xim: add callback preedit and UTF-8 negotiation

This commit is contained in:
2026-08-14 17:20:38 +09:00
parent 2376035524
commit 2b4c509d0d
5 changed files with 716 additions and 21 deletions

View File

@@ -1,6 +1,174 @@
#include <xcb/xcb.h>
#include <xcb-imdkit/imdkit.h>
static void wirecommit(xcb_im_t*, xcb_im_input_context_t*, uint32_t,
const char*, uint32_t, uint32_t);
static void wirestart(xcb_im_t*, xcb_im_input_context_t*);
static void wiredraw(xcb_im_t*, xcb_im_input_context_t*,
xcb_im_preedit_draw_fr_t*);
static void wiredone(xcb_im_t*, xcb_im_input_context_t*);
static void* wiregetdata(xcb_im_input_context_t*);
static int wireflush(xcb_connection_t*);
#define xcb_im_commit_string wirecommit
#define xcb_im_preedit_start_callback wirestart
#define xcb_im_preedit_draw_callback wiredraw
#define xcb_im_preedit_done_callback wiredone
#define xcb_im_input_context_get_data wiregetdata
#define xcb_flush wireflush
#include "xim/xim.c"
#undef xcb_im_commit_string
#undef xcb_im_preedit_start_callback
#undef xcb_im_preedit_draw_callback
#undef xcb_im_preedit_done_callback
#undef xcb_im_input_context_get_data
#undef xcb_flush
#include "cutest/cutest.h"
enum
{
Wstart,
Wdraw,
Wdone,
Wcommit,
Maxwire = 64,
};
typedef struct Wirecall Wirecall;
struct Wirecall
{
int op;
xcb_im_input_context_t *ic;
u32int caret;
u32int first;
u32int changed;
u32int status;
u32int flag;
u32int keysym;
int nbyte;
int nfeedback;
uchar text[Maxutf];
u32int feedback[Maxrunes];
};
typedef struct Icbinding Icbinding;
struct Icbinding
{
xcb_im_input_context_t *ic;
void *data;
};
static Wirecall wirecalls[Maxwire];
static Icbinding icbindings[8];
static int nwirecalls;
static int nflush;
static Wirecall*
newwire(int op, xcb_im_input_context_t *ic)
{
Wirecall *call;
if(nwirecalls >= nelem(wirecalls))
return nil;
call = &wirecalls[nwirecalls++];
memset(call, 0, sizeof *call);
call->op = op;
call->ic = ic;
return call;
}
static void
wirecommit(xcb_im_t *im, xcb_im_input_context_t *ic, uint32_t flag,
const char *text, uint32_t nbyte, uint32_t keysym)
{
Wirecall *call;
USED(im);
call = newwire(Wcommit, ic);
if(call == nil)
return;
call->flag = flag;
call->keysym = keysym;
call->nbyte = min(nbyte, sizeof call->text);
if(call->nbyte > 0)
memmove(call->text, text, call->nbyte);
}
static void
wirestart(xcb_im_t *im, xcb_im_input_context_t *ic)
{
USED(im);
newwire(Wstart, ic);
}
static void
wiredraw(xcb_im_t *im, xcb_im_input_context_t *ic,
xcb_im_preedit_draw_fr_t *frame)
{
Wirecall *call;
USED(im);
call = newwire(Wdraw, ic);
if(call == nil)
return;
call->caret = frame->caret;
call->first = frame->chg_first;
call->changed = frame->chg_length;
call->status = frame->status;
call->nbyte = min(frame->length_of_preedit_string,
sizeof call->text);
if(call->nbyte > 0)
memmove(call->text, frame->preedit_string, call->nbyte);
call->nfeedback = min(frame->feedback_array.size,
nelem(call->feedback));
if(call->nfeedback > 0)
memmove(call->feedback, frame->feedback_array.items,
