lxqt-panel-0.10.0-autohide.patch

Patch for autohide issue https://github.com/lxde/lxqt/issues/871
taken from https://github.com/lxde/lxqt-panel/pull/275

diff --git panel/CMakeLists.txt panel/CMakeLists.txt
index 4e23b53..a7f8176 100644
--- panel/CMakeLists.txt
+++ panel/CMakeLists.txt
@@ -2,6 +2,7 @@ set(PROJECT lxqt-panel)
 
 set(PRIV_HEADERS
     panelpluginsmodel.h
+    windownotifier.h
     lxqtpanel.h
     lxqtpanelapplication.h
     lxqtpanellayout.h
@@ -26,6 +27,7 @@ set(PUB_HEADERS
 set(SOURCES
     main.cpp
     panelpluginsmodel.cpp
+    windownotifier.cpp
     lxqtpanel.cpp
     lxqtpanelapplication.cpp
     lxqtpanellayout.cpp
diff --git panel/ilxqtpanel.h panel/ilxqtpanel.h
index e7b2844..71e4990 100644
--- panel/ilxqtpanel.h
+++ panel/ilxqtpanel.h
@@ -32,6 +32,7 @@
 #include "lxqtpanelglobals.h"
 
 class ILXQtPanelPlugin;
+class QWidget;
 
 /**
  **/
@@ -74,6 +75,17 @@ public:
      **/
     virtual QRect calculatePopupWindowPos(const QPoint &absolutePos, const QSize &windowSize) const = 0;
     virtual QRect calculatePopupWindowPos(const ILXQtPanelPlugin *plugin, const QSize &windowSize) const = 0;
+
+    /*!
+     * \brief By calling this function plugin (or any other object) notifies the panel
+     * about showing a (standalone) window/menu -> panel needs this to avoid "hiding" in case any
+     * standalone window is shown. The widget must be shown later than this notification call because
+     * panel need to observe it's show/hide/close events.
+     *
+     * \param w the shown window
+     *
+     */
+    virtual void willShowWindow(QWidget * w) = 0;
 };
 
 #endif // ILXQTPANEL_H
diff --git panel/ilxqtpanelplugin.h panel/ilxqtpanelplugin.h
index 1503923..3a09def 100644
--- panel/ilxqtpanelplugin.h
+++ panel/ilxqtpanelplugin.h
@@ -186,6 +186,16 @@ public:
         return mPanel->calculatePopupWindowPos(this, windowSize);
     }
 
+    /*!
+     * \brief By calling this function plugin notifies the panel about showing a (standalone) window/menu.
+     *
+     * \param w the shown window
+     *
+     */
+    inline void willShowWindow(QWidget * w)
+    {
+        mPanel->willShowWindow(w);
+    }
 
     virtual bool isSeparate() const { return false;  }
     virtual bool isExpandable() const { return false; }
diff --git panel/lxqtpanel.cpp panel/lxqtpanel.cpp
index 5159c15..d6b70ca 100644
--- panel/lxqtpanel.cpp
+++ panel/lxqtpanel.cpp
@@ -35,6 +35,7 @@
 #include "popupmenu.h"
 #include "plugin.h"
 #include "panelpluginsmodel.h"
+#include "windownotifier.h"
 #include <LXQt/PluginInfo>
 
 #include <QScreen>
@@ -116,6 +117,7 @@ LXQtPanel::LXQtPanel(const QString &configGroup, LXQt::Settings *settings, QWidg
     mSettings(settings),
     mConfigGroup(configGroup),
     mPlugins{nullptr},
+    mStandaloneWindows{new WindowNotifier},
     mPanelSize(0),
     mIconSize(0),
     mLineCount(0),
@@ -175,6 +177,9 @@ LXQtPanel::LXQtPanel(const QString &configGroup, LXQt::Settings *settings, QWidg
     connect(LXQt::Settings::globalSettings(), SIGNAL(settingsChanged()), this, SLOT(update()));
     connect(lxqtApp, SIGNAL(themeChanged()), this, SLOT(realign()));
 
