Add a mouseSelectionMode property to TextEdit and TextInput.

Adds an option to do per word selection when selectByMouse is true.
Also changes the selection behavior so that the first word selected
remains selected when the direction of the selection changes which
is more consistent with other implementations including the existing
per word selection in QTextEdit.

Task-number: QTBUG-16283
Reviewed-by: Martin Jones

3 files changed, 30 insertions, 4 deletions

diff --git a/src/gui/text/qtextcontrol.cpp b/src/gui/text/qtextcontrol.cpp
index 030e196..e380b37 100644
--- a/src/gui/text/qtextcontrol.cpp
+++ b/src/gui/text/qtextcontrol.cpp
@@ -129,7 +129,8 @@ QTextControlPrivate::QTextControlPrivate()
       isEnabled(true),
       hadSelectionOnMousePress(false),
       ignoreUnusedNavigationEvents(false),
-      openExternalLinks(false)
+      openExternalLinks(false),
+      wordSelectionEnabled(false)
 {}
 
 bool QTextControlPrivate::cursorMoveKeyEvent(QKeyEvent *e)
@@ -1544,11 +1545,16 @@ void QTextControlPrivate::mousePressEvent(QEvent *e, Qt::MouseButton button, con
         }
 #endif
         if (modifiers == Qt::ShiftModifier) {
+            if (wordSelectionEnabled && !selectedWordOnDoubleClick.hasSelection()) {
+                selectedWordOnDoubleClick = cursor;
+                selectedWordOnDoubleClick.select(QTextCursor::WordUnderCursor);
+            }
+
             if (selectedBlockOnTrippleClick.hasSelection())
                 extendBlockwiseSelection(cursorPos);
             else if (selectedWordOnDoubleClick.hasSelection())
                 extendWordwiseSelection(cursorPos, pos.x());
-            else
+            else if (wordSelectionEnabled)
                 setCursorPosition(cursorPos, QTextCursor::KeepAnchor);
         } else {
 
@@ -1626,6 +1632,11 @@ void QTextControlPrivate::mouseMoveEvent(Qt::MouseButtons buttons, const QPointF
     if (newCursorPos == -1)
         return;
 
+    if (wordSelectionEnabled && !selectedWordOnDoubleClick.hasSelection()) {
+        selectedWordOnDoubleClick = cursor;
+        selectedWordOnDoubleClick.select(QTextCursor::WordUnderCursor);
+    }
+
     if (selectedBlockOnTrippleClick.hasSelection())
         extendBlockwiseSelection(newCursorPos);
     else if (selectedWordOnDoubleClick.hasSelection())
@@ -2343,6 +2354,18 @@ bool QTextControl::isDragEnabled() const
     return d->dragEnabled;
 }
 
+void QTextControl::setWordSelectionEnabled(bool enabled)
+{
+    Q_D(QTextControl);
+    d->wordSelectionEnabled = enabled;
+}
+
+bool QTextControl::isWordSelectionEnabled() const
+{
+    Q_D(const QTextControl);
+    return d->wordSelectionEnabled;
+}
+
 #ifndef QT_NO_PRINTER
 void QTextControl::print(QPrinter *printer) const
 {
diff --git a/src/gui/text/qtextcontrol_p.h b/src/gui/text/qtextcontrol_p.h
index 9277b68..31fa843 100644
--- a/src/gui/text/qtextcontrol_p.h
+++ b/src/gui/text/qtextcontrol_p.h
@@ -178,6 +178,9 @@ public:
     void setDragEnabled(bool enabled);
     bool isDragEnabled() const;
 
+    bool isWordSelectionEnabled() const;
+    void setWordSelectionEnabled(bool enabled);
+
 #ifndef QT_NO_PRINTER
     void print(QPrinter *printer) const;
 #endif
@@ -186,8 +189,6 @@ public:
     virtual QRectF blockBoundingRect(const QTextBlock &block) const;
     QAbstractTextDocumentLayout::PaintContext getPaintContext(QWidget *widget) const;
 
-
-
 public Q_SLOTS:
     void setPlainText(const QString &text);
     void setHtml(const QString &text);
diff --git a/src/gui/text/qtextcontrol_p_p.h b/src/gui/text/qtextcontrol_p_p.h
index d7463ca..ecd13ea 100644
--- a/src/gui/text/qtextcontrol_p_p.h
+++ b/src/gui/text/qtextcontrol_p_p.h
@@ -211,6 +211,8 @@ public:
     bool ignoreUnusedNavigationEvents;
     bool openExternalLinks;
 
+    bool wordSelectionEnabled;
+
     QString linkToCopy;
     void _q_copyLink();
     void _q_updateBlock(const QTextBlock &);