Changeset 38813

Timestamp:

10/19/2016 03:19:13 AM (5 years ago)

Author:

westonruter

Message:

Customize: Introduce a new experience for discovering, installing, and previewing themes within the customizer.

Unify the theme-browsing and theme-customization experiences by introducing a comprehensive theme browser and installer directly accessible in the customizer. Replaces the customizer theme switcher with a full-screen panel for discovering/browsing and installing themes available on WordPress.org. Themes can now be installed and previewed directly in the customizer without entering the wp-admin context.

For details, see ​https://make.wordpress.org/core/2016/10/03/feature-proposal-a-new-experience-for-discovering-installing-and-previewing-themes-in-the-customizer/

Fixes #37661, #34843.
Props celloexpressions, folletto, westonruter, karmatosed, afercia.

Location:

trunk

Files:

• src/wp-admin/css/customize-controls.css (modified) (15 diffs)
• src/wp-admin/css/themes.css (modified) (1 diff)
• src/wp-admin/customize.php (modified) (1 diff)
• src/wp-admin/includes/theme.php (modified) (4 diffs)
• src/wp-admin/js/customize-controls.js (modified) (29 diffs)
• src/wp-admin/js/updates.js (modified) (5 diffs)
• src/wp-includes/class-wp-customize-manager.php (modified) (10 diffs)
• src/wp-includes/customize/class-wp-customize-theme-control.php (modified) (2 diffs)
• src/wp-includes/customize/class-wp-customize-themes-panel.php (added)
• src/wp-includes/customize/class-wp-customize-themes-section.php (modified) (2 diffs)
• tests/phpunit/tests/customize/manager.php (modified) (1 diff)

trunk/src/wp-admin/css/customize-controls.css

@@ -272 +272 @@
 
 #customize-theme-controls .customize-pane-child.open,
-#customize-theme-controls .customize-pane-child.current-panel,
-#customize-theme-controls .customize-themes-panel.customize-pane-child.current-panel {
+#customize-theme-controls .customize-pane-child.current-panel {
     -webkit-transform: none;
     -ms-transform: none;
@@ -279 +278 @@
 }
 
-#customize-theme-controls .customize-themes-panel.customize-pane-child,
 .section-open #customize-theme-controls .customize-pane-parent,
 .in-sub-panel #customize-theme-controls .customize-pane-parent,
 .section-open #customize-info,
 .in-sub-panel #customize-info,
-.in-sub-panel.section-open #customize-theme-controls .customize-pane-child.current-panel,
-.in-themes-panel #customize-theme-controls .customize-pane-parent,
-.in-themes-panel #customize-info {
+.in-sub-panel.section-open #customize-theme-controls .customize-pane-child.current-panel {
     visibility: hidden;
     height: 0;
@@ -297 +293 @@
 .section-open #customize-theme-controls .customize-pane-parent.busy,
 .in-sub-panel #customize-theme-controls .customize-pane-parent.busy,
-.in-themes-panel #customize-theme-controls .customize-pane-parent.busy,
 .section-open #customize-info.busy,
 .in-sub-panel #customize-info.busy,
-.in-themes-panel #customize-info.busy,
 .busy.section-open.in-sub-panel #customize-theme-controls .customize-pane-child.current-panel,
 #customize-theme-controls .customize-pane-child.open,
@@ -308 +302 @@
     height: auto;
     overflow: auto;
-}
-
-.in-themes-panel #customize-theme-controls .customize-pane-parent,
-.in-themes-panel #customize-info {
-    -webkit-transform: translateX(100%);
-    -ms-transform: translateX(100%);
-    transform: translateX(100%);
 }
 
@@ -407 +394 @@
     float: left;
     width: 48px;
-    height: 71px;
+    height: 70px;
     padding: 0 24px 0 0;
     margin: 0;
@@ -421 +408 @@
 
 .customize-section-back {
-    height: 74px;
+    height: 73px;
 }
 
@@ -997 +984 @@
 }
 
-#customize-theme-controls .control-section-themes .accordion-section-title:hover, /* Not a focusable element. */
-#customize-theme-controls .control-section-themes .accordion-section-title {
+#customize-theme-controls .control-panel-themes {
+    border-bottom: none;
+}
+
+#customize-theme-controls .control-panel-themes > .accordion-section-title:hover, /* Not a focusable element. */
+#customize-theme-controls .control-panel-themes > .accordion-section-title {
     cursor: default;
     background: #fff;
@@ -1005 +996 @@
     border-bottom: 1px solid #ddd;
     border-left: none;
-    margin-top: 0;
+    border-right: none;
+    margin: 0 0 15px 0;
+    padding-right: 100px; /* Space for the button */
 }
 
@@ -1013 +1006 @@
 }
 
-#customize-theme-controls .control-section-themes > .accordion-section-title:hover, /* Not a focusable element. */
-#customize-theme-controls .control-section-themes > .accordion-section-title {
-    margin: 0 0 15px;
-}
-
-#customize-controls .customize-themes-panel .accordion-section-title {
-    margin: 15px -8px;
-}
-
-#customize-controls .control-section-themes .accordion-section-title,
-#customize-controls .customize-themes-panel .accordion-section-title {
-    padding-right: 100px; /* Space for the button */
-}
-
-#customize-controls .control-section-themes .accordion-section-title span.customize-action,
+.control-panel-themes .accordion-section-title span.customize-action,
 #customize-controls .customize-section-title span.customize-action {
     font-size: 13px;
@@ -1034 +1013 @@
 }
 
-#customize-controls .control-section-themes .accordion-section-title .change-theme,
-#customize-controls .customize-themes-panel .accordion-section-title .customize-theme {
+.control-panel-themes .accordion-section-title .change-theme {
     position: absolute;
     right: 10px;
@@ -1043 +1021 @@
 }
 
-#customize-controls .control-section-themes .accordion-section-title:before {
+#customize-theme-controls .control-panel-themes > .accordion-section-title:after {
     display: none;
 }
 
