Drop Ctrl-Shift-e support

Now that we have Emoji completion, drop the rather limited
Ctrl-Shift-e support in GtkIMContextSimple, and leave this
sequence to input methods.

1 files changed, 41 insertions, 252 deletions

diff --git a/gtk/gtkimcontextsimple.c b/gtk/gtkimcontextsimple.c
index ae62ac81b8..6ec29dd193 100644
--- a/gtk/gtkimcontextsimple.c
+++ b/gtk/gtkimcontextsimple.c
@@ -59,63 +59,19 @@
  * Compose file). The syntax of these files is described in the Compose(5)
  * manual page.
  *
- * ## Unicode characters
- *
  * GtkIMContextSimple also supports numeric entry of Unicode characters
  * by typing Ctrl-Shift-u, followed by a hexadecimal Unicode codepoint.
  * For example, Ctrl-Shift-u 1 2 3 Enter yields U+0123 LATIN SMALL LETTER
  * G WITH CEDILLA, i.e. ģ.
- *
- * ## Emoji
- *
- * GtkIMContextSimple also supports entry of Emoji by their name.
- * This works by first typing Ctrl-Shift-e, followed by an Emoji name.
- *
- * The following names are supported:
- * - :-) 🙂
- * - 8-) 😍
- * - <3 ❤
- * - kiss 💋
- * - grin 😁
- * - joy 😂
- * - :-* 😚
- * - xD 😆
- * - like 👍
- * - dislike 👎
- * - up 👆
- * - v ✌
- * - ok 👌
- * - B-) 😎
- * - ;-) 😉
- * - ;-P 😜
- * - :-p 😋
- * - 3( 😔
- * - :-( 😞
- * - :] 😏
- * - :'( 😢
- * - :_( 😭
- * - :(( 😩
- * - :o 😨
- * - :| 😐
- * - 3-) 😌
- * - >( 😠
- * - >(( 😡
- * - O:) 😇
- * - ;o 😰
- * - 8| 😳
- * - 8o 😲
- * - :X 😷
- * - }:) 😈
  */
 
 struct _GtkIMContextSimplePrivate
 {
-  guint16        compose_buffer[MAX(GTK_MAX_COMPOSE_LEN + 1, 9)];
+  guint16        compose_buffer[GTK_MAX_COMPOSE_LEN + 1];
   gunichar       tentative_match;
   gint           tentative_match_len;
 
   guint          in_hex_sequence : 1;
-  guint          in_emoji_sequence : 1;
   guint          modifiers_dropped : 1;
 };
 
@@ -339,10 +295,9 @@ gtk_im_context_simple_commit_char (GtkIMContext *context,
   len = g_unichar_to_utf8 (ch, buf);
   buf[len] = '\0';
 
-  if (priv->tentative_match || priv->in_hex_sequence || priv->in_emoji_sequence)
+  if (priv->tentative_match || priv->in_hex_sequence)
     {
       priv->in_hex_sequence = FALSE;
-      priv->in_emoji_sequence = FALSE;
       priv->tentative_match = 0;
       priv->tentative_match_len = 0;
       g_signal_emit_by_name (context_simple, "preedit-changed");
@@ -910,110 +865,6 @@ check_hex (GtkIMContextSimple *context_simple,
   return TRUE;
 }
 
