From 73cab6df0d2133750a8e1bbdd385fd3ac1d99929 Mon Sep 17 00:00:00 2001
From: danpros <dan@danpros.com>
Date: Thu, 21 Jan 2021 21:11:03 +0700
Subject: [PATCH] Autocomplete tag

See: https://jqueryui.com/autocomplete/#multiple
---
 system/admin/views/add-content.html.php  | 49 ++++++++++++++++++++++++++++++++
 system/admin/views/edit-content.html.php | 49 ++++++++++++++++++++++++++++++++
 2 files changed, 98 insertions(+)

diff --git a/system/admin/views/add-content.html.php b/system/admin/views/add-content.html.php
index 50ce84d..dacea89 100644
--- a/system/admin/views/add-content.html.php
+++ b/system/admin/views/add-content.html.php
@@ -9,6 +9,8 @@ if ($type != 'is_post' && $type != 'is_image' && $type != 'is_video' && $type !=
 
 $desc = get_category_info(null);
 
+$tags = tag_cloud(true);
+
 ?>
 
 <link rel="stylesheet" type="text/css" href="<?php echo site_url() ?>system/admin/editor/css/editor.css"/>
@@ -20,6 +22,53 @@ $desc = get_category_info(null);
 <script type="text/javascript" src="<?php echo site_url() ?>system/admin/editor/js/Markdown.Extra.js"></script>
 <link rel="stylesheet" href="<?php echo site_url() ?>system/resources/css/jquery-ui.css">
 <script type="text/javascript" src="<?php echo site_url() ?>system/admin/editor/js/jquery.ajaxfileupload.js"></script>
+<script>
+$( function() {
+    var availableTags = [
+<?php foreach ($tags as $tag => $count):?>
+    "<?php echo tag_i18n($tag) ?>",
+<?php endforeach;?>
+    ];
+    function split( val ) {
+      return val.split( /,\s*/ );
+    }
+    function extractLast( term ) {
+      return split( term ).pop();
+    }
+ 
+    $( "#pTag" )
+      // don't navigate away from the field on tab when selecting an item
+      .on( "keydown", function( event ) {
+        if ( event.keyCode === $.ui.keyCode.TAB &&
+            $( this ).autocomplete( "instance" ).menu.active ) {
+          event.preventDefault();
+        }
+      })
+      .autocomplete({
+        minLength: 0,
+        source: function( request, response ) {
+          // delegate back to autocomplete, but extract the last term
+          response( $.ui.autocomplete.filter(
+            availableTags, extractLast( request.term ) ) );
+        },
+        focus: function() {
+          // prevent value inserted on focus
+          return false;
+        },
+        select: function( event, ui ) {
+          var terms = split( this.value );
+          // remove the current input
+          terms.pop();
+          // add the selected item
+          terms.push( ui.item.value );
+          // add placeholder to get the comma-and-space at the end
+          terms.push( "" );
+          this.value = terms.join( ", " );
+          return false;
+        }
+      });
+  } );
+</script>
 
 <?php if (isset($error)) { ?>
     <div class="error-message"><?php echo $error ?></div>
diff --git a/system/admin/views/edit-content.html.php b/system/admin/views/edit-content.html.php
index 0188e09..27c73d3 100644
--- a/system/admin/views/edit-content.html.php
+++ b/system/admin/views/edit-content.html.php
@@ -54,6 +54,8 @@ if (config('permalink.type') == 'post') {
     $delete = site_url() . date('Y/m', $postdate) . '/' . $oldmd . '/delete?destination=' . $destination;
 }
 
+$tags = tag_cloud(true);
+
 ?>
 <link rel="stylesheet" type="text/css" href="<?php echo site_url() ?>system/admin/editor/css/editor.css"/>
 <script src="<?php echo site_url() ?>system/resources/js/jquery.min.js"></script>
@@ -64,6 +66,53 @@ if (config('permalink.type') == 'post') {
 <script type="text/javascript" src="<?php echo site_url() ?>system/admin/editor/js/Markdown.Extra.js"></script>
 <link rel="stylesheet" href="<?php echo site_url() ?>system/resources/css/jquery-ui.css">
 <script type="text/javascript" src="<?php echo site_url() ?>system/admin/editor/js/jquery.ajaxfileupload.js"></script>
+<script>
+$( function() {
+    var availableTags = [
+<?php foreach ($tags as $tag => $count):?>
+    "<?php echo tag_i18n($tag) ?>",
+<?php endforeach;?>
+    ];
+    function split( val ) {
+      return val.split( /,\s*/ );
+    }
+    function extractLast( term ) {
+      return split( term ).pop();
+    }
+ 
+    $( "#pTag" )
+      // don't navigate away from the field on tab when selecting an item
+      .on( "keydown", function( event ) {
+        if ( event.keyCode === $.ui.keyCode.TAB &&
+            $( this ).autocomplete( "instance" ).menu.active ) {
+          event.preventDefault();
+        }
+      })
+      .autocomplete({
+        minLength: 0,
+        source: function( request, response ) {
+          // delegate back to autocomplete, but extract the last term
+          response( $.ui.autocomplete.filter(
+            availableTags, extractLast( request.term ) ) );
+        },
+        focus: function() {
+          // prevent value inserted on focus
+          return false;
+        },
+        select: function( event, ui ) {
+          var terms = split( this.value );
+          // remove the current input
+          terms.pop();
+          // add the selected item
+          terms.push( ui.item.value );
+          // add placeholder to get the comma-and-space at the end
+          terms.push( "" );
+          this.value = terms.join( ", " );
+          return false;
+        }
+      });
+  } );
+</script>
 
 <?php if (isset($error)) { ?>
     <div class="error-message"><?php echo $error ?></div>