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/*
This file is part of GNUnet.
Copyright (C) 2010 GNUnet e.V.
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 3, 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
/**
* @file src/fs/gnunet-fs-gtk_event-handler.h
* @brief Main event handler for file-sharing
* @author Christian Grothoff
*/
#ifndef GNUNET_FS_GTK_EVENT_HANDLER_H
#define GNUNET_FS_GTK_EVENT_HANDLER_H
#include "gnunet-fs-gtk_common.h"
#include "gnunet-fs-gtk.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 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;
/**
* Animation handle associated with the tree store.
*/
struct GNUNET_GTK_AnimationTreeViewHandle *atv;
/**
* 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;
/**
* Where in the download tab is this result? References the
* #downloads_treestore.
*/
GtkTreeRowReference *rr;
/**
* FS handle to control the download, NULL if the download
* has not yet started.
*/
struct GNUNET_FS_DownloadContext *dc;
/**
* URI for the download, never NULL.
*/
struct GNUNET_FS_Uri *uri;
/**
* Suggested (or selected) filename for the download on the
* local disk, or NULL for on suggestion.
*/
char *filename;
/**
* Is this a recursive download?
*/
int is_recursive;
/**
* Is this a directory? (#GNUNET_SYSERR is used for "maybe"!)
*/
int is_directory;
/**
* Desired (default) anonymity level.
*/
uint32_t anonymity;
/**
* Has the download completed (or failed)?
*/
int is_done;
};
/**
* Information we keep for each search result entry in any search tab.
* An entry like this is also generated for downloads by-URI. Used to
* quickly identify the tab and row of the result; stored in the
* user-context of the FS library for the search result.
*/
struct SearchResult
{
/**
* If this search result has a manually-activated probe,
* we keep it in the 'pr_head' list.
*/
struct SearchResult *next;
/**
* If this search result has a manually-activated probe,
* we keep it in the 'pr_head' list.
*/
struct SearchResult *prev;
/**
* URI corresponding to the result.
*/
struct GNUNET_FS_Uri *uri;
/**
* Meta data associated with the result.
*/
struct GNUNET_FS_MetaData *meta;
/**
* Where in the tab is this result?
*/
GtkTreeRowReference *rr;
/**
* Tab storing this result.
*/
struct SearchTab *tab;
/**
* Search result for top-level results and
* namespace-update results.
*/
struct GNUNET_FS_SearchResult *result;
/**
* Associated search result we generated for probing;
* thus, we need to run "GNUNET_FS_probe_cancel" on it
* once we are done. Only used if 'result' is NULL.
*/
struct GNUNET_FS_SearchResult *probe;
/**
* Associated download, or NULL for none.
*/
struct DownloadEntry *download;
};
/**
* Head of search results with a manually-activated probe.
*/
extern struct SearchResult *pl_head;
/**
* Tail of search results with a manually-activated probe.
*/
extern struct SearchResult *pl_tail;
/**
* The "GNUNET_GTK_file_sharing_downloads_tree_store" with the
* information about active (or completed) downloads.
*/
extern GtkTreeStore *downloads_treestore;
/**
* Setup a new top-level entry in the URI/orphan tab. If necessary, create
* the URI tab first.
*
* @param anonymity anonymity level to use for probes
* @param meta metadata for the new entry
* @param uri URI for the new entry
* @return the search result that was set up
*/
struct SearchResult *
GNUNET_GTK_add_to_uri_tab (uint32_t anonymity,
const struct GNUNET_FS_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 anonymity anonymity level to use for probes for this result
* @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,
uint32_t anonymity,
GtkTreeRowReference *parent_rr,
const struct GNUNET_FS_Uri *uri,
const struct GNUNET_FS_MetaData *meta,
struct GNUNET_FS_SearchResult *result,
uint32_t applicability_rank);
void
GNUNET_FS_GTK_set_item_downloaded_name (GtkTreeStore *ts,
GtkTreeRowReference *rr,
gchar *filename);
/**
* 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);
/**
* Close the 'uri_tab'.
*/
void
GNUNET_FS_GTK_close_uri_tab_ ();
/**
* Update the connection indicator widget.
*
* @param main_ctx context
* @param connected TRUE if connected to arm, FALSE otherwise
* @param tooltip new tooltip text
*/
void
GNUNET_FS_GTK_update_connection_indicator (
struct GNUNET_GTK_MainWindowContext *main_ctx,
gboolean connected,
const gchar *tooltip);
#endif
/* end of gnunet-fs-gtk-event_handler.h */
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