Bugfix - don't allow multiple dialogs for same tx in TransactionView

[pablomartin4btc]

Limit to one the transaction details dialogs that a user can open.

Currently a user can open unlimited tx details dialogs for the same tx id.

This PR fixes the issue.

[DrahtBot]

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Type	Reviewers
Concept ACK	hebasto
Stale ACK	BrandonOdiwuor, alfonsoromanz

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[DrahtBot]

🚧 At least one of the CI tasks failed. Make sure to run all tests locally, according to the documentation.

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_{Debug: https://github.com/bitcoin-core/gui/runs/23737775174}

[flack]

would be nice if a click on a row where the dialog is already open would bring that dialog to the foreground

[pablomartin4btc]

would be nice if a click on a row where the dialog is already open would bring that dialog to the foreground

Great suggestion! I'll try that since I have to fix a lint. Thanks!

[pablomartin4btc]

Updates:

• Fixed lint failure.
• Bring an already open dialog to the foreground as @flack suggested.

[luke-jr]

Why?

[pablomartin4btc]

Why?

Discussed a bit offline... Please feel free to add more context here and any concerns you have.

[pablomartin4btc]

Updates:

• added the call to raise() as @alfonsoromanz suggested finding that the fix wasn't working properly on Mac without it, this is not causing any other effects on Linux or Windows which I both tested.
• added includes of QString in both src/qt/transactiondescdialog.h and src/qt/transactionview.cpp, without them bitcoin-qt was crashing on Windows on the tx id hash string comparison (note: bitcoin-qt was cross-compiled for Windows with WSL Ubuntu 24.04 beta; it would be good to double check on native Windows compilation with VS 2022)

[hebasto]

Currently a user can open unlimited tx details dialogs for the same tx id.

Concept ACK. Such a behavior can confuse the user.

[hebasto]

Tested successfully on Ubuntu 22.04.4 LTS. Only one dialogue is created per transaction and the clicked transaction is brought to the foreground

Tested on Ubuntu 24.04. It works with QT_QPA_PLATFORM=xcb, but fails with QT_QPA_PLATFORM=wayland.

[pablomartin4btc]

Tested on Ubuntu 24.04. It works with QT_QPA_PLATFORM=xcb, but fails with QT_QPA_PLATFORM=wayland.

I'll take a look, thanks!

[pablomartin4btc]

@hebasto it seems there are some issues with Wayland on how these actions are being handled (this one specific to KDE but found some old ones in gnome).

As a workaround (tried other things as well), might be not elegant, but this works fine on both X11/Xorg and Wayland:

--- a/src/qt/transactionview.cpp
+++ b/src/qt/transactionview.cpp
@@ -671,8 +671,11 @@ bool TransactionView::detailsAlreadyShown(const QModelIndex &idx)
 {
     for (TransactionDescDialog* dlg : m_opened_dialogs) {
         if (dlg->getTransactionId() == idx.data(TransactionTableModel::TxHashRole).toString()) {
-            dlg->activateWindow();
-            dlg->raise();
+            auto eFlags = dlg->windowFlags();
+            dlg->setWindowFlags(eFlags|Qt::WindowStaysOnTopHint);
+            dlg->show();
+            dlg->setWindowFlags(eFlags);
+            dlg->show();
             return true;
         }
     }

I can update the code with that snippet above or we can do it on a follow-up.

[hebasto]

@hebasto it seems there are some issues with Wayland on how these actions are being handled (this one specific to KDE but found some old ones in gnome).

As a workaround (tried other things as well), might be not elegant, but this works fine on both X11/Xorg and Wayland:

The approach you suggested works for me.

Here are other references to this workaround:

• https://stackoverflow.com/questions/6087887/bring-window-to-front-raise-show-activatewindow-don-t-work/10808934
• https://forum.qt.io/topic/6032/bring-window-to-front-raise-show-activatewindow-don-t-work-on-windows

I can update the code with that snippet above or we can do it on a follow-up.

I think we should first fix our GUIUtil::bringToFront() first in a separate PR, which will also address similar issues in other cases.

Then we can apply the fixed GUIUtil::bringToFront() in this PR.

[pablomartin4btc]

I think we should first fix our GUIUtil::bringToFront() first in a separate PR, which will also address similar issues in other cases.

Then we can apply the fixed GUIUtil::bringToFront() in this PR.

Ok, I'll open a new PR for GUIUtil::bringToFront() and will put this one on draft in the meantime.

[pablomartin4btc]

Updates:

• No functional changes:
  • Using GUIUtil::bringToFront() that was recently fixed (and merged) for Wayland;
  • Removed unnecessary extra line in (src/qt/transactiondescdialog.h).