• 扩展BootstrapTable的 冻结列~功能~完美!


    冻结左边6行的效果图:

    js代码:

    (function ($) {
        'use strict';

        $.extend($.fn.bootstrapTable.defaults, {
            leftFixedColumns: false,
            leftFixedNumber: 1,
            rightFixedColumns: false,
            rightFixedNumber: 1
        });

        var BootstrapTable = $.fn.bootstrapTable.Constructor,
            _initHeader = BootstrapTable.prototype.initHeader,
            _initBody = BootstrapTable.prototype.initBody,
            _resetView = BootstrapTable.prototype.resetView;

        BootstrapTable.prototype.initFixedColumns = function () {
            this.timeoutHeaderColumns_ = 0;
            this.timeoutBodyColumns_ = 0;
            if (this.options.leftFixedColumns) {
                this.$fixedBody = $([
                    '<div class="fixed-table-column" style="position: absolute; border-right:1px solid #ddd;">',
                    '<table>',
                    '<thead></thead>',
                    '<tbody></tbody>',
                    '</table>',
                    '</div>'].join(''));

                
                this.$fixedBody.find('table').attr('class', this.$el.attr('class'));
                this.$fixedHeaderColumns = this.$fixedBody.find('thead');
                this.$fixedBodyColumns = this.$fixedBody.find('tbody');
                this.$tableBody.before(this.$fixedBody);
            }
            if (this.options.rightFixedColumns) {
                this.$rightfixedBody = $([
                    '<div class="fixed-table-column" style="position: absolute;right:0px; border-right:1px solid #ddd;">',
                    '<table>',
                    '<thead></thead>',
                    '<tbody></tbody>',
                    '</table>',
                    '</div>'].join(''));

                this.$rightfixedBody.find('table').attr('class', this.$el.attr('class'));
                this.$rightfixedHeaderColumns = this.$rightfixedBody.find('thead');
                this.$rightfixedBodyColumns = this.$rightfixedBody.find('tbody');
                this.$tableBody.before(this.$rightfixedBody);
            }
        };

        BootstrapTable.prototype.initHeader = function () {
            _initHeader.apply(this, Array.prototype.slice.apply(arguments));

            if (!this.options.leftFixedColumns && !this.options.rightFixedColumns){
                return;
            }
            this.initFixedColumns();

            var $tr = this.$header.find('tr:eq(0)').clone(),
                $ths = $tr.clone().find('th');

            $tr.html('');
            //左边列冻结
            if (this.options.leftFixedColumns) {
                for (var i = 0; i < this.options.leftFixedNumber; i++) {
                    $tr.append($ths.eq(i).clone());
                }
                this.$fixedHeaderColumns.html('').append($tr);
            }

            //右边列冻结
            if (this.options.rightFixedColumns) {
                for (var i = 0; i < this.options.rightFixedNumber; i++) {
                    $tr.append($ths.eq($ths.length - this.options.rightFixedNumber + i).clone());
                }
                this.$rightfixedHeaderColumns.html('').append($tr);
            }
        };

        BootstrapTable.prototype.initBody = function () {
            _initBody.apply(this, Array.prototype.slice.apply(arguments));

            if (!this.options.leftFixedColumns && !this.options.rightFixedColumns) {
                return;
            }

            var that = this;
            if (this.options.leftFixedColumns) {
                this.$fixedBodyColumns.html('');
                this.$body.find('> tr[data-index]').each(function () {
                    var $tr = $(this).clone(),
                        $tds = $tr.clone().find('td');

                    $tr.html('');
                    for (var i = 0; i < that.options.leftFixedNumber; i++) {
                        $tr.append($tds.eq(i).clone());
                    }
                    that.$fixedBodyColumns.append($tr);
                });
            }
            if (this.options.rightFixedColumns) {
                this.$rightfixedBodyColumns.html('');
                this.$body.find('> tr[data-index]').each(function () {
                    var $tr = $(this).clone(),
                        $tds = $tr.clone().find('td');

                    $tr.html('');
                    for (var i = 0; i < that.options.rightFixedNumber; i++) {
                        var indexTd = $tds.length - that.options.rightFixedNumber + i;
                        var oldTd = $tds.eq(indexTd);
                        var fixTd = oldTd.clone();
                        var buttons = fixTd.find('button');
                        //事件转移:冻结列里面的事件转移到实际按钮的事件
                        buttons.each(function (key, item) {
                            $(item).click(function () {
                                that.$body.find("tr[data-index=" + $tr.attr('data-index') + "] td:eq(" + indexTd + ") button:eq(" + key + ")").click();
                            });
                        });
                        $tr.append(fixTd);
                    }
                    that.$rightfixedBodyColumns.append($tr);
                });
            }
        };

