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#include "wayfire/signal-definitions.hpp"
#include "wayfire/signal-provider.hpp"
#include <wayfire/plugin.hpp>
#include <wayfire/bindings-repository.hpp>
#include "wayfire/core.hpp"
#include "wayfire/seat.hpp"
#include <map>
namespace wf
{
static std::string to_lower(std::string str)
{
std::transform(str.begin(), str.end(), str.begin(), tolower);
return str;
}
static const std::map<std::string, uint32_t> mod_name_to_mod = {
{to_lower(XKB_MOD_NAME_SHIFT), WLR_MODIFIER_SHIFT},
{to_lower(XKB_MOD_NAME_CAPS), WLR_MODIFIER_CAPS},
{to_lower(XKB_MOD_NAME_CTRL), WLR_MODIFIER_CTRL},
{"ctrl", WLR_MODIFIER_CTRL},
{to_lower(XKB_MOD_NAME_ALT), WLR_MODIFIER_ALT},
{"alt", WLR_MODIFIER_ALT},
{to_lower(XKB_MOD_NAME_NUM), WLR_MODIFIER_MOD2},
{"mod3", WLR_MODIFIER_MOD3},
{to_lower(XKB_MOD_NAME_LOGO), WLR_MODIFIER_LOGO},
{"mod5", WLR_MODIFIER_MOD5},
};
static uint32_t parse_modifier(std::string mod_name)
{
auto it = mod_name_to_mod.find(to_lower(mod_name));
if (it != mod_name_to_mod.end())
{
return it->second;
}
return 0;
}
std::vector<std::string> tokenize_at(std::string str, char token)
{
std::vector<std::string> tokens;
std::istringstream iss(str);
std::string token_str;
while (std::getline(iss, token_str, token))
{
tokens.push_back(token_str);
}
return tokens;
}
struct xkb_binding_t
{
uint32_t mods;
std::string keysym;
bool operator ==(const xkb_binding_t& other) const
{
return (mods == other.mods) && (keysym == other.keysym);
}
};
static std::optional<xkb_binding_t> parse_keybinding_xkb(std::string binding)
{
binding.erase(std::remove(binding.begin(), binding.end(), ' '), binding.end());
auto tokens = tokenize_at(binding, '+');
if (tokens.empty())
{
return std::nullopt;
}
uint32_t mods = 0;
for (size_t i = 0; i < tokens.size() - 1; i++)
{
auto mod = parse_modifier(tokens[i]);
if (!mod)
{
return std::nullopt;
}
mods |= mod;
}
return xkb_binding_t{mods, tokens.back()};
}
class xkb_bindings_t : public wf::plugin_interface_t
{
public:
void init() override
{
wf::get_core().connect(&on_parse_extension);
wf::get_core().connect(&on_keyboard_key);
wf::get_core().bindings->reparse_extensions();
}
void fini() override
{
on_parse_extension.disconnect();
wf::get_core().bindings->reparse_extensions();
}
wf::signal::connection_t<parse_activator_extension_signal> on_parse_extension =
[=] (parse_activator_extension_signal *ev)
{
if (auto binding = parse_keybinding_xkb(ev->extension_binding))
{
ev->tag = binding.value();
}
};
wf::signal::connection_t<input_event_signal<wlr_keyboard_key_event>> on_keyboard_key =
[=] (input_event_signal<wlr_keyboard_key_event> *ev)
{
if (!ev->device || (ev->mode == wf::input_event_processing_mode_t::IGNORE) ||
(ev->event->state != WL_KEYBOARD_KEY_STATE_PRESSED))
{
return;
}
auto keyboard = wlr_keyboard_from_input_device(ev->device);
xkb_keysym_t sym = xkb_state_key_get_one_sym(keyboard->xkb_state, ev->event->keycode + 8);
if (sym == XKB_KEY_NoSymbol)
{
return;
}
static constexpr size_t max_keysym_len = 128;
char buffer[max_keysym_len];
size_t len = xkb_keysym_get_name(sym, buffer, max_keysym_len);
std::string keysym = std::string(buffer, len);
uint32_t mods = wf::get_core().seat->get_keyboard_modifiers();
wf::activator_data_t data = {
.source = wf::activator_source_t::KEYBINDING,
.activation_data = ev->event->keycode
};
if (wf::get_core().bindings->handle_extension(xkb_binding_t{mods, keysym}, data))
{
ev->mode = wf::input_event_processing_mode_t::NO_CLIENT;
}
};
};
}
DECLARE_WAYFIRE_PLUGIN(wf::xkb_bindings_t);
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