Members

static, constant $

utils/dom.js, line 829

Finds a single DOM element matching selector within the optional context of another DOM element (defaulting to document).

static, constant $$

utils/dom.js, line 849

Finds a all DOM elements matching selector within the optional context of another DOM element (defaulting to document).

Methods

static addClass(element, classToAdd) → {Element}

utils/dom.js, line 257

Add a class name to an element.

Parameters:

Name	Type	Description
element	Element	Element to add class name to.
classToAdd	string	Class name to add.

Returns:

Element -

The DOM element with the added class name.

static appendContent(el, content) → {Element}

utils/dom.js, line 735

Normalizes and appends content to an element.

Parameters:

Name	Type	Description
el	Element	Element to append normalized content to.
content	module:dom~ContentDescriptor	A content descriptor value.

Returns:

Element -

The element with appended normalized content.

static blockTextSelection()

utils/dom.js, line 470

Attempt to block the ability to select text.

static createEl(tagNameopt, propertiesopt, attributesopt, content) → {Element}

utils/dom.js, line 149

Creates an element and applies properties, attributes, and inserts content.

Parameters:

Name	Type	Attributes	Default	Description
tagName	string	<optional>	'div'	Name of tag to be created.
properties	Object	<optional>	{}	Element properties to be applied.
attributes	Object	<optional>	{}	Element attributes to be applied.
content	module:dom~ContentDescriptor			A content descriptor object.

Returns:

Element -

The element that was created.

static emptyEl(el) → {Element}

utils/dom.js, line 656

Empties the contents of an element.

Parameters:

Name	Type	Description
el	Element	The element to empty children from

Returns:

Element -

The element with no children

static findPosition(el) → {module:dom~Position}

utils/dom.js, line 553

Get the position of an element in the DOM.

Uses getBoundingClientRect technique from John Resig.

Parameters:

Name	Type	Description
el	Element	Element from which to get offset.

Returns:

module:dom~Position -

The position of the element that was passed in.

See:

• http://ejohn.org/blog/getboundingclientrect-is-awesome/

static getAttribute(el, attribute) → {string}

utils/dom.js, line 434

Get the value of an element's attribute.

Parameters:

Name	Type	Description
el	Element	A DOM element.
attribute	string	Attribute to get the value of.

Returns:

string -

The value of the attribute.

static getAttributes(tag) → {Object}

utils/dom.js, line 391

Get an element's attribute values, as defined on the HTML tag.

Attributes are not the same as properties. They're defined on the tag or with setAttribute.

Parameters:

Name	Type	Description
tag	Element	Element from which to get tag attributes.

Returns:

Object -

All attributes of the element. Boolean attributes will be true or false, others will be strings.

static getBoundingClientRect(el) → {Object|undefined}

utils/dom.js, line 505

Identical to the native getBoundingClientRect function, but ensures that the method is supported at all (it is in all browsers we claim to support) and that the element is in the DOM before continuing.

This wrapper function also shims properties which are not provided by some older browsers (namely, IE8).

Additionally, some browsers do not support adding properties to a ClientRect/DOMRect object; so, we shallow-copy it with the standard properties (except x and y which are not widely supported). This helps avoid implementations where keys are non-enumerable.

Parameters:

Name	Type	Description
el	Element	Element whose ClientRect we want to calculate.

Returns:

Object | undefined -

Always returns a plain object - or undefined if it cannot.

static getPointerPosition(el, event) → {module:dom~Coordinates}

utils/dom.js, line 612

Get the pointer position within an element.

The base on the coordinates are the bottom left of the element.

Parameters:

Name	Type	Description
el	Element	Element on which to get the pointer position on.
event	EventTarget~Event	Event object.

Returns:

module:dom~Coordinates -

A coordinates object corresponding to the mouse position.

static hasClass(element, classToCheck) → {boolean}

utils/dom.js, line 237

Check if an element has a class name.

Parameters:

Name	Type	Description
element	Element	Element to check
classToCheck	string	Class name to check for

Throws:

Throws an error if classToCheck has white space.

Type

Error

Returns:

boolean -

Will be true if the element has a class, false otherwise.

static insertContent(el, content) → {Element}

utils/dom.js, line 753

Normalizes and inserts content into an element; this is identical to appendContent(), except it empties the element first.

Parameters:

Name	Type	Description
el	Element	Element to insert normalized content into.
content	module:dom~ContentDescriptor	A content descriptor value.

Returns:

Element -

The element with inserted normalized content.

static isEl(value) → {boolean}

utils/dom.js, line 84

Determines, via duck typing, whether or not a value is a DOM element.

Parameters:

Name	Type	Description
value	Mixed	The value to check.

Returns:

boolean -

Will be true if the value is a DOM element, false otherwise.

static isInFrame() → {boolean}

utils/dom.js, line 95

Determines if the current DOM is embedded in an iframe.

