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UTF-8 support for html form elements: text, password, select and file.

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Including double-width glyphs. Without support for textarea.
This commit is contained in:
Pavol Babincak 2006-05-06 22:03:26 +02:00 committed by Pavol Babincak
parent bbd24d7bf4
commit aedc5459ef
1 changed files with 120 additions and 75 deletions
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193
src/viewer/text/form.c
View File

@ -158,18 +158,16 @@ init_form_state(struct form_control *fc, struct form_state *fs)
mem_free_set(&fs->value, NULL);
switch (fc->type) {
#ifdef CONFIG_UTF_8
unsigned char *text;
#endif /* CONFIG_UTF_8 */
case FC_TEXT:
case FC_PASSWORD:
case FC_TEXTAREA:
fs->value = stracpy(fc->default_value);
fs->state = strlen(fc->default_value);
#ifdef CONFIG_UTF_8
text = fs->value;
fs->state_cell = strlen_utf8(&text);
if (fc->type == FC_TEXT)
fs->state_cell = utf8_ptr2cells(fs->value, NULL);
if (fc->type == FC_PASSWORD)
fs->state_cell = utf8_ptr2chars(fs->value, NULL);
#endif /* CONFIG_UTF_8 */
fs->vpos = 0;
break;
@ -350,18 +348,18 @@ draw_form_entry(struct terminal *term, struct document_view *doc_view,
case FC_TEXT:
case FC_PASSWORD:
case FC_FILE:
#ifdef CONFIG_UTF_8
if (term->utf8) goto utf_8;
#endif /* CONFIG_UTF_8 */
int_bounds(&fs->vpos, fs->state - fc->size + 1, fs->state);
if (!link->npoints) break;
y = link->points[0].y + dy;
if (!row_is_in_box(box, y))
break;
len = strlen(fs->value) - fs->vpos;
x = link->points[0].x + dx;
#ifdef CONFIG_UTF_8
if (term->utf8) goto utf_8;
#endif /* CONFIG_UTF_8 */
int_bounds(&fs->vpos, fs->state - fc->size + 1, fs->state);
len = strlen(fs->value) - fs->vpos;
for (i = 0; i < fc->size; i++, x++) {
unsigned char data;
@ -379,32 +377,37 @@ draw_form_entry(struct terminal *term, struct document_view *doc_view,
break;
#ifdef CONFIG_UTF_8
utf_8:
end = NULL; /* Shut up the compiler. */
int_bounds(&fs->vpos, fs->state_cell - fc->size + 1, fs->state_cell);
if (fc->type == FC_PASSWORD)
len = utf8_ptr2chars(fs->value + fs->vpos, NULL);
else
len = utf8_ptr2cells(fs->value + fs->vpos, NULL);
text = fs->value;
end = strchr(text, '\0');
int_bounds(&fs->vpos, fs->state_cell - fc->size + 1, fs->state_cell);
if (!link->npoints) break;
y = link->points[0].y + dy;
if (!row_is_in_box(box, y))
break;
for (i = 0; i < fs->vpos; i++) {
utf_8_to_unicode(&text, end);
}
s = text;
len = strlen_utf8(&s);
x = link->points[0].x + dx;
for (i = 0; i < fc->size; i++, x++) {
uint16_t data;
unicode_val_T data;
if (!col_is_in_box(box, x)) continue;
if (fs->value && i >= -fs->vpos && i < len)
data = fc->type != FC_PASSWORD
? utf_8_to_unicode(&text, end) : '*';
else
if (fs->value && i >= -fs->vpos && i < len) {
if (fc->type != FC_PASSWORD)
data = utf_8_to_unicode(&text, end);
else
data = '*';
} else
data = '_';
if (unicode_to_cell(data) == 2) {
if (i + 1 < fc->size) {
draw_char_data(term, x++, y, data);
data = UCS_NO_CHAR;
i++;
} else
data = ' ';
}
draw_char_data(term, x, y, data);
}
break;
@ -442,13 +445,29 @@ utf_8:
utf_8_select:
text = s;
end = strchr(s, '\0');
len = strlen_utf8(&text);
len = utf8_ptr2cells(text, end);
for (i = 0; i < link->npoints; i++) {
x = link->points[i].x + dx;
y = link->points[i].y + dy;
if (is_in_box(box, x, y))
draw_char_data(term, x, y, i < len
? utf_8_to_unicode(&s, end) : '_');
if (is_in_box(box, x, y)) {
unicode_val_T data;
if (i < len) {
int cell;
data = utf_8_to_unicode(&s, end);
cell = unicode_to_cell(data);
if (i + 1 < len && cell == 2) {
draw_char_data(term, x++, y, data);
data = UCS_NO_CHAR;
i++;
} else if (cell == 2) {
data = ' ';
}
} else
data = '_';
draw_char_data(term, x, y, data);
}
}
break;
#endif /* CONFIG_UTF_8 */
@ -1285,13 +1304,18 @@ field_op(struct session *ses, struct document_view *doc_view,
case ACT_EDIT_LEFT:
#ifdef CONFIG_UTF_8
if (utf8) {
unsigned char *text = fs->value;
unsigned char *end = fs->value + fs->state - 1;
int old = fs->state;
int old_state = fs->state;
unsigned char *new_value;
while (utf_8_to_unicode(&text, end) != UCS_NO_CHAR);
