QmlDesigner: Add control for material management

 - Create EditableListView for material management
 - Add id list functionality to PropertyEditorValue

Task-number: QDS-1258
Task-number: QDS-1256
Change-Id: I1694648b36845b22f4773ecbd578d77c22c934e2
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

5 files changed, 382 insertions, 2 deletions

diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/EditableListView.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/EditableListView.qml
new file mode 100644
index 0000000000..050f8f45ed
--- /dev/null
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/EditableListView.qml
@@ -0,0 +1,213 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+import QtQuick 2.12
+import QtQuick.Layouts 1.12
+import StudioControls 1.0 as StudioControls
+import StudioTheme 1.0 as StudioTheme
+
+Rectangle {
+    id: editableListView
+
+    property variant backendValue
+
+    ExtendedFunctionLogic {
+        id: extFuncLogic
+        backendValue: editableListView.backendValue
+    }
+
+    property var model
+    onModelChanged: myRepeater.updateModel()
+
+    signal add(string value)
+    signal remove(int idx)
+    signal replace(int idx, string value)
+
+    property alias actionIndicator: actionIndicator
+
+    property alias actionIndicatorVisible: actionIndicator.visible
+    property real __actionIndicatorWidth: StudioTheme.Values.squareComponentWidth
+    property real __actionIndicatorHeight: StudioTheme.Values.height
+
+    color: "transparent"
+    border.color: StudioTheme.Values.themeControlOutline
+    border.width: StudioTheme.Values.border
+
+    property int numVisibleItems: myRepeater.count
+
+    Layout.preferredWidth: StudioTheme.Values.height * 10
+    Layout.preferredHeight: myColumn.height
+
+    Component {
+        id: myDelegate
+        ListViewComboBox {
+            id: itemFilterComboBox
+
+            property int myIndex: index
+            property bool empty: itemFilterComboBox.initialModelData === ""
+
+            validator: RegExpValidator { regExp: /(^[a-z_]\w*|^[A-Z]\w*\.{1}([a-z_]\w*\.?)+)/ }
+
+            actionIndicatorVisible: false
+            typeFilter: "QtQuick3D.Material"
+            editText: modelData
+            initialModelData: modelData
+
+            width: editableListView.width
+
+            onFocusChanged: {
+                if (itemFilterComboBox.focus) {
+                    myColumn.currentIndex = index
+                }
+
+                if (itemFilterComboBox.empty && itemFilterComboBox.editText !== "") {
+                    myRepeater.dirty = false
+                    editableListView.add(itemFilterComboBox.editText)
+                }
+            }
+
+            onCompressedActivated: {
+                if (itemFilterComboBox.empty && itemFilterComboBox.editText !== "") {
+                    myRepeater.dirty = false
+                    editableListView.add(itemFilterComboBox.editText)
+                } else {
+                    editableListView.replace(myIndex, itemFilterComboBox.editText)
+                }
+            }
+        }
+    }
+
+    Rectangle {
+        id: highlightRect
+        color: "transparent"
+        border.width: StudioTheme.Values.border
+        border.color: StudioTheme.Values.themeInteraction
+        x: myColumn.currentItem ? myColumn.currentItem.x : 0
+        y: myColumn.currentItem ? myColumn.currentItem.y : 0
+        z: 10
+        width: myColumn.currentItem ? myColumn.currentItem.width : 0
