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lib: use mouse-set from peer to update local position

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We may need to tweak this for relative mouse positions if we find we dont
get reliable information from the peer. But this is a start, which I see
we get back from Qemu at least when we're in -enable-kvm mode.
This commit is contained in:
Christian Hergert 2023-02-15 12:16:47 -08:00
parent 03f64892e5
commit 0a7c1ff21c
3 changed files with 59 additions and 9 deletions
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30
lib/mks-display.c
View File

@ -44,6 +44,7 @@ typedef struct
gulong invalidate_contents_handler;
gulong invalidate_size_handler;
gulong notify_cursor_handler;
gulong mouse_set_handler;
/* Tracking the last known positions of mouse events so that we may
* do something "reasonable" if the pointer is not absolute.
@ -133,6 +134,21 @@ mks_display_notify_cursor_cb (MksDisplay *self,
gtk_widget_set_cursor (GTK_WIDGET (self), cursor);
}
static void
mks_display_mouse_set_cb (MksDisplay *self,
int x,
int y,
MksPaintable *paintable)
{
MksDisplayPrivate *priv = mks_display_get_instance_private (self);
g_assert (MKS_IS_DISPLAY (self));
g_assert (MKS_IS_PAINTABLE (paintable));
priv->last_mouse_x = x;
priv->last_mouse_y = y;
}
static void
mks_display_set_paintable (MksDisplay *self,
GdkPaintable *paintable)
@ -150,6 +166,7 @@ mks_display_set_paintable (MksDisplay *self,
g_clear_signal_handler (&priv->invalidate_contents_handler, priv->paintable);
g_clear_signal_handler (&priv->invalidate_size_handler, priv->paintable);
g_clear_signal_handler (&priv->notify_cursor_handler, priv->paintable);
g_clear_signal_handler (&priv->mouse_set_handler, priv->paintable);
g_clear_object (&priv->paintable);
}
@ -174,6 +191,12 @@ mks_display_set_paintable (MksDisplay *self,
G_CALLBACK (mks_display_notify_cursor_cb),
self,
G_CONNECT_SWAPPED);
priv->notify_cursor_handler =
g_signal_connect_object (paintable,
"mouse-set",
G_CALLBACK (mks_display_mouse_set_cb),
self,
G_CONNECT_SWAPPED);
}
g_object_notify_by_pspec (G_OBJECT (self), properties [PROP_PAINTABLE]);
@ -388,11 +411,8 @@ mks_display_legacy_event_cb (MksDisplay *self,
if (gdk_event_get_axis (event, GDK_AXIS_X, &x) &&
gdk_event_get_axis (event, GDK_AXIS_Y, &y))
{
double delta_x = floor (x - priv->last_mouse_x) / area.size.width * guest_width;
double delta_y = floor (y - priv->last_mouse_y) / area.size.height * guest_height;
priv->last_mouse_x = x;
priv->last_mouse_y = y;
double delta_x = priv->last_mouse_x - (x / area.size.width) * guest_width;
double delta_y = priv->last_mouse_y - (y / area.size.height) * guest_height;
mks_mouse_move_by (mouse,
delta_x,

11
lib/mks-paintable-private.h
View File

@ -29,9 +29,12 @@ G_BEGIN_DECLS
G_DECLARE_FINAL_TYPE (MksPaintable, mks_paintable, MKS, PAINTABLE, GObject)
GdkPaintable *_mks_paintable_new (GCancellable *cancellable,
int *peer_fd,
GError **error);
GdkCursor *_mks_paintable_get_cursor (MksPaintable *self);
GdkPaintable *_mks_paintable_new (GCancellable *cancellable,
int *peer_fd,
GError **error);
GdkCursor *_mks_paintable_get_cursor (MksPaintable *self);
void _mks_paintable_get_position (MksPaintable *self,
int *x,
int *y);
G_END_DECLS

27
lib/mks-paintable.c
View File

@ -32,6 +32,8 @@
#include "mks-paintable-private.h"
#include "mks-qemu.h"
#include "mks-marshal.h"
struct _MksPaintable
{
GObject parent_instance;
@ -40,6 +42,8 @@ struct _MksPaintable
GDBusConnection *connection;
GdkPaintable *child;
GdkCursor *cursor;
int mouse_x;
int mouse_y;
};
enum {
@ -49,7 +53,13 @@ enum {
N_PROPS
};
enum {
MOUSE_SET,
N_SIGNALS
};
static GParamSpec *properties [N_PROPS];
static guint signals [N_SIGNALS];
static cairo_format_t
_pixman_format_to_cairo_format (guint pixman_format)
@ -198,6 +208,18 @@ mks_paintable_class_init (MksPaintableClass *klass)
(G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_properties (object_class, N_PROPS, properties);
signals [MOUSE_SET] =
g_signal_new ("mouse-set",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
_mks_marshal_VOID__INT_INT,
G_TYPE_NONE, 2, G_TYPE_INT, G_TYPE_INT);
g_signal_set_va_marshaller (signals [MOUSE_SET],
G_TYPE_FROM_CLASS (klass),
_mks_marshal_VOID__INT_INTv);
}
static void
@ -563,8 +585,13 @@ mks_paintable_listener_mouse_set (MksPaintable *self,
g_assert (G_IS_DBUS_METHOD_INVOCATION (invocation));
g_assert (MKS_QEMU_IS_LISTENER (listener));
self->mouse_x = x;
self->mouse_y = y;
mks_qemu_listener_complete_mouse_set (listener, invocation);
g_signal_emit (self, signals[MOUSE_SET], 0, x, y);
return TRUE;
}