Adobe Experience Manager (AEM) Components - The Basics aem-components-the-basics

Last update: Wed Apr 17 2024 00:00:00 GMT+0000 (Coordinated Universal Time)

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When you start to develop new components, you need to understand the basics of their structure and configuration.

This process involves reading the theory and looking at the wide range of component implementations in a standard AEM instance. This latter approach is slightly complicated by the fact that although AEM has shifted to a new standard, modern, touch-enabled UI, it continues to support the classic UI.

Overview overview

This section covers key concepts and issues as an introduction to the details needed when developing your own components.

Planning planning

Before starting to actually configure or code your component, you should ask:

What exactly do you need the new component to do?
- A clear specification helps at all stages of development, testing, and handover. Details may change over time, but the specification can be updated (though changes should be documented too).
Do you need to create your component from scratch, or can you inherit the basics from an existing component?
- There is no need to reinvent the wheel.
- There are several mechanisms provided by AEM that lets you inherit and extend details from another component definition including override, overlay, and the Sling Resource Merger.
Does your component require logic to select or manipulate the content?
- Logic should be kept separate from the user interface layer. HTL is designed to help ensure this happens.
Does your component need CSS formatting?
- CSS formatting should be kept separate from the component definitions. Define conventions for naming your HTML elements so that you can modify them through external CSS files.
What security aspects should I consider?
- See Security Checklist - Development Best Practices for more details.

Touch-Enabled vs Classic UI touch-enabled-vs-classic-ui

Before any serious discussion starts about developing components, you must know which UI your authors are using:

Touch-Enabled UI
The standard user interface is based on the unified user experience for the Adobe Experience Cloud, using the underlying technologies of Coral UI and Granite UI.
Classic UI
User interface based on ExtJS technology that was deprecated with AEM 6.4.

See UI Interface Recommendations for Customers for more details.

Components can be implemented to support the touch-enabled UI, the classic UI or both. When looking at a standard instance you will also see out-of-the-box components that were originally designed for the classic UI, or the touch-enabled UI, or both.

The basics of both are covered on this page, and how to recognize them.

NOTE

Adobe recommends using the touch-enabled UI to benefit from the latest technology. AEM Modernization Tools can make a migration easier.

Content Logic and Rendering Markup content-logic-and-rendering-markup

Adobe recommends keeping the code responsible for markup and rendering separate from the code that controls the logic used to select the component’s content.

This philosophy is supported by HTL, a templating language that is purposely limited to ensure that a real programming language is used to define the underlying business logic. This (optional) logic is invoked from HTL with a specific command. This mechanism highlights the code that is called for a given view and, if necessary, allows specific logic for different views of the same component.

HTL vs JSP htl-vs-jsp

HTL is an HTML templating language introduced with AEM 6.0.

The discussion of whether to use HTL or JSP (Java™ Server Pages) when developing your own components should be straightforward as HTL is now the recommended scripting language for AEM.

Both HTL and JSP can be used for developing components for both the classic and the touch-enabled UI. Although there can be a tendency to assume that HTL is only for the touch-enabled UI and JSP for the classic UI, this is a misconception and more due to timing. The touch-enabled UI and HTL were incorporated into AEM over approximately the same period. Since HTL is now the recommended language, it is being used for new components, which tend to be for the touch-enabled UI.

NOTE

The exceptions are Granite UI Foundation Form Fields (as used in dialogs). These still require the use of JSP.

Developing Your Own Components developing-your-own-components

To create your own components for the appropriate UI, see (after reading this page):

A quick way to get started is to copy an existing component and then make the changes you want. To learn how to create your own components and add them to the paragraph system see:

Developing Components (focused on the touch-enabled UI)

Moving Components to the Publish Instance moving-components-to-the-publish-instance

The components that render content must be deployed on the same AEM instance as the content. Therefore, all components that are used for authoring and rendering pages on the author instance must be deployed on the publish instance. When deployed, the components are available to render activated pages.

Use the following tools to move your components to the publish instance:

Use Package Manager to add your components to a package and move them to another AEM instance.
Use the Activate Tree replication tool to replicate the components.