-typedef struct {
-  const char *name;
-  gunichar ch;
-} EmojiItem;
-
-static EmojiItem emoji[] = {
-  { ":-)",     0x1f642 },
-  { "8-)",     0x1f60d },
-  { "<3",      0x02764 },
-  { "kiss",    0x1f48b },
-  { "grin",    0x1f601 },
-  { "joy",     0x1f602 },
-  { ":-*",     0x1f61a },
-  { "xD",      0x1f606 },
-  { "like",    0x1f44d },
-  { "dislike", 0x1f44e },
-  { "up",      0x1f446 },
-  { "v",       0x0270c },
-  { "ok",      0x1f44c },
-  { "B-)",     0x1f60e },
-  { ":-D",     0x1f603 },
-  { ";-)",     0x1f609 },
-  { ";-P",     0x1f61c },
-  { ":-p",     0x1f60b },
-  { "3(",      0x1f614 },
-  { ":-(",     0x1f61e },
-  { ":]",      0x1f60f },
-  { ":'(",     0x1f622 },
-  { ":_(",     0x1f62d },
-  { ":((",     0x1f629 },
-  { ":o",      0x1f628 },
-  { ":|",      0x1f610 },
-  { "3-)",     0x1f60c },
-  { ">(",      0x1f620 },
-  { ">((",     0x1f621 },
-  { "O:)",     0x1f607 },
-  { ";o",      0x1f630 },
-  { "8|",      0x1f633 },
-  { "8o",      0x1f632 },
-  { ":X",      0x1f637 },
-  { "}:)",     0x1f608 },
-  { NULL, 0 }
-};
-
-static gboolean
-check_emoji (GtkIMContextSimple *context_simple,
-             gint                n_compose)
-{
-  GtkIMContextSimplePrivate *priv = context_simple->priv;
-  GString *str;
-  gint i;
-  gchar buf[7];
-  char *lower;
-  gboolean has_completion;
-
-  priv->tentative_match = 0;
-  priv->tentative_match_len = 0;
-
-  str = g_string_new (NULL);
-
-  i = 0;
-  while (i < n_compose)
-    {
-      gunichar ch;
-
-      ch = gdk_keyval_to_unicode (priv->compose_buffer[i]);
-
-      if (ch == 0)
-        return FALSE;
-
-      buf[g_unichar_to_utf8 (ch, buf)] = '\0';
-
-      g_string_append (str, buf);
-
-      ++i;
-    }
-
-  lower = g_utf8_strdown (str->str, str->len);
-
-  has_completion = FALSE;
-  for (i = 0; emoji[i].name; i++)
-    {
-      if (strcmp (str->str, emoji[i].name) == 0 ||
-          strcmp (lower, emoji[i].name) == 0)
-        {
-          priv->tentative_match = emoji[i].ch;
-          priv->tentative_match_len = n_compose;
-          break;
-        }
-
-      if (!has_completion &&
-          (g_str_has_prefix (emoji[i].name, str->str) ||
-           g_str_has_prefix (emoji[i].name, lower)))
-        {
-          has_completion = TRUE;
-        }
-    }
-
-  g_string_free (str, TRUE);
-  g_free (lower);
-
-  return priv->tentative_match != 0 || has_completion;
-}
-
 static void
 beep_window (GdkWindow *window)
 {
@@ -1133,12 +984,6 @@ canonical_hex_keyval (GdkEventKey *event)
     return 0;
 }
 
-static guint
-canonical_emoji_keyval (GdkEventKey *event)
-{
-  return event->keyval;
-}
-
 static gboolean
 gtk_im_context_simple_filter_keypress (GtkIMContext *context,
 				       GdkEventKey  *event)
@@ -1146,17 +991,15 @@ gtk_im_context_simple_filter_keypress (GtkIMContext *context,
   GtkIMContextSimple *context_simple = GTK_IM_CONTEXT_SIMPLE (context);
   GtkIMContextSimplePrivate *priv = context_simple->priv;
   GdkDisplay *display = gdk_window_get_display (event->window);
-  GSList *tmp_list;
+  GSList *tmp_list;  
   int n_compose = 0;
   GdkModifierType hex_mod_mask;
   gboolean have_hex_mods;
   gboolean is_hex_start;
-  gboolean is_end;
-  gboolean is_emoji_start;
+  gboolean is_hex_end;
   gboolean is_backspace;
   gboolean is_escape;
   guint hex_keyval;
-  guint emoji_keyval;
   int i;
   gboolean compose_finish;
   gboolean compose_match;
@@ -1167,43 +1010,38 @@ gtk_im_context_simple_filter_keypress (GtkIMContext *context,
 
