transmission/gtk/FaviconCache.cc

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// This file Copyright © 2012-2023 Mnemosyne LLC.
// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
// or any future license endorsed by Mnemosyne LLC.
// License text can be found in the licenses/ folder.
#include <libtransmission/favicon-cache.h>
#include <gdkmm/pixbuf.h>
#include <giomm/memoryinputstream.h>
#include <glibmm/error.h>
#include <glibmm/main.h>
#include <glibmm/miscutils.h>
using Icon = Glib::RefPtr<Gdk::Pixbuf>;
template<>
Icon FaviconCache<Icon>::create_from_file(std::string_view filename) const
{
try
{
return Gdk::Pixbuf::create_from_file(std::string{ filename }, Width, Height, false);
}
catch (Glib::Error const&)
{
return {};
}
}
template<>
Icon FaviconCache<Icon>::create_from_data(void const* data, size_t datalen) const
{
try
{
auto memory_stream = Gio::MemoryInputStream::create();
memory_stream->add_data(data, datalen, nullptr);
return Gdk::Pixbuf::create_from_stream_at_scale(memory_stream, Width, Height, false);
}
catch (Glib::Error const&)
{
return {};
}
}
template<>
std::string FaviconCache<Icon>::app_cache_dir() const
{
return fmt::format("{:s}/{:s}", Glib::get_user_cache_dir(), "transmission");
}
template<>
void FaviconCache<Icon>::add_to_ui_thread(std::function<void()> idlefunc)
{
Glib::signal_idle().connect_once([idlefunc = std::move(idlefunc)]() { idlefunc(); });
}