Index: modules/system/system.js
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.js,v
retrieving revision 1.36
diff -u -r1.36 system.js
--- modules/system/system.js 13 Oct 2009 21:34:15 -0000 1.36
+++ modules/system/system.js 16 Oct 2009 01:24:50 -0000
@@ -115,19 +115,6 @@
};
/**
- * Show/hide settings for user configurable time zones depending on whether
- * users are able to set their own time zones or not.
- */
-Drupal.behaviors.userTimeZones = {
- attach: function (context, settings) {
- $('#empty-timezone-message-wrapper .description').hide();
- $('#edit-configurable-timezones', context).change(function () {
- $('#empty-timezone-message-wrapper').toggle();
- });
- }
-};
-
-/**
* Show the powered by Drupal image preview
*/
Drupal.behaviors.poweredByPreview = {
Index: modules/system/system.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.module,v
retrieving revision 1.816
diff -u -r1.816 system.module
--- modules/system/system.module 15 Oct 2009 21:19:31 -0000 1.816
+++ modules/system/system.module 16 Oct 2009 01:24:52 -0000
@@ -477,6 +477,12 @@
'#default_tab' => '',
'#process' => array('form_process_vertical_tabs'),
);
+
+ $types['container'] = array(
+ '#theme_wrappers' => array('container'),
+ '#process' => array('form_process_container'),
+ );
+
$types['token'] = array(
'#input' => TRUE,
'#theme' => array('hidden'),
Index: modules/system/system.admin.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.admin.inc,v
retrieving revision 1.214
diff -u -r1.214 system.admin.inc
--- modules/system/system.admin.inc 15 Oct 2009 12:27:33 -0000 1.214
+++ modules/system/system.admin.inc 16 Oct 2009 01:24:50 -0000
@@ -493,13 +493,22 @@
'#tree' => FALSE,
'#description' => t('Check here if you want the theme to use the logo supplied with it.')
);
- $form['logo']['logo_path'] = array(
+ $form['logo']['settings'] = array(
+ '#type' => 'container',
+ '#states' => array(
+ // Hide the logo settings when using the default logo.
+ 'invisible' => array(
+ 'input[name="default_logo"]' => array('checked' => TRUE),
+ ),
+ ),
+ );
+ $form['logo']['settings']['logo_path'] = array(
'#type' => 'textfield',
'#title' => t('Path to custom logo'),
'#default_value' => theme_get_setting('logo_path', $key),
- '#description' => t('The path to the file you would like to use as your logo file instead of the default logo.'));
-
- $form['logo']['logo_upload'] = array(
+ '#description' => t('The path to the file you would like to use as your logo file instead of the default logo.'),
+ );
+ $form['logo']['settings']['logo_upload'] = array(
'#type' => 'file',
'#title' => t('Upload logo image'),
'#maxlength' => 40,
@@ -519,13 +528,22 @@
'#default_value' => theme_get_setting('default_favicon', $key),
'#description' => t('Check here if you want the theme to use the default shortcut icon.')
);
- $form['favicon']['favicon_path'] = array(
+ $form['favicon']['settings'] = array(
+ '#type' => 'container',
+ '#states' => array(
+ // Hide the favicon settings when using the default favicon.
+ 'invisible' => array(
+ 'input[name="default_favicon"]' => array('checked' => TRUE),
+ ),
+ ),
+ );
+ $form['favicon']['settings']['favicon_path'] = array(
'#type' => 'textfield',
'#title' => t('Path to custom icon'),
'#default_value' => theme_get_setting('favicon_path', $key),
'#description' => t('The path to the image file you would like to use as your custom shortcut icon.')
);
- $form['favicon']['favicon_upload'] = array(
+ $form['favicon']['settings']['favicon_upload'] = array(
'#type' => 'file',
'#title' => t('Upload icon image'),
'#description' => t("If you don't have direct file access to the server, use this field to upload your shortcut icon.")
@@ -1660,12 +1678,16 @@
'#default_value' => $configurable_timezones,
);
- $js_hide = !$configurable_timezones ? ' class="js-hide"' : '';
$form['timezone']['configurable_timezones_wrapper'] = array(
- '#prefix' => '
',
- '#suffix' => '
',
+ '#type' => 'container',
+ '#states' => array(
+ // Hide the user configured timezone settings when users are forced to use
+ // the default setting.