NOTE

These mechanisms can also be used for transferring your component between other instances, for example, from your development to your test instance.

Components to be Aware of from the Start components-to-be-aware-of-from-the-start

Page:
- AEM has the page component ( cq:Page).
- This is a specific type of resource that is important for content management.
  - A page corresponds to a web page holding content for your website.
Paragraph systems:
- The paragraph system is a key part of a website as it manages a list of paragraphs. It is used to hold and structure the individual components that hold the actual content.
- You can create, move, copy, and delete paragraphs in the paragraph system.
- You can also select the components to be available for use within a specific paragraph system.
- There are various paragraph systems available within a standard instance (for example, parsys, [responsivegrid](/docs/experience-manager-65/sites-authoring/responsive-layout.md)).

Structure structure

The structure of an AEM component is powerful and flexible, the main considerations are:

Resource Type
Component Definition
Properties and Child Nodes of a Component
Dialogs
Design Dialogs
Component Availability
Components and the Content They Create

Resource Type resource-type

A key element of the structure is the resource type.

Content structure declares intentions.
Resource type implements them.

This is an abstraction that helps ensure that even when the look and feel changes over time, the intention stays the time.

Component Definition component-definition

Component Basics component-basics

The definition of a component can be broken down as follows:

AEM components are based on Sling.
AEM components are (usually) located under:
- HTL: /libs/wcm/foundation/components
- JSP: /libs/foundation/components
Project/Site specific components are (usually) located under:
- /apps/<myApp>/components
AEM standard components are defined as cq:Component and have the key elements:
- jcr properties:
  
  A list of jcr properties; these are variable and some may be optional though the basic structure of a component node, its properties, and subnodes are defined by the cq:Component definition
- Resources:
  
  These define static elements used by the component.
- Scripts:
Are used to implement the behavior of the resulting instance of the component.
Root Node:
- <mycomponent> (cq:Component) - Hierarchy node of the component.
Vital Properties:
- jcr:title - Component title; for example, used as a label when the component is listed in the components browser or sidekick.
- jcr:description - Description for the component; can be used as mouse-over hint in the components browser or sidekick.
- Classic UI:
  - icon.png - Icon for this component.
  - thumbnail.png - Image shown if this component is listed within the paragraph system.
- Touch UI
  - See the section Component Icon in Touch UI for details.
Vital Child Nodes:
- cq:editConfig (cq:EditConfig) - Defines the edit properties of the component and enables the component to appear in the Components browser or Sidekick.
  
  Note: if the component has a dialog, it will automatically appear in the Components browser or Sidekick, even if the cq:editConfig does not exist.
- cq:childEditConfig (cq:EditConfig) - Controls author UI aspects for child components that do not define their own cq:editConfig.
- Touch-Enabled UI:
  - cq:dialog ( nt:unstructured) - Dialog for this component. Defines the interface allowing the user to configure the component and/or edit content.
  - cq:design_dialog ( nt:unstructured) - Design editing for this component
- Classic UI:
  - dialog ( cq:Dialog) - Dialog for this component. Defines the interface that lets the user configure the component, or edit content, or both.
  - design_dialog ( cq:Dialog) - Design editing for this component.

Component Icon in Touch UI component-icon-in-touch-ui

The icon or abbreviation for the component is defined via JCR properties of the component when the component is created by the developer. These properties are evaluated in the following order and the first valid property found is used.

cq:icon - String property pointing to a standard icon in the Coral UI library to display in the component browser
- Use the value of the HTML attribute of the Coral icon.
abbreviation - String property to customize the abbreviation of the component name in the component browser
- The abbreviation should be limited to two characters.
- Providing an empty string builds the abbreviation from first two characters of the jcr:title property.
  - For example, “Im” for “Image”
  - The localized title is used to build the abbreviation.
- The abbreviation is only translated if the component has an abbreviation_commentI18n property, which is then used as translation hint.
cq:icon.png or cq:icon.svg - Icon for this component, which is shown in the component browser
- 20 x 20 pixels is the size of icons of standard components.
  - Larger icons are downsized (client-side).
- The recommended color is rgb(112, 112, 112) > #707070
- The background of standard component icons is transparent.
- Only .png and .svg files are supported.
- If importing from the file system by way of the Eclipse plugin, filenames must be escaped as _cq_icon.png or _cq_icon.svg for example.
- .png takes precedent over .svg if both are present

If none of the above properties ( cq:icon, abbreviation, cq:icon.png, or cq:icon.svg) are found on the component:

The system searchs for the same properties on the super components following the sling:resourceSuperType property.
If nothing or an empty abbreviation is found at the super component level, the system builds the abbreviation from the first letters of the jcr:title property of the current component.

