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|
/*
This file is part of GNUnet.
(C) 2010, 2011, 2012 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.c
* @brief Main event handler for file-sharing
* @author Christian Grothoff
*/
#include "gnunet-fs-gtk.h"
#include "gnunet-fs-gtk_download-save-as.h"
#include "gnunet-fs-gtk_event-handler.h"
/**
* We have a single tab where we display publishing operations.
* So there is only one instance of this struct.
*/
struct PublishTab
{
/**
* Frame for the tab.
*/
GtkWidget *frame;
/**
* Associated builder.
*/
GtkBuilder *builder;
/**
* Associated tree store.
*/
GtkTreeStore *ts;
};
/**
* Information we keep for each file or directory being published.
* Used to quickly identify the tab and row of the operation; stored
* in the user-context of the FS library for the publish operation.
*/
struct PublishEntry
{
/**
* Associated FS publish operation.
*/
struct GNUNET_FS_PublishContext *pc;
/**
* Tab storing this entry.
*/
struct PublishTab *tab;
/**
* Where in the tab is this entry?
*/
GtkTreeRowReference *rr;
/**
* URI of the file (set after completion).
*/
struct GNUNET_FS_Uri *uri;
/**
* Is this the top-level entry for the publish operation
* or sub-operation?
*/
int is_top;
};
/**
* 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
{
/**
* 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 download, or NULL for none.
*/
struct DownloadEntry *download;
};
/**
* Head of linked list of tabs for searches.
*/
static struct SearchTab *search_tab_head;
/**
* Tail of linked list of tabs for searches.
*/
static struct SearchTab *search_tab_tail;
/**
* Special tab we use to for downloads-by-URIs and downloads
* where the search tab has been closed ("parent lost").
*/
static struct SearchTab *uri_tab;
/**
* Special tab we use to store publishing operations.
*/
static struct PublishTab *publish_tab;
/**
* Row reference for the current search context menu.
* FIXME-UNCLEAN: de-globalize?
*/
static GtkTreeRowReference *current_context_row_reference;
/**
* Search tab used for the current search context menu.
* FIXME-UNCLEAN: de-globalize?
*/
static struct SearchTab *current_context_search_tab;
/* ***************** Search event handling ****************** */
/**
* Clear the metadata list and the preview widget.
*/
static void
clear_metadata_display ()
{
GtkImage *image;
GtkListStore *ms;
image =
GTK_IMAGE (GNUNET_FS_GTK_get_main_window_object
("GNUNET_GTK_main_window_preview_image"));
gtk_image_clear (image);
ms = GTK_LIST_STORE (GNUNET_FS_GTK_get_main_window_object
("GNUNET_GTK_meta_data_list_store"));
gtk_list_store_clear (ms);
}
/**
* This should get the default download directory (so that GNUnet
* won't offer the user to download files to the 'bin' subdirectory,
* or whatever is the cwd). Returns NULL on failure (such as
* non-existend directory). Should also preserve the last setting (so
* if the user saves files somewhere else, next time we default to
* somewhere else, at least until application restart, or maybe even
* between application restarts).
*
* Fills the 'buffer' up to 'size' bytes, returns a pointer to it.
*/
static char *
get_default_download_directory (char *buffer, size_t size)
{
/* FIXME-FEATURE: implement... */
return NULL;
}
/**
* Called recursively to build a suggested filename by prepending
* suggested names for its parent directories (if any).
*
* @param tm tree model this function gets the data from
* @param iter current position in the tree, for which we want a suggested filename
* @param top GNUNET_YES for the original call to this function,
* GNUNET_NO for recursive calls; used to decide if the
* current call is eligible to set 'anonymity' and 'local_parents'
* @param local_parents set to GNUNET_YES if all parents are directories, and are downloaded.
* @param anonymity set to the anonymity level of the closest ancestor download (if any);
* set to "-1" for uninitialized initially (will be left at -1 if
* no suitable parent download was found)
* @param filename_is_absolute set to GNUNET_YES if the suggestion is an absolute filename,
* GNUNET_NO for relative filenames (gotten from meta data)
* @return suggested filename, possibly NULL
*/
static char *
get_suggested_filename_anonymity (GtkTreeModel *tm,
GtkTreeIter *iter,
int top,
int *local_parents,
int *anonymity,
int *filename_is_absolute)
{
char *result;
char *dirname;
char *local_filename;
char *filename;
int downloaded_anonymity;
int have_a_parent;
struct GNUNET_CONTAINER_MetaData *meta;
GtkTreeIter parent;
const char *basename;
char *dot;
/* FIXME-BUG-MAYBE: this function is likely responsible for not always
suggesting the best filename... To be investigated some more... */
gtk_tree_model_get (tm, iter, 0, &meta,
15, &local_filename,
16, &downloaded_anonymity,
-1);
if ( (NULL == local_filename) && (GNUNET_NO == top) )
*local_parents = GNUNET_NO;
if ( (downloaded_anonymity != -1) && (*anonymity == -1) && (GNUNET_NO == top) )
*anonymity = downloaded_anonymity;
if (gtk_tree_model_iter_parent (tm, &parent, iter))
{
have_a_parent = GNUNET_YES;
dirname = get_suggested_filename_anonymity (tm, &parent, GNUNET_NO,
local_parents, anonymity,
filename_is_absolute);
}
else
{
have_a_parent = GNUNET_NO;
dirname = NULL;
if (GNUNET_NO == top)
*local_parents = GNUNET_NO;
}
if (local_filename == NULL)
{
filename = GNUNET_FS_meta_data_suggest_filename (meta);
}
else
{
/* This directory was downloaded as /foo/bar/baz/somedirname
* Hopefully, "somedirname" is actually "somedir.gnd"
* We need to strip the ".gnd" part to get "somedir", which is
* what we're going to use instead of suggested original filename
* Without the .gnd extension we're going to just use a copy
* of the directory file name - and that would fail. Sad.
*/
if ( (NULL == dirname) && (GNUNET_NO == have_a_parent))
{
/* This is the ealderlest parent directory. Use absolute path. */
basename = (const char *) local_filename;
*filename_is_absolute = GNUNET_YES;
}
else
{
basename = GNUNET_STRINGS_get_short_name (local_filename);
}
if ( (NULL != basename) && (strlen (basename) > 0) )
{
filename = GNUNET_strdup (basename);
dot = strrchr (filename, '.');
if (dot)
*dot = '\0';
}
else
{
filename = GNUNET_FS_meta_data_suggest_filename (meta);
}
}
if ( (NULL != dirname) && (NULL != filename) )
{
GNUNET_asprintf (&result, "%s%s%s", dirname, DIR_SEPARATOR_STR, filename);
GNUNET_free (filename);
GNUNET_free (dirname);
return result;
}
if (NULL != filename)
return filename;
return NULL;
}
/**
* This function is called when the user double-clicks on a search
* result. Begins the download, if necessary by opening the "save as"
* window.
*
* @param tree_view tree view with the details
* @param path path selecting which entry we want to download
* @param tab the search tab where the user triggered the download request
* @param is_recursive was the request for a recursive download?
*/
static void
start_download (GtkTreeView *tree_view,
GtkTreePath *path,
struct SearchTab *tab,
int is_recursive)
{
GtkTreeModel *tm;
GtkTreeIter iter;
struct GNUNET_FS_Uri *uri;
struct GNUNET_CONTAINER_MetaData *meta;
struct SearchResult *sr;
gchar *mime;
struct DownloadContext *dc;
char *buf = NULL;
char *tmp;
size_t tmplen;
char cwd[FILENAME_MAX];
char *download_directory;
char *filename;
int local_parents;
int have_a_suggestion;
int anonymity;
int filename_is_absolute;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Starting a %sdownload\n",
is_recursive ? "recursive " : "");
GNUNET_assert (tab != NULL);
tm = gtk_tree_view_get_model (tree_view);
if (TRUE != gtk_tree_model_get_iter (tm, &iter, path))
{
GNUNET_break (0);
return;
}
gtk_tree_model_get (tm, &iter, 0, &meta, 1, &uri, 9, &sr, 10, &mime, -1);
if (NULL == uri)
{
/* user clicked on directory that was opened (not downloaded!), so we
have no URI and downloading makes no sense. Ignore! */
g_free (mime);
return;
}
if (!(GNUNET_FS_uri_test_chk (uri) || GNUNET_FS_uri_test_loc (uri)))
{
/* can only download chk/loc URIs, ignore */
g_free (mime);
return;
}
download_directory = get_default_download_directory (cwd, sizeof (cwd));
/* If no download directory is known, try working directory */
if (download_directory == NULL)
download_directory = getcwd (cwd, sizeof (cwd));
/* Calculate suggested filename */
local_parents = GNUNET_YES;
anonymity = -1;
filename_is_absolute = GNUNET_NO;
filename = get_suggested_filename_anonymity (tm, &iter, GNUNET_YES,
&local_parents, &anonymity,
&filename_is_absolute);
have_a_suggestion = GNUNET_NO;
if (NULL != download_directory)
{
if (NULL == filename)
{
buf = GNUNET_strdup (download_directory);
}
else
{
have_a_suggestion = GNUNET_YES;
if (filename_is_absolute)
GNUNET_asprintf (&tmp, "%s", filename);
else
GNUNET_asprintf (&tmp, "%s%s%s",
download_directory,
DIR_SEPARATOR_STR,
filename);
tmplen = strlen (tmp);
/* now, if we have a directory, replace trailing '/' with ".gnd" */
if (GNUNET_YES ==
GNUNET_FS_meta_data_test_for_directory (meta))
{
if ( (tmp[tmplen-1] == '/') ||
(tmp[tmplen-1] == '\\') )
tmp[tmplen-1] = '\0';
GNUNET_asprintf (&buf,
"%s%s",
tmp,
GNUNET_FS_DIRECTORY_EXT);
GNUNET_free (tmp);
}
else
{
buf = tmp;
}
}
}
GNUNET_free_non_null (filename);
/* now setup everything for the save-as dialog */
dc = GNUNET_malloc (sizeof (struct DownloadContext));
dc->uri = GNUNET_FS_uri_dup (uri);
dc->mime = mime;
dc->filename = buf;
dc->meta = GNUNET_CONTAINER_meta_data_duplicate (meta);
dc->rr = gtk_tree_row_reference_new (tm, path);
dc->sr = sr->result;
dc->anonymity = anonymity;
dc->is_recursive = is_recursive;
dc->tab = tab;
if ( (GNUNET_YES == local_parents) &&
(GNUNET_YES == have_a_suggestion) )
/* Skip the dialog, call directly */
GNUNET_FS_GTK_download_context_start_download (dc);
else
GNUNET_FS_GTK_open_download_as_dialog (dc);
}
/**
* An item was selected from the context menu; destroy the menu shell.
