Add workaround for iOS+Qt bug

launcher/startGame/StartGameTab.cpp

@@ -19,6 +19,7 @@
 
 #include "../../lib/filesystem/Filesystem.h"
 #include "../../lib/VCMIDirs.h"
+#include "../../vcmiqt/MessageBox.h"
 
 void StartGameTab::changeEvent(QEvent *event)
 {
@@ -269,7 +270,7 @@ void StartGameTab::on_buttonHelpImportFiles_clicked()
 		" - VCMI configuration files (.json)\n"
 	);
 
-	QMessageBox::information(this, ui->buttonImportFiles->text(), message);
+	MessageBox::information(this, ui->buttonImportFiles->text(), message);
 }
 
 void StartGameTab::on_buttonInstallTranslationHelp_clicked()
@@ -279,7 +280,7 @@ void StartGameTab::on_buttonInstallTranslationHelp_clicked()
 		"VCMI provides translations of the game into various languages that you can use. "
 		"Use this option to automatically install such translation to your language."
 	);
-	QMessageBox::information(this, ui->buttonInstallTranslation->text(), message);
+	MessageBox::information(this, ui->buttonInstallTranslation->text(), message);
 }
 
 void StartGameTab::on_buttonActivateTranslationHelp_clicked()
@@ -289,7 +290,7 @@ void StartGameTab::on_buttonActivateTranslationHelp_clicked()
 		"Use this option to enable it."
 	);
 
-	QMessageBox::information(this, ui->buttonActivateTranslation->text(), message);
+	MessageBox::information(this, ui->buttonActivateTranslation->text(), message);
 }
 
 void StartGameTab::on_buttonUpdateModsHelp_clicked()
@@ -301,7 +302,7 @@ void StartGameTab::on_buttonUpdateModsHelp_clicked()
 		"You many want to postpone mod update until you finish any of your ongoing games."
 		);
 
-	QMessageBox::information(this, ui->buttonUpdateMods->text(), message);
+	MessageBox::information(this, ui->buttonUpdateMods->text(), message);
 }
 
 void StartGameTab::on_buttonChroniclesHelp_clicked()
@@ -314,7 +315,7 @@ void StartGameTab::on_buttonChroniclesHelp_clicked()
 		"This will generate and install mod for VCMI that contains imported chronicles"
 	);
 
-	QMessageBox::information(this, ui->labelChronicles->text(), message);
+	MessageBox::information(this, ui->labelChronicles->text(), message);
 }
 
 void StartGameTab::on_buttonMissingSoundtrackHelp_clicked()
@@ -325,7 +326,7 @@ void StartGameTab::on_buttonMissingSoundtrackHelp_clicked()
 		"To resolve this problem, please copy missing mp3 files from Heroes III to VCMI data files directory manually "
 		"or reinstall VCMI and re-import Heroes III data files"
 	);
-	QMessageBox::information(this, ui->labelMissingSoundtrack->text(), message);
+	MessageBox::information(this, ui->labelMissingSoundtrack->text(), message);
 }
 
 void StartGameTab::on_buttonMissingVideoHelp_clicked()
@@ -336,7 +337,7 @@ void StartGameTab::on_buttonMissingVideoHelp_clicked()
 		"To resolve this problem, please copy VIDEO.VID file from Heroes III to VCMI data files directory manually "
 		"or reinstall VCMI and re-import Heroes III data files"
 		);
-	QMessageBox::information(this, ui->labelMissingVideo->text(), message);
+	MessageBox::information(this, ui->labelMissingVideo->text(), message);
 }
 
 void StartGameTab::on_buttonMissingFilesHelp_clicked()
@@ -347,7 +348,7 @@ void StartGameTab::on_buttonMissingFilesHelp_clicked()
 		"To resolve this problem, please reinstall game and reimport data files using supported version of Heroes III. "
 		"VCMI requires Heroes III: Shadow of Death or Complete Edition to run, which you can get (for example) from gog.com"
 	);
-	QMessageBox::information(this, ui->labelMissingFiles->text(), message);
+	MessageBox::information(this, ui->labelMissingFiles->text(), message);
 }
 
 void StartGameTab::on_buttonMissingCampaignsHelp_clicked()
@@ -358,7 +359,7 @@ void StartGameTab::on_buttonMissingCampaignsHelp_clicked()
 		"To resolve this problem, please copy missing data files from Heroes III to VCMI data files directory manually "
 		"or reinstall VCMI and re-import Heroes III data files"
 	);
-	QMessageBox::information(this, ui->labelMissingCampaigns->text(), message);
+	MessageBox::information(this, ui->labelMissingCampaigns->text(), message);
 }
 
