refactor(界面重构): 支持三种主题

2026-10-30 15:31:49 +08:00 · 2026-10-30 12:00:42 +08:00
1 parent 385d7aa531
commit 8d435fe109
@@ -48,6 +48,9 @@ const applicationDownloadURL = "https://ofdgo.aite.me/releases/"

 // Host 连接桌面系统能力和共用文档业务
 type Host struct {
+	themeMu        sync.Mutex
+	theme          applicationTheme
+	themePath      string
 	mu             sync.Mutex
 	window         *guigo.Window
 	files          *fileStore
@@ -104,7 +107,11 @@ func Run(ctx context.Context, paths []string, dataDir string) error {
 			return err
 		}
 	}
-	h := &Host{pendingPaths: paths}
+	h := &Host{pendingPaths: paths, themePath: filepath.Join(options.UserDataDir, "appearance.json")}
+	if err := h.loadTheme(); err != nil {
+		return err
+	}
+	options.TitleBarColors = themeColors(h.theme.Dark)
 	data, err := json.Marshal(paths)
 	if err != nil {
 		return err
@@ -142,7 +149,7 @@ func Run(ctx context.Context, paths []string, dataDir string) error {
 	h.conversionPool = h.resources.ConversionPool()
 	defer h.close()
 	bindings := make(map[string]guigo.HandlerFunc)
-	for _, name := range []string{"engine.open", "engine.close", "engine.call", "engine.start", "engine.cancel", "engine.finish", "batch", "open", "save", "directory", "file", "release", "drop.release", "child", "remove", "write.begin", "write.data", "write.commit", "write.abort", "fonts", "ready", "launch.done", "title", "window.info", "window.drag", "window.close", "update.check", "update.open", "association.query", "association.register", "association.remove", "print.capabilities", "print.dialog", "print.printers", "print.query", "print.properties", "print"} {
+	for _, name := range []string{"engine.open", "engine.close", "engine.call", "engine.start", "engine.cancel", "engine.finish", "batch", "open", "save", "directory", "file", "release", "drop.release", "child", "remove", "write.begin", "write.data", "write.commit", "write.abort", "fonts", "ready", "launch.done", "title", "window.info", "window.drag", "window.close", "appearance", "update.check", "update.open", "association.query", "association.register", "association.remove", "print.capabilities", "print.dialog", "print.printers", "print.query", "print.properties", "print"} {
 		bindings["ofdgo.host."+name] = func(ctx context.Context, args any) (any, error) { return h.call(ctx, name, args) }
 	}
 	static := http.FileServerFS(webuiassets.NativeFS)
@@ -155,6 +162,18 @@ func Run(ctx context.Context, paths []string, dataDir string) error {
 			http.NotFound(w, r)
 			return
 		}
+		if r.URL.Path == "/" || r.URL.Path == "/index.html" {
+			data, err := h.themeIndex()
+			if err != nil {
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+			w.Header().Set("Content-Type", "text/html; charset=utf-8")
+			w.Header().Set("X-OFDGo-Build-Version", build.Version)
+			w.Header().Set("Cache-Control", "no-store")
+			w.Write(data)
+			return
+		}
 		w.Header().Set("Cache-Control", "no-store")
 		w.Header().Set("X-OFDGo-Build-Version", build.Version)
 		static.ServeHTTP(w, r)
@@ -237,7 +256,13 @@ func (h *Host) resource(r *http.Request) (*guigo.Resource, error) {
 		if name == "" {
 			name = "index.html"
 		}
-		data, err := webuiassets.NativeFS.ReadFile(name)
+		var data []byte
+		var err error
+		if name == "index.html" {
+			data, err = h.themeIndex()
+		} else {
+			data, err = webuiassets.NativeFS.ReadFile(name)
+		}
 		if err != nil {
 			return nil, nil
 		}
@@ -411,6 +436,8 @@ func (h *Host) call(ctx context.Context, name string, value any) (any, error) {
 	text := func(key string) string { value, _ := args[key].(string); return value }
 	flag := func(key string) bool { value, _ := args[key].(bool); return value }
 	switch name {
+	case "appearance":
+		return nil, h.setTheme(applicationTheme{Mode: text("mode"), Dark: flag("dark")})
 	case "print.capabilities", "print.dialog", "print.printers", "print.query", "print.properties", "print":
