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<title>[24020] trunk/wp-admin: Revisions UI: Disable previous and next buttons when you're on the first, and last node.</title>
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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/24020">24020</a></dd>
<dt>Author</dt> <dd>ocean90</dd>
<dt>Date</dt> <dd>2013-04-17 20:12:25 +0000 (Wed, 17 Apr 2013)</dd>
</dl>

<h3>Log Message</h3>
<pre>Revisions UI: Disable previous and next buttons when you're on the first, and last node. Put revision ticks above the slider range. props lessbloat for initial patch. see <a href="http://core.trac.wordpress.org/ticket/23899">#23899</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkwpadmincsscolorsclassiccss">trunk/wp-admin/css/colors-classic.css</a></li>
<li><a href="#trunkwpadmincsscolorsfreshcss">trunk/wp-admin/css/colors-fresh.css</a></li>
<li><a href="#trunkwpadmincsswpadmincss">trunk/wp-admin/css/wp-admin.css</a></li>
<li><a href="#trunkwpadminjsrevisionsjs">trunk/wp-admin/js/revisions.js</a></li>
</ul>

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<div id="patch">
<h3>Diff</h3>
<a id="trunkwpadmincsscolorsclassiccss"></a>
<div class="modfile"><h4>Modified: trunk/wp-admin/css/colors-classic.css (24019 => 24020)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-admin/css/colors-classic.css        2013-04-17 19:34:21 UTC (rev 24019)
+++ trunk/wp-admin/css/colors-classic.css        2013-04-17 20:12:25 UTC (rev 24020)
</span><span class="lines">@@ -1491,7 +1491,7 @@
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> .revision-tick.completed-true {
</span><del>-        background-color: #aaa;
</del><ins>+        background-color: #d1e5ee;
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> .diff-label {
</span></span></pre></div>
<a id="trunkwpadmincsscolorsfreshcss"></a>
<div class="modfile"><h4>Modified: trunk/wp-admin/css/colors-fresh.css (24019 => 24020)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-admin/css/colors-fresh.css        2013-04-17 19:34:21 UTC (rev 24019)
+++ trunk/wp-admin/css/colors-fresh.css        2013-04-17 20:12:25 UTC (rev 24020)
</span><span class="lines">@@ -1385,7 +1385,7 @@
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> .revision-tick.completed-true {
</span><del>-        background-color: #aaa;
</del><ins>+        background-color: #d7d7d7;
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> .diff-label {
</span></span></pre></div>
<a id="trunkwpadmincsswpadmincss"></a>
<div class="modfile"><h4>Modified: trunk/wp-admin/css/wp-admin.css (24019 => 24020)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-admin/css/wp-admin.css        2013-04-17 19:34:21 UTC (rev 24019)
+++ trunk/wp-admin/css/wp-admin.css        2013-04-17 20:12:25 UTC (rev 24020)
</span><span class="lines">@@ -3628,7 +3628,7 @@
</span><span class="cx"> 
</span><span class="cx"> #diff-slider-ticks {
</span><span class="cx">         position: absolute;
</span><del>-        z-index: 1;
</del><ins>+        z-index: 2;
</ins><span class="cx">         margin-top: 20px;
</span><span class="cx"> }
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkwpadminjsrevisionsjs"></a>
<div class="modfile"><h4>Modified: trunk/wp-admin/js/revisions.js (24019 => 24020)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-admin/js/revisions.js        2013-04-17 19:34:21 UTC (rev 24019)
+++ trunk/wp-admin/js/revisions.js        2013-04-17 20:12:25 UTC (rev 24020)
</span><span class="lines">@@ -243,6 +243,24 @@
</span><span class="cx">                         this.reloadRight();
</span><span class="cx">                 },
</span><span class="cx"> 
</span><ins>+                disabledButtonCheck: function( val ) {
+                        var maxVal = this.revisions.length - 1,
+                                next = $( '#next' ),
+                                prev = $( '#previous' );
+
+                        // Disable &quot;Next&quot; button if you're on the last node
+                        if ( maxVal === val )
+                                next.prop( 'disabled', true );
+                        else
+                                next.prop( 'disabled', false );
+
+                        // Disable &quot;Previous&quot; button if you're on the 0 node
+                        if ( 0 === val )
+                                prev.prop( 'disabled', true );
+                        else
+                                prev.prop( 'disabled', false );
+                },
+
</ins><span class="cx">                 completeApplicationSetup: function() {
</span><span class="cx">                         this.revisionView = new revisions.view.Diff({
</span><span class="cx">                                 model: this.revisions
</span><span class="lines">@@ -293,6 +311,7 @@
</span><span class="cx">                         if ( this.singleRevision ) {
</span><span class="cx">                                 Diff.rightDiff = ( ui.value + 1 );
</span><span class="cx">                                 Diff.revisionView.render();
</span><ins>+                                Diff.disabledButtonCheck( ui.value );
</ins><span class="cx">                         } else {
</span><span class="cx">                                 if ( ui.values[0] === ui.values[1] ) // prevent compare to self
</span><span class="cx">                                         return false;
</span><span class="lines">@@ -416,6 +435,8 @@
</span><span class="cx">                         // Triggers the slide event
</span><span class="cx">                         if ( slide )
</span><span class="cx">                                 $( '#diff-slider' ).trigger( 'slide' );
</span><ins>+
+                        Diff.disabledButtonCheck( options.value );
</ins><span class="cx">                 },
</span><span class="cx"> 
</span><span class="cx">                 option: function( key ) {
</span></span></pre>
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