Allow the server to have multiple input contexts.
This commit is contained in:
Daiki Ueno
619
src/server-context.c
Normal file
619
src/server-context.c
Normal file
@ -0,0 +1,619 @@
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/*
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* Copyright (C) 2010-2011 Daiki Ueno <ueno@unixuser.org>
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* Copyright (C) 2010-2011 Red Hat, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <gtk/gtk.h>
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif /* HAVE_CONFIG_H */
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#include "eek/eek.h"
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#if HAVE_CLUTTER_GTK
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#include <clutter-gtk/clutter-gtk.h>
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#include "eek/eek-clutter.h"
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#else /* HAVE_CLUTTER_GTK */
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#include "eek/eek-gtk.h"
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#endif /* !HAVE_CLUTTER_GTK */
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#include "server-context.h"
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#define CSW 640
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#define CSH 480
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enum {
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PROP_0,
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PROP_OBJECT_PATH,
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PROP_CONNECTION,
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PROP_LAST
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};
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static const gchar introspection_xml[] =
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"<node>"
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" <interface name='com.redhat.Eekboard.Context'>"
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" <method name='SetKeyboard'>"
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" <arg type='v' name='keyboard'/>"
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" </method>"
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" <method name='ShowKeyboard'/>"
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" <method name='HideKeyboard'/>"
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" <method name='SetGroup'>"
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" <arg type='i' name='group'/>"
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" </method>"
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" <method name='PressKey'>"
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" <arg type='u' name='keycode'/>"
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" </method>"
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" <method name='ReleaseKey'>"
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" <arg type='u' name='keycode'/>"
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" </method>"
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/* signals */
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" <signal name='Enabled'/>"
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" <signal name='Disabled'/>"
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" <signal name='KeyPressed'>"
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" <arg type='u' name='keycode'/>"
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" </signal>"
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" <signal name='KeyReleased'>"
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" <arg type='u' name='keycode'/>"
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" </signal>"
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" <signal name='KeyboardVisibilityChanged'>"
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" <arg type='b' name='visible'/>"
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" </signal>"
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" </interface>"
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"</node>";
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typedef struct _ServerContextClass ServerContextClass;
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struct _ServerContext {
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GObject parent;
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GDBusConnection *connection;
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GDBusNodeInfo *introspection_data;
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guint registration_id;
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char *object_path;
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gboolean enabled;
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GtkWidget *window;
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GtkWidget *widget;
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EekKeyboard *keyboard;
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gulong key_pressed_handler;
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gulong key_released_handler;
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};
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struct _ServerContextClass {
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GObjectClass parent_class;
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};
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G_DEFINE_TYPE (ServerContext, server_context, G_TYPE_OBJECT);
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static void disconnect_keyboard_signals (ServerContext *context);
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static void handle_method_call (GDBusConnection *connection,
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const gchar *sender,
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const gchar *object_path,
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const gchar *interface_name,
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const gchar *method_name,
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GVariant *parameters,
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GDBusMethodInvocation *invocation,
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gpointer user_data);
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static const GDBusInterfaceVTable interface_vtable =
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{
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handle_method_call,
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NULL,
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NULL
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};
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#if HAVE_CLUTTER_GTK
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static void
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on_allocation_changed (ClutterActor *stage,
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ClutterActorBox *box,
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ClutterAllocationFlags flags,
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gpointer user_data)
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{
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ClutterActor *actor = user_data;
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clutter_actor_set_size (actor,
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box->x2 - box->x1,
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box->y2 - box->y1);
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}
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#endif
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static void
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on_destroy (GtkWidget *widget, gpointer user_data)
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{
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ServerContext *context = user_data;
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g_assert (widget == context->window);
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context->window = NULL;
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context->widget = NULL;
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}
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static void
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on_notify_visible (GObject *object, GParamSpec *spec, gpointer user_data)
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{
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ServerContext *context = user_data;
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gboolean visible;
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GError *error;
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g_object_get (object, "visible", &visible, NULL);
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if (context->connection && context->enabled) {
