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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/193791">193791</a></dd>
<dt>Author</dt> <dd>mattbaker@apple.com</dd>
<dt>Date</dt> <dd>2015-12-08 16:04:46 -0800 (Tue, 08 Dec 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>Web Inspector: Add a hidden property to TreeOutline
https://bugs.webkit.org/show_bug.cgi?id=152014

Reviewed by Timothy Hatcher.

* UserInterface/Views/NavigationSidebarPanel.js:
Removed static property for &quot;hidden&quot; CSS class. No longer used.
(WebInspector.NavigationSidebarPanel.prototype.set contentTreeOutline):
Fixed bug in order of visibleTreeOutlines add/remove.
(WebInspector.NavigationSidebarPanel.prototype.createContentTreeOutline):

* UserInterface/Views/TimelineSidebarPanel.js:
(WebInspector.TimelineSidebarPanel):
(WebInspector.TimelineSidebarPanel.prototype._changeViewMode):

* UserInterface/Views/TreeOutline.js:
(WebInspector.TreeOutline):
(WebInspector.TreeOutline.prototype.get hidden):
(WebInspector.TreeOutline.prototype.set hidden):
Added hidden property, set DOM element hidden attribute.
(WebInspector.TreeElement.prototype.set hidden):
Remove CSS class, set DOM element hidden attribute.
(WebInspector.TreeElement.prototype._attach):
(WebInspector.TreeElement.prototype.expand):</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebInspectorUIChangeLog">trunk/Source/WebInspectorUI/ChangeLog</a></li>
<li><a href="#trunkSourceWebInspectorUIUserInterfaceViewsNavigationSidebarPaneljs">trunk/Source/WebInspectorUI/UserInterface/Views/NavigationSidebarPanel.js</a></li>
<li><a href="#trunkSourceWebInspectorUIUserInterfaceViewsTimelineSidebarPaneljs">trunk/Source/WebInspectorUI/UserInterface/Views/TimelineSidebarPanel.js</a></li>
<li><a href="#trunkSourceWebInspectorUIUserInterfaceViewsTreeOutlinejs">trunk/Source/WebInspectorUI/UserInterface/Views/TreeOutline.js</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebInspectorUIChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/ChangeLog (193790 => 193791)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/ChangeLog        2015-12-08 23:57:13 UTC (rev 193790)
+++ trunk/Source/WebInspectorUI/ChangeLog        2015-12-09 00:04:46 UTC (rev 193791)
</span><span class="lines">@@ -1,5 +1,32 @@
</span><span class="cx"> 2015-12-08  Matt Baker  &lt;mattbaker@apple.com&gt;
</span><span class="cx"> 
</span><ins>+        Web Inspector: Add a hidden property to TreeOutline
+        https://bugs.webkit.org/show_bug.cgi?id=152014
+
+        Reviewed by Timothy Hatcher.
+
+        * UserInterface/Views/NavigationSidebarPanel.js:
+        Removed static property for &quot;hidden&quot; CSS class. No longer used.
+        (WebInspector.NavigationSidebarPanel.prototype.set contentTreeOutline):
+        Fixed bug in order of visibleTreeOutlines add/remove.
+        (WebInspector.NavigationSidebarPanel.prototype.createContentTreeOutline):
+
+        * UserInterface/Views/TimelineSidebarPanel.js:
+        (WebInspector.TimelineSidebarPanel):
+        (WebInspector.TimelineSidebarPanel.prototype._changeViewMode):
+
+        * UserInterface/Views/TreeOutline.js:
+        (WebInspector.TreeOutline):
+        (WebInspector.TreeOutline.prototype.get hidden):
+        (WebInspector.TreeOutline.prototype.set hidden):
+        Added hidden property, set DOM element hidden attribute.
+        (WebInspector.TreeElement.prototype.set hidden):
+        Remove CSS class, set DOM element hidden attribute.