   if (event->type == GDK_KEY_RELEASE)
     {
-      if ((event->keyval == GDK_KEY_Control_L || event->keyval == GDK_KEY_Control_R ||
+      if (priv->in_hex_sequence &&
+	  (event->keyval == GDK_KEY_Control_L || event->keyval == GDK_KEY_Control_R ||
 	   event->keyval == GDK_KEY_Shift_L || event->keyval == GDK_KEY_Shift_R))
 	{
-          if ((priv->in_hex_sequence || priv->in_emoji_sequence) &&
-	      priv->tentative_match &&
+	  if (priv->tentative_match &&
 	      g_unichar_validate (priv->tentative_match))
 	    {
 	      gtk_im_context_simple_commit_char (context, priv->tentative_match);
 	      priv->compose_buffer[0] = 0;
 
-	      return TRUE;
 	    }
-	  else if (priv->in_emoji_sequence ||
-                   (priv->in_hex_sequence && n_compose == 0))
+	  else if (n_compose == 0)
 	    {
 	      priv->modifiers_dropped = TRUE;
-
-	      return TRUE;
 	    }
-	  else if (priv->in_hex_sequence)
+	  else
 	    {
 	      /* invalid hex sequence */
 	      beep_window (event->window);
-
+	      
 	      priv->tentative_match = 0;
 	      priv->in_hex_sequence = FALSE;
-	      priv->in_emoji_sequence = FALSE;
 	      priv->compose_buffer[0] = 0;
-
+	      
 	      g_signal_emit_by_name (context_simple, "preedit-changed");
 	      g_signal_emit_by_name (context_simple, "preedit-end");
-
-	      return TRUE;
 	    }
-	}
 
-      return FALSE;
+	  return TRUE;
+	}
+      else
+	return FALSE;
     }
 
   /* Ignore modifier key presses */
@@ -1215,21 +1053,19 @@ gtk_im_context_simple_filter_keypress (GtkIMContext *context,
                                                GDK_MODIFIER_INTENT_PRIMARY_ACCELERATOR);
   hex_mod_mask |= GDK_SHIFT_MASK;
 
-  if ((priv->in_hex_sequence || priv->in_emoji_sequence) && priv->modifiers_dropped)
+  if (priv->in_hex_sequence && priv->modifiers_dropped)
     have_hex_mods = TRUE;
   else
     have_hex_mods = (event->state & (hex_mod_mask)) == hex_mod_mask;
   is_hex_start = event->keyval == GDK_KEY_U;
-  is_emoji_start = (event->keyval == GDK_KEY_E) && !priv->in_hex_sequence;
-  is_end = (event->keyval == GDK_KEY_space ||
-            event->keyval == GDK_KEY_KP_Space ||
-            event->keyval == GDK_KEY_Return ||
-	    event->keyval == GDK_KEY_ISO_Enter ||
-	    event->keyval == GDK_KEY_KP_Enter);
+  is_hex_end = (event->keyval == GDK_KEY_space ||
+		event->keyval == GDK_KEY_KP_Space ||
+		event->keyval == GDK_KEY_Return ||
+		event->keyval == GDK_KEY_ISO_Enter ||
+		event->keyval == GDK_KEY_KP_Enter);
   is_backspace = event->keyval == GDK_KEY_BackSpace;
   is_escape = event->keyval == GDK_KEY_Escape;
   hex_keyval = canonical_hex_keyval (event);
-  emoji_keyval = canonical_emoji_keyval (event);
 
