DevTools: reformat front-end code to match chromium style.

third_party/WebKit/Source/devtools/front_end/components/ExecutionContextSelector.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
-
 /**
- * @constructor
  * @implements {WebInspector.TargetManager.Observer}
- * @param {!WebInspector.TargetManager} targetManager
- * @param {!WebInspector.Context} context
+ * @unrestricted
  */
-WebInspector.ExecutionContextSelector = function(targetManager, context)
-{
+WebInspector.ExecutionContextSelector = class {
+  /**
+   * @param {!WebInspector.TargetManager} targetManager
+   * @param {!WebInspector.Context} context
+   */
+  constructor(targetManager, context) {
     targetManager.observeTargets(this, WebInspector.Target.Capability.JS);
     context.addFlavorChangeListener(WebInspector.ExecutionContext, this._executionContextChanged, this);
     context.addFlavorChangeListener(WebInspector.Target, this._targetChanged, this);
 
-    targetManager.addModelListener(WebInspector.RuntimeModel, WebInspector.RuntimeModel.Events.ExecutionContextCreated, this._onExecutionContextCreated, this);
-    targetManager.addModelListener(WebInspector.RuntimeModel, WebInspector.RuntimeModel.Events.ExecutionContextDestroyed, this._onExecutionContextDestroyed, this);
-    targetManager.addModelListener(WebInspector.RuntimeModel, WebInspector.RuntimeModel.Events.ExecutionContextOrderChanged, this._onExecutionContextOrderChanged, this);
+    targetManager.addModelListener(
+        WebInspector.RuntimeModel, WebInspector.RuntimeModel.Events.ExecutionContextCreated,
+        this._onExecutionContextCreated, this);
+    targetManager.addModelListener(
+        WebInspector.RuntimeModel, WebInspector.RuntimeModel.Events.ExecutionContextDestroyed,
+        this._onExecutionContextDestroyed, this);
+    targetManager.addModelListener(
+        WebInspector.RuntimeModel, WebInspector.RuntimeModel.Events.ExecutionContextOrderChanged,
+        this._onExecutionContextOrderChanged, this);
     this._targetManager = targetManager;
     this._context = context;
-};
-
-WebInspector.ExecutionContextSelector.prototype = {
-
-    /**
-     * @override
-     * @param {!WebInspector.Target} target
-     */
-    targetAdded: function(target)
-    {
-        // Defer selecting default target since we need all clients to get their
-        // targetAdded notifications first.
-        setImmediate(deferred.bind(this));
-
-        /**
-         * @this {WebInspector.ExecutionContextSelector}
-         */
-        function deferred()
-        {
-            // We always want the second context for the service worker targets.
-            if (!this._context.flavor(WebInspector.Target))
-                this._context.setFlavor(WebInspector.Target, target);
-        }
-    },
-
-    /**
-     * @override
-     * @param {!WebInspector.Target} target
-     */
-    targetRemoved: function(target)
-    {
-        var currentExecutionContext = this._context.flavor(WebInspector.ExecutionContext);
-        if (currentExecutionContext && currentExecutionContext.target() === target)
-            this._currentExecutionContextGone();
-
-        var targets = this._targetManager.targets(WebInspector.Target.Capability.JS);
-        if (this._context.flavor(WebInspector.Target) === target && targets.length)
-            this._context.setFlavor(WebInspector.Target, targets[0]);
-    },
-
-    /**
-     * @param {!WebInspector.Event} event
-     */
-    _executionContextChanged: function(event)
-    {
-        var newContext = /** @type {?WebInspector.ExecutionContext} */ (event.data);
-        if (newContext) {
-            this._context.setFlavor(WebInspector.Target, newContext.target());
-            if (!this._ignoreContextChanged)
-                this._lastSelectedContextId = this._contextPersistentId(newContext);
-        }
-    },
-
-    /**
-     * @param {!WebInspector.ExecutionContext} executionContext
-     * @return {string}
-     */
-    _contextPersistentId: function(executionContext)
-    {
-        return executionContext.isDefault ? executionContext.target().name() + ":" + executionContext.frameId : "";
-    },
-
-    /**
-     * @param {!WebInspector.Event} event
-     */
-    _targetChanged: function(event)
-    {
-        var newTarget = /** @type {?WebInspector.Target} */(event.data);
-        var currentContext = this._context.flavor(WebInspector.ExecutionContext);
-
-        if (!newTarget || (currentContext && currentContext.target() === newTarget))
-            return;
-
-        var executionContexts = newTarget.runtimeModel.executionContexts();
-        if (!executionContexts.length)
-            return;
-
-        var newContext = null;