+ 'invisible' => array(
+ 'input[name="configurable_timezones"]' => array('checked' => FALSE),
+ ),
+ ),
);
-
$form['timezone']['configurable_timezones_wrapper']['empty_timezone_message'] = array(
'#type' => 'checkbox',
'#title' => t('Remind users at login if their time zone is not set.'),
Index: misc/collapse.js
===================================================================
RCS file: /cvs/drupal/drupal/misc/collapse.js,v
retrieving revision 1.25
diff -u -r1.25 collapse.js
--- misc/collapse.js 11 Sep 2009 02:01:26 -0000 1.25
+++ misc/collapse.js 16 Oct 2009 01:24:49 -0000
@@ -9,7 +9,9 @@
// Action div containers are processed separately because of a IE bug
// that alters the default submit button behavior.
var content = $('> div:not(.action)', fieldset);
- $(fieldset).removeClass('collapsed');
+ $(fieldset)
+ .removeClass('collapsed')
+ .trigger({ type: 'collapsed', value: false });
content.hide();
content.slideDown({
duration: 'fast',
@@ -27,6 +29,7 @@
}
else {
$('div.action', fieldset).hide();
+ $(fieldset).trigger({ type: 'collapsed', value: true });
var content = $('> div:not(.action)', fieldset).slideUp('fast', function () {
$(this.parentNode).addClass('collapsed');
this.parentNode.animating = false;
Index: modules/node/node.pages.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/node/node.pages.inc,v
retrieving revision 1.89
diff -u -r1.89 node.pages.inc
--- modules/node/node.pages.inc 15 Oct 2009 16:18:45 -0000 1.89
+++ modules/node/node.pages.inc 16 Oct 2009 01:24:49 -0000
@@ -178,6 +178,12 @@
'#type' => 'checkbox',
'#title' => t('Create new revision'),
'#default_value' => $node->revision,
+ '#states' => array(
+ // Check the revision log checkbox when the log textarea is filled in.
+ 'checked' => array(
+ 'textarea[name="log"]' => array('empty' => FALSE),
+ ),
+ ),
);
$form['revision_information']['log'] = array(
'#type' => 'textarea',
Index: modules/user/user.admin.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/user/user.admin.inc,v
retrieving revision 1.85
diff -u -r1.85 user.admin.inc
--- modules/user/user.admin.inc 15 Oct 2009 13:35:06 -0000 1.85
+++ modules/user/user.admin.inc 16 Oct 2009 01:24:52 -0000
@@ -342,15 +342,14 @@
'#default_value' => $picture_support,
);
drupal_add_js(drupal_get_path('module', 'user') . '/user.js');
- // If JS is enabled, and the checkbox defaults to off, hide all the settings
- // on page load via CSS using the js-hide class so there's no flicker.
- $css_class = 'user-admin-picture-settings';
- if (!$picture_support) {
- $css_class .= ' js-hide';
- }
$form['personalization']['pictures'] = array(
- '#prefix' => '',
- '#suffix' => '
',
+ '#type' => 'container',
+ '#states' => array(
+ // Hide the additional picture settings when user pictures are disabled.
+ 'invisible' => array(
+ 'input[name="user_pictures"]' => array('checked' => FALSE),
+ ),
+ ),
);
$form['personalization']['pictures']['user_picture_path'] = array(
'#type' => 'textfield',
@@ -511,13 +510,22 @@
'#title' => t('Notify user when account is activated.'),
'#default_value' => variable_get('user_mail_status_activated_notify', TRUE),
);
- $form['email_activated']['user_mail_status_activated_subject'] = array(
+ $form['email_activated']['settings'] = array(
+ '#type' => 'container',
+ '#states' => array(
+ // Hide the additional settings when this email is disabled.
+ 'invisible' => array(
+ 'input[name="user_mail_status_activated_notify"]' => array('checked' => FALSE),
+ ),
+ ),
+ );
+ $form['email_activated']['settings']['user_mail_status_activated_subject'] = array(
'#type' => 'textfield',
'#title' => t('Subject'),
'#default_value' => _user_mail_text('status_activated_subject'),
'#maxlength' => 180,
);
- $form['email_activated']['user_mail_status_activated_body'] = array(
+ $form['email_activated']['settings']['user_mail_status_activated_body'] = array(
'#type' => 'textarea',
'#title' => t('Body'),
'#default_value' => _user_mail_text('status_activated_body'),
@@ -537,13 +545,22 @@
'#title' => t('Notify user when account is blocked.'),
'#default_value' => variable_get('user_mail_status_blocked_notify', FALSE),
);
- $form['email_blocked']['user_mail_status_blocked_subject'] = array(
+ $form['email_blocked']['settings'] = array(
+ '#type' => 'container',
+ '#states' => array(
+ // Hide the additional settings when the blocked email is disabled.
