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backend: Move out some code from post_init()

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meta_backend_real_post_init() had some open coded initialization with
some unexpected interdependencies. Split these up and move them to their
own functions in order to make meta_backend_real_post_init() a bit more
readable.

https://bugzilla.gnome.org/show_bug.cgi?id=782152
This commit is contained in:
Jonas Ådahl 2017-04-10 16:33:00 +08:00
parent 4b23eb064c
commit 755755a2f3
1 changed files with 58 additions and 27 deletions
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85
src/backends/meta-backend.c
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@ -45,6 +45,8 @@
#include "backends/meta-monitor-manager-dummy.h"
#include "ui/theme-private.h"
#define META_IDLE_MONITOR_CORE_DEVICE 0
enum
{
KEYMAP_CHANGED,
@ -245,6 +247,16 @@ destroy_device_monitor (MetaBackend *backend,
g_hash_table_remove (priv->device_monitors, &device_id);
}
static void
meta_backend_monitor_device (MetaBackend *backend,
ClutterInputDevice *device)
{
int device_id;
device_id = clutter_input_device_get_device_id (device);
create_device_monitor (backend, device_id);
}
static void
on_device_added (ClutterDeviceManager *device_manager,
ClutterInputDevice *device,
@ -352,10 +364,50 @@ create_monitor_manager (MetaBackend *backend)
return META_BACKEND_GET_CLASS (backend)->create_monitor_manager (backend);
}
static void
create_device_monitors (MetaBackend *backend,
ClutterDeviceManager *device_manager)
{
const GSList *devices;
const GSList *l;
create_device_monitor (backend, META_IDLE_MONITOR_CORE_DEVICE);
devices = clutter_device_manager_peek_devices (device_manager);
for (l = devices; l; l = l->next)
{
ClutterInputDevice *device = l->data;
meta_backend_monitor_device (backend, device);
}
}
static void
set_initial_pointer_visibility (MetaBackend *backend,
ClutterDeviceManager *device_manager)
{
MetaBackendPrivate *priv = meta_backend_get_instance_private (backend);
const GSList *devices;
const GSList *l;
gboolean has_touchscreen = FALSE;
devices = clutter_device_manager_peek_devices (device_manager);
for (l = devices; l; l = l->next)
{
ClutterInputDevice *device = l->data;
has_touchscreen |= device_is_slave_touchscreen (device);
}
meta_cursor_tracker_set_pointer_visible (priv->cursor_tracker,
!has_touchscreen);
}
static void
meta_backend_real_post_init (MetaBackend *backend)
{
MetaBackendPrivate *priv = meta_backend_get_instance_private (backend);
ClutterDeviceManager *device_manager = clutter_device_manager_get_default ();
priv->stage = meta_stage_new ();
clutter_actor_realize (priv->stage);
@ -373,35 +425,14 @@ meta_backend_real_post_init (MetaBackend *backend)
g_hash_table_new_full (g_int_hash, g_int_equal,
NULL, (GDestroyNotify) g_object_unref);
{
MetaCursorTracker *cursor_tracker;
ClutterDeviceManager *manager;
gboolean has_touchscreen = FALSE;
GSList *devices, *l;
create_device_monitors (backend, device_manager);
/* Create the core device monitor. */
create_device_monitor (backend, 0);
g_signal_connect_object (device_manager, "device-added",
G_CALLBACK (on_device_added), backend, 0);
g_signal_connect_object (device_manager, "device-removed",
G_CALLBACK (on_device_removed), backend, 0);
manager = clutter_device_manager_get_default ();
g_signal_connect_object (manager, "device-added",
G_CALLBACK (on_device_added), backend, 0);
g_signal_connect_object (manager, "device-removed",
G_CALLBACK (on_device_removed), backend, 0);
devices = clutter_device_manager_list_devices (manager);
for (l = devices; l != NULL; l = l->next)
{
ClutterInputDevice *device = l->data;
on_device_added (manager, device, backend);
has_touchscreen |= device_is_slave_touchscreen (device);
}
cursor_tracker = priv->cursor_tracker;
meta_cursor_tracker_set_pointer_visible (cursor_tracker, !has_touchscreen);
g_slist_free (devices);
}
set_initial_pointer_visibility (backend, device_manager);
priv->input_settings = meta_input_settings_create ();