feat: 界面缩放改用后端持久化 + 原生 webview zoom
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@@ -1,10 +1,11 @@
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import { invoke } from '@tauri-apps/api/core'
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import { ref, watch } from 'vue'
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/**
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* 启动器界面缩放(百分比)。
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* 这是纯本地的显示偏好,用 localStorage 保存即可,无需写入后端设置数据库。
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* 通过 Tauri 原生 webview zoom(Rust 侧 set_zoom)应用,
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* 缩放值持久化到后端设置数据库(settings.ui_scale)。
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*/
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const UI_SCALE_STORAGE_KEY = 'starlight-ui-scale'
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const MIN_UI_SCALE = 50
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const MAX_UI_SCALE = 200
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const DEFAULT_UI_SCALE = 100
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@@ -15,18 +16,7 @@ function clampUiScale(value: number): number {
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return Math.min(MAX_UI_SCALE, Math.max(MIN_UI_SCALE, Math.round(value)))
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}
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/** 从 localStorage 读取已保存的缩放值。 */
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function readStoredUiScale(): number {
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try {
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const raw = localStorage.getItem(UI_SCALE_STORAGE_KEY)
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if (raw === null) return DEFAULT_UI_SCALE
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return clampUiScale(Number(raw))
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} catch {
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return DEFAULT_UI_SCALE
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}
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}
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export const uiScale = ref(readStoredUiScale())
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export const uiScale = ref(DEFAULT_UI_SCALE)
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export function setUiScale(value: number): void {
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uiScale.value = clampUiScale(value)
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@@ -38,23 +28,27 @@ export function resetUiScale(): void {
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export { DEFAULT_UI_SCALE, MAX_UI_SCALE, MIN_UI_SCALE }
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/** 把缩放应用到文档根节点,并在变化时持久化。 */
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export function installUiScale(): void {
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const apply = (value: number) => {
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const factor = String(value / 100)
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const root = document.documentElement
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root.style.setProperty('--ui-scale', factor)
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// 用 CSS zoom 整体缩放界面(含内嵌网页),在 WebView2/WebKit 上最可靠。
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root.style.setProperty('zoom', factor)
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/**
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* 把缩放值应用到原生 webview。
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* 同时保留 --ui-scale CSS 变量,供依赖它的样式/锚点使用。
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*/
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async function applyUiScale(value: number): Promise<void> {
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const factor = value / 100
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document.documentElement.style.setProperty('--ui-scale', String(factor))
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try {
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await invoke('plugin:settings|set_ui_scale', { factor })
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} catch (error) {
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console.warn('应用界面缩放失败', error)
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}
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}
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apply(uiScale.value)
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/**
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* 初始化缩放:应用当前值,并在变化时同步到原生 webview。
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* 初值由调用方(App 初始化流程)在读取后端设置后通过 setUiScale 覆盖。
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*/
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export function installUiScale(): void {
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void applyUiScale(uiScale.value)
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watch(uiScale, (value) => {
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apply(value)
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try {
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localStorage.setItem(UI_SCALE_STORAGE_KEY, String(value))
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} catch (error) {
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console.warn('保存界面缩放失败', error)
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}
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void applyUiScale(value)
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})
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}
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