Feature: #63729 - API for Twitter Bootstrap modals

Description

Actions that require a users' attention must be visualized by modal windows. TWBS provides those, but extension authors or core developers must take care of its creation and handling themselves.

This API provides a basis to create modal windows with severity representation. For a better UX, if actions (buttons) are attached to the modal, one button must be a positive action. This button should get a btnClass and set as active.

Modals should be used rarely and only for confirmations. For information the TYPO3.Flashmessage API should be used. For complex content, like forms or a lot of information, please use normal pages.

Impact

API

The API provides only two public methods:

TYPO3.Modal.confirm(title, content, severity, buttons)
TYPO3.Modal.dismiss()

Modal Settings

Name	DataType	Mandatory	Description
title	string	Yes	The title displayed in the modal
content	string\|jQuery	Yes	The content displayed in the modal
severity	int		Represents the severity of a modal. Please see TYPO3.Severity. Default is `TYPO3.Severity.info`.
buttons	object[]		Actions rendered into the modal footer. If empty, the footer is not rendered. See table below.

Button Settings

Name	DataType	Mandatory	Description
text	string	Yes	The text rendered into the button.
trigger	function	Yes	Callback that's triggered on button click.
active	bool		Marks the button as active. If true, the button gets the focus.
btnClass	string		The css class for the button

Data-Attributes

It is also possible to use data-attributes to trigger a modal. e.g. on an anchor element, which prevents the default behavior.

Name	Description
data-title	the title text for the modal
data-content	the content text for the modal
data-severity	the severity for the modal, default is info (see TYPO3.Severity.*)
data-href	the target URL, default is the href attribute of the element
data-button-close-text	button text for the close/cancel button
data-button-ok-text	button text for the ok button

class="t3js-modal-trigger" marks the element as modal trigger

Examples

A basic modal without any specials can be created this way:

TYPO3.Modal.confirm('The title of the modal', 'This the body of the modal');

A modal as warning with button:

TYPO3.Modal.confirm('Warning', 'You may break the internet!', TYPO3.Severity.warning, [
	{
		text: 'Break it',
		active: true,
		trigger: function() {
			// break the net
		}
	}, {
		text: 'Abort!',
		trigger: function() {
			TYPO3.Modal.dismiss();
		}
	}
]);

A modal as warning:

TYPO3.Modal.confirm('Warning', 'You may break the internet!', TYPO3.Severity.warning);

A modal triggered on an anchor element:

<a href="delete.php" class="t3js-modal-trigger" data-title="Delete" data-content="Really delete?">delete</a>