Eclipse: Update compare view - eclipse

Eclipse provides the option to Compare With > Each Other for files.
I'd like to refresh the resulting view for two text files in my target folder successively while developing my application.
F5 does not work.

I have a drop down called JavaScript Source Compare. If I switch between this and Text Compare and back again it does a refresh. This is quicker than closing and reopening. Hope this helps.

Related

how to remove google sign in button in eclipse

I'm facing a wierd problem. My eclipse, has a google signin button which is occupying some of the space which I do not want to happen. Initially it had "Sign-in to Google" text along with it. I've followed some blog post and set accordingly to show just the icon (I don't remember that blog post link).
But now, the icon is getting replicating .. it is being shown 12 times. It is actually creating childs :P
I've gone through all the options present in Customize Perspective menu, none of them had this button listed. Can someone help me in removing that google sign button from my perspective? One possible suspect is- my eclipse crashes when I suspend and wakeup my machine.
You can use the Window > Reset Perspective... menu command to reset the perspective to its default state, which might eliminate that toolbar and buttons. If that fails, I would create a new workspace and import the projects into it using File > Import > Existing Projects into Workspace.
If you want to try to salvage your existing workspace, it's possible to do so my manually editing Eclipse's internal file that stores your Workbench layout, but it's a bit tricky. Here are the steps I've followed to eliminate a similar repeated toolbar item:
Exit Eclipse.
Find the Workbench layout file, it's path is <workbench>\.metadata\.plugins\org.eclipse.e4.workbench\workbench.xmi. Make a backup of this file before you touch it - this is essential because it's easy to corrupt the file if you change the wrong things.
Open the file in your favorite XML-aware editor - most packages of Eclipse include the XML editor that works just fine1, but be aware that if you use Eclipse to edit the file you can't have Eclipse open on the workspace that contains the workbench.xmi you want to edit.
Find the section of <trimBars> nodes in the XML; from there you have to determine which <trimBars> node you need to edit. In your case it looks like a vertical one, probably with a side="Right" attribute.
Under the correct <trimBars> node you'll find multiple <chlidren> nodes, each with an elementId attribute that should help you identify it; you're looking for <children> nodes that are identified as something related to the Google plugin.
Delete the <children> nodes that seem related to the unwanted toolbar buttons. In your case, it appears that there is an entire toolbar that you might want to eliminate, so you might want to delete the entire containing <trimBars> node.
Save the file and start Eclipse on that workspace.
1Some packages of Eclipse include EMF tools that will open it in a special XMI editor that does not provide a view of the source, only a structural tree view. Depending on how you like to work with XML, this might be easier than editing raw XML.
This is not a perspective but a view. You can hover over that bar with the buttons and click Alt+Shift+F1 to check where this View comes from. Then you can either disable/uninstall the contributing feature (Help -> Installation Details) or check where the feature came from.
If it comes from the IDE, you can open a bug for it. If it is contributed from a third party plugin, contact the developers of that plugin.
There is an eclipse bug concerning duplicate view toolbar buttons in Luna that has recently closed as well. Maybe this solves your problem as well.
Edit: Taken from this bug:
root cause is that in Luna 4.4M5 WorkbenchWindowControlContribution.createControl is called twice, the
first time with a null value for
WorkbenchWindowControlContribution.getWorkbenchWindow() while it is
still being created. This is related to what has been reported here
https://bugs.eclipse.org/bugs/show_bug.cgi?id=427452
second cause is that my createControl(Composite parent) method was calling PlatformUI.getWorkbench().getActiveWorkbenchWindow() instead
of WorkbenchWindowControlContribution.getWorkbenchWindow(). This
resulted in an attempt to create a new Workbench Window, which
recursively calls createControl() again. This has already been
reported here https://bugs.eclipse.org/bugs/show_bug.cgi?id=366708