fs->state = (int)(text - fs->value);
if (old != fs->state) fs->state_cell--;
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);
else
fs->state_cell = int_max(utf8_char2cells(new_value, NULL) - 1, 0);
}
} else
#endif /* CONFIG_UTF_8 */
fs->state = int_max(fs->state - 1, 0);
@ -1301,11 +1325,17 @@ field_op(struct session *ses, struct document_view *doc_view,
if (utf8) {
unsigned char *text = fs->value + fs->state;
unsigned char *end = strchr(text, '\0');
int old = fs->state;
int old_state = fs->state;
unicode_val_T data = utf_8_to_unicode(&text, end);
utf_8_to_unicode(&text, end);
fs->state = (int)(text - fs->value);
if (old != fs->state) fs->state_cell++;
if (old_state != fs->state) {
if (fc->type == FC_PASSWORD)
fs->state_cell = int_min(fs->state_cell + 1,
utf8_ptr2cells(fs->value, NULL));
else
fs->state_cell += unicode_to_cell(data);
}
} else
#endif /* CONFIG_UTF_8 */
fs->state = int_min(fs->state + 1, strlen(fs->value));
@ -1354,11 +1384,12 @@ field_op(struct session *ses, struct document_view *doc_view,
} else {
fs->state = strlen(fs->value);
#ifdef CONFIG_UTF_8
if (utf8) {
unsigned char *text = fs->value;
fs->state_cell = strlen_utf8(&text);
}
if (utf8 && fc->type != FC_PASSWORD)
fs->state_cell = utf8_ptr2cells(fs->value,
fs->value + fs->state);
else if(utf8)
fs->state_cell = utf8_ptr2chars(fs->value,
fs->value + fs->state);
#endif /* CONFIG_UTF_8 */
}
break;
@ -1386,11 +1417,13 @@ field_op(struct session *ses, struct document_view *doc_view,
} else {
fs->state = strlen(fs->value);
#ifdef CONFIG_UTF_8
if (utf8) {
unsigned char *text = fs->value;
if (utf8 && fc->type != FC_PASSWORD)
fs->state_cell = utf8_ptr2cells(fs->value,
fs->value + fs->state);
else if(utf8)
fs->state_cell = utf8_ptr2chars(fs->value,
fs->value + fs->state);
fs->state_cell = strlen_utf8(&text);
}
#endif /* CONFIG_UTF_8 */
}
break;
@ -1428,11 +1461,12 @@ field_op(struct session *ses, struct document_view *doc_view,
memmove(v, text, length + 1);
fs->state = strlen(fs->value);
#ifdef CONFIG_UTF_8
if (utf8 && fc->type != FC_TEXTAREA) {
unsigned char *text = fs->value;
fs->state_cell = strlen_utf8(&text);
}
if(utf8 && fc->type == FC_PASSWORD)
fs->state_cell = utf8_ptr2chars(fs->value,
fs->value + fs->state);
else if (utf8)
fs->state_cell = utf8_ptr2cells(fs->value,
fs->value + fs->state);
#endif /* CONFIG_UTF_8 */
}
}
@ -1471,24 +1505,29 @@ field_op(struct session *ses, struct document_view *doc_view,
}
#ifdef CONFIG_UTF_8
if (utf8) {
int i;
unsigned char *text = fs->value;
unsigned char *end = fs->value + fs->state;
int old_state = fs->state;
unsigned char *new_value;
for (i = 0; i < fs->state_cell - 1; i++)
utf_8_to_unicode(&text, end);
length = strlen(end) + 1;
memmove(text, end, length);
fs->state = (int)(text - fs->value);
fs->state_cell--;
break;
}
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);
else
fs->state_cell -= utf8_char2cells(new_value, NULL);
length = strlen(fs->value + old_state) + 1;
memmove(new_value, fs->value + old_state, length);
}
} else
#endif /* CONFIG_UTF_8 */
length = strlen(fs->value + fs->state) + 1;
text = fs->value + fs->state;
{
length = strlen(fs->value + fs->state) + 1;
text = fs->value + fs->state;
memmove(text - 1, text, length);
fs->state--;
memmove(text - 1, text, length);
fs->state--;
}
break;
case ACT_EDIT_DELETE:
if (form_field_is_readonly(fc)) {
@ -1545,10 +1584,13 @@ field_op(struct session *ses, struct document_view *doc_view,
fs->state = (int) (text - fs->value);
#ifdef CONFIG_UTF_8
if (utf8 && fc->type != FC_TEXTAREA) {
unsigned char *text = fs->value;
fs->state_cell = strlen_utf8(&text);
if (utf8) {
if(fc->type == FC_PASSWORD)
fs->state_cell = utf8_ptr2cells(fs->value,
fs->value + fs->state);
else
fs->state_cell = utf8_ptr2cells(fs->value,
fs->value + fs->state);
}
#endif /* CONFIG_UTF_8 */
break;
@ -1630,7 +1672,10 @@ field_op(struct session *ses, struct document_view *doc_view,
return FRAME_EVENT_OK;
}
fs->state += i;
fs->state_cell++;
if (fc->type == FC_PASSWORD)
fs->state_cell++;
else
fs->state_cell += unicode_to_cell(data);
i = 0;
break;
}