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<title>[27268] trunk/src/wp-admin: Improve pushState, replaceState and routing for Themes page</title>
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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/27268">27268</a></dd>
<dt>Author</dt> <dd>markjaquith</dd>
<dt>Date</dt> <dd>2014-02-25 19:21:58 +0000 (Tue, 25 Feb 2014)</dd>
</dl>

<h3>Log Message</h3>
<pre>Improve pushState, replaceState and routing for Themes page

* Uses `pushState()` generally
* Uses `replaceState()` when updating a search query (so no history cruft from typing)

fixes <a href="http://core.trac.wordpress.org/ticket/27198">#27198</a>. props gcorne, adamsilverstein.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadminjsthemejs">trunk/src/wp-admin/js/theme.js</a></li>
<li><a href="#trunksrcwpadminthemesphp">trunk/src/wp-admin/themes.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpadminjsthemejs"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-admin/js/theme.js (27267 => 27268)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-admin/js/theme.js   2014-02-25 17:57:04 UTC (rev 27267)
+++ trunk/src/wp-admin/js/theme.js      2014-02-25 19:21:58 UTC (rev 27268)
</span><span class="lines">@@ -66,7 +66,7 @@
</span><span class="cx">                  return;
</span><span class="cx">          }
</span><span class="cx"> 
</span><del>-               view = new themes.view.Search({ collection: self.collection });
</del><ins>+                view = new themes.view.Search({ collection: self.collection, parent: this });
</ins><span class="cx"> 
</span><span class="cx">          // Render and append after screen title
</span><span class="cx">          view.render();
</span><span class="lines">@@ -350,7 +350,7 @@
</span><span class="cx">                          scroll = document.body.scrollTop;
</span><span class="cx"> 
</span><span class="cx">                          // Clean the url structure
</span><del>-                               themes.router.navigate( themes.router.baseUrl( '' ), { replace: true } );
</del><ins>+                                themes.router.navigate( themes.router.baseUrl( '' ) );
</ins><span class="cx"> 
</span><span class="cx">                          // Restore scroll position
</span><span class="cx">                          document.body.scrollTop = scroll;
</span><span class="lines">@@ -451,6 +451,12 @@
</span><span class="cx">                  self.renderThemes( self.parent.page );
</span><span class="cx">          });
</span><span class="cx"> 
</span><ins>+               this.listenTo( this.parent, 'theme:close', function() {
+                       if ( self.overlay ) {
+                               self.overlay.closeOverlay();
+                       }
+               } );
+
</ins><span class="cx">           // Bind keyboard events.
</span><span class="cx">          $('body').on( 'keyup', function( event ) {
</span><span class="cx">                  if ( ! self.overlay ) {
</span><span class="lines">@@ -573,7 +579,7 @@
</span><span class="cx">          this.model = self.collection.get( id );
</span><span class="cx"> 
</span><span class="cx">          // Trigger a route update for the current model
</span><del>-               themes.router.navigate( themes.router.baseUrl( '?theme=' + this.model.id ), { replace: true } );
</del><ins>+                themes.router.navigate( themes.router.baseUrl( '?theme=' + this.model.id ) );
</ins><span class="cx"> 
</span><span class="cx">          // Sets this.view to 'detail'
</span><span class="cx">          this.setView( 'detail' );
</span><span class="lines">@@ -659,6 +665,7 @@
</span><span class="cx">  tagName: 'input',
</span><span class="cx">  className: 'theme-search',
</span><span class="cx">  id: 'theme-search-input',
</span><ins>+       searching: false,
</ins><span class="cx"> 
</span><span class="cx">  attributes: {
</span><span class="cx">          placeholder: l10n.searchPlaceholder,
</span><span class="lines">@@ -669,11 +676,24 @@
</span><span class="cx">          'input':  'search',
</span><span class="cx">          'keyup':  'search',
</span><span class="cx">          'change': 'search',
</span><del>-               'search': 'search'
</del><ins>+                'search': 'search',
+               'blur':   'pushState'
</ins><span class="cx">   },
</span><span class="cx"> 
</span><ins>+       initialize: function( options ) {
+
+               this.parent = options.parent;
+
+               this.listenTo( this.parent, 'theme:close', function() {
+                       this.searching = false;
+               } );
+
+       },
+
</ins><span class="cx">   // Runs a search on the theme collection.
</span><span class="cx">  search: function( event ) {
</span><ins>+               var options = {};
+
</ins><span class="cx">           // Clear on escape.
</span><span class="cx">          if ( event.type === 'keyup' && event.which === 27 ) {
</span><span class="cx">                  event.target.value = '';
</span><span class="lines">@@ -681,12 +701,31 @@
</span><span class="cx"> 
</span><span class="cx">          this.collection.doSearch( event.target.value );
</span><span class="cx"> 
</span><ins>+               // if search is initiated and key is not return
+               if ( this.searching && event.which !== 13 ) {
+                       options.replace = true;
+               } else {
+                       this.searching = true;
+               }
+
</ins><span class="cx">           // Update the URL hash
</span><span class="cx">          if ( event.target.value ) {
</span><del>-                       themes.router.navigate( themes.router.baseUrl( '?search=' + event.target.value ), { replace: true } );
</del><ins>+                        themes.router.navigate( themes.router.baseUrl( '?search=' + event.target.value ), options );
