Merge branch 'dev' of https://github.com/aircoookie/WLED into dev

Conflicts: wled00/NodeStruct.h wled00/data/index.htm wled00/data/index.js wled00/fcn_declare.h wled00/html_ui.h wled00/json.cpp wled00/udp.cpp wled00/wled.cpp wled00/wled.h
2021-03-10 13:23:03 +01:00 · 2021-03-10 13:23:03 +01:00 · cb38976162
commit cb38976162
parent 4c5c4d1700 3460f9d9cc
12 changed files with 2373 additions and 2334 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -2,6 +2,11 @@

 ### Development versions after 0.11.1 release

+#### Build 2103090
+
+-   Added Auto Node discovery (PR #1683)
+-   Added tooltips to quick color selectors for accessibility
+
 #### Build 2103060

 -   Auto start field population in bus config
--- a/wled00/NodeStruct.cpp
+++ b/wled00/NodeStruct.cpp
@ -1,16 +0,0 @@
-#include "NodeStruct.h"
-
-String getNodeTypeDisplayString(uint8_t nodeType) {
-  switch (nodeType)
-  {
-    case NODE_TYPE_ID_ESP8266:     return F("ESP8266");
-    case NODE_TYPE_ID_ESP32:       return F("ESP32");
-  }
-  return "Undefined";
-}
-
-NodeStruct::NodeStruct() :
-  age(0), nodeType(0), build(0)
-{
-  for (uint8_t i = 0; i < 4; ++i) { ip[i] = 0; }
-}
--- a/wled00/NodeStruct.h
+++ b/wled00/NodeStruct.h
@ -1,5 +1,5 @@
-#ifndef DATASTRUCTS_NODESTRUCT_H
-#define DATASTRUCTS_NODESTRUCT_H
+#ifndef WLED_NODESTRUCT_H
+#define WLED_NODESTRUCT_H

 /*********************************************************************************************\
 * NodeStruct from the ESP Easy project (https://github.com/letscontrolit/ESPEasy)
@ -8,27 +8,27 @@
 #include <map>
 #include <IPAddress.h>

-
 #define NODE_TYPE_ID_UNDEFINED        0
-#define NODE_TYPE_ID_ESP8266            1
-#define NODE_TYPE_ID_ESP32              2
-
-String getNodeTypeDisplayString(uint8_t nodeType);
+#define NODE_TYPE_ID_ESP8266         82
+#define NODE_TYPE_ID_ESP32           32

 /*********************************************************************************************\
 * NodeStruct
 \*********************************************************************************************/
 struct NodeStruct
 {
-  NodeStruct();
-
  String    nodeName;
  IPAddress ip;
  uint8_t   unit;
  uint8_t   age;
  uint8_t   nodeType;
  uint32_t  build;
+
+  NodeStruct() : age(0), nodeType(0), build(0)
+  {
+    for (uint8_t i = 0; i < 4; ++i) { ip[i] = 0; }
+  }
 };
 typedef std::map<uint8_t, NodeStruct> NodesMap;

-#endif // DATASTRUCTS_NODESTRUCT_H
+#endif // WLED_NODESTRUCT_H
--- a/wled00/const.h
+++ b/wled00/const.h
@ -233,6 +233,13 @@
  #define JSON_BUFFER_SIZE 16384
 #endif

+// Maximum size of node map (list of other WLED instances)
+#ifdef ESP8266
+  #define WLED_MAX_NODES 15
+#else
+  #define WLED_MAX_NODES 150
+#endif
+
 //this is merely a default now and can be changed at runtime
 #ifndef LEDPIN
 #define LEDPIN 2
--- a/wled00/data/index.css
+++ b/wled00/data/index.css
@ -90,9 +90,10 @@ button {

 #namelabel {
 	position: fixed;
-	bottom: calc(var(--bh) + 5px);
+	bottom: calc(var(--bh) + 6px);
 	right: 4px;
 	color: var(--c-6);
+  cursor: pointer;
 	writing-mode: vertical-rl;
 }

