[DevTools] Added keyboard search while in sources

third_party/WebKit/Source/devtools/front_end/ui/treeoutline.js

 /*
  * Copyright (C) 2007 Apple 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.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 24 matching lines @@
 {
     this._createRootElement();
 
     this.selectedTreeElement = null;
     this.expandTreeElementsWhenArrowing = false;
     /** @type {?function(!TreeElement, !TreeElement):number} */
     this._comparator = null;
 
     this._contentElement = this._rootElement._childrenListNode;
     this._contentElement.addEventListener("keydown", this._treeKeyDown.bind(this), true);
+    this._contentElement.addEventListener("keypress", this._treeKeyPress.bind(this), true);
 
     this.setFocusable(!nonFocusable);
 
     this.element = this._contentElement;
 }
 
 TreeOutline.Events = {
     ElementAttached: "ElementAttached",
     ElementExpanded: "ElementExpanded",
     ElementCollapsed: "ElementCollapsed",
-    ElementSelected: "ElementSelected"
+    ElementSelected: "ElementSelected",
+    FilterChanged: "FilterChanged"
 }
 
 TreeOutline.prototype = {
     _createRootElement: function()
     {
         this._rootElement = new TreeElement();
         this._rootElement.treeOutline = this;
         this._rootElement.root = true;
         this._rootElement.selectable = false;
         this._rootElement.expanded = true;
         this._rootElement._childrenListNode.classList.remove("children");
+
+        this._currentSelectionFilterString = '';

[lushnikov, 2016/03/14 20:56:38]

style: double quotes for strings

+        this._currentSelectionFilter = null;
     },
 
     /**
      * @return {!TreeElement}
      */
     rootElement: function()
     {
         return this._rootElement;
     },
 
     /**
+     * This will also set/override the RegExp to filter on (ie: setCurrentSelectionFilter())
+     * @param {string} filterString String to filter text on.
+     */
+    setCurrentSelectionFilterString: function (filterString)
+    {
+        this._currentSelectionFilterString = filterString;
+        if(this._currentSelectionFilterString === '')
+            this.setCurrentSelectionFilter(null);
+        else
+            this.setCurrentSelectionFilter(new RegExp(['(', this._currentSelectionFilterString, ')'].join(''), 'i'));
+    },
+
+    /**
+     * @return {string}
+     */
+    currentSelectionFilterString: function ()
+    {
+

[lushnikov, 2016/03/14 20:56:38]

style: stray line

+        return this._currentSelectionFilterString;
+    },
+
+    /**
+     * @param {?RegExp} filterRegExp Regular Expression to use to filter selectable items
+     */
+    setCurrentSelectionFilter: function (filterRegExp)
+    {
+        var currentFilter = this._currentSelectionFilter;
+        this._currentSelectionFilter = filterRegExp;
+
+        if (filterRegExp !== currentFilter) {
+            this.dispatchEventToListeners(TreeOutline.Events.FilterChanged, {
+                treeOutline: this,
+                changeTo: filterRegExp,
+                changeFrom: currentFilter
+            });
+        }
+    },
+
+    /**
+     * @return {?RegExp}
+     */
+    currentSelectionFilter: function ()
+    {
+        return this._currentSelectionFilter;
+    },
+
+    /**
      * @return {?TreeElement}
      */
     firstChild: function()
     {
         return this._rootElement.firstChild();
     },
 
     /**
      * @param {!TreeElement} child
      */
@@ skipping 92 matching lines @@
     {
         if (!element.treeOutline)
             console.error("Unbinding element that was not bound: " + new Error().stack);
 
         element.deselect();
         element.onunbind();
         element.treeOutline = null;
     },
 
     /**
+     * @param {!TreeElement} treeElement
      * @return {boolean}
      */
-    selectPrevious: function()
+    checkFilter: function (treeElement)
+    {
+        return this.currentSelectionFilter() ? this.currentSelectionFilter().test(treeElement.titleText) : true;
+    },
+
+    /**
+     * @param {!RegExp=} filter
+     * @return {boolean}
+     */
+    selectPrevious: function(filter)
     {
         var nextSelectedElement = this.selectedTreeElement.traversePreviousTreeElement(true);
-        while (nextSelectedElement && !nextSelectedElement.selectable)
+        while (nextSelectedElement && (!nextSelectedElement.selectable || (filter ? !filter.test(nextSelectedElement.titleText) : false)))
             nextSelectedElement = nextSelectedElement.traversePreviousTreeElement(!this.expandTreeElementsWhenArrowing);
         if (nextSelectedElement) {
             nextSelectedElement.reveal();
             nextSelectedElement.select(false, true);
             return true;
         }
         return false;
     },
 
     /**
@@ skipping 16 matching lines @@
      * @param {!Event} event
      */
     _treeKeyDown: function(event)
     {
         if (event.target !== this._contentElement)
             return;
 
         if (!this.selectedTreeElement || event.shiftKey || event.metaKey || event.ctrlKey)
             return;
 
