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Detect when Tab would generate no new completions

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Signed-off-by: Federico Mena Quintero <federico@gnu.org>

svn path=/trunk/; revision=19850
This commit is contained in:
Federico Mena Quintero 2008-03-13 00:45:41 +00:00 committed by Federico Mena Quintero
parent 801553bee6
commit d5df63cc1c
1 changed files with 50 additions and 27 deletions
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77
gtk/gtkfilechooserentry.c
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@ -456,6 +456,7 @@ find_common_prefix (GtkFileChooserEntry *chooser_entry,
gchar **common_prefix_ret,
GtkFilePath **unique_path_ret,
gboolean *is_complete_not_unique_ret,
gboolean *prefix_expands_the_file_part_ret,
GError **error)
{
GtkEditable *editable;
@ -469,6 +470,7 @@ find_common_prefix (GtkFileChooserEntry *chooser_entry,
*common_prefix_ret = NULL;
*unique_path_ret = NULL;
*is_complete_not_unique_ret = FALSE;
*prefix_expands_the_file_part_ret = FALSE;
editable = GTK_EDITABLE (chooser_entry);
@ -569,6 +571,10 @@ find_common_prefix (GtkFileChooserEntry *chooser_entry,
g_free (display_name);
valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (chooser_entry->completion_store), &iter);
}
/* Finally: Did we generate a new completion, or was the user's input already completed as far as it could go? */
*prefix_expands_the_file_part_ret = g_utf8_strlen (*common_prefix_ret, -1) > g_utf8_strlen (parsed_file_part, -1);
}
g_free (parsed_file_part);
@ -577,11 +583,12 @@ find_common_prefix (GtkFileChooserEntry *chooser_entry,
}
typedef enum {
INVALID_INPUT,
NO_MATCH,
COMPLETED,
COMPLETED_UNIQUE,
COMPLETE_BUT_NOT_UNIQUE
INVALID_INPUT, /* what the user typed is bogus */
NO_MATCH, /* no matches based on what the user typed */
NOTHING_INSERTED_COMPLETE, /* what the user typed is already completed as far as it will go */
COMPLETED, /* completion inserted (ambiguous suffix) */
COMPLETED_UNIQUE, /* completion inserted, and it is a complete name and a unique match */
COMPLETE_BUT_NOT_UNIQUE /* completion inserted, it is a complete name but not unique */
} CommonPrefixResult;
/* Finds a common prefix based on the contents of the entry and mandatorily appends it */
@ -593,6 +600,7 @@ append_common_prefix (GtkFileChooserEntry *chooser_entry,
gchar *common_prefix;
GtkFilePath *unique_path;
gboolean is_complete_not_unique;
gboolean prefix_expands_the_file_part;
GError *error;
CommonPrefixResult result;
gboolean have_result;
@ -603,7 +611,7 @@ append_common_prefix (GtkFileChooserEntry *chooser_entry,
return NO_MATCH;
error = NULL;
if (!find_common_prefix (chooser_entry, &common_prefix, &unique_path, &is_complete_not_unique, &error))
if (!find_common_prefix (chooser_entry, &common_prefix, &unique_path, &is_complete_not_unique, &prefix_expands_the_file_part, &error))
{
if (show_errors)
{
@ -656,30 +664,38 @@ append_common_prefix (GtkFileChooserEntry *chooser_entry,
pos = chooser_entry->file_part_pos;
chooser_entry->in_change = TRUE;
tmp = gtk_editable_get_chars (GTK_EDITABLE (chooser_entry), pos, cursor_pos);
printf ("Deleting range (%d, %d): \"%s\"\n", pos, cursor_pos, tmp);
g_free (tmp);
gtk_editable_delete_text (GTK_EDITABLE (chooser_entry),
pos, cursor_pos);
printf ("Inserting common prefix at %d: \"%s\"\n", pos, common_prefix);
gtk_editable_insert_text (GTK_EDITABLE (chooser_entry),
common_prefix, -1,
&pos);
chooser_entry->in_change = FALSE;
if (highlight)
if (prefix_expands_the_file_part)
{
printf ("Selecting range (%d, %d)\n", cursor_pos, pos);
gtk_editable_select_region (GTK_EDITABLE (chooser_entry),
cursor_pos,
pos); /* cursor_pos + common_prefix_len); */
chooser_entry->has_completion = TRUE;
chooser_entry->in_change = TRUE;
tmp = gtk_editable_get_chars (GTK_EDITABLE (chooser_entry), pos, cursor_pos);
printf ("Deleting range (%d, %d): \"%s\"\n", pos, cursor_pos, tmp);
g_free (tmp);
gtk_editable_delete_text (GTK_EDITABLE (chooser_entry),
pos, cursor_pos);
printf ("Inserting common prefix at %d: \"%s\"\n", pos, common_prefix);
gtk_editable_insert_text (GTK_EDITABLE (chooser_entry),
common_prefix, -1,
&pos);
chooser_entry->in_change = FALSE;
if (highlight)
{
printf ("Selecting range (%d, %d)\n", cursor_pos, pos);
gtk_editable_select_region (GTK_EDITABLE (chooser_entry),
cursor_pos,
pos); /* cursor_pos + common_prefix_len); */
chooser_entry->has_completion = TRUE;
}
else
gtk_editable_set_position (GTK_EDITABLE (chooser_entry), pos);
}
else
gtk_editable_set_position (GTK_EDITABLE (chooser_entry), pos);
{
result = NOTHING_INSERTED_COMPLETE;
have_result = TRUE;
}
g_free (common_prefix);
@ -972,11 +988,18 @@ explicitly_complete (GtkFileChooserEntry *chooser_entry)
pop_up_completion_feedback (chooser_entry, _("No match"));
break;
case NOTHING_INSERTED_COMPLETE:
printf ("nothing inserted\n");
/* FIXME: pop up the suggestion window or scroll it */
break;
case COMPLETED:
printf ("completed\n");
/* Nothing to do */
break;
case COMPLETED_UNIQUE:
printf ("completed a unique match\n");
/* FIXME: if the user keeps hitting Tab after completing a unique match, present feedback with "Sole completion") */
/* Nothing to do */
break;