Eclipse - Showing changes before saving

I run into this problem a lot. Sometimes I would edit and forget about it in Eclipse or maybe keyboard moved randomly and input random characters. How do I view current changes compared to the last save easily in Eclipse? That way, I would know what changes took effect before I save.
If you just want to see what lines have changed, then you can follow the instructions in this answer in order to show a highlight of the changed lines on the left-hand side of your editor.
Aside from that I don't think it's easy to tell what's recently been changed without saving. If you do save then you have the option of comparing with the previous version: right-click on the file in the tree and choose "Compare With -> Local History" and then choose a version you saved earlier.
If you save it you can also compare against what's in source control, of course. You are using some sort of source control?
You can use either
compare editor-show changes between 2 or 3 files by showing each file side-by-side
First select the files on the Project Explorer with control-click.
Now right-click -> Select Compare With / Each Other.
or
Quick Diff - General > Editors > Text Editors > Quick Diff

How to edit a working set or maybe there are other tools for fast filtering?

I have a lot of projects in my package view with a lot of resources(.java, .xml, .vm, .js, and so on) but I work only with several of them and the list could change with the time. I need a tool that allow me to filter quickly only selected files("my files") and back to a full projects list. I thought I can do that using working sets but I can't find a way to add and delete files from an existing working set.
Go to Window->Customize Perspective. In Command And Groups Availability tab enable Window Working Set option if not enabled. Click OK
Go to Window->Working Sets->Edit. A dialog will pop up. Click Edit button after selecting any working set.

How to programmatically reload a text editor in Eclipse?

In Eclipse, if I change a file programmatically, and it is open in a text editor, it doesn't always reload, not even when refreshing the resource programmatically. How can I forcibly reload the text editor from code so that it show the changed file contents?
In your project explorer or navigator, you can right-click on the file that's currently open and select refresh. This has always worked for me, even when editing files with several programs. Make sure to click the file itself, not parent objects like packages or folders or projects.
Edit
Refreshing programmatically? I would look into an Eclipse scripting tool:
http://eclipse-shell.sourceforge.net/
I guess there was another one called Monkey, but it doesn't appear to be maintained.
I don't know of any possibility to programmatically reload the file.
Some editors (e.g. GMF editors) look for changes in the underlying files, and refresh themselves, but this is not required at all.
I don't think that a forced reload is an option implemented globally, as in some cases there could be some merging steps involved that can be quite erroneous.
My ideas to solve this:
Have a specific editor that refreshes its content when the used resource changes (this can be timeconsuming);
Or close the editors of the file and reopen them (this is ugly in the eye of the user).
Since the Luna release of eclipse there's no need to reload files with F5/manual Refresh.
Really nice, especially as there was a bug with the F5 key binding.

Source Editor Tab order in Netbeans 6.5

I recently switched to Netbeans from Eclipse, and the one thing that I liked about Eclipse I'd like to get in Netbeans:
The order of the tabs at the top of the Source Editor in Eclipse seems to be related to most recently used, so if I have a group of 5 files I'm working on at one time, they are all likely to be visible in the tab list, no matter how many tabs I have open.
In Netbeans, this isn't the case - I don't know what the order is, but it isn't useful for switching between my active files quickly - its usually faster to re-open the file to switch to the correct tab than to actually use the tab system.
Is there an option setting or a plugin that can change this behavior to something more like Eclipse?
By default the tabs in NetBeans are ordered acording to when they were opened. I don't think there's a way how to change it right in NetBeans and don't know about any plugin neither. I think this behaviour is just a matter of taste - I was used to NetBeans behaviour and when I'm using Eclipse, I always get confused about shuffled tabs. But as Kevin said you can drag the tabs to change their order.
When you press CTRL + TAB, the documents in the popup window are ordered acording to last used. This might be usefull for you.
Another (partial) solution might be docking a documents window (Window -> Documents) which contains opened documents and where documents are ordered alphabetically. It's better than re-openenig the files (as you wrote) especially if youre files are spread in different packages and you can't see them in projects/files view on one screen.
I don't think it does. However, you can drag the tabs to the positions you want them in. I would suggest just ordering by your liking manually.