UIWidgetPtr UIManager::createWidgetFromOTML(const OTMLNodePtr& widgetNode, const UIWidgetPtr& parent)
{
OTMLNodePtr originalStyleNode = getStyle(widgetNode->tag());
if(!originalStyleNode)
stdext::throw_exception(stdext::format("'%s' is not a defined style", widgetNode->tag()));
OTMLNodePtr styleNode = originalStyleNode->clone();
styleNode->merge(widgetNode);
std::string widgetType = styleNode->valueAt("__class");
// call widget creation from lua
UIWidgetPtr widget = g_lua.callGlobalField<UIWidgetPtr>(widgetType, "create");
if(parent)
parent->addChild(widget);
if(widget) {
widget->callLuaField("onCreate");
widget->setStyleFromNode(styleNode);
for(const OTMLNodePtr& childNode : styleNode->children()) {
if(!childNode->isUnique()) {
createWidgetFromOTML(childNode, widget);
styleNode->removeChild(childNode);
}
}
} else
stdext::throw_exception(stdext::format("unable to create widget of type '%s'", widgetType));
widget->callLuaField("onSetup");
return widget;
}
void OTMLNode::addChild(const OTMLNodePtr& newChild)
{
// replace is needed when the tag is marked as unique
if(newChild->hasTag()) {
for(const OTMLNodePtr& node : m_children) {
if(node->tag() == newChild->tag() && (node->isUnique() || newChild->isUnique())) {
newChild->setUnique(true);
if(node->hasChildren() && newChild->hasChildren()) {
OTMLNodePtr tmpNode = node->clone();
tmpNode->merge(newChild);
newChild->copy(tmpNode);
}
replaceChild(node, newChild);
// remove any other child with the same tag
auto it = m_children.begin();
while(it != m_children.end()) {
OTMLNodePtr node = (*it);
if(node != newChild && node->tag() == newChild->tag()) {
it = m_children.erase(it);
} else
++it;
}
return;
}
}
}
m_children.push_back(newChild);
}
void OTMLNode::merge(const OTMLNodePtr& node)
{
for(const OTMLNodePtr& child : node->m_children)
addChild(child->clone());
setTag(node->tag());
setSource(node->source());
}
void UIWidget::applyStyle(const OTMLNodePtr& styleNode)
{
if(m_destroyed)
return;
if(styleNode->size() == 0)
return;
m_loadingStyle = true;
try {
// translate ! style tags
for(const OTMLNodePtr& node : styleNode->children()) {
if(node->tag()[0] == '!') {
std::string tag = node->tag().substr(1);
std::string code = stdext::format("tostring(%s)", node->value());
std::string origin = "@" + node->source() + ": [" + node->tag() + "]";
g_lua.evaluateExpression(code, origin);
std::string value = g_lua.popString();
node->setTag(tag);
node->setValue(value);
}
}
onStyleApply(styleNode->tag(), styleNode);
callLuaField("onStyleApply", styleNode->tag(), styleNode);
if(m_firstOnStyle) {
UIWidgetPtr parent = getParent();
if(isFocusable() && isExplicitlyVisible() && isExplicitlyEnabled() &&
parent && ((!parent->getFocusedChild() && parent->getAutoFocusPolicy() == Fw::AutoFocusFirst) ||
parent->getAutoFocusPolicy() == Fw::AutoFocusLast)) {
focus();
}
}
m_firstOnStyle = false;
} catch(stdext::exception& e) {
g_logger.traceError(stdext::format("failed to apply style to widget '%s': %s", m_id, e.what()));
}
m_loadingStyle = false;
}
void OTMLNode::copy(const OTMLNodePtr& node)
{
setTag(node->tag());
setValue(node->rawValue());
setUnique(node->isUnique());
setNull(node->isNull());
setSource(node->source());
clear();
for(const OTMLNodePtr& child : node->m_children)
addChild(child->clone());
}
void UIWidget::applyStyle(const OTMLNodePtr& styleNode)
{
if(m_destroyed)
return;
if(styleNode->size() == 0)
return;
m_loadingStyle = true;
try {
// translate ! style tags
for(const OTMLNodePtr& node : styleNode->children()) {
if(node->tag()[0] == '!') {
std::string tag = node->tag().substr(1);