   /* If we are already in a non-hex sequence, or
    * this keystroke is not hex modifiers + hex digit, don't filter
@@ -1239,11 +1075,10 @@ gtk_im_context_simple_filter_keypress (GtkIMContext *context,
    * ISO_Level3_Switch.
    */
   if (!have_hex_mods ||
-      (n_compose > 0 && !priv->in_hex_sequence && !priv->in_emoji_sequence) ||
-      (n_compose == 0 && !priv->in_hex_sequence && !priv->in_emoji_sequence &&
-       !is_hex_start && !is_emoji_start) ||
+      (n_compose > 0 && !priv->in_hex_sequence) ||
+      (n_compose == 0 && !priv->in_hex_sequence && !is_hex_start) ||
       (priv->in_hex_sequence && !hex_keyval &&
-       !is_hex_start && !is_end && !is_escape && !is_backspace))
+       !is_hex_start && !is_hex_end && !is_escape && !is_backspace))
     {
       GdkModifierType no_text_input_mask;
 
@@ -1252,7 +1087,7 @@ gtk_im_context_simple_filter_keypress (GtkIMContext *context,
                                       GDK_MODIFIER_INTENT_NO_TEXT_INPUT);
 
       if (event->state & no_text_input_mask ||
-	  ((priv->in_hex_sequence || priv->in_emoji_sequence) && priv->modifiers_dropped &&
+	  (priv->in_hex_sequence && priv->modifiers_dropped &&
 	   (event->keyval == GDK_KEY_Return ||
 	    event->keyval == GDK_KEY_ISO_Enter ||
 	    event->keyval == GDK_KEY_KP_Enter)))
@@ -1262,21 +1097,17 @@ gtk_im_context_simple_filter_keypress (GtkIMContext *context,
     }
   
   /* Handle backspace */
-  if ((priv->in_hex_sequence || priv->in_emoji_sequence) && have_hex_mods && is_backspace)
+  if (priv->in_hex_sequence && have_hex_mods && is_backspace)
     {
       if (n_compose > 0)
 	{
 	  n_compose--;
 	  priv->compose_buffer[n_compose] = 0;
-          if (priv->in_hex_sequence)
-            check_hex (context_simple, n_compose);
-          else if (priv->in_emoji_sequence)
-            check_emoji (context_simple, n_compose);
+          check_hex (context_simple, n_compose);
 	}
       else
 	{
 	  priv->in_hex_sequence = FALSE;
-	  priv->in_emoji_sequence = FALSE;
 	}
 
       g_signal_emit_by_name (context_simple, "preedit-changed");
@@ -1296,7 +1127,7 @@ gtk_im_context_simple_filter_keypress (GtkIMContext *context,
 	  gtk_im_context_simple_commit_char (context, priv->tentative_match);
 	  priv->compose_buffer[0] = 0;
 	}
-      else
+      else 
 	{
 	  /* invalid hex sequence */
 	  if (n_compose > 0)
@@ -1322,20 +1153,6 @@ gtk_im_context_simple_filter_keypress (GtkIMContext *context,
       return TRUE;
     }
   
-  /* Check for emoji sequence start */
-  if (!priv->in_emoji_sequence && have_hex_mods && is_emoji_start)
-    {
-      priv->compose_buffer[0] = 0;
-      priv->in_emoji_sequence = TRUE;
-      priv->modifiers_dropped = FALSE;
-      priv->tentative_match = 0;
-
-      g_signal_emit_by_name (context_simple, "preedit-start");
-      g_signal_emit_by_name (context_simple, "preedit-changed");
-  
-      return TRUE;
-    }
-  
   /* Then, check for compose sequences */
   if (priv->in_hex_sequence)
     {
@@ -1344,54 +1161,29 @@ gtk_im_context_simple_filter_keypress (GtkIMContext *context,
       else if (is_escape)
 	{
 	  gtk_im_context_simple_reset (context);
+	  
 	  return TRUE;
 	}
-      else if (!is_end)
+      else if (!is_hex_end)
 	{
 	  /* non-hex character in hex sequence */
 	  beep_window (event->window);
+	  
 	  return TRUE;
 	}
     }
-  else if (priv->in_emoji_sequence)
-    {
-      if (emoji_keyval)
-        priv->compose_buffer[n_compose++] = emoji_keyval;
-      else if (is_escape)
-        {
-	  gtk_im_context_simple_reset (context);
-	  return TRUE;
-        }
-      else
-        {
-	  beep_window (event->window);
-	  return TRUE;
-        }
-    }
   else
     priv->compose_buffer[n_compose++] = event->keyval;
 
