/*-------------------------------------------------------------------- TabKit.js 1 Sep 2010 Kazuhisa Togo ---------------------------------------------------------------------- Requirements + Prototype.js 1.6 + Script.aculo.us ---------------------------------------------------------------------- Copyright (c) 2010 Kazuhisa Togo Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. --------------------------------------------------------------------*/ var TabKit = Class.create({ // Set default values defaults: { delay: 5, duration: 0.5, activeTabsClassName: 'active', primaryView: 0 }, //------------------------------ // Constructor //------------------------------ initialize: function( selector, triggers, options ){ this.options = options || {}; // Initialize variables this.nodes = { triggers: {}, views: [] }; this.currentView = 0; this.autoplay_enabled = !! this.options.autoPlay; this.autostop_enabled = Object.isUndefined( this.options.autoStop ) ? true : !! this.options.autoStop; this.scaling_enabled = Object.isUndefined( this.options.scaling ) ? true : !! this.options.scaling; this.styling_enabled = Object.isUndefined( this.options.styling ) ? true : !! this.options.styling; this.delay = this.options.delay || this.defaults.delay; this.duration = this.options.duration || this.defaults.duration; this.currentView = this.options.primaryView || this.defaults.primaryView; this.activeTabsClassName = this.options.activeTabsClassName || this.defaults.activeTabsClassName; var scanNodes = function(){ // Get views if( Object.isString(selector)){ this.nodes.views = $$(selector); } else { $A(selector).each( function(e){ this.nodes.views.push( $(e) || $$(e)[0]); }.bind(this)); } // Get container if(this.options.container) this.nodes.container = $( this.options.container ) || $$(this.options.container)[this.currentView]; else this.nodes.container = $( this.nodes.views[this.currentView].parentNode ); // Containers style if(this.styling_enabled) this.nodes.container.setStyle({ overflow: 'hidden', padding: 0 }); if( this.nodes.container.getStyle('position') == 'static' ) this.nodes.container.style.position = 'relative'; // Views style this.nodes.views.each( function( e, i ){ // Set style if(this.styling_enabled) e.setStyle({ position: 'absolute', top: 0, left: 0, margin: 0 }); // Hide views e.hide(); }.bind(this)); // Show first view this.nodes.views[this.currentView].show(); // Stretch container if(this.scaling_enabled) this.nodes.container.setStyle({ height: this.nodes.views[this.currentView].offsetHeight +'px', width: this.nodes.views[this.currentView].offsetWidth +'px' }); // Bind self object [ 'select', 'next', 'previous', 'play', 'stop', 'observe' ].each( function(key){ this[key] = this[key].bind(this); }.bind(this)); // Enable autoplay if(this.autoplay_enabled) this.play(); // Start observing trigger event if(triggers){ if(Object.isString(triggers)) triggers = $$(triggers); ( Object.isArray(triggers) ? $R(0,triggers.length-1) : Object.keys(triggers)).each( function(key){ if( ! triggers[key]) return; else if( Object.isElement( triggers[key]) ||( Object.isString( triggers[key]) && $( triggers[key]))) this.observe( triggers[key], ['click','keypress'], key ); else ( Object.isString( triggers[key]) ? $$( triggers[key]) : $A( triggers[key])).each( function(e){ this.observe( e, ['click','keypress'], key ); }.bind(this)); }.bind(this)); } // Execute afterInitialized callback if(this.options.afterInitialized) try{ ( this.options.afterInitialized.bind(this))(); } catch(e){alert(e);} }.bind(this); if(this.options.initiateImmediately) scanNodes(); else Event.observe(window, 'load', scanNodes); }, //------------------------------ // Select view //------------------------------ select: function( view ){ // Calculate view number if( isNaN(view) && ! Object.isString(view)) view = 0; if( view !