DevTools: introduce API for the Common.FormatterWorkerPool.

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

 /*
  * Copyright (c) 2012 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.
  */
 
 /**
  * @unrestricted
  */
 Sources.JavaScriptOutlineDialog = class extends UI.FilteredListWidget.Delegate {
   /**
    * @param {!Workspace.UISourceCode} uiSourceCode
    * @param {function(number, number)} selectItemCallback
    */
   constructor(uiSourceCode, selectItemCallback) {
     super([]);
 
     this._functionItems = [];
     this._selectItemCallback = selectItemCallback;
-    Common.formatterWorkerPool.runChunkedTask(
-        'javaScriptOutline', {content: uiSourceCode.workingCopy()}, this._didBuildOutlineChunk.bind(this));
+    Common.formatterWorkerPool.javaScriptOutline(uiSourceCode.workingCopy(), this._didBuildOutlineChunk.bind(this));
   }
 
   /**
    * @param {!Workspace.UISourceCode} uiSourceCode
    * @param {function(number, number)} selectItemCallback
    */
   static show(uiSourceCode, selectItemCallback) {
     Sources.JavaScriptOutlineDialog._instanceForTests =
         new Sources.JavaScriptOutlineDialog(uiSourceCode, selectItemCallback);
     new UI.FilteredListWidget(Sources.JavaScriptOutlineDialog._instanceForTests).showAsDialog();
   }
 
   /**
-   * @param {?MessageEvent} event
+   * @param {boolean} isLastChunk
+   * @param {!Array<!Common.FormatterWorkerPool.JSOutlineItem>} items
    */
-  _didBuildOutlineChunk(event) {
-    if (!event) {
-      this.dispose();
-      this.refresh();
-      return;
-    }
-    var data = /** @type {!Sources.JavaScriptOutlineDialog.MessageEventData} */ (event.data);
-    var chunk = data.chunk;
-    for (var i = 0; i < chunk.length; ++i)
-      this._functionItems.push(chunk[i]);
-
-    if (data.isLastChunk)
-      this.dispose();
-
+  _didBuildOutlineChunk(isLastChunk, items) {
+    this._functionItems = this._functionItems.concat(items);

[dgozman, 2016/12/14 19:33:00]

@lushnikov: tell me to use spread operator.

[lushnikov, 2016/12/14 23:36:56]

Done.

     this.refresh();
   }
 
   /**
    * @override
    * @return {number}
    */
   itemCount() {
     return this._functionItems.length;
   }
@@ skipping 41 matching lines @@
    * @param {?number} itemIndex
    * @param {string} promptValue
    */
   selectItem(itemIndex, promptValue) {
     if (itemIndex === null)
       return;
     var lineNumber = this._functionItems[itemIndex].line;
     if (!isNaN(lineNumber) && lineNumber >= 0)
       this._selectItemCallback(lineNumber, this._functionItems[itemIndex].column);
   }
-
-  /**
-   * @override
-   */
-  dispose() {
-  }
 };
-
-
-/**
- * @typedef {{isLastChunk: boolean, chunk: !Array.<!{selectorText: string, lineNumber: number, columnNumber: number}>}}
- */
-Sources.JavaScriptOutlineDialog.MessageEventData;