-        var handled = false;
-        var nextSelectedElement;
-        if (event.keyIdentifier === "Up" && !event.altKey) {
-            handled = this.selectPrevious();
-        } else if (event.keyIdentifier === "Down" && !event.altKey) {
-            handled = this.selectNext();
-        } else if (event.keyIdentifier === "Left") {
-            if (this.selectedTreeElement.expanded) {
-                if (event.altKey)
-                    this.selectedTreeElement.collapseRecursively();
-                else
-                    this.selectedTreeElement.collapse();
-                handled = true;
-            } else if (this.selectedTreeElement.parent && !this.selectedTreeElement.parent.root) {
-                handled = true;
-                if (this.selectedTreeElement.parent.selectable) {
-                    nextSelectedElement = this.selectedTreeElement.parent;
-                    while (nextSelectedElement && !nextSelectedElement.selectable)
-                        nextSelectedElement = nextSelectedElement.parent;
-                    handled = nextSelectedElement ? true : false;
-                } else if (this.selectedTreeElement.parent)
-                    this.selectedTreeElement.parent.collapse();
-            }
-        } else if (event.keyIdentifier === "Right") {
-            if (!this.selectedTreeElement.revealed()) {
-                this.selectedTreeElement.reveal();
-                handled = true;
-            } else if (this.selectedTreeElement._expandable) {
-                handled = true;
+        var currentFilterString = this.currentSelectionFilterString(),
+            nextSelectedElement,

[lushnikov, 2016/03/14 20:56:38]

style: we don't wrap variable declaration.
If there's declaration with assignment, then we put a seperate var for each
declaration+assignment pair.
If there's just declaration, then we put multiple declarations in a single line.

+            handled = false,
+            key = event.keyCode;
+
+            // is a key to ignore (non printable key)
+            switch (key) {
+            case WebInspector.KeyboardShortcut.Keys.Esc.code:
+                if (currentFilterString.length !== 0) {
+                    // Consider the item handled if the filter string is already set. (this will keep the console from triggering)
+                    handled = true;
+                }
+                this.setCurrentSelectionFilterString('');
+                break;
+            case WebInspector.KeyboardShortcut.Keys.Delete.code:
+                // Clear out the filter
+                this.setCurrentSelectionFilterString('');
+            case WebInspector.KeyboardShortcut.Keys.Backspace.code:
+                // Only perform this action if no filter is set.
+                if (currentFilterString.length === 0) {
+                    handled = this.selectedTreeElement.ondelete();
+                } else {
+                    this.setCurrentSelectionFilterString(currentFilterString.substr(0, currentFilterString.length - 1));
+                }
+                break;
+            case WebInspector.KeyboardShortcut.Keys.Right.code:
+                this.setCurrentSelectionFilterString('');
+                if (!this.selectedTreeElement.revealed()) {
+                    this.selectedTreeElement.reveal();
+                    handled = true;
+                } else if (this.selectedTreeElement._expandable) {
+                    handled = true;
+                    if (this.selectedTreeElement.expanded) {
+                        nextSelectedElement = this.selectedTreeElement.firstChild();
+                        while (nextSelectedElement && !nextSelectedElement.selectable)
+                            nextSelectedElement = nextSelectedElement.nextSibling;
+                        handled = nextSelectedElement ? true : false;
+                    } else {
+                        if (event.altKey)
+                            this.selectedTreeElement.expandRecursively();
+                        else
+                            this.selectedTreeElement.expand();
+                    }
+                }
+                break;
+            case WebInspector.KeyboardShortcut.Keys.Left.code:
+                this.setCurrentSelectionFilterString('');
                 if (this.selectedTreeElement.expanded) {
-                    nextSelectedElement = this.selectedTreeElement.firstChild();
-                    while (nextSelectedElement && !nextSelectedElement.selectable)
-                        nextSelectedElement = nextSelectedElement.nextSibling;
-                    handled = nextSelectedElement ? true : false;
-                } else {
                     if (event.altKey)
-                        this.selectedTreeElement.expandRecursively();
+                        this.selectedTreeElement.collapseRecursively();
                     else
-                        this.selectedTreeElement.expand();
+                        this.selectedTreeElement.collapse();
+                    handled = true;
+                } else if (this.selectedTreeElement.parent && !this.selectedTreeElement.parent.root) {
+                    handled = true;
+                    if (this.selectedTreeElement.parent.selectable) {
+                        nextSelectedElement = this.selectedTreeElement.parent;
+                        while (nextSelectedElement && !nextSelectedElement.selectable)
+                            nextSelectedElement = nextSelectedElement.parent;
+                        handled = nextSelectedElement ? true : false;
+                    } else if (this.selectedTreeElement.parent)
+                        this.selectedTreeElement.parent.collapse();
+                }
+                break;
+            case WebInspector.KeyboardShortcut.Keys.Down.code:
+                if(!event.altKey)
+                    handled = this.selectNext();
+                break;
+            case WebInspector.KeyboardShortcut.Keys.Up.code:
+                if(!event.altKey)
+                    handled = this.selectPrevious();
+                break;
+            case WebInspector.KeyboardShortcut.Keys.Space.code:
+                // Do not send space key event if the search filter has stuff in buffer
+                if (currentFilterString.length === 0)
+                    handled = this.selectedTreeElement.onspace();
+                break;
+            default:
+                if (isEnterKey(event)) {
+                    this.setCurrentSelectionFilterString('');
+                    handled = this.selectedTreeElement.onenter();
                 }
             }
-        } else if (event.keyCode === 8 /* Backspace */ || event.keyCode === 46 /* Delete */)
-            handled = this.selectedTreeElement.ondelete();
-        else if (isEnterKey(event))
-            handled = this.selectedTreeElement.onenter();
-        else if (event.keyCode === WebInspector.KeyboardShortcut.Keys.Space.code)
-            handled = this.selectedTreeElement.onspace();
 
