I'm trying to figure out a way to automatically randomize slider positions (type range) when I come across them on a webpage (mostly on web survey forms like Qualtrics or Surveymonkey). I would like to add this slider randomization to an already-existing autofill that I demonstrated below. But first, here are a couple examples of the type of sliders I would like to automate (with CSS/HTML):
&
Currently, I'm using the following script to randomly autofill survey forms on page load (radio buttons, text fields, etc). I would like to add slider randomization in the same vein to this script:
// ==/UserScript==
(function() {
// Save a random number
var modifier = Math.floor(Math.random() * 9000000);
// Create a fake user data
var user = {
pass : modifier + "",
mail : modifier + '#Example.com'
};
// Array to save data
var save_data = [];
// Check window for tags
function check(win, tagName) {
try {
// Get tags
tagName = win.document.getElementsByTagName(tagName)
} catch (e) {
// Not found - Empty array
tagName = []
}
// For each tag
for (i = 0; i < tagName.length; i++) {
// This tag
var tag = tagName[i];
// Exclude read-only or desabled
if (tag.readOnly || tag.disabled) continue;
// Get tag values
var name = tag.name;
var type = tag.type;
var value = tag.value;
// If Check box
if ('checkbox' == type){
tag.checked = Math.random() > .5;
}
// If password
else if ('password' == type){
value = user.pass;
// Update tag value
tag.value = value;
}
// If text
else if ('text' == type) {
// If mail
if(name.match(/mail/i)){
value = user.mail;
}
// Update tag value
tag.value = value;
}
// If radio
else if ('radio' == type) {
// If data don't exist
if (!save_data[name]) {
save_data[name] = 1;
}else{
save_data[name] ++;
}
// Check it with probabilities (depending on the length)
tag.checked = Math.random() < (1 / save_data[name]);
}
// If select
else if (type.match(/^select/)){
// Set a random options
tag.selectedIndex = Math.random() * (tag.options.length - 1) + 1;
}
}
// Try to set focus to the input
if (tag) try {
tag.focus()
} catch (e) {}
}
function recursive(win) {
check(win, 'password');
check(win, 'select');
check(win, 'input');
// For each frame on page
for (var i = 0; i < win.frames.length; i++) {
// Check all frames inside
recursive(win.frames[i])
}
}
recursive(window);
}());
Since I know that sliders are of the input type range, my added code would need to start with something that looks like this:
else if ('range' == type) {
if (!save_data[name]) {
save_data[name] = 1;
}else{
save_data[name] ++;
}
tag.checked = Math.random() < (1 / save_data[name]);
}
As you can see, I am basing this code off the radio button portion of the script. Unfortunately, this doesn't seem to work, and I am currently unable to find the syntax for how to select a new slider position or initiate the movement of a slider. I assume it works differently than a clickable check box or radio button. I know that sliders have ranges generally specified in the CSS/HTML, so this will obviously need to be accoutned for. Any and all help would be absolutely wonderful. Thanks in advance.
From w3school:
Change the value of a slider control:
document.getElementById("myRange").value = "75";
Tweaked it a bit to make it random (if your input range is between 0 and 100):
document.getElementById("myRange").value = Math.floor(Math.random() * 100);
Related
I’m facing a small issue in JavaScript. I need to to make a code stop and do nothing for a while. I tried setTimeout, but it only scheludes the function, continues in executing the code and then comes back. I really need to wait for the user to put some value in the input field and then press the button. The sleep function on the beginning of my code works, but the code somehow stops showing my html input form and button. I can’t figure out why. I also can’t use onclick attribute on the submit button, because of the same problem. Does someone know what can be the problem here??
