DevTools: live ClassPane

third_party/WebKit/Source/devtools/front_end/elements/ClassesPaneWidget.js

 // Copyright (c) 2015 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
  */
 Elements.ClassesPaneWidget = class extends UI.Widget {
   constructor() {
     super();
     this.element.className = 'styles-element-classes-pane';
     var container = this.element.createChild('div', 'title-container');
     this._input = container.createChild('div', 'new-class-input monospace');
     this.setDefaultFocusedElement(this._input);
     this._classesContainer = this.element.createChild('div', 'source-code');
     this._classesContainer.classList.add('styles-element-classes-container');
     this._prompt = new Elements.ClassesPaneWidget.ClassNamePrompt();
     this._prompt.setAutocompletionTimeout(0);
     this._prompt.renderAsBlock();
 
     var proxyElement = this._prompt.attach(this._input);
     this._prompt.setPlaceholder(Common.UIString('Add new class'));
+    this._prompt.addEventListener(UI.TextPrompt.Events.ItemApplied, this._onItemApplied, this);
     proxyElement.addEventListener('keydown', this._onKeyDown.bind(this), false);
 
     SDK.targetManager.addModelListener(SDK.DOMModel, SDK.DOMModel.Events.DOMMutated, this._onDOMMutated, this);
     /** @type {!Set<!SDK.DOMNode>} */
     this._mutatingNodes = new Set();
     UI.context.addFlavorChangeListener(SDK.DOMNode, this._update, this);
   }
 
   /**
    * @param {!Event} event
@@ skipping 20 matching lines @@
       var className = className.trim();
       if (!className.length)
         continue;
       this._toggleClass(node, className, true);
     }
     this._installNodeClasses(node);
     this._update();
     event.consume(true);
   }
 
+  _onItemApplied() {
+    var node = UI.context.flavor(SDK.DOMNode);
+    if (!node)
+      return;
+
+    this._installNodeClasses(node, this._prompt._currentSuggestion);
+    this._update();
+  }
+
   /**
    * @param {!Common.Event} event
    */
   _onDOMMutated(event) {
     var node = /** @type {!SDK.DOMNode} */ (event.data);
     if (this._mutatingNodes.has(node))
       return;
     delete node[Elements.ClassesPaneWidget._classesSymbol];
     this._update();
   }
@@ skipping 72 matching lines @@
    * @param {boolean} enabled
    */
   _toggleClass(node, className, enabled) {
     var classes = this._nodeClasses(node);
     classes.set(className, enabled);
   }
 
   /**
    * @param {!SDK.DOMNode} node
    */
-  _installNodeClasses(node) {
+  _installNodeClasses(node, additionalClass) {
     var classes = this._nodeClasses(node);
     var activeClasses = new Set();
     for (var className of classes.keys()) {
       if (classes.get(className))
         activeClasses.add(className);
     }
 
+    if (additionalClass)
+      activeClasses.add(additionalClass);
     var newClasses = activeClasses.valuesArray();
     newClasses.sort();
     this._mutatingNodes.add(node);
     node.setAttributeValue('class', newClasses.join(' '), onClassNameUpdated.bind(this));
 
     /**
      * @this {Elements.ClassesPaneWidget}
      */
     function onClassNameUpdated() {
       this._mutatingNodes.delete(node);
@@ skipping 83 matching lines @@
     if (!this._classNamesPromise || this._selectedFrameId !== selectedNode.frameId())
       this._classNamesPromise = this._getClassNames(selectedNode);
 
     return this._classNamesPromise.then(completions => {
       if (prefix[0] === '.')
         completions = completions.map(value => '.' + value);
       return completions.filter(value => value.startsWith(prefix)).map(completion => ({text: completion}));
     });
   }
 };