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author | Matthias Clasen <mclasen@redhat.com> | 2021-02-18 18:41:37 +0000 |
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committer | Matthias Clasen <mclasen@redhat.com> | 2021-02-18 18:41:37 +0000 |
commit | 784b23696407211980a0e83de6587480ef31c065 (patch) | |
tree | cdc1d3436025f7edadcde4d94ff2e97dc6322157 | |
parent | a048da02d55c0dd1b88624a8cfd3f47edf16981e (diff) | |
parent | f8206f18b1c1c311174795cea9afdc20ba76a5bb (diff) | |
download | gtk+-784b23696407211980a0e83de6587480ef31c065.tar.gz |
Merge branch 'unintrusive-compose-preedit-3' into 'gtk-3-24'
Unintrusive compose preedit 3
See merge request GNOME/gtk!3221
-rw-r--r-- | gtk/gtkimcontextsimple.c | 94 | ||||
-rw-r--r-- | modules/input/imwayland.c | 35 |
2 files changed, 126 insertions, 3 deletions
diff --git a/gtk/gtkimcontextsimple.c b/gtk/gtkimcontextsimple.c index 627ed71c23..39a659edda 100644 --- a/gtk/gtkimcontextsimple.c +++ b/gtk/gtkimcontextsimple.c @@ -907,9 +907,99 @@ 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); + } + } } } diff --git a/modules/input/imwayland.c b/modules/input/imwayland.c index 87c4ae806f..a9bddd29bb 100644 --- a/modules/input/imwayland.c +++ b/modules/input/imwayland.c @@ -483,6 +483,39 @@ gtk_im_context_wayland_finalize (GObject *object) G_OBJECT_CLASS (parent_class)->finalize (object); } +/* 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, gchar **str, @@ -512,7 +545,7 @@ 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); |