QmlDesigner: Add operators to expression builder

* Show operator fills when cursor is placed at position where operator
  is required
* Convert operators from real syntax to text version

Task-number: QDS-10630
Task-number: QDS-10638
Change-Id: Iffceb24024b7cde9a93c2acd0033fedd54e2ee32
Reviewed-by: Qt CI Patch Build Bot <ci_patchbuild_bot@qt.io>
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

share/qtcreator/qmldesigner/connectionseditor/ConnectionsDialogForm.qml

@@ -181,10 +181,12 @@ Column {
         color: StudioTheme.Values.themeToolbarBackground
 
         Text {
+            width: parent.width - 8 // twice the editor button margins
             anchors.centerIn: parent
             text: backend.source
             color: StudioTheme.Values.themeTextColor
             font.pixelSize: StudioTheme.Values.myFontSize
+            wrapMode: Text.WordWrap
         }
 
         HelperWidgets.AbstractButton {

share/qtcreator/qmldesigner/connectionseditor/ExpressionBuilder.qml

@@ -87,10 +87,68 @@ Rectangle {
         newTextInput.index = index
         newTextInput.visible = true
         newTextInput.forceActiveFocus()
+
+        if (!root.shadowPillVisible)
+            popup.showOperators = root.conditionListModel.operatorAllowed(index)
+
         // Open suggestion popup
         popup.open()
     }
 
+    ListModel {
+        id: __operatorModel
+        function convertValueToName(value) {
+            for (var i = 0; i < __operatorModel.count; ++i) {
+                let element = __operatorModel.get(i)
+                if (element.value === value )
+                    return element.name
+            }
+
+            return value
+        }
+
+        ListElement {
+            name: "AND"
+            value: "&&"
+            tooltip: QT_TR_NOOP("This is AND (&&)")
+        }
+        ListElement {
+            name: "OR"
+            value: "||"
+            tooltip: QT_TR_NOOP("This is OR (||)")
+        }
+        ListElement {
+            name: "EQUAL"
+            value: "==="
+            tooltip: QT_TR_NOOP("This is EQUAL (===)")
+        }
+        ListElement {
+            name: "NOT EQUAL"
+            value: "!=="
+            tooltip: QT_TR_NOOP("This is NOT EQUAL (!==)")
+        }
+        ListElement {
+            name: "GREATER"
+            value: ">"
+            tooltip: QT_TR_NOOP("This is GREATER (>)")
+        }
+        ListElement {
+            name: "LESS"
+            value: "<"
+            tooltip: QT_TR_NOOP("This is LESS (<)")
+        }
+        ListElement {
+            name: "GREATER OR EQUAL"
+            value: ">="
+            tooltip: QT_TR_NOOP("This is GREATER OR EQUAL (>=)")
+        }
+        ListElement {
+            name: "LESS OR EQUAL"
+            value: "<="
+            tooltip: QT_TR_NOOP("This is LESS OR EQUAL (<=)")
+        }
+    }
+
     StudioControls.ToolTip {
         id: toolTip
         visible: mouseArea.containsMouse && toolTip.text !== ""
@@ -197,6 +255,8 @@ Rectangle {
             Pill {
                 id: pill
 
+                operatorModel: __operatorModel
+
                 onRemove: function() {
                     // If pill has focus due to selection or keyboard navigation
                     if (pill.focus)
@@ -289,6 +349,8 @@ Rectangle {
         y: root.height
         width: root.width
 
+        operatorModel: __operatorModel
+
         //onOpened: console.log("POPUP opened")
         //onClosed: console.log("POPUP closed")
 

share/qtcreator/qmldesigner/connectionseditor/Pill.qml

@@ -31,6 +31,7 @@ FocusScope {
     signal submit(int cursorPosition)
 
     readonly property int margin: StudioTheme.Values.flowPillMargin
+    property var operatorModel
 
     width: {
         if (root.isEditable()) {
@@ -88,7 +89,7 @@ FocusScope {
 
             return 0
         }
-        radius: 4
+        radius: StudioTheme.Values.flowPillRadius
 