+    connect(mStandaloneWindows.data(), &WindowNotifier::firstShown, this, &LXQtPanel::showPanel);
+    connect(mStandaloneWindows.data(), &WindowNotifier::lastHidden, this, &LXQtPanel::hidePanel);
+
     readSettings();
     // the old position might be on a visible screen
     ensureVisible();
@@ -589,6 +594,7 @@ void LXQtPanel::showConfigDialog()
         mConfigDialog = new ConfigPanelDialog(this, nullptr /*make it top level window*/);
 
     mConfigDialog->showConfigPanelPage();
+    mStandaloneWindows->observeWindow(mConfigDialog.data());
     mConfigDialog->show();
     mConfigDialog->raise();
     mConfigDialog->activateWindow();
@@ -608,6 +614,7 @@ void LXQtPanel::showAddPluginDialog()
         mConfigDialog = new ConfigPanelDialog(this, nullptr /*make it top level window*/);
 
     mConfigDialog->showConfigPluginsPage();
+    mStandaloneWindows->observeWindow(mConfigDialog.data());
     mConfigDialog->show();
     mConfigDialog->raise();
     mConfigDialog->activateWindow();
@@ -967,6 +974,7 @@ void LXQtPanel::showPopupMenu(Plugin *plugin)
      * of QDesktopWidget::availableGeometry)
      */
     menu->setGeometry(calculatePopupWindowPos(QCursor::pos(), menu->sizeHint()));
+    willShowWindow(menu);
     menu->show();
 }
 
@@ -1043,6 +1051,14 @@ QRect LXQtPanel::calculatePopupWindowPos(const ILXQtPanelPlugin *plugin, const Q
 /************************************************
 
  ************************************************/
+void LXQtPanel::willShowWindow(QWidget * w)
+{
+    mStandaloneWindows->observeWindow(w);
+}
+
+/************************************************
+
+ ************************************************/
 QString LXQtPanel::qssPosition() const
 {
     return positionToStr(position());
@@ -1107,20 +1123,17 @@ void LXQtPanel::showPanel()
 
 void LXQtPanel::hidePanel()
 {
-    if (mHidable && !mHidden)
+    if (mHidable && !mHidden
+            && !geometry().contains(QCursor::pos())
+            && !mStandaloneWindows->isAnyWindowShown()
+       )
         mHideTimer.start();
 }
 
 void LXQtPanel::hidePanelWork()
 {
-    if (mHidable && !mHidden && !geometry().contains(QCursor::pos()))
-    {
-        mHidden = true;
-        setPanelGeometry();
-    } else
-    {
-        mHideTimer.start();
-    }
+    mHidden = true;
+    setPanelGeometry();
 }
 
 void LXQtPanel::setHidable(bool hidable, bool save)
@@ -1128,7 +1141,7 @@ void LXQtPanel::setHidable(bool hidable, bool save)
     if (mHidable == hidable)
         return;
 
-    mHidable = mHidden = hidable;
+    mHidable = hidable;
 
     if (save)
         saveSettings(true);
diff --git panel/lxqtpanel.h panel/lxqtpanel.h
index 8ff4b8c..990063f 100644
--- panel/lxqtpanel.h
+++ panel/lxqtpanel.h
@@ -48,6 +48,7 @@ class PluginInfo;
 class LXQtPanelLayout;
 class ConfigPanelDialog;
 class PanelPluginsModel;
+class WindowNotifier;
 
 /*! \brief The LXQtPanel class provides a single lxqt-panel.
  */
@@ -80,11 +81,12 @@ public:
     void showPopupMenu(Plugin *plugin = 0);
 