+        height: myColumn.currentItem ? myColumn.currentItem.height : 0
+    }
+
+    Column {
+        id: myColumn
+
+        property int currentIndex: -1
+        property Item currentItem
+
+        spacing: -1
+
+        onCurrentIndexChanged: myColumn.currentItem = myRepeater.itemAt(myColumn.currentIndex)
+
+        Repeater {
+            id: myRepeater
+
+            property bool dirty: false
+            property var localModel: []
+
+            delegate: myDelegate
+
+            onItemAdded: function(index, item) {
+                if (index === myColumn.currentIndex)
+                    myColumn.currentItem = item
+            }
+
+            function updateModel() {
+                var lastIndex = myColumn.currentIndex
+                myColumn.currentIndex = -1
+                myRepeater.localModel = []
+
+                editableListView.model.forEach(function(item) {
+                    myRepeater.localModel.push(item)
+                });
+
+                // if list view is still dirty, then last state had an unfinished/empty ComboBox
+                if (myRepeater.dirty)
+                    myRepeater.localModel.push("")
+
+                myRepeater.model = myRepeater.localModel // trigger on change handler
+
+                if (lastIndex < 0 && myRepeater.localModel.length > 0)
+                    myColumn.currentIndex = 0
+                else if (myRepeater.localModel.length > lastIndex)
+                    myColumn.currentIndex = lastIndex
+                else
+                    myColumn.currentIndex = myRepeater.localModel.length - 1
+            }
+        }
+
+        Row {
+            id: row
+            spacing: -StudioTheme.Values.border
+
+            StudioControls.ActionIndicator {
+                id: actionIndicator
+                width: actionIndicator.visible ? __actionIndicatorWidth : 0
+                height: actionIndicator.visible ? __actionIndicatorHeight : 0
+                showBackground: true
+
+                icon.color: extFuncLogic.color
+                icon.text: extFuncLogic.glyph
+                onClicked: extFuncLogic.show()
+            }
+            StudioControls.AbstractButton {
+                buttonIcon: "+"
+                iconFont: StudioTheme.Constants.font
+                enabled: !myRepeater.dirty
+                onClicked: {
+                    var idx = myRepeater.localModel.push("") - 1
+                    myRepeater.model = myRepeater.localModel // trigger on change handler
+                    myRepeater.dirty = true
+                    myColumn.currentIndex = idx
+                    myColumn.currentItem.forceActiveFocus()
+                }
+            }
+            StudioControls.AbstractButton {
+                buttonIcon: "-"
+                iconFont: StudioTheme.Constants.font
+                enabled: myRepeater.model.length
+                onClicked: {
+                    var lastItem = myColumn.currentIndex === myRepeater.localModel.length - 1
+                    if (myColumn.currentItem.initialModelData === "") {
+                        myRepeater.localModel.pop()
+                        myRepeater.dirty = false
+                        myRepeater.model = myRepeater.localModel // trigger on change handler
+                    } else {
+                        editableListView.remove(myColumn.currentIndex)
+                    }
+                    if (!lastItem)
+                        myColumn.currentIndex = myColumn.currentIndex - 1
