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<title>[193080] branches/safari-601-branch/Source/WebInspectorUI</title>
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<div id="msg">
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/193080">193080</a></dd>
<dt>Author</dt> <dd>timothy@apple.com</dd>
<dt>Date</dt> <dd>2015-12-03 10:44:18 -0800 (Thu, 03 Dec 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>Merge <a href="http://trac.webkit.org/projects/webkit/changeset/188238">r188238</a>. rdar://problem/23221163</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#branchessafari601branchSourceWebInspectorUIChangeLog">branches/safari-601-branch/Source/WebInspectorUI/ChangeLog</a></li>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#branchessafari601branchSourceWebInspectorUIUserInterfaceImagesVisualStylePropertyLinkedsvg">branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Images/VisualStylePropertyLinked.svg</a></li>
<li><a href="#branchessafari601branchSourceWebInspectorUIUserInterfaceImagesVisualStylePropertyUnlinkedsvg">branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Images/VisualStylePropertyUnlinked.svg</a></li>
<li><a href="#branchessafari601branchSourceWebInspectorUIUserInterfaceViewsVisualStyleNumberInputBoxcss">branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleNumberInputBox.css</a></li>
<li><a href="#branchessafari601branchSourceWebInspectorUIUserInterfaceViewsVisualStyleNumberInputBoxjs">branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleNumberInputBox.js</a></li>
<li><a href="#branchessafari601branchSourceWebInspectorUIUserInterfaceViewsVisualStylePropertyEditorLinkcss">branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStylePropertyEditorLink.css</a></li>
<li><a href="#branchessafari601branchSourceWebInspectorUIUserInterfaceViewsVisualStylePropertyEditorLinkjs">branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStylePropertyEditorLink.js</a></li>
<li><a href="#branchessafari601branchSourceWebInspectorUIUserInterfaceViewsVisualStyleRelativeNumberSlidercss">branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleRelativeNumberSlider.css</a></li>
<li><a href="#branchessafari601branchSourceWebInspectorUIUserInterfaceViewsVisualStyleRelativeNumberSliderjs">branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleRelativeNumberSlider.js</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="branchessafari601branchSourceWebInspectorUIChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-601-branch/Source/WebInspectorUI/ChangeLog (193079 => 193080)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601-branch/Source/WebInspectorUI/ChangeLog        2015-12-03 18:44:09 UTC (rev 193079)
+++ branches/safari-601-branch/Source/WebInspectorUI/ChangeLog        2015-12-03 18:44:18 UTC (rev 193080)
</span><span class="lines">@@ -1,5 +1,103 @@
</span><span class="cx"> 2015-12-02  Timothy Hatcher  &lt;timothy@apple.com&gt;
</span><span class="cx"> 
</span><ins>+        Merge r188238. rdar://problem/23221163
+
+    2015-08-10  Devin Rousso  &lt;drousso@apple.com&gt;
+
+            Web Inspector: Add numerical input and slider based Visual editors for CSS properties
+            https://bugs.webkit.org/show_bug.cgi?id=147712
+
+            Reviewed by Brian Burg.
+
+            Added editors for CSS properties with numerical values for use in the Visual style
+            details panel in the CSS sidebar, in the form of a combined select and input or an
+            input range.  Also added optional visual linkages to sync values between multiple
+            editors of this type.
+
+            * UserInterface/Images/VisualStylePropertyLinked.svg: Added.
+            * UserInterface/Images/VisualStylePropertyUnlinked.svg: Added.
+
+            * UserInterface/Views/VisualStyleNumberInputBox.css: Added.
+            (.visual-style-property-container &gt; .visual-style-property-value-container.focused &gt; .focus-ring):
+            (.visual-style-property-container &gt; .visual-style-property-value-container &gt; .number-input-keyword-select):
+            (.visual-style-property-container &gt; .visual-style-property-value-container &gt; .number-input-container):
+            (.visual-style-property-container &gt; .visual-style-property-value-container:not(.number-input-editable) &gt; .number-input-container):
+            (.visual-style-property-container &gt; .visual-style-property-value-container &gt; .number-input-container &gt; .number-input-value):
+            (.visual-style-property-container &gt; .visual-style-property-value-container &gt; .number-input-container &gt; span):
+
+            * UserInterface/Views/VisualStyleNumberInputBox.js: Added.
