Unified API to save/restore state properties

src/qml/Base/HDrawer.qml

@@ -4,7 +4,6 @@ import "../utils.js" as Utils
 
 Drawer {
     id: drawer
-    objectName: ""  // Set one to allow storing the user size to a file
     implicitWidth: horizontal ? calculatedSize : parent.width
     implicitHeight: vertical ? calculatedSize : parent.height
 
@@ -25,14 +24,18 @@ Drawer {
     background: Rectangle { id: bg; color: theme.colors.strongBackground }
 
 
+    property string saveName: ""
+    property string saveId: ""
+    property var saveProperties: ["preferredSize"]
+
+    //
+
     property alias color: bg.color
 
     property int defaultSize: 300
 
     property int preferredSize:
-        window.uiState[objectName] ?
-        (window.uiState[objectName].size || defaultSize) :
-        defaultSize
+        window.getState(this, "preferredSize", defaultSize)
 
     property int minimumSize: resizeAreaSize
     property int maximumSize:
@@ -109,17 +112,7 @@ Drawer {
                         (drawer.edge === Qt.BottomEdge ? -mouseY : mouseY)
                 }
 
-            onReleased: {
-                if (! drawer.objectName) {
-                    console.warn("Can't save pane size, no objectName set")
-                    return
-                }
-
-                window.uiState[drawer.objectName] = {
-                    size: drawer.preferredSize,
-                }
-                window.uiStateChanged()
-            }
+            onReleased: window.saveState(drawer)
         }
     }
 }

src/qml/Base/HTextField.qml

@@ -3,7 +3,6 @@ import QtQuick.Controls 2.12
 
 TextField {
     id: field
-    objectName: ""  // Set one to allow remembering the text using a file
     selectByMouse: true
     leftPadding: theme.spacing
     rightPadding: leftPadding
@@ -32,13 +31,9 @@ TextField {
 
     // Set it only on component creation to avoid binding loops
     Component.onCompleted:
-        if (! text && uiState[objectName]) text = uiState[objectName].text
+        if (! text) text = window.getState(this, "text", "")
 
-    onTextChanged: {
-        if (! objectName) return
-        window.uiState[objectName] = {text}
-        window.uiStateChanged()
-    }
+    onTextChanged: window.saveState(this)
 
     Keys.onPressed: if (
         event.modifiers & Qt.AltModifier ||
@@ -46,6 +41,10 @@ TextField {
     ) event.accepted = true  // XXX Still needed?
 
 
+    property string saveName: ""
+    property string saveId: ""
+    property var saveProperties: ["text"]
+
     property bool error: false
 
     property alias radius: textFieldBackground.radius

src/qml/Chat/RoomPane/MemberView.qml

@@ -47,7 +47,9 @@ HColumnLayout {
 
         HTextField {
             id: filterField
-            objectName: "memberFilterField"
+            saveName: "memberFilterField"
+            saveId: chat.roomId
+
             placeholderText: qsTr("Filter members")
             backgroundColor: theme.chat.roomPane.filterMembers.background
             bordered: false

src/qml/Chat/RoomPane/RoomPane.qml

@@ -4,7 +4,8 @@ import "../../Base"
 
 HDrawer {
     id: roomPane
-    objectName: "roomPane"
+    saveName: "roomPane"
+
     edge: Qt.RightEdge
     defaultSize: buttonRepeater.childrenImplicitWidth
     minimumSize:

src/qml/MainPane/MainPane.qml

@@ -5,7 +5,7 @@ import "../utils.js" as Utils
 
 HDrawer {
     id: mainPane
-    objectName: "mainPane"
+    saveName: "mainPane"
     color: theme.mainPane.background
     minimumSize: theme.controls.avatar.size + theme.spacing * 2
 

src/qml/MainPane/MainPaneToolBar.qml

@@ -22,7 +22,8 @@ HRowLayout {
 
     HTextField {
         id: filterField
-        objectName: "roomFilterField"
+        saveName: "roomFilterField"
+
         placeholderText: qsTr("Filter rooms")
         backgroundColor: theme.mainPane.filterRooms.background
         bordered: false

src/qml/Window.qml

@@ -1,6 +1,7 @@
 import QtQuick 2.12
 import QtQuick.Controls 2.12
 import "Base"
+import "utils.js" as Utils
 
 ApplicationWindow {
     id: window
@@ -44,6 +45,32 @@ ApplicationWindow {
     readonly property alias py: py
 
 
+    function saveState(obj) {
+        if (! obj.saveName || ! obj.saveProperties ||
+            obj.saveProperties.length < 1) return
+
+        let propertyValues = {}
+
+        for (let prop of obj.saveProperties) {
+            propertyValues[prop] = obj[prop]
+        }
+
+        Utils.objectUpdateRecursive(uiState, {
+            [obj.saveName]: { [obj.saveId || "ALL"]: propertyValues },
+        })
+
+        uiStateChanged()
+    }
+
+    function getState(obj, property, defaultValue=undefined) {
+        try {
+            return uiState[obj.saveName][obj.saveId || "ALL"][property]
+        } catch(err) {
+            return defaultValue
+        }
+    }
+
+
     Python { id: py }
 
     HoverHandler { id: windowHover }

src/qml/utils.js

@@ -52,6 +52,18 @@ function isEmptyObject(obj) {
 }
 
 
+function objectUpdateRecursive(current, update) {
+    for (const key of Object.keys(update)) {
+        if ((key in current) && typeof(current[key]) === "object" &&
+                typeof(update[key]) === "object") {
+            objectUpdateRecursive(current[key], update[key])
+        } else {
+            current[key] = update[key]
+        }
+    }
+}
+
+
 function numberWrapAt(num, max) {
     return num < 0 ? max + (num % max) : (num % max)
 }