added restapi

qml/Main.qml

@@ -16,6 +16,11 @@ Window {
 
     property bool darkMode: true
 
+    function hideSensorsIfDisabled() {
+        if (!settingsContainer.collectorEnabled && mainTabs.currentIndex > 0)
+            mainTabs.currentIndex = 0
+    }
+
     BackgroundLayer {
         id: bg
         anchors.fill: parent
@@ -30,7 +35,6 @@ Window {
             id: mainTabs
             Layout.fillWidth: true
             Layout.preferredHeight: 36
-            Layout.rightMargin: settingsBtn.width + 8
 
             background: Rectangle {
                 color: "#161628"
@@ -53,8 +57,10 @@ Window {
                 }
             }
             TabButton {
+                id: sensorsTabBtn
                 text: "Датчики"
-                width: implicitWidth
+                visible: settingsContainer.collectorEnabled
+                width: visible ? implicitWidth : 0
                 contentItem: Text {
                     text: parent.text
                     color: parent.checked ? "#ffffff" : "#aaaaaa"
@@ -163,34 +169,33 @@ Window {
         }
     }
 
-    // Settings gear (top-right)
-    Rectangle {
-        id: settingsBtn
+    // Hidden hotspot: double-tap the top-right corner to open settings.
+    MouseArea {
+        id: settingsHotspot
         anchors.right: parent.right
         anchors.top: parent.top
-        anchors.margins: 8
-        width: Math.max(40, parent.width / 14)
-        height: width
-        color: "transparent"
-        opacity: 0.85
-        z: 10
+        width: 72
+        height: 72
+        z: 20
+        onDoubleClicked: passwordDialog.open()
+    }
 
-        Rectangle {
-            anchors.fill: parent
-            radius: width / 2
-            color: root.darkMode ? "#40ffffff" : "#40000000"
-        }
+    Connections {
+        target: settingsContainer
+        onChanged: root.hideSensorsIfDisabled()
+    }
+    Component.onCompleted: hideSensorsIfDisabled()
 
-        Text {
-            anchors.centerIn: parent
-            text: "\u2699"
-            font.pixelSize: parent.width * 0.6
-            color: root.darkMode ? "white" : "black"
-        }
+    readonly property bool secureDialogOpen: passwordDialog.opened || settingsDialog.opened
+    onSecureDialogOpenChanged: uiIdle.active = secureDialogOpen
 
-        MouseArea {
-            anchors.fill: parent
-            onClicked: passwordDialog.open()
+    Connections {
+        target: uiIdle
+        onIdle: {
+            if (passwordDialog.opened)
+                passwordDialog.close()
+            if (settingsDialog.opened)
+                settingsDialog.close()
         }
     }
 
@@ -205,12 +210,50 @@ Window {
 
         contentItem: ColumnLayout {
             spacing: 8
-            TextField {
-                id: pwdField
+            Item {
                 Layout.fillWidth: true
-                placeholderText: "Введите пароль"
-                echoMode: TextInput.Password
-                onAccepted: passwordDialog.accept()
+                Layout.preferredHeight: 40
+
+                TextField {
+                    id: pwdField
+                    anchors.fill: parent
+                    placeholderText: "Введите пароль"
+                    echoMode: TextInput.Password
+                    selectByMouse: false
+                    onAccepted: passwordDialog.accept()
+                    onTextChanged: {
+                        passwordDialog.showLast = length > 0
+                        if (length === 0)
+                            maskTimer.stop()
+                        else
+                            maskTimer.restart()
+                        if (cursorPosition !== length)
+                            cursorPosition = length
+                    }
+                    onCursorPositionChanged: {
+                        if (cursorPosition !== length)
+                            cursorPosition = length
+                    }
+                }
+
+                Rectangle {
+                    visible: passwordDialog.showLast && pwdField.length > 0
+                    color: pwdField.palette.base
+                    readonly property real cell: Math.max(
+                        lastChar.implicitWidth,
+                        (pwdField.cursorRectangle.x - pwdField.leftPadding) / pwdField.length)
+                    x: pwdField.cursorRectangle.x - cell
+                    y: pwdField.cursorRectangle.y
+                    width: cell
+                    height: pwdField.cursorRectangle.height
+                    Text {
+                        id: lastChar
+                        anchors.centerIn: parent
+                        text: pwdField.text.charAt(pwdField.text.length - 1)
+                        font: pwdField.font
+                        color: pwdField.palette.text
+                    }
+                }
             }
             Text {
                 id: wrongPwd
@@ -221,8 +264,17 @@ Window {
             }
         }
 
+        property bool showLast: false
+
+        Timer {
+            id: maskTimer
+            interval: 1000
+            onTriggered: passwordDialog.showLast = false
+        }
+
         onOpened: {
             pwdField.text = ""
+            showLast = false
             wrongPwd.visible = false
             pwdField.forceActiveFocus()
         }