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Serena® Collage® 5.1.3

Chapter 3 Design-Time Component Reference

Writing the NavMap Component Body

The NavMap body defines code which you will generate for each node in the site structure,

which can include the following data about each:



The node name



The URL to the node



The node's level in the site structure (1, 2, and so forth)



The number of children nodes that the node has (0, 1, and so forth)

You can then use this data to generate the navigation links to each node, either in the

body of the component itself, or by evaluating a JavaScript function which generates the

links.

The NavMap component repeats the body for every node in the site structure. For

example, if the body is simply set up to display the name of a node, the name of each

node in the structure will display.

The NavMap component body is very flexible. In its simplest form, you can define simple

HTML which Collage will generate for each node in a site structure. However, to take

better advantage of its benefits, you can also use the body of the component to generate

JavaScript methods which can automatically pass information about all nodes in a site

structure to a JavaScript navigation menu. See "NavMap Example: Passing Node Values

into JavaScripts" on page 100 for more information.

Generating Node Level Numbers

To generate the number of the site structure level to which the node belongs, include the

$node.level

data macro field. The

$node.level

returns a number that corresponds to

the level in the structure hierarchy, starting with

. You can use this value to define

statements, in your navigation script, which place lower level items further down in your

tree. For example, you may write a statement that places all links for which the

$node.level

value is

at the top at the hierarchy, and cascade the remaining items in

the menu based on their level value (

, and so forth).

code

Path in Collage to the

nexusComponents.jar file,

such as

"/System/

Components/

nexusComponents.jar"

The archive where the component class file is stored. By

default, this is stored in:

root

/System/Components/

nexusComponents.jar

. You can also set this property to:

code="$nexusComponents"

which will resolve to the

correct path.

sitestructure

Path to the site structure file Defines the absolute path, from the root of the project, to

the site structure file (.site) that Collage will use to

generate the node information when you preview or

deploy the file. For example:

sitestructure="/Website/Website.site"

Property Value Description

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