st-preselections.c

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/*
 * Copyright (c) 2004 Jean-Yves Lefort
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of Jean-Yves Lefort nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include <string.h>
#include <glib.h>
#include <glib/gi18n.h>
#include "sg-util.h"
#include "st-action.h"
#include "st-handler.h"
#include "st-handlers-api.h"
#include "st-stream-store.h"
#include "st-util.h"
#include "st-util-api.h"

/*** cpp *********************************************************************/

#define ST_PRESELECTIONS_STREAM(bag) \
  ((STPreselectionsStream *) ST_STREAM((bag)))

/*** type definitions ********************************************************/

typedef struct
{
  STStream	stream;

  char		*name;
  char		*genre;
  char		*homepage;
  char		*url;
} STPreselectionsStream;

enum {
  FIELD_NAME,
  FIELD_GENRE,
  FIELD_HOMEPAGE,
  FIELD_URL
};

typedef struct
{
  STStreamBag	*bag;
  gboolean	taken;
} MakeUniqueInfo;

/*** variable declarations ***************************************************/

STHandler *st_preselections_handler = NULL;

/*** function declarations ***************************************************/

static STPreselectionsStream *st_preselections_stream_new_cb (gpointer data);
static void st_preselections_stream_field_get_cb (STPreselectionsStream *stream,
						  STHandlerField *field,
						  GValue *value,
						  gpointer data);
static void st_preselections_stream_field_set_cb (STPreselectionsStream *stream,
						  STHandlerField *field,
						  const GValue *value,
						  gpointer data);
static void st_preselections_stream_stock_field_get_cb (STPreselectionsStream *stream,
							STHandlerStockField stock_field,
							GValue *value,
							gpointer data);
static gboolean st_preselections_stream_modify_cb (STPreselectionsStream *stream,
						   GSList *fields,
						   GSList *values,
						   gpointer data,
						   GError **err);
static gboolean st_preselections_stream_delete_cb (STPreselectionsStream *stream,
						   gpointer data,
						   GError **err);
static void st_preselections_stream_free_cb (STPreselectionsStream *stream,
					     gpointer data);

static gboolean st_preselections_stream_tune_in_cb (STPreselectionsStream *stream,
						    gpointer data,
						    GError **err);
static gboolean st_preselections_stream_record_cb (STPreselectionsStream *stream,
						   gpointer data,
						   GError **err);
static gboolean st_preselections_stream_browse_cb (STPreselectionsStream *stream,
						   gpointer data,
						   GError **err);

static void st_preselections_init_handler (void);

static void st_preselections_make_unique_names (STStreamBag *bag,
						STStreamStore *preselections);
static gboolean st_preselections_make_unique_name_cb (STStreamStore *store,
						      STStreamBag *bag,
						      gpointer data);
static gboolean st_preselections_make_unique_visible_name_cb (STStreamStore *store,
							      STStreamBag *bag,
							      gpointer data);

/*** implementation **********************************************************/

static STPreselectionsStream *
st_preselections_stream_new_cb (gpointer data)
{
  return g_new0(STPreselectionsStream, 1);
}

static void
st_preselections_stream_field_get_cb (STPreselectionsStream *stream,
				      STHandlerField *field,
				      GValue *value,
				      gpointer data)
{
  switch (field->id)
    {
    case FIELD_NAME:
      g_value_set_string(value, stream->name);
      break;

    case FIELD_GENRE:
      g_value_set_string(value, stream->genre);
      break;

    case FIELD_HOMEPAGE:
      g_value_set_string(value, stream->homepage);
      break;

    case FIELD_URL:
      g_value_set_string(value, stream->url);
      break;

    default:
      g_return_if_reached();
    }
}

static void
st_preselections_stream_field_set_cb (STPreselectionsStream *stream,
				      STHandlerField *field,
				      const GValue *value,
				      gpointer data)
{
  switch (field->id)
    {
    case FIELD_NAME:
      g_free(stream->name);
      stream->name = g_value_dup_string(value);
      break;

    case FIELD_GENRE:
      g_free(stream->genre);
      stream->genre = g_value_dup_string(value);
      break;

    case FIELD_HOMEPAGE:
      g_free(stream->homepage);
      stream->homepage = g_value_dup_string(value);
      break;

    case FIELD_URL:
      g_free(stream->url);
      stream->url = g_value_dup_string(value);
      break;

    default:
      g_return_if_reached();
    }
}

static void
st_preselections_stream_stock_field_get_cb (STPreselectionsStream *stream,
					    STHandlerStockField stock_field,
					    GValue *value,
					    gpointer data)
{
  switch (stock_field)
    {
    case ST_HANDLER_STOCK_FIELD_NAME:
      g_value_set_string(value, stream->name);
      break;

    case ST_HANDLER_STOCK_FIELD_GENRE:
      g_value_set_string(value, stream->genre);
      break;

    case ST_HANDLER_STOCK_FIELD_DESCRIPTION:
      /* nop */
      break;

    case ST_HANDLER_STOCK_FIELD_HOMEPAGE:
      g_value_set_string(value, stream->homepage);
      break;

    case ST_HANDLER_STOCK_FIELD_URI_LIST:
      {
	GValueArray *value_array;
	GValue uri_value = { 0, };

	value_array = g_value_array_new(1);

	g_value_init(&uri_value, G_TYPE_STRING);
	g_value_set_string(&uri_value, stream->url);
	g_value_array_append(value_array, &uri_value);
	g_value_unset(&uri_value);

	g_value_take_boxed(value, value_array);

	break;
      }
    }
}

static gboolean
st_preselections_stream_modify_cb (STPreselectionsStream *stream,
				   GSList *fields,
				   GSList *values,
				   gpointer data,
				   GError **err)
{
  GSList *field = fields;
  GSList *value = values;

  while (field && value)
    {
      st_preselections_stream_field_set_cb(stream, field->data, value->data, NULL);

      field = field->next;
      value = value->next;
    }

  return TRUE;
}

static gboolean
st_preselections_stream_delete_cb (STPreselectionsStream *stream,
				   gpointer data,
				   GError **err)
{
  return TRUE;			/* nop */
}

static void
st_preselections_stream_free_cb (STPreselectionsStream *stream, gpointer data)
{
  g_free(stream->name);
  g_free(stream->homepage);
  g_free(stream->url);