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author | Teemu Suo-Anttila <teemusa@vaadin.com> | 2016-03-10 22:40:51 +0200 |
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committer | Teemu Suo-Anttila <teemusa@vaadin.com> | 2016-03-14 07:59:12 +0200 |
commit | a6653d3fe49e6a97468ac09f7f2f4d621bea1078 (patch) | |
tree | 96c82e20ca6551ee4c14c8877f0258b25c63cddf /server/src/com/vaadin/ui/AbstractJavaScriptComponent.java | |
parent | f7e57d77ce621ee39167369c31d989edc5633266 (diff) | |
download | vaadin-framework-a6653d3fe49e6a97468ac09f7f2f4d621bea1078.tar.gz vaadin-framework-a6653d3fe49e6a97468ac09f7f2f4d621bea1078.zip |
Migrate vaadin-server build to maven
Change-Id: I5c740f4e9cb28103bab199f9a552153d82277e7e
Diffstat (limited to 'server/src/com/vaadin/ui/AbstractJavaScriptComponent.java')
-rw-r--r-- | server/src/com/vaadin/ui/AbstractJavaScriptComponent.java | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/server/src/com/vaadin/ui/AbstractJavaScriptComponent.java b/server/src/com/vaadin/ui/AbstractJavaScriptComponent.java deleted file mode 100644 index 68ff947137..0000000000 --- a/server/src/com/vaadin/ui/AbstractJavaScriptComponent.java +++ /dev/null @@ -1,198 +0,0 @@ -/* - * Copyright 2000-2014 Vaadin Ltd. - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may not - * use this file except in compliance with the License. You may obtain a copy of - * the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the - * License for the specific language governing permissions and limitations under - * the License. - */ -package com.vaadin.ui; - -import com.vaadin.server.JavaScriptCallbackHelper; -import com.vaadin.server.JsonCodec; -import com.vaadin.shared.communication.ServerRpc; -import com.vaadin.shared.ui.JavaScriptComponentState; - -import elemental.json.Json; -import elemental.json.JsonValue; - -/** - * Base class for Components with all client-side logic implemented using - * JavaScript. - * <p> - * When a new JavaScript component is initialized in the browser, the framework - * will look for a globally defined JavaScript function that will initialize the - * component. The name of the initialization function is formed by replacing . - * with _ in the name of the server-side class. If no such function is defined, - * each super class is used in turn until a match is found. The framework will - * thus first attempt with <code>com_example_MyComponent</code> for the - * server-side - * <code>com.example.MyComponent extends AbstractJavaScriptComponent</code> - * class. If MyComponent instead extends <code>com.example.SuperComponent</code> - * , then <code>com_example_SuperComponent</code> will also be attempted if - * <code>com_example_MyComponent</code> has not been defined. - * <p> - * JavaScript components have a very simple GWT widget ( - * {@link com.vaadin.client.ui.JavaScriptWidget} ) just consisting of a - * <code>div</code> element to which the JavaScript code should initialize its - * own user interface. - * <p> - * The initialization function will be called with <code>this</code> pointing to - * a connector wrapper object providing integration to Vaadin. Please note that - * in JavaScript, <code>this</code> is not necessarily defined inside callback - * functions and it might therefore be necessary to assign the reference to a - * separate variable, e.g. <code>var self = this;</code>. The following - * functions are provided by the connector wrapper object: - * <ul> - * <li><code>getConnectorId()</code> - returns a string with the id of the - * connector.</li> - * <li><code>getParentId([connectorId])</code> - returns a string with the id of - * the connector's parent. If <code>connectorId</code> is provided, the id of - * the parent of the corresponding connector with the passed id is returned - * instead.</li> - * <li><code>getElement([connectorId])</code> - returns the DOM Element that is - * the root of a connector's widget. <code>null</code> is returned if the - * connector can not be found or if the connector doesn't have a widget. If - * <code>connectorId</code> is not provided, the connector id of the current - * connector will be used.</li> - * <li><code>getState()</code> - returns an object corresponding to the shared - * state defined on the server. The scheme for conversion between Java and - * JavaScript types is described bellow.</li> - * <li><code>registerRpc([name, ] rpcObject)</code> - registers the - * <code>rpcObject</code> as a RPC handler. <code>rpcObject</code> should be an - * object with field containing functions for all eligible RPC functions. If - * <code>name</code> is provided, the RPC handler will only used for RPC calls - * for the RPC interface with the same fully qualified Java name. If no - * <code>name</code> is provided, the RPC handler will be used for all incoming - * RPC invocations where the RPC method name is defined as a function field in - * the handler. The scheme for conversion between Java types in the RPC - * interface definition and the JavaScript values passed as arguments to the - * handler functions is described bellow.</li> - * <li><code>getRpcProxy([name])</code> - returns an RPC proxy object. If - * <code>name</code> is provided, the proxy object will contain functions for - * all methods in the RPC interface with the same fully qualified name, provided - * a RPC handler has been registered by the server-side code. If no - * <code>name</code> is provided, the returned RPC proxy object will contain - * functions for all methods in all RPC interfaces registered for the connector - * on the server. If the same method name is present in multiple registered RPC - * interfaces, the corresponding function in the RPC proxy object will throw an - * exception when called. The scheme for conversion between Java types in the - * RPC interface and the JavaScript values that should be passed to the - * functions is described bellow.