feat: launcher calculator

Requires libqalculate

modules/launcher/Actions.qml

@@ -10,7 +10,18 @@ import QtQuick
 Singleton {
     id: root
 
+    property string qalcResult
+
     readonly property list<Action> list: [
+        Action {
+            name: qsTr("Calculator")
+            desc: qsTr("Do simple math equations (powered by Qalc)")
+            icon: "calculate"
+
+            function onClicked(list: AppList): void {
+                root.autocomplete(list, "calc");
+            }
+        },
         Action {
             name: qsTr("Scheme")
             desc: qsTr("Change the current colour scheme")

modules/launcher/AppList.qml

@@ -14,11 +14,14 @@ ListView {
     required property PersistentProperties visibilities
 
     property bool isAction: search.text.startsWith(Config.launcher.actionPrefix)
+    property bool isCalc: search.text.startsWith(`${Config.launcher.actionPrefix}calc `)
     property bool isScheme: search.text.startsWith(`${Config.launcher.actionPrefix}scheme `)
     property bool isVariant: search.text.startsWith(`${Config.launcher.actionPrefix}variant `)
 
     function getModelValues() {
         let text = search.text;
+        if (isCalc)
+            return [0];
         if (isScheme)
             return Schemes.fuzzyQuery(text);
         if (isVariant)
@@ -49,6 +52,8 @@ ListView {
     }
 
     delegate: {
+        if (isCalc)
+            return calcItem;
         if (isScheme)
             return schemeItem;
         if (isVariant)
@@ -123,6 +128,14 @@ ListView {
         }
     }
 
+    Component {
+        id: calcItem
+
+        CalcItem {
+            list: root
+        }
+    }
+
     Component {
         id: schemeItem
 
@@ -143,6 +156,10 @@ ListView {
         ChangeAnim {}
     }
 
+    Behavior on isCalc {
+        ChangeAnim {}
+    }
+
     Behavior on isScheme {
         ChangeAnim {}
     }

modules/launcher/CalcItem.qml

@@ -0,0 +1,162 @@
+import "root:/widgets"
+import "root:/services"
+import "root:/config"
+import Quickshell
+import Quickshell.Io
+import QtQuick
+import QtQuick.Layouts
+
+Item {
+    id: root
+
+    required property var list
+    readonly property string math: list.search.text.slice(`${Config.launcher.actionPrefix}calc `.length)
+
+    function onClicked(): void {
+        Quickshell.execDetached(["sh", "-c", `qalc -t -m 100 '${root.math}' | wl-copy`]);
+        root.list.visibilities.launcher = false;
+    }
+
+    implicitHeight: Config.launcher.sizes.itemHeight
+
+    anchors.left: parent?.left
+    anchors.right: parent?.right
+
+    onMathChanged: {
+        if (math) {
+            qalcProc.command = ["qalc", "-m", "100", math];
+            qalcProc.running = true;
+        }
+    }
+
+    StateLayer {
+        radius: Appearance.rounding.full
+
+        function onClicked(): void {
+            root.onClicked();
+        }
+    }
+
+    Binding {
+        id: binding
+
+        when: root.math.length > 0
+        target: metrics
+        property: "text"
+    }
+
+    Process {
+        id: qalcProc
+
+        stdout: StdioCollector {
+            onStreamFinished: binding.value = text.trim()
+        }
+    }
+
+    RowLayout {
+        anchors.left: parent.left
+        anchors.right: parent.right
+        anchors.verticalCenter: parent.verticalCenter
+        anchors.margins: Appearance.padding.larger
+
+        spacing: Appearance.spacing.normal
+
+        MaterialIcon {
+            text: "function"
+            font.pointSize: Appearance.font.size.extraLarge
+            Layout.alignment: Qt.AlignVCenter
+        }
+
+        StyledText {
+            id: result
+
+            color: {
+                if (metrics.text.includes("error: "))
+                    return Colours.palette.m3error;
+                if (!root.math)
+                    return Colours.palette.m3onSurfaceVariant;
+                return Colours.palette.m3onSurface;
+            }
+
+            text: metrics.elidedText
+            font.pointSize: Appearance.font.size.normal
+
+            Layout.fillWidth: true
+            Layout.alignment: Qt.AlignVCenter
+
+            TextMetrics {
+                id: metrics
+
+                text: qsTr("Type an expression to calculate")
+                font.family: result.font.family
+                font.pointSize: result.font.pointSize
+                elide: Text.ElideRight
+                elideWidth: result.width
+            }
+        }
+
+        StyledRect {
+            color: Colours.palette.m3tertiary
+            radius: Appearance.rounding.normal
+            clip: true
+
+            implicitWidth: (stateLayer.containsMouse ? label.implicitWidth + label.anchors.rightMargin : 0) + icon.implicitWidth + Appearance.padding.normal * 2
+            implicitHeight: Math.max(label.implicitHeight, icon.implicitHeight) + Appearance.padding.small * 2
+
+            Layout.alignment: Qt.AlignVCenter
+
+            StateLayer {
+                id: stateLayer
+
+                color: Colours.palette.m3onTertiary
+
+                function onClicked(): void {
+                    Quickshell.execDetached(["app2unit", "--", "foot", "fish", "-C", `exec qalc -i '${root.math}'`]);
+                    root.list.visibilities.launcher = false;
+                }
+            }
+
+            StyledText {
+                id: label
+
+                anchors.verticalCenter: parent.verticalCenter
+                anchors.right: icon.left
+                anchors.rightMargin: Appearance.spacing.small
+
+                text: qsTr("Open in calculator")
+                color: Colours.palette.m3onTertiary
+                font.pointSize: Appearance.font.size.normal
+
+                opacity: stateLayer.containsMouse ? 1 : 0
+
+                Behavior on opacity {
+                    NumberAnimation {
+                        duration: Appearance.anim.durations.normal
+                        easing.type: Easing.BezierSpline
+                        easing.bezierCurve: Appearance.anim.curves.standard
+                    }
+                }
+            }
+
+            MaterialIcon {
+                id: icon
+
+                anchors.verticalCenter: parent.verticalCenter
+                anchors.right: parent.right
+                anchors.rightMargin: Appearance.padding.normal
+
+                text: "exit_to_app"
+                color: Colours.palette.m3onTertiary
+                font.pointSize: Appearance.font.size.large
+            }
+
+            Behavior on implicitWidth {
+                NumberAnimation {
+                    duration: Appearance.anim.durations.normal
+                    easing.type: Easing.BezierSpline
+                    easing.bezierCurve: Appearance.anim.curves.emphasized
+                }
+            }
+        }
+    }
+}

modules/launcher/Content.qml

@@ -86,7 +86,10 @@ Item {
                         Wallpapers.setWallpaper(currentItem.modelData.path);
                         root.visibilities.launcher = false;
                     } else if (text.startsWith(Config.launcher.actionPrefix)) {
-                        currentItem.modelData.onClicked(list.currentList);
+                        if (text.startsWith(`${Config.launcher.actionPrefix}calc `))
+                            currentItem.onClicked();
+                        else
+                            currentItem.modelData.onClicked(list.currentList);
                     } else {
                         Apps.launch(currentItem.modelData);
                         root.visibilities.launcher = false;