Difference between revisions of "Hide Next button in n seconds"

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== Challenge  ==
 
== Challenge  ==
  
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In order to not allow respondent click on the Next button in a period of t<br>As a questionnaire creator<br>I want to hide the Next button in some seconds&nbsp;
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In order to not allow respondent click on the Next button in a period of time
  
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== Solution  ==
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As a questionnaire creator
  
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*Create a text grid question (Q3)
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I want to hide the Next button in some seconds&nbsp;
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*Create a dummy single question with the same answer options as we want to show inside the text grid question (Q3x)
 
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*Add javascript code to the text grid question to include the single question inside
 
  
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== Code ==
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== Example ==
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[[Image:HideNextButton1.jpg]]
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<br>
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[[Image:HideNextButton2.jpg]]
  
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&lt;source lang="javascript"&gt; var SingleQuestion = { onInit: function(_label, _text, _answerOptionValues, _answerOptionTexts, _selectedValue) { this.label = "QUESTION." + _label; this.text = _text; this.aoValues = _answerOptionValues; this.aoTexts = _answerOptionTexts; this.selectedValue = _selectedValue; }, getHTML: function() { var n = this.aoValues.length; var list = $("&lt;select&gt;").width("400px"); var selected=""; for(var i=0; i&lt;n; i++) { if (this.aoValues[i] == this.selectedValue) selected = "true"; else selected = ""; list.append($("&lt;option&gt;") .val(this.aoValues[i]) .text(this.aoTexts[i]) .attr("selected", selected) ); }
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== Solution  ==
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                //handle change event to change the value of the single question
 
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list.change( function() { $("input:hidden").each( function(i) { if ($(this).attr("name") == SingleQuestion.label) $(this).val(list.val());
 
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} );
 
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} ); var row = $("&lt;tr&gt;"); row.append($("&lt;td&gt;").text(this.text).addClass("grid_subquestion_text grid_subquestion_odd")); row.append( $("&lt;td&gt;").addClass("grid_subquestion_odd") .append(list) ) row.append($("&lt;input type = \"hidden\"&gt;").attr("name", this.label).val(""));
 
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return row; } }
 
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quest.onInit = function() { var n = 8; var aoValues = new Array(n); var aoTexts = new Array(n); for (var i=0; i&lt;n; i++) { aoValues[i] = i+1; }
 
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        //answer option texts
 
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aoTexts[0] = "Ejer"; aoTexts[1] = "Adm. direktør"; aoTexts[2] = "Økonomichef"; aoTexts[3] = "Personalechef"; aoTexts[4] = "Bogholder / økonomimedarbejder"; aoTexts[5] = "Medhjælpende ægtefælle"; aoTexts[6] = "Andet, notér på næste side"; aoTexts[7] = "Ved ikke";
 
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        //get the previous selected value
 
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var single_selectedValue = "{{Q3x.Value}}"; SingleQuestion.onInit("Q3x","Titel", aoValues, aoTexts, single_selectedValue);
 
  
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        //append the single question inside the grid
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*In questionnaire template editor, choose the question I want to hide the Next button and then go to the Properties - Edit question properties - Language dependent - Select javascript property
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*Override quest.onInit function.
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*In that function, check if the Next button exists.
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*If it doesn't exist, do nothing, else disable the Next button, set the time out to number of seconds I want to hide the button, then show the button again.
  
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$(".grid_inner").append(SingleQuestion.getHTML());  
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[[Image:HideNextButton Code.jpg]]
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== Code  ==
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<source lang="javascript">
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quest.onInit = function()
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{
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var secsTimeout = 10;
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if ( !document.getElementsByName('next') || document.getElementsByName('next').length == 0 )  
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// next button not available
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return;
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document.getElementsByName('next')[0].style.display='none';
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setTimeout("document.getElementsByName('next')[0].style.display='';", secsTimeout*1000);
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}
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</source>
  
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$("input:text").width("400px"); } &lt;/source&gt;
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== Source ==
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Questionnaire Resource Id on cg site: 159730

Latest revision as of 06:58, 2 February 2012

Challenge

In order to not allow respondent click on the Next button in a period of time

As a questionnaire creator

I want to hide the Next button in some seconds 

Example

HideNextButton1.jpg
HideNextButton2.jpg

Solution

  • In questionnaire template editor, choose the question I want to hide the Next button and then go to the Properties - Edit question properties - Language dependent - Select javascript property
  • Override quest.onInit function.
  • In that function, check if the Next button exists.
  • If it doesn't exist, do nothing, else disable the Next button, set the time out to number of seconds I want to hide the button, then show the button again.

HideNextButton Code.jpg

Code

quest.onInit = function()
{
	var secsTimeout = 10;
	if ( !document.getElementsByName('next') || document.getElementsByName('next').length == 0 ) 
		// next button not available
		return;
	document.getElementsByName('next')[0].style.display='none';
	setTimeout("document.getElementsByName('next')[0].style.display='';", secsTimeout*1000);
}

Source

Questionnaire Resource Id on cg site: 159730

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