Add mark action and reducer

src/content/actions/index.js

@@ -22,4 +22,10 @@ export default {
 
   // Find
   FIND_SET_KEYWORD: 'find.set.keyword',
+
+  // Mark
+  MARK_START_SET: 'mark.start.set',
+  MARK_START_JUMP: 'mark.start.jump',
+  MARK_CANCEL: 'mark.cancel',
+  MARK_SET_LOCAL: 'mark.set.local',
 };

src/content/actions/mark.js

@@ -0,0 +1,25 @@
+import actions from 'content/actions';
+
+const startSet = () => {
+  return { type: actions.MARK_START_SET };
+};
+
+const startJump = () => {
+  return { type: actions.MARK_START_JUMP };
+};
+
+const cancel = () => {
+  return { type: actions.MARK_CANCEL };
+};
+
+const setLocal = (key, y) => {
+  return {
+    type: actions.MARK_SET_LOCAL,
+    key,
+    y,
+  };
+};
+
+export {
+  startSet, startJump, cancel, setLocal,
+};

src/content/reducers/mark.js

@@ -0,0 +1,25 @@
+import actions from 'content/actions';
+
+const defaultState = {
+  set: false,
+  jump: false,
+  marks: {},
+};
+
+export default function reducer(state = defaultState, action = {}) {
+  switch (action.type) {
+  case actions.MARK_START_SET:
+    return { ...state, set: true };
+  case actions.MARK_START_JUMP:
+    return { ...state, jump: true };
+  case actions.MARK_CANCEL:
+    return { ...state, set: false, jump: false };
+  case actions.MARK_SET_LOCAL: {
+    let marks = { ...state.marks };
+    marks[action.key] = { y: action.y };
+    return { ...state, marks };
+  }
+  default:
+    return state;
+  }
+}