-#customize-controls .customize-themes-panel {
-    padding: 0 8px;
-    background: #f1f1f1;
-    -webkit-box-sizing: border-box;
-    -moz-box-sizing: border-box;
-    box-sizing: border-box;
-}
-
-#customize-controls .customize-themes-panel .accordion-section-title:first-child {
-    margin-top: 0;
-}
-
-#customize-controls .customize-themes-panel .accordion-section-title:nth-child(2) {
+.control-panel-themes .customize-themes-full-container {
+    position: fixed;
+    top: 0;
+    left: 0;
+    transition: .18s left ease-in-out;
+    margin: 0 0 0 300px;
+    padding:25px;
+    overflow-y: scroll;
+    width: calc(100% - 350px);
+    height: calc(100% - 50px);
+    background: #eee;
+    z-index: 20;
+}
+
+/* Animations for opening the themes panel */
+#customize-header-actions .save,
+#customize-header-actions .spinner,
+#customize-header-actions .customize-controls-preview-toggle {
+    position: relative;
+    top: 0;
+    transition: .18s top ease-in-out;
+}
+
+#customize-footer-actions,
+#customize-footer-actions .collapse-sidebar {
+    bottom: 0;
+    transition: .18s bottom ease-in-out;
+}
+
+.in-themes-panel:not(.animating) #customize-header-actions .save,
+.in-themes-panel:not(.animating) #customize-header-actions .spinner,
+.in-themes-panel:not(.animating) #customize-header-actions .customize-controls-preview-toggle,
+.in-themes-panel:not(.animating) #customize-preview,
+.in-themes-panel:not(.animating) #customize-footer-actions {
+    visibility: hidden;
+}
+
+.wp-full-overlay.in-themes-panel {
+    background: #eee; /* Prevents a black flash when fading in the panel */
+}
+
+.in-themes-panel #customize-header-actions .save,
+.in-themes-panel #customize-header-actions .spinner,
+.in-themes-panel #customize-header-actions .customize-controls-preview-toggle {
+    top: -45px;
+}
+
+.in-themes-panel #customize-footer-actions,
+.in-themes-panel #customize-footer-actions .collapse-sidebar {
+    bottom: -45px;
+}
+
+/* Don't show the theme count while the panel opens, as it's in the wrong place during the animation */
+.in-themes-panel.animating .control-panel-themes .filter-themes-count {
+    display: none;
+}
+
+.in-themes-panel.wp-full-overlay .wp-full-overlay-sidebar-content {
+    bottom: 0;
+}
+
+/* Adds a delay before fading in to avoid it "jumping" */
+@keyframes themes-fade-in {
+    0% {
+        opacity: 0;
+    }
+    50% {
+        opacity: 0;
+    }
+    100% {
+        opacity: 1;
+    }
+}
+
+.control-panel-themes .customize-themes-full-container.animate {
+    animation: .6s themes-fade-in 1;
+}
+
+.in-themes-panel:not(.animating) .control-panel-themes .filter-themes-count {
+    animation: .6s themes-fade-in 1;
+}
+
+.control-panel-themes .filter-themes-count {
+    position: fixed;
+    top: 0;
+    left: 48px;
+    width: 222px;
+    padding: 6px 15px;
+    margin: 0;
+    line-height: 32px;
+    text-align: right;
+    z-index: 10;
+}
+
+.control-panel-themes .filter-themes-count .themes-displayed {
+    font-weight: 600;
+    color: #555d66;
+}
+
+.control-panel-themes .filter-themes-count .see-themes,
+.control-panel-themes .filter-themes-count .filter-themes {
+    display: none;
+}
+
+
+/* Mobile - toggle between themes and filters */
+@media screen and (max-width:600px) {
+
+    /* Show a spinner in the filters view also, reusing the main customize spinner */
+    .in-themes-panel.loading #customize-header-actions .spinner {
+        position: fixed;
+        top: 0;
+        left: 48px;
+        visibility: visible;
+    }
+
+    .in-themes-panel.loading.showing-themes #customize-header-actions .spinner {
+        visibility: hidden;
+    }
+
+    .control-panel-themes .filter-themes-count {
+        width: calc(100% - 93px);
+    }
+
+    .control-panel-themes .filter-themes-count .themes-displayed {
+        display: none;
+    }
+
+    .wp-full-overlay:not(.showing-themes) .control-panel-themes .filter-themes-count .see-themes {
+        display: block;
+        float: right;
+    }
+
+    .wp-full-overlay.showing-themes .control-panel-themes .filter-themes-count .filter-themes {
+        display: block;
+        float: right;
+    }
+
+    .in-themes-panel.showing-themes .control-panel-themes .customize-panel-back {
+        position: fixed;
+        top: 0;
+        left: 0;
+        z-index: 10;
+        height: 45px;
+        background: #eee;
+    }
+
+    .in-themes-panel.showing-themes .control-panel-themes .customize-panel-back:before {
+        line-height: 45px;
+    }
+
+    .control-panel-themes .customize-themes-full-container {
+        width: calc(100% - 50px);
+        margin: 0;
+        top: 46px;
+        height: calc(100% - 96px);
+        z-index: 1;
+        display: none;
+    }
+
+    .showing-themes .control-panel-themes .customize-themes-full-container {
+        display: block;
+    }
+}
+
+.control-panel-themes .customize-themes-notifications .notice {
+    margin: 0 0 25px 0;
+}
+
+.customize-themes-full-container .customize-themes-section {
+    display: none !important; /* There is unknown JS that perpetually tries to show all theme sections when more items are added. */
+    overflow: hidden;
+}
+
+.customize-themes-full-container .customize-themes-section.current-section {
+    display: list-item !important; /* There is unknown JS that perpetually tries to show all theme sections when more items are added. */
+}
+
+.theme-section .customize-themes-text-before {
+    padding: 0 0 8px 15px;
+    margin: 15px 0 0 0;
+    line-height: 16px;
+    border-bottom: 1px solid #ddd;
+    color: #555d66;
+}
+
+.control-panel-themes .customize-themes-section-title {
+    width: 100%;
+    background: #fff;
+    box-shadow: none;
+    outline: none;
+    border-top: none;
+    border-bottom: 1px solid #ddd;
+    border-left: 4px solid #fff;
+    border-right: none;
+    cursor: pointer;
+    padding: 10px 15px;
+    position: relative;
+    text-align: left;
     font-size: 14px;
     font-weight: 600;
-}
-
-#customize-controls .customize-themes-panel > h2 {
-    padding: 15px 8px 0 8px;
-}
-
-#customize-theme-controls .customize-themes-panel .accordion-section-content {
+    color: #555d66;
+    text-shadow: none;
+}
+
+.control-panel-themes .theme-section {
+    margin: 0;
+    position: relative;
+}
+
+.control-panel-themes .customize-themes-section-title:focus,
+.control-panel-themes .customize-themes-section-title:hover {
+    border-left-color: #0073aa;
+    color: #0073aa;
+    background: #f5f5f5;
+}
+
+.control-panel-themes .theme-section .customize-themes-section-title.selected:after {
+    content: "\f147";
+    font: 16px/1 dashicons;
+    box-sizing: border-box;
+    width: 20px;
+    height: 20px;
+    padding: 3px 3px 1px 1px; /* Re-align the icon to the smaller grid */
+    border-radius: 100%;
+    position: absolute;
+    top: 9px;
+    right: 15px;
+    background: #0073aa;
+    color: #fff;
+}
+
+.control-panel-themes .customize-themes-section-title.selected {
+    color: #0073aa;
+}
+
+.control-panel-themes .customize-themes-section-title.themes-section-search_themes {
+    border-left: none;
+    padding: 5px 10px 5px 15px;
+    width: auto;
+}
+
+.control-panel-themes .customize-themes-section-title.themes-section-feature_filter_themes:after,
+.control-panel-themes .customize-themes-section-title.themes-section-favorites_themes:after {
+    content: "\f140";
+    font: 20px/1 dashicons;
+    position: absolute;
+    right: 15px;
+    top: 8px;
+}
+
+.control-panel-themes .customize-themes-section-title.themes-section-search_themes .wp-filter-search {
+    width: 100%;
+}
+
+.control-panel-themes .customize-themes-section-title.themes-section-search_themes.selected,
+.control-panel-themes .customize-themes-section-title.themes-section-search_themes:hover {
+    background: #fff;
+    cursor: default;
+}
+
+.control-panel-themes .customize-themes-section-title.themes-section-feature_filter_themes {
+    margin-top: 15px;
+    border-top: 1px solid #ddd;
+}
+
+.control-panel-themes .filter-details {
+    background: #f5f5f5;
+    margin: 0;
+    padding: 8px 15px;
+    border-top: none;
+    border-bottom: 1px solid #ddd;
+    display: none;
+}
+
+.control-panel-themes .customize-themes-section-title.selected.details-open {
+    border-bottom-color: #f5f5f5;
+    border-left-color: #f5f5f5;
+    background: #f5f5f5;
+}
+
+.control-panel-themes .favorites-form.filter-details label {
+    padding-bottom: 6px;
+    display: inline-block;
+}
+
+.control-panel-themes .filter-details .filter-group {
+    float: none;
+    width: 100%;
     background: transparent;
-    display: block;
-}
-
-.customize-control.customize-control-theme {
-    margin-bottom: 8px;
+    border: none;
+    padding: 0;
+    box-shadow: none;
+}
+
+.control-panel-themes .filter-details .filter-group legend button {
+    padding: 18px 15px 8px 10px;
+    line-height: 14px;
+    border-bottom: 1px solid #ddd;
+    width: 100%;
+    text-align: left;
+}
+
+.control-panel-themes .filter-details .filter-group legend {
+    position: relative;
+    top: 0;
+    width: 100%;
+}
+
+.control-panel-themes .filter-details .filter-group legend button:after {
+    content: "\f140";
+    font: 20px/1 dashicons;
+    position: absolute;
+    bottom: 6px;
+    right: 5px;
+}
+
+.control-panel-themes .filter-details .filter-group legend button:hover,
+.control-panel-themes .filter-details .filter-group legend button:focus {
+    color: #0073aa;
+    border-bottom-color: #0073aa; /* Color change for focus style should be acceptable because border-bottom is barely visible previously. */
+    outline: none;
+    box-shadow: none;
+}
+
+.control-panel-themes .filter-details .filter-group legend button.open:after {
+    content: "\f142";
+}
+
+.control-panel-themes .filter-details .filter-group .filter-group-feature {
+    display: none;
+    margin: 0;
+}
+
+.control-panel-themes .filter-details .filter-group-feature label {
+    border: 1px solid #ddd;
+    border-top: 0;
+    background: #fff;
+    color: #555d66;
+    margin: 0;
+    padding: 12px 10px 12px 34px;
+    width: calc(100% - 46px);
+    line-height: 16px;
+    font-weight: 600;
+}
+
+.control-panel-themes .filter-details .filter-group-feature input {
+    position: absolute;
+    margin: 12px 10px;
+}
+
+.control-panel-themes .filter-details .filter-group-feature label:hover {
+    color: #0073aa;
 }
 
