I am trying to update the view content when I switch or open a new file in the Eclipse project explorer. I tried using "IResourceChangeListener" but it is not triggered (only on changed on the file itself). I also looked looked at https://www.wideskills.com/eclipse-plugin-tutorial (specific on the view part), and Eclipse forums, without success. I thought it would be easy thing... Any Ideas ? small code example will be great !
After hours of searching (and based on #greg-449 comment) I was able to generate a small example that get notified when a new file is opened and is currently visible in the editor:
in the derived ViewPart class:
#Override
public void createPartControl(Composite parent) {
.
.
.
workbench.getPartService().addPartListenr(new IPartListener2() {
public void partOpened(IWorkbenchPartReference partRef) {
String part = partRef.toString();
showMessage("partOpened is " + part);
}
public void partVisible(IWorkbenchPartReference partRef) {
String part = partRef.toString();
showMessage("partVisible is " + part);
}
});
}
Related
what I want to do:
In my RCP an E3/E4 hybrid I have a project and library based on sirius tree. The User can drag an drop item from the library tree to the project tree. This works fine and was no great problem to build in. So now I want to make the UI more usable. It should looks like this layout:
what works:
After application startup I open my library presentation with the DialectUIManager.
final DialectEditor editor = (DialectEditor)
DialectUIManager.INSTANCE.openEditor(siriusSession, description, monitor);
Okay, this works. But it open it in the editor in the part market as org.eclipse.ui.editorss. This it not what I want
what does not work:
I want to show it in the "Library Part". I can move it manually with the mouse after open the editor, but how can i tell DialectUIManager to open it direct there. Or how can I programmatically it move there.
I do a lot of google research but i don't found a solution. The only thing I found was a hint Pierre-Charles David https:// www. eclipse.org/forums/index.php?t=msg&th=998476&goto=1631138&#msg_1631138
If you need is simply to show the editor outside of the main editor
area, this is possible since Eclipse 4.2 (e4 does not really treat the
main editor area as something special), so you can have your editor
"around" another editor in the middle of other views.
But at this step I stuck. I also ask it in the Sirius Forum but they say its a Eclipse E4 problem
Thanks for help, code snippets or links to correct part of manual.
I've found a solution. It's not very nice, but it works. I execute these code here after the editors have opened.
What the code does:
He is looking for the MPlaceholder which has the ID: org. eclipse. ui. editorss. There he descends until he is with the parts. These are in the Compatibly editor mode. Then he chooses the part we wants to move out of and Attach them to the MPartStack target.
public static void movePart(MApplication application,
EModelService modelService) {
MPart partToMove = null;
MUIElement muiElement =
modelService.find("org.eclipse.ui.editorss", application);
if (muiElement instanceof MPlaceholder) {
MPlaceholder placeholder = (MPlaceholder) muiElement;
MUIElement ref = placeholder.getRef();
if (ref instanceof MArea) {
MArea area = (MArea) ref;
List<MPartSashContainerElement> children = area.getChildren();
for (MPartSashContainerElement mPartSashContainerElement
: children) {
if (mPartSashContainerElement instanceof MPartStack) {
MPartStack partStack = (MPartStack) mPartSashContainerElement;
List<MStackElement> children2 = partStack.getChildren();
for (MStackElement mStackElement : children2) {
if (mStackElement instanceof MPart) {
MPart part = (MPart) mStackElement;
// Library is the Editor Name wiche I want to move
if (part.getLabel().equals("Library")) {
partToMove = part;
break;
}
}
}
}
}
}
}
if (partToMove != null) {
moveElement(modelService, application, partToMove);
}
}
private static void moveElement(EModelService modelService,
MApplication application, MPart part) {
// target PartStack
MUIElement find = modelService.find("de.bsg.onesps.rcp.
partstack.library", application);
if (find instanceof MPartStack) {
MPartStack mPartStack = (MPartStack) find;
mPartStack.getChildren().add(part);
mPartStack.setSelectedElement(part);
}
}
I am trying to create a plug-in, which will show local .html file inside internal browser. Currently i am extending class ViewPart, and writing code into its createPartControl method. Most of people are using this snippet
IWebBrowser browser = PlatformUI.getWorkbench().getBrowserSupport().createBrowser("SOMELABEL");
browser.openURL(url);
Problem is that this snippet opens another view where internal browser is opened, but in my case it needs to be in this view...
I also tried other forms of createBrowser method, e.g.
createBrowser(int style, String browserId, String name, String tooltip);
where i tried to configure flags, but all of these options just open another view or editor. Is there a way do draw HTML inside my view?
I have found the solution. Yes i have tried Browser control before, but i did not created Browser properly (wrong arguments). If anybody else tries to implement ViewPart displaying html pages via SWT, here is the code snippet.
public class CustomView extends ViewPart {
private static final String URL = "file:///d:/playground/d3/project.html";
#Override
public void createPartControl(Composite parent) {
final Browser browser = new Browser(parent, SWT.NONE);
browser.setUrl(URL);
}
#Override
public void setFocus() {
}
}
When I open a file in a TextEditor the status bar shows information like positions, whether the file is writable or not ...
Now I have created a MultiPageEditor that contains a class derived from org.eclipse.ui.editors.text.TextEditor. If I edit a file with this editor the status bar remains empty.
Is there an easy way make the standard status bar items visible if the TextEditor is embedded in a MultiPageEditor?
