From 259437728e09431bf2fb33f12127ca4c499579db Mon Sep 17 00:00:00 2001
From: Anton Khorev <tony29@yandex.ru>
Date: Fri, 7 Jun 2024 17:48:05 +0300
Subject: [PATCH] Switch between richtext edit/preview using Bootstrap tab
 panes

---
 app/assets/javascripts/richtext.js        | 31 ++---------------------
 app/views/shared/_richtext_field.html.erb | 12 ++++++---
 2 files changed, 10 insertions(+), 33 deletions(-)

diff --git a/app/assets/javascripts/richtext.js b/app/assets/javascripts/richtext.js
index cfba5c923..259b914de 100644
--- a/app/assets/javascripts/richtext.js
+++ b/app/assets/javascripts/richtext.js
@@ -1,7 +1,4 @@
 $(document).ready(function () {
-  /* Hide the preview panes */
-  $(".richtext_preview").hide();
-
   /*
    * When the text in an edit pane is changed, clear the contents of
    * the associated preview pne so that it will be regenerated when
@@ -11,29 +8,10 @@ $(document).ready(function () {
     $(this).parents(".richtext_container").find(".richtext_preview").empty();
   });
 
-  /* Disable all the edit buttons */
-  $(".richtext_doedit").prop("disabled", true);
-
   /*
-   * Install a click handler to switch to edit mode when the
-   * edit button is pressed.
+   * Install a handler to switch to preview mode
    */
-  $(".richtext_doedit").click(function () {
-    var editor = $(this).parents(".richtext_container").find("textarea");
-    var preview = $(this).parents(".richtext_container").find(".richtext_preview");
-
-    preview.hide();
-    editor.show();
-
-    $(this).parents(".richtext_container").find(".richtext_dopreview").prop("disabled", false).removeClass("active");
-    $(this).prop("disabled", true).addClass("active");
-  });
-
-  /*
-   * Install a click handler to switch to preview mode when the
-   * preview button is pressed.
-   */
-  $(".richtext_dopreview").click(function () {
+  $(".richtext_dopreview").on("show.bs.tab", function () {
     var editor = $(this).parents(".richtext_container").find("textarea");
     var preview = $(this).parents(".richtext_container").find(".richtext_preview");
     var minHeight = editor.outerHeight() - preview.outerHeight() + preview.height();
@@ -49,11 +27,6 @@ $(document).ready(function () {
       });
     }
 
-    editor.hide();
     preview.css("min-height", minHeight + "px");
-    preview.show();
-
-    $(this).parents(".richtext_container").find(".richtext_doedit").prop("disabled", false).removeClass("active");
-    $(this).prop("disabled", true).addClass("active");
   });
 });
diff --git a/app/views/shared/_richtext_field.html.erb b/app/views/shared/_richtext_field.html.erb
index 74d609cd5..238175762 100644
--- a/app/views/shared/_richtext_field.html.erb
+++ b/app/views/shared/_richtext_field.html.erb
@@ -2,14 +2,18 @@
   <div id="<%= id %>_content" class="col-sm-8 mb-3 mb-sm-0 richtext_content">
     <ul class="nav nav-tabs mb-3" role="tablist">
       <li class="nav-item">
-        <button type="button" class="nav-link active richtext_doedit"><%= t(".edit") %></button>
+        <button type="button" class="nav-link active" data-bs-toggle="tab" data-bs-target="#<%= id %>_edit"><%= t(".edit") %></button>
       </li>
       <li class="nav-item">
-        <button type="button" class="nav-link richtext_dopreview"><%= t(".preview") %></button>
+        <button type="button" class="nav-link richtext_dopreview" data-bs-toggle="tab" data-bs-target="#<%= id %>_preview"><%= t(".preview") %></button>
       </li>
     </ul>
-    <%= builder.text_area(attribute, options.merge(:wrapper => false, "data-preview-url" => preview_url(:type => type))) %>
-    <div id="<%= id %>_preview" class="richtext_preview richtext text-break"></div>
+    <div class="tab-content">
+      <div id="<%= id %>_edit" class="tab-pane show active">
+        <%= builder.text_area(attribute, options.merge(:wrapper => false, "data-preview-url" => preview_url(:type => type))) %>
+      </div>
+      <div id="<%= id %>_preview" class="tab-pane richtext_preview richtext text-break"></div>
+    </div>
   </div>
   <div id="<%= id %>_help" class="col-sm-4 richtext_help">
     <div class="card bg-body-tertiary h-100">
-- 
2.39.5