</ins><span class="cx">           } else {
</span><del>-                       themes.router.navigate( themes.router.baseUrl( '' ), { replace: true } );
</del><ins>+                        themes.router.navigate( themes.router.baseUrl( '' ) );
</ins><span class="cx">           }
</span><ins>+       },
+
+       pushState: function( event ) {
+               var url = themes.router.baseUrl( '' );
+
+               if ( event.target.value ) {
+                       url = themes.router.baseUrl( '?search=' + event.target.value );
+               }
+
+               this.searching = false;
+               themes.router.navigate( url );
+
</ins><span class="cx">   }
</span><span class="cx"> });
</span><span class="cx"> 
</span><span class="lines">@@ -694,14 +733,26 @@
</span><span class="cx"> // Listens to [theme] and [search] params
</span><span class="cx"> themes.routes = Backbone.Router.extend({
</span><span class="cx"> 
</span><del>-       initialize: function() {
-               this.routes = _.object([
-               ]);
</del><ins>+        routes: {
+               'themes.php?theme=:slug': 'theme',
+               'themes.php?search=:query': 'search',
+               'themes.php?s=:query': 'search',
+               'themes.php': 'themes',
+               '': 'themes'
</ins><span class="cx">   },
</span><span class="cx"> 
</span><span class="cx">  baseUrl: function( url ) {
</span><del>-               return themes.data.settings.root + url;
</del><ins>+                return 'themes.php' + url;
+       },
+
+       search: function( query ) {
+               $( '.theme-search' ).val( query );
+       },
+
+       themes: function() {
+               $( '.theme-search' ).val( '' );
</ins><span class="cx">   }
</span><ins>+
</ins><span class="cx"> });
</span><span class="cx"> 
</span><span class="cx"> // Execute and setup the application
</span><span class="lines">@@ -720,32 +771,39 @@
</span><span class="cx">  },
</span><span class="cx"> 
</span><span class="cx">  render: function() {
</span><ins>+
</ins><span class="cx">           // Render results
</span><span class="cx">          this.view.render();
</span><span class="cx">          this.routes();
</span><span class="cx"> 
</span><del>-               // Set the initial theme
-               if ( 'undefined' !== typeof themes.data.settings.theme && '' !== themes.data.settings.theme ){
-                       this.view.view.theme.trigger( 'theme:expand', this.view.collection.findWhere( { id: themes.data.settings.theme } ) );
-               }
-
-               // Set the initial search
-               if ( 'undefined' !== typeof themes.data.settings.search && '' !== themes.data.settings.search ){
-                       $( '.theme-search' ).val( themes.data.settings.search );
-                       this.themes.doSearch( themes.data.settings.search );
-               }
-
-               // Start the router if browser supports History API
-               if ( window.history && window.history.pushState ) {
-                       // Calls the routes functionality
-                       Backbone.history.start({ pushState: true, silent: true });
-               }
</del><ins>+                Backbone.history.start({
+                       root: themes.data.settings.adminUrl,
+                       pushState: true,
+                       hashChange: false
+               });
</ins><span class="cx">   },
</span><span class="cx"> 
</span><span class="cx">  routes: function() {
</span><ins>+               var self = this;
</ins><span class="cx">           // Bind to our global thx object
</span><span class="cx">          // so that the object is available to sub-views
</span><span class="cx">          themes.router = new themes.routes();
</span><ins>+
+               // Handles theme details route event
+               themes.router.on( 'route:theme', function( slug ) {
+                       self.view.view.expand( slug );
+               });
+
+               themes.router.on( 'route:themes', function() {
+                       self.themes.doSearch( '' );
+                       self.view.trigger( 'theme:close' );
+               });
+
+               // Handles search route event
+               themes.router.on( 'route:search', function( query ) {
+                       self.view.trigger( 'theme:close' );
+                       self.themes.doSearch( query );
+               });
</ins><span class="cx">   }
</span><span class="cx"> };
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunksrcwpadminthemesphp"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-admin/themes.php (27267 => 27268)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-admin/themes.php    2014-02-25 17:57:04 UTC (rev 27267)
+++ trunk/src/wp-admin/themes.php       2014-02-25 19:21:58 UTC (rev 27268)
</span><span class="lines">@@ -99,10 +99,7 @@
</span><span class="cx">          'canInstall'    => ( ! is_multisite() && current_user_can( 'install_themes' ) ),
</span><span class="cx">          'installURI'    => ( ! is_multisite() && current_user_can( 'install_themes' ) ) ? admin_url( 'theme-install.php' ) : null,
</span><span class="cx">          'confirmDelete' => __( "Are you sure you want to delete this theme?\n\nClick 'Cancel' to go back, 'OK' to confirm the delete." ),
</span><del>-               'root'          => parse_url( admin_url( 'themes.php' ), PHP_URL_PATH ),
-               'theme'         => esc_html( $theme ),
-               'search'        => esc_html( $search ),
-
</del><ins>+                'adminUrl'      => parse_url( admin_url(), PHP_URL_PATH ),
</ins><span class="cx">   ),
</span><span class="cx">          'l10n' => array(
</span><span class="cx">                  'addNew' => __( 'Add New Theme' ),
</span></span></pre>
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