adding support for multi-input fields like the address field.

extend_conditional_logic.php

/*
Trigger conditional logic by adding an onclick or onchange event to your custom field input or by using something like the following
	jQuery('#input_8_1 :input').on('change', function () {
		gf_apply_rules(8, [2, 3, 4]);
	});
*/


add_filter( 'gform_pre_render', 'extend_conditional_logic_frontend' );
function extend_conditional_logic_frontend( $form ) {
	?>
	<script>
		gform.addFilter('gform_is_value_match', function (isMatch, formId, rule) {
			if (!isMatch) {
				// adds support for multi-input fields
				var inputId = rule.fieldId.replace('.', '_'),
					input = jQuery('#input_' + formId + '_' + inputId);
				if (input.length == 1) {
					var val = input.val();
					isMatch = gf_matches_operation(val, rule.value, rule.operator);
				}
			}
			return isMatch;
		});
	</script>
	<?php
	return $form;
}

add_filter( 'gform_admin_pre_render', 'extend_conditional_logic_backend' );
function extend_conditional_logic_backend( $form ) {
	if ( GFCommon::is_entry_detail() ) {
		return $form;
	}
	?>
	<script>
		gform.addFilter('gform_is_conditional_logic_field', function (isConditionalLogicField, field) {
			return field.type == 'address' ? true : isConditionalLogicField;
		});
		gform.addFilter('gform_conditional_logic_fields', function (options, form, selectedFieldId) {
			options = [];
			
			var currentField = jQuery('.field_selected'),
			    currentFieldId = currentField.length == 1 ? currentField[0].id.substr(6) : 0;

			for (var f = 0; f < form.fields.length; f++) {
			
			        if (objectType == 'field' && form.fields[f].id != currentFieldId) {
			            continue;
			        }

				if (IsConditionalLogicField(form.fields[f])) {
					var fieldInputs = form.fields[f].inputs,
						inputType = GetInputType(form.fields[f]);

					if (inputType != 'checkbox' && fieldInputs) {
						for (var i = 0; i < fieldInputs.length; i++) {
							options.push({
								label: fieldInputs[i].label,
								value: fieldInputs[i].id
							});
						}
					} else {
						options.push({
							label: form.fields[f].adminLabel ? form.fields[f].adminLabel : form.fields[f].label,
							value: form.fields[f].id
						});
					}
				}

			}

			// get entry meta fields and append to existing fields
			jQuery.merge(options, GetEntryMetaFields(selectedFieldId));
			return options;
		});
		gform.addFilter('gform_conditional_logic_values_input', function (str, objectType, ruleIndex, selectedFieldId, selectedValue) {
		    var clField = GetFieldById(selectedFieldId),
		        fieldInput = GetInput(clField, selectedFieldId),
		        obj = GetConditionalObject(objectType),
		        rule = obj['conditionalLogic']['rules'][ruleIndex],
		        operator = rule.operator;
		
		    if (clField && fieldInput && jQuery.inArray(operator, ['is', 'isnot']) > -1) {
		        console.log('field has input');
		        var inputId = selectedFieldId.toString().replace('.', '_'),
		            input = jQuery('#input_' + inputId);
		
		        if (typeof fieldInput.choices != 'undefined') {
		            console.log('field has choices');
		            str = GetRuleValuesDropDown(fieldInput.choices, objectType, ruleIndex, selectedValue, false);
		        } else if (input.length == 1 && input.is('select')) {
		            var dropdown_id = objectType + '_rule_value_' + ruleIndex,
		                options = input.html();
		            options = options.replace('value="' + selectedValue + '"', 'value="' + selectedValue + '" selected="selected"');
		            str = "<select id='" + dropdown_id + "' class='gfield_rule_select gfield_rule_value_dropdown'>" + options + "</select>";
		        }
		    }
		
		    return str;
		});
	</script>
	<?php
	return $form;
}

Hi Richard,thanks for all of your nice code and hooks.
Basically I'm a GF user. recently I faced few problem with file upload. I wanted to upload photos with file upload fields. And at the same time I needed to show the photos preview besides of upload field. Like in a picture box with thumbnail view.
The second things I needed is file upload on list field. I have the code to make a list field column as a upload field. But when I submitted forms the files are not uploading or lost.
Can you help me?