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jquery.gridnav.js
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/**
* Codrops - 2011
*
* This plugin can be used freely in personal and commercial projects.
* But just in case, you should read this http://tympanus.net/codrops/licensing/
* "timeout" option added by Douglas Miranda - http://douglasmiranda.com
*/
(function($) {
jQuery.fn.reverse = Array.prototype.reverse;
var
// auxiliar functions
aux = {
setup : function( $wrapper, $items, opts ) {
// set the wrappers position to relative
$wrapper.css('position', 'relative');
// save the items position
aux.saveInitialPosition( $items );
// set the items to absolute and assign top & left
$items.each(function(i) {
var $item = $(this);
$item.css({
position : 'absolute',
left : $item.data('left'),
top : $item.data('top')
});
});
// check how many items we have per row
var rowCount = Math.floor( $wrapper.width() / $items.width() ),
// number of items to show is rowCount * n rows
shown = rowCount * opts.rows,
// total number of rows
totalRows = Math.ceil( $items.length / rowCount );
// save this values for later
var config = {};
config.currentRow = 1;
config.totalRows = totalRows;
config.rowCount = rowCount;
config.shownItems = shown;
$wrapper.data('config', config);
// show n rowns
$wrapper.children(':gt(' + (shown - 1) + ')').hide();
// assign row classes to the items
$items.each(function(i) {
var $item = $(this),
row = Math.ceil( (i + 1) / rowCount );
$item.addClass('tj_row_' + row);
});
nav.setup( $wrapper, $items, opts );
},
saveInitialPosition : function( $items ) {
$items.each(function(i) {
var $item = $(this);
$item.data({
left : $item.position().left + 'px',
top : $item.position().top + 'px'
});
});
}
},
// navigation types
nav = {
setup : function( $wrapper, $items, opts ) {
nav[opts.type.mode].setup( $wrapper, $items, opts );
},
def : {
setup : function( $wrapper, $items, opts ) {
var config = $wrapper.data('config');
$items.each(function(i) {
var $item = $(this),
row = Math.ceil( (i + 1) / config.rowCount ),
t,
f = row % opts.rows;
if( f === 1 ) {
t = '0px';
} else if( f === 0 ) {
t = (opts.rows - 1) * $items.height() + 'px';
} else {
t = (f - 1) * $items.height() + 'px';
}
$item.css({ top : t });
});
},
pagination : function( $wrapper, dir, opts ) {
var config = $wrapper.data('config');
if( ( dir === 1 && config.currentRow + opts.rows > config.totalRows ) ||
( dir === -1 && config.currentRow - opts.rows <= 0 )
) {
$wrapper.data( 'anim', false );
return false;
}
var currentRows = '', nextRows = '';
for( var i = 0; i < opts.rows; ++i ) {
currentRows += '.tj_row_' + (config.currentRow + i) + ',';
(dir === 1)
? nextRows += '.tj_row_' + (config.currentRow + opts.rows + i) + ','
: nextRows += '.tj_row_' + (config.currentRow - 1 - i) + ',';
}
$wrapper.children(currentRows).hide();
$wrapper.children(nextRows).show();
(dir === 1) ? config.currentRow += opts.rows : config.currentRow -= opts.rows;
$wrapper.data( 'anim', false );
$wrapper.data('config', config);
}
},
fade : {
setup : function( $wrapper, $items, opts ) {
// same like def mode
nav['def'].setup( $wrapper, $items, opts );
},
pagination : function( $wrapper, dir, opts ) {
var config = $wrapper.data('config');
if( ( dir === 1 && config.currentRow + opts.rows > config.totalRows ) ||
( dir === -1 && config.currentRow - opts.rows <= 0 )
) {
$wrapper.data( 'anim', false );
return false;
}
var currentRows = '', nextRows = '';
for( var i = 0; i < opts.rows; ++i ) {
currentRows += '.tj_row_' + (config.currentRow + i) + ',';
(dir === 1)
? nextRows += '.tj_row_' + (config.currentRow + opts.rows + i) + ','
: nextRows += '.tj_row_' + (config.currentRow - 1 - i) + ',';
}
