Alfred Workflow JavaScript Snippets

activate.js

// Activate App by name
function run(argv) {
  const appname = argv[0];
  const app = Application(appname);
  app.activate();
}

frontapp.js

// Get frontmost app name
function run(argv) {
  const system = Application("System Events");
  const process = system.processes.whose({ frontmost: {'=': true } })[0];
  return `${process.title()}.app`;
}

iTerm.scpt

-- Set this property to true to always open in a new window
property open_in_new_window : false

-- Handlers
on new_window()
	tell application "iTerm" to create window with default profile
end new_window

on new_tab()
	tell application "iTerm" to tell the first window to create tab with default profile
end new_tab

on call_forward()
	tell application "iTerm" to activate
end call_forward

on is_running()
	application "iTerm" is running
end is_running

on has_windows()
	if not is_running() then return false
	if windows of application "iTerm" is {} then return false
	true
end has_windows

on send_text(custom_text)
	tell application "iTerm" to tell the first window to tell current session to write text custom_text
end send_text

-- Main
on alfred_script(query)
	if has_windows() then
		if open_in_new_window then
			new_window()
		else
			new_tab()
		end if
	else
		-- If iTerm is not running and we tell it to create a new window, we get two
		-- One from opening the application, and the other from the command
		if is_running() then
			new_window()
		else
			call_forward()
		end if
	end if

	-- Make sure a window exists before we continue, or the write may fail
	repeat until has_windows()
		delay 0.01
	end repeat

	send_text(query)
	call_forward()
end alfred_script

typetext.js

// Type Text into App

const sys_events = Application("System Events");

// More keycodes can be added. Keycode reference:
// https://github.com/vitorgalvao/alfred-workflows/tree/master/KeyCodes
const key_codes = {
  "→": 124,
  "←": 123,
  "↑": 126,
  "↓": 125,
  "⏎": 36,  // Return
  "⇥": 48,  // Tab
  "⌫": 51,  // Delete
  "⎋": 53   // Escape
};
const modifiers = {
  "⌘": "command down",
  "^": "control down",
  "⌥": "option down",
  "⇧": "shift down"
};


function press(hotkey) {
  const using = [];

  while (hotkey.length > 1) {
    if (modifiers[hotkey[0]] == undefined) {
      throw new Error(hotkey[0] + " is not a recognized modifier key");
    };

    using.push(modifiers[hotkey[0]]);
    hotkey = hotkey.slice(1);
  };
	
  if (key_codes[hotkey] != undefined) {
    sys_events.keyCode(key_codes[hotkey], {using: using});
  } else {
    sys_events.keystroke(hotkey.toLowerCase(), {using: using});
  };
};

function type(text) {
  for (let i=0; i < text.length; i++) {
    sys_events.keystroke(text[i]);
  };
}