Add PhoshBtInfo

A small widget to display the bluetooth status

Signed-off-by: Guido Günther <guido.gunther@puri.sm>

docs/phosh-docs.xml

@@ -42,6 +42,7 @@
       <xi:include href="xml/background.xml"/>
       <xi:include href="xml/batteryinfo.xml"/>
       <xi:include href="xml/bt-manager.xml"/>
+      <xi:include href="xml/bt-info.xml"/>
       <xi:include href="xml/connectivity-info.xml"/>
       <xi:include href="xml/fader.xml"/>
       <xi:include href="xml/favorite-list-model.xml"/>

po/POTFILES.in

@@ -9,6 +9,7 @@ src/auth.c
 src/background.c
 src/background-manager.c
 src/batteryinfo.c
+src/bt-info.c
 src/fader.c
 src/favorite-list-model.c
 src/feedbackinfo.c

src/bt-info.c

+/*
+ * Copyright (C) 2019 Purism SPC
+ * SPDX-License-Identifier: GPL-3.0+
+ * Author: Guido Günther <agx@sigxcpu.org>
+ */
+
+/* Bt Info widget */
+
+#define G_LOG_DOMAIN "phosh-bt-info"
+
+#include "config.h"
+
+#include "shell.h"
+#include "bt-info.h"
+#include "bt-manager.h"
+
+/**
+ * SECTION:bt-info
+ * @short_description: A widget to display the bluetooth status
+ * @Title: PhoshBtInfo
+ *
+ * #PhoshBtInfo displays the current bluetooth status based on information
+ * from #PhoshBtManager. To figure out if the widget should be shown
+ * the #PhoshBtInfo::enabled property can be useful.
+ */
+
+enum {
+  PROP_0,
+  PROP_ENABLED,
+  PROP_PRESENT,
+  PROP_LAST_PROP
+};
+static GParamSpec *props[PROP_LAST_PROP];
+
+struct _PhoshBtInfo {
+  PhoshStatusIcon parent;
+
+  gboolean        enabled;
+  gboolean        present;
+  PhoshBtManager *bt;
+};
+G_DEFINE_TYPE (PhoshBtInfo, phosh_bt_info, PHOSH_TYPE_STATUS_ICON);
+
+static void
+phosh_bt_info_get_property (GObject    *object,
+                            guint       property_id,
+                            GValue     *value,
+                            GParamSpec *pspec)
+{
+  PhoshBtInfo *self = PHOSH_BT_INFO (object);
+
+  switch (property_id) {
+  case PROP_ENABLED:
+    g_value_set_boolean (value, self->enabled);
+    break;
+  case PROP_PRESENT:
+    g_value_set_boolean (value, self->present);
+    break;
+  default:
+    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+    break;
+  }
+}
+
+static void
+update_icon (PhoshBtInfo *self, GParamSpec *pspec, PhoshBtManager *bt)
+{
+  const gchar *icon_name;
+
+  g_return_if_fail (PHOSH_IS_BT_INFO (self));
+  g_return_if_fail (PHOSH_IS_BT_MANAGER (bt));
+
+  icon_name = phosh_bt_manager_get_icon_name (bt);
+  g_debug ("Updating bt icon to %s", icon_name);
+  if (icon_name)
+    phosh_status_icon_set_icon_name (PHOSH_STATUS_ICON (self), icon_name);
+}
+
+static void
+update_info (PhoshBtInfo *self)
+{
+  gboolean enabled;
+
+  g_return_if_fail (PHOSH_IS_BT_INFO (self));
+
+  /* TODO: show number of paired devices */
+  enabled = phosh_bt_manager_get_enabled (self->bt);
+  if (enabled)
+    phosh_status_icon_set_info (PHOSH_STATUS_ICON (self), _("On"));
+  else
+    phosh_status_icon_set_info (PHOSH_STATUS_ICON (self), _("Bluetooth"));
+}
+
+static void
+on_bt_enabled (PhoshBtInfo *self, GParamSpec *pspec, PhoshBtManager *bt)
+{
+  gboolean enabled;
+
+  g_return_if_fail (PHOSH_IS_BT_INFO (self));
+  g_return_if_fail (PHOSH_IS_BT_MANAGER (bt));
+
+  enabled = phosh_bt_manager_get_enabled (bt);
+  g_debug ("Updating bt enabled %d", enabled);
+  if (self->enabled == enabled)
+    return;
+
+  self->enabled = enabled;
+  g_object_notify_by_pspec (G_OBJECT (self), props[PROP_ENABLED]);
+}
+
+static void
+on_bt_present (PhoshBtInfo *self, GParamSpec *pspec, PhoshBtManager *bt)
+{
+  gboolean present;
+
+  g_return_if_fail (PHOSH_IS_BT_INFO (self));
+  g_return_if_fail (PHOSH_IS_BT_MANAGER (bt));
+
+  present = phosh_bt_manager_get_present (bt);
+  if (self->present == present)
