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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/214844">214844</a></dd>
<dt>Author</dt> <dd>mattbaker@apple.com</dd>
<dt>Date</dt> <dd>2017-04-03 15:09:23 -0700 (Mon, 03 Apr 2017)</dd>
</dl>

<h3>Log Message</h3>
<pre>Web Inspector: Elements tab: show indicators for hidden DOM breakpoints
https://bugs.webkit.org/show_bug.cgi?id=168761

Reviewed by Timothy Hatcher.

* Localizations/en.lproj/localizedStrings.js:
New DOM breakpoint content menu item.

* UserInterface/Views/DOMTreeContentView.css:
(.content-view.dom-tree .tree-outline.dom li .status-image.breakpoint.subtree):
(.content-view.dom-tree .tree-outline.dom li.expanded .status-image.breakpoint.subtree):
New styles for collapsed breakpoint marker.

* UserInterface/Views/DOMTreeElement.js:
(WebInspector.DOMTreeElement):
(WebInspector.DOMTreeElement.prototype.set breakpointStatus):
If the status change indicates the only breakpoint was added or removed,
update subtree breakpoint counts on the element's parent chain.

(WebInspector.DOMTreeElement.prototype.revealAndHighlight):
Reveal the tree element, and add a highlighted line animation
identical to the one used used by TextEditor.

(WebInspector.DOMTreeElement.prototype.subtreeBreakpointCountDidChange):
(WebInspector.DOMTreeElement.prototype.updateSelectionArea):
Selection area should be updated when animating the element highlight.
(WebInspector.DOMTreeElement.prototype.onreveal):
Animate highlight if needed.
(WebInspector.DOMTreeElement.prototype._updateBreakpointStatus):
(WebInspector.DOMTreeElement.prototype._statusImageClicked):
Do nothing when clicking the collapsed breakpoint marker.
(WebInspector.DOMTreeElement.prototype._statusImageContextmenu):
Add &quot;Reveal Breakpoint&quot; menu item. Reveals the first descendant
with at least one breakpoint.

(WebInspector.DOMTreeElement.prototype._highlightAnimationEnd):

* UserInterface/Views/DOMTreeOutline.css:
(@keyframes dom-tree-outline-highlight-fadeout):
(.highlight .selection-area):
Styles for highlight fade animation.

