Add printRequest()

Adds printRequested() signal for web content. This signal
is emitted on javascript window.print().

This change updates also qt printview manager implementation,
fixes a corner case and warnings about ipc unconsumed attachments.

Task-number: QTBUG-69237
Task-number: QTBUG-53745
Change-Id: I0c47b732e27e929ac6db237fb562b7d5f9b959c2
Reviewed-by: Michael Brüning <michael.bruning@qt.io>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/webengine/api/qquickwebengineview.cpp b/src/webengine/api/qquickwebengineview.cpp
index aaa8d58c5..f24ba1d7d 100644
--- a/src/webengine/api/qquickwebengineview.cpp
+++ b/src/webengine/api/qquickwebengineview.cpp
@@ -640,6 +640,14 @@ WebContentsAdapter *QQuickWebEngineViewPrivate::webContentsAdapter()
     return adapter.data();
 }
 
+void QQuickWebEngineViewPrivate::printRequested()
+{
+    Q_Q(QQuickWebEngineView);
+    QTimer::singleShot(0, q, [q]() {
+        Q_EMIT q->printRequested();
+    });
+}
+
 WebEngineSettings *QQuickWebEngineViewPrivate::webEngineSettings() const
 {
     return m_settings->d_ptr.data();