experimental jsonAPI

Author: neu-rah

examples/LCDs/PCF8574/PCF8574/PCF8574.ino

@@ -109,7 +109,7 @@ class altPrompt:public prompt {
 public:
   altPrompt(constMEM promptShadow& p):prompt(p) {}
   Used printTo(navRoot &root,bool sel,menuOut& out, idx_t idx,idx_t len,idx_t) override {
-    return out.printRaw("special prompt!",len);;
+    return out.printRaw("special prompt!",len);
   }
 };
 
@@ -209,5 +209,6 @@ void setup() {
 void loop() {
   nav.poll();
   digitalWrite(LEDPIN, ledCtrl);
+  test=(millis()/1000)%101;
   delay(100);//simulate a delay as if other tasks are running
 }

library.properties

@@ -1,5 +1,5 @@
 name=ArduinoMenu library
-version=4.5.0
+version=4.5.1
 author=Rui Azevedo, [email protected]
 maintainer=neu-rah, [email protected]
 sentence=Generic menu/interactivity system

src/menuIO/jsonFmt.cpp

@@ -0,0 +1,13 @@
+#ifdef MENU_FMT_WRAPS
+  #include "../menu.h"
+  #include "jsonFmt.h"
+
+  namespace Menu {
+    void jsonOptions(menuOut& o,navNode &nav,menuNode& node,idx_t idx) {
+      o<<"\"options\":[";
+      for(idx_t n=0;n<node.sz();n++)
+        o<<(n?",":"")<<"\""<<node[n]<<"\"";
+      o<<"]";
+    }
+  };
+#endif

src/menuIO/jsonFmt.h

@@ -0,0 +1,120 @@
+/* -*- C++ -*- */
+
+#ifndef RSITE_ARDUINO_MENU_JSONFMT
+  #define RSITE_ARDUINO_MENU_JSONFMT
+
+  #ifdef MENU_FMT_WRAPS
+  #include "../menu.h"
+  #include "../items.h"
+  #include "esp8266Out.h"
+
+    namespace Menu {
+
+      void jsonOptions(menuOut& o,navNode &nav,menuNode& node,idx_t idx);
+
+      //wraps a webserver output and writes xml to it
+      template<class T>
+      class jsonFmt:public T {
+        public:
+          using T::T;
+          result fmt(bool start,prompt& target,menuOut::fmtParts part,navNode &nav,idx_t idx=-1) {
+            switch(part) {
+              case menuOut::fmtPanel:
+                if (start) *this<<"{";
+                else T::operator<<("}");
+                break;
+              case menuOut::fmtTitle:
+                if (start) T::operator<<("\"title\":");
+                else T::operator<<(",");
+                break;
+              case menuOut::fmtBody:
+                if (start) {
+                  *this<<"\"sel\":\""<<nav.sel<<"\",";
+                  *this<<"\"items\": [";
+                } else T::operator<<("],");      break;
+              case menuOut::fmtUnit:
+                *this<<(start?"\"unit\":":",");
+                break;
+              case menuOut::fmtOp:
+                if (start) {
+                  *this<<"{"
+                    <<"\"op\":"
+                    <<"\"idx\":\""<<idx<<"\","
+                    <<"\"enabled\":"<<target.enabled<<"\",";
+                } else T::operator<<("}");
+                break;
+              case menuOut::fmtToggle:
+                if (start) {
+                  *this<<"\"tog\":[";
+                  jsonOptions(*this,nav,*(menuNode*)&target,idx);
+                  *this<<"],\"value\":";
+                } else *this<<",";
+                break;
+              case menuOut::fmtPrompt:
+                if (start) {
+                  *this<<"\"tog\":";
+                  jsonOptions(*this,nav,*(menuNode*)&target,idx);
+                  *this<<",\"value\":";
+                } else {
+                  *this<<",";
+                  *this<<"\"name\":"<<target.typeName();
+                  *this<<",";
+                  *this<<"\"";
+                };
+                break;
+              case menuOut::fmtSelect:
+                if (start) {
+                  *this<<"\"select\":";
+                  jsonOptions(*this,nav,*(menuNode*)&target,idx);
+                } else *this<<",";
+                break;
+              case menuOut::fmtChoose:
+                if (start) {
+                  *this<<"\"choose\":";
+                  jsonOptions(*this,nav,*(menuNode*)&target,idx);
+                } else *this<<",";
+                break;
+                break;
+              case menuOut::fmtField:
+                if (start) {
+                  *this<<"\"field\":{\"high\":\"";
+                  target.printHigh(*this);
+                  *this<<"\",\"low\":\"";
+                  target.printLow(*this);
+                  *this<<"\",\"step\":\"";
+                  target.printStep(*this);
+                  *this<<"\",\"tune\":\"";
+                  target.printTune(*this);
+                  *this<<"\"}";
+                } else *this<<",";
+                break;
+              case menuOut::fmtTextField:
+                if (start) *this<<"\"value\":";
+                else *this<<",";
+                break;
+              case menuOut::fmtIdx:
+                if (start) *this<<"\"idx\":";
+                else *this<<",";
+                break;
+              case menuOut::fmtCursor:
+                if (start) *this<<"\"cursor\":";
+                else *this<<",";
+                break;
+              case menuOut::fmtOpBody:
+                if (start) *this<<"\"body\":";
+                else *this<<",";
+                break;
+              case menuOut::fmtPreview:
+                if (start) *this<<"\"preview\":";
+                else *this<<",";
+                break;
+              default:break;
+            }
+            return proceed;
+          }
+          result fmtStart(prompt& target,menuOut::fmtParts part,navNode &nav,idx_t idx=-1) override {return fmt(true,target,part,nav,idx);}
+          result fmtEnd(prompt& target,menuOut::fmtParts part,navNode &nav,idx_t idx=-1) override {return fmt(false,target,part,nav,idx);}
+      };
+    }//namespace
+  #endif
+#endif