Add basic JS/QML debug console

src/python/config_files.py

@@ -108,7 +108,8 @@ class UISettings(JSONConfigFile):
             "theme": "Default.qpl",
             "writeAliases": {},
             "keys": {
-                "startDebugger": "Alt+Shift+D",
+                "startPythonDebugger": "Alt+Shift+D",
+                "toggleDebugConsole":  "Alt+Shift+C",
                 "reloadConfig":        "Alt+Shift+R",
 
                 "scrollUp":       ["Alt+Up", "Alt+K"],

src/qml/DebugConsole.qml

@@ -0,0 +1,90 @@
+import QtQuick 2.12
+import QtQuick.Window 2.12
+import QtQuick.Layouts 1.12
+import "Base"
+
+Window {
+    title: qsTr("Debug console")
+    width: 640
+    height: 480
+    visible: false
+    flags: Qt.WA_TranslucentBackground
+    color: "transparent"
+
+
+    function runJS(input) {
+        let error = false
+
+        try {
+            var output = input.startsWith("j ") ?
+                         JSON.stringify(eval(input.substring(2)), null, 4) :
+                         String(eval(input))
+        } catch (err) {
+            error = true
+            var output = err.toString()
+        }
+
+        commandsView.model.insert(0, { input, output, error })
+    }
+
+
+    HColumnLayout {
+        anchors.fill: parent
+
+        HListView {
+            id: commandsView
+            spacing: theme.spacing
+            topMargin: theme.spacing
+            bottomMargin: topMargin
+            leftMargin: theme.spacing
+            rightMargin: rightMargin
+            clip: true
+            verticalLayoutDirection: ListView.BottomToTop
+
+            Layout.fillWidth: true
+            Layout.fillHeight: true
+
+            model: ListModel {}
+
+            delegate: HColumnLayout {
+                width: commandsView.width
+
+                HLabel {
+                    text: "> " + model.input
+                    wrapMode: Text.Wrap
+                    color: theme.chat.message.quote
+                    visible: model.input
+
+                    Layout.fillWidth: true
+                }
+
+                HLabel {
+                    text: "" + model.output
+                    wrapMode: Text.Wrap
+                    color: model.error ?
+                           theme.colors.errorText : theme.colors.text
+                    visible: model.output
+
+                    Layout.fillWidth: true
+                }
+            }
+
+            Rectangle {
+                z: -10
+                anchors.fill: parent
+                color: theme.colors.weakBackground
+            }
+        }
+
+        HTextField {
+            focus: true
+            onAccepted: if (text) runJS(text)
+            backgroundColor: Qt.hsla(0, 0, 0, 0.85)
+            bordered: false
+            placeholderText: qsTr("Type some JavaScript...")
+
+            Layout.fillWidth: true
+
+        }
+    }
+}

src/qml/Shortcuts.qml

@@ -9,10 +9,16 @@ HShortcutHandler {
 
     HShortcut {
         enabled: debugMode
-        sequences: settings.keys.startDebugger
+        sequences: settings.keys.startPythonDebugger
         onPressed: py.call("APP.pdb")
     }
 
+    HShortcut {
+        enabled: debugMode
+        sequences: settings.keys.toggleDebugConsole
+        onPressed: mainUI.debugConsole.visible = ! mainUI.debugConsole.visible
+    }
+
     HShortcut {
         sequences: settings.keys.reloadConfig
         onPressed: py.loadSettings(() => { mainUI.pressAnimation.start() })

src/qml/UI.qml

@@ -15,6 +15,7 @@ Item {
     property alias sidePane: sidePane
     property alias pageLoader: pageLoader
     property alias pressAnimation: pressAnimation
+    property alias debugConsole: debugConsoleLoader.item
 
     SequentialAnimation {
         id: pressAnimation
@@ -138,4 +139,9 @@ Item {
             }
         }
     }
+
+    HLoader {
+        id: debugConsoleLoader
+        source: debugMode ? "DebugConsole.qml" : ""
+    }
 }