├── LICENSE-GPL.txt ├── LICENSE-MIT.txt ├── README.md ├── TODO └── jquery.dirtyform.js /LICENSE-GPL.txt: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 2, June 1991 3 | 4 | Copyright (C) 1989, 1991 Free Software Foundation, Inc. 5 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | Preamble 10 | 11 | The licenses for most software are designed to take away your 12 | freedom to share and change it. By contrast, the GNU General Public 13 | License is intended to guarantee your freedom to share and change free 14 | software--to make sure the software is free for all its users. This 15 | General Public License applies to most of the Free Software 16 | Foundation's software and to any other program whose authors commit to 17 | using it. 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THE ENTIRE RISK AS 266 | TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE 267 | PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, 268 | REPAIR OR CORRECTION. 269 | 270 | 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 271 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 272 | REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 273 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING 274 | OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED 275 | TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY 276 | YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER 277 | PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE 278 | POSSIBILITY OF SUCH DAMAGES. -------------------------------------------------------------------------------- /LICENSE-MIT.txt: -------------------------------------------------------------------------------- 1 | Copyright (c) 2009 Asa Wilson 2 | 3 | Permission is hereby granted, free of charge, to any person obtaining 4 | a copy of this software and associated documentation files (the 5 | "Software"), to deal in the Software without restriction, including 6 | without limitation the rights to use, copy, modify, merge, publish, 7 | distribute, sublicense, and/or sell copies of the Software, and to 8 | permit persons to whom the Software is furnished to do so, subject to 9 | the following conditions: 10 | 11 | The above copyright notice and this permission notice shall be 12 | included in all copies or substantial portions of the Software. 13 | 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 15 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 16 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 17 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 18 | LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 19 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 20 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # DirtyForms How-To 2 | 3 | ## Example usage 4 | 5 | All forms in the page will be observed 6 | Whenever an input value changes it will get the 'changed' class added to it 7 | 8 | ```javascript 9 | $(function(){ 10 | $("form").dirty_form(); 11 | }); 12 | 13 | // All forms in the page will be observed 14 | // Whenever an input value changes it will get the 'forever_changes' class added to it 15 | $(function(){ 16 | $("form").dirty_form({changedClass: "forever_changes"}); 17 | }); 18 | ``` 19 | 20 | Often times you want to apply the "changed" CSS class to more than one element. 21 | To support this, DirtyForm can take a "addClassOn" option. 22 | Pass in a function that will be executed in the context of the dirty input element 23 | and the return value of the function will be added to the list of elements that 24 | get the "changed" class. In this function "this" refers to the dirty element. 25 | The code below will add the "change" class to the dirty input and to any labels 26 | descendants of the li element that contains the input. 27 | Example: 28 | 29 | ```javascript 30 | $("form").dirty_form({ 31 | addClassOn: function(){ 32 | return this.parents("li").find("label"); 33 | } 34 | }); 35 | ``` 36 | 37 | Forms within the "ch-ch-ch-changes" DIV in the page will be observed 38 | Whenever an input value changes it will get the 'changed' class added to it 39 | 40 | ```javascript 41 | $(function(){ 42 | $("#ch-ch-ch-changes form").dirty_form(); 43 | }); 44 | 45 | // Forms can observe the "dirty" event for customized behavior 46 | $(function(){ 47 | $("form") 48 | .dirty_form() 49 | .dirty(function(event, data){ 50 | var label = $(event.target).parents("li").find("label"); 51 | $("body").append("

