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https://github.com/brl/mutter.git
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barrier: Add a new Meta wrapper for pointer barriers
Currently, we have a few function wrappers in the shell for pointer barriers. If we want to implement interactive features on barriers, we need some sort of signal to be notified of the interactivity. In that case, we need to make a more sophisticated object-based wrapper for a pointer barrier. Add one, and stick it in mutter. https://bugzilla.gnome.org/show_bug.cgi?id=677215
This commit is contained in:
Jasper St. Pierre
parent
e914595062
commit
8b21df92f0
@ -33,6 +33,8 @@ mutter_built_sources = \
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libmutter_la_SOURCES = \
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core/async-getprop.c \
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core/async-getprop.h \
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core/barrier.c \
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meta/barrier.h \
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core/bell.c \
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core/bell.h \
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core/boxes.c \
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@ -157,6 +159,7 @@ libmutter_la_LIBADD = $(MUTTER_LIBS)
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# Headers installed for plugins; introspected information will
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# be extracted into Mutter-<version>.gir
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libmutterinclude_base_headers = \
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meta/barrier.h \
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meta/boxes.h \
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meta/common.h \
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meta/compositor-mutter.h \
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243
src/core/barrier.c
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243
src/core/barrier.c
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@ -0,0 +1,243 @@
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
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#include "config.h"
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#include <glib-object.h>
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#include <X11/extensions/Xfixes.h>
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#include <meta/util.h>
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#include <meta/barrier.h>
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#include "display-private.h"
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#include "mutter-enum-types.h"
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#include "core.h"
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G_DEFINE_TYPE (MetaBarrier, meta_barrier, G_TYPE_OBJECT)
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enum {
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PROP_0,
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PROP_DISPLAY,
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PROP_X1,
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PROP_Y1,
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PROP_X2,
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PROP_Y2,
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PROP_DIRECTIONS,
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PROP_LAST,
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};
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static GParamSpec *obj_props[PROP_LAST];
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struct _MetaBarrierPrivate
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{
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MetaDisplay *display;
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int x1;
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int y1;
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int x2;
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int y2;
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MetaBarrierDirection directions;
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PointerBarrier xbarrier;
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};
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static void
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meta_barrier_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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MetaBarrier *barrier = META_BARRIER (object);
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MetaBarrierPrivate *priv = barrier->priv;
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switch (prop_id)
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{
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case PROP_DISPLAY:
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g_value_set_object (value, priv->display);
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break;
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case PROP_X1:
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g_value_set_int (value, priv->x1);
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break;
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case PROP_Y1:
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g_value_set_int (value, priv->y1);
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break;
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case PROP_X2:
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g_value_set_int (value, priv->x2);
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break;
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case PROP_Y2:
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g_value_set_int (value, priv->y2);
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break;
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case PROP_DIRECTIONS:
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g_value_set_flags (value, priv->directions);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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meta_barrier_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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MetaBarrier *barrier = META_BARRIER (object);
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MetaBarrierPrivate *priv = barrier->priv;
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switch (prop_id)
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{
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case PROP_DISPLAY:
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priv->display = g_value_get_object (value);
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break;
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case PROP_X1:
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priv->x1 = g_value_get_int (value);
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break;
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case PROP_Y1:
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priv->y1 = g_value_get_int (value);
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break;
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case PROP_X2:
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priv->x2 = g_value_get_int (value);
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break;
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case PROP_Y2:
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priv->y2 = g_value_get_int (value);
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break;
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case PROP_DIRECTIONS:
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priv->directions = g_value_get_flags (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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meta_barrier_dispose (GObject *object)
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{
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MetaBarrier *barrier = META_BARRIER (object);
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MetaBarrierPrivate *priv = barrier->priv;
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if (meta_barrier_is_active (barrier))
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{
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meta_bug ("MetaBarrier wrapper %p for X barrier %ld was destroyed"
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" while the X barrier is still active.",
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barrier, priv->xbarrier);
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}
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G_OBJECT_CLASS (meta_barrier_parent_class)->dispose (object);
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}
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gboolean
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meta_barrier_is_active (MetaBarrier *barrier)
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{
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return barrier->priv->xbarrier != 0;
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}
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static void
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meta_barrier_constructed (GObject *object)
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{
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MetaBarrier *barrier = META_BARRIER (object);
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MetaBarrierPrivate *priv = barrier->priv;
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Display *dpy;
