mirror of
https://github.com/Mottie/tablesorter.git
synced 2024-11-15 23:54:22 +00:00
272 lines
11 KiB
JavaScript
272 lines
11 KiB
JavaScript
/*! Widget: stickyHeaders - updated 3/5/2015 (v2.21.0) *//*
|
|
* Requires tablesorter v2.8+ and jQuery 1.4.3+
|
|
* by Rob Garrison
|
|
*/
|
|
;(function ($, window) {
|
|
'use strict';
|
|
var ts = $.tablesorter = $.tablesorter || {};
|
|
|
|
$.extend(ts.css, {
|
|
sticky : 'tablesorter-stickyHeader', // stickyHeader
|
|
stickyVis : 'tablesorter-sticky-visible',
|
|
stickyHide: 'tablesorter-sticky-hidden',
|
|
stickyWrap: 'tablesorter-sticky-wrapper'
|
|
});
|
|
|
|
// Add a resize event to table headers
|
|
ts.addHeaderResizeEvent = function(table, disable, settings) {
|
|
table = $(table)[0]; // make sure we're using a dom element
|
|
var headers,
|
|
defaults = {
|
|
timer : 250
|
|
},
|
|
options = $.extend({}, defaults, settings),
|
|
c = table.config,
|
|
wo = c.widgetOptions,
|
|
checkSizes = function(triggerEvent) {
|
|
wo.resize_flag = true;
|
|
headers = [];
|
|
c.$headers.each(function() {
|
|
var $header = $(this),
|
|
sizes = $header.data('savedSizes') || [0,0], // fixes #394
|
|
width = this.offsetWidth,
|
|
height = this.offsetHeight;
|
|
if (width !== sizes[0] || height !== sizes[1]) {
|
|
$header.data('savedSizes', [ width, height ]);
|
|
headers.push(this);
|
|
}
|
|
});
|
|
if (headers.length && triggerEvent !== false) {
|
|
c.$table.trigger('resize', [ headers ]);
|
|
}
|
|
wo.resize_flag = false;
|
|
};
|
|
checkSizes(false);
|
|
clearInterval(wo.resize_timer);
|
|
if (disable) {
|
|
wo.resize_flag = false;
|
|
return false;
|
|
}
|
|
wo.resize_timer = setInterval(function() {
|
|
if (wo.resize_flag) { return; }
|
|
checkSizes();
|
|
}, options.timer);
|
|
};
|
|
|
|
// Sticky headers based on this awesome article:
|
|
// http://css-tricks.com/13465-persistent-headers/
|
|
// and https://github.com/jmosbech/StickyTableHeaders by Jonas Mosbech
|
|
// **************************
|
|
ts.addWidget({
|
|
id: "stickyHeaders",
|
|
priority: 60, // sticky widget must be initialized after the filter widget!
|
|
options: {
|
|
stickyHeaders : '', // extra class name added to the sticky header row
|
|
stickyHeaders_attachTo : null, // jQuery selector or object to attach sticky header to
|
|
stickyHeaders_xScroll : null, // jQuery selector or object to monitor horizontal scroll position (defaults: xScroll > attachTo > window)
|
|
stickyHeaders_yScroll : null, // jQuery selector or object to monitor vertical scroll position (defaults: yScroll > attachTo > window)
|
|
stickyHeaders_offset : 0, // number or jquery selector targeting the position:fixed element
|
|
stickyHeaders_filteredToTop: true, // scroll table top into view after filtering
|
|
stickyHeaders_cloneId : '-sticky', // added to table ID, if it exists
|
|
stickyHeaders_addResizeEvent : true, // trigger "resize" event on headers
|
|
stickyHeaders_includeCaption : true, // if false and a caption exist, it won't be included in the sticky header
|
|
stickyHeaders_zIndex : 2 // The zIndex of the stickyHeaders, allows the user to adjust this to their needs
|
|
},
|
|
format: function(table, c, wo) {
|
|
// filter widget doesn't initialize on an empty table. Fixes #449
|
|
if ( c.$table.hasClass('hasStickyHeaders') || ($.inArray('filter', c.widgets) >= 0 && !c.$table.hasClass('hasFilters')) ) {
|
|
return;
|
|
}
|
|
var $table = c.$table,
|
|
// add position: relative to attach element, hopefully it won't cause trouble.
|
|
$attach = $(wo.stickyHeaders_attachTo),
|
|
namespace = c.namespace + 'stickyheaders ',
|
|
// element to watch for the scroll event
|
|
$yScroll = $(wo.stickyHeaders_yScroll || wo.stickyHeaders_attachTo || window),
|
|
$xScroll = $(wo.stickyHeaders_xScroll || wo.stickyHeaders_attachTo || window),
|
|
$thead = $table.children('thead:first'),
|
|
$header = $thead.children('tr').not('.sticky-false').children(),
|
|
$tfoot = $table.children('tfoot'),
|
|
$stickyOffset = isNaN(wo.stickyHeaders_offset) ? $(wo.stickyHeaders_offset) : '',
|
|
stickyOffset = $stickyOffset.length ? $stickyOffset.height() || 0 : parseInt(wo.stickyHeaders_offset, 10) || 0,
|
|
// is this table nested? If so, find parent sticky header wrapper (div, not table)
|
|
$nestedSticky = $table.parent().closest('.' + ts.css.table).hasClass('hasStickyHeaders') ?
