[FEATURE] Core: added config option to specify init module

The bootstrap tag now allows to specify the init module via the
attribute data-sap-ui-oninit. When prefixing the module name with
"module:" the bootstrap identifies to require the given module.

The init module will be loaded via a timeout to ensure that the boot
step is completed before the module is required and loaded. This will
also ensure an async behavior for the init module.

Example usage:

<script id='sap-ui-bootstrap'
        data-sap-ui-oninit='module:sap/ui/test/Main'
        data-sap-ui-resourceroots='{"sap.ui.test": "./}'>
</script>

In addition, the Core#_executeOnInit has been extended looking up
specified functions instead of just evaluating the code. If you just
write a String without "module:" prefix and without brackets it will try
to lookup this function and execute it, e.g.:

<script>
    window.my = {
      initfn: function() { ... }
    };
</script>

<script id='sap-ui-bootstrap'
        data-sap-ui-oninit='my.initfn'>
</script>

or directly a function reference like this:

<script>
    function initfn() { ... }
</script>

<script id='sap-ui-bootstrap'
        data-sap-ui-oninit='initfn'>
</script>

or directly as code:

<script>
    function initfn() { ... }
</script>

<script id='sap-ui-bootstrap'
        data-sap-ui-oninit='initfn();'>
</script>

Change-Id: I64eb1926cdb494328214e44f0c2b547d018523e5

src/sap.ui.core/src/sap/ui/core/Configuration.js

@@ -92,7 +92,7 @@ sap.ui.define(['jquery.sap.global', '../Device', '../Global', '../base/Object',
 					"modules"               : { type : "string[]", defaultValue : [],        noUrl:true },
 					"areas"                 : { type : "string[]", defaultValue : null,      noUrl:true },
 					// "libs"               : { type : "string[]", defaultValue : [],        noUrl:true }, deprecated, handled below
-					"onInit"                : { type : "code",     defaultValue : undefined, noUrl:true },
+					"onInit"                : { type : "code",     defaultValue : undefined, noUrl:true }, // could be either a reference to a JavaScript function, the name of a global function (string value) or the name of a module (indicated with prefix "module:")
 					"uidPrefix"             : { type : "string",   defaultValue : "__",      noUrl:true },
 					"ignoreUrlParams"       : { type : "boolean",  defaultValue : false,     noUrl:true },
 					"preload"               : { type : "string",   defaultValue : "auto" },

src/sap.ui.core/src/sap/ui/core/Core.js

@@ -1104,17 +1104,30 @@ sap.ui.define(['jquery.sap.global', 'sap/ui/Device', 'sap/ui/Global',
 	};
 
 	Core.prototype._executeOnInit = function() {
-		var oConfig = this.oConfiguration;
+		var vOnInit = this.oConfiguration.onInit;
 
 		// execute a configured init hook
-		if ( oConfig.onInit ) {
-			if ( typeof oConfig.onInit === "function" ) {
-				oConfig.onInit();
-			} else {
-				// DO NOT USE jQuery.globalEval as it executes async in FF!
-				jQuery.sap.globalEval(oConfig.onInit);
+		if ( vOnInit ) {
+			if ( typeof vOnInit === "function" ) {
+				vOnInit();
+			} else if (typeof vOnInit === "string") {
+				// determine onInit being a module name prefixed via module or a global name
+				var aResult = /^module\:((?:(?:[_$a-zA-Z][_$a-zA-Z0-9]*)\/?)*)$/.exec(vOnInit);
+				if (aResult && aResult[1]) {
+					// ensure that the require is done async and the Core is finally booted!
+					setTimeout(sap.ui.require.bind(sap.ui, [aResult[1]]), 0);
+				} else {
+					// lookup the name specified in onInit and try to call the function directly
+					var fn = jQuery.sap.getObject(vOnInit);
+					if (typeof fn === "function") {
+						fn();
+					} else {
+						// DO NOT USE jQuery.globalEval as it executes async in FF!
+						jQuery.sap.globalEval(vOnInit);
+					}
+				}
 			}
-			oConfig.onInit = undefined;
+			this.oConfiguration.onInit = undefined;
 		}
 	};
 

