Improve the frontend (API v2 functionalities) (#18)

* Fix line number height issue

* Fix notification container position

* Remove line wrapping

* Switch to the new API

* Rework JS & implement paste editing

* Implement paste reports

* Document the report webhook

API.md

@@ -173,9 +173,12 @@ POST /api/v2/pastes/{paste_id}/report
 **Response:**
 ```jsonc
 {
+    "success": true,        // Whether or not the report was received successfully (this is returned by the report webhook to allow custom errors)
     "message": "message"    // An optional message to display to the reporting user
 }
 ```
 
 **Notes:**
 * The endpoint is only available if the report system is enabled. Otherwise it will return a `404 Not Found` error.
+* The request for this endpoint is the exact same that will reach the webhook.
+* The response from this endpoint is the exact same that pasty expects from the webhook.

internal/report/report.go

@@ -17,6 +17,7 @@ type ReportRequest struct {
 
 // ReportResponse represents a report response received from the report webhook
 type ReportResponse struct {
+	Success bool   `json:"success"`
 	Message string `json:"message"`
 }
 

web/assets/css/style.css

@@ -7,6 +7,28 @@ html, body {
   font-family: 'Source Code Pro', monospace;
 }
 
+::-webkit-scrollbar {
+  width: 10px;
+  height: 10px;
+}
+
+::-webkit-scrollbar-track {
+  background: none;
+}
+
+::-webkit-scrollbar-thumb {
+  background: #444444;
+  border-radius: 5px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+  background: #333333;
+}
+
+::-webkit-scrollbar-thumb:active {
+  background: #222222;
+}
+
 .hidden {
   display: none;
 }
@@ -33,7 +55,15 @@ html, body {
   }
 }
 
-#spinner {
+#spinner-container {
+  position: fixed;
+  top: 130px;
+  right: 20px;
+  height: 50px;
+  width: 50px;
+}
+
+#spinner-container .spinner {
   -webkit-animation: .75s linear infinite spinner;
   animation: .75s linear infinite spinner;
   -webkit-animation-play-state: inherit;
@@ -41,16 +71,32 @@ html, body {
   border: solid 5px #ffffff;
   border-bottom-color: transparent;
   border-radius: 50%;
-  height: 50px;
+  height: 100%;
-  width: 50px;
+  width: 100%;
-  position: fixed;
-  top: 130px;
-  right: 20px;
   -webkit-transform: translate3d(-50%, -50%, 0);
   transform: translate3d(-50%, -50%, 0);
   will-change: transform;
 }
 
+#btn_report {
+  position: fixed;
+  bottom: 60px;
+  right: 30px;
+}
+
+#btn_report svg {
+  -webkit-transition: all 250ms;
+  transition: all 250ms;
+}
+
+#btn_report:hover {
+  cursor: pointer;
+}
+
+#btn_report:hover svg {
+  stroke: #2daa57;
+}
+
 .navigation {
   position: fixed;
   top: 0;
@@ -132,44 +178,57 @@ html, body {
 }
 
 .container #content {
+  -webkit-box-sizing: border-box;
+          box-sizing: border-box;
   padding: 20px;
   width: calc(100vw - 50px);
 }
 
 .container #content #code {
-  word-break: break-all;
+  white-space: pre;
-  white-space: pre-wrap;
+  line-height: 20px;
+  overflow-x: auto;
 }
 
 .container #content #input {
   height: 100%;
   width: 100%;
+  padding: 0;
   background-color: transparent;
   border: none;
   outline: none;
   color: inherit;
   resize: none;
-  font-size: 16px;
+  font: inherit;
+  line-height: 20px;
 }
 
 .container #notifications {
   position: fixed;
-  bottom: 0;
+  bottom: 30px;
+  right: 0;
+  padding: 20px;
 }
 
 .container #notifications div {
-  width: 100vw;
+  border-radius: 10px;
-  padding: 10px 20px;
+  width: 500px;
+  margin-top: 20px;
+  padding: 20px 30px;
 }
 
 .container #notifications div.error {
-  background-color: #ff3d3d;
+  background-color: #ff4d4d;
 }
 