+ 'invisible' => array(
+ 'input[name="user_mail_status_blocked_notify"]' => array('checked' => FALSE),
+ ),
+ ),
+ );
+ $form['email_blocked']['settings']['user_mail_status_blocked_subject'] = array(
'#type' => 'textfield',
'#title' => t('Subject'),
'#default_value' => _user_mail_text('status_blocked_subject'),
'#maxlength' => 180,
);
- $form['email_blocked']['user_mail_status_blocked_body'] = array(
+ $form['email_blocked']['settings']['user_mail_status_blocked_body'] = array(
'#type' => 'textarea',
'#title' => t('Body'),
'#default_value' => _user_mail_text('status_blocked_body'),
@@ -584,13 +601,22 @@
'#title' => t('Notify user when account is canceled.'),
'#default_value' => variable_get('user_mail_status_canceled_notify', FALSE),
);
- $form['email_canceled']['user_mail_status_canceled_subject'] = array(
+ $form['email_canceled']['settings'] = array(
+ '#type' => 'container',
+ '#states' => array(
+ // Hide the settings when the cancel notify checkbox is disabled.
+ 'invisible' => array(
+ 'input[name="user_mail_status_canceled_notify"]' => array('checked' => FALSE),
+ ),
+ ),
+ );
+ $form['email_canceled']['settings']['user_mail_status_canceled_subject'] = array(
'#type' => 'textfield',
'#title' => t('Subject'),
'#default_value' => _user_mail_text('status_canceled_subject'),
'#maxlength' => 180,
);
- $form['email_canceled']['user_mail_status_canceled_body'] = array(
+ $form['email_canceled']['settings']['user_mail_status_canceled_body'] = array(
'#type' => 'textarea',
'#title' => t('Body'),
'#default_value' => _user_mail_text('status_canceled_body'),
Index: modules/user/user.js
===================================================================
RCS file: /cvs/drupal/drupal/modules/user/user.js,v
retrieving revision 1.18
diff -u -r1.18 user.js
--- modules/user/user.js 21 Sep 2009 08:52:41 -0000 1.18
+++ modules/user/user.js 16 Oct 2009 01:24:52 -0000
@@ -176,16 +176,4 @@
};
-/**
- * Show all of the picture-related form elements at admin/config/people/accounts
- * depending on whether user pictures are enabled or not.
- */
-Drupal.behaviors.userSettings = {
- attach: function (context, settings) {
- $('#edit-user-pictures', context).change(function () {
- $('div.user-admin-picture-settings', context).toggle();
- });
- }
-};
-
})(jQuery);
Index: includes/common.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/common.inc,v
retrieving revision 1.1021
diff -u -r1.1021 common.inc
--- includes/common.inc 15 Oct 2009 21:19:30 -0000 1.1021
+++ includes/common.inc 16 Oct 2009 01:24:48 -0000
@@ -3770,6 +3770,53 @@
}
/**
+ * Adds JavaScript to the element to allow it to have different active states.
+ *
+ * @param $elements
+ * The structured array that may contain an array item named states. This
+ * array describes the different JavaScript states that can be applied to the
+ * element when certain contitions are met. The #states array is first keyed
+ * by one of the following states:
+ * - enabled
+ * - invisible
+ * - invalid
+ * - untouched
+ * - optional
+ * - filled
+ * - unchecked
+ * - irrelevant
+ * - expanded
+ * - readwrite
+ *
+ * Each of these states is an array containing conditions that must be met in
+ * order for this state to be active. The key to this conditioning array is
+ * a jQuery selector for the element that is checked. The value of the
+ * conditioning array are the states that are checked on the element (empty,
+ * checked, value, collapsed, etc) and the expected value of that condition.
+ *
+ * @code
+ * $form['email_canceled']['settings'] = array(
+ * '#type' => 'container',
+ * '#states' => array(
+ * // Hide the settings when the cancel notify checkbox is disabled.
+ * 'invisible' => array(
+ * 'input[name="email_canceled_toggle"]' => array('checked' => FALSE),
+ * ),
+ * ),
+ * );
+ * @endcode
+ */
+function drupal_process_states(&$elements) {
+ if (!empty($elements['#states'])) {
+ $elements['#attached']['js']['misc/states.js'] = array('weight' => JS_LIBRARY + 1);
+ $elements['#attached']['js'][] = array(
+ 'type' => 'setting',
+ 'data' => array('states' => array('#' . $elements['#id'] => $elements['#states'])),
+ );
+ }
+}
+
+/**
* Adds multiple JavaScript or CSS files at the same time.