@@ -1084 +1387 @@
 }
 
+.loading .customize-themes-section .spinner {
+    display: block;
+    visibility: visible;
+    position: relative;
+    clear: both;
+    width: 20px;
+    height: 20px;
+    left: calc(50% - 10px);
+    float: none;
+    margin-top: 50px;
+}
+
+.customize-themes-section .filter-drawer {
+    border-top: none;
+    display: block;
+    background: transparent;
+    padding-top: 5px;
+}
+
+.customize-themes-section .clear-filters {
+    margin-left: 8px;
+    display: none;
+}
+
+.customize-themes-section .no-themes {
+    display: none;
+}
+
+.themes-section-installed_themes .theme .notice-success {
+    display: none; /* Hide "installed" notice on installed themes tab. */
+}
+
+.control-panel-themes .theme-browser .theme .theme-actions .button-primary {
+    margin: 0 0 0 8px;
+}
+
+.customize-control-theme .theme {
+    width: 100%;
+    margin: 0;
+}
+
+.customize-control.customize-control-theme { /* override most properties on .customize-control */
+    box-sizing: border-box;
+    width: 18.4%;
+    margin: 0 2% 2% 0;
+    padding: 0;
+    clear: none;
+}
+
+/* 5 columns above 2100px */
+@media screen and (min-width: 2101px) {
+    .customize-control.customize-control-theme:nth-child(5n) {
+        margin-right: 0;
+    }
+}
+
+/* 4 columns up to 2100px */
+@media screen and (min-width: 1601px) and (max-width: 2100px) {
+    .customize-control.customize-control-theme {
+        width: 23.5%;
+    }
+
+    .customize-control.customize-control-theme:nth-child(4n) {
+        margin-right: 0;
+    }
+}
+
+/* 3 columns up to 1600px */
+@media screen and (min-width: 1201px) and (max-width: 1600px) {
+    .customize-control.customize-control-theme {
+        width: 32%;
+    }
+
+    .customize-control.customize-control-theme:nth-child(3n) {
+        margin-right: 0;
+    }
+}
+
+/* 2 columns up to 1200px */
+@media screen and (min-width: 851px) and (max-width: 1200px) {
+    .customize-control.customize-control-theme {
+        width: 49%;
+    }
+
+    .customize-control.customize-control-theme:nth-child(even) {
+        margin-right: 0;
+    }
+}
+
+/* 1 column up to 850 px */
+@media screen and (max-width: 850px) {
+    .customize-control.customize-control-theme {
+        width: 100%;
+        margin: 0 0 3% 0;
+    }
+}
+
 .wp-customizer .theme-browser .themes {
     padding-bottom: 8px;
 }
 