*
* @param menushell menu to destroy
* @parma user_data the 'struct DownloadEntry' for the menu (unused)
*/
static void
search_list_popup_selection_done (GtkMenuShell *menushell,
gpointer user_data)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Item selected in menu shell %p, destroying it.\n",
menushell);
gtk_widget_destroy (GTK_WIDGET (menushell));
}
/**
* This function is called when the user double-clicks on a search
* result. Begins the download, if necessary by opening the "save as"
* window.
*
* @param tree_view tree view with the details
* @param path path selecting which entry we want to download
* @param column unused entry specifying which column the mouse was in
* @param user_data the 'struct SearchTab' that was activated
*/
void
GNUNET_FS_GTK_search_treeview_row_activated (GtkTreeView * tree_view,
GtkTreePath * path,
GtkTreeViewColumn * column,
gpointer user_data)
{
struct SearchTab *tab = user_data;
start_download (tree_view, path, tab, GNUNET_NO);
}
/**
* "Download" was selected in the current search context menu.
*
* @param item the 'download' menu item
* @parma user_data the 'struct DownloadEntry' to download.
*/
static void
start_download_ctx_menu (GtkMenuItem *item, gpointer user_data)
{
GtkTreePath *path;
GtkTreeView *tv;
if (current_context_row_reference == NULL)
{
GNUNET_break (0);
return;
}
path = gtk_tree_row_reference_get_path (current_context_row_reference);
gtk_tree_row_reference_free (current_context_row_reference);
current_context_row_reference = NULL;
tv = GTK_TREE_VIEW (gtk_builder_get_object
(current_context_search_tab->builder,
"_search_result_frame"));
start_download (tv, path, current_context_search_tab, GNUNET_NO);
gtk_tree_path_free (path);
current_context_search_tab = NULL;
}
/**
* "Download recursively" was selected in the current search context menu.
*
* @param item the 'download recursively' menu item
* @parma user_data the 'struct DownloadEntry' to download.
*/
static void
start_download_recursively_ctx_menu (GtkMenuItem *item, gpointer user_data)
{
GtkTreePath *path;
GtkTreeView *tv;
if (current_context_row_reference == NULL)
{
GNUNET_break (0);
return;
}
path = gtk_tree_row_reference_get_path (current_context_row_reference);
gtk_tree_row_reference_free (current_context_row_reference);
current_context_row_reference = NULL;
tv = GTK_TREE_VIEW (gtk_builder_get_object
(current_context_search_tab->builder,
"_search_result_frame"));
start_download (tv, path, current_context_search_tab, GNUNET_YES);
gtk_tree_path_free (path);
current_context_search_tab = NULL;
}
/**
* Download "abort" was selected in the current search context menu.
*
* @param item the 'abort' menu item
* @parma user_data the 'struct DownloadEntry' to abort.
*/
static void
abort_download_ctx_menu (GtkMenuItem *item, gpointer user_data)
{
struct DownloadEntry *de = user_data;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Aborting download DE=%p\n",
de);
GNUNET_assert (de->dc != NULL);
GNUNET_FS_download_stop (de->dc, GNUNET_YES);
current_context_search_tab = NULL;
}
/**
* Copy current URI to clipboard was selected in the current context menu.
*
* @param item the 'copy-to-clipboard' menu item
* @parma user_data NULL
*/
static void
copy_uri_to_clipboard_ctx_menu (GtkMenuItem *item, gpointer user_data)
{
GtkTreePath *path;
GtkTreeView *tv;
GtkTreeModel *tm;
GtkTreeIter iter;
struct GNUNET_FS_Uri *uri;
char *uris;
GtkClipboard *cb;
if (NULL == current_context_row_reference)
{
GNUNET_break (0);
return;
}
path = gtk_tree_row_reference_get_path (current_context_row_reference);
gtk_tree_row_reference_free (current_context_row_reference);
current_context_row_reference = NULL;
tv = GTK_TREE_VIEW (gtk_builder_get_object
(current_context_search_tab->builder,
"_search_result_frame"));
tm = gtk_tree_view_get_model (tv);
if (! gtk_tree_model_get_iter (tm, &iter, path))
{
GNUNET_break (0);
gtk_tree_path_free (path);
return;
}
gtk_tree_model_get (tm, &iter, 1, &uri, -1);
gtk_tree_path_free (path);
current_context_search_tab = NULL;
if (uri == NULL)
{
GNUNET_break (0);
return;
}
uris = GNUNET_FS_uri_to_string (uri);
cb = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
gtk_clipboard_set_text (cb, uris, -1);
gtk_clipboard_store (cb);
GNUNET_free (uris);
}
/**
* Context menu was requested for a search result list.
* Compute which menu items are applicable and display
* an appropriate menu.
*
* @param tm tree model underlying the tree view where the event happened
* @param tab tab where the event happened
* @param event_button the event
* @return FALSE if no menu could be popped up,
* TRUE if there is now a pop-up menu
*/
static gboolean
search_list_popup (GtkTreeModel *tm,
struct SearchTab *tab,
gint init_button,
guint32 event_time,
GtkTreeIter *iter)
{
GtkMenu *menu;
GtkWidget *child;
GtkTreePath *path;
struct SearchResult *sr;
struct GNUNET_FS_Uri *uri;
/* FIXME-UNCLEAN: move these to some menu context struct
(de-globalize) */
current_context_search_tab = tab;
if (current_context_row_reference != NULL)
{
gtk_tree_row_reference_free (current_context_row_reference);
current_context_row_reference = NULL;
}
path = gtk_tree_model_get_path (tm, iter);
current_context_row_reference = gtk_tree_row_reference_new (tm, path);
gtk_tree_path_free (path);
gtk_tree_model_get (tm, iter, 1, &uri, 9, &sr, -1);
/* FIXME-BUG: 'sr' can be NULL here, somehow some code fails to setup the record.. */
if (NULL == sr)
{
/* FIXME-BUG: this prevents the crash for now, but does not solve the problem */
GNUNET_break (0);
return FALSE;
}
menu = GTK_MENU (gtk_menu_new ());
if ( (NULL == sr->download) &&
(NULL != uri) )
{
/* only display download menus if there is a URI */
child = gtk_menu_item_new_with_label (_("_Download"));
g_signal_connect (child, "activate",
G_CALLBACK (start_download_ctx_menu), NULL);
gtk_label_set_use_underline (GTK_LABEL
(gtk_bin_get_child (GTK_BIN (child))),
TRUE);
gtk_widget_show (child);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), child);
child = gtk_menu_item_new_with_label (_("Download _recursively"));
g_signal_connect (child, "activate",
G_CALLBACK (start_download_recursively_ctx_menu), NULL);
gtk_label_set_use_underline (GTK_LABEL
(gtk_bin_get_child (GTK_BIN (child))),
TRUE);
gtk_widget_show (child);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), child);
}
if (NULL != sr->download)
{
child = gtk_menu_item_new_with_label (_("_Abort download"));
g_signal_connect (child, "activate",
G_CALLBACK (abort_download_ctx_menu), sr->download);
gtk_label_set_use_underline (GTK_LABEL
(gtk_bin_get_child (GTK_BIN (child))),
TRUE);
gtk_widget_show (child);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), child);
}
if (NULL != uri)
{
child = gtk_menu_item_new_with_label (_("_Copy URI to Clipboard"));
g_signal_connect (child, "activate",
G_CALLBACK (copy_uri_to_clipboard_ctx_menu), NULL);
gtk_label_set_use_underline (GTK_LABEL
(gtk_bin_get_child (GTK_BIN (child))), TRUE);
gtk_widget_show (child);
}
g_signal_connect (menu, "selection-done",
G_CALLBACK (search_list_popup_selection_done), NULL);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), child);
gtk_menu_popup (menu, NULL, NULL, NULL, NULL, init_button, event_time);
return TRUE;
}
/**
* We got a 'popup-menu' event, display the context menu.
*
* @param widget the tree view where the event happened
* @param user_data the 'struct SearchTab' of the tree view
* @return FALSE if no menu could be popped up,
* TRUE if there is now a pop-up menu
*/
gboolean
GNUNET_FS_GTK_search_treeview_popup_menu (GtkWidget *widget,
gpointer user_data)
{
GtkTreeView *tv = GTK_TREE_VIEW (widget);
struct SearchTab *tab = user_data;
GtkTreeSelection *sel;
GtkTreeIter iter;
GtkTreeModel *tm;
sel = gtk_tree_view_get_selection (tv);
if (! gtk_tree_selection_get_selected (sel, &tm, &iter))
return FALSE; /* nothing selected */
return search_list_popup (tm, tab, 0, gtk_get_current_event_time (), &iter);
}
/**
* We got a right-click on the search result list. Display the context
* menu.
