I have implemented my own editor and added a code completion functionality to it. My content assistant is registered in source viewer configuration like this:
public IContentAssistant getContentAssistant(ISourceViewer sourceViewer) {
if (assistant == null) {
assistant = new ContentAssistant();
assistant.setDocumentPartitioning(getConfiguredDocumentPartitioning(sourceViewer));
assistant.setContentAssistProcessor(getMyAssistProcessor(),
MyPartitionScanner.DESIRED_PARTITION_FOR_MY_ASSISTANCE);
assistant.enableAutoActivation(true);
assistant.setAutoActivationDelay(500);
assistant.setProposalPopupOrientation(IContentAssistant.PROPOSAL_OVERLAY);
assistant.setContextInformationPopupOrientation(IContentAssistant.CONTEXT_INFO_ABOVE);
}
return assistant;
}
When I press Ctrl + SPACE inside the desired partition, the completion popup appears and works as expected.
And here's my question.. How do I implement/register a documentation popup that appears next to completion popup? (For example in java editor)
Well,
I'll answear the question myself ;-)
You have to add this line
assistant.setInformationControlCreator(getInformationControlCreator(sourceViewer));
to the configuration above. Then when creating CompletionProposals, the eighth (last) parameter called additionalProposalInfo of the constructor is the text, which will be shown in the documentation popup.
new CompletionProposal(replacementString,
replacementOffset,
replacementLength,
cursorPosition,
image,
displayString,
contextInformation,
additionalProposalInfo);
More information about can be found here.
Easy, isn't it.. if you know how to do it ;)
For the styled information box (just like in JDT).
The DefaultInformationControl instance need to received a HTMLTextPresenter.
import org.eclipse.jface.internal.text.html.HTMLTextPresenter;
public class MyConfiguration extends SourceViewerConfiguration {
[...]
public IContentAssistant getContentAssistant(ISourceViewer sourceViewer) {
if (assistant == null) {
[...]
assistant.setInformationControlCreator(getInformationControlCreator(sourceViewer));
}
return assistant;
}
#Override
public IInformationControlCreator getInformationControlCreator(ISourceViewer sourceViewer) {
return new IInformationControlCreator() {
public IInformationControl createInformationControl(Shell parent) {
return new DefaultInformationControl(parent,new HTMLTextPresenter(false));
}
};
}
}
Proposals can then use basic HTML tags in the string from method getAdditionalProposalInfo().
public class MyProposal implements ICompletionProposal {
[...]
#Override
public String getAdditionalProposalInfo() {
return "<b>Hello</b> <i>World</i>!";
}
}
Related
I currently have en Eclipse plugin that provides a multi-page editor, one page for a visual editor and one page for a source editor, similar to other editors, i.e:
This is the important part of my code:
public class DockerfileEditor extends FormEditor implements IResourceChangeListener {
....
#Override
protected void addPages() {
try {
SourceEditor sourceEditor = new SourceEditor(); // Extends from EditorPart
addPage(new DesignForm(this, "Design")); //$NON-NLS-1$
addPage(sourceEditor, sourceEditor.getEditorInput());
} catch (PartInitException e) {
e.printStackTrace();
}
}
}
In the addPages() method I'm adding my 2 pages, the first of them extends from FormPage so setting the title is really easy, but the second page extends from EditorPart (this will be my source editor), how can I set the title of this page?
addPage returns you the index of the page that was added so you can use:
int pageIndex = addPage(sourceEditor, sourceEditor.getEditorInput());
setPageText(pageIndex, "Source");
This code is what I want to do. While typing in an editable ComboBox I want to release ENTER and handle that enter event. However, I cannot get the application to respond, a message was not printed. I wrote basically the same code for a text box and it worked fine, a message was printed. I also wrote the handler for any KeyReleased event for a ComboBox and that worked fine also, a message was printed. The trouble is the enter key. Why does this code not do what I want in an editable ComboBox?
#FXML
ComboBox comboBox;
public class ScreenController implements Initializable {
#Override
public void initialize(...) {
...
comboBox.setOnKeyReleased(new EventHandler<KeyEvent>() {
#Override
public void handle(KeyEvent ke) {
if (ke.getCode == KeyCode.ENTER) {
System.out.println("ENTER was released");
}
}
});
}
}
I was suffering from the same bug/feature. Luckily I found this posting
The solution is not to register your handler via comboBox.setOnKeyReleased(). instead, use EventFilter:
comboBox.addEventFilter(KeyEvent.KEY_RELEASED, new EventHandler<KeyEvent>() {
#Override
public void handle(KeyEvent ke) {
if (ke.getCode == KeyCode.ENTER) {
System.out.println("ENTER was released");
}
}
});
This actually works as expected.
It's look to be a JavaFX bug. setOnKeyPressed doesn't work to. look at this
javafx jira
I want to call to context menu in my application.
The issue that I don't have any items in the tree.
I active my view and then I want to open context menu.
