fix ReferenceError: campi ricerca fuori dall'header della lista (scope chiuso)

qml/pages/MainPage.qml

@@ -7,50 +7,58 @@ Page {
 
     property var customPorts: []   // porti creati dalla ricerca libera (sessione)
 
+    // Campi di ricerca FUORI dal header della lista: gli id dichiarati nel
+    // componente header hanno scope chiuso e le funzioni del Page non li
+    // vedono (ReferenceError "filter is not defined").
+    Column {
+        id: topCol
+        width: parent.width
+
+        PageHeader { title: "Tide" }
+
+        SearchField {
+            id: filter
+            placeholderText: qsTr("Filter ports…")
+            onTextChanged: rebuild()
+        }
+
+        Item { width: parent.width; height: Theme.paddingMedium }
+
+        TextField {
+            id: geoField
+            width: parent.width - 2 * Theme.horizontalPageMargin
+            anchors.horizontalCenter: parent.horizontalCenter
+            placeholderText: qsTr("Free search: any city (online)…")
+            EnterKey.enabled: text.length > 0
+            EnterKey.onClicked: findCity()
+        }
+
+        Button {
+            text: qsTr("Find")
+            anchors.horizontalCenter: parent.horizontalCenter
+            onClicked: findCity()
+        }
+
+        Label {
+            id: geoMsg
+            visible: false
+            width: parent.width - 2 * Theme.horizontalPageMargin
+            anchors.horizontalCenter: parent.horizontalCenter
+            wrapMode: Text.Wrap
+            color: Theme.errorColor
+            font.pixelSize: Theme.fontSizeSmall
+        }
+    }
+
     SilicaListView {
         id: list
-        anchors.fill: parent
+        anchors.top: topCol.bottom
+        anchors.left: parent.left
+        anchors.right: parent.right
+        anchors.bottom: parent.bottom
         model: ListModel { id: portModel }
 
-        header: Column {
-            width: parent.width
-            PageHeader { title: "Tide" }
-
-            SearchField {
-                id: filter
-                placeholderText: qsTr("Filter ports…")
-                onTextChanged: rebuild()
-            }
-
-            Item { width: parent.width; height: Theme.paddingMedium }
-
-            TextField {
-                id: geoField
-                width: parent.width - 2 * Theme.horizontalPageMargin
-                anchors.horizontalCenter: parent.horizontalCenter
-                placeholderText: qsTr("Free search: any city (online)…")
-                EnterKey.enabled: text.length > 0
-                EnterKey.onClicked: findCity()
-            }
-
-            Button {
-                text: qsTr("Find")
-                anchors.horizontalCenter: parent.horizontalCenter
-                onClicked: findCity()
-            }
-
-            Label {
-                id: geoMsg
-                visible: false
-                width: parent.width - 2 * Theme.horizontalPageMargin
-                anchors.horizontalCenter: parent.horizontalCenter
-                wrapMode: Text.Wrap
-                color: Theme.errorColor
-                font.pixelSize: Theme.fontSizeSmall
-            }
-
-            SectionHeader { text: qsTr("Ports") }
-        }
+        header: SectionHeader { text: qsTr("Ports") }
 
         delegate: ListItem {
             contentHeight: Theme.itemSizeMedium
@@ -84,8 +92,8 @@ Page {
                 anchors.verticalCenter: parent.verticalCenter
             }
             onClicked: {
-                pageStack.push(Qt.resolvedUrl("DetailPage.qml"),
-                               { port: model.port, portIndex: model.realIndex, custom: model.custom })
+                page.pageStack.push(Qt.resolvedUrl("DetailPage.qml"),
+                                    { port: model.port, portIndex: model.realIndex, custom: model.custom })
             }
         }
 
@@ -125,6 +133,7 @@ Page {
     function geoFail() {
         geoMsg.text = qsTr("City not found (offline and not in local dataset).")
         geoMsg.visible = true
+        geoMsg.color = Theme.errorColor
     }
 
     function geoFound(name, lat, lon, src) {
@@ -144,8 +153,8 @@ Page {
         geoMsg.text = qsTr("Found %1 (via %2)").arg(name).arg(src)
         geoMsg.visible = true
         geoMsg.color = Theme.highlightColor
-        pageStack.push(Qt.resolvedUrl("DetailPage.qml"),
-                       { port: port, portIndex: -1, custom: true })
+        page.pageStack.push(Qt.resolvedUrl("DetailPage.qml"),
+                            { port: port, portIndex: -1, custom: true })
     }
 
     function geoXhr(query, cb) {
@@ -199,8 +208,8 @@ Page {
         if (pref !== "") {
             for (var i = 0; i < Tides.PORTS.length; i++) {
                 if (Tides.PORTS[i][0] === pref) {
-                    pageStack.push(Qt.resolvedUrl("DetailPage.qml"),
-                                   { port: Tides.PORTS[i], portIndex: i, custom: false })
+                    page.pageStack.push(Qt.resolvedUrl("DetailPage.qml"),
+                                        { port: Tides.PORTS[i], portIndex: i, custom: false })
                     break
                 }
             }