$wrapper.children(currentRows).fadeOut( opts.type.speed, opts.type.easing );
var $nextRowElements= $wrapper.children(nextRows),
totalNextRows = $nextRowElements.length,
cnt = 0;
$nextRowElements.fadeIn( opts.type.speed, opts.type.easing, function() {
++cnt;
if( cnt === totalNextRows ) {
$wrapper.data( 'anim', false );
}
});
(dir === 1) ? config.currentRow += opts.rows : config.currentRow -= opts.rows;
$wrapper.data('config', config);
}
},
seqfade : {
setup : function( $wrapper, $items, opts ) {
// same like def mode
nav['def'].setup( $wrapper, $items, opts );
},
pagination : function( $wrapper, dir, opts ) {
var config = $wrapper.data('config');
if( ( dir === 1 && config.currentRow + opts.rows > config.totalRows ) ||
( dir === -1 && config.currentRow - opts.rows <= 0 )
) {
$wrapper.data( 'anim', false );
return false;
}
var currentRows = '', nextRows = '';
for( var i = 0; i < opts.rows; ++i ) {
currentRows += '.tj_row_' + (config.currentRow + i) + ',';
(dir === 1)
? nextRows += '.tj_row_' + (config.currentRow + opts.rows + i) + ','
: nextRows += '.tj_row_' + (config.currentRow - 1 - i) + ',';
}
var seq_t = opts.type.factor;
var $currentRowElements;
( dir === 1 )
? $currentRowElements = $wrapper.children(currentRows)
: $currentRowElements = $wrapper.children(currentRows).reverse();
$currentRowElements.each(function(i) {
var $el = $(this);
setTimeout(function() {
$el.fadeOut( opts.type.speed, opts.type.easing )
}, seq_t + i * seq_t);
});
var $nextRowElements;
( dir === 1 )
? $nextRowElements = $wrapper.children(nextRows)
: $nextRowElements = $wrapper.children(nextRows).reverse();
var total_elems = $nextRowElements.length,
cnt = 0;
$nextRowElements.each(function(i) {
var $el = $(this);
setTimeout(function() {
$el.fadeIn( opts.type.speed, opts.type.easing, function() {
++cnt;
if( cnt === total_elems ) {
$wrapper.data( 'anim', false );
}
})
}, (seq_t * 2) + i * seq_t);
});
(dir === 1) ? config.currentRow += opts.rows : config.currentRow -= opts.rows;
$wrapper.data('config', config);
}
},
updown : {
setup : function( $wrapper, $items, opts ) {
var config = $wrapper.data('config');
$wrapper.children(':gt(' + (config.shownItems - 1) + ')').css('opacity', 0);
$items.each(function(i) {
var $item = $(this),
row = Math.ceil( (i + 1) / config.rowCount ),
t = $item.position().top,
f = row % opts.rows;
if( row > opts.rows ) {
t = (opts.rows * $items.height());
}
$item.css({ top : t + 'px'});
});
},
pagination : function( $wrapper, dir, opts ) {
var config = $wrapper.data('config');
if( ( dir === 1 && config.currentRow + opts.rows > config.totalRows ) ||
( dir === -1 && config.currentRow - 1 <= 0 )
) {
$wrapper.data( 'anim', false );
return false;
}
var movingRows = '';
for( var i = 0; i <= opts.rows; ++i ) {
( dir === 1 )
? movingRows += '.tj_row_' + (config.currentRow + i) + ','
: movingRows += '.tj_row_' + (config.currentRow + (i - 1)) + ',';
}
var $elements;
( dir === 1 )
? $elements = $wrapper.children(movingRows)
: $elements = $wrapper.children(movingRows).reverse();
var total_elems = $elements.length,
cnt = 0;
$elements.each(function(i) {
var $el = $(this),
row = $el.attr('class'),
animParam = {},
currentRow = config.currentRow;
// if first row fade out
// if last row fade in
// for all the rows move them up / down
if( dir === 1 ) {
if( row === 'tj_row_' + (currentRow) ) {
animParam.opacity = 0;
}
else if( row === 'tj_row_' + (currentRow + opts.rows) ) {
animParam.opacity = 1;
}
}
else {
if( row === 'tj_row_' + (currentRow - 1) ) {
animParam.opacity = 1;
}
else if( row === 'tj_row_' + (currentRow + opts.rows - 1) ) {
animParam.opacity = 0;
}
}
$el.show();
(dir === 1)
? animParam.top = $el.position().top - $el.height() + 'px'
: animParam.top = $el.position().top + $el.height() + 'px'