*
* @param widget the GtkTreeView with the search result list
* @param event the event, we only care about button events
* @param user_data the 'struct SearchTab' the widget is in
* @return FALSE if no menu could be popped up,
* TRUE if there is now a pop-up menu
*/
gboolean
GNUNET_FS_GTK_search_treeview_button_press_event (GtkWidget * widget,
GdkEvent * event,
gpointer user_data)
{
GtkTreeView *tv = GTK_TREE_VIEW (widget);
GdkEventButton *event_button = (GdkEventButton *) event;
struct SearchTab *tab = user_data;
GtkTreeModel *tm;
GtkTreePath *path;
GtkTreeIter iter;
if ( (event->type != GDK_BUTTON_PRESS) ||
(event_button->button != 3) )
return FALSE; /* not a right-click */
if (! gtk_tree_view_get_path_at_pos (tv,
event_button->x, event_button->y,
&path, NULL, NULL, NULL))
return FALSE; /* click outside of area with values, ignore */
tm = gtk_tree_view_get_model (tv);
if (! gtk_tree_model_get_iter (tm, &iter, path))
return FALSE; /* not sure how we got a path but no iter... */
gtk_tree_path_free (path);
return search_list_popup (tm, tab,
event_button->button,
event_button->time,
&iter);
}
/**
* Recalculate and update the label for a search, as we have
* received additional search results.
*
* @param tab search tab for which we should update the label
*/
static void
update_search_label (struct SearchTab *tab)
{
char *label_text;
while (tab->parent != NULL)
tab = tab->parent->tab;
if (tab->num_results > 0)
GNUNET_asprintf (&label_text, "%.*s%s (%u)", 20, tab->query_txt,
strlen (tab->query_txt) > 20 ? "..." : "",
tab->num_results);
else
GNUNET_asprintf (&label_text, "%.*s%s", 20, tab->query_txt,
strlen (tab->query_txt) > 20 ? "..." : "");
gtk_label_set_text (tab->label, label_text);
gtk_widget_set_tooltip_text (GTK_WIDGET (tab->label), tab->query_txt);
GNUNET_free (label_text);
}
/**
* Close a search tab and free associated state. Assumes that the
* respective tree model has already been cleaned up (this just
* updates the notebook and frees the 'tab' itself).
*
* @param tab search tab to close
*/
static void
close_search_tab (struct SearchTab *tab)
{
GtkNotebook *notebook;
int index;
int i;
if (tab->parent != NULL)
{
/* not a top-level search (namespace update search), do not close
tab here! */
GNUNET_free (tab);
return;
}
clear_metadata_display ();
notebook =
GTK_NOTEBOOK (GNUNET_FS_GTK_get_main_window_object
("GNUNET_GTK_main_window_notebook"));
index = -1;
for (i = gtk_notebook_get_n_pages (notebook) - 1; i >= 0; i--)
if (tab->frame == gtk_notebook_get_nth_page (notebook, i))
index = i;
gtk_notebook_remove_page (notebook, index);
g_object_unref (tab->builder);
GNUNET_free (tab->query_txt);
GNUNET_CONTAINER_DLL_remove (search_tab_head, search_tab_tail, tab);
if (tab == uri_tab)
uri_tab = NULL;
GNUNET_free (tab);
}
/**
* Free a particular search result and remove the respective
* entries from the respective tree store. This function
* is called when a search is stopped to clean up the state
* of the tab.
*
* @param sr the search result to clean up
*/
static void
free_search_result (struct SearchResult *sr)
{
GtkTreePath *tp;
GtkTreeModel *tm;
GtkTreeIter iter;
struct GNUNET_FS_Uri *uri;
struct GNUNET_CONTAINER_MetaData *meta;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Freeing a search result SR=%p\n",
sr);
if ( (NULL == sr) ||
(NULL == sr->rr) ||
(NULL == (tm = gtk_tree_row_reference_get_model (sr->rr))) ||
(NULL == (tp = gtk_tree_row_reference_get_path (sr->rr))) )
{
GNUNET_break (0);
return;
}
if (! gtk_tree_model_get_iter (tm, &iter, tp))
{
GNUNET_break (0);
gtk_tree_path_free (tp);
return;
}
gtk_tree_path_free (tp);
gtk_tree_model_get (tm, &iter, 0, &meta, 1, &uri, -1);
if (uri != NULL)
GNUNET_FS_uri_destroy (uri);
if (meta != NULL)
GNUNET_CONTAINER_meta_data_destroy (meta);
gtk_tree_row_reference_free (sr->rr);
(void) gtk_tree_store_remove (GTK_TREE_STORE (tm), &iter);
GNUNET_free (sr);
}
/**
* Selected row has changed in search result tree view, update preview
* and metadata areas.
*
* @param tv the tree view in a search tab where the selection changed
* @param user_data the 'struct SearchTab' that contains the tree view
*/
void
GNUNET_FS_GTK_search_treeview_cursor_changed (GtkTreeView *tv,
gpointer user_data)
{
struct SearchTab *tab = user_data;
GtkImage *image;
GtkListStore *ms;
GtkTreeSelection *sel;
GtkTreeModel *model;
GtkTreeIter iter;
struct GNUNET_CONTAINER_MetaData *meta;
GdkPixbuf *pixbuf;
GNUNET_assert (tab->query_txt != NULL);
image =
GTK_IMAGE (GNUNET_FS_GTK_get_main_window_object
("GNUNET_GTK_main_window_preview_image"));
ms = GTK_LIST_STORE (GNUNET_FS_GTK_get_main_window_object
("GNUNET_GTK_meta_data_list_store"));
sel = gtk_tree_view_get_selection (tv);
gtk_list_store_clear (ms);
if (! gtk_tree_selection_get_selected (sel, &model, &iter))
{
/* nothing selected, clear preview */
gtk_image_clear (image);
return;
}
meta = NULL;
pixbuf = NULL;
gtk_tree_model_get (model, &iter, 0, &meta, 3, &pixbuf, -1);
if (NULL != pixbuf)
{
gtk_image_set_from_pixbuf (image, pixbuf);
g_object_unref (G_OBJECT (pixbuf));
}
if (NULL != meta)
GNUNET_CONTAINER_meta_data_iterate (meta,
&GNUNET_FS_GTK_add_meta_data_to_list_store,
ms);
}
/**
* Page switched in main notebook, update thumbnail and
* metadata views.
*
* @param dummy widget emitting the event, unused
* @param data master Gtk builder, unused
*/
void
GNUNET_GTK_main_window_notebook_switch_page_cb (GtkWidget * dummy,
gpointer data)
{
GtkNotebook *notebook;
gint page;
GtkWidget *w;
struct SearchTab *tab;
GtkImage *image;
GtkListStore *ms;
GtkTreeView *tv;
notebook =
GTK_NOTEBOOK (GNUNET_FS_GTK_get_main_window_object
("GNUNET_GTK_main_window_notebook"));
page = gtk_notebook_get_current_page (notebook);
w = gtk_notebook_get_nth_page (notebook, page);
for (tab = search_tab_head; NULL != tab; tab = tab->next)
{
if (tab->frame != w)
continue;
tv = GTK_TREE_VIEW (gtk_builder_get_object
(tab->builder, "_search_result_frame"));
GNUNET_FS_GTK_search_treeview_cursor_changed (tv, tab);
return;
}
/* active tab is not a search tab (likely the 'publish' tab),
clear meta data and preview widgets */
image =
GTK_IMAGE (GNUNET_FS_GTK_get_main_window_object
("GNUNET_GTK_main_window_preview_image"));
gtk_image_clear (image);
ms = GTK_LIST_STORE (GNUNET_FS_GTK_get_main_window_object
("GNUNET_GTK_meta_data_list_store"));
gtk_list_store_clear (ms);
}
/**
* User clicked on the 'close' button for a search tab. Tell FS to stop the search.
*
* @param button the 'close' button
* @param user_data the 'struct SearchTab' of the tab to close
*/
void
GNUNET_FS_GTK_search_result_close_button_clicked (GtkButton *button, gpointer user_data)
{
struct SearchTab *tab = user_data;
struct GNUNET_FS_SearchContext *sc;
sc = tab->sc;
if (NULL == sc)
{
GNUNET_break (0);
return;
}
tab->sc = NULL;
GNUNET_FS_search_stop (sc);
gtk_widget_hide (GTK_WIDGET (button));
gtk_widget_hide (tab->pause_button);
gtk_widget_hide (tab->play_button);
}
/**
* The user clicked on the 'pause' button for a search tab. Tell FS to pause the search.
*
* @param button the 'pause' button
* @param user_data the 'struct SearchTab' of the tab to pause
*/
void
GNUNET_FS_GTK_search_result_pause_button_clicked (GtkButton *button, gpointer user_data)
{
struct SearchTab *tab = user_data;
if (NULL == tab->sc)
{
GNUNET_break (0);
return;
}
GNUNET_FS_search_pause (tab->sc);
gtk_widget_show (tab->play_button);
gtk_widget_hide (tab->pause_button);
}
/**
* The user clicked on the 'resume' button for a search tab. Tell FS to resume the search.
*
* @param button the 'resume' button
* @param user_data the 'struct SearchTab' of the tab to resume
*/
void
GNUNET_FS_GTK_search_result_play_button_clicked (GtkButton * button, gpointer user_data)
{
struct SearchTab *tab = user_data;
if (NULL == tab->sc)
{
GNUNET_break (0);
return;
}
GNUNET_FS_search_continue (tab->sc);
gtk_widget_show (tab->pause_button);
gtk_widget_hide (tab->play_button);
}
/**
* User clicked on the 'clean' button of a search tab.
* Stop completed downloads (or those that failed). Should
* iterate over the underlying tree store and stop all
* completed entries. Furthermore, if the resulting tree
* store is empty and has no search associated with it,
* the tab should be closed.
*
* @param button the button pressed by the user
* @param user_data the 'struct SearchTab' of the respective tab to clean up
*/
void
GNUNET_FS_GTK_search_result_clear_button_clicked (GtkButton * button, gpointer user_data)
{
struct SearchTab *tab = user_data;
struct SearchResult *sr;
GtkTreeModel *tm;
GtkTreeIter iter;
tm = GTK_TREE_MODEL (tab->ts);
if (TRUE != gtk_tree_model_get_iter_first (tm, &iter))
return;
/* FIXME-BUG: this is a tree, what about cleaning up
of the children? */
do
{
gtk_tree_model_get (tm, &iter, 9, &sr, -1);
if ( (sr->download != NULL) &&
(sr->download->is_done == GNUNET_YES) )
{
/* got a finished download, stop it */
GNUNET_FS_download_stop (sr->download->dc, GNUNET_YES);
}
if ( (NULL == sr->download) &&
(NULL == sr->result) )
{
/* no active download and no associated FS-API search result;
so this must be some left-over entry from an opened
directory; clean it up */
free_search_result (sr);
}
}
while (TRUE == gtk_tree_model_iter_next (tm, &iter));
}
/**
* We received a search error message from the FS library.