 		h.mu.Lock()
 		window := h.window
@@ -1186,22 +1213,17 @@ func windowOptions(dataDir string) (guigo.Options, error) {
 		return guigo.Options{}, err
 	}
 	return guigo.Options{
-		AppID:    appID,
-		Title:    "OFDGo - OFD编辑器",
-		TitleBar: guigo.TitleBarContent,
-		TitleBarColors: guigo.TitleBarColors{
-			Background:         "#e8edf0",
-			Foreground:         "#1f2428",
-			InactiveBackground: "#eef1f4",
-			InactiveForeground: "#66737f",
-		},
-		Icon:        icon,
-		Width:       1440,
-		Height:      900,
-		MinWidth:    360,
-		MinHeight:   240,
-		Center:      true,
-		Maximized:   true,
-		UserDataDir: dataDir,
+		AppID:          appID,
+		Title:          "OFDGo - OFD编辑器",
+		TitleBar:       guigo.TitleBarContent,
+		TitleBarColors: themeColors(false),
+		Icon:           icon,
+		Width:          1440,
+		Height:         900,
+		MinWidth:       360,
+		MinHeight:      240,
+		Center:         true,
+		Maximized:      true,
+		UserDataDir:    dataDir,
 	}, nil
 }
@@ -0,0 +1,130 @@
+// Copyright 2025-2026 肖其顿 (XIAO QI DUN)
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//go:build !js || !wasm
+
+package webview
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/xiaoqidun/guigo"
+	webuiassets "github.com/xiaoqidun/ofdgo/assets/webui"
+)
+
+// applicationTheme 保存应用主题偏好及最后一次解析的系统外观
+type applicationTheme struct {
+	Mode string `json:"mode"`
+	Dark bool   `json:"dark"`
+}
+
+// themeColors 返回应用对应外观的原生标题栏配色
+// 入参: dark 是否使用深色
+// 返回: guigo.TitleBarColors 标题栏配色
+func themeColors(dark bool) guigo.TitleBarColors {
+	if dark {
+		return guigo.TitleBarColors{Background: "#20272b", Foreground: "#e0e7eb", InactiveBackground: "#242b30", InactiveForeground: "#9aa8b1"}
+	}
+	return guigo.TitleBarColors{Background: "#e8edee", Foreground: "#263238", InactiveBackground: "#eef1f3", InactiveForeground: "#728087"}
+}
+
+// loadTheme 在创建窗口前读取用户目录中的主题偏好
+// 返回: error 读取或解析错误
+func (h *Host) loadTheme() error {
+	h.theme = applicationTheme{Mode: "system"}
+	data, err := os.ReadFile(h.themePath)
+	if os.IsNotExist(err) {
+		return nil
+	}
+	if err != nil {
+		return err
+	}
+	if err := json.Unmarshal(data, &h.theme); err != nil {
+		return err
+	}
+	return h.theme.validate()
+}
+
+// validate 检查应用主题及解析后的配色是否一致
+// 返回: error 偏好错误
+func (a applicationTheme) validate() error {
+	if a.Mode != "system" && a.Mode != "light" && a.Mode != "dark" {
+		return fmt.Errorf("主题无效")
+	}
+	if a.Mode == "light" && a.Dark || a.Mode == "dark" && !a.Dark {
+		return fmt.Errorf("主题配色无效")
+	}
+	return nil
+}
+
+// themeIndex 在页面首次绘制前提供当前主题偏好
+// 返回: []byte 页面内容, error 资源读取错误
+func (h *Host) themeIndex() ([]byte, error) {
+	data, err := webuiassets.NativeFS.ReadFile("index.html")
+	if err != nil {
+		return nil, err
+	}
+	h.themeMu.Lock()
+	mode := h.theme.Mode
+	h.themeMu.Unlock()
+	if mode == "" {
+		mode = "system"
+	}
+	return bytes.Replace(data, []byte(`<html lang="zh-CN">`), []byte(`<html lang="zh-CN" data-theme-mode="`+mode+`">`), 1), nil
+}
+
+// setTheme 串行保存应用偏好并同步当前窗口配色
+// 入参: value 已解析的主题偏好
+// 返回: error 校验、持久化或窗口更新错误
+func (h *Host) setTheme(value applicationTheme) error {
+	if err := value.validate(); err != nil {
+		return err
+	}
+	h.themeMu.Lock()
+	defer h.themeMu.Unlock()
+	h.mu.Lock()
+	window := h.window
+	h.mu.Unlock()
+	if window == nil {
+		return fmt.Errorf("窗口尚未就绪")
+	}
+	if h.theme != value {
+		data, err := json.Marshal(value)
+		if err != nil {
+			return err
+		}
+		file, err := os.CreateTemp(filepath.Dir(h.themePath), "appearance-*")
+		if err != nil {
+			return err
+		}
+		defer os.Remove(file.Name())
+		_, writeErr := file.Write(data)
+		closeErr := file.Close()
+		if writeErr != nil {
+			return writeErr
+		}
+		if closeErr != nil {
+			return closeErr
+		}
+		if err := os.Rename(file.Name(), h.themePath); err != nil {
+			return err
+		}
+		h.theme = value
+	}
+	return window.SetTitleBarColors(themeColors(value.Dark))
+}