History persistence for DebugConsole

src/python/backend.py

@@ -23,6 +23,7 @@ class Backend:
         self.saved_accounts = config_files.Accounts(self)
         self.ui_settings    = config_files.UISettings(self)
         self.ui_state       = config_files.UIState(self)
+        self.history        = config_files.History(self)
 
         self.models = ModelStore(allowed_key_types={
             Account,             # Logged-in accounts
@@ -139,9 +140,10 @@ class Backend:
         from .config_files import Theme
         settings = await self.ui_settings.read()
         ui_state = await self.ui_state.read()
+        history  = await self.history.read()
         theme    = await Theme(self, settings["theme"]).read()
 
-        return (settings, ui_state, theme)
+        return (settings, ui_state, history, theme)
 
 
     async def get_flat_sidepane_data(self) -> List[Dict[str, Any]]:

src/python/config_files.py

@@ -174,6 +174,19 @@ class UIState(JSONConfigFile):
         }
 
 
+@dataclass
+class History(JSONConfigFile):
+    filename: str = "history.json"
+
+    @property
+    def path(self) -> Path:
+        return Path(self.backend.app.appdirs.user_data_dir) / self.filename
+
+
+    async def default_data(self) -> JsonData:
+        return {"console": []}
+
+
 @dataclass
 class Theme(ConfigFile):
     @property

src/qml/DebugConsole.qml

@@ -19,9 +19,10 @@ HDrawer {
     property var target: null
     property alias t: debugConsole.target
 
-    property var history: []
+    property var history: window.history.console
     property alias his: debugConsole.history
     property int historyEntry: -1
+    property int maxHistoryLength: 5
 
     property string help: qsTr(
         `Javascript debugging console
@@ -67,7 +68,11 @@ HDrawer {
 
 
     function runJS(input) {
-        if (history.slice(-1)[0] !== input) history.push(input)
+        if (history.slice(-1)[0] !== input) {
+            history.push(input)
+            while (history.length > maxHistoryLength) history.shift()
+            window.historyChanged()
+        }
 
         let output = ""
         let error  = false

src/qml/Python.qml

@@ -83,9 +83,12 @@ Python {
     }
 
     function loadSettings(callback=null) {
-        return callCoro("load_settings", [], ([settings, uiState, theme]) => {
+        let func = "load_settings"
+
+        return callCoro(func, [], ([settings, uiState, history, theme]) => {
             window.settings = settings
             window.uiState  = uiState
+            window.history  = history
             window.theme    = Qt.createQmlObject(theme, window, "theme")
 
             if (callback) { callback(settings, uiState, theme) }

src/qml/Window.qml

@@ -36,6 +36,9 @@ ApplicationWindow {
     property var uiState: ({})
     onUiStateChanged: py.saveConfig("ui_state", uiState)
 
+    property var history: ({})
+    onHistoryChanged: py.saveConfig("history", history)
+
     property var theme: null
 
     readonly property alias py: py