+            (WebInspector.VisualStyleNumberInputBox):
+            (WebInspector.VisualStyleNumberInputBox.prototype.get value):
+            (WebInspector.VisualStyleNumberInputBox.prototype.set value):
+            (WebInspector.VisualStyleNumberInputBox.prototype.get units):
+            (WebInspector.VisualStyleNumberInputBox.prototype.set units):
+            (WebInspector.VisualStyleNumberInputBox.prototype.get placeholder):
+            (WebInspector.VisualStyleNumberInputBox.prototype.set placeholder):
+            (WebInspector.VisualStyleNumberInputBox.prototype.get synthesizedValue):
+            (WebInspector.VisualStyleNumberInputBox.prototype.get numberInputEditable):
+            (WebInspector.VisualStyleNumberInputBox.prototype.updateValueFromText):
+            (WebInspector.VisualStyleNumberInputBox.prototype.parseValue):
+            (WebInspector.VisualStyleNumberInputBox.prototype._keywordChanged):
+            (WebInspector.VisualStyleNumberInputBox.prototype._valueNumberInputKeyDown.shiftValue):
+            (WebInspector.VisualStyleNumberInputBox.prototype._valueNumberInputKeyDown):
+            (WebInspector.VisualStyleNumberInputBox.prototype._numberInputChanged):
+            (WebInspector.VisualStyleNumberInputBox.prototype._keywordSelectMouseDown):
+            (WebInspector.VisualStyleNumberInputBox.prototype._createValueOptions):
+            (WebInspector.VisualStyleNumberInputBox.prototype._createUnitOptions):
+            (WebInspector.VisualStyleNumberInputBox.prototype._addAdvancedUnits):
+            (WebInspector.VisualStyleNumberInputBox.prototype._removeAdvancedUnits):
+            (WebInspector.VisualStyleNumberInputBox.prototype._focusContentElement):
+            (WebInspector.VisualStyleNumberInputBox.prototype._blurContentElement):
+            (WebInspector.VisualStyleNumberInputBox.prototype._toggleTabbingOfSelectableElements):
+
+            * UserInterface/Views/VisualStylePropertyEditorLink.css: Added.
+            (.visual-style-property-editor-link):
+            (.visual-style-property-editor-link.disabled):
+            (.visual-style-property-editor-link.link-all):
+            (.visual-style-property-editor-link.link-all.linked):
+            (.visual-style-property-editor-link &gt; .visual-style-property-editor-link-border):
+            (.visual-style-property-editor-link.link-all.linked &gt; .visual-style-property-editor-link-icon:hover + .visual-style-property-editor-link-border.right):
+            (.visual-style-property-editor-link.link-all.linked &gt; .visual-style-property-editor-link-border.left):
+            (.visual-style-property-editor-link.link-all.linked &gt; .visual-style-property-editor-link-border.right):
+            (.visual-style-property-editor-link.linked &gt; .visual-style-property-editor-link-border):
+            (.visual-style-property-editor-link &gt; .visual-style-property-editor-link-border.left):
+            (.visual-style-property-editor-link &gt; .visual-style-property-editor-link-border.right):
+            (.visual-style-property-editor-link:not(.link-all) &gt; .visual-style-property-editor-link-border):
+            (.visual-style-property-editor-link:not(.link-all).linked &gt; .visual-style-property-editor-link-border):
+            (.visual-style-property-editor-link &gt; .visual-style-property-editor-link-icon):
+            (.visual-style-property-editor-link &gt; .visual-style-property-editor-link-icon &gt; .unlinked-icon):
+            (.visual-style-property-editor-link &gt; .visual-style-property-editor-link-icon &gt; .unlinked-icon svg .filled):
+            (.visual-style-property-editor-link &gt; .visual-style-property-editor-link-icon &gt; .unlinked-icon svg .stroked):
+            (.visual-style-property-editor-link:not(.link-all) &gt; .visual-style-property-editor-link-icon):
+            (.visual-style-property-editor-link.link-all &gt; .visual-style-property-editor-link-icon):
+
+            * UserInterface/Views/VisualStylePropertyEditorLink.js: Added.
+            (WebInspector.VisualStylePropertyEditorLink):
+            (WebInspector.VisualStylePropertyEditorLink.prototype.get element):
+            (WebInspector.VisualStylePropertyEditorLink.prototype.set disabled):
+            (WebInspector.VisualStylePropertyEditorLink.prototype._linkedPropertyValueChanged):
+            (WebInspector.VisualStylePropertyEditorLink.prototype._updateLinkedEditors):
+            (WebInspector.VisualStylePropertyEditorLink.prototype._iconMouseover):
+            (WebInspector.VisualStylePropertyEditorLink.prototype._iconMouseout):
+            (WebInspector.VisualStylePropertyEditorLink.prototype._iconClicked):
+
+            * UserInterface/Views/VisualStyleRelativeNumberSlider.css: Added.
+            (.visual-style-property-container.number-input-box.relative-number-slider &gt; .visual-style-property-title):
+            (.visual-style-property-container.number-input-box.relative-number-slider &gt; .visual-style-property-value-container):
+            (.visual-style-property-container.number-input-box.relative-number-slider.disabled &gt; .relative-slider):
+            (.visual-style-property-container.number-input-box.relative-number-slider &gt; .visual-style-property-value-container.no-values.no-units):
+            (.visual-style-property-container.number-input-box.relative-number-slider &gt; .relative-slider):
+
+            * UserInterface/Views/VisualStyleRelativeNumberSlider.js: Added.
