/** Routine called when text events occour in writeable widget.
*
* @param widget The widget reciving input events.
* @param cbi The callback parameters.
* @return The callback result.
*/
static int
text_input(fbtk_widget_t *widget, fbtk_callback_info *cbi)
{
int value;
static uint8_t modifier = 0;
char *temp;
if (cbi->event == NULL) {
/* gain focus */
if (widget->u.text.text == NULL)
widget->u.text.text = calloc(1,1);
widget->u.text.idx = strlen(widget->u.text.text);
fbtk_request_redraw(widget);
return 0;
}
value = cbi->event->value.keycode;
if (cbi->event->type != NSFB_EVENT_KEY_DOWN) {
switch (value) {
case NSFB_KEY_RSHIFT:
modifier &= ~1;
break;
case NSFB_KEY_LSHIFT:
modifier &= ~(1<<1);
break;
default:
break;
}
return 0;
}
switch (value) {
case NSFB_KEY_BACKSPACE:
if (widget->u.text.idx <= 0)
break;
widget->u.text.idx--;
widget->u.text.text[widget->u.text.idx] = 0;
break;
case NSFB_KEY_RETURN:
widget->u.text.enter(widget->u.text.pw, widget->u.text.text);
break;
case NSFB_KEY_PAGEUP:
case NSFB_KEY_PAGEDOWN:
case NSFB_KEY_RIGHT:
case NSFB_KEY_LEFT:
case NSFB_KEY_UP:
case NSFB_KEY_DOWN:
/* Not handling any of these correctly yet, but avoid putting
* charcters in the text widget when they're pressed. */
break;
case NSFB_KEY_RSHIFT:
modifier |= 1;
break;
case NSFB_KEY_LSHIFT:
modifier |= 1<<1;
break;
default:
/* allow for new character and null */
temp = realloc(widget->u.text.text, widget->u.text.idx + 2);
if (temp != NULL) {
widget->u.text.text = temp;
widget->u.text.text[widget->u.text.idx] = fbtk_keycode_to_ucs4(value, modifier);
widget->u.text.text[widget->u.text.idx + 1] = '\0';
widget->u.text.idx++;
}
break;
}
fbtk_request_redraw(widget);
return 0;
}
static int
fb_browser_window_input(fbtk_widget_t *widget, fbtk_callback_info *cbi)
{
struct gui_window *gw = cbi->context;
static fbtk_modifier_type modifier = FBTK_MOD_CLEAR;
int ucs4 = -1;
LOG(("got value %d", cbi->event->value.keycode));
switch (cbi->event->type) {
case NSFB_EVENT_KEY_DOWN:
switch (cbi->event->value.keycode) {
case NSFB_KEY_DELETE:
browser_window_key_press(gw->bw, KEY_DELETE_RIGHT);
break;
case NSFB_KEY_PAGEUP:
if (browser_window_key_press(gw->bw,
KEY_PAGE_UP) == false)
widget_scroll_y(gw, -fbtk_get_height(
gw->browser), false);
break;
case NSFB_KEY_PAGEDOWN:
if (browser_window_key_press(gw->bw,
KEY_PAGE_DOWN) == false)
widget_scroll_y(gw, fbtk_get_height(
gw->browser), false);
break;
case NSFB_KEY_RIGHT:
if (modifier & FBTK_MOD_RCTRL ||
modifier & FBTK_MOD_LCTRL) {
/* CTRL held */
if (browser_window_key_press(gw->bw,
KEY_LINE_END) == false)
widget_scroll_x(gw, INT_MAX, true);
} else if (modifier & FBTK_MOD_RSHIFT ||
modifier & FBTK_MOD_LSHIFT) {
/* SHIFT held */
