Make the weather location and graphics device choosable

The last two values that could only be changed by editing a file.

Weather was pinned to hardcoded coordinates, so the card could not be
pointed anywhere else. It is a location search now, not latitude and
longitude fields: nobody knows their own coordinates, and a control that
demands them is one nobody uses. Open-Meteo's geocoding endpoint needs
no key, the same reason the forecast already uses them. Only the search
term leaves the machine -- the stored place name is a label -- and
coordinates are rounded to four decimals, far finer than a weather
reading resolves and coarse enough to keep a precise home location out
of the settings file.

The graphics readout was hardcoded to card1. This machine has two amdgpu
cards, discrete and integrated, so that was right only by luck, and the
path is meaningless on any other machine. GPUs are enumerated with a
readable name from lspci, since sysfs exposes only numeric ids, and the
picker appears only when there is more than one to choose between. A
stored path the machine does not have is refused and reported rather
than silently measuring nothing.

Also merges the per-application notification rules UI. Its three commits
were believed integrated but the page half was not actually in the tree:
main had the service side in Notifs.qml and zero references to
setAppRule in NotificationsPage. Ancestry is not content.

Claude-Session: https://claude.ai/code/session_01BRvzt4H8XXLPVH5MyYdk9L

config/dot/quickshell/modules/osd/OsdModel.js

@@ -0,0 +1,87 @@
+function clamp(value, minimum, maximum) {
+    return Math.max(minimum, Math.min(maximum, value));
+}
+
+function finiteNumber(value, fallback) {
+    var parsed = Number(value);
+    return isFinite(parsed) ? parsed : fallback;
+}
+
+function iconFor(kind, ratio) {
+    var name = String(kind || "").toLowerCase();
+    if (name === "volume-muted")
+        return "audio-volume-muted-symbolic";
+    if (name === "volume") {
+        if (ratio <= 0)
+            return "audio-volume-muted-symbolic";
+        if (ratio < 0.34)
+            return "audio-volume-low-symbolic";
+        if (ratio < 0.67)
+            return "audio-volume-medium-symbolic";
+        return "audio-volume-high-symbolic";
+    }
+    if (name === "microphone-muted")
+        return "microphone-sensitivity-muted-symbolic";
+    if (name === "microphone")
+        return "audio-input-microphone-symbolic";
+    if (name === "brightness")
+        return "display-brightness-symbolic";
+    if (name === "media-play" || name === "media-playing")
+        return "media-playback-start-symbolic";
+    if (name === "media-pause" || name === "media-paused")
+        return "media-playback-pause-symbolic";
+    if (name === "media-next")
+        return "media-skip-forward-symbolic";
+    if (name === "media-previous")
+        return "media-skip-backward-symbolic";
+    if (name === "media-stop")
+        return "media-playback-stop-symbolic";
+    return name || "dialog-information-symbolic";
+}
+
+function normalizedDuration(value) {
+    var parsed = finiteNumber(value, 1400);
+    return Math.max(0, Math.round(parsed));
+}
+
+function progressState(kind, rawValue, rawMaximum, rawLabel, rawDuration) {
+    var maximum = Math.max(1, finiteNumber(rawMaximum, 100));
+    var value = clamp(finiteNumber(rawValue, 0), 0, maximum);
+    var ratio = value / maximum;
+    var label = String(rawLabel || "");
+    if (!label)
+        label = Math.round(ratio * 100) + "%";
+
+    return {
+        kind: String(kind || ""),
+        value: value,
+        maximum: maximum,
+        ratio: ratio,
+        label: label,
+        icon: iconFor(kind, ratio),
+        duration: normalizedDuration(rawDuration),
+        progress: true
+    };
+}
+
+function messageState(kind, rawLabel, rawDuration) {
+    return {
+        kind: String(kind || ""),
+        value: 0,
+        maximum: 100,
+        ratio: 0,
+        label: String(rawLabel || ""),
+        icon: iconFor(kind, 0),
+        duration: normalizedDuration(rawDuration),
+        progress: false
+    };
+}
+
+if (typeof module !== "undefined") {
+    module.exports = {
+        clamp: clamp,
+        iconFor: iconFor,
+        progressState: progressState,
+        messageState: messageState
+    };
+}