To cancel the inheritance of icons from super components, setting an empty abbreviation property on the component reverts to the default behavior.

The Component Console displays how the icon for a particular component is defined.

SVG Icon Example svg-icon-example

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "https://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg version="1.1" id="Layer_1" xmlns="https://www.w3.org/2000/svg" xmlns:xlink="https://www.w3.org/1999/xlink" x="0px" y="0px"
     width="20px" height="20px" viewBox="0 0 20 20" enable-background="new 0 0 20 20" xml:space="preserve">
    <ellipse cx="5" cy="5" rx="3" ry="3" fill="#707070"/>
    <ellipse cx="15" cy="5" rx="4" ry="4" fill="#707070"/>
    <ellipse cx="5" cy="15" rx="5" ry="5" fill="#707070"/>
    <ellipse cx="15" cy="15" rx="4" ry="4" fill="#707070"/>
</svg>

Properties and Child Nodes of a Component properties-and-child-nodes-of-a-component

Many of the nodes/properties that are needed to define a component are common to both UIs, with differences remaining independent so that your component can work in both environments.

A component is a node of type cq:Component and has the following properties and child nodes:

Name

Type

Description

cq:Component

Current component. A component is of node type cq:Component.

componentGroup

String

Group under which the component can be selected in the Components browser (touch-enabled UI) or Sidekick (classic UI).
A value of .hidden is used for components that are not available for selection from the UI such as the actual paragraph systems.

cq:isContainer

Boolean

Indicates whether the component is a container component and therefore can contain other components such as a paragraph system.

cq:dialog

nt:unstructured

Definition of the edit dialog for the touch-enabled UI.

dialog

cq:Dialog

Definition of the edit dialog for the classic UI.

cq:design_dialog

nt:unstructured

Definition of the design dialog for the touch-enabled UI.

design_dialog

cq:Dialog

Definition of the design dialog for the classic UI.

dialogPath

String

Path to a dialog to cover the case when the component does not have a dialog node.

cq:cellName

String

If set, this property is taken as Cell ID. For more information, see the Knowledge Base article How are Design Cell IDs built.

cq:childEditConfig

cq:EditConfig

When the component is a container—for example, a paragraph system—it drives the edit configuration of the child nodes.

cq:editConfig

cq:EditConfig

Edit configuration of the component.

cq:htmlTag

nt:unstructured

Returns additional tag attributes that are added to the surrounding html tag. Enables addition of attributes to the automatically generated divs.

cq:noDecoration

Boolean

If true, the component is not rendered with automatically generated div and css classes.

cq:template

nt:unstructured

If found, this node is used as a content template when the component is added from the Components Browser or Sidekick.

cq:templatePath

String

Path to a node to use as a content template when the component is added from the Components browser or Sidekick. This must be an absolute path, not relative to the component node.
Unless you want to reuse content already available elsewhere, this is not required and cq:template is sufficient (see below).

jcr:created

Date

Date of creation of the component.

jcr:description

String

Description of the component.

jcr:title

String

Title of the component.

sling:resourceSuperType

String

When set, the component inherits from this component.

virtual

sling:Folder

Enables creation of virtual components. To see an example, look at the contact component at:
/libs/foundation/components/profile/form/contact

<breadcrumb.jsp>

nt:file

Script file.

icon.png

nt:file

Icon of the component, appears next to the Title in Sidekick.

thumbnail.png

nt:file

Optional thumbnail that is shown while the component is dragged into place from Sidekick.

