feat(新增平台): 新增linux amd64桌面支持

internal/webview/webview.go

@@ -92,7 +92,7 @@ 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", "child", "remove", "write.begin", "write.data", "write.commit", "write.abort", "fonts", "ready", "title"} {
+	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", "title"} {
 		bindings["ofdgo.host."+name] = func(ctx context.Context, args any) (any, error) { return h.call(ctx, name, args) }
 	}
 	static := http.FileServerFS(webuiassets.NativeFS)
@@ -248,17 +248,22 @@ func (h *Host) emit(name string, value any) {
 func (h *Host) openPaths(names []string) {
 	files := make([]any, 0, len(names))
 	for _, name := range names {
-		handle, err := h.files.add(name, false)
+		file, err := h.files.addDrop(name)
 		if err != nil {
 			h.emit("ofdgo.error", err.Error())
 			continue
 		}
-		file, err := h.files.file(handle["nativeHandle"].(string))
-		if err == nil {
-			files = append(files, file)
-		}
+		files = append(files, file)
+	}
+	h.mu.Lock()
+	w := h.window
+	h.mu.Unlock()
+	if w != nil && w.Emit("ofdgo.files", files) == nil {
+		return
+	}
+	for _, file := range files {
+		h.files.discardDrop(file.(map[string]any)["nativeFile"].(string))
 	}
-	h.emit("ofdgo.files", files)
 }
 
 // call 执行宿主协议并保留业务结果结构
@@ -455,6 +460,9 @@ func (h *Host) call(ctx context.Context, name string, value any) (any, error) {
 	case "release":
 		h.files.release(text("file"))
 		return nil, nil
+	case "drop.release":
+		h.files.discardDrop(text("file"))
+		return nil, nil
 	case "child":
 		value, err := h.files.child(text("handle"), text("name"), flag("directory"), flag("create"))
 		if errors.Is(err, os.ErrNotExist) {
@@ -819,7 +827,11 @@ func windowOptions(dataDir string) (guigo.Options, error) {
 		if err != nil {
 			return guigo.Options{}, err
 		}
-		dataDir = filepath.Join(cache, "OFDGo")
+		name := "ofdgo"
+		if runtime.GOOS == "windows" {
+			name = "OFDGo"
+		}
+		dataDir = filepath.Join(cache, name)
 	}
 	dataDir, err := filepath.Abs(dataDir)
 	if err != nil {

internal/webview/webview_files.go

@@ -47,6 +47,7 @@ type fileEntry struct {
 	saveTarget ofdgo.Output
 	readers    int
 	retired    bool
+	dropHandle string
 }
 
 // fileStore 管理窗口范围内的文件授权和临时数据
@@ -137,6 +138,59 @@ func (s *fileStore) add(name string, directory bool) (map[string]any, error) {
 	return s.descriptor(id), nil
 }
 
+// addDrop 登记拖放文件及读取快照，失败时撤销本次授权
+// 入参: name 拖放文件路径
+// 返回: map[string]any 文件描述, error 登记错误
+func (s *fileStore) addDrop(name string) (map[string]any, error) {
+	handle, err := s.add(name, false)
+	if err != nil {
+		return nil, err
+	}
+	id := handle["nativeHandle"].(string)
+	file, err := s.file(id)
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if err == nil && !s.closed {
+		if entry := s.entries[file["nativeFile"].(string)]; entry != nil && s.entries[id] != nil {
+			entry.dropHandle = id
+			file["drop"] = true
+			return file, nil
+		}
+		err = os.ErrNotExist
+	}
+	delete(s.entries, id)
+	if file != nil {
+		key := file["nativeFile"].(string)
+		if entry := s.entries[key]; entry != nil {
+			delete(s.entries, key)
+			if entry.file != nil {
+				entry.file.Close()
+			}
+		}
+	}
+	if err == nil {
+		err = os.ErrClosed
+	}
+	return nil, err
+}
+
+// discardDrop 撤销未接收的拖放文件及其授权，不删除源文件
+// 入参: id 拖放读取快照标识
+func (s *fileStore) discardDrop(id string) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	entry := s.entries[id]
+	if entry == nil || entry.dropHandle == "" {
+		return
+	}
+	delete(s.entries, entry.dropHandle)
+	delete(s.entries, id)
+	entry.retired = true
+	if entry.file != nil && entry.readers == 0 {
+		entry.file.Close()
+	}
+}
+
 // save 登记用户选择的输出路径
 // 入参: name 输出文件路径
 // 返回: map[string]any 句柄描述

internal/webview/webview_linux.go

@@ -0,0 +1,56 @@
+// 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.
+
+package webview
+
+import (
+	"os"
+	"strings"
+)
+
+// conversionMemory 未提供系统内存探测时仅按并行数调度
+var conversionMemory func() int64
+
+// fontNameLanguage 获取Linux区域设置对应的OpenType名称表标识
+// 返回: uint16 名称表平台标识, uint16 显示语言标识
+func fontNameLanguage() (uint16, uint16) {
+	locale := ""
+	for _, name := range []string{"LC_ALL", "LC_MESSAGES", "LANG"} {
+		if locale = os.Getenv(name); locale != "" {
+			break
+		}
+	}
+	locale = strings.ToLower(strings.ReplaceAll(locale, "-", "_"))
+	locale, _, _ = strings.Cut(locale, ".")
+	locale, _, _ = strings.Cut(locale, "@")
+	switch locale {
+	case "zh", "zh_cn", "zh_hans":
+		return 3, 0x0804
+	case "zh_hk":
+		return 3, 0x0c04
+	case "zh_mo":
+		return 3, 0x1404
+	case "zh_tw", "zh_hant":
+		return 3, 0x0404
+	case "zh_sg":
+		return 3, 0x1004
+	case "ja", "ja_jp":
+		return 3, 0x0411
+	case "ko", "ko_kr":
+		return 3, 0x0412
+	case "c", "posix", "en", "en_us":
+		return 3, 0x0409
+	}
+	return 0xffff, 0xffff
+}

internal/webview/webview_other.go

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-//go:build !windows
+//go:build !windows && !linux
 
 package webview