Improve user interface

ba48b485 · Frank Sauerburger · 04559be8 · ba48b485 · ba48b485 · ba48b485
Verified Commit ba48b485 authored 5 years ago by Frank Sauerburger
--- a/assets/bootstrap.min.css
+++ b/assets/bootstrap.min.css
--- a/assets/bootstrap.min.css.map
+++ b/assets/bootstrap.min.css.map
--- a/assets/custom.css
+++ b/assets/custom.css
+#dropzone {
+    border: 1px dotted #aaa;
+    margin: 3em 10em;
+    padding: 2em;
+    text-align: center;
+    font-style: italic;
+    color: #999;
+}
+
+#dropzone:hover {
+    border-color: #000;
+}
+
+
+#dropzone.drop-active {
+    background-color: #eee;
+    color: #000;
+    border-color: #000;
+}
+
+#dropzone.drop-uploading {
+    background-color: #efe;
+}
--- a/assets/jquery-3.4.1.min.js
+++ b/assets/jquery-3.4.1.min.js
--- a/assets/upload.js
+++ b/assets/upload.js
+$(function() {
+    $("#dropzone").on("dragenter", highlight);
+    $("#dropzone").on("dragover", highlight);
+    $("#dropzone").on("dragleave", unhighlight);
+    $("#dropzone").on("drop", handleDrop);
+
+/*
+    ;['dragenter', 'dragover'].forEach(eventName => {
+          dropArea.addEventListener(eventName, highlight, false)
+    })
+
+    ;['dragleave', 'drop'].forEach(eventName => {
+          dropArea.addEventListener(eventName, unhighlight, false)
+    })
+
+    function highlight(e) {
+          dropArea.classList.add('highlight')
+    }
+
+    function unhighlight(e) {
+          dropArea.classList.remove('highlight')
+    }
+    */
+});
+
+function highlight(e) {
+    e.preventDefault();
+    e.stopPropagation();
+    $("#dropzone").addClass("drop-active");
+}
+
+function unhighlight(e) {
+    e.preventDefault();
+    e.stopPropagation();
+    $("#dropzone").removeClass("drop-active");
+}
+
+function handleDrop(e) {
+    e.preventDefault();
+    e.stopPropagation();
+    ([...e.originalEvent.dataTransfer.files]).forEach(uploadFile);
+}
+
+function uploadFile(file) {
+    $("#dropzone").addClass("drop-uploading");
+    let formData = new FormData();
+
+    formData.append('document', file)
+    fetch("/", {
+        method: 'POST',
+        body: formData
+    })
+    .then(function() { info("File " + file.name + " sent to printer."); })
+    .catch(function() { error("An error occured while sending " + file.name + " to printer.") })
+
+}
+
+function info(text) {
+  $("#dropzone").removeClass("drop-uploading");
+  $("#dropzone").removeClass("drop-active");
+  $("#messages").append('<div class="alert alert-success">' + text + "</div>");
+  setTimeout(clear, 3000);
+}
+
+function error(text) {
+  $("#dropzone").removeClass("drop-uploading");
+  $("#dropzone").removeClass("drop-active");
+  $("#messages").append('<div class="alert alert-danger">' + text + "</div>");
+  setTimeout(clear, 3000);
+}
+
+function clear() {
+  $("#messages").empty();
+}
--- a/templates/index.html
+++ b/templates/index.html
 <!doctype html>
-<html>
-Hello
-<ul>
-{% for printer in printers %}
-    <li>{{ printer }}</li>
-{% endfor %}
-</ul>
-<form action="/" method="post" enctype="multipart/form-data">
-    <input type="file" name="document" />
-    <input type="submit" value="print" />
-</form>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta name="author" content="Frank Sauerburger">
+  <title>Web2Print</title>
+  <link rel="stylesheet" href="/assets/bootstrap.min.css" />
+  <link rel="stylesheet" href="/assets/custom.css" />
+  <script src="/assets/jquery-3.4.1.min.js"></script>
+  <script src="/assets/upload.js"></script>
+</head>
+
+<body>
+  <header class="navbar navbar-expand navbar-dark bg-dark">
+    <nav class="container">
+        <div class="navbar-brand">Web2Print</div>
+    <nav>
+  </header>
+
+    <main class="container pt-3">
+    {% if not printers %}
+        <div class="alert alert-danger">
+            Cannot find any printer!
+        </div>
+    {% else %}
+        <div class="form-group row">
+            <label class="col-form-label col-md-2" htmlFor="printer">Printer</label>
+            <select id="printer" class="form-control col-md-10">
+            {% for printer in printers %}
+                <option value="{{ printer }}">{{ printer }}</option>
+            {% endfor %}
+            </select>
+        </div>
+        <div id="dropzone">
+          Drop PDF files here.
+          <input type="file" id="document" class="d-none" />
+      </div>
+    {% endif %}
+    <div id="messages"></div>
+    </main>
+</body>
 </html>