I want to override the delete command when I do a right-click on a package folder for exemple.
First I add an extension point (handler on org.eclipse.ui.edit.delete) to use my delete class on different cases and it work great when I press Delete button or when I go to Edit->Delete.
But when I use context menu, original delete action is use and I don't know how to add a handler on right-click command.I create a new command in context menu, My Delete, and I work well but I have 2 delete in the context menu.
I want to override original delete with mine.
I hope I can find an Eclipse RCP expert here to help me.
Thanks.
Sincerely,
Arnaud.
You can't override that delete in the context menu. The explorer uses an Action to put it there, and that's just a step up from an SWT.Selection event (not tied into the commands/keybinding system).
Related
I want to delete perspectives which I have created. But here I don't want to use Eclipse's own page. I want to create my own page and display list of Perspectives and give option to delete it or make it default. I don't want to use default Eclipse page because I don't need "Fast View" and other options for perspectives. That's why I decided to create my own page list only what I need. But I don't know how to get list of perspectives and methods to make it default and delete.
This the page which I am displaying right now in my application:
You use the IPerspectiveRegistry to manipulate the perspective registry:
IPerspectiveRegistry perspectiveRegistry = PlatformUI.getWorkbench().getPerspectiveRegistry();
You can get the list of perspectives from the registry with:
IPerspectiveDescriptor [] perspectives = perspectiveRegistry.getPerspectives();
You can delete a perspective by calling the registry method
public void deletePerspective(IPerspectiveDescriptor persp)
but note that the JavaDoc says:
Deletes a perspective. Has no effect if the perspective is defined in
an extension.
I have a wizard that should be launched in different ways: from the menu (org.eclipse.ui.menus + org.eclipse.ui.actionSets) and from the New context menu. For the later I used the extension org.eclipse.ui.newWizards to add the wizard into the context menu. So far, so good...
For some reasons I had to subclass the wizard dialog (changed the finish button text in the dialog). If the wizard is launched from the menu, the action (defined in org.eclipse.ui.actionSets) creates and opens this special wizard dialog and everything is fine.
If the wizard is launched from the context menu (org.eclipse.ui.newWizards), the internal class NewWizardShortcutAction is taken that creates the "normal" wizard dialog (and not my subclass) to open the wizard.
Is there any way to modify the implementation of the extension point that only my subclassed wizard dialog is used?
By default the command uses org.eclipse.ui.internal.handlers.WizardHandler.New to launch the new wizard dialog, and that's the default handler provided to the command.
It would be possible to register a different handler at the Workbench Window level, and that would override the default handler while a Workbench Window was active. It could be done in the plugin.xml or in your application ActionBarAdvisor:
IHandlerService hs = (IHandlerService) window.getService(IHandlerService.class);
hs.activateHandler(IWorkbenchCommandConstants.FILE_NEW, new MyNewHandler());
But you would have to implement whatever support was needed in the handler to launch the wizard with the correct selection.
I'm also trying to do the same. The way I will be doing this is to register my own custom action, by removing the old action, will post back the solution if it works !
Update: I ended up using a different approach. If you see the run method in NewWizardShortcutAction, it is just calling init, creating the WizardDialog and opening it. So in my override of the init in MyWizard class, I just used my own MyWizardDialog extending from WizardDialog and opened it. Subsequently, I need to make that the run function will not re-open the WizardDialog, so I track that using a boolean in MyWizard that will disallow getting any pages so that the WizardDialog in the run method will not be displayed.
This is a hacky solution but works !
In our project at work, they have written one plug-in for eclipse helios. They have used the
objectContribution for adding the popups and written respective action classes for them.
I am trying to add the shortcut key for one of the popup menu item in project explorer.
But I read here http://www.eclipse.org/forums/index.php/mv/tree/172398/#page_top that there is no way to call key bindings from objectContribution and need to migrate it to handlers/commands.
Is there any other way to bind keys to popups instead of migrate them to handlers?
Thanks in advance!!
No, objectContributions cannot accept keybindings. From legacy action extension points, only actionSets accept keybindings correctly.
The other option available (as mentioned) is to provide a handler for the command you want. The handler won't interfere with the objectContribution behaviour (the objectContribution action delegate class will still be called directly from the menu item, the handler would be called when using a keybinding).
PW
Is there a shortcut in Eclipse for "open project"? Ideally, I'd like something like the "Open Resource" dialog.
