silverstripe-framework/admin/javascript/LeftAndMain.Menu.js
2012-05-23 16:24:15 +12:00

248 lines
7.3 KiB
JavaScript

(function($) {
$.entwine('ss', function($){
/**
* Vertical CMS menu with two levels, built from a nested unordered list.
* The (optional) second level is collapsible, hiding its children.
* The whole menu (including second levels) is collapsible as well,
* exposing only a preview for every menu item in order to save space.
* In this "preview/collapsed" mode, the secondary menu hovers over the menu item,
* rather than expanding it.
*
* Example:
*
* <ul class="cms-menu-list">
* <li><a href="#">Item 1</a></li>
* <li class="current opened">
* <a href="#">Item 2</a>
* <ul>
* <li class="current opened"><a href="#">Item 2.1</a></li>
* <li><a href="#">Item 2.2</a></li>
* </ul>
* </li>
* </ul>
*
* Custom Events:
* - 'select': Fires when a menu item is selected (on any level).
*/
$('.cms-panel.cms-menu').entwine({
togglePanel: function(bool) {
//apply or unapply the flyout formatting, should only apply to cms-menu-list when the current collapsed panal is the cms menu.
$('.cms-menu-list').children('li').each(function(){
if (bool) { //expand
$(this).children('ul').each(function() {
$(this).removeClass('collapsed-flyout');
if ($(this).data('collapse')) {
$(this).removeData('collapse');
$(this).addClass('collapse');
}
});
} else { //collapse
$(this).children('ul').each(function() {
$(this).addClass('collapsed-flyout');
$(this).hasClass('collapse');
$(this).removeClass('collapse');
$(this).data('collapse', true);
});
}
});
this.toggleFlyoutState(bool);
this._super(bool);
},
toggleFlyoutState: function(bool) {
if (bool) { //expand
//show the flyout
$('.collapsed').find('li').show();
//hide all the flyout-indicator
$('.cms-menu-list').find('.child-flyout-indicator').hide();
} else { //collapse
//hide the flyout only if it is not the current section
$('.collapsed-flyout').find('li').each(function() {
//if (!$(this).hasClass('current'))
$(this).hide();
});
//show all the flyout-indicators
var par = $('.cms-menu-list ul.collapsed-flyout').parent();
if (par.children('.child-flyout-indicator').length === 0) par.append('<span class="child-flyout-indicator"></span>').fadeIn();
par.children('.child-flyout-indicator').fadeIn();
}
}
});
$('.cms-menu-list').entwine({
onmatch: function() {
var self = this;
var updateMenuFromResponse = function(xhr) {
var controller = xhr.getResponseHeader('X-Controller');
if(controller) {
var item = self.find('li#Menu-' + controller);
if(!item.hasClass('current')) item.select();
}
self.updateItems();
};
$('.cms-container').live('afterstatechange', function(e, data) {
updateMenuFromResponse(data.xhr);
});
$('.cms-edit-form').live('reloadeditform', function(e, data) {
updateMenuFromResponse(data.xmlhttp);
});
// Sync collapsed state with parent panel
this.parents('.cms-panel:first').bind('toggle', function(e) {
self.toggleClass('collapsed', $(this).hasClass('collapsed'));
});
// Select default element (which might reveal children in hidden parents)
this.find('li.current').select();
this.updateItems();
this._super();
},
onunmatch: function() {
this._super();
},
updateItems: function() {
// Hide "edit page" commands unless the section is activated
var editPageItem = this.find('#Menu-CMSMain');
editPageItem[editPageItem.is('.current') ? 'show' : 'hide']();
// Update the menu links to reflect the page ID if the page has changed the URL.
var currentID = $('.cms-content input[name=ID]').val();
if(currentID) {
this.find('li').each(function() {
if($.isFunction($(this).setRecordID)) $(this).setRecordID(currentID);
});
}
}
});
/** Toggle the flyout panel to appear/disappear when mouse over */
$('.cms-menu-list li').entwine({
toggleFlyout: function(bool) {
fly = $(this);
if (fly.children('ul').first().hasClass('collapsed-flyout')) {
if (bool) { //expand
fly.children('ul').find('li').fadeIn('fast');
} else { //collapse
fly.children('ul').find('li').hide();
}
}
}
});
//slight delay to prevent flyout closing from "sloppy mouse movement"
$('.cms-menu-list li').hoverIntent(function(){$(this).toggleFlyout(true);},function(){$(this).toggleFlyout(false);});
$('.cms-menu-list .toggle').entwine({
onclick: function(e) {
this.getMenuItem().toggle();
e.preventDefault();
}
});
$('.cms-menu-list li').entwine({
onmatch: function() {
if(this.find('ul').length) {
this.find('a:first').append('<span class="toggle-children"><span class="toggle-children-icon"></span></span>');
}
this._super();
},
onunmatch: function() {
this._super();
},
toggle: function() {
this[this.hasClass('opened') ? 'close' : 'open']();
},
/**
* "Open" is just a visual state, and unrelated to "current".
* More than one item can be open at the same time.
*/
open: function() {
var parent = this.getMenuItem();
if(parent) parent.open();
this.addClass('opened').find('ul').show();
this.find('.toggle-children').addClass('opened');
},
close: function() {
this.removeClass('opened').find('ul').hide();
this.find('.toggle-children').removeClass('opened');
},
select: function() {
var parent = this.getMenuItem();
this.addClass('current').open();
// Remove "current" class from all siblings and their children
this.siblings().removeClass('current').close();
this.siblings().find('li').removeClass('current');
if(parent) {
var parentSiblings = parent.siblings();
parent.addClass('current');
parentSiblings.removeClass('current').close();
parentSiblings.find('li').removeClass('current').close();
}
this.getMenu().updateItems();
this.trigger('select');
}
});
$('.cms-menu-list *').entwine({
getMenu: function() {
return this.parents('.cms-menu-list:first');
}
});
$('.cms-menu-list li *').entwine({
getMenuItem: function() {
return this.parents('li:first');
}
});
/**
* Both primary and secondary nav.
*/
$('.cms-menu-list li a').entwine({
onclick: function(e) {
// Only catch left clicks, in order to allow opening in tabs.
// Ignore external links, fallback to standard link behaviour
var isExternal = $.path.isExternal(this.attr('href'));
if(e.which > 1 || isExternal) return;
e.preventDefault();
var item = this.getMenuItem();
var url = this.attr('href');
if(!isExternal) url = $('base').attr('href') + url;
var children = item.find('li');
if(children.length) {
children.first().find('a').click();
} else {
// Load URL, but give the loading logic an opportunity to veto the action
// (e.g. because of unsaved changes)
if(!$('.cms-container').loadPanel(url)) return false;
}
item.select();
}
});
$('.cms-menu-list li .toggle-children').entwine({
onclick: function(e) {
var li = this.closest('li');
li.toggle();
return false; // prevent wrapping link event to fire
}
});
});
}(jQuery));