* Present it to the user in an appropriate form.
*
* @param tab search tab affected by the error
* @param emsg the error message
*/
static void
handle_search_error (struct SearchTab *tab,
const char *emsg)
{
gtk_label_set_text (tab->label, _("Error!"));
gtk_widget_set_tooltip_text (GTK_WIDGET (tab->label), emsg);
}
/**
* Obtain the string we will use to describe a search result from
* the respective meta data.
*
* @param meta meta data to inspect
* @return description of the result in utf-8, never NULL
*/
static char *
get_description_from_metadata (const struct GNUNET_CONTAINER_MetaData *meta)
{
char *desc;
char *utf8_desc;
desc =
GNUNET_CONTAINER_meta_data_get_first_by_types (meta,
EXTRACTOR_METATYPE_PACKAGE_NAME,
EXTRACTOR_METATYPE_TITLE,
EXTRACTOR_METATYPE_BOOK_TITLE,
EXTRACTOR_METATYPE_FILENAME,
EXTRACTOR_METATYPE_DESCRIPTION,
EXTRACTOR_METATYPE_SUMMARY,
EXTRACTOR_METATYPE_ALBUM,
EXTRACTOR_METATYPE_COMMENT,
EXTRACTOR_METATYPE_SUBJECT,
EXTRACTOR_METATYPE_KEYWORDS,
-1);
if (desc == NULL)
return GNUNET_strdup (_("no description supplied"));
utf8_desc =
GNUNET_FS_GTK_dubious_meta_to_utf8 (EXTRACTOR_METAFORMAT_UTF8, desc,
strlen (desc) + 1);
GNUNET_free (desc);
if (utf8_desc == NULL)
return GNUNET_strdup (_("no description supplied"));
return utf8_desc;
}
/**
* Obtain the mime type (or format description) will use to describe a search result from
* the respective meta data.
*
* @param meta meta data to inspect
* @return mime type to use, possibly NULL
*/
static char *
get_mimetype_from_metadata (const struct GNUNET_CONTAINER_MetaData *meta)
{
return GNUNET_CONTAINER_meta_data_get_first_by_types (meta,
EXTRACTOR_METATYPE_MIMETYPE,
EXTRACTOR_METATYPE_FORMAT,
-1);
}
/**
* Some additional information about a search result has been
* received. Update the view accordingly.
*
* @param sr search result that is being updated
* @param meta updated meta data
* @param availability_rank updated availability information
* @param availability_certainty updated availability certainty
* @param applicability_rank updated applicability information
*/
static void
update_search_result (struct SearchResult *sr,
const struct GNUNET_CONTAINER_MetaData *meta,
int32_t availability_rank,
uint32_t availability_certainty,
uint32_t applicability_rank)
{
GtkTreeIter iter;
struct GNUNET_CONTAINER_MetaData *ometa;
GtkTreeView *tv;
GtkTreePath *tp;
GtkTreeStore *ts;
GtkTreeModel *tm;
char *desc;
char *mime;
GdkPixbuf *pixbuf;
guint percent_avail;
GtkNotebook *notebook;
gint page;
if (sr == NULL)
{
GNUNET_break (0);
return;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Updating search result SR=%p with %d, %u, %u\n",
sr, availability_rank,
availability_certainty, applicability_rank);
desc = get_description_from_metadata (meta);
mime = get_mimetype_from_metadata (meta);
pixbuf = GNUNET_FS_GTK_get_thumbnail_from_meta_data (meta);
tp = gtk_tree_row_reference_get_path (sr->rr);
tm = gtk_tree_row_reference_get_model (sr->rr);
ts = GTK_TREE_STORE (tm);
gtk_tree_model_get_iter (tm, &iter, tp);
gtk_tree_path_free (tp);
gtk_tree_model_get (tm, &iter, 0, &ometa, -1);
if (NULL != ometa)
GNUNET_CONTAINER_meta_data_destroy (ometa);
if (availability_certainty > 0)
percent_avail =
(availability_certainty +
availability_rank) * 50 / availability_certainty;
else
percent_avail = 0;
gtk_tree_store_set (ts, &iter,
0, GNUNET_CONTAINER_meta_data_duplicate (meta),
3, pixbuf /* preview */ ,
5, (guint) percent_avail /* percent availability */ ,
6, desc /* filename/description */ ,
10, mime, 11, (guint) applicability_rank, 12,
(guint) availability_certainty, 13,
(gint) availability_rank, -1);
if (pixbuf != NULL)
g_object_unref (pixbuf);
GNUNET_free (desc);
GNUNET_free_non_null (mime);
notebook =
GTK_NOTEBOOK (GNUNET_FS_GTK_get_main_window_object
("GNUNET_GTK_main_window_notebook"));
page = gtk_notebook_get_current_page (notebook);
if (gtk_notebook_get_nth_page (notebook, page) == sr->tab->frame)
{
tv = GTK_TREE_VIEW (gtk_builder_get_object
(sr->tab->builder, "_search_result_frame"));
GNUNET_FS_GTK_search_treeview_cursor_changed (tv, sr->tab);
}
}
/**
* Add a search result to the given search tab. This function is called
* not only for 'normal' search results but also for directories that
* are being opened and if the user manually enters a URI.
*
* @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)
{
struct SearchResult *sr;
GtkTreePath *tp;
const char *status_colour;
char *desc;
char *mime;
char *uris;
GdkPixbuf *pixbuf;
GtkTreeIter *pitr;
GtkTreeIter pmem;
GtkTreePath *path;
GtkTreeModel *tm;
GtkTreeStore *ts;
uint64_t fsize;
if (NULL == uri)
{
/* opened directory file */
fsize = 0;
status_colour = "gray";
mime = NULL; /* FIXME-FEATURE-MAYBE: should we set mime to directory? */
uris = GNUNET_strdup (_("no URI"));
}
else
{
if ( (GNUNET_FS_uri_test_loc (uri)) ||
(GNUNET_FS_uri_test_chk (uri)) )
{
fsize = GNUNET_FS_uri_chk_get_file_size (uri);
mime = get_mimetype_from_metadata (meta);
status_colour = "white";
}
else
{
/* FIXME-FEATURE-MAYBE: create mime type for namespaces? */
/* FIXME-BUG-MAYBE: can we encounter ksk URIs here too? */
fsize = 0;
mime = GNUNET_strdup ("GNUnet namespace");
status_colour = "lightgreen";
}
uris = GNUNET_FS_uri_to_string (uri);
}
desc = get_description_from_metadata (meta);
pixbuf = GNUNET_FS_GTK_get_thumbnail_from_meta_data (meta);
sr = GNUNET_malloc (sizeof (struct SearchResult));
sr->result = result;
sr->tab = tab;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Allocated a search result SR=%p\n",
sr);
if (parent_rr != NULL)
{
/* get piter from parent */
path = gtk_tree_row_reference_get_path (parent_rr);
tm = gtk_tree_row_reference_get_model (parent_rr);
if (! gtk_tree_model_get_iter (GTK_TREE_MODEL (tm), &pmem, path))
{
GNUNET_break (0);
gtk_tree_path_free (path);
/* desperate measure: make top-level entry */
pitr = NULL;
}
else
{
pitr = &pmem;
}
ts = GTK_TREE_STORE (tm);
}
else
{
/* top-level result */
pitr = NULL;
ts = tab->ts;
}
gtk_tree_store_insert_with_values (ts, iter, pitr, G_MAXINT,
0, GNUNET_CONTAINER_meta_data_duplicate (meta),
1, (uri == NULL) ? NULL : GNUNET_FS_uri_dup (uri),
2, fsize,
3, pixbuf /* preview */ ,
4, 0 /* percent progress */ ,
5, 0 /* percent availability */ ,
6, desc /* filename/description */ ,
7, uris,
8, status_colour,
9, sr,
10, mime,
11, applicability_rank,
12, 0 /* avail-cert */ ,
13, 0, /* avail-rank */
14, (guint64) 0, /* completed */
15, NULL, /* downloaded_filename */
16, -1, /* downloaded_anonymity */
-1);
if (pixbuf != NULL)
g_object_unref (pixbuf);
GNUNET_free (uris);
GNUNET_free (desc);
GNUNET_free_non_null (mime);
/* remember in 'sr' where we added the result */
tp = gtk_tree_model_get_path (GTK_TREE_MODEL (ts), iter);
sr->rr = gtk_tree_row_reference_new (GTK_TREE_MODEL (ts), tp);
gtk_tree_path_free (tp);
/* move up to the outermost tab, in case this is an 'inner'
search (namespace update case) */
while (tab->parent != NULL)
tab = tab->parent->tab;
tab->num_results++;
return sr;
}
/**
* We have received a search result from the FS API. Add it to the
* respective search tab. The search result can be an 'inner'
* search result (updated result for a namespace search) or a
* top-level search result. Update the tree view and the label
* of the search tab accordingly.
*
* @param tab the search tab where the new result should be added
* @param parent parent search result (if this is a namespace update result), or NULL
* @param uri URI of the search result
* @param meta meta data for the result
* @param result FS API handle to the result
* @param applicability_rank how applicable is the result to the query
* @return struct representing the search result (also stored in the tree
* model at 'iter')
*/
static struct SearchResult *
process_search_result (struct SearchTab *tab,
struct SearchResult *parent,
const struct GNUNET_FS_Uri *uri,
const struct GNUNET_CONTAINER_MetaData *meta,
struct GNUNET_FS_SearchResult *result,
uint32_t applicability_rank)
{
struct SearchResult *sr;
GtkTreeIter iter;
sr = GNUNET_GTK_add_search_result (tab, &iter,
(parent != NULL) ? parent->rr : NULL,
uri,
meta, result, applicability_rank);
update_search_label (tab);
return sr;
}
/**
* Setup a new search tab.
