Merge pull request #794 from ethereum/ide

support indexed event

src/app/execution/eventsDecoder.js

@@ -50,26 +50,49 @@ class EventsDecoder {
 
   _decodeEvents (tx, logs, contractName, compiledContracts, cb) {
     var eventABI = this._eventABI(contractName, compiledContracts)
-    // FIXME: support indexed events
     var events = []
     for (var i in logs) {
       // [address, topics, mem]
       var log = logs[i]
-      var event
-      var decoded
-
-      try {
-        var abi = eventABI[log.topics[0].replace('0x', '')]
-        event = abi.event
-        var types = abi.inputs.map(function (item) {
-          return item.type
-        })
-        decoded = ethJSABI.rawDecode(types, new Buffer(log.data.replace('0x', ''), 'hex'))
-        decoded = ethJSABI.stringify(types, decoded)
-      } catch (e) {
-        decoded = log.data
+      var abi = eventABI[log.topics[0].replace('0x', '')]
+      if (abi) {
+        var event
+        try {
+          var decoded = new Array(abi.inputs.length)
+          event = abi.event
+          var indexed = 1
+          var nonindexed = []
+          // decode indexed param
+          abi.inputs.map(function (item, index) {
+            if (item.indexed) {
+              var encodedData = log.topics[indexed].replace('0x', '')
+              try {
+                decoded[index] = ethJSABI.rawDecode([item.type], new Buffer(encodedData, 'hex'))[0]
+              } catch (e) {
+                decoded[index] = encodedData
+              }
+              indexed++
+            } else {
+              nonindexed.push(item.type)
+            }
+          })
+          // decode non indexed param
+          nonindexed = ethJSABI.rawDecode(nonindexed, new Buffer(log.data.replace('0x', ''), 'hex'))
+          // ordering
+          var j = 0
+          abi.inputs.map(function (item, index) {
+            if (!item.indexed) {
+              decoded[index] = nonindexed[j]
+              j++
+            }
+          })
+        } catch (e) {
+          decoded = log.data
+        }
+        events.push({ event: event, args: decoded })
+      } else {
+        events.push({ data: log.data, topics: log.topics })
       }
-      events.push({ event: event, args: decoded })
     }
     cb(null, { decoded: events, raw: logs })
   }

src/app/execution/txLogger.js

@@ -381,12 +381,16 @@ function createTable (opts) {
     table.appendChild(outputDecoded)
   }
 
+  var stringified = ' - '
+  if (opts.logs.decoded) {
+    stringified = value(opts.logs.decoded)
+  }
   var logs = yo`
     <tr class="${css.tr}">
       <td class="${css.td}"> logs </td>
       <td class="${css.td}">
-      <i class="fa fa-clipboard ${css.clipboardCopy}" aria-hidden="true" onclick=${function () { copy(JSON.stringify(opts.logs.decoded || [], null, '\t')) }} title='Copy Logs to clipboard'></i>
-      <i class="fa fa-clipboard ${css.clipboardCopy}" aria-hidden="true" onclick=${function () { copy(JSON.stringify(opts.logs.raw || '0')) }} title='Copy Raw Logs to clipboard'></i>${JSON.stringify(opts.logs.decoded || [], null, '\t')}</td>
+      <i class="fa fa-clipboard ${css.clipboardCopy}" aria-hidden="true" onclick=${function () { copy(JSON.stringify(stringified, null, '\t')) }} title='Copy Logs to clipboard'></i>
+      <i class="fa fa-clipboard ${css.clipboardCopy}" aria-hidden="true" onclick=${function () { copy(JSON.stringify(opts.logs.raw || '0')) }} title='Copy Raw Logs to clipboard'></i>${JSON.stringify(stringified, null, '\t')}</td>
     </tr class="${css.tr}">
   `
   if (opts.logs) table.appendChild(logs)