 .container #notifications div.success {
   background-color: #389b38;
 }
 
+.container #notifications div:first-child {
+  margin-top: 0;
+}
+
 #footer {
   position: fixed;
   bottom: 0;
@@ -236,6 +295,15 @@ html, body {
   .navigation .meta #version {
     display: none;
   }
+  .container #notifications {
+    padding: 0;
+  }
+  .container #notifications div {
+    border-radius: 0;
+    width: 100vw;
+    -webkit-box-sizing: border-box;
+            box-sizing: border-box;
+  }
   #footer #flex {
     margin: 0 0 0 25px;
   }

web/assets/css/style.scss

@@ -7,6 +7,29 @@ html, body {
     color: #ffffff;
     font-family: 'Source Code Pro', monospace;
 }
+
+::-webkit-scrollbar {
+    width: 10px;
+    height: 10px;
+}
+  
+::-webkit-scrollbar-track {
+    background: none;
+}
+  
+::-webkit-scrollbar-thumb {
+    background: #444444;
+    border-radius: 5px;
+}
+  
+::-webkit-scrollbar-thumb:hover {
+    background: #333333;
+}
+
+::-webkit-scrollbar-thumb:active {
+    background: #222222;
+}
+
 .hidden {
     display: none;
 }
@@ -31,7 +54,13 @@ html, body {
                 transform: translate3d(-50%, -50%, 0) rotate(360deg);
     }
 }
-#spinner {
+#spinner-container {
+    position: fixed;
+    top: 130px;
+    right: 20px;
+    height: 50px;
+    width: 50px;
+    & .spinner {
         -webkit-animation: .75s linear infinite spinner;
             animation: .75s linear infinite spinner;
         -webkit-animation-play-state: inherit;
@@ -39,15 +68,28 @@ html, body {
         border: solid 5px #ffffff;
         border-bottom-color: transparent;
         border-radius: 50%;
-    height: 50px;
+        height: 100%;
-    width: 50px;
+        width: 100%;
-    position: fixed;
-    top: 130px;
-    right: 20px;
         -webkit-transform: translate3d(-50%, -50%, 0);
                 transform: translate3d(-50%, -50%, 0);
         will-change: transform;
     }
+}
+
+#btn_report {
+    position: fixed;
+    bottom: 60px;
+    right: 30px;
+    & svg {
+        transition: all 250ms;
+    }
+    &:hover {
+        cursor: pointer;
+        & svg {
+            stroke: #2daa57;
+        }
+    }
+}
 
 .navigation {
     position: fixed;
@@ -106,35 +148,46 @@ html, body {
         }
     }
     & #content {
+        box-sizing: border-box;
         padding: 20px;
         width: calc(100vw - 50px);
         & #code {
-            word-break: break-all;
+            white-space: pre;
-            white-space: pre-wrap;
+            line-height: 20px;
+            overflow-x: auto;
         }
         & #input {
             height: 100%;
             width: 100%;
+            padding: 0;
             background-color: transparent;
             border: none;
             outline: none;
             color: inherit;
             resize: none;
-            font-size: 16px;
+            font: inherit;
+            line-height: 20px;
         }
     }
     & #notifications {
         position: fixed;
-        bottom: 0;
+        bottom: 30px;
+        right: 0;
+        padding: 20px;
         & div {
-            width: 100vw;
+            border-radius: 10px;
-            padding: 10px 20px;
+            width: 500px;
+            margin-top: 20px;
+            padding: 20px 30px;
             &.error {
-                background-color: #ff3d3d;
+                background-color: #ff4d4d;
             }
             &.success {
                 background-color: #389b38;
             }
+            &:first-child {
+                margin-top: 0;
+            }
         }
     }
 }
@@ -191,6 +244,15 @@ html, body {
         }
     }
 
+    .container #notifications {
+        padding: 0;
+        & div {
+            border-radius: 0;
+            width: 100vw;
+            box-sizing: border-box;
+        }
+    }
+
 
     #footer {
         & #flex {

web/assets/js/api.js

@@ -1,38 +0,0 @@
-// apiBase defines the base URL of the API
-const apiBase = location.protocol + "//" + location.host + "/api/v1";
-
-// getAPIInformation returns the API information
-export async function getAPIInformation() {
-    return fetch(apiBase + "/info");
-}
-
-// getPaste retrieves a paste
-export async function getPaste(id) {
-    return fetch(apiBase + "/pastes/" + id);
-}
-
-// createPaste creates a new paste
-export async function createPaste(content) {
-    return await fetch(apiBase + "/pastes", {
-        method: 'POST',
-        headers: {
-            'Content-Type': 'application/json'
-        },
-        body: JSON.stringify({
-            content
-        })
-    });
-}
-
-// deletePaste deletes a paste
-export async function deletePaste(id, deletionToken) {
-    return await fetch(apiBase + "/pastes/" + id, {
-        method: 'DELETE',
-        headers: {
-            'Content-Type': 'application/json'
-        },
-        body: JSON.stringify({
-            deletionToken
-        })
-    });
-}

web/assets/js/app.js

@@ -0,0 +1,5 @@
+import * as Spinner from "./modules/spinner.js";
+import * as State from "./modules/state.js";
+
+// Initialize the application state
+Spinner.surround(State.initialize);