* UserInterface/Views/TreeElement.js:
(WebInspector.TreeElement.prototype.selfOrDescendant):
* UserInterface/Views/TreeOutline.js:
(WebInspector.TreeOutline.prototype.selfOrDescendant):
Find a node matching a predicate.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebInspectorUIChangeLog">trunk/Source/WebInspectorUI/ChangeLog</a></li>
<li><a href="#trunkSourceWebInspectorUILocalizationsenlprojlocalizedStringsjs">trunk/Source/WebInspectorUI/Localizations/en.lproj/localizedStrings.js</a></li>
<li><a href="#trunkSourceWebInspectorUIUserInterfaceViewsDOMTreeContentViewcss">trunk/Source/WebInspectorUI/UserInterface/Views/DOMTreeContentView.css</a></li>
<li><a href="#trunkSourceWebInspectorUIUserInterfaceViewsDOMTreeElementjs">trunk/Source/WebInspectorUI/UserInterface/Views/DOMTreeElement.js</a></li>
<li><a href="#trunkSourceWebInspectorUIUserInterfaceViewsDOMTreeOutlinecss">trunk/Source/WebInspectorUI/UserInterface/Views/DOMTreeOutline.css</a></li>
<li><a href="#trunkSourceWebInspectorUIUserInterfaceViewsTreeElementjs">trunk/Source/WebInspectorUI/UserInterface/Views/TreeElement.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 (214843 => 214844)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/ChangeLog        2017-04-03 22:07:46 UTC (rev 214843)
+++ trunk/Source/WebInspectorUI/ChangeLog        2017-04-03 22:09:23 UTC (rev 214844)
</span><span class="lines">@@ -1,5 +1,55 @@
</span><span class="cx"> 2017-04-03  Matt Baker  &lt;mattbaker@apple.com&gt;
</span><span class="cx"> 
</span><ins>+        Web Inspector: Elements tab: show indicators for hidden DOM breakpoints
+        https://bugs.webkit.org/show_bug.cgi?id=168761
+
+        Reviewed by Timothy Hatcher.
+
+        * Localizations/en.lproj/localizedStrings.js:
+        New DOM breakpoint content menu item.
+
+        * UserInterface/Views/DOMTreeContentView.css:
+        (.content-view.dom-tree .tree-outline.dom li .status-image.breakpoint.subtree):
+        (.content-view.dom-tree .tree-outline.dom li.expanded .status-image.breakpoint.subtree):
+        New styles for collapsed breakpoint marker.
+
+        * UserInterface/Views/DOMTreeElement.js:
+        (WebInspector.DOMTreeElement):
+        (WebInspector.DOMTreeElement.prototype.set breakpointStatus):
+        If the status change indicates the only breakpoint was added or removed,
+        update subtree breakpoint counts on the element's parent chain.
+
+        (WebInspector.DOMTreeElement.prototype.revealAndHighlight):
+        Reveal the tree element, and add a highlighted line animation
+        identical to the one used used by TextEditor.
+
+        (WebInspector.DOMTreeElement.prototype.subtreeBreakpointCountDidChange):
+        (WebInspector.DOMTreeElement.prototype.updateSelectionArea):
+        Selection area should be updated when animating the element highlight.
+        (WebInspector.DOMTreeElement.prototype.onreveal):
+        Animate highlight if needed.
+        (WebInspector.DOMTreeElement.prototype._updateBreakpointStatus):
+        (WebInspector.DOMTreeElement.prototype._statusImageClicked):
+        Do nothing when clicking the collapsed breakpoint marker.
+        (WebInspector.DOMTreeElement.prototype._statusImageContextmenu):
+        Add &quot;Reveal Breakpoint&quot; menu item. Reveals the first descendant
+        with at least one breakpoint.
+
+        (WebInspector.DOMTreeElement.prototype._highlightAnimationEnd):
+
+        * UserInterface/Views/DOMTreeOutline.css:
+        (@keyframes dom-tree-outline-highlight-fadeout):
+        (.highlight .selection-area):
+        Styles for highlight fade animation.
+
+        * UserInterface/Views/TreeElement.js:
+        (WebInspector.TreeElement.prototype.selfOrDescendant):
+        * UserInterface/Views/TreeOutline.js:
+        (WebInspector.TreeOutline.prototype.selfOrDescendant):
+        Find a node matching a predicate.
+
+2017-04-03  Matt Baker  &lt;mattbaker@apple.com&gt;
+
</ins><span class="cx">         Web Inspector: DetailsSection should hide header &quot;options&quot; when collapsed
</span><span class="cx">         https://bugs.webkit.org/show_bug.cgi?id=170029
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebInspectorUILocalizationsenlprojlocalizedStringsjs"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/Localizations/en.lproj/localizedStrings.js (214843 => 214844)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/Localizations/en.lproj/localizedStrings.js        2017-04-03 22:07:46 UTC (rev 214843)
+++ trunk/Source/WebInspectorUI/Localizations/en.lproj/localizedStrings.js        2017-04-03 22:09:23 UTC (rev 214844)
</span><span class="lines">@@ -682,6 +682,7 @@
</span><span class="cx"> localizedStrings[&quot;Retained Size&quot;] = &quot;Retained Size&quot;;