-        for (var i = 0; i < executionContexts.length && !newContext; ++i) {
-            if (this._shouldSwitchToContext(executionContexts[i]))
-                newContext = executionContexts[i];
-        }
-        for (var i = 0; i < executionContexts.length && !newContext; ++i) {
-            if (this._isDefaultContext(executionContexts[i]))
-                newContext = executionContexts[i];
-        }
-        this._ignoreContextChanged = true;
-        this._context.setFlavor(WebInspector.ExecutionContext, newContext || executionContexts[0]);
-        this._ignoreContextChanged = false;
-    },
-
-    /**
-     * @param {!WebInspector.ExecutionContext} executionContext
-     * @return {boolean}
-     */
-    _shouldSwitchToContext: function(executionContext)
-    {
-        if (this._lastSelectedContextId && this._lastSelectedContextId === this._contextPersistentId(executionContext))
-            return true;
-        if (!this._lastSelectedContextId && this._isDefaultContext(executionContext))
-            return true;
-        return false;
-    },
-
-    /**
-     * @param {!WebInspector.ExecutionContext} executionContext
-     * @return {boolean}
-     */
-    _isDefaultContext: function(executionContext)
-    {
-        if (!executionContext.isDefault || !executionContext.frameId)
-            return false;
-        if (executionContext.target().parentTarget())
-            return false;
-        var resourceTreeModel = WebInspector.ResourceTreeModel.fromTarget(executionContext.target());
-        var frame = resourceTreeModel && resourceTreeModel.frameForId(executionContext.frameId);
-        if (frame && frame.isMainFrame())
-            return true;
-        return false;
-    },
-
-    /**
-     * @param {!WebInspector.Event} event
-     */
-    _onExecutionContextCreated: function(event)
-    {
-        this._switchContextIfNecessary(/** @type {!WebInspector.ExecutionContext} */ (event.data));
-    },
-
-    /**
-     * @param {!WebInspector.Event} event
-     */
-    _onExecutionContextDestroyed: function(event)
-    {
-        var executionContext = /** @type {!WebInspector.ExecutionContext}*/ (event.data);
-        if (this._context.flavor(WebInspector.ExecutionContext) === executionContext)
-            this._currentExecutionContextGone();
-    },
-
-    /**
-     * @param {!WebInspector.Event} event
-     */
-    _onExecutionContextOrderChanged: function(event)
-    {
-        var runtimeModel = /** @type {!WebInspector.RuntimeModel} */ (event.data);
-        var executionContexts = runtimeModel.executionContexts();
-        for (var i = 0; i < executionContexts.length; i++) {
-            if (this._switchContextIfNecessary(executionContexts[i]))
-                break;
-        }
-    },
-
-    /**
-     * @param {!WebInspector.ExecutionContext} executionContext
-     * @return {boolean}
-     */
-    _switchContextIfNecessary: function(executionContext)
-    {
-        if (!this._context.flavor(WebInspector.ExecutionContext) || this._shouldSwitchToContext(executionContext)) {
-            this._ignoreContextChanged = true;
-            this._context.setFlavor(WebInspector.ExecutionContext, executionContext);
-            this._ignoreContextChanged = false;
-            return true;
-        }
-        return false;
-    },
-
-    _currentExecutionContextGone: function()
-    {
-        var targets = this._targetManager.targets(WebInspector.Target.Capability.JS);
-        var newContext = null;
-        for (var i = 0; i < targets.length && !newContext; ++i) {
-            var executionContexts = targets[i].runtimeModel.executionContexts();
-            for (var executionContext of executionContexts) {
-                if (this._isDefaultContext(executionContext)) {
-                    newContext = executionContext;
-                    break;
-                }
-            }
-        }
-        if (!newContext) {
-            for (var i = 0; i < targets.length && !newContext; ++i) {
-                var executionContexts = targets[i].runtimeModel.executionContexts();
-                if (executionContexts.length) {
-                    newContext = executionContexts[0];
-                    break;
-                }
-            }
-        }
-        this._ignoreContextChanged = true;
-        this._context.setFlavor(WebInspector.ExecutionContext, newContext);
-        this._ignoreContextChanged = false;
-    }
-};
-
-/**
- * @param {!Element} proxyElement
- * @param {!Range} wordRange
- * @param {boolean} force
- * @param {function(!Array.<string>, number=)} completionsReadyCallback
- */
-WebInspector.ExecutionContextSelector.completionsForTextPromptInCurrentContext = function(proxyElement, wordRange, force, completionsReadyCallback)