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Window root;
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g_return_if_fail (priv->x1 == priv->x2 || priv->y1 == priv->y2);
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if (priv->display == NULL)
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{
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g_warning ("A display must be provided when constructing a barrier.");
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return;
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}
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dpy = priv->display->xdisplay;
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root = DefaultRootWindow (dpy);
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priv->xbarrier = XFixesCreatePointerBarrier (dpy, root,
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priv->x1, priv->y1,
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priv->x2, priv->y2,
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priv->directions, 0, NULL);
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G_OBJECT_CLASS (meta_barrier_parent_class)->constructed (object);
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}
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static void
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meta_barrier_class_init (MetaBarrierClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->get_property = meta_barrier_get_property;
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object_class->set_property = meta_barrier_set_property;
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object_class->dispose = meta_barrier_dispose;
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object_class->constructed = meta_barrier_constructed;
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obj_props[PROP_DISPLAY] =
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g_param_spec_object ("display",
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"Display",
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"The display to construct the pointer barrier on",
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META_TYPE_DISPLAY,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
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obj_props[PROP_X1] =
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g_param_spec_int ("x1",
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"X1",
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"The first X coordinate of the barrier",
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0, G_MAXSHORT, 0,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
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obj_props[PROP_Y1] =
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g_param_spec_int ("y1",
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"Y1",
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"The first Y coordinate of the barrier",
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0, G_MAXSHORT, 0,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
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obj_props[PROP_X2] =
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g_param_spec_int ("x2",
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"X2",
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"The second X coordinate of the barrier",
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0, G_MAXSHORT, G_MAXSHORT,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
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obj_props[PROP_Y2] =
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g_param_spec_int ("y2",
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"Y2",
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"The second Y coordinate of the barrier",
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0, G_MAXSHORT, G_MAXSHORT,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
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obj_props[PROP_DIRECTIONS] =
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g_param_spec_flags ("directions",
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"Directions",
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"A set of directions to let the pointer through",
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META_TYPE_BARRIER_DIRECTION,
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0,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
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g_object_class_install_properties (object_class, PROP_LAST, obj_props);
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g_type_class_add_private (object_class, sizeof(MetaBarrierPrivate));
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}
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void
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meta_barrier_destroy (MetaBarrier *barrier)
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{
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MetaBarrierPrivate *priv = barrier->priv;
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Display *dpy;
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if (priv->display == NULL)
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return;
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dpy = priv->display->xdisplay;
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if (!meta_barrier_is_active (barrier))
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return;
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XFixesDestroyPointerBarrier (dpy, priv->xbarrier);
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priv->xbarrier = 0;
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}
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static void
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meta_barrier_init (MetaBarrier *barrier)
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{
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barrier->priv = G_TYPE_INSTANCE_GET_PRIVATE (barrier, META_TYPE_BARRIER, MetaBarrierPrivate);
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}
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50
src/meta/barrier.h
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50
src/meta/barrier.h
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@ -0,0 +1,50 @@
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
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#ifndef __META_BARRIER_H__
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#define __META_BARRIER_H__
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#include <glib-object.h>
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#include <meta/display.h>
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G_BEGIN_DECLS
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#define META_TYPE_BARRIER (meta_barrier_get_type ())
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#define META_BARRIER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_BARRIER, MetaBarrier))
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#define META_BARRIER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_BARRIER, MetaBarrierClass))
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#define META_IS_BARRIER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_BARRIER))
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#define META_IS_BARRIER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_BARRIER))
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#define META_BARRIER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_BARRIER, MetaBarrierClass))
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typedef struct _MetaBarrier MetaBarrier;
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typedef struct _MetaBarrierClass MetaBarrierClass;
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typedef struct _MetaBarrierPrivate MetaBarrierPrivate;
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struct _MetaBarrier
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{
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GObject parent;
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MetaBarrierPrivate *priv;
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};
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struct _MetaBarrierClass
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{
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GObjectClass parent_class;
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};
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GType meta_barrier_get_type (void) G_GNUC_CONST;
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gboolean meta_barrier_is_active (MetaBarrier *barrier);
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void meta_barrier_destroy (MetaBarrier *barrier);
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/* Keep in sync with XFixes */
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typedef enum {
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META_BARRIER_DIRECTION_POSITIVE_X = 1 << 0,
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META_BARRIER_DIRECTION_POSITIVE_Y = 1 << 1,
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META_BARRIER_DIRECTION_NEGATIVE_X = 1 << 2,
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META_BARRIER_DIRECTION_NEGATIVE_Y = 1 << 3,
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} MetaBarrierDirection;
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G_END_DECLS
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#endif /* __META_BARRIER_H__ */
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