|
|
$table.parent().closest('table.tablesorter')[0].config.widgetOptions.$sticky.parent() : [],
|
|
nestedStickyTop = $nestedSticky.length ? $nestedSticky.height() : 0,
|
|
// clone table, then wrap to make sticky header
|
|
$stickyTable = wo.$sticky = $table.clone()
|
|
.addClass('containsStickyHeaders ' + ts.css.sticky + ' ' + wo.stickyHeaders + ' ' + c.namespace.slice(1) + '_extra_table' )
|
|
.wrap('<div class="' + ts.css.stickyWrap + '">'),
|
|
$stickyWrap = $stickyTable.parent()
|
|
.addClass(ts.css.stickyHide)
|
|
.css({
|
|
position : $attach.length ? 'absolute' : 'fixed',
|
|
padding : parseInt( $stickyTable.parent().parent().css('padding-left'), 10 ),
|
|
top : stickyOffset + nestedStickyTop,
|
|
left : 0,
|
|
visibility : 'hidden',
|
|
zIndex : wo.stickyHeaders_zIndex || 2
|
|
}),
|
|
$stickyThead = $stickyTable.children('thead:first'),
|
|
$stickyCells,
|
|
laststate = '',
|
|
spacing = 0,
|
|
setWidth = function($orig, $clone){
|
|
$orig.filter(':visible').each(function(i) {
|
|
var width, border,
|
|
$cell = $clone.filter(':visible').eq(i),
|
|
$this = $(this);
|
|
// code from https://github.com/jmosbech/StickyTableHeaders
|
|
if ($this.css('box-sizing') === 'border-box') {
|
|
width = $this.outerWidth();
|
|
} else {
|
|
if ($cell.css('border-collapse') === 'collapse') {
|
|
if (window.getComputedStyle) {
|
|
width = parseFloat( window.getComputedStyle(this, null).width );
|
|
} else {
|
|
// ie8 only
|
|
border = parseFloat( $this.css('border-width') );
|
|
width = $this.outerWidth() - parseFloat( $this.css('padding-left') ) - parseFloat( $this.css('padding-right') ) - border;
|
|
}
|
|
} else {
|
|
width = $this.width();
|
|
}
|
|
}
|
|
$cell.css({
|
|
'min-width': width,
|
|
'max-width': width
|
|
});
|
|
});
|
|
},
|
|
resizeHeader = function() {
|
|
stickyOffset = $stickyOffset.length ? $stickyOffset.height() || 0 : parseInt(wo.stickyHeaders_offset, 10) || 0;
|
|
spacing = 0;
|
|
$stickyWrap.css({
|
|
left : $attach.length ? parseInt($attach.css('padding-left'), 10) || 0 :
|
|
$table.offset().left - parseInt($table.css('margin-left'), 10) - $xScroll.scrollLeft() - spacing,
|
|
width: $table.outerWidth()
|
|
});
|
|
setWidth( $table, $stickyTable );
|
|
setWidth( $header, $stickyCells );
|
|
};
|
|
// only add a position relative if a position isn't already defined
|
|
if ($attach.length && !$attach.css('position')) {
|
|
$attach.css('position', 'relative');
|
|
}
|
|
// fix clone ID, if it exists - fixes #271
|
|
if ($stickyTable.attr('id')) { $stickyTable[0].id += wo.stickyHeaders_cloneId; }
|
|
// clear out cloned table, except for sticky header
|
|
// include caption & filter row (fixes #126 & #249) - don't remove cells to get correct cell indexing
|
|
$stickyTable.find('thead:gt(0), tr.sticky-false').hide();
|
|
$stickyTable.find('tbody, tfoot').remove();
|
|
$stickyTable.find('caption').toggle(wo.stickyHeaders_includeCaption);
|
|
// issue #172 - find td/th in sticky header
|
|
$stickyCells = $stickyThead.children().children();
|
|
$stickyTable.css({ height:0, width:0, margin: 0 });
|
|
// remove resizable block
|
|
$stickyCells.find('.' + ts.css.resizer).remove();
|
|
// update sticky header class names to match real header after sorting
|
|
$table
|
|
.addClass('hasStickyHeaders')
|
|
.bind('pagerComplete' + namespace, function() {
|
|
resizeHeader();
|
|
});
|
|
|
|
ts.bindEvents(table, $stickyThead.children().children('.' + ts.css.header));
|
|
|
|
// add stickyheaders AFTER the table. If the table is selected by ID, the original one (first) will be returned.
|
|
$table.after( $stickyWrap );
|
|
|
|
// onRenderHeader is defined, we need to do something about it (fixes #641)
|
|
if (c.onRenderHeader) {
|
|
$stickyThead.children('tr').children().each(function(index){
|
|
// send second parameter
|
|
c.onRenderHeader.apply( $(this), [ index, c, $stickyTable ] );
|
|
});
|
|
}
|
|
|
|
// make it sticky!
