angular.js - angular封装echart自适应问题

Question

自己封装了一个echarts

angular.module('docms')
.directive('eChart', function () {
        var eChartDirective = {
            restrict:'EA',
            template:'<p></p>',
            replace:true,
            scope:{
                option:'='
            },
            link:function(scope,eles,attrs,ctrl){
                var chart = echarts.init(eles[0]);
                scope.$watch('option',function(newOption){
                    chart = echarts.init(eles[0]);
                    chart.setOption(newOption);
                },true);
                window.addEventListener('resize',function(){
                    chart.resize();
                })



            }
        }
        return eChartDirective;
    })

<p ng-class="{true:'col-sm-12',false:'col-sm-6'}[width]">
    <e-chart option = "option"></e-chart>
</p>   

原来父元素p只占50%，后续由于ng-class调整至100%，
但是绘图在50%时已经完成了，现在我只能实现窗口大小调整时的重绘，有没有什么办法监控父元素宽度的变化，在变化时重绘cavans？

Answer 1

Thanks for the invitation.

Here you can pass the variable that causes the class change of p to the eChart component.

angular.module('docms')
.directive('eChart', function () {
        var eChartDirective = {
            restrict:'EA',
            template:'<p></p>',
            replace:true,
            scope:{
                option:'=',
                forceRender:'='
            },
            link:function(scope,eles,attrs,ctrl){
                var chart = echarts.init(eles[0]);
                scope.$watch('option',function(newOption){
                    chart = echarts.init(eles[0]);
                    chart.setOption(newOption);
                },true);
                scope.$watch('forceRender',function(newOption){
                    chart.resize();
                },true);
                window.addEventListener('resize',function(){
                    chart.resize();
                })
            }
        }
        return eChartDirective;
    })

<p ng-class="{true:'col-sm-12',false:'col-sm-6'}[width]">
    <e-chart option="option" force-render="width"></e-chart>
</p>