Parent Project
Project Documentation


Tag Name: <tr:chooseColor>
Java Class: org.apache.myfaces.trinidad.component.core.input.CoreChooseColor
Component Type: org.apache.myfaces.trinidad.CoreChooseColor
The chooseColor control creates a palette for picking colors. A chooseColor can display two sets of colors:
  • A set of standard colors, as specified by the colorData attribute.
  • A set of custom colors which extend the set of colors available in the standard palette. Custom colors are specified by the customColorData attribute.

Both the colorData and customColorData attributes accept both List and array objects, each of which contain one java.awt.Color instance for each color to display.

In order to simplify the use of standard palettes, Apache Trinidad makes certain palettes available via the requestContext.colorPalette EL implicit object. The "#{requestContext.colorPalette}" implicit object provides access to four standard color palettes:

  • "default49": 49 colors, including one transparent entry.
  • "opaque49": 49 colors, without a transparent entry.
  • "default80": 80 colors, including one transparent entry.
  • "web216": the 216 "web-safe" colors.

Code Example(s)

A chooseColor which uses the standard "default49" palette

<tr:chooseColor id="cc0" colorData="#{requestContext.colorPalette.default49}"/>

A chooseColor which defines custom colors using inline data

<tr:chooseColor id="cc1" colorData="#{requestContext.colorPalette.default49}"

A chooseColor that is associated with a selectInputColor

<tr:inputColor id="sic1" chooseId="cc2"/>
<tr:chooseColor id="cc2" width="18"

Supported Client Events for Client Behaviors

  • click (default)
  • dblclick
  • keydown
  • keypress
  • keyup
  • mousedown
  • mousemove
  • mouseout
  • mouseover
  • mouseup


Type Phases Description
org.apache.myfaces.trinidad.event.AttributeChangeEvent Invoke Application,
Apply Request Values
Event delivered to describe an attribute change. Attribute change events are not delivered for any programmatic change to a property. They are only delivered when a renderer changes a property without the application's specific request. An example of an attribute change event might include the width of a column that supported client-side resizing.


Name Type Supports EL? Description
attributeChangeListener javax.el.MethodExpression Only EL a method reference to an attribute change listener. Attribute change events are not delivered for any programmatic change to a property. They are only delivered when a renderer changes a property without the application's specific request. An example of an attribute change events might include the width of a column that supported client-side resizing.
binding org.apache.myfaces.trinidad.component.core.input.CoreChooseColor Only EL an EL reference that will store the component instance on a bean. This can be used to give programmatic access to a component from a backing bean, or to move creation of the component to a backing bean.
colorData java.util.List Yes the list of colors for the component
customColorData java.util.List Yes the list of custom colors for the component
id String No the identifier for the component. Every component may be named by a component identifier that must conform to the following rules:
  • They must start with a letter (as defined by the Character.isLetter() method) or underscore ( _ ).
  • Subsequent characters must be letters (as defined by the Character.isLetter() method), digits as defined by the Character.isDigit() method, dashes ( - ), or underscores ( _ ). To minimize the size of responses generated by JavaServer Faces, it is recommended that component identifiers be as short as possible. If a component has been given an identifier, it must be unique in the namespace of the closest ancestor to that component that is a NamingContainer (if any).
inlineStyle String Yes the CSS styles to use for this component.
onclick String Yes an onclick Javascript handler.
ondblclick String Yes an ondblclick Javascript handler.
onkeydown String Yes an onkeydown Javascript handler.
onkeypress String Yes an onkeypress Javascript handler.
onkeyup String Yes an onkeyup Javascript handler.
onmousedown String Yes an onmousedown Javascript handler.
onmousemove String Yes an onmousemove Javascript handler.
onmouseout String Yes an onmouseout Javascript handler.
onmouseover String Yes an onmouseover Javascript handler.
onmouseup String Yes an onmouseup Javascript handler.
partialTriggers String[] Yes the IDs of the components that should trigger a partial update.

This component will listen on the trigger components. If one of the trigger components receives an event that will cause it to update in some way, this component will request to be updated too.

Separate multiple triggers with a space. e.g., partialTriggers="cmp1 cmp2"

Identifiers must account for NamingContainers. You can use a single colon to start the search from the root, or use multiple colons to move up through the NamingContainer. For example, "::" will pop out of this component's naming container (it pops out of itself if it is a naming container), ":::" will pop out of two naming containers, etc. The search for the partialTrigger begins from there. e.g., partialTriggers=":::commandButton1" the search begins for the component with id = commandButton1 after popping out of two naming containers relative to this component. To go into naming containers, you separate the naming containers with ':', e.g.,partialTriggers= "nc1:nc2:nc3:componentId".

rendered boolean Yes Default Value: true

whether the component is rendered. When set to false, no output will be delivered for this component (the component will not in any way be rendered, and cannot be made visible on the client). If you want to change a component's rendered attribute from false to true using PPR, set the partialTrigger attribute of its parent component so the parent refreshes and in turn will render this component.
shortDesc String Yes The short description of the component. This text is commonly used by user agents to display tooltip help text.
styleClass String Yes a CSS style class to use for this component.
width int Yes the width of the standard palette in cells