textual-inputs is a collection of input widgets for the Textual TUI framework
Project description
Textual Inputs 🔡
Textual Inputs is a collection of input widgets for the Textual TUI framework.
⚠️ This library is experimental and its interfaces will change. While Textual Inputs is pre-alpha please pin your projects to the minor release number to avoid breaking changes. For example: textual-inputs=0.2.*
News
v0.2.6
- Support for text overflow in TextInput
- Patch for crash when IntegerInput is empty and backspace is pressed.
Quick Start
Installation
python -m pip install textual-inputs~=0.2.6
To use Textual Inputs
from textual_inputs import TextInput, IntegerInput
Checkout the examples for reference.
git clone https://github.com/sirfuzzalot/textual-inputs.git
cd textual-inputs
python3 -m venv venv
source venv/bin/activate
python -m pip install -e .
python examples/simple_form.py
Widgets
TextInput 🔡
- value - string
- one line of text with overflow support
- placeholder and title support
- password mode to hide input
- syntax mode to highlight code
- support for Unicode characters
- controls: arrow right/left, home, end, delete, backspace/ctrl+h, escape
- emits - InputOnChange, InputOnFocus messages
IntegerInput 🔢
- value - integer or None
- placeholder and title support
- type a number or arrow up/down to increment/decrement the integer.
- controls: arrow right/left, home, end, delete, backspace/ctrl+h, escape
- emits - InputOnChange, InputOnFocus messages
Features
One-Line Syntax Highlighting
Textual Inputs takes advantage of rich
's built-in Syntax feature. To
add highlighting to your input text set the syntax
argument to a language
supported by pygments
. Currently this is set to the default theme.
⚠️ THIS FEATURE IS LIMITED TO ONE LINE OF TEXT
TextInput(
name="code",
placeholder="enter some python code...",
title="Code",
syntax="python",
)
Event Handlers
Textual Inputs helps make the event handler process easier by providing the following convenient properties for inputs.
- on_change_handler_name
- on_focus_handler_name
email = TextInput(name="email", title="Email")
email.on_change_handler_name = "handle_email_on_change"
email.on_focus_handler_name = "handle_email_on_focus"
Under the hood setting this attribute this will generate a Message
class
with the appropriate name for Textual to send it to the handler name provided.
You'll then want add the handler to the input's parent or the App instance.
If you opt not to customize these handlers, their values will be the
default handle_input_on_change
and handle_input_on_focus
. See
examples/simple_form.py
for a working example.
API Reference
Textual Inputs has two widgets, here are their attributes.
class TextInput(Widget):
"""
A simple text input widget.
Args:
name (Optional[str]): The unique name of the widget. If None, the
widget will be automatically named.
value (str, optional): Defaults to "". The starting text value.
placeholder (str, optional): Defaults to "". Text that appears
in the widget when value is "" and the widget is not focused.
title (str, optional): Defaults to "". A title on the top left
of the widget's border.
password (bool, optional): Defaults to False. Hides the text
input, replacing it with bullets.
syntax (Optional[str]): the name of the language for syntax highlighting.
Attributes:
value (str): the value of the text field
placeholder (str): The placeholder message.
title (str): The displayed title of the widget.
has_password (bool): True if the text field masks the input.
syntax (Optional[str]): the name of the language for syntax highlighting.
has_focus (bool): True if the widget is focused.
cursor (Tuple[str, Style]): The character used for the cursor
and a rich Style object defining its appearance.
on_change_handler_name (str): name of handler function to be
called when an on change event occurs. Defaults to
handle_input_on_change.
on_focus_handler_name (name): name of handler function to be
called when an on focus event occurs. Defaults to
handle_input_on_focus.
Events:
InputOnChange: Emitted when the contents of the input changes.
InputOnFocus: Emitted when the widget becomes focused.
Examples:
.. code-block:: python
from textual_inputs import TextInput
email_input = TextInput(
name="email",
placeholder="enter your email address...",
title="Email",
)
"""
class IntegerInput(Widget):
"""
A simple integer input widget.
Args:
name (Optional[str]): The unique name of the widget. If None, the
widget will be automatically named.
value (Optional[int]): The starting integer value.
placeholder (Union[str, int, optional): Defaults to "". Text that
appears in the widget when value is "" and the widget is not focused.
title (str, optional): Defaults to "". A title on the top left
of the widget's border.
Attributes:
value (Union[int, None]): the value of the input field
placeholder (str): The placeholder message.
title (str): The displayed title of the widget.
has_focus (bool): True if the widget is focused.
cursor (Tuple[str, Style]): The character used for the cursor
and a rich Style object defining its appearance.
on_change_handler_name (str): name of handler function to be
called when an on change event occurs. Defaults to
handle_input_on_change.
on_focus_handler_name (name): name of handler function to be
called when an on focus event occurs. Defaults to
handle_input_on_focus.
Events:
InputOnChange: Emitted when the contents of the input changes.
InputOnFocus: Emitted when the widget becomes focused.
Examples:
.. code-block:: python
from textual_inputs import IntegerInput
age_input = IntegerInput(
name="age",
placeholder="enter your age...",
title="Age",
)
"""
Contributing
See the Contributing Guide.
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