web/assets/js/autoload.js

@@ -1,113 +0,0 @@
-// Import the used modules
-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();
-buttons.setupKeybinds();
-
-// Define element handles
-const versionElement = document.getElementById("version");
-const lineNOsElement = document.getElementById("linenos");
-const codeElement = document.getElementById("code");
-const inputElement = document.getElementById("input");
-
-// Load the API information
-async function loadAPIInformation() {
-    const response = await api.getAPIInformation();
-    if (!response.ok) {
-        const data = await response.text();
-        notifications.error("Failed fetching the API information: <b>" + data + "</b>");
-        return;
-    }
-    const data = await response.json();
-    versionElement.innerText = data.version;
-}
-loadAPIInformation();
-
-// Try to load a paste if one exists
-export let PASTE_ID;
-let CODE;
-async function loadPaste() {
-    if (location.pathname !== "/") {
-        // Define the paste ID and language
-        const split = location.pathname.replace("/", "").split(".");
-        const pasteID = split[0];
-        const language = split[1];
-
-        // Retrieve the paste from the API and redirect the user to the main page if it could not be found
-        const response = await api.getPaste(pasteID);
-        if (!response.ok) {
-            location.replace(location.protocol + "//" + location.host);
-            return;
-        }
-        CODE = (await response.json()).content;
-
-        // Adjust the button states
-        document.getElementById("btn_save").setAttribute("disabled", true);
-        document.getElementById("btn_delete").removeAttribute("disabled");
-        document.getElementById("btn_copy").removeAttribute("disabled");
-
-        // Set the paste content to the DOM
-        codeElement.innerHTML = language
-            ? hljs.highlight(language, CODE).value
-            : hljs.highlightAuto(CODE).value;
-
-        // Display the line numbers
-        renderLineNumbers();
-        window.addEventListener("resize", renderLineNumbers);
-
-        // Set the PASTE_ID variable
-        PASTE_ID = pasteID;
-    } else {
-        inputElement.classList.remove("hidden");
-        inputElement.focus();
-        window.addEventListener("keydown", function (event) {
-            if (event.keyCode != 9) return;
-            event.preventDefault();
-
-            insertTextAtCursor(inputElement, "    ");
-        });
-    }
-}
-spinner.surround(loadPaste);
-
-function renderLineNumbers() {
-    lineNOsElement.innerHTML = CODE.split(/\n/).map((line, index) => {
-        let lineWidth = getTextWidth(line, "16px Source Code Pro");
-        let linesSpace = Math.ceil(lineWidth / codeElement.offsetWidth);
-
-        let result = `<span>${index+1}</span>`;
-        if (linesSpace > 1) {
-            result += "<span></span>".repeat(linesSpace - 1);
-        }
-        return result;
-    }).join("");
-}
-
-// 1:1 skid from https://stackoverflow.com/questions/7404366/how-do-i-insert-some-text-where-the-cursor-is
-function insertTextAtCursor(element, text) {
-    let value = element.value, endIndex, range, doc = element.ownerDocument;
-    if (typeof element.selectionStart == "number"
-        && typeof element.selectionEnd == "number") {
-        endIndex = element.selectionEnd;
-        element.value = value.slice(0, endIndex) + text + value.slice(endIndex);
-        element.selectionStart = element.selectionEnd = endIndex + text.length;
-    } else if (doc.selection != "undefined" && doc.selection.createRange) {
-        element.focus();
-        range = doc.selection.createRange();
-        range.collapse(false);
-        range.text = text;
-        range.select();
-    }
-}
-
-// Also a kind of skid
-function getTextWidth(text, font) {
-    let canvas = getTextWidth.canvas || (getTextWidth.canvas = document.createElement("canvas"));
-    let context = canvas.getContext("2d");
-    context.font = font;
-    return context.measureText(text).width;
-}

