move commands to background action

src/background/actions/command.js

@@ -0,0 +1,62 @@
+import * as tabs from 'background/tabs';
+import * as parsers from 'shared/commands/parsers';
+
+const openCommand = (url) => {
+  return browser.tabs.query({
+    active: true, currentWindow: true
+  }).then((gotTabs) => {
+    if (gotTabs.length > 0) {
+      return browser.tabs.update(gotTabs[0].id, { url: url });
+    }
+  });
+};
+
+const tabopenCommand = (url) => {
+  return browser.tabs.create({ url: url });
+};
+
+const winopenCommand = (url) => {
+  return browser.windows.create({ url });
+};
+
+const bufferCommand = (keywords) => {
+  if (keywords.length === 0) {
+    return Promise.resolve([]);
+  }
+  let keywordsStr = keywords.join(' ');
+  return browser.tabs.query({
+    active: true, currentWindow: true
+  }).then((gotTabs) => {
+    if (gotTabs.length > 0) {
+      if (isNaN(keywordsStr)) {
+        return tabs.selectByKeyword(gotTabs[0], keywordsStr);
+      }
+      let index = parseInt(keywordsStr, 10) - 1;
+      return tabs.selectAt(index);
+    }
+  });
+};
+
+const exec = (line, settings) => {
+  let [name, args] = parsers.parseCommandLine(line);
+
+  switch (name) {
+  case 'o':
+  case 'open':
+    return openCommand(parsers.normalizeUrl(args, settings.search));
+  case 't':
+  case 'tabopen':
+    return tabopenCommand(parsers.normalizeUrl(args, settings.search));
+  case 'w':
+  case 'winopen':
+    return winopenCommand(parsers.normalizeUrl(args, settings.search));
+  case 'b':
+  case 'buffer':
+    return bufferCommand(args);
+  case '':
+    return Promise.resolve();
+  }
+  throw new Error(name + ' command is not defined');
+};
+
+export { exec };