DevTools: Initial implementation of line-level CPU profile.

third_party/WebKit/Source/devtools/front_end/sources/UISourceCodeFrame.js

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  * 1. Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *
@@ skipping 23 matching lines @@
 WebInspector.UISourceCodeFrame = function(uiSourceCode)
 {
     this._uiSourceCode = uiSourceCode;
     WebInspector.SourceFrame.call(this, this._uiSourceCode);
     this.textEditor.setAutocompleteDelegate(new WebInspector.SimpleAutocompleteDelegate());
     this._rowMessageBuckets = {};
     this._uiSourceCode.addEventListener(WebInspector.UISourceCode.Events.WorkingCopyChanged, this._onWorkingCopyChanged, this);
     this._uiSourceCode.addEventListener(WebInspector.UISourceCode.Events.WorkingCopyCommitted, this._onWorkingCopyCommitted, this);
     this._uiSourceCode.addEventListener(WebInspector.UISourceCode.Events.MessageAdded, this._onMessageAdded, this);
     this._uiSourceCode.addEventListener(WebInspector.UISourceCode.Events.MessageRemoved, this._onMessageRemoved, this);
+    this._uiSourceCode.addEventListener(WebInspector.UISourceCode.Events.LineMarkerAdded, this._onLineMarkerAdded, this);
+    this._uiSourceCode.addEventListener(WebInspector.UISourceCode.Events.LineMarkerRemoved, this._onLineMarkerRemoved, this);
     this._updateStyle();
 
     this._errorPopoverHelper = new WebInspector.PopoverHelper(this.element, this._getErrorAnchor.bind(this), this._showErrorPopover.bind(this));
     this._errorPopoverHelper.setTimeout(100, 100);
 }
 
 WebInspector.UISourceCodeFrame.prototype = {
     /**
      * @return {!WebInspector.UISourceCode}
      */
@@ skipping 57 matching lines @@
     },
 
     /**
      * @override
      */
     onTextEditorContentLoaded: function()
     {
         WebInspector.SourceFrame.prototype.onTextEditorContentLoaded.call(this);
         for (var message of this._uiSourceCode.messages())
             this._addMessageToSource(message);
+        this._populateLineMarkers();
     },
 
     /**
      * @override
      * @param {!WebInspector.TextRange} oldRange
      * @param {!WebInspector.TextRange} newRange
      */
     onTextChanged: function(oldRange, newRange)
     {
         WebInspector.SourceFrame.prototype.onTextChanged.call(this, oldRange, newRange);
@@ skipping 192 matching lines @@
     },
 
     _updateBucketDecorations: function()
     {
         for (var line in this._rowMessageBuckets) {
             var bucket = this._rowMessageBuckets[line];
             bucket._updateDecoration();
         }
     },
 
+    /**
+     * @param {!WebInspector.Event} event
+     */
+    _onLineMarkerAdded: function(event)
+    {
+        var marker = /** @type {!WebInspector.UISourceCode.LineMarker} */ (event.data);
+        var decorator = WebInspector.UISourceCodeFrame._lineMarkerDecorator(marker.type());
+        if (!decorator)
+            return;
+        this._textEditor.setGutterMarker(marker.line(), marker.type(), decorator.decorate(marker.data()));
+    },
+
+    /**
+     * @param {!WebInspector.Event} event
+     */
+    _onLineMarkerRemoved: function(event)
+    {
+        var marker = /** @type {!WebInspector.UISourceCode.LineMarker} */ (event.data);
+        this._textEditor.setGutterMarker(marker.line(), marker.type(), null);
+    },
+
+    _populateLineMarkers: function()
+    {
+        for (var marker of this.uiSourceCode().lineMarkers()) {
+            var decorator = WebInspector.UISourceCodeFrame._lineMarkerDecorator(marker.type());
+            if (!decorator)
+                continue;
+            this._textEditor.setGutterMarker(marker.line(), marker.type(), decorator.decorate(marker.data()));
+        }
+    },
+
     __proto__: WebInspector.SourceFrame.prototype
 }
 
 WebInspector.UISourceCodeFrame._iconClassPerLevel = {};
 WebInspector.UISourceCodeFrame._iconClassPerLevel[WebInspector.UISourceCode.Message.Level.Error] = "error-icon";
 WebInspector.UISourceCodeFrame._iconClassPerLevel[WebInspector.UISourceCode.Message.Level.Warning] = "warning-icon";
 
 WebInspector.UISourceCodeFrame._lineClassPerLevel = {};
 WebInspector.UISourceCodeFrame._lineClassPerLevel[WebInspector.UISourceCode.Message.Level.Error] = "text-editor-line-with-error";
 WebInspector.UISourceCodeFrame._lineClassPerLevel[WebInspector.UISourceCode.Message.Level.Warning] = "text-editor-line-with-warning";
@@ skipping 204 matching lines @@
 
 /**
  * @param {!WebInspector.UISourceCode.Message} a
  * @param {!WebInspector.UISourceCode.Message} b
  * @return {number}
  */
 WebInspector.UISourceCode.Message.messageLevelComparator = function(a, b)
 {
     return WebInspector.UISourceCode.Message._messageLevelPriority[a.level()] - WebInspector.UISourceCode.Message._messageLevelPriority[b.level()];
 }
+
+/**
+ * @param  {string} type
+ * @return {?WebInspector.UISourceCodeFrame.Decorator}
+ */
+WebInspector.UISourceCodeFrame._lineMarkerDecorator = function(type)
+{
+    if (!WebInspector.UISourceCodeFrame._lineMarkerDecorator._decorators) {
+        WebInspector.UISourceCodeFrame._lineMarkerDecorator._decorators = new Map();
+        WebInspector.UISourceCodeFrame._lineMarkerDecorator._decorators.set("performance", new WebInspector.UISourceCodeFrame.PerformanceDecorator());

[pfeldman, 2016/03/03 02:38:42]

this should move to the profiler module.

[alph, 2016/03/05 00:37:08]

Done.

+    }
+    return WebInspector.UISourceCodeFrame._lineMarkerDecorator._decorators.get(type) || null;
+}
+
+/**
+ * @interface
+ */
+WebInspector.UISourceCodeFrame.Decorator = function() { }
+
+WebInspector.UISourceCodeFrame.Decorator.prototype = {
+    /**
+     * @param {?} data
+     * @return {!Element}
+     */
+    decorate: function(data) { }
+}
+
+/**
+ * @constructor
+ * @implements {WebInspector.UISourceCodeFrame.Decorator}
+ */
+WebInspector.UISourceCodeFrame.PerformanceDecorator = function()
+{
+}
+
+WebInspector.UISourceCodeFrame.PerformanceDecorator.prototype = {
+    /**
+     * @override
+     * @param {?} data
+     * @return {!Element}
+     */
+    decorate: function(data)
+    {
+        var info = /** @type {!{text: string, intensity: number}} */ (data);
+        var element = createElementWithClass("div", "text-editor-performance-info");
+        element.textContent = info.text;
+        element.style.backgroundColor = `rgba(255, 0, 0, ${info.intensity.toFixed(3)})`;
+        return element;
+    }
+}