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A host application is the application
in which a form exists at any given time.
For example,
if you are using Forms to render a form in HTML format, then during
the pre-rendering process the host application is Forms.
Once you render a form and view it in a client application such
as Acrobat, Adobe Reader, or an HTML browser, then the client application
becomes the host application.
Designer includes a scripting model that provides scripting properties
and methods for directly interfacing with a hosting application.
For example, you can use the properties and methods in the host
scripting model to provide PDF page navigation actions in Acrobat
or Adobe Reader, or you can use the
importData
method
to load data into your form.
You can reference the host script model syntax on any valid scripting
event for form design objects using the following syntax for both
FormCalc and JavaScript:
xfa.host.
property_or_method
Host scripting model properties and methods
Using the host scripting model properties and methods,
you can retrieve information and execute actions that are not otherwise
accessible through calculations and scripts. For example, you can
retrieve the name of the host application (such as Acrobat), or
advance the current page on an interactive form. The following table
lists the properties and methods that are available for the host scripting
model.
For more information about the host scripting model properties
and methods, see the
Developer Center
.
Comparing the host scripting model functionality
This table lists the
Designer host scripting model properties and methods, and compares
them to the equivalent expressions in the JavaScript Object Model
in Acrobat.
For more
information about the host scripting model properties and methods,
see
Designer Help
, or see the
Scripting Reference
.
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Host scripting model properties and methods
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JavaScript Object Model from Acrobat equivalent
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xfa.host.appType
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app.viewerType
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xfa.host.beep( [ INTEGER param ] )
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app.beep([ nType ])
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xfa.host.currentPage
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doc.pageNum
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xfa.host.exportData([ STRING param1 [,
BOOLEAN param2 ] ])
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doc.exportXFAData(cPath [, bXDP ])
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xfa.host.gotoURL( STRING param1 )
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doc.getURL(cURL, [ bAppend ])
or
app.launchURL(URL);
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xfa.host.importData( [ STRING param ] )
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doc.importXFAData(cPath)
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xfa.host.language
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app.language
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xfa.host.messageBox(STRING param1 [,
STRING param2 [, INTEGER param3 [,
INTEGER param4 ] ] ])
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app.alert(cMsg [, nIcon [, nType [,
cTitle ] ] ])
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xfa.host.name
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none
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xfa.host.numPages
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doc.numPages
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xfa.host.pageDown()
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doc.pageNum++
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xfa.host.pageUp()
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doc.pageNum--
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xfa.host.platform
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app.platform
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xfa.host.print(BOOLEAN param1, INTEGER
param2, INTEGER param3, BOOLEAN
param4, BOOLEAN param5, BOOLEAN
param6, BOOLEAN param7, BOOLEAN
param8)
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doc.print([ bUI [, nStart [, nEnd [,
bSilent [, bShrinkToFit [,
bPrintAsImage [, bReverse [,
bAnnotations ] ] ] ] ] ] ] ])
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xfa.host.resetData( [ STRING param ] )
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doc.resetForm([ aFields ])
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xfa.host.response( STRING param1 [,
STRING param2 [, STRING param3 [,
BOOLEAN param4] ] ])
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app.response(cQuestion [, cTitle [,
cDefault [, bPassword ] ] ])
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xfa.host.setFocus( STRING param )
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field.setFocus()
(Deprecated)
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xfa.host.title
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doc.title
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xfa.host.variation
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app.viewerVariation
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xfa.host.version
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app.viewerVersion
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