Fix readme path and markdown link paste (#34755) (#34760)

Backport #34755 by wxiaoguang

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

routers/web/repo/view_readme.go

@@ -150,7 +150,7 @@ func prepareToRenderReadmeFile(ctx *context.Context, subfolder string, readmeFil
 	}
 
 	ctx.Data["RawFileLink"] = ""
-	ctx.Data["ReadmeInList"] = true
+	ctx.Data["ReadmeInList"] = path.Join(subfolder, readmeFile.Name()) // the relative path to the readme file to the current tree path
 	ctx.Data["ReadmeExist"] = true
 	ctx.Data["FileIsSymlink"] = readmeFile.IsLink()
 
@@ -162,7 +162,7 @@ func prepareToRenderReadmeFile(ctx *context.Context, subfolder string, readmeFil
 	defer dataRc.Close()
 
 	ctx.Data["FileIsText"] = fInfo.isTextFile
-	ctx.Data["FileTreePath"] = path.Join(subfolder, readmeFile.Name())
+	ctx.Data["FileTreePath"] = path.Join(ctx.Repo.TreePath, subfolder, readmeFile.Name())
 	ctx.Data["FileSize"] = fInfo.fileSize
 	ctx.Data["IsLFSFile"] = fInfo.isLFSFile
 

templates/repo/view_file.tmpl

@@ -27,7 +27,7 @@
 		<div class="file-header-left tw-flex tw-items-center tw-py-2 tw-pr-4">
 			{{if .ReadmeInList}}
 				{{svg "octicon-book" 16 "tw-mr-2"}}
-				<strong><a class="muted" href="#readme">{{.FileTreePath}}</a></strong>
+				<strong><a class="muted" href="#readme">{{.ReadmeInList}}</a></strong>
 			{{else}}
 				{{template "repo/file_info" .}}
 			{{end}}

web_src/js/features/comp/EditorUpload.ts

@@ -135,7 +135,7 @@ function handleClipboardText(textarea: HTMLTextAreaElement, e: ClipboardEvent, p
 
   // when pasting links over selected text, turn it into [text](link)
   const pastedAsMarkdown = pasteAsMarkdownLink(textarea, pastedText);
-  if (pastedText) {
+  if (pastedAsMarkdown) {
     e.preventDefault();
     replaceTextareaSelection(textarea, pastedAsMarkdown);
   }