if (browser_window_key_press(gw->bw,
KEY_WORD_RIGHT) == false)
widget_scroll_x(gw, fbtk_get_width(
gw->browser), false);
} else {
/* no modifier */
if (browser_window_key_press(gw->bw,
KEY_RIGHT) == false)
widget_scroll_x(gw, 100, false);
}
break;
case NSFB_KEY_LEFT:
if (modifier & FBTK_MOD_RCTRL ||
modifier & FBTK_MOD_LCTRL) {
/* CTRL held */
if (browser_window_key_press(gw->bw,
KEY_LINE_START) == false)
widget_scroll_x(gw, 0, true);
} else if (modifier & FBTK_MOD_RSHIFT ||
modifier & FBTK_MOD_LSHIFT) {
/* SHIFT held */
if (browser_window_key_press(gw->bw,
KEY_WORD_LEFT) == false)
widget_scroll_x(gw, -fbtk_get_width(
gw->browser), false);
} else {
/* no modifier */
if (browser_window_key_press(gw->bw,
KEY_LEFT) == false)
widget_scroll_x(gw, -100, false);
}
break;
case NSFB_KEY_UP:
if (browser_window_key_press(gw->bw,
KEY_UP) == false)
widget_scroll_y(gw, -100, false);
break;
case NSFB_KEY_DOWN:
if (browser_window_key_press(gw->bw,
KEY_DOWN) == false)
widget_scroll_y(gw, 100, false);
break;
case NSFB_KEY_RSHIFT:
modifier |= FBTK_MOD_RSHIFT;
break;
case NSFB_KEY_LSHIFT:
modifier |= FBTK_MOD_LSHIFT;
break;
case NSFB_KEY_RCTRL:
modifier |= FBTK_MOD_RCTRL;
break;
case NSFB_KEY_LCTRL:
modifier |= FBTK_MOD_LCTRL;
break;
case NSFB_KEY_y:
case NSFB_KEY_z:
if (cbi->event->value.keycode == NSFB_KEY_z &&
(modifier & FBTK_MOD_RCTRL ||
modifier & FBTK_MOD_LCTRL) &&
(modifier & FBTK_MOD_RSHIFT ||
modifier & FBTK_MOD_LSHIFT)) {
/* Z pressed with CTRL and SHIFT held */
browser_window_key_press(gw->bw, KEY_REDO);
break;
} else if (cbi->event->value.keycode == NSFB_KEY_z &&
(modifier & FBTK_MOD_RCTRL ||
modifier & FBTK_MOD_LCTRL)) {
/* Z pressed with CTRL held */
browser_window_key_press(gw->bw, KEY_UNDO);
break;
} else if (cbi->event->value.keycode == NSFB_KEY_y &&
(modifier & FBTK_MOD_RCTRL ||
modifier & FBTK_MOD_LCTRL)) {
/* Y pressed with CTRL held */
browser_window_key_press(gw->bw, KEY_REDO);
break;
}
/* Z or Y pressed but not undo or redo;
* Fall through to default handling */
default:
ucs4 = fbtk_keycode_to_ucs4(cbi->event->value.keycode,
modifier);
if (ucs4 != -1)
browser_window_key_press(gw->bw, ucs4);
break;
}
break;
case NSFB_EVENT_KEY_UP:
switch (cbi->event->value.keycode) {
case NSFB_KEY_RSHIFT:
modifier &= ~FBTK_MOD_RSHIFT;
break;
case NSFB_KEY_LSHIFT:
modifier &= ~FBTK_MOD_LSHIFT;
break;
case NSFB_KEY_RCTRL:
modifier &= ~FBTK_MOD_RCTRL;
break;
case NSFB_KEY_LCTRL:
modifier &= ~FBTK_MOD_LCTRL;
break;
default:
break;
}
break;
default:
break;
}
return 0;
}
/** Routine called when text events occour in writeable widget.
*
* @param widget The widget reciving input events.
* @param cbi The callback parameters.
* @return The callback result.