@ -377,6 +378,14 @@ button {
 	z-index: 2;
 }

+#ndlt {
+  margin: 12px 0;
+}
+
+.valtd i {
+	font-size: 14px;
+}
+
 #roverstar {
 	position: fixed;
 	top: calc(var(--th) + 5px);
@ -406,6 +415,10 @@ button {
 	display: inline-block;
 }

+#kn td {
+  padding-bottom: 12px;
+}
+
 #lv {
 	max-width: 600px;
 	display: inline-block;
@ -1040,6 +1053,12 @@ input[type="text"].fnd:not(:placeholder-shown) {
 	}
 }

+@media all and (max-width: 770px) {
+	#buttonNodes {
+	display: none;
+	}
+}
+
@media all and (max-width: 1249px) {
 	#buttonPcm, #buttonNo {
 	display: none;
--- a/wled00/data/index.htm
+++ b/wled00/data/index.htm
@ -24,9 +24,9 @@
 			<button id="buttonSync" onclick="toggleSync()"><i class="icons">&#xe116;</i><p class="tab-label">Sync</p></button>
 			<button id="buttonSr" onclick="toggleLiveview()"><i class="icons">&#xe410;</i><p class="tab-label">Peek</p></button>
 			<button id="buttonI" onclick="toggleInfo()"><i class="icons">&#xe34b;</i><p class="tab-label">Info</p></button>
+			<button id="buttonNodes" onclick="toggleNodes()"><i class="icons">&#xe22d;</i><p class="tab-label">Nodes</p></button></div>
 			<button onclick="window.location.href = '/settings';"><i class="icons">&#xe0a2;</i><p class="tab-label">Config</p></button>
 			<button id="buttonPcm" onclick="togglePcMode(true)"><i class="icons">&#xe23d;</i><p class="tab-label">PC Mode</p></button>
-			<button id="buttonNo" onclick="toggleNodes()"><i class="icons">&#xe22d;</i><p class="tab-label">Nodes</p></button>
 		</div>
 		<div id="briwrap">
 			<p class="hd">Brightness</p>
@ -78,17 +78,17 @@
 			</div>
 		</div>
 		<div id="qcs-w">
-			<div class="qcs" onclick="pC('#ff0000');" style="background-color:#ff0000;"></div>
-			<div class="qcs" onclick="pC('#ffa000');" style="background-color:#ffa000;"></div>
-			<div class="qcs" onclick="pC('#ffc800');" style="background-color:#ffc800;"></div>
-			<div class="qcs" onclick="pC('#ffe0a0');" style="background-color:#ffe0a0;"></div>
-			<div class="qcs" onclick="pC('#ffffff');" style="background-color:#ffffff;"></div>
-			<div class="qcs qcsb" onclick="pC('#000000');" style="background-color:#000000;"></div><br>
-			<div class="qcs" onclick="pC('#ff00ff');" style="background-color:#ff00ff;"></div>
-			<div class="qcs" onclick="pC('#0000ff');" style="background-color:#0000ff;"></div>
-			<div class="qcs" onclick="pC('#00ffc8');" style="background-color:#00ffc8;"></div>
-			<div class="qcs" onclick="pC('#08ff00');" style="background-color:#08ff00;"></div>
-			<div class="qcs" onclick="pC('rnd');" style="background-color:var(--c-3); padding: 4px 8px; transform: translateY(-10px);">R</div>
+			<div class="qcs" onclick="pC('#ff0000');" title="Red" style="background-color:#ff0000;"></div>
+			<div class="qcs" onclick="pC('#ffa000');" title="Orange" style="background-color:#ffa000;"></div>
+			<div class="qcs" onclick="pC('#ffc800');" title="Yellow" style="background-color:#ffc800;"></div>
+			<div class="qcs" onclick="pC('#ffe0a0');" title="Warm White" style="background-color:#ffe0a0;"></div>
+			<div class="qcs" onclick="pC('#ffffff');" title="White" style="background-color:#ffffff;"></div>
+			<div class="qcs qcsb" onclick="pC('#000000');" title="Black" style="background-color:#000000;"></div><br>
+			<div class="qcs" onclick="pC('#ff00ff');" title="Pink" style="background-color:#ff00ff;"></div>
+			<div class="qcs" onclick="pC('#0000ff');" title="Blue" style="background-color:#0000ff;"></div>
+			<div class="qcs" onclick="pC('#00ffc8');" title="Cyan" style="background-color:#00ffc8;"></div>
+			<div class="qcs" onclick="pC('#08ff00');" title="Green" style="background-color:#08ff00;"></div>
+			<div class="qcs" onclick="pC('rnd');" title="Random" style="background-color:var(--c-3); padding: 4px 8px; transform: translateY(-10px);">R</div>
 		</div>
 		<div id="csl">
 			<button class="xxs cl btn" onclick="selectSlot(0);">1</button>
@ -205,7 +205,7 @@