-  if (n_compose == MAX(GTK_MAX_COMPOSE_LEN + 1, 9))
-    {
-      beep_window (event->window);
-      priv->tentative_match = 0;
-      priv->in_hex_sequence = FALSE;
-      priv->in_emoji_sequence = FALSE;
-      priv->compose_buffer[0] = 0;
-      g_signal_emit_by_name (context_simple, "preedit-changed");
-
-      return TRUE;
-    }
-
   priv->compose_buffer[n_compose] = 0;
 
-  if (priv->in_hex_sequence || priv->in_emoji_sequence)
+  if (priv->in_hex_sequence)
     {
       /* If the modifiers are still held down, consider the sequence again */
       if (have_hex_mods)
         {
           /* space or return ends the sequence, and we eat the key */
-          if (n_compose > 0 && is_end)
+          if (n_compose > 0 && is_hex_end)
             {
 	      if (priv->tentative_match &&
 		  g_unichar_validate (priv->tentative_match))
@@ -1406,17 +1198,15 @@ gtk_im_context_simple_filter_keypress (GtkIMContext *context,
 
 		  priv->tentative_match = 0;
 		  priv->in_hex_sequence = FALSE;
-		  priv->in_emoji_sequence = FALSE;
 		  priv->compose_buffer[0] = 0;
 		}
             }
-          else if ((priv->in_hex_sequence && !check_hex (context_simple, n_compose)) ||
-                   (priv->in_emoji_sequence && !check_emoji (context_simple, n_compose)))
+          else if (!check_hex (context_simple, n_compose))
 	    beep_window (event->window);
-
+	  
 	  g_signal_emit_by_name (context_simple, "preedit-changed");
 
-	  if (!priv->in_hex_sequence && !priv->in_emoji_sequence)
+	  if (!priv->in_hex_sequence)
 	    g_signal_emit_by_name (context_simple, "preedit-end");
 
 	  return TRUE;
@@ -1540,10 +1330,9 @@ gtk_im_context_simple_reset (GtkIMContext *context)
 
   priv->compose_buffer[0] = 0;
 
-  if (priv->tentative_match || priv->in_hex_sequence || priv->in_emoji_sequence)
+  if (priv->tentative_match || priv->in_hex_sequence)
     {
       priv->in_hex_sequence = FALSE;
-      priv->in_emoji_sequence = FALSE;
       priv->tentative_match = 0;
       priv->tentative_match_len = 0;
       g_signal_emit_by_name (context_simple, "preedit-changed");
@@ -1562,11 +1351,11 @@ gtk_im_context_simple_get_preedit_string (GtkIMContext   *context,
   char outbuf[37]; /* up to 6 hex digits */
   int len = 0;
 
-  if (priv->in_hex_sequence || priv->in_emoji_sequence)
+  if (priv->in_hex_sequence)
     {
       int hexchars = 0;
          
-      outbuf[0] = priv->in_hex_sequence ? 'u' : 'e';
+      outbuf[0] = 'u';
       len = 1;
 
       while (priv->compose_buffer[hexchars] != 0)
@@ -1580,8 +1369,8 @@ gtk_im_context_simple_get_preedit_string (GtkIMContext   *context,
     }
   else if (priv->tentative_match)
     len = g_unichar_to_utf8 (priv->tentative_match, outbuf);
-
-  outbuf[len] = '\0';
+      
+  outbuf[len] = '\0';      
 
   if (str)
     *str = g_strdup (outbuf);