allow multiple highlight per plugin

src/app/editor/SourceHighlighters.js

@@ -12,16 +12,33 @@ class SourceHighlighters {
 
   highlight (position, filePath, hexColor, from) {
     try {
-      if (!this.highlighters[from]) this.highlighters[from] = new SourceHighlighter()
-      this.highlighters[from].currentSourceLocation(null)
-      this.highlighters[from].currentSourceLocationFromfileName(position, filePath, hexColor)
+      if (!this.highlighters[from]) this.highlighters[from] = []
+      const sourceHighlight = new SourceHighlighter()
+      sourceHighlight.currentSourceLocationFromfileName(position, filePath, hexColor)
+      this.highlighters[from].push(sourceHighlight)
     } catch (e) {
       throw e
     }
   }
 
   discardHighlight (from) {
-    if (this.highlighters[from]) this.highlighters[from].currentSourceLocation(null)
+    if (this.highlighters[from]) {
+      for (const index in this.highlighters[from]) this.highlighters[from][index].currentSourceLocation(null)
+    }
+    this.highlighters[from] = []
+  }
+
+  discardHighlightAt (line, filePath, from) {
+    if (this.highlighters[from]) {
+      for (const index in this.highlighters[from]) {
+        const highlight = this.highlighters[from][index]
+        if (highlight.source === filePath &&
+            (highlight.position.start.line === line || highlight.position.end.line === line)) {
+          highlight.currentSourceLocation(null)
+          this.highlighters[from].splice(index, 1)
+        }
+      }
+    }
   }
 }
 

src/app/editor/editor.js

@@ -46,7 +46,7 @@ const profile = {
   name: 'editor',
   description: 'service - editor',
   version: packageJson.version,
-  methods: ['highlight', 'discardHighlight', 'clearAnnotations', 'addAnnotation']
+  methods: ['highlight', 'discardHighlight', 'discardHighlightAt', 'clearAnnotations', 'addAnnotation']
 }
 
 class Editor extends Plugin {
@@ -202,6 +202,16 @@ class Editor extends Plugin {
     this.sourceHighlighters.discardHighlight(from)
   }
 
+  discardHighlightAt (line, filePath) {
+    const { from } = this.currentRequest
+    this.sourceHighlighters.discardHighlightAt(line, filePath, from)
+  }
+
+  currentHighlights () {
+    const { from } = this.currentRequest
+    return this.sourceHighlighters.currentHighlights(from)
+  }
+
   setTheme (type) {
     this.editor.setTheme('ace/theme/' + this._themes[type])
   }

src/app/editor/sourceHighlighter.js

@@ -13,6 +13,7 @@ class SourceHighlighter {
       fileManager: this._components.registry.get('filemanager').api,
       compilerArtefacts: this._components.registry.get('compilersartefacts').api
     }
+    this.position = null
     this.statementMarker = null
     this.fullLineMarker = null
     this.source = null
@@ -61,7 +62,7 @@ class SourceHighlighter {
 
       this.statementMarker = this._deps.editor.addMarker(lineColumnPos, this.source, css.highlightcode.className + ' ' + css.customBackgroundColor.className)
       this._deps.editor.scrollToLine(lineColumnPos.start.line, true, true, function () {})
-
+      this.position = lineColumnPos
       if (lineColumnPos.start.line === lineColumnPos.end.line) {
         this.fullLineMarker = this._deps.editor.addMarker({
           start: {

test-browser/tests/editor.test.js

@@ -70,6 +70,12 @@ module.exports = {
     .checkElementStyle('.ace_comment.ace_doc', 'color', aceThemes.dark.comment)
     .checkElementStyle('.ace_function', 'color', aceThemes.dark.function)
     .checkElementStyle('.ace_variable', 'color', aceThemes.dark.variable)
+  },
+
+  'Should highlight source code': function (browser) {
+    browser.addFile('browser/sourcehighlight.js', sourcehighlightScript)
+    .switchFile('browser/sourcehighlight.js')
+    .executeScript('remix.exeCurrent()')
     .end()
   },
 
@@ -90,3 +96,47 @@ var aceThemes = {
     variable: 'rgb(153, 119, 68)'
   }
 }
+
+const sourcehighlightScript = `
+(async () => {
+  try {
+      const pos = {
+          start: {
+              line: 32,
+              column: 3
+          },
+          end: {
+              line: 32,
+              column: 20
+          }
+      }
+      await remix.call('editor', 'highlight', pos, 'browser/3_Ballot.sol')
+      
+       const pos2 = {
+          start: {
+              line: 40,
+              column: 3
+          },
+          end: {
+              line: 40,
+              column: 20
+          }
+      }
+      await remix.call('editor', 'highlight', pos2, 'browser/3_Ballot.sol')
+      
+       const pos3 = {
+          start: {
+              line: 50,
+              column: 3
+          },
+          end: {
+              line: 50,
+              column: 20
+          }
+      }
+      await remix.call('editor', 'highlight', pos3, 'browser/3_Ballot.sol')
+  } catch (e) {
+      console.log(e.message)
+  }
+})()
+`