def test_sub_window_controls():
"""Test a sub-control."""
class Example(Window):
layout = mark("""
<window title="Test on window controls">
</window>
""")
def on_press(self):
self.pressed = 1
def on_press_a(self):
self.pressed = 2
window = start(Example)
window.pressed = 0
# Check that the control method is registered into the window object
assert "press" in window.controls
assert is_registered(window, "press", window.on_press_a)
# Check that the on_press_a method is called when firing the control
window._process_control("press", {"key": "a", "raw_key": "a"})
assert window.pressed == 2, "The control method wasn't called."
# Check that the control method is registered into the window object
assert is_registered(window, "press", window.on_press)
# Check that the on_press method is called when firing the control
window._process_control("press", {"key": "b", "raw_key": "b"})
assert window.pressed == 1, "The control method wasn't called."
def test_alias_widget_control():
"""Test aliases on a widget control."""
class Example(Window):
layout = mark("""
<window title="Test on window controls">
<button x=2 y=0 id=quit>Quit or report</button>
</window>
""")
def on_click_quit(self):
self.pressed = True
on_press_b_in_quit = on_click_quit
window = start(Example)
window.pressed = False
widget = window["quit"]
# Check that the control method is registered into the window object
assert "press" in widget.controls
assert is_registered(widget, "press", window.on_click_quit)
# Check that the on_click_quit method is called when firing the control
widget._process_control("click")
assert window.pressed, "The control method wasn't called."
window.pressed = False
# Check that the control method is registered into the window object
assert is_registered(widget, "press", window.on_press_b_in_quit)
# Check that the on_press_b method is called when firing the control
widget._process_control("press", {"key": "b", "raw_key": "b"})
assert window.pressed, "The control method wasn't called."
def test_implicit_widget_control():
"""Test the link between a control method and implicit widget control."""
class Example(Window):
"""Window showing implicit controls."""
layout = mark("""
<window title="An example for implicit controls">
<menubar>
<menu name="File">
<item id="quit">Quit this app right away</item>
</menu>
</menubar>
</window>
""")
def on_quit(self):
"""The user pressed on the 'quit' menu item."""
self.should_quit = True
window = start(Example)
window.should_quit = False
# Check that the control method is registered into the widget object
widget = window.parsed_layout.get("item").widget
assert "click" in widget.controls
assert is_registered(widget, "click", window.on_quit)
# Check that the on_quit method is called when firing the control
widget._process_control("click")
assert window.should_quit, "The control method wasn't called."
def test_alias_window_control():
"""Test aliases on a window control."""
class Example(Window):
layout = mark("""
<window title="Test on window controls">
</window>
""")
def on_press_a(self):
self.pressed = True
on_press_b = on_press_a
window = start(Example)
window.pressed = False
# Check that the control method is registered into the window object
assert "press" in window.controls
assert is_registered(window, "press", window.on_press_a)
# Check that the on_press_a method is called when firing the control
window._process_control("press", {"key": "a", "raw_key": "a"})
assert window.pressed, "The control method wasn't called."
window.pressed = False
# Check that the control method is registered into the window object
assert is_registered(window, "press", window.on_press_b)
# Check that the on_press_b method is called when firing the control
window._process_control("press", {"key": "b", "raw_key": "b"})
assert window.pressed, "The control method wasn't called."
def test_sub_widget_controls():
"""Test a sub-control."""
class Example(Window):
layout = mark("""
<window title="Test on window controls">
<button x=2 y=3 id=count>Count me</button>
</window>
""")
def on_press_count(self):
self.pressed = 1
def on_press_a_in_count(self):
self.pressed = 2
window = start(Example)
window.pressed = 0
widget = window["count"]
# Check that the control method is registered into the widget object
assert "press" in widget.controls
assert is_registered(widget, "press", window.on_press_a_in_count)
# Check that the on_press_a_count method is called when firing the control
widget._process_control("press", {"key": "a", "raw_key": "a"})
assert window.pressed == 2, "The control method wasn't called."
# Check that the control method is registered into the widget object
assert is_registered(widget, "press", window.on_press_count)
# Check that the on_press_count method is called when firing the control
widget._process_control("press", {"key": "b", "raw_key": "b"})
assert window.pressed == 1, "The control method wasn't called."
def radio():
from bui import Window, start
class TestWindow(Window):
layout = mark(DEFAULT_LAYOUT)
window = start(TestWindow)
radio = window["actions"]
return radio
def test_widget_control():
"""Test a widget control with its associated method."""
class Example(Window):
layout = mark("""
<window title="Test on widget controls">
<button x=2 y=2 id="quit">Quit the window</button>
</window>
""")
def on_click_quit(self):
self.should_quit = True
window = start(Example)
window.should_quit = False
# Check that the control method is registered into the widget object
widget = window["quit"]
assert "click" in widget.controls
assert is_registered(widget, "click", window.on_click_quit)
# Check that the on_click_quit method is called when firing the control
widget._process_control("click")
assert window.should_quit, "The control method wasn't called."
<menubar>
<menu name="File">
<item>What is it?</item>
<item>Quit</item>
</menu>
</menubar>
<button x=2 y=2>Click me!</button>
<text x=3 y=3 id=report>Report</text>
</window>
""")
def on_click_me(self):
"""When the 'Click me!' button is pressed."""
self["report"].value = "The button was clicked!"
def on_quit(self):
"""When the user press the quit menu item in the File menu."""
self.close()
# Keyboard shortcuts
def on_press_alt_f4(self):
"""When the user presses Alt + F4."""
self.close()
# Linking an alias to a method is so simple
on_press_ctrl_q = on_press_alt_f4
start(HelloBUI)
self.file_size = length
# Download the file
total = 0
async with aiofiles.open(self.file, "wb") as file:
while response:
if self.widget.downloading:
bytes = await response.content.read(1024)
if not bytes:
self.complete(total)
return
total += len(bytes)
await file.write(bytes)
self.progress = total
await self.widget.sleep(0.1)
else:
await self.widget.sleep(0.2)
def human_size(num):
for unit in ('', 'Ki', 'Mi', 'Gi', 'Ti', 'Pi', 'Ei', 'Zi'):
if abs(num) < 1024.0:
return f"{num:3.1f}{unit}B"
num /= 1024.0
return f"{num:3.1f}YiB"
start(DownloadExample)
"""
from bui import Window, start
class CheckboxExample(Window):
"""Class to show several checkboxes on the window."""
layout = mark("""
<window title="Blind User Interface - checkboxes">
<checkbox x=3 y=0 id="gif">GIF</checkbox>
<checkbox x=1 y=1 id="png">PNG</checkbox>
<checkbox x=4 y=2 id="jpg">JPEG</checkbox>
</window>
""")
def on_check_gif(self, checked):
print(f"Check GIF: {checked}")
def on_checked_jpg(self):
print("JPEG was checked.")
def on_unchecked_jpg(self):
print("JPEG was unchecked.")
def on_check_jpg(self):
print("JPEG state was changed.")
start(CheckboxExample)