sanbuphy
634 lines
15 KiB
Vue
634 lines
15 KiB
Vue
<!--
|
||
WebTechTriad.vue
|
||
三剑客轻交互：同一段小页面，切换 HTML/CSS/JS。
|
||
目标：让读者“看到页面上的某一块”就能立刻找到“代码里的哪一行”，再用三步解释发生了什么。
|
||
风格：先玩后讲，句子短。
|
||
-->
|
||
<template>
|
||
<div class="triad">
|
||
<div class="top">
|
||
<div>
|
||
<div class="title">先玩一下：同一段页面，切换层次</div>
|
||
<div class="subtitle">HTML 定骨架 → CSS 换外观 → JS 让它动起来</div>
|
||
</div>
|
||
<div class="modes">
|
||
<button
|
||
v-for="m in modes"
|
||
:key="m.id"
|
||
:class="['mode', { active: current === m.id }]"
|
||
@click="current = m.id"
|
||
>
|
||
{{ m.label }}
|
||
</button>
|
||
</div>
|
||
</div>
|
||
|
||
<!-- 🎨 交互式配置面板 -->
|
||
<div class="config-panel" v-if="current === 'css'">
|
||
<div class="config-header">
|
||
<div class="config-title">🎨 教学演示参数调整 (仅 CSS 模式生效)</div>
|
||
<button class="reset-btn" @click="resetColors">重置默认</button>
|
||
</div>
|
||
<div class="config-items">
|
||
<div class="config-item">
|
||
<label>Primary Color (主题色)</label>
|
||
<div class="input-group">
|
||
<input type="color" v-model="customColors.primary" />
|
||
<input
|
||
type="text"
|
||
v-model="customColors.primary"
|
||
class="hex-input"
|
||
/>
|
||
</div>
|
||
</div>
|
||
<div class="config-item">
|
||
<label>Text Color (文字色)</label>
|
||
<div class="input-group">
|
||
<input type="color" v-model="customColors.text" />
|
||
<input type="text" v-model="customColors.text" class="hex-input" />
|
||
</div>
|
||
</div>
|
||
<div class="config-item">
|
||
<label>Button Text (按钮文字)</label>
|
||
<div class="input-group">
|
||
<input type="color" v-model="customColors.btnText" />
|
||
<input
|
||
type="text"
|
||
v-model="customColors.btnText"
|
||
class="hex-input"
|
||
/>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<div class="preview" :class="current">
|
||
<div class="hint">
|
||
点一下标题/段落/按钮，我会在下面的代码里高亮对应行。
|
||
</div>
|
||
<h1
|
||
class="hero"
|
||
:class="{ selected: selectedPart === 'h1' }"
|
||
@click="selectedPart = 'h1'"
|
||
>
|
||
<span class="badge">①</span>
|
||
欢迎来到我的网站
|
||
</h1>
|
||
<p
|
||
class="desc"
|
||
:class="{ selected: selectedPart === 'p' }"
|
||
@click="selectedPart = 'p'"
|
||
>
|
||
<span class="badge">②</span>
|
||
这是一段描述文字，告诉用户这里能做什么。
|
||
</p>
|
||
<button
|
||
class="cta"
|
||
:class="{ selected: selectedPart === 'btn' }"
|
||
@click="handleBtnClick"
|
||
>
|
||
<span class="badge">③</span>
|
||
点我试试看 ({{ clicks }})
|
||
</button>
|
||
<div class="click-tip" v-if="current === 'js'">
|
||
现在再点一次按钮计数会变：这是 JS 在改页面。
|
||
</div>
|
||
</div>
|
||
|
||
<div class="code-block">
|
||
<div class="code-title">{{ codeTitle }}</div>
|
||
<div class="code-content">
|
||
<div
|
||
v-for="(line, i) in codeLines"
|
||
:key="i"
|
||
:class="['line', { hl: line.key === selectedPart }]"
|
||
>
|
||
{{ line.text }}
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<div class="explain">
|
||
<div class="card">
|
||
<div class="card-title">对照：页面 ↔ 代码</div>
|
||
<div class="map">
|
||
<button
|
||
v-for="row in mappingRows"
|
||
:key="row.key"
|
||
:class="['map-row', { active: selectedPart === row.key }]"
|
||
