helos1/extlib/libvterm/mouse.c
2021-10-10 14:39:17 +08:00

90 lines
2.3 KiB
C

#include "vterm_internal.h"
#include "utf8.h"
static void output_mouse(VTermState *state, int code, int pressed, int modifiers, int col, int row) {
modifiers <<= 2;
switch (state->mouse_protocol) {
case MOUSE_X10:
if (col + 0x21 > 0xff)
col = 0xff - 0x21;
if (row + 0x21 > 0xff)
row = 0xff - 0x21;
if (!pressed)
code = 3;
vterm_push_output_sprintf_ctrl(state->vt, C1_CSI, "M%c%c%c", (code | modifiers) + 0x20, col + 0x21, row + 0x21);
break;
case MOUSE_UTF8: {
char utf8[18];
size_t len = 0;
if (!pressed)
code = 3;
len += fill_utf8((code | modifiers) + 0x20, utf8 + len);
len += fill_utf8(col + 0x21, utf8 + len);
len += fill_utf8(row + 0x21, utf8 + len);
utf8[len] = 0;
vterm_push_output_sprintf_ctrl(state->vt, C1_CSI, "M%s", utf8);
} break;
case MOUSE_SGR:
vterm_push_output_sprintf_ctrl(state->vt, C1_CSI, "<%d;%d;%d%c", code | modifiers, col + 1, row + 1, pressed ? 'M' : 'm');
break;
case MOUSE_RXVT:
if (!pressed)
code = 3;
vterm_push_output_sprintf_ctrl(state->vt, C1_CSI, "%d;%d;%dM", code | modifiers, col + 1, row + 1);
break;
}
}
void vterm_mouse_move(VTerm *vt, int row, int col, VTermModifier mod) {
VTermState *state = vt->state;
if (col == state->mouse_col && row == state->mouse_row)
return;
state->mouse_col = col;
state->mouse_row = row;
if ((state->mouse_flags & MOUSE_WANT_DRAG && state->mouse_buttons) ||
(state->mouse_flags & MOUSE_WANT_MOVE)) {
int button = state->mouse_buttons & 0x01 ? 1 :
state->mouse_buttons & 0x02 ? 2 :
state->mouse_buttons & 0x04 ? 3 :
4;
output_mouse(state, button - 1 + 0x20, 1, mod, col, row);
}
}
void vterm_mouse_button(VTerm *vt, int button, bool pressed, VTermModifier mod) {
VTermState *state = vt->state;
int old_buttons = state->mouse_buttons;
if (button > 0 && button <= 3) {
if (pressed)
state->mouse_buttons |= (1 << (button - 1));
else
state->mouse_buttons &= ~(1 << (button - 1));
}
/* Most of the time we don't get button releases from 4/5 */
if (state->mouse_buttons == old_buttons && button < 4)
return;
if (button < 4) {
output_mouse(state, button - 1, pressed, mod, state->mouse_col, state->mouse_row);
} else if (button < 6) {
output_mouse(state, button - 4 + 0x40, pressed, mod, state->mouse_col, state->mouse_row);
}
}