</span><span class="cx"> localizedStrings[&quot;Return type for anonymous function&quot;] = &quot;Return type for anonymous function&quot;;
</span><span class="cx"> localizedStrings[&quot;Return type for function: %s&quot;] = &quot;Return type for function: %s&quot;;
</span><ins>+localizedStrings[&quot;Reveal Breakpoint&quot;] = &quot;Reveal Breakpoint&quot;;
</ins><span class="cx"> localizedStrings[&quot;Reveal in DOM Tree&quot;] = &quot;Reveal in DOM Tree&quot;;
</span><span class="cx"> localizedStrings[&quot;Reveal in Debugger Tab&quot;] = &quot;Reveal in Debugger Tab&quot;;
</span><span class="cx"> localizedStrings[&quot;Reveal in Original Resource&quot;] = &quot;Reveal in Original Resource&quot;;
</span></span></pre></div>
<a id="trunkSourceWebInspectorUIUserInterfaceViewsDOMTreeContentViewcss"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/UserInterface/Views/DOMTreeContentView.css (214843 => 214844)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/UserInterface/Views/DOMTreeContentView.css        2017-04-03 22:07:46 UTC (rev 214843)
+++ trunk/Source/WebInspectorUI/UserInterface/Views/DOMTreeContentView.css        2017-04-03 22:09:23 UTC (rev 214844)
</span><span class="lines">@@ -84,3 +84,12 @@
</span><span class="cx">     fill: var(--breakpoint-unresolved-disabled-fill-color);
</span><span class="cx">     stroke: var(--breakpoint-unresolved-disabled-stroke-color);
</span><span class="cx"> }
</span><ins>+
+.content-view.dom-tree .tree-outline.dom li .status-image.breakpoint.subtree {
+    fill: none;
+    opacity: 0.6;
+}
+
+.content-view.dom-tree .tree-outline.dom li.expanded .status-image.breakpoint.subtree {
+    display: none;
+}
</ins></span></pre></div>
<a id="trunkSourceWebInspectorUIUserInterfaceViewsDOMTreeElementjs"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/UserInterface/Views/DOMTreeElement.js (214843 => 214844)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/UserInterface/Views/DOMTreeElement.js        2017-04-03 22:07:46 UTC (rev 214843)
+++ trunk/Source/WebInspectorUI/UserInterface/Views/DOMTreeElement.js        2017-04-03 22:09:23 UTC (rev 214844)
</span><span class="lines">@@ -42,6 +42,10 @@
</span><span class="cx">         this._searchQuery = null;
</span><span class="cx">         this._expandedChildrenLimit = WebInspector.DOMTreeElement.InitialChildrenLimit;
</span><span class="cx">         this._breakpointStatus = WebInspector.DOMTreeElement.BreakpointStatus.None;
</span><ins>+        this._animatingHighlight = false;
+        this._shouldHighlightAfterReveal = false;
+        this._boundHighlightAnimationEnd = this._highlightAnimationEnd.bind(this);
+        this._subtreeBreakpointCount = 0;
</ins><span class="cx"> 
</span><span class="cx">         this._recentlyModifiedAttributes = [];
</span><span class="cx">         this._boundNodeChangedAnimationEnd = this._nodeChangedAnimationEnd.bind(this);
</span><span class="lines">@@ -75,10 +79,40 @@
</span><span class="cx">         if (this._breakpointStatus === status)
</span><span class="cx">             return;
</span><span class="cx"> 
</span><ins>+        let increment;
+        if (this._breakpointStatus === WebInspector.DOMTreeElement.BreakpointStatus.None)
+            increment = 1;
+        else if (status === WebInspector.DOMTreeElement.BreakpointStatus.None)
+            increment = -1;
+
</ins><span class="cx">         this._breakpointStatus = status;
</span><span class="cx">         this._updateBreakpointStatus();
</span><ins>+
+        if (!increment)
+            return;
+
+        let parentElement = this.parent;
+        while (parentElement &amp;&amp; !parentElement.root) {
+            parentElement.subtreeBreakpointCountDidChange(increment);
+            parentElement = parentElement.parent;
+        }
</ins><span class="cx">     }
</span><span class="cx"> 
</span><ins>+    revealAndHighlight()
+    {
+        if (this._animatingHighlight)
+            return;
+
+        this._shouldHighlightAfterReveal = true;
+        this.reveal();
+    }
+
+    subtreeBreakpointCountDidChange(increment)
+    {
+        this._subtreeBreakpointCount += increment;
+        this._updateBreakpointStatus();
+    }
+
</ins><span class="cx">     isCloseTag()
</span><span class="cx">     {
</span><span class="cx">         return this._elementCloseTag;
</span><span class="lines">@@ -298,7 +332,7 @@
</span><span class="cx">             return;
</span><span class="cx"> 
</span><span class="cx">         // If there's no reason to have a selection area, remove the DOM element.
</span><del>-        let indicatesTreeOutlineState = this.treeOutline &amp;&amp; (this.treeOutline.dragOverTreeElement === this || this.treeOutline.selectedTreeElement === this);