         if (nextSelectedElement) {
             nextSelectedElement.reveal();
             nextSelectedElement.select(false, true);
         }
 
         if (handled)
             event.consume(true);
     },
 
     /**
+     * @param {!Event} event
+     */
+    _treeKeyPress: function (event)
+    {
+        if (event.target !== this._contentElement)
+            return;
+
+        if (!this.selectedTreeElement || event.shiftKey || event.metaKey || event.ctrlKey)
+            return;
+
+        var currentFilterString = this.currentSelectionFilterString();
+
+        switch (event.data) {
+        case "\r":
+        case "\n":
+            // Ignore these (do not append to filter string)
+            break;
+        case " ":
+            if (currentFilterString.length === 0) {
+                // Do not append string if there is no filter data
+                break;
+            }
+        default:
+            // Append the new character to the current filter string and select next element if fails try previous element
+            this.setCurrentSelectionFilterString(currentFilterString + event.data);
+        }
+    },
+
+    /**
      * @param {!TreeElement} treeElement
      * @param {boolean} center
      */
     _deferredScrollIntoView: function(treeElement, center)
     {
         if (!this._treeElementToScrollIntoView)
             this.element.window().requestAnimationFrame(deferredScrollIntoView.bind(this));
         this._treeElementToScrollIntoView = treeElement;
         this._centerUponScrollIntoView = center;
         /**
@@ skipping 53 matching lines @@
 function TreeElement(title, expandable)
 {
     /** @type {?TreeOutline} */
     this.treeOutline = null;
     this.parent = null;
     this.previousSibling = null;
     this.nextSibling = null;
 
     this._listItemNode = createElement("li");
     this._listItemNode.treeElement = this;
+    this.titleText = null;
     if (title)
         this.title = title;
     this._listItemNode.addEventListener("mousedown", this._handleMouseDown.bind(this), false);
     this._listItemNode.addEventListener("selectstart", this._treeElementSelectStart.bind(this), false);
     this._listItemNode.addEventListener("click", this._treeElementToggled.bind(this), false);
     this._listItemNode.addEventListener("dblclick", this._handleDoubleClick.bind(this), false);
 
     this._childrenListNode = createElement("ol");
     this._childrenListNode.parentTreeElement = this;
     this._childrenListNode.classList.add("children");
@@ skipping 223 matching lines @@
                 this.treeOutline._unbindTreeElement(child);
             for (var current = child.firstChild(); this.treeOutline && current; current = current.traverseNextTreeElement(false, child, true))
                 this.treeOutline._unbindTreeElement(current);
             child._detach();
         }
         this._children = [];
     },
 
     get selectable()
     {
-        if (this._hidden)
+        if (this._hidden || !this.treeOutline.checkFilter(this))
             return false;
         return this._selectable;
     },
 
     set selectable(x)
     {
         this._selectable = x;
     },
 
     get listItemElement()
@@ skipping 17 matching lines @@
     set title(x)
     {
         if (this._title === x)
             return;
         this._title = x;
 
         if (typeof x === "string") {
             this._titleElement = createElementWithClass("span", "tree-element-title");
             this._titleElement.textContent = x;
             this.tooltip = x;
+            this.titleText = x;
         } else {
             this._titleElement = x;
             this.tooltip = "";
         }
 
         this._listItemNode.removeChildren();
         if (this._iconElement)
             this._listItemNode.appendChild(this._iconElement);
 
         this._listItemNode.appendChild(this._titleElement);
@@ skipping 498 matching lines @@
     isEventWithinDisclosureTriangle: function(event)
     {
         // FIXME: We should not use getComputedStyle(). For that we need to get rid of using ::before for disclosure triangle. (http://webk.it/74446)
         var paddingLeftValue = window.getComputedStyle(this._listItemNode).paddingLeft;
         console.assert(paddingLeftValue.endsWith("px"));
         var computedLeftPadding = parseFloat(paddingLeftValue);
         var left = this._listItemNode.totalOffsetLeft() + computedLeftPadding;
         return event.pageX >= left && event.pageX <= left + TreeElement._ArrowToggleWidth && this._expandable;
     }
 }