Merge pull request #4 from github-for-unity/ui/delete-branch

Add a UI for deleting a branch

Author: shana

src/UnityExtension/Assets/Editor/GitHub.Unity/UI/BranchesView.cs

@@ -440,6 +440,23 @@ private void OnCreateGUI()
             // Create button
             if (mode == BranchesMode.Default)
             {
+                // If the current branch is selected, then do not enable the Delete button
+                var disableDelete = activeBranchNode == selectedNode;
+                EditorGUI.BeginDisabledGroup(disableDelete);
+                {
+                    if (GUILayout.Button("Delete", EditorStyles.miniButton, GUILayout.ExpandWidth(false)))
+                    {
+                        var selectedBranchName = selectedNode.Name;
+                        var dialogTitle = "Delete Branch: " + selectedBranchName;
+                        var dialogMessage = "Are you sure you want to delete the branch: " + selectedBranchName + "?";
+                        if (EditorUtility.DisplayDialog("Delete Branch?", dialogMessage, "Delete", "Cancel"))
+                        {
+                            GitClient.DeleteBranch(selectedBranchName, true).Start();
+                        }
+                    }
+                }
+                EditorGUI.EndDisabledGroup();
+
                 GUILayout.FlexibleSpace();
                 if (GUILayout.Button(CreateBranchButton, EditorStyles.miniButton, GUILayout.ExpandWidth(false)))
                 {