结构-行为-样式-angularJs 指令实现滚动文字
最近在做XX项目的大屏展示页面,有一个表格需要用到这个滚动效果,于是就写了个指令,记录下,共同学习。
Html代码:
<td word-roll tword="item"> <div class="scroll_div fl"> <div class="scroll_begin" ng-bind="item.project"></div> <div class="scroll_end"></div> </div> </td>
样式代码:
.analysis .scroll_div { height: 26px; overflow: hidden; white-space: nowrap; width: 105px; margin-left: 10px; } .analysis .scroll_begin, .analysis .scroll_end { display: inline; }
指令Js代码:
define([ 'angular'], function() { var commonDirectives = angular.module("commonDirectives", []); //文字滚动 commonDirectives.directive('wordRoll', [function() { return { restrict: 'AE', scope:{ tword:'=' }, link: function(scope, ele, attr) { function ScrollImgLeft() { var speed = 50; var MyMar = null; var $begin = $(ele).find("div"); var scroll_begin = $begin.eq(1)[0]; var scroll_end = $begin.eq(2)[0]; var scroll_div = $begin.eq(0)[0]; if(scroll_begin.offsetWidth > scroll_div.offsetWidth){ scroll_end.innerHTML = scroll_begin.innerHTML; } function Marquee() { if (scroll_end.offsetWidth - scroll_div.scrollLeft <= 0) { scroll_div.scrollLeft -= scroll_begin.offsetWidth; }else { scroll_div.scrollLeft++; } } MyMar = setInterval(Marquee, speed); scroll_div.onmouseover = function () { clearInterval(MyMar); } scroll_div.onmouseout = function () { MyMar = setInterval(Marquee, speed); } } scope.$watch('tword',function(o,n){ ScrollImgLeft(); }) } } }]) })
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