From 4046211fa6483652d445b2cbb0b4aa77899dfbba Mon Sep 17 00:00:00 2001
From: ignaciogros <ignacio@gros.es>
Date: Fri, 26 Jun 2026 14:14:03 +0200
Subject: [PATCH 1/3] Fullscreen mode: hide navbar, expand viewer to full
 viewport.

---
 css/styles.css |  6 +++
 index.html     |  9 +++++
 js/app.js      | 99 +++++++++++++++++++++++++++++++-------------------
 lang/en.json   |  4 +-
 lang/es.json   |  4 +-
 5 files changed, 83 insertions(+), 39 deletions(-)

diff --git a/css/styles.css b/css/styles.css
index 9415b75..816a7bc 100644
--- a/css/styles.css
+++ b/css/styles.css
@@ -305,6 +305,12 @@ body {
     background-color: var(--surface-color);
 }
 
+/* Fullscreen mode: hide navbar, expand viewer to full viewport */
+body.fullscreen-mode .viewer-container {
+    height: 100vh;
+    margin-top: 0;
+}
+
 .content-frame {
     width: 100%;
     height: 100%;
diff --git a/index.html b/index.html
index aa1c3a5..fa0d685 100644
--- a/index.html
+++ b/index.html
@@ -236,6 +236,15 @@ <h5 class="modal-title" id="shareModalLabel" data-i18n="share.modalTitle">Share
                     <p id="allowDownloadDesc" class="text-muted small mt-1 mb-0" data-i18n="share.allowDownloadDesc">
                         Users accessing the link will see a button to download the original file.
                     </p>
+                    <div class="form-check mt-3">
+                        <input class="form-check-input" type="checkbox" id="fullscreenCheck" aria-describedby="fullscreenCheckDesc">
+                        <label class="form-check-label" for="fullscreenCheck" data-i18n="share.fullscreen">
+                            Content only
+                        </label>
+                    </div>
+                    <p id="fullscreenCheckDesc" class="text-muted small mt-1 mb-0" data-i18n="share.fullscreenDesc">
+                        Hides the toolbar. Ideal for sending to students.
+                    </p>
                     <div id="copySuccess" class="alert-success-text small mt-2 d-none" role="status" aria-live="polite" data-i18n="share.copied">
                         Link copied to clipboard!
                     </div>
diff --git a/js/app.js b/js/app.js
index 0032e36..a9c0beb 100644
--- a/js/app.js
+++ b/js/app.js
@@ -37,7 +37,8 @@
         zipWorker: null,  // Web Worker for ZIP extraction
         isRestoredContent: false,  // True if content was restored from IndexedDB
         currentErrorKey: null,  // Current error translation key (for language updates)
-        currentStorageWarningKey: null  // Current storage warning key (for language updates)
+        currentStorageWarningKey: null,  // Current storage warning key (for language updates)
+        fullscreenMode: false  // True when ?fullscreen=1 is present in the URL
     };
 
     // DOM Elements
@@ -69,6 +70,7 @@
         copySuccess: null,
         linkUpdated: null,
         allowDownloadCheck: null,
+        fullscreenCheck: null,
         // Footer element
         footerInfo: null,
         // URL label element
@@ -179,6 +181,7 @@
         elements.copySuccess = document.getElementById('copySuccess');
         elements.linkUpdated = document.getElementById('linkUpdated');
         elements.allowDownloadCheck = document.getElementById('allowDownloadCheck');
+        elements.fullscreenCheck = document.getElementById('fullscreenCheck');
         // Footer element
         elements.footerInfo = document.getElementById('footerInfo');
         // URL label element
@@ -1126,25 +1129,31 @@
         // Update UI
         elements.welcomeScreen.classList.add('d-none');
         elements.viewerContainer.classList.remove('d-none');
-        elements.topNavbar.classList.remove('d-none');
 
-        // Update package name in navbar
-        if (state.currentPackageName) {
-            elements.packageName.textContent = state.currentPackageName;
-            elements.packageName.title = state.currentPackageName;
-            // Show package name visually only for restored content
-            if (state.isRestoredContent) {
-                elements.packageName.classList.remove('visually-hidden');
+        if (state.fullscreenMode) {
+            // Keep navbar hidden; viewer fills full viewport via CSS
+            elements.topNavbar.classList.add('d-none');
+        } else {
+            elements.topNavbar.classList.remove('d-none');
+
+            // Update package name in navbar
+            if (state.currentPackageName) {
+                elements.packageName.textContent = state.currentPackageName;
+                elements.packageName.title = state.currentPackageName;
+                // Show package name visually only for restored content
+                if (state.isRestoredContent) {
+                    elements.packageName.classList.remove('visually-hidden');
+                }
             }
-        }
 
-        // Update share and download button visibility
-        updateShareButtonVisibility();
-        updateDownloadButtonVisibility();
+            // Update share and download button visibility
+            updateShareButtonVisibility();
+            updateDownloadButtonVisibility();
 
