YschcmsFront/src/components/ThemeSwitcher.vue

<script setup lang="ts">
/* 管理端配色切换器（yh-theme 定稿 07-seam-pure 顶栏「配色」胶囊，方案 §6.5）。
 * 状态唯一来源：utils/theme（localStorage 持久化 + <html> 档位类名），与门户皮肤包正交。 */
import { onBeforeUnmount, onMounted, ref } from "vue";
import {
    loadThemeState,
    saveThemeState,
    applyThemeState,
    type ThemeName,
    type ThemeState,
} from "@/utils/theme";

const THEME_META: { name: ThemeName; label: string; color: string }[] = [
    { name: "blue", label: "原版靛蓝", color: "#577afb" },
    { name: "ocean", label: "云海蓝", color: "#2f7ce0" },
    { name: "ink", label: "石墨墨", color: "#3d4d63" },
    { name: "violet", label: "靛紫", color: "#6d5ae0" },
    { name: "teal", label: "松石绿", color: "#0d9488" },
];

const wrapEl = ref<HTMLElement | null>(null);
const open = ref(false);
const state = ref<ThemeState>(loadThemeState());
/* 挂载即把存储态落到 <html>（与 main.ts initTheme 同源幂等；组件晚于引导挂载时也自洽） */
applyThemeState(state.value);

function commit(patch: Partial<ThemeState>) {
    state.value = { ...state.value, ...patch };
    applyThemeState(state.value);
    saveThemeState(state.value);
}

function toggle(ev: MouseEvent) {
    ev.stopPropagation();
    open.value = !open.value;
}

/** 切换器外任意点击即收起（弹层内部点击由 wrap 判定放过） */
function onDocClick(ev: MouseEvent) {
    if (open.value && wrapEl.value && !wrapEl.value.contains(ev.target as Node)) {
        open.value = false;
    }
}

onMounted(() => document.addEventListener("click", onDocClick, true));
onBeforeUnmount(() => document.removeEventListener("click", onDocClick, true));
</script>

<template>
    <div ref="wrapEl" class="theme-wrap">
        <button type="button" class="theme-btn" :class="{ on: open }" @click="toggle">
            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.7" stroke-linecap="round" stroke-linejoin="round">
                <path d="M12 3a9 9 0 1 0 0 18c1.2 0 1.9-.9 1.9-1.8 0-.6-.3-1-.5-1.4-.2-.4-.4-.8-.4-1.3 0-.9.8-1.7 1.8-1.7H17a4 4 0 0 0 4-4c0-4.3-4-7.8-9-7.8z"/>
                <circle cx="7.6" cy="11.2" r="1.1"/><circle cx="11" cy="7.6" r="1.1"/><circle cx="15.4" cy="8.6" r="1.1"/>
            </svg>
            <span>配色</span>
            <svg class="caret" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.7" stroke-linecap="round" stroke-linejoin="round">
                <path d="M5.5 9.5l6.5 6.5 6.5-6.5"/>
            </svg>
        </button>

        <div class="theme-pop" :class="{ open }">
            <p class="tp-head">主题色</p>
            <div class="tp-grid">
                <button
                    v-for="t in THEME_META"
                    :key="t.name"
                    type="button"
                    class="theme-opt"
                    :class="{ active: state.theme === t.name }"
                    @click="commit({ theme: t.name })"
                >
                    <i :style="{ background: t.color }"></i>{{ t.label }}
                </button>
            </div>
            <div class="tp-sep"></div>
            <p class="tp-head">侧栏样式</p>
            <label class="tp-row">
                <span>侧栏跟随顶栏色</span>
                <span class="sw">
                    <input type="checkbox" :checked="state.sideFollow" @change="commit({ sideFollow: ($event.target as HTMLInputElement).checked })" />
                    <i></i>
                </span>
            </label>
            <label class="tp-row" style="margin-top: 9px">
                <span>侧栏深色（关＝浅色）</span>
                <span class="sw">
                    <input type="checkbox" :checked="state.sideDeep" @change="commit({ sideDeep: ($event.target as HTMLInputElement).checked })" />
                    <i></i>
                </span>
            </label>
            <div class="tp-sep"></div>
            <label class="tp-row">
                <span>顶部过渡色（渐变）</span>
                <span class="sw">
                    <input type="checkbox" :checked="state.gradOn" @change="commit({ gradOn: ($event.target as HTMLInputElement).checked })" />
                    <i></i>
                </span>
            </label>
        </div>
    </div>
</template>

