angularjs使用div模拟textarea文本框

html:

<div class="simulate-textarea"
ng-model="view.text" contenteditable="true" placeholder="请输入内容"></div>

/**
* div模拟textarea输入框双向数据绑定指令
*/
.directive('contenteditable', [function() {
return {
require: 'ngModel',
link: function(scope, element, attrs, ctrl) {
//view -> model
element.bind('input', function() {
scope.$apply(function() {
ctrl.$setViewValue(element.html());
});
});
//model -> view
ctrl.$render = function() {
element.html(ctrl.$viewValue);
};
}
};
}

.simulate-textarea {
margin-left: 84px;
display: inline-block;
width: calc(100% - 84px);
/*border: 1px solid #dddddd;*/
min-height:20px;
_height: 20px;
max-height: 120px;
/*border-radius: 4px;*/
/*padding: 4px 6px;*/
outline: 0;
word-break:break-all;
word-wrap: break-word;
white-space: pre-wrap;
overflow-x: hidden;
overflow-y: auto;
line-height: 20px;
font-size: 12px;
}