library: Add location entry

src/Library/demos/Location/main.blp

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+using Gtk 4.0;
+using Adw 1;
+
+Adw.StatusPage {
+  title: _("Location");
+  description: _("Request the user location");
+  margin-top: 48;
+
+  Adw.Clamp {
+    maximum-size: 480;
+
+    Box {
+      orientation: vertical;
+      halign: center;
+
+      ListBox {
+        selection-mode: none;
+        margin-bottom: 18;
+
+        styles ["boxed-list"]
+
+        Adw.ActionRow {
+          title: _("Distance Threshold");
+          subtitle: _("In meters");
+
+          SpinButton distance_threshold {
+            valign: center;
+            wrap: true;
+            value: 0;
+            climb-rate: 1;
+            adjustment: Adjustment {
+              lower: 0;
+              upper: 100;
+              step-increment: 1;
+              value: 0;
+            };
+          }
+        }
+
+        Adw.ActionRow {
+          title: _("Time Threshold");
+          subtitle: _("In meters");
+
+          SpinButton time_threshold {
+            valign: center;
+            wrap: true;
+            value: 0;
+            climb-rate: 1;
+            adjustment: Adjustment {
+                          lower: 0;
+                          upper: 100;
+                          step-increment: 1;
+                          value: 0;
+                        };
+          }
+        }
+
+        Adw.ComboRow accuracy_button {
+          title: _("Accuracy");
+          model: Gtk.StringList {
+            strings [C_("Accuracy", "Exact"), C_("Accuracy", "Street"), C_("Accuracy", "Neighborhood"), C_("Accuracy", "City"), C_("Accuracy", "Country"), C_("Accuracy", "None")]
+          };
+        }
+      }
+
+      Box {
+        halign: center;
+        spacing: 30;
+        margin-bottom: 24;
+
+        Button start {
+          label: _("Start Session");
+          halign: center;
+          styles ["suggested-action", "pill"]
+        }
+
+        Button close {
+          label: _("Close Session");
+          halign: center;
+          sensitive: false;
+          styles ["destructive-action", "pill"]
+        }
+      }
+
+      Revealer revealer {
+        transition-duration: 300;
+        transition-type: slide_up;
+
+        ListBox {
+          selection-mode: none;
+          margin-bottom: 18;
+
+          styles ["boxed-list"]
+
+          Adw.ActionRow {
+            title: _("Latitude");
+            subtitle: _("In degrees");
+
+            Label latitude {
+              label: _("N/A");
+            }
+          }
+
+          Adw.ActionRow {
+            title: _("Longitude");
+            subtitle: _("In degrees");
+
+            Label longitude {
+              label: _("N/A");
+            }
+          }
+
+          Adw.ActionRow {
+            title: _("Accuracy");
+            subtitle: _("In meters");
+
+            Label accuracy {
+              label: _("N/A");
+            }
+          }
+
+          Adw.ActionRow {
+            title: _("Altitude");
+            subtitle: _("In meters");
+
+            Label altitude {
+              label: _("N/A");
+            }
+          }
+
+          Adw.ActionRow {
+            title: _("Speed");
+            subtitle: _("In meters per second");
+
+            Label speed {
+              label: _("N/A");
+            }
+          }
+
+          Adw.ActionRow {
+            title: _("Heading");
+            subtitle: _("In degrees, clockwise");
+
+            Label heading {
+              label: _("N/A");
+            }
+          }
+
+          Adw.ActionRow {
+            title: _("Description");
+
+            Label description {
+              label: _("N/A");
+            }
+          }
+
+          Adw.ActionRow {
+            title: _("Timestamp");
+
+            Label timestamp {
+              label: _("N/A");
+            }
+          }
+        }
+      }
+
+      LinkButton {
+        label: "API Reference";
+        uri: "https://libportal.org/method.Portal.location_monitor_start.html";
+      }
+    }
+  }
+}
+
+
+
+

