Gerrit: Factor out remote server chooser

Preparing for re-use in Push to Gerrit dialog.

Task-number: QTCREATORBUG-16367
Change-Id: Ic72f72024d6b6b5a525f6855a9947d4c2dc6de48
Reviewed-by: André Hartmann <aha_1980@gmx.de>

src/plugins/git/gerrit/gerritremotechooser.cpp

@@ -0,0 +1,126 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 Orgad Shaneh <orgads@gmail.com>.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "gerritremotechooser.h"
+#include "gerritparameters.h"
+#include "gerritserver.h"
+#include "../gitclient.h"
+#include "../gitplugin.h"
+
+#include <utils/qtcassert.h>
+#include <utils/utilsicons.h>
+
+#include <QFileInfo>
+#include <QHBoxLayout>
+
+Q_DECLARE_METATYPE(Gerrit::Internal::GerritServer);
+
+namespace Gerrit {
+namespace Internal {
+
+GerritRemoteChooser::GerritRemoteChooser(QWidget *parent) :
+    QWidget(parent)
+{
+    auto horizontalLayout = new QHBoxLayout(this);
+    m_remoteComboBox = new QComboBox(this);
+    QSizePolicy sizePolicy1(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
+    sizePolicy1.setHorizontalStretch(0);
+    sizePolicy1.setVerticalStretch(0);
+    sizePolicy1.setHeightForWidth(m_remoteComboBox->sizePolicy().hasHeightForWidth());
+    m_remoteComboBox->setSizePolicy(sizePolicy1);
+    m_remoteComboBox->setMinimumSize(QSize(40, 0));
+
+    horizontalLayout->addWidget(m_remoteComboBox);
+
+    m_resetRemoteButton = new QToolButton(this);
+    m_resetRemoteButton->setToolTip(tr("Refresh Remote Servers"));
+
+    horizontalLayout->addWidget(m_resetRemoteButton);
+
+    connect(m_remoteComboBox, &QComboBox::currentTextChanged,
+            this, &GerritRemoteChooser::handleRemoteChanged);
+    m_resetRemoteButton->setIcon(Utils::Icons::RESET_TOOLBAR.icon());
+    connect(m_resetRemoteButton, &QToolButton::clicked,
+            this, [this] { updateRemotes(true); });
+}
+
+void GerritRemoteChooser::setRepository(const QString &repository)
+{
+    m_repository = repository;
+}
+
+void GerritRemoteChooser::setParameters(QSharedPointer<GerritParameters> parameters)
+{
+    m_parameters = parameters;
+}
+
+bool GerritRemoteChooser::updateRemotes(bool forceReload)
+{
+    QTC_ASSERT(!m_repository.isEmpty(), return false);
+    m_remoteComboBox->clear();
+    m_updatingRemotes = true;
+    QString errorMessage; // Mute errors. We'll just fallback to the defaults
+    QMap<QString, QString> remotesList =
+            Git::Internal::GitPlugin::client()->synchronousRemotesList(m_repository, &errorMessage);
+    QMapIterator<QString, QString> mapIt(remotesList);
+    while (mapIt.hasNext()) {
+        mapIt.next();
+        GerritServer server;
+        if (!server.fillFromRemote(mapIt.value(), *m_parameters, forceReload))
+            continue;
+        addRemote(server, mapIt.key());
+    }
+    addRemote(m_parameters->server, tr("Fallback"));
+    m_updatingRemotes = false;
+    handleRemoteChanged();
+    return true;
+}
+
+void GerritRemoteChooser::addRemote(const GerritServer &server, const QString &name)
+{
+    for (int i = 0, total = m_remoteComboBox->count(); i < total; ++i) {
+        const GerritServer s = m_remoteComboBox->itemData(i).value<GerritServer>();
+        if (s == server)
+            return;
+    }
+    m_remoteComboBox->addItem(server.host + QString(" (%1)").arg(name), QVariant::fromValue(server));
+    if (name == "gerrit")
+        m_remoteComboBox->setCurrentIndex(m_remoteComboBox->count() - 1);
+}
+
+GerritServer GerritRemoteChooser::currentServer() const
+{
+    return m_remoteComboBox->currentData().value<GerritServer>();
+}
+
+void GerritRemoteChooser::handleRemoteChanged()
+{
+    if (m_updatingRemotes || m_remoteComboBox->count() == 0)
+        return;
+    emit remoteChanged();
+}
+
+} // namespace Internal
+} // namespace Gerrit