use StringUtils.Join for PreviewableExtensions too

Author: silverwind

routers/web/repo/editor.go

@@ -192,7 +192,7 @@ func editFile(ctx *context.Context, isNewFile bool) {
 	}
 	ctx.Data["new_branch_name"] = GetUniquePatchBranchName(ctx)
 	ctx.Data["last_commit"] = ctx.Repo.CommitID
-	ctx.Data["PreviewableExtensions"] = strings.Join(markup.PreviewableExtensions(), ",")
+	ctx.Data["PreviewableExtensions"] = markup.PreviewableExtensions()
 	ctx.Data["LineWrapExtensions"] = setting.Repository.Editor.LineWrapExtensions
 
 	ecDef := GetEditorConfig(ctx, treePath)
@@ -252,7 +252,7 @@ func editFilePost(ctx *context.Context, form forms.EditRepoFileForm, isNewFile b
 	ctx.Data["commit_choice"] = form.CommitChoice
 	ctx.Data["new_branch_name"] = form.NewBranchName
 	ctx.Data["last_commit"] = ctx.Repo.CommitID
-	ctx.Data["PreviewableExtensions"] = strings.Join(markup.PreviewableExtensions(), ",")
+	ctx.Data["PreviewableExtensions"] = markup.PreviewableExtensions()
 	ctx.Data["LineWrapExtensions"] = setting.Repository.Editor.LineWrapExtensions
 	ctx.Data["EditorconfigJson"] = GetEditorConfig(ctx, form.TreePath)
 

templates/repo/editor/edit.tmpl

@@ -46,7 +46,7 @@
 				<div class="ui bottom attached segment tw-p-0">
 					<div class="ui active tab tw-rounded-b" data-tab="write">
 						<textarea id="edit_area" name="content" class="tw-hidden" data-id="repo-{{.Repository.Name}}-{{.TreePath}}"
-							data-previewable-extensions="{{.PreviewableExtensions}}"
+							data-previewable-extensions="{{StringUtils.Join .PreviewableExtensions ","}}"
 							data-line-wrap-extensions="{{StringUtils.Join .LineWrapExtensions ","}}">{{.FileContent}}</textarea>
 						<div class="editor-loading is-loading"></div>
 					</div>