fi.jasoft.dragdroplayouts.demo.views.DragdropIframeDragging.java Source code

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Here is the source code for fi.jasoft.dragdroplayouts.demo.views.DragdropIframeDragging.java

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/*
 * Copyright 2015 John Ahlroos
 * 
 * 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 fi.jasoft.dragdroplayouts.demo.views;

import com.vaadin.navigator.Navigator;
import com.vaadin.server.ExternalResource;
import com.vaadin.ui.BrowserFrame;
import com.vaadin.ui.Component;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Label;

import fi.jasoft.dragdroplayouts.DDAbsoluteLayout;
import fi.jasoft.dragdroplayouts.client.ui.LayoutDragMode;
import fi.jasoft.dragdroplayouts.demo.DemoView;
import fi.jasoft.dragdroplayouts.drophandlers.DefaultAbsoluteLayoutDropHandler;

public class DragdropIframeDragging extends DemoView {

    public static final String NAME = "dd-iframes";

    public DragdropIframeDragging(Navigator navigator) {
        super(navigator);
    }

    private DDAbsoluteLayout createShimmedLayout() {
        DDAbsoluteLayout layout = new DDAbsoluteLayout();
        layout.setStyleName("shimmed-layout");
        layout.setSizeFull();
        layout.setDragMode(LayoutDragMode.CLONE);
        layout.setDropHandler(new DefaultAbsoluteLayoutDropHandler());

        /*
         * Enable shimming of iframe based components.
         * 
         * Iframe components will be draggable, but the page behind the iframe cannot be accessed
         */
        layout.setShim(true);

        layout.addComponent(new Label("Adding iframe components to an layout where shimming is"
                + " turned on makes dragging possible but accessing the iframed component not possible. "
                + "For instance the tweet button below can be dragged around but not clicked"));

        addComponentsToLayout(layout, null);

        return layout;
    }

    private DDAbsoluteLayout createUnShimmedLayout() {
        DDAbsoluteLayout layout = new DDAbsoluteLayout();
        layout.setStyleName("unshimmed-layout");
        layout.setSizeFull();
        layout.setDragMode(LayoutDragMode.CLONE);
        layout.setDropHandler(new DefaultAbsoluteLayoutDropHandler());

        /*
         * Disable shimming of iframe based components.
         * 
         * Iframe components cannot be dragged but can be accessed through the layout
         */
        layout.setShim(false);

        layout.addComponent(new Label("Adding iframe components to an layout where shimming is"
                + " turned off makes dragging those components impossible. "
                + "For instance the tweet button below can be normally used but not dragged"));

        addComponentsToLayout(layout, null);

        return layout;
    }

    private void addComponentsToLayout(DDAbsoluteLayout layout, String caption) {

        BrowserFrame frame = new BrowserFrame(caption,
                new ExternalResource("https://platform.twitter.com/widgets/tweet_button.html"));
        frame.setWidth("300px");
        frame.setHeight("300px");

        layout.addComponent(frame, "top:100px;left:50px");

    }

    @Override
    public Component getLayout() {
        HorizontalLayout root = new HorizontalLayout();
        root.setSizeFull();
        root.setSpacing(true);
        setCompositionRoot(root);

        // Add a layout where shimming is turned on
        root.addComponent(createShimmedLayout());

        // Add a layout where shimming is turned off
        root.addComponent(createUnShimmedLayout());

        return root;
    }

    @Override
    public String getCaption() {
        return "Dragging iframes";
    }

    @Override
    public String getName() {
        return NAME;
    }

}