     // ILXQtPanel .........................
-    ILXQtPanel::Position position() const { return mPosition; }
-    QRect globalGometry() const;
+    ILXQtPanel::Position position() const override { return mPosition; }
+    QRect globalGometry() const override;
     Plugin *findPlugin(const ILXQtPanelPlugin *iPlugin) const;
-    QRect calculatePopupWindowPos(QPoint const & absolutePos, QSize const & windowSize) const;
-    QRect calculatePopupWindowPos(const ILXQtPanelPlugin *plugin, const QSize &windowSize) const;
+    QRect calculatePopupWindowPos(QPoint const & absolutePos, QSize const & windowSize) const override;
+    QRect calculatePopupWindowPos(const ILXQtPanelPlugin *plugin, const QSize &windowSize) const override;
+    void willShowWindow(QWidget * w) override;
 
     // For QSS properties ..................
     QString qssPosition() const;
@@ -95,8 +97,8 @@ public:
 
     // Settings
     int panelSize() const { return mPanelSize; }
-    int iconSize() const { return mIconSize; }
-    int lineCount() const { return mLineCount; }
+    int iconSize() const override { return mIconSize; }
+    int lineCount() const override { return mLineCount; }
     int length() const { return mLength; }
     bool lengthInPercents() const { return mLengthInPercents; }
     LXQtPanel::Alignment alignment() const { return mAlignment; }
@@ -138,8 +140,8 @@ signals:
     void pluginRemoved();
 
 protected:
-    bool event(QEvent *event);
-    void showEvent(QShowEvent *event);
+    bool event(QEvent *event) override;
+    void showEvent(QShowEvent *event) override;
 
 public slots:
     void showConfigDialog();
@@ -156,6 +158,7 @@ private:
     QFrame *LXQtPanelWidget;
     QString mConfigGroup;
     QScopedPointer<PanelPluginsModel> mPlugins;
+    QScopedPointer<WindowNotifier> mStandaloneWindows; //!< object for storing info if some standalone window is shown (for preventing hide)
 
     int findAvailableScreen(LXQtPanel::Position position);
     void updateWmStrut();
diff --git panel/plugin.cpp panel/plugin.cpp
index a4acc78..be23a8e 100644
--- panel/plugin.cpp
+++ panel/plugin.cpp
@@ -477,6 +477,7 @@ void Plugin::showConfigureDialog()
     if (!dialog)
         return;
 
