Editbox Right Click

Ghost Dancer · 03-29-13, 07:57 AM

I want to add some text formatting options to my Noteworthy addon - the options will be accessed via its right-click context menu. However, right clicking in an editbox clears the current selected text and just sets a new cursor position (i.e. the same as left clicking).

Is there any way of preventing this happening so the selection remains when my context menu is shown? Bear in mind that I need to detect a right-click to open the context menu and I also need to keep the default left click functionality so the user can still click, select text etc.

Phanx · 03-29-13, 04:18 PM

Post the code you're using the create the current editbox.

Ghost Dancer · 03-30-13, 01:18 PM

I'm using the following template for the editbox:

Code:

<EditBox name="$parentEditBox" letters="5000" multiLine="true" enableMouse="true" autoFocus="false">
	<Size>
		<AbsDimension x="315" y="315" />
	</Size>
	
	<Scripts>
		<OnEscapePressed>self:ClearFocus();</OnEscapePressed>
		<OnMouseUp>
			if button == "LeftButton" then
				Noteworthy_SetTextFocus();
			else
				Noteworthy_EditContextMenu();
			end
		</OnMouseUp>
		<OnCursorChanged>Noteworthy_CheckLink(self);</OnCursorChanged>
		<OnReceiveDrag>Noteworthy_Drag();</OnReceiveDrag>
	</Scripts>
	
	<FontString inherits="ChatFontNormal" />
</EditBox>

Phanx · 03-31-13, 12:22 AM

Based on some quick testing, it looks like there is no way to prevent the default behavior of the editbox highlight, so you'd need to store the highlight and cursor positions yourself in OnMouseUp with the LeftButton, then use editbox:ClearFocus() on OnMouseDown and OnMouseUp with the RightButton, and finally restore the cursor and highlight positions when your menu closes.

It might be easier to add control buttons for the formatting options, so you're not wrestling with the baked-in highlighting behavior.

Ghost Dancer · 03-31-13, 05:59 AM

Yeah, I had a feeling that might be the case but thought it was worth asking. Thanks for replying. I think a separate button is the way to go - even if I store the highlight position, it would be confusing to the user I think.

Ghost Dancer · 03-31-13, 02:28 PM

After some further thought on this I've managed to code a solution by saving and restoring the selection. I'll post the code once I've cleaned it up a bit (its a bit messy ATM).

Ghost Dancer · 04-01-13, 03:50 AM

OK, here's the XML code:

Code:

<EditBox name="$parentEditBox" letters="5000" multiLine="true" enableMouse="true" autoFocus="false">
	<Size>
		<AbsDimension x="315" y="315" />
	</Size>
	
	<Scripts>
		<OnCursorChanged>MyAddon_EditBoxCursor(self);</OnCursorChanged>
		<OnHide>MyAddon_CurrentEditBox = nil;</OnHide>
		<OnMouseDown>MyAddon_MouseButton = button;</OnMouseDown>
		<OnMouseUp>
			if button == "RightButton" then
				MyAddon_RestoreHighlight()
				MyAddon_EditContextMenu()
			end;
		</OnMouseUp>
	</Scripts>
</EditBox>

And the Lua:

Code:

function MyAddon_EditBoxCursor(self)
	if MyAddon_MouseButton == "LeftButton" then
		local cursorPos = self:GetCursorPosition();
		
		if (cursorPos ~= MyAddon_CursorPos) then
			MyAddon_CurrentEditBox = self;
			
			local Text = self:GetText();
			self:Insert(""); -- Delete selected text
			
			local TextNew = self:GetText();
			local CursorNew = self:GetCursorPosition();
			
			MyAddon_HighlightStart = CursorNew;
			MyAddon_HighlightEnd = #Text - (#TextNew - CursorNew);
			
			-- Restore previous text
			self:SetText(Text);
			MyAddon_RestoreHighlight();
		end
	end
end


function MyAddon_RestoreHighlight()
	if Zath_CurrentEditBox and Zath_HighlightStart ~= nil then
		MyAddon_CurrentEditBox:SetCursorPosition(MyAddon_CursorPos);
		MyAddon_CurrentEditBox:HighlightText(MyAddon_HighlightStart, MyAddon_HighlightEnd);
	end
end

Edit: Fixed a bug in the RestoreHighlight function so it doesn't incorrectly select the entire text if selection hasn't been stored.