st-bookmarks.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/gi18n.h>
#include <gtk/gtk.h>
#include "sg-util.h"
#include "sgtk-util.h"
#include "st-handler.h"
#include "st-handlers.h"
#include "st-handler-field.h"
#include "st-stream-store.h"
#include "st-util.h"
#include "st-util-api.h"

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

#define ST_BOOKMARKS_STREAM(bag) \
  ((STBookmarksStream *) ST_STREAM((bag)))

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

typedef struct
{
  STStream	stream;

  char		*handler_name;
  STHandler	*handler;
  STStreamBag	*stream_bag;

  GdkPixbuf	*handler_icon;
  char		*name;
  char		*genre;
  char		*description;
} STBookmarksStream;

enum {
  FIELD_HANDLER_NAME,
  FIELD_STREAM_BAG,
  FIELD_HANDLER_ICON,
  FIELD_HANDLER_LABEL,
  FIELD_NAME,
  FIELD_GENRE,
  FIELD_DESCRIPTION,
  FIELD_HOMEPAGE,
  FIELD_URI_LIST
};

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

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

STHandler *st_bookmarks_handler = NULL;

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

static STBookmarksStream *st_bookmarks_stream_new_cb (gpointer data);
static void st_bookmarks_stream_set_handler (STBookmarksStream *stream,
					     STHandler *handler);
static void st_bookmarks_stream_field_get_cb (STBookmarksStream *stream,
					      STHandlerField *field,
					      GValue *value,
					      gpointer data);
static void st_bookmarks_stream_field_set_cb (STBookmarksStream *stream,
					      STHandlerField *field,
					      const GValue *value,
					      gpointer data);
static void st_bookmarks_stream_stock_field_get_cb (STBookmarksStream *stream,
						    STHandlerStockField stock_field,
						    GValue *value,
						    gpointer data);
static gboolean st_bookmarks_stream_modify_cb (STBookmarksStream *stream,
					       GSList *fields,
					       GSList *values,
					       gpointer data,
					       GError **err);
static gboolean st_bookmarks_stream_delete_cb (STBookmarksStream *stream,
					       gpointer data,
					       GError **err);
static void st_bookmarks_stream_free_cb (STBookmarksStream *stream,
					 gpointer data);

static GValueArray *st_bookmarks_value_array_new (STStreamBag *stream_bag);
static STStreamBag *st_bookmarks_stream_new (STHandler *handler,
					     GValueArray *value_array);

static gboolean st_bookmarks_stream_tune_in_cb (STBookmarksStream *stream,
						gpointer data,
						GError **err);
static gboolean st_bookmarks_stream_record_cb (STBookmarksStream *stream,
					       gpointer data,
					       GError **err);
static gboolean st_bookmarks_stream_browse_cb (STBookmarksStream *stream,
					       gpointer data,
					       GError **err);

static void st_bookmarks_make_unique_name (STStreamBag *bag,
					   STStreamStore *bookmarks);
static gboolean st_bookmarks_make_unique_name_cb (STStreamStore *store,
						  STStreamBag *bag,
						  gpointer data);

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

static STBookmarksStream *
st_bookmarks_stream_new_cb (gpointer data)
{
  return g_new0(STBookmarksStream, 1);
}

static void
st_bookmarks_stream_set_handler (STBookmarksStream *stream, STHandler *handler)
{
  g_return_if_fail(stream != NULL);

  stream->handler = handler;
  if (stream->handler)
    {
      GdkPixbuf *pixbuf;

      pixbuf = st_handler_get_pixbuf(stream->handler);
      if (pixbuf)
	stream->handler_icon = sgtk_pixbuf_scale(pixbuf, GTK_ICON_SIZE_MENU);
    }
}

static void
st_bookmarks_stream_field_get_cb (STBookmarksStream *stream,
				  STHandlerField *field,
				  GValue *value,
				  gpointer data)
{
  switch (field->id)
    {
    case FIELD_HANDLER_NAME:
      g_value_set_string(value, stream->handler ? st_handler_get_name(stream->handler) : NULL);
      break;
      