*
* @param sc context with FS for the search, NULL for none (open-URI/orphan tab)
* @param query the query, NULL for none (open-URI/orphan tab)
* @return search tab handle
*/
static struct SearchTab *
setup_search_tab (struct GNUNET_FS_SearchContext *sc,
const struct GNUNET_FS_Uri *query)
{
struct SearchTab *tab;
GtkNotebook *notebook;
GtkWindow *sf;
gint pages;
tab = GNUNET_malloc (sizeof (struct SearchTab));
GNUNET_CONTAINER_DLL_insert (search_tab_head, search_tab_tail, tab);
tab->sc = sc;
if (query == NULL)
{
/* no real query, tab is for non-queries, use special label */
tab->query_txt = GNUNET_strdup ("*");
}
else
{
/* FS_uri functions should produce UTF-8, so let them be */
if (GNUNET_FS_uri_test_ksk (query))
tab->query_txt = GNUNET_FS_uri_ksk_to_string_fancy (query);
else
tab->query_txt = GNUNET_FS_uri_to_string (query);
}
tab->builder = GNUNET_GTK_get_new_builder ("gnunet_fs_gtk_search_tab.glade",
tab);
tab->ts =
GTK_TREE_STORE (gtk_builder_get_object
(tab->builder,
"GNUNET_GTK_file_sharing_result_tree_store"));
/* load frame */
sf = GTK_WINDOW (gtk_builder_get_object
(tab->builder, "_search_result_frame_window"));
tab->frame = gtk_bin_get_child (GTK_BIN (sf));
g_object_ref (tab->frame);
gtk_container_remove (GTK_CONTAINER (sf), tab->frame);
gtk_widget_destroy (GTK_WIDGET (sf));
/* load tab_label */
sf = GTK_WINDOW (gtk_builder_get_object
(tab->builder, "_search_result_label_window"));
tab->tab_label = gtk_bin_get_child (GTK_BIN (sf));
g_object_ref (tab->tab_label);
gtk_container_remove (GTK_CONTAINER (sf), tab->tab_label);
gtk_widget_destroy (GTK_WIDGET (sf));
/* get refs to widgets */
tab->label =
GTK_LABEL (gtk_builder_get_object
(tab->builder, "_search_result_label_window_label"));
tab->close_button =
GTK_WIDGET (gtk_builder_get_object
(tab->builder, "_search_result_label_close_button"));
tab->play_button =
GTK_WIDGET (gtk_builder_get_object
(tab->builder, "_search_result_label_play_button"));
tab->pause_button =
GTK_WIDGET (gtk_builder_get_object
(tab->builder, "_search_result_label_pause_button"));
/* patch text */
update_search_label (tab);
/* make visible */
notebook =
GTK_NOTEBOOK (GNUNET_FS_GTK_get_main_window_object
("GNUNET_GTK_main_window_notebook"));
pages = gtk_notebook_get_n_pages (notebook);
gtk_notebook_insert_page (notebook, tab->frame, tab->tab_label, pages - 1);
gtk_notebook_set_current_page (notebook, pages - 1);
gtk_widget_show (GTK_WIDGET (notebook));
return tab;
}
/**
* Setup an "inner" search, that is a subtree representing namespace
* 'update' results. We use a 'struct SearchTab' to represent this
* sub-search. In the GUI, the presentation is similar to search
* results in a directory, except that this is for a namespace search
* result that gave pointers to an alternative keyword to use and this
* is the set of the results found for this alternative keyword.
*
* All of the 'widget' elements of the returned 'search tab' reference
* the parent search. The whole construction is essentially a trick
* to allow us to store the FS-API's 'SearchContext' somewhere and to
* find it when we get this kind of 'inner' search results (so that we
* can then place them in the tree view in the right spot).
*
* FIXME-BUG-MAYBE: don't we need a bit more information then? Like exactly where
* this 'right spot' is? Not sure how just having 'sc' helps there,
* as it is not a search result (!) to hang this up on! This might
* essentially boil down to an issue with the FS API, not sure...
*
* @param sc context with FS for the search
* @param parent parent search tab
* @return struct representing the search result (also stored in the tree
* model at 'iter')
*/
static struct SearchTab *
setup_inner_search (struct GNUNET_FS_SearchContext *sc,
struct SearchResult *parent)
{
struct SearchTab *ret;
ret = GNUNET_malloc (sizeof (struct SearchTab));
ret->parent = parent;
ret->sc = sc;
ret->query_txt = parent->tab->query_txt;
ret->builder = parent->tab->builder;
ret->frame = parent->tab->frame;
ret->tab_label = parent->tab->tab_label;
ret->close_button = parent->tab->close_button;
ret->play_button = parent->tab->play_button;
ret->label = parent->tab->label;
return ret;
}
/**
* Setup a new top-level entry in the URI/orphan tab. If necessary, create
* the URI tab first.
*
* @param iter set to the new entry (OUT only)
* @param srp set to search result (can be NULL)
* @param meta metadata for the new entry
* @param uri URI for the new entry
* @return the 'uri_tab' the result was added to
*/
struct SearchTab *
GNUNET_GTK_add_to_uri_tab (GtkTreeIter *iter, struct SearchResult **srp,
const struct GNUNET_CONTAINER_MetaData *meta,
const struct GNUNET_FS_Uri *uri)
{
struct SearchResult *sr;
GtkNotebook *notebook;
gint page;
if (NULL == uri_tab)
{
uri_tab = setup_search_tab (NULL, NULL);
gtk_widget_set_visible (uri_tab->close_button, FALSE);
gtk_widget_set_visible (uri_tab->pause_button, FALSE);
}
/* make 'uri_tab' the current page */
notebook =
GTK_NOTEBOOK (GNUNET_FS_GTK_get_main_window_object
("GNUNET_GTK_main_window_notebook"));
for (page = 0; page < gtk_notebook_get_n_pages (notebook); page++)
if (uri_tab->frame == gtk_notebook_get_nth_page (notebook, page))
{
gtk_notebook_set_current_page (notebook, page);
break;
}
sr = GNUNET_GTK_add_search_result (uri_tab, iter, NULL, uri, meta, NULL, 0);
if (NULL != srp)
*srp = sr;
return uri_tab;
}
/* ***************** Download event handling ****************** */
/**
* Change the (background) color of the given download entry.
*
* @param de entry to change
* @param color name of the color to use
*/
static void
change_download_color (struct DownloadEntry *de,
const char *color)
{
GtkTreeIter iter;
GtkTreePath *path;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Changing download DE=%p color to %s\n",
de, color);
path = gtk_tree_row_reference_get_path (de->rr);
if (! gtk_tree_model_get_iter (GTK_TREE_MODEL (de->ts), &iter, path))
{
GNUNET_break (0);
gtk_tree_path_free (path);
return;
}
gtk_tree_path_free (path);
gtk_tree_store_set (de->ts, &iter, 8, color, -1);
}
/**
* A download operation was stopped. Remove all state associated with
* it and reset the search result's background color to 'white'.
*
* @param de the download that was stopped
*/
static void
stop_download (struct DownloadEntry *de)
{
GtkTreeIter iter;
GtkTreePath *path;
GtkTreeModel *tm;
struct SearchResult *search_result;
tm = gtk_tree_row_reference_get_model (de->rr);
path = gtk_tree_row_reference_get_path (de->rr);
if (! gtk_tree_model_get_iter (tm, &iter, path))
{
gtk_tree_path_free (path);
GNUNET_break (0);
return;
}
gtk_tree_path_free (path);
gtk_tree_model_get (tm, &iter, 9, &search_result, -1);
/* FIXME-BUG: 'search_result' can be NULL here, somehow some code fails to setup the record.. */
if (NULL == search_result)
{
/* FIXME-BUG: this prevents the crash for now, but does not solve the problem */
GNUNET_break (0);
return;
}
GNUNET_assert (search_result->download == de);
search_result->download = NULL;
change_download_color (de, "white");
gtk_tree_row_reference_free (de->rr);
GNUNET_FS_uri_destroy (de->uri);
GNUNET_CONTAINER_meta_data_destroy (de->meta);
GNUNET_free (de);
}
/**
* Closure for 'add_directory_entry'.
*/
struct AddDirectoryEntryContext
{
/**
* Search tab where we need to expand the result list.
*/
struct SearchTab *tab;
/**
* Row reference of parent (the directory).
*/
GtkTreeRowReference *prr;
/**
* Do we need to check if the given entry already exists to
* avoid adding it twice? Set to YES if 'add_directory_entry'
* is called upon directory completion (so we might see all
* entries again) and to NO if this is the initial download
* and we're calling during a 'PROGRESS' event.
*/
int check_duplicates;
};
/**
* Function used to process entries in a directory. Whenever we
* download a directory, this function is called on the entries in the
* directory to add them to the search tab. Note that the function
* maybe called twice for the same entry, once during incremental
* processing and later once more when we have the complete directory.
*
* For the second round, the 'check_duplicates' flag will be set in
* the closure. If called on an entry that already exists, the
* function should simply do nothing.
*
* @param cls closure, our 'struct AddDirectoryEntryContext*'
* @param filename name of the file in the directory
* @param uri URI of the file, NULL for the directory itself
* @param metadata metadata for the file; metadata for
* the directory if everything else is NULL/zero
* @param length length of the available data for the file
* (of type size_t since data must certainly fit
* into memory; if files are larger than size_t
* permits, then they will certainly not be
* embedded with the directory itself).