+    mPanel->willShowWindow(dialog);
     dialog->show();
     dialog->raise();
     dialog->activateWindow();
diff --git panel/windownotifier.cpp panel/windownotifier.cpp
new file mode 100644
index 0000000..0b41057
--- /dev/null
+++ panel/windownotifier.cpp
@@ -0,0 +1,65 @@
+/* BEGIN_COMMON_COPYRIGHT_HEADER
+ * (c)LGPL2+
+ *
+ * LXQt - a lightweight, Qt based, desktop toolset
+ * http://lxqt.org
+ *
+ * Copyright: 2015 LXQt team
+ * Authors:
+ *   Palo Kisa <palo.kisa@gmail.com>
+ *
+ * This program or library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA
+ *
+ * END_COMMON_COPYRIGHT_HEADER */
+
+#include "windownotifier.h"
+#include <QWidget>
+#include <QEvent>
+
+void WindowNotifier::observeWindow(QWidget * w)
+{
+    //installing the same filter object multiple times doesn't harm
+    w->installEventFilter(this);
+}
+
+
+bool WindowNotifier::eventFilter(QObject * watched, QEvent * event)
+{
+    QWidget * widget = qobject_cast<QWidget *>(watched); //we're observing only QWidgetw
+    auto it = std::lower_bound(mShownWindows.begin(), mShownWindows.end(), widget);
+    switch (event->type())
+    {
+        case QEvent::Close:
+            watched->removeEventFilter(this);
+            //no break
+        case QEvent::Hide:
+            Q_ASSERT(mShownWindows.end() != it);
+            mShownWindows.erase(it);
+            if (mShownWindows.isEmpty())
+                emit lastHidden();
+            break;
+        case QEvent::Show:
+            {
+                const bool first_shown = mShownWindows.isEmpty();
+                mShownWindows.insert(it, widget); //we keep the mShownWindows sorted
+                if (first_shown)
+                    emit firstShown();
+            }
+        default:
+            break;
+    }
+    return false;
+}
diff --git panel/windownotifier.h panel/windownotifier.h
new file mode 100644
index 0000000..53f2f3f
--- /dev/null
+++ panel/windownotifier.h
@@ -0,0 +1,53 @@
+/* BEGIN_COMMON_COPYRIGHT_HEADER
+ * (c)LGPL2+
+ *
+ * LXQt - a lightweight, Qt based, desktop toolset
+ * http://lxqt.org
+ *
+ * Copyright: 2015 LXQt team
+ * Authors:
+ *   Palo Kisa <palo.kisa@gmail.com>
+ *
+ * This program or library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA
+ *
+ * END_COMMON_COPYRIGHT_HEADER */
+
+#if !defined(WINDOWNOTIFIER_H)
+#define WINDOWNOTIFIER_H
+
+#include <QObject>
+
+class QWidget;
+
+class WindowNotifier : public QObject
+{
+    Q_OBJECT
+public:
+    using QObject::QObject;
+
+    void observeWindow(QWidget * w);
+    inline bool isAnyWindowShown() const { return !mShownWindows.isEmpty(); }
+
+    virtual bool eventFilter(QObject * watched, QEvent * event) override;
+signals:
+    void lastHidden();
+    void firstShown();
+
+private:
+    QList<QWidget *> mShownWindows; //!< known shown windows (sorted)
+};
+
+#endif
diff --git plugin-clock/lxqtclock.cpp plugin-clock/lxqtclock.cpp
index 79c2c17..d4603de 100644
--- plugin-clock/lxqtclock.cpp
+++ plugin-clock/lxqtclock.cpp
@@ -286,6 +286,7 @@ void LXQtClock::activated(ActivationReason reason)
     {
         QRect pos = calculatePopupWindowPos(mCalendarPopup->size());
         mCalendarPopup->move(pos.topLeft());
+        willShowWindow(mCalendarPopup);
         mCalendarPopup->show();
     }
     else
diff --git plugin-directorymenu/directorymenu.cpp plugin-directorymenu/directorymenu.cpp
index 8c5ec28..e332e05 100644
--- plugin-directorymenu/directorymenu.cpp
+++ plugin-directorymenu/directorymenu.cpp
@@ -58,11 +58,11 @@ DirectoryMenu::DirectoryMenu(const ILXQtPanelPluginStartupInfo &startupInfo) :
 
 DirectoryMenu::~DirectoryMenu()
 {
-	if(mMenu)
-	{
-		delete mMenu;
-		mMenu = 0;
-	}
+    if(mMenu)
+    {
+        delete mMenu;
+        mMenu = 0;
+    }
 }
 
 void DirectoryMenu::showMenu()
@@ -102,67 +102,67 @@ void DirectoryMenu::showMenu()
             break;
     }
 
+    willShowWindow(mMenu);
     // Just using Qt`s activateWindow() won't work on some WMs like Kwin.
     // Solution is to execute menu 1ms later using timer
-    mButton.activateWindow();
-    mMenu->exec(QPoint(x, y));
+    mMenu->popup(calculatePopupWindowPos(mMenu->sizeHint()).topLeft());
 }
 
 void DirectoryMenu::buildMenu(const QString& path)
 {
-	if(mMenu)
-	{
-		delete mMenu;
-		mMenu = 0;
-	}
+    if(mMenu)
+    {
+        delete mMenu;
+        mMenu = 0;
+    }
 
-	mPathStrings.clear();
+    mPathStrings.clear();
 
-	mMenu = new QMenu();
+    mMenu = new QMenu();
 
-	addActions(mMenu, path);
+    addActions(mMenu, path);
 }
 
 void DirectoryMenu::openDirectory(const QString& path)
 {
-	QDesktopServices::openUrl(QUrl("file://" + QDir::toNativeSeparators(path)));
+    QDesktopServices::openUrl(QUrl("file://" + QDir::toNativeSeparators(path)));
 }
 
 void DirectoryMenu::addMenu(QString path)
 {
-	QSignalMapper* sender = (QSignalMapper* )QObject::sender();
-	QMenu* parentMenu = (QMenu*) sender->mapping(path);
+    QSignalMapper* sender = (QSignalMapper* )QObject::sender();
+    QMenu* parentMenu = (QMenu*) sender->mapping(path);
 
