Multi-line text input#
The Multi-line text input is similar to the text input but designed for larger inputs, similar to the textarea field of HTML.
Usage#
import toga
textbox = toga.MultilineTextInput(id='view1')
Reference#
- class toga.widgets.multilinetextinput.MultilineTextInput(id=None, style=None, factory=None, value=None, readonly=False, placeholder=None, on_change=None, initial=None)#
A multi-line text input widget.
- Parameters:
id (str) – An identifier for this widget.
style (
Style
) – An optional style object. If no style is provided then a new one will be created for the widget.value (str) – The initial text of the widget.
readonly (bool) – Whether a user can write into the text input, defaults to False.
placeholder (str) – The placeholder text for the widget.
on_change (
callable
) – The handler to invoke when the text changes.
- MIN_HEIGHT = 100#
- MIN_WIDTH = 100#
- add(*children)#
Add the provided widgets as children of this widget.
If a node already has a different parent, it will be moved over. This does nothing if a node already is a child of this node.
Raises
ValueError
if this widget cannot have children.- Parameters:
children – The widgets to add as children of this widget.
- property app#
The App to which this widget belongs.
When setting the app for a widget, all children of this widget will be recursively assigned to the same app.
Raises
ValueError
if the widget is already associated with another app.
- property can_have_children#
Determine if the node can have children.
This does not resolve whether there actually are any children; it only confirms whether children are theoretically allowed.
- property children#
The children of this node. This always returns a list, even if the node is a leaf and cannot have children.
- Returns:
A list of the children for this widget.
- clear()#
Clears the text from the widget.
- property enabled#
Is the widget currently enabled? i.e., can the user interact with the widget?
- focus()#
Set this widget to have the current input focus.
- property id#
The node identifier. This id can be used to target styling directives.
- insert(index, child)#
Insert a widget as a child of this widget.
If the node already has a parent, ownership of the widget will be transferred.
Raises
ValueError
if this node cannot have children.- Parameters:
index – The position in the list of children where the new widget should be added.
child – The child to insert as a child of this node.
- property on_change#
The handler to invoke when the value changes.
- Returns:
The function
callable
that is called on a content change.
- property parent#
The parent of this node.
- Returns:
The parent of this node. Returns None if this node is the root node.
- property placeholder#
The placeholder text.
- Returns:
The placeholder text as a str`.
- property readonly#
Whether a user can write into the text input.
- Returns:
True if the user can only read, False if the user can read and write the text.
- refresh()#
Refresh the layout and appearance of the tree this node is contained in.
- refresh_sublayouts()#
- remove(*children)#
Remove the provided widgets as children of this node.
This does nothing if a given node is not a child of this node.
Raises
ValueError
if this node is a leaf, and cannot have children.- Parameters:
children – The child nodes to remove.
- property root#
The root of the tree containing this node.
- Returns:
The root node. Returns self if this node is the root node.
- scroll_to_bottom()#
Scroll the view to make the bottom of the text field visible.
- scroll_to_top()#
Scroll the view to make the top of the text field visible.
- property tab_index#
The position of the widget in the focus chain for the window.
- property value#
The value of the multi line text input field.
- Returns:
The text of the Widget as a
str
.
- property window#
The window to which this widget belongs.
When setting the window for a widget, all children of this widget will be recursively assigned to the same window.