== 0 && ( view == '+' || view == undefined || view == '' )) view = this.currentView + 1; else if( view == '-' ) view = this.currentView - 1; if( view && ! isNaN(view)){ if( view < 0 ) view = this.nodes.views.length - 1; if( view > this.nodes.views.length - 1 ) view = 0; } if( this.currentView != view ){ // Select (( this.options.effect || function( next, current, container ){ // Stop effect if( container.scaleEffect && container.scaleEffect.cancel ) container.scaleEffect.cancel(); if( current.fadeEffect && current.fadeEffect.cancel ) current.fadeEffect.cancel(); if( next.fadeEffect && next.fadeEffect.cancel ) next.fadeEffect.cancel(); // Resize container next.setOpacity(0); next.show(); if(this.scaling_enabled) container.scaleEffect = new Effect.Morph( container, { style: { height: next.offsetHeight +'px', width: next.offsetWidth +'px' }, duration: this.duration }); // Fade view current.fadeEffect = new Effect.Fade( current, { duration: this.duration }); next.fadeEffect = new Effect.Appear( next, { duration: this.duration }); }).bind(this))( this.nodes.views[view], this.nodes.views[this.currentView], this.nodes.container ); // Toggle tabs classname this.setTriggersActivity(view); this.setTriggersActivity( this.currentView, false ); // Execute onSelect callback if(this.options.onSelect) try{ ( this.options.onSelect.bind(this))( view, this.currentView ); } catch(e){alert(e);}; this.currentView = view; } // Disable autoplay if(this.autostop_enabled) this.stop(); else if(this.autoplay_enabled) this.play(); }, // Next next: function(evt){ this.select('+'); try{ if( evt ||( evt = window.event || event )) Event.stop(evt); } catch(err){} }, // Previous previous: function(evt){ this.select('-'); try{ if( evt ||( evt = window.event || event )) Event.stop(evt); } catch(err){} }, //------------------------------ // Timer //------------------------------ // Recursive timer autoplay: function(){ // Next this.next(); // Recursive call this.play(); }, // Enable autoplay play: function(evt){ this.stop(evt); this.autoplay_enabled = true; this.autoplay_timer = setTimeout( this.autoplay.bind(this), this.delay * 1000 ); // Toggle triggers classname this.setTriggersActivity( 'play' ); this.setTriggersActivity( 'stop', false ); }, // Disable autoplay stop: function(evt){ this.autoplay_enabled = false; if( this.autoplay_timer ) clearTimeout( this.autoplay_timer ); try{ if( evt ||( evt = window.event || event )) Event.stop(evt); } catch(err){} // Toggle triggers classname this.setTriggersActivity( 'stop' ); this.setTriggersActivity( 'play', false ); }, //------------------------------ // Observe trigger event //------------------------------ // Begin trigger event observing observe: function( element, evt, func ){ if([ 'next', 'previous', 'play', 'stop' ].indexOf(func) < 0 && isNaN(func)) throw '[TabKit.observe] No such a method: '+ func; if( ! ( element = $(element))) return; ( Object.isArray(evt) ? evt : [evt]).each( function(ev){ Event.observe( element, ev, isNaN(func) ? this[func] : function(e){ this.select(func); if( e ||( e = window.event || event )) Event.stop(e); }.bindAsEventListener(this)); }.bind(this)); if( ! this.nodes.triggers[func]) this.nodes.triggers[func] = []; this.nodes.triggers[func].push(element); // Activate tabs classname if( func == this.currentView ) this.setTriggersActivity(func); else if( func == 'play' && this.autoplay_enabled ) this.setTriggersActivity( 'play' ); else if( func == 'stop' && ! this.autoplay_enabled ) this.setTriggersActivity( 'stop' ); return element; }, //------------------------------ // Toggle triggers classname //------------------------------ setTriggersActivity: function( trigger, activate ){ if( this.activeTabsClassName && this.nodes.triggers[trigger]){ this.nodes.triggers[trigger].each( function(e){ // Toggle classname if( activate || Object.isUndefined(activate)) e.addClassName(this.activeTabsClassName); else e.removeClassName(this.activeTabsClassName); }.bind(this)); } } });