-	if(parentMenu->isEmpty())
-	{
-		addActions(parentMenu, path);
-	}
+    if(parentMenu->isEmpty())
+    {
+        addActions(parentMenu, path);
+    }
 }
 
 void DirectoryMenu::addActions(QMenu* menu, const QString& path)
 {
-	mPathStrings.push_back(path);
+    mPathStrings.push_back(path);
 
-	QAction* openDirectoryAction = menu->addAction(XdgIcon::fromTheme("folder"), tr("Open"));
-	connect(openDirectoryAction, SIGNAL(triggered()), mOpenDirectorySignalMapper, SLOT(map()));
-	mOpenDirectorySignalMapper->setMapping(openDirectoryAction, mPathStrings.back());
+    QAction* openDirectoryAction = menu->addAction(XdgIcon::fromTheme("folder"), tr("Open"));
+    connect(openDirectoryAction, SIGNAL(triggered()), mOpenDirectorySignalMapper, SLOT(map()));
+    mOpenDirectorySignalMapper->setMapping(openDirectoryAction, mPathStrings.back());
 
-	menu->addSeparator();
+    menu->addSeparator();
 
-	QDir dir(path);
-	QFileInfoList list = dir.entryInfoList();
+    QDir dir(path);
+    QFileInfoList list = dir.entryInfoList();
 
-	foreach (const QFileInfo& entry, list)
+    foreach (const QFileInfo& entry, list)
     {
-    	if(entry.isDir() && !entry.isHidden())
-    	{
-			mPathStrings.push_back(entry.fileName());
+        if(entry.isDir() && !entry.isHidden())
+        {
+            mPathStrings.push_back(entry.fileName());
 
-			QMenu* subMenu = menu->addMenu(XdgIcon::fromTheme("folder"), mPathStrings.back());
+            QMenu* subMenu = menu->addMenu(XdgIcon::fromTheme("folder"), mPathStrings.back());
 
-    		connect(subMenu, SIGNAL(aboutToShow()), mMenuSignalMapper, SLOT(map()));
-    		mMenuSignalMapper->setMapping(subMenu, entry.absoluteFilePath());
-    	}
+            connect(subMenu, SIGNAL(aboutToShow()), mMenuSignalMapper, SLOT(map()));
+            mMenuSignalMapper->setMapping(subMenu, entry.absoluteFilePath());
+        }
     }
 }
 
diff --git plugin-dom/domplugin.cpp plugin-dom/domplugin.cpp
index ffd05c6..0988a2b 100644
--- plugin-dom/domplugin.cpp
+++ plugin-dom/domplugin.cpp
@@ -51,6 +51,7 @@ void DomPlugin::showDialog()
         dialog->setAttribute(Qt::WA_DeleteOnClose);
     }
 
+    willShowWindow(dialog);
     dialog->show();
     dialog->activateWindow();
 }
diff --git plugin-mainmenu/lxqtmainmenu.cpp plugin-mainmenu/lxqtmainmenu.cpp
index 9673a4f..b9ff6e4 100644
--- plugin-mainmenu/lxqtmainmenu.cpp
+++ plugin-mainmenu/lxqtmainmenu.cpp
@@ -130,6 +130,7 @@ void LXQtMainMenu::showMenu()
     if (!mMenu)
         return;
 
+    willShowWindow(mMenu);
     // Just using Qt`s activateWindow() won't work on some WMs like Kwin.
     // Solution is to execute menu 1ms later using timer
     mMenu->popup(calculatePopupWindowPos(mMenu->sizeHint()).topLeft());
@@ -227,8 +228,6 @@ void LXQtMainMenu::buildMenu()
     menu->installEventFilter(this);
     connect(menu, &QMenu::aboutToHide, &mHideTimer, static_cast<void (QTimer::*)()>(&QTimer::start));
     connect(menu, &QMenu::aboutToShow, &mHideTimer, &QTimer::stop);
-    // panel notification (needed in case of auto-hide)
-    connect(menu, &QMenu::aboutToHide, dynamic_cast<LXQtPanel *>(panel()), &LXQtPanel::hidePanel);
 