-.wp-customizer .theme-browser .theme {
-    margin: 0;
-    width: 100%;
-}
-
 .wp-customizer .theme-browser .theme .theme-actions {
-    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
     opacity: 1;
 }
@@ -1111 +1505 @@
     line-height: 1.5;
     width: 100%;
-}
-
-.control-section-themes .accordion-section-title:after,
-.customize-themes-panel .accordion-section-title:after {
-    display: none;
-}
-
-.customize-themes-panel.control-panel-content {
-    border-top: 1px solid #ddd;
 }
 
@@ -1136 +1521 @@
 }
 
+/* Avoid a z-index war by resetting elements that should be under the overlay.
+   This is likely required because of the way that sections and panels are positioned. */
+.wp-customizer.modal-open #customize-header-actions,
+.wp-customizer.modal-open .control-panel-themes .filter-themes-count,
+.wp-customizer.modal-open .control-panel-themes .customize-themes-section-title.selected:after {
+    z-index: -1;
+}
+
 .wp-customizer .theme-overlay .theme-backdrop {
     background: rgba( 238, 238, 238, 0.75 );
     position: fixed;
     z-index: 110;
+}
+
+.wp-customizer .theme-overlay .star-rating {
+    float: left;
+    margin-right: 8px;
+}
+
+.wp-customizer .theme-rating .num-ratings {
+    line-height: 20px;
 }
 
@@ -1148 +1550 @@
     bottom: 45px;
     z-index: 120;
-    max-width: 1740px; /* To ensure that theme screenshots are not displayed larger than 880px wide. */
 }
 
 .wp-customizer .theme-overlay .theme-actions {
-    text-align: right; /* Because there's only one action, match the pattern of media modals and right-align the action. */
-}
-
-.ie8 .wp-customizer .theme-overlay .theme-header,
-.ie8 .wp-customizer .theme-overlay .theme-about,
-.ie8 .wp-customizer .theme-overlay .theme-actions {
-    position: static;
-}
+    text-align: right; /* Because there're only one or two actions, match the UI pattern of media modals and right-align the action. */
+    padding: 10px 15px;
+}
+
+.wp-customizer .theme-overlay .theme-actions .theme-install.preview {
+    margin-left: 8px;
+}
+
+.control-panel-themes .theme-actions .delete-theme {
+    left: 15px; /* these override themes.css on mobile */
+    right: auto;
+    bottom: auto;
+    position: absolute;
+}
+
+.modal-open .in-themes-panel #customize-controls .wp-full-overlay-sidebar-content {
+    overflow: visible; /* Prevent the top-level Customizer controls from becoming visible when elements on the right of the details modal are focused. */
+}
+
 
 /* Small Screens */

trunk/src/wp-admin/css/themes.css

@@ -571 +571 @@
     margin: 0 30px 0 0;
     width: 55%;
-    max-width: 880px;
+    max-width: 1200px; /* Recommended theme screenshot width, set here to avoid stretching */
     text-align: center;
 }

trunk/src/wp-admin/customize.php

@@ -110 +110 @@
 
 <script type="text/javascript">
-var ajaxurl = <?php echo wp_json_encode( admin_url( 'admin-ajax.php', 'relative' ) ); ?>;
+var ajaxurl = <?php echo wp_json_encode( admin_url( 'admin-ajax.php', 'relative' ) ); ?>,
+    pagenow = 'customize';
 </script>
 

trunk/src/wp-admin/includes/theme.php

@@ -608 +608 @@
  */
 function customize_themes_print_templates() {
-    $preview_url = esc_url( add_query_arg( 'theme', '__THEME__' ) ); // Token because esc_url() strips curly braces.
-    $preview_url = str_replace( '__THEME__', '{{ data.id }}', $preview_url );
     ?>
     <script type="text/html" id="tmpl-customize-themes-details-view">
@@ -621 +619 @@
             <div class="theme-about wp-clearfix">
                 <div class="theme-screenshots">
-                <# if ( data.screenshot[0] ) { #>
+                <# if ( data.screenshot && data.screenshot[0] ) { #>
                     <div class="screenshot"><img src="{{ data.screenshot[0] }}" alt="" /></div>
                 <# } else { #>
@@ -634 +632 @@
                     <h2 class="theme-name">{{{ data.name }}}<span class="theme-version"><?php printf( __( 'Version: %s' ), '{{ data.version }}' ); ?></span></h2>
                     <h3 class="theme-author"><?php printf( __( 'By %s' ), '{{{ data.authorAndUri }}}' ); ?></h3>
+
+                    <# if ( data.stars && 0 != data.num_ratings ) { #>
+                        <div class="theme-rating">
+                            {{{ data.stars }}}
+                            <span class="num-ratings"><?php echo sprintf( __( '(%s ratings)' ), '{{ data.num_ratings }}' ); ?></span>
+                        </div>
+                    <# } #>
+
+                    <# if ( data.hasUpdate ) { #>
+                        <div class="notice notice-warning notice-alt notice-large" data-slug="{{ data.id }}">
+                            <h3 class="notice-title"><?php _e( 'Update Available' ); ?></h3>
+                            {{{ data.update }}}
+                        </div>
+                    <# } #>
+
                     <p class="theme-description">{{{ data.description }}}</p>
 