</li> - * <li><code>translateVaadinUri(uri)</code> - Translates a Vaadin URI to a URL - * that can be used in the browser. This is just way of accessing - * {@link com.vaadin.client.ApplicationConnection#translateVaadinUri(String)}</li> - * <li><code>addResizeListener(element, callbackFunction)</code> - Registers a - * listener that gets notified whenever the size of the provided element - * changes. The listener is called with one parameter: an event object with the - * <code>element</code> property pointing to the element that has been resized. - * <li><code>removeResizeListener(element, callbackFunction)</code> - - * Unregisters a combination of an element and a listener that has previously - * been registered using <code>addResizeListener</code>. All registered - * listeners are automatically unregistered when this connector is unregistered, - * but this method can be use to to unregister a listener at an earlier point in - * time. - * </ul> - * The connector wrapper also supports these special functions: - * <ul> - * <li><code>onStateChange</code> - If the JavaScript code assigns a function to - * the field, that function is called whenever the contents of the shared state - * is changed.</li> - * <li>Any field name corresponding to a call to - * {@link #addFunction(String, JavaScriptFunction)} on the server will - * automatically be present as a function that triggers the registered function - * on the server.</li> - * <li>Any field name referred to using {@link #callFunction(String, Object...)} - * on the server will be called if a function has been assigned to the field.</li> - * </ul> - * <p> - * - * Values in the Shared State and in RPC calls are converted between Java and - * JavaScript using the following conventions: - * <ul> - * <li>Primitive Java numbers (byte, char, int, long, float, double) and their - * boxed types (Byte, Character, Integer, Long, Float, Double) are represented - * by JavaScript numbers.</li> - * <li>The primitive Java boolean and the boxed Boolean are represented by - * JavaScript booleans.</li> - * <li>Java Strings are represented by JavaScript strings.</li> - * <li>Java Dates are represented by JavaScript numbers containing the timestamp - * </li> - * <li>List, Set and all arrays in Java are represented by JavaScript arrays.</li> - * <li>Map<String, ?> in Java is represented by JavaScript object with - * fields corresponding to the map keys.</li> - * <li>Any other Java Map is represented by a JavaScript array containing two - * arrays, the first contains the keys and the second contains the values in the - * same order.</li> - * <li>A Java Bean is represented by a JavaScript object with fields - * corresponding to the bean's properties.</li> - * <li>A Java Connector is represented by a JavaScript string containing the - * connector's id.</li> - * <li>A pluggable serialization mechanism is provided for types not described - * here. Please refer to the documentation for specific types for serialization - * information.</li> - * </ul> - * - * @author Vaadin Ltd - * @since 7.0.0 - */ -public abstract class AbstractJavaScriptComponent extends AbstractComponent { - private JavaScriptCallbackHelper callbackHelper = new JavaScriptCallbackHelper( - this); - - @Override - protected <T extends ServerRpc> void registerRpc(T implementation, - Class<T> rpcInterfaceType) { - super.registerRpc(implementation, rpcInterfaceType); - callbackHelper.registerRpc(rpcInterfaceType); - } - - /** - * Register a {@link JavaScriptFunction} that can be called from the - * JavaScript using the provided name. A JavaScript function with the - * provided name will be added to the connector wrapper object (initially - * available as <code>this</code>). Calling that JavaScript function will - * cause the call method in the registered {@link JavaScriptFunction} to be - * invoked with the same arguments. - * - * @param functionName - * the name that should be used for client-side function - * @param function - * the {@link JavaScriptFunction} object that will be invoked - * when the JavaScript function is called - */ - protected void addFunction(String functionName, JavaScriptFunction function) { - callbackHelper.registerCallback(functionName, function); - } - - /** - * Invoke a named function that the connector JavaScript has added to the - * JavaScript connector wrapper object. The arguments can be any boxed - * primitive type, String, {@link JsonValue} or arrays of any other - * supported type. Complex types (e.g. List, Set, Map, Connector or any - * JavaBean type) must be explicitly serialized to a {@link JsonValue} - * before sending. This can be done either with - * {@link JsonCodec#encode(Object, JsonValue, java.lang.reflect.Type, com.vaadin.ui.ConnectorTracker)} - * or using the factory methods in {@link Json}. - * - * @param name - * the name of the function - * @param arguments - * function arguments - */ - protected void callFunction(String name, Object... arguments) { - callbackHelper.invokeCallback(name, arguments); - } - - @Override - protected JavaScriptComponentState getState() { - return (JavaScriptComponentState) super.getState(); - } -} |