From a1ee5943b46e714162a28163377783c6caf84c08 Mon Sep 17 00:00:00 2001
From: yflory <yann.flory@xwiki.com>
Date: Mon, 26 Oct 2020 16:45:36 +0100
Subject: [PATCH] Improve tag UI

---
 .../src/less2/include/tokenfield.less         | 16 ++++
 www/common/common-interface.js                | 76 ++++++++++++++++++-
 2 files changed, 91 insertions(+), 1 deletion(-)

diff --git a/customize.dist/src/less2/include/tokenfield.less b/customize.dist/src/less2/include/tokenfield.less
index 42a06624c..e3d2c3e5d 100644
--- a/customize.dist/src/less2/include/tokenfield.less
+++ b/customize.dist/src/less2/include/tokenfield.less
@@ -20,6 +20,22 @@
         margin: 0 10px;
         padding: 0;
         width: ~"calc(100% - 20px)";
+        span.tokenfield-empty {
+            font-size: 14px;
+            font-style: italic;
+            color: lighten(@cryptpad_text_col, 10%);
+        }
+        .cp-tokenfield-container {
+            width: 100%;
+        }
+        .cp-tokenfield-form {
+            display: flex;
+            width: 100%;
+            input {
+                flex: 1;
+                min-width: 0 !important;
+            }
+        }
         .token {
             box-sizing: border-box;
             display: inline-flex;
diff --git a/www/common/common-interface.js b/www/common/common-interface.js
index 2e6c3a609..118931148 100644
--- a/www/common/common-interface.js
+++ b/www/common/common-interface.js
@@ -280,8 +280,82 @@ define([
         };
 
         var $root = $t.parent();
+
+        Messages.add = "Add"; // XXX
+        Messages.edit = "Edit"; // XXX
+        var $input = $root.find('.token-input');
+        var $button = $(h('button.btn.btn-primary', [
+            h('i.fa.fa-plus'),
+            h('span', Messages.add)
+        ]));
+
+
+        $button.click(function () {
+            $t.tokenfield('createToken', $input.val());
+        });
+
+        var $container = $(h('span.cp-tokenfield-container'));
+        var $form = $(h('span.cp-tokenfield-form'));
+        $container.insertAfter($input);
+
+        // Fix the UI to keep the "add" or "edit" button at the correct location
+        var isEdit = false;
+        var called = false;
+        var resetUI = function () {
+            called = true;
+            setTimeout(function () {
+                $container.find('.tokenfield-empty').remove();
+                var $tokens = $root.find('.token').prependTo($container);
+                if (!$tokens.length) {
+                    $container.prepend(h('span.tokenfield-empty', Messages.kanban_noTags));
+                }
+                $form.append($input);
+                $form.append($button);
+                if (isEdit) { $button.find('span').text(Messages.edit); }
+                else { $button.find('span').text(Messages.add); }
+                $container.append($form);
+                $input.focus();
+                isEdit = false;
+                called = false;
+            });
+        };
+        resetUI();
+
+        $t.on('tokenfield:removedtoken', function () {
+            resetUI();
+        });
+        $t.on('tokenfield:editedtoken', function () {
+            resetUI();
+        });
+        $t.on('tokenfield:createdtoken', function () {
+            $input.val('');
+            resetUI();
+        });
+        $t.on('tokenfield:edittoken', function () {
+            isEdit = true;
+        });
+
+        // Fix UI issue where the input could go outside of the container
+        var MutationObserver = window.MutationObserver;
+        var observer = new MutationObserver(function(mutations) {
+            if (called) { return; }
+            mutations.forEach(function(mutation) {
+                for (var i = 0; i < mutation.addedNodes.length; i++) {
+                    if (mutation.addedNodes[i].classList &&
+                        mutation.addedNodes[i].classList.contains('token-input')) {
+                        resetUI();
+                        break;
+                    }
+                }
+            });
+        });
+        observer.observe($root[0], {
+            childList: true,
+            subtree: false
+        });
+
         $t.on('tokenfield:removetoken', function () {
-            $root.find('.token-input').focus();
+            $input.focus();
         });
 
         t.preventDuplicates = function (cb) {