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SNIPE-IT/public/js/extensions/sticky-header/bootstrap-table-sticky-header.js
vendored
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118
SNIPE-IT/public/js/extensions/sticky-header/bootstrap-table-sticky-header.js
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/**
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* @author vincent loh <vincent.ml@gmail.com>
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* @version: v1.1.0
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* https://github.com/vinzloh/bootstrap-table/
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* Sticky header for bootstrap-table
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* @update J Manuel Corona <jmcg92@gmail.com>
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*/
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(function ($) {
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'use strict';
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var sprintf = $.fn.bootstrapTable.utils.sprintf;
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$.extend($.fn.bootstrapTable.defaults, {
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stickyHeader: false
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});
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var bootstrapVersion = 3;
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try {
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bootstrapVersion = parseInt($.fn.dropdown.Constructor.VERSION, 10);
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} catch (e) { }
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var hidden_class = bootstrapVersion > 3 ? 'd-none' : 'hidden';
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var BootstrapTable = $.fn.bootstrapTable.Constructor,
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_initHeader = BootstrapTable.prototype.initHeader;
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BootstrapTable.prototype.initHeader = function () {
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var that = this;
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_initHeader.apply(this, Array.prototype.slice.apply(arguments));
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if (!this.options.stickyHeader) {
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return;
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}
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var table = this.$tableBody.find('table'),
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table_id = table.attr('id'),
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header_id = table.attr('id') + '-sticky-header',
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sticky_header_container_id = header_id +'-sticky-header-container',
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anchor_begin_id = header_id +'_sticky_anchor_begin',
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anchor_end_id = header_id +'_sticky_anchor_end';
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// add begin and end anchors to track table position
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table.before(sprintf('<div id="%s" class="%s"></div>', sticky_header_container_id, hidden_class));
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table.before(sprintf('<div id="%s"></div>', anchor_begin_id));
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table.after(sprintf('<div id="%s"></div>', anchor_end_id));
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table.find('thead').attr('id', header_id);
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// clone header just once, to be used as sticky header
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// deep clone header. using source header affects tbody>td width
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this.$stickyHeader = $($('#'+header_id).clone(true, true));
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// avoid id conflict
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this.$stickyHeader.removeAttr('id');
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// render sticky on window scroll or resize
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$(window).on('resize.'+table_id, table, render_sticky_header);
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$(window).on('scroll.'+table_id, table, render_sticky_header);
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// render sticky when table scroll left-right
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table.closest('.fixed-table-container').find('.fixed-table-body').on('scroll.'+table_id, table, match_position_x);
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this.$el.on('all.bs.table', function (e) {
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that.$stickyHeader = $($('#'+header_id).clone(true, true));
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that.$stickyHeader.removeAttr('id');
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});
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function render_sticky_header(event) {
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var table = event.data;
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var table_header_id = table.find('thead').attr('id');
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// console.log('render_sticky_header for > '+table_header_id);
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if (table.length < 1 || $('#'+table_id).length < 1){
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// turn off window listeners
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$(window).off('resize.'+table_id);
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$(window).off('scroll.'+table_id);
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table.closest('.fixed-table-container').find('.fixed-table-body').off('scroll.'+table_id);
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return;
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}
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// get header height
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var header_height = '0';
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if (that.options.stickyHeaderOffsetY) header_height = that.options.stickyHeaderOffsetY.replace('px','');
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// window scroll top
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var t = $(window).scrollTop();
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// top anchor scroll position, minus header height
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var e = $("#"+anchor_begin_id).offset().top - header_height;
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// bottom anchor scroll position, minus header height, minus sticky height
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var e_end = $("#"+anchor_end_id).offset().top - header_height - $('#'+table_header_id).css('height').replace('px','');
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// show sticky when top anchor touches header, and when bottom anchor not exceeded
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if (t > e && t <= e_end) {
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// ensure clone and source column widths are the same
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$.each( that.$stickyHeader.find('tr').eq(0).find('th'), function (index, item) {
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$(item).css('min-width', $('#'+table_header_id+' tr').eq(0).find('th').eq(index).css('width'));
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});
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// match bootstrap table style
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$("#"+sticky_header_container_id).removeClass(hidden_class).addClass("fix-sticky fixed-table-container") ;
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// stick it in position
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$("#"+sticky_header_container_id).css('top', header_height + 'px');
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// create scrollable container for header
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var scrollable_div = $('<div style="position:absolute;width:100%;overflow-x:hidden;" />');
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// append cloned header to dom
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$("#"+sticky_header_container_id).html(scrollable_div.append(that.$stickyHeader));
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// match clone and source header positions when left-right scroll
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match_position_x(event);
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} else {
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// hide sticky
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$("#"+sticky_header_container_id).removeClass("fix-sticky").addClass(hidden_class);
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}
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}
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function match_position_x(event){
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var table = event.data;
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var table_header_id = table.find('thead').attr('id');
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// match clone and source header positions when left-right scroll
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$("#"+sticky_header_container_id).css(
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'width', +table.closest('.fixed-table-body').css('width').replace('px', '') + 1
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);
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$("#"+sticky_header_container_id+" thead").parent().scrollLeft(Math.abs($('#'+table_header_id).position().left));
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}
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};
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})(jQuery);
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