Fix tab container logic bug (#2840)

# Description of Changes

Please provide a summary of the changes, including:

Overhauled logic for tab-containers on sign page to fix compatibility
issues with new Tooltip system

Closes #(2839)

---

## Checklist

### General

- [x ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ x] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ x] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md)
(if applicable)
- [ x] I have performed a self-review of my own code
- [x ] My changes generate no new warnings

### Documentation

- [ x] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ x] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ x] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ x] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#6-testing)
for more details.

src/main/resources/static/js/navbar.js

@@ -43,37 +43,36 @@ function toolsManager() {
 }
 
 window.tooltipSetup = () => {
-  const tooltipElements = document.querySelectorAll("[title]");
+  const tooltipElements = document.querySelectorAll('[title]');
 
   tooltipElements.forEach((element) => {
-    const tooltipText = element.getAttribute("title");
+    const tooltipText = element.getAttribute('title');
-    element.removeAttribute("title");
+    element.removeAttribute('title');
-
+    element.setAttribute('data-title, tooltipText');
-    const customTooltip = document.createElement("div");
+    const customTooltip = document.createElement('div');
-    customTooltip.className = "btn-tooltip";
+    customTooltip.className = 'btn-tooltip';
     customTooltip.textContent = tooltipText;
 
     document.body.appendChild(customTooltip);
 
-    element.addEventListener("mouseenter", (event) => {
+    element.addEventListener('mouseenter', (event) => {
-      customTooltip.style.display = "block";
+      customTooltip.style.display = 'block';
       customTooltip.style.left = `${event.pageX + 10}px`; // Position tooltip slightly away from the cursor
       customTooltip.style.top = `${event.pageY + 10}px`;
     });
 
     // Update the position of the tooltip as the user moves the mouse
-    element.addEventListener("mousemove", (event) => {
+    element.addEventListener('mousemove', (event) => {
       customTooltip.style.left = `${event.pageX + 10}px`;
       customTooltip.style.top = `${event.pageY + 10}px`;
     });
 
-
     // Hide the tooltip when the mouse leaves
-    element.addEventListener("mouseleave", () => {
+    element.addEventListener('mouseleave', () => {
-      customTooltip.style.display = "none";
+      customTooltip.style.display = 'none';
     });
   });
-}
+};
-document.addEventListener("DOMContentLoaded", () => {
+document.addEventListener('DOMContentLoaded', () => {
   tooltipSetup();
 });

src/main/resources/static/js/tab-container.js

@@ -1,15 +1,14 @@
 TabContainer = {
   initTabGroups() {
-    const groups = document.querySelectorAll(".tab-group");
+    const groups = document.querySelectorAll('.tab-group');
     const unloadedGroups = [...groups].filter((g) => !g.initialised);
     unloadedGroups.forEach((group) => {
-      const containers = group.querySelectorAll(".tab-container");
+      const containers = group.querySelectorAll('.tab-container');
-      const tabTitles = [...containers].map((c) => c.getAttribute("title"));
+      const tabTitles = [...containers].map((c) => c.getAttribute('data-title'));
-
+      const tabList = document.createElement('div');
-      const tabList = document.createElement("div");
+      tabList.classList.add('tab-buttons');
-      tabList.classList.add("tab-buttons");
       tabTitles.forEach((title) => {
-        const tabButton = document.createElement("button");
+        const tabButton = document.createElement('button');
         tabButton.innerHTML = title;
         tabButton.onclick = (e) => {
           this.setActiveTab(e.target);
@@ -24,15 +23,15 @@ TabContainer = {
     });
   },
   setActiveTab(tabButton) {
-    const group = tabButton.closest(".tab-group");
+    const group = tabButton.closest('.tab-group');
 
-    group.querySelectorAll(".active").forEach((el) => el.classList.remove("active"));
+    group.querySelectorAll('.active').forEach((el) => el.classList.remove('active'));
 
-    tabButton.classList.add("active");
+    tabButton.classList.add('active');
-    group.querySelector(`[title="${tabButton.innerHTML}"]`).classList.add("active");
+    group.querySelector(`[data-title="${tabButton.innerHTML}"]`).classList.add('active');
   },
 };
 
-document.addEventListener("DOMContentLoaded", () => {
+document.addEventListener('DOMContentLoaded', () => {
   TabContainer.initTabGroups();
 });

src/main/resources/templates/sign.html

@@ -43,13 +43,13 @@
             </div>
             <script type="module" th:src="@{'/pdfjs-legacy/pdf.mjs'}"></script>
             <div class="tab-group show-on-file-selected">
-              <div class="tab-container" th:title="#{sign.upload}">
+              <div class="tab-container" th:title="#{sign.upload}" th:data-title="#{sign.upload}">
                 <div
                   th:replace="~{fragments/common :: fileSelector(name='image-upload', disableMultipleFiles=false, multipleInputsForSingleRequest=true, accept='image/*', inputText=#{imgPrompt})}">
                 </div>
               </div>
 
-              <div class="tab-container drawing-pad-container" th:title="#{sign.draw}">
+              <div class="tab-container drawing-pad-container" th:title="#{sign.draw}" th:data-title="#{sign.draw}">
                 <canvas id="drawing-pad-canvas"></canvas>
                 <br>
                 <button id="clear-signature" class="btn btn-outline-danger mt-2" onclick="signaturePad.clear()"
@@ -58,7 +58,7 @@
                   th:text="#{sign.add}"></button>
               </div>
 
-              <div class="tab-container" th:title="#{sign.saved}">
+              <div class="tab-container" th:title="#{sign.saved}" th:data-title="#{sign.saved}">
                 <div class="saved-signatures-section" th:if="${not #lists.isEmpty(signatures)}">
 
                   <!-- Preview Modal -->
@@ -130,7 +130,7 @@
                 </div>
               </div>
 
-              <div class="tab-container" th:title="#{sign.text}">
+              <div class="tab-container" th:title="#{sign.text}" th:data-title="#{sign.text}">
                 <label class="form-check-label" for="sigText" th:text="#{text}"></label>
                 <textarea class="form-control" id="sigText" name="sigText" rows="3"></textarea>
                 <label th:text="#{font}"></label>