web/assets/js/buttons.js

@@ -1,120 +0,0 @@
-// Import the used modules
-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() {
-    window.addEventListener("keydown", function (event) {
-        // Return if the CTRL key was not pressed
-        if (!event.ctrlKey) return;
-
-        // Define the DOM element of the pressed button
-        let element = null;
-        switch (event.keyCode) {
-            case 81: {
-                element = document.getElementById("btn_new");
-                break;
-            }
-            case 83: {
-                element = document.getElementById("btn_save");
-                break;
-            }
-            case 88: {
-                element = document.getElementById("btn_delete");
-                break;
-            }
-            case 66: {
-                element = document.getElementById("btn_copy");
-                break;
-            }
-        }
-
-        // Call the onClick function of the button
-        if (element) {
-            if (element.hasAttribute("disabled")) return;
-            event.preventDefault();
-            element.click();
-        }
-    });
-}
-
-// setupButtons configures the click listeners of the buttons
-export function setupButtons() {
-    // Define the behavior of the 'new' button
-    document.getElementById("btn_new").addEventListener("click", function () {
-        location.replace(location.protocol + "//" + location.host);
-    });
-
-    // Define the behavior of the 'save' button
-    document.getElementById("btn_save").addEventListener("click", function () {
-        spinner.surround(async function () {
-            // Return if the text area is empty
-            const input = document.getElementById("input");
-            if (!input.value) return;
-
-            // Create the paste
-            const response = await api.createPaste(input.value);
-            if (!response.ok) {
-                notifications.error("Failed creating the paste: <b>" + await response.text() + "</b>");
-                return;
-            }
-            const data = await response.json();
-
-            // Give the user the chance to copy the deletion token
-            if (data.deletionToken) {
-                prompt("The deletion token for your paste is:", data.deletionToken);
-            }
-
-            // Redirect the user to the paste page
-            let address = location.protocol + "//" + location.host + "/" + data.id;
-            if (data.suggestedSyntaxType) address += "." + data.suggestedSyntaxType;
-            location.replace(address);
-        });
-    });
-
-    // Define the behavior of the 'delete' button
-    document.getElementById("btn_delete").addEventListener("click", function () {
-        spinner.surround(async function () {
-            // Ask the user for the deletion token
-            const deletionToken = prompt("Deletion Token:");
-            if (!deletionToken) return;
-
-            // Delete the paste
-            const response = await api.deletePaste(autoload.PASTE_ID, deletionToken);
-            const data = await response.text();
-            if (!response.ok) {
-                notifications.error("Failed deleting the paste: <b>" + data + "</b>");
-                return;
-            }
-
-            // Redirect the user to the main page
-            location.replace(location.protocol + "//" + location.host);
-        });
-    });
-
-    // Define the behavior of the 'copy' button
-    document.getElementById("btn_copy").addEventListener("click", function () {
-        spinner.surround(async function () {
-            // Ask for the clipboard permissions
-            askClipboardPermissions();
-
-            // Copy the code
-            await navigator.clipboard.writeText(document.getElementById("code").innerText);
-            notifications.success("Copied the code!");
-        });
-    });
-}
-
-// askClipboardPermissions asks the user for the clipboard permissions
-async function askClipboardPermissions() {
-    try {
-        const state = await navigator.permissions.query({
-            name: "clipboard-write"
-        });
-        return state === "granted";
-    } catch (error) {
-        return false;
-    }
-}

web/assets/js/modules/animation.js

@@ -0,0 +1,12 @@
+// Properly animates an element
+export function animate(element, animation, duration, after) {
+    element.style.setProperty("--animate-duration", duration);
+    element.classList.add("animate__animated", animation);
+    element.addEventListener("animationend", () => {
+        element.style.removeProperty("--animate-duration");
+        element.classList.remove("animate__animated", animation);
+        if (after) {
+            after();
+        }
+    }, {once: true});
+}

web/assets/js/modules/api.js

@@ -0,0 +1,57 @@
+const API_BASE_URL = location.protocol + "//" + location.host + "/api/v2";
+
+export async function getAPIInformation() {
+    return fetch(API_BASE_URL + "/info");
+}
+
+export async function getPaste(pasteID) {
+    return fetch(API_BASE_URL + "/pastes/" + pasteID);
+}
+
+export async function createPaste(content, metadata) {
+    return fetch(API_BASE_URL + "/pastes", {
+        method: "POST",
+        headers: {
+            "Content-Type": "application/json"
+        },
+        body: JSON.stringify({
+            content,
+            metadata
+        })
+    });
+}
+
+export async function editPaste(pasteID, modificationToken, content, metadata) {
+    return fetch(API_BASE_URL + "/pastes/" + pasteID, {
+        method: "PATCH",
+        headers: {
+            "Content-Type": "application/json",
+            "Authorization": "Bearer " + modificationToken,
+        },
+        body: JSON.stringify({
+            content,
+            metadata
+        })
+    });
+}
+
+export async function deletePaste(pasteID, modificationToken) {
+    return fetch(API_BASE_URL + "/pastes/" + pasteID, {
+        method: "DELETE",
+        headers: {
+            "Authorization": "Bearer " + modificationToken,
+        }
+    });
+}
+
+export async function reportPaste(pasteID, reason) {
+    return fetch(API_BASE_URL + "/pastes/" + pasteID + "/report", {
+        method: "POST",
+        headers: {
+            "Content-Type": "application/json",
+        },
+        body: JSON.stringify({
+            reason
+        })
+    });
+}

