/**
* Callback for html form textareas.
*/
static void box_textarea_callback(void *data, struct textarea_msg *msg)
{
struct form_textarea_data *d = data;
struct form_control *gadget = d->gadget;
struct html_content *html = d->gadget->html;
struct box *box = gadget->box;
switch (msg->type) {
case TEXTAREA_MSG_DRAG_REPORT:
if (msg->data.drag == TEXTAREA_DRAG_NONE) {
/* Textarea drag finished */
html_drag_type drag_type = HTML_DRAG_NONE;
union html_drag_owner drag_owner;
drag_owner.no_owner = true;
html_set_drag_type(html, drag_type, drag_owner,
NULL);
} else {
/* Textarea drag started */
struct rect rect = {
.x0 = INT_MIN,
.y0 = INT_MIN,
.x1 = INT_MAX,
.y1 = INT_MAX
};
union html_drag_owner drag_owner;
drag_owner.textarea = box;
switch (msg->data.drag) {
case TEXTAREA_DRAG_SCROLLBAR:
html_set_drag_type(html,
HTML_DRAG_TEXTAREA_SCROLLBAR,
drag_owner,
&rect);
break;
case TEXTAREA_DRAG_SELECTION:
html_set_drag_type(html,
HTML_DRAG_TEXTAREA_SELECTION,
drag_owner,
&rect);
break;
default:
LOG("Drag type %d not handled.", msg->data.drag);
/* This is a logic faliure in the
* front end code so abort.
*/
assert(0);
break;
}
}
break;
case TEXTAREA_MSG_REDRAW_REQUEST:
{
/* Request redraw of the required textarea rectangle */
int x, y;
if (html->reflowing == true) {
/* Can't redraw during layout, and it will
* be redrawn after layout anyway. */
break;
}
box_coords(box, &x, &y);
content__request_redraw((struct content *)html,
x + msg->data.redraw.x0,
y + msg->data.redraw.y0,
msg->data.redraw.x1 - msg->data.redraw.x0,
msg->data.redraw.y1 - msg->data.redraw.y0);
}
break;
case TEXTAREA_MSG_SELECTION_REPORT:
if (msg->data.selection.have_selection) {
/* Textarea now has a selection */
union html_selection_owner sel_owner;
sel_owner.textarea = box;
html_set_selection(html, HTML_SELECTION_TEXTAREA,
sel_owner,
msg->data.selection.read_only);
} else {
/* The textarea now has no selection */
union html_selection_owner sel_owner;
sel_owner.none = true;
html_set_selection(html, HTML_SELECTION_NONE,
sel_owner, true);
}
break;
case TEXTAREA_MSG_CARET_UPDATE:
if (html->bw == NULL)
break;
if (msg->data.caret.type == TEXTAREA_CARET_HIDE) {
union html_focus_owner focus_owner;
focus_owner.textarea = box;
html_set_focus(html, HTML_FOCUS_TEXTAREA,
focus_owner, true, 0, 0, 0, NULL);
} else {
union html_focus_owner focus_owner;
focus_owner.textarea = box;
html_set_focus(html, HTML_FOCUS_TEXTAREA,
focus_owner, false,
msg->data.caret.pos.x,
msg->data.caret.pos.y,
msg->data.caret.pos.height,
msg->data.caret.pos.clip);
}
break;
case TEXTAREA_MSG_TEXT_MODIFIED:
form_gadget_update_value(gadget,
strndup(msg->data.modified.text,
msg->data.modified.len));
break;
}
}
/**
* Request a redraw of an area of a content
*
* \param h high-level cache handle
* \param x x co-ord of left edge
* \param y y co-ord of top edge
* \param width Width of rectangle
* \param height Height of rectangle
*/
void content_request_redraw(struct hlcache_handle *h,
int x, int y, int width, int height)
{
content__request_redraw(hlcache_handle_get_content(h),
x, y, width, height);
}
