Merge remote-tracking branch 'origin/5.7' into dev

Conflicts:
	qmake/doc/src/qmake-manual.qdoc
	src/corelib/global/qglobal.cpp
	src/corelib/tools/qstring.cpp
	src/network/socket/qabstractsocket.cpp
	src/network/socket/qnativesocketengine_unix.cpp
	src/plugins/platforms/eglfs/api/qeglfsglobal.h

Change-Id: Id5dfdbd30fa996f9b4b66a0b030b7d3b8c0ef288

5 files changed, 48 insertions, 13 deletions

diff --git a/src/plugins/platforms/cocoa/qcocoadrag.mm b/src/plugins/platforms/cocoa/qcocoadrag.mm
index 1ebcde0584..13ae0382ab 100644
--- a/src/plugins/platforms/cocoa/qcocoadrag.mm
+++ b/src/plugins/platforms/cocoa/qcocoadrag.mm
@@ -40,6 +40,9 @@
 #include "qcocoadrag.h"
 #include "qmacclipboard.h"
 #include "qcocoahelpers.h"
+#ifndef QT_NO_WIDGETS
+#include <QtWidgets/qwidget.h>
+#endif
 
 QT_BEGIN_NAMESPACE
 
@@ -187,7 +190,18 @@ QPixmap QCocoaDrag::dragPixmap(QDrag *drag, QPoint &hotSpot) const
                 const int width = fm.width(s);
                 const int height = fm.height();
                 if (width > 0 && height > 0) {
-                    pm = QPixmap(width, height);
+                    qreal dpr = 1.0;
+                    if (const QWindow *sourceWindow = qobject_cast<QWindow *>(drag->source())) {
+                        dpr = sourceWindow->devicePixelRatio();
+                    }
+#ifndef QT_NO_WIDGETS
+                    else if (const QWidget *sourceWidget = qobject_cast<QWidget *>(drag->source())) {
+                        if (const QWindow *sourceWindow = sourceWidget->window()->windowHandle())
+                            dpr = sourceWindow->devicePixelRatio();
+                    }
+#endif
+                    pm = QPixmap(width * dpr, height * dpr);
+                    pm.setDevicePixelRatio(dpr);
                     QPainter p(&pm);
                     p.fillRect(0, 0, pm.width(), pm.height(), Qt::color0);
                     p.setPen(Qt::color1);
diff --git a/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm b/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
index 0375dd85f2..31a0a3d600 100644
--- a/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
+++ b/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
@@ -589,6 +589,15 @@ void QCocoaFileDialogHelper::QNSOpenSavePanelDelegate_panelClosed(bool accepted)
     QCocoaMenuBar::resetKnownMenuItemsToQt();
     if (accepted) {
         emit accept();
+
+        QString filter = selectedNameFilter();
+        if (filter.isEmpty())
+            emit filterSelected(filter);
+
+        QList<QUrl> files = selectedFiles();
+        emit filesSelected(files);
+        if (files.count() == 1)
+            emit fileSelected(files.first());
     } else {
         emit reject();
     }
diff --git a/src/plugins/platforms/cocoa/qcocoafontdialoghelper.mm b/src/plugins/platforms/cocoa/qcocoafontdialoghelper.mm
index dc7dfb788f..dfda22d376 100644
--- a/src/plugins/platforms/cocoa/qcocoafontdialoghelper.mm
+++ b/src/plugins/platforms/cocoa/qcocoafontdialoghelper.mm
@@ -365,6 +365,7 @@ QT_NAMESPACE_ALIAS_OBJC_CLASS(QNSFontPanelDelegate);
                 emit mHelper->reject();
             } else {
                 emit mHelper->accept();
+                emit mHelper->fontSelected(mHelper->currentFont());
             }
         }
     }
diff --git a/src/plugins/platforms/cocoa/qcocoahelpers.mm b/src/plugins/platforms/cocoa/qcocoahelpers.mm
index 6c6bc3e4eb..6920f75887 100644
--- a/src/plugins/platforms/cocoa/qcocoahelpers.mm
+++ b/src/plugins/platforms/cocoa/qcocoahelpers.mm
@@ -605,7 +605,7 @@ QString qt_mac_removeAmpersandEscapes(QString s)
  returned if it can't be obtained. It is the caller's responsibility to
  CGContextRelease the context when finished using it.
 