$el.stop().animate(animParam, opts.type.speed, opts.type.easing, function() {
if( parseInt( animParam.top ) < 0 || parseInt( animParam.top ) > $el.height() * (opts.rows - 1) )
$el.hide();
++cnt;
if( cnt === total_elems ) {
$wrapper.data( 'anim', false );
}
});
});
(dir === 1) ? config.currentRow += 1 : config.currentRow -= 1;
$wrapper.data('config', config);
}
},
sequpdown : {
setup : function( $wrapper, $items, opts ) {
// same like updown mode
nav['updown'].setup( $wrapper, $items, opts );
},
pagination : function( $wrapper, dir, opts ) {
var config = $wrapper.data('config');
if( ( dir === 1 && config.currentRow + opts.rows > config.totalRows ) ||
( dir === -1 && config.currentRow - 1 <= 0 )
) {
$wrapper.data( 'anim', false );
return false;
}
var movingRows = [];
for( var i = 0; i <= opts.rows; ++i ) {
movingRows.push( dir === 1
? '.tj_row_' + (config.currentRow + i)
: '.tj_row_' + (config.currentRow + (i - 1)));
}
movingRows = movingRows.join(',')
var seq_t = opts.type.factor,
$elements;
var dircond = 1;
if( opts.type.reverse ) dircond = -1;
( dir === dircond )
? $elements = $wrapper.children(movingRows)
: $elements = $wrapper.children(movingRows).reverse();
var total_elems = $elements.length,
cnt = 0;
$elements.each(function(i) {
var $el = $(this),
row = $el.attr('class'),
animParam = {},
currentRow = config.currentRow;
setTimeout(function() {
// if first row fade out
// if last row fade in
// for all the rows move them up / down
if( dir === 1 ) {
if( row === 'tj_row_' + (currentRow) ) {
animParam.opacity = 0;
}
else if( row === 'tj_row_' + (currentRow + opts.rows) ) {
animParam.opacity = 1;
}
}
else {
if( row === 'tj_row_' + (currentRow - 1) ) {
animParam.opacity = 1;
}
else if( row === 'tj_row_' + (currentRow + opts.rows - 1) ) {
animParam.opacity = 0;
}
}
$el.show();
(dir === 1)
? animParam.top = $el.position().top - $el.height() + 'px'
: animParam.top = $el.position().top + $el.height() + 'px'
$el.stop().animate(animParam, opts.type.speed, opts.type.easing, function() {
if( parseInt( animParam.top ) < 0 || parseInt( animParam.top ) > $el.height() * (opts.rows - 1) )
$el.hide();
++cnt;
if( cnt === total_elems ) {
$wrapper.data( 'anim', false );
}
});
}, seq_t + i * seq_t);
});
(dir === 1) ? config.currentRow += 1 : config.currentRow -= 1;
$wrapper.data('config', config);
}
},
showhide : {
setup : function( $wrapper, $items, opts ) {
var config = $wrapper.data('config');
$items.each(function(i) {
var $item = $(this),
row = Math.ceil( (i + 1) / config.rowCount ),
t,
f = row % opts.rows;
if( f === 1 ) {
t = '0px';
} else if( f === 0 ) {
t = (opts.rows - 1) * $items.height() + 'px';
} else {
t = (f - 1) * $items.height() + 'px';
}
$item.css({ top : t });
});
},
pagination : function( $wrapper, dir, opts ) {
var config = $wrapper.data('config');
if( ( dir === 1 && config.currentRow + opts.rows > config.totalRows ) ||
( dir === -1 && config.currentRow - opts.rows <= 0 )
) {
$wrapper.data( 'anim', false );
return false;
}
var currentRows = '', nextRows = '';
for( var i = 0; i < opts.rows; ++i ) {
currentRows += '.tj_row_' + (config.currentRow + i) + ',';
(dir === 1)
? nextRows += '.tj_row_' + (config.currentRow + opts.rows + i) + ','
: nextRows += '.tj_row_' + (config.currentRow - 1 - i) + ',';
}
$wrapper.children(currentRows).hide( opts.type.speed, opts.type.easing );
var $nextRowElements= $wrapper.children(nextRows),
totalNextRows = $nextRowElements.length,
cnt = 0;
$nextRowElements.show( opts.type.speed, opts.type.easing, function() {
++cnt;
if( cnt === totalNextRows ) {
$wrapper.data( 'anim', false );
}
});
(dir === 1) ? config.currentRow += opts.rows : config.currentRow -= opts.rows;
$wrapper.data('config', config);
}
},