Returns:

boolean -

Will be true if the DOM is embedded in an iframe, false otherwise.

static isReal() → {boolean}

utils/dom.js, line 70

Whether the current DOM interface appears to be real (i.e. not simulated).

Returns:

boolean -

Will be true if the DOM appears to be real, false otherwise.

static isSingleLeftClick(event) → {boolean}

utils/dom.js, line 766

Check if an event was a single left click.

Parameters:

Name	Type	Description
event	EventTarget~Event	Event object.

Returns:

boolean -

Will be true if a single left click, false otherwise.

static isTextNode(value) → {boolean}

utils/dom.js, line 643

Determines, via duck typing, whether or not a value is a text node.

Parameters:

Name	Type	Description
value	Mixed	Check if this value is a text node.

Returns:

boolean -

Will be true if the value is a text node, false otherwise.

static normalizeContent(content) → {Array}

utils/dom.js, line 695

Normalizes content for eventual insertion into the DOM.

This allows a wide range of content definition methods, but helps protect from falling into the trap of simply writing to innerHTML, which could be an XSS concern.

The content for an element can be passed in multiple types and combinations, whose behavior is as follows:

Parameters:

Name	Type	Description
content	module:dom~ContentDescriptor	A content descriptor value.

Returns:

Array -

All of the content that was passed in, normalized to an array of elements or text nodes.

static prependTo(child, parent)

utils/dom.js, line 214

Insert an element as the first child node of another

Parameters:

Name	Type	Description
child	Element	Element to insert
parent	Element	Element to insert child into

static removeAttribute(el, attribute)

utils/dom.js, line 463

Remove an element's attribute.

Parameters:

Name	Type	Description
el	Element	A DOM element.
attribute	string	Attribute to remove.

static removeClass(element, classToRemove) → {Element}

utils/dom.js, line 282

Remove a class name from an element.

Parameters:

Name	Type	Description
element	Element	Element to remove a class name from.
classToRemove	string	Class name to remove

Returns:

Element -

The DOM element with class name removed.

static setAttribute(el, attribute, value)

utils/dom.js, line 450

Set the value of an element's attribute.

Parameters:

Name	Type	Description
el	Element	A DOM element.
attribute	string	Attribute to set.
value	string	Value to set the attribute to.

static setAttributes(el, attributesopt)

utils/dom.js, line 366

Apply attributes to an HTML element.

Parameters:

Name	Type	Attributes	Description
el	Element		Element to add attributes to.
attributes	Object	<optional>	Attributes to be applied.

static textContent(el, text) → {Element}

utils/dom.js, line 196

Injects text into an element, replacing any existing contents entirely.

Parameters:

Name	Type	Description
el	Element	The element to add text content into
text	string	The text content to add.

Returns:

Element -

The element with added text content.

static toggleClass(element, classToToggle, predicateopt) → {Element}

utils/dom.js, line 327

Adds or removes a class name to/from an element depending on an optional condition or the presence/absence of the class name.

Parameters:

Name	Type	Attributes	Description
element	Element		The element to toggle a class name on.
classToToggle	string		The class that should be toggled.
predicate	boolean | module:dom~PredicateCallback	<optional>	See the return value for module:dom~PredicateCallback

Returns:

Element -

The element with a class that has been toggled.

static unblockTextSelection()

utils/dom.js, line 480

Turn off text selection blocking.

Type Definitions

ContentDescriptor()

utils/dom.js, line 663

This is a mixed value that describes content to be injected into the DOM via some method. It can be of the following types:

Type	Description
string	The value will be normalized into a text node.
Element	The value will be accepted as-is.
TextNode	The value will be accepted as-is.
Array	A one-dimensional array of strings, elements, text nodes, or functions. These functions should return a string, element, or text node (any other return value, like an array, will be ignored).
Function	A function, which is expected to return a string, element, text node, or array - any of the other possible values described above. This means that a content descriptor could be a function that returns an array of functions, but those second-level functions must return strings, elements, or text nodes.

Coordinates

utils/dom.js, line 585

Represents x and y coordinates for a DOM element or mouse pointer.

Properties:

Name	Type	Description
x	number	x coordinate in pixels
y	number	y coordinate in pixels

Position

utils/dom.js, line 528

Represents the position of a DOM element on the page.

Properties:

Name	Type	Description
left	number	Pixels to the left.
top	number	Pixels from the top.

PredicateCallback(element, classToToggle) → {boolean|undefined}

utils/dom.js, line 295

The callback definition for toggleClass.

Parameters:

Name	Type	Description
element	Element	The DOM element of the Component.
classToToggle	string	The className that wants to be toggled

Returns:

boolean | undefined -

If true is returned, the classToToggle will be added to the element. If false, the classToToggle will be removed from the element. If undefined, the callback will be ignored.