|
|
$xScroll.add($yScroll)
|
|
.unbind( ('scroll resize '.split(' ').join( namespace )).replace(/\s+/g, ' ') )
|
|
.bind('scroll resize '.split(' ').join( namespace ), function(event) {
|
|
if (!$table.is(':visible')) { return; } // fixes #278
|
|
// Detect nested tables - fixes #724
|
|
nestedStickyTop = $nestedSticky.length ? $nestedSticky.offset().top - $yScroll.scrollTop() + $nestedSticky.height() : 0;
|
|
var offset = $table.offset(),
|
|
yWindow = $.isWindow( $yScroll[0] ), // $.isWindow needs jQuery 1.4.3
|
|
xWindow = $.isWindow( $xScroll[0] ),
|
|
// scrollTop = ( $attach.length ? $attach.offset().top : $yScroll.scrollTop() ) + stickyOffset + nestedStickyTop,
|
|
scrollTop = ( $attach.length ? ( yWindow ? $yScroll.scrollTop() : $yScroll.offset().top ) : $yScroll.scrollTop() ) + stickyOffset + nestedStickyTop,
|
|
tableHeight = $table.height() - ($stickyWrap.height() + ($tfoot.height() || 0)),
|
|
isVisible = ( scrollTop > offset.top ) && ( scrollTop < offset.top + tableHeight ) ? 'visible' : 'hidden',
|
|
cssSettings = { visibility : isVisible };
|
|
|
|
if ($attach.length) {
|
|
cssSettings.top = yWindow ? scrollTop - $attach.offset().top : $attach.scrollTop();
|
|
}
|
|
if (xWindow) {
|
|
// adjust when scrolling horizontally - fixes issue #143
|
|
cssSettings.left = $table.offset().left - parseInt($table.css('margin-left'), 10) - $xScroll.scrollLeft() - spacing;
|
|
}
|
|
if ($nestedSticky.length) {
|
|
cssSettings.top = ( cssSettings.top || 0 ) + stickyOffset + nestedStickyTop;
|
|
}
|
|
$stickyWrap
|
|
.removeClass( ts.css.stickyVis + ' ' + ts.css.stickyHide )
|
|
.addClass( isVisible === 'visible' ? ts.css.stickyVis : ts.css.stickyHide )
|
|
.css(cssSettings);
|
|
if (isVisible !== laststate || event.type === 'resize') {
|
|
// make sure the column widths match
|
|
resizeHeader();
|
|
laststate = isVisible;
|
|
}
|
|
});
|
|
if (wo.stickyHeaders_addResizeEvent) {
|
|
ts.addHeaderResizeEvent(table);
|
|
}
|
|
|
|
// look for filter widget
|
|
if ($table.hasClass('hasFilters') && wo.filter_columnFilters) {
|
|
// scroll table into view after filtering, if sticky header is active - #482
|
|
$table.bind('filterEnd' + namespace, function() {
|
|
// $(':focus') needs jQuery 1.6+
|
|
var $td = $(document.activeElement).closest('td'),
|
|
column = $td.parent().children().index($td);
|
|
// only scroll if sticky header is active
|
|
if ($stickyWrap.hasClass(ts.css.stickyVis) && wo.stickyHeaders_filteredToTop) {
|
|
// scroll to original table (not sticky clone)
|
|
window.scrollTo(0, $table.position().top);
|
|
// give same input/select focus; check if c.$filters exists; fixes #594
|
|
if (column >= 0 && c.$filters) {
|
|
c.$filters.eq(column).find('a, select, input').filter(':visible').focus();
|
|
}
|
|
}
|
|
});
|
|
ts.filter.bindSearch( $table, $stickyCells.find('.' + ts.css.filter) );
|
|
// support hideFilters
|
|
if (wo.filter_hideFilters) {
|
|
ts.filter.hideFilters($stickyTable, c);
|
|
}
|
|
}
|
|
|
|
$table.trigger('stickyHeadersInit');
|
|
|
|
},
|
|
remove: function(table, c, wo) {
|
|
var namespace = c.namespace + 'stickyheaders ';
|
|
c.$table
|
|
.removeClass('hasStickyHeaders')
|
|
.unbind( ('pagerComplete filterEnd '.split(' ').join(namespace)).replace(/\s+/g, ' ') )
|
|
.next('.' + ts.css.stickyWrap).remove();
|
|
if (wo.$sticky && wo.$sticky.length) { wo.$sticky.remove(); } // remove cloned table
|
|
$(window)
|
|
.add(wo.stickyHeaders_xScroll)
|
|
.add(wo.stickyHeaders_yScroll)
|
|
.add(wo.stickyHeaders_attachTo)
|
|
.unbind( ('scroll resize '.split(' ').join(namespace)).replace(/\s+/g, ' ') );
|
|
ts.addHeaderResizeEvent(table, false);
|
|
}
|
|
});
|
|
|
|
})(jQuery, window);
|