From 0d1f3f20d5ea774c4068e07c4121943712edcfff Mon Sep 17 00:00:00 2001
From: Jon Atkins <github@jonatkins.com>
Date: Tue, 16 Dec 2014 04:34:32 +0000
Subject: [PATCH] draw-tools plugin: support import from stock URL pls=
 parameter (as well as the existing json format)

---
 plugins/draw-tools.user.js | 51 +++++++++++++++++++++++++++++++++-----
 1 file changed, 45 insertions(+), 6 deletions(-)

diff --git a/plugins/draw-tools.user.js b/plugins/draw-tools.user.js
index 01fed201..f7b486b4 100644
--- a/plugins/draw-tools.user.js
+++ b/plugins/draw-tools.user.js
@@ -425,14 +425,53 @@ window.plugin.drawTools.optExport = function() {
 }
 
 window.plugin.drawTools.optPaste = function() {
-  var promptAction = prompt('Press CTRL+V to paste it.', '');
+  var promptAction = prompt('Press CTRL+V to paste (draw-tools data or stock intel URL).', '');
   if(promptAction !== null && promptAction !== '') {
     try {
-      var data = JSON.parse(promptAction);
-      window.plugin.drawTools.drawnItems.clearLayers();
-      window.plugin.drawTools.import(data);
-      console.log('DRAWTOOLS: reset and imported drawn items');
-      window.plugin.drawTools.optAlert('Import Successful.');
+      // first see if it looks like a URL-format stock intel link, and if so, try and parse out any stock drawn items
+      // from the pls parameter
+      if (promptAction.match(new RegExp("^(https?://)?(www\\.)ingress\\.com/intel.*[?&]pls="))) {
+        //looks like a ingress URL that has drawn items...
+        var items = promptAction.split(/[?&]/);
+        var foundAt = -1;
+        for (var i=0; i<items.length; i++) {
+          if (items[i].substr(0,4) == "pls=") {
+            foundAt = i;
+          }
+        }
+
+        if (foundAt == -1) throw ("No drawn items found in intel URL");
+
+        var newLines = [];
+        var linesStr = items[foundAt].substr(4).split('_');
+        for (var i=0; i<linesStr.length; i++) {
+          var floats = linesStr[i].split(',').map(Number);
+          if (floats.length != 4) throw("URL item not a set of four floats");
+          for (var j=0; j<floats.length; j++) {
+            if (isNaN(floats[j])) throw("URL item had invalid number");
+          }
+          var layer = L.geodesicPolyline([[floats[0],floats[1]],[floats[2],floats[3]]], window.plugin.drawTools.lineOptions);
+          newLines.push(layer);
+        }
+
+        // all parsed OK - clear and insert
+        window.plugin.drawTools.drawnItems.clearLayers();
+        for (var i=0; i<newLines.length; i++) {
+          window.plugin.drawTools.drawnItems.addLayer(newLines[i]);
+        }
+        runHooks('pluginDrawTools', {event: 'import'});
+
+        console.log('DRAWTOOLS: reset and imported drawn items from stock URL');
+        window.plugin.drawTools.optAlert('Import Successful.');
+
+
+      } else {
+        var data = JSON.parse(promptAction);
+        window.plugin.drawTools.drawnItems.clearLayers();
+        window.plugin.drawTools.import(data);
+        console.log('DRAWTOOLS: reset and imported drawn items');
+        window.plugin.drawTools.optAlert('Import Successful.');
+      }
 
       // to write back the data to localStorage
       window.plugin.drawTools.save();