Desktop

Back to the revision list Download file Permalink

/* $Id: embed.c,v 1.8 2012/10/13 00:02:14 khorben Exp $ */

/* This file is part of DeforaOS Desktop Panel */

/* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, version 3 of the License.

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <http://www.gnu.org/licenses/>. */

/* TODO:

* - let automatic show/hide be in preferences */

#ifdef DEBUG

# include <stdio.h>

#endif

#include <stdlib.h>

#include <string.h>

#include <System.h>

#include <Desktop.h>

#include "Panel.h"

/* Embed */

/* private */

/* types */

typedef struct _EmbedWidget

{

GtkWidget * socket;

GdkNativeWindow id;

} EmbedWidget;

typedef struct _PanelApplet

{

PanelAppletHelper * helper;

guint source;

/* widgets */

GtkWidget * button;

GtkWidget * window;

GtkWidget * vbox;

EmbedWidget * widgets;

size_t widgets_cnt;

} Embed;

/* prototypes */

static Embed * _embed_init(PanelAppletHelper * helper,

GtkWidget ** widget);

static void _embed_destroy(Embed * embed);

/* callbacks */

static void _embed_on_added(gpointer data);

static int _embed_on_desktop_message(void * data, uint32_t value1,

uint32_t value2, uint32_t value3);

static int _embed_on_idle(gpointer data);

static gboolean _embed_on_removed(GtkWidget * widget, gpointer data);

static void _embed_on_toggled(gpointer data);

/* public */

/* variables */

PanelAppletDefinition applet =

{

"Embed",

"gnome-window-manager",

NULL,

_embed_init,

_embed_destroy,

NULL,

FALSE,

TRUE

};

/* private */

/* functions */

/* embed_init */

static Embed * _embed_init(PanelAppletHelper * helper,

GtkWidget ** widget)

{

Embed * embed;

GtkWidget * image;

if((embed = object_new(sizeof(*embed))) == NULL)

{

helper->error(NULL, error_get(), 1);

return NULL;

}

embed->helper = helper;

embed->source = 0;

embed->window = NULL;

embed->vbox = NULL;

embed->button = gtk_toggle_button_new();

embed->widgets = NULL;

embed->widgets_cnt = 0;

#if GTK_CHECK_VERSION(2, 12, 0)

gtk_widget_set_tooltip_text(embed->button, "Show embedded widgets");

#endif

gtk_button_set_relief(GTK_BUTTON(embed->button), GTK_RELIEF_NONE);

gtk_widget_set_sensitive(embed->button, FALSE);

g_signal_connect_swapped(G_OBJECT(embed->button), "toggled", G_CALLBACK(

_embed_on_toggled), embed);

image = gtk_image_new_from_icon_name(applet.icon, helper->icon_size);

gtk_container_add(GTK_CONTAINER(embed->button), image);

gtk_widget_show_all(embed->button);

*widget = embed->button;

g_idle_add(_embed_on_idle, embed);

return embed;

}

/* embed_destroy */

static void _embed_destroy(Embed * embed)

{

if(embed->source != 0)

g_source_remove(embed->source);

g_object_unref(embed->vbox);

free(embed->widgets);

object_delete(embed);

}

/* callbacks */

/* embed_on_added */

static void _embed_on_added(gpointer data)

{

Embed * embed = data;

#ifdef DEBUG

fprintf(stderr, "DEBUG: %s()\n", __func__);

#endif

gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(embed->button), TRUE);

gtk_widget_set_sensitive(embed->button, TRUE);

}

/* embed_on_desktop_message */

static int _embed_on_desktop_message(void * data, uint32_t value1,

uint32_t value2, uint32_t value3)

{

Embed * embed = data;

GtkWidget * socket;

size_t i;

EmbedWidget * p;

#ifdef DEBUG

fprintf(stderr, "DEBUG: %s(%u, %u, %u)\n", __func__, value1, value2,

value3);

#endif

if(value1 != PANEL_MESSAGE_EMBED)

return 0;

/* check if this ID is not already added */

for(i = 0; i < embed->widgets_cnt; i++)

if(embed->widgets[i].id == value2)

/* no need to add this ID again */

return 0;

if((p = realloc(embed->widgets, sizeof(*p) * (embed->widgets_cnt + 1)))

== NULL)

/* XXX handle this error */

return 0;

embed->widgets = p;

socket = gtk_socket_new();

p[embed->widgets_cnt].socket = socket;

p[embed->widgets_cnt++].id = value2;

g_signal_connect_swapped(socket, "plug-added", G_CALLBACK(

_embed_on_added), embed);

g_signal_connect(socket, "plug-removed", G_CALLBACK(_embed_on_removed),

embed);

gtk_widget_show(socket);

gtk_box_pack_start(GTK_BOX(embed->vbox), socket, FALSE, TRUE, 0);

gtk_socket_add_id(GTK_SOCKET(socket), value2);

return 0;

}

/* embed_on_idle */

static int _embed_on_idle(gpointer data)

{

Embed * embed = data;

#ifdef DEBUG

fprintf(stderr, "DEBUG: %s()\n", __func__);

#endif

embed->source = 0;

embed->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

gtk_window_set_accept_focus(GTK_WINDOW(embed->window), FALSE);

#if GTK_CHECK_VERSION(2, 6, 0)

gtk_window_set_focus_on_map(GTK_WINDOW(embed->window), FALSE);

#endif

gtk_window_set_type_hint(GTK_WINDOW(embed->window),

GDK_WINDOW_TYPE_HINT_DOCK);

embed->vbox = gtk_vbox_new(FALSE, 0);

g_object_ref(embed->vbox);

gtk_container_add(GTK_CONTAINER(embed->window), embed->vbox);

gtk_widget_show(embed->vbox);

desktop_message_register(PANEL_CLIENT_MESSAGE,

_embed_on_desktop_message, embed);

return FALSE;

}

/* embed_on_removed */

static gboolean _embed_on_removed(GtkWidget * widget, gpointer data)

{

Embed * embed = data;

size_t i;

#ifdef DEBUG

fprintf(stderr, "DEBUG: %s()\n", __func__);

#endif

for(i = 0; i < embed->widgets_cnt; i++)

{

if(embed->widgets[i].socket != widget)

continue;

memmove(&embed->widgets[i], &embed->widgets[i + 1],

sizeof(EmbedWidget)

* (embed->widgets_cnt - i - 1));

embed->widgets_cnt--;

break;

}

if(embed->widgets_cnt == 0)

{

gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(embed->button),

FALSE);

gtk_widget_set_sensitive(embed->button, FALSE);

}

return FALSE;

}

/* embed_on_toggled */

static void _embed_on_toggled(gpointer data)

{

Embed * embed = data;

PanelAppletHelper * helper = embed->helper;

gint x = 0;

gint y = 0;

gboolean push_in;

#if GTK_CHECK_VERSION(2, 18, 0)

GtkAllocation allocation;

#endif

if(embed->window == NULL)

_embed_on_idle(embed);

if(embed->window == NULL)

return;

helper->position_menu(helper->panel, (GtkMenu *)embed->window, &x, &y,

&push_in);

#if GTK_CHECK_VERSION(2, 18, 0)

gtk_widget_get_allocation(embed->button, &allocation);

x += allocation.x - allocation.width;

if(x < 0)

x = 0;

#endif

gtk_window_move(GTK_WINDOW(embed->window), x, y);

if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(embed->button)))

gtk_widget_show(embed->window);

else

gtk_widget_hide(embed->window);

}