</del><ins>+        let indicatesTreeOutlineState = this.treeOutline &amp;&amp; (this.treeOutline.dragOverTreeElement === this || this.treeOutline.selectedTreeElement === this || this._animatingHighlight);
</ins><span class="cx">         if (!this.hovered &amp;&amp; !this.pseudoClassesEnabled &amp;&amp; !indicatesTreeOutlineState) {
</span><span class="cx">             if (this._selectionElement) {
</span><span class="cx">                 this._selectionElement.remove();
</span><span class="lines">@@ -534,13 +568,26 @@
</span><span class="cx"> 
</span><span class="cx">     onreveal()
</span><span class="cx">     {
</span><del>-        if (this.listItemElement) {
-            var tagSpans = this.listItemElement.getElementsByClassName(&quot;html-tag-name&quot;);
-            if (tagSpans.length)
-                tagSpans[0].scrollIntoViewIfNeeded(false);
-            else
-                this.listItemElement.scrollIntoViewIfNeeded(false);
-        }
</del><ins>+        let listItemElement = this.listItemElement;
+        if (!listItemElement)
+            return;
+
+        let tagSpans = listItemElement.getElementsByClassName(&quot;html-tag-name&quot;);
+        if (tagSpans.length)
+            tagSpans[0].scrollIntoViewIfNeeded(false);
+        else
+            listItemElement.scrollIntoViewIfNeeded(false);
+
+        if (!this._shouldHighlightAfterReveal)
+            return;
+
+        this._shouldHighlightAfterReveal = false;
+        this._animatingHighlight = true;
+
+        this.updateSelectionArea();
+
+        listItemElement.addEventListener(&quot;animationend&quot;, this._boundHighlightAnimationEnd);
+        listItemElement.classList.add(WebInspector.DOMTreeElement.HighlightStyleClassName);
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     onselect(treeElement, selectedByUser)
</span><span class="lines">@@ -1675,7 +1722,10 @@
</span><span class="cx">         if (!listItemElement)
</span><span class="cx">             return;
</span><span class="cx"> 
</span><del>-        if (this._breakpointStatus === WebInspector.DOMTreeElement.BreakpointStatus.None) {
</del><ins>+        let hasBreakpoint = this._breakpointStatus !== WebInspector.DOMTreeElement.BreakpointStatus.None;
+        let hasSubtreeBreakpoints = !!this._subtreeBreakpointCount;
+
+        if (!hasBreakpoint &amp;&amp; !hasSubtreeBreakpoints) {
</ins><span class="cx">             if (this._statusImageElement)
</span><span class="cx">                 this._statusImageElement.remove();
</span><span class="cx">             return;
</span><span class="lines">@@ -1689,6 +1739,8 @@
</span><span class="cx">             this._statusImageElement.addEventListener(&quot;mousedown&quot;, (event) =&gt; { event.stopPropagation(); });
</span><span class="cx">         }
</span><span class="cx"> 
</span><ins>+        this._statusImageElement.classList.toggle(&quot;subtree&quot;, !hasBreakpoint &amp;&amp; hasSubtreeBreakpoints);
+
</ins><span class="cx">         this.listItemElement.insertBefore(this._statusImageElement, this.listItemElement.firstChild);
</span><span class="cx"> 
</span><span class="cx">         let disabled = this._breakpointStatus === WebInspector.DOMTreeElement.BreakpointStatus.DisabledBreakpoint;
</span><span class="lines">@@ -1697,6 +1749,9 @@
</span><span class="cx"> 
</span><span class="cx">     _statusImageClicked(event)
</span><span class="cx">     {
</span><ins>+        if (this._breakpointStatus === WebInspector.DOMTreeElement.BreakpointStatus.None)
+            return;
+
</ins><span class="cx">         if (event.button !== 0 || event.ctrlKey)
</span><span class="cx">             return;
</span><span class="cx"> 
</span><span class="lines">@@ -1710,11 +1765,39 @@
</span><span class="cx"> 
</span><span class="cx">     _statusImageContextmenu(event)
</span><span class="cx">     {
</span><del>-        const allowEditing = true;
</del><ins>+        let hasBreakpoint = this._breakpointStatus !== WebInspector.DOMTreeElement.BreakpointStatus.None;
+        let hasSubtreeBreakpoints = !!this._subtreeBreakpointCount;
+        if (!hasBreakpoint &amp;&amp; !hasSubtreeBreakpoints)
+            return;
</ins><span class="cx"> 
</span><span class="cx">         let contextMenu = WebInspector.ContextMenu.createFromEvent(event);
</span><del>-        WebInspector.DOMBreakpointTreeController.appendBreakpointContextMenuItems(contextMenu, this.representedObject, allowEditing);
</del><ins>+        if (hasBreakpoint) {
+            const allowEditing = true;
+            WebInspector.DOMBreakpointTreeController.appendBreakpointContextMenuItems(contextMenu, this.representedObject, allowEditing);
+            return;
+        }
+
+        contextMenu.appendItem(WebInspector.UIString(&quot;Reveal Breakpoint&quot;), () =&gt; {
