Can I call doClick on a button after making it invisible.
like:
StopBtn.setVisible( false );
StopBtn.doClick();
will doClick() still do its work?
The easiest way to discover this was of course to just test it (e.g. in a unit test if you fear those guys at Oracle would ever change the behavior)
#Test
public void clickOnInvisibleButton(){
JButton button = new JButton( "test button" );
button.setVisible( false );
final boolean[] buttonClicked = new boolean[]{false};
button.addActionListener( new ActionListener(){
#Override
public void actionPerformed( ActionEvent e ){
buttonClicked[0] = true;
}
});
button.doClick();
assertTrue( "Button has not been clicked", buttonClicked[0] );
}
Otherwise, you could have taken a look at the source code of that method
public void doClick(int pressTime) {
Dimension size = getSize();
model.setArmed(true);
model.setPressed(true);
paintImmediately(new Rectangle(0,0, size.width, size.height));
try {
Thread.currentThread().sleep(pressTime);
} catch(InterruptedException ie) {
}
model.setPressed(false);
model.setArmed(false);
}
There you do not find a check on the visibility. Looking a bit further (e.g. in the setPressed method of the model), you will find the check for the enabled state, but clearly see that there is no check for the visibility present. You also see that an ActionEvent is fired, which will trigger the actionPerformed method of the button
public void setPressed(boolean b) {
if((isPressed() == b) || !isEnabled()) {
return;
}
if (b) {
stateMask |= PRESSED;
} else {
stateMask &= ~PRESSED;
}
if(!isPressed() && isArmed()) {
int modifiers = 0;
AWTEvent currentEvent = EventQueue.getCurrentEvent();
if (currentEvent instanceof InputEvent) {
modifiers = ((InputEvent)currentEvent).getModifiers();
} else if (currentEvent instanceof ActionEvent) {
modifiers = ((ActionEvent)currentEvent).getModifiers();
}
fireActionPerformed(
new ActionEvent(this, ActionEvent.ACTION_PERFORMED,
getActionCommand(),
EventQueue.getMostRecentEventTime(),
modifiers));
}
fireStateChanged();
}
I've just tried it for you. It still works, which means it still triggers the actionPerformed() method.
However, it doesn't work if you disable it: button.setEnabled(false) which makes sense.
Related
I have a problem with org.primefaces.component.diagram, i want to add an action when click on any overlay or connector, i make this using jquery, but the problem is that there is no identifier for the connection, after search i was able to get the ids of the 2 end points of the connection but if there is many connection between the same points then i cannot distinguish between them, i tried to override the diagram and add "connectionId" attribute on the connection but i got an exception in the front end :
Uncaught ReferenceError: connectionId590236 is not defined at eval (eval at (jquery.js.xhtml?ln=primefaces&v=5.2:14), :1:1488)
screenshot
The closet solution would be is to use setId on Element in the DefaultDiagramModel creation.
An example would be as the following:
Element elementA = new Element("A", "20em", "6em");
elementA.setId("element-a");
Element elementB = new Element("B", "10em", "18em");
elementB.setId("element-b");
Element elementC = new Element("C", "40em", "18em");
elementC.setId("element-c");
...
Since PrimeFaces doesn't provide the control you are searching for, and the original component comes from jsPlumb, you may rely on that to achieve what you are looking for.
First make sure that the <p:diagram> has a widgetVar value, es. diagramWV
An example would be the following:
$(document).ready(function () {
//timeout makes sure the component is initialized
setTimeout(function () {
for (var key in PF('diagramWV').canvas.getAllConnections()) {
if (PF('diagramWV').canvas.getAllConnections().hasOwnProperty(key)) {
//Elemenets Events
// on source just once
$(PF('diagramWV').canvas.getAllConnections()[key].source).off('click').on('click', function () {
console.log($(this).attr('id'))
});
// on target just once
$(PF('diagramWV').canvas.getAllConnections()[key].target).off('click').on('click', function () {
console.log($(this).attr('id'))
});
//Connection Event
PF('diagramWV').canvas.getAllConnections()[key].bind("click", function (conn) {
console.log("source " + conn.sourceId);
console.log("target " + conn.targetId);
});
}
}
}, 500);
});
Note: The canvas property of the widgetVar is the current instance of jsPlumbInstance
Here's an online demo, and a small working example on github.
finally i found an acceptable solution :
-> add an label overlay on the connection and set the identifier on it.