If you look at the Text component (either version), you can see these elements:

HTL ( /libs/wcm/foundation/components/text)
JSP ( /libs/foundation/components/text)

Properties of particular interest include:

jcr:title - title of the component; this can be used to identify the component, for example, it appears in the component list within the components browser or sidekick
jcr:description - description for the component; can be used as mouse-over hint in the component list within sidekick
sling:resourceSuperType: this indicates the path of inheritance when extending a component (by overriding a definition)

Child nodes of particular interest include:

cq:editConfig ( cq:EditConfig) - this controls visual aspects; for example, it can define the appearance of a bar or widget, or can add customized controls
cq:childEditConfig ( cq:EditConfig) - this controls the visual aspects for child components that do not have their own definitions
Touch-Enabled UI:
- cq:dialog ( nt:unstructured) - defines the dialog for editing content of this component
- cq:design_dialog ( nt:unstructured) - specifies the design editing options for this component
Classic UI:
- dialog ( cq:Dialog) - defines the dialog for editing content of this component (specific to the classic UI)
- design_dialog ( cq:Dialog) - specifies the design editing options for this component
- icon.png - graphics file to be used as an icon for the component in the Sidekick
- thumbnail.png - graphics file to be used as a thumbnail for the component while dragging it from the Sidekick

Dialogs dialogs

Dialogs are a key element of your component as they provide an interface for authors to configure and provide input to that component.

Depending on the complexity of the component, your dialog may need one or more tabs - to keep the dialog short and to sort the input fields.

Dialog definitions are specific to the UI:

NOTE

For compatibility purposes the touch-enabled UI can use the definition of a classic UI dialog, when no dialog has been defined for the touch-enabled UI.
The AEM Modernization Tools are also provided to help you extend/convert components that only have dialogs defined for the classic UI.

Touch-Enabled UI
- cq:dialog ( nt:unstructured) nodes:
  - define the dialog for editing content of this component
  - specific to the touch-enabled UI
  - are defined using Granite UI components
  - have a property sling:resourceType, as standard Sling content structure
  - can have a property helpPath to define the context-sensitive help resource (absolute or relative path) that is accessed when the Help icon (the ? icon) is selected.
    - For out-of-the box components, this often references a page in the documentation.
    - If no helpPath is specified, the default URL (documentation overview page) is shown.
Within the dialog, individual fields are defined:
Classic UI
- dialog ( cq:Dialog) nodes
  - define the dialog for editing content of this component
  - specific to the classic UI
  - are defined using ExtJS widgets
  - have a property xtype, which refers to ExtJS
  - can have a property helpPath to define the context-sensitive help resource (absolute or relative path) that is accessed when the Help button is selected.
    - For out-of-the box components, this often references a page in the documentation.
    - If no helpPath is specified, the default URL (documentation overview page) is shown.
Within the dialog, individual fields are defined:

Within a classic dialog box:
- you can create the dialog as cq:Dialog, which will provide a single tab - as in the text component, or if you need multiple tabs, as with the textimage component, the dialog can be defined as cq:TabPanel.
- a cq:WidgetCollection ( items) is used to provide a base for either input fields ( cq:Widget) or further tabs ( cq:Widget). This hierarchy can be extended.

Design Dialogs design-dialogs

Design dialogs are similar to the dialogs used to edit and configure content, but they provide the interface for authors to configure and provide design details for that component.

Design dialogs are available in Design Mode, though they are not needed for all components, for example, Title and Image both have design dialogs, whereas Text does not.

The design dialog for the paragraph system (for example, parsys) is a special case as it allows the user to specific other components to be available for selection (from the components browser or sidekick) on the page.

Adding your Component to the Paragraph System adding-your-component-to-the-paragraph-system

After a component is defined, it must be made available for use. To make a component available for use in a paragraph system, you can either:

Open Design Mode for a page and enable the required component.
Add the required components to the components property of your template definition under:

/etc/designs/<*yourProject*>/jcr:content/<*yourTemplate*>/par

For example, see:

/etc/designs/geometrixx/jcr:content/contentpage/par

Components and the Content They Create components-and-the-content-they-create

If you create and configure an instance of the Title component on the page: <content-path>/Prototype.html

Touch-Enabled UI
Classic UI

Then you can see the structure of the content created within the repository:

screen_shot_2012-02-13at61405pm

In particular, if you look at the actual text for a Title:

the definition (for both UIs) has the property name= ./jcr:title
- /libs/foundation/components/title/cq:dialog/content/items/column/items/title
- /libs/foundation/components/title/dialog/items/title
within the content, this generates the property jcr:title holding the author’s content.