@click="selectedPart = row.key"
|
||
>
|
||
<span class="left">{{ row.left }}</span>
|
||
<span class="right">{{ row.right }}</span>
|
||
</button>
|
||
</div>
|
||
</div>
|
||
<div class="card">
|
||
<div class="card-title">发生了什么（简单版）</div>
|
||
<ol class="steps">
|
||
<li v-for="s in steps" :key="s">{{ s }}</li>
|
||
</ol>
|
||
</div>
|
||
</div>
|
||
|
||
<div class="one-line">
|
||
<span class="one-line-title">一句话总结：</span>
|
||
<span class="one-line-body">{{ oneLine }}</span>
|
||
</div>
|
||
</div>
|
||
</template>
|
||
|
||
<script setup>
|
||
import { computed, ref, reactive } from 'vue'
|
||
|
||
const props = defineProps({
|
||
primaryColor: {
|
||
type: String,
|
||
default: '#0ea5e9'
|
||
},
|
||
textColor: {
|
||
type: String,
|
||
default: '#111827'
|
||
},
|
||
btnTextColor: {
|
||
type: String,
|
||
default: '#fff'
|
||
}
|
||
})
|
||
|
||
// 🎨 用户自定义颜色状态
|
||
const customColors = reactive({
|
||
primary: props.primaryColor,
|
||
text: props.textColor,
|
||
btnText: props.btnTextColor
|
||
})
|
||
|
||
// 重置为默认值
|
||
const resetColors = () => {
|
||
customColors.primary = props.primaryColor
|
||
customColors.text = props.textColor
|
||
customColors.btnText = props.btnTextColor
|
||
}
|
||
|
||
// =============================================================================
|
||
// 🔧 演示参数配置 (Demo Configuration)
|
||
// =============================================================================
|
||
// 优先使用用户自定义的颜色，如果有变化的话
|
||
const DEMO_CONFIG = computed(() => ({
|
||
colors: {
|
||
primary: customColors.primary,
|
||
text: customColors.text,
|
||
btnText: customColors.btnText
|
||
}
|
||
}))
|
||
|
||
const modes = [
|
||
{ id: 'html', label: '看骨架 (HTML)' },
|
||
{ id: 'css', label: '看外观 (CSS)' },
|
||
{ id: 'js', label: '看交互 (JS)' }
|
||
]
|
||
|
||
const current = ref('html')
|
||
const clicks = ref(0)
|
||
const selectedPart = ref('h1') // 'h1' | 'p' | 'btn'
|
||
|
||
const codeTitle = computed(() => {
|
||
if (current.value === 'html') return 'HTML 片段：告诉浏览器这是什么'
|
||
if (current.value === 'css') return 'CSS 片段：决定长什么样'
|
||
return 'JS 片段：让它动起来'
|
||
})
|
||
|
||
const codeLines = computed(() => {
|
||
if (current.value === 'html') {
|
||
return [
|
||
{ key: 'h1', text: '<h1>欢迎来到我的网站</h1>' },
|
||
{ key: 'p', text: '<p>这是一段描述文字...</p>' },
|
||
{ key: 'btn', text: '<button>点我试试看</button>' }
|
||
]
|
||
}
|
||
if (current.value === 'css') {
|
||
return [
|
||
{
|
||
key: 'h1',
|
||
text: `.hero { color: ${DEMO_CONFIG.value.colors.primary}; font-size: 24px; }`
|
||
},
|
||
{ key: 'p', text: `.desc { color: ${DEMO_CONFIG.value.colors.text}; }` },
|
||
{
|
||
key: 'btn',
|
||
text: `.cta { background: ${DEMO_CONFIG.value.colors.primary}; color: ${DEMO_CONFIG.value.colors.btnText}; border-radius: 10px; }`
|
||
}
|
||
]
|
||
}
|
||
return [
|
||
{ key: 'btn', text: "const btn = document.querySelector('button')" },
|
||
{ key: 'btn', text: 'let count = 0' },
|
||
{ key: 'btn', text: "btn.addEventListener('click', () => {" },
|
||
{ key: 'btn', text: ' count++' },
|
||
{ key: 'btn', text: " btn.textContent = '点我试试看 (' + count + ')'" },
