81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
// Copyright (C) 2022 RozK
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program 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 Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "../events.hpp"
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#include <X11/Xlib.h>
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extern Display * rk_display;
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extern Window rk_window;
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extern XIC rk_input_context;
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unsigned rk_events_mask = KeyPressMask | KeyReleaseMask;
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rk_uint rk_consume_events(
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rk_event * events,
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rk_uint max_events) {
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if (!events || !max_events) {
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return 0;
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}
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XEvent x11_event;
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unsigned nevents = 0;
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wchar_t string[256];
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KeySym keysym;
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Status status;
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while (nevents < max_events && XCheckWindowEvent(rk_display, rk_window, rk_events_mask, &x11_event)) {
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if (XFilterEvent(&x11_event, 0)) {
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continue;
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}
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rk_event & event = events[nevents++];
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switch (x11_event.type) {
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case KeyPress:
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event.type = RK_EVENT_KEY_PRESS;
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event.key.code = x11_event.xkey.keycode;
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XwcLookupString(rk_input_context, &x11_event.xkey, string, 256, &keysym, &status);
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switch (status) {
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case XLookupChars:
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event.key.symbol = XLookupKeysym(&x11_event.xkey, 0);
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event.key.character = string[0];
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break;
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case XLookupKeySym:
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event.key.symbol = keysym;
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event.key.character = 0;
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break;
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case XLookupBoth:
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event.key.symbol = keysym;
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event.key.character = string[0];
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break;
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default:
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event.key.symbol = 0;
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event.key.character = 0;
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break;
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}
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break;
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case KeyRelease:
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event.type = RK_EVENT_KEY_RELEASE;
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event.key.code = x11_event.xkey.keycode;
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event.key.symbol = XLookupKeysym(&x11_event.xkey, 0);
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event.key.character = 0;
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break;
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}
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}
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return nevents;
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}
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void rk_flush_events() {
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XEvent x11_event;
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while (XCheckWindowEvent(rk_display, rk_window, rk_events_mask, &x11_event)) {
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}
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}
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