src/Library/demos/Location/main.js

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+import Xdp from "gi://Xdp";
+import XdpGtk from "gi://XdpGtk4";
+import Gio from "gi://Gio";
+import Gdk from "gi://Gdk";
+import Gtk from "gi://Gtk";
+import Adw from "gi://Adw";
+
+Gio._promisify(
+  Xdp.Portal.prototype,
+  "location_monitor_start",
+  "location_monitor_start_finish",
+);
+
+const portal = new Xdp.Portal();
+const parent = XdpGtk.parent_new_gtk(workbench.window);
+
+const revealer = workbench.builder.get_object("revealer");
+const start = workbench.builder.get_object("start");
+const close = workbench.builder.get_object("close");
+const distance_threshold = workbench.builder.get_object("distance_threshold");
+const time_threshold = workbench.builder.get_object("time_threshold");
+const accuracy_button = workbench.builder.get_object("accuracy_button");
+
+const latitude_label = workbench.builder.get_object("latitude");
+const longitude_label = workbench.builder.get_object("longitude");
+const accuracy_label = workbench.builder.get_object("accuracy");
+const altitude_label = workbench.builder.get_object("altitude");
+const speed_label = workbench.builder.get_object("speed");
+const heading_label = workbench.builder.get_object("heading");
+const description_label = workbench.builder.get_object("description");
+const timestamp_label = workbench.builder.get_object("timestamp");
+
+let locationAccuracy = Xdp.LocationAccuracy.Exact;
+let distanceThreshold = distance_threshold.value;
+let timeThreshold = time_threshold.value;
+
+time_threshold.connect("value-changed", () => {
+  portal.location_monitor_stop();
+  revealer.reveal_child = false;
+  timeThreshold = time_threshold.value;
+  console.log("Time threshold changed");
+  startSession();
+});
+
+distance_threshold.connect("value-changed", () => {
+  portal.location_monitor_stop();
+  revealer.reveal_child = false;
+  distanceThreshold = distance_threshold.value;
+  console.log("Distance threshold changed");
+  startSession();
+});
+
+accuracy_button.connect("notify::selected-item", () => {
+  console.log("Accuracy changed");
+  portal.location_monitor_stop();
+  revealer.reveal_child = false;
+  const accuracy_flag = accuracy_button.selected_item.get_string();
+  locationAccuracy = Xdp.LocationAccuracy[accuracy_flag];
+  startSession();
+});
+
+async function startSession() {
+  start.sensitive = false;
+  close.sensitive = true;
+  const result = await portal.location_monitor_start(
+    parent,
+    distanceThreshold,
+    timeThreshold,
+    locationAccuracy,
+    Xdp.LocationMonitorFlags.NONE,
+    null,
+  );
+  if (result === true) {
+    console.log("Location access granted");
+    revealer.reveal_child = true;
+  } else {
+    console.log("Error retrieving location");
+  }
+}
+
+portal.connect(
+  "location-updated",
+  (
+    portal,
+    latitude,
+    longitude,
+    altitude,
+    accuracy,
+    speed,
+    heading,
+    description,
+    timestamp_s,
+  ) => {
+    latitude_label.label = latitude.toString();
+    longitude_label.label = longitude.toString();
+    accuracy_label.label = accuracy.toString();
+    altitude_label.label = altitude.toString();
+    speed_label.label = speed.toString();
+    heading_label.label = heading.toString();
+    description_label.label = description.toString();
+
+    const timestamp = new Date(timestamp_s * 1000); // Convert UNIX timestamp to milliseconds
+    const formattedTimestamp = timestamp.toLocaleString(); // Convert timestamp to local date and time string
+    timestamp_label.label = formattedTimestamp;
+  },
+);
+
+start.connect("clicked", () => {
+  startSession().catch(logError);
+});
+
+close.connect("clicked", () => {
+  start.sensitive = true;
+  close.sensitive = false;
+  portal.location_monitor_stop();
+  revealer.reveal_child = false;
+  console.log("Session closed");
+});

src/Library/demos/Location/main.json

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+{
+  "name": "Location",
+  "category": "platform",
+  "description": "Request the user location",
+  "panels": ["code", "preview"],
+  "autorun": true
+}