The properties defined depend on the individual definitions. Although they can be more complex than above, they still follow the same basic principles.

Component Hierarchy and Inheritance component-hierarchy-and-inheritance

Components within AEM are subject to three different hierarchies:

Resource Type Hierarchy

This is used to extend components using the property sling:resourceSuperType. This enables the component to inherit. For example, a text component inherits various attributes from the standard component.
- scripts (resolved by Sling)
- dialogs
- descriptions (including thumbnail images, and icons)
Container Hierarchy

This is used to populate configuration settings to the child component and is most commonly used in a parsys scenario.

For example, configuration settings for the edit bar buttons, control set layout (editbars, rollover), dialog layout (inline, floating) can be defined on the parent component and propagated to the child components.

Configuration settings (related to edit functionality) in cq:editConfig and cq:childEditConfig are propagated.
Include Hierarchy

This is imposed at runtime by the sequence of includes.

This hierarchy is used by the Designer, which in turn acts as the base for various design aspects of the rendering; including layout information, css information, the available components in a parsys among others.

Edit Behavior edit-behavior

This section explains how to configure the edit behavior of a component. This includes attributes such as actions available for the component, characteristics of the inplace editor, and the listeners related to events on the component.

The configuration is common to both the touch-enabled and classic UI, albeit with certain, specific differences.

The edit behavior of a component is configured by adding a cq:editConfig node of type cq:EditConfig below the component node (of type cq:Component) and by adding specific properties and child nodes. The following properties and child nodes are available:

cq:editConfig node properties:
- cq:actions ( String array): defines the actions that can be performed on the component.
- cq:layout ( String): defines how the component is edited in the classic UI.
- cq:dialogMode ( String): defines how the component dialog is opened in the classic UI
  - In the touch-enabled UI, dialogs are always floating in desktop mode, and automatically opened as fullscreen in mobile.
- cq:emptyText ( String): defines text that is displayed when no visual content is present.
- cq:inherit ( Boolean): defines if missing values are inherited from the component that it inherits from.
- dialogLayout (String): defines how the dialog should open.
cq:editConfig child nodes:
- cq:dropTargets (node type nt:unstructured): defines a list of drop targets that can accept a drop from an asset of the content finder
  - Multiple drop targets are only available in the classic UI.
  - In the touch-enabled UI, a single drop target is allowed.
- cq:actionConfigs (node type nt:unstructured): defines a list of new actions that are appended to the cq:actions list.
- cq:formParameters (node type nt:unstructured): defines additional parameters that are added to the dialog form.
- cq:inplaceEditing (node type cq:InplaceEditingConfig): defines an inplace editing configuration for the component.
- cq:listeners (node type cq:EditListenersConfig): defines what happens before or after an action occurs on the component.

NOTE

In this page, a node (properties and child nodes) is represented as XML, as shown in the following example.

<jcr:root xmlns:cq="https://www.day.com/jcr/cq/1.0" xmlns:jcr="https://www.jcp.org/jcr/1.0"
    cq:actions="[edit]"
    cq:dialogMode="floating"
    cq:layout="editbar"
    jcr:primaryType="cq:EditConfig">
    <cq:listeners
        jcr:primaryType="cq:EditListenersConfig"
        afteredit="REFRESH_PAGE"/>
</jcr:root>

There are many existing configurations in the repository. You can easily search for specific properties or child nodes:

To look for a property of the cq:editConfig node, for example, cq:actions, you can use the Query tool in CRXDE Lite and search with the following XPath query string:

//element(cq:editConfig, cq:EditConfig)[@cq:actions]
To look for a child node of cq:editConfig, for example, you can search for cq:dropTargets, which is of type cq:DropTargetConfig; you can use the Query tool in** CRXDE Lite** and search with the following XPath query string:

//element(cq:dropTargets, cq:DropTargetConfig)

Component Placeholders component-placeholders

Components must always render some HTML that is visible to the author, even when the component has no content. Otherwise, it might visually disappear from the editor’s interface, making it technically present but invisible on the page and in the editor. In such a case, the authors cannot select and interact with the empty component.