|
||
{ key: 'btn', text: '})' }
|
||
]
|
||
})
|
||
|
||
const mappingRows = computed(() => {
|
||
if (current.value === 'html') {
|
||
return [
|
||
{ key: 'h1', left: '① 标题', right: '<h1>...</h1>' },
|
||
{ key: 'p', left: '② 段落', right: '<p>...</p>' },
|
||
{ key: 'btn', left: '③ 按钮', right: '<button>...</button>' }
|
||
]
|
||
}
|
||
if (current.value === 'css') {
|
||
return [
|
||
{ key: 'h1', left: '① 标题', right: '.hero { ... }' },
|
||
{ key: 'p', left: '② 段落', right: '.desc { ... }' },
|
||
{ key: 'btn', left: '③ 按钮', right: '.cta { ... }' }
|
||
]
|
||
}
|
||
return [
|
||
{ key: 'h1', left: '① 标题', right: '（此例未涉及）' },
|
||
{ key: 'p', left: '② 段落', right: '（此例未涉及）' },
|
||
{ key: 'btn', left: '③ 按钮', right: "addEventListener('click', ...)" }
|
||
]
|
||
})
|
||
|
||
const steps = computed(() => {
|
||
if (current.value === 'html') {
|
||
return [
|
||
'浏览器读到 HTML：知道页面上有“标题/段落/按钮”。',
|
||
'把它们先按默认规则摆出来（所以看起来很朴素）。',
|
||
'下一步才轮到 CSS 和 JS。'
|
||
]
|
||
}
|
||
if (current.value === 'css') {
|
||
return [
|
||
'浏览器先把 HTML 结构摆好。',
|
||
'再读取 CSS：给标题/段落/按钮套上颜色、字号、间距。',
|
||
'重新绘制外观：你看到页面“变好看”。'
|
||
]
|
||
}
|
||
return [
|
||
'页面先按 HTML+CSS 显示出来。',
|
||
'JS 给按钮装上“点击开关”（事件监听）。',
|
||
'你点击按钮时：JS 改按钮文字/计数，页面立即更新。'
|
||
]
|
||
})
|
||
|
||
const oneLine = computed(() => {
|
||
if (current.value === 'html') return '先把“有哪些东西、是什么东西”说清楚。'
|
||
if (current.value === 'css')
|
||
return '在不改结构的前提下，把外观调到你想要的样子。'
|
||
return '把“点击/输入”等行为接上逻辑，让页面能互动。'
|
||
})
|
||
|
||
// Keep the demo behavior: only JS mode should increment on click.
|
||
// We implement it by watching mode and only allowing clicks to increment in JS mode.
|
||
const increment = () => {
|
||
if (current.value !== 'js') return
|
||
clicks.value++
|
||
}
|
||
|
||
const handleBtnClick = () => {
|
||
selectedPart.value = 'btn'
|
||
increment()
|
||
}
|
||
</script>
|
||
|
||
<style scoped>
|
||
.triad {
|
||
border: 1px solid var(--vp-c-divider);
|
||
border-radius: 12px;
|
||
background: var(--vp-c-bg-soft);
|
||
padding: 16px;
|
||
margin: 20px 0;
|
||
display: flex;
|
||
flex-direction: column;
|
||
gap: 12px;
|
||
}
|
||
|
||
/* New Config Panel Styles */
|
||
.config-panel {
|
||
background: var(--vp-c-bg-alt);
|
||
border: 1px solid var(--vp-c-divider);
|
||
border-radius: 8px;
|
||
padding: 16px;
|
||
margin-bottom: 20px;
|
||
}
|
||
|
||
.config-header {
|
||
display: flex;
|
||
justify-content: space-between;
|
||
align-items: center;
|
||
margin-bottom: 12px;
|
||
}
|
||
|
||
.config-title {
|
||
font-size: 14px;
|
||
font-weight: 600;
|
||
color: var(--vp-c-text-1);
|
||
}
|
||
|
||
.config-items {
|
||
display: flex;
|
||
flex-wrap: wrap;
|
||
gap: 24px;
|
||
}
|
||
|
||
.config-item {
|
||
display: flex;
|
||
flex-direction: column;
|
||
gap: 8px;
|
||
}
|
||
|
||
.config-item label {
|
||
font-size: 12px;
|
||
font-weight: 500;
|
||
color: var(--vp-c-text-2);
|
||
}
|
||
|
||
.input-group {
|
||
display: flex;
|
||
align-items: center;
|
||
gap: 8px;
|
||
background: var(--vp-c-bg);
|
||
padding: 4px;
|
||
border-radius: 6px;
|
||
border: 1px solid var(--vp-c-divider);