disperse : {
setup : function( $wrapper, $items, opts ) {
var config = $wrapper.data('config');
$items.each(function(i) {
var $item = $(this),
row = Math.ceil( (i + 1) / config.rowCount ),
t,
f = row % opts.rows;
if( f === 1 ) {
t = '0px';
} else if( f === 0 ) {
t = (opts.rows - 1) * $items.height() + 'px';
} else {
t = (f - 1) * $items.height() + 'px';
}
$item.css({ top : t }).data('top', t);
});
},
pagination : function( $wrapper, dir, opts ) {
var config = $wrapper.data('config');
if( ( dir === 1 && config.currentRow + opts.rows > config.totalRows ) ||
( dir === -1 && config.currentRow - opts.rows <= 0 )
) {
$wrapper.data( 'anim', false );
return false;
}
var currentRows = '', nextRows = '';
for( var i = 0; i < opts.rows; ++i ) {
currentRows += '.tj_row_' + (config.currentRow + i) + ',';
(dir === 1)
? nextRows += '.tj_row_' + (config.currentRow + opts.rows + i) + ','
: nextRows += '.tj_row_' + (config.currentRow - 1 - i) + ',';
}
$wrapper.children(currentRows).each(function(i) {
var $el = $(this);
$el.stop().animate({
left : $el.position().left + Math.floor( Math.random() * 101 ) - 50 + 'px',
top : $el.position().top + Math.floor( Math.random() * 101 ) - 50 + 'px',
opacity : 0
}, opts.type.speed, opts.type.easing, function() {
$el.css({
left : $el.data('left'),
top : $el.data('top')
}).hide();
});
});
var $nextRowElements = $wrapper.children(nextRows);
total_elems = $nextRowElements.length,
cnt = 0;
$nextRowElements.each(function(i) {
var $el = $(this);
$el.css({
left : parseInt($el.data('left')) + Math.floor( Math.random() * 301 ) - 150 + 'px',
top : parseInt($el.data('top')) + Math.floor( Math.random() * 301 ) - 150 + 'px',
opacity : 0
})
.show()
.animate({
left : $el.data('left'),
top : $el.data('top'),
opacity : 1
}, opts.type.speed, opts.type.easing, function() {
++cnt;
if( cnt === total_elems ) {
$wrapper.data( 'anim', false );
}
});
});
(dir === 1) ? config.currentRow += opts.rows : config.currentRow -= opts.rows;
$wrapper.data('config', config);
}
},
rows : {
setup : function( $wrapper, $items, opts ) {
// same like def mode
nav['def'].setup( $wrapper, $items, opts );
},
pagination : function( $wrapper, dir, opts ) {
var config = $wrapper.data('config');
if( ( dir === 1 && config.currentRow + opts.rows > config.totalRows ) ||
( dir === -1 && config.currentRow - opts.rows <= 0 )
) {
$wrapper.data( 'anim', false );
return false;
}
var currentRows = '', nextRows = '';
for( var i = 0; i < opts.rows; ++i ) {
currentRows += '.tj_row_' + (config.currentRow + i) + ',';
(dir === 1)
? nextRows += '.tj_row_' + (config.currentRow + opts.rows + i) + ','
: nextRows += '.tj_row_' + (config.currentRow - 1 - i) + ',';
}
$wrapper.children(currentRows).each(function(i) {
var $el = $(this),
rownmb = $el.attr('class').match(/tj_row_(\d+)/)[1],
diff;
if( rownmb%2 === 0 ) {
diff = opts.type.factor;
}
else {
diff = -opts.type.factor;
}
$el.stop().animate({
left : $el.position().left + diff + 'px',
opacity : 0
}, opts.type.speed, opts.type.easing, function() {
$el.css({
left : $el.data('left')
}).hide();
});
});
var $nextRowElements = $wrapper.children(nextRows);
total_elems = $nextRowElements.length,
cnt = 0;
$nextRowElements.each(function(i) {
var $el = $(this),
rownmb = $el.attr('class').match(/tj_row_(\d+)/)[1],
diff;
if( rownmb%2 === 0 ) {
diff = opts.type.factor;
}
else {
diff = -opts.type.factor;
}
$el.css({
left : parseInt($el.data('left')) + diff + 'px',
opacity : 0
})
.show()
.animate({
left : $el.data('left'),
opacity : 1
}, opts.type.speed, opts.type.easing, function() {
++cnt;
if( cnt === total_elems ) {
$wrapper.data( 'anim', false );
}
});
});
(dir === 1) ? config.currentRow += opts.rows : config.currentRow -= opts.rows;
$wrapper.data('config', config);