+                }
+            }
+            Rectangle {
+                color: StudioTheme.Values.themeControlBackground
+                border.width: StudioTheme.Values.border
+                border.color: StudioTheme.Values.themeControlOutline
+                height: StudioTheme.Values.height
+                width: editableListView.width - (StudioTheme.Values.height - StudioTheme.Values.border) * (actionIndicatorVisible ? 3 : 2)
+            }
+        }
+    }
+}
diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/ListViewComboBox.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/ListViewComboBox.qml
new file mode 100644
index 0000000000..d1daa7baf8
--- /dev/null
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/ListViewComboBox.qml
@@ -0,0 +1,60 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Quick 3D.
+**
+** $QT_BEGIN_LICENSE:GPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 or (at your option) any later version
+** approved by the KDE Free Qt Foundation. The licenses are as published by
+** the Free Software Foundation and appearing in the file LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.12
+import HelperWidgets 2.0 as HelperWidgets
+import StudioControls 1.0 as StudioControls
+
+StudioControls.ComboBox {
+    id: comboBox
+
+    property alias typeFilter: itemFilterModel.typeFilter
+
+    property var initialModelData
+    property bool __isCompleted: false
+
+    editable: true
+    model: itemFilterModel.itemModel
+
+    HelperWidgets.ItemFilterModel {
+        id: itemFilterModel
+        modelNodeBackendProperty: modelNodeBackend
+    }
+
+    Component.onCompleted: {
+        comboBox.__isCompleted = true
+
+        // Workaround for proper initialization. Use the initial modelData value and search for it
+        // in the model. If nothing was found, set the editText to the initial modelData.
+        comboBox.currentIndex = comboBox.find(comboBox.initialModelData)
+
+        if (comboBox.currentIndex === -1)
+            comboBox.editText = comboBox.initialModelData
+    }
+}
diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/qmldir b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/qmldir
index 11d39ed9e3..3918b26aa1 100644
--- a/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/qmldir
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/qmldir
@@ -17,6 +17,7 @@ ComboBox 2.0 ComboBox.qml
 CustomCheckBoxStyle 2.0 CustomCheckBoxStyle.qml
 CustomComboBoxStyle 2.0 CustomComboBoxStyle.qml
 CustomSpinBoxStyle 2.0 CustomSpinBoxStyle.qml
+EditableListView 2.0 EditableListView.qml
 ExpandingSpacer 2.0 ExpandingSpacer.qml
 ExtendedFunctionButton 2.0 ExtendedFunctionButton.qml
 ExtendedFunctionLogic 2.0 ExtendedFunctionLogic.qml
@@ -30,6 +31,7 @@ GradientPresetTabContent 2.0 GradientPresetTabContent.qml
 GroupBox 2.0 GroupBox.qml
 HueSlider 2.0 HueSlider.qml
 IconLabel 2.0 IconLabel.qml
+ListViewComboBox 2.0 ListViewComboBox.qml
 Label 2.0 Label.qml
 LineEdit 2.0 LineEdit.qml
 OriginControl 2.0 OriginControl.qml
diff --git a/src/plugins/qmldesigner/components/propertyeditor/propertyeditorvalue.cpp b/src/plugins/qmldesigner/components/propertyeditor/propertyeditorvalue.cpp
index c4a928b1ec..8c4bc83297 100644
--- a/src/plugins/qmldesigner/components/propertyeditor/propertyeditorvalue.cpp
+++ b/src/plugins/qmldesigner/components/propertyeditor/propertyeditorvalue.cpp
@@ -34,6 +34,7 @@
 #include <nodemetainfo.h>
 #include <qmlobjectnode.h>
 #include <bindingproperty.h>
+#include <utils/qtcassert.h>
 
