plugins/history.c

/* Puts last 4k of log in new conversations a la Everybuddy (and then
 * stolen by Trillian "Pro") */

#include "internal.h"
#include "gtkgaim.h"

#include "conversation.h"
#include "debug.h"
#include "log.h"
#include "notify.h"
#include "prefs.h"
#include "signals.h"
#include "util.h"
#include "version.h"

#include "gtkconv.h"
#include "gtkimhtml.h"
#include "gtkplugin.h"

#define HISTORY_PLUGIN_ID "gtk-history"

#define HISTORY_SIZE (4 * 1024)

static gboolean _scroll_imhtml_to_end(gpointer data)
{
	GtkIMHtml *imhtml = data;
	gtk_imhtml_scroll_to_end(GTK_IMHTML(imhtml));
	g_object_unref(G_OBJECT(imhtml));
	return FALSE;
}

static void historize(GaimConversation *c)
{
	GaimAccount *account = gaim_conversation_get_account(c);
	const char *name = gaim_conversation_get_name(c);
	GaimConversationType convtype;
	GList *logs = NULL;
	const char *alias = name;
	guint flags;
	char *history;
	GaimGtkConversation *gtkconv;
	GtkIMHtmlOptions options = GTK_IMHTML_NO_COLOURS;
	time_t tm;
	char day[64];
	char *header;
	char *protocol;

	convtype = gaim_conversation_get_type(c);
	gtkconv = GAIM_GTK_CONVERSATION(c);
	if (convtype == GAIM_CONV_TYPE_IM && g_list_length(gtkconv->convs) < 2)
	{
		GSList *buddies;
		GSList *cur;

		/* If we're not logging, don't show anything.
		 * Otherwise, we might show a very old log. */
		if (!gaim_prefs_get_bool("/core/logging/log_ims"))
			return;

		/* Find buddies for this conversation. */
	        buddies = gaim_find_buddies(account, name);

		/* If we found at least one buddy, save the first buddy's alias. */
		if (buddies != NULL)
			alias = gaim_buddy_get_contact_alias((GaimBuddy *)buddies->data);

	        for (cur = buddies; cur != NULL; cur = cur->next)
	        {
	                GaimBlistNode *node = cur->data;
	                if ((node != NULL) && ((node->prev != NULL) || (node->next != NULL)))
	                {
				GaimBlistNode *node2;

				alias = gaim_buddy_get_contact_alias((GaimBuddy *)node);

				/* We've found a buddy that matches this conversation.  It's part of a
				 * GaimContact with more than one GaimBuddy.  Loop through the GaimBuddies
				 * in the contact and get all the logs. */
				for (node2 = node->parent->child ; node2 != NULL ; node2 = node2->next)
				{
					logs = g_list_concat(
						gaim_log_get_logs(GAIM_LOG_IM,
							gaim_buddy_get_name((GaimBuddy *)node2),
							gaim_buddy_get_account((GaimBuddy *)node2)),
						logs);
				}
				break;
	                }
	        }
	        g_slist_free(buddies);

		if (logs == NULL)
			logs = gaim_log_get_logs(GAIM_LOG_IM, name, account);
		else
        		logs = g_list_sort(logs, gaim_log_compare);
	}
	else if (convtype == GAIM_CONV_TYPE_CHAT)
	{
		/* If we're not logging, don't show anything.
		 * Otherwise, we might show a very old log. */
		if (!gaim_prefs_get_bool("/core/logging/log_chats"))
			return;

		logs = gaim_log_get_logs(GAIM_LOG_CHAT, name, account);
	}

	if (logs == NULL)
		return;

	history = gaim_log_read((GaimLog*)logs->data, &flags);
	gtkconv = GAIM_GTK_CONVERSATION(c);
	if (flags & GAIM_LOG_READ_NO_NEWLINE)
		options |= GTK_IMHTML_NO_NEWLINE;

	protocol = g_strdup(gtk_imhtml_get_protocol_name(GTK_IMHTML(gtkconv->imhtml)));
	gtk_imhtml_set_protocol_name(GTK_IMHTML(gtkconv->imhtml),
							      gaim_account_get_protocol_name(((GaimLog*)logs->data)->account));

	tm = ((GaimLog *)logs->data)->time;
	gaim_strftime(day, sizeof(day), "%c", localtime(&tm));
	header = g_strdup_printf("<b>Conversation with %s on %s:</b><br>", alias, day);
	gtk_imhtml_append_text(GTK_IMHTML(gtkconv->imhtml), header, options);
	g_free(header);

	gtk_imhtml_append_text(GTK_IMHTML(gtkconv->imhtml), history, options);
	g_free(history);

	gtk_imhtml_append_text(GTK_IMHTML(gtkconv->imhtml), "<hr>", options);

	gtk_imhtml_set_protocol_name(GTK_IMHTML(gtkconv->imhtml), protocol);
	g_free(protocol);

	g_object_ref(G_OBJECT(gtkconv->imhtml));
	g_idle_add(_scroll_imhtml_to_end, gtkconv->imhtml);

	g_list_foreach(logs, (GFunc)gaim_log_free, NULL);
	g_list_free(logs);
}

static void
history_prefs_check(GaimPlugin *plugin)
{
	if (!gaim_prefs_get_bool("/core/logging/log_ims") &&
	    !gaim_prefs_get_bool("/core/logging/log_chats"))
	{
		gaim_notify_warning(plugin, NULL, _("History Plugin Requires Logging"),
							_("Logging can be enabled from Tools -> Preferences -> Logging.\n\n"
							  "Enabling logs for instant messages and/or chats will activate "
							  "history for the same conversation type(s)."));
	}
}

static void history_prefs_cb(const char *name, GaimPrefType type, gpointer val, gpointer data)
{
	history_prefs_check((GaimPlugin *)data);
}

static gboolean
plugin_load(GaimPlugin *plugin)
{
	gaim_signal_connect(gaim_conversations_get_handle(),
						"conversation-created",
						plugin, GAIM_CALLBACK(historize), NULL);

	gaim_prefs_connect_callback(plugin, "/core/logging/log_ims",
								history_prefs_cb, plugin);
	gaim_prefs_connect_callback(plugin, "/core/logging/log_chats",
								history_prefs_cb, plugin);

	history_prefs_check(plugin);

	return TRUE;
}

static GaimPluginInfo info =
{
	GAIM_PLUGIN_MAGIC,
	GAIM_MAJOR_VERSION,
	GAIM_MINOR_VERSION,
	GAIM_PLUGIN_STANDARD,
	GAIM_GTK_PLUGIN_TYPE,
	0,
	NULL,
	GAIM_PRIORITY_DEFAULT,
	HISTORY_PLUGIN_ID,
	N_("History"),
	VERSION,
	N_("Shows recently logged conversations in new conversations."),
	N_("When a new conversation is opened this plugin will insert "
	   "the last conversation into the current conversation.\n\n"
       "The history plugin requires logging be enabled. Logging can "
	   "be enabled from Tools -> Preferences -> Logging. Enabling logs "
	   "for instant messages and/or chats will activate history for "
	   "the same conversation type(s)."
	),
	"Sean Egan <seanegan@gmail.com>",
	GAIM_WEBSITE,
	plugin_load,
	NULL,
	NULL,
	NULL,
	NULL,
	NULL,
	NULL
};

static void
init_plugin(GaimPlugin *plugin)
{
}

GAIM_INIT_PLUGIN(history, init_plugin, info)