Table of Contents Model Builder

The Model Builder subcomponent is used by Table of Contents API to convert a flat list of headings into a hierarchical list suitable for the Table of Contents.

Do not use this component directly. The information on this page should be use when customizing Table of Contents.

See Also
Table of Contents API

Table of Contents Heading Calculator

Supported Events	none
Methods	`modelLevelFn` Used to determine how to nest heading. `toModel` Use to actually build the nested model.
Options	none
Subcomponents	`headingCalculator` Calculates the heading level.

Methods

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This component has public methods that can be invoked by integrators as necessary. These methods are typcially implemented as Invokers, which resolve their arguments from the environment at invocation time. These methods can be configured by the integrator if necessary: arguments can be changed, and in fact the entire implementation function can be replaced by a custom function (though it is likely rare that this would be necessary or desirable).

Configuration of invokers should be carried by creating a grade, using the following pattern:

fluid.defaults("<new name of overriding grade>", {
    gradeNames: ["<name of grade being overridden", "autoInit"],
    invokers: {
        <invokerName>: {
            funcName: <implementation function name>,
            args: [<array of argument specifications>]
        }
    }
});

Example of overriding an invoker

The Infusion Pager component has a method called {{acquireDefaultRange}} which, by default, simply returns the total range. An integrator may wish to override this using their own custom function:

fluid.defaults("my.pager", {
    gradeNames: ["fluid.pager", "autoInit"],
    invokers: {
        acquireDefaultRange: {
            funcName: "my.pager.acquireDefaultRange
        }
    }
});

modelLevelFn

Description	Used by the `toModel` method to decide how deeply to nest a heading in the Table of Contents. The default implementation creates a nested hierarchy that uses incremental depths, independent of the actual heading levels.
Parameters	modelLevel An array used to keep track of actual hierarchy levels, when those are being preserved. subHeadings An array used to keep track of adjusted, gradual headings, when gradual nesting is used.
Configurable	yes Default implementation: `fluid.tableOfContents.modelBuilder.gradualModelLevelFn`
Notes	The Model Builder also defines an alternative implementation: `fluid.tableOfContents.modelBuilder.skippedModelLevelFn`, which produces a hierarchy that exactly reflects heading levels.

toModel

Description	Used by the Model Builder to convert a flat list of headings into a hierarchical list using modelLevelFn.
Parameters	headingInfo A flat array of objects describing all headings to be included in the table of contents modelLevelFn The function to use to determine the nesting of the table of contents.
Configurable	yes Default implementation: `"fluid.tableOfContents.modelBuilder.toModel"`.
See also	`modelLevelFn`

Subcomponents

Subcomponents can be configured though the parent component's components option using the following pattern:

parent.component.name(".myContainer", {
    components: {
        <subcomponentName>: {
            options: {
                <subcomponent options>
            }
        }
    }
});

headingCalculator

Description	The `headingCalculator` subcomponent calculates and returns the heading level.
Default implementation	`fluid.tableOfContents.modelBuilder.headingCalculator`

Infusion Documentation

This documentation is currently being moved to our new documentation site.

Please view or edit the documentation there, instead.