery handlers.
+					window.jQuery( document ).triggerHandler( event.type );
+				}
+			});
+		}
 	});
 
 	// Word count