var returning = 0; // variable for deciding which part of function to use
function sleep(milliseconds) { // sleep method found here on stackoverflow
var start = new Date().getTime();
for (var i = 0; i < 1e7; i++) {
if ((new Date().getTime() - start) > milliseconds){
break;
}
}
}
function acceptValue(){
// show an input field with button next to it
if (returning == 0) {
var co = document.createElement("input"); // show input field and set attributes
var kam = document.getElementById("telo");
var indexId = 0;
while(document.getElementById("pole" + indexId) != null) {
indexId++; // look for closest unused id name
}
co.setAttribute("id", "pole" + indexId);
kam.appendChild(co);
var co1 = document.createElement("input");
var kam1 = document.getElementById("telo");
var indexId1 = 0;
while(document.getElementById("cudlik" + indexId1) != null) {
indexId1++; // look for closest unused id name
}
co1.setAttribute("id", "cudlik" + indexId1); // show button and set attributes
co1.setAttribute("type", "submit");
co1.setAttribute("value", ">");
co1.setAttribute("onclick", "vraceni()");
kam1.appendChild(co1);
console.log(document);
document.getElementById("telo").appendChild(document.createElement("br"));
returning = 1;
acceptValue();
} else if (vrat == 1) {
sleep(500);
acceptValue();
}
} else {
var indexPole = 0;
while (document.getElementById("pole" + indexPole) != null) {
indexPole++;
}
vrat = 0;
return document.getElementById("pole" + (indexPole - 1)).value; // return the value from last shown input field
}
}
function returnFunc() {
vrat = 2; // called from html button
}
Thanks,
Adam Hendrych
I think the feature you are attempting to create here may need some re-architecting. It feels very strange to have all these while loops and sleep tricks in place.
What you describe wanting this code to do is basically the default behavior of how inputs and buttons work. A simple form containing an input and submit button, with an onsubmit handler on the form, should meet the "accept input and fire an action when the button is pressed" requirement.
An example
How do I use Jquery to find the last checked/unchecked item and so that I can add or remove them from other two listboxs?
I am creating a dropdown listbox(excludedPeople) with multiselect checkbox with two other listboxs(PrimaryPerson,secondaryPerson) in same form. All three list box are having same set of data during form load. If any item in excludedPeople is selected(checked), I need to remove that item from PrimaryPerson and secondaryPerson and vise-versa.
ASP.Net MVC multiselect Dropdown Listbox code:
#Html.ListBoxFor(m => m.ExcludedPeople, Model.AllPeopleListViewModel,
new { #class = "chkDrpDnExPeople" , #multiple = "multiple"})
jQuery code:
$(".chkDrpDnExPln").change(function ()
{
console.log("Trigger" + $(this).val()); //this code gets the list of all items selected. What I need is to log only last selected/unselected item's val & text into the console.
});
Any help is appreciated. Ask questions if any.
Well, after waiting for 2 days I made a solution myself and posting it here so that others can make use of it.
I made this code for multiselect dropdown listbox with checkboxes in each list item. I expect this to work on similar controls like checked listbox but haven't tested it.
I followed register control and get notified by event so the usage can be made seamless without getting into details.
Usage:
1) include the "JQuery based Library" part into your project as shared or same js script file.
2) Use the below approach to consume the functionality. The event should get you the changed values when the control selection is changed.
RegisterSelectedItemChangeEvent("chkDrpDnctrl#1");
RegisterSelectedItemChangeEvent("chkDrpDnctrl#2");
RegisterSelectedItemChangeEvent("chkDrpDnctrl#3");
$(".chkDrpDnctrl").on("OnSelectionChange", function (e,eventData)
{
var evntArgs = {
IsDeleted: false,
IsAdded: false,
AddedValues: [], //null if no change/None. Else changed value.
DeletedValues: [] //null if no change/None. Else changed value.
};
var source = e;
evntArgs = eventData;
var elementnm = $(this).attr("id");
if (evntArgs !== "undefined" && elementnm != "")
{
if (evntArgs.IsAdded == true)
{
//if excluded checked then remove.
for (var i = 0; i < evntArgs.AddedValues.length; i++)
{
PerformAction (control#, evntArgs.AddedValues[i]);
}
}
if (evntArgs.IsDeleted == true)
{
//if excluded checked then remove.
for (var i = 0; i < evntArgs.DeletedValues.length; i++)
{
PerformAction (control#, evntArgs.AddedValues[i]);
}
}
}
});
JQuery based Library:
function RegisterSelectedItemChangeEvent(selector) {
var dropdownElementRef = selector;
//Intializes the first time data and stores the values back to control. So if any of the checkboxes in dropdown is selected then it will be processe and added to control.
