Первый коммит.

2023-11-09 23:11:16 +05:00 · 2023-11-09 23:11:16 +05:00 · f8b8e8c02b
commit f8b8e8c02b
6 changed files with 961 additions and 0 deletions
--- a/index.html
+++ b/index.html
@ -0,0 +1,123 @@
+<!--
+ Copyright (c) 2023 Nikita Osokin.
+
+ Redistribution and use in source and binary forms, with or without modification, are permitted
+ provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this list of
+    conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of
+    conditions and the following disclaimer in the documentation and/or other materials provided
+    with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+ IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+-->
+
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+    </head>
+    <body>
+        <h1>Добро пожаловать!</h1>
+        <p>Здравствуй, клиент!</p>
+
+        <p>Список классов:</p>
+
+        <table id="classes" border=1>
+            <tbody>
+            </tbody>
+        </table>
+
+        <script>
+            const classes = document.getElementById("classes");
+
+            function uint8ArrayToNum(arr, off) {
+                let result = 0;
+                for(var i = 0; i < 8; i++) {
+                    result <<= 8;
+                    result |= arr[off + i];
+                }
+                return result;
+            }
+
+            function displayGetError(e) {
+                let p = document.createElement("p");
+                p.appendChild(document.createTextNode("Не удалось получить список классов от сервера."));
+                classes.before(p);
+            }
+
+            function getClasses() {
+                fetch(
+                    "../getClassesList",
+                    {
+                        method: "GET"
+                    }
+                ).then(
+                    getData,
+                    displayGetError
+                );
+            }
+
+            function getData(response) {
+                if(response.status != 200) {
+                    displayGetError();
+                    return;
+                }
+
+                response.arrayBuffer().then(
+                    displayData,
+                    displayGetError
+                );
+            }
+
+            function displayData(dataBuffer) {
+                let data = new Uint8Array(dataBuffer);
+
+                let classesCount = uint8ArrayToNum(data, 0);
+                let textDecoder = new TextDecoder();
+                let currentOff = 8;
+                for(let i = 0; i < classesCount; i++) {
+                    let nRow = document.createElement("tr");
+
+                    let len = uint8ArrayToNum(data, currentOff);
+                    currentOff += 8;
+                    let className = textDecoder.decode(data.slice(currentOff, currentOff + len));
+                    let nCell1 = document.createElement("th");
+                    nCell1.appendChild(document.createTextNode(className));
+                    currentOff += len;
+                    nRow.appendChild(nCell1);
+
+
+                    let nCell2 = document.createElement("th");
+                    let nA1 = document.createElement("a");
+                    nA1.href = "../schedule?c=" + className;
+                    nA1.appendChild(document.createTextNode("Расписание"));
+                    nCell2.appendChild(nA1);
+                    nRow.appendChild(nCell2);
+
+                    let nCell3 = document.createElement("th");
+                    let nA2 = document.createElement("a");
+                    nA2.href = "../editpage?c=" + className;
+                    nA2.appendChild(document.createTextNode("Изменить"));
+                    nCell3.appendChild(nA2);
+                    nRow.appendChild(nCell3);
+
+                    classes.children[0].appendChild(nRow);
+                }
+            }
+
+            getClasses();
+
+        </script>
+    </body>
+</html>
+