Refactor editor (#34780)

A complete rewrite

services/forms/repo_form_editor.go

@@ -0,0 +1,57 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forms
+
+import (
+	"net/http"
+
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/web/middleware"
+	"code.gitea.io/gitea/services/context"
+
+	"gitea.com/go-chi/binding"
+)
+
+type CommitCommonForm struct {
+	TreePath      string `binding:"MaxSize(500)"`
+	CommitSummary string `binding:"MaxSize(100)"`
+	CommitMessage string
+	CommitChoice  string `binding:"Required;MaxSize(50)"`
+	NewBranchName string `binding:"GitRefName;MaxSize(100)"`
+	LastCommit    string
+	Signoff       bool
+	CommitEmail   string
+}
+
+func (f *CommitCommonForm) Validate(req *http.Request, errs binding.Errors) binding.Errors {
+	ctx := context.GetValidateContext(req)
+	return middleware.Validate(errs, ctx.Data, f, ctx.Locale)
+}
+
+type CommitCommonFormInterface interface {
+	GetCommitCommonForm() *CommitCommonForm
+}
+
+func (f *CommitCommonForm) GetCommitCommonForm() *CommitCommonForm {
+	return f
+}
+
+type EditRepoFileForm struct {
+	CommitCommonForm
+	Content optional.Option[string]
+}
+
+type DeleteRepoFileForm struct {
+	CommitCommonForm
+}
+
+type UploadRepoFileForm struct {
+	CommitCommonForm
+	Files []string
+}
+
+type CherryPickForm struct {
+	CommitCommonForm
+	Revert bool
+}