#!/usr/bin/env python
"""
Example of the 'transparency' attribute of `Window' when used in a Float.
"""
from prompt_toolkit.application import Application
from prompt_toolkit.formatted_text import HTML
from prompt_toolkit.key_binding import KeyBindings
from prompt_toolkit.layout.containers import Float, FloatContainer, Window
from prompt_toolkit.layout.controls import FormattedTextControl
from prompt_toolkit.layout.layout import Layout
from prompt_toolkit.widgets import Frame

LIPSUM = " ".join(
    (
        """Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Maecenas quis interdum enim. Nam viverra, mauris et blandit malesuada, ante est
bibendum mauris, ac dignissim dui tellus quis ligula. Aenean condimentum leo at
dignissim placerat. In vel dictum ex, vulputate accumsan mi. Donec ut quam
placerat massa tempor elementum. Sed tristique mauris ac suscipit euismod. Ut
tempus vehicula augue non venenatis. Mauris aliquam velit turpis, nec congue
risus aliquam sit amet. Pellentesque blandit scelerisque felis, faucibus
consequat ante. Curabitur tempor tortor a imperdiet tincidunt. Nam sed justo
sit amet odio bibendum congue. Quisque varius ligula nec ligula gravida, sed
convallis augue faucibus. Nunc ornare pharetra bibendum. Praesent blandit ex
quis sodales maximus. """
        * 100
    ).split()
)


# 1. The layout
left_text = HTML("<reverse>transparent=False</reverse>\n")
right_text = HTML("<reverse>transparent=True</reverse>")
quit_text = "Press 'q' to quit."


body = FloatContainer(
    content=Window(FormattedTextControl(LIPSUM), wrap_lines=True),
    floats=[
        # Important note: Wrapping the floating objects in a 'Frame' is
        #                 only required for drawing the border around the
        #                 floating text. We do it here to make the layout more
        #                 obvious.
        # Left float.
        Float(
            Frame(Window(FormattedTextControl(left_text), width=20, height=4)),
            transparent=False,
            left=0,
        ),
        # Right float.
        Float(
            Frame(Window(FormattedTextControl(right_text), width=20, height=4)),
            transparent=True,
            right=0,
        ),
        # Quit text.
        Float(
            Frame(
                Window(FormattedTextControl(quit_text), width=18, height=1),
                style="bg:#ff44ff #ffffff",
            ),
            top=1,
        ),
    ],
)


# 2. Key bindings
kb = KeyBindings()


@kb.add("q")
def _(event):
    "Quit application."
    event.app.exit()


# 3. The `Application`
application = Application(layout=Layout(body), key_bindings=kb, full_screen=True)


def run():
    application.run()


if __name__ == "__main__":
    run()