void WTemplate::updateDom(DomElement& element, bool all)
{
if (changed_ || all) {
std::set<WWidget *> previouslyRendered;
std::vector<WWidget *> newlyRendered;
for (WidgetMap::const_iterator i = widgets_.begin(); i != widgets_.end();
++i) {
WWidget *w = i->second;
if (w->isRendered() && w->webWidget()->domCanBeSaved()) {
previouslyRendered.insert(w);
}
}
bool saveWidgets = element.mode() == DomElement::ModeUpdate;
previouslyRendered_ = saveWidgets ? &previouslyRendered : 0;
newlyRendered_ = &newlyRendered;
std::stringstream html;
renderTemplate(html);
previouslyRendered_ = 0;
newlyRendered_ = 0;
for (unsigned i = 0; i < newlyRendered.size(); ++i) {
WWidget *w = newlyRendered[i];
if (previouslyRendered.find(w) != previouslyRendered.end()) {
if (saveWidgets)
element.saveChild(w->id());
previouslyRendered.erase(w);
}
}
element.setProperty(Wt::PropertyInnerHTML, html.str());
changed_ = false;
for (std::set<WWidget *>::const_iterator i = previouslyRendered.begin();
i != previouslyRendered.end(); ++i) {
WWidget *w = *i;
w->webWidget()->setRendered(false);
}
}
WInteractWidget::updateDom(element, all);
}
void WTemplate::updateDom(DomElement& element, bool all)
{
if (changed_ || all) {
std::set<WWidget *> previouslyRendered;
std::vector<WWidget *> newlyRendered;
for (WidgetMap::const_iterator i = widgets_.begin(); i != widgets_.end();
++i) {
WWidget *w = i->second;
if (w->isRendered() && w->webWidget()->domCanBeSaved()) {
previouslyRendered.insert(w);
}
}
bool saveWidgets = element.mode() == DomElement::ModeUpdate;
previouslyRendered_ = saveWidgets ? &previouslyRendered : 0;
newlyRendered_ = &newlyRendered;
std::stringstream html;
renderTemplate(html);
previouslyRendered_ = 0;
newlyRendered_ = 0;
for (unsigned i = 0; i < newlyRendered.size(); ++i) {
WWidget *w = newlyRendered[i];
if (previouslyRendered.find(w) != previouslyRendered.end()) {
if (saveWidgets)
element.saveChild(w->id());
previouslyRendered.erase(w);
}
}
if (encodeTemplateText_)
element.setProperty(Wt::PropertyInnerHTML, html.str());
else
element.setProperty(Wt::PropertyInnerHTML, encode(html.str()));
changed_ = false;
for (std::set<WWidget *>::const_iterator i = previouslyRendered.begin();
i != previouslyRendered.end(); ++i) {
WWidget *w = *i;
// it could be that the widget was removed/deleted in the mean time
// as a side-effect of rendering some of the widgets; thus we check
// that the widget is still a child
for (WidgetMap::const_iterator j = widgets_.begin();
j != widgets_.end(); ++j) {
if (j->second == w) {
w->webWidget()->setRendered(false);
break;
}
}
}
WApplication::instance()->session()->renderer()
.updateFormObjects(this, true);
}
WInteractWidget::updateDom(element, all);
}