+            (WebInspector.VisualStyleRelativeNumberSlider):
+            (WebInspector.VisualStyleRelativeNumberSlider.prototype.set scale):
+            (WebInspector.VisualStyleRelativeNumberSlider.prototype.updateEditorValues):
+            (WebInspector.VisualStyleRelativeNumberSlider.prototype._resetSlider):
+            (WebInspector.VisualStyleRelativeNumberSlider.prototype._sliderChanged):
+            (WebInspector.VisualStyleRelativeNumberSlider.prototype._numberInputChanged):
+
+2015-12-02  Timothy Hatcher  &lt;timothy@apple.com&gt;
+
</ins><span class="cx">         Merge r188229. rdar://problem/23221163
</span><span class="cx"> 
</span><span class="cx">     2015-08-10  Devin Rousso  &lt;drousso@apple.com&gt;
</span></span></pre></div>
<a id="branchessafari601branchSourceWebInspectorUIUserInterfaceImagesVisualStylePropertyLinkedsvg"></a>
<div class="addfile"><h4>Added: branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Images/VisualStylePropertyLinked.svg (0 => 193080)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Images/VisualStylePropertyLinked.svg                                (rev 0)
+++ branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Images/VisualStylePropertyLinked.svg        2015-12-03 18:44:18 UTC (rev 193080)
</span><span class="lines">@@ -0,0 +1,5 @@
</span><ins>+&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
+&lt;!-- Copyright © 2015 Apple Inc. All rights reserved. --&gt;
+&lt;svg version=&quot;1.1&quot; xmlns=&quot;http://www.w3.org/2000/svg&quot; viewBox=&quot;0 0 16 16&quot;&gt;
+    &lt;circle class=&quot;filled&quot; cx=&quot;8&quot; cy=&quot;8&quot; r=&quot;4&quot; fill=&quot;black&quot; stroke=&quot;none&quot; /&gt;
+&lt;/svg&gt;
</ins></span></pre></div>
<a id="branchessafari601branchSourceWebInspectorUIUserInterfaceImagesVisualStylePropertyUnlinkedsvg"></a>
<div class="addfile"><h4>Added: branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Images/VisualStylePropertyUnlinked.svg (0 => 193080)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Images/VisualStylePropertyUnlinked.svg                                (rev 0)
+++ branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Images/VisualStylePropertyUnlinked.svg        2015-12-03 18:44:18 UTC (rev 193080)
</span><span class="lines">@@ -0,0 +1,6 @@
</span><ins>+&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
+&lt;!-- Copyright © 2015 Apple Inc. All rights reserved. --&gt;
+&lt;svg version=&quot;1.1&quot; xmlns=&quot;http://www.w3.org/2000/svg&quot; viewBox=&quot;0 0 16 16&quot;&gt;
+    &lt;path class=&quot;filled&quot; d=&quot;M 10 4 C 16 4 16 12 10 12&quot; stroke=&quot;none&quot; /&gt;
+    &lt;path class=&quot;filled&quot; d=&quot;M 6 4 C 0 4 0 12 6 12&quot; stroke=&quot;none&quot; /&gt;
+&lt;/svg&gt;
</ins></span></pre></div>
<a id="branchessafari601branchSourceWebInspectorUIUserInterfaceViewsVisualStyleNumberInputBoxcss"></a>
<div class="addfile"><h4>Added: branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleNumberInputBox.css (0 => 193080)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleNumberInputBox.css                                (rev 0)
+++ branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleNumberInputBox.css        2015-12-03 18:44:18 UTC (rev 193080)
</span><span class="lines">@@ -0,0 +1,74 @@
</span><ins>+/*
+ * Copyright (C) 2015 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
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+.visual-style-property-container &gt; .visual-style-property-value-container.focused &gt; .focus-ring {
+    position: absolute;
+    top: 2px;
+    left: 1px;
+    width: calc(100% - 2px);
+    height: 16px;
+    border-radius: 3px;
+    box-shadow: hsla(0, 0%, 0%, 0.15) 0 1px 0, 0 0 0 3px hsla(211, 96%, 48%, 0.25);
+    pointer-events: none;
+}
+
+.visual-style-property-container &gt; .visual-style-property-value-container &gt; .number-input-keyword-select {
+    outline: none;
+}
+
+.visual-style-property-container &gt; .visual-style-property-value-container &gt; .number-input-container {
+    display: flex;
+    position: absolute;
+    top: 2px;
+    left: 1px;
+    width: calc(100% - 20px);
+    line-height: 16px;
+    text-align: right;
+    border-radius: 4px;
+    background-color: hsl(0, 100%, 100%);
+    pointer-events: none;
+    overflow: hidden;
+    white-space: nowrap;
+}
+
+.visual-style-property-container &gt; .visual-style-property-value-container:not(.number-input-editable) &gt; .number-input-container {
+    display: none;
+}
+
+.visual-style-property-container &gt; .visual-style-property-value-container &gt; .number-input-container &gt; .number-input-value {
+    width: 100%;
+    height: 16px;
+    margin-right: 1px;
+    padding: 0 0 1px 3px;
+    border-bottom-left-radius: 3px;
+    text-align: right;
+    border: none;
+    outline: none;
+    pointer-events: all;
+}
+
+.visual-style-property-container &gt; .visual-style-property-value-container &gt; .number-input-container &gt; span {