-{
+  }
+
+  /**
+   * @param {!Element} proxyElement
+   * @param {!Range} wordRange
+   * @param {boolean} force
+   * @param {function(!Array.<string>, number=)} completionsReadyCallback
+   */
+  static completionsForTextPromptInCurrentContext(proxyElement, wordRange, force, completionsReadyCallback) {
     var expressionRange = wordRange.cloneRange();
     expressionRange.collapse(true);
     expressionRange.setStartBefore(proxyElement);
-    WebInspector.ExecutionContextSelector.completionsForTextInCurrentContext(expressionRange.toString(), wordRange.toString(), force).then(completionsReadyCallback);
-};
-/**
- * @param {string} text
- * @param {string} completionsPrefix
- * @param {boolean=} force
- * @return {!Promise<!Array<string>>}
- */
-WebInspector.ExecutionContextSelector.completionsForTextInCurrentContext = function(text, completionsPrefix, force)
-{
+    WebInspector.ExecutionContextSelector
+        .completionsForTextInCurrentContext(expressionRange.toString(), wordRange.toString(), force)
+        .then(completionsReadyCallback);
+  }
+
+  /**
+   * @param {string} text
+   * @param {string} completionsPrefix
+   * @param {boolean=} force
+   * @return {!Promise<!Array<string>>}
+   */
+  static completionsForTextInCurrentContext(text, completionsPrefix, force) {
     var executionContext = WebInspector.context.flavor(WebInspector.ExecutionContext);
     if (!executionContext)
-        return Promise.resolve([]);
+      return Promise.resolve([]);
     var index;
-    var stopChars = new Set(" =:({;,!+-*/&|^<>`".split(""));
+    var stopChars = new Set(' =:({;,!+-*/&|^<>`'.split(''));
     for (index = text.length - 1; index >= 0; index--) {
-        // Pass less stop characters to rangeOfWord so the range will be a more complete expression.
-        if (stopChars.has(text.charAt(index)))
-            break;
+      // Pass less stop characters to rangeOfWord so the range will be a more complete expression.
+      if (stopChars.has(text.charAt(index)))
+        break;
     }
     var clippedExpression = text.substring(index + 1);
     var bracketCount = 0;
 
     index = clippedExpression.length - 1;
     while (index >= 0) {
-        var character = clippedExpression.charAt(index);
-        if (character === "]")
-            bracketCount++;
-        // Allow an open bracket at the end for property completion.
-        if (character === "[" && index < clippedExpression.length - 1) {
-            bracketCount--;
-            if (bracketCount < 0)
-                break;
+      var character = clippedExpression.charAt(index);
+      if (character === ']')
+        bracketCount++;
+      // Allow an open bracket at the end for property completion.
+      if (character === '[' && index < clippedExpression.length - 1) {
+        bracketCount--;
+        if (bracketCount < 0)
+          break;
+      }
+      index--;
+    }
+    clippedExpression = clippedExpression.substring(index + 1);
+
+    return executionContext.completionsForExpression(clippedExpression, completionsPrefix, force);
+  }
+
+  /**
+   * @override
+   * @param {!WebInspector.Target} target
+   */
+  targetAdded(target) {
+    // Defer selecting default target since we need all clients to get their
+    // targetAdded notifications first.
+    setImmediate(deferred.bind(this));
+
+    /**
+     * @this {WebInspector.ExecutionContextSelector}
+     */
+    function deferred() {
+      // We always want the second context for the service worker targets.
+      if (!this._context.flavor(WebInspector.Target))
+        this._context.setFlavor(WebInspector.Target, target);
+    }
+  }
+
+  /**
+   * @override
+   * @param {!WebInspector.Target} target
+   */
+  targetRemoved(target) {
+    var currentExecutionContext = this._context.flavor(WebInspector.ExecutionContext);
+    if (currentExecutionContext && currentExecutionContext.target() === target)
+      this._currentExecutionContextGone();
+
+    var targets = this._targetManager.targets(WebInspector.Target.Capability.JS);
+    if (this._context.flavor(WebInspector.Target) === target && targets.length)
+      this._context.setFlavor(WebInspector.Target, targets[0]);
+  }
+
+  /**
+   * @param {!WebInspector.Event} event
+   */
+  _executionContextChanged(event) {
+    var newContext = /** @type {?WebInspector.ExecutionContext} */ (event.data);
+    if (newContext) {
+      this._context.setFlavor(WebInspector.Target, newContext.target());
+      if (!this._ignoreContextChanged)
+        this._lastSelectedContextId = this._contextPersistentId(newContext);
+    }
+  }
+
+  /**
+   * @param {!WebInspector.ExecutionContext} executionContext
+   * @return {string}
+   */
