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viewer UTF-8: Correctly position cursor for ACT_EDIT_LEFT in text input field.

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To reproduce the bug before this patch:
Enable CONFIG_UTF_8, UTF-8 I/O, and UTF-8 charset.
Go to www.google.com and type "abc" in the text input field.
Then press Left.  The cursor jumps to "a" when it should go to "c".
This commit is contained in:
Kalle Olavi Niemitalo 2006-07-31 21:46:36 +02:00 committed by Witold Filipczyk
parent 5fd284d6a2
commit 7dcc6c9a19
1 changed files with 4 additions and 2 deletions
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6
src/viewer/text/form.c
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@ -1312,15 +1312,17 @@ field_op(struct session *ses, struct document_view *doc_view,
if (utf8) {
int old_state = fs->state;
unsigned char *new_value;
int cells;
new_value = utf8_prevchar(fs->value + fs->state, 1, fs->value);
fs->state = new_value - fs->value;
if (old_state != fs->state) {
if (fc->type == FC_PASSWORD)
fs->state_cell = int_max(fs->state_cell - 1, 0);
cells = 1;
else
fs->state_cell = int_max(utf8_char2cells(new_value, NULL) - 1, 0);
cells = utf8_char2cells(new_value, NULL);
fs->state_cell = int_max(fs->state_cell - cells, 0);
}
} else
#endif /* CONFIG_UTF_8 */