DiscussionComposer component displays the composer content for starting
a new discussion. It adds a text field as a header control so the user can
enter the title of their discussion. It also overrides the
willExit actions to account for the title.
The attributes passed into the component.
The root DOM element for the component.
Whether or not the component is loading.
Class component state that is persisted between redraws.
Updating this will not automatically trigger a redraw, unlike other frameworks.
This is different to Vnode state, which is always an instance of your class component.
undefined by default.
The value of the title input.
Returns a jQuery object for this component's element. If you pass in a selector string, this method will return a jQuery object, using the current element as its buffer.
For example, calling
component.$('li') will return a jQuery object
containing all of the
li elements inside the DOM element of this
the jQuery object for the DOM node
Get the data to submit to the server when the discussion is saved.
Check if there is any unsaved data.
Build an item list for the composer's header.
Handle the title input's keydown event. When the return key is pressed, move the focus to the start of the text editor.
Handle the submit event of the text editor.
Initialize the component's attrs.
This can be used to assign default values for missing, optional attrs.
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