*/
static int
text_input(fbtk_widget_t *widget, fbtk_callback_info *cbi)
{
int value;
static fbtk_modifier_type modifier = FBTK_MOD_CLEAR;
char *temp;
plot_font_style_t font_style;
int fh;
int border;
bool caret_moved = false;
fb_text_font_style(widget, &fh, &border, &font_style);
if (cbi->event == NULL) {
/* gain focus */
if (widget->u.text.text == NULL)
widget->u.text.text = calloc(1,1);
return 0;
}
value = cbi->event->value.keycode;
if (cbi->event->type != NSFB_EVENT_KEY_DOWN) {
switch (value) {
case NSFB_KEY_RSHIFT:
modifier &= ~FBTK_MOD_RSHIFT;
break;
case NSFB_KEY_LSHIFT:
modifier &= ~FBTK_MOD_LSHIFT;
break;
case NSFB_KEY_RCTRL:
modifier &= ~FBTK_MOD_RCTRL;
break;
case NSFB_KEY_LCTRL:
modifier &= ~FBTK_MOD_LCTRL;
break;
default:
break;
}
return 0;
}
switch (value) {
case NSFB_KEY_BACKSPACE:
if (widget->u.text.idx <= 0)
break;
memmove(widget->u.text.text + widget->u.text.idx - 1,
widget->u.text.text + widget->u.text.idx,
widget->u.text.len - widget->u.text.idx);
widget->u.text.idx--;
widget->u.text.len--;
widget->u.text.text[widget->u.text.len] = 0;
nsfont.font_width(&font_style, widget->u.text.text,
widget->u.text.len, &widget->u.text.width);
caret_moved = true;
break;
case NSFB_KEY_RETURN:
widget->u.text.enter(widget->u.text.pw, widget->u.text.text);
break;
case NSFB_KEY_RIGHT:
if (widget->u.text.idx < widget->u.text.len) {
if (modifier == FBTK_MOD_CLEAR)
widget->u.text.idx++;
else
widget->u.text.idx = widget->u.text.len;
caret_moved = true;
}
break;
case NSFB_KEY_LEFT:
if (widget->u.text.idx > 0) {
if (modifier == FBTK_MOD_CLEAR)
widget->u.text.idx--;
else
widget->u.text.idx = 0;
caret_moved = true;
}
break;
case NSFB_KEY_PAGEUP:
case NSFB_KEY_PAGEDOWN:
case NSFB_KEY_UP:
case NSFB_KEY_DOWN:
/* Not handling any of these correctly yet, but avoid putting
* charcters in the text widget when they're pressed. */
break;
case NSFB_KEY_RSHIFT:
modifier |= FBTK_MOD_RSHIFT;
break;
case NSFB_KEY_LSHIFT:
modifier |= FBTK_MOD_LSHIFT;
break;
case NSFB_KEY_RCTRL:
modifier |= FBTK_MOD_RCTRL;
break;
case NSFB_KEY_LCTRL:
modifier |= FBTK_MOD_LCTRL;
break;
default:
if (modifier & FBTK_MOD_LCTRL || modifier & FBTK_MOD_RCTRL) {
/* CTRL pressed, don't enter any text */
if (value == NSFB_KEY_u) {
/* CTRL+U: clear writable */
widget->u.text.idx = 0;
widget->u.text.len = 0;
widget->u.text.text[widget->u.text.len] = '\0';
widget->u.text.width = 0;
caret_moved = true;
}
break;
}
/* allow for new character and null */
temp = realloc(widget->u.text.text, widget->u.text.len + 2);
if (temp == NULL) {
break;
}
widget->u.text.text = temp;
memmove(widget->u.text.text + widget->u.text.idx + 1,
widget->u.text.text + widget->u.text.idx,
widget->u.text.len - widget->u.text.idx);
widget->u.text.text[widget->u.text.idx] =
fbtk_keycode_to_ucs4(value, modifier);
widget->u.text.idx++;
widget->u.text.len++;
widget->u.text.text[widget->u.text.len] = '\0';
nsfont.font_width(&font_style, widget->u.text.text,
widget->u.text.len, &widget->u.text.width);
caret_moved = true;
break;
}
if (caret_moved) {
nsfont.font_width(&font_style, widget->u.text.text,
widget->u.text.idx, &widget->u.text.idx_offset);
fbtk_set_caret(widget, true,
widget->u.text.idx_offset + border,
border,
widget->height - border - border,
fb_text_input_remove_caret_cb);
}
fbtk_request_redraw(widget);
return 0;
}
