Override click inside QuickLaunch results list SOLVED

[zarkogajic]

Hi Support,

Is there a way to override what happens / catch / get notified when a click happens for the item in the QuickLaunch list:

image.png

Note: I do not want to custom handle the associated command - I want to know what command was selected/clicked (and stop it from being executed).

I guess that's some IUIX_List and I should be able to use IUIX_ListCallbacks and List_OnItemClick. But not sure from what IUIX_Obj to get to that list? And if I can, how to get the actual command from List_OnItemClick?

-žarko

[Daniel - PDF-XChange]

Hello, zarkogajic

I have passed this along for review by the Dev team, hopefully they can get back to us in a timely manner.

Kind regards,

[zarkogajic]

Hi Dan,

Ping here ...

-žarko

[Vasyl - PDF-XChange]

Hi Zarko.

You may try this way:

Code: Select all

const int id_cmd_quickLaunchList = PXV_Inst.Str2ID("cmd.quickLaunchList");

public void OnEventMonitor(PDFXEdit.IUIX_Obj pTarget, PDFXEdit.IUIX_Event pEvent)
{
	if (pEvent.Code == (int)WM_LBUTTONUP)
	{
		if (pTarget.ID == id_cmd_quickLaunchList)
		{
			IntPtr impl = IntPtr.Zero;
			pTarget.QueryImpl(typeof(IUIX_List).GUID, null, out impl);
			IUIX_List list = (IUIX_List)Marshal.GetObjectForIUnknown(impl);
			if (!IsMyCallback(list.Callbacks))
			{
				list.Callbacks = CreateMyCallback(list.Callbacks);  // it sets my implementation of IUIX_ListCallbacks interface that 
															// mostly redirects all calls to the original callbacks, 
															// BUT overrides the IUIX_ListCallbacks::List_OnItemClicked
			}
		}
	}
}

HTH

[zarkogajic]

Hi Vasyl,

Thanks.

Can I get what item/cmd was clicked with List_OnItemClicked ?

-žarko

[zarkogajic]

Hi Vasyl,

I've tried your code ...

WM_LBUTTONUP is too late as at that moment the item in the list is already clicked and the command gets executed and list hidden/destroyed - so List_OnItemClick does not happen.

I've changed that to use "(pEvent.Code = e_Visible) AND (pEvent.Param1 = 1)" - so inject my callback when the list is made visible. This works and upon clicking an item in the list the List_OnItemClick does happen.

But, as I feared - no real data I can use there to figure out what item (what command) was clicked (except the item position in the list (UIX_ListItemID.nItem). As I remember, for a similar request sometime in the past, the answer was "for internal use, not available to SDK"

So, new questions:

Q1. Is my approach with "(pEvent.Code = e_Visible) AND (pEvent.Param1 = 1)" the best I can use?

Q2. Is there any (never mind how crazy or complex) way to get to the actual item that was clicked - the command ID that was selected/clicked to be executed ? I know the item in that list might not be a command but some kind of "show sub-menu" ...

3. How come the selected command does get executed even if I do not call "Original Callbacks List_OnItemClick"?
I tried to return E_FAIL or E_ABORT from my List_OnItemClick but the selected command still gets executed.
If I return S_FALSE - nothing happens (command does not get executed, list remains visible) - so I guess there is some return code I can use to stop the command from being executed (but list made hidden as if it was executed).

Edit: Ok, if I set "result = s_false" and also do "pList.Obj.Show(0, false)" - selected command does not get executed and the list gets hidden - good enough for me.

So, only Q1 and Q2 open ...

-žarko

[Vasyl - PDF-XChange]

Q1 - yes, this can be used
Q2 - the List_OnGetItemText of the original list.Callbacks can be used to get the display text of the item. Unfortunately, nothing more...

[zarkogajic]

Hi Vasyl,

Thanks.



So, no go.

-žarko

[Daniel - PDF-XChange]

[zarkogajic]

Hi Vasyl,

Q2 - the List_OnGetItemText of the original list.Callbacks can be used to get the display text of the item. Unfortunately, nothing more...

Long shot but I have to ask: could you please (, please ...) expose something there (OnClick) so I can get the underlying item ...

-žarko

[MishaH]

Hello zarkogajic,

Unfortunately, there is no easy way to get the ID of the command that was clicked here. I will try to explain Vasyl's idea of getting the text of an element in more detail.

When processing List_OnItemClick, you get data on which list item was clicked - UIX_ListItemID.nItem, and using this, you call List_OnGetItemText to get the text of that item.
This text will usually contain the name and tip of the command. You should split these values.

Next, you need to get IUIX_CmdManager (https://sdkhelp.pdf-xchange.com/view/PX ... CmdManager), from which you can get IUIX_CmdCollection (https://sdkhelp.pdf-xchange.com/view/PX ... Collection), which contains all the commands. Using the index(https://sdkhelp.pdf-xchange.com/view/PX ... ction_Item), you can get each command (https://sdkhelp.pdf-xchange.com/view/PXV:IUIX_Cmd) and compare it with the data obtained in the first step and its properties ‘Title’ (https://sdkhelp.pdf-xchange.com/view/PXV:IUIX_Cmd_Title) and ‘Tip’ (https://sdkhelp.pdf-xchange.com/view/PXV:IUIX_Cmd_Tip).
It is important to check both values, as some commands may have the same names.
When the required command is found, you can obtain its ID (https://sdkhelp.pdf-xchange.com/view/PXV:IUIX_Cmd_ID)

This is the only solution I can offer. I hope it helps.

Kind regards,
Misha

[zarkogajic]

Hi Misha,

Thanks. Yes, that's the approach I use - a bit cumbersome - that's why I asked to consider exposing some internal stuff

-žarko