Construct a notebook widget.
Private
_cellPrivate
_cellPrivate
_editorPrivate
_idlePrivate
_mimetypePrivate
_mimetypePrivate
_modelPrivate
_modelPrivate
_notebookPrivate
_notebookPrivate
_renderingPrivate
_renderingProtected
_viewProtected
cellsReadonly
contentThe cell factory used by the widget.
Protected
jumpedA signal that emits the index when the virtual scrollbar jumps to an item.
Readonly
kernelReadonly
nodeGet the DOM node owned by the widget.
Protected
rendererThe renderer for this windowed list. Set at instantiation.
Readonly
rendermimeThe Rendermime instance used by the widget.
Readonly
translatorTranslator to be used by cell renderers
Static
Readonly
DEFAULT_Default widget size
Get the mimetype for code cells.
The dataset for the widget's DOM node.
A configuration object for cell editor settings.
Get the method for hiding the widget.
Set the method for hiding the widget.
Get the id of the widget's DOM node.
Set the id of the widget's DOM node.
Test whether the widget's node is attached to the DOM.
Test whether the widget has been disposed.
Test whether the widget is explicitly hidden.
Whether the parent is hidden or not.
This should be set externally if a container is hidden to stop updating the widget size when hidden.
Test whether the widget is visible.
A widget is visible when it is attached to the DOM, is not explicitly hidden, and has no explicitly hidden ancestors.
Widget layout
The model for the widget.
A configuration object for notebook settings.
The outer container of the windowed list.
Get the parent of the widget.
Set the parent of the widget.
Children are typically added to a widget by using a layout, which means user code will not normally set the parent widget directly.
The widget will be automatically removed from its old parent.
This is a no-op if there is no effective parent change.
Flag to enable virtual scrollbar.
The title object for the widget.
The title object is used by some container widgets when displaying the widget alongside some title, such as a tab panel or side bar.
Since not all widgets will use the title, it is created on demand.
The owner
property of the title is set to this widget.
Protected
viewViewport
A read-only sequence of the widgets in the notebook.
Private
_createCreate a code cell widget from a code cell model.
Private
_createCreate a markdown cell widget from a markdown cell model.
Private
_createCreate a raw cell widget from a raw cell model.
Private
_insertCreate a cell widget and insert into the notebook.
Private
_onCallback when a cell collapsed status changes.
Cell changed
New collapsed status
Private
_onCallback when a cell viewport status changes.
Cell changed
Protected
_onHandle a change cells event.
Private
_onEnsure to load in the DOM a cell requesting an user input
Cell requesting an input
Private
_onHandle a new model on the widget.
Private
_removePrivate
_runPrivate
_schedulePrivate
_updatePrivate
_updatePrivate
_updatePrivate
_updatePrivate
_updatePost an 'activate-request'
message to the widget.
This is a simple convenience method for posting the message.
Add a class name to the widget's DOM node.
The class name to add to the node.
If the class name is already added to the node, this is a no-op.
The class name must not contain whitespace.
Protected
addCreate an iterator over the widget's children.
A new iterator over the children of the widget.
The widget must have a populated layout in order to have children.
If a layout is not installed, the returned iterator will be empty.
Send a 'close-request'
message to the widget.
This is a simple convenience method for sending the message.
Test whether a widget is a descendant of this widget.
The descendant widget of interest.
true
if the widget is a descendant, false
otherwise.
Post a 'fit-request'
message to the widget.
This is a simple convenience method for posting the message.
Callback on event.
Event
Move cells preserving widget view state.
This is required because at the model level a move is a deletion followed by an insertion. Hence the view state is not preserved.
The index of the cell to move
The new index of the cell
Number of cells to move
Protected
notifyInvoke the message processing routine of the widget's layout.
The message to dispatch to the layout.
This is a no-op if the widget does not have a layout.
This will not typically be called directly by user code.
Protected
onA message handler invoked on an 'activate-request'
message.
The default implementation of this handler is a no-op.
Protected
onProtected
onA message handler invoked on an 'after-detach'
message.
