Can anyone show me how to use org.eclipse.jface.viewers.ColumnViewerToolTipSupport to create a tooltip similar to the one shown in Eclipse IDE when you hover your mouse to any Java element? That is, I want the tooltip to be resizable, I also want to hook an F2 key to show the tooltip on demand in addition to mouse hover.
I have managed to add my own custom control to the tooltip (a TableViewer), but I can't see any methods/ways to set the tooltip to be resizable and only dissappear when user clicks on a key (e.g. esc key). Is this even possible with ColumnViewerToolTipSupport?
I have used as my reference an example at http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.jface.snippets/Eclipse%20JFace%20Snippets/org/eclipse/jface/snippets/viewers/Snippet037FancyCustomTooltips.java?view=markup
Thanks.
The window appearing in Eclipse when you hover mouse pointer over a Java element is not a tooltip, but InformationControl. See org.eclipse.jface.text.AbstractInformationControlManager.install(Control) for more information.
I don't think it will work right away with table cells, so you probably will have to combine some ColumnViewerToolTipSupport techniques with it.
Cheers,
Max
Related
Is there a way to access the mouse over popup in VSCode via Keyboard and navigate in it?
I often use the mouse over to get the namespace of function or variable ...
So I want to place the cursor on "bar", popup the hover (Show Hover Ctrl+k Ctrl+i), focus it, mark some text (eg. namespace::functioname), copy and close the hover.
namespace foo{
void bar();
}
First problem, the hover doesn't get the focus and I don't know how to focus it. But there is another feature "Show defintion preview hover", which actually gets focused. So far so good. But I still cannot mark or copy text inside the hover via keyboard.
Show hover (not focused):
Show definition preview hover (focused):
But I still cannot mark or copy text inside the hover via keyboard.
That should change with VSCode 1.68 (May 2022):
Lock hovers to more easily mouse over them
Some custom hovers cannot be moused over and others are tricky to mouse over without hiding it because of other things in the way (eg. like a scroll bar).
Holding alt while a hover is active will now "lock" it, giving it a wider border and preventing moving the mouse outside of the hover widget or whatever triggered it from hiding it.
This is primarily an accessibility feature to make hovers play nice with screen magnifiers but it is also useful for copying text from certain hovers.
Note that this feature only applies outside of the editor because editor hovers can always be moused over unless specified otherwise via a setting.
This will be helpful for other views (debug, terminal, ...) where variables with their popup can appear as well.
In the editor, see microsoft/vscode issue 63296
ctrl+K ctrl+I to show the hover and focus it
ctrl+A to select all the hover content
ctrl+C to copy to clipboard
It does indeed work for me (on windows) for the first two steps, however ctrl+C does not copy the text selected with ctrl+A.
It seems like there are two different selections possible in the hover:
ctrl+Aselects everything with a dark blue.
When selecting some text in the hover with the mouse (i.e. press the left mouse button while near/over a char, move mouse, release left mouse button) the selected text is shown in a lighter and brighter blue.
The two selections can coexist.
ctrl+C always copies the text selected with the mouse, or nothing if there's no such selection, no matter whether a ctrl+A selection also has been done.
If there's only a ctrl+A selection, ctrl+C doesn't copy anything.
The two selections can be selected in any order. The order doesn't change the behavior.
Think I found out what you were after.
The shortcut is: Ctrl+K Ctrl+I
See: Trigger advanced hover information with keyboard
please try control + mouse click
it may be help you
I open a context menu programmatically. Now additionally I would like to highlight the first menu entry.
This highlighting happens when I move with the mouse over the context menu or press the arrow keys on the keyboard. I am interested how I can trigger this programmatically.
I know the API of MenuItem does not offer this feature out of the box. So I tried to fire some MouseEvents of the type MouseOver and MouseHover, but without any success.
Has anybody an idea how to implement this feature?
I am not sure if you can change menuitem highlight colors, I haven't seen any previous example before. Look at this though: Change eclipse menuitem color
If you want to simulate what the user does and if you happen to know the location of the menu item, you can use Display#setCursorLocation() to position the mouse pointer over the menu item.
Note however, that if and how a menu item is highlighted is platform specific.
You should not use this method other than for demonstration of test purposes. If your application needs to highlight or preselect an entry in a list of choices,
you should probably use another widget. If you more describe your use case, we may be able to find a suitable widget.
I have a graphical representation for my model, and I want to implement a tooltip that look like jdt tooltip in the following :
- the tooltip shows up when hover over the object in the canvas
- being able to click on the tooltip window to focus, and scroll bar is there if needed.
- Ability to resize the tooltip window after the user change focus to it
- being able to assign command with F2 keybind to pop up the tooltip window (I know how to create command, and how to associate keybind with it)
- Ability to have hyperlinks in the tooltip text ( optional )
I do not know from where to start.
Which eclipse interfaces/classes to implement, extensions to add, adaptors to support.
I tried to find a work through tutorial but I could not.
Thanks in advance
A lot of what you describe is specific to the Eclipse Text editor and JDT code so won't be available in a Canvas so you would have to write your own code.
You can create a tooltip based on org.eclipse.jface.window.ToolTip. If the tooltip contains StyledText you can create hyperlinks.
There is an example of a fairly elaborate custom tooltip Here
What Eclipse does when the tooltip is clicked is open a new normal window of exactly the same size and contents over the tooltip and close the tooltip.
A client of mine is particularly keen on the Wave toolbar as a measure of accessibility, and will not accept any red errors for any reason.
The sub-menu arrow in GWT by default has no alt-text associated with it, causing a wave toolbar error when the menu is on screen.
Is there a simple way to add alt text to this image, or am I going to have to sub-class MenuBar?
thanks in advance
I don't know how I accidentally did this but the methods menu in my Eclipse window is too big and I want to resize it back. The menu I'm talking about is the one that pops up when you type a "." after an object and it brings down a list of methods you can use on it. I must have accidentally dragged the menu to large and now I can't drag it back. Does anyone know the name of this menu? Or better yet, how I can resize it back to normal?
This menu can be re-sized like a classic window by putting the mouse pointer at the bottom right of the menu and dragging the mouse to expand or reduce it.