call->nfeedback * sizeof call->feedback[0]);
}
static void
wiredone(xcb_im_t *im, xcb_im_input_context_t *ic)
{
USED(im);
newwire(Wdone, ic);
}
static void*
wiregetdata(xcb_im_input_context_t *ic)
{
int i;
for(i = 0; i < nelem(icbindings); i++)
if(icbindings[i].ic == ic)
return icbindings[i].data;
return nil;
}
static int
wireflush(xcb_connection_t *c)
{
USED(c);
nflush++;
return 1;
}
static void
wireclear(void)
{
memset(wirecalls, 0, sizeof wirecalls);
memset(icbindings, 0, sizeof icbindings);
nwirecalls = 0;
nflush = 0;
preowner = nil;
}
static void
wirebind(int n, xcb_im_input_context_t *ic, Ic *state)
{
icbindings[n].ic = ic;
icbindings[n].data = state;
}
void testengineinit(int);
void testenginehandle(Keyreq*);
void* testengineowner(void);
@@ -112,6 +280,7 @@ nexttrace(struct ct *t, Ximfix *f, int op, Ic *state)
return req;
CT_EQ_INT(t, op, req.op);
CT_EQ_PTR(t, state, req.owner);
CT_EQ_INT(t, state->cap, req.cap);
CT_EQ_PTR(t, replyc, req.reply);
return req;
}
@@ -304,3 +473,308 @@ cleanup:
chanfree(freed);
ximend(&f);
}
void
xim_adapter_styles(struct ct *t)
{
static u32int want[] = {
XCB_IM_PreeditPosition | XCB_IM_StatusNothing,
XCB_IM_PreeditCallbacks | XCB_IM_StatusNothing,
XCB_IM_PreeditNothing | XCB_IM_StatusNothing,
};
Ic state;
int cap, i;
CT_EQ_SIZE(t, nelem(want), nelem(styles));
for(i = 0; i < nelem(want); i++){
CT_EQ_UINT(t, want[i], styles[i]);
CT_CHECK(t, stylecap(want[i], &cap));
CT_EQ_INT(t, i == 1 ? Cclientpreedit : 0, cap);
CT_CHECK(t, !(styles[i] & XCB_IM_PreeditNone));
}
CT_CHECK(t, !stylecap(XCB_IM_PreeditNone | XCB_IM_StatusNothing,
&cap));
CT_CHECK(t, !stylecap(XCB_IM_PreeditCallbacks | XCB_IM_StatusCallbacks,
&cap));
CT_EQ_INT(t, 0, cap);
memset(&state, 0, sizeof state);
setstyle(&state, XCB_IM_PreeditNone | XCB_IM_StatusNothing);
CT_EQ_UINT(t, XCB_IM_PreeditNothing | XCB_IM_StatusNothing,
state.style);
CT_EQ_INT(t, 0, state.cap);
setstyle(&state, XCB_IM_PreeditCallbacks | XCB_IM_StatusNothing);
CT_EQ_INT(t, Cclientpreedit, state.cap);
}
void
xim_adapter_encoding_negotiation(struct ct *t)
{
xcb_im_packet_header_fr_t hdr;
xcb_im_client_t *a, *b;
u16int selected;
a = (xcb_im_client_t*)(uintptr)1;
b = (xcb_im_client_t*)(uintptr)2;
memset(clientenc, 0, sizeof clientenc);
CT_EQ_SIZE(t, 2, nelem(encs));
CT_EQ_STR(t, "COMPOUND_TEXT", encs[0]);
CT_EQ_STR(t, "UTF8_STRING", encs[1]);
memset(&hdr, 0, sizeof hdr);
hdr.major_opcode = XCB_XIM_ENCODING_NEGOTIATION;
selected = 1;
callback(nil, a, nil, &hdr, nil, &selected, nil);
selected = 0;
callback(nil, b, nil, &hdr, nil, &selected, nil);
CT_EQ_INT(t, Eutf8, getencoding(a));
CT_EQ_INT(t, Ecompound, getencoding(b));
hdr.major_opcode = XCB_XIM_DISCONNECT;
callback(nil, a, nil, &hdr, nil, nil, nil);
CT_EQ_INT(t, Ecompound, getencoding(a));
CT_EQ_INT(t, Ecompound, getencoding(b));
hdr.major_opcode = XCB_XIM_CLOSE;
callback(nil, b, nil, &hdr, nil, nil, nil);
CT_EQ_PTR(t, nil, clientenc[0].client);
CT_EQ_PTR(t, nil, clientenc[1].client);
}
void
xim_adapter_callback_replacement(struct ct *t)
{
