Creating Effective JavaHelp

Appendix B. Lightweight Component Tags

During JavaHelp development, you can add code to certain help topic (HTML) files to employ the pop-up and secondary window lightweight components.

These components are discussed in Chapter 6. This appendix provides you with a quick reference to the elements and attributes that specify the components.

Pop-up and Secondary Windows

Example:

<object classid="java:com.sun.java.help.impl.JHSecondaryViewer">
    <param name="viewerActivator" value="javax.help.LinkLabel">
    <param name="viewerStyle" value="javax.help.SecondaryWindow">
    <param name="viewerLocation" value="400,200">
    <param name="viewerSize" value="600,300">
    <param name="text" value="Runway markings">
    <param name="textFontSize" value="medium">
    <param name="textFontWeight" value="plain">
    <param name="id" value="sec.runwaymarkings">
</object>

Elements and Attributes

Tag	Attribute	Required	Description
<object>		Yes	Element that defines a pop-up or secondary window. Contains one or more <param> subelements to specify the window’s properties.
	classid	Yes	Specifies the Java class that handles the display of the pop-up or secondary window. For Sun’s default pop-up and secondary window components, use: java:com.sun.java.help.impl. JHSecondaryViewer.
<param>		Yes	Specifies, through its name and value attributes, one property for a pop-up or secondary window. This is a subelement of <object>.
	name	Yes	Specifies a property to be set. Refer to the next table for the properties’ names. ...