com/templates/repo/branch_dropdown.tmpl

<div class="fitted item choose reference">
	<div class="ui floating filter dropdown custom" data-can-create-branch="{{.CanCreateBranch}}" data-no-results="{{.i18n.Tr "repo.pulls.no_results"}}">
		<div class="ui basic small compact button" @click="menuVisible = !menuVisible" @keyup.enter="menuVisible = !menuVisible">
			<span class="text">
				<i class="octicon octicon-git-branch"></i>
				{{if .IsViewBranch}}{{.i18n.Tr "repo.branch"}}{{else}}{{.i18n.Tr "repo.tree"}}{{end}}:
				<strong>{{if .IsViewBranch}}{{.BranchName}}{{else}}{{ShortSha .BranchName}}{{end}}</strong>
			</span>
			<i class="dropdown icon"></i>
		</div>
		<div class="data" style="display: none" data-mode="{{if .IsViewTag}}tags{{else}}branches{{end}}">
			{{range .Branches}}
				<div class="item branch {{if eq $.BranchName .}}selected{{end}}" data-url="{{$.RepoLink}}/{{if $.PageIsCommits}}commits{{else}}src{{end}}/branch/{{EscapePound .}}{{if $.TreePath}}/{{EscapePound $.TreePath}}{{end}}">{{.}}</div>
			{{end}}
			{{range .Tags}}
				<div class="item tag {{if eq $.BranchName .}}selected{{end}}" data-url="{{$.RepoLink}}/{{if $.PageIsCommits}}commits{{else}}src{{end}}/tag/{{EscapePound .}}{{if $.TreePath}}/{{EscapePound $.TreePath}}{{end}}">{{.}}</div>
			{{end}}
		</div>
		<div class="menu transition" :class="{visible: menuVisible}" v-if="menuVisible" v-cloak>
			<div class="ui icon search input">
				<i class="filter icon"></i>
				<input name="search" ref="searchField" v-model="searchTerm" @keydown="keydown($event)" placeholder="{{.i18n.Tr "repo.filter_branch_and_tag"}}...">
			</div>
			<div class="header branch-tag-choice">
				<div class="ui grid">
					<div class="two column row">
						<a class="reference column" href="#" @click="mode = 'branches'; focusSearchField()">
							<span class="text" :class="{black: mode == 'branches'}">
								<i class="octicon octicon-git-branch"></i> {{.i18n.Tr "repo.branches"}}
							</span>
						</a>
						<a class="reference column" href="#" @click="mode = 'tags'; focusSearchField()">
							<span class="text" :class="{black: mode == 'tags'}">
								<i class="reference tags icon"></i> {{.i18n.Tr "repo.tags"}}
							</span>
						</a>
					</div>
				</div>
			</div>
			<div class="scrolling menu" ref="scrollContainer">
				<div v-for="(item, index) in filteredItems" :key="item.name" class="item" :class="{selected: item.selected, active: active == index}" @click="selectItem(item)" :ref="'listItem' + index">${ item.name }</div>
				<div class="item" v-if="showCreateNewBranch" :class="{active: active == filteredItems.length}" :ref="'listItem' + filteredItems.length">
					<a href="#" @click="createNewBranch()">
						<div>
							<i class="octicon octicon-git-branch"></i>
							{{.i18n.Tr "repo.branch.create_branch" `${ searchTerm }` | Safe}}
						</div>
						<div class="text small">
							{{if .IsViewBranch}}
								{{.i18n.Tr "repo.branch.create_from" .BranchName}}
							{{else}}
								{{.i18n.Tr "repo.branch.create_from" (ShortSha .BranchName)}}
							{{end}}
						</div>
					</a>
					<form ref="newBranchForm" action="{{.RepoLink}}/branches/_new/{{EscapePound .BranchNameSubURL}}" method="post">
						{{.CsrfTokenHtml}}
						<input type="hidden" name="new_branch_name" v-model="searchTerm">
					</form>
				</div>
			</div>
			<div class="message" v-if="showNoResults">${ noResults }</div>
		</div>
	</div>
</div>