*
* A library defines a set of JavaScript and/or CSS files, optionally using
@@ -4646,6 +4693,9 @@
}
}
+ // Add any JavaScript state information associated with the element.
+ drupal_process_states($elements);
+
// Add additional libraries, CSS, JavaScript an other custom
// attached data associated with this element.
drupal_process_attached($elements);
@@ -5171,6 +5221,9 @@
'vertical_tabs' => array(
'arguments' => array('element' => NULL),
),
+ 'container' => array(
+ 'arguments' => array('element' => NULL),
+ ),
);
}
Index: includes/form.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/form.inc,v
retrieving revision 1.385
diff -u -r1.385 form.inc
--- includes/form.inc 15 Oct 2009 16:18:44 -0000 1.385
+++ includes/form.inc 16 Oct 2009 01:24:49 -0000
@@ -2182,6 +2182,39 @@
}
/**
+ * Processes a container element.
+ *
+ * @param $element
+ * An associative array containing the properties and children of the
+ * container.
+ * @param $form_state
+ * The $form_state array for the form this element belongs to.
+ * @return
+ * The processed element.
+ */
+function form_process_container($element, &$form_state) {
+ $element['#id'] = drupal_html_id(implode('-', $element['#parents']) . '-wrapper');
+ return $element;
+}
+
+/**
+ * Adds a container for grouped items
+ *
+ * @param $element
+ * An associative array containing the properties and children of the
+ * group.
+ * Properties used: #children.
+ * @return
+ * A themed HTML string representing the form element.
+ *
+ * @ingroup themeable
+ */
+function theme_container($variables) {
+ $element = $variables['element'];
+ return '' . $element['#children'] . '
';
+}
+
+/**
* Format a table with radio buttons or checkboxes.
*
* @param $variables
Index: misc/states.js
===================================================================
RCS file: misc/states.js
diff -N misc/states.js
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ misc/states.js 1 Jan 1970 00:00:00 -0000
@@ -0,0 +1,398 @@
+// $Id$
+(function ($) {
+
+/**
+ * The base States namespace.
+ *
+ * Having the local states variable allows us to use the States namespace
+ * without having to always declare "Drupal.states".
+ */
+var states = Drupal.states = {
+ // An array of functions that should be postponed.
+ postponed: []
+};
+
+/**
+ * Attaches the states.
+ */
+Drupal.behaviors.states = {
+ attach: function (context, settings) {
+ for (var selector in settings.states) {
+ for (var state in settings.states[selector]) {
+ new states.Dependant({
+ element: $(selector),
+ state: states.State.sanitize(state),
+ dependees: settings.states[selector][state]
+ });
+ }
+ }
+
+ // Execute all postponed functions now.
+ while (states.postponed.length) {
+ (states.postponed.shift())();
+ }
+ }
+};
+
+/**
+ * Object representing an element that depends on other elements.
+ *
+ * @param args
+ * Object with the following keys (all of which are required):
+ * - element: A jQuery object of the dependant element
+ * - state: A State object describing the state that is dependant
+ * - dependees: An object with dependency specifications. Lists all elements
+ * that this element depends on.
+ */
+states.Dependant = function (args) {
+ $.extend(this, { values: {}, oldValue: undefined }, args);
+
+ for (var selector in this.dependees) {
+ this.initializeDependee(selector, this.dependees[selector]);
+ }
+};
+
+/**
+ * Comparison functions for comparing the value of an element with the
+ * specification from the dependency settings. If the object type can't be
+ * found in this list, the === operator is used by default.
+ */
+states.Dependant.comparisons = {
+ 'RegExp': function (reference, value) {
+ return reference.test(value);
+ },
+ 'Function': function (reference, value) {
+ // The "reference" variable is a comparison function.
+ return reference(value);
+ }
+};
+
+states.Dependant.prototype = {
+ /**
+ * Initializes one of the elements this dependant depends on.
+ *
+ * @param selector
+ * The CSS selector describing the dependee.
+ * @param dependeeStates
+ * The list of states that have to be monitored for tracking the
+ * dependee's compliance status.
+ */
+ initializeDependee: function (selector, dependeeStates) {
+ var self = this;
+
+ // Cache for the states of this dependee.