org.primefaces.model.diagram.Connection conn = new org.primefaces.model.diagram.Connection(
EndPointA, EndPointB);
LabelOverlay labelOverlay = new LabelOverlay(connection.getId(), "labelOverlayClass", 0.3);
conn.getOverlays().add(labelOverlay);
-> then add JS function to handle on dbclick action on the connection and get the id from its related overlay using the classes "._jsPlumb_overlay" and "._jsPlumb_hover"
<p:remoteCommand name="connectionClicked"
actionListener="#{yourBean.onConnectionDoubleClick}" />
<script type="text/javascript">
var connectionId;
$('._jsPlumb_connector').on('dblclick', function(e) {
$('._jsPlumb_overlay._jsPlumb_hover').each(function() {
connectionId = $(this).text();
});
connectionClicked([ { name : 'connectionId', value : connectionId } ]);
});
});
</script>
-> finally in the bean you extract the id and do whatever you want
public void onConnectionDoubleClick() {
Map<String, String> params = FacesContext.getCurrentInstance()
.getExternalContext().getRequestParameterMap();
String connectionId = params.get("connectionId");
if(StringUtils.isBlank(connectionId))
return;
.........
I was able to add a click event to Overlay by extending the primefaces Overlay class. If you make a change to the toJS() class (taking heavy inspiration from the Primefaces LabelOverLay) then you can write your own overlay with the jsplumb overlay constructor. Here's my implementation of a ClickableLabelOverlay.
public class ClickableLabelOverlay implements Overlay {
private String label;
private String styleClass;
private double location = 0.5;
private String onClick;
public ClickableLabelOverlay() {
}
public ClickableLabelOverlay(String label) {
this.label = label;
}
public ClickableLabelOverlay(String label, String styleClass, double location, String onClick) {
this(label);
this.styleClass = styleClass;
this.location = location;
this.onClick = onClick;
}
public String getLabel() {
return label;
}
public void setLabel(String label) {
this.label = label;
}
public String getStyleClass() {
return styleClass;
}
public void setStyleClass(String styleClass) {
this.styleClass = styleClass;
}
public double getLocation() {
return location;
}
public void setLocation(double location) {
this.location = location;
}
public String getOnClick() {
return onClick;
}
public void setOnClick(String onClick) {
this.onClick = onClick;
}
public String getType() {
return "Label";
}
public String toJS(StringBuilder sb) {
sb.append("['Label',{label:'").append(label).append("'");
if(styleClass != null) sb.append(",cssClass:'").append(styleClass).append("'");
if(location != 0.5) sb.append(",location:").append(location);
if(onClick != null) sb.append(",events:{click:function(labelOverlay, originalEvent){").append(onClick).append("}}");
sb.append("}]");
return sb.toString();
}
}
Put any javascript you want to execute inside of the onClick variable and it'll run when you click on the overlay. For convenience I added it to the set of default overlays for my diagram.
diagram.getDefaultConnectionOverlays().add(new ClickableLabelOverlay(...)
this is my code:
...
private List<Erfasst> alle;
public List<Erfasst> getAlle() {
if (alle == null) {
return alleEintraege.alle();
} else {
return alle;
}
}
....
The Function is in a #ApplicationScope Class.
My ajax function which listens to the edit row looks like this:
public void bearbeiten(RowEditEvent event) {
neuerEintrag.aendern((Erfasst) event.getObject());
FacesMessage msg = new FacesMessage("Objekt geändert");
FacesContext.getCurrentInstance().addMessage(null, msg);
}
My problem is, that the event Object always gets the old value and not the new value. So what's wrong?
I have three MvxSpinners in my android view.
These spinners are binded to three different lists.
and Mode of data binding is TwoWay for these spinners.i.e. when this view is
displayed,all of these three spinners are get displayed with the predefined values.
When user change the value in first spinner,then second spinner will be clear and
get loaded with new values based on the selected value in first spinner.
How can I achieve this?
There's many ways to accomplish this, where the code placement is really up to you. Overall the idea would be to have a "SelectedItem" object that you can pass into your method and "Load" the next List.
Please keep in mind that this code is more traditional MVVM, but can easily be converted to MVVMCross equivalent. I believe all these types should be supported by MVVMCross.
