pleku / resizablecsslayout

ResizableCssLayout add-on for Vaadin

ResizableCssLayout Add-on for Vaadin 7

ResizableCssLayout is an UI component add-on for Vaadin 7.

Online demo

Try the add-on demo at http://pekka.app.fi/resizablecsslayout-demo/

Download release

Official releases of this add-on are available at Vaadin Directory. For Maven instructions, download and reviews, go to http://vaadin.com/addon/resizablecsslayout

Building and running demo

git clone https://github.com/pleku/resizablecsslayout.git mvn clean install cd demo mvn jetty:run

To see the demo, navigate to http://localhost:8080/

Development with Eclipse IDE

For further development of this add-on, the following tool-chain is recommended:

• Eclipse IDE
• m2e wtp plug-in (install it from Eclipse Marketplace)
• Vaadin Eclipse plug-in (install it from Eclipse Marketplace)
• JRebel Eclipse plug-in (install it from Eclipse Marketplace)
• Chrome browser

Importing project

Choose File > Import... > Existing Maven Projects

Note that Eclipse may give "Plugin execution not covered by lifecycle configuration" errors for pom.xml. Use "Permanently mark goal resources in pom.xml as ignored in Eclipse build" quick-fix to mark these errors as permanently ignored in your project. Do not worry, the project still works fine.

Debugging server-side

If you have not already compiled the widgetset, do it now by running vaadin:install Maven target for resizablecsslayout-root project.

If you have a JRebel license, it makes on the fly code changes faster. Just add JRebel nature to your resizablecsslayout-demo project by clicking project with right mouse button and choosing JRebel > Add JRebel Nature

To debug project and make code modifications on the fly in the server-side, right-click the resizablecsslayout-demo project and choose Debug As > Debug on Server. Navigate to http://localhost:8080/resizablecsslayout-demo/ to see the application.

Debugging client-side

The most common way of debugging and making changes to the client-side code is dev-mode. To create debug configuration for it, open resizablecsslayout-demo project properties and click "Create Development Mode Launch" button on the Vaadin tab. Right-click newly added "GWT development mode for resizablecsslayout-demo.launch" and choose Debug As > Debug Configurations... Open up Classpath tab for the development mode configuration and choose User Entries. Click Advanced... and select Add Folders. Choose Java and Resources under resizablecsslayout/src/main and click ok. Now you are ready to start debugging the client-side code by clicking debug. Click Launch Default Browser button in the GWT Development Mode in the launched application. Now you can modify and breakpoints to client-side classes and see changes by reloading the web page.

Another way of debugging client-side is superdev mode. To enable it, uncomment devModeRedirectEnabled line from the end of DemoWidgetSet.gwt.xml located under resizablecsslayout-demo resources folder and compile the widgetset once by running vaadin:compile Maven target for resizablecsslayout-demo. Refresh resizablecsslayout-demo project resources by right clicking the project and choosing Refresh. Click "Create SuperDevMode Launch" button on the Vaadin tab of the resizablecsslayout-demo project properties panel to create superder mode code server launch configuration and modify the class path as instructed above. After starting the code server by running SuperDevMode launch as Java application, you can navigate to http://localhost:8080/resizablecsslayout-demo/?superdevmode. Now all code changes you do to your client side will get compiled as soon as you reload the web page. You can also access Java-sources and set breakpoints inside Chrome if you enable source maps from inspector settings.

Release notes

Version 2.0.0

• Support for Vaadin 8

Version 1.1.0

• Support keeping aspect ratio when resizing #1
• Fixed 1px offset error when resizing #3
• Pressing escape should cancel the resize #4
• Update the right/bottom coordinates when inside a AbsoluteLayout #5
• Fixed resize handles being partly hidden behind a full-size Grid component #8

Version 1.0.1

• Fixed invalid javadocs

Version 1.0.0

• toggle resize mode on/off
• listener and events for resize start and resize end
• automatically accept resize on client side with autoAcceptResize
• allows canceling resize on server side with ResizeEndEvent & cancelResize()
• set resize location size in pixels

Roadmap

This component is developed as a hobby with no public roadmap or any guarantees of upcoming releases. That said, the following features are planned for upcoming releases:

• enabled/disable ResizeLocations (eg. only corners)

Issue tracking

The issues for this add-on are tracked on its github.com page. All bug reports and feature requests are appreciated.

Contributions

Contributions are welcome, but there are no guarantees that they are accepted as such. Process for contributing is the following:

• Fork this project
• Create an issue to this project about the contribution (bug or feature) if there is no such issue about it already. Try to keep the scope minimal.
• Develop and test the fix or functionality carefully. Only include minimum amount of code needed to fix the issue.
• Refer to the fixed issue in commit
• Send a pull request for the original project
• Comment on the original issue that you have implemented a fix for it

License & Author

Add-on is distributed under Apache License 2.0. For license terms, see LICENSE.txt.

ResizableCssLayout is written by Pekka Hyvönen [email protected]

Developer Guide

Getting started

For example, see src/test/java/org/vaadin/template/demo/DemoUI.java

resizablecsslayout's Issues

Can't resize Grid

I can't make this add-on work...