+ self.values[selector] = {};
+
+ $.each(dependeeStates, function (state, value) {
+ state = states.State.sanitize(state);
+
+ // Initialize the value of this state.
+ self.values[selector][state.pristine] = undefined;
+
+ // Monitor state changes of the specified state for this dependee.
+ $(selector).bind('state:' + state, function (e) {
+ var complies = self.compare(value, e.value);
+ self.update(selector, state, complies);
+ });
+
+ // Make sure the event we just bound ourselves to is actually fired.
+ new states.Trigger({ selector: selector, state: state });
+ });
+ },
+
+ /**
+ * Compares a value with a reference value.
+ *
+ * @param reference
+ * The value used for reference.
+ * @param value
+ * The value to compare with the reference value.
+ * @return
+ * true, undefined or false.
+ */
+ compare: function (reference, value) {
+ if (reference.constructor.name in states.Dependant.comparisons) {
+ // Use a custom compare function for certain reference value types.
+ return states.Dependant.comparisons[reference.constructor.name](reference, value);
+ }
+ else {
+ // Do a plain comparison otherwise.
+ return compare(reference, value);
+ }
+ },
+
+ /**
+ * Update the value of a dependee's state.
+ *
+ * @param selector
+ * CSS selector describing the dependee.
+ * @param state
+ * A State object describing the dependee's updated state.
+ * @param value
+ * The new value for the dependee's updated state.
+ */
+ update: function (selector, state, value) {
+ // Only act when the 'new' value is actually new.
+ if (value !== this.values[selector][state.pristine]) {
+ this.values[selector][state.pristine] = value;
+ this.reevaluate();
+ }
+ },
+
+ /**
+ * Triggers change events in case a state changed.
+ */
+ reevaluate: function () {
+ var value = undefined;
+
+ // Merge all individual values to find out whether this dependee complies.
+ for (var selector in this.values) {
+ for (var state in this.values[selector]) {
+ state = states.State.sanitize(state);
+ var complies = this.values[selector][state.pristine];
+ value = ternary(value, invert(complies, state.invert));
+ }
+ }
+
+ // Only invoke a state change event when the value actually changed.
+ if (value !== this.oldValue) {
+ // Store the new value so that we can compare later whether the value
+ // actually changed.
+ this.oldValue = value;
+
+ // Normalize the value to match the normalized state name.
+ value = invert(value, this.state.invert);
+
+ // By adding "trigger: true", we ensure that state changes don't go into
+ // infinite loops.
+ this.element.trigger({ type: 'state:' + this.state, value: value, trigger: true });
+ }
+ }
+};
+
+states.Trigger = function (args) {
+ $.extend(this, args);
+
+ if (this.state in states.Trigger.states) {
+ this.element = $(this.selector);
+
+ // Only call the trigger initializer when it wasn't yet attached to this
+ // element. Otherwise we'd end up with duplicate events.
+ if (!this.element.data('trigger:' + this.state)) {
+ this.initialize();
+ }
+ }
+};
+
+states.Trigger.prototype = {
+ initialize: function () {
+ var self = this;
+ var trigger = states.Trigger.states[this.state];
+
+ if (typeof trigger == 'function') {
+ // We have a custom trigger initialization function.
+ trigger.call(window, this.element);
+ }
+ else {
+ $.each(trigger, function (event, valueFn) {
+ self.defaultTrigger(event, valueFn);
+ });
+ }
+
+ // Mark this trigger as initialized for this element.
+ this.element.data('trigger:' + this.state, true);
+ },
+
+ defaultTrigger: function (event, valueFn) {
+ var self = this;
+ var oldValue = valueFn.call(this.element);
+
+ // Attach the event callback.
+ this.element.bind(event, function (e) {
+ var value = valueFn.call(self.element, e);
+ // Only trigger the event if the value has actually changed.
+ if (oldValue !== value) {
+ self.element.trigger({ type: 'state:' + self.state, value: value, oldValue: oldValue });
+ oldValue = value;
+ }
+ });
+
+ states.postponed.push(function () {
+ // Trigger the event once for initialization purposes.
+ self.element.trigger({ type: 'state:' + self.state, value: oldValue, oldValue: undefined });
+ });
+ }
+};
+
+/**
+ * This list of states contains functions that are used to monitor the state
+ * of an element. Whenever an element depends on the state of another element,
+ * one of these trigger functions is added to the dependee so that the
+ * dependant element can be updated.
+ */
+states.Trigger.states = {
+ // 'empty' describes the state to be monitored
+ empty: {
+ // 'keyup' is the (native DOM) event that we watch for.