     QMenu *oldMenu = mMenu;
     mMenu = menu;
diff --git plugin-mount/popup.cpp plugin-mount/popup.cpp
index 1c3e7c1..7993681 100644
--- plugin-mount/popup.cpp
+++ plugin-mount/popup.cpp
@@ -90,7 +90,12 @@ Popup::Popup(ILXQtPanelPlugin * plugin, QWidget* parent):
 
 void Popup::showHide()
 {
-    setVisible(isHidden());
+    if (isHidden())
+    {
+        mPlugin->willShowWindow(this);
+        show();
+    } else
+        close();
 }
 
 void Popup::onDeviceAdded(QString const & udi)
diff --git plugin-statusnotifier/statusnotifierbutton.cpp plugin-statusnotifier/statusnotifierbutton.cpp
index fb124c6..71cf78f 100644
--- plugin-statusnotifier/statusnotifierbutton.cpp
+++ plugin-statusnotifier/statusnotifierbutton.cpp
@@ -249,8 +249,10 @@ void StatusNotifierButton::mouseReleaseEvent(QMouseEvent *event)
     else if (Qt::RightButton == event->button())
     {
         if (mMenu)
-            mMenu->popup(QCursor::pos());
-        else
+        {
+            mPlugin->willShowWindow(mMenu);
+            mMenu->popup(mPlugin->calculatePopupWindowPos(mMenu->sizeHint()).topLeft());
+        } else
             interface->ContextMenu(QCursor::pos().x(), QCursor::pos().y());
     }
 
diff --git plugin-taskbar/lxqttaskgroup.cpp plugin-taskbar/lxqttaskgroup.cpp
index 6828216..79e27f5 100644
--- plugin-taskbar/lxqttaskgroup.cpp
+++ plugin-taskbar/lxqttaskgroup.cpp
@@ -84,6 +84,7 @@ void LXQtTaskGroup::contextMenuEvent(QContextMenuEvent *event)
         mPreventPopup = false;
     });
     menu->setGeometry(mPlugin->panel()->calculatePopupWindowPos(mapToGlobal(event->pos()), menu->sizeHint()));
+    mPlugin->willShowWindow(menu);
     menu->show();
 }
 
@@ -418,6 +419,7 @@ void LXQtTaskGroup::setPopupVisible(bool visible, bool fast)
             recalculateFramePosition();
         }
 
+        mPlugin->willShowWindow(mPopup);
         mPopup->show();
         emit popupShown(this);
     }
diff --git plugin-volume/volumebutton.cpp plugin-volume/volumebutton.cpp
index a738a1a..98b3f10 100644
--- plugin-volume/volumebutton.cpp
+++ plugin-volume/volumebutton.cpp
@@ -133,6 +133,7 @@ void VolumeButton::showVolumeSlider()
     m_volumePopup->updateGeometry();
     m_volumePopup->adjustSize();
     QRect pos = mPlugin->calculatePopupWindowPos(m_volumePopup->size());
+    mPlugin->willShowWindow(m_volumePopup);
     m_volumePopup->openAt(pos.topLeft(), Qt::TopLeftCorner);
     m_volumePopup->activateWindow();
 }
diff --git plugin-worldclock/lxqtworldclock.cpp plugin-worldclock/lxqtworldclock.cpp
index 7386049..8fa795d 100644
--- plugin-worldclock/lxqtworldclock.cpp
+++ plugin-worldclock/lxqtworldclock.cpp
@@ -356,6 +356,7 @@ void LXQtWorldClock::activated(ActivationReason reason)
         mPopup->adjustSize();
         mPopup->setGeometry(calculatePopupWindowPos(mPopup->size()));
 
+        willShowWindow(mPopup);
         mPopup->show();
     }
     else