* @param data data available for the file (length bytes)
*/
static void
add_directory_entry (void *cls, const char *filename,
const struct GNUNET_FS_Uri *uri,
const struct GNUNET_CONTAINER_MetaData *meta,
size_t length, const void *data)
{
struct AddDirectoryEntryContext *ade = cls;
GtkTreeIter iter;
GtkTreeIter piter;
GtkTreePath *path;
GtkTreeModel *tm;
struct GNUNET_FS_Uri *xuri;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Adding directory entry `%s'\n",
filename);
if (NULL == uri)
{
/* directory meta data itself */
/* FIXME-FEATURE-MAYBE: consider merging it with the meta data from
the original search result... */
return;
}
if (ade->check_duplicates == GNUNET_YES)
{
tm = gtk_tree_row_reference_get_model (ade->prr);
path = gtk_tree_row_reference_get_path (ade->prr);
if (! gtk_tree_model_get_iter (tm, &piter, path))
{
GNUNET_break (0);
gtk_tree_path_free (path);
return;
}
gtk_tree_path_free (path);
if (TRUE == gtk_tree_model_iter_children (tm, &iter, &piter))
{
do
{
gtk_tree_model_get (tm, &iter, 1, &xuri, -1);
if (GNUNET_YES == GNUNET_FS_uri_test_equal (xuri, uri))
return; /* already present */
}
while (TRUE == gtk_tree_model_iter_next (tm, &iter));
}
}
GNUNET_GTK_add_search_result (ade->tab, &iter, ade->prr, uri, meta, NULL,
0);
}
/**
* We got an event that some download is progressing. Update the tree
* model accordingly. If the download is a directory, try to display
* the contents.
*
* @param de download entry that is progressing
* @param size overall size of the download
* @param completed number of bytes we have completed
* @param block_data current block we've downloaded
* @param offset offset of block_data in the overall file
* @param block_size number of bytes in block_data
* @param depth depth of the block in the ECRS tree
*/
static void
mark_download_progress (struct DownloadEntry *de, uint64_t size,
uint64_t completed, const void *block_data,
uint64_t offset, uint64_t block_size,
unsigned int depth)
{
GtkTreeIter iter;
GtkTreePath *path;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Marking download progress for DE=%p, %llu/%llu, %llu@%llu depth=%u\n",
de, completed, size, block_size, offset, depth);
path = gtk_tree_row_reference_get_path (de->rr);
if (! gtk_tree_model_get_iter (GTK_TREE_MODEL (de->ts), &iter, path))
{
GNUNET_break (0);
gtk_tree_path_free (path);
return;
}
gtk_tree_path_free (path);
/* FIXME-DESIGN: should we replace the 'availability' with
'progress' once the download has started and re-use the
space in the display? Probably yes, at least once we have
a custom CellRenderer... */
gtk_tree_store_set (de->ts, &iter,
4, (guint) ((size >
0) ? (100 * completed /
size) : 100) /* progress */,
5, (guint) ((size >
0) ? (100 * completed /
size) : 100) /* availability == progress */,
14, completed,
-1);
if ( (depth == 0) &&
(block_size > 0) &&
(GNUNET_YES == GNUNET_FS_meta_data_test_for_directory (de->meta)) )
{
/* got a data block of a directory, list its contents */
struct AddDirectoryEntryContext ade;
ade.tab = de->tab;
ade.prr = de->rr;
ade.check_duplicates = GNUNET_NO;
if (GNUNET_SYSERR ==
GNUNET_FS_directory_list_contents ((size_t) block_size, block_data,
offset, &add_directory_entry, &ade))
{
/* Mime type was wrong, this is not a directory, update model! */
GNUNET_break (GNUNET_OK ==
GNUNET_CONTAINER_meta_data_delete (de->meta,
EXTRACTOR_METATYPE_MIMETYPE, NULL, 0));
gtk_tree_store_set (de->ts, &iter,
10, "" /* unknown mime type */, -1);
}
}
}
/**
* FS-API encountered an error downloading a file. Update the
* view accordingly.
*
* @param de download that had an error
* @param emsg error message to display
*/
static void
mark_download_error (struct DownloadEntry *de,
const char *emsg)
{
GtkTreeIter iter;
GtkTreePath *path;
change_download_color (de, "red");
de->is_done = GNUNET_YES;
path = gtk_tree_row_reference_get_path (de->rr);
if (! gtk_tree_model_get_iter (GTK_TREE_MODEL (de->tab->ts), &iter, path))
{
GNUNET_break (0);
gtk_tree_path_free (path);
return;
}
gtk_tree_path_free (path);
gtk_tree_store_set (de->tab->ts, &iter, 4, 0, 7, emsg, -1);
}
/**
* FS-API notified us that we're done with a download. Update the
* view accordingly. If the download is a directory, try to display
* the contents.
*
* @param de download that has finished
* @param size overall size of the file
* @param filename name of the downloaded file on disk (possibly a temporary file)
*/
static void
mark_download_completed (struct DownloadEntry *de, uint64_t size,
const char *filename)
{
struct AddDirectoryEntryContext ade;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Marking download completed for DE=%p, %llu-byte `%s'\n",
de, size, filename);
de->is_done = GNUNET_YES;
mark_download_progress (de, size, size, NULL, 0, 0, 0);
if ( (GNUNET_YES == GNUNET_FS_meta_data_test_for_directory (de->meta)) &&
(filename != NULL) )
{
/* download was for a directory (and we have a temp file for scanning);
add contents of the directory to the view */
ade.tab = de->tab;
ade.prr = de->rr;
ade.check_duplicates = GNUNET_YES;
GNUNET_FS_GTK_mmap_and_scan (filename, &add_directory_entry, &ade);
}
change_download_color (de, "green");
}
/**
* Copy all of the children of 'src_iter' from the 'src_model' to
* become children of 'dst_iter' in the 'dst_model'. The models are
* both 'GNUNET_GTK_file_sharing_result_tree_store' models.
*
* Note that we also need to update the 'struct SearchResult'
* and (if it exists) the respective 'struct DownloadEntry'
* to refer to the new model.
*
* @param src_model source model
* @param src_iter parent of the nodes to move
* @param dst_model destination model
* @param dst_iter new parent of the entries we are moving
*/
static void
copy_children (GtkTreeModel * src_model, GtkTreeIter * src_iter,
GtkTreeModel * dst_model, GtkTreeIter * dst_iter)
{
GtkTreeIter src_child;
GtkTreeIter dst_child;
GtkTreePath *path;
struct GNUNET_CONTAINER_MetaData *meta;
struct GNUNET_FS_Uri *uri;
guint64 filesize, completed;
GdkPixbuf *preview;
guint percent_progress;
guint percent_availability;
gchar *filename;
gchar *uri_as_string;
gchar *status_colour;
struct SearchResult *search_result;
gchar *mimetype;
guint applicability_rank;
guint availability_certainty;
gint availability_rank;
gchar *downloaded_filename;
gint downloaded_anonymity;
if (! gtk_tree_model_iter_children (src_model, &src_child, src_iter))
return;
do
{
gtk_tree_model_get (src_model, &src_child, 0, &meta, 1, &uri, 2,
&filesize, 3, &preview, 4, &percent_progress, 5,
&percent_availability, 6, &filename, 7,
&uri_as_string, 8, &status_colour, 9, &search_result,
10, &mimetype, 11, &applicability_rank, 12,
&availability_certainty, 13, &availability_rank, 14,
&completed, 15, &downloaded_filename, 16,
&downloaded_anonymity, -1);
gtk_tree_store_insert_with_values (GTK_TREE_STORE (dst_model), &dst_child,
dst_iter, G_MAXINT, 0, meta, 1, uri, 2,
filesize, 3, preview, 4,
percent_progress, 5,
percent_availability, 6, filename, 7,
uri_as_string, 8, status_colour, 9,
search_result, 10, mimetype, 11,
applicability_rank, 12,
availability_certainty, 13,
availability_rank, 14, completed, 15,
downloaded_filename, 16,
downloaded_anonymity, -1);
g_free (filename);
g_free (downloaded_filename);
g_free (uri_as_string);
g_free (status_colour);
g_free (mimetype);
if (preview != NULL)
g_object_unref (preview);
gtk_tree_row_reference_free (search_result->rr);
path = gtk_tree_model_get_path (dst_model, &dst_child);
search_result->rr = gtk_tree_row_reference_new (dst_model, path);
search_result->result = NULL;
gtk_tree_path_free (path);
if (search_result->download != NULL)
{
search_result->download->ts = GTK_TREE_STORE (dst_model);
gtk_tree_row_reference_free (search_result->download->rr);
search_result->download->rr =
gtk_tree_row_reference_copy (search_result->rr);
}
copy_children (src_model, &src_child, dst_model, &dst_child);
}
while (TRUE == gtk_tree_model_iter_next (src_model, &src_child));
}
/**
* Delete the entire given subtree from the model. Does not free
* anything inside of the respective model's fields (since they have
* been moved).
*
* @param model model that contains the subtree to remove
* @param iter root of the subtree to remove
*/
static void
delete_stale_subtree (GtkTreeModel * model, GtkTreeIter * iter)
{
GtkTreeIter child;
while (TRUE == gtk_tree_model_iter_children (model, &child, iter))
delete_stale_subtree (model, &child);
gtk_tree_store_remove (GTK_TREE_STORE (model), iter);
}
/**
* Handle the case where an active download lost its
* search parent by moving it to the URI tab.
*
* @param de download where the parent (i.e. search) was lost
*/
static void
download_lost_parent (struct DownloadEntry *de)
{
GtkTreeIter iter;
GtkTreePath *path;
struct SearchTab *tab;
GtkTreeRowReference *rr_old;
GtkTreeModel *tm_old;
GtkTreeIter iter_old;
GtkTreeIter child;
GtkTreeModel *model;
/* first, move the root of the respective 'de'-tree */
rr_old = de->rr;
tab = GNUNET_GTK_add_to_uri_tab (&iter, &de->sr, de->meta, de->uri);
de->sr->download = de;
de->ts = tab->ts;
model = GTK_TREE_MODEL (de->ts);
path = gtk_tree_model_get_path (model, &iter);
de->rr = gtk_tree_row_reference_new (model, path);
gtk_tree_path_free (path);
tm_old = gtk_tree_row_reference_get_model (rr_old);
path = gtk_tree_row_reference_get_path (rr_old);
gtk_tree_row_reference_free (rr_old);
if (! gtk_tree_model_get_iter (tm_old, &iter_old, path))
{
GNUNET_break (0);
gtk_tree_path_free (path);
return;
}
gtk_tree_path_free (path);
/* finally, move all children over as well */
copy_children (tm_old, &iter_old, model, &iter);
while (gtk_tree_model_iter_children (model, &child, &iter))
delete_stale_subtree (model, &child);
}
/**
* Setup a new download entry.