web/assets/js/modules/notifications.js

@@ -0,0 +1,25 @@
+import * as Animation from "./animation.js";
+
+const ELEMENT = document.getElementById("notifications");
+
+// Shows a success notification
+export function success(message) {
+    create("success", message, 3000);
+}
+
+// Shows an error notification
+export function error(message) {
+    create("error", message, 3000);
+}
+
+// Creates a new custom notification
+function create(type, message, duration) {
+    const node = document.createElement("div");
+    node.classList.add(type);
+    Animation.animate(node, "animate__fadeInUp", "0.2s");
+    node.innerHTML = message;
+
+    ELEMENT.childNodes.forEach(child => Animation.animate(child, "animate__slideInUp", "0.2s"));
+    ELEMENT.appendChild(node);
+    setTimeout(() => Animation.animate(node, "animate__fadeOutUp", "0.2s", () => ELEMENT.removeChild(node)), duration);
+} 

web/assets/js/modules/spinner.js

@@ -0,0 +1,21 @@
+import * as Animation from "./animation.js";
+
+const ELEMENT = document.getElementById("spinner-container");
+
+// SHows the spinner
+export function show() {
+    ELEMENT.classList.remove("hidden");
+    Animation.animate(ELEMENT, "animate__zoomIn", "0.2s");
+}
+
+// Hides the spinner
+export function hide() {
+    Animation.animate(ELEMENT, "animate__zoomOut", "0.2s", () => ELEMENT.classList.add("hidden"));
+}
+
+// Surrounds an async action with a spinner
+export async function surround(innerFunction) {
+    show();
+    await innerFunction();
+    hide();
+}

