Add qtquick customdialog example

The example shows how to create and use custom dialogs
instead of webengine's default dialogs.

Task-number: QTBUG-56063
Change-Id: I440305b2d4357d2b47c6b5a1a821b25c71221aa2
Reviewed-by: Peter Varga <pvarga@inf.u-szeged.hu>

1 files changed, 125 insertions, 0 deletions

diff --git a/examples/webengine/customdialogs/WebView.qml b/examples/webengine/customdialogs/WebView.qml
new file mode 100644
index 000000000..133825a25
--- /dev/null
+++ b/examples/webengine/customdialogs/WebView.qml
@@ -0,0 +1,125 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.0
+import QtWebEngine 1.4
+
+WebEngineView {
+
+    url: "qrc:/index.html"
+    property bool useDefaultDialogs: true
+    signal openForm(var form)
+
+    onContextMenuRequested: function(request) {
+        // we only show menu for links with #openMenu
+        if (!request.linkUrl.toString().endsWith("#openMenu")) {
+            request.accepted = true;
+            return;
+        }
+        // return early to show default menu
+        if (useDefaultDialogs)
+            return;
+
+        request.accepted = true;
+        openForm({item: Qt.resolvedUrl("forms/Menu.qml"),
+                     properties: {"request": request}});
+    }
+
+    onAuthenticationDialogRequested: function(request) {
+        if (useDefaultDialogs)
+            return;
+
+        request.accepted = true;
+        openForm({item: Qt.resolvedUrl("forms/Authentication.qml"),
+                     properties: {"request": request}});
+    }
+
+    onJavaScriptDialogRequested: function(request) {
+        if (useDefaultDialogs)
+            return;
+
+        request.accepted = true;
+        openForm({item: Qt.resolvedUrl("forms/JavaScript.qml"),
+                     properties: {"request": request}});
+    }
+
+    onColorDialogRequested: function(request) {
+        if (useDefaultDialogs)
+            return;
+
+        request.accepted = true;
+        openForm({item: Qt.resolvedUrl("forms/ColorPicker.qml"),
+                     properties: {"request": request}});
+    }
+
+    onFileDialogRequested: function(request) {
+        if (useDefaultDialogs)
+            return;
+
+        request.accepted = true;
+        openForm({item: Qt.resolvedUrl("forms/FilePicker.qml"),
+                     properties: {"request": request}});
+
+    }
+
+    onFormValidationMessageRequested: function(request) {
+        switch (request.type) {
+        case FormValidationMessageRequest.RequestTypeShow:
+            if (useDefaultDialogs)
+                return;
+
+            request.accepted = true;
+            validationMessage.text = request.text;
+            validationMessage.y = request.anchor.y + request.anchor.height + 10;
+            validationMessage.visible = true;
+            break;
+        case FormValidationMessageRequest.RequestTypeMove:
+            break;
+        case FormValidationMessageRequest.RequestTypeHide:
+            validationMessage.visible = false;
+            break;
+        }
+    }
+
+    MessageRectangle {
+        id: validationMessage
+        z: 1
+    }
+}