For this reason, components should render a placeholder as long as they do not render any visible output when the page is rendered in the page editor (when the WCM mode is edit or preview).
The typical HTML markup for a placeholder is the following:

<div class="cq-placeholder" data-emptytext="Component Name"></div>

The typical HTL script that renders the above placeholder HTML is the following:

<div class="cq-placeholder" data-emptytext="${component.properties.jcr:title}"
     data-sly-test="${(wcmmode.edit || wcmmode.preview) && isEmpty}"></div>

In the previous example, isEmpty is a variable that is true only when the component has no content and is invisible to the author.

To avoid repetition, Adobe recommends that implementers of components use an HTL template for these placeholders, like the one provided by the Core Components.

The usage of the template in the previous link is then done with the following line of HTL:

<sly data-sly-use.template="core/wcm/components/commons/v1/templates.html"
     data-sly-call="${template.placeholder @ isEmpty=!model.text}"></sly>

In the previous example, model.text is the variable that is true only when the content has content and is visible.

An example usage of this template can be seen in the Core Components, such as in the Title Component.

Configuring with cq:EditConfig Properties configuring-with-cq-editconfig-properties

cq:actions cq-actions

The cq:actions property ( String array) defines one or several actions that can be performed on the component. The following values are available for configuration:

Property Value

Description

text:<some text>

Displays the static text value <some text>
Only visible in classic UI. The touch-enabled UI does not display actions in a contextual menu, so this is not applicable.

Adds a spacer.
Only visible in classic UI. The touch-enabled UI does not display actions in a contextual menu, so this is not applicable.

edit

Adds a button to edit the component.

editannotate

Adds a button to edit the component and allowing annotations.

delete

Adds a button to delete the component.

insert

Adds a button to insert a new component before the current one.

copymove

Adds a button to copy and cut the component.

The following configuration adds an edit button, a spacer, a delete, and an insert button to the component edit bar:

<jcr:root xmlns:cq="https://www.day.com/jcr/cq/1.0" xmlns:jcr="https://www.jcp.org/jcr/1.0"
    cq:actions="[edit,-,delete,insert]"
    cq:layout="editbar"
    jcr:primaryType="cq:EditConfig"/>

The following configuration adds the text “Inherited Configurations from Base Framework” to the component edit bar:

<jcr:root xmlns:cq="https://www.day.com/jcr/cq/1.0" xmlns:jcr="https://www.jcp.org/jcr/1.0"
    cq:actions="[text:Inherited Configurations from Base Framework]"
    cq:layout="editbar"
    jcr:primaryType="cq:EditConfig"/>

cq:layout (Classic UI Only) cq-layout-classic-ui-only

The cq:layout property ( String) defines how the component can be edited in the classic UI. The following values are available:

Property Value

Description

rollover

Default value. The component edition is accessible "on mouse over" through clicks and/or context menu.
For advanced use, the corresponding client-side object is: CQ.wcm.EditRollover.

editbar

The component edition is accessible through a toolbar.
For advanced use, the corresponding client-side object is: CQ.wcm.EditBar.

auto

The choice is left to the client-side code.

NOTE

The concepts of rollover and editbar are not applicable in the touch-enabled UI.

The following configuration adds an edit button to the component edit bar:

<jcr:root xmlns:cq="https://www.day.com/jcr/cq/1.0" xmlns:jcr="https://www.jcp.org/jcr/1.0"
    cq:actions="[edit]"
    cq:layout="editbar"
    jcr:primaryType="cq:EditConfig">
</jcr:root>

cq:dialogMode (Classic UI Only) cq-dialogmode-classic-ui-only

The component can be linked to an edit dialog. The cq:dialogMode property ( String) defines how the component dialog is opened in the classic UI. The following values are available:

Property Value

Description

floating

The dialog is floating.

inline

(default value). The dialog is anchored over the component.

auto

If the component width is smaller than the client-side CQ.themes.wcm.EditBase.INLINE_MINIMUM_WIDTH value, the dialog is floating, otherwise it is inline.