web/assets/js/modules/state.js

@@ -0,0 +1,353 @@
+import * as API from "./api.js";
+import * as Notifications from "./notifications.js";
+import * as Spinner from "./spinner.js";
+import * as Animation from "./animation.js";
+
+const CODE_ELEMENT = document.getElementById("code");
+const LINE_NUMBERS_ELEMENT = document.getElementById("linenos");
+const INPUT_ELEMENT = document.getElementById("input");
+
+const BUTTONS_DEFAULT_ELEMENT = document.getElementById("buttons_default");
+const BUTTON_NEW_ELEMENT = document.getElementById("btn_new");
+const BUTTON_SAVE_ELEMENT = document.getElementById("btn_save");
+const BUTTON_EDIT_ELEMENT = document.getElementById("btn_edit");
+const BUTTON_DELETE_ELEMENT = document.getElementById("btn_delete");
+const BUTTON_COPY_ELEMENT = document.getElementById("btn_copy");
+
+const BUTTON_REPORT_ELEMENT = document.getElementById("btn_report");
+
+const BUTTONS_EDIT_ELEMENT = document.getElementById("buttons_edit");
+const BUTTON_EDIT_CANCEL_ELEMENT = document.getElementById("btn_edit_cancel");
+const BUTTON_EDIT_APPLY_ELEMENT = document.getElementById("btn_edit_apply");
+
+let PASTE_ID;
+let LANGUAGE;
+let CODE;
+
+let EDIT_MODE = false;
+
+let API_INFORMATION = {
+    version: "error",
+    modificationTokens: false,
+    reports: false
+};
+
+// Initializes the state system
+export async function initialize() {
+    loadAPIInformation();
+
+    setupButtonFunctionality();
+    setupKeybinds();
+
+    if (location.pathname !== "/") {
+        // Extract the paste data (ID and language)
+        const split = location.pathname.replace("/", "").split(".");
+        const pasteID = split[0];
+        const language = split[1];
+
+        // Try to retrieve the paste data from the API
+        const response = await API.getPaste(pasteID);
+        if (!response.ok) {
+            Notifications.error("Could not load paste: <b>" + await response.text() + "</b>");
+            setTimeout(() => location.replace(location.protocol + "//" + location.host), 3000);
+            return;
+        }
+
+        // Set the persistent paste data
+        PASTE_ID = pasteID;
+        LANGUAGE = language;
+        CODE = (await response.json()).content;
+
+        // Fill the code block with the just received data
+        updateCode();
+    } else {
+        // Give the user the opportunity to paste his code
+        INPUT_ELEMENT.classList.remove("hidden");
+        INPUT_ELEMENT.focus();
+    }
+
+    // Update the state of the buttons to match the current state
+    updateButtonState();
+}
+
+// Loads the API information
+async function loadAPIInformation() {
+    // try to retrieve the API information
+    const response = await API.getAPIInformation();
+    if (response.ok) {
+        API_INFORMATION = await response.json();
+    } else {
+        Notifications.error("Failed loading API information: <b>" + await response.text() + "</b>");
+    }
+
+    // Display the API version
+    document.getElementById("version").innerText = API_INFORMATION.version;
+}
+
+// Sets the current persistent code to the code block, highlights it and updates the line numbers
+function updateCode() {
+    CODE_ELEMENT.innerHTML = LANGUAGE
+        ? hljs.highlight(LANGUAGE, CODE).value
+        : hljs.highlightAuto(CODE).value;
+
+    LINE_NUMBERS_ELEMENT.innerHTML = CODE.split(/\n/).map((_, index) => `<span>${index + 1}</span>`).join("");
+}
+
+// Updates the button state according to the current state
+function updateButtonState() {
+    if (PASTE_ID) {
+        BUTTON_SAVE_ELEMENT.setAttribute("disabled", true);
+        BUTTON_EDIT_ELEMENT.removeAttribute("disabled");
+        BUTTON_DELETE_ELEMENT.removeAttribute("disabled");
+        BUTTON_COPY_ELEMENT.removeAttribute("disabled");
+
+        if (API_INFORMATION.reports) {
+            BUTTON_REPORT_ELEMENT.classList.remove("hidden");
+        }
+    } else {
+        BUTTON_SAVE_ELEMENT.removeAttribute("disabled");
+        BUTTON_EDIT_ELEMENT.setAttribute("disabled", true);
+        BUTTON_DELETE_ELEMENT.setAttribute("disabled", true);
+        BUTTON_COPY_ELEMENT.setAttribute("disabled", true);
+
+        if (API_INFORMATION.reports) {
+            BUTTON_REPORT_ELEMENT.classList.add("hidden");
+        }
+    }
+}
+
+// Toggles the edit mode
+function toggleEditMode() {
+    if (EDIT_MODE) {
+        EDIT_MODE = false;
+        INPUT_ELEMENT.classList.add("hidden");
+        CODE_ELEMENT.classList.remove("hidden");
+        Animation.animate(BUTTONS_EDIT_ELEMENT, "animate__fadeOutDown", "0.3s", () => {
+            BUTTONS_EDIT_ELEMENT.classList.add("hidden");
+            BUTTONS_DEFAULT_ELEMENT.classList.remove("hidden");
+            Animation.animate(BUTTONS_DEFAULT_ELEMENT, "animate__fadeInDown", "0.3s");
+        });
+    } else {
+        EDIT_MODE = true;
+        CODE_ELEMENT.classList.add("hidden");
+        INPUT_ELEMENT.classList.remove("hidden");
+        INPUT_ELEMENT.value = CODE;
+        INPUT_ELEMENT.focus();
+        Animation.animate(BUTTONS_DEFAULT_ELEMENT, "animate__fadeOutUp", "0.3s", () => {
+            BUTTONS_DEFAULT_ELEMENT.classList.add("hidden");
+            BUTTONS_EDIT_ELEMENT.classList.remove("hidden");
+            Animation.animate(BUTTONS_EDIT_ELEMENT, "animate__fadeInUp", "0.3s");
+        });
+    }
+}
+
+// Sets up the keybinds for the buttons
+function setupKeybinds() {
+    window.addEventListener("keydown", (event) => {
+        // All keybinds in the default button set include the CTRL key
+        if ((EDIT_MODE && !event.ctrlKey && event.code !== "Escape") || (!EDIT_MODE && !event.ctrlKey)) {
+            return;
+        }
+
+        // Find the DOM element of the button to trigger
+        let element;
+        if (EDIT_MODE) {
+            switch (event.code) {
+                case "Escape": {
+                    element = BUTTON_EDIT_CANCEL_ELEMENT;
+                    break
+                }
+                case "KeyS": {
+                    element = BUTTON_EDIT_APPLY_ELEMENT;
+                    break;
+                }
+            }
+        } else {
+            switch (event.code) {
+                case "KeyQ": {
+                    element = BUTTON_NEW_ELEMENT;
+                    break;
+                }
+                case "KeyS": {