src/sap.ui.core/test/sap/ui/core/qunit/bootstrap/BootstrapMainModule.js

@@ -0,0 +1,3 @@
+sap.ui.define(["sap/ui/core/Core"], function(Core) {
+	window["sap-ui-main"] = true;
+});

src/sap.ui.core/test/sap/ui/core/qunit/bootstrap/BootstrapMainModule.qunit.html

@@ -0,0 +1,41 @@
+<!DOCTYPE HTML>
+<!--
+  Tests the bootstrap variant with the attribute data-sap-ui-main specifying the main module
+
+  @author Peter Muessig
+  -->
+<html>
+	<head>
+		<meta http-equiv="X-UA-Compatible" content="IE=edge">
+		<meta charset="utf-8">
+		<title>Test Page for Bootstrap within Head</title>
+
+		<!-- Initialization -->
+		<link rel="stylesheet" href="../../../../../../resources/sap/ui/thirdparty/qunit.css" type="text/css" media="screen">
+		<script src="../../../../../../resources/sap/ui/thirdparty/qunit.js"></script>
+		<script src="../../../../../../resources/sap/ui/qunit/qunit-junit.js"></script>
+		<script src="../../shared-config.js"></script>
+		<script id="sap-ui-bootstrap"
+				src="../../../../../../resources/sap-ui-core.js"
+				data-sap-ui-oninit="module:sap/ui/test/BootstrapMainModule"
+				data-sap-ui-resourceroots='{"sap.ui.test": "./"}'
+				>
+		</script>
+		<script src="../../../../../../resources/sap/ui/qunit/QUnitUtils.js"></script>
+
+		<script>
+			QUnit.test("Check Main Module Functionality", function(assert) {
+				var done = assert.async();
+				sap.ui.getCore().attachInit(function() {
+					assert.ok(window["sap-ui-main"], "Main module has been loaded and executed.");
+					done();
+				});
+			});
+		</script>
+
+	</head>
+
+	<body class="sapUiBody" role="application">
+		<div id="qunit"></div>
+	</body>
+</html>

src/sap.ui.core/test/sap/ui/core/qunit/testsuites/testsuite.bootstrap.qunit.html

@@ -15,11 +15,11 @@
 			suite.addTestPage(contextPath + "/test-resources/sap/ui/core/qunit/bootstrap/BootstrapCustomBootTaskPreloadCss.qunit.html");
 			// @evo-todo re-enable or abandon "load-all" 
 			// suite.addTestPage(contextPath + "/test-resources/sap/ui/core/qunit/bootstrap/BootstrapLoadAll.qunit.html");
+			suite.addTestPage(contextPath + "/test-resources/sap/ui/core/qunit/bootstrap/BootstrapMainModule.qunit.html");
 			suite.addTestPage(contextPath + "/test-resources/sap/ui/core/qunit/bootstrap/BootstrapMinimal.qunit.html");
 			suite.addTestPage(contextPath + "/test-resources/sap/ui/core/qunit/bootstrap/BootstrapPreload.qunit.html");
 			suite.addTestPage(contextPath + "/test-resources/sap/ui/core/qunit/bootstrap/BootstrapPreloadAsync.qunit.html");
 			suite.addTestPage(contextPath + "/test-resources/sap/ui/core/qunit/bootstrap/BootstrapPreloadAuto.qunit.html");
-			suite.addTestPage(contextPath + "/test-resources/sap/ui/core/qunit/bootstrap/Bootstrap.qunit.html");
 			suite.addTestPage(contextPath + "/test-resources/sap/ui/core/qunit/bootstrap/BootstrapWithCustomBootTask.qunit.html");
 			suite.addTestPage(contextPath + "/test-resources/sap/ui/core/qunit/bootstrap/BootstrapWithCustomScript.qunit.html");
 			suite.addTestPage(contextPath + "/test-resources/sap/ui/core/qunit/bootstrap/BootstrapWithinBody.qunit.html");