" + label.text() + "Changed from " + data.from + " to: " + data.to+ "

") 52 | }) 53 | }); 54 | ``` 55 | 56 | As of this writing jQuery does not support event bubbling for custom events 57 | See discussion here: http://groups.google.com/group/jquery-dev/browse_thread/thread/1acd358ceeacd67a 58 | Once the patch is in any DOM element can subscribe to the "dirty" event 59 | 60 | By default, hidden inputs are not observed; this can be overridden by 61 | setting the includeHidden configuration: 62 | 63 | ```javascript 64 | $.DirtyForm.includeHidden = true; 65 | ``` 66 | 67 | Dirty form detection is performed using the blur event; when any input 68 | loses focus, its value is checked against its previous value and if 69 | they differ the field is marked dirty. The downside of this is that 70 | changes to radio buttons and checkboxes won't be detected until the 71 | element loses focus, instead of immediately when checked. You can 72 | tell DirtyForm to use a different event (i.e. change) with the 73 | monitorEvent property: 74 | 75 | ```javascript 76 | $.DirtyForm.monitorEvent = 'change'; 77 | ``` 78 | 79 | The $.DirtyForm singleton can be used for whole-page configuration 80 | 81 | ```javascript 82 | $(function(){ 83 | $.DirtyForm.dynamic = false // Don't bother watching out for dynamic additions to the DOM 84 | $.DirtyForm.debug = true // Turn on logging 85 | $.DirtyForm.logger = my_fancy_logger_fn // Override the default logger from console.log (if Firebug is available) or a plain-jane alert (for IE) -- NOT WORKING RIGHT NOW. GRR 86 | }); 87 | ``` 88 | 89 | All configuration options can be set per-instance 90 | 91 | ```javascript 92 | $(function(){ 93 | $("#some_form").dirty_form({dynamic: false}) 94 | $("#other_form").dirty_form({dynamic: true}) 95 | $("#third_form").dirty_form({debug: true}) 96 | }); 97 | ``` 98 | -------------------------------------------------------------------------------- /TODO: -------------------------------------------------------------------------------- 1 | make the stoppers work for anchor links 2 | investigate: possible to change this so that one can provide an extra selector to further filter the inputs in a form. I.e. "this form is to be considered dirty if inputs with class foo changes" 3 | monitorEvent setting cannot be changed per-instance; only globally. -------------------------------------------------------------------------------- /jquery.dirtyform.js: -------------------------------------------------------------------------------- 1 | // Copyright 2009 Asa Wilson 2 | // Available under both the GPL and MIT licenses, see license files for more details. 3 | 4 | if (typeof jQuery == 'undefined') throw("jQuery could not be found."); 5 | 6 | (function($){ 7 | 8 | $.extend({ 9 | DirtyForm: { 10 | debug : false, // print out debug info? works best with firebug. 11 | changedClass : 'changed', 12 | addClassOn : new Function, 13 | hasFirebug : "console" in window && "firebug" in window.console, 14 | includeHidden : false, 15 | monitorEvent : 'blur', 16 | logger : function(msg){ 17 | if(this.debug){ 18 | msg = "DirtyForm: " + msg; 19 | this.hasFirebug ? console.log(msg) : alert(msg); 20 | } 21 | }, 22 | input_value : function(input){ 23 | if(input.is(':radio,:checkbox')){ 24 | return typeof(input.attr("checked")) == "undefined" ? false : input.attr("checked"); 25 | } else { 26 | return input.val(); 27 | } 28 | }, 29 | input_reset : function(input){ 30 | if(input.is(':radio,:checkbox')){ 31 | input.attr('checked', input.data('initial')); 32 | } else { 33 | input.val(input.data('initial')); 34 | } 35 | input.trigger($.DirtyForm.monitorEvent + '.dirty_form') 36 | }, 37 | input_checker : function(event){ 38 | var npt = $(event.target), form = npt.parents('.dirtyform'), initial = npt.data("initial"), current = $.DirtyForm.input_value(npt), inputs = event.data.inputs, settings = event.data.settings 39 | 40 | if(initial != current) { 41 | $.DirtyForm.logger("Form "+form.attr('class')+" is dirty. Changed from \""+initial+"\" to \""+current+"\""); 42 | $.DirtyForm.logger("Class: "+settings.changedClass); 43 | form 44 | .data("dirty", true) //TODO: check if we can use an expando property here 45 | .trigger("dirty", {target: npt, from: initial, to: current, preventDefault: function(){return false}, stopPropagation: function(){return false}, bubbles: true, cancelable: true}); 46 | npt 47 | .add(settings.addClassOn.apply(npt)) 48 | .addClass(settings.changedClass); // TODO: maybe we need to check if the class exists already? 49 | 50 | } else { 51 | npt 52 | .add(settings.addClassOn.apply(npt)) 53 | .removeClass(settings.changedClass) 54 | } 55 | 56 | if(!inputs.filter('.' + settings.changedClass).size()){ 57 | form 58 | .data("dirty",false) 59 | .trigger("clean", {target: npt, preventDefault: function(){return false}, stopPropagation: function(){return false}, bubbles: true, cancelable: true}); 60 | } 61 | } 62 | } 63 | 64 | }); 65 | 66 | $.fn.clean_form = function(){ 67 | return this.each(function(){ 68 | var dirtyform = $(this) 69 | if(dirtyform.is('form')) { 70 | dirtyform.reset().find('.changed:input').each(function(){ 71 | $(this).trigger($.DirtyForm.monitorEvent + '.dirty_form'); 72 | }); 73 | } else { 74 | var selectorFilters = ':submit,:password,:button'; 75 | if (!settings.includeHidden) { 76 | selectorFilters = ':hidden,' + selectorFilters; 77 | } 78 | 79 | $(':input:not(' + selectorFilters + ')', dirtyform).each(function(){ 80 | $.DirtyForm.input_reset($(this)); 81 | }); 82 | } 83 | }) 84 | } 85 | 86 | // will flag a form as dirty if something is changed on the form. 87 | $.fn.dirty_form = function(){ 88 | var defaults = { 89 | changedClass : $.DirtyForm.changedClass, 90 | addClassOn : $.DirtyForm.addClassOn, 91 | dynamic : $.isFunction($.livequery) 92 | } 93 | 94 | var settings = $.extend(defaults, arguments.length != 0 ? arguments[0] : {}); 95 | 96 | return this.each(function(){ 97 | var form = $(this); 98 | 99 | var selectorFilters = ':submit,:password,:button'; 100 | if (!settings.includeHidden) { 101 | selectorFilters = ':hidden,' + selectorFilters; 102 | } 103 | 104 | var inputs = $(':input:not(' + selectorFilters + ')', form); 105 | 106 | if( form.hasClass('dirtyform') ){ 107 | // unbind all DirtyForms specific events, then proceed to re-add them 108 | form.unbind("dirty").unbind("clean"); 109 | inputs.unbind($.DirtyForm.monitorEvent + ".dirty_form"); 110 | }else{ 111 | // mark it as a dirtyform 112 | $(this).addClass('dirtyform') 113 | } 114 | 115 | $.DirtyForm.logger('Storing initial data for form ' + form.get(0)); 116 | 117 | if (settings.dynamic) { 118 | inputs.livequery(function(){ // use livequery to perform these functions on the new elements added to the form 119 | $(this) 120 | .bind($.DirtyForm.monitorEvent + ".dirty_form", {inputs: inputs, settings: settings}, $.DirtyForm.input_checker) 121 | .data('initial', $.DirtyForm.input_value($(this))) 122 | }); 123 | }else { 124 | inputs.each(function(){ 125 | $(this) 126 | .bind($.DirtyForm.monitorEvent + ".dirty_form", {inputs: inputs, settings: settings}, $.DirtyForm.input_checker) 127 | .data("initial", $.DirtyForm.input_value($(this))); 128 | }); 129 | } 130 | }); 131 | }; 132 | 133 | 134 | // this is meant for selecting links that will warn about proceeding if there are any dirty forms on the page 135 | $.fn.dirty_stopper = function(){ 136 | var defaults = { 137 | dialog : { 138 | title: "Warning: Unsaved Changes!", 139 | height: 300, 140 | width: 500, 141 | modal: true, 142 | resizeable: false, 143 | autoResize: false, 144 | overlay: {backgroundColor: "black", opacity: 0.5} 145 | }, 146 | message : '

You have changed form data without saving. All of your changes will be lost.