$(dropdownElementRef).data('lastsel', $(dropdownElementRef).val());
var beforeval = $(dropdownElementRef).data('lastsel');
var afterval = $(dropdownElementRef).val();
//storing the last value for next time change.
$(dropdownElementRef).data('lastsel', afterval);
//get changes details
var delta = GetWhatChanged(beforeval, afterval);
//stores the change details back into same object so that it can be used from anywhere regarless of who is calling it.
$(dropdownElementRef).data('SelectionChangeEventArgs', delta);
//prepares the event so that the same operation can be done everytime the object is changed.
$(dropdownElementRef).change(function () {
var beforeval = $(dropdownElementRef).data('lastsel');
var afterval = $(dropdownElementRef).val();
//storing the last value for next time change.
$(dropdownElementRef).data('lastsel', afterval);
//get changes details
var delta = GetWhatChanged(beforeval, afterval);
//stores the change details into same object so that it can be used from anywhere regarless of who is calling it.
$(dropdownElementRef).data('OnSelectionChangeEventArgs', delta);
//fires the event
$(dropdownElementRef).trigger('OnSelectionChange', [delta]);
//$.event.trigger('OnSelectionChange', [delta]);
});
var initdummy = [];
var firstval = GetWhatChanged(initdummy, afterval);
//fires the event to enable or disable the control on load itself based on current selection
$(dropdownElementRef).trigger('OnSelectionChange', [firstval]);
}
//assume this will never be called with both added and removed at same time.
//console.log(GetWhatChanged("39,96,121,107", "39,96,106,107,109")); //This will not work correctly since there are values added and removed at same time.
function GetWhatChanged(lastVals, currentVals)
{
if (typeof lastVals === 'undefined')
lastVals = '' //for the first time the last val will be empty in that case make both same.
if (typeof currentVals === 'undefined')
currentVals = ''
var ret = {
IsDeleted: false,
IsAdded: false,
AddedValues: [], //null if no change/None. Else changed value.
DeletedValues: [] //null if no change/None. Else changed value.
};
var addedvals;
var delvals;
var lastValsArr, currentValsArr;
if (Array.isArray(lastVals))
lastValsArr = lastVals;
else
lastValsArr = lastVals.split(",");
if (Array.isArray(currentVals))
currentValsArr = currentVals;
else
currentValsArr = currentVals.split(",");
delvals = $(lastValsArr).not(currentValsArr).get();
if (delvals.length > 0)
{
//console.log("Deleted :" + delvals[0]);
for (var i = 0; i < delvals.length; i++)
{
ret.DeletedValues.push(delvals[i]);
}
ret.IsDeleted = true;
}
addedvals = $(currentValsArr).not(lastValsArr).get();
if (addedvals.length > 0)
{
//console.log("Added:" + addedvals[0]);
for (var i = 0; i < addedvals.length; i++)
{
ret.AddedValues.push(addedvals[i]);
}
ret.IsAdded = true;
}
return ret;
};
On my website, users can click on some text to open up a Modal. This Modal allows users to choose a bunch of toppings to add to their Pizza.
Through Javascript, I add each selected topping to an array and change the text display to match their selected toppings. This more or less works, but the problem is for some reason, whenever they add a topping, it is added to ALL arrays, not just the item it's selected for. Can someone help me find why this is happening?