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error = NULL;
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g_dbus_connection_emit_signal (context->connection,
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NULL,
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context->object_path,
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SERVER_CONTEXT_INTERFACE,
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"KeyboardVisibilityChanged",
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g_variant_new ("(b)", visible),
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&error);
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g_assert_no_error (error);
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}
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}
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static void
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update_widget (ServerContext *context)
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{
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GdkScreen *screen;
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GdkWindow *root;
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gint monitor;
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GdkRectangle rect;
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EekBounds bounds;
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#if HAVE_CLUTTER_GTK
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ClutterActor *stage, *actor;
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ClutterColor stage_color = { 0xff, 0xff, 0xff, 0xff };
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#endif
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if (context->widget)
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gtk_widget_destroy (context->widget);
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if (context->window)
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gtk_widget_destroy (context->window);
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eek_element_get_bounds (EEK_ELEMENT(context->keyboard), &bounds);
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#if HAVE_CLUTTER_GTK
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context->widget = gtk_clutter_embed_new ();
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stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED(context->widget));
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actor = eek_clutter_context_new (context->keyboard);
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clutter_container_add_actor (CLUTTER_CONTAINER(stage), actor);
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clutter_stage_set_color (CLUTTER_STAGE(stage), &stage_color);
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clutter_stage_set_user_resizable (CLUTTER_STAGE(stage), TRUE);
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clutter_stage_set_minimum_size (CLUTTER_STAGE(stage),
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bounds.width / 3,
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bounds.height / 3);
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g_signal_connect (stage,
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"allocation-changed",
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G_CALLBACK(on_allocation_changed),
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actor);
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#else
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context->widget = eek_gtk_keyboard_new (context->keyboard);
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#endif
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gtk_widget_set_size_request (context->widget, bounds.width, bounds.height);
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context->window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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g_signal_connect (context->window, "destroy",
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G_CALLBACK(on_destroy), context);
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g_signal_connect (context->window, "notify::visible",
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G_CALLBACK(on_notify_visible), context);
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gtk_container_add (GTK_CONTAINER(context->window), context->widget);
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gtk_widget_set_can_focus (context->window, FALSE);
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g_object_set (G_OBJECT(context->window), "accept_focus", FALSE, NULL);
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gtk_window_set_title (GTK_WINDOW(context->window), "Context");
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gtk_window_set_keep_above (GTK_WINDOW(context->window), TRUE);
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screen = gdk_screen_get_default ();
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root = gtk_widget_get_root_window (context->window);
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monitor = gdk_screen_get_monitor_at_window (screen, root);
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gdk_screen_get_monitor_geometry (screen, monitor, &rect);
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gtk_window_move (GTK_WINDOW(context->window),
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MAX(rect.width - 20 - bounds.width, 0),
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MAX(rect.height - 40 - bounds.height, 0));
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}
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static void
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server_context_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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ServerContext *context = SERVER_CONTEXT(object);
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GDBusConnection *connection;
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switch (prop_id) {
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case PROP_OBJECT_PATH:
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if (context->object_path)
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g_free (context->object_path);
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context->object_path = g_strdup (g_value_get_string (value));
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break;
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case PROP_CONNECTION:
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connection = g_value_get_object (value);
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if (context->connection)
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g_object_unref (context->connection);
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context->connection = g_object_ref (connection);
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break;
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default:
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g_object_set_property (object,
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g_param_spec_get_name (pspec),
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value);
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break;
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}
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}
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static void
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server_context_dispose (GObject *object)
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{
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ServerContext *context = SERVER_CONTEXT(object);
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if (context->keyboard) {
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disconnect_keyboard_signals (context);
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g_object_unref (context->keyboard);
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context->keyboard = NULL;
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}
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if (context->window) {
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gtk_widget_destroy (context->window);
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context->window = NULL;
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}
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if (context->connection) {
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if (context->registration_id > 0) {
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g_dbus_connection_unregister_object (context->connection,
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context->registration_id);
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context->registration_id = 0;
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}
