[gnome-shell/wip/hadess/new-gnome-bluetooth: 1/2] status/bluetooth: Port to new GListModel API

[Bastien Nocera <hadess src gnome org>]

commit d56d17b1620d4370070602dd69c9b3a88864a2de
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Dec 2 11:44:47 2021 +0100

    status/bluetooth: Port to new GListModel API
    
    The GtkTreeView API was removed, and replaced with a GListModel API.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4748

 js/ui/environment.js      |  2 +-
 js/ui/status/bluetooth.js | 71 +++++++++++++++++++++--------------------------
 meson.build               |  2 +-
 3 files changed, 34 insertions(+), 41 deletions(-)
---
diff --git a/js/ui/environment.js b/js/ui/environment.js
index 67571152a6..dc9c5c9433 100644
--- a/js/ui/environment.js
+++ b/js/ui/environment.js
@@ -6,7 +6,7 @@ const Config = imports.misc.config;
 imports.gi.versions.Clutter = Config.LIBMUTTER_API_VERSION;
 imports.gi.versions.Gio = '2.0';
 imports.gi.versions.GdkPixbuf = '2.0';
-imports.gi.versions.GnomeBluetooth = '1.0';
+imports.gi.versions.GnomeBluetooth = '3.0';
 imports.gi.versions.GnomeDesktop = '3.0';
 imports.gi.versions.Gtk = '3.0';
 imports.gi.versions.GWeather = '4.0';
diff --git a/js/ui/status/bluetooth.js b/js/ui/status/bluetooth.js
index 98ccc3d314..3e49a5591d 100644
--- a/js/ui/status/bluetooth.js
+++ b/js/ui/status/bluetooth.js
@@ -53,10 +53,16 @@ class Indicator extends PanelMenu.SystemIndicator {
         this._adapter = null;
 
         this._client = new GnomeBluetooth.Client();
-        this._model = this._client.get_model();
-        this._model.connect('row-deleted', this._queueSync.bind(this));
-        this._model.connect('row-changed', this._queueSync.bind(this));
-        this._model.connect('row-inserted', this._sync.bind(this));
+        this._store = this._client.get_devices();
+        this._deviceNotifyConnected = [];
+        this._client.connect('device-removed', (c, path) => {
+            this._deviceNotifyConnected[path] = false;
+            this._queueSync.bind(this);
+        });
+        this._client.connect('device-added', (c, device) => {
+            this._connectDeviceNotify(device);
+            this._sync();
+        });
         Main.sessionMode.connect('updated', this._sync.bind(this));
         this._sync();
     }
@@ -70,42 +76,30 @@ class Indicator extends PanelMenu.SystemIndicator {
             HAD_BLUETOOTH_DEVICES_SETUP, this._hadSetupDevices);
     }
 
-    _getDefaultAdapter() {
-        let [ret, iter] = this._model.get_iter_first();
-        while (ret) {
-            let isDefault = this._model.get_value(iter,
-                                                  GnomeBluetooth.Column.DEFAULT);
-            let isPowered = this._model.get_value(iter,
-                                                  GnomeBluetooth.Column.POWERED);
-            if (isDefault && isPowered)
-                return iter;
-            ret = this._model.iter_next(iter);
-        }
-        return null;
+    _connectDeviceNotify(device) {
+        if (this._deviceNotifyConnected[device.get_object_path()] !== true)
+            return;
+        device.connect('notify::alias', this._queueSync.bind(this));
+        device.connect('notify::paired', this._queueSync.bind(this));
+        device.connect('notify::trusted', this._queueSync.bind(this));
+        device.connect('notify::connected', this._queueSync.bind(this));
+        this._deviceNotifyConnected.push([device.get_object_path(), true]);
     }
 
-    _getDeviceInfos(adapter) {
-        if (!adapter)
-            return [];
-
+    _getDeviceInfos() {
         let deviceInfos = [];
-        let [ret, iter] = this._model.iter_children(adapter);
-        while (ret) {
-            const isPaired = this._model.get_value(iter,
-                GnomeBluetooth.Column.PAIRED);
-            const isTrusted = this._model.get_value(iter,
-                GnomeBluetooth.Column.TRUSTED);
-
-            if (isPaired || isTrusted) {
+        const numDevices = this._store.get_n_items();
+
+        for (let i = 0; i < numDevices; i++) {
+            const device = this._store.get_item(i);
+
+            if (device.paired || device.trusted) {
                 deviceInfos.push({
-                    connected: this._model.get_value(iter,
-                        GnomeBluetooth.Column.CONNECTED),
-                    name: this._model.get_value(iter,
-                        GnomeBluetooth.Column.ALIAS),
+                    connected: device.connected,
+                    name: device.alias,
                 });
             }
-
-            ret = this._model.iter_next(iter);
+            this._connectDeviceNotify(device);
         }
 
         return deviceInfos;
@@ -122,14 +116,13 @@ class Indicator extends PanelMenu.SystemIndicator {
     }
 
     _sync() {
-        let adapter = this._getDefaultAdapter();
-        let devices = this._getDeviceInfos(adapter);
+        let devices = this._getDeviceInfos();
         const connectedDevices = devices.filter(dev => dev.connected);
         const nConnectedDevices = connectedDevices.length;
 
-        if (adapter && this._adapter)
+        if (this._client.default_adapter && this._adapter)
             this._setHadSetupDevices(devices.length > 0);
-        this._adapter = adapter;
+        this._adapter = this._client.default_adapter ?? null;
 
         let sensitive = !Main.sessionMode.isLocked && !Main.sessionMode.isGreeter;
 
@@ -148,7 +141,7 @@ class Indicator extends PanelMenu.SystemIndicator {
             this._item.label.text = ngettext('%d Connected', '%d Connected', 
nConnectedDevices).format(nConnectedDevices);
         else if (nConnectedDevices === 1)
             this._item.label.text = connectedDevices[0].name;
-        else if (adapter === null)
+        else if (this._adapter === null)
             this._item.label.text = _('Bluetooth Off');
         else
             this._item.label.text = _('Bluetooth On');
diff --git a/meson.build b/meson.build
index efdd7def15..9ae4ddef7e 100644
--- a/meson.build
+++ b/meson.build
@@ -93,7 +93,7 @@ x11_dep = dependency('x11')
 schemas_dep = dependency('gsettings-desktop-schemas', version: schemas_req)
 gnome_desktop_dep = dependency('gnome-desktop-3.0', version: gnome_desktop_req)
 
-bt_dep = dependency('gnome-bluetooth-1.0', version: bt_req, required: false)
+bt_dep = dependency('gnome-bluetooth-3.0', version: bt_req, required: false)
 gst_dep = dependency('gstreamer-1.0', version: gst_req, required: false)
 gst_base_dep = dependency('gstreamer-base-1.0', required: false)
 pipewire_dep = dependency('libpipewire-0.3', required: false)