silverstripe-framework/admin/javascript/LeftAndMain.Panel.js

145 lines
4.7 KiB
JavaScript

(function($) {
$.entwine('ss', function($){
// setup jquery.entwine
$.entwine.warningLevel = $.entwine.WARN_LEVEL_BESTPRACTISE;
/**
* Hoizontal collapsible panel. Generic enough to work with CMS menu as well as various "filter" panels.
*
* A panel consists of the following parts:
* - Container div: The outer element, with class ".cms-panel"
* - Header (optional)
* - Content
* - Expand and collapse toggle anchors (optional)
*
* Sample HTML:
* <div class="cms-panel">
* <div class="cms-panel-header">your header</div>
* <div class="cms-panel-content">your content here</div>
* <div class="cms-panel-toggle">
* <a href="#" class="toggle-expande">your toggle text</a>
* <a href="#" class="toggle-collapse">your toggle text</a>
* </div>
* </div>
*/
$('.cms-panel').entwine({
WidthExpanded: null,
WidthCollapsed: null,
onmatch: function() {
if(!this.find('.cms-panel-content').length) throw new Exception('Content panel for ".cms-panel" not found');
// Create default controls unless they already exist.
if(!this.find('.cms-panel-toggle').length) {
var container = $("<div class='cms-panel-toggle south'></div>")
.append('<a class="toggle-expand" href="#"><span>&raquo;</span></a>')
.append('<a class="toggle-collapse" href="#"><span>&laquo;</span></a>');
this.append(container);
}
// Set panel width same as the content panel it contains. Assumes the panel has overflow: hidden.
this.setWidthExpanded(this.find('.cms-panel-content').innerWidth());
// Assumes the collasped width is indicated by the toggle, or by an optional collapsed view
var collapsedContent = this.find('.cms-panel-content-collapsed');
this.setWidthCollapsed(collapsedContent.length ? collapsedContent.innerWidth() : this.find('.toggle-expand').innerWidth());
// Set inital collapsed state, either from cookie or from default CSS classes
var collapsed, cookieCollapsed;
if($.cookie && this.attr('id')) {
cookieCollapsed = $.cookie('cms-panel-collapsed-' + this.attr('id'));
if(typeof cookieCollapsed != 'undefined' && cookieCollapsed != null) collapsed = (cookieCollapsed == 'true');
}
if(typeof collapsed == 'undefined') collapsed = jQuery(this).hasClass('collapsed');
this.togglePanel(!collapsed, true);
this._super();
},
onclick: function(e) {
// By default, the whole collapsed area serves as a trigger
if(this.data('expandOnClick') && jQuery(this).hasClass('collapsed')) {
e.preventDefault();
this.expandPanel();
}
},
/**
* @param {Boolean} TRUE to expand, FALSE to collapse.
* @param {Boolean} TRUE means that events won't be fired, which is useful for the component initialization phase.
*/
togglePanel: function(bool, silent) {
if(!silent) {
this.trigger('beforetoggle.sspanel', bool);
this.trigger(bool ? 'beforeexpand' : 'beforecollapse');
}
this.toggleClass('collapsed', !bool);
var newWidth = bool ? this.getWidthExpanded() : this.getWidthCollapsed();
this.width(newWidth); // the content panel width always stays in "expanded state" to avoid floating elements
this.find('.toggle-collapse')[bool ? 'show' : 'hide']();
this.find('.toggle-expand')[bool ? 'hide' : 'show']();
// If an alternative collapsed view exists, toggle it as well
var collapsedContent = this.find('.cms-panel-content-collapsed');
if(collapsedContent.length) {
this.find('.cms-panel-content')[bool ? 'show' : 'hide']();
this.find('.cms-panel-content-collapsed')[bool ? 'hide' : 'show']();
}
// Save collapsed state in cookie
if($.cookie && this.attr('id')) $.cookie('cms-panel-collapsed-' + this.attr('id'), !bool, {path: '/', expires: 31});
if(!silent) {
this.trigger('toggle', bool);
this.trigger(bool ? 'expand' : 'collapse');
}
},
expandPanel: function(force) {
if(!force && !this.hasClass('collapsed')) return;
this.togglePanel(true);
},
collapsePanel: function(force) {
if(!force && this.hasClass('collapsed')) return;
this.togglePanel(false);
}
});
$('.cms-panel.collapsed').entwine({
onclick: function(e) {
this.expandPanel();
e.preventDefault();
}
});
$('.cms-panel *').entwine({
getPanel: function() {
return this.parents('.cms-panel:first');
}
});
$('.cms-panel .toggle-expand').entwine({
onclick: function(e) {
e.preventDefault();
this.getPanel().expandPanel();
}
});
$('.cms-panel .toggle-collapse').entwine({
onclick: function(e) {
this.getPanel().collapsePanel();
return false;
}
});
});
}(jQuery));