         Row {
             id: row
@@ -102,7 +103,8 @@ FocusScope {
                 font.pixelSize: StudioTheme.Values.baseFontSize
                 color: root.isShadow() ? StudioTheme.Values.themeTextSelectedTextColor
                                        : StudioTheme.Values.themeTextColor
-                text: root.value
+                text: root.isOperator() ? root.operatorModel.convertValueToName(root.value)
+                                        : root.value
                 anchors.verticalCenter: parent.verticalCenter
             }
 

share/qtcreator/qmldesigner/connectionseditor/SuggestionPopup.qml

@@ -3,6 +3,7 @@
 
 import QtQuick
 import QtQuick.Controls as Controls
+import HelperWidgets as HelperWidgets
 import StudioTheme as StudioTheme
 import StudioControls as StudioControls
 import ConnectionsEditorEditorBackend
@@ -20,6 +21,8 @@ Controls.Popup {
     signal exited(var value)
 
     property alias searchActive: search.activeFocus
+    property bool showOperators: false
+    property alias operatorModel: repeater.model
 
     function reset() {
         search.clear()
@@ -43,6 +46,7 @@ Controls.Popup {
         StudioControls.SearchBox {
             id: search
             width: parent.width
+            visible: !root.showOperators
 
             onSearchChanged: function(value) {
                 root.treeModel.setFilter(value)
@@ -51,12 +55,10 @@ Controls.Popup {
 
         Controls.StackView {
             id: stack
-
+            visible: !root.showOperators
             width: parent.width
             height: currentItem?.implicitHeight
-
             clip: true
-
             initialItem: mainView
         }
 
@@ -210,7 +212,7 @@ Controls.Popup {
         }
 
         Item {
-            visible: false
+            visible: root.showOperators
             width: stack.width
             height: flow.childrenRect.height + 2 * StudioTheme.Values.flowMargin
 
@@ -224,30 +226,38 @@ Controls.Popup {
                 Repeater {
                     id: repeater
 
-                    // TODO actual value + tooltip
-                    model: ["AND", "OR", "equal", "not equal", "greater", "less", "greater then", "less then"]
-
                     Rectangle {
-                        width: textItem.contentWidth + 14
-                        height: 26
+                        id: delegate
+
+                        required property int index
+
+                        required property string name
+                        required property string value
+                        required property string tooltip
+
+                        width: textItem.contentWidth + 2 * StudioTheme.Values.flowPillMargin
+                        height: StudioTheme.Values.flowPillHeight
                         color: "#161616"
-                        radius: 4
+                        radius: StudioTheme.Values.flowPillRadius
                         border {
                             color: "white"
                             width: mouseArea.containsMouse ? 1 : 0
                         }
 
-                        MouseArea {
+                        HelperWidgets.ToolTipArea {
                             id: mouseArea
                             hoverEnabled: true
                             anchors.fill: parent
+                            tooltip: delegate.tooltip
+
+                            onClicked: root.select(delegate.value)
                         }
 
                         Text {
                             id: textItem
-                            font.pixelSize: 12
-                            color: "white"
-                            text: modelData
+                            font.pixelSize: StudioTheme.Values.baseFontSize
+                            color: StudioTheme.Values.themeTextColor
+                            text: delegate.name
                             anchors.centerIn: parent
                         }
                     }

share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioTheme/Values.qml

@@ -243,6 +243,7 @@ QtObject {
     readonly property int flowSpacing: 7 // Odd so cursor has a center location
     readonly property int flowPillMargin: 4
     readonly property int flowPillHeight: 20
+    readonly property int flowPillRadius: 4
 
     // Theme Colors
 

src/plugins/qmldesigner/components/connectioneditor/connectionmodel.cpp

@@ -1774,6 +1774,19 @@ int ConditionListModel::errorIndex() const
     return m_errorIndex;
 }
 
+bool ConditionListModel::operatorAllowed(int cursorPosition)
+{
+    if (m_tokens.empty())
+        return false;
+
+    int tokenIdx = cursorPosition - 1;
+
+    if (tokenIdx >= 0 && m_tokens[tokenIdx].type != Operator)
+        return true;
+
+    return false;
+}
+
 void ConditionListModel::internalSetup()
 {
     setInvalid(tr("No Valid Condition"));

src/plugins/qmldesigner/components/connectioneditor/connectionmodel.h

@@ -146,6 +146,8 @@ public:
     QString error() const;
     int errorIndex() const;
 
+    Q_INVOKABLE bool operatorAllowed(int cursorPosition);
+
 signals:
     void validChanged();
     void emptyChanged();