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Update jQuery UJS

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1 parent 8b5dc9c commit 5af31f37fb28e2e78b96d1ccf624871c883cc622 @spastorino spastorino committed Feb 5, 2011
Showing with 143 additions and 149 deletions.
  1. +143 −149 railties/lib/rails/generators/rails/app/templates/public/javascripts/jquery_ujs.js
@@ -1,154 +1,148 @@
-/*
- * jquery-ujs
- *
- * http://github.com/rails/jquery-ujs/blob/master/src/rails.js
- *
- * This rails.js file supports jQuery 1.4.3 and 1.4.4 .
+/**
+ * Unobtrusive scripting adapter for jQuery
*
+ * Requires jQuery 1.4.3 or later.
+ * https://github.com/rails/jquery-ujs
*/
-jQuery(function ($) {
- var csrf_token = $('meta[name=csrf-token]').attr('content'),
- csrf_param = $('meta[name=csrf-param]').attr('content');
-
- $.fn.extend({
- /**
- * Triggers a custom event on an element and returns the event result
- * this is used to get around not being able to ensure callbacks are placed
- * at the end of the chain.
- */
- triggerAndReturn: function (name, data) {
- var event = new $.Event(name);
- this.trigger(event, data);
-
- return event.result !== false;
- },
-
- /**
- * Handles execution of remote calls. Provides following callbacks:
- *
- * - ajax:beforeSend - is executed before firing ajax call
- * - ajax:success - is executed when status is success
- * - ajax:complete - is executed when the request finishes, whether in failure or success
- * - ajax:error - is execute in case of error
- */
- callRemote: function () {
- var el = this,
- method = el.attr('method') || el.attr('data-method') || 'GET',
- url = el.attr('action') || el.attr('href'),
- dataType = el.attr('data-type') || ($.ajaxSettings && $.ajaxSettings.dataType);
-
- if (url === undefined) {
- throw "No URL specified for remote call (action or href must be present).";
- } else {
- var $this = $(this), data = el.is('form') ? el.serializeArray() : [];
-
- $.ajax({
- url: url,
- data: data,
- dataType: dataType,
- type: method.toUpperCase(),
- beforeSend: function (xhr) {
- if ($this.triggerHandler('ajax:beforeSend') === false) {
- return false;
- }
- },
- success: function (data, status, xhr) {
- el.trigger('ajax:success', [data, status, xhr]);
- },
- complete: function (xhr) {
- el.trigger('ajax:complete', xhr);
- },
- error: function (xhr, status, error) {
- el.trigger('ajax:error', [xhr, status, error]);
- }
- });
- }
- }
- });
-
- /**
- * confirmation handler
- */
- $('body').delegate('a[data-confirm], button[data-confirm], input[data-confirm]', 'click.rails', function () {
- var el = $(this);
- if (el.triggerAndReturn('confirm')) {
- if (!confirm(el.attr('data-confirm'))) {
- return false;
- }
- }
- });
-
-
-
- /**
- * remote handlers
- */
- $('form[data-remote]').live('submit.rails', function (e) {
- $(this).callRemote();
- e.preventDefault();
- });
-
- $('a[data-remote],input[data-remote]').live('click.rails', function (e) {
- $(this).callRemote();
- e.preventDefault();
- });
-
- /**
- * <%= link_to "Delete", user_path(@user), :method => :delete, :confirm => "Are you sure?" %>
- *
- * <a href="/users/5" data-confirm="Are you sure?" data-method="delete" rel="nofollow">Delete</a>
- */
- $('a[data-method]:not([data-remote])').live('click.rails', function (e){
- var link = $(this),
- href = link.attr('href'),
- method = link.attr('data-method'),
- form = $('<form method="post" action="'+href+'"></form>'),
- metadata_input = '<input name="_method" value="'+method+'" type="hidden" />';
-
- if (csrf_param !== undefined && csrf_token !== undefined) {
- metadata_input += '<input name="'+csrf_param+'" value="'+csrf_token+'" type="hidden" />';
- }
-
- form.hide()
- .append(metadata_input)
- .appendTo('body');
-
- e.preventDefault();
- form.submit();
- });
-
- /**
- * disable-with handlers
- */
- var disable_with_input_selector = 'input[data-disable-with]',
- disable_with_form_remote_selector = 'form[data-remote]:has(' + disable_with_input_selector + ')',
- disable_with_form_not_remote_selector = 'form:not([data-remote]):has(' + disable_with_input_selector + ')';
-
- var disable_with_input_function = function () {
- $(this).find(disable_with_input_selector).each(function () {
- var input = $(this);
- input.data('enable-with', input.val())
- .attr('value', input.attr('data-disable-with'))
- .attr('disabled', 'disabled');
- });
- };
-
- $(disable_with_form_remote_selector).live('ajax:before.rails', disable_with_input_function);
- $(disable_with_form_not_remote_selector).live('submit.rails', disable_with_input_function);
-
- $(disable_with_form_remote_selector).live('ajax:complete.rails', function () {
- $(this).find(disable_with_input_selector).each(function () {
- var input = $(this);
