engine: no candidate is chosen until the user moves to one; Space converts

A complete Japanese reading showed its candidates with the first row
highlighted, yet Enter committed the reading unless the user had moved
to a candidate: the highlight lied.  Now sel is -1 while nothing is
chosen, and it alone says what Enter commits; candidatechosen goes.

Every key that ends a composition — Enter, Tab, a language switch, a
special key, a modifier chord, typing on — now commits the chosen
candidate through one flush; before, only Enter and Tab did, and Ctrl+S
after choosing 漢字 committed かんじ.

Space in a Japanese mode is the conversion key, as in every other
Japanese IME: it steps through the candidates (Shift+Space backwards,
both wrapping) and commits a reading that has none, without typing a
space.  Backspace and Escape on a chosen candidate go back to the
reading first.  Tab in a search wraps through the same cyclekouho.

reset() no longer forgets the caret: a chosen candidate confirmed by
typing on would otherwise redraw the next reading at the pointer.
This commit is contained in:
2026-08-17 00:52:50 +09:00
parent ea363ca792
commit e8519b4e06
3 changed files with 148 additions and 100 deletions

View File

@@ -116,6 +116,9 @@ engine_backspace_clears_candidates(struct ct *t)
im.nkouho = 1;
im.sel = 0;
CT_CHECK(t, keystroke(Kback, 0, &com));
CT_EQ_INT(t, -1, im.sel);
checkstr(t, "chosen candidate backspace", "na", &im.raw);
CT_CHECK(t, keystroke(Kback, 0, &com));
checkstr(t, "backspace commit", "", &com);
checkstr(t, "pending romaji after backspace", "n", &im.raw);
impre(&im, &shown);
@@ -162,7 +165,7 @@ engine_candidate_shortcut_modifiers(struct ct *t)
init();
im.kouho[9] = mkstr("must-not-select");
im.nkouho = 10;
im.sel = 9;
im.sel = -1;
selected = im.kouho[9];
sclear(&com);
CT_CHECK(t, !keystroke('1', mods[i], &com));
@@ -277,7 +280,6 @@ engine_active_owner_reset(struct ct *t)
CT_EQ_PTR(t, &owner, activeowner);
checkstr(t, "reset hands the reading back", "", &res.commit);
CT_EQ_INT(t, 0, res.preedit.n);
CT_CHECK(t, !caret.valid);
res = ownerrequest(&owner, Keypress, 'n', 0);
checkstr(t, "same owner after reset", "", &res.preedit);
}
@@ -633,7 +635,7 @@ engine_language_switch_state(struct ct *t)
if(steps[i].stale){
im.kouho[0] = mkstr("stale");
im.nkouho = 1;
im.sel = 0;
im.sel = -1;
}
sclear(&com);
eaten = keystroke(steps[i].key, steps[i].mod, &com);
@@ -693,7 +695,6 @@ struct Searchfix
Trie *dict;
int activecap;
Drawcmd lastdraw;
int candidatechosen;
};
static int
@@ -723,7 +724,6 @@ setcandidates(int n)
im.kouho[i] = mkstr(name);
}
im.nkouho = n;
selectfirst();
}
static void
@@ -873,6 +873,7 @@ engine_candidate_completion(struct ct *t)
im.pre = mkstr("reading");
sclear(&com);
CT_CHECK(t, keystroke(Kdown, 0, &com));
CT_CHECK(t, keystroke(Kdown, 0, &com));