+  _contextPersistentId(executionContext) {
+    return executionContext.isDefault ? executionContext.target().name() + ':' + executionContext.frameId : '';
+  }
+
+  /**
+   * @param {!WebInspector.Event} event
+   */
+  _targetChanged(event) {
+    var newTarget = /** @type {?WebInspector.Target} */ (event.data);
+    var currentContext = this._context.flavor(WebInspector.ExecutionContext);
+
+    if (!newTarget || (currentContext && currentContext.target() === newTarget))
+      return;
+
+    var executionContexts = newTarget.runtimeModel.executionContexts();
+    if (!executionContexts.length)
+      return;
+
+    var newContext = null;
+    for (var i = 0; i < executionContexts.length && !newContext; ++i) {
+      if (this._shouldSwitchToContext(executionContexts[i]))
+        newContext = executionContexts[i];
+    }
+    for (var i = 0; i < executionContexts.length && !newContext; ++i) {
+      if (this._isDefaultContext(executionContexts[i]))
+        newContext = executionContexts[i];
+    }
+    this._ignoreContextChanged = true;
+    this._context.setFlavor(WebInspector.ExecutionContext, newContext || executionContexts[0]);
+    this._ignoreContextChanged = false;
+  }
+
+  /**
+   * @param {!WebInspector.ExecutionContext} executionContext
+   * @return {boolean}
+   */
+  _shouldSwitchToContext(executionContext) {
+    if (this._lastSelectedContextId && this._lastSelectedContextId === this._contextPersistentId(executionContext))
+      return true;
+    if (!this._lastSelectedContextId && this._isDefaultContext(executionContext))
+      return true;
+    return false;
+  }
+
+  /**
+   * @param {!WebInspector.ExecutionContext} executionContext
+   * @return {boolean}
+   */
+  _isDefaultContext(executionContext) {
+    if (!executionContext.isDefault || !executionContext.frameId)
+      return false;
+    if (executionContext.target().parentTarget())
+      return false;
+    var resourceTreeModel = WebInspector.ResourceTreeModel.fromTarget(executionContext.target());
+    var frame = resourceTreeModel && resourceTreeModel.frameForId(executionContext.frameId);
+    if (frame && frame.isMainFrame())
+      return true;
+    return false;
+  }
+
+  /**
+   * @param {!WebInspector.Event} event
+   */
+  _onExecutionContextCreated(event) {
+    this._switchContextIfNecessary(/** @type {!WebInspector.ExecutionContext} */ (event.data));
+  }
+
+  /**
+   * @param {!WebInspector.Event} event
+   */
+  _onExecutionContextDestroyed(event) {
+    var executionContext = /** @type {!WebInspector.ExecutionContext}*/ (event.data);
+    if (this._context.flavor(WebInspector.ExecutionContext) === executionContext)
+      this._currentExecutionContextGone();
+  }
+
+  /**
+   * @param {!WebInspector.Event} event
+   */
+  _onExecutionContextOrderChanged(event) {
+    var runtimeModel = /** @type {!WebInspector.RuntimeModel} */ (event.data);
+    var executionContexts = runtimeModel.executionContexts();
+    for (var i = 0; i < executionContexts.length; i++) {
+      if (this._switchContextIfNecessary(executionContexts[i]))
+        break;
+    }
+  }
+
+  /**
+   * @param {!WebInspector.ExecutionContext} executionContext
+   * @return {boolean}
+   */
+  _switchContextIfNecessary(executionContext) {
+    if (!this._context.flavor(WebInspector.ExecutionContext) || this._shouldSwitchToContext(executionContext)) {
+      this._ignoreContextChanged = true;
+      this._context.setFlavor(WebInspector.ExecutionContext, executionContext);
+      this._ignoreContextChanged = false;
+      return true;
+    }
+    return false;
+  }
+
+  _currentExecutionContextGone() {
+    var targets = this._targetManager.targets(WebInspector.Target.Capability.JS);
+    var newContext = null;
+    for (var i = 0; i < targets.length && !newContext; ++i) {
+      var executionContexts = targets[i].runtimeModel.executionContexts();
+      for (var executionContext of executionContexts) {
+        if (this._isDefaultContext(executionContext)) {
+          newContext = executionContext;
+          break;
         }
-        index--;
-    }
-    clippedExpression = clippedExpression.substring(index + 1);
-
-    return executionContext.completionsForExpression(clippedExpression, completionsPrefix, force);
+      }
+    }
+    if (!newContext) {
+      for (var i = 0; i < targets.length && !newContext; ++i) {
+        var executionContexts = targets[i].runtimeModel.executionContexts();
+        if (executionContexts.length) {
+          newContext = executionContexts[0];
+          break;
+        }
+      }
+    }
+    this._ignoreContextChanged = true;
+    this._context.setFlavor(WebInspector.ExecutionContext, newContext);
+    this._ignoreContextChanged = false;
+  }
 };
+
+