// Open Toppings Modal
$(document).ready(function() {
var count = -1
var tplist = []
$(".order").each(function(){
count += 1
tplist.push([])
var listeners = 0
setModal(count, tplist, listeners)
});
function setModal(count, tplist, listeners) {
$("#openModal" + count).click(function(){
console.log("clicked")
$("#toppingModal" + count).modal()
if (listeners == 0) {
listeners += 1
$("input[type='checkbox']").change(function() {
// TODO: Fix Bug
// Adding to all javascript lists
if (this.checked) {
tplist[count].push($(this).val());
console.log(tplist)
}
else {
ele = $(this).val();
pos = $.inArray(ele, tplist[count])
if ( ~pos ) tplist[count].splice(pos, 1);
}
// Change text to list
if (tplist[count].length > 0) {
$("#openModal" + count).text(tplist[count])
}
else {
$("#openModal" + count).text("Select Toppings")
}
})
}
});
};
});
I am suspecting your $("input[type='checkbox']").change(function() {} is called for every model. Try setting count number somewhere when you click select topping and compare inside $("input[type='checkbox']").change(function() {} to prevent adding of toppings in all arrays
First, please take a look at my fiddle.
I'm trying to figure out a clean way of making the price next to each item change when any item is selected (in that group, you can image that there will be graphics cards etc in a different section which also will need the same functionality).
If its positive I need the class to be .positive and vice versa, and if the item is selected (+0) then the price difference wont be displayed.
This will also be used on checkbox's.
Non-working example.
You'll want to compare each selected item with items having the same name. In the .each() loop in CalculatePrice(), pass the checked item to this function:
function CalculateDiffs(item) {
var selectedPrice = +item.data("price");
item.siblings(".item_price").text("");
$(".calculation-item[name='"+item.attr("name")+"']").not(item).each(function(){
var price = +$(this).data("price");
var diff = (price-selectedPrice).toFixed(2);
if (diff >= 0) {
diff = "+"+diff;
}
$(this).siblings(".item_price").toggleClass("negative", diff < 0).text(diff);
});
}
As for checkboxes, the above function will take care of hiding the price when it is checked. To display the prices for unchecked checkboxes:
$(".calculation-item:checkbox:not(:checked)").each(function(){
$(this).siblings(".item_price").text("+"+$(this).data("price"));
});
Or, if you want to display the price of a checked checkbox as negative, use this instead:
$(".calculation-item:checkbox").each(function(){
var diff = (this.checked ? "-" : "+") + $(this).data("price");
$(this).siblings(".item_price").toggleClass("negative",this.checked).text(diff);
});
http://jsfiddle.net/gilly3/HpEJf/8/
Actually it's pretty straight forward, all you'll need to do is calculate the difference between the selected price and the price of all the options in the list. Eg, something like this:
$(".calculation-item").each(function(index) {
var my_cost = base_price + $(this).data("price");
var difference = Math.round(my_cost - base_cost);
});
I've created a working jsFiddle for you here: http://jsfiddle.net/HpEJf/6/. You'll need to implement decimal rounding etc but this should put you on the right track :)
If my understanding is correct, you want to display the cost difference from the previously selected radio button and the currently selected radio button.
To do that you need to keep track of the previously selected button. The only way I know of to do that is to set a variable outside the clickhandler scope to keep track of it and update the element in the clickhandler.
The rest is fairly straightforward. I updated your jsFiddle with an example of how to do it. The relevant code is below:
Adding at top of script:
//global for last checked/selected radio
var lastSelection = $(".calculation-item:checked");
//clear existing price diffs set by markup
$('span.processor_price').text('');
Added another function:
function priceDifference(oldPrice, newPrice) {
var difference = {
'cssClass': '',
'inCost': '0'
};
var fixedDiff = '';
var diff = newPrice - oldPrice;
diff = Math.ceil(Math.abs(diff * 100)) / 100;
fixedDiff = diff.toString();
if (newPrice < oldPrice) {
difference.cssClass = 'negative';
difference.inCost = '-' + fixedDiff;
} else if (newPrice > oldPrice) {
difference.cssClass = 'positive';
difference.inCost = '+' + fixedDiff;
}
/* else {
* must be the same, no reason for this block
* as the default empty string will suffice
* as will the cost difference of 0
}*/
return difference;
}
And changed your click handler to:
$(".calculation-item").click(function() {
var difference = {};
if (lastSelection) {
//get difference
difference = priceDifference($(lastSelection).data("price"), $(this).data("price"));
//change class
$(this).siblings('span.processor_price').addClass(difference.cssClass).text(difference.inCost);
$(lastSelection).siblings('span.processor_price').removeClass('positive').removeClass('negative').text('');
if (lastSelection !== this) {
lastSelection = this;
}
} else {
lastSelection = this;
}
CalculatePrice();
});
I'm trying to disable a button, hide a select list & show some text once a button is clicked... because of how long the javascript can take I am using timeouts to prevent the browser locking & the browser ending it prematurely or presenting a warning... however the code I have doesn't seem to be hiding/disabling/showing the elements once the button is clicked.