+        (WebInspector.TreeElement.prototype._attach):
+        (WebInspector.TreeElement.prototype.expand):
+
+2015-12-08  Matt Baker  &lt;mattbaker@apple.com&gt;
+
</ins><span class="cx">         Web Inspector: Global Breakpoints should always be visible
</span><span class="cx">         https://bugs.webkit.org/show_bug.cgi?id=151066
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebInspectorUIUserInterfaceViewsNavigationSidebarPaneljs"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/UserInterface/Views/NavigationSidebarPanel.js (193790 => 193791)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/UserInterface/Views/NavigationSidebarPanel.js        2015-12-08 23:57:13 UTC (rev 193790)
+++ trunk/Source/WebInspectorUI/UserInterface/Views/NavigationSidebarPanel.js        2015-12-09 00:04:46 UTC (rev 193791)
</span><span class="lines">@@ -113,13 +113,14 @@
</span><span class="cx">         if (!newTreeOutline)
</span><span class="cx">             return;
</span><span class="cx"> 
</span><del>-        if (this._contentTreeOutline)
-            this._contentTreeOutline.element.classList.add(WebInspector.NavigationSidebarPanel.ContentTreeOutlineElementHiddenStyleClassName);
</del><ins>+        if (this._contentTreeOutline) {
+            this._contentTreeOutline.hidden = true;
+            this._visibleContentTreeOutlines.delete(this._contentTreeOutline);
+        }
</ins><span class="cx"> 
</span><span class="cx">         this._contentTreeOutline = newTreeOutline;
</span><del>-        this._contentTreeOutline.element.classList.remove(WebInspector.NavigationSidebarPanel.ContentTreeOutlineElementHiddenStyleClassName);
</del><ins>+        this._contentTreeOutline.hidden = false;
</ins><span class="cx"> 
</span><del>-        this._visibleContentTreeOutlines.delete(this._contentTreeOutline);
</del><span class="cx">         this._visibleContentTreeOutlines.add(newTreeOutline);
</span><span class="cx"> 
</span><span class="cx">         this._updateFilter();
</span><span class="lines">@@ -156,15 +157,13 @@
</span><span class="cx"> 
</span><span class="cx">     createContentTreeOutline(dontHideByDefault, suppressFiltering)
</span><span class="cx">     {
</span><del>-        var contentTreeOutlineElement = document.createElement(&quot;ol&quot;);
-        contentTreeOutlineElement.className = WebInspector.NavigationSidebarPanel.ContentTreeOutlineElementStyleClassName;
-        if (!dontHideByDefault)
-            contentTreeOutlineElement.classList.add(WebInspector.NavigationSidebarPanel.ContentTreeOutlineElementHiddenStyleClassName);
-        this.contentElement.appendChild(contentTreeOutlineElement);
-
-        var contentTreeOutline = new WebInspector.TreeOutline(contentTreeOutlineElement);
</del><ins>+        let contentTreeOutline = new WebInspector.TreeOutline(document.createElement(&quot;ol&quot;));
</ins><span class="cx">         contentTreeOutline.allowsRepeatSelection = true;
</span><ins>+        contentTreeOutline.hidden = !dontHideByDefault;
+        contentTreeOutline.element.classList.add(WebInspector.NavigationSidebarPanel.ContentTreeOutlineElementStyleClassName);
</ins><span class="cx"> 
</span><ins>+        this.contentElement.appendChild(contentTreeOutline.element);
+
</ins><span class="cx">         if (!suppressFiltering) {
</span><span class="cx">             contentTreeOutline.addEventListener(WebInspector.TreeOutline.Event.ElementAdded, this._treeElementAddedOrChanged, this);
</span><span class="cx">             contentTreeOutline.addEventListener(WebInspector.TreeOutline.Event.ElementDidChange, this._treeElementAddedOrChanged, this);
</span><span class="lines">@@ -734,7 +733,6 @@
</span><span class="cx"> 
</span><span class="cx"> WebInspector.NavigationSidebarPanel.OverflowShadowElementStyleClassName = &quot;overflow-shadow&quot;;
</span><span class="cx"> WebInspector.NavigationSidebarPanel.TopOverflowShadowElementStyleClassName = &quot;top&quot;;
</span><del>-WebInspector.NavigationSidebarPanel.ContentTreeOutlineElementHiddenStyleClassName = &quot;hidden&quot;;
</del><span class="cx"> WebInspector.NavigationSidebarPanel.ContentTreeOutlineElementStyleClassName = &quot;navigation-sidebar-panel-content-tree-outline&quot;;
</span><span class="cx"> WebInspector.NavigationSidebarPanel.HideDisclosureButtonsStyleClassName = &quot;hide-disclosure-buttons&quot;;
</span><span class="cx"> WebInspector.NavigationSidebarPanel.EmptyContentPlaceholderElementStyleClassName = &quot;empty-content-placeholder&quot;;
</span></span></pre></div>
<a id="trunkSourceWebInspectorUIUserInterfaceViewsTimelineSidebarPaneljs"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/UserInterface/Views/TimelineSidebarPanel.js (193790 => 193791)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/UserInterface/Views/TimelineSidebarPanel.js        2015-12-08 23:57:13 UTC (rev 193790)
+++ trunk/Source/WebInspectorUI/UserInterface/Views/TimelineSidebarPanel.js        2015-12-09 00:04:46 UTC (rev 193791)
</span><span class="lines">@@ -61,7 +61,7 @@
</span><span class="cx">         this._recordingTreeElementMap = new Map;
</span><span class="cx">         this._recordingsTreeOutline = this.createContentTreeOutline(true, true);
</span><span class="cx">         this._recordingsTreeOutline.element.classList.add(WebInspector.NavigationSidebarPanel.HideDisclosureButtonsStyleClassName);
</span><del>-        this._recordingsTreeOutline.element.classList.add(WebInspector.NavigationSidebarPanel.ContentTreeOutlineElementHiddenStyleClassName);