-        // Show open in new window and exit buttons
-        elements.btnNewWindow.classList.remove('d-none');
-        elements.btnLoadNew.classList.remove('d-none');
+            // Show open in new window and exit buttons
+            elements.btnNewWindow.classList.remove('d-none');
+            elements.btnLoadNew.classList.remove('d-none');
+        }
 
         // Set up history states: first mark current state as welcome, then push viewer state
         const welcomeState = { isWelcome: true };
@@ -1479,15 +1488,19 @@
     /**
      * Generate the share URL for the current content
      * @param {boolean} allowDownload - Whether to include the download parameter
+     * @param {boolean} fullscreen - Whether to hide the toolbar (fullscreen mode)
      * @returns {string} The share URL
      */
-    function generateShareUrl(allowDownload = false) {
+    function generateShareUrl(allowDownload = false, fullscreen = false) {
         const baseUrl = window.location.origin + window.location.pathname;
         const resourceUrl = state.contentFromUrl;
         let url = `${baseUrl}?url=${encodeURIComponent(resourceUrl)}`;
         if (allowDownload) {
             url += '&download=1';
         }
+        if (fullscreen) {
+            url += '&fullscreen=1';
+        }
         return url;
     }
 
@@ -1555,36 +1568,39 @@
      * Open the share modal with the generated URL
      */
     function openShareModal() {
-        // Initialize checkbox state based on config
+        // Initialize checkbox states
         elements.allowDownloadCheck.checked = config.allowDownloadByDefault;
+        elements.fullscreenCheck.checked = false;
 
-        // Generate URL with current checkbox state
-        const shareUrl = generateShareUrl(elements.allowDownloadCheck.checked);
+        // Generate URL with current checkbox states
+        const shareUrl = generateShareUrl(elements.allowDownloadCheck.checked, elements.fullscreenCheck.checked);
         elements.shareUrlInput.value = shareUrl;
 
         // Hide feedback messages
         elements.copySuccess.classList.add('d-none');
         elements.linkUpdated.classList.add('d-none');
 
-        // Remove any previous event listener to avoid duplicates
-        const newCheckbox = elements.allowDownloadCheck.cloneNode(true);
-        elements.allowDownloadCheck.parentNode.replaceChild(newCheckbox, elements.allowDownloadCheck);
-        elements.allowDownloadCheck = newCheckbox;
+        // Remove any previous event listeners to avoid duplicates
+        const newDownloadCheck = elements.allowDownloadCheck.cloneNode(true);
+        elements.allowDownloadCheck.parentNode.replaceChild(newDownloadCheck, elements.allowDownloadCheck);
+        elements.allowDownloadCheck = newDownloadCheck;
 
-        // Add event listener for checkbox changes
-        elements.allowDownloadCheck.addEventListener('change', function() {
-            const newUrl = generateShareUrl(this.checked);
-            elements.shareUrlInput.value = newUrl;
+        const newFullscreenCheck = elements.fullscreenCheck.cloneNode(true);
+        elements.fullscreenCheck.parentNode.replaceChild(newFullscreenCheck, elements.fullscreenCheck);
+        elements.fullscreenCheck = newFullscreenCheck;
 
-            // Show "Link updated" feedback
+        function updateShareUrl() {
+            const newUrl = generateShareUrl(elements.allowDownloadCheck.checked, elements.fullscreenCheck.checked);
+            elements.shareUrlInput.value = newUrl;
             elements.copySuccess.classList.add('d-none');
             elements.linkUpdated.classList.remove('d-none');
-
-            // Hide feedback after 2 seconds
             setTimeout(() => {
                 elements.linkUpdated.classList.add('d-none');
             }, 2000);
-        });
+        }
+
+        elements.allowDownloadCheck.addEventListener('change', updateShareUrl);
+        elements.fullscreenCheck.addEventListener('change', updateShareUrl);
 
         const modal = new bootstrap.Modal(elements.shareModal);
         modal.show();
@@ -1686,11 +1702,13 @@
             if (elements.viewerContainer.classList.contains('d-none')) {
                 elements.welcomeScreen.classList.add('d-none');
                 elements.viewerContainer.classList.remove('d-none');
-                elements.topNavbar.classList.remove('d-none');
-                elements.btnNewWindow.classList.remove('d-none');
-                elements.btnLoadNew.classList.remove('d-none');
-                updateShareButtonVisibility();
-                updateDownloadButtonVisibility();
+                if (!state.fullscreenMode) {
+                    elements.topNavbar.classList.remove('d-none');
+                    elements.btnNewWindow.classList.remove('d-none');
+                    elements.btnLoadNew.classList.remove('d-none');
+                    updateShareButtonVisibility();
+                    updateDownloadButtonVisibility();
+                }
             }
             // Increment counter to ignore the upcoming iframe load event
             state.historyNavigationCount++;
@@ -1788,6 +1806,13 @@
 