NOTE

In the touch-enabled UI, dialogs are always floating in desktop mode and automatically opened as fullscreen in mobile.

The following configuration defines an edit bar with an edit button, and a floating dialog:

<jcr:root xmlns:cq="https://www.day.com/jcr/cq/1.0" xmlns:jcr="https://www.jcp.org/jcr/1.0"
    cq:actions="[edit]"
    cq:dialogMode="floating"
    cq:layout="editbar"
    jcr:primaryType="cq:EditConfig">
</jcr:root>

cq:emptyText cq-emptytext

The cq:emptyText property ( String) defines text that is displayed when no visual content is present. It defaults to: Drag components or assets here.

cq:inherit cq-inherit

The cq:inherit property ( boolean) defines whether missing values are inherited from the component that it inherits from. It defaults to false.

dialogLayout dialoglayout

The dialogLayout property defines how a dialog should open by default.

A value of fullscreen opens the dialog in full screen.
An empty value or absence of the property defaults to opening the dialog normally.
The user can always toggle the fullscreen mode within the dialog.
Does not apply to the classic UI.

Configuring with cq:EditConfig Child Nodes configuring-with-cq-editconfig-child-nodes

cq:dropTargets cq-droptargets

The cq:dropTargets node (node type nt:unstructured) defines a list of drop targets that can accept a drop from an asset dragged from the content finder. It serves as a collection of nodes of type cq:DropTargetConfig.

NOTE

Multiple drop targets are only available in the classic UI.

In the touch-enabled UI, only the first target is used.

Each child node of type cq:DropTargetConfig defines a drop target in the component. The node name is important because it must be used in the JSP, as follows, to generate the CSS class name assigned to the DOM element that is the effective drop target:

<drop target css class> = <drag and drop prefix> +
 <node name of the drop target in the edit configuration>

The <drag and drop prefix> is defined by the Java™ property:

com.day.cq.wcm.api.components.DropTarget.CSS_CLASS_PREFIX.

For example, the class name is defined as follows in the JSP of the Download component
( /libs/foundation/components/download/download.jsp), where file is the node name of the drop target in the edit configuration of the Download component:

String ddClassName = DropTarget.CSS_CLASS_PREFIX + "file";

The node of type cq:DropTargetConfig must have the following properties:

Property Name

Property Value

accept

Regex applied to the asset mime type to validate if dropping is allowed.

groups

Array of drop target groups. Each group must match the group type that is defined in the content finder extension and that is attached to the assets.

propertyName

Name of the property that will be updated after a valid drop.

The following configuration is taken from the Download component. It enables any asset (the mime-type can be any string) from the media group to be dropped from the content finder into the component. After the drop, the component property fileReference is being updated:

    <cq:dropTargets jcr:primaryType="nt:unstructured">
        <file
            jcr:primaryType="cq:DropTargetConfig"
            accept="[.*]"
            groups="[media]"
            propertyName="./fileReference"/>
    </cq:dropTargets>

cq:actionConfigs (Classic UI Only) cq-actionconfigs-classic-ui-only

The cq:actionConfigs node (node type nt:unstructured) defines a list of new actions that are appended to the list defined by the cq:actions property. Each child node of cq:actionConfigs defines a new action by defining a widget.

The following sample configuration defines a new button (with a separator for the classic UI):

a separator, defined by the xtype tbseparator;
- This is only used by the classic UI.
- This definition is ignored by the touch-enabled UI as xtypes are ignored (and separators are unnecessary as the action toolbar is constructed differently in the touch-enabled UI).
a button named Manage comments that runs the handler function CQ_collab_forum_openCollabAdmin().