+    return;
+
+  self->present = present;
+  g_object_notify_by_pspec (G_OBJECT (self), props[PROP_PRESENT]);
+}
+
+
+static gboolean
+on_idle (PhoshBtInfo *self)
+{
+  update_icon (self, NULL, self->bt);
+  update_info (self);
+  on_bt_enabled (self, NULL, self->bt);
+  return G_SOURCE_REMOVE;
+}
+
+
+static void
+phosh_bt_info_constructed (GObject *object)
+{
+  PhoshBtInfo *self = PHOSH_BT_INFO (object);
+  PhoshShell *shell;
+
+  G_OBJECT_CLASS (phosh_bt_info_parent_class)->constructed (object);
+
+  shell = phosh_shell_get_default ();
+  self->bt = g_object_ref (phosh_shell_get_bt_manager (shell));
+
+  if (self->bt == NULL) {
+    g_warning ("Failed to get bt manager");
+    return;
+  }
+
+  g_signal_connect_swapped (self->bt,
+                            "notify::icon-name",
+                            G_CALLBACK (update_icon),
+                            self);
+
+  /* TODO: track number of BT devices */
+  g_signal_connect_swapped (self->bt,
+                            "notify::enabled",
+                            G_CALLBACK (update_info),
+                            self);
+
+  /* We don't use a binding for self->enabled so we can keep
+     the property r/o */
+  g_signal_connect_swapped (self->bt,
+                            "notify::enabled",
+                            G_CALLBACK (on_bt_enabled),
+                            self);
+  g_signal_connect_swapped (self->bt,
+                            "notify::present",
+                            G_CALLBACK (on_bt_present),
+                            self);
+
+  g_idle_add ((GSourceFunc) on_idle, self);
+}
+
+
+static void
+phosh_bt_info_dispose (GObject *object)
+{
+  PhoshBtInfo *self = PHOSH_BT_INFO (object);
+
+  if (self->bt) {
+    g_signal_handlers_disconnect_by_data (self->bt, self);
+    g_clear_object (&self->bt);
+  }
+
+  G_OBJECT_CLASS (phosh_bt_info_parent_class)->dispose (object);
+}
+
+
+static void
+phosh_bt_info_class_init (PhoshBtInfoClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->constructed = phosh_bt_info_constructed;
+  object_class->dispose = phosh_bt_info_dispose;
+  object_class->get_property = phosh_bt_info_get_property;
+
+  props[PROP_ENABLED] =
+    g_param_spec_boolean ("enabled",
+                          "enabled",
+                          "Whether a bt device is enabled",
+                          FALSE,
+                          G_PARAM_READABLE |
+                          G_PARAM_STATIC_STRINGS |
+                          G_PARAM_EXPLICIT_NOTIFY);
+  props[PROP_PRESENT] =
+    g_param_spec_boolean ("present",
+                          "Present",
+                          "Whether bt hardware is present",
+                          FALSE,
+                          G_PARAM_READABLE |
+                          G_PARAM_STATIC_STRINGS |
+                          G_PARAM_EXPLICIT_NOTIFY);
+
+  g_object_class_install_properties (object_class, PROP_LAST_PROP, props);
+}
+
+
+static void
+phosh_bt_info_init (PhoshBtInfo *self)
+{
+}
+
+
+GtkWidget *
+phosh_bt_info_new (void)
+{
+  return g_object_new (PHOSH_TYPE_BT_INFO, NULL);
+}

src/bt-info.h

+/*
+ * Copyright (C) 2020 Purism SPC
+ *
+ * SPDX-License-Identifier: GPL-3.0+
+ */
+
+#pragma once
+
+#include <gtk/gtk.h>
+#include "status-icon.h"
+
+G_BEGIN_DECLS
+
+#define PHOSH_TYPE_BT_INFO (phosh_bt_info_get_type ())
+
+G_DECLARE_FINAL_TYPE (PhoshBtInfo, phosh_bt_info, PHOSH, BT_INFO, PhoshStatusIcon)
+
+GtkWidget * phosh_bt_info_new (void);
+
+G_END_DECLS

src/meson.build

@@ -88,6 +88,8 @@ libphosh_sources = [
   'background-manager.h',
   'batteryinfo.c',
   'batteryinfo.h',
+  'bt-info.c',
+  'bt-info.h',
   'bt-manager.c',
   'bt-manager.h',
   'contrib/shell-network-agent.c',