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deckarduk
deckarduk
Inspiring
April 19, 2018
Answered

Query regarding creating an object or list from fields on page...

  • April 19, 2018
  • 2 replies
  • 1015 views

Hi there,

I've been reading through an example in the Acrobat JS Scripting Reference regarding dialog creation.

Having worked forward from some code in the reference I've managed to generate the following dialog:

I've been able to manipulate the example to list more 'options' in the text field and change some of the buttons etc. All works fine.

What I'm working towards is listing all the form fields, on a page, as the options in the list in the dialog above.

I've found a great function for creating a list of fields, on a given page, which works perfectly. It's really useful.

function getPageFields(doc, p) {
var fields = [];
for (var i=0; i<doc.numFields; i++) {
var f = doc.getField(doc.getNthFieldName(i));
if ((typeof f.page=="number" && f.page==p) || (typeof f.page!="number" && f.page.indexOf(p)>-1)) fields.push(f.name);
}
return fields;
}
getPageFields(this, 0);

Here's where my knowledge is limited. What I'd like to do is create an object (or list, here I'm not sure) from the 'fields list' so I can load it into part of the dialog creation as shown below:

loadDefaults: function (dialog) {
  dialog.load({
  subl:
  {
  "Option 1": +1,
  "Option 2": -2,
  "Option 3": -3,
  "Option 4": -4,
  "Option 5": -5,
  "Option 6": -6,
  }
  })
  }

I've been trying to use this article (https://acrobatusers.com/forum/javascript/dialog-load-list-box-default-value/​), and information from the Scripting Ref, to try and achieve this. As yet I've not succeeded.

Please can someone help me.

Thank you.

This topic has been closed for replies.
Correct answer Thom Parker

As you've seen, the input for a listbox on an Acrobat Dialogs is an object, where each member is the text displayed in the listbox, and the value is the selection.

Here's some code that will create this input:

var oLstFlds = {};

for(var i=0;i< this.numFields:i++)

   oLstFlds[this.getNthFieldName(i)]= -1;

That's all you need, not "oLstFlds" is input for setting the values in the listbox.

dialog.load({subl:oLstFlds});

It's much easier to create complex dialogs with a dialog editor.  Like this one:

ACRODIALOGS OVERVIEW

2 replies

Thom Parker
Community Expert
Thom ParkerCommunity ExpertCorrect answer
Community Expert
April 19, 2018

As you've seen, the input for a listbox on an Acrobat Dialogs is an object, where each member is the text displayed in the listbox, and the value is the selection.

Here's some code that will create this input:

var oLstFlds = {};

for(var i=0;i< this.numFields:i++)

   oLstFlds[this.getNthFieldName(i)]= -1;

That's all you need, not "oLstFlds" is input for setting the values in the listbox.

dialog.load({subl:oLstFlds});

It's much easier to create complex dialogs with a dialog editor.  Like this one:

ACRODIALOGS OVERVIEW

Thom Parker - Software Developer at PDFScriptingUse the Acrobat JavaScript Reference early and often
deckarduk
deckardukAuthor
Inspiring
April 19, 2018

Hi Thom,

Fantastic!

Thanks for the help, that works a treat!

I did have a look at AcroDialogs, I just fancied the programming exercise to try and further my knowledge.

Thanks again Thom.

Thom Parker
Community Expert
Thom ParkerCommunity Expert
Community Expert
April 19, 2018

Excellent! Could you please mark the post as Correct Answer. Thank you.

Thom Parker - Software Developer at PDFScriptingUse the Acrobat JavaScript Reference early and often
deckarduk
deckardukAuthor
Inspiring
April 19, 2018

Kinda getting closer...

If I execute this:

function getPageFields(doc, p) {
var fields = [];
for (var i=0; i<doc.numFields; i++) {
var f = doc.getField(doc.getNthFieldName(i));
if ((typeof f.page=="number" && f.page==p) || (typeof f.page!="number" && f.page.indexOf(p)>-1)) fields.push("\"" + f.name + "\"" + ": -1");
}
return fields;
}
getPageFields(this, 0);

I get this:

"Check Box25": -1,"Check Box32": -1,"Check Box33": -1,"Check Box34": -1,"Check Box35": -1,"Check Box36": -1,"Check Box37": -1,"CheckBox27": -1,"CheckBox28": -1,"CheckBox29": -1,"Text22": -1,"Text23": -1,"Text24": -1,"Text30": -1,"Text31": -1

When I load that as below I get the numbers 0-14 in the dialog?

loadDefaults: function (dialog) {
  dialog.load({
  subl:
  theOptionsList
  })
  }

Which is correct for the number of items in the list - 15, but not for getting the field names into the dialog.

Please can someone point me in the right direction.

Thank you.

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