switcher.py

from talon.voice import Word, Context, Key, Rep, Str, press
from talon import ui

apps = {}


def switch_app(m):
    name = str(m._words[1])
    full = apps.get(name)
    if not full:
        return
    for app in ui.apps():
        if app.name == full:
            app.focus()
            break


ctx = Context('switcher')
keymap = {
    'focus {switcher.apps}': switch_app,
}
ctx.keymap(keymap)


def update_lists():
    global apps
    new = {}
    for app in ui.apps():
        words = app.name.split(' ')
        for word in words:
            if word and not word in new:
                new[word] = app.name
        new[app.name] = app.name
    if set(new.keys()) == set(apps.keys()):
        return
    ctx.set_list('apps', new.keys())
    apps = new


def ui_event(event, arg):
    if event in ('app_activate', 'app_deactivate', 'app_launch', 'app_close'):
        update_lists()


ui.register('', ui_event)
update_lists()