Implemented DolphinTabPage class to encapsulate the split view handling from DolphinMainWindow.

The signal activeViewUrlChanged in DolphinTabPage is currently unused, but we need it later when
we implement the tab widget and tab bar.

DolphinTabPage has saveState/restoreState which are using a QByteArray instead of the KConfigGroup to
be more generic.

REVIEW: 118964

1 files changed, 258 insertions, 0 deletions

diff --git a/src/dolphintabpage.cpp b/src/dolphintabpage.cpp
new file mode 100644
index 000000000..c8e426335
--- /dev/null
+++ b/src/dolphintabpage.cpp
@@ -0,0 +1,258 @@
+/***************************************************************************
+ * Copyright (C) 2014 by Emmanuel Pescosta <[email protected]> *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
+ ***************************************************************************/
+
+#include "dolphintabpage.h"
+
+#include "dolphinviewcontainer.h"
+#include "dolphin_generalsettings.h"
+
+#include <QSplitter>
+
+DolphinTabPage::DolphinTabPage(const KUrl& primaryUrl, const KUrl& secondaryUrl, QWidget* parent) :
+    QWidget(parent),
+    m_primaryViewActive(true),
+    m_splitViewEnabled(false)
+{
+    QVBoxLayout* layout = new QVBoxLayout(this);
+    layout->setSpacing(0);
+    layout->setMargin(0);
+
+    m_splitter = new QSplitter(Qt::Horizontal, this);
+    m_splitter->setChildrenCollapsible(false);
+    layout->addWidget(m_splitter);
+
+    // Create a new primary view
+    m_primaryViewContainer = createViewContainer(primaryUrl);
+    connect(m_primaryViewContainer->view(), SIGNAL(urlChanged(KUrl)),
+            this, SIGNAL(activeViewUrlChanged(KUrl)));
+
+    m_splitter->addWidget(m_primaryViewContainer);
+    m_primaryViewContainer->show();
+
+    if (secondaryUrl.isValid() || GeneralSettings::splitView()) {
+        // Provide a secondary view, if the given secondary url is valid or if the
+        // startup settings are set this way (use the url of the primary view).
+        m_splitViewEnabled = true;
+        const KUrl& url = secondaryUrl.isValid() ? secondaryUrl : primaryUrl;
+        m_secondaryViewContainer = createViewContainer(url);
+        m_splitter->addWidget(m_secondaryViewContainer);
+        m_secondaryViewContainer->show();
+    }
+
+    m_primaryViewContainer->setActive(true);
+}
+
+bool DolphinTabPage::primaryViewActive() const
+{
+    return m_primaryViewActive;
+}
+
+bool DolphinTabPage::splitViewEnabled() const
+{
+    return m_splitViewEnabled;
+}
+
+void DolphinTabPage::setSplitViewEnabled(bool enabled)
+{
+    if (m_splitViewEnabled != enabled) {
+        m_splitViewEnabled = enabled;
+
+        if (enabled) {
+            const KUrl& url = m_primaryViewContainer->url();
+            m_secondaryViewContainer = createViewContainer(url);
+            m_splitter->addWidget(m_secondaryViewContainer);
+            m_secondaryViewContainer->show();
+            m_secondaryViewContainer->setActive(true);
+        } else {
+            // Close the view which is active.
+            DolphinViewContainer* view = activeViewContainer();
+            if (m_primaryViewActive) {
+                // If the primary view is active, we have to swap the pointers
+                // because the secondary view will be the new primary view.
+                qSwap(m_primaryViewContainer, m_secondaryViewContainer);
+            }
+            m_primaryViewContainer->setActive(true);
+            view->close();
+            view->deleteLater();
+        }
+    }
+}
+
+DolphinViewContainer* DolphinTabPage::primaryViewContainer() const
+{
+    return m_primaryViewContainer;
+}
+
+DolphinViewContainer* DolphinTabPage::secondaryViewContainer() const
+{
+    return m_secondaryViewContainer;
+}
+
+DolphinViewContainer* DolphinTabPage::activeViewContainer() const
+{
+    return m_primaryViewActive ? m_primaryViewContainer :
+                                 m_secondaryViewContainer;
+}
+
+KFileItemList DolphinTabPage::selectedItems() const
+{
+    KFileItemList items = m_primaryViewContainer->view()->selectedItems();
+    if (m_splitViewEnabled) {
+        items += m_secondaryViewContainer->view()->selectedItems();
+    }
+    return items;
+}
+