SWTBotView view = bot.viewByTitle("Project Explorer");
view.bot.tree().contextMenu("New").click();
then I got error message
Could you please advise me how I can open contextMeny without any item in the tree ?
As there is no direct way to do this. I assume you have a shortcut for opening your context menu.
bot.activeShell().pressShortcut(<your shortcut>);
bot.waitUntil(new ContextMenuAppears(tree,
"New"));
tree.contextMenu("New").click();
Where ContextMenuAppears is an ICondition which waits for the desired context menu to appear.
public class ContextMenuAppears implements ICondition {
private SWTBotTree swtBotTree;
private String mMenuText;
public TekstContextMenuAppears(SWTBotTree pSwtBotTree, String menuText) {
swtBotTree = pSwtBotTree;
mMenuText = menuText;
}
#Override
public boolean test() throws Exception {
try {
return swtBotTree.contextMenu(mMenuText).isVisible();
} catch (WidgetNotFoundException e) {
return false;
}
}
#Override
public void init(SWTBot bot) {
// TODO Auto-generated method stub
}
#Override
public String getFailureMessage() {
// TODO Auto-generated method stub
return null;
}
}
depending on what you're trying to achieve, you could try going via the file menu instead of the context menu. "new" should work that way.
I use junit to assert the existing of wicket components:
wicketTester.assertComponent("dev1WicketId:dev2WicketId:formWicketId", Form.class);
This works for some forms. For complex structure, it is defficult to find out the path of the form by searching all html files. Is there any method how to find out the path easy?
If you have the component you can call #getPageRelativePath(). E.g.
// Supposing c is a component that has been added to the page.
// Returns the full path to the component relative to the page, e.g., "path:to:label"
String pathToComponent = c.getPageRelativePath();
You can get the children of a markup container by using the visitChildren() method. The following example shows how to get all the Forms from a page.
List<Form> list = new ArrayList<Form<?>>();
Page page = wicketTester.getLastRenderedPage();
for (Form form : page.visitChildren(Form.class)) {
list.add(form);
}
An easy way to get those is to call getDebugSettings().setOutputComponentPath(true); when initializing your application. This will make Wicket to output these paths to the generated HTML as an attribute on every component-bound tag.
It's recommended to only enable this on debug mode, though:
public class WicketApplication extends WebApplication {
#Override
public void init() {
super.init();
if (getConfigurationType() == RuntimeConfigurationType.DEVELOPMENT) {
getDebugSettings().setOutputComponentPath(true);
}
}
}
Extending the RJo's answer.
It seems that the method page.visitChildren(<Class>) is deprecated (Wicket 6), so with an IVisitor it can be :
protected String findPathComponentOnLastRenderedPage(final String idComponent) {
final Page page = wicketTester.getLastRenderedPage();
return page.visitChildren(Component.class, new IVisitor<Component, String>() {
#Override
public void component(final Component component, final IVisit<String> visit) {
if (component.getId().equals(idComponent)) {
visit.stop(component.getPageRelativePath());
}
}
});
}
I've been looking through GXT3's Tree API for some way to execute an action when I click or double click on a node in a tree, and I can't seem to find anything that would work.
I know TreeGrid has a CellClickHandler and CellDoubleClick handler, but there doesn't seem to be anything similar for Tree. There's the generic addHandler method inherited from Widget but this seems like it would apply to the whole tree, not a specific node.
Is there something I'm overlooking, or a different / better way to do this?
use the TreePanel's selection model:
treePanel.getSelectionModel().addSelectionChangedListener(
new SelectionChangedListener<BaseTreeModel>() {
#Override
public void selectionChanged(SelectionChangedEvent<BaseTreeModel> se) {
BaseTreeModel selectedItem = se.getSelectedItem();
// implement functionality
}
}
);
see the TreePanel API for a reference.
Use this for Single Selection
tree.getSelectionModel().setSelectionMode(SelectionMode.SINGLE);
tree.getSelectionModel().addSelectionHandler(new SelectionHandler<MenuView.MenuDto>() {
public void onSelection(SelectionEvent<MenuDto> event) {
MenuDto mnu = event.getSelectedItem();
Info.display("Tree Handler", mnu.getDescripcion());
}
});
For Multiple Selections
tree.getSelectionModel().addSelectionChangedHandler(new SelectionChangedHandler<MenuView.MenuDto>() {
public void onSelectionChanged(SelectionChangedEvent<MenuDto> event) {
List<MenuDto> mnus = event.getSelection();
Info.display("Tree Handler", mnus.get(0).getDescripcion());
}
});
Another option is to override Tree's onDoubleClick (or onClick) method:
Tree tree = new Tree<MyModel, String>(store, valueProvider){
#Override
protected void onDoubleClick(Event event) {
TreeNode<MyModel> node = findNode(event.getEventTarget().<Element> cast());
Info.display("Double Click", "You double clicked this node!");
super.onDoubleClick(event);
}
};
Figured it out.This can be achieved by using the Cell Action Tree, an implementation of which can be found here: http://www.sencha.com/examples/#ExamplePlace:cellactiontree