Use single index on completions of the console

src/console/components/console/completion.jsx

@@ -27,19 +27,17 @@ const CompletionItem = (props) => {
 class CompletionComponent extends Component {
   render() {
     let eles = [];
+    let index = 0;
     for (let i = 0; i < this.props.completions.length; ++i) {
       let group = this.props.completions[i];
       eles.push(<CompletionTitle title={ group.name }/>);
-      for (let j = 0; j < group.items.length; ++j) {
+      for (let j = 0; j < group.items.length; ++j, ++index) {
         let item = group.items[j];
-        let selected =
-          i === this.props.groupSelection &&
-          j === this.props.itemSelection;
         eles.push(<CompletionItem
           icon={item.icon}
           caption={item.caption}
           url={item.url}
-          highlight={selected}
+          highlight={index === this.props.select}
         / >);
       }
     }

src/console/reducers/index.js

@@ -6,52 +6,42 @@ const defaultState = {
   consoleText: '',
   completionSource: '',
   completions: [],
-  groupSelection: -1,
+  select: -1,
-  itemSelection: -1,
 };
 
 const nextSelection = (state) => {
   if (state.completions.length === 0) {
-    return [-1, -1];
+    return -1;
   }
-  if (state.groupSelection < 0) {
+  if (state.select < 0) {
-    return [0, 0];
+    return 0;
   }
 
-  let group = state.completions[state.groupSelection];
+  let length = state.completions
-  if (state.groupSelection + 1 >= state.completions.length &&
+    .map(g => g.items.length)
-    state.itemSelection + 1 >= group.items.length) {
+    .reduce((x, y) => x + y);
-    return [-1, -1];
+  if (state.select + 1 < length) {
+    return state.select + 1;
   }
-  if (state.itemSelection + 1 >= group.items.length) {
+  return -1;
-    return [state.groupSelection + 1, 0];
-  }
-  return [state.groupSelection, state.itemSelection + 1];
 };
 
 const prevSelection = (state) => {
-  if (state.groupSelection < 0) {
+  let length = state.completions
-    return [
+    .map(g => g.items.length)
-      state.completions.length - 1,
+    .reduce((x, y) => x + y);
-      state.completions[state.completions.length - 1].items.length - 1
+  if (state.select < 0) {
-    ];
+    return length - 1;
   }
-  if (state.groupSelection === 0 && state.itemSelection === 0) {
+  return state.select - 1;
-    return [-1, -1];
-  } else if (state.itemSelection === 0) {
-    return [
-      state.groupSelection - 1,
-      state.completions[state.groupSelection - 1].items.length - 1
-    ];
-  }
-  return [state.groupSelection, state.itemSelection - 1];
 };
 
-const nextConsoleText = (completions, group, item, defaults) => {
+const nextConsoleText = (completions, select, defaults) => {
-  if (group < 0 || item < 0) {
+  if (select < 0) {
     return defaults;
   }
-  return completions[group].items[item].content;
+  let items = completions.map(g => g.items).reduce((g1, g2) => g1.concat(g2));
+  return items[select].content;
 };
 
 // eslint-disable-next-line max-lines-per-function
@@ -90,25 +80,20 @@ export default function reducer(state = defaultState, action = {}) {
     return { ...state,
       completions: action.completions,
       completionSource: action.completionSource,
-      groupSelection: -1,
+      select: -1 };
-      itemSelection: -1, };
   case actions.CONSOLE_COMPLETION_NEXT: {
-    let next = nextSelection(state);
+    let select = nextSelection(state);
     return { ...state,
-      groupSelection: next[0],
+      select: select,
-      itemSelection: next[1],
       consoleText: nextConsoleText(
-        state.completions, next[0], next[1],
+        state.completions, select, state.completionSource) };
-        state.completionSource), };
   }
   case actions.CONSOLE_COMPLETION_PREV: {
-    let next = prevSelection(state);
+    let select = prevSelection(state);
     return { ...state,
-      groupSelection: next[0],
+      select: select,
-      itemSelection: next[1],
       consoleText: nextConsoleText(
-        state.completions, next[0], next[1],
+        state.completions, select, state.completionSource) };
-        state.completionSource), };
   }
   default:
     return state;

test/console/reducers/console.test.js

@@ -8,8 +8,7 @@ describe("console reducer", () => {
     expect(state).to.have.property('messageText', '');
     expect(state).to.have.property('consoleText', '');
     expect(state).to.have.deep.property('completions', []);
-    expect(state).to.have.property('groupSelection', -1);
+    expect(state).to.have.property('select', -1);
-    expect(state).to.have.property('itemSelection', -1);
   });
 
   it('return next state for CONSOLE_HIDE', () => {
@@ -60,8 +59,7 @@ describe("console reducer", () => {
 
   it ('return next state for CONSOLE_SET_COMPLETIONS', () => {
     let state = {
-      groupSelection: 0,
+      select: 0,
-      itemSelection: 0,
       completions: [],
     }
     let action = {
@@ -76,15 +74,13 @@ describe("console reducer", () => {
     }
     state = reducer(state, action);
     expect(state).to.have.property('completions', action.completions);
-    expect(state).to.have.property('groupSelection', -1);
+    expect(state).to.have.property('select', -1);
-    expect(state).to.have.property('itemSelection', -1);
   });
 
   it ('return next state for CONSOLE_COMPLETION_NEXT', () => {
     let action = { type: actions.CONSOLE_COMPLETION_NEXT };
     let state = {
-      groupSelection: -1,
+      select: -1,
-      itemSelection: -1,
       completions: [{
         name: 'Apple',
         items: [1, 2]
@@ -95,24 +91,22 @@ describe("console reducer", () => {
     };
 
     state = reducer(state, action);
-    expect(state).to.have.property('groupSelection', 0);
+    expect(state).to.have.property('select', 0);
-    expect(state).to.have.property('itemSelection', 0);
 
     state = reducer(state, action);
-    expect(state).to.have.property('groupSelection', 0);
+    expect(state).to.have.property('select', 1);
-    expect(state).to.have.property('itemSelection', 1);
 
     state = reducer(state, action);
+    expect(state).to.have.property('select', 2);
+
     state = reducer(state, action);
-    expect(state).to.have.property('groupSelection', -1);
+    expect(state).to.have.property('select', -1);
-    expect(state).to.have.property('itemSelection', -1);
   });
 
   it ('return next state for CONSOLE_COMPLETION_PREV', () => {
     let action = { type: actions.CONSOLE_COMPLETION_PREV };
     let state = {
-      groupSelection: -1,
+      select: -1,
-      itemSelection: -1,
       completions: [{
         name: 'Apple',
         items: [1, 2]
@@ -123,17 +117,15 @@ describe("console reducer", () => {
     };
 
     state = reducer(state, action);
-    expect(state).to.have.property('groupSelection', 1);
+    expect(state).to.have.property('select', 2);
-    expect(state).to.have.property('itemSelection', 0);
 
     state = reducer(state, action);
-    expect(state).to.have.property('groupSelection', 0);
+    expect(state).to.have.property('select', 1);
-    expect(state).to.have.property('itemSelection', 1);
 
     state = reducer(state, action);
+    expect(state).to.have.property('select', 0);
+
     state = reducer(state, action);
-    expect(state).to.have.property('groupSelection', -1);
+    expect(state).to.have.property('select', -1);
-    expect(state).to.have.property('itemSelection', -1);
   });
-
 });