Button callback

[AndreyOrb]

Currently, I have this line of code:
toast(title=mail_subject, body=mail_body_first_line, on_click=self.open_email)

I would like to add more functionality by adding buttons.

buttons = [
    {'activationType': 'background', 'arguments': 'Lalala', 'content': 'Read summary'}
]

toast(title="Subject", body=mail_body_first_line, on_click=self.open_email, buttons=buttons)

However, there is no documented example of how to run a function when a button is pressed.
Any help will be highly appreciated!

[AndreyOrb]

Ok, I figured it out.
The on_click method gets called if the activationType='protocol' and arguments starts with 'http:"

Here's my solution to handle both default click and the button click:

def on_click_action(event):
    # print(event)

    event_args = event.get('arguments', 'http:')[5:]

    action, _, query = event_args.partition('?')
    params = {}
    if query:
        for pair in query.split('&'):
            key, _, value = pair.partition('=')
            params[key] = value

    # print(f'Action: {action}')
    # print(f'Parameters: {params}')

    if action == 'read_summary':
        self.read_summary(params)
    else:
        self.open_email(params)


buttons = [
    {'activationType': 'protocol', 'arguments': 'http:read_summary?email_id=123', 'content': 'Read summary'}
]

toast(title="Subject", body=mail_body_first_line, on_click=on_click_action, buttons=buttons)