    case FIELD_STREAM_BAG:
      {
	GValueArray *value_array;

	value_array = st_bookmarks_value_array_new(stream->stream_bag);
	g_value_take_boxed(value, value_array);

	break;
      }

    case FIELD_HANDLER_ICON:
      g_value_set_object(value, stream->handler_icon);
      break;
      
    case FIELD_HANDLER_LABEL:
      g_value_set_string(value, stream->handler ? st_handler_get_label(stream->handler) : stream->handler_name);
      break;

    case FIELD_NAME:
      g_value_set_string(value, stream->name);
      break;

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

    case FIELD_DESCRIPTION:
      g_value_set_string(value, stream->description);
      break;

    case FIELD_HOMEPAGE:
      if (stream->stream_bag)
	st_stream_bag_get_stock_field_initialized(stream->stream_bag, ST_HANDLER_STOCK_FIELD_HOMEPAGE, value);
      break;

    case FIELD_URI_LIST:
      if (stream->stream_bag)
	st_stream_bag_get_stock_field_initialized(stream->stream_bag, ST_HANDLER_STOCK_FIELD_URI_LIST, value);
      break;

    default:
      g_return_if_reached();
    }
}

static void
st_bookmarks_stream_field_set_cb (STBookmarksStream *stream,
				  STHandlerField *field,
				  const GValue *value,
				  gpointer data)
{
  switch (field->id)
    {
    case FIELD_HANDLER_NAME:
      stream->handler_name = g_value_dup_string(value);
      st_bookmarks_stream_set_handler(stream, st_handlers_find_by_name(stream->handler_name));
      break;

    case FIELD_STREAM_BAG:
      if (stream->handler)
	{
	  GValueArray *value_array;

	  value_array = g_value_get_boxed(value);
	  stream->stream_bag = st_bookmarks_stream_new(stream->handler, value_array);
	}
      break;

    case FIELD_NAME:
      g_free(stream->name);		/* field is editable */
      stream->name = g_value_dup_string(value);
      break;

    case FIELD_GENRE:
      g_free(stream->genre);		/* field is editable */
      stream->genre = g_value_dup_string(value);
      break;

    case FIELD_DESCRIPTION:
      g_free(stream->description);	/* field is editable */
      stream->description = g_value_dup_string(value);
      break;

    default:
      g_return_if_reached();
    }
}

static void
st_bookmarks_stream_stock_field_get_cb (STBookmarksStream *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:
      g_value_set_string(value, stream->description);
      break;

    case ST_HANDLER_STOCK_FIELD_HOMEPAGE:
      if (stream->stream_bag)
	st_stream_bag_get_stock_field_initialized(stream->stream_bag, ST_HANDLER_STOCK_FIELD_HOMEPAGE, value);
      break;

    case ST_HANDLER_STOCK_FIELD_URI_LIST:
      if (stream->stream_bag)
	st_stream_bag_get_stock_field_initialized(stream->stream_bag, ST_HANDLER_STOCK_FIELD_URI_LIST, value);
      break;
    }
}

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

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

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

  return TRUE;
}

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

/*
 * Create a GValueArray from the values of the underlying stream
 * STREAM_BAG.
 */
static GValueArray *
st_bookmarks_value_array_new (STStreamBag *stream_bag)
{
  GValueArray *value_array;
  
  value_array = g_value_array_new(0);
  if (stream_bag)
    {
      GSList *l;

      g_return_val_if_fail(ST_IS_STREAM_BAG(stream_bag), NULL);

      SG_LIST_FOREACH(l, st_handler_get_fields(stream_bag->handler))
        {
	  STHandlerField *field = l->data;

	  if (! ST_HANDLER_FIELD_IS_VOLATILE(field))
	    {
	      GValue value = { 0, };

	      st_stream_bag_get_field(stream_bag, field, &value);
	      g_value_array_append(value_array, &value);
	      g_value_unset(&value);
	    }
	}
    }