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| 1 | +<!doctype html> |
| 2 | +<html lang="ja"> |
| 3 | + <head> |
| 4 | + <meta charset="UTF-8" /> |
| 5 | + <title>TextInputGuard</title> |
| 6 | + <link rel="stylesheet" href="./css/demo.css" /> |
| 7 | + </head> |
| 8 | + <style> |
| 9 | + .error-bubble { |
| 10 | + display: none; |
| 11 | + margin-top: 6px; |
| 12 | + padding: 8px 12px; |
| 13 | + border: 1px solid var(--invalid-border); |
| 14 | + border-radius: 8px; |
| 15 | + background: var(--invalid-bg); |
| 16 | + color: var(--text); |
| 17 | + font-size: 14px; |
| 18 | + line-height: 1.4; |
| 19 | + box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08); |
| 20 | + position: relative; |
| 21 | + max-width: 420px; |
| 22 | + } |
| 23 | + |
| 24 | + .error-bubble.show { |
| 25 | + display: block; |
| 26 | + } |
| 27 | + |
| 28 | + /* 吹き出しの三角 */ |
| 29 | + .error-bubble::before { |
| 30 | + content: ""; |
| 31 | + position: absolute; |
| 32 | + top: -8px; |
| 33 | + left: 16px; |
| 34 | + border-width: 0 8px 8px 8px; |
| 35 | + border-style: solid; |
| 36 | + border-color: transparent transparent var(--invalid-border) transparent; |
| 37 | + } |
| 38 | + |
| 39 | + .error-bubble::after { |
| 40 | + content: ""; |
| 41 | + position: absolute; |
| 42 | + top: -7px; |
| 43 | + left: 16px; |
| 44 | + border-width: 0 8px 8px 8px; |
| 45 | + border-style: solid; |
| 46 | + border-color: transparent transparent var(--invalid-bg) transparent; |
| 47 | + } |
| 48 | + </style> |
| 49 | + <body> |
| 50 | + <label> |
| 51 | + <input id="name" type="text" /> |
| 52 | + <div id="name-errors" class="error-bubble" aria-live="polite"></div> |
| 53 | + </label> |
| 54 | + |
| 55 | + <script type="module"> |
| 56 | + import { attach, rules } from "./lib/text-input-guard.min.js"; |
| 57 | + |
| 58 | + const input = document.getElementById("name"); |
| 59 | + const errorBox = document.getElementById("name-errors"); |
| 60 | + |
| 61 | + function formatErrorMessage(error) { |
| 62 | + switch (error.code) { |
| 63 | + case "length.max_overflow": |
| 64 | + return `文字数が多すぎます（最大 ${error.detail?.limit} 文字、現在 ${error.detail?.actual} 文字）`; |
| 65 | + case "bytes.max_overflow": |
| 66 | + return `文字容量が大きすぎます（最大 ${error.detail?.limit} バイト、現在 ${error.detail?.actual} バイト）`; |
| 67 | + default: |
| 68 | + return error.code; |
| 69 | + } |
| 70 | + } |
| 71 | + |
| 72 | + function renderErrors(errors) { |
| 73 | + errorBox.innerHTML = ""; |
| 74 | + |
| 75 | + if (!errors || errors.length === 0) { |
| 76 | + errorBox.classList.remove("show"); |
| 77 | + return; |
| 78 | + } |
| 79 | + |
| 80 | + const ul = document.createElement("ul"); |
| 81 | + ul.style.margin = "0"; |
| 82 | + ul.style.paddingLeft = "1.2em"; |
| 83 | + |
| 84 | + for (const error of errors) { |
| 85 | + const li = document.createElement("li"); |
| 86 | + li.textContent = formatErrorMessage(error); |
| 87 | + ul.appendChild(li); |
| 88 | + } |
| 89 | + |
| 90 | + errorBox.appendChild(ul); |
| 91 | + errorBox.classList.add("show"); |
| 92 | + } |
| 93 | + |
| 94 | + attach(input, { |
| 95 | + rules: [ |
| 96 | + rules.length({ |
| 97 | + max: 5, |
| 98 | + mode: "error", |
| 99 | + unit: "grapheme" |
| 100 | + }), |
| 101 | + rules.bytes({ |
| 102 | + max: 5, |
| 103 | + mode: "error", |
| 104 | + unit: "utf-8" |
| 105 | + }) |
| 106 | + ], |
| 107 | + onValidate(result) { |
| 108 | + renderErrors(result.errors); |
| 109 | + } |
| 110 | + }); |
| 111 | + </script> |
| 112 | + </body> |
| 113 | +</html> |
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