@@ -639 +652 @@
                         <p class="parent-theme"><?php printf( __( 'This is a child theme of %s.' ), '<strong>{{{ data.parent }}}</strong>' ); ?></p>
                     <# } #>
-
                     <# if ( data.tags ) { #>
-                        <p class="theme-tags"><span><?php _e( 'Tags:' ); ?></span> {{ data.tags }}</p>
+                        <p class="theme-tags"><span><?php _e( 'Tags:' ); ?></span> {{{ data.tags }}}</p>
                     <# } #>
                 </div>
             </div>
 
-            <# if ( ! data.active ) { #>
-                <div class="theme-actions">
-                    <div class="inactive-theme">
-                        <?php
-                        /* translators: %s: Theme name */
-                        $aria_label = sprintf( __( 'Preview %s' ), '{{ data.name }}' );
-                        ?>
-                        <a href="<?php echo $preview_url; ?>" target="_top" class="button button-primary" aria-label="<?php echo esc_attr( $aria_label ); ?>"><?php _e( 'Live Preview' ); ?></a>
-                    </div>
-                </div>
-            <# } #>
+            <div class="theme-actions">
+                <# if ( data.active ) { #>
+                    <button type="button" class="button button-primary customize-theme"><?php _e( 'Customize' ); ?></a>
+                <# } else if ( 'installed' === data.type ) { #>
+                    <?php if ( current_user_can( 'delete_themes' ) ) { ?>
+                        <# if ( data.actions && data.actions['delete'] ) { #>
+                            <a href="{{{ data.actions['delete'] }}}" data-slug="{{ data.id }}" class="button button-secondary delete-theme"><?php _e( 'Delete' ); ?></a>
+                        <# } #>
+                    <?php } ?>
+                    <button type="button" class="button button-primary preview-theme" data-slug="{{ data.id }}"><?php _e( 'Live Preview' ); ?></span>
+                <# } else { #>
+                    <button type="button" class="button theme-install" data-slug="{{ data.id }}"><?php _e( 'Install' ); ?></button>
+                    <button type="button" class="button button-primary theme-install preview" data-slug="{{ data.id }}"><?php _e( 'Install & Preview' ); ?></button>
+                <# } #>
+            </div>
         </div>
     </script>

trunk/src/wp-admin/js/customize-controls.js

@@ -1 @@
-/* global _wpCustomizeHeader, _wpCustomizeBackground, _wpMediaViewsL10n, MediaElementPlayer */
+/* global _wpCustomizeHeader, _wpCustomizeBackground, _wpMediaViewsL10n, MediaElementPlayer, console */
 (function( exports, $ ){
     var Container, focus, normalizedTransitionendEventName, api = wp.customize;
@@ -865 +865 @@
                 container = $( '#customize-theme-controls' );
 
-            // Watch for changes to the panel state
+            // Watch for changes to the panel state.
             inject = function ( panelId ) {
                 var parentContainer;
                 if ( panelId ) {
-                    // The panel has been supplied, so wait until the panel object is registered
+                    // The panel has been supplied, so wait until the panel object is registered.
                     api.panel( panelId, function ( panel ) {
-                        // The panel has been registered, wait for it to become ready/initialized
+                        // The panel has been registered, wait for it to become ready/initialized.
                         panel.deferred.embedded.done( function () {
                             parentContainer = panel.contentContainer;
@@ -896 +896 @@
             };
             section.panel.bind( inject );
-            inject( section.panel.get() ); // Since a section may never get a panel, assume that it won't ever get one
+            inject( section.panel.get() ); // Since a section may never get a panel, assume that it won't ever get one.
         },
 
@@ -1040 +1040 @@
      * wp.customize.ThemesSection
      *
-     * Custom section for themes that functions similarly to a backwards panel,
-     * and also handles the theme-details view rendering and navigation.
+     * Custom section for themes that loads themes by category, and also
+     * handles the theme-details view rendering and navigation.
      *
      * @constructor
@@ -1053 +1053 @@
         screenshotQueue: null,
         $window: $( window ),
-
-        /**
-         * @since 4.2.0
-         */
-        initialize: function () {
-            this.$customizeSidebar = $( '.wp-full-overlay-sidebar-content:first' );
-            return api.Section.prototype.initialize.apply( this, arguments );
+        loaded: 0,
+        loading: false,
+        fullyLoaded: false,
+        term: '',
+        filterContainer: $(),
+
+        /**
+         * Embed the section in the DOM when the themes panel is ready.
+         *
+         * Insert the section before the themes container. Assume that a themes section is within a panel, but not necessarily the themes panel.
+         *
+         * @since 4.7.0
+         */
+        embed: function () {
+            var inject,
+                section = this,
+                container = $( '#customize-theme-controls' );
+
+            // Watch for changes to the panel state
+            inject = function ( panelId ) {
+                var parentContainer;
+                api.panel( panelId, function ( panel ) {
+                    // The panel has been registered, wait for it to become ready/initialized
+                    panel.deferred.embedded.done( function () {
+                        parentContainer = panel.contentContainer;
+                        if ( ! section.headContainer.parent().is( parentContainer ) ) {
+                            parentContainer.find( '.customize-themes-full-container-container' ).before( section.headContainer );
+                        }
+                        if ( ! section.contentContainer.parent().is( section.headContainer ) ) {
+                            container.append( section.contentContainer );
+                        }
+                        section.deferred.embedded.resolve();
+                    });
+                } );
+            };
+            section.panel.bind( inject );
+            inject( section.panel.get() ); // Since a section may never get a panel, assume that it won't ever get one
         },
 
@@ -1092 +1122 @@
             });
 
-            _.bindAll( this, 'renderScreenshots' );
+            _.bindAll( this, 'renderScreenshots', 'loadMore', 'checkTerm', 'filtersChecked' );
         },
 
@@ -1099 +1129 @@
          *
          * Ignore the active states' of the contained theme controls, and just
-         * use the section's own active state instead. This ensures empty search
-         * results for themes to cause the section to become inactive.
+         * use the section's own active state instead. This prevents empty search
+         * results for theme sections from causing the section to become inactive.
          *
          * @since 4.2.0
@@ -1116 +1146 @@
             var section = this;
 
