From a28f6f916d77baf87e3c023abbd6494e009a8d12 Mon Sep 17 00:00:00 2001
From: Shin'ya Ueoka <ueokande@i-beam.org>
Date: Wed, 11 Jul 2018 21:32:28 +0900
Subject: [PATCH] Complete console commands

---
 src/background/shared/completions/index.js | 41 +++++++++++++---------
 src/shared/commands/docs.js                | 11 ++++++
 2 files changed, 36 insertions(+), 16 deletions(-)
 create mode 100644 src/shared/commands/docs.js

diff --git a/src/background/shared/completions/index.js b/src/background/shared/completions/index.js
index d5875fe..22713e7 100644
--- a/src/background/shared/completions/index.js
+++ b/src/background/shared/completions/index.js
@@ -1,7 +1,19 @@
+import commandDocs from 'shared/commands/docs';
 import * as tabs from './tabs';
 import * as histories from './histories';
 import * as bookmarks from './bookmarks';
 
+const completeCommands = (typing) => {
+  let keys = Object.keys(commandDocs);
+  return keys
+    .filter(name => name.startsWith(typing))
+    .map(name => ({
+      caption: name,
+      content: name,
+      url: commandDocs[name],
+    }));
+};
+
 const getSearchCompletions = (command, keywords, searchConfig) => {
   let engineNames = Object.keys(searchConfig.engines);
   let engineItems = engineNames.filter(name => name.startsWith(keywords))
@@ -74,20 +86,21 @@ const getBufferCompletions = async(command, keywords, excludePinned) => {
   ];
 };
 
-const getCompletions = (line, settings) => {
-  let typedWords = line.trim().split(/ +/);
-  let typing = '';
-  if (!line.endsWith(' ')) {
-    typing = typedWords.pop();
-  }
-
-  if (typedWords.length === 0) {
-    return Promise.resolve([]);
+const complete = (line, settings) => {
+  let trimmed = line.trimStart();
+  let words = trimmed.split(/ +/);
+  let name = words[0];
+  if (words.length === 1) {
+    return Promise.resolve([
+      {
+        name: 'Console Command',
+        items: completeCommands(name),
+      }
+    ]);
   }
-  let name = typedWords.shift();
-  let keywords = typedWords.concat(typing).join(' ');
+  let keywords = trimmed.slice(name.length).trimStart();
 
-  switch (name) {
+  switch (words[0]) {
   case 'o':
   case 'open':
   case 't':
@@ -112,8 +125,4 @@ const getCompletions = (line, settings) => {
   return Promise.resolve([]);
 };
 
-const complete = (line, settings) => {
-  return getCompletions(line, settings);
-};
-
 export { complete };
diff --git a/src/shared/commands/docs.js b/src/shared/commands/docs.js
new file mode 100644
index 0000000..c73eb71
--- /dev/null
+++ b/src/shared/commands/docs.js
@@ -0,0 +1,11 @@
+export default {
+  set: 'Set a value of the property',
+  open: 'Open a URL or search by keywords in current tab',
+  tabopen: 'Open a URL or search by keywords in new tab',
+  winopen: 'Open a URL or search by keywords in new window',
+  buffer: 'Sekect tabs by matched keywords',
+  bdelete: 'Close a certain tab matched by keywords',
+  bdeletes: 'Close all tabs matched by keywords',
+  quit: 'Close the current tab',
+  quitall: 'Close all tabs',
+};