Ic state;
Str pre;
xcb_im_input_context_t *ic;
int i;
ic = (xcb_im_input_context_t*)(uintptr)3;
memset(&state, 0, sizeof state);
state.xic = ic;
state.style = XCB_IM_PreeditCallbacks | XCB_IM_StatusNothing;
state.encoding = Eutf8;
wireclear();
sinit(&pre, "k", strlen("k"));
updatepreedit(&state, &pre);
sinit(&pre, "한😀", strlen("한😀"));
updatepreedit(&state, &pre);
sclear(&pre);
updatepreedit(&state, &pre);
CT_EQ_INT(t, 5, nwirecalls);
CT_EQ_INT(t, Wstart, wirecalls[0].op);
CT_EQ_INT(t, Wdraw, wirecalls[1].op);
CT_EQ_UINT(t, 0, wirecalls[1].first);
CT_EQ_UINT(t, 0, wirecalls[1].changed);
CT_EQ_UINT(t, 1, wirecalls[1].caret);
CT_EQ_INT(t, 1, wirecalls[1].nfeedback);
CT_EQ_INT(t, Wdraw, wirecalls[2].op);
CT_EQ_UINT(t, 0, wirecalls[2].first);
CT_EQ_UINT(t, 1, wirecalls[2].changed);
CT_EQ_UINT(t, 2, wirecalls[2].caret);
CT_EQ_INT(t, strlen("한😀"), wirecalls[2].nbyte);
CT_EQ_MEM(t, "한😀", wirecalls[2].text, wirecalls[2].nbyte);
CT_EQ_INT(t, 2, wirecalls[2].nfeedback);
for(i = 0; i < wirecalls[2].nfeedback; i++)
CT_EQ_UINT(t, XCB_XIM_UNDERLINE, wirecalls[2].feedback[i]);
CT_EQ_INT(t, Wdraw, wirecalls[3].op);
CT_EQ_UINT(t, 2, wirecalls[3].changed);
CT_EQ_UINT(t, 1, wirecalls[3].status);
CT_EQ_INT(t, 0, wirecalls[3].nbyte);
CT_EQ_INT(t, Wdone, wirecalls[4].op);
CT_CHECK(t, !state.prestarted);
CT_EQ_INT(t, 0, state.nprerune);
CT_EQ_PTR(t, nil, preowner);
CT_EQ_INT(t, 1, nflush);
}
void
xim_adapter_callback_unicode(struct ct *t)
{
static char *text[] = {
"한글",
"かなカナ",
"漢字",
"𠀋",
"😀",
"❤️",
"👩‍💻",
};
Ic state;
Str pre;
Wirecall *call;
char *want;
size_t nwant;
int i;
xcb_compound_text_init();
for(i = 0; i < nelem(text); i++){
memset(&state, 0, sizeof state);
state.xic = (xcb_im_input_context_t*)(uintptr)(10+i);
state.style = XCB_IM_PreeditCallbacks | XCB_IM_StatusNothing;
state.encoding = Eutf8;
sinit(&pre, text[i], strlen(text[i]));
wireclear();
updatepreedit(&state, &pre);
CT_EQ_INT(t, 2, nwirecalls);
call = &wirecalls[1];
CT_EQ_INT(t, Wdraw, call->op);
CT_EQ_UINT(t, pre.n, call->caret);
CT_EQ_INT(t, pre.n, call->nfeedback);
CT_EQ_INT(t, strlen(text[i]), call->nbyte);
CT_EQ_MEM(t, text[i], call->text, call->nbyte);
memset(&state, 0, sizeof state);
state.xic = (xcb_im_input_context_t*)(uintptr)(20+i);
state.style = XCB_IM_PreeditCallbacks | XCB_IM_StatusNothing;
state.encoding = Ecompound;
wireclear();
updatepreedit(&state, &pre);
want = ximcompound(text[i], strlen(text[i]), &nwant);
if(!CT_CHECK(t, want != nil))
continue;
call = &wirecalls[1];
CT_EQ_SIZE(t, nwant, call->nbyte);
CT_EQ_MEM(t, want, call->text, nwant);
CT_EQ_UINT(t, pre.n, call->caret);
CT_EQ_INT(t, pre.n, call->nfeedback);
free(want);
}
}
static void
startstate(Ic *state, xcb_im_input_context_t *ic)
{
Str pre;
memset(state, 0, sizeof *state);
state->xic = ic;
state->style = XCB_IM_PreeditCallbacks | XCB_IM_StatusNothing;
state->encoding = Eutf8;
sinit(&pre, "", strlen(""));
updatepreedit(state, &pre);
}
void
xim_adapter_callback_cleanup(struct ct *t)
{
static int opcode[] = {
XCB_XIM_RESET_IC,
