自定义右键菜单

提示

本文为使用butterfly博客时魔改所写；其他用途仅做参考

预览

写在前面

我这里使用用的图标为阿里图标：i.iconfont.icon-xxx，你可自行替换类名将其设置为font awesome的图标

为了偷懒，js中还引用了jQuery，请在使用前将其引入或自行将js代码改为原生js

结构

首先，想要一个右键菜单，就得向页面中插入一个Dom结构
因为是右键唤醒菜单，与页面其他元素无关联，所以可以将此结构直接插入在body下
适配于butterfly主题，即新建一个rightmenu.pug文件（见下方），位置放在layout文件夹中即可
然后在themes/butterfly/layout/includes/layout.pug中引入（注意缩进）

doctype html
html(lang=config.language data-theme=theme.display_mode class=htmlClassHideAside)
  head
    include ./head.pug
  body
    ...

    else
      include ./404.pug

    include ./rightside.pug
    !=partial('includes/third-party/search/index', {}, {cache: true})
+    !=partial('includes/dorakika/rightmenu',{}, {cache:true})
    include ./additional-js.pug

rightmenu.pug

#rightMenu
	.rightMenu-group.rightMenu-small
		a.rightMenu-item(href="javascript:window.history.back();")
			i.iconfont.icon-back
		a.rightMenu-item(href="javascript:window.history.forward();")
			i.iconfont.icon-enter
		a.rightMenu-item(href="javascript:window.location.reload();")
			i.iconfont.icon-chexiao
		a.rightMenu-item(href="javascript:rmf.scrollToTop();")
			i.iconfont.icon-top
	.rightMenu-group.rightMenu-line.hide#menu-text
		a.rightMenu-item(href="javascript:rmf.copySelect();")
			i.iconfont.icon-copy
			span='复制'
	.rightMenu-group.rightMenu-line
		a.rightMenu-item(href="javascript:rmf.switchDarkMode();")
			i.iconfont.icon-DarkTheme
			span='昼夜切换'
		a.rightMenu-item(href="javascript:rmf.switchReadMode();")
			i.iconfont.icon-read
			span='阅读模式'

样式

现在，结构已经插入，如果此时预览，就会看到一堆文字被插入到页面底部。
样式文件没啥说的，学一下css就可以自己修改了。
你可以通过config.yml中的inject将其引入，也可以通过@import引入到.styl文件中

/* rightMenu */
#rightMenu{
	display: none;
	position: fixed;
	width: 160px;
	height: fit-content;
	top: 10%;
	left: 10%;
	background-color: var(--card-bg);
	border: 1px solid var(--font-color);
	border-radius: 8px;
	z-index: 100;
}
#rightMenu .rightMenu-group{
	padding: 7px 6px;
}
#rightMenu .rightMenu-group:not(:nth-last-child(1)){
	border-bottom: 1px solid var(--font-color);
}
#rightMenu .rightMenu-group.rightMenu-small{
	display: flex;
	justify-content: space-between;
}
#rightMenu .rightMenu-group .rightMenu-item{
	height: 30px;
	line-height: 30px;
	border-radius: 8px;
	transition: 0.3s;
	color: var(--font-color);
}
#rightMenu .rightMenu-group.rightMenu-line .rightMenu-item{
	display: flex;
	height: 40px;
	line-height: 40px;
	padding: 0 4px;
}
#rightMenu .rightMenu-group .rightMenu-item:hover{
	background-color: var(--text-bg-hover);
}
#rightMenu .rightMenu-group .rightMenu-item i{
	display: inline-block;
	text-align: center;
	line-height: 30px;
	width: 30px;
	height: 30px;
	padding: 0 5px;
}
#rightMenu .rightMenu-group .rightMenu-item span{
	line-height: 30px;
}

#rightMenu .rightMenu-group.rightMenu-line .rightMenu-item *{
	height: 40px;
	line-height: 40px;
}
.rightMenu-group.hide{
	display: none;
}

脚本

首先要实现的就是控制右键菜单的显示与隐藏：这里使用ontextmenu事件唤醒右键菜单，然后当点击事件发生后，关闭右键菜单
从上面的pug文件可以看出，是用a标签加上函数调用实现的各功能项
于是，就需要在一个全局对象身上定义一些函数来供这些a标签使用了：这里定义一个rmf对象（rightmenu function），来存放一些函数

let rmf = {};
rmf.showRightMenu = function(isTrue, x=0, y=0){
    let $rightMenu = $('#rightMenu');
    $rightMenu.css('top',x+'px').css('left',y+'px');

    if(isTrue){
        $rightMenu.show();
    }else{
        $rightMenu.hide();
    }
}
rmf.switchDarkMode = function(){
    const nowMode = document.documentElement.getAttribute('data-theme') === 'dark' ? 'dark' : 'light'
    if (nowMode === 'light') {
        activateDarkMode()
        saveToLocal.set('theme', 'dark', 2)
        GLOBAL_CONFIG.Snackbar !== undefined && btf.snackbarShow(GLOBAL_CONFIG.Snackbar.day_to_night)
    } else {
        activateLightMode()
        saveToLocal.set('theme', 'light', 2)
        GLOBAL_CONFIG.Snackbar !== undefined && btf.snackbarShow(GLOBAL_CONFIG.Snackbar.night_to_day)
    }
    // handle some cases
    typeof utterancesTheme === 'function' && utterancesTheme()
    typeof FB === 'object' && window.loadFBComment()
    window.DISQUS && document.getElementById('disqus_thread').children.length && setTimeout(() => window.disqusReset(), 200)
};
rmf.switchReadMode = function(){
    const $body = document.body
    $body.classList.add('read-mode')
    const newEle = document.createElement('button')
    newEle.type = 'button'
    newEle.className = 'fas fa-sign-out-alt exit-readmode'
    $body.appendChild(newEle)

    function clickFn () {
        $body.classList.remove('read-mode')
        newEle.remove()
        newEle.removeEventListener('click', clickFn)
    }

    newEle.addEventListener('click', clickFn)
}

//复制选中文字
rmf.copySelect = function(){
    document.execCommand('Copy',false,null);
    //这里可以写点东西提示一下 已复制
}

//回到顶部
rmf.scrollToTop = function(){
    btf.scrollToDest(0, 500);
}

// 右键菜单事件
if(! (navigator.userAgent.match(/(phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|BlackBerry|IEMobile|MQQBrowser|JUC|Fennec|wOSBrowser|BrowserNG|WebOS|Symbian|Windows Phone)/i))){
    window.oncontextmenu = function(event){
        $('.rightMenu-group.hide').hide();
        //如果有文字选中，则显示 文字选中相关的菜单项
        if(document.getSelection().toString()){
            $('#menu-text').show();
        }

        let pageX = event.clientX + 10;
        let pageY = event.clientY;
        let rmWidth = $('#rightMenu').width();
        let rmHeight = $('#rightMenu').height();
        if(pageX + rmWidth > window.innerWidth){
            pageX -= rmWidth+10;
        }
        if(pageY + rmHeight > window.innerHeight){
            pageY -= pageY + rmHeight - window.innerHeight;
        }



        rmf.showRightMenu(true, pageY, pageX);
        return false;
    };

    window.addEventListener('click',function(){rmf.showRightMenu(false);});
}