-            // Expand/Collapse section/panel.
-            section.container.find( '.change-theme, .customize-theme' ).on( 'click keydown', function( event ) {
-                if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
-                    return;
-                }
-                event.preventDefault(); // Keep this AFTER the key filter above
-
-                if ( section.expanded() ) {
-                    section.collapse();
-                } else {
+            section.filterContainer = $( '#accordion-section-' + section.id );
+
+            // Expand section/panel. Only collapse when opening another section.
+            section.filterContainer.on( 'click', '.customize-themes-section-title', function() {
+                // Open the section.
+                if ( ! section.expanded() ) {
                     section.expand();
                 }
+
+                // Toggle filters.
+                if ( section.filterContainer.find( '.filter-details' ).length ) {
+                    section.filterContainer.find( '.customize-themes-section-title' )
+                        .toggleClass( 'details-open' )
+                        .attr('aria-expanded', function ( i, attr ) {
+                            return attr === 'true' ? 'false' : 'true';
+                        });
+                    section.filterContainer.find( '.filter-details' ).slideToggle( 180 );
+                }
+            });
+
+            // Preview installed themes.
+            section.container.on( 'click', '.theme-actions .preview-theme', function() {
+                var themeId = $( this ).data( 'themeId' );
+
+                $( '.wp-full-overlay' ).addClass( 'customize-loading' );
+                api.panel( 'themes' ).loadThemePreview( themeId ).fail( function() {
+                    $( '.wp-full-overlay' ).removeClass( 'customize-loading' );
+                } );
             });
 
             // Theme navigation in details view.
-            section.container.on( 'click keydown', '.left', function( event ) {
-                if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
-                    return;
-                }
-
-                event.preventDefault(); // Keep this AFTER the key filter above
-
+            section.container.on( 'click', '.left', function() {
                 section.previousTheme();
             });
 
-            section.container.on( 'click keydown', '.right', function( event ) {
-                if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
-                    return;
-                }
-
-                event.preventDefault(); // Keep this AFTER the key filter above
-
+            section.container.on( 'click', '.right', function() {
                 section.nextTheme();
             });
 
-            section.container.on( 'click keydown', '.theme-backdrop, .close', function( event ) {
-                if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
-                    return;
-                }
-
-                event.preventDefault(); // Keep this AFTER the key filter above
-
+            section.container.on( 'click', '.theme-backdrop, .close', function() {
                 section.closeDetails();
             });
 
             var renderScreenshots = _.throttle( _.bind( section.renderScreenshots, this ), 100 );
-            section.container.on( 'input', '#themes-filter', function( event ) {
+
+            // Only used when there is only one section - installed themes.
+            $( '.control-panel-themes' ).on( 'input', '#themes-filter', function( event ) {
                 var count,
                     term = event.currentTarget.value.toLowerCase().trim().replace( '-', ' ' ),
@@ -1174 +1204 @@
 
                 // Update theme count.
-                count = section.container.find( 'li.customize-control:visible' ).length;
-                section.container.find( '.theme-count' ).text( count );
-            });
-
-            // Pre-load the first 3 theme screenshots.
-            api.bind( 'ready', function () {
-                _.each( section.controls().slice( 0, 3 ), function ( control ) {
-                    var img, src = control.params.theme.screenshot[0];
-                    if ( src ) {
-                        img = new Image();
-                        img.src = src;
+                count = section.contentContainer.find( 'li.customize-control:visible' ).length;
+                $( '.control-panel-themes' ).find( '.theme-count' ).text( count );
+            });
+
+            // Event listeners for queries with user-entered terms.
+            if ( 'search' === section.params.action ) {
+                var debounced = _.debounce( section.checkTerm, 500 ); // Wait until there is no input for 500 milliseconds to initiate a search.
+                $( '.control-panel-themes' ).on( 'input', '#wp-filter-search-input', function() {
+                    debounced( section );
+                    if ( ! section.expanded() ) {
+                        section.expand();
                     }
                 });
+
+                // Focus the input if the icon is clicked.
+                section.filterContainer.find( '.search-form' ).on( 'click', function( e ) {
+                    if ( ! $( e.currentTarget ).hasClass( 'wp-filter-search' ) ) {
+                        $( e.currentTarget ).find( '.wp-filter-search' ).focus();
+                    }
+                });
+            } else if ( 'favorites' === section.params.action ) {
+                section.container.on( 'click', '.favorites-form-submit', function() {
+                    section.checkTerm( section );
+                });
+                section.container.on( 'keydown', '#wporg-username-input', function( e ) {
+                    if ( api.utils.isKeydownButNotEnterEvent( e ) ) {
+                        return;
+                    }
+                    section.checkTerm( section );
+                });
+            } else if ( 'feature_filter' === section.params.action ) {
+                section.container.on( 'click', '.filter-group input', function() {
+                    section.filtersChecked();
+                    section.checkTerm( section );
+                });
+
+                // Toggle feature filter sections.
+                section.container.on( 'click', '.filter-group legend button', function( e ) {
+                    $( e.currentTarget )
+                        .toggleClass( 'open' )
+                        .attr('aria-expanded', function ( i, attr ) {
+                            return attr === 'true' ? 'false' : 'true';
+                        })
+                        .parent().next( '.filter-group-feature' ).slideToggle( 180 );
+                });
+            }
+
+            // Move section controls to the themes area.
+            api.bind( 'ready', function () {
+                section.contentContainer = section.container.find( '.customize-themes-section' );
+                section.contentContainer.appendTo( $( '.customize-themes-full-container' ) );
+                section.container.add( section.filterContainer );
             });
         },
@@ -1198 +1267 @@
          * @param {Object}   args
          * @param {Boolean}  args.unchanged
-         * @param {Callback} args.completeCallback
+         * @param {Function} args.completeCallback
          */
         onChangeExpanded: function ( expanded, args ) {
@@ -1211 +1280 @@
 