private MyFirstObject _selectedFirstObject;
public MyFirstObject SelectedFirstObject
{
get { return _selectedFirstObject; }
set
{
_selectedFirstObject = value;
RaisePropertyChanged("SelectedFirstObject");
if(value != null)
LoadMySecondObjects(value);
}
}
private ObservableCollection<MyFirstObject> _myFirstObjects;
public ObservableCollection<MyFirstObject> MyFirstObjects
{
get { return _myFirstObjects; }
set
{
_myFirstObjects = value;
RaisePropertyChanged("MyFirstObjects");
}
}
private ObservableCollection<MySecondObject> _mySecondObjects;
public ObservableCollection<MySecondObject> MySecondObjects
{
get { return _mySecondObjects; }
set
{
_mySecondObjects = value;
RaisePropertyChanged("MySecondObjects");
}
}
public void LoadMySecondObjects(MyFirstObject current)
{
//Wherever you're pulling data from
MySecondObjects = MyDataService.GetAll(current);
}
protected void RaisePropertyChanged(string propertyName)
{
PropertyChangedEventHandler handler = PropertyChanged;
if (handler != null)
{
handler(this, new PropertyChangedEventArgs(propertyName));
}
}
public event PropertyChangedEventHandler PropertyChanged;
I had the same problem but only if you add null value (as a default value) to your ItemsSource and try to reset SelectedItem to null. SelectedItem is changed in ViewModel but not in the spinner. In that case there's number of solutions but I used message to inform View to set selected item
public class SpinnerSelectionChanged : MvxMessage
{
public SpinnerSelectionChanged(object sender, string spinnerName, int position): base(sender)
{
SpinnerName = spinnerName;
Position = position;
}
public string SpinnerName { get; set; }
public int Position { get; set; }
}
in View
private void OnSpinnerSelectionChanged(SpinnerSelectionChanged obj)
{
switch (obj.SpinnerName)
{
case "City":
_spinnerCity.SetSelection(obj.Position);
break;
case "Office":
_spinnerOffice.SetSelection(obj.Position);
break;
}
}
Is it possible to use a simple action method - just like with Caliburn.Micro - instead of a command with MvvmCross bindings?
Example:
public void Action()
{
Tip = 11;
}
<Button
android:text="Button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="#+id/button1"
local:MvxBind="Click Action" />
It doesn't work out of the box, I tested that.
While I found a lot of samples about adding new target bindings, I didn't find a single one about adding a new source binding.
UPDATE:
This works now out of the box with the Rio binding. To use it, add the MvvmCross MethodBinding NuGet package to the Android project.
Up until now, much of the emphasis for MvvmCross has been on allowing multi-platform target binding with the source remaining mainly 'vanilla' INotifyPropertyChanged.
There have been some deviation in terms of ViewModel structure - e.g.:
the MvxCommandCollection - http://slodge.blogspot.co.uk/2013/03/fixing-mvvm-commands-making-hot-tuna.html
some users using Fody - http://twincoders.com/blog/codigo-limpio-con-fody/
Recently, several new feature requests have also been logged in this area:
AutoCommands - I think this is what you are asking about here - https://github.com/slodge/MvvmCross/issues/301
Rio binding sources - https://github.com/slodge/MvvmCross/issues/299
Tibet binding - https://github.com/slodge/MvvmCross/issues/298
Because of these, I do expect more functionality to be exposed in this area in the future...
With that said, if you wanted to get this working today, then MvvmCross Binding is overrideable so you could fairly easily do it:
1. Implement an ICommand that invokes a MethodInfo using reflection (for completeness this should probably also use a parameter if available) - some kind of InvokeMethodCommand (code for this left to the reader!)
.
2. Implement an MyMethodSourceBinding class which wraps the InvokeMethodCommand - something like:
public class MyMethodSourceBinding : MvxSourceBinding
{
private readonly MethodInfo _methodInfo;
protected MyMethodSourceBinding(object source, MethodInfo methodInfo)
: base(source)
{
_methodInfo = _methodInfo;
}
public override void SetValue(object value)
{
// do nothing - not allowed
}
public override Type SourceType
{
get { return typeof(ICommand); }
}
public override bool TryGetValue(out object value)
{
value = new InvokeMethodCommand(source, _methodInfo);
return true;
}
}
3. Override MvvmCross's registered IMvxSourceBindingFactory with your own implementation that can detect when a method is present - sadly most of this is cut and paste coding today - it would be something like
public class MySourceBindingFactory
: IMvxSourceBindingFactory
{
private IMvxSourcePropertyPathParser _propertyPathParser;
private IMvxSourcePropertyPathParser SourcePropertyPathParser
{
get
{
if (_propertyPathParser == null)
{
_propertyPathParser = Mvx.Resolve<IMvxSourcePropertyPathParser>();
}
return _propertyPathParser;
}
}
public IMvxSourceBinding CreateBinding(object source, string combinedPropertyName)
{
var tokens = SourcePropertyPathParser.Parse(combinedPropertyName);
return CreateBinding(source, tokens);
}