- \warning This function is only available on OS X.
+ \warning This function is only available on \macos.
  \warning This function is duplicated in qmacstyle_mac.mm
  */
 CGContextRef qt_mac_cg_context(QPaintDevice *pdev)
diff --git a/src/plugins/platforms/cocoa/qnsview.mm b/src/plugins/platforms/cocoa/qnsview.mm
index 500049a504..af324c07ff 100644
--- a/src/plugins/platforms/cocoa/qnsview.mm
+++ b/src/plugins/platforms/cocoa/qnsview.mm
@@ -1999,16 +1999,27 @@ static QPoint mapWindowCoordinates(QWindow *source, QWindow *target, QPoint poin
     return target->mapFromGlobal(source->mapToGlobal(point));
 }
 
-- (NSDragOperation) draggingSourceOperationMaskForLocal:(BOOL)isLocal
+- (NSDragOperation)draggingSession:(NSDraggingSession *)session
+  sourceOperationMaskForDraggingContext:(NSDraggingContext)context
 {
-    Q_UNUSED(isLocal);
+    Q_UNUSED(session);
+    Q_UNUSED(context);
     QCocoaDrag* nativeDrag = QCocoaIntegration::instance()->drag();
     return qt_mac_mapDropActions(nativeDrag->currentDrag()->supportedActions());
 }
 
-- (BOOL) ignoreModifierKeysWhileDragging
+- (BOOL)ignoreModifierKeysForDraggingSession:(NSDraggingSession *)session
 {
-    return NO;
+    Q_UNUSED(session);
+    // According to the "Dragging Sources" chapter on Cocoa DnD Programming
+    // (https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/DragandDrop/Concepts/dragsource.html),
+    // if the control, option, or command key is pressed, the source’s
+    // operation mask is filtered to only contain a reduced set of operations.
+    //
+    // Since Qt already takes care of tracking the keyboard modifiers, we
+    // don't need (or want) Cocoa to filter anything. Instead, we'll let
+    // the application do the actual filtering.
+    return YES;
 }
 
 - (BOOL)wantsPeriodicDraggingUpdates
@@ -2165,27 +2176,27 @@ static QPoint mapWindowCoordinates(QWindow *source, QWindow *target, QPoint poin
     return response.isAccepted();
 }
 
-- (void)draggedImage:(NSImage*) img endedAt:(NSPoint) point operation:(NSDragOperation) operation
+- (void)draggingSession:(NSDraggingSession *)session
+           endedAtPoint:(NSPoint)screenPoint
+              operation:(NSDragOperation)operation
 {
-    Q_UNUSED(img);
+    Q_UNUSED(session);
     Q_UNUSED(operation);
     QWindow *target = findEventTargetWindow(m_window);
     if (!target)
         return;
 
-// keep our state, and QGuiApplication state (buttons member) in-sync,
-// or future mouse events will be processed incorrectly
+    // keep our state, and QGuiApplication state (buttons member) in-sync,
+    // or future mouse events will be processed incorrectly
     NSUInteger pmb = [NSEvent pressedMouseButtons];
     for (int buttonNumber = 0; buttonNumber < 32; buttonNumber++) { // see cocoaButton2QtButton() for the 32 value
         if (!(pmb & (1 << buttonNumber)))
             m_buttons &= ~cocoaButton2QtButton(buttonNumber);
     }
 
-    NSPoint windowPoint = [self convertPoint: point fromView: nil];
+    NSPoint windowPoint = [self.window convertRectFromScreen:NSMakeRect(screenPoint.x, screenPoint.y, 1, 1)].origin;
     QPoint qtWindowPoint(windowPoint.x, windowPoint.y);
 
-    NSWindow *window = [self window];
-    NSPoint screenPoint = [window convertRectToScreen:NSMakeRect(point.x, point.y, 0, 0)].origin;
     QPoint qtScreenPoint = QPoint(screenPoint.x, qt_mac_flipYCoordinate(screenPoint.y));
 
     QWindowSystemInterface::handleMouseEvent(target, mapWindowCoordinates(m_window, target, qtWindowPoint), qtScreenPoint, m_buttons);