CT_CHECK(t, keystroke(Kret, 0, &com));
checkstr(t, "explicit candidate", "c2", &com);
@@ -888,13 +889,14 @@ engine_candidate_completion(struct ct *t)
CT_CHECK(t, keystroke(Kret, 0, &com));
checkstr(t, "Enter without candidates", "reading", &com);
/* A digit with no such row on the page is an ordinary key. */
/* A digit with no such row on the page is an ordinary key: it
* confirms the candidate paged to and passes on. */
candidatebegin(32);
im.pre = mkstr("reading");
im.sel = 27;
sclear(&com);
CT_CHECK(t, !keystroke('9', 0, &com));
checkstr(t, "unavailable short-page digit", "reading", &com);
checkstr(t, "unavailable short-page digit", "c28", &com);
CT_EQ_INT(t, 0, im.nkouho);
}
@@ -913,7 +915,6 @@ searchsave(Searchfix *f, int lang)
f->dict = f->dictlang->dict;
f->activecap = activecap;
f->lastdraw = lastdraw;
f->candidatechosen = candidatechosen;
draindraw(nil);
}
@@ -956,7 +957,6 @@ searchend(Searchfix *f)
search = f->search;
activecap = f->activecap;
lastdraw = f->lastdraw;
candidatechosen = f->candidatechosen;
}
void
@@ -982,7 +982,7 @@ engine_popup_preedit_capability(struct ct *t)
if(CT_CHECK(t, draindraw(&dc) > 0)){
CT_EQ_INT(t, 0, dc.pre.n);
CT_EQ_INT(t, 1, dc.nkouho);
CT_EQ_INT(t, 0, dc.sel);
CT_EQ_INT(t, -1, dc.sel);
checkstr(t, "client-preedit candidate", "", &dc.kouho[0]);
}
@@ -992,11 +992,11 @@ engine_popup_preedit_capability(struct ct *t)
if(CT_CHECK(t, draindraw(&dc) > 0)){
checkstr(t, "popup preedit", "", &dc.pre);
CT_EQ_INT(t, 1, dc.nkouho);
CT_EQ_INT(t, 0, dc.sel);
CT_EQ_INT(t, -1, dc.sel);
checkstr(t, "popup candidate", "", &dc.kouho[0]);
}
CT_EQ_INT(t, 1, im.nkouho);
CT_EQ_INT(t, 0, im.sel);
CT_EQ_INT(t, -1, im.sel);
checkstr(t, "retained popup candidate", "", &im.kouho[0]);
kres = ownerrequestcap(&client, 0, Keycap, 0, 0);
@@ -1016,11 +1016,11 @@ engine_popup_preedit_capability(struct ct *t)
if(CT_CHECK(t, draindraw(&dc) > 0)){
CT_EQ_INT(t, 0, dc.pre.n);
CT_EQ_INT(t, 1, dc.nkouho);
CT_EQ_INT(t, 0, dc.sel);
CT_EQ_INT(t, -1, dc.sel);
checkstr(t, "restored client candidate", "", &dc.kouho[0]);
}
CT_EQ_INT(t, 1, im.nkouho);
CT_EQ_INT(t, 0, im.sel);
CT_EQ_INT(t, -1, im.sel);
checkstr(t, "retained client candidate", "", &im.kouho[0]);
kres = ownerrequestcap(&client, Cclientpreedit, Keycap, 0, 0);
CT_CHECK(t, kres.eaten);
@@ -1116,14 +1116,64 @@ engine_japanese_candidates(struct ct *t)
checkstr(t, "complete Japanese reading", "かんじ", &shown);
if(!CT_EQ_INT(t, 2, im.nkouho))
goto cleanup;
CT_EQ_INT(t, 0, im.sel);
CT_EQ_INT(t, -1, im.sel);
checkstr(t, "candidate one", "漢字", &im.kouho[0]);
checkstr(t, "candidate two", "幹事", &im.kouho[1]);
CT_CHECK(t, keystroke(Kdown, 0, &com));
CT_EQ_INT(t, 0, im.sel);
CT_CHECK(t, keystroke(Kdown, 0, &com));
CT_EQ_INT(t, 1, im.sel);
CT_CHECK(t, keystroke(Kret, 0, &com));
