v1.0.0 moved zero-panel to its own git repo.

build/

release/

zero-panel-generated.[ch]

non-free/

DEST/

*.deb

* COMMENT -*- mode: org -*-

#+Date: 2019-04-11

Time-stamp: <2019-04-11>

* Credit

** peppa-pig-50.png is created from linux kernel logo at

https://www.kernel.org/theme/images/logos/tux.png under Creative Commons

Attribution ShareAlike 4.0 International License.

#include <gio/gio.h>

#include <glib.h>

#ifdef G_OS_UNIX

#include <glib-unix.h>

#endif

#include "zero-panel.h"

typedef struct {

	GApplication *app;

	ZeroPanel *proxy;

} AppData;

AppData appdata;

#ifdef G_OS_UNIX

/**

 * handle SIGTERM gracefully.

 */

static gboolean

on_sigterm_received(gpointer user_data)

{

	AppData *appdata = (AppData *) user_data;

	g_application_quit(appdata->app);

	return G_SOURCE_REMOVE;

}

/**

 * allow graceful shutdown by Ctrl-C and SIGTERM.

 */

static void

setup_sigint_sigterm_handler(AppData *appdata)

{

	GSource *source = NULL;

	source = g_unix_signal_source_new(SIGTERM);

	g_source_set_callback(source, on_sigterm_received, appdata, NULL);

	g_source_attach(source, NULL);

	g_source_unref(source);

	source = g_unix_signal_source_new(SIGINT);

	g_source_set_callback(source, on_sigterm_received, appdata, NULL);

	g_source_attach(source, NULL);

	g_source_unref(source);

}

#endif

static gint

hide_then_quit(gpointer user_data)

{

	AppData *appdata = (AppData *) user_data;

	GError *err = NULL;

	zero_panel_call_hide_sync(appdata->proxy, NULL, &err);

	if (err) {

		g_warning("call Hide() failed: %s", err->message);

		g_error_free(err);

	} else {

		g_message("call Hide() okay");

		g_application_quit(appdata->app);

	}

	return G_SOURCE_REMOVE;

}

static void

startup(GApplication *app,

	AppData *appdata)

{

	ZeroPanel *proxy = NULL;

	GError *err = NULL;

#ifdef G_OS_UNIX

	setup_sigint_sigterm_handler(appdata);

#endif

	appdata->proxy = NULL;

	proxy = zero_panel_proxy_new_for_bus_sync(

			G_BUS_TYPE_SESSION,

			G_DBUS_PROXY_FLAGS_NONE,

			ZERO_PANEL_WELL_KNOWN_NAME,

			ZERO_PANEL_OBJECT_PATH,

			NULL,		/* GCancellable */

			&err);

	if (err) {

		g_warning("connect to zero panel proxy failed: %s", err->message);

		g_error_free(err);

	} else {

		appdata->proxy = proxy;

	}

	/* show panel, wait 3s, then hide panel and exit app */

	err = NULL;

	const gchar *const candidates[] = {"第一个", "第二个", "第三个"};

	GVariant *hints = NULL;

	GVariantBuilder b = {0};

	g_variant_builder_init(&b, G_VARIANT_TYPE("a{sv}"));

	g_variant_builder_add(&b, "{sv}", "has_next_page",

			      g_variant_new_boolean(TRUE));

	g_variant_builder_add(&b, "{sv}", "has_previous_page",

			      g_variant_new_boolean(FALSE));

	hints = g_variant_builder_end(&b);

	zero_panel_call_show_candidates_sync(proxy, "abc", 3, candidates, hints, NULL, &err);

	if (err) {

		g_warning("call ShowCandidates() failed: %s", err->message);

		g_error_free(err);

	} else {

		g_message("call ShowCandidates() okay");

		g_timeout_add_seconds(3, hide_then_quit, appdata);

	}

	g_application_hold(app);

}

static void

activate(GApplication *app,

	 AppData *appdata)

{

	g_message("activate()");

	/* activate is a no-op. */

}

static void

shutdown(GApplication *app,

	 AppData *appdata)

{

	g_message("shutdown()");

	if (appdata->proxy) {

		zero_panel_call_hide(appdata->proxy, NULL, NULL, NULL);

		g_object_unref(appdata->proxy);

		appdata->proxy = NULL;

	}

}

int

main(int argc, char *argv[])

{

	GApplication *app = NULL;

	int status = 0;

	app = g_application_new("com.emacsos.zero.ZeroPanelClientDemo",

				G_APPLICATION_FLAGS_NONE);

	g_assert_nonnull(app);

	appdata.app = app;

	g_signal_connect(app, "startup", G_CALLBACK(startup), &appdata);

	g_signal_connect(app, "activate", G_CALLBACK(activate), &appdata);

	g_signal_connect(app, "shutdown", G_CALLBACK(shutdown), &appdata);

	status = g_application_run(G_APPLICATION(app), argc, argv);

	g_object_unref(app);

	return status;

}

<!DOCTYPE node PUBLIC

"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"

"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd" >

<node>

  <interface name="com.emacsos.zero.Panel1.PanelInterface">

    <!--

	ShowCandidates:

	@preedit_str: the preedit string

	@candidate_count: how many candidates passed in

	@candidates: the candidates in an dbus array

	@hints: optional data to describe the client or the candidates

	Show candidates in a panel. the panel should show digit keys for each

	candidate, starting from 1. As user can select candidates using digit

	keys.

    -->

    <method name="ShowCandidates">

      <arg type="s" name="preedit_str"/>

      <arg type="u" name="candidate_count"/>

      <arg type="as" name="candidates"/>

      <arg type="a{sv}" name="hints"/>

    </method>

    <!--

	Move:

	@x: x coordinates

	@y: y coordinates

	Move panel to (x, y), based on origin at top left corner.

    -->

    <method name="Move">

      <arg type="i" name="x" direction="in"/>

      <arg type="i" name="y" direction="in"/>

    </method>

    <method name="Show"/>

    <method name="Hide"/>

    <method name="Quit"/>

    <annotation name="org.gtk.GDBus.C.Name" value="ZeroPanel"/>

  </interface>

</node>

[D-BUS Service]

Name=com.emacsos.zero.Panel1

Exec=/home/sylecn/d/zero-panel -t peppa-pig-v