Are you sure you want to proceed?

' 147 | } 148 | 149 | var settings = $.extend(true, defaults, arguments.length != 0 ? arguments[0] : {}); 150 | 151 | $.DirtyForm.logger("Setting dirty stoppers") 152 | 153 | return this.each(function(){ 154 | var stopper = $(this); 155 | 156 | if ($(this).parents('.ui-tabs-nav').length > 0){ 157 | // FIXME: not sure what the comment below is actually saying. "Unchaining ... made it NOT work"?? (dvd, 03-02-2009) 158 | // Unchaining these tabs calls made the tab links not work 159 | var tabs = $(this).parents('.ui-tabs-nav') 160 | tabs.find('a').unbind('click.dirty_form') 161 | tabs.unbind('tabsselect.dirty_form') 162 | tabs.bind('tabsselect.dirty_form', function(event, ui){ 163 | if($('.dirtyform').are_dirty()) { 164 | event.preventDefault(); 165 | var div = $("
").appendTo(document.body) 166 | var href = $(this).attr('href') 167 | div.dialog($.extend(settings.dialog, { 168 | buttons: { 169 | Proceed: function(){ 170 | var selected_id = $(ui.tab).parent().siblings('.ui-tabs-selected').find('a').attr('href'); 171 | // reset the form in the selected tab and make sure it cleans up after itself 172 | $('.dirtyform', selected_id).clean_form(); 173 | 174 | // select the tab now that the old tab is clean 175 | tabs.tabs('select', $(ui.tab).attr('href')); 176 | 177 | // close the dialog with fire 178 | $(this).dialog('destroy').remove() 179 | }, 180 | Cancel: function(){$(this).dialog('destroy').remove()} 181 | } 182 | })).dialog("moveToTop").append(settings.message); 183 | // div.append(settings.message); 184 | return false 185 | } 186 | }) 187 | } else { 188 | stopper.unbind('click.dirty_form') 189 | stopper.bind('click.dirty_form', function(event){ 190 | if($('.dirtyform').are_dirty()) { 191 | event.preventDefault(); 192 | var div = $("
").appendTo(document.body), 193 | href = $(this).attr('href'); 194 | div.dialog($.extend({buttons: { 195 | Proceed:function(){window.location = href}, 196 | Cancel:function(){$(this).dialog('destroy').remove(); return false} 197 | } 198 | }, settings.dialog)).dialog("moveToTop").append(settings.message); 199 | } 200 | }); 201 | } 202 | }); 203 | } 204 | 205 | // not chainable 206 | // returns false if any of the forms on the page are dirty 207 | $.fn.are_dirty = function (){ 208 | var dirty = false 209 | this.each(function(){ 210 | if($(this).data('dirty')) { 211 | dirty = true; 212 | } 213 | }) 214 | return dirty 215 | } 216 | 217 | // This is just for testing purposes... 218 | $.fn.dirty_checker = function(){ 219 | $.DirtyForm.logger("Setting dirty checkers!") 220 | 221 | return this.each(function(){ 222 | checker = $(this); 223 | checker.click(function(){ 224 | if($("form").are_dirty()) { 225 | alert("Dirty Form!!"); 226 | } else { 227 | alert("Clean Form ...phew!"); 228 | } 229 | }); 230 | }); 231 | } 232 | 233 | // Shortcut to bind a handler to the "ondirty" event 234 | $.fn.extend({ 235 | dirty: function(fn) { 236 | return this.bind('dirty', fn); 237 | }, 238 | clean: function(fn) { 239 | return this.bind('clean', fn); 240 | } 241 | }); 242 | })(jQuery); 243 | --------------------------------------------------------------------------------