void setup_node( dom::element node )
{
dom::element on = node.find_first("option[check='on'],options[check='on']");
dom::element off = node.find_first("option[check='off'],options[check='off']");
dom::element mixed = node.find_first("options[check='mixed']");
const wchar_t* _prev = node.get_attribute(CHECK_ATTR);
std::wstring prev = _prev?_prev:L"";
if( mixed.is_valid() || (on.is_valid() && off.is_valid()))
{
node.set_attribute(CHECK_ATTR,L"mixed");
if(prev != L"mixed") node.update();
}
else if( on.is_valid() )
{
node.set_attribute(CHECK_ATTR,L"on");
if(prev != L"on") node.update();
}
else
{
node.set_attribute(CHECK_ATTR,L"off");
if(prev != L"off") node.update();
}
}
void sort_rows( dom::element& table, int column_no )
{
row_sorter rs( column_no );
int fr = fixed_rows( table );
table.sort(rs,fr);
table.update(true);
}
// selects all options in multiselect.
inline void select_all_options(dom::element& select_el )
{
selected_cb all_options;
select_el.find_all(&all_options, "option"); // select all currently selected <option>s
for( int n = int(all_options.elements.size()) - 1; n >= 0 ; --n )
all_options.elements[n].set_state(STATE_CHECKED,0, false); // set state
select_el.update();
}
// clear checked states in multiselect <select>.
// this simply resets :checked state for all checked <option>'s
inline void clear_all_options(dom::element& select_el )
{
selected_cb selected;
select_el.find_all(&selected, "option:checked,[role='option']:checked"); // select all currently selected <option>s
for( int n = int(selected.elements.size()) - 1; n >= 0 ; --n )
selected.elements[n].set_state(0, STATE_CHECKED, false); // reset state
select_el.update();
}
virtual BOOL on_event (HELEMENT he, HELEMENT target, BEHAVIOR_EVENTS type, UINT_PTR reason )
{
if( type != UI_STATE_CHANGED )
return FALSE; // we handle only UI_STATE_CHANGED here.
assert(objects_bar.is_valid());
// call of getCurrentObjects method
json::value stack = dom::element(he).xcall("getCurrentObjects");
assert(stack.is_array());
objects_bar.clear();
int n = stack.length();
for( int i = 0; i < n; ++i )
{
dom::element li = dom::element::create("li", stack.nth(i).to_string());
objects_bar.append(li);
}
objects_bar.update();
return FALSE; /*mark it as not handled because some other behaviors in the chain may want to handle it */
}
/** Set value of the DOM element. Sets value for elements recognized by get_ctl_type() function.
* \param[in] el \b const dom::element&, The element.
* \param[in] v \b const value_t&, The value.
**/
inline void set_value(dom::element& el, const value_t& v )
{
switch(get_ctl_type(el))
{
case CTL_UNKNOWN: break;
case CTL_EDIT:
case CTL_DECIMAL:
case CTL_CURRENCY:
case CTL_PASSWORD:
case CTL_NUMERIC:
case CTL_PROGRESS:
case CTL_SLIDER:
case CTL_SELECT_SINGLE:
case CTL_SELECT_MULTIPLE:
case CTL_DD_SELECT:
case CTL_TEXTAREA:
case CTL_DATE:
case CTL_CALENDAR:
case CTL_HIDDEN:
default:
el.set_value(v);
break;
// special cases:
case CTL_BUTTON: break;
case CTL_CHECKBOX: set_checkbox_bits(el,v); break;
case CTL_RADIO: set_radio_index(el,v); break;
case CTL_HTMLAREA:
{
utf8::ostream os; os << v.get( L"" );
el.set_html( os.data(), os.length() );
el.update();
} break;
case CTL_NO:
assert(false);
break;
}
}
//toggles checkmark
void toggle_checkmark( dom::element select, dom::element item )
{
const wchar_t* _old_state = item.get_attribute(CHECK_ATTR);
std::wstring old_state = _old_state?_old_state:L"";
if( streq(item.get_element_type(), "options"))
{
// non-terminal node case
// inner function
struct child_toggler: dom::callback
{
const wchar_t* state;
child_toggler(const wchar_t* st): state(st) {}
inline bool on_element(HELEMENT he)
{
htmlayout::dom::element item = he;
item.set_attribute( CHECK_ATTR, state );
return false;
}
};
const wchar_t* new_state;
NODE_STATE old_state = get_state(item);
if(old_state == NODE_OFF)
new_state = L"on";
else
new_state = L"off";
child_toggler ct( new_state );
// do it for all children
item.find_all(&ct, "option,options");
// and for itself
item.set_attribute( CHECK_ATTR, new_state );
item.update();
}
else if( streq(item.get_element_type(), "option"))
{
// terminal node
const wchar_t* new_state;
if(wcseq(item.get_attribute("check"),L"on"))
{
new_state = L"off";
}
else
new_state = L"on";
item.set_attribute( CHECK_ATTR, new_state );
item.update();
}
// as state was changed we need to update parent chain here too.
dom::element p = item.parent();
while( p.is_valid() && p != select )
{
if( streq(p.get_element_type(),"options" ))
{
setup_node(p);
}
p = p.parent();
}
}