             // Note: there is a second argument 'args' passed
-            var panel = this,
-                section = panel.contentContainer,
-                overlay = section.closest( '.wp-full-overlay' ),
-                container = section.closest( '.wp-full-overlay-sidebar-content' ),
-                customizeBtn = section.find( '.customize-theme' ),
-                changeBtn = panel.headContainer.find( '.change-theme' );
-
-            if ( expanded && ! section.hasClass( 'current-panel' ) ) {
+            var section = this,
+                container = section.contentContainer.closest( '.customize-themes-full-container' );
+
+            if ( expanded ) {
+
+                if ( -1 !== $.inArray( section.params.action, [ 'search', 'favorites', 'feature_filter' ] ) && '' === section.term ) {
+                    section.collapse(); // Note that the current section hasn't been collapsed yet, so this is all we need to do to do nothing.
+                    return; // Don't expand to an empty section that can't load any themes.
+                }
+
+                // Load controls if none are loaded yet.
+                if ( 0 === section.loaded ) {
+                    section.loadControls();
+                }
+
                 // Collapse any sibling sections/panels
                 api.section.each( function ( otherSection ) {
-                    if ( otherSection !== panel ) {
+                    if ( otherSection !== section ) {
                         otherSection.collapse( { duration: args.duration } );
                     }
                 });
-                api.panel.each( function ( otherPanel ) {
-                    otherPanel.collapse( { duration: 0 } );
-                });
-
-                panel._animateChangeExpanded( function() {
-                    changeBtn.attr( 'tabindex', '-1' );
-                    customizeBtn.attr( 'tabindex', '0' );
-
-                    customizeBtn.focus();
-                    section.css( 'top', '' );
-                    container.scrollTop( 0 );
-
-                    if ( args.completeCallback ) {
-                        args.completeCallback();
+
+                section.contentContainer.addClass( 'current-section' );
+                container.scrollTop();
+                section.filterContainer.find( '.customize-themes-section-title' ).addClass( 'selected' );
+
+                container.on( 'scroll', _.throttle( section.renderScreenshots, 300 ) );
+                container.on( 'scroll', _.throttle( section.loadMore, 300 ) );
+
+                if ( args.completeCallback ) {
+                    args.completeCallback();
+                }
+                section.updateCount(); // Show this section's count.
+            } else {
+                section.contentContainer.removeClass( 'current-section' );
+
+                // Always hide, even if they don't exist or are already hidden.
+                section.filterContainer.find( '.customize-themes-section-title' ).removeClass( 'selected details-open' ).attr( 'aria-expanded', 'false' );
+                section.filterContainer.find( '.filter-details' ).slideUp( 180 );
+
+                container.off( 'scroll' );
+
+                if ( args.completeCallback ) {
+                    args.completeCallback();
+                }
+            }
+        },
+
+        /**
+         * Return the section's content element without detachng from the parent.
+         *
+         * @since 4.7.0
+         */
+        getContent: function() {
+            return this.container.find( '.control-section-content' );
+        },
+
+        /**
+         * Load theme data via ajax and add themes to the section as controls.
+         *
+         * @since 4.7.0
+         */
+        loadControls: function() {
+            var section = this, params, page, request;
+
+            if ( section.loading ) {
+                return; // We're already loading a batch of themes.
+            }
+
+            // Parameters for every API query. Additional params are set in PHP.
+            page = Math.ceil( section.loaded / 100 ) + 1;
+            params = {
+                'switch-themes-nonce': api.settings.nonce['switch-themes'],
+                'wp_customize': 'on',
+                'theme_action': section.params.action,
+                'customized_theme': api.settings.theme.stylesheet,
+                'page': page
+            };
+
+            // Add fields for special request actions.
+            if ( 'search' === section.params.action ) {
+                if ( '' === section.term ) {
+                    return;
+                } else {
+                    params.search = section.term;
+                }
+            } else if ( 'favorites' === section.params.action ) {
+                if ( '' === section.term ) {
+                    return;
+                } else {
+                    params.user = section.term;
+                }
+            } else if ( 'feature_filter' === section.params.action ) {
+                if ( '' === section.term ) {
+                    return;
+                } else {
+                    params.tags = section.term;
+                }
+            }
+
+            // Load themes.
+            section.headContainer.closest( '.wp-full-overlay' ).addClass( 'loading' );
+            section.loading = true;
+            section.container.find( '.no-themes' ).hide();
+            request = wp.ajax.post( 'customize-load-themes', params );
+            request.done(function( data ) {
+                var themes = data.themes,
+                    themeControl, newThemeControls;
+                if ( 0 !== themes.length ) {
+                    newThemeControls = [];
+                    // Add controls for each theme.
+                    _.each( themes, function ( theme ) {
+                        var customizeId = section.params.action + '_theme_' + theme.id;
+                        themeControl = new api.controlConstructor.theme( customizeId, {
+                            params: {
+                                type: 'theme',
+                                content: '<li id="customize-control-theme-' + section.params.action + '_' + theme.id + '" class="customize-control customize-control-theme"></li>',
+                                section: section.params.id,
+                                active: true,
+                                theme: theme,
+                                priority: section.loaded + 1
+                            },
+                            previewer: api.previewer
+                        } );
+
+                        api.control.add( customizeId, themeControl );
+                        newThemeControls.push( themeControl );
+                        section.loaded = section.loaded + 1;
+                    });
+
+                    if ( 1 === page ) {
+                        // Pre-load the first 3 theme screenshots.
+                        _.each( section.controls().slice( 0, 3 ), function ( control ) {
+                            var img, src = control.params.theme.screenshot[0];
+                            if ( src ) {
+                                img = new Image();
+                                img.src = src;
+                            }
+                        });
+                        if ( 'search' === section.params.action ) {
+                            wp.a11y.speak( api.settings.l10n.themeSearchResults.replace( '%d', data.info.results ) );
+                        }
+                    } else {
+                        Array.prototype.push.apply( section.screenshotQueue, newThemeControls ); // Add new themes to the screenshot queue.
                     }
-                } );
-
-                overlay.addClass( 'in-themes-panel' );
-                section.addClass( 'current-panel' );
-
-            } else if ( ! expanded && section.hasClass( 'current-panel' ) ) {
-                panel._animateChangeExpanded( function() {
-                    changeBtn.attr( 'tabindex', '0' );
-                    customizeBtn.attr( 'tabindex', '-1' );
-
-                    changeBtn.focus();
-                    section.css( 'top', '' );
-
-                    if ( args.completeCallback ) {
-                        args.completeCallback();
+                    _.delay( section.renderScreenshots, 100 ); // Wait for the controls to become visible.
+
+                    if ( 'installed' === section.action || 100 > themes.length ) { // If we have less than the requested 100 themes, it's the end of the list.
+                        section.fullyLoaded = true;
                     }
-                } );
-
-                overlay.removeClass( 'in-themes-panel' );
-                section.removeClass( 'current-panel' );
+                } else {
+                    if ( 0 === section.loaded ) {
+                        section.container.find( '.no-themes' ).show();
+                        wp.a11y.speak( section.container.find( '.no-themes' ).text() );
+                    } else {
+                        section.fullyLoaded = true;
+                    }
+                }
+                if ( 'installed' === section.params.action ) {
+                    section.updateCount();
+                } else {
+                    section.updateCount( data.info.results );
+                }
+                section.container.find( '.unexpected-error' ).hide(); // Hide error notice in case it was previously shown.
+
+                // This cannot run on request.always, as section.loading may turn false before the new controls load in the success case.
+                section.headContainer.closest( '.wp-full-overlay' ).removeClass( 'loading' );
+                section.loading = false;
+            });
+            request.fail(function( data ) {
+                if ( 'undefined' === typeof data ) {
+                    section.container.find( '.unexpected-error' ).show();
+                    wp.a11y.speak( section.container.find( '.unexpected-error' ).text() );
+                } else if ( typeof console !== 'undefined' && console.error ) {
+                    console.error( data );
+                }
+
+                // This cannot run on request.always, as section.loading may turn false before the new controls load in the success case.
+                section.headContainer.closest( '.wp-full-overlay' ).removeClass( 'loading' );
+                section.loading = false;
+            });
+        },
+
+        /**
+         * Determines whether more themes should be loaded, and loads them.
+         *
+         * @since 4.7.0
+         */
+        loadMore: function() {
+            var section = this, container, bottom, threshold;
+            if ( ! section.fullyLoaded && ! section.loading ) {
+                container = section.container.closest( '.customize-themes-full-container' );
+
+                bottom = container.scrollTop() + container.height();
+                threshold = container.prop( 'scrollHeight' ) - 3000; // Use a fixed distance to the bottom of loaded results to avoid unnecessarily loading results sooner when using a percentage of scroll distance.
+
+                if ( bottom > threshold ) {
+                    section.loadControls();
+                }
+            }
+        },
+
+        /**
+         * Event handler for search, feature filter, and favorites input that determines if the term has changed and loads new controls as needed.
+         *
+         * @since 4.7.0
+         *
+         * @param {wp.customize.ThemesSection} section The current theme section, passed through the debouncer.
+         */
+        checkTerm: function( section ) {
+            var newTerm;
+
+            // Find term.
+            if ( 'search' === section.params.action ) {
+                newTerm = $( '#wp-filter-search-input' ).val();
+            } else if ( 'favorites' === section.params.action ) {
+                newTerm = $( '#wporg-username-input' ).val();
+            } else if ( 'feature_filter' === section.params.action ) {
+                newTerm = section.term; // Set separately by filtersChecked(), as they're changed.
+                if ( '' === newTerm ) {
+                    return;
+                }
+            } else {
+                return;
+            }
+
+            if ( section.term === newTerm && 'feature_filter' !== section.params.action ) {
+                return;
+            }
+
+            // Clear the controls in the section.
+            _.each( section.controls(), function( control ) {
+                control.container.remove();
+                api.control.remove( control.id );
+            });
+            section.loaded = 0;
+            section.fullyLoaded = false;
+            section.screenshotQueue = null;
+
+            if ( '' !== newTerm ) { // Empty term should not show any results.
+                // Run a new query, with loadControls handling paging, etc.
+                section.term = newTerm;
+                section.loadControls();
+                if ( ! section.expanded() ) {
+                    section.expand(); // Expand the section if it isn't expanded.
+                }
+            }
+        },
+
+        /**
+         * Check for filters checked in the feature filter list.
+         *
+         * @since 4.7.0
+         */
+        filtersChecked: function() {
+            var section = this,
+                items = section.container.find( '.filter-group' ).find( ':checkbox' ),
+                tags = [];
+
+            if ( 'feature_filter' !== section.params.action ) {
+                return false;
+            }
+
+            _.each( items.filter( ':checked' ), function( item ) {
+                tags.push( $( item ).prop( 'value' ) );
+            });
+
+            // When no filters are checked, restore initial state and return
+            if ( tags.length === 0 ) {
+                section.term = '';
+            } else {
+                section.term = tags;
             }
         },
@@ -1271 +1563 @@
             var section = this;
 
