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/*
* Copyright 2011 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the applicable version of the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of both the GNU Lesser General Public
* License version 3 along with this program. If not, see
* <http://www.gnu.org/licenses/>
**
* Authored by: Nick Dedekind <nick.dedekind@canonical.com>
*
*/
#include <Nux/Nux.h>
#include "UnityCore/GLibWrapper.h"
#include "UserThumbnailProvider.h"
#include "ThumbnailGenerator.h"
namespace unity
{
namespace UserThumbnailProvider
{
class UserThumbnailer : public Thumbnailer
{
public:
UserThumbnailer(std::string const& name, std::string const& command_line)
: name(name)
, command_line(command_line)
{}
std::string name;
std::string command_line;
virtual std::string GetName() const { return name; }
virtual bool Run(int size, std::string const& input_file, std::string& output_file, std::string& error_hint);
};
bool UserThumbnailer::Run(int size, std::string const& input_file, std::string& output_file, std::string& error_hint)
{
std::string tmp_command_line = command_line;
// replace size
size_t pos = tmp_command_line.find("%s");
std::stringstream ss; ss << size;
if (pos != std::string::npos) { tmp_command_line.replace(pos, 2, ss.str()); }
// replace input file name
pos = tmp_command_line.find("%u");
if (pos != std::string::npos) { tmp_command_line.replace(pos, 2, input_file); }
// replace output file name
pos = tmp_command_line.find("%o");
if (pos != std::string::npos) { tmp_command_line.replace(pos, 2, output_file); }
gint exit_status = 0;
GError* err = NULL;
g_spawn_command_line_sync(tmp_command_line.c_str(), NULL, NULL, &exit_status, &err);
if (err != NULL)
{
error_hint = err->message;
g_error_free (err);
return false;
}
else if (exit_status != 0)
{
std::stringstream ss;
ss << "Failed to create thumbnail. Program exited with exit_status=" << exit_status;
error_hint = ss.str();
return false;
}
return true;
}
void Initialise()
{
GError* err = NULL;
GDir* thumbnailer_dir = g_dir_open("/usr/share/thumbnailers", 0, &err);
if (err != NULL)
return;
const gchar* file;
while((file = g_dir_read_name(thumbnailer_dir)) != NULL)
{
std::string file_name(file);
if (file_name == "." || file_name == "..")
continue;
/*********************************
* READ SETTINGS
*********************************/
GKeyFile* key_file = g_key_file_new();
err=NULL;
if (!g_key_file_load_from_file (key_file, (std::string("/usr/share/thumbnailers/") + file_name).c_str(), G_KEY_FILE_NONE, &err))
{
g_key_file_free(key_file);
g_error_free(err);
continue;
}
err=NULL;
glib::String command_line(g_key_file_get_string (key_file, "Thumbnailer Entry", "Exec", &err));
if (err != NULL)
{
g_key_file_free(key_file);
g_error_free(err);
continue;
}
err=NULL;
gsize mime_count = 0;
gchar** mime_types = g_key_file_get_string_list (key_file, "Thumbnailer Entry", "MimeType", &mime_count, &err);
if (err != NULL)
{
g_key_file_free(key_file);
g_error_free(err);
continue;
}
Thumbnailer::Ptr thumbnailer(new UserThumbnailer(file_name, command_line.Value()));
std::list<std::string> mime_type_list;
for (gsize i = 0; i < mime_count && mime_types[i] != NULL; i++)
{
mime_type_list.push_front(mime_types[i]);
}
ThumbnailGenerator::RegisterThumbnailer(mime_type_list, thumbnailer);
g_strfreev(mime_types);
g_key_file_free(key_file);
}
g_dir_close(thumbnailer_dir);
}
} // namespace DefaultThumbnailProvider
} // namespace unity
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