XCB_XIM_UNSET_IC_FOCUS,
XCB_XIM_DESTROY_IC,
};
xcb_im_packet_header_fr_t hdr;
xcb_im_client_t *client;
xcb_im_input_context_t *ic;
Ic state, *dead;
int i;
for(i = 0; i < nelem(opcode); i++){
ic = (xcb_im_input_context_t*)(uintptr)(30+i);
wireclear();
wirebind(0, ic, &state);
startstate(&state, ic);
memset(&hdr, 0, sizeof hdr);
hdr.major_opcode = opcode[i];
callback(nil, nil, ic, &hdr, nil, nil, nil);
CT_EQ_INT(t, 4, nwirecalls);
CT_EQ_INT(t, Wdraw, wirecalls[2].op);
CT_EQ_UINT(t, 1, wirecalls[2].changed);
CT_EQ_INT(t, Wdone, wirecalls[3].op);
CT_CHECK(t, !state.prestarted);
CT_EQ_PTR(t, nil, preowner);
}
client = (xcb_im_client_t*)(uintptr)40;
ic = (xcb_im_input_context_t*)(uintptr)40;
wireclear();
startstate(&state, ic);
state.client = client;
state.next = ics;
ics = &state;
hdr.major_opcode = XCB_XIM_DISCONNECT;
callback(nil, client, nil, &hdr, nil, nil, nil);
ics = state.next;
CT_EQ_INT(t, Wdraw, wirecalls[2].op);
CT_EQ_INT(t, Wdone, wirecalls[3].op);
CT_CHECK(t, !state.prestarted);
ic = (xcb_im_input_context_t*)(uintptr)41;
wireclear();
dead = calloc(1, sizeof *dead);
if(!CT_CHECK(t, dead != nil))
return;
dead->next = ics;
ics = dead;
startstate(dead, ic);
icfree(dead);
CT_EQ_INT(t, 4, nwirecalls);
CT_EQ_INT(t, Wdraw, wirecalls[2].op);
CT_EQ_INT(t, Wdone, wirecalls[3].op);
CT_EQ_PTR(t, nil, preowner);
}
void
xim_adapter_callback_transfer(struct ct *t)
{
Ximfix f;
Ic a, b;
xcb_im_input_context_t *aic;
Keyres res;
Str pre;
aic = (xcb_im_input_context_t*)(uintptr)50;
memset(&a, 0, sizeof a);
memset(&b, 0, sizeof b);
if(!ximbegin(t, &f, LangJP))
goto cleanup;
wireclear();
a.xic = aic;
a.style = XCB_IM_PreeditCallbacks | XCB_IM_StatusNothing;
a.encoding = Eutf8;
sinit(&pre, "", strlen(""));
updatepreedit(&a, &pre);
keypress(&b, 'x', 0, &res);
nexttrace(t, &f, Keypress, &b);
CT_EQ_INT(t, 4, nwirecalls);
CT_EQ_INT(t, Wdraw, wirecalls[2].op);
CT_EQ_INT(t, Wdone, wirecalls[3].op);
CT_CHECK(t, !a.prestarted);
CT_EQ_PTR(t, nil, preowner);
release(&b);
nexttrace(t, &f, Keyrelease, &b);
cleanup:
preowner = nil;
ximend(&f);
}
void
xim_adapter_commit_encoding(struct ct *t)
{
static char text[] = "한𠀋❤️👩‍💻";
Ic state;
xcb_im_input_context_t *ic;
char *want;
size_t nwant;
ic = (xcb_im_input_context_t*)(uintptr)60;
memset(&state, 0, sizeof state);
state.xic = ic;
state.encoding = Eutf8;
wireclear();
commit(&state, text, strlen(text));
CT_EQ_INT(t, 1, nwirecalls);
CT_EQ_INT(t, Wcommit, wirecalls[0].op);
CT_EQ_UINT(t, XCB_XIM_LOOKUP_CHARS, wirecalls[0].flag);
CT_EQ_UINT(t, 0, wirecalls[0].keysym);
CT_EQ_INT(t, strlen(text), wirecalls[0].nbyte);
CT_EQ_MEM(t, text, wirecalls[0].text, wirecalls[0].nbyte);
xcb_compound_text_init();
state.encoding = Ecompound;
wireclear();
commit(&state, text, strlen(text));
want = ximcompound(text, strlen(text), &nwant);
if(!CT_CHECK(t, want != nil))
return;
CT_EQ_INT(t, 1, nwirecalls);
CT_EQ_INT(t, Wcommit, wirecalls[0].op);
CT_EQ_SIZE(t, nwant, wirecalls[0].nbyte);
CT_EQ_MEM(t, want, wirecalls[0].text, nwant);
free(want);
}