Prevent escape from "closing" a dialog, introducing a blank window.

src/qt/assetsdialog.cpp

@@ -33,6 +33,7 @@
 #include <QApplication>
 #include <QDesktopWidget>
 #include <QScreen>
+#include <QKeyEvent>
 
 template<typename T>
 class CAssetListWidgetItem : public QTableWidgetItem {
@@ -114,6 +115,14 @@ void AssetsDialog::setModel(WalletModel *model) {
     balanceChanged = true;
 }
 
+void AssetsDialog::keyPressEvent(QKeyEvent* evt)
+{
+    // Escape hides the dialog, which leaves us with an empty window
+    if (evt->key() == Qt::Key_Escape)
+        return;
+    QDialog::keyPressEvent(evt);
+}
+
 void AssetsDialog::showContextMenuAsset(const QPoint &point) {
     QTableWidgetItem *item = ui->tableWidgetAssets->itemAt(point);
     if (item) contextMenuAsset->exec(QCursor::pos());

src/qt/assetsdialog.h

@@ -56,6 +56,9 @@ class AssetsDialog : public QDialog {
 
     void assetUpdateClicked(const std::string &assetName);
 
+protected:
+   void keyPressEvent(QKeyEvent *e) override;
+
 private:
     QMenu *contextMenuAsset;
     QImage currentRefImage;

src/qt/createassetsdialog.cpp

@@ -280,6 +280,14 @@ static QString GetDistributionType(int t) {
     return "invalid";
 }
 
+void CreateAssetsDialog::keyPressEvent(QKeyEvent* evt)
+{
+    // Escape hides the dialog, which leaves us with an empty window
+    if (evt->key() == Qt::Key_Escape)
+        return;
+    QDialog::keyPressEvent(evt);
+}
+
 void CreateAssetsDialog::on_createAssetButton_clicked() {
     if (!model || !model->getOptionsModel() || !validateInputs())
         return;

src/qt/createassetsdialog.h

@@ -59,6 +59,9 @@ public
     const uint256 &txid
     );
 
+protected:
+   void keyPressEvent(QKeyEvent *e) override;
+
 private:
     Ui::CreateAssetsDialog *ui;
     ClientModel *clientModel;

src/qt/updateassetsdialog.cpp

@@ -278,7 +278,7 @@ void UpdateAssetsDialog::updateAsset() {
         msgBox.setText(QString::fromStdString("Error: This asset cannot be updated"));
         msgBox.setStandardButtons(QMessageBox::Ok);
         msgBox.exec();
-        return;  
+        return;
     }
 
     //check on mempool if have a mint/update tx for this asset
@@ -319,17 +319,17 @@ void UpdateAssetsDialog::updateAsset() {
             assetTx.amount = ui->quantitySpinBox->value() * COIN;
         else
             assetTx.amount = assetData.amount;
-        
+
         //maxMintCount need to be equal to or greater than current mintCount
         if (ui->quantitySpinBox->value() >= assetData.mintCount)
             assetTx.maxMintCount = ui->maxmintSpinBox->value();
         else
             assetTx.maxMintCount = assetData.maxMintCount;
-        
+
         if (ui->IssueFrequencyBox->value() > 0)
             assetTx.issueFrequency = ui->IssueFrequencyBox->value();
         else
-            assetTx.issueFrequency = assetData.issueFrequency; 
+            assetTx.issueFrequency = assetData.issueFrequency;
 
         assetTx.updatable = ui->updatableBox->isChecked();
 
@@ -381,37 +381,37 @@ void UpdateAssetsDialog::updateAsset() {
         msgBox.exec();
         return;
     }
-    
+
     m_coin_control->destChange = CNoDestination();
     m_coin_control->UnSelectAll();
 
-    QString questionString = tr("Updating asset: %1<br>").arg(QString::fromStdString(assetData.name)); 
+    QString questionString = tr("Updating asset: %1<br>").arg(QString::fromStdString(assetData.name));
     questionString.append("<hr />");
     if (assetTx.ownerAddress != assetData.ownerAddress) {
         questionString.append(tr("transfer ownership from: %1 <br>").arg(QString::fromStdString(EncodeDestination(assetData.ownerAddress))));
         questionString.append(tr("To: %1 <hr />").arg(QString::fromStdString(EncodeDestination(assetTx.ownerAddress))));
     } else {
         if (assetTx.updatable != assetData.updatable)
             questionString.append(tr("Updatable: %1 <br>").arg(assetTx.updatable ? "true": "false"));
-        
+
         if (assetTx.referenceHash != assetData.referenceHash)
             questionString.append(tr("ReferenceHash: %1 <br>").arg(QString::fromStdString(assetTx.referenceHash)));
-        
+
         if (assetTx.targetAddress != assetData.targetAddress)
             questionString.append(tr("Target: %1 <br>").arg(QString::fromStdString(EncodeDestination(assetTx.targetAddress))));
 
         if (assetTx.type != assetData.type)
             questionString.append(tr("Distribution Type: %1 <br>").arg(GetDistributionType(assetTx.type)));
-        
+
         if (assetTx.amount != assetData.amount)
             questionString.append(tr("Amount: %1 <br>").arg(QString::number(assetTx.amount / COIN)));
-        
+
         if (assetTx.maxMintCount != assetData.maxMintCount)
             questionString.append(tr("MaxMintCount: %1 <br>").arg(QString::number(assetTx.maxMintCount)));
 
         if (assetTx.issueFrequency != assetData.issueFrequency)
             questionString.append(tr("IssueFrequency: %1 <br>").arg(QString::number(assetTx.issueFrequency)));
-        
+
     }
     // Display message box
     nFee += assetTx.fee * COIN;
@@ -452,7 +452,7 @@ bool UpdateAssetsDialog::validateInputs() {
         ui->targetaddressText->setValid(false);
         retval = false;
     }
-    
+
     if (ui->maxmintSpinBox->value() < 0 || ui->maxmintSpinBox->value() > 65535){
         ui->maxmintSpinBox->setStyleSheet(GUIUtil::getThemedStyleQString(GUIUtil::ThemedStyle::TS_INVALID));
         retval = false;
@@ -476,7 +476,7 @@ void UpdateAssetsDialog::clear() {
     ui->maxmintSpinBox->setValue(1);
     ui->IssueFrequencyBox->setValue(0);
     ui->updatableBox->setChecked(false);
-    
+
     updateTabsAndLabels();
 }
 
@@ -651,6 +651,14 @@ void UpdateAssetsDialog::updateAssetList() {
     }
 }
 
+void UpdateAssetsDialog::keyPressEvent(QKeyEvent* evt)
+{
+    // Escape hides the dialog, which leaves us with an empty window
+    if (evt->key() == Qt::Key_Escape)
+        return;
+    QDialog::keyPressEvent(evt);
+}
+
 void UpdateAssetsDialog::focusAsset(const std::string assetId) {
     int index = ui->assetList->findText(QString::fromStdString(assetId));
     if (index >= 0) {

src/qt/updateassetsdialog.h

@@ -56,6 +56,9 @@ class UpdateAssetsDialog : public QDialog {
     QCompleter *completer;
     QString prevName = "";
 
+protected:
+   void keyPressEvent(QKeyEvent *e) override;
+
 public
     Q_SLOTS:
     void clear();