+                    element = BUTTON_SAVE_ELEMENT;
+                    break;
+                }
+                case "KeyO": {
+                    element = BUTTON_EDIT_ELEMENT;
+                    break;
+                }
+                case "KeyX": {
+                    element = BUTTON_DELETE_ELEMENT;
+                    break;
+                }
+                case "KeyB": {
+                    element = BUTTON_COPY_ELEMENT;
+                    break;
+                }
+            }
+        }
+
+        // Trigger the found button
+        if (element) {
+            event.preventDefault();
+            if (element.hasAttribute("disabled")) {
+                return;
+            }
+            element.click();
+        }
+    });
+
+    // Additionally fix the behaviour of the Tab key
+    window.addEventListener("keydown", (event) => {
+        if (event.code != "Tab") {
+            return;
+        }
+        event.preventDefault();
+
+        insertTextAtCursor(inputElement, "    ");
+    });
+}
+
+// Sets up the different button functionalities
+function setupButtonFunctionality() {
+    BUTTON_NEW_ELEMENT.addEventListener("click", () => location.replace(location.protocol + "//" + location.host));
+
+    BUTTON_SAVE_ELEMENT.addEventListener("click", () => {
+        Spinner.surround(async () => {
+            // Only proceed if the input is not empty
+            if (!INPUT_ELEMENT.value) {
+                return;
+            }
+
+            // Try to create the paste
+            const response = await API.createPaste(INPUT_ELEMENT.value);
+            if (!response.ok) {
+                Notifications.error("Error while creating paste: <b>" + await response.text() + "</b>");
+                return;
+            }
+            const data = await response.json();
+
+            // Display the modification token if provided
+            if (data.modificationToken) {
+                prompt("The modification token for your paste is:", data.modificationToken);
+            }
+
+            // Redirect the user to his newly created paste
+            location.replace(location.protocol + "//" + location.host + "/" + data.id);
+        });
+    });
+    
+    BUTTON_EDIT_ELEMENT.addEventListener("click", toggleEditMode);
+
+    BUTTON_DELETE_ELEMENT.addEventListener("click", () => {
+        Spinner.surround(async () => {
+            // Ask for the modification token
+            const modificationToken = prompt("Modification token:");
+            if (!modificationToken) {
+                return;
+            }
+
+            // Try to delete the paste
+            const response = await API.deletePaste(PASTE_ID, modificationToken);
+            if (!response.ok) {
+                Notifications.error("Error while deleting paste: <b>" + await response.text() + "</b>");
+                return;
+            }
+
+            // Redirect the user to the start page
+            location.replace(location.protocol + "//" + location.host);
+        });
+    });
+
+    BUTTON_COPY_ELEMENT.addEventListener("click", async () => {
+        // Ask for clipboard permissions
+        if (!(await askForClipboardPermission())) {
+            Notifications.error("Clipboard permission denied.");
+            return;
+        }
+
+        // Copy the current code
+        await navigator.clipboard.writeText(CODE);
+        Notifications.success("Successfully copied the code.");
+    });
+
+    BUTTON_EDIT_CANCEL_ELEMENT.addEventListener("click", toggleEditMode);
+
+    BUTTON_EDIT_APPLY_ELEMENT.addEventListener("click", async () => {
+        // Only proceed if the input is not empty
+        if (!INPUT_ELEMENT.value) {
+            return;
+        }
+
+        // Ask for the modification token
+        const modificationToken = prompt("Modification token:");
+        if (!modificationToken) {
+            return;
+        }
+
+        // Try to edit the paste
+        const response = await API.editPaste(PASTE_ID, modificationToken, INPUT_ELEMENT.value);
+        if (!response.ok) {
+            Notifications.error("Error while editing paste: <b>" + await response.text() + "</b>");
+            return;
+        }
+
+        // Update the code and leave the edit mode
+        CODE = INPUT_ELEMENT.value;
+        updateCode();
+        toggleEditMode();
+        Notifications.success("Successfully edited paste.");
+    });
+
+    BUTTON_REPORT_ELEMENT.addEventListener("click", async () => {
+        // Ask the user for a reason
+        const reason = prompt("Reason:");
+        if (!reason) {
+            return;
+        }
+
+        // Try to report the paste
+        const response = await API.reportPaste(PASTE_ID, reason);
+        if (!response.ok) {
+            Notifications.error("Error while reporting paste: <b>" + await response.text() + "</b>");
+            return;
+        }
+
+        // Show the response message
+        const data = await response.json();
+        if (!data.success) {
+            Notifications.error("Error while reporting paste: <b>" + data.message + "</b>");
+            return;
+        }
+        Notifications.success(data.message);
+    });
+}
+
+// Asks for clipboard write permission
+async function askForClipboardPermission() {
+    try {
+        const state = await navigator.permissions.query({
+            name: "clipboard-write"
+        });
+        return state.state === "granted" || state.state === "prompt";
+    } catch (error) {
+        return false;
+    }
+}
+
+// 1:1 skid from https://stackoverflow.com/questions/7404366/how-do-i-insert-some-text-where-the-cursor-is
+function insertTextAtCursor(element, text) {
+    let value = element.value, endIndex, range, doc = element.ownerDocument;
+    if (typeof element.selectionStart == "number"
+        && typeof element.selectionEnd == "number") {
+        endIndex = element.selectionEnd;
+        element.value = value.slice(0, endIndex) + text + value.slice(endIndex);
+        element.selectionStart = element.selectionEnd = endIndex + text.length;
+    } else if (doc.selection != "undefined" && doc.selection.createRange) {
+        element.focus();
+        range = doc.selection.createRange();
+        range.collapse(false);
+        range.text = text;
+        range.select();
+    }
+}