 <div id="connind"></div>
 <div id="toast"></div>
-<div id="namelabel"></div>
+<div id="namelabel" onclick="toggleNodes()"></div>
 <div id="info" class="modal">
 	<div id="imgw">
 		<img alt="" src="data:image/png;base64,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">
@ -213,15 +213,18 @@
 	<div id="kv">Loading...</div><br>
 	<button class="btn infobtn" onclick="requestJson(null)">Refresh</button>
 	<button class="btn infobtn" onclick="toggleInfo()">Close Info</button><br>
-	<button class="btn infobtn" onclick="openGH()">WLED Wiki</button>
+	<button class="btn infobtn" onclick="toggleNodes()">Instance List</button>
 	<button class="btn infobtn" id="resetbtn" onclick="cnfReset()">Reboot WLED</button><br>
 	<span class="h">Made with <span id="heart">&#10084;&#xFE0E;</span> by Aircoookie and the WLED community</span>
 </div>
+
 <div id="nodes" class="modal">
+	<div id="ndlt">WLED instances</div>
 	<div id="kn">Loading...</div><br>
-	<button class="btn infobtn" onclick="requestJson(null)">Refresh</button>
-	<button class="btn infobtn" onclick="toggleNodes()">Close</button><br>
+	<button class="btn infobtn" onclick="loadNodes()">Refresh</button>
+	<button class="btn infobtn" onclick="toggleNodes()">Close list</button><br>
 </div>
+
 <div id="rover" class="modal">
 	<i class="icons huge">&#xe410;</i><br>
 	<div id="lv">?</div><br><br>
@ -231,6 +234,7 @@
 	<button class="btn" onclick="setLor(2)">Override until reboot</button><br>
 	<span class="h">For best performance, it is recommended to turn off the streaming source when not in use.</span>
 </div>
+
 <i id="roverstar" class="icons huge" onclick="setLor(0)">&#xe410;</i><br>
 <script src="iro.js"></script>
 <script src="rangetouch.js"></script>
--- a/wled00/data/index.js
+++ b/wled00/data/index.js
@ -532,35 +532,6 @@ function populatePresets(fromls)
 	populateQL();
 }

-function populateNodes(i)
-{
-	var cn="";
-	var urows="";
-	if (i.nodes) {
-		i.nodes.sort((a,b) => (a.name).localeCompare(b.name));
-		for (var x=0;x<i.nodes.length;x++) {
-			var o = i.nodes[x];
-			if (o.name) {
-				var url = `<button class="btn btna-icon tab" onclick="location.assign('http://${o.ip}');">${o.name}</button>`;
-				urows += inforow(url,`${o.type}<br><i>${o.build==0?"N/A":o.build}</i>`);
-			}
-		}
-		if (i.nodes.length>0) {
-			var botButtons = d.querySelectorAll('.bot button');
-			for (btn of botButtons) {
-				btn.style.width = '20%';
-			}
-			d.getElementById('btnNodes').style.display = "inline";
-		} else
-			d.getElementById('btnNodes').style.display = "none";
-	}
-	cn += `<table class="infot">
-${urows}
-${inforow("Current node:",i.name)}
-</table>`;
-	d.getElementById('kn').innerHTML = cn;
-}
-
 function populateInfo(i)
 {
 	var cn="";
@ -684,6 +655,63 @@ function populateSegments(s)
 	d.getElementById('rsbtn').style.display = (segCount > 1) ? "inline":"none";
 }

+function btype(b) {
+	switch (b) {
+		case 2:
+		case 32: return "ESP32";
+		case 1:
+		case 82: return "ESP8266";
+	}
+	return "?";
+}
+
+function bname(o) {
+	if (o.name=="WLED") return o.ip;
+	return o.name;
+}
+  
+function populateNodes(i,n)
+{
+	var cn="";
+	var urows="";
+	var nnodes = 0;
+	if (n.nodes) {
+		n.nodes.sort((a,b) => (a.name).localeCompare(b.name));
+		for (var x=0;x<n.nodes.length;x++) {
+			var o = n.nodes[x];
+			if (o.name) {
+				var url = `<button class="btn btna-icon tab" onclick="location.assign('http://${o.ip}');">${bname(o)}</button>`;
+				urows += inforow(url,`${btype(o.type)}<br><i>${o.vid==0?"N/A":o.vid}</i>`);
+				nnodes++;
+			}
+		}
+	}
+	if (nnodes == 0) cn += `No other instances found.`;
+	cn += `<table class="infot">${urows}${inforow("Current instance:",i.name)}</table>`;
+	d.getElementById('kn').innerHTML = cn;
+}
+  
+function loadNodes()
+{
+	var url = loc ? `http://${locip}/json/nodes` : '/json/nodes';
+	fetch(url, {
+		method: 'get'
+	})
+	.then(res => {
+		if (!res.ok) {
+			showToast('Could not load Node list!', true);
+		}
+		return res.json();
+	})
+	.then(json => {
+		populateNodes(lastinfo, json);
+	})
+	.catch(function (error) {
+		showToast(error, true);
+		console.log(error);
+	});
+}
+
 function populateEffects()
 {
    var effects = eJson;
@ -1060,7 +1088,6 @@ function requestJson(command, rinfo = true, verbose = true, callback = null) {
 			pmtLast = pmt;
 			lastinfo = info;
 			if (isInfo) populateInfo(info);
-			populateNodes(info);
 			s = json.state;
 			displayRover(info, s);
 		}
@ -1183,6 +1210,7 @@ function toggleLiveview() {
 }

 function toggleInfo() {
+	if (isNodes) toggleNodes();
 	isInfo = !isInfo;
 	if (isInfo) populateInfo(lastinfo);
 	d.getElementById('info').style.transform = (isInfo) ? "translateY(0px)":"translateY(100%)";
@ -1190,10 +1218,11 @@ function toggleInfo() {
 }

 function toggleNodes() {
+	if (isInfo) toggleInfo();
 	isNodes = !isNodes;
-	if (isNodes) populateNodes(lastinfo);
+	if (isNodes) loadNodes();
 	d.getElementById('nodes').style.transform = (isNodes) ? "translateY(0px)":"translateY(100%)";
-	d.getElementById('buttonNo').className = (isNodes) ? "active":"";
+	d.getElementById('buttonNodes').className = (isNodes) ? "active":"";
 }

 function makeSeg() {
@ -1815,7 +1844,7 @@ function togglePcMode(fromB = false)
 	d.getElementById('buttonPcm').className = (pcMode) ? "active":"";
 	d.getElementById('bot').style.height = (pcMode && !cfg.comp.pcmbot) ? "0":"auto";
 	sCol('--bh', d.getElementById('bot').clientHeight + "px");
-	d.getElementById('buttonNo').style.display = (pcMode) ? "":"none";
+	d.getElementById('buttonNodes').style.display = (pcMode) ? "":"none";
 	_C.style.width = (pcMode)?'100%':'400%';
 	lastw = w;
 }
--- a/wled00/fcn_declare.h
+++ b/wled00/fcn_declare.h
@ -174,7 +174,7 @@ void realtimeLock(uint32_t timeoutMs, byte md = REALTIME_MODE_GENERIC);
 void handleNotifications();
 void setRealtimePixel(uint16_t i, byte r, byte g, byte b, byte w);
 void refreshNodeList();
-void sendSysInfoUDP(uint8_t repeats=1);
+void sendSysInfoUDP();

 //um_manager.cpp
 class Usermod {
--- a/wled00/html_ui.h
+++ b/wled00/html_ui.h
--- a/wled00/json.cpp
+++ b/wled00/json.cpp
@ -484,6 +484,8 @@ void serializeInfo(JsonObject root)
  fs_info["t"] = fsBytesTotal / 1000;
  fs_info[F("pmt")] = presetsModifiedTime;

+  root[F("ndc")] = Nodes.size();
+  
  #ifdef ARDUINO_ARCH_ESP32
  #ifdef WLED_DEBUG
    wifi_info[F("txPower")] = (int) WiFi.getTxPower();
@ -543,26 +545,6 @@ void serializeInfo(JsonObject root)
  root[F("brand")] = "WLED";
  root[F("product")] = F("FOSS");
  root["mac"] = escapedMac;
-
-  JsonArray nodes = root.createNestedArray("nodes");
-  IPAddress ip = Network.localIP();
-  for (NodesMap::iterator it = Nodes.begin(); it != Nodes.end(); ++it)
-  {
-    if (it->second.ip[0] != 0)
-    {
-      bool isThisUnit = it->first == ip[3];
-
-      if (isThisUnit) continue;
-
-      JsonObject node  = nodes.createNestedObject();
-      node[F("name")]  = it->second.nodeName;
-      node[F("type")]  = getNodeTypeDisplayString(it->second.nodeType);
-      node[F("ip")]    = it->second.ip.toString();
-      node[F("age")]   = it->second.age;
-      node[F("build")] = it->second.build;
-    }
-  }
-
 }

 void setPaletteColors(JsonArray json, CRGBPalette16 palette)
@ -727,6 +709,24 @@ void serializePalettes(JsonObject root, AsyncWebServerRequest* request)
  }
 }

+void serializeNodes(JsonObject root)
+{
+  JsonArray nodes = root.createNestedArray("nodes");
+
+  for (NodesMap::iterator it = Nodes.begin(); it != Nodes.end(); ++it)
+  {
+    if (it->second.ip[0] != 0)
+    {
+      JsonObject node = nodes.createNestedObject();
+      node[F("name")] = it->second.nodeName;
+      node[F("type")] = it->second.nodeType;
+      node[F("ip")]   = it->second.ip.toString();
+      node[F("age")]  = it->second.age;
+      node[F("vid")] = it->second.build;
+    }
+  }
+}
+
 void serveJson(AsyncWebServerRequest* request)
 {
  byte subJson = 0;
@ -734,7 +734,8 @@ void serveJson(AsyncWebServerRequest* request)
  if      (url.indexOf("state") > 0) subJson = 1;
  else if (url.indexOf("info")  > 0) subJson = 2;
  else if (url.indexOf("si") > 0)    subJson = 3;
-  else if (url.indexOf("palx") > 0)  subJson = 4;
+  else if (url.indexOf("nodes") > 0) subJson = 4;
+  else if (url.indexOf("palx") > 0)  subJson = 5;
  else if (url.indexOf("live")  > 0) {
    serveLiveLeds(request);
    return;
@ -761,7 +762,9 @@ void serveJson(AsyncWebServerRequest* request)
      serializeState(doc); break;
    case 2: //info
      serializeInfo(doc); break;
-    case 4: //palettes
+    case 4: //node list
+      serializeNodes(doc); break;
+    case 5: //palettes
      serializePalettes(doc, request); break;
    default: //all
      JsonObject state = doc.createNestedObject("state");
--- a/wled00/udp.cpp
+++ b/wled00/udp.cpp
@ -169,9 +169,14 @@ void handleNotifications()

  // WLED nodes info notifications
  if (isSupp && udpIn[0] == 255 && udpIn[1] == 1 && len >= 40) {
+    if (notifier2Udp.remoteIP() == Network.localIP()) return;
+
    uint8_t unit = udpIn[39];
-    Nodes[unit].age = 0; // Create a new element when not present
    NodesMap::iterator it = Nodes.find(unit);
+    if (it == Nodes.end() && Nodes.size() < WLED_MAX_NODES) { // Create a new element when not present
+      Nodes[unit].age = 0;
+      it = Nodes.find(unit);
+    }

    if (it != Nodes.end()) {
      for (byte x = 0; x < 4; x++) {
@ -411,11 +416,9 @@ void refreshNodeList()
 /*********************************************************************************************\
   Broadcast system info to other nodes. (to update node lists)
 \*********************************************************************************************/
-void sendSysInfoUDP(uint8_t repeats)
+void sendSysInfoUDP()
 {
-  if (!udpConnected || !repeats) {
-    return;
-  }
+  if (!udp2Connected) return;

  IPAddress ip = Network.localIP();

@ -430,12 +433,6 @@ void sendSysInfoUDP(uint8_t repeats)
  // 44 bytes total

  // send my info to the world...
-  for (;repeats--;)
-  {
-    /*
-    escapedMac  // mac address
-    */
-
  uint8_t data[44] = {0};
  data[0] = 255;
  data[1] = 1;
@ -461,29 +458,4 @@ void sendSysInfoUDP(uint8_t repeats)
  notifier2Udp.beginPacket(broadcastIP, udpPort2);
  notifier2Udp.write(data, sizeof(data));
  notifier2Udp.endPacket();
-
-    if (repeats) delay(500);
-  }
-
-  Nodes[ip[3]].age = 0; // Create new node when not already present.
-  // store my own info also in the list
-  NodesMap::iterator it = Nodes.find(ip[3]);
-
-  if (it != Nodes.end())
-  {
-    for (byte x = 0; x < 4; x++) {
-      it->second.ip[x] = ip[x];
-    }
-    it->second.age      = 0;
-    it->second.nodeName = serverDescription;
-    #ifdef ESP8266
-    it->second.nodeType = NODE_TYPE_ID_ESP8266;
-    #elif defined(ARDUINO_ARCH_ESP32)
-    it->second.nodeType = NODE_TYPE_ID_ESP32;
-    #else
-    it->second.nodeType = NODE_TYPE_ID_UNDEFINED;
-    #endif
-    it->second.unit     = ip[3];
-    it->second.build    = VERSION; 
-  }
 }
--- a/wled00/wled.h
+++ b/wled00/wled.h
@ -8,7 +8,7 @@
 */

 // version code in format yymmddb (b = daily build)
-#define VERSION 2103091
+#define VERSION 2103100

 //uncomment this if you have a "my_config.h" file you'd like to use
 //#define WLED_USE_MY_CONFIG
@ -117,9 +117,9 @@
 #include "FX.h"
 #include "ir_codes.h"
 #include "const.h"
+#include "NodeStruct.h"
 #include "pin_manager.h"
 #include "bus_manager.h"
-#include "NodeStruct.h"

 #ifndef CLIENT_SSID
  #define CLIENT_SSID DEFAULT_CLIENT_SSID