SD lib is not pilite across platforms

fitting all into .h file to be used if included

Author: neu-rah

Diff for: .travis.yml

@@ -62,9 +62,9 @@ install:
    - wget https://github.com/adafruit/Adafruit-ST7735-Library/archive/master.zip -O /tmp/Adafruit-ST7735-Library-master.zip
    - unzip /tmp/Adafruit-ST7735-Library-master.zip -d /tmp/
 
-   - wget https://github.com/PaulStoffregen/SD/archive/master.zip -O /tmp/SD-master.zip
-   - unzip /tmp/SD-master.zip -d /tmp/
+   # - wget https://github.com/PaulStoffregen/SD/archive/master.zip -O /tmp/SD-master.zip
+   # - unzip /tmp/SD-master.zip -d /tmp/
 
 script:
-  #  - platformio ci --lib="."  --board=nanoatmega328 --board=teensy31
-   - platformio ci --lib="." --lib="/tmp/Streaming-master" --lib="/tmp/Adafruit-GFX-Library-master" --lib="/tmp/PCINT-master" --lib="/tmp/U8glib_Arduino-master" --lib="/tmp/AnsiStream-master" --lib="/tmp/NewliquidCrystal" --lib="/tmp/Adafruit-PCD8544-Nokia-5110-LCD-library-master" --lib="/tmp/Adafruit-ST7735-Library-master" --lib="/tmp/SD-master" --board=nanoatmega328 --board=teensy31 --board=due
+  #  - platformio ci --lib="."  --lib="/tmp/SD-master"  --board=nanoatmega328 --board=teensy31 
+   - platformio ci --lib="." --lib="/tmp/Streaming-master" --lib="/tmp/Adafruit-GFX-Library-master" --lib="/tmp/PCINT-master" --lib="/tmp/U8glib_Arduino-master" --lib="/tmp/AnsiStream-master" --lib="/tmp/NewliquidCrystal" --lib="/tmp/Adafruit-PCD8544-Nokia-5110-LCD-library-master" --lib="/tmp/Adafruit-ST7735-Library-master" --board=nanoatmega328 --board=teensy31 --board=due

Diff for: src/plugin/SDMenu.cpp

@@ -1,9 +1,9 @@
 /* -*- C++ -*- */
+#pragma once
 // a full automated SDCard file select
 // plugin for arduino menu library
 // IO: Serial
 // Feb 2019 - Rui Azevedo [[email protected]]
-
 #include <menu.h>
 
 using namespace Menu;
@@ -45,4 +45,123 @@ using namespace Menu;
     //print menu and items as this is a virtual data menu
     Used printTo(navRoot &root,bool sel,menuOut& out, idx_t idx,idx_t len,idx_t pn);
   };
+
+  result SDMenu::sysHandler(SYS_FUNC_PARAMS) {
+    switch(event) {
+      case enterEvent:
+        if (nav.root->navFocus!=nav.target) {//on sd card entry
+          nav.sel=((SDMenu*)(&item))->selIdx;//restore context
+        }
+    }
+    return proceed;
+  }
+
+  void SDMenu::doNav(navNode& nav,navCmd cmd) {
+    switch(cmd.cmd) {
+      case enterCmd: {
+          String selFile=entry(nav.sel);
+          if (selFile.endsWith("/")) {
+            // Serial.print("\nOpen folder...");
+            //open folder (reusing the menu)
+            folderName+=selFile;
+            dirty=true;//redraw menu
+            nav.sel=0;
+          } else {
+            selIdx=nav.sel;
+            //Serial.print("\nFile selected:");
+            //select a file and return
+            selectedFile=selFile;
+            nav.root->node().event(enterEvent);
+            menuNode::doNav(nav,escCmd);
+          }
+          return;
+        }
+      case escCmd:
+        if(folderName=="/")//at root?
+          menuNode::doNav(nav,escCmd);//then exit
+        else {//previous folder
+          idx_t at=folderName.lastIndexOf("/",folderName.length()-2)+1;
+          String fn=folderName.substring(at,folderName.length()-1);
+          folderName.remove(folderName.lastIndexOf("/",folderName.length()-2)+1);
+          // Serial.println(folderName);
+          dirty=true;//redraw menu
+          nav.sel=entryIdx(fn);
+        }
+        selIdx=nav.sel;
+        return;
+    }
+    menuNode::doNav(nav,cmd);
+    selIdx=nav.sel;
+  }
+
+  idx_t SDMenu::count() {
+    File dir=SD.open(folderName.c_str());
+    int cnt=0;
+    while(true) {
+      File file=dir.openNextFile();
+      if (!file) {
+        file.close();
+        dir.close();
+        break;
+      }
+      file.close();
+      cnt++;
+    }
+    dir.close();
+    return cnt;
+  }
+
+  idx_t SDMenu::entryIdx(String name) {
+    File dir=SD.open(folderName.c_str());
+    int cnt=0;
+    while(true) {
+      File file=dir.openNextFile();
+      if (!file) {
+        file.close();
+        break;
+      }
+      if(name==file.name()) {
+        file.close();
+        dir.close();
+        return cnt;
+      }
+      file.close();
+      cnt++;
+    }
+    dir.close();
+    return 0;//stay at menu start if not found
+  }
+
+  String SDMenu::entry(idx_t idx) {
+    File dir=SD.open(folderName.c_str());
+    idx_t cnt=0;
+    while(true) {
+      File file=dir.openNextFile();
+      if (!file) {
+        file.close();
+        break;
+      }
+      if(idx==cnt++) {
+        String n=String(file.name())+(file.isDirectory()?"/":"");
+        file.close();
+        dir.close();
+        return n;
+      }
+      file.close();
+    }
+    dir.close();
+    return "";
+  }
+
+  Used SDMenu::printTo(navRoot &root,bool sel,menuOut& out, idx_t idx,idx_t len,idx_t pn) {
+    ((menuNodeShadow*)shadow)->sz=count();
+    if(root.navFocus!=this) //show given title
+      return menuNode::printTo(root,sel,out,idx,len,pn);
+    else if(idx==-1)//when menu open (show folder name)
+      return out.printRaw(folderName.c_str(),len);
+    //drawing options
+    len-=out.printRaw(entry(idx).c_str(),len);
+    return len;
+  }
+
 #endif