Fix Bug 296970 - split view wrong behavior with search tab

Implemented setActive(bool active), isActive() and activated() signal
for DolphinSearchBox - similar to the KUrlNavigator implementation.

BUG: 296970
FIXED-IN: 4.11.2
REVIEW: 112534

2 files changed, 60 insertions, 0 deletions

diff --git a/src/search/dolphinsearchbox.cpp b/src/search/dolphinsearchbox.cpp
index ef9c2bfcf..cf1f0c8e5 100644
--- a/src/search/dolphinsearchbox.cpp
+++ b/src/search/dolphinsearchbox.cpp
@@ -58,6 +58,7 @@ DolphinSearchBox::DolphinSearchBox(QWidget* parent) :
     QWidget(parent),
     m_startedSearching(false),
     m_readOnly(false),
+    m_active(true),
     m_topLayout(0),
     m_searchLabel(0),
     m_searchInput(0),
@@ -171,6 +172,22 @@ bool DolphinSearchBox::isReadOnly() const
     return m_readOnly;
 }
 
+void DolphinSearchBox::setActive(bool active)
+{
+    if (active != m_active) {
+        m_active = active;
+
+        if (active) {
+            emit activated();
+        }
+    }
+}
+
+bool DolphinSearchBox::isActive() const
+{
+    return m_active;
+}
+
 bool DolphinSearchBox::event(QEvent* event)
 {
     if (event->type() == QEvent::Polish) {
@@ -199,6 +216,21 @@ void DolphinSearchBox::keyReleaseEvent(QKeyEvent* event)
     }
 }
 
+bool DolphinSearchBox::eventFilter(QObject* obj, QEvent* event)
+{
+    switch (event->type()) {
+    case QEvent::FocusIn:
+        setActive(true);
+        setFocus();
+        break;
+
+    default:
+        break;
+    }
+
+    return QObject::eventFilter(obj, event);
+}
+
 void DolphinSearchBox::emitSearchRequest()
 {
     m_startSearchTimer->stop();
@@ -253,6 +285,7 @@ void DolphinSearchBox::slotFacetChanged()
 
 void DolphinSearchBox::initButton(QToolButton* button)
 {
+    button->installEventFilter(this);
     button->setAutoExclusive(true);
     button->setAutoRaise(true);
     button->setCheckable(true);
@@ -298,6 +331,7 @@ void DolphinSearchBox::init()
 
     // Create search box
     m_searchInput = new KLineEdit(this);
+    m_searchInput->installEventFilter(this);
     m_searchInput->setClearButtonShown(true);
     m_searchInput->setFont(KGlobalSettings::generalFont());
     setFocusProxy(m_searchInput);
@@ -348,6 +382,7 @@ void DolphinSearchBox::init()
     connect(m_facetsToggleButton, SIGNAL(clicked()), this, SLOT(slotFacetsButtonToggled()));
 
     m_facetsWidget = new DolphinFacetsWidget(this);
+    m_facetsWidget->installEventFilter(this);
     m_facetsWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Maximum);
     connect(m_facetsWidget, SIGNAL(facetChanged()), this, SLOT(slotFacetChanged()));
 
diff --git a/src/search/dolphinsearchbox.h b/src/search/dolphinsearchbox.h
index f3cc535d6..e4c14b7cb 100644
--- a/src/search/dolphinsearchbox.h
+++ b/src/search/dolphinsearchbox.h
@@ -87,10 +87,27 @@ public:
     void setReadOnly(bool readOnly, const KUrl& query = KUrl());
     bool isReadOnly() const;
 
+    /**
+     * Set the search box to the active mode, if \a active
+     * is true. The active mode is default. The inactive mode only differs
+     * visually from the active mode, no change of the behavior is given.
+     *
+     * Using the search box in the inactive mode is useful when having split views,
+     * where the inactive view is indicated by an search box visually.
+     */
+    void setActive(bool active);
+
+    /**
+     * @return True, if the search box is in the active mode.
+     * @see    DolphinSearchBox::setActive()
+     */
+    bool isActive() const;
+
 protected:
     virtual bool event(QEvent* event);
     virtual void showEvent(QShowEvent* event);
     virtual void keyReleaseEvent(QKeyEvent* event);
+    virtual bool eventFilter(QObject* obj, QEvent* event);
 
 signals:
     /**
@@ -111,6 +128,13 @@ signals:
      */
     void closeRequest();
 
+    /**
+     * Is emitted, if the searchbox has been activated by
+     * an user interaction
+     * @see DolphinSearchBox::setActive()
+     */
+    void activated();
+
 private slots:
     void emitSearchRequest();
     void emitCloseRequest();
@@ -137,6 +161,7 @@ private:
 private:
     bool m_startedSearching;
     bool m_readOnly;
+    bool m_active;
 
     QVBoxLayout* m_topLayout;