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g_object_unref (context->connection);
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context->connection = NULL;
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}
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if (context->introspection_data) {
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g_dbus_node_info_unref (context->introspection_data);
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context->introspection_data = NULL;
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}
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G_OBJECT_CLASS (server_context_parent_class)->dispose (object);
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}
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static void
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server_context_constructed (GObject *object)
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{
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ServerContext *context = SERVER_CONTEXT (object);
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if (context->connection && context->object_path) {
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GError *error = NULL;
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context->registration_id = g_dbus_connection_register_object
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(context->connection,
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context->object_path,
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context->introspection_data->interfaces[0],
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&interface_vtable,
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context,
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NULL,
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&error);
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}
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}
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static void
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server_context_class_init (ServerContextClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GParamSpec *pspec;
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gobject_class->constructed = server_context_constructed;
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gobject_class->set_property = server_context_set_property;
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gobject_class->dispose = server_context_dispose;
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pspec = g_param_spec_string ("object-path",
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"Object-path",
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"Object-path",
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NULL,
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G_PARAM_CONSTRUCT_ONLY | G_PARAM_WRITABLE);
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g_object_class_install_property (gobject_class,
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PROP_OBJECT_PATH,
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pspec);
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pspec = g_param_spec_object ("connection",
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"Connection",
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"Connection",
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G_TYPE_DBUS_CONNECTION,
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G_PARAM_CONSTRUCT_ONLY | G_PARAM_WRITABLE);
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g_object_class_install_property (gobject_class,
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PROP_CONNECTION,
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pspec);
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}
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static void
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server_context_init (ServerContext *context)
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{
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GError *error;
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context->connection = NULL;
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error = NULL;
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context->introspection_data =
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g_dbus_node_info_new_for_xml (introspection_xml, &error);
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g_assert (context->introspection_data != NULL);
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context->registration_id = 0;
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context->object_path = NULL;
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context->keyboard = NULL;
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context->widget = NULL;
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context->window = NULL;
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context->key_pressed_handler = 0;
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context->key_released_handler = 0;
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}
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static void
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on_key_pressed (EekKeyboard *keyboard,
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EekKey *key,
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gpointer user_data)
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{
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ServerContext *context = user_data;
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if (context->connection && context->enabled) {
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guint keycode = eek_key_get_keycode (key);
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GError *error;
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error = NULL;
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g_dbus_connection_emit_signal (context->connection,
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NULL,
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context->object_path,
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SERVER_CONTEXT_INTERFACE,
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"KeyPressed",
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g_variant_new ("(u)", keycode),
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&error);
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g_assert_no_error (error);
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}
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}
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static void
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on_key_released (EekKeyboard *keyboard,
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EekKey *key,
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gpointer user_data)
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{
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ServerContext *context = user_data;
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if (context->connection && context->enabled) {
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guint keycode = eek_key_get_keycode (key);
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GError *error;
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error = NULL;
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g_dbus_connection_emit_signal (context->connection,
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NULL,
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context->object_path,
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SERVER_CONTEXT_INTERFACE,
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"KeyReleased",
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g_variant_new ("(u)", keycode),
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&error);
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g_assert_no_error (error);
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}
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}
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static void
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disconnect_keyboard_signals (ServerContext *context)
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{
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if (g_signal_handler_is_connected (context->keyboard,
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context->key_pressed_handler))
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g_signal_handler_disconnect (context->keyboard,
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context->key_pressed_handler);
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if (g_signal_handler_is_connected (context->keyboard,
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context->key_released_handler))
