Git support (#143)

src-web/components/git/BranchSelectionDialog.tsx

@@ -0,0 +1,43 @@
+import { useState } from 'react';
+import { Button } from '../core/Button';
+import { Select } from '../core/Select';
+import { HStack, VStack } from '../core/Stacks';
+
+interface Props {
+  branches: string[];
+  onCancel: () => void;
+  onSelect: (branch: string) => void;
+  selectText: string;
+}
+
+export function BranchSelectionDialog({ branches, onCancel, onSelect, selectText }: Props) {
+  const [branch, setBranch] = useState<string>('__NONE__');
+  return (
+    <VStack
+      className="mb-4"
+      as="form"
+      space={4}
+      onSubmit={(e) => {
+        e.preventDefault();
+        onSelect(branch);
+      }}
+    >
+      <Select
+        name="branch"
+        hideLabel
+        label="Branch"
+        value={branch}
+        options={branches.map((b) => ({ label: b, value: b }))}
+        onChange={setBranch}
+      />
+      <HStack space={2} justifyContent="end">
+        <Button onClick={onCancel} variant="border" color="secondary">
+          Cancel
+        </Button>
+        <Button type="submit" color="primary">
+          {selectText}
+        </Button>
+      </HStack>
+    </VStack>
+  );
+}