1 files changed, 35 insertions, 0 deletions
diff --git a/src/content/reducers/mark.ts b/src/content/reducers/mark.ts
new file mode 100644
index 0000000..7409938
--- /dev/null
+++ b/src/content/reducers/mark.ts
@@ -0,0 +1,35 @@
+import Mark from '../Mark';
+import * as actions from '../actions';
+
+export interface State {
+  setMode: boolean;
+  jumpMode: boolean;
+  marks: { [key: string]: Mark };
+}
+
+const defaultState: State = {
+  setMode: false,
+  jumpMode: false,
+  marks: {},
+};
+
+export default function reducer(
+  state: State = defaultState,
+  action: actions.MarkAction,
+): State {
+  switch (action.type) {
+  case actions.MARK_START_SET:
+    return { ...state, setMode: true };
+  case actions.MARK_START_JUMP:
+    return { ...state, jumpMode: true };
+  case actions.MARK_CANCEL:
+    return { ...state, setMode: false, jumpMode: false };
+  case actions.MARK_SET_LOCAL: {
+    let marks = { ...state.marks };
+    marks[action.key] = { x: action.x, y: action.y };
+    return { ...state, setMode: false, marks };
+  }
+  default:
+    return state;
+  }
+}