X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/3957884bf2e44619a4ed35ba0ffead519988885b..cdebd199251bbdf2826bcc65fe0483420d4a6784:/src/views/tooltips/tooltipmanager.cpp

diff --git a/src/views/tooltips/tooltipmanager.cpp b/src/views/tooltips/tooltipmanager.cpp
index df89a882e..bd6948363 100644
--- a/src/views/tooltips/tooltipmanager.cpp
+++ b/src/views/tooltips/tooltipmanager.cpp
@@ -21,6 +21,7 @@
 
 #include "filemetadatatooltip.h"
 #include <KIcon>
+#include <KIO/JobUiDelegate>
 #include <KIO/PreviewJob>
 
 #include <QApplication>
@@ -33,16 +34,20 @@
 
 ToolTipManager::ToolTipManager(QWidget* parent) :
     QObject(parent),
-    m_parentWidget(parent),
     m_showToolTipTimer(0),
     m_contentRetrievalTimer(0),
     m_fileMetaDataToolTip(0),
     m_toolTipRequested(false),
     m_metaDataRequested(false),
     m_appliedWaitCursor(false),
+    m_margin(4),
     m_item(),
     m_itemRect()
 {
+    if (parent) {
+        m_margin = qMax(m_margin, parent->style()->pixelMetric(QStyle::PM_ToolTipLabelFrameWidth));
+    }
+
     m_showToolTipTimer = new QTimer(this);
     m_showToolTipTimer->setSingleShot(true);
     m_showToolTipTimer->setInterval(500);
@@ -68,15 +73,14 @@ void ToolTipManager::showToolTip(const KFileItem& item, const QRectF& itemRect)
 
     m_itemRect = itemRect.toRect();
 
-    const int margin = toolTipMargin();
-    m_itemRect.adjust(-margin, -margin, margin, margin);
+    m_itemRect.adjust(-m_margin, -m_margin, m_margin, m_margin);
     m_item = item;
 
     // Only start the retrieving of the content, when the mouse has been over this
     // item for 200 milliseconds. This prevents a lot of useless preview jobs and
     // meta data retrieval, when passing rapidly over a lot of items.
     Q_ASSERT(!m_fileMetaDataToolTip);
-    m_fileMetaDataToolTip = new FileMetaDataToolTip(m_parentWidget);
+    m_fileMetaDataToolTip = new FileMetaDataToolTip();
     connect(m_fileMetaDataToolTip, SIGNAL(metaDataRequestFinished(KFileItemList)),
             this, SLOT(slotMetaDataRequestFinished()));
 
@@ -100,7 +104,9 @@ void ToolTipManager::hideToolTip()
 
     if (m_fileMetaDataToolTip) {
         m_fileMetaDataToolTip->hide();
-        delete m_fileMetaDataToolTip;
+        // Do not delete the tool tip immediately to prevent crashes when
+        // QCoreApplication tries to deliver an 'Enter' event to it, see bug 310579.
+        m_fileMetaDataToolTip->deleteLater();
         m_fileMetaDataToolTip = 0;
     }
 }
@@ -123,7 +129,11 @@ void ToolTipManager::startContentRetrieval()
     // Request a preview of the item
     m_fileMetaDataToolTip->setPreview(QPixmap());
 
-    KIO::PreviewJob* job = KIO::filePreview(KFileItemList() << m_item, QSize(256, 256));
+    KIO::PreviewJob* job = new KIO::PreviewJob(KFileItemList() << m_item, QSize(256, 256));
+    job->setIgnoreMaximumSize(m_item.isLocalFile());
+    if (job->ui()) {
+        job->ui()->setWindow(qApp->activeWindow());
+    }
 
     connect(job, SIGNAL(gotPreview(KFileItem,QPixmap)),
             this, SLOT(setPreviewPix(KFileItem,QPixmap)));
@@ -216,11 +226,10 @@ void ToolTipManager::showToolTip()
     // It must be assured that:
     // - the content is fully visible
     // - the content is not drawn inside m_itemRect
-    const int margin = toolTipMargin();
-    const bool hasRoomToLeft  = (m_itemRect.left()   - size.width()  - margin >= screen.left());
-    const bool hasRoomToRight = (m_itemRect.right()  + size.width()  + margin <= screen.right());
-    const bool hasRoomAbove   = (m_itemRect.top()    - size.height() - margin >= screen.top());
-    const bool hasRoomBelow   = (m_itemRect.bottom() + size.height() + margin <= screen.bottom());
+    const bool hasRoomToLeft  = (m_itemRect.left()   - size.width()  - m_margin >= screen.left());
+    const bool hasRoomToRight = (m_itemRect.right()  + size.width()  + m_margin <= screen.right());
+    const bool hasRoomAbove   = (m_itemRect.top()    - size.height() - m_margin >= screen.top());
+    const bool hasRoomBelow   = (m_itemRect.bottom() + size.height() + m_margin <= screen.bottom());
     if (!hasRoomAbove && !hasRoomBelow && !hasRoomToLeft && !hasRoomToRight) {
         return;
     }
@@ -232,16 +241,16 @@ void ToolTipManager::showToolTip()
             x = screen.right() - size.width() + 1;
         }
         if (hasRoomBelow) {
-            y = m_itemRect.bottom() + margin;
+            y = m_itemRect.bottom() + m_margin;
         } else {
-            y = m_itemRect.top() - size.height() - margin;
+            y = m_itemRect.top() - size.height() - m_margin;
         }
     } else {
         Q_ASSERT(hasRoomToLeft || hasRoomToRight);
         if (hasRoomToRight) {
-            x = m_itemRect.right() + margin;
+            x = m_itemRect.right() + m_margin;
         } else {
-            x = m_itemRect.left() - size.width() - margin;
+            x = m_itemRect.left() - size.width() - m_margin;
         }
         // Put the tooltip at the bottom of the screen. The x-coordinate has already
         // been adjusted, so that no overlapping with m_itemRect occurs.
@@ -257,10 +266,4 @@ void ToolTipManager::showToolTip()
     m_toolTipRequested = false;
 }
 
-int ToolTipManager::toolTipMargin() const
-{
-    const int margin = m_parentWidget->style()->pixelMetric(QStyle::PM_ToolTipLabelFrameWidth);
-    return qMax(4, margin);
-}
-
 #include "tooltipmanager.moc"