I want this because I have a "testing" project, which I use whenever I want to try something out… But it's annoying to scroll through the massive Navigator trying to find it and click it when it gets closed.
Not by default. The action is defined here, with no keyboard shortcut.
http://eclipse-tools.sourceforge.net/Keyboard_shortcuts_(3.0).pdf
You could add a Working Set that contains only your test project, and use 'Select Working Set...' functionality from the Navigator tab's view menu:
While this won't open the project for you, it WILL make it the only thing you see in navigator or package explorer.
Once you've added it, it will be in a list and you won't need to open the 'Select Working Set...' dialog, just select 'my test project' from the popup menu. It's triggered by that small triangle in the upper right of Navigator, I'm not sure if there is a shortcut.
To switch back to your normal work, simply 'Deselect Working Set' and you will then see everything again.
I also find the 'Collapse All' button/shortcut to be handy when finding things in the Package Explorer or Navigator tabs.
I'll offer a solution to a problem I've had which, if I've interpreted the question correctly, is very similar to yours.
I find that when I have a lot of projects with loads of expanded directories/packages inside Project Explorer, trying to find a particular project is irritating because I have to scroll through all this. I could collapse all projects down but then I also lose my current position in every project.
I'd just like to be able to search for a particular project by name and open it, in the Project Explorer tree. Opening a file inside the project using Open Resource isn't a good enough workaround, as having to think of the name of a file inside that project completely out of context is often equally annoying!
A solution that works great (at least in Eclipse Juno, Mac OSX) is, with the Project Explorer focused, to hold Shift and start typing the project name. This dynamically selects the best matching project in the Explorer as you type. Then with your hands still on the keyboard you can use the arrow keys to open up and browse the project.
It ain't pretty but it gets the job done, and saves some valuable seconds :)
You could also:
switch workspace (in a workspace with only this test project in it) (no shortcut: you can define one)
install mylyn and select a "test" task (which would immediately empty your Navigator view, leaving only the relevant classes/methods).
If the test project is already opened and you know the name of the class in it, you could go to this class with Navigate -> Open Type (There is a shorcut also, on mac osx is Shift + Command + T)
I find it easier to move with this method, but I didn't know it until someone else showed me, maybe it helps.
You can set a shortcut at Preferences->General->Keys, search for Open Project. However, for me it does not work from the editor itself. I have to click the package explorer, for example. Also, if you have a lot of projects, there will be a huge list of them as well, as expected.
Eclipse currently shows the task tags (// TODO) from all open projects. I would be grateful if anyone could point out the preference, where I could restrict the scope of tasks displayed (e.g. only tasks from current project).
In Eclipse Helios (3.6) you can configure the scope.
Down arrow at the top right -> Configure Contents:
Select a configuration on the left (or create a new one) and on the right in the Scope section select "On any element in same project".
There should be a down arrow in the top-right with several options in it. For the old Eclipse the option you want is Filters... And for the newer Eclipse the option is now Configure Contents. At the top of the Configure Contents dialog is a scope selection with options you want, I think.. If not check preferences and search for tasks, or scope. It should be in there somewhere.
Close projects that you aren't working on. Tasks show for any part of the workspace, so remove projects that you arent working on by doing a close operation. (right click on the project in the project explorer and then "close project")
Configure Contents... can be used to filter to things like working sets (if you're not already using working sets, you should), but yet another way is to use Mylyn to filter out any UI elements not relevant for what you're currently working on.
In Eclipse 2019-06:
1- Open the Tasks window.
2- Click on the arrow pointing down ▽.
3- Click on Filters...
4- In the Configurations panel on the left select TODOs (or any configuration that you have saved).
5- Under Scope select On elements in selected projects
6- Click on Apply and Close
Now the task view will only show the tasks of the project where you are at the moment.
Simply close the projects you are not working on.
You can leave them in the workspace, too.
In Eclipse Juno 4.2.1, I found that it's possible to disable specific projects TODO tasks.
In the projects properties open:
Java Compiler > Task Tags
From that page check the option "Enable project specific settings" and remove the TODO entry from the list below, after that the TODO comments from that project won't be shown in Tasks.
You could also remove other tags from the list.
Filtering by working sets works fine, but I had to put the packages into a working set, rather than the whole project.
AFAIK the Eclipse task list is workspace-based and cannot really be filtered by default.