Im using Eclipse Kepler.
In your MultiPageEditorActionBarContributor class you need to do:
private StatusLineContributionItem _showLine;
...
_showLine = new StatusLineContributionItem(ITextEditorActionConstants.STATUS_CATEGORY_INPUT_POSITION, true, 14);
#Override
public void setActivePage(IEditorPart part)
{
if (part instanceof ITextEditorExtension)
{
ITextEditorExtension extension = (ITextEditorExtension)part;
extension.setStatusField(_showLine, ITextEditorActionConstants.STATUS_CATEGORY_INPUT_POSITION);
}
}
#Override
public void contributeToStatusLine(IStatusLineManager statusLineManager)
{
statusLineManager.add(_showLine);
}
I successfully extended the PyDev editor in Eclipse with a side-by-side display, but I can't copy the contents of the extra SourceViewer that I added. I can select some text in the display, but when I press Ctrl+C, it always copies the main PyDev editor's selected text.
I found an article on key bindings in Eclipse editors, but the code there seems incomplete and a bit out-of-date. How can I configure the copy command to copy from whichever SourceViewer has focus?
The reason I want to do this is that I've written a tool for live coding in Python, and it would be much easier for users to submit bug reports if they could just copy the display and paste it into the bug description.
David Green's article was a good start, but it took a bit of digging to make it all work. I published a full example project on GitHub, and I'll post a couple of snippets here.
The TextViewerSupport class wires up a new action handler for each command you want to delegate to the extra text viewer. If you have multiple text viewers, just instantiate a TextViewerSupport object for each of them. It wires up everything in its constructor.
public TextViewerSupport(TextViewer textViewer) {
this.textViewer = textViewer;
StyledText textWidget = textViewer.getTextWidget();
textWidget.addFocusListener(this);
textWidget.addDisposeListener(this);
IWorkbenchWindow window = PlatformUI.getWorkbench()
.getActiveWorkbenchWindow();
handlerService = (IHandlerService) window
.getService(IHandlerService.class);
if (textViewer.getTextWidget().isFocusControl()) {
activateContext();
}
}
The activateContext() method has a list of all the commands you want to delegate, and registers a new handler for each one. This was one of the changes from David's article; his ITextEditorActionDefinitionIds has been deprecated and replaced with IWorkbenchCommandConstants.
protected void activateContext() {
if (handlerActivations.isEmpty()) {
activateHandler(ITextOperationTarget.COPY,
IWorkbenchCommandConstants.EDIT_COPY);
}
}
// Add a single handler.
protected void activateHandler(int operation, String actionDefinitionId) {
StyledText textWidget = textViewer.getTextWidget();
IHandler actionHandler = createActionHandler(operation,
actionDefinitionId);
IHandlerActivation handlerActivation = handlerService.activateHandler(
actionDefinitionId, actionHandler,
new ActiveFocusControlExpression(textWidget));
handlerActivations.add(handlerActivation);
}
// Create a handler that delegates to the text viewer.
private IHandler createActionHandler(final int operation,
String actionDefinitionId) {
Action action = new Action() {
#Override
public void run() {
if (textViewer.canDoOperation(operation)) {
textViewer.doOperation(operation);
}
}
};
action.setActionDefinitionId(actionDefinitionId);
return new ActionHandler(action);
}
The ActiveFocusControlExpression gives the new handler a high enough priority that it will replace the standard handler, and it's almost identical to David's version. However, to get it to compile, I had to add extra dependencies to my plug-in manifest: I imported packages org.eclipse.core.expressions and org.eclipse.ui.texteditor.
I'm trying to create an Eclipse plugin to support a proprietary project file format. My goal is to be able to drag and drop a file in the Project Explorer (any type of file) onto a file of the type I support, and have the name of the file being dragged appended to the end of the proprietary file.
Right now, I have a custom editor that can parse out some data from an existing file in a manageable way. This means that I have an editor associated with the file type, such that my special icon shows up next to it. I don't know if that's relevant.
I'm attempting to use the extension point "org.eclipse.ui.dropActions" but I'm not sure how to register my DropActionDelegate (implements org.eclipse.ui.part.IDropActionDelegate) such that it will be called when a file is dropped onto one of my type within the Project Explorer.
Anybody have any ideas? Am I even on the right track with the DropActionDelegate?
You are on the right track implementing an IDropActionDelegate:
class DropActionDelegate implements IDropActionDelegate {
#Override
public boolean run(Object source, Object target) {
String transferredData (String) target; // whatever type is needed
return true; // if drop successful
}
}
The purpose of the extension point org.eclipse.ui.dropActions is to provide drop behaviour to views which you don't have defined yourself (like the Project Explorer).
You register the drop action extension like this:
<extension point="org.eclipse.ui.dropActions">
<action
id="my_drop_action"
class="com.xyz.DropActionDelegate">
</action>
</extension>
Don't forget to attach an adequate listener to your editor in your plugin code:
class DragListener implements DragSourceListener {
#Override
public void dragStart(DragSourceEvent event) {
}
#Override
public void dragSetData(DragSourceEvent event) {
PluginTransferData p;
p = new PluginTransferData(
"my_drop_action", // must be id of registered drop action
"some_data" // may be of arbitrary type
);
event.data = p;
}
#Override
public void dragFinished(DragSourceEvent event) {
}
}