colorpicker

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A palette of colors from which a user may select by clicking on one of the grid cells.

Attributes: disabled, color, onchange, preference, tabindex, type

Properties: accessibleType, color, disabled, open, tabIndex, value

Examples

Image:XUL_REF_rgb.gif

<colorpicker/>

Attributes

disabled: Type: boolean; Indicates whether the element is disabled or not. If this element is set to true the element is disabled. Disabled elements are usually drawn with grayed-out text. If the element is disabled, it does not respond to user actions, it cannot be focused, and the command event will not fire.; Visible controls have a disabled property which, except for menus and menuitems, is normally preferred to use of the attribute, as it may need to update additional state.

color: Type: color string; The currently selected color. This is modified when the user selects a color. You can assign a string of the form #RRGGBB to this property to change the selected color.

Overview

An onchange attribute is an event listener to the object for the Event change. A change event is fired in different ways for different XUL Input Elements as listed below:

onchange: Type: script code

TextBox	When Enter key is pressed
Radio/Check Box	When the state is changed
Select List	When the selected item is changed

What is accessible

The script context at this point can only access the following things:

Global Values/Functions i.e. window, document, or any of the functions/objects/variables bound to the window object
Event object

Example

<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>

<window
    id="findfile-window"
    title="Find Files"
    orient="horizontal"
    xmlns="https://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
  <script type="text/javascript">
  function myFunction(e){
    /*
      Do something cool here or just say the below
    */
    alert(e.target.nodeName);
  }
  </script>
  <textbox id="find-text" onchange="return myFunction(event);"/>
</window>

preference: Type: id; Connects the element to a corresponding preference. This attribute only has any effect when used inside a prefwindow. More information is available in the Preferences System article.

tabindex: Type: integer; The tab order of the element. The tab order is the order in which the focus is moved when the user presses the "tab" key. Elements with a higher tabindex are later in the tab sequence.

type: Type: string; If this attribute is not present, the colorpicker is displayed inside the window. If this is set to the text button, the colorpicker is displayed as a button. When the user clicks the button, a popup appears for the user to select a color.

Properties

accessibleType: Type: integer; A value indicating the type of accessibility object for the element.

color: Type: color string; The currently selected color. This is modified when the user selects a color. You can assign a string of the form #RRGGBB to this property to change the selected color.

disabled: Type: boolean; Gets and sets the value of the disabled attribute.

open: Type: boolean; Returns true if the popup for a button-type colorpicker is open. Set this property to true to open the popup or false to close the popup.

tabIndex: Type: integer; Gets and sets the value of the tabindex attribute.

value property gets and sets color attribute

Methods

Inherited Methods
addEventListener(), appendChild(), blur, click, cloneNode(), compareDocumentPosition, dispatchEvent(), doCommand, focus, getAttribute(), getAttributeNode(), getAttributeNodeNS(), getAttributeNS(), getBoundingClientRect(), getClientRects(), getElementsByAttribute, getElementsByAttributeNS, getElementsByClassName(), getElementsByTagName(), getElementsByTagNameNS(), getFeature, getUserData, hasAttribute(), hasAttributeNS(), hasAttributes(), hasChildNodes(), insertBefore(), isDefaultNamespace(), isEqualNode, isSameNode, isSupported(), lookupNamespaceURI, lookupPrefix, normalize(), querySelector(), querySelectorAll(), removeAttribute(), removeAttributeNode(), removeAttributeNS(), removeChild(), removeEventListener(), replaceChild(), setAttribute(), setAttributeNode(), setAttributeNodeNS(), setAttributeNS(), setUserData

Interfaces: nsIDOMXULControlElement

Bugs

The onchange Event only fires if Attribute type is set to "button". You may use onclick when you are working with a plain colorpicker and need the currently selected color for example to display in a <textbox>.