</del><ins>+        this._recordingsTreeOutline.hidden = true;
</ins><span class="cx">         this._recordingsTreeOutline.addEventListener(WebInspector.TreeOutline.Event.SelectionDidChange, this._recordingsTreeSelectionDidChange, this);
</span><span class="cx">         this._timelinesContentContainerElement.appendChild(this._recordingsTreeOutline.element);
</span><span class="cx"> 
</span><span class="lines">@@ -930,10 +930,10 @@
</span><span class="cx">         this._viewModeNavigationBar.selectedNavigationItem = this._viewMode;
</span><span class="cx"> 
</span><span class="cx">         if (this._viewMode === WebInspector.TimelineSidebarPanel.ViewMode.Timelines) {
</span><del>-            this._timelinesTreeOutline.element.classList.remove(WebInspector.NavigationSidebarPanel.ContentTreeOutlineElementHiddenStyleClassName);
</del><ins>+            this._timelinesTreeOutline.hidden = false;
</ins><span class="cx">             this._frameSelectionChartSection.collapsed = true;
</span><span class="cx">         } else {
</span><del>-            this._timelinesTreeOutline.element.classList.add(WebInspector.NavigationSidebarPanel.ContentTreeOutlineElementHiddenStyleClassName);
</del><ins>+            this._timelinesTreeOutline.hidden = true;
</ins><span class="cx">             this._frameSelectionChartSection.collapsed = false;
</span><span class="cx">         }
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebInspectorUIUserInterfaceViewsTreeOutlinejs"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/UserInterface/Views/TreeOutline.js (193790 => 193791)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/UserInterface/Views/TreeOutline.js        2015-12-08 23:57:13 UTC (rev 193790)
+++ trunk/Source/WebInspectorUI/UserInterface/Views/TreeOutline.js        2015-12-09 00:04:46 UTC (rev 193791)
</span><span class="lines">@@ -46,13 +46,28 @@
</span><span class="cx">         this.expanded = true;
</span><span class="cx">         this.selected = false;
</span><span class="cx">         this.treeOutline = this;
</span><ins>+        this._hidden = false;
</ins><span class="cx"> 
</span><span class="cx">         this._childrenListNode.tabIndex = 0;
</span><span class="cx">         this._childrenListNode.addEventListener(&quot;keydown&quot;, this._treeKeyDown.bind(this), true);
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    // Methods
</del><ins>+    // Public
</ins><span class="cx"> 
</span><ins>+    get hidden()
+    {
+        return this._hidden;
+    }
+
+    set hidden(x)
+    {
+        if (this._hidden === x)
+            return;
+
+        this._hidden = x;
+        this.element.hidden = this._hidden;
+    }
+
</ins><span class="cx">     appendChild(child)
</span><span class="cx">     {
</span><span class="cx">         console.assert(child);
</span><span class="lines">@@ -659,17 +674,10 @@
</span><span class="cx"> 
</span><span class="cx">         this._hidden = x;
</span><span class="cx"> 
</span><del>-        if (x) {
-            if (this._listItemNode)
-                this._listItemNode.classList.add(&quot;hidden&quot;);
-            if (this._childrenListNode)
-                this._childrenListNode.classList.add(&quot;hidden&quot;);
-        } else {
-            if (this._listItemNode)
-                this._listItemNode.classList.remove(&quot;hidden&quot;);
-            if (this._childrenListNode)
-                this._childrenListNode.classList.remove(&quot;hidden&quot;);
-        }
</del><ins>+        if (this._listItemNode)
+            this._listItemNode.hidden = this._hidden;
+        if (this._childrenListNode)
+            this._childrenListNode.hidden = this._hidden;
</ins><span class="cx"> 
</span><span class="cx">         if (this.treeOutline)
</span><span class="cx">             this.treeOutline.dispatchEventToListeners(WebInspector.TreeOutline.Event.ElementVisibilityDidChange, {element: this});
</span><span class="lines">@@ -734,9 +742,8 @@
</span><span class="cx">             this._listItemNode.treeElement = this;
</span><span class="cx">             this._setListItemNodeContent();
</span><span class="cx">             this._listItemNode.title = this._tooltip ? this._tooltip : &quot;&quot;;
</span><ins>+            this._listItemNode.hidden = this.hidden;
</ins><span class="cx"> 
</span><del>-            if (this.hidden)
-                this._listItemNode.classList.add(&quot;hidden&quot;);
</del><span class="cx">             if (this.hasChildren)
</span><span class="cx">                 this._listItemNode.classList.add(&quot;parent&quot;);
</span><span class="cx">             if (this.expanded)
</span><span class="lines">@@ -880,10 +887,8 @@
</span><span class="cx">             this._childrenListNode = this.treeOutline._childrenListNode.ownerDocument.createElement(&quot;ol&quot;);
</span><span class="cx">             this._childrenListNode.parentTreeElement = this;
</span><span class="cx">             this._childrenListNode.classList.add(&quot;children&quot;);
</span><ins>+            this._childrenListNode.hidden = this.hidden;
</ins><span class="cx"> 
</span><del>-            if (this.hidden)
-                this._childrenListNode.classList.add(&quot;hidden&quot;);
-
</del><span class="cx">             this.onpopulate();
</span><span class="cx"> 
</span><span class="cx">             for (var i = 0; i &lt; this.children.length; ++i)
</span></span></pre>
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