}
}
},
methods = {
init : function( options ) {
if( this.length ) {
var settings = {
rows : 2,
navL : '#tj_prev',
navR : '#tj_next',
type : {
mode : 'def', // use def | fade | seqfade | updown | sequpdown | showhide | disperse | rows
speed : 500, // for fade, seqfade, updown, sequpdown, showhide, disperse, rows
easing : 'jswing', // for fade, seqfade, updown, sequpdown, showhide, disperse, rows
factor : 50, // for seqfade, sequpdown, rows
reverse : false, // for sequpdown
timeout : 3000
}
};
return this.each(function() {
// if options exist, lets merge them with our default settings
if ( options ) {
$.extend( settings, options );
}
var $el = $(this).css( 'visibility', 'hidden' ),
// the ul
$wrapper = $el.find('ul.tj_gallery'),
// the items
$thumbs = $wrapper.children('li'),
total = $thumbs.length,
// the navigation elements
$p_nav = $(settings.navL),
$n_nav = $(settings.navR);
$timeout = settings.type.timeout;
$backToTop = true;
// save current row for later (first visible row)
//config.currentRow = 1;
// flag to control animation progress
$wrapper.data( 'anim', false );
// preload thumbs
var loaded = 0;
$thumbs.find('img').each( function(i) {
var $img = $(this);
$('<img/>').load( function() {
++loaded;
if( loaded === total ) {
// setup
aux.setup( $wrapper, $thumbs, settings );
$el.css( 'visibility', 'visible' );
// navigation events
if( $p_nav.length ) {
$p_nav.bind('click.gridnav', function( e ) {
clearInterval(_interval);
if( $wrapper.data( 'anim' ) ) return false;
$wrapper.data( 'anim', true );
nav[settings.type.mode].pagination( $wrapper, -1, settings );
return false;
});
}
if( $n_nav.length ) {
$n_nav.bind('click.gridnav', function( e ) {
clearInterval(_interval);
if( $wrapper.data( 'anim' ) ) return false;
$wrapper.data( 'anim', true );
nav[settings.type.mode].pagination( $wrapper, 1, settings );
return false;
});
}
/*
adds events to the mouse
*/
$el.bind('mousewheel.gridnav', function(e, delta) {
if(delta > 0) {
if( $wrapper.data( 'anim' ) ) return false;
$wrapper.data( 'anim', true );
nav[settings.type.mode].pagination( $wrapper, -1, settings );
}
else {
if( $wrapper.data( 'anim' ) ) return false;
$wrapper.data( 'anim', true );
nav[settings.type.mode].pagination( $wrapper, 1, settings );
}
return false;
});
}
}).attr( 'src', $img.attr('src') );
});
// auto scroll feature, the official plugin does not have so I added
function autoScroll() {
if( $wrapper.data( 'anim' ) ) return false;
config = $wrapper.data( 'config' );
if( (config.totalRows) === config.currentRow ) {
if( $backToTop === false ) $backToTop = true;
$wrapper.data( 'anim', true );
nav[settings.type.mode].pagination( $wrapper, -1, settings );
return false;
} else if( $backToTop === true ) {
if( config.currentRow === 1 ) {
$backToTop = false;
$wrapper.data( 'anim', true );
nav[settings.type.mode].pagination( $wrapper, 1, settings );
} else {
$wrapper.data( 'anim', true );
nav[settings.type.mode].pagination( $wrapper, -1, settings );
}
return false;
} else if( $backToTop === false ) {
$wrapper.data( 'anim', true );
nav[settings.type.mode].pagination( $wrapper, 1, settings );
return false;
}
};
if( $timeout > 0 ) {
var _interval = setInterval(autoScroll, $timeout);
// When hovering items
$wrapper.hover(
function() {
clearInterval(_interval);
},
function() {
_interval = setInterval(autoScroll, settings.type.timeout );
}
);
}
});
}
}
};
$.fn.gridnav = function(method) {
if ( methods[method] ) {
return methods[method].apply( this, Array.prototype.slice.call( arguments, 1 ));
} else if ( typeof method === 'object' || ! method ) {
return methods.init.apply( this, arguments );
} else {
$.error( 'Method ' + method + ' does not exist on jQuery.gridnav' );
}
};
})(jQuery);