QQuickTextEdit: added clear() method

Task-number: QTBUG-50428
Change-Id: Id618616f8d8d50c2a2eba79a2bf6969662e727b8
Reviewed-by: J-P Nurmi <jpnurmi@theqtcompany.com>

5 files changed, 37 insertions, 0 deletions

diff --git a/src/quick/items/qquicktextcontrol.cpp b/src/quick/items/qquicktextcontrol.cpp
index d3e858c67f..f87601dfe1 100644
--- a/src/quick/items/qquicktextcontrol.cpp
+++ b/src/quick/items/qquicktextcontrol.cpp
@@ -577,6 +577,13 @@ void QQuickTextControl::redo()
     updateCursorRectangle(true);
 }
 
+void QQuickTextControl::clear()
+{
+    Q_D(QQuickTextControl);
+    d->cursor.select(QTextCursor::Document);
+    d->cursor.removeSelectedText();
+}
+
 QQuickTextControl::QQuickTextControl(QTextDocument *doc, QObject *parent)
     : QObject(*new QQuickTextControlPrivate, parent)
 {
diff --git a/src/quick/items/qquicktextcontrol_p.h b/src/quick/items/qquicktextcontrol_p.h
index 146201eb70..06a1ee4f19 100644
--- a/src/quick/items/qquicktextcontrol_p.h
+++ b/src/quick/items/qquicktextcontrol_p.h
@@ -128,6 +128,7 @@ public Q_SLOTS:
 
     void undo();
     void redo();
+    void clear();
 
     void selectAll();
 
diff --git a/src/quick/items/qquicktextedit.cpp b/src/quick/items/qquicktextedit.cpp
index 0535bc4e6b..75eab3f2fe 100644
--- a/src/quick/items/qquicktextedit.cpp
+++ b/src/quick/items/qquicktextedit.cpp
@@ -328,6 +328,8 @@ QString QQuickTextEdit::text() const
     insert() and remove() methods provide more fine-grained control and
     remarkably better performance for modifying especially large rich text
     content.
+
+    \sa clear()
 */
 void QQuickTextEdit::setText(const QString &text)
 {
@@ -2197,6 +2199,13 @@ void QQuickTextEditPrivate::init()
     q->updateSize();
 }
 
+void QQuickTextEditPrivate::resetInputMethod()
+{
+    Q_Q(QQuickTextEdit);
+    if (!q->isReadOnly() && q->hasActiveFocus() && qGuiApp)
+        QGuiApplication::inputMethod()->reset();
+}
+
 void QQuickTextEdit::q_textChanged()
 {
     Q_D(QQuickTextEdit);
@@ -2952,4 +2961,22 @@ void QQuickTextEdit::resetBottomPadding()
     d->setBottomPadding(0, true);
 }
 
+/*!
+    \qmlmethod QtQuick::TextEdit::clear()
+    \since 5.7
+
+    Clears the contents of the text edit
+    and resets partial text input from an input method.
+
+    Use this method instead of setting the \l text property to an empty string.
+
+    \sa QInputMethod::reset()
+*/
+void QQuickTextEdit::clear()
+{
+    Q_D(QQuickTextEdit);
+    d->resetInputMethod();
+    d->control->clear();
+}
+
 QT_END_NAMESPACE
diff --git a/src/quick/items/qquicktextedit_p.h b/src/quick/items/qquicktextedit_p.h
index e222f497e3..0e12c68582 100644
--- a/src/quick/items/qquicktextedit_p.h
+++ b/src/quick/items/qquicktextedit_p.h
@@ -346,6 +346,7 @@ public Q_SLOTS:
     void insert(int position, const QString &text);
     void remove(int start, int end);
     Q_REVISION(2) void append(const QString &text);
+    Q_REVISION(7) void clear();
 
 private Q_SLOTS:
     void q_textChanged();
diff --git a/src/quick/items/qquicktextedit_p_p.h b/src/quick/items/qquicktextedit_p_p.h
index a2b4c1ab99..5059675541 100644
--- a/src/quick/items/qquicktextedit_p_p.h
+++ b/src/quick/items/qquicktextedit_p_p.h
@@ -135,6 +135,7 @@ public:
 
     void init();
 
+    void resetInputMethod();
     void updateDefaultTextOption();
     void relayoutDocument();
     bool determineHorizontalAlignment();