This is my code snippet:

public class FlotaConductores extends CustomComponent implements ClickListener, SucceededListener, Receiver, ProgressListener, StartedListener, FailedListener {

...

private VerticalLayout bodyContentConductores;

private HorizontalLayout layoutBotonesConductores;
private Button botonCargarFicheroConductores;
private Button botonBorrarConductor;
private Button botonAnadirConductor;

private ResizableCssLayout gridWrapper;
private Grid gridConductores;

...

public FlotaConductores(UI pUi){
    this.ui = pUi;

    this.navigator = ui.getNavigator();

    // Encontramos el directorio base de la aplicación
    basepath = VaadinService.getCurrent().getBaseDirectory().getAbsolutePath();

}

public VerticalLayout buildLayoutConductores(){
    bodyContentConductores = new VerticalLayout();
    bodyContentConductores.setMargin(true);
    bodyContentConductores.setSpacing(true);

    Grid grid = buildGridConductores();

    gridWrapper = new ResizableCssLayout(grid);
    gridWrapper.setResizable(true);
    gridWrapper.setHeight("100%");
    gridWrapper.setWidth("100%");
    gridWrapper.setCaption("Resize from grid's edges");

    bodyContentConductores.addComponent(gridWrapper);
    bodyContentConductores.addComponent(buildLayoutBotonesConductores());
    bodyContentConductores.setWidth("100%");

    return bodyContentConductores;
}

private Grid buildGridConductores() {

    PtDaoService ptDao = new PtDaoService();
    ptDao.obtenerConductores();

    containerConductoresSistema = new BeanItemContainer<Conductor>(Conductor.class, Flota.getInstance().getConductoresList());

    gridConductores = new Grid(containerConductoresSistema);
    gridConductores.setSizeFull();
    gridConductores.setSelectionMode(SelectionMode.MULTI);
    gridConductores.setImmediate(true);
    gridConductores.setWidth(100, Unit.PERCENTAGE);
    gridConductores.setHeight(100, Unit.PERCENTAGE);
    gridConductores.setColumnOrder("nombre", "email", "telefono", "domicilio");
    gridConductores.removeColumn("domicilioCoord");

    // Filtro
    final GridCellFilter filter = new GridCellFilter(gridConductores);
    filter.setTextFilter("nombre", false, false);
    filter.setTextFilter("email", false, false);
    filter.setTextFilter("telefono", false, false);
    filter.setTextFilter("domicilio", false, false);

    return gridConductores;
}

...

}

What am I doing wrong?

Support keeping aspect ratio

Should be possible to say to ResizableCssLayout to keep the current aspect ratio of the component on resize - the user's DND always changes both width & height.

Example project does not compile with java 10

Example project does not compile with java 10

Cursor override on Safari 8.0.6 is broken

The cursor override when resizing is not working on Safari, instead it shows a text select cursor. Works fine on FF and Chrome on Mac.

Fix 1px offset error when resizing (v1.0.1)

When starting a resize with onMouseDown, the resize handle should always be in the same location, which is the current size. Holding the mouse down and then releasing it without moving should not resize the component.

When keeping aspect ratio, AbsoluteLayout coordinates not updated properly (v1.1)

In short, the component should stay in the same location always when resized, instead of bouncing around. Currently when keeping aspect ratio and resizing from the sides, the component "bounces around" since it doesn't consider that it is being resized in both dimensions because of keeping the ratio.

When keeping aspect ratio, it is possible to resize the component outside boundaries.

The component should regard the parent boundaries even when keeping the aspect ratio.

Vaadin 8 Incompatible.

Hi,

While the code itself is compatible with Vaadin 8 there are some issues with the compiled code in release 1.1.0 when used with Vaadin 8.

If you extend ResizableCssLayoutState then you get a StackOverFlowError whenever you call getState(boolean) ... which is called indirectly in the constructor of ResizableCSSLayout.

Recompiling the addon against Vaadin 8 resolves this issue and allows you to extend ResizableCssLayout

This may be related to bridge methods created in the compiled class file for ResizableCssLayout. In Vaadin 7 CssLayout did not define a getState(boolean) method, so when ResizableCssLayout is compiled against the Vaadin 7 code base the compiled class file adds bridge methods because ResizableCssLayout overrides the return type of getState(boolean) casting the returned state to a ResizableCssLayoutState.

Resize handles are hidden behind the grid component when grid is 100% size

The resize handles are behind the grid component in the demo, need bigger z-index.

Show cloned content when resizing

Could have an option to show cloned content inside the dragged element.
Or another option is to resize the actual content live?

Use transform for resizing layout

Might be visually nicer if using transform for the resizing.

Update the right/bottom coordinates when dragging from right/bottom side or bottom-right/-left corner.

Update the corresponding coordinates for AbsoluteLayout when the resize layout is positioned with bottom and or right coordinates (top & left already supported).

Enable touch support

Enable touch support to make it possible to do resize with touch screen. At least android (chrome) and iOS (safari) should work, maybe even windows phone (IE).

Pressing Esc key while dragging should cancel the drag

When user is drag resizing, pressing the esc-key should cancel the drag.