public IMvxSourceBinding CreateBinding(object source, IList<MvxPropertyToken> tokens)
{
if (tokens == null || tokens.Count == 0)
{
throw new MvxException("empty token list passed to CreateBinding");
}
var currentToken = tokens[0];
if (tokens.Count == 1)
{
return CreateLeafBinding(source, currentToken);
}
else
{
var remainingTokens = tokens.Skip(1).ToList();
return CreateChainedBinding(source, currentToken, remainingTokens);
}
}
private static MvxChainedSourceBinding CreateChainedBinding(object source, MvxPropertyToken propertyToken,
List<MvxPropertyToken> remainingTokens)
{
if (propertyToken is MvxIndexerPropertyToken)
{
return new MvxIndexerChainedSourceBinding(source, (MvxIndexerPropertyToken) propertyToken,
remainingTokens);
}
else if (propertyToken is MvxPropertyNamePropertyToken)
{
return new MvxSimpleChainedSourceBinding(source, (MvxPropertyNamePropertyToken) propertyToken,
remainingTokens);
}
throw new MvxException("Unexpected property chaining - seen token type {0}",
propertyToken.GetType().FullName);
}
private static IMvxSourceBinding CreateLeafBinding(object source, MvxPropertyToken propertyToken)
{
if (propertyToken is MvxIndexerPropertyToken)
{
return new MvxIndexerLeafPropertyInfoSourceBinding(source, (MvxIndexerPropertyToken) propertyToken);
}
else if (propertyToken is MvxPropertyNamePropertyToken)
{
//**************************
// Special code is here
var propertyToken = (MvxPropertyNamePropertyToken) propertyToken;
if (source != null)
{
var method = source.GetType().GetMethod(propertyToken.PropertyName, BindingFlags.FlattenHierarchy | BindingFlags.Public | BindingFlags.Instance);
if (method != null)
{
return new MyMethodSourceBinding(source, method);
}
}
return new MvxSimpleLeafPropertyInfoSourceBinding(source,
(MvxPropertyNamePropertyToken) propertyToken);
// Special code ends here
//**************************
}
else if (propertyToken is MvxEmptyPropertyToken)
{
return new MvxDirectToSourceBinding(source);
}
throw new MvxException("Unexpected property source - seen token type {0}", propertyToken.GetType().FullName);
}
}
4. Supply this source binding factory in your own custom binding builder - e.g.:
public class MyAndroidBindingBuilder
: MvxAndroidBindingBuilder
{
protected override IMvxSourceBindingFactory CreateSourceBindingFactory()
{
return new MvxSourceBindingFactory();
}
}
5. Supply this binding builder during your setup
public class Setup : MvxAndroidSetup
{
// ....
protected override MvxAndroidBindingBuilder CreateBindingBuilder()
{
return new MyAndroidBindingBuilder();
}
}
Note: This approach is only for advanced users right now... As suggested in the first part of this question, I do expect the code in this area to change quite a lot so you might also encounter some issues maintaining a fork in this area. (Indeed the code in this area has already changed quite significantly on the Tibet Binding branch within the GitHub repo!)
In a GraphicalEditor I created a tab folder:
private final String[] tabNames = { "Text", "Image" };
private ResourcesTextComposite comText;
private ResourcesImageComposite comImage;
...
public void createPartControl(Composite parent) {
...
tabFolder = new TabFolder(parent, SWT.BORDER);
for (int loopIndex = 0; loopIndex < tabNames.length; loopIndex++) {
TabItem tabItem = new TabItem(tabFolder, SWT.NULL);
tabItem.setText(tabNames[loopIndex]);
if (loopIndex == 0) {
comText = new ResourcesTextComposite(tabFolder, SWT.NONE,
resources);
tabItem.setControl(comText);
} else if (loopIndex == 1) {
comImage = new ResourcesImageComposite(tabFolder, SWT.NONE,
resources);
tabItem.setControl(comImage);
}
}
...
}
it has 2 tab items and each item has a composite in it, and each composite has a TableViewer respectively.
I tried this to make each TableViewer the selection provider when the user selects the corresponding tab item (the same function createPartControl of the editor):
public void createPartControl(Composite parent) {
...
tabFolder.addSelectionListener(new SelectionListener() {
public void widgetSelected(SelectionEvent e) {
int tabIdx = tabFolder.getSelectionIndex();
getSite().setSelectionProvider(null);
if (tabIdx == 0) {
getSite().setSelectionProvider(comText.getViewer());
} else if (tabIdx == 1) {
getSite().setSelectionProvider(comImage.getViewer());
}
System.out.println("widgetSelected" + getSite() + ": "
+ getSite().getSelectionProvider());
}
public void widgetDefaultSelected(SelectionEvent e) {
widgetSelected(e);
}
});
...
}
I hope when I select a row in a TableViewer, the Properties view will show the selected model's properties, I've complete those IPropertySource things and they works well in other editors that has no tab folders, so I think the problem should be in the Selection Provider area.
Any ideas or has anyone encountered the same problem?
If you have multiple selection providers in a view or editor, then you need to use a mediator like org.eclipse.jdt.internal.ui.viewsupport.SelectionProviderMediator. Note that it is unfortunately internal, so you need to copy it to your own project