+    min-width: -webkit-fit-content;
+}
</ins></span></pre></div>
<a id="branchessafari601branchSourceWebInspectorUIUserInterfaceViewsVisualStyleNumberInputBoxjs"></a>
<div class="addfile"><h4>Added: branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleNumberInputBox.js (0 => 193080)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleNumberInputBox.js                                (rev 0)
+++ branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleNumberInputBox.js        2015-12-03 18:44:18 UTC (rev 193080)
</span><span class="lines">@@ -0,0 +1,334 @@
</span><ins>+/*
+ * Copyright (C) 2015 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
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+WebInspector.VisualStyleNumberInputBox = class VisualStyleNumberInputBox extends WebInspector.VisualStylePropertyEditor
+{
+    constructor(propertyNames, text, possibleValues, possibleUnits, allowNegativeValues, layoutReversed)
+    {
+        super(propertyNames, text, possibleValues, possibleUnits || [WebInspector.UIString(&quot;No Units&quot;)], &quot;number-input-box&quot;, layoutReversed);
+
+        this._hasUnits = !!possibleUnits;
+        this._allowNegativeValues = !!allowNegativeValues || false;
+
+        this.contentElement.classList.toggle(&quot;no-values&quot;, !possibleValues || !possibleValues.length);
+        this.contentElement.classList.toggle(&quot;no-units&quot;, !this._hasUnits);
+
+        var focusRingElement = document.createElement(&quot;div&quot;);
+        focusRingElement.classList.add(&quot;focus-ring&quot;);
+        this.contentElement.appendChild(focusRingElement);
+
+        this._keywordSelectElement = document.createElement(&quot;select&quot;);
+        this._keywordSelectElement.classList.add(&quot;number-input-keyword-select&quot;);
+        if (this._possibleUnits.advanced)
+            this._keywordSelectElement.title = WebInspector.UIString(&quot;Option-click to show all units&quot;);
+
+        if (this._possibleValues) {
+            this._createValueOptions(this._possibleValues.basic);
+            this._keywordSelectElement.appendChild(document.createElement(&quot;hr&quot;));
+        }
+
+        if (this._possibleUnits)
+            this._createUnitOptions(this._possibleUnits.basic);
+
+        this._advancedUnitsElements = null;
+
+        this._keywordSelectElement.addEventListener(&quot;focus&quot;, this._focusContentElement.bind(this));
+        this._keywordSelectElement.addEventListener(&quot;mousedown&quot;, this._keywordSelectMouseDown.bind(this));
+        this._keywordSelectElement.addEventListener(&quot;change&quot;, this._keywordChanged.bind(this));
+        this._keywordSelectElement.addEventListener(&quot;blur&quot;, this._blurContentElement.bind(this));
+        this.contentElement.appendChild(this._keywordSelectElement);
+
+        this._numberUnitsContainer = document.createElement(&quot;div&quot;);
+        this._numberUnitsContainer.classList.add(&quot;number-input-container&quot;);
+
+        this._valueNumberInputElement = document.createElement(&quot;input&quot;);
+        this._valueNumberInputElement.classList.add(&quot;number-input-value&quot;);
+        this._valueNumberInputElement.spellcheck = false;
+        this._valueNumberInputElement.addEventListener(&quot;focus&quot;, this._focusContentElement.bind(this));
+        this._valueNumberInputElement.addEventListener(&quot;keydown&quot;, this._valueNumberInputKeyDown.bind(this));
+        this._valueNumberInputElement.addEventListener(&quot;keyup&quot;, this._numberInputChanged.bind(this));
+        this._valueNumberInputElement.addEventListener(&quot;blur&quot;, this._blurContentElement.bind(this));
+        this._numberUnitsContainer.appendChild(this._valueNumberInputElement);
+
+        this._unitsElement = document.createElement(&quot;span&quot;);
+        this._numberUnitsContainer.appendChild(this._unitsElement);
+        this.contentElement.appendChild(this._numberUnitsContainer);
+
+        this._numberInputIsEditable = true;
+        this.contentElement.classList.add(&quot;number-input-editable&quot;);
+        this._valueNumberInputElement.value = null;
+        this._valueNumberInputElement.setAttribute(&quot;placeholder&quot;, 0);
+        if (this._hasUnits &amp;&amp; this.valueIsSupportedUnit(&quot;px&quot;))
+            this._unitsElement.textContent = this._keywordSelectElement.value = &quot;px&quot;;
+    }
+
+    // Public
+
+    get value()
+    {
+        if (this._numberInputIsEditable)
+            return parseFloat(this._valueNumberInputElement.value);
+
+        if (!this._numberInputIsEditable)
+            return this._keywordSelectElement.value;
+
+        return null;
+    }
+
+    set value(value)
+    {
+        if (value &amp;&amp; value === this.value)
+            return;
+
+        if (!isNaN(value)) {
+            this._numberInputIsEditable = true;
+            this.contentElement.classList.add(&quot;number-input-editable&quot;);