The default implementation of this handler is a no-op.
Protected
onA message handler invoked on an 'after-hide'
message.
The default implementation of this handler is a no-op.
Protected
onA message handler invoked on an 'after-show'
message.
The default implementation of this handler is a no-op.
Protected
onA message handler invoked on a 'before-attach'
message.
The default implementation of this handler is a no-op.
Protected
onProtected
onA message handler invoked on a 'before-hide'
message.
The default implementation of this handler is a no-op.
Protected
onA message handler invoked on a 'before-show'
message.
The default implementation of this handler is a no-op.
Protected
onHandle a cell being inserted.
The default implementation is a no-op
Protected
onHandle a cell being removed.
The default implementation is a no-op
Protected
onA message handler invoked on a 'child-added'
message.
The default implementation of this handler is a no-op.
Protected
onA message handler invoked on a 'child-removed'
message.
The default implementation of this handler is a no-op.
Protected
onA message handler invoked on a 'close-request'
message.
The default implementation unparents or detaches the widget.
Protected
onA message handler invoked on a 'fit-request'
message.
The default implementation of this handler is a no-op.
Protected
onHandle changes to the notebook model metadata.
The default implementation updates the mimetypes of the code cells
when the language_info
metadata changes.
Protected
onHandle a new model.
This method is called after the model change has been handled
internally and before the modelChanged
signal is emitted.
The default implementation is a no-op.
Protected
onHandle changes to the notebook model content.
The default implementation emits the modelContentChanged
signal.
Protected
onProtected
onCallback on scroll event
Scroll event
Protected
onCallback on view model change
Windowed list model
Change
Protected
onA message handler invoked on an 'update-request'
message.
The default implementation of this handler is a no-op.
Remove a class name from the widget's DOM node.
The class name to remove from the node.
If the class name is not yet added to the node, this is a no-op.
The class name must not contain whitespace.
Protected
removeForce rendering the cell outputs of a given cell if it is still a placeholder.
The goal of this method is to allow search on cell outputs (that is based on DOM tree introspection).
The cell index
Scroll to the specified item.
By default, the list will scroll as little as possible to ensure the item is fully visible (auto
).
You can control the alignment of the item though by specifying a second alignment parameter.
Acceptable values are:
auto - Automatically align with the top or bottom minimising the amount scrolled,
If alignPreference
is given, follow such preferred alignment.
If item is smaller than the viewport and fully visible, do not scroll at all.
smart - If the item is significantly visible, don't scroll at all (regardless of whether it fits in the viewport).
If the item is less than one viewport away, scroll so that it becomes fully visible (following the auto
heuristics).
If the item is more than one viewport away, scroll so that it is centered within the viewport (center
if smaller than viewport, top-center
otherwise).
center - Align the middle of the item with the middle of the viewport (it only works well for items smaller than the viewport).
top-center - Align the top of the item with the middle of the viewport (works well for items larger than the viewport).
end - Align the bottom of the item to the bottom of the list.
start - Align the top of item to the top of the list.
Item index to scroll to
Optional
align: ScrollToAlignType of alignment
Optional
margin: numberIn 'smart' mode the viewport proportion to add
Optional
alignPreference: BaseScrollToAlignmentAllows to override the alignment of item when the auto
heuristic decides that the item needs to be scrolled into view.
Show or hide the widget according to a boolean value.
true
to hide the widget, or false
to show it.
This is a convenience method for hide()
and show()
.
Test whether the given widget flag is set.
This will not typically be called directly by user code.
Toggle a class name on the widget's DOM node.
The class name to toggle on the node.
Optional
force: booleanWhether to force add the class (true
) or force
remove the class (false
). If not provided, the presence of
the class will be toggled from its current state.
true
if the class is now present, false
otherwise.
The class name must not contain whitespace.
Post an 'update-request'
message to the widget.
This is a simple convenience method for posting the message.
A widget which renders static non-interactive notebooks.
Notes
The widget model must be set separately and can be changed at any time. Consumers of the widget must account for a
null
model, and may want to listen to themodelChanged
signal.