checkstr(t, "selected Kanji", "幹事", &com);
CT_EQ_INT(t, 0, im.nkouho);
/* Space converts: it steps through the candidates and wraps;
* typing on takes the chosen one; Backspace goes back. */
if(!typekeys(t, "kanji", &com))
goto cleanup;
sclear(&com);
CT_CHECK(t, keystroke(' ', 0, &com));
CT_EQ_INT(t, 0, im.sel);
CT_CHECK(t, keystroke(' ', 0, &com));
CT_EQ_INT(t, 1, im.sel);
CT_CHECK(t, keystroke(' ', 0, &com));
CT_EQ_INT(t, 0, im.sel);
CT_CHECK(t, keystroke(' ', Mshift, &com));
CT_EQ_INT(t, 1, im.sel);
CT_CHECK(t, keystroke(Kback, 0, &com));
CT_EQ_INT(t, -1, im.sel);
CT_EQ_INT(t, 2, im.nkouho);
CT_CHECK(t, keystroke(' ', 0, &com));
CT_CHECK(t, keystroke('w', 0, &com));
CT_CHECK(t, keystroke('o', 0, &com));
checkstr(t, "typing on takes the candidate", "漢字", &com);
impre(&im, &shown);
checkstr(t, "reading after the candidate", "", &shown);
sclear(&com);
CT_CHECK(t, keystroke(' ', 0, &com));
checkstr(t, "Space commits a reading without candidates", "", &com);
CT_EQ_INT(t, 0, im.pre.n);
CT_EQ_INT(t, 0, im.raw.n);
CT_CHECK(t, !keystroke(' ', 0, &com));
sclear(&com);
if(!typekeys(t, "kanji", &com))
goto cleanup;
CT_CHECK(t, keystroke(' ', 0, &com));
CT_CHECK(t, keystroke(Kesc, 0, &com));
CT_EQ_INT(t, -1, im.sel);
impre(&im, &shown);
checkstr(t, "Escape goes back to the reading", "かんじ", &shown);
CT_CHECK(t, keystroke(Kesc, 0, &com));
CT_EQ_INT(t, 0, im.pre.n);
CT_EQ_INT(t, 0, im.raw.n);
CT_EQ_INT(t, 0, im.nkouho);
sclear(&com);
if(!typekeys(t, "kanji", &com))
goto cleanup;
CT_CHECK(t, keystroke(Kdown, 0, &com));
CT_CHECK(t, keystroke('s', Mctrl, &com));
checkstr(t, "language switch takes the candidate", "漢字", &com);
CT_EQ_INT(t, LangKO, im.l->lang);
im.l = jp;
/* Backspace looks a complete shorter reading up again. */
setdict(jp->dict, "かん", "");
if(!typekeys(t, "kanji", &com))
@@ -1179,8 +1229,8 @@ engine_japanese_backspace_and_boundaries(struct ct *t)
im.l = getlang(LangJP);
sclear(&com);
if(typekeys(t, "kanji", &com)){
CT_CHECK(t, keystroke(' ', 0, &com));
checkstr(t, "real input boundary", "かんじ ", &com);
CT_CHECK(t, keystroke(L'', 0, &com));
checkstr(t, "real input boundary", "かんじ", &com);
}
init();
@@ -1960,7 +2010,7 @@ engine_full_boundary_passthrough(struct ct *t)
im.pre.r[i] = L'';
im.pre.n = Maxrunes;
sclear(&com);
CT_CHECK(t, !keystroke(' ', 0, &com));
CT_CHECK(t, !keystroke(L'', 0, &com));
CT_EQ_INT(t, Maxrunes, com.n);
for(i = 0; i < Maxrunes; i++)
CT_EQ_UINT(t, L'', com.r[i]);
@@ -1973,9 +2023,9 @@ engine_full_boundary_passthrough(struct ct *t)
im.pre.r[i] = L'';
im.pre.n = Maxrunes-1;
sclear(&com);
CT_CHECK(t, keystroke(' ', 0, &com));
CT_CHECK(t, keystroke(L'', 0, &com));
CT_EQ_INT(t, Maxrunes, com.n);
CT_EQ_UINT(t, ' ', com.r[Maxrunes-1]);
CT_EQ_UINT(t, L'', com.r[Maxrunes-1]);
/* Typing on at the limit commits the kana and keeps the syllable. */
init();