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mir: implement window properties
https://bugzilla.gnome.org/show_bug.cgi?id=775732
This commit is contained in:
William Hua
parent
f3779b42c5
commit
ed0bd0bba2
@ -36,12 +36,45 @@
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#define MAX_EGL_ATTRS 30
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typedef struct
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{
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GdkAtom type;
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GArray *array;
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} GdkMirProperty;
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static GdkMirProperty *
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gdk_mir_property_new (GdkAtom type,
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guint format,
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guint capacity)
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{
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GdkMirProperty *property = g_slice_new (GdkMirProperty);
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property->type = type;
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property->array = g_array_sized_new (TRUE, FALSE, format, capacity);
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return property;
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}
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static void
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gdk_mir_property_free (gpointer data)
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{
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GdkMirProperty *property = data;
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if (!property)
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return;
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g_array_unref (property->array);
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g_slice_free (GdkMirProperty, property);
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}
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typedef struct _GdkMirWindowImplClass GdkMirWindowImplClass;
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struct _GdkMirWindowImpl
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{
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GdkWindowImpl parent_instance;
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GHashTable *properties;
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/* Window we are temporary for */
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GdkWindow *transient_for;
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gint transient_x;
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@ -224,6 +257,7 @@ _gdk_mir_window_impl_get_cursor_state (GdkMirWindowImpl *impl,
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static void
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gdk_mir_window_impl_init (GdkMirWindowImpl *impl)
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{
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impl->properties = g_hash_table_new_full (NULL, NULL, NULL, gdk_mir_property_free);
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impl->type_hint = GDK_WINDOW_TYPE_HINT_NORMAL;
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impl->surface_state = mir_surface_state_unknown;
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impl->output_scale = 1;
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@ -666,6 +700,8 @@ gdk_mir_window_impl_finalize (GObject *object)
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if (impl->cairo_surface)
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cairo_surface_destroy (impl->cairo_surface);
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g_clear_pointer (&impl->properties, g_hash_table_unref);
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G_OBJECT_CLASS (gdk_mir_window_impl_parent_class)->finalize (object);
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}
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@ -1396,19 +1432,79 @@ gdk_mir_window_impl_simulate_button (GdkWindow *window,
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}
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static gboolean
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gdk_mir_window_impl_get_property (GdkWindow *window,
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GdkAtom property,
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GdkAtom type,
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gulong offset,
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gulong length,
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gint pdelete,
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GdkAtom *actual_property_type,
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gint *actual_format_type,
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gint *actual_length,
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guchar **data)
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gdk_mir_window_impl_get_property (GdkWindow *window,
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GdkAtom property,
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GdkAtom type,
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gulong offset,
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gulong length,
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gint pdelete,
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GdkAtom *actual_type,
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gint *actual_format,
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gint *actual_length,
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guchar **data)
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{
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//g_printerr ("gdk_mir_window_impl_get_property window=%p\n", window);
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return FALSE;
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GdkMirWindowImpl *impl = GDK_MIR_WINDOW_IMPL (window->impl);
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GdkMirProperty *mir_property;
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GdkAtom dummy_actual_type;
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gint dummy_actual_format;
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gint dummy_actual_length;
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guint width;
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if (!actual_type)
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actual_type = &dummy_actual_type;
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if (!actual_format)
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actual_format = &dummy_actual_format;
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if (!actual_length)
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actual_length = &dummy_actual_length;
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*actual_type = GDK_NONE;
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*actual_format = 0;
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*actual_length = 0;
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if (data)
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*data = NULL;
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mir_property = g_hash_table_lookup (impl->properties, property);
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if (!mir_property)
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return FALSE;
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width = g_array_get_element_size (mir_property->array);
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*actual_type = mir_property->type;
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*actual_format = 8 * width;
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/* ICCCM 2.7: GdkAtoms can be 64-bit, but ATOMs and ATOM_PAIRs have format 32 */
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if (*actual_type == GDK_SELECTION_TYPE_ATOM || *actual_type == gdk_atom_intern_static_string ("ATOM_PAIR"))
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*actual_format = 32;
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if (type != GDK_NONE && type != mir_property->type)
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return FALSE;
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offset *= 4;
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/* round up to next nearest multiple of width */
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if (length < G_MAXULONG - width + 1)
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length = (length - 1 + width) / width * width;
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else
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length = G_MAXULONG / width * width;
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/* we're skipping the first offset bytes */
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if (length > mir_property->array->len * width - offset)
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length = mir_property->array->len * width - offset;
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/* leave room for null terminator */
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if (length > G_MAXULONG - width)
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length -= width;
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*actual_length = length;
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if (data)
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{
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*data = g_memdup (mir_property->array->data + offset, length + width);
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memset (*data + length, 0, width);
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}
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return TRUE;
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}
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static void
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@ -1418,16 +1514,67 @@ gdk_mir_window_impl_change_property (GdkWindow *window,
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gint format,
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GdkPropMode mode,
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const guchar *data,
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gint nelements)
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gint n_elements)
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{
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//g_printerr ("gdk_mir_window_impl_change_property window=%p\n", window);
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GdkMirWindowImpl *impl = GDK_MIR_WINDOW_IMPL (window->impl);
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GdkMirProperty *mir_property;
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GdkEvent *event;
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/* ICCCM 2.7: ATOMs and ATOM_PAIRs have format 32, but GdkAtoms can be 64-bit */
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if (type == GDK_SELECTION_TYPE_ATOM || type == gdk_atom_intern_static_string ("ATOM_PAIR"))
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format = 8 * sizeof (GdkAtom);
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if (mode != GDK_PROP_MODE_REPLACE)
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mir_property = g_hash_table_lookup (impl->properties, property);
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else
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mir_property = NULL;
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if (!mir_property)
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{
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/* format is measured in bits, but we need to know this in bytes */
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mir_property = gdk_mir_property_new (type, format / 8, n_elements);
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g_hash_table_insert (impl->properties, property, mir_property);
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}
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/* format is measured in bits, but we need to know this in bytes */
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if (type != mir_property->type || format / 8 != g_array_get_element_size (mir_property->array))
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return;
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if (mode == GDK_PROP_MODE_PREPEND)
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g_array_prepend_vals (mir_property->array, data, n_elements);
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else
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g_array_append_vals (mir_property->array, data, n_elements);
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event = gdk_event_new (GDK_PROPERTY_NOTIFY);
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event->property.window = g_object_ref (window);
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event->property.send_event = FALSE;
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event->property.atom = property;
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event->property.time = GDK_CURRENT_TIME;
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event->property.state = GDK_PROPERTY_NEW_VALUE;
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gdk_event_put (event);
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gdk_event_free (event);
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}
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static void
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gdk_mir_window_impl_delete_property (GdkWindow *window,
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GdkAtom property)
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{
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//g_printerr ("gdk_mir_window_impl_delete_property window=%p\n", window);
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GdkMirWindowImpl *impl = GDK_MIR_WINDOW_IMPL (window->impl);
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GdkEvent *event;
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if (g_hash_table_remove (impl->properties, property))
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{
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event = gdk_event_new (GDK_PROPERTY_NOTIFY);
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event->property.window = g_object_ref (window);
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event->property.send_event = FALSE;
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event->property.atom = property;
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event->property.time = GDK_CURRENT_TIME;
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event->property.state = GDK_PROPERTY_DELETE;
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gdk_event_put (event);
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gdk_event_free (event);
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}
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}
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static gint
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