Implement basic frontend notification system

web/assets/css/style.css

@@ -170,7 +170,25 @@ html, body {
   font-size: 16px;
 }
 
-@media only screen and (max-width: 750px) {
+.container #notifications {
+  position: fixed;
+  bottom: 0;
+}
+
+.container #notifications div {
+  width: 100vw;
+  padding: 10px 20px;
+}
+
+.container #notifications div.error {
+  background-color: #ff3d3d;
+}
+
+.container #notifications div.success {
+  background-color: #389b38;
+}
+
+@media only screen and (max-width: 650px) {
   .navigation {
     padding: 0 20px;
     width: calc(100vw - 40px);

web/assets/css/style.css.map

@@ -1,6 +1,6 @@
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     "version": 3,
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     "sources": [
         "style.scss"
     ],

web/assets/css/style.scss

@@ -127,6 +127,20 @@ html, body {
             font-size: 16px;
         }
     }
+    & #notifications {
+        position: fixed;
+        bottom: 0;
+        & div {
+            width: 100vw;
+            padding: 10px 20px;
+            &.error {
+                background-color: #ff3d3d;
+            }
+            &.success {
+                background-color: #389b38;
+            }
+        }
+    }
 }
 
 @media only screen and (max-width: 650px) {

web/assets/js/autoload.js

@@ -2,6 +2,7 @@
 import * as api from "./api.js";
 import * as buttons from "./buttons.js";
 import * as spinner from "./spinner.js";
+import * as notifications from "./notifications.js";
 
 // Set up the buttons
 buttons.setupButtons();
@@ -10,10 +11,13 @@ buttons.setupKeybinds();
 // Load the API information
 async function loadAPIInformation() {
     const response = await api.getAPIInformation();
-    if (response.ok) {
+    if (!response.ok) {
-        const data = await response.json();
+        const data = await response.text();
-        document.getElementById("version").innerText = data.version;
+        notifications.error("Failed fetching the API information: <b>" + data + "</b>");
+        return;
     }
+    const data = await response.json();
+    document.getElementById("version").innerText = data.version;
 }
 loadAPIInformation();
 

web/assets/js/buttons.js

@@ -2,6 +2,7 @@
 import * as api from "./api.js";
 import * as autoload from "./autoload.js";
 import * as spinner from "./spinner.js";
+import * as notifications from "./notifications.js";
 
 // setupKeybinds initializes the keybinds for the buttons
 export function setupKeybinds() {
@@ -56,7 +57,7 @@ export function setupButtons() {
             // Create the paste
             const response = await api.createPaste(input.value);
             if (!response.ok) {
-                alert("Error:\n\n" + data);
+                notifications.error("Failed creating the paste: <b>" + data + "</b>");
                 return;
             }
             const data = await response.json();
@@ -81,7 +82,7 @@ export function setupButtons() {
             const response = await api.deletePaste(autoload.PASTE_ID, deletionToken);
             const data = await response.text();
             if (!response.ok) {
-                alert("Error:\n\n" + data);
+                notifications.error("Failed deleting the paste: <b>" + data + "</b>");
                 return;
             }
 
@@ -98,6 +99,7 @@ export function setupButtons() {
             
             // Copy the code
             await navigator.clipboard.writeText(document.getElementById("code").innerText);
+            notifications.success("Copied the code!");
         });
     });
 }
@@ -106,7 +108,7 @@ export function setupButtons() {
 async function askClipboardPermissions() {
     try {
         const state = await navigator.permissions.query({
-            name: "clipbaord-write"
+            name: "clipboard-write"
         });
         return state === "granted";
     } catch (error) {

web/assets/js/notifications.js

@@ -0,0 +1,24 @@
+// element holds the notification containers DOM element
+const element = document.getElementById("notifications");
+
+// error shows an error notifications
+export function error(message) {
+    create("error", message, 3000);
+}
+
+// success shows a success notifications
+export function success(message) {
+    create("success", message, 3000);
+}
+
+// create creates a new notification
+function create(type, message, duration) {
+    const node = document.createElement("div");
+    node.classList.add(type);
+    node.innerHTML = message;
+
+    element.appendChild(node);
+    setTimeout(function() {
+        element.removeChild(node);
+    }, duration);
+}

web/index.html

@@ -56,6 +56,7 @@
         </div>
     </div>
     <div class="container">
+        <div id="notifications"></div>
         <div id="linenos"><span>></span></div>
         <div id="content">
             <div id="code"></div>