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|
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/** |
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* Constructor |
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* @param selector string (required), jQuery selector of the form which needs to be intercepted |
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* @param message string (required), message displayed on the output box |
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* @param target string (required), jQuery selector corresponding to the HTML element that will be after the output box |
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* @param event string (optional), form event to listen. Possible values: submit, live. Default: submit. |
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*/ |
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function IscBlockForm(selector, message, target, event) |
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{ |
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// Private attributes |
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var instance = this; |
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if ('undefined' == typeof(IscBlockForm.IFB_counter)) { |
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IscBlockForm.IFB_counter = 0; |
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} |
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var instance_id = IscBlockForm.IFB_counter; |
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|
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IscBlockForm.IFB_counter++; |
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|
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if ('string' != typeof(selector)) { |
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throw 'Param 1 of IscBlockForm must be a string'; |
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} |
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var main_selector = selector; |
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|
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if ('string' != typeof(message)) { |
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throw 'Param 2 of IscBlockForm must be a string'; |
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} |
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var text = message; |
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|
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if ('string' != typeof(target)) { |
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throw 'Param 3 of IscBlockForm must be a string'; |
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} |
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var target_selector = target; |
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|
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var l_event = 'submit'; |
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if ('live' == event) { |
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l_event = 'live'; |
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} |
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var fields = {}; |
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var main_filter = undefined; |
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|
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// Private methods |
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|
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/** |
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* Scroll the window to the warning box |
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*/ |
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var jump_to = function(elem) { |
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pos = elem.offset(); |
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jQuery(document).scrollTop(pos.top); |
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jQuery(document).scrollLeft(pos.left); |
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} |
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|
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/** |
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* Display the warning box |
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*/ |
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var show_box = function() { |
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var box_id = 'IBF-' + instance_id; |
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if (0 < jQuery('#' + box_id).length) |
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jQuery('#' + box_id).remove(); |
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d = jQuery('<div />').attr({id : box_id}).css({ |
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border : '1px solid #eca', |
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backgroundColor : '#feb', |
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borderRadius: '2px', |
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height : '0%', |
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opacity: 0, |
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color: '#f30', |
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}); |
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m = jQuery('<p />').text(text).css({ |
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padding : '3px 5px', |
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margin: '5px', |
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fontWeight: 'bold', |
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}); |
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jQuery(target_selector).before(d.append(m)); |
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|
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if ('live' != l_event) |
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jump_to(d); |
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|
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d.animate( |
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{opacity: 1, height: '100%'}, |
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1500, |
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'swing' |
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); |
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} |
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|
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/** |
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* remove the warning box |
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*/ |
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var remove_box = function() { |
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var box_id = 'IBF-' + instance_id; |
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d = jQuery('#' + box_id); |
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if (0 < d.length) { |
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d.fadeOut(1500, function(){ |
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d.remove(); |
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}); |
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} |
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} |
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|
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/** |
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* Update value of fields |
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*/ |
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var update_fields = function() { |
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for (var id in fields) { |
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elem = jQuery(fields[id].selector); |
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tagname = elem.prop('tagName').toLowerCase(); |
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switch (tagname) { |
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case 'input' : |
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type = elem.attr('type'); |
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switch (type) { |
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case 'text': |
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fields[id].type = 'text'; |
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fields[id].value = elem.val(); |
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break; |
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case 'checkbox': |
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fields[id].type = 'checkbox'; |
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fields[id].value = elem.prop('checked'); |
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break; |
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default : |
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break; |
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} |
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break; |
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|
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case 'select' : |
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break; |
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|
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case 'textarea' : |
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break; |
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|
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} |
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} |
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} |
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|
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// Public methods |
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|
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/** |
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* Check the form with the filter |
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*/ |
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this.is_valid = function() { |
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update_fields(); |
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return main_filter(fields); |
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} |
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|
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|
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/** |
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* Register a field to be tested. |
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* @param field_id string (required), unique id for this registred field |
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* @param selector string (required), jQuery selector corresponding to the field. Id or name attributes are good. |
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*/ |
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this.register_field = function(field_id, selector) { |
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if ('string' != typeof(selector)) { |
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throw 'Param 1 of IscBlockForm.addfield must be a string'; |
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} |
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if ('undefined' != typeof(fields[field_id])) { |
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throw 'duplicated id ' + field_id; |
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} |
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if (1 < jQuery(selector).length) { |
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throw 'the jQuery selector ' + selector + ' match more than one element.'; |
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} |
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fields[field_id] = |
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{ |
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'selector' : selector, |
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'value' : undefined, |
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'type' : undefined |
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} |
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} |
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|
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/** |
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* Set the main filter function. |
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* @param main_filter_cb callback (required), when the function returns false, the submission is intercepted and the output box displayed. |
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* This callback accepts one parameter: the fields object. |
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*/ |
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this.filter = function(main_filter_cb) { |
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main_filter = main_filter_cb; |
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}; |
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|
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/** |
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* Attach the event defined in arguments |
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*/ |
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this.attach = function() { |
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switch (l_event) { |
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case 'submit' : |
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jQuery(main_selector).live('submit', function(){ |
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if (instance.is_valid()) { |
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return true; |
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} else { |
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show_box(); |
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return false; |
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} |
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}); |
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break; |
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case 'live' : |
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for (var id in fields) { |
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jQuery(fields[id].selector).live('change', function(){ |
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if (instance.is_valid()) { |
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remove_box(); |
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} else { |
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show_box(); |
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} |
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}); |
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} |
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break; |
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} |
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} |
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} |
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|
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/** |
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* The main program |
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*/ |
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jQuery(function(){ |
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if (isc_data.warning_nosource) { |
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classic_form = new IscBlockForm('#post', isc_data.block_form_message, '.compat-attachment-fields', 'submit'); |
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classic_form.register_field('source', '#post .compat-field-isc_image_source input'); |
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classic_form.register_field('own', '#post .compat-field-isc_image_source_own input'); |
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classic_form.filter(function(data){ |
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if ('' == data['source'].value && false == data['own'].value) { |
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return false; |
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} else { |
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return true; |
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} |
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}); |
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classic_form.attach(); |
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|
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live_form = new IscBlockForm('.compat-item', isc_data.block_form_message, '.compat-attachment-fields', 'live'); |
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live_form.register_field('source', '.compat-item .compat-field-isc_image_source input'); |
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live_form.register_field('own', '.compat-item .compat-field-isc_image_source_own input'); |
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live_form.filter(function(data){ |
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if ('' == data['source'].value && false == data['own'].value) { |
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return false; |
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} else { |
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return true; |
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} |
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}); |
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live_form.attach(); |
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} |
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}); |
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|