|
||
}
|
||
|
||
input[type='color'] {
|
||
width: 28px;
|
||
height: 28px;
|
||
border: none;
|
||
padding: 0;
|
||
background: none;
|
||
cursor: pointer;
|
||
border-radius: 4px;
|
||
}
|
||
|
||
.hex-input {
|
||
border: none;
|
||
background: transparent;
|
||
color: var(--vp-c-text-1);
|
||
font-size: 13px;
|
||
width: 65px;
|
||
font-family: var(--vp-font-family-mono);
|
||
outline: none;
|
||
}
|
||
|
||
.reset-btn {
|
||
font-size: 12px;
|
||
color: var(--vp-c-brand);
|
||
background: var(--vp-c-bg);
|
||
border: 1px solid var(--vp-c-brand);
|
||
border-radius: 4px;
|
||
cursor: pointer;
|
||
padding: 4px 12px;
|
||
transition: all 0.2s;
|
||
}
|
||
.reset-btn:hover {
|
||
background: var(--vp-c-brand);
|
||
color: white;
|
||
}
|
||
|
||
.top {
|
||
display: flex;
|
||
justify-content: space-between;
|
||
align-items: center;
|
||
gap: 12px;
|
||
flex-wrap: wrap;
|
||
}
|
||
.title {
|
||
font-weight: 800;
|
||
font-size: 16px;
|
||
}
|
||
.subtitle {
|
||
color: var(--vp-c-text-2);
|
||
font-size: 13px;
|
||
margin-top: 4px;
|
||
}
|
||
|
||
.modes {
|
||
display: flex;
|
||
gap: 8px;
|
||
flex-wrap: wrap;
|
||
}
|
||
.mode {
|
||
border: 1px solid var(--vp-c-divider);
|
||
background: var(--vp-c-bg);
|
||
padding: 6px 12px;
|
||
border-radius: 6px;
|
||
cursor: pointer;
|
||
font-size: 13px;
|
||
transition: all 0.2s;
|
||
}
|
||
.mode:hover {
|
||
background: var(--vp-c-bg-soft);
|
||
}
|
||
.mode.active {
|
||
border-color: var(--vp-c-brand);
|
||
color: var(--vp-c-brand);
|
||
background: var(--vp-c-brand-dimm);
|
||
}
|
||
|
||
.preview {
|
||
border: 1px solid var(--vp-c-divider);
|
||
border-radius: 12px;
|
||
padding: 24px;
|
||
background: var(--vp-c-bg);
|
||
display: flex;
|
||
flex-direction: column;
|
||
gap: 16px;
|
||
transition: all 0.2s;
|
||
}
|
||
|
||
.hint {
|
||
color: var(--vp-c-text-2);
|
||
font-size: 13px;
|
||
margin-bottom: 8px;
|
||
}
|
||
.badge {
|
||
display: inline-flex;
|
||
align-items: center;
|
||
justify-content: center;
|
||
width: 20px;
|
||
height: 20px;
|
||
border-radius: 6px;
|
||
background: var(--vp-c-bg-soft);
|
||
border: 1px solid var(--vp-c-divider);
|
||
margin-right: 12px;
|
||
font-weight: 800;
|
||
font-size: 12px;
|
||
flex-shrink: 0;
|
||
}
|
||
|
||
.hero {
|
||
margin: 0;
|
||
cursor: pointer;
|
||
display: flex;
|
||
align-items: center;
|
||
line-height: 1.4;
|
||
}
|
||
.desc {
|
||
margin: 0;
|
||
color: var(--vp-c-text-2);
|
||
cursor: pointer;
|
||
display: flex;
|
||
align-items: center;
|
||
line-height: 1.5;
|
||
}
|
||
.cta {
|
||
width: fit-content;
|
||
border: 1px solid var(--vp-c-divider);
|
||
border-radius: 8px;
|
||
padding: 8px 16px;
|
||
cursor: pointer;
|
||
background: var(--vp-c-bg);
|
||
display: flex;
|
||
align-items: center;
|
||
font-size: 14px;
|
||
transition: all 0.2s;
|
||
}
|
||
|
||
.selected {
|
||
outline: 2px solid var(--vp-c-brand);
|
||
outline-offset: 4px;
|
||
border-radius: 4px;
|
||
}
|
||
|
||
.click-tip {
|
||
margin-top: 6px;
|
||
color: var(--vp-c-text-2);
|
||
font-size: 13px;
|
||
}
|
||
|
||
.preview.css .hero {
|