std::string code = Fw::formatString("tostring(%s)", node->value().c_str());
std::string origin = "@" + node->source() + "[" + node->tag() + "]";
g_lua.evaluateExpression(code, origin);
std::string value = g_lua.popString();
node->setTag(tag);
node->setValue(value);
}
}
onStyleApply(styleNode->tag(), styleNode);
callLuaField("onStyleApply", styleNode->tag(), styleNode);
if(m_firstOnStyle) {
callLuaField("onSetup");
// always focus new child
if(isFocusable() && isExplicitlyVisible() && isExplicitlyEnabled())
focus();
}
m_firstOnStyle = false;
} catch(Exception& e) {
logError("Failed to apply style to widget '", m_id, "' style: ", e.what());
}
m_loadingStyle = false;
}
void UIWidget::applyStyle(const OTMLNodePtr& styleNode)
{
if(styleNode->size() == 0)
return;
m_loadingStyle = true;
try {
onStyleApply(styleNode->tag(), styleNode);
callLuaField("onStyleApply", styleNode->tag(), styleNode);
if(m_firstOnStyle) {
callLuaField("onSetup");
// always focus new child
if(isFocusable() && isExplicitlyVisible() && isExplicitlyEnabled())
focus();
}
m_firstOnStyle = false;
} catch(Exception& e) {
logError("Failed to apply style to widget '", m_id, "' style: ", e.what());
}
m_loadingStyle = false;
}
void UIManager::importStyleFromOTML(const OTMLNodePtr& styleNode)
{
std::string tag = styleNode->tag();
std::vector<std::string> split = stdext::split(tag, "<");
if(split.size() != 2)
throw OTMLException(styleNode, "not a valid style declaration");
std::string name = split[0];
std::string base = split[1];
bool unique = false;
stdext::trim(name);
stdext::trim(base);
if(name[0] == '#') {
name = name.substr(1);
unique = true;
styleNode->setTag(name);
styleNode->writeAt("__unique", true);
}
OTMLNodePtr oldStyle = m_styles[name];
// Warn about redefined styles
/*
if(!g_app.isRunning() && (oldStyle && !oldStyle->valueAt("__unique", false))) {
auto it = m_styles.find(name);
if(it != m_styles.end())
g_logger.warning(stdext::format("style '%s' is being redefined", name));
}
*/
if(!oldStyle || !oldStyle->valueAt("__unique", false) || unique) {
OTMLNodePtr originalStyle = getStyle(base);
if(!originalStyle)
stdext::throw_exception(stdext::format("base style '%s', is not defined", base));
OTMLNodePtr style = originalStyle->clone();
style->merge(styleNode);
style->setTag(name);
m_styles[name] = style;
}
}
std::string OTMLEmitter::emitNode(const OTMLNodePtr& node, int currentDepth)
{
std::stringstream ss;
// emit nodes
if(currentDepth >= 0) {
// fill spaces for current depth
for(int i=0;i<currentDepth;++i)
ss << " ";
// emit node tag
if(node->hasTag()) {
ss << node->tag();
// add ':' to if the node is unique or has value
if(node->hasValue() || node->isUnique() || node->isNull())
ss << ":";
} else
ss << "-";
// emit node value
if(node->isNull())
ss << " ~";
else if(node->hasValue()) {
ss << " ";
std::string value = node->value();
// emit multiline values
if(value.find("\n") != std::string::npos) {
if(value[value.length()-1] == '\n' && value[value.length()-2] == '\n')
ss << "|+";
else if(value[value.length()-1] == '\n')
ss << "|";
else
ss << "|-";
// multilines
for(std::size_t pos = 0; pos < value.length(); ++pos) {
ss << "\n";
// fill spaces for multiline depth
for(int i=0;i<currentDepth+1;++i)
ss << " ";
// fill until a new line
while(pos < value.length()) {
if(value[pos] == '\n')
break;
ss << value[pos++];
}
}
// emit inline values
} else
ss << value;
}
}
// emit children
for(int i=0;i<node->size();++i) {
if(currentDepth >= 0 || i != 0)
ss << "\n";
ss << emitNode(node->atIndex(i), currentDepth+1);
}
return ss.str();
}