*
* @param de existing download entry for the download, or NULL (in which case we create a fresh one)
* @param pde parent download entry, or NULL
* @param sr search result, or NULL
* @param dc download context (for stopping)
* @param uri the URI, must not be NULL
* @param filename filename on disk
* @param meta metadata
* @param size total size
* @param completed current progress
* @return download entry struct for the download (equal to 'de' if 'de' was not NULL)
*/
static struct DownloadEntry *
setup_download (struct DownloadEntry *de, struct DownloadEntry *pde,
struct SearchResult *sr, struct GNUNET_FS_DownloadContext *dc,
const struct GNUNET_FS_Uri *uri, const char *filename,
const struct GNUNET_CONTAINER_MetaData *meta, uint64_t size,
uint64_t completed)
{
GtkTreeIter iter;
GtkTreePath *path;
struct SearchResult *srp;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Setting up download, initially DE=%p, PDE=%p for %p & %p into %llu/%llu `%s'\n",
de, pde, sr, dc, completed, size, filename);
GNUNET_assert (NULL != uri);
srp = NULL;
if (NULL == de)
{
/* no existing download entry to build on, create a fresh one */
de = GNUNET_malloc (sizeof (struct DownloadEntry));
de->uri = GNUNET_FS_uri_dup (uri);
}
else
{
GNUNET_assert (GNUNET_YES == GNUNET_FS_uri_test_equal (de->uri, uri));
}
de->dc = dc;
de->sr = sr;
de->pde = pde;
if ( (meta != NULL) && (de->meta == NULL) )
de->meta = GNUNET_CONTAINER_meta_data_duplicate (meta);
if (NULL != sr)
{
/* got a search result; display the download in the same location as the search result */
GNUNET_assert (sr->download == NULL);
sr->download = de;
de->rr = gtk_tree_row_reference_copy (sr->rr);
de->ts = sr->tab->ts;
de->tab = sr->tab;
srp = sr;
}
if (NULL == de->rr)
{
/* Stand-alone download with no 'row'/search result affiliated
with the download so far; create a fresh entry for this
download in the URI tab */
de->tab = GNUNET_GTK_add_to_uri_tab (&iter, &srp, meta, uri);
de->ts = de->tab->ts;
path = gtk_tree_model_get_path (GTK_TREE_MODEL (de->ts), &iter);
de->rr = gtk_tree_row_reference_new (GTK_TREE_MODEL (de->ts), path);
gtk_tree_path_free (path);
srp->download = de;
}
path = gtk_tree_row_reference_get_path (de->rr);
if (! gtk_tree_model_get_iter (GTK_TREE_MODEL (de->ts), &iter, path))
{
GNUNET_break (0);
gtk_tree_path_free (path);
return de;
}
gtk_tree_path_free (path);
gtk_tree_store_set (de->ts, &iter,
4, (guint) ((size >
0) ? (100 * completed /
size) : 100) /* progress */ ,
6, filename /* filename/description */ ,
8, "blue" /* status colour: pending */ ,
9, srp,
14, completed,
-1);
return de;
}
/* ***************** Publish event handling ****************** */
/**
* Change the (background) color of the given publish entry.
*
* @param pe entry to change
* @param color name of the color to use
*/
static void
change_publish_color (struct PublishEntry *pe,
const char *color)
{
GtkTreeIter iter;
GtkTreePath *path;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Changing publish PE=%p color to %s\n",
pe, color);
path = gtk_tree_row_reference_get_path (pe->rr);
if (! gtk_tree_model_get_iter (GTK_TREE_MODEL (pe->tab->ts), &iter, path))
{
GNUNET_break (0);
gtk_tree_path_free (path);
return;
}
gtk_tree_path_free (path);
gtk_tree_store_set (pe->tab->ts, &iter, 2, color, -1);
}
/**
* We got an event that some publishing operation is progressing.
* Update the tree model accordingly.
*
* @param pe publish entry that is progressing
* @param size overall size of the file or directory
* @param completed number of bytes we have completed
*/
static void
mark_publish_progress (struct PublishEntry *pe, uint64_t size,
uint64_t completed)
{
GtkTreeIter iter;
GtkTreePath *path;
path = gtk_tree_row_reference_get_path (pe->rr);
if (! gtk_tree_model_get_iter (GTK_TREE_MODEL (pe->tab->ts), &iter, path))
{
GNUNET_break (0);
gtk_tree_path_free (path);
return;
}
gtk_tree_path_free (path);
gtk_tree_store_set (pe->tab->ts, &iter, 3,
(guint) ((size >
0) ? (100 * completed /
size) : 100) /* progress */ ,
-1);
}
/**
* FS-API notified us that we're done with some publish operation.
* Update the view accordingly.
*
* @param pe publish operation that has finished
* @param uri resulting URI
*/
static void
handle_publish_completed (struct PublishEntry *pe,
const struct GNUNET_FS_Uri *uri)
{
GtkTreeIter iter;
GtkTreePath *path;
char *uris;
path = gtk_tree_row_reference_get_path (pe->rr);
if (! gtk_tree_model_get_iter (GTK_TREE_MODEL (pe->tab->ts), &iter, path))
{
GNUNET_break (0);
gtk_tree_path_free (path);
return;
}
gtk_tree_path_free (path);
pe->uri = GNUNET_FS_uri_dup (uri);
uris = GNUNET_FS_uri_to_string (uri);
gtk_tree_store_set (pe->tab->ts, &iter,
5, uris,
-1);
GNUNET_free (uris);
change_publish_color (pe, "green");
}
/**
* We received a publish error message from the FS library.
* Present it to the user in an appropriate form.
*
* @param pe publishing operation affected by the error
* @param emsg the error message
*/
static void
handle_publish_error (struct PublishEntry *pe,
const char *emsg)
{
GtkTreeIter iter;
GtkTreePath *path;
path = gtk_tree_row_reference_get_path (pe->rr);
if (! gtk_tree_model_get_iter (GTK_TREE_MODEL (pe->tab->ts), &iter, path))
{
GNUNET_break (0);
gtk_tree_path_free (path);
return;
}
gtk_tree_path_free (path);
gtk_tree_store_set (pe->tab->ts, &iter,
5, emsg,
-1);
change_publish_color (pe, "red");
}
/**
* A publishing operation was stopped (in FS API). Free an entry in
* the publish tab and its associated state.
*
* @param pe publishing operation that was stopped
*/
static void
handle_publish_stop (struct PublishEntry *pe)
{
GtkTreeIter iter;
GtkTreePath *path;
path = gtk_tree_row_reference_get_path (pe->rr);
/* This is a child of a directory, and we've had that directory
free'd already */
if (! gtk_tree_model_get_iter (GTK_TREE_MODEL (pe->tab->ts), &iter, path))
{
GNUNET_break (0);
return;
}
(void) gtk_tree_store_remove (pe->tab->ts, &iter);
gtk_tree_path_free (path);
gtk_tree_row_reference_free (pe->rr);
if (pe->uri != NULL)
{
GNUNET_FS_uri_destroy (pe->uri);
pe->uri = NULL;
}
GNUNET_free (pe);
}
/**
* The user clicked on the "close" button of the publishing tab.
* Tell FS to stop all active publish operations. Then close the tab.
*
* @param button the stop button
* @param user_data the 'struct PublishTab' that is being closed
*/
void
GNUNET_FS_GTK_publish_label_close_button_clicked (GtkButton * button,
gpointer user_data)
{
struct PublishTab *tab = user_data;
struct PublishEntry *ent;
GtkTreeIter iter;
GtkTreeModel *tm;
GtkNotebook *notebook;
int index;
int i;
GNUNET_assert (tab == publish_tab);
/* stop all active operations */
tm = GTK_TREE_MODEL (publish_tab->ts);
if (gtk_tree_model_iter_children (tm, &iter, NULL))
{
do
{
gtk_tree_model_get (tm, &iter, 4, &ent, -1);
GNUNET_FS_publish_stop (ent->pc);
ent->pc = NULL;
}
while (TRUE == gtk_tree_model_iter_next (tm, &iter));
}
clear_metadata_display ();
/* remove tab from notebook */
notebook =
GTK_NOTEBOOK (GNUNET_FS_GTK_get_main_window_object
("GNUNET_GTK_main_window_notebook"));
index = -1;
for (i = gtk_notebook_get_n_pages (notebook) - 1; i >= 0; i--)
if (publish_tab->frame == gtk_notebook_get_nth_page (notebook, i))
index = i;
gtk_notebook_remove_page (notebook, index);
/* fully destroy tab */
g_object_unref (publish_tab->builder);
GNUNET_free (publish_tab);
publish_tab = NULL;
}
/**
* The user started a publishing operation. Add it to the publishing
* tab. If needed, create the publishing tab.