+int DolphinTabPage::selectedItemsCount() const
+{
+    int selectedItemsCount = m_primaryViewContainer->view()->selectedItemsCount();
+    if (m_splitViewEnabled) {
+        selectedItemsCount += m_secondaryViewContainer->view()->selectedItemsCount();
+    }
+    return selectedItemsCount;
+}
+
+void DolphinTabPage::markUrlsAsSelected(const QList<KUrl>& urls)
+{
+    m_primaryViewContainer->view()->markUrlsAsSelected(urls);
+    if (m_splitViewEnabled) {
+        m_secondaryViewContainer->view()->markUrlsAsSelected(urls);
+    }
+}
+
+void DolphinTabPage::markUrlAsCurrent(const KUrl& url)
+{
+    m_primaryViewContainer->view()->markUrlAsCurrent(url);
+    if (m_splitViewEnabled) {
+        m_secondaryViewContainer->view()->markUrlAsCurrent(url);
+    }
+}
+
+void DolphinTabPage::setPlacesSelectorVisible(bool visible)
+{
+    m_primaryViewContainer->urlNavigator()->setPlacesSelectorVisible(visible);
+    if (m_splitViewEnabled) {
+        m_secondaryViewContainer->urlNavigator()->setPlacesSelectorVisible(visible);
+    }
+}
+
+void DolphinTabPage::refreshViews()
+{
+    m_primaryViewContainer->readSettings();
+    if (m_splitViewEnabled) {
+        m_secondaryViewContainer->readSettings();
+    }
+}
+
+QByteArray DolphinTabPage::saveState() const
+{
+    QByteArray state;
+    QDataStream stream(&state, QIODevice::WriteOnly);
+
+    stream << m_splitViewEnabled;
+
+    stream << m_primaryViewContainer->url();
+    stream << m_primaryViewContainer->urlNavigator()->isUrlEditable();
+
+    if (m_splitViewEnabled) {
+        stream << m_secondaryViewContainer->url();
+        stream << m_secondaryViewContainer->urlNavigator()->isUrlEditable();
+    }
+
+    stream << m_primaryViewActive;
+    stream << m_splitter->saveState();
+
+    return state;
+}
+
+void DolphinTabPage::restoreState(const QByteArray& state)
+{
+    QByteArray sd = state;
+    QDataStream stream(&sd, QIODevice::ReadOnly);
+
+    bool isSplitViewEnabled = false;
+    stream >> isSplitViewEnabled;
+    setSplitViewEnabled(isSplitViewEnabled);
+
+    KUrl primaryUrl;
+    stream >> primaryUrl;
+    m_primaryViewContainer->setUrl(primaryUrl);
+    bool primaryUrlEditable;
+    stream >> primaryUrlEditable;
+    m_primaryViewContainer->urlNavigator()->setUrlEditable(primaryUrlEditable);
+
+    if (isSplitViewEnabled) {
+        KUrl secondaryUrl;
+        stream >> secondaryUrl;
+        m_secondaryViewContainer->setUrl(secondaryUrl);
+        bool secondaryUrlEditable;
+        stream >> secondaryUrlEditable;
+        m_secondaryViewContainer->urlNavigator()->setUrlEditable(secondaryUrlEditable);
+    }
+
+    stream >> m_primaryViewActive;
+    if (m_primaryViewActive) {
+        m_primaryViewContainer->setActive(true);
+    } else {
+        Q_ASSERT(m_splitViewEnabled);
+        m_secondaryViewContainer->setActive(true);
+    }
+
+    QByteArray splitterState;
+    stream >> splitterState;
+    m_splitter->restoreState(splitterState);
+}
+
+void DolphinTabPage::slotViewActivated()
+{
+    const DolphinView* oldActiveView = activeViewContainer()->view();
+
+    // Set the view, which was active before, to inactive
+    // and update the active view type.
+    if (m_splitViewEnabled) {
+        activeViewContainer()->setActive(false);
+        m_primaryViewActive = !m_primaryViewActive;
+    } else {
+        m_primaryViewActive = true;
+    }
+
+    const DolphinView* newActiveView = activeViewContainer()->view();
+
+    if (newActiveView != oldActiveView) {
+        disconnect(oldActiveView, SIGNAL(urlChanged(KUrl)),
+                   this, SIGNAL(activeViewUrlChanged(KUrl)));
+        connect(newActiveView, SIGNAL(urlChanged(KUrl)),
+                this, SIGNAL(activeViewUrlChanged(KUrl)));
+    }
+
+    emit activeViewUrlChanged(activeViewContainer()->url());
+    emit activeViewChanged();
+}
+
+DolphinViewContainer* DolphinTabPage::createViewContainer(const KUrl& url) const
+{
+    DolphinViewContainer* container = new DolphinViewContainer(url, m_splitter);
+    container->setActive(false);
+
+    const DolphinView* view = container->view();
+    connect(view, SIGNAL(activated()),
+            this, SLOT(slotViewActivated()));
+
+    return container;
+}