        BootstrapTable.prototype.resetView = function () {
            _resetView.apply(this, Array.prototype.slice.apply(arguments));

            if (!this.options.leftFixedColumns && !this.options.rightFixedColumns) {
                return;
            }

            clearTimeout(this.timeoutHeaderColumns_);
            this.timeoutHeaderColumns_ = setTimeout($.proxy(this.fitHeaderColumns, this), this.$el.is(':hidden') ? 100 : 0);

            clearTimeout(this.timeoutBodyColumns_);
            this.timeoutBodyColumns_ = setTimeout($.proxy(this.fitBodyColumns, this), this.$el.is(':hidden') ? 100 : 0);
        };

        BootstrapTable.prototype.fitHeaderColumns = function () {
            var that = this,
                visibleFields = this.getVisibleFields(),
                headerWidth = 0;
            if (that.options.leftFixedColumns) {
                this.$body.find('tr:first-child:not(.no-records-found) > *').each(function (i) {
                    var $this = $(this),
                        index = i;

                    if (i >= that.options.leftFixedNumber) {
                        return false;
                    }

                    if (that.options.detailView && !that.options.cardView) {
                        index = i - 1;
                    }

                    that.$fixedBody.find('thead th[data-field="' + visibleFields[index] + '"]')
                        .find('.fht-cell').width($this.innerWidth() - 1);
                    headerWidth += $this.outerWidth();
                });
                this.$fixedBody.width(headerWidth - 1).show();
            }
            if (that.options.rightFixedColumns) {
                this.$body.find('tr:first-child:not(.no-records-found) > *').each(function (i) {
                    var $this = $(this),
                        index = i;

                    if (i >= visibleFields.length - that.options.rightFixedNumber) {
                        that.$rightfixedBody.find('thead th[data-field="' + visibleFields[index] + '"]')
                            .find('.fht-cell').width($this.innerWidth() - 1);
                        headerWidth += $this.outerWidth();
                    }
                });
                this.$rightfixedBody.width(headerWidth - 1).show();
            }
        };

        BootstrapTable.prototype.fitBodyColumns = function () {
            var that = this,
                top = -(parseInt(this.$el.css('margin-top')) - 2),
                height = this.$tableBody.height() - 2;

            if (that.options.leftFixedColumns) {
                if (!this.$body.find('> tr[data-index]').length) {
                    this.$fixedBody.hide();
                    return;
                }

                this.$body.find('> tr').each(function (i) {
                    that.$fixedBody.find('tbody tr:eq(' + i + ')').height($(this).height());
                });

                //// events
                this.$tableBody.on('scroll', function () {
                    that.$fixedBody.find('table').css('top', -$(this).scrollTop());
                });
                this.$body.find('> tr[data-index]').off('hover').hover(function () {
                    var index = $(this).data('index');
                    that.$fixedBody.find('tr[data-index="' + index + '"]').addClass('hover');
                }, function () {
                    var index = $(this).data('index');
                    that.$fixedBody.find('tr[data-index="' + index + '"]').removeClass('hover');
                });
                this.$fixedBody.find('tr[data-index]').off('hover').hover(function () {
                    var index = $(this).data('index');
                    that.$body.find('tr[data-index="' + index + '"]').addClass('hover');
                }, function () {
                    var index = $(this).data('index');
                    that.$body.find('> tr[data-index="' + index + '"]').removeClass('hover');
                });
            }
            if (that.options.rightFixedColumns) {
                if (!this.$body.find('> tr[data-index]').length) {
                    this.$rightfixedBody.hide();
                    return;
                }

                this.$body.find('> tr').each(function (i) {
                    that.$rightfixedBody.find('tbody tr:eq(' + i + ')').height($(this).height());
                });

                //// events
                this.$tableBody.on('scroll', function () {
                    that.$rightfixedBody.find('table').css('top', -$(this).scrollTop());
                });
                this.$body.find('> tr[data-index]').off('hover').hover(function () {
                    var index = $(this).data('index');
                    that.$rightfixedBody.find('tr[data-index="' + index + '"]').addClass('hover');
                }, function () {
                    var index = $(this).data('index');
                    that.$rightfixedBody.find('tr[data-index="' + index + '"]').removeClass('hover');
                });
                this.$rightfixedBody.find('tr[data-index]').off('hover').hover(function () {
                    var index = $(this).data('index');
                    that.$body.find('tr[data-index="' + index + '"]').addClass('hover');
                }, function () {
                    var index = $(this).data('index');
                    that.$body.find('> tr[data-index="' + index + '"]').removeClass('hover');
                });
            }
        };

    })(jQuery);

    css代码

    .fixed-table-container thead th .th-inner, .fixed-table-container tbody td .th-inner {
        line-height: 18px;
    }

    .fixed-table-pagination .pagination a {
        padding: 5px 10px;
    }

    .fixed-table-toolbar .bars, .fixed-table-toolbar .search, .fixed-table-toolbar .columns {
        margin-top: 5px;
        margin-bottom: 5px;
    }

    bootstrap-table-fixed-columns.css

    太完美了~~~

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  • 原文地址:https://www.cnblogs.com/qingqinglanlan/p/9486137.html
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