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eis: Rebuild absolute pointers when any viewport changes

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This fixes remote desktop client side resize via changing virtual
monitor stream sizes.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3241>
This commit is contained in:
Jonas Ådahl 2023-09-04 12:10:32 +02:00
parent 1a1a16324b
commit 15a3c47df5
4 changed files with 57 additions and 0 deletions
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21
src/backends/meta-eis-viewport.c
View File

@ -20,11 +20,26 @@
#include "backends/meta-eis-viewport.h"
enum
{
VIEWPORT_CHANGED,
N_SIGNALS
};
static guint signals[N_SIGNALS];
G_DEFINE_INTERFACE (MetaEisViewport, meta_eis_viewport, G_TYPE_OBJECT)
static void
meta_eis_viewport_default_init (MetaEisViewportInterface *iface)
{
signals[VIEWPORT_CHANGED] =
g_signal_new ("viewport-changed",
G_TYPE_FROM_INTERFACE (iface),
G_SIGNAL_RUN_LAST,
0, NULL, NULL, NULL,
G_TYPE_NONE, 0);
}
gboolean
@ -78,3 +93,9 @@ meta_eis_viewport_transform_coordinate (MetaEisViewport *viewport,
out_x,
out_y);
}
void
meta_eis_viewport_notify_changed (MetaEisViewport *viewport)
{
g_signal_emit (viewport, signals[VIEWPORT_CHANGED], 0);
}

2
src/backends/meta-eis-viewport.h
View File

@ -68,3 +68,5 @@ gboolean meta_eis_viewport_transform_coordinate (MetaEisViewport *viewport,
double y,
double *out_x,
double *out_y);
void meta_eis_viewport_notify_changed (MetaEisViewport *viewport);

30
src/backends/meta-eis.c
View File

@ -315,18 +315,29 @@ meta_eis_get_device_types (MetaEis *eis)
return eis->device_types;
}
static void
on_viewport_changed (MetaEisViewport *viewport,
MetaEis *eis)
{
g_signal_emit (eis, signals[VIEWPORTS_CHANGED], 0);
}
void
meta_eis_add_viewport (MetaEis *eis,
MetaEisViewport *viewport)
{
eis->viewports = g_list_append (eis->viewports, viewport);
g_signal_emit (eis, signals[VIEWPORTS_CHANGED], 0);
g_signal_connect (viewport, "viewport-changed",
G_CALLBACK (on_viewport_changed), eis);
}
void
meta_eis_remove_viewport (MetaEis *eis,
MetaEisViewport *viewport)
{
g_signal_handlers_disconnect_by_func (viewport, on_viewport_changed, eis);
eis->viewports = g_list_remove (eis->viewports, viewport);
g_signal_emit (eis, signals[VIEWPORTS_CHANGED], 0);
}
@ -335,6 +346,16 @@ void
meta_eis_take_viewports (MetaEis *eis,
GList *viewports)
{
GList *l;
for (l = viewports; l; l = l->next)
{
MetaEisViewport *viewport = l->data;
g_signal_connect (viewport, "viewport-changed",
G_CALLBACK (on_viewport_changed), eis);
}
eis->viewports = g_list_concat (eis->viewports, viewports);
g_signal_emit (eis, signals[VIEWPORTS_CHANGED], 0);
}
@ -342,6 +363,15 @@ meta_eis_take_viewports (MetaEis *eis,
void
meta_eis_remove_all_viewports (MetaEis *eis)
{
GList *l;
for (l = eis->viewports; l; l = l->next)
{
MetaEisViewport *viewport = l->data;
g_signal_handlers_disconnect_by_func (viewport, on_viewport_changed, eis);
}
g_clear_pointer (&eis->viewports, g_list_free);
g_signal_emit (eis, signals[VIEWPORTS_CHANGED], 0);
}

4
src/backends/meta-screen-cast-virtual-stream-src.c
View File

@ -22,6 +22,7 @@
#include "backends/meta-crtc-mode.h"
#include "backends/meta-cursor-tracker-private.h"
#include "backends/meta-eis-viewport.h"
#include "backends/meta-monitor.h"
#include "backends/meta-output.h"
#include "backends/meta-screen-cast-session.h"
@ -243,10 +244,13 @@ on_monitors_changed (MetaMonitorManager *monitor_manager,
{
MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (virtual_src);
MetaStage *stage = META_STAGE (stage_from_src (src));
MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
meta_stage_remove_watch (stage, virtual_src->watch);
virtual_src->watch = NULL;
add_watch (virtual_src);
meta_eis_viewport_notify_changed (META_EIS_VIEWPORT (stream));
}
static void