compile and link 

<!DOCTYPE html>
<html data-ng-app="myApp">
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
</head>
<body data-ng-controller="myAppCtrl">
<data-compile-and-link>{{name}}</data-compile-and-link>
<level-one>
    <level-two>
        <level-three>
            Hello
        </level-three>
    </level-two>
</level-one>
</body>
<script src="angular.js"></script>
<script>
    var myApp = angular.module('myApp', []);
    myApp.controller('myAppCtrl', function ($scope) {
        $scope.name = 'Jackey';
    });

    //
    /* myApp.directive('compileAndLink', function () {
     return {
     restrict: 'E',
     controller: function ($scope, $element) {
     console.log('controlle:begin...');
     },
     compile: function (cElement, cAttrs) {
     console.log('compile:begin...');
     return {
     pre: function (preScope, preElement, preAttrs) {
     console.log('pre link:begin...');
     },
     post: function (postScope, postElement, postAttrs) {
     console.log('post link:begin...');
     }
     };
     },
     link: function (linkScope, linkEelemnt, linkAttr) {
     console.log('link begin...');
     }
     };
     });*/

    //result:
    //            compile:begin...
    //            index.html:21 controlle:begin...
    //            index.html:27 pre link:begin...
    //            index.html:30 post link:begin...
    //我们可以知道：directvie的先后顺序是compile - controller - pre - post 。。。
    //link没有执行，是因为link就是compile里面的post link了。

    function createDirective(name) {
        return function () {
            return {
                restrict: 'E',
                compile: function (tElem, tAttrs) {
                    console.log(name + ': compile');
                    return {
                        pre: function (scope, iElem, iAttrs) {
                            console.log(name + ': pre link');
                        },
                        post: function (scope, iElem, iAttrs) {
                            console.log(name + ': post link');
                        }
                    }
                }
            }
        }
    }
//    myApp.directive('levelOne', createDirective('levelOne'));
//    myApp.directive('levelTwo', createDirective('levelTwo'));
//    myApp.directive('levelThree', createDirective('levelThree'));

    //result:
    //    levelOne: compile
    //    levelTwo: compile
    //    levelThree: compile
    //    levelOne: pre link
    //    levelTwo: pre link
    //    levelThree: pre link
    //    levelThree: post link
    //    levelTwo: post link
    //    levelOne: post link

    function createDirective(name){
        return function(){
            return {
                restrict: 'E',
                compile: function(tElem, tAttrs){
                    console.log(name + ': compile => ' + tElem.html());
                    return {
                        pre: function(scope, iElem, iAttrs){
                            console.log(name + ': pre link => ' + iElem.html());
                        },
                        post: function(scope, iElem, iAttrs){
                            console.log(name + ': post link => ' + iElem.html());
                        }
                    }
                }
            }
        }
    }
    myApp.directive('levelOne', createDirective('levelOne'));
    myApp.directive('levelTwo', createDirective('levelTwo'));
    myApp.directive('levelThree', createDirective('levelThree'));

//    levelOne: compile =>
//    <level-two>
//    <level-three>
//    Hello
//    </level-three>
//    </level-two>
//
//    levelTwo: compile =>
//    <level-three>
//    Hello
//    </level-three>
//
//    levelThree: compile =>
//    Hello
//
//    levelOne: pre link =>
//    <level-two>
//    <level-three>
//    Hello
//    </level-three>
//    </level-two>
//
//    levelTwo: pre link =>
//    <level-three>
//    Hello
//    </level-three>
//
//    levelThree: pre link =>
//    Hello
//
//    levelThree: post link =>
//    Hello
//
//    levelTwo: post link =>
//    <level-three>
//    Hello
//    </level-three>
//
//    levelOne: post link =>
//    <level-two>
//    <level-three>
//    Hello
//    </level-three>
//    </level-two>

    //留意post link是一个反向的解析
</script>

</html>

 

posted @ 2015-06-08 21:28  菠萝君  阅读(229)  评论(0)    收藏  举报