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/*
This file is part of GNUnet.
(C) 2010 Christian Grothoff (and other contributing authors)
GNUnet 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; either version 2, or (at your
option) any later version.
GNUnet 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 GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file src/fs/gnunet-fs-gtk-event_handler.h
* @brief Main event handler for file-sharing
* @author Christian Grothoff
*/
#include "gnunet-fs-gtk-common.h"
/**
* State we keep for each (search) result entry in the
* tree view of a search tab.
*/
struct SearchResult;
/**
* Context we keep for a search tab.
*/
struct SearchTab
{
/**
* This is a doubly-linked list.
*/
struct SearchTab *next;
/**
* This is a doubly-linked list.
*/
struct SearchTab *prev;
/**
* Set in case this is an inner search, otherwise NULL.
*/
struct SearchResult *parent;
/**
* Handle for this search with FS library.
*/
struct GNUNET_FS_SearchContext *sc;
/**
* Text of the search query.
*/
char *query_txt;
/**
* GtkBuilder object for the search tab.
*/
GtkBuilder *builder;
/**
* Frame instance of the search tab.
*/
GtkWidget *frame;
/**
* The widget representing this search in the tab bar (not
* a GtkLabel, contains the actual label and the buttons).
*/
GtkWidget *tab_label;
/**
* Button to stop and close the search.
*/
GtkWidget *close_button;
/**
* Button to clear all entries for downloads that have completed.
*/
GtkWidget *clear_button;
/**
* Button to resume the search.
*/
GtkWidget *play_button;
/**
* Button to pause the search.
*/
GtkWidget *pause_button;
/**
* Textual label in the 'tab_label'
*/
GtkLabel *label;
/**
* Tree store with the search results.
*/
GtkTreeStore *ts;
/**
* Number of results we got for this search.
*/
unsigned int num_results;
};
/**
* Information we keep for each download.
*/
struct DownloadEntry
{
/**
* Download entry of the parent (for recursive downloads),
* NULL if we are either a top-level download (from URI,
* from opened directory, orphaned from search or direct
* search result).
*/
struct DownloadEntry *pde;
/**
* Associated search result, or NULL if we don't belong
* to a search directly (download entry).
*/
struct SearchResult *sr;
/**
* FS handle to control the download.
*/
struct GNUNET_FS_DownloadContext *dc;
/**
* URI for the download.
*/
struct GNUNET_FS_Uri *uri;
/**
* Meta data for the download.
*/
struct GNUNET_CONTAINER_MetaData *meta;
/**
* Where in the tree view is this download being displayed.
*/
GtkTreeRowReference *rr;
/**
* Tree store where we are stored.
*/
GtkTreeStore *ts;
/**
* Tab where this download is currently on display.
*/
struct SearchTab *tab;
/**
* Has the download completed (or errored)?
*/
int is_done;
};
/**
* Setup a new top-level entry in the URI tab. If necessary, create
* the URI tab first.
*
* @param iter set to the new entry
* @param srp set to search result
* @param meta metadata for the new entry
* @param uri URI for the new entry
* @return NULL on error, otherwise search tab with the new entry
*/
struct SearchTab *
GNUNET_GTK_add_to_uri_tab (GtkTreeIter * iter, struct SearchResult **sr,
const struct GNUNET_CONTAINER_MetaData *meta,
const struct GNUNET_FS_Uri *uri);
/**
* Add a search result to the given search tab.
*
* @param tab search tab to extend, never NULL
* @param iter set to position where search result is added (OUT only)
* @param parent_rr reference to parent entry in search tab, NULL for normal
* search results,
* @param uri uri to add, can be NULL for top-level entry of a directory opened from disk
* (in this case, we don't know the URI and should probably not
* bother to calculate it)
* @param meta metadata of the entry
* @param result associated FS search result (can be NULL if this result
* was part of a directory)
* @param applicability_rank how relevant is the result
* @return struct representing the search result (also stored in the tree
* model at 'iter')
*/
struct SearchResult *
GNUNET_GTK_add_search_result (struct SearchTab *tab, GtkTreeIter * iter,
GtkTreeRowReference * parent_rr,
const struct GNUNET_FS_Uri *uri,
const struct GNUNET_CONTAINER_MetaData *meta,
struct GNUNET_FS_SearchResult *result,
uint32_t applicability_rank);
/**
* Notification of FS to a client about the progress of an
* operation. Callbacks of this type will be used for uploads,
* downloads and searches. Some of the arguments depend a bit
* in their meaning on the context in which the callback is used.
*
* @param cls closure
* @param info details about the event, specifying the event type
* and various bits about the event
* @return client-context (for the next progress call
* for this operation; should be set to NULL for
* SUSPEND and STOPPED events). The value returned
* will be passed to future callbacks in the respective
* field in the GNUNET_FS_ProgressInfo struct.
*/
void *
GNUNET_GTK_fs_event_handler (void *cls,
const struct GNUNET_FS_ProgressInfo *info);
/* end of gnunet-fs-gtk-event_handler.h */
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