+            let breakpointTreeElement = this.selfOrDescendant((treeElement) =&gt; treeElement.breakpointStatus &amp;&amp; treeElement.breakpointStatus !== WebInspector.DOMTreeElement.BreakpointStatus.None);
+            console.assert(breakpointTreeElement, &quot;Missing breakpoint descendant.&quot;, this)
+            if (!breakpointTreeElement)
+                return;
+
+            breakpointTreeElement.revealAndHighlight();
+        });
</ins><span class="cx">     }
</span><ins>+
+    _highlightAnimationEnd()
+    {
+        let listItemElement = this.listItemElement;
+        if (!listItemElement)
+            return;
+
+        listItemElement.removeEventListener(&quot;animationend&quot;, this._boundHighlightAnimationEnd);
+        listItemElement.classList.remove(WebInspector.DOMTreeElement.HighlightStyleClassName);
+
+        this._animatingHighlight = false;
+    }
</ins><span class="cx"> };
</span><span class="cx"> 
</span><span class="cx"> WebInspector.DOMTreeElement.InitialChildrenLimit = 500;
</span><span class="lines">@@ -1743,5 +1826,6 @@
</span><span class="cx">     DisabledBreakpoint: Symbol(&quot;disabled-breakpoint&quot;),
</span><span class="cx"> };
</span><span class="cx"> 
</span><ins>+WebInspector.DOMTreeElement.HighlightStyleClassName = &quot;highlight&quot;;
</ins><span class="cx"> WebInspector.DOMTreeElement.SearchHighlightStyleClassName = &quot;search-highlight&quot;;
</span><span class="cx"> WebInspector.DOMTreeElement.BouncyHighlightStyleClassName = &quot;bouncy-highlight&quot;;
</span></span></pre></div>
<a id="trunkSourceWebInspectorUIUserInterfaceViewsDOMTreeOutlinecss"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/UserInterface/Views/DOMTreeOutline.css (214843 => 214844)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/UserInterface/Views/DOMTreeOutline.css        2017-04-03 22:07:46 UTC (rev 214843)
+++ trunk/Source/WebInspectorUI/UserInterface/Views/DOMTreeOutline.css        2017-04-03 22:09:23 UTC (rev 214844)
</span><span class="lines">@@ -295,3 +295,11 @@
</span><span class="cx"> .node-state-changed {
</span><span class="cx">     animation: node-state-changed 1s cubic-bezier(0.25, 0, 0.25, 1);
</span><span class="cx"> }
</span><ins>+
+@keyframes dom-tree-outline-highlight-fadeout {
+    from { background-color: highlight; }
+}
+
+.highlight .selection-area {
+    animation: &quot;dom-tree-outline-highlight-fadeout&quot; 2s;
+}
</ins></span></pre></div>
<a id="trunkSourceWebInspectorUIUserInterfaceViewsTreeElementjs"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/UserInterface/Views/TreeElement.js (214843 => 214844)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/UserInterface/Views/TreeElement.js        2017-04-03 22:07:46 UTC (rev 214843)
+++ trunk/Source/WebInspectorUI/UserInterface/Views/TreeElement.js        2017-04-03 22:09:23 UTC (rev 214844)
</span><span class="lines">@@ -63,6 +63,7 @@
</span><span class="cx">     removeChildAtIndex() { return WebInspector.TreeOutline.prototype.removeChildAtIndex.apply(this, arguments); }
</span><span class="cx">     removeChildren() { return WebInspector.TreeOutline.prototype.removeChildren.apply(this, arguments); }
</span><span class="cx">     removeChildrenRecursive() { return WebInspector.TreeOutline.prototype.removeChildrenRecursive.apply(this, arguments); }
</span><ins>+    selfOrDescendant() { return WebInspector.TreeOutline.prototype.selfOrDescendant.apply(this, arguments); }
</ins><span class="cx"> 
</span><span class="cx">     get arrowToggleWidth()
</span><span class="cx">     {
</span></span></pre></div>
<a id="trunkSourceWebInspectorUIUserInterfaceViewsTreeOutlinejs"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebInspectorUI/UserInterface/Views/TreeOutline.js (214843 => 214844)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebInspectorUI/UserInterface/Views/TreeOutline.js        2017-04-03 22:07:46 UTC (rev 214843)
+++ trunk/Source/WebInspectorUI/UserInterface/Views/TreeOutline.js        2017-04-03 22:09:23 UTC (rev 214844)
</span><span class="lines">@@ -397,6 +397,20 @@
</span><span class="cx">         return null;
</span><span class="cx">     }
</span><span class="cx"> 
</span><ins>+    selfOrDescendant(predicate)
+    {
+        let treeElements = [this];
+        while (treeElements.length) {
+            let treeElement = treeElements.shift();
+            if (predicate(treeElement))
+                return treeElement;
+
+            treeElements = treeElements.concat(treeElement.children);
+        }
+
+        return false;
+    }
+
</ins><span class="cx">     findTreeElement(representedObject, isAncestor, getParent)
</span><span class="cx">     {
</span><span class="cx">         if (!representedObject)
</span></span></pre>
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