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.
Related
I have a org.eclipse.swt.browser.Browser instance created in a composite. I would like to know when some content is pasted in the browser using the (platform specific) right click context menu and selecting the paste option.
In the menuDetected() of MenuDetectListener, I get a notification when the context menu is detected in the browser.
How can I know if the Paste option is selected from the context menu?
Regards,
Noopur
No you can't access the selected context menu item. There is no direct provision for that. At least not in eclipse 3.7. Although, you could try different combinations of events for determining the menu item. For example, in windows the internet explorer populates the status bar with 'inserts the clipboard...' when your mouse pointer hovers over the Paste menu item, you can capture this using StatusTextListener event.
Note: The hack is not an elegant solution, even if you get it working, there is still some possibility that it may break with new or older releases of SWT or in fact its behavior may vary with operating systems !!
My question can be split into three:
Is it possible to hide/remove arbitrary context menu items in Eclipse (3.6) by ...
standard UI?
some existing plug-in?
custom plug-in?
I failed to find ways to do this by methods 1 and 2. If the only option is creating custom plug-in, could anyone push me towards the right direction where to start (I have some experience in Java, but not in Eclipse plug-ins).
You can hide menus or menu entries through the standard GUI: see help
To hide a menu item or toolbar button:
Switch to the perspective that you want to configure.
Select Window > Customize Perspective....
Open the Menu Visibility or Tool Bar Visibility tab.
Find the item you want to hide.
Uncheck the check box next to the item. Uncheck a menu to hide all its children.
Click OK to cause the changes to take effect.
But that will hide this entry from all the menus (contextual or not) in which it is present.
So it may not be as fine-grained as you want through the GUI.
You can also try it through a plugin (see also Menu contribution)
The first steps are pretty standard for using extensions in Eclipse.
Open the plugin.xml file and add the org.eclipse.ui.activities extension.
Then create an activity node and give it a unique ID.
Then create an activityPatternBinding node and use the unique ID for the activity to find the pattern node to the activity node.
The activityPatternBinding node requires that you supply a regular expression for the ID string of the UI element that you wish to hide.
The problem is that there appears to be at least 3 ways that menu items and toolbar buttons are added to the UI.
The first way is through the newer Command/Menu Extensions.
The second way is through the older ActionSets Extension.
Then there are other UI elements that appear to be hard coded into the Workbench and do not have ID strings and cannot be hidden using the Activities Extension. Luckily there are few of this third type of UI element.
Considering you are talking about the latest Eclipse, I will copy only the first way:
1/ Use the Plug-In Spy
The first way is to use the Plug-In Spy.
Press alt-shift-F2 and click on a menu item or toolbar button that you want to be hidden.
If there is an ID string under the heading "active action definition identifier" then you are in luck.
This item has been added using the Command Extension and you can use this ID as the pattern argument for the Activities Extension.
But not all items that have been added using the Command Extension present their ID string to the plug-in spy.
As a side note, the ID strings are period separated.
For instance the ID for a button might be "org.eclipse.ui.navigate.backwardHistory".
Regular expressions use the period to stand for any character. Luckily the period used as a wild card matches with actual period characters so you don't need to escape them if you don't want to. I find it makes it a bit easier to read if they are not escaped and it is highly unlikely it will cause any ambiguous matches.
I miss a certain functionality in Eclipse. I would like to know the name of the current function the cursor is currently inside. This is useful when browsing unknown code using the search function, for example.
Any idea how to show it? Maybe a plugin?
I'm using the "Toggle Breadcrumb" option from toolbar:
It shows a nice breadcrumb, ending with current function name.
It's quite handy for me, as Outline becomes cumbersome to use if you have zilions of functions.
It produces the following structure above your Java Editor (truncated at the picture below):
The "Outline" view shows the current function.
It may be necessary to enable the 'Link to Editor' option in the Outline View dropdown menu. This might be off by default for CDT.
I was looking for something similar (Xcode-like bar at the top showing the current function, where you can also go to another function by clicking on it to open a popup list of functions). Here is what I settled on with Eclipse 3.5.1 CDT:
I moved the Outline view to the top, resized it to make it a 1-line horizontal strip (don't make it too narrow), and selected "Link With Editor" in its menu, so that it always shows the current function. However, this doesn't open a popup list like Xcode. For that functionality, I assigned a shortcut to the "Show Outline" command which does open a popup list of all functions.
The Eclipse function 'show outline' will pop up a list of outline objects, and it will highlight the object your cursor is inside in grey. It's typically bound to 'ctrl-o' (the letter 'o', not zero), but you can re-bind it as you see fit. I'm running Eclipse with the CDT plugin and it works pretty well for me.
To enable the breadcrumb invoke Toggle Java Editor Breadcrumb in the toolbar or press Alt+Shift+B in the Java editor.
You can also display the Quick Outline (ctrl+o). This way you see the context quickly without having to have a permanent Outline Window linked to the Editor.
Use the "Link With Editor" option on the outline menu
Press Ctrl+o (cursor is currently inside a function at a particular line).
It highlights the current method, or name of the class if the cursor is outside the method body.
You can click on highlighted method.
It has got inline search feature ...start typing name of the method to navigate to the specified method or method with matching search pattern.
If you press again Ctrl+o to shows the inherited members/methods.
Using outline with "link with editor" option worked also for me, thanks!
Just an addition, you can move outline pane in to the same window group as search, progress etc. saves the space in your perspective instead of keeping it at another group.
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
We have a multi-tiered/hierarchical YUI menu activated via a YUI menu button. Everything in this menu works pretty well. If you mouseover a menu item with a submenu, the submenu appears as expected. You can select an item from this submenu just fine.
The problem, however, is that you can also click on the parent items of this menu which closes the entire menu. In fact, I want the opposite. I'd like a click of a parent menu item leave the top level menu open and open the submenu (i.e. I want a click to be identical to a mouseover event in terms of functionality).
Side note: This isn't an issue on a typical web browser (e.g. Firefox) where the click event doesn't matter because you can't have a click without a mouseover. This is an issue on the iPhone which doesn't have a mouseover event.
I've been playing with the autosubmenudisplay properties and keepopen properties, hoping I can just handle the parent item click events to do what I want but, so far, I've been unsuccessful. If I set autosubmenudisplay to false, I can't figure out how to get the submenus to display manually. The keepopen property doesn't seem to work rather I set it on the menu or submenus.
Is there a way to get the behavior I want so our iPhone users are happy?
Todd Kloots, author of the YUI Button and Menu widgets here. Took at look at your request. Unfortunately the current version YUI Button and Menu aren't designed to support the type of interaction you are looking to create. Feel free to file a feature request via SourceForge and I'll try to work on this for a future version of YUI.
Todd
It's not exactly what you asked for, but have you looked at iUI? You may be able to pick up some tricks from the implementation.