1 files changed, 77 insertions, 0 deletions
diff --git a/app/assets/javascripts/protected_branches/protected_branch_dropdown.js.es6 b/app/assets/javascripts/protected_branches/protected_branch_dropdown.js.es6
new file mode 100644
index 00000000000..e3f226e9a2a
--- /dev/null
+++ b/app/assets/javascripts/protected_branches/protected_branch_dropdown.js.es6
@@ -0,0 +1,77 @@
+/* eslint-disable */
+class ProtectedBranchDropdown {
+  constructor(options) {
+    this.onSelect = options.onSelect;
+    this.$dropdown = options.$dropdown;
+    this.$dropdownContainer = this.$dropdown.parent();
+    this.$dropdownFooter = this.$dropdownContainer.find('.dropdown-footer');
+    this.$protectedBranch = this.$dropdownContainer.find('.create-new-protected-branch');
+
+    this.buildDropdown();
+    this.bindEvents();
+
+    // Hide footer
+    this.$dropdownFooter.addClass('hidden');
+  }
+
+  buildDropdown() {
+    this.$dropdown.glDropdown({
+      data: this.getProtectedBranches.bind(this),
+      filterable: true,
+      remote: false,
+      search: {
+        fields: ['title']
+      },
+      selectable: true,
+      toggleLabel(selected) {
+        return (selected && 'id' in selected) ? selected.title : 'Protected Branch';
+      },
+      fieldName: 'protected_branch[name]',
+      text(protectedBranch) {
+        return _.escape(protectedBranch.title);
+      },
+      id(protectedBranch) {
+        return _.escape(protectedBranch.id);
+      },
+      onFilter: this.toggleCreateNewButton.bind(this),
+      clicked: (item, $el, e) => {
+        e.preventDefault();
+        this.onSelect();
+      }
+    });
+  }
+
+  bindEvents() {
+    this.$protectedBranch.on('click', this.onClickCreateWildcard.bind(this));
+  }
+
+  onClickCreateWildcard() {
+    // Refresh the dropdown's data, which ends up calling `getProtectedBranches`
+    this.$dropdown.data('glDropdown').remote.execute();
+    this.$dropdown.data('glDropdown').selectRowAtIndex(0);
+  }
+
+  getProtectedBranches(term, callback) {
+    if (this.selectedBranch) {
+      callback(gon.open_branches.concat(this.selectedBranch));
+    } else {
+      callback(gon.open_branches);
+    }
+  }
+
+  toggleCreateNewButton(branchName) {
+    this.selectedBranch = {
+      title: branchName,
+      id: branchName,
+      text: branchName
+    };
+
+    if (branchName) {
+      this.$dropdownContainer
+        .find('.create-new-protected-branch code')
+        .text(branchName);
+    }
+
+    this.$dropdownFooter.toggleClass('hidden', !branchName);
+  }
+}