Implement "conversation lock" for issue comments (#5073)

templates/repo/issue/view_content.tmpl

@@ -69,7 +69,38 @@
 			{{if and .Issue.IsPull (not $.Repository.IsArchived)}}
 				{{ template "repo/issue/view_content/pull". }}
 			{{end}}
-
+			{{if .IsSigned}}
+				{{ if or .IsRepoAdmin .IsRepoIssuesWriter (or (not .Issue.IsLocked)) }}
+				<div class="comment form">
+					<a class="avatar" href="{{.SignedUser.HomeLink}}">
+						<img src="{{.SignedUser.RelAvatarLink}}">
+					</a>
+					<div class="content">
+						<form class="ui segment form" id="comment-form" action="{{$.RepoLink}}/issues/{{.Issue.Index}}/comments" method="post">
+							{{template "repo/issue/comment_tab" .}}
+							{{.CsrfTokenHtml}}
+							<input id="status" name="status" type="hidden">
+							<div class="text right">
+								{{if and (or .IsIssueWriter .IsIssuePoster) (not .DisableStatusChange)}}
+									{{if .Issue.IsClosed}}
+										<div id="status-button" class="ui green basic button" tabindex="6" data-status="{{.i18n.Tr "repo.issues.reopen_issue"}}" data-status-and-comment="{{.i18n.Tr "repo.issues.reopen_comment_issue"}}" data-status-val="reopen">
+											{{.i18n.Tr "repo.issues.reopen_issue"}}
+										</div>
+									{{else}}
+										<div id="status-button" class="ui red basic button" tabindex="6" data-status="{{.i18n.Tr "repo.issues.close_issue"}}" data-status-and-comment="{{.i18n.Tr "repo.issues.close_comment_issue"}}" data-status-val="close">
+											{{.i18n.Tr "repo.issues.close_issue"}}
+										</div>
+									{{end}}
+								{{end}}
+								<button class="ui green button" tabindex="5">
+									{{.i18n.Tr "repo.issues.create_comment"}}
+								</button>
+							</div>
+						</form>
+					</div>
+				</div>
+				{{ end }}
+			{{else}}
 			{{if .Repository.IsArchived}}
 				<div class="ui warning message">
 					{{if .Issue.IsPull}}
@@ -114,6 +145,7 @@
 					</div>
 				{{end}}
 			{{end}}
+		{{end}}
 		</ui>
 	</div>