+            this._valueNumberInputElement.value = value;
+            return;
+        }
+
+        if (!value) {
+            this._valueNumberInputElement.value = null;
+            return;
+        }
+
+        if (this.valueIsSupportedKeyword(value)) {
+            this._numberInputIsEditable = false;
+            this.contentElement.classList.remove(&quot;number-input-editable&quot;);
+            this._keywordSelectElement.value = value;
+            return;
+        }
+    }
+
+    get units()
+    {
+        var keyword = this._keywordSelectElement.value;
+        if (!this.valueIsSupportedUnit(keyword))
+            return;
+
+        return keyword;
+    }
+
+    set units(unit)
+    {
+        if (!unit || unit === this.units)
+            return;
+
+        if (!this.valueIsSupportedUnit(unit))
+            return;
+
+        if (this._valueIsSupportedAdvancedUnit(unit))
+            this._addAdvancedUnits();
+
+        this._numberInputIsEditable = true;
+        this.contentElement.classList.add(&quot;number-input-editable&quot;);
+        this._keywordSelectElement.value = unit;
+
+        if (this._hasUnits)
+            this._unitsElement.textContent = unit;
+    }
+
+    get placeholder()
+    {
+        return this._valueNumberInputElement.getAttribute(&quot;placeholder&quot;);
+    }
+
+    set placeholder(text)
+    {
+        if (text === this.placeholder)
+            return;
+
+        var onlyNumericalText = !isNaN(text) &amp;&amp; text;
+        this._valueNumberInputElement.setAttribute(&quot;placeholder&quot;, onlyNumericalText || 0);
+    }
+
+    get synthesizedValue()
+    {
+        var value = this._valueNumberInputElement.value;
+        if (this._numberInputIsEditable &amp;&amp; !value)
+            return null;
+
+        var keyword = this._keywordSelectElement.value;
+        return this.valueIsSupportedUnit(keyword) ? value + (this._hasUnits ? keyword : &quot;&quot;) : keyword;
+    }
+
+    updateValueFromText(text, value)
+    {
+        var match = this.parseValue(value);
+        this.value = match ? match[1] : value;
+        this.units = match ? match[2] : null;
+        return this.modifyPropertyText(text, value);
+    }
+
+    // Protected
+
+    parseValue(text)
+    {
+        return /^(-?[\d.]+)([^\s\d]{0,4})(?:\s*;?)$/.exec(text);
+    }
+
+    // Private
+
+    _keywordChanged()
+    {
+        var selectedKeywordIsUnit = this.valueIsSupportedUnit(this._keywordSelectElement.value);
+        if (!this._numberInputIsEditable &amp;&amp; selectedKeywordIsUnit)
+            this._valueNumberInputElement.value = null;
+
+        if (this._hasUnits)
+            this._unitsElement.textContent = this._keywordSelectElement.value;
+
+        this._numberInputIsEditable = selectedKeywordIsUnit;
+        this.contentElement.classList.toggle(&quot;number-input-editable&quot;, selectedKeywordIsUnit);
+        this._valueDidChange();
+    }
+
+    _valueNumberInputKeyDown(event)
+    {
+        if (!this._numberInputIsEditable)
+            return;
+
+        function adjustValue(delta)
+        {
+            var newValue;
+            var value = this.value;
+            if (!value &amp;&amp; isNaN(value)) {
+                var placeholderValue = this.placeholder &amp;&amp; !isNaN(this.placeholder) ? parseFloat(this.placeholder) : 0;
+                newValue = placeholderValue + delta;
+            } else
+                newValue = value + delta;
+
+            if (!this._allowNegativeValues &amp;&amp; newValue &lt; 0)
+                newValue = 0;
+
+            this.value = Math.round(newValue * 100) / 100;
+            this._valueDidChange();
+        }
+
+        var shift = 1;
+        if (event.ctrlKey)
+            shift /= 10;
+        else if (event.shiftKey)
+            shift *= 10;
+
+        var key = event.keyIdentifier;
+        if (key.startsWith(&quot;Page&quot;))
+            shift *= 10;
+
+        if (key === &quot;Up&quot; || key === &quot;PageUp&quot;) {
+            event.preventDefault();
+            adjustValue.call(this, shift);
+            return;
+        }
+
+        if (key === &quot;Down&quot; || key === &quot;PageDown&quot;) {
+            event.preventDefault();
+            adjustValue.call(this, -shift);
+            return;
+        }
+
+        this._valueDidChange();
+    }
+
+    _numberInputChanged()
+    {
+        if (!this._numberInputIsEditable)
+            return;
+
+        this._valueDidChange();
+    }
+
+    _keywordSelectMouseDown(event)
+    {
+        if (event.altKey)
+            this._addAdvancedUnits();
+        else if (!this._valueIsSupportedAdvancedUnit())
+            this._removeAdvancedUnits();
+    }
+
+    _createValueOptions(values)
+    {
+        var addedElements = [];
+        for (let key in values) {
+            var option = document.createElement(&quot;option&quot;);
+            option.value = key;
+            option.text = values[key];
