enable context menu for specific cell or item in uitable or uilistbox in matlab

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Jim Hokanson
Jim Hokanson on 25 Feb 2022
Answered: Jim Hokanson on 25 Mar 2022
This is a cross posting from:
Had no luck there so far.
Basically, I'd like to know how to get a context menu to fire on a specific item in a uitable or uilistbox. There seems to be no way to do this without first click on an entry, and then right clicking at the exact same location and assuming that the user hasn't moved their mouse. Even this double clicking approach (left, then right) would be super awkward.

Accepted Answer

Jim Hokanson
Jim Hokanson on 25 Mar 2022
Here's a solution with left click. Couldn't get right to work. More info at linked StackOverflow page above. Code copied here:
classdef wtf < handle
properties
h %struct, this was an appdesigner handle
cm %context menu
end
methods
function obj = wtf()
h = struct;
h.UIFigure = uifigure();
h.UITable = uitable(h.UIFigure);
obj.h = h;
obj.h.UITable.SelectionChangedFcn = @obj.tableCall;
%Some data ...
s = struct;
s.a = (1:4)';
s.b = (5:8)';
obj.h.UITable.Data = struct2table(s);
%Our context menu
cm = uicontextmenu(obj.h.UIFigure);
m = uimenu(cm,'Text','Menu1');
obj.cm = cm;
%WTF ... without this we don't get a valid CurrentPoint
obj.h.UIFigure.WindowButtonMotionFcn = @obj.mouseMove;
end
function tableCall(obj,x,y)
cp = get (obj.h.UIFigure, 'CurrentPoint');
open(obj.cm,cp(1),cp(2));
selected_cell = y.Selection;
%Now we can run something on the context menu
%that targets the selected cell
end
function mouseMove(obj,x,y)
%we could store a point here
end
end
end

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