*
* @param pc the FS-API's publishing context for the operation
* @param fn the name of the file (or directory) that is being published
* @param fsize size of the file
* @param parent parent of this publishing operation (for recursive operations), NULL for top-level operations
* @return the publishing entry that will represent this operation
*/
static struct PublishEntry *
setup_publish (struct GNUNET_FS_PublishContext *pc, const char *fn,
uint64_t fsize, struct PublishEntry *parent)
{
struct PublishEntry *ent;
GtkTreeIter *pitrptr;
GtkTreeIter iter;
GtkTreeIter piter;
GtkTreePath *path;
GtkWindow *df;
GtkWidget *tab_label;
GtkNotebook *notebook;
char *size_fancy;
if (NULL == publish_tab)
{
/* create new tab */
publish_tab = GNUNET_malloc (sizeof (struct PublishTab));
publish_tab->builder =
GNUNET_GTK_get_new_builder ("gnunet_fs_gtk_publish_tab.glade",
publish_tab);
df = GTK_WINDOW (gtk_builder_get_object
(publish_tab->builder, "_publish_frame_window"));
publish_tab->frame = gtk_bin_get_child (GTK_BIN (df));
g_object_ref (publish_tab->frame);
gtk_container_remove (GTK_CONTAINER (df), publish_tab->frame);
gtk_widget_destroy (GTK_WIDGET (df));
/* load tab_label */
df = GTK_WINDOW (gtk_builder_get_object
(publish_tab->builder, "_publish_label_window"));
tab_label = gtk_bin_get_child (GTK_BIN (df));
g_object_ref (tab_label);
gtk_container_remove (GTK_CONTAINER (df), tab_label);
gtk_widget_destroy (GTK_WIDGET (df));
/* make visible */
notebook =
GTK_NOTEBOOK (GNUNET_FS_GTK_get_main_window_object
("GNUNET_GTK_main_window_notebook"));
gtk_notebook_insert_page (notebook, publish_tab->frame, tab_label, 0);
gtk_widget_show (GTK_WIDGET (notebook));
gtk_notebook_set_current_page (notebook, 0);
publish_tab->ts =
GTK_TREE_STORE (gtk_builder_get_object
(publish_tab->builder, "_publish_frame_tree_store"));
}
/* decide where to insert in the tab */
if (NULL == parent)
{
pitrptr = NULL;
}
else
{
/* create new iter from parent */
path = gtk_tree_row_reference_get_path (parent->rr);
if (TRUE !=
gtk_tree_model_get_iter (GTK_TREE_MODEL (publish_tab->ts), &piter,
path))
{
GNUNET_break (0);
return NULL;
}
pitrptr = &piter;
}
/* create entry and perform insertion */
ent = GNUNET_malloc (sizeof (struct PublishEntry));
ent->is_top = (parent == NULL) ? GNUNET_YES : GNUNET_NO;
ent->tab = publish_tab;
ent->pc = pc;
size_fancy = GNUNET_STRINGS_byte_size_fancy (fsize);
gtk_tree_store_insert_with_values (publish_tab->ts, &iter, pitrptr, G_MAXINT,
0, fn, 1, size_fancy, 2, "white", 3,
(guint) 0 /* progress */ ,
4, ent, -1);
GNUNET_free (size_fancy);
path = gtk_tree_model_get_path (GTK_TREE_MODEL (publish_tab->ts), &iter);
ent->rr = gtk_tree_row_reference_new (GTK_TREE_MODEL (publish_tab->ts), path);
gtk_tree_path_free (path);
return ent;
}
/* ***************** Master event handler ****************** */
/**
* 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)
{
void *ret;
switch (info->status)
{
case GNUNET_FS_STATUS_PUBLISH_START:
return setup_publish (info->value.publish.pc, info->value.publish.filename,
info->value.publish.size, info->value.publish.pctx);
case GNUNET_FS_STATUS_PUBLISH_RESUME:
ret =
setup_publish (info->value.publish.pc, info->value.publish.filename,
info->value.publish.size, info->value.publish.pctx);
if (ret == NULL)
return ret;
if (info->value.publish.specifics.resume.message != NULL)
{
handle_publish_error (ret,
info->value.publish.specifics.resume.message);
}
else if (info->value.publish.specifics.resume.chk_uri != NULL)
{
handle_publish_completed (ret,
info->value.publish.specifics.resume.chk_uri);
}
return ret;
case GNUNET_FS_STATUS_PUBLISH_SUSPEND:
handle_publish_stop (info->value.publish.cctx);
return NULL;
case GNUNET_FS_STATUS_PUBLISH_PROGRESS:
mark_publish_progress (info->value.publish.cctx,
info->value.publish.size,
info->value.publish.completed);
return info->value.publish.cctx;
case GNUNET_FS_STATUS_PUBLISH_ERROR:
handle_publish_error (info->value.publish.cctx,
info->value.publish.specifics.error.message);
return info->value.publish.cctx;
case GNUNET_FS_STATUS_PUBLISH_COMPLETED:
handle_publish_completed (info->value.publish.cctx,
info->value.publish.specifics.completed.chk_uri);
return info->value.publish.cctx;
case GNUNET_FS_STATUS_PUBLISH_STOPPED:
handle_publish_stop (info->value.publish.cctx);
return NULL;
case GNUNET_FS_STATUS_DOWNLOAD_START:
return setup_download (info->value.download.cctx, info->value.download.pctx,
info->value.download.sctx, info->value.download.dc,
info->value.download.uri,
info->value.download.filename,
info->value.download.specifics.start.meta,
info->value.download.size,
info->value.download.completed);
case GNUNET_FS_STATUS_DOWNLOAD_RESUME:
ret =
setup_download (info->value.download.cctx, info->value.download.pctx,
info->value.download.sctx, info->value.download.dc,
info->value.download.uri, info->value.download.filename,
info->value.download.specifics.resume.meta,
info->value.download.size,
info->value.download.completed);
if (info->value.download.specifics.resume.message != NULL)
mark_download_error (ret,
info->value.download.specifics.resume.message);
return ret;
case GNUNET_FS_STATUS_DOWNLOAD_SUSPEND:
stop_download (info->value.download.cctx);
return NULL;
case GNUNET_FS_STATUS_DOWNLOAD_PROGRESS:
mark_download_progress (info->value.download.cctx,
info->value.download.size,
info->value.download.completed,
info->value.download.specifics.progress.data,
info->value.download.specifics.progress.
offset,
info->value.download.specifics.progress.
data_len,
info->value.download.specifics.progress.
depth);
return info->value.download.cctx;
case GNUNET_FS_STATUS_DOWNLOAD_ERROR:
mark_download_error (info->value.download.cctx,
info->value.download.specifics.error.message);
return info->value.download.cctx;
case GNUNET_FS_STATUS_DOWNLOAD_COMPLETED:
mark_download_completed (info->value.download.cctx,
info->value.download.size,
info->value.download.filename);
return info->value.download.cctx;
case GNUNET_FS_STATUS_DOWNLOAD_STOPPED:
stop_download (info->value.download.cctx);
return NULL;
case GNUNET_FS_STATUS_DOWNLOAD_ACTIVE:
change_download_color (info->value.download.cctx, "yellow");
return info->value.download.cctx;
case GNUNET_FS_STATUS_DOWNLOAD_INACTIVE:
change_download_color (info->value.download.cctx, "blue");
return info->value.download.cctx;
case GNUNET_FS_STATUS_DOWNLOAD_LOST_PARENT:
download_lost_parent (info->value.download.cctx);
return info->value.download.cctx;
case GNUNET_FS_STATUS_SEARCH_START:
if (info->value.search.pctx != NULL)
return setup_inner_search (info->value.search.sc,
info->value.search.pctx);
return setup_search_tab (info->value.search.sc, info->value.search.query);
case GNUNET_FS_STATUS_SEARCH_RESUME:
ret = setup_search_tab (info->value.search.sc, info->value.search.query);
if (info->value.search.specifics.resume.message)
handle_search_error (ret,
info->value.search.specifics.resume.message);
return ret;
case GNUNET_FS_STATUS_SEARCH_RESUME_RESULT:
ret =
process_search_result (info->value.search.cctx, info->value.search.pctx,
info->value.search.specifics.resume_result.uri,
info->value.search.specifics.resume_result.meta,
info->value.search.specifics.resume_result.
result,
info->value.search.specifics.resume_result.
applicability_rank);
update_search_result (ret,
info->value.search.specifics.resume_result.
meta,
info->value.search.specifics.resume_result.
applicability_rank,
info->value.search.specifics.resume_result.
availability_certainty,
info->value.search.specifics.resume_result.
availability_rank);
return ret;
case GNUNET_FS_STATUS_SEARCH_SUSPEND:
close_search_tab (info->value.search.cctx);
return NULL;
case GNUNET_FS_STATUS_SEARCH_RESULT:
return process_search_result (info->value.search.cctx,
info->value.search.pctx,
info->value.search.specifics.result.uri,
info->value.search.specifics.result.meta,
info->value.search.specifics.result.result,
info->value.search.specifics.result.
applicability_rank);
case GNUNET_FS_STATUS_SEARCH_RESULT_NAMESPACE:
GNUNET_break (0);
break;
case GNUNET_FS_STATUS_SEARCH_UPDATE:
update_search_result (info->value.search.specifics.update.cctx,
info->value.search.specifics.update.meta,
info->value.search.specifics.update.
applicability_rank,
info->value.search.specifics.update.
availability_certainty,
info->value.search.specifics.update.
availability_rank);
return info->value.search.specifics.update.cctx;
case GNUNET_FS_STATUS_SEARCH_ERROR:
handle_search_error (info->value.search.cctx,
info->value.search.specifics.error.message);
return info->value.search.cctx;
case GNUNET_FS_STATUS_SEARCH_PAUSED:
return info->value.search.cctx;
case GNUNET_FS_STATUS_SEARCH_CONTINUED:
return info->value.search.cctx;
case GNUNET_FS_STATUS_SEARCH_RESULT_STOPPED:
free_search_result (info->value.search.specifics.result_stopped.cctx);
return NULL;
case GNUNET_FS_STATUS_SEARCH_RESULT_SUSPEND:
free_search_result (info->value.search.specifics.result_suspend.cctx);
return NULL;
case GNUNET_FS_STATUS_SEARCH_STOPPED:
close_search_tab (info->value.search.cctx);
return NULL;
case GNUNET_FS_STATUS_UNINDEX_START:
GNUNET_break (0);
break;
case GNUNET_FS_STATUS_UNINDEX_RESUME:
GNUNET_break (0);
break;
case GNUNET_FS_STATUS_UNINDEX_SUSPEND:
GNUNET_break (0);
break;
case GNUNET_FS_STATUS_UNINDEX_PROGRESS:
GNUNET_break (0);
break;
case GNUNET_FS_STATUS_UNINDEX_ERROR:
GNUNET_break (0);
break;
case GNUNET_FS_STATUS_UNINDEX_COMPLETED:
GNUNET_break (0);
break;
case GNUNET_FS_STATUS_UNINDEX_STOPPED:
GNUNET_break (0);
break;
default:
GNUNET_break (0);
break;
}
return NULL;
}
/* end of gnunet-fs-gtk-event_handler.c */
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