config/dot/quickshell/modules/settings/AppearancePage.qml

@@ -103,7 +103,24 @@ SettingsPage {
 
         ToggleRow { setting: "showCpu" }
         ToggleRow { setting: "showMemory" }
-        ToggleRow { setting: "showGpu"; divider: false }
+        ToggleRow { setting: "showGpu"; divider: GraphicsDevices.devices.length > 1 || GraphicsDevices.selectionMissing }
+
+        // Only worth asking when there is a choice to make.
+        ChoiceGrid {
+            visible: GraphicsDevices.devices.length > 1 || GraphicsDevices.selectionMissing
+            width: parent.width
+            label: "Graphics device"
+            detail: GraphicsDevices.selectionMissing
+                ? "The stored device is not present on this machine, so the graphics readout is hidden. Choose one below."
+                : "Which GPU the graphics readout measures."
+            options: GraphicsDevices.devices.map(device => ({
+                value: device.path,
+                label: GraphicsDevices.shortName(device.name)
+            }))
+            current: GraphicsDevices.selectedPath
+            divider: false
+            onPicked: value => GraphicsDevices.select(value)
+        }
     }
 
     SettingsCard {

config/dot/quickshell/modules/settings/HomePage.qml

@@ -103,6 +103,16 @@ SettingsPage {
     SettingsCard {
         title: "Weather"
         subtitle: "Local conditions in the date menu"
+        TextRow {
+            label: "Location"
+            detail: "Only the search term is sent; the name below is a label kept on this machine"
+            value: Settings.weatherLocation
+        }
+
+        LocationPicker {
+            width: parent.width
+        }
+
         ChoiceRow { setting: "temperatureUnit" }
         SliderRow { setting: "weatherRefreshMinutes"; divider: false }
     }

config/dot/quickshell/modules/settings/LocationPicker.qml

@@ -0,0 +1,53 @@
+// Choosing where the weather reading is for.
+//
+// A search box rather than latitude and longitude fields: nobody knows their
+// own coordinates, and a control that demands them is one nobody ever uses. The
+// coordinates are what actually get stored -- the name is only a label.
+
+import QtQuick
+import qs.config
+import qs.services
+import qs.modules.clipboard
+
+Column {
+    id: root
+
+    spacing: 0
+
+    SearchField {
+        id: query
+        width: parent.width
+        placeholder: "Search for a town or city"
+        onTextChanged: Geocoding.search(query.text)
+    }
+
+    Repeater {
+        model: Geocoding.results
+
+        SettingRow {
+            id: place
+
+            required property var modelData
+            required property int index
+
+            label: place.modelData.name
+            detail: [place.modelData.admin, place.modelData.country].filter(part => !!part).join(", ")
+            value: place.modelData.latitude.toFixed(2) + ", " + place.modelData.longitude.toFixed(2)
+            controlWidth: 150
+            divider: place.index < Geocoding.results.length - 1
+            activatable: true
+            onActivated: {
+                if (Geocoding.choose(place.modelData))
+                    query.text = "";
+            }
+        }
+    }
+
+    SettingRow {
+        width: parent.width
+        visible: Geocoding.searching || Geocoding.lastError !== ""
+        label: Geocoding.searching ? "Searching…" : "No result"
+        detail: Geocoding.searching ? "" : Geocoding.lastError
+        divider: false
+    }
+}

config/dot/quickshell/modules/settings/qmldir

@@ -44,3 +44,4 @@ AudioBalance 1.0 AudioBalance.qml
 SoundDeviceList 1.0 SoundDeviceList.qml
 SoundDeviceRow 1.0 SoundDeviceRow.qml
 TimeOfDayRow 1.0 TimeOfDayRow.qml
+LocationPicker 1.0 LocationPicker.qml