 //using namespace QmlDesigner;
 
@@ -348,6 +349,99 @@ QString PropertyEditorValue::getTranslationContext() const
     return QString();
 }
 
+bool PropertyEditorValue::isIdList() const
+{
+    if (modelNode().isValid() && modelNode().metaInfo().isValid() && modelNode().metaInfo().hasProperty(name())) {
+        const QmlDesigner::QmlObjectNode objectNode(modelNode());
+        if (objectNode.isValid() && objectNode.hasBindingProperty(name())) {
+            static const QRegExp rx("^[a-z_]\\w*|^[A-Z]\\w*\\.{1}([a-z_]\\w*\\.?)+");
+            const QString exp = objectNode.propertyAffectedByCurrentState(name()) ? expression() : modelNode().bindingProperty(name()).expression();
+            for (const auto &str : generateStringList(exp))
+            {
+                if (!rx.exactMatch(str))
+                    return false;
+            }
+            return true;
+        }
+        return false;
+    }
+    return false;
+}
+
+QStringList PropertyEditorValue::getExpressionAsList() const
+{
+    return generateStringList(expression());
+}
+
+bool PropertyEditorValue::idListAdd(const QString &value)
+{
+    QTC_ASSERT(isIdList(), return false);
+
+    static const QRegExp rx("^[a-z_]\\w*|^[A-Z]\\w*\\.{1}([a-z_]\\w*\\.?)+");
+    if (!rx.exactMatch(value))
+        return false;
+
+    auto stringList = generateStringList(expression());
+    stringList.append(value);
+    setExpressionWithEmit(generateString(stringList));
+
+    return true;
+}
+
+bool PropertyEditorValue::idListRemove(int idx)
+{
+    QTC_ASSERT(isIdList(), return false);
+
+    auto stringList = generateStringList(expression());
+
+    if (idx < 0 || idx >= stringList.size())
+        return false;
+
+    stringList.removeAt(idx);
+    setExpressionWithEmit(generateString(stringList));
+
+    return true;
+}
+
+bool PropertyEditorValue::idListReplace(int idx, const QString &value)
+{
+    QTC_ASSERT(isIdList(), return false);
+
+    static const QRegExp rx("^[a-z_]\\w*|^[A-Z]\\w*\\.{1}([a-z_]\\w*\\.?)+");
+    if (!rx.exactMatch(value))
+        return false;
+
+    auto stringList = generateStringList(expression());
+
+    if (idx < 0 || idx >= stringList.size())
+        return false;
+
+    stringList.replace(idx, value);
+    setExpressionWithEmit(generateString(stringList));
+
+    return true;
+}
+
+QStringList PropertyEditorValue::generateStringList(const QString &string) const
+{
+    QString copy = string;
+    copy = copy.remove("[").remove("]");
+
+    QStringList tmp = copy.split(",", QString::SkipEmptyParts);
+    for (QString &str : tmp)
+        str = str.trimmed();
+
+    return tmp;
+}
+
+QString PropertyEditorValue::generateString(const QStringList &stringList) const
+{
+    if (stringList.size() > 1)
+        return "[" + stringList.join(",") + "]";
+    else
+        return stringList.first();
+}
+
 void PropertyEditorValue::registerDeclarativeTypes()
 {
     qmlRegisterType<PropertyEditorValue>("HelperWidgets",2,0,"PropertyEditorValue");
@@ -490,4 +584,3 @@ void PropertyEditorNodeWrapper::update()
         emit typeChanged();
     }
 }
-
diff --git a/src/plugins/qmldesigner/components/propertyeditor/propertyeditorvalue.h b/src/plugins/qmldesigner/components/propertyeditor/propertyeditorvalue.h
index e74196f55c..481fbb3458 100644
--- a/src/plugins/qmldesigner/components/propertyeditor/propertyeditorvalue.h
+++ b/src/plugins/qmldesigner/components/propertyeditor/propertyeditorvalue.h
@@ -83,6 +83,8 @@ class PropertyEditorValue : public QObject
     Q_PROPERTY(bool isValid READ isValid NOTIFY isValidChanged FINAL)
     Q_PROPERTY(bool isTranslated READ isTranslated NOTIFY expressionChanged FINAL)
 
+    Q_PROPERTY(QStringList expressionAsList READ getExpressionAsList NOTIFY expressionChanged FINAL)
+
     Q_PROPERTY(QString name READ nameAsQString FINAL)
     Q_PROPERTY(PropertyEditorNodeWrapper* complexNode READ complexNode NOTIFY complexNodeChanged FINAL)
 
@@ -130,6 +132,13 @@ public:
 
     Q_INVOKABLE QString getTranslationContext() const;
 
+    bool isIdList() const;
+
+    Q_INVOKABLE QStringList getExpressionAsList() const;
+    Q_INVOKABLE bool idListAdd(const QString &value);
+    Q_INVOKABLE bool idListRemove(int idx);
+    Q_INVOKABLE bool idListReplace(int idx, const QString &value);
+
 public slots:
     void resetValue();
     void setEnumeration(const QString &scope, const QString &name);
@@ -149,7 +158,10 @@ signals:
     void isValidChanged();
     void isExplicitChanged();
 
-private: //variables
+private:
+    QStringList generateStringList(const QString &string) const;
+    QString generateString(const QStringList &stringList) const;
+
     QmlDesigner::ModelNode m_modelNode;
     QVariant m_value;
     QString m_expression;