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g_signal_handler_disconnect (context->keyboard,
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context->key_released_handler);
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}
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static void
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handle_method_call (GDBusConnection *connection,
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const gchar *sender,
|
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const gchar *object_path,
|
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const gchar *interface_name,
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const gchar *method_name,
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GVariant *parameters,
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GDBusMethodInvocation *invocation,
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gpointer user_data)
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{
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ServerContext *context = user_data;
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|
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if (g_strcmp0 (method_name, "SetKeyboard") == 0) {
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EekSerializable *serializable;
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GVariant *variant;
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if (!context->enabled) {
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g_dbus_method_invocation_return_value (invocation, NULL);
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return;
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}
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g_variant_get (parameters, "(v)", &variant);
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serializable = eek_serializable_deserialize (variant);
|
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if (!EEK_IS_KEYBOARD(serializable)) {
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g_dbus_method_invocation_return_error (invocation,
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G_IO_ERROR,
|
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G_IO_ERROR_FAILED_HANDLED,
|
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"not a keyboard");
|
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return;
|
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}
|
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|
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context->keyboard = EEK_KEYBOARD(serializable);
|
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disconnect_keyboard_signals (context);
|
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context->key_pressed_handler =
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g_signal_connect (context->keyboard, "key-pressed",
|
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G_CALLBACK(on_key_pressed),
|
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context);
|
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context->key_released_handler =
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g_signal_connect (context->keyboard, "key-released",
|
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G_CALLBACK(on_key_released),
|
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context);
|
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eek_keyboard_set_modifier_behavior (context->keyboard,
|
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EEK_MODIFIER_BEHAVIOR_LATCH);
|
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|
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if (context->window) {
|
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gboolean was_visible = gtk_widget_get_visible (context->window);
|
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update_widget (context);
|
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if (was_visible)
|
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gtk_widget_show_all (context->window);
|
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}
|
||||
|
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g_dbus_method_invocation_return_value (invocation, NULL);
|
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return;
|
||||
}
|
||||
|
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if (g_strcmp0 (method_name, "SetGroup") == 0) {
|
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gint group;
|
||||
|
||||
if (!context->enabled) {
|
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g_dbus_method_invocation_return_value (invocation, NULL);
|
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return;
|
||||
}
|
||||
|
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if (!context->keyboard) {
|
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g_dbus_method_invocation_return_error (invocation,
|
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G_IO_ERROR,
|
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G_IO_ERROR_FAILED_HANDLED,
|
||||
"keyboard is not set");
|
||||
return;
|
||||
}
|
||||
|
||||
g_variant_get (parameters, "(i)", &group);
|
||||
eek_keyboard_set_group (context->keyboard, group);
|
||||
|
||||
if (context->window) {
|
||||
gboolean was_visible = gtk_widget_get_visible (context->window);
|
||||
update_widget (context);
|
||||
if (was_visible)
|
||||
gtk_widget_show_all (context->window);
|
||||
}
|
||||
|
||||
g_dbus_method_invocation_return_value (invocation, NULL);
|
||||
return;
|
||||
}
|
||||
|
||||
if (g_strcmp0 (method_name, "ShowKeyboard") == 0) {
|
||||
if (!context->keyboard) {
|
||||
g_dbus_method_invocation_return_error (invocation,
|
||||
G_IO_ERROR,
|
||||
G_IO_ERROR_FAILED_HANDLED,
|
||||
"keyboard is not set");
|
||||
return;
|
||||
}
|
||||
|
||||
if (!context->window)
|
||||
update_widget (context);
|
||||
g_assert (context->window);
|
||||
gtk_widget_show_all (context->window);
|
||||
g_dbus_method_invocation_return_value (invocation, NULL);
|
||||
return;
|
||||
}
|
||||
|
||||
if (g_strcmp0 (method_name, "HideKeyboard") == 0) {
|
||||
if (context->window)
|
||||
gtk_widget_hide (context->window);
|
||||
g_dbus_method_invocation_return_value (invocation, NULL);
|
||||
return;
|
||||
}
|
||||
|
||||
if (g_strcmp0 (method_name, "PressKey") == 0 ||
|
||||
g_strcmp0 (method_name, "ReleaseKey") == 0) {
|
||||
EekKey *key;
|
||||
guint keycode;
|
||||
|
||||
if (!context->enabled) {
|
||||
g_dbus_method_invocation_return_value (invocation, NULL);
|
||||
return;
|
||||
}
|
||||
|
||||
if (!context->keyboard) {
|
||||
g_dbus_method_invocation_return_error (invocation,
|
||||
G_IO_ERROR,
|
||||
G_IO_ERROR_FAILED_HANDLED,
|
||||
"keyboard is not set");
|
||||
return;
|
||||
}
|
||||
|
||||
g_variant_get (parameters, "(u)", &keycode);
|
||||
key = eek_keyboard_find_key_by_keycode (context->keyboard, keycode);
|
||||
|
||||
if (!key) {
|
||||
g_dbus_method_invocation_return_error (invocation,
|
||||
G_IO_ERROR,
|
||||
G_IO_ERROR_FAILED_HANDLED,
|
||||
"key for %u is not found",
|
||||
keycode);
|
||||
return;
|
||||
}
|
||||
|
||||
if (g_strcmp0 (method_name, "PressKey") == 0) {
|
||||
g_signal_handler_block (context->keyboard,
|
||||
context->key_pressed_handler);
|
||||
g_signal_emit_by_name (key, "pressed");
|
||||
g_signal_handler_unblock (context->keyboard,
|
||||
context->key_pressed_handler);
|
||||
} else {
|
||||
g_signal_handler_block (context->keyboard,
|
||||
context->key_released_handler);
|
||||
g_signal_emit_by_name (key, "released");
|
||||
g_signal_handler_unblock (context->keyboard,
|
||||
context->key_released_handler);
|
||||
}
|
||||
|
||||
g_dbus_method_invocation_return_value (invocation, NULL);
|
||||
return;
|
||||
}
|
||||
|
||||
g_return_if_reached ();
|
||||
}
|
||||
|
||||
ServerContext *
|
||||
server_context_new (const gchar *object_path,
|
||||
GDBusConnection *connection)
|
||||
{
|
||||
return g_object_new (SERVER_TYPE_CONTEXT,
|
||||
"object-path", object_path,
|
||||
"connection", connection,
|
||||
NULL);
|
||||
}
|
||||
|
||||
void
|
||||
server_context_set_enabled (ServerContext *context, gboolean enabled)
|
||||
{
|
||||
GError *error;
|
||||
|
||||
g_return_if_fail (SERVER_IS_CONTEXT(context));
|
||||
g_return_if_fail (context->connection);
|
||||
|
||||
if (context->enabled == enabled)
|
||||
return;
|
||||
|
||||
if (enabled) {
|
||||
error = NULL;
|
||||
g_dbus_connection_emit_signal (context->connection,
|
||||
NULL,
|
||||
context->object_path,
|
||||
SERVER_CONTEXT_INTERFACE,
|
||||
"Enabled",
|
||||
NULL,
|
||||
&error);
|
||||
g_assert_no_error (error);
|
||||
} else {
|
||||
error = NULL;
|
||||
g_dbus_connection_emit_signal (context->connection,
|
||||
NULL,
|
||||
context->object_path,
|
||||
SERVER_CONTEXT_INTERFACE,
|
||||
"Disabled",
|
||||
NULL,
|
||||
&error);
|
||||
g_assert_no_error (error);
|
||||
}
|
||||
context->enabled = enabled;
|
||||
}
|
||||
Reference in New Issue
Block a user