74 lines
3.0 KiB
JavaScript
74 lines
3.0 KiB
JavaScript
(function() {
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var update = function() {
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// Whenever a value changes create a new serialized version of this
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// problem's inputs and set the hidden input field's value to equal it.
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var parent = $(this).closest('section.choicetextinput');
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// find the closest parent problems-wrapper and use that as the problem
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// grab the input id from the input
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// real_input is the hidden input field
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var real_input = $('input.choicetextvalue', parent);
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var all_inputs = $('input.ctinput', parent);
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var user_inputs = {};
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$(all_inputs).each(function(index, elt) {
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var node = $(elt);
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var name = node.attr('id');
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var val = node.val();
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var radio_value = node.attr('value');
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var type = node.attr('type');
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var is_checked = node.attr('checked');
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if (type === 'radio' || type === 'checkbox') {
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if (is_checked === 'checked' || is_checked === 'true') {
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user_inputs[name] = radio_value;
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}
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} else {
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user_inputs[name] = val;
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}
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});
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var val_string = JSON.stringify(user_inputs);
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// this is what gets submitted as the answer, we deserialize it later
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real_input.val(val_string);
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};
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var check_parent = function(event) {
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// This looks for the containing choice of a textinput
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// and sets it to be checked.
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var elt = $(event.target);
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var parent_container = elt.closest('section[id^="forinput"]');
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var choice = parent_container.find("input[type='checkbox'], input[type='radio']");
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choice.attr('checked', 'checked');
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choice.change();
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// need to check it then trigger the change event
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};
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var imitate_label = function(event) {
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// This causes a section to check and uncheck
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// a radiobutton/checkbox whenever a user clicks on it
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// If the button/checkbox is disabled, nothing happens
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var elt = $(event.target);
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var parent_container = elt.closest('section[id^="forinput"]');
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var choice = parent_container.find("input[type='checkbox'], input[type='radio']");
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if (choice.attr('type') === 'radio') {
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choice.attr('checked', 'checked');
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} else {
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if (choice.attr('checked')) {
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choice.prop('checked', false);
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} else {
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choice.prop('checked', true);
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}
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}
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choice.change();
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update();
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};
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var choices = $('.mock_label');
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var inputs = $('.choicetextinput .ctinput');
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var text_inputs = $('.choicetextinput .ctinput[type="text"]');
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// update on load
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inputs.each(update);
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// and on every change
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// This allows text inside of choices to behave as if they were part of
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// a label for the choice's button/checkbox
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choices.click(imitate_label);
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inputs.bind('change', update);
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text_inputs.click(check_parent);
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}).call(this);
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