212 lines
5.6 KiB
C
212 lines
5.6 KiB
C
/* -*- Mode: C ; c-basic-offset: 2 -*- */
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/*
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* LADI Session Handler (ladish)
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*
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* Copyright (C) 2010,2011 Nedko Arnaudov <nedko@arnaudov.name>
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*
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**************************************************************************
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* This file implements the recent project functionality
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**************************************************************************
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*
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* LADI Session Handler is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* LADI Session Handler is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
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* or write to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "recent_projects.h"
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#include "recent_store.h"
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#include "../common/catdup.h"
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#include "../dbus_constants.h"
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#include "room.h"
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#define RECENT_PROJECTS_STORE_FILE "recent_projects"
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#define RECENT_PROJECTS_STORE_MAX_ITEMS 50
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static ladish_recent_store_handle g_recent_projects_store;
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bool ladish_recent_projects_init(void)
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{
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char * path;
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bool ret;
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path = catdup(g_base_dir, "/" RECENT_PROJECTS_STORE_FILE);
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if (path == NULL)
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{
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log_error("catdup() failed to compose recent projects store file path");
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return false;
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}
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ret = ladish_recent_store_create(path, RECENT_PROJECTS_STORE_MAX_ITEMS, &g_recent_projects_store);
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if (!ret)
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{
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log_error("creation of recent projects store failed");
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}
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free(path);
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return ret;
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}
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void ladish_recent_projects_uninit(void)
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{
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ladish_recent_store_destroy(g_recent_projects_store);
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}
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void ladish_recent_project_use(const char * project_path)
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{
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ladish_recent_store_use_item(g_recent_projects_store, project_path);
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}
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/**********************************************************************************/
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/* D-Bus methods */
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/**********************************************************************************/
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struct recent_projects_callback_context
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{
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DBusMessageIter array_iter;
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uint16_t max_items;
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bool error;
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};
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#define ctx_ptr ((struct recent_projects_callback_context *)callback_context)
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bool recent_projects_callback(void * callback_context, const char * project_path)
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{
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DBusMessageIter struct_iter;
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DBusMessageIter dict_iter;
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char * name;
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ASSERT(ctx_ptr->max_items > 0);
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name = ladish_get_project_name(project_path);
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if (!dbus_message_iter_open_container(&ctx_ptr->array_iter, DBUS_TYPE_STRUCT, NULL, &struct_iter))
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{
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ctx_ptr->error = true;
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goto exit;
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}
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if (!dbus_message_iter_append_basic(&struct_iter, DBUS_TYPE_STRING, &project_path))
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{
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ctx_ptr->error = true;
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goto close_struct;
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}
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if (!dbus_message_iter_open_container(&struct_iter, DBUS_TYPE_ARRAY, "{sv}", &dict_iter))
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{
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ctx_ptr->error = true;
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goto close_struct;
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}
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if (!cdbus_maybe_add_dict_entry_string(&dict_iter, "name", name))
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{
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ctx_ptr->error = true;
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goto close_dict;
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}
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close_dict:
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if (!dbus_message_iter_close_container(&struct_iter, &dict_iter))
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{
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ctx_ptr->error = true;
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}
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close_struct:
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if (!dbus_message_iter_close_container(&ctx_ptr->array_iter, &struct_iter))
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{
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ctx_ptr->error = true;
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}
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exit:
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free(name); /* safe if name is NULL */
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if (ctx_ptr->error)
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{
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return false; /* stop the iteration if error occurs */
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}
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ctx_ptr->max_items--;
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/* stop iteration if the requested max is reached */
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return ctx_ptr->max_items > 0;
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}
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#undef ctx_ptr
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static void get(struct cdbus_method_call * call_ptr)
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{
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DBusMessageIter iter;
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struct recent_projects_callback_context ctx;
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if (!dbus_message_get_args(call_ptr->message, &cdbus_g_dbus_error, DBUS_TYPE_UINT16, &ctx.max_items, DBUS_TYPE_INVALID))
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{
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cdbus_error(call_ptr, DBUS_ERROR_INVALID_ARGS, "Invalid arguments to method \"%s\": %s", call_ptr->method_name, cdbus_g_dbus_error.message);
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dbus_error_free(&cdbus_g_dbus_error);
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return;
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}
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if (ctx.max_items == 0)
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{
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cdbus_error(
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call_ptr,
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DBUS_ERROR_INVALID_ARGS,
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"Invalid arguments to method \"%s\": max cannot be 0",
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call_ptr->method_name);
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}
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call_ptr->reply = dbus_message_new_method_return(call_ptr->message);
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if (call_ptr->reply == NULL)
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{
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goto fail;
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}
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dbus_message_iter_init_append(call_ptr->reply, &iter);
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if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(sa{sv})", &ctx.array_iter))
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{
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goto fail_unref;
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}
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ctx.error = false;
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ladish_recent_store_iterate_items(g_recent_projects_store, &ctx, recent_projects_callback);
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if (ctx.error)
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{
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goto fail_unref;
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}
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if (!dbus_message_iter_close_container(&iter, &ctx.array_iter))
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{
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goto fail_unref;
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}
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return;
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fail_unref:
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dbus_message_unref(call_ptr->reply);
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call_ptr->reply = NULL;
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fail:
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log_error("Ran out of memory trying to construct method return");
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}
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CDBUS_METHOD_ARGS_BEGIN(get, "Get list of recent items")
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CDBUS_METHOD_ARG_DESCRIBE_IN("max", "q", "Max number of items caller is interested in")
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CDBUS_METHOD_ARG_DESCRIBE_OUT("items", "a(sa{sv})", "Item list")
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CDBUS_METHOD_ARGS_END
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CDBUS_METHODS_BEGIN
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CDBUS_METHOD_DESCRIBE(get, get)
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CDBUS_METHODS_END
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CDBUS_INTERFACE_DEFAULT_HANDLER_METHODS_ONLY(g_iface_recent_items, IFACE_RECENT_ITEMS)
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