- input.removeAttr('disabled')
- .val(input.data('enable-with'));
- });
- });
-
- var jqueryVersion = $().jquery;
-
- if (!( (jqueryVersion === '1.4.3') || (jqueryVersion === '1.4.4'))){
- alert('This rails.js does not support the jQuery version you are using. Please read documentation.');
+(function($) {
+ // Triggers an event on an element and returns the event result
+ function fire(obj, name, data) {
+ var event = new $.Event(name);
+ obj.trigger(event, data);
+ return event.result !== false;
+ }
+
+ // Submits "remote" forms and links with ajax
+ function handleRemote(element) {
+ var method, url, data,
+ dataType = element.attr('data-type') || ($.ajaxSettings && $.ajaxSettings.dataType);
+
+ if (element.is('form')) {
+ method = element.attr('method');
+ url = element.attr('action');
+ data = element.serializeArray();
+ // memoized value from clicked submit button
+ var button = element.data('ujs:submit-button');
+ if (button) {
+ data.push(button);
+ element.data('ujs:submit-button', null);
+ }
+ } else {
+ method = element.attr('data-method');
+ url = element.attr('href');
+ data = null;
+ }
+
+ $.ajax({
+ url: url, type: method || 'GET', data: data, dataType: dataType,
+ // stopping the "ajax:beforeSend" event will cancel the ajax request
+ beforeSend: function(xhr, settings) {
+ if (settings.dataType === undefined) {
+ xhr.setRequestHeader('accept', '*/*;q=0.5, ' + settings.accepts.script);
+ }
+ return fire(element, 'ajax:beforeSend', [xhr, settings]);
+ },
+ success: function(data, status, xhr) {
+ element.trigger('ajax:success', [data, status, xhr]);
+ },
+ complete: function(xhr, status) {
+ element.trigger('ajax:complete', [xhr, status]);
+ },
+ error: function(xhr, status, error) {
+ element.trigger('ajax:error', [xhr, status, error]);
+ }
+ });
+ }
+
+ // Handles "data-method" on links such as:
+ // <a href="/users/5" data-method="delete" rel="nofollow" data-confirm="Are you sure?">Delete</a>
+ function handleMethod(link) {
+ var href = link.attr('href'),
+ method = link.attr('data-method'),
+ csrf_token = $('meta[name=csrf-token]').attr('content'),
+ csrf_param = $('meta[name=csrf-param]').attr('content'),
+ form = $('<form method="post" action="' + href + '"></form>'),
+ metadata_input = '<input name="_method" value="' + method + '" type="hidden" />';
+
+ if (csrf_param !== undefined && csrf_token !== undefined) {
+ metadata_input += '<input name="' + csrf_param + '" value="' + csrf_token + '" type="hidden" />';
+ }
+
+ form.hide().append(metadata_input).appendTo('body');
+ form.submit();
+ }
+
+ function disableFormElements(form) {
+ form.find('input[data-disable-with]').each(function() {
+ var input = $(this);
+ input.data('ujs:enable-with', input.val())
+ .val(input.attr('data-disable-with'))
+ .attr('disabled', 'disabled');
+ });
+ }
+
+ function enableFormElements(form) {
+ form.find('input[data-disable-with]').each(function() {
+ var input = $(this);
+ input.val(input.data('ujs:enable-with')).removeAttr('disabled');
+ });
+ }
+
+ function allowAction(element) {
+ var message = element.attr('data-confirm');
+ return !message || (fire(element, 'confirm') && confirm(message));
+ }
+
+ function requiredValuesMissing(form) {
+ var missing = false;
+ form.find('input[name][required]').each(function() {
+ if (!$(this).val()) missing = true;
+ });
+ return missing;
}
-});
+ $('a[data-confirm], a[data-method], a[data-remote]').live('click.rails', function(e) {
+ var link = $(this);
+ if (!allowAction(link)) return false;
+
+ if (link.attr('data-remote') != undefined) {
+ handleRemote(link);
+ return false;
+ } else if (link.attr('data-method')) {
+ handleMethod(link);
+ return false;
+ }
+ });
+
+ $('form').live('submit.rails', function(e) {
+ var form = $(this), remote = form.attr('data-remote') != undefined;
+ if (!allowAction(form)) return false;
+
+ // skip other logic when required values are missing
+ if (requiredValuesMissing(form)) return !remote;
+
+ if (remote) {
+ handleRemote(form);
+ return false;
+ } else {
+ disableFormElements(form);
+ }
+ });
+
+ $('form input[type=submit], form button[type=submit], form button:not([type])').live('click.rails', function() {
+ var button = $(this);
+ if (!allowAction(button)) return false;
+ // register the pressed submit button
+ var name = button.attr('name'), data = name ? {name:name, value:button.val()} : null;
+ button.closest('form').data('ujs:submit-button', data);
+ });
+
+ $('form').live('ajax:beforeSend.rails', function(event) {
+ if (this == event.target) disableFormElements($(this));
+ });
+
+ $('form').live('ajax:complete.rails', function(event) {
+ if (this == event.target) enableFormElements($(this));
+ });
+})( jQuery );

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