+            this._keywordSelectElement.appendChild(option);
+            addedElements.push(option);
+        }
+
+        return addedElements;
+    }
+
+    _createUnitOptions(units)
+    {
+        var addedElements = [];
+        for (let unit of units) {
+            var option = document.createElement(&quot;option&quot;);
+            option.text = unit;
+            this._keywordSelectElement.appendChild(option);
+            addedElements.push(option);
+        }
+
+        return addedElements;
+    }
+
+    _addAdvancedUnits()
+    {
+        if (this._advancedUnitsElements)
+            return;
+
+        this._keywordSelectElement.appendChild(document.createElement(&quot;hr&quot;));
+        this._advancedUnitsElements = this._createUnitOptions(this._possibleUnits.advanced);
+    }
+
+    _removeAdvancedUnits()
+    {
+        if (!this._advancedUnitsElements)
+            return;
+
+        this._keywordSelectElement.removeChild(this._advancedUnitsElements[0].previousSibling);
+        for (let element of this._advancedUnitsElements)
+            this._keywordSelectElement.removeChild(element);
+
+        this._advancedUnitsElements = null;
+    }
+
+    _focusContentElement(event)
+    {
+        this.contentElement.classList.add(&quot;focused&quot;);
+    }
+
+    _blurContentElement(event)
+    {
+        this.contentElement.classList.remove(&quot;focused&quot;);
+    }
+
+    _toggleTabbingOfSelectableElements(disabled)
+    {
+        this._keywordSelectElement.tabIndex = disabled ? &quot;-1&quot; : null;
+        this._valueNumberInputElement.tabIndex = disabled ? &quot;-1&quot; : null;
+    }
+};
</ins></span></pre></div>
<a id="branchessafari601branchSourceWebInspectorUIUserInterfaceViewsVisualStylePropertyEditorLinkcss"></a>
<div class="addfile"><h4>Added: branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStylePropertyEditorLink.css (0 => 193080)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStylePropertyEditorLink.css                                (rev 0)
+++ branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStylePropertyEditorLink.css        2015-12-03 18:44:18 UTC (rev 193080)
</span><span class="lines">@@ -0,0 +1,127 @@
</span><ins>+/*
+ * Copyright (C) 2015 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
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+.visual-style-property-editor-link {
+    position: relative;
+    min-width: 32px;
+    margin-left: 1px;
+}
+
+.visual-style-property-editor-link.disabled {
+    visibility: hidden;
+}
+
+.visual-style-property-editor-link.link-all {
+    height: 13px;
+    margin: 0 auto 2px;
+    padding: 0 50px;
+    border-top-width: 0;
+    border-right-width: 1px;
+    border-bottom-width: 0;
+    border-left-width: 1px;
+    border-color: hsl(0, 0%, 50%);
+    border-style: dashed;
+}
+
+.visual-style-property-editor-link.link-all.linked {
+    border-color: black;
+    border-style: solid;
+}
+
+.visual-style-property-editor-link &gt; .visual-style-property-editor-link-border {
+    position: absolute;
+    top: -webkit-calc(50% - 0.5px);
+    width: 48px;
+    border-top: 1px dashed hsl(0, 0%, 50%);
+}
+
+.visual-style-property-editor-link.link-all &gt; .visual-style-property-editor-link-border.left,
+.visual-style-property-editor-link.link-all.linked &gt; .visual-style-property-editor-link-icon:hover + .visual-style-property-editor-link-border.right  {
+    width: 49px;
+}
+
+.visual-style-property-editor-link.link-all.linked &gt; .visual-style-property-editor-link-border.left {
+    width: 52px;
+}
+
+.visual-style-property-editor-link.link-all.linked &gt; .visual-style-property-editor-link-border.right {
+    width: 51px;
+}
+
+.visual-style-property-editor-link.linked &gt; .visual-style-property-editor-link-border {
+    border-top: 1px solid hsl(0, 0, 0);
+}
+
+.visual-style-property-editor-link &gt; .visual-style-property-editor-link-border.left {
+    left: 1px;
+}
+
+.visual-style-property-editor-link &gt; .visual-style-property-editor-link-border.right {
+    right: 1px;
+}
+
+.visual-style-property-editor-link.link-all.linked &gt; .visual-style-property-editor-link-border.left {
+    left: 0;
+}
+
+.visual-style-property-editor-link.link-all.linked &gt; .visual-style-property-editor-link-border.right {
+    right: 0;
+}
+
+.visual-style-property-editor-link:not(.link-all) &gt; .visual-style-property-editor-link-border {
+    width: 10px;
+    top: -webkit-calc(50% - 1px);
+}
+
+.visual-style-property-editor-link:not(.link-all).linked &gt; .visual-style-property-editor-link-border {
+    width: 12px;
+}
+
+.visual-style-property-editor-link &gt; .visual-style-property-editor-link-icon {
+    width: 10px;
+    height: 10px;
+}
+
+.visual-style-property-editor-link &gt; .visual-style-property-editor-link-icon &gt; .unlinked-icon {
+    position: relative;
+    background-color: hsl(0, 100%, 100%);
+    z-index: 1;
+}
+
+.visual-style-property-editor-link &gt; .visual-style-property-editor-link-icon &gt; .unlinked-icon svg .filled {