||
color: v-bind('DEMO_CONFIG.colors.primary');
|
||
font-size: 24px;
|
||
}
|
||
.preview.css .desc {
|
||
color: v-bind('DEMO_CONFIG.colors.text');
|
||
}
|
||
.preview.css .cta {
|
||
background: v-bind('DEMO_CONFIG.colors.primary');
|
||
color: v-bind('DEMO_CONFIG.colors.btnText');
|
||
border-color: v-bind('DEMO_CONFIG.colors.primary');
|
||
border-radius: 10px;
|
||
}
|
||
|
||
.preview.js .cta {
|
||
background: #22c55e;
|
||
color: #fff;
|
||
border-color: #22c55e;
|
||
box-shadow: 0 4px 12px rgba(34, 197, 94, 0.25);
|
||
}
|
||
.preview.js {
|
||
border-color: rgba(34, 197, 94, 0.4);
|
||
}
|
||
|
||
.code-block {
|
||
background: var(--vp-c-bg-alt);
|
||
border: 1px solid var(--vp-c-divider);
|
||
border-radius: 10px;
|
||
padding: 16px;
|
||
}
|
||
.code-title {
|
||
font-weight: 700;
|
||
margin-bottom: 8px;
|
||
font-size: 13px;
|
||
color: var(--vp-c-text-2);
|
||
}
|
||
.code-content {
|
||
background: #0b1221;
|
||
color: #e5e7eb;
|
||
border-radius: 8px;
|
||
padding: 16px;
|
||
font-family: var(--vp-font-family-mono);
|
||
font-size: 13px;
|
||
overflow-x: auto;
|
||
line-height: 1.6;
|
||
}
|
||
|
||
.line {
|
||
min-height: 1.6em;
|
||
}
|
||
.hl {
|
||
background: var(--vp-c-brand-dimm);
|
||
border-left: 3px solid var(--vp-c-brand);
|
||
border-radius: 4px;
|
||
display: block;
|
||
width: 100%;
|
||
padding-left: 8px; /* Offset text to account for border */
|
||
font-weight: bold; /* Make text bolder */
|
||
/* color: white; Removed to fix visibility issue on light theme if brand-dimm is light */
|
||
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1); /* Add subtle shadow */
|
||
}
|
||
|
||
.explain {
|
||
display: grid;
|
||
grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
|
||
gap: 10px;
|
||
}
|
||
.card {
|
||
background: var(--vp-c-bg);
|
||
border: 1px dashed var(--vp-c-divider);
|
||
border-radius: 10px;
|
||
padding: 10px;
|
||
}
|
||
.card-title {
|
||
font-weight: 700;
|
||
margin-bottom: 4px;
|
||
}
|
||
.card-body {
|
||
color: var(--vp-c-text-2);
|
||
font-size: 13px;
|
||
line-height: 1.5;
|
||
}
|
||
|
||
.map {
|
||
display: flex;
|
||
flex-direction: column;
|
||
gap: 8px;
|
||
margin-top: 8px;
|
||
}
|
||
.map-row {
|
||
display: flex;
|
||
justify-content: space-between;
|
||
gap: 10px;
|
||
padding: 10px;
|
||
border-radius: 10px;
|
||
border: 1px solid var(--vp-c-divider);
|
||
background: var(--vp-c-bg);
|
||
cursor: pointer;
|
||
text-align: left;
|
||
}
|
||
.map-row.active {
|
||
border-color: var(--vp-c-brand);
|
||
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
|
||
}
|
||
.left {
|
||
font-weight: 800;
|
||
}
|
||
.right {
|
||
color: var(--vp-c-text-2);
|
||
}
|
||
.steps {
|
||
margin: 8px 0 0 18px;
|
||
color: var(--vp-c-text-2);
|
||
line-height: 1.6;
|
||
}
|
||
|
||
.one-line {
|
||
background: var(--vp-c-bg);
|
||
border: 1px solid var(--vp-c-divider);
|
||
border-radius: 10px;
|
||
padding: 10px 12px;
|
||
font-size: 14px;
|
||
}
|
||
.one-line-title {
|
||
font-weight: 800;
|
||
}
|
||
.one-line-body {
|
||
color: var(--vp-c-text-2);
|
||
}
|
||
</style>
|