Merge #15153: gui: Add Open Wallet menu

1951ea434 gui: Show indeterminate progress dialog while opening walllet (João Barbosa)
8847cdaaa gui: Add OpenWalletActivity (João Barbosa)
4c8982a88 interfaces: Avoid interface instance if wallet is null (João Barbosa)
be82dea23 gui: Add thread to run background activity in WalletController (João Barbosa)
6c49a55b4 gui: Add Open Wallet menu (João Barbosa)
32a8c6abf gui: Add openWallet and getWalletsAvailableToOpen to WalletController (João Barbosa)
ab288b4e5 interfaces: Add loadWallet to Node (João Barbosa)
17abc0fd5 wallet: Factor out LoadWallet (João Barbosa)

Pull request description:

  The *Open Wallet* menu has all the available wallets currently not loaded. The list of the available wallets comes from `listWalletDir`.

  In the future the menu can be replaced by a custom dialog.

  <img width="674" alt="screenshot 2019-01-12 at 12 17 02" src="https://user-images.githubusercontent.com/3534524/51073166-ac041480-1664-11e9-8302-be81702bc146.png">

Tree-SHA512: ebfd75eee0c8264863748899843afab67dadb7dff21313c11e3cb5b6108d954978dd1f1ae786bc07580c5a771ea4ab38d18c1643c9b9b3683ed53f0f6c582e38

1 files changed, 37 insertions, 0 deletions

diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp
index ba7e8c7daf..f7a4bad916 100644
--- a/src/qt/bitcoingui.cpp
+++ b/src/qt/bitcoingui.cpp
@@ -334,6 +334,10 @@ void BitcoinGUI::createActions()
     openAction = new QAction(platformStyle->TextColorIcon(":/icons/open"), tr("Open &URI..."), this);
     openAction->setStatusTip(tr("Open a bitcoin: URI or payment request"));
 
+    m_open_wallet_action = new QAction(tr("Open Wallet"), this);
+    m_open_wallet_action->setMenu(new QMenu(this));
+    m_open_wallet_action->setStatusTip(tr("Open a wallet"));
+
     showHelpMessageAction = new QAction(platformStyle->TextColorIcon(":/icons/info"), tr("&Command-line options"), this);
     showHelpMessageAction->setMenuRole(QAction::NoRole);
     showHelpMessageAction->setStatusTip(tr("Show the %1 help message to get a list with possible Bitcoin command-line options").arg(tr(PACKAGE_NAME)));
@@ -361,6 +365,37 @@ void BitcoinGUI::createActions()
         connect(usedSendingAddressesAction, &QAction::triggered, walletFrame, &WalletFrame::usedSendingAddresses);
         connect(usedReceivingAddressesAction, &QAction::triggered, walletFrame, &WalletFrame::usedReceivingAddresses);
         connect(openAction, &QAction::triggered, this, &BitcoinGUI::openClicked);
+        connect(m_open_wallet_action->menu(), &QMenu::aboutToShow, [this] {
+            m_open_wallet_action->menu()->clear();
+            for (std::string path : m_wallet_controller->getWalletsAvailableToOpen()) {
+                QString name = path.empty() ? QString("["+tr("default wallet")+"]") : QString::fromStdString(path);
+                QAction* action = m_open_wallet_action->menu()->addAction(name);
+                connect(action, &QAction::triggered, [this, name, path] {
+                    OpenWalletActivity* activity = m_wallet_controller->openWallet(path);
+
+                    QProgressDialog* dialog = new QProgressDialog(this);
+                    dialog->setLabelText(tr("Opening Wallet <b>%1</b>...").arg(name.toHtmlEscaped()));
+                    dialog->setRange(0, 0);
+                    dialog->setCancelButton(nullptr);
+                    dialog->setWindowModality(Qt::ApplicationModal);
+                    dialog->show();
+
+                    connect(activity, &OpenWalletActivity::message, this, [this] (QMessageBox::Icon icon, QString text) {
+                        QMessageBox box;
+                        box.setIcon(icon);
+                        box.setText(tr("Open Wallet Failed"));
+                        box.setInformativeText(text);
+                        box.setStandardButtons(QMessageBox::Ok);
+                        box.setDefaultButton(QMessageBox::Ok);
+                        connect(this, &QObject::destroyed, &box, &QDialog::accept);
+                        box.exec();
+                    });
+                    connect(activity, &OpenWalletActivity::opened, this, &BitcoinGUI::setCurrentWallet);
+                    connect(activity, &OpenWalletActivity::finished, activity, &QObject::deleteLater);
+                    connect(activity, &OpenWalletActivity::finished, dialog, &QObject::deleteLater);
+                });
+            }
+        });
     }
 #endif // ENABLE_WALLET
 
@@ -382,6 +417,8 @@ void BitcoinGUI::createMenuBar()
     QMenu *file = appMenuBar->addMenu(tr("&File"));
     if(walletFrame)
     {
+        file->addAction(m_open_wallet_action);
+        file->addSeparator();
         file->addAction(openAction);
         file->addAction(backupWalletAction);
         file->addAction(signMessageAction);