+    fill: hsl(0, 0%, 50%);
+}
+
+.visual-style-property-editor-link &gt; .visual-style-property-editor-link-icon &gt; .unlinked-icon svg .stroked {
+    stroke: hsl(0, 0%, 50%);
+}
+
+.visual-style-property-editor-link:not(.link-all) &gt; .visual-style-property-editor-link-icon {
+    margin: 5px 0 0 11px;
+}
+
+.visual-style-property-editor-link.link-all &gt; .visual-style-property-editor-link-icon {
+    margin-top: 1px;
+}
</ins></span></pre></div>
<a id="branchessafari601branchSourceWebInspectorUIUserInterfaceViewsVisualStylePropertyEditorLinkjs"></a>
<div class="addfile"><h4>Added: branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStylePropertyEditorLink.js (0 => 193080)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStylePropertyEditorLink.js                                (rev 0)
+++ branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStylePropertyEditorLink.js        2015-12-03 18:44:18 UTC (rev 193080)
</span><span class="lines">@@ -0,0 +1,142 @@
</span><ins>+/*
+ * Copyright (C) 2015 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
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+WebInspector.VisualStylePropertyEditorLink = class VisualStylePropertyEditorLink extends WebInspector.Object
+{
+    constructor(linkedProperties, className, linksToHideWhenLinked)
+    {
+        super();
+
+        this._linkedProperties = linkedProperties || [];
+        this._linksToHideWhenLinked = linksToHideWhenLinked || [];
+        this._lastPropertyEdited = null;
+
+        for (let property of this._linkedProperties)
+            property.addEventListener(WebInspector.VisualStylePropertyEditor.Event.ValueDidChange, this._linkedPropertyValueChanged, this);
+
+        this._element = document.createElement(&quot;div&quot;);
+        this._element.classList.add(&quot;visual-style-property-editor-link&quot;, className || &quot;&quot;);
+
+        var leftLineElement = document.createElement(&quot;div&quot;);
+        leftLineElement.classList.add(&quot;visual-style-property-editor-link-border&quot;, &quot;left&quot;);
+        this._element.appendChild(leftLineElement);
+
+        this._iconElement = document.createElement(&quot;div&quot;);
+        this._iconElement.classList.add(&quot;visual-style-property-editor-link-icon&quot;);
+        this._iconElement.title = WebInspector.UIString(&quot;Click to link property values&quot;);
+        this._iconElement.addEventListener(&quot;mouseover&quot;, this._iconMouseover.bind(this));
+        this._iconElement.addEventListener(&quot;mouseout&quot;, this._iconMouseout.bind(this));
+        this._iconElement.addEventListener(&quot;click&quot;, this._iconClicked.bind(this));
+
+        wrappedSVGDocument(&quot;Images/VisualStylePropertyUnlinked.svg&quot;, &quot;unlinked-icon&quot;, null, function(wrapper) {
+            this._iconElement.appendChild(wrapper);
+            this._unlinkedIcon = wrapper;
+        }.bind(this));
+
+        wrappedSVGDocument(&quot;Images/VisualStylePropertyLinked.svg&quot;, &quot;linked-icon&quot;, null, function(wrapper) {
+            this._iconElement.appendChild(wrapper);
+            this._linkedIcon = wrapper;
+            this._linkedIcon.hidden = true;
+        }.bind(this));
+
+        this._element.appendChild(this._iconElement);
+
+        var rightLineElement = document.createElement(&quot;div&quot;);
+        rightLineElement.classList.add(&quot;visual-style-property-editor-link-border&quot;, &quot;right&quot;);
+        this._element.appendChild(rightLineElement);
+
+        this._linked = false;
+        this._disabled = false;
+    }
+
+    // Public
+
+    get element()
+    {
+        return this._element;
+    }
+
+    set disabled(flag)
+    {
+        this._disabled = flag;
+        this._element.classList.toggle(&quot;disabled&quot;, this._disabled);
+    }
+
+    // Private
+
+    _linkedPropertyValueChanged(event)
+    {
+        if (!event)
+            return;
+
+        var property = event.target;
+        if (!property)
+            return;
+
+        this._lastPropertyEdited = property;
+        if (!this._linked)
+            return;
+
+        this._updateLinkedEditors(property);
+    }
+
+    _updateLinkedEditors(property)
+    {
+        var style = property.style;
+        var text = style.text;
+        var value = property.synthesizedValue || null;
+
+        for (let linkedProperty of this._linkedProperties)
+            text = linkedProperty.updateValueFromText(text, value);
+
+        style.text = text;
+    }
+
+    _iconMouseover()
+    {
+        this._linkedIcon.hidden = this._linked;
+        this._unlinkedIcon.hidden = !this._linked;
+    }
+
+    _iconMouseout()
+    {
+        this._linkedIcon.hidden = !this._linked;
+        this._unlinkedIcon.hidden = this._linked;
+    }
+
+    _iconClicked()
+    {
+        this._linked = !this._linked;
+        this._element.classList.toggle(&quot;linked&quot;, this._linked);