<style scoped>
/* 皮肤规格照搬定稿 07-seam-pure.html .theme-wrap/.theme-btn/.theme-pop 段 */
.theme-wrap {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}
.theme-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    height: 30px;
    padding: 0 11px;
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.34);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    font-size: 12.5px;
    transition: background 0.16s, border-color 0.16s;
}
.theme-btn:hover,
.theme-btn.on {
    background: rgba(255, 255, 255, 0.26);
    border-color: rgba(255, 255, 255, 0.6);
}
.theme-btn svg {
    width: 14px;
    height: 14px;
    display: block;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.theme-btn svg circle {
    fill: currentColor;
    stroke: none;
}
.theme-btn .caret {
    width: 11px;
    height: 11px;
    opacity: 0.85;
    transition: transform 0.18s;
}
.theme-btn.on .caret {
    transform: rotate(180deg);
}
.theme-pop {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    width: 224px;
    background: #fff;
    color: var(--text, #1e2635);
    border-radius: 12px;
    border: 1px solid var(--line, #e9edf5);
    padding: 12px;
    box-shadow: 0 12px 34px -10px rgba(16, 24, 40, 0.28), 0 2px 6px rgba(16, 24, 40, 0.08);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: 0.18s;
    z-index: 40;
}
.theme-pop.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.tp-head {
    font-size: 11.5px;
    color: var(--text-3, #98a1b2);
    letter-spacing: 0.5px;
    margin: 0 2px 8px;
}
.tp-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}
.theme-opt {
    display: flex;
    align-items: center;
    gap: 7px;
    height: 32px;
    padding: 0 8px;
    cursor: pointer;
    text-align: left;
    border: 1px solid var(--line, #e9edf5);
    border-radius: 8px;
    background: #fff;
    color: var(--text-2, #5a6478);
    font-size: 12px;
    transition: 0.15s;
    font-family: inherit;
}
.theme-opt:hover {
    border-color: #cfd7e6;
    background: #fafbfe;
}
.theme-opt i {
    width: 13px;
    height: 13px;
    border-radius: 50%;
    flex: 0 0 auto;
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.08);
}
.theme-opt.active {
    border-color: var(--brand, #577afb);
    color: var(--brand, #577afb);
    background: var(--brand-soft, #eef2ff);
    font-weight: 600;
}
.tp-sep {
    height: 1px;
    background: var(--line, #e9edf5);
    margin: 12px 0 10px;
}
.tp-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12.5px;
    color: var(--text-2, #5a6478);
    cursor: pointer;
    padding: 0 2px;
}
.sw {
    position: relative;
    width: 38px;
    height: 21px;
    flex: 0 0 auto;
}
.sw input {
    position: absolute;
    inset: 0;
    opacity: 0;
    margin: 0;
    cursor: pointer;
    z-index: 1;
}
.sw i {
    position: absolute;
    inset: 0;
    border-radius: 999px;
    background: #d7dce6;
    transition: background 0.2s;
    pointer-events: none;
}
.sw i::after {
    content: "";
    position: absolute;
    top: 2.5px;
    left: 2.5px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 3px rgba(16, 24, 40, 0.28);
    transition: transform 0.2s;
}
.sw input:checked + i {
    background: var(--brand, #577afb);
}
.sw input:checked + i::after {
    transform: translateX(17px);
}
</style>