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Merge branch 'unintrusive-compose-preedit' into 'master'

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Unintrusive compose preedit

See merge request GNOME/gtk!3220
This commit is contained in:
Matthias Clasen 2021-02-18 17:36:08 +00:00
commit 07295ac169
2 changed files with 125 additions and 3 deletions
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94
gtk/gtkimcontextsimple.c
View File

@ -930,9 +930,99 @@ gtk_im_context_simple_get_preedit_string (GtkIMContext *context,
for (i = 0; priv->compose_buffer[i]; i++)
{
if (priv->compose_buffer[i] == GDK_KEY_Multi_key)
g_string_append_unichar (s, 0x2384); /* U+2384 COMPOSITION SYMBOL */
{
/* We only show the Compose key visibly when it is the
* only glyph in the preedit, or when it occurs in the
* middle of the sequence. Sadly, the official character,
* U+2384, COMPOSITION SYMBOL, is bit too distracting, so
* we use U+00B7, MIDDLE DOT.
*/
if (priv->compose_buffer[1] == 0 || i > 0)
g_string_append (s, "·");
}
else
g_string_append_unichar (s, gdk_keyval_to_unicode (priv->compose_buffer[i]));
{
gunichar ch;
gboolean need_space;
if (GDK_KEY_dead_grave <= priv->compose_buffer[i] && priv->compose_buffer[i] <= GDK_KEY_dead_greek)
{
/* Sadly, not all the dead keysyms have spacing mark equivalents
* in Unicode. For those that don't, we use space + the non-spacing
* mark as an approximation
*/
switch (priv->compose_buffer[i])
{
#define CASE(keysym, unicode, sp) \
case GDK_KEY_dead_##keysym: ch = unicode; need_space = sp; break
CASE (grave, 0x60, 0);
CASE (acute, 0xb4, 0);
CASE (circumflex, 0x5e, 0);
CASE (tilde, 0x7e, 0);
CASE (macron, 0xaf, 0);
CASE (breve, 0x2d8, 0);
CASE (abovedot, 0x307, 1);
CASE (diaeresis, 0xa8, 0);
CASE (abovering, 0x2da, 0);
CASE (hook, 0x2c0, 0);
CASE (doubleacute, 0x2dd, 0);
CASE (caron, 0x2c7, 0);
CASE (cedilla, 0xb8, 0);
CASE (ogonek, 0x2db, 0);
CASE (iota, 0x37a, 0);
CASE (voiced_sound, 0x3099, 1);
CASE (semivoiced_sound, 0x309a, 1);
CASE (belowdot, 0x323, 1);
CASE (horn, 0x31b, 1);
CASE (stroke, 0x335, 1);
CASE (abovecomma, 0x2bc, 0);
CASE (abovereversedcomma, 0x2bd, 1);
CASE (doublegrave, 0x30f, 1);
CASE (belowring, 0x2f3, 0);
CASE (belowmacron, 0x2cd, 0);
CASE (belowcircumflex, 0x32d, 1);
CASE (belowtilde, 0x330, 1);
CASE (belowbreve, 0x32e, 1);
CASE (belowdiaeresis, 0x324, 1);
CASE (invertedbreve, 0x32f, 1);
CASE (belowcomma, 0x326, 1);
CASE (lowline, 0x5f, 0);
CASE (aboveverticalline, 0x2c8, 0);
CASE (belowverticalline, 0x2cc, 0);
CASE (longsolidusoverlay, 0x338, 1);
CASE (a, 0x363, 1);
CASE (A, 0x363, 1);
CASE (e, 0x364, 1);
CASE (E, 0x364, 1);
CASE (i, 0x365, 1);
CASE (I, 0x365, 1);
CASE (o, 0x366, 1);
CASE (O, 0x366, 1);
CASE (u, 0x367, 1);
CASE (U, 0x367, 1);
CASE (small_schwa, 0x1dea, 1);
CASE (capital_schwa, 0x1dea, 1);
#undef CASE
default:
need_space = FALSE;
ch = gdk_keyval_to_unicode (priv->compose_buffer[i]);
break;
}
if (ch)
{
if (need_space)
g_string_append_c (s, ' ');
g_string_append_unichar (s, ch);
}
}
else
{
ch = gdk_keyval_to_unicode (priv->compose_buffer[i]);
if (ch)
g_string_append_unichar (s, ch);
}
}
}
}

34
gtk/gtkimcontextwayland.c
View File

@ -570,6 +570,38 @@ gtk_im_context_wayland_set_client_widget (GtkIMContext *context,
}
}
/* We want a unified experience between GtkIMContextSimple and IBus / Wayland
* when it comes to Compose sequences. IBus initial implementation of preedit
* for Compose sequences shows U+2384, which has been described as 'distracting'.
* This function tries to detect this case, and tweaks the text to match what
* GtkIMContextSimple produces.
*/
static char *
tweak_preedit (const char *text)
{
GString *s;
guint len;
s = g_string_new ("");
len = g_utf8_strlen (text, -1);
for (const char *p = text; *p; p = g_utf8_next_char (p))
{
gunichar ch = g_utf8_get_char (p);
if (ch == 0x2384)
{
if (len == 1 || p > text)
g_string_append (s, "·");
}
else
g_string_append_unichar (s, ch);
}
return g_string_free (s, FALSE);
}
static void
gtk_im_context_wayland_get_preedit_string (GtkIMContext *context,
char **str,
@ -599,7 +631,7 @@ gtk_im_context_wayland_get_preedit_string (GtkIMContext *context,
context_wayland->current_preedit.text ? context_wayland->current_preedit.text : "";
if (str)
*str = g_strdup (preedit_str);
*str = tweak_preedit (preedit_str);
if (cursor_pos)
*cursor_pos = g_utf8_strlen (preedit_str,
context_wayland->current_preedit.cursor_begin);