-            // Fill queue initially.
-            if ( section.screenshotQueue === null ) {
-                section.screenshotQueue = section.controls();
-            }
-
-            // Are all screenshots rendered?
+            // Fill queue initially, or check for more if empty.
+            if ( section.screenshotQueue === null || 0 === section.screenshotQueue.length ) {
+                // Add controls that haven't had their screenshots rendered.
+                section.screenshotQueue = _.filter( section.controls(), function( control ) {
+                    return ! control.screenshotRendered;
+                });
+            }
+
+            // Are all screenshots rendered (for now)?
             if ( ! section.screenshotQueue.length ) {
                 return;
@@ -1312 +1607 @@
 
         /**
+         * Update the number of themes in the section.
+         *
+         * @since 4.7.0
+         */
+        updateCount: function ( count ) {
+            if ( ! count ) {
+                count = this.loaded;
+            }
+
+            var displayed = this.container.closest( '.control-panel-content' ).find( '.themes-displayed' ),
+                countEl = this.container.closest( '.control-panel-content' ).find( '.theme-count' );
+
+            if ( 0 === count ) {
+                countEl.text( count );
+            } else {
+                // Animate the count change for emphasis.
+                displayed.fadeOut( 180, function() {
+                    countEl.text( count );
+                    displayed.fadeIn( 180 );
+                } );
+                wp.a11y.speak( api.settings.l10n.announceThemeCount.replace( '%d', count ) );
+            }
+        },
+
+        /**
          * Advance the modal to the next theme.
          *
@@ -1331 +1651 @@
          */
         getNextTheme: function () {
-            var control, next;
-            control = api.control( 'theme_' + this.currentTheme );
+            var section = this, control, next;
+            control = api.control( section.params.action + '_theme_' + this.currentTheme );
             next = control.container.next( 'li.customize-control-theme' );
             if ( ! next.length ) {
                 return false;
             }
-            next = next[0].id.replace( 'customize-control-', '' );
+            next = next[0].id.replace( 'customize-control-theme-' + section.params.action, section.params.action + '_theme' );
             control = api.control( next );
 
@@ -1363 +1683 @@
          */
         getPreviousTheme: function () {
-            var control, previous;
-            control = api.control( 'theme_' + this.currