Add dedicated Worldmap mode

better handling of other types

utility/exif/94-exif.html

@@ -1,6 +1,13 @@
 
 <script type="text/html" data-template-name="exif">
     <div class="form-row">
+        <label for="node-input-mode"><i class="fa fa-dot-circle-o"></i> Mode</label>
+        <select style="width:70%" id="node-input-mode">
+            <option value="normal">Standard node</option>
+            <option value="worldmap">Use with Worldmap-in node</option>
+        </select>
+    </div>
+    <div class="form-row" id="node-exif-prop-select">
         <label for="node-input-property"><i class="fa fa-ellipsis-h"></i> <span data-i18n="node-red:common.label.property"></span></label>
         <input type="text" id="node-input-property" style="width:70%;"/>
     </div>
@@ -17,6 +24,8 @@
     <p>The node then adds location data as <code>msg.location</code>, should the Exif data carry this information.
     This also includes an icon, bearing and field of view arc suitable for use in the worldmap node.
     The selected input property retains the original, unmodified image buffer.</p>
+    <p>If configured to use the worldmap in node then the existing image payload will be replaced by the location
+    object so that it can be fed back to the map directly.</p>
 </script>
 
 <script type="text/javascript">
@@ -25,6 +34,7 @@
         color:"#f1c2f0",
         defaults: {
             name: {value:""},
+            mode: {value:"normal"},
             property: {value:"payload",required:true}
         },
         inputs:1,
@@ -39,6 +49,13 @@
         oneditprepare: function() {
             if (this.property === undefined) { $("#node-input-property").val("payload"); }
             $("#node-input-property").typedInput({default:'msg',types:['msg']});
+
+            $("#node-input-mode").change(function() {
+                if ($("#node-input-mode").val() === "worldmap") {
+                    $("#node-exif-prop-select").hide();
+                }
+                else { $("#node-exif-prop-select").show(); }
+            });
         }
     });
 </script>

utility/exif/94-exif.js

@@ -11,7 +11,9 @@ module.exports = function(RED) {
 
     function ExifNode(n) {
         RED.nodes.createNode(this,n);
-        this.property = n.property || "payload";
+        this.mode = n.mode || "normal";
+        if (this.mode === "worldmap") { this.property = "payload.content"; }
+        else { this.property = n.property || "payload"; }
         var node = this;
 
         /***
@@ -72,10 +74,12 @@ module.exports = function(RED) {
             else if (msg.hasOwnProperty("filename")) { na = msg.filename.split('/').pop(); }
             else { na = msg.exif.image.Make+"_"+msg.exif.image.ModifyDate; }
             msg.location.name = na;
+            msg.location.layer = "Images";
             msg.location.popup = '<img width="280" src="data:image/jpeg;base64,'+val.toString("base64")+'"/>'
         }
 
         this.on("input", function(msg) {
+            if (node.mode === "worldmap" && (msg.payload.action !== "file" || msg.payload.type.indexOf("image") === -1)) { return; } // in case worldmap-in not filtered.
             try {
                 var value = RED.util.getMessageProperty(msg,node.property);
                 if (value !== undefined) {
@@ -87,7 +91,13 @@ module.exports = function(RED) {
                     if (Buffer.isBuffer(value)) { // or a proper jpg buffer
                         new ExifImage({ image:value }, function (error, exifData) {
                             if (error) {
-                                node.log(error.toString());
+                                if (node.mode !== "worldmap") {
+                                    node.log(error.toString());
+                                }
+                                else {
+                                    msg.location = {name:msg.payload.name, lat:msg.payload.lat, lon:msg.payload.lon, layer:"Images", icon:"fa-camera", draggable:true};
+                                    msg.location.popup = '<img width="280" src="data:image\/png;base64,'+msg.payload.content.toString('base64')+'"/><br/>';
+                                }
                             }
                             else {
                                 if (exifData) {
@@ -101,6 +111,10 @@ module.exports = function(RED) {
                                     node.warn("The incoming image did not contain any Exif data, nothing to do.");
                                 }
                             }
+                            if (node.mode === "worldmap") {
+                                msg.payload = msg.location;
+                                delete msg.location;
+                            }
                             node.send(msg);
                         });
                     }

utility/exif/package.json

@@ -1,6 +1,6 @@
 {
     "name": "node-red-node-exif",
-    "version": "0.1.0",
+    "version": "0.2.0",
     "description": "A Node-RED node that extracts Exif information from JPEG image buffers.",
     "dependencies": {
         "exif": "^0.6.0"