 void StartGameTab::on_buttonPresetExport_clicked()
@@ -373,21 +374,24 @@ void StartGameTab::on_buttonPresetImport_clicked()
 
 void StartGameTab::on_buttonPresetNew_clicked()
 {
-	bool ok;
-	QString presetName = QInputDialog::getText(
-		this,
-		ui->buttonPresetNew->text(),
-		tr("Enter preset name:"),
-		QLineEdit::Normal,
-		QString(),
-		&ok);
-
-	if (ok && !presetName.isEmpty())
-	{
-		getMainWindow()->getModView()->createNewPreset(presetName);
-		getMainWindow()->getModView()->activatePreset(presetName);
-		refreshPresets();
-	}
+	const auto & functor = [this](){
+		bool ok;
+		QString presetName = QInputDialog::getText(
+			this,
+			ui->buttonPresetNew->text(),
+			tr("Enter preset name:"),
+			QLineEdit::Normal,
+			QString(),
+			&ok);
+
+		if (ok && !presetName.isEmpty())
+		{
+			getMainWindow()->getModView()->createNewPreset(presetName);
+			getMainWindow()->getModView()->activatePreset(presetName);
+			refreshPresets();
+		}
+	};
+	MessageBox::showDialog(functor);
 }
 
 void StartGameTab::on_buttonPresetDelete_clicked()
@@ -411,21 +415,23 @@ void StartGameTab::on_comboBoxModPresets_currentTextChanged(const QString &prese
 
 void StartGameTab::on_buttonPresetRename_clicked()
 {
-	QString currentName = getMainWindow()->getModView()->getActivePreset();
+	const auto & functor = [this](){
+		QString currentName = getMainWindow()->getModView()->getActivePreset();
 
-	bool ok;
-	QString newName = QInputDialog::getText(
-		this,
-		ui->buttonPresetNew->text(),
-		tr("Rename preset '%1' to:").arg(currentName),
-		QLineEdit::Normal,
-		currentName,
-		&ok);
+		bool ok;
+		QString newName = QInputDialog::getText(
+			this,
+			ui->buttonPresetNew->text(),
+			tr("Rename preset '%1' to:").arg(currentName),
+			QLineEdit::Normal,
+			currentName,
+			&ok);
 
-	if (ok && !newName.isEmpty())
-	{
-		getMainWindow()->getModView()->renamePreset(currentName, newName);
-		refreshPresets();
-	}
+		if (ok && !newName.isEmpty())
+		{
+			getMainWindow()->getModView()->renamePreset(currentName, newName);
+			refreshPresets();
+		}
+	};
+	MessageBox::showDialog(functor);
 }
-

vcmiqt/CMakeLists.txt

@@ -8,6 +8,7 @@ set(vcmiqt_SRCS
 set(vcmiqt_HEADERS
 		StdInc.h
 
+		MessageBox.h
 		jsonutils.h
 		launcherdirs.h
 		convpathqstring.h
@@ -32,7 +33,7 @@ if(WIN32)
 	)
 endif()
 
-target_link_libraries(vcmiqt vcmi Qt${QT_VERSION_MAJOR}::Core)
+target_link_libraries(vcmiqt vcmi Qt${QT_VERSION_MAJOR}::Core Qt${QT_VERSION_MAJOR}::Widgets)
 
 target_include_directories(vcmiqt PUBLIC
 	${CMAKE_CURRENT_SOURCE_DIR}

vcmiqt/MessageBox.h

@@ -0,0 +1,50 @@
+/*
+ * MessageBox.h, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+
+#pragma once
+
+#include "vcmiqt.h"
+
+#include <QMessageBox>
+#include <QTimer>
+
+namespace MessageBox
+{
+#ifdef VCMI_IOS
+	// iOS can't display modal dialogs when called directly on button press
+	// https://bugreports.qt.io/browse/QTBUG-98651
+
+	template<typename Functor>
+	void showDialog(const Functor & f)
+	{
+		QTimer::singleShot(0, this, f);
+	}
+
+	void information(QWidget *parent, const QString &title, const QString& text, QMessageBox::StandardButtons buttons = QMessageBox::Ok, QMessageBox::StandardButton defaultButton = QMessageBox::NoButton)
+	{
+		QTimer::singleShot(0, this, [=](){
+			QMessageBox::information(parent, title, text, buttons, defaultButton);
+		});
+	}
+
+#else
+
+	template<typename Functor>
+	void showDialog(const Functor & f)
+	{
+		f();
+	}
+
+	void information(QWidget *parent, const QString &title, const QString& text, QMessageBox::StandardButtons buttons = QMessageBox::Ok, QMessageBox::StandardButton defaultButton = QMessageBox::NoButton)
+	{
+		QMessageBox::information(parent, title, text, buttons, defaultButton);
+	}
+#endif
+}