web/assets/js/notifications.js

@@ -1,22 +0,0 @@
-// 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(() => element.removeChild(node), duration);
-}

web/assets/js/spinner.js

@@ -1,19 +0,0 @@
-// element holds the spinners DOM element
-const element = document.getElementById("spinner");
-
-// show shows the spinner
-export function show() {
-    element.classList.remove("hidden");
-}
-
-// hide hides the spinner
-export function hide() {
-    element.classList.add("hidden");
-}
-
-// surround surrounds an action with a spinner
-export async function surround(action) {
-    show();
-    await action();
-    hide();
-}

web/index.html

@@ -7,12 +7,24 @@
     <title>pasty</title>
     <link rel="stylesheet" href="assets/css/style.css">
     <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/10.1.2/styles/solarized-dark.min.css">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/animate.css/4.1.1/animate.min.css">
 </head>
 
 <body>
-    <div id="spinner" class="hidden"></div>
+    <div id="spinner-container" class="hidden"><div class="spinner"></div></div>
+    <div id="btn_report" class="hidden" title="Report paste">
+        <svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-flag" width="40"
+            height="40" viewBox="0 0 24 24" stroke-width="1.5" stroke="#bebebe" fill="none"
+            stroke-linecap="round" stroke-linejoin="round">
+            <path stroke="none" d="M0 0h24v24H0z" fill="none"/>
+            <line x1="5" y1="5" x2="5" y2="21" />
+            <line x1="19" y1="5" x2="19" y2="14" />
+            <path d="M5 5a5 5 0 0 1 7 0a5 5 0 0 0 7 0" />
+            <path d="M5 14a5 5 0 0 1 7 0a5 5 0 0 0 7 0" />
+        </svg>
+    </div>
     <div class="navigation">
-        <div class="buttons">
+        <div class="buttons" id="buttons_default">
             <button class="button" id="btn_new" title="Create new paste (Ctrl + Q)">
                 <svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-circle-plus" width="40"
                     height="40" viewBox="0 0 24 24" stroke-width="1.5" stroke="#bebebe" fill="none"
@@ -33,6 +45,16 @@
                     <polyline points="14 4 14 8 8 8 8 4" />
                 </svg>
             </button>
+            <button class="button" id="btn_edit" title="Edit paste (Ctrl + O)" disabled>
+                <svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-edit" width="40"
+                height="40" viewBox="0 0 24 24" stroke-width="1.5" stroke="#bebebe" fill="none"
+                stroke-linecap="round" stroke-linejoin="round">
+                    <path stroke="none" d="M0 0h24v24H0z" fill="none"/>
+                    <path d="M9 7h-3a2 2 0 0 0 -2 2v9a2 2 0 0 0 2 2h9a2 2 0 0 0 2 -2v-3" />
+                    <path d="M9 15h3l8.5 -8.5a1.5 1.5 0 0 0 -3 -3l-8.5 8.5v3" />
+                    <line x1="16" y1="5" x2="19" y2="8" />
+                </svg>
+            </button>
             <button class="button" id="btn_delete" title="Delete paste (Ctrl + X)" disabled>
                 <svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-trash" width="40"
                     height="40" viewBox="0 0 24 24" stroke-width="1.5" stroke="#bebebe" fill="none"
@@ -55,6 +77,24 @@
                 </svg>
             </button>
         </div>
+        <div class="buttons hidden" id="buttons_edit">
+            <button class="button" id="btn_edit_cancel" title="Cancel (Escape)">
+                <svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-arrow-back-up" width="40"
+                    height="40" viewBox="0 0 24 24" stroke-width="1.5" stroke="#bebebe" fill="none"
+                    stroke-linecap="round" stroke-linejoin="round">
+                    <path stroke="none" d="M0 0h24v24H0z" fill="none"/>
+                    <path d="M9 13l-4 -4l4 -4m-4 4h11a4 4 0 0 1 0 8h-1" />
+                </svg>
+            </button>
+            <button class="button" id="btn_edit_apply" title="Apply changes (Ctrl + S)">
+                <svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-check" width="40"
+                    height="40" viewBox="0 0 24 24" stroke-width="1.5" stroke="#bebebe" fill="none"
+                    stroke-linecap="round" stroke-linejoin="round">
+                    <path stroke="none" d="M0 0h24v24H0z" fill="none"/>
+                    <path d="M5 12l5 5l10 -10" />
+                </svg>
+            </button>
+        </div>
     </div>
     <div class="container">
         <div id="notifications"></div>
@@ -78,7 +118,7 @@
         </div>
     </div>
     <script src="//cdn.jsdelivr.net/gh/highlightjs/cdn-release@10.1.2/build/highlight.min.js"></script>
-    <script src="assets/js/autoload.js" type="module"></script>
+    <script src="assets/js/app.js" type="module"></script>
 </body>
 
 </html>