<jcr:root xmlns:cq="https://www.day.com/jcr/cq/1.0" xmlns:jcr="https://www.jcp.org/jcr/1.0" xmlns:nt="https://www.jcp.org/jcr/nt/1.0"
    cq:actions="[EDIT,COPYMOVE,DELETE,INSERT]"
    jcr:primaryType="cq:EditConfig">
    <cq:actionConfigs jcr:primaryType="nt:unstructured">
        <separator0
            jcr:primaryType="nt:unstructured"
            xtype="tbseparator"/>
        <manage
            jcr:primaryType="nt:unstructured"
            handler="function(){CQ_collab_forum_openCollabAdmin();}"
            text="Manage comments"/>
    </cq:actionConfigs>
</jcr:root>

NOTE

See Add New Action to a Component Toolbar as an example for the touch-enabled UI.

cq:formParameters cq-formparameters

The cq:formParameters node (node type nt:unstructured) defines additional parameters that are added to the dialog form. Each property is mapped to a form parameter.

The following configuration adds a parameter called name, set with the value photos/primary to the dialog form:

    <cq:formParameters
        jcr:primaryType="nt:unstructured"
        name="photos/primary"/>

cq:inplaceEditing cq-inplaceediting

The cq:inplaceEditing node (node type cq:InplaceEditingConfig) defines an inplace editing configuration for the component. It can have the following properties:

Property Name

Property Value

active

(boolean) True to enable the inplace editing of the component.

configPath

(String) Path of the editor configuration. The configuration can be specified by a configuration node.

editorType

(String) Editor type. The available types are:

plaintext: to be used for non-HTML content.
title: is an enhanced plaintext editor that converts graphical titles into a plaintext before editing begins. Used by the Geometrixx title component.
text: to be used for HTML content (uses the Rich Text Editor).

The following configuration enables the inplace editing of the component and defines plaintext as the editor type:

    <cq:inplaceEditing
        jcr:primaryType="cq:InplaceEditingConfig"
        active="{Boolean}true"
        editorType="plaintext"/>

cq:listeners cq-listeners

The cq:listeners node (node type cq:EditListenersConfig) defines what happens before or after an action on the component. The following table defines its possible properties.

Property Name

Property Value

Default Value

(Classic UI Only)

beforedelete

The handler is triggered before the component is removed.

beforeedit

The handler is triggered before the component is edited.

beforecopy

The handler is triggered before the component is copied.

beforemove

The handler is triggered before the component is moved.

beforeinsert

The handler is triggered before the component is inserted.
Only operational for the touch-enabled UI.

beforechildinsert

The handler is triggered before the component is inserted inside another component (containers only).

afterdelete

The handler is triggered after the component is removed.

REFRESH_SELF

afteredit

The handler is triggered after the component is edited.

REFRESH_SELF

aftercopy

The handler is triggered after the component is copied.

REFRESH_SELF

afterinsert

The handler is triggered after the component is inserted.

REFRESH_INSERTED

aftermove

The handler is triggered after the component is moved.

REFRESH_SELFMOVED

afterchildinsert

The handler is triggered after the component is inserted inside another component (containers only).

NOTE

The REFRESH_INSERTED and REFRESH_SELFMOVED handlers are only available in the classic UI.

NOTE

Default values for the listeners are only set in the classic UI.

NOTE

If there are nested components, there are certain restrictions on actions defined as properties on the cq:listeners node:

For nested components, the values of the following properties must be REFRESH_PAGE: >
- aftermove
- aftercopy

The event handler can be implemented with a custom implementation. For example, where project.customerAction is a static method:

afteredit = "project.customerAction"

The following example is equivalent to the REFRESH_INSERTED configuration:

afterinsert="function(path, definition) { this.refreshCreated(path, definition); }"

NOTE

For the classic UI, to see which parameters can be used in the handlers, see the before<action> and after<action> events section of the CQ.wcm.EditBar and CQ.wcm.EditRollover widget documentation.

With the following configuration, the page is refreshed after the component is deleted, edited, inserted, or moved:

    <cq:listeners
        jcr:primaryType="cq:EditListenersConfig"
        afterdelete="REFRESH_PAGE"
        afteredit="REFRESH_PAGE"
        afterinsert="REFRESH_PAGE"
        afterMove="REFRESH_PAGE"/>

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