[gtk/im-context-work] imcontext: Use gtk_compose_table_check

[Matthias Clasen <matthiasc src gnome org>]

commit aa9054a5f1ca0aedaf1df0c55d1b2f64643679b1
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Feb 1 19:41:07 2021 -0500

    imcontext: Use gtk_compose_table_check
    
    Use the just-introduced api.

 gtk/gtkimcontextsimple.c | 83 ++++++++++++++----------------------------------
 1 file changed, 24 insertions(+), 59 deletions(-)
---
diff --git a/gtk/gtkimcontextsimple.c b/gtk/gtkimcontextsimple.c
index bbd815e8ae..9dd0d52b2c 100644
--- a/gtk/gtkimcontextsimple.c
+++ b/gtk/gtkimcontextsimple.c
@@ -363,69 +363,34 @@ compare_seq (const void *key, const void *value)
 
 static gboolean
 check_table (GtkIMContextSimple    *context_simple,
-            const GtkComposeTable *table,
-            int                    n_compose)
+             const GtkComposeTable *table,
+             int                    n_compose)
 {
   GtkIMContextSimplePrivate *priv = context_simple->priv;
-  int row_stride = table->max_seq_len + 2; 
-  guint16 *seq; 
-  
-  /* Will never match, if the sequence in the compose buffer is longer
-   * than the sequences in the table.  Further, compare_seq (key, val)
-   * will overrun val if key is longer than val. */
-  if (n_compose > table->max_seq_len)
-    return FALSE;
-  
-  seq = bsearch (priv->compose_buffer,
-                table->data, table->n_seqs,
-                sizeof (guint16) *  row_stride, 
-                compare_seq);
+  gboolean compose_finish;
+  gboolean compose_match;
+  gunichar output_value;
 
-  if (seq)
+  if (gtk_compose_table_check (table,
+                               priv->compose_buffer, n_compose,
+                               &compose_finish,
+                               &compose_match,
+                               &output_value))
     {
-      guint16 *prev_seq;
-
-      /* Back up to the first sequence that matches to make sure
-       * we find the exact match if there is one.
-       */
-      while (seq > table->data)
-       {
-         prev_seq = seq - row_stride;
-         if (compare_seq (priv->compose_buffer, prev_seq) != 0)
-           break;
-         seq = prev_seq;
-       }
-      
-      if (n_compose == table->max_seq_len ||
-         seq[n_compose] == 0) /* complete sequence */
-       {
-         guint16 *next_seq;
-         gunichar value = 
-           0x10000 * seq[table->max_seq_len] + seq[table->max_seq_len + 1];
-
-         /* We found a tentative match. See if there are any longer
-          * sequences containing this subsequence
-          */
-         next_seq = seq + row_stride;
-         if (next_seq < table->data + row_stride * table->n_seqs)
-           {
-             if (compare_seq (priv->compose_buffer, next_seq) == 0)
-               {
-                 priv->tentative_match = value;
-                 priv->tentative_match_len = n_compose;
-
-                 g_signal_emit_by_name (context_simple, "preedit-changed");
-
-                 return TRUE;
-               }
-           }
-
-         gtk_im_context_simple_commit_char (GTK_IM_CONTEXT (context_simple), value);
-
-          return TRUE;
-       }
-      
-      g_signal_emit_by_name (context_simple, "preedit-changed");
+      if (compose_finish)
+        {
+          if (compose_match)
+            gtk_im_context_simple_commit_char (context_simple, output_value);
+        }
+      else
+        {
+          if (compose_match)
+            {
+              priv->tentative_match = output_value;
+              priv->tentative_match_len = n_compose;
+            }
+          g_signal_emit_by_name (context_simple, "preedit-changed");
+        }
 
       return TRUE;
     }