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A spacer that is used in layout and rendered as a transparent image.
Easily used as a transparent layout spacer
Horizontal or vertical spacing is managed by an attribute
Easily customizable sizes parameters
Table 6.497. rich : spacer attributes
| Attribute Name | Description |
|---|---|
| binding | The attribute takes a value-binding expression for a component property of a backing bean |
| height | The height of the spacer defined in pixels. Default value is "1px". |
| id | Every component may have a unique id that is automatically created if omitted |
| onclick | HTML: a script expression; a pointer button is clicked |
| ondblclick | HTML: a script expression; a pointer button is double-clicked |
| onkeydown | HTML: a script expression; a key is pressed down |
| onkeypress | HTML: a script expression; a key is pressed and released |
| onkeyup | HTML: a script expression; a key is released |
| onmousedown | HTML: script expression; a pointer button is pressed down |
| onmousemove | HTML: a script expression; a pointer is moved within |
| onmouseout | HTML: a script expression; a pointer is moved away |
| onmouseover | HTML: a script expression; a pointer is moved onto |
| onmouseup | HTML: script expression; a pointer button is released |
| rendered | If "false", this component is not rendered |
| style | CSS style(s) is/are to be applied when this component is rendered |
| styleClass | Corresponds to the HTML class attribute |
| title | HTML: An advisory title for this element. Often used by the user agent as a tooltip |
| width | The width of the spacer defined in pixels. Default value is "1px". |
Table 6.498. Component identification parameters
| Name | Value |
|---|---|
| component-type | org.richfaces.spacer |
| component-class | org.richfaces.component.html.HtmlSpacer |
| component-family | org.richfaces.spacer |
| renderer-type | org.richfaces.SpacerRenderer |
| tag-class | org.richfaces.taglib.SpacerTag |
To create the simplest variant on a page use the following syntax::
Example:
...
<rich:spacer/>
...
Example:
import org.richfaces.component.html.HtmlSpacer;
...
HtmlSpacer mySpacer = new HtmlSpacer();
...
<rich:spacer> is a simple layout component which represents a transparent spacer. Thus, the main attributes that define its style are "style" and "styleClass".
In addition, the attributes are responsible for the component size: "width" and "height".
Moreover, to add e.g. some JavaScript effects, events defined on it are used.
"onmouseover "
"onclick "
"onmouseout "
etc.
On the component generation, the framework presents a default rich-spacer class in "styleClass" of a generated component, i.e. in order to redefine appearance of all spacers at once, it's necessary to redefine this class in your own CSS (replacing in the result properties defined in a skin with your own).
To define appearance of the particular spacer, it's possible to write your own CSS classes and properties in the component style attributes ( "style", "styleClass" ) modifying component property.
On the component LiveDemo page you can see the example of <rich:spacer> usage and sources for the given example.