+ 'keyup': function () {
+ // The function associated to that trigger returns the new value for the
+ // state.
+ return this.val() == '';
+ }
+ },
+
+ checked: {
+ 'change': function () {
+ return this.attr('checked');
+ }
+ },
+
+ value: {
+ 'keyup': function () {
+ return this.val();
+ }
+ },
+
+ collapsed: {
+ 'collapsed': function(e) {
+ return (e !== undefined && 'value' in e) ? e.value : this.is('.collapsed');
+ }
+ }
+};
+
+
+/**
+ * A state object is used for describing the state and performing aliasing.
+ */
+states.State = function(state) {
+ // We may need the original unresolved name later.
+ this.pristine = this.name = state;
+
+ // Normalize the state name.
+ while (true) {
+ // Iteratively remove exclamation marks and invert the value.
+ while (this.name.charAt(0) == '!') {
+ this.name = this.name.substring(1);
+ this.invert = !this.invert;
+ }
+
+ // Replace the state with its normalized name.
+ if (this.name in states.State.aliases) {
+ this.name = states.State.aliases[this.name];
+ }
+ else {
+ break;
+ }
+ }
+};
+
+/**
+ * Create a new State object by sanitizing the passed value.
+ */
+states.State.sanitize = function (state) {
+ if (state instanceof states.State) {
+ return state;
+ }
+ else {
+ return new states.State(state);
+ }
+};
+
+/**
+ * This list of aliases is used to normalize states and associates negated names
+ * with their respective inverse state.
+ */
+states.State.aliases = {
+ 'enabled': '!disabled',
+ 'invisible': '!visible',
+ 'invalid': '!valid',
+ 'untouched': '!touched',
+ 'optional': '!required',
+ 'filled': '!empty',
+ 'unchecked': '!checked',
+ 'irrelevant': '!relevant',
+ 'expanded': '!collapsed',
+ 'readwrite': '!readonly'
+};
+
+states.State.prototype = {
+ invert: false,
+
+ /**
+ * Ensures that just using the state object returns the name.
+ */
+ toString: function() {
+ return this.name;
+ }
+};
+
+/**
+ * Global state change handlers. These are bound to "document" to cover all
+ * elements whose state changes. Events sent to elements within the page
+ * bubble up to these handlers. We use this system so that themes and modules
+ * can override these state change handlers for particular parts of a page.
+ */
+{
+ $(document).bind('state:disabled', function(e) {
+ // Only act when this change was triggered by a dependency and not by the
+ // element monitoring itself.
+ if (e.trigger) {
+ $(e.target)
+ .attr('disabled', e.value)
+ .filter('.form-element')
+ .closest('.form-item, .form-wrapper')[e.value ? 'addClass' : 'removeClass']('form-disabled');
+
+ // Note: WebKit nightlies don't reflect that change correctly.
+ // See https://bugs.webkit.org/show_bug.cgi?id=23789
+ }
+ });
+
+ $(document).bind('state:required', function(e) {
+ if (e.trigger) {
+ $(e.target).closest('.form-item, .form-wrapper')[e.value ? 'addClass' : 'removeClass']('form-required');
+ }
+ });
+
+ $(document).bind('state:visible', function(e) {
+ if (e.trigger) {
+ $(e.target).closest('.form-item, .form-wrapper')[e.value ? 'show' : 'hide']();
+ }
+ });
+
+ $(document).bind('state:checked', function(e) {
+ if (e.trigger) {
+ $(e.target).attr('checked', e.value);
+ }
+ });
+
+ $(document).bind('state:collapsed', function(e) {
+ if (e.trigger) {
+ if ($(e.target).is('.collapsed') !== e.value) {
+ $('> legend a', e.target).click();
+ }
+ }
+ });
+}
+
+/**
+ * These are helper functions implementing addition "operators" and don't
+ * implement any logic that is particular to states.
+ */
+{
+ // Bitwise AND with a third undefined state.
+ function ternary (a, b) {
+ return a === undefined ? b : (b === undefined ? a : a && b);
+ };
+
+ // Inverts a (if it's not undefined) when invert is true.
+ function invert (a, invert) {
+ return (invert && a !== undefined) ? !a : a;
+ };
+
+ // Compares two values while ignoring undefined values.
+ function compare (a, b) {
+ return (a === b) ? (a === undefined ? a : true) : (a === undefined || b === undefined);
+ }
+}
+
+})(jQuery);