Edit: I have confirmed that the elements ARE getting hidden & then reshown, however they are being reshown too early.... the javascript hasn't finished doing what it's doing & they are reshown almost instantly after they are hidden.
Edit 2: Fixed it by moving the code that reshows the select list etc from the "addCatsSICMain" function to the "addCatsSIC" function as so..
if (spot < cats.options.length) {
other code here...
} else {
reshow select list etc code here
}
Here is the code:
This first function is the one that is called once the button is clicked.
function addCatsSICMain() {
// Set elements
var addBtn = document.getElementById('add');
var cat_sel = document.getElementById('cat_sic_sel_wrapper');
var addWait = document.getElementById('addWait');
// Disable add button
addBtn.disabled = true;
// Hide selected list
cat_sel.style.display = 'none';
// Show waiting text
addWait.style.display = 'block';
// Use a timeout function so button can be hid/show when we want successfully & not on function completion
setTimeout(function(){
// Add selected cats
addCatsSIC(0);
// Reshow selected list, reenable add button & hide wwaiting text
addWait.style.display = 'none';
cat_sel.style.display = 'block';
addBtn.disabled = false;
}, 10);
}
function addCatsSIC(spot) {
// Set the search results box
var cats = document.getElementById('cat_sic_list');
// Set the selected categories list that we are adding to..
var sel_cats = document.getElementById('cat_sic_sel');
// Set selcted counter var
var sel_count = 0;
// Set category add failed var
var failed = 0;
// Set batch size for looping
var batchSize = 50;
// Still more to do?
if (spot < cats.options.length) {
// Loop through categories from the search results select box
for (var i = spot; i < spot + batchSize && i < cats.options.length; i++) {
// Check if the cat is selected
if (cats.options[i].selected == true) {
// Set this category's values to some variables
var cat_id = cats.options[i].getAttribute('value');
var cat_name = cats.options[i].text;
if (checkCatSICAdd(cat_id) === false) {
// Now we create the new element
var new_option = document.createElement('option');
// Add attribute
new_option.setAttribute('value',cat_id);
// Create text node
var new_text_node = document.createTextNode(cat_name);
// Append new text node to new option element we created
new_option.appendChild(new_text_node);
// Append new option tag to select list
sel_cats.appendChild(new_option);
} else {
failed++;
}
}
}
var nextBitOfWork = function() { addCatsSIC(spot + batchSize) };
// Hand control back to the browser so it can update the page & not timeout & then restart the function
setTimeout(nextBitOfWork, 50);
}
if (failed > 0) {
// Find out if more than 2 cats were selected
for (var i = 0; i < cats.options.length; i++) {
if (cats.options[i].selected == true) {
sel_count++;
}
if (sel_count == 2) {
break;
}
}
// Give them an alert they have added that category already
/*addedCatSICAlert(sel_count);*/
}
}
Any reason why you are not using jQuery for this. You can disable button, hide select box and show elements by doing the following
$('button').click(function() {
$(this).attr('disabled', 'disabled');
$('select').hide();
$('p').show();
})
check working example at http://jsfiddle.net/N697c/1/
Fixed it by moving the code that reshows the select list etc from the "addCatsSICMain" function to the "addCatsSIC" function as so..
if (spot < cats.options.length) {
other code here...
} else {
reshow select list etc code here...
}