         // Check for URL parameter and auto-load if present
         const urlParams = new URLSearchParams(window.location.search);
+
+        // Detect fullscreen mode (?fullscreen=1) and apply body class immediately
+        if (urlParams.get('fullscreen') === '1') {
+            state.fullscreenMode = true;
+            document.body.classList.add('fullscreen-mode');
+        }
+
         if (urlParams.get('url')) {
             await checkUrlParameter();
         } else if (config.autoRestoreContent) {
diff --git a/lang/en.json b/lang/en.json
index 859ea51..2975c48 100644
--- a/lang/en.json
+++ b/lang/en.json
@@ -79,7 +79,9 @@
         "copied": "Link copied to clipboard!",
         "linkUpdated": "Link updated!",
         "allowDownload": "Download button",
-        "allowDownloadDesc": "Users accessing the link will see a button to download the original file."
+        "allowDownloadDesc": "Users accessing the link will see a button to download the original file.",
+        "fullscreen": "Content only",
+        "fullscreenDesc": "Hides the toolbar. Ideal for sending to students."
     },
     "download": {
         "tooltip": "Download original file"
diff --git a/lang/es.json b/lang/es.json
index 26b586e..a267a20 100644
--- a/lang/es.json
+++ b/lang/es.json
@@ -79,7 +79,9 @@
         "copied": "Enlace copiado al portapapeles.",
         "linkUpdated": "Enlace actualizado.",
         "allowDownload": "Botón de descarga",
-        "allowDownloadDesc": "Los usuarios que accedan al enlace verán un botón para descargar el fichero original."
+        "allowDownloadDesc": "Los usuarios que accedan al enlace verán un botón para descargar el fichero original.",
+        "fullscreen": "Solo contenido",
+        "fullscreenDesc": "Oculta la barra superior. Ideal para enviar a alumnos."
     },
     "download": {
         "tooltip": "Descargar fichero original"

From 11b429d2e9ef733fd4c72cb60da209bdb0717679 Mon Sep 17 00:00:00 2001
From: ignaciogros <ignacio@gros.es>
Date: Fri, 26 Jun 2026 14:19:10 +0200
Subject: [PATCH 2/3] Prepare v4.0.2 release.

---
 CHANGELOG.md      | 6 ++++++
 js/app.js         | 2 +-
 package-lock.json | 2 +-
 package.json      | 2 +-
 4 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4ed07af..bf029bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # CHANGELOG
 
+## v4.0.2 – 2026-07-07
+
+- Add fullscreen mode (hides navbar and expands viewer to full viewport) and a new share-link option to hide the toolbar, ideal for student-facing links.
+
+---
+
 ## v4.0.1 – 2026-06-09
 
 - Fix Dropbox, Nextcloud and ownCloud shared-link downloads by routing them through `github-proxy.exelearning.dev`.
diff --git a/js/app.js b/js/app.js
index a9c0beb..672f957 100644
--- a/js/app.js
+++ b/js/app.js
@@ -9,7 +9,7 @@
     // Configuration defaults — override via js/config.js (window.exeViewerConfig)
     const config = Object.assign({
         // Application version (displayed in footer)
-        version: '4.0.1',
+        version: '4.0.2',
         // Automatically restore and display content from IndexedDB on page load
         autoRestoreContent: true,
         // Open external links in a new window/tab (prevents navigation issues in iframes)
diff --git a/package-lock.json b/package-lock.json
index 655f6ce..f827a87 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
     "name": "exeviewer",
-    "version": "4.0.1",
+    "version": "4.0.2",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {
diff --git a/package.json b/package.json
index e6cbfe4..f314a18 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "exeviewer",
-    "version": "4.0.1",
+    "version": "4.0.2",
     "description": "A web application to view eXeLearning content packages (.zip/.elpx)",
     "main": "server.js",
     "type": "module",

From 91864196b7f8aa0b3d25c032ce528fac622a8319 Mon Sep 17 00:00:00 2001
From: ignaciogros <ignacio@gros.es>
Date: Sun, 28 Jun 2026 12:51:07 +0200
Subject: [PATCH 3/3] "Download button" and "Content only" are effectively
 mutually exclusive.

---
 js/app.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/js/app.js b/js/app.js
index 672f957..36b60f9 100644
--- a/js/app.js
+++ b/js/app.js
@@ -1599,8 +1599,14 @@
             }, 2000);
         }
 
-        elements.allowDownloadCheck.addEventListener('change', updateShareUrl);
-        elements.fullscreenCheck.addEventListener('change', updateShareUrl);
+        elements.allowDownloadCheck.addEventListener('change', () => {
+            if (elements.allowDownloadCheck.checked) elements.fullscreenCheck.checked = false;
+            updateShareUrl();
+        });
+        elements.fullscreenCheck.addEventListener('change', () => {
+            if (elements.fullscreenCheck.checked) elements.allowDownloadCheck.checked = false;
+            updateShareUrl();
+        });
 
         const modal = new bootstrap.Modal(elements.shareModal);
         modal.show();