+        this._linkedIcon.hidden = !this._linked;
+        this._unlinkedIcon.hidden = this._linked;
+
+        this._iconElement.title = this._linked ? WebInspector.UIString(&quot;Click to remove link&quot;) : WebInspector.UIString(&quot;Click to link property values&quot;);
+
+        this._updateLinkedEditors(this._lastPropertyEdited || this._linkedProperties[0]);
+        for (let linkToHide of this._linksToHideWhenLinked)
+            linkToHide.disabled = this._linked;
+    }
+};
</ins></span></pre></div>
<a id="branchessafari601branchSourceWebInspectorUIUserInterfaceViewsVisualStyleRelativeNumberSlidercss"></a>
<div class="addfile"><h4>Added: branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleRelativeNumberSlider.css (0 => 193080)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleRelativeNumberSlider.css                                (rev 0)
+++ branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleRelativeNumberSlider.css        2015-12-03 18:44:18 UTC (rev 193080)
</span><span class="lines">@@ -0,0 +1,47 @@
</span><ins>+/*
+ * Copyright (C) 2015 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
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+.visual-style-property-container.number-input-box.relative-number-slider &gt; .visual-style-property-title {
+    margin-right: 3px;
+}
+
+.visual-style-property-container.number-input-box.relative-number-slider &gt; .visual-style-property-value-container {
+    order: 2;
+}
+
+.visual-style-property-container.number-input-box.relative-number-slider &gt; .visual-style-property-value-container:not(.number-input-editable) + .relative-slider,
+.visual-style-property-container.number-input-box.relative-number-slider.disabled &gt; .relative-slider {
+    opacity: 0.5;
+    pointer-events: none;
+}
+
+.visual-style-property-container.number-input-box.relative-number-slider &gt; .visual-style-property-value-container.no-values.no-units {
+    display: none;
+}
+
+.visual-style-property-container.number-input-box.relative-number-slider &gt; .relative-slider {
+    width: 47%;
+    margin-right: 7px;
+}
</ins></span></pre></div>
<a id="branchessafari601branchSourceWebInspectorUIUserInterfaceViewsVisualStyleRelativeNumberSliderjs"></a>
<div class="addfile"><h4>Added: branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleRelativeNumberSlider.js (0 => 193080)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleRelativeNumberSlider.js                                (rev 0)
+++ branches/safari-601-branch/Source/WebInspectorUI/UserInterface/Views/VisualStyleRelativeNumberSlider.js        2015-12-03 18:44:18 UTC (rev 193080)
</span><span class="lines">@@ -0,0 +1,88 @@
</span><ins>+/*
+ * Copyright (C) 2015 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
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+WebInspector.VisualStyleRelativeNumberSlider = class VisualStyleRelativeNumberSlider extends WebInspector.VisualStyleNumberInputBox
+{
+    constructor(propertyNames, text, possibleValues, possibleUnits, allowNegativeValues, layoutReversed)
+    {
+        super(propertyNames, text, possibleValues, possibleUnits, allowNegativeValues, layoutReversed);
+
+        this._element.classList.add(&quot;relative-number-slider&quot;);
+
+        this._sliderElement = document.createElement(&quot;input&quot;);
+        this._sliderElement.classList.add(&quot;relative-slider&quot;);
+        this._sliderElement.type = &quot;range&quot;;
+        this._sliderElement.addEventListener(&quot;input&quot;, this._sliderChanged.bind(this));
+        this._element.appendChild(this._sliderElement);
+
+        this._startingValue = null;
+        this._scale = 100;
+    }
+
+    // Public
+
+    set scale(scale)
+    {
+        this._scale = scale || 1;
+    }
+
+    updateEditorValues(updatedValues)
+    {
+        super.updateEditorValues(updatedValues);
+        this._resetSlider();
+    }
+
+    // Private
+
+    _resetSlider()
+    {
+        this._startingValue = parseFloat(this._valueNumberInputElement.value);
+        if (isNaN(this._startingValue))
+            this._startingValue = parseFloat(this.placeholder) || 0;
+
+        var origin = this._scale / 2;
+        if (this._allowNegativeValues || this._startingValue &gt; origin) {
+            this._sliderElement.min = -origin;
+            this._sliderElement.max = origin;
+            this._sliderElement.value = 0;
+        } else {
+            this._sliderElement.min = 0;
+            this._sliderElement.max = this._scale;
+            this._sliderElement.value = this._startingValue;
+        }
+    }
+
+    _sliderChanged()
+    {
+        this.value = this._startingValue + Math.round(parseFloat(this._sliderElement.value) * 100) / 100;
+        this._valueDidChange();
+    }
+
+    _numberInputChanged()
+    {
+        super._numberInputChanged();
+        this._resetSlider();
+    }
+};
</ins></span></pre>
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