zoukankan      html  css  js  c++  java
  • bootstrap的导航改造

    在使用bootstrap制作后台时用到了响应式导航条,其中dropdown组件更是用的比较多,用的多需要点击的就多,dropdown默认鼠标左键单击才展开,如果使用鼠标放上去(hover)就展开则会省去点击时间,这样能提高效率。

    原本的改造思路是:给dropdown元素绑定hover事件,hover上去的时候,执行该元素的click事件——即把hover同步为clickhover即为click

    但想到与其自己来改造,不如先在网上搜索搜索看看有没有现成的插件,果不其然就搜索到了,托管在github上的代码网址:查看

    在这儿就直接把代码复制出来:

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    /*
     * Project: Twitter Bootstrap Hover Dropdown
     * Author: Cameron Spear
     * Contributors: Mattia Larentis
     *
     * Dependencies?: Twitter Bootstrap's Dropdown plugin
     *
     * A simple plugin to enable twitter bootstrap dropdowns to active on hover and provide a nice user experience.
     *
     * No license, do what you want. I'd love credit or a shoutout, though.
     *
     */
    ;(function($, window, undefined) {
        // outside the scope of the jQuery plugin to
        // keep track of all dropdowns
        var $allDropdowns = $();
             
        // if instantlyCloseOthers is true, then it will instantly
        // shut other nav items when a new one is hovered over
        $.fn.dropdownHover = function(options) {
             
            // the element we really care about
            // is the dropdown-toggle's parent
            $allDropdowns = $allDropdowns.add(this.parent());
             
            return this.each(function() {
                var $this = $(this).parent(),
                    defaults = {
                        delay: 500,
                        instantlyCloseOthers: true
                    },
                    data = {
                        delay: $(this).data('delay'),
                        instantlyCloseOthers: $(this).data('close-others')
                    },
                    options = $.extend(true, {}, defaults, options, data),
                    timeout;
             
                $this.hover(function() {
                    if(options.instantlyCloseOthers === true)
                        $allDropdowns.removeClass('open');
             
                    window.clearTimeout(timeout);
                    $(this).addClass('open');
                }, function() {
                    timeout = window.setTimeout(function() {
                        $this.removeClass('open');
                    }, options.delay);
                });
            });
        };
             
        $('[data-hover="dropdown"]').dropdownHover();
    })(jQuery, this);

    可以看到作者在插件前面加了个分号;,增加了插件的兼容性,因为可能上一个js代码没写;,如果在此不加分号则可能因为没换行导致js出错。

    插件支持HTML元素data-*传参,也支持初始化传参。将此js代码放在bootstrap原本的js代码后面执行即可。

  • 相关阅读:
    什么是跨域
    w3c标准
    什么是域名?什么网站名?什么是URL?
    meta是什么意思?
    什么是HTML、XML和XHTML
    html4.0.1,h5,xhml,文档声明区别
    checkbox 点击全选
    【今日CV 计算机视觉论文速览】Fri, 22 Mar 2019
    【机器翻译】API接口总结
    【今日CV 计算机视觉论文速览】Fri, 22 Mar 2019
  • 原文地址:https://www.cnblogs.com/goodbeypeterpan/p/4941798.html
Copyright © 2011-2022 走看看