Liferay.provide 함수에 대한 이해

asynchronous dependency function의 old example is something like:

function incrementNumber(i){
    AUI.use('aui-base', function() { i++; });
}

new way to create the exact same function would be:

Liferay.provide(window, 'incrementNumber', function(i){i++;}, ['aui-base']);

advantages : scalability (multiple run), consistency (function will be excuted in the order they are called)

Liferay.provide(obj, methodName, methodFunc, modules)

obj : is the object where to create the method. (If you want to create a global function, obj will be 'window')

methodName : is the name of the method you want to create.

methodFunc : is the function definition as you would normally define it.

modules : is an array of javascript modules that will be loaded before the function is executed.

=> Liferay JSP file에서 Liferay provide 함수를 선언하는 것은 methodFunc 라는 함수를 하나 정의한 것과 같은 기능을 하는 것처럼 보인다. 즉, 함수 선언만 하고 call은 따로 해야된다.

Liferay.Util.openWindow( )

예제

Liferay.provide(
    window,
    '<portlet:namespace/> openDialogWithPortletUsingJsp',
    function() {
        var jspUrl = '<%=createAgency.toString()%>';
        console.log('JSP URL:' + jspUrl);
        Liferay.Util.openWindow({
            diaglog: {
                headerContent: '<h3>Agency Input</h3>',
                cache: false,
                destroyOnClose: true,
                centered: true,
                modal: true,
                resizable: false,
                width: 770,
                height: 370
            },
            id: '<portlet:namespace/>agencyDialog',
            title: '<liferay-ui:message key="Agency Create" />',
            url:jspUrl
        });
    },
['liferay-util-window', 'aui-dialog-iframe-deprecated', 'aui-io-plugin-deprecated', 'liferay-portlet-url', 'aui-node']
);

AUI().ready(function(A) {
    AUI().use('aui-dialog', 'aui-io', function(A) {
        var url = 'http://localhost/url';
        Liferay.Util.openWindow(
        {
            dialog: {
                cache: false,
                width:800,
                modal: true
            },
            id:'shahbaj',              
            uri: url
        });
        Liferay.provide(
            window,
           'closePopup',
            function(popupIdToClose) {
                var dialog = Liferay.Util.getWindow(popupIdToClose);
                dialog.destroy(); // You can try toggle/hide whatever You want
            },
            ['aui-base','aui-dialog','aui-dialog-iframe']
        );
    }); 
});