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Code Issues Releases Wiki Activity

[web_server] Reduce flash usage by consolidating parameter parsing (#10154)

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This commit is contained in:
J. Nick Koston
2025-08-10 16:09:31 -05:00
committed by GitHub
parent a1371aea37
commit 6bfe281d18
2 changed files with 109 additions and 159 deletions
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60
esphome/components/web_server/web_server.h
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@@ -498,6 +498,66 @@ class WebServer : public Controller, public Component, public AsyncWebHandler {
protected:
void add_sorting_info_(JsonObject &root, EntityBase *entity);
#ifdef USE_LIGHT
// Helper to parse and apply a float parameter with optional scaling
template<typename T, typename Ret>
void parse_light_param_(AsyncWebServerRequest *request, const char *param_name, T &call, Ret (T::*setter)(float),
float scale = 1.0f) {
if (request->hasParam(param_name)) {
auto value = parse_number<float>(request->getParam(param_name)->value().c_str());
if (value.has_value()) {
(call.*setter)(*value / scale);
}
}
}
// Helper to parse and apply a uint32_t parameter with optional scaling
template<typename T, typename Ret>
void parse_light_param_uint_(AsyncWebServerRequest *request, const char *param_name, T &call,
Ret (T::*setter)(uint32_t), uint32_t scale = 1) {
if (request->hasParam(param_name)) {
auto value = parse_number<uint32_t>(request->getParam(param_name)->value().c_str());
if (value.has_value()) {
(call.*setter)(*value * scale);
}
}
}
#endif
// Generic helper to parse and apply a float parameter
template<typename T, typename Ret>
void parse_float_param_(AsyncWebServerRequest *request, const char *param_name, T &call, Ret (T::*setter)(float)) {
if (request->hasParam(param_name)) {
auto value = parse_number<float>(request->getParam(param_name)->value().c_str());
if (value.has_value()) {
(call.*setter)(*value);
}
}
}
// Generic helper to parse and apply an int parameter
template<typename T, typename Ret>
void parse_int_param_(AsyncWebServerRequest *request, const char *param_name, T &call, Ret (T::*setter)(int)) {
if (request->hasParam(param_name)) {
auto value = parse_number<int>(request->getParam(param_name)->value().c_str());
if (value.has_value()) {
(call.*setter)(*value);
}
}
}
// Generic helper to parse and apply a string parameter
template<typename T, typename Ret>
void parse_string_param_(AsyncWebServerRequest *request, const char *param_name, T &call,
Ret (T::*setter)(const std::string &)) {
if (request->hasParam(param_name)) {
// .c_str() is required for Arduino framework where value() returns Arduino String instead of std::string
std::string value = request->getParam(param_name)->value().c_str(); // NOLINT(readability-redundant-string-cstr)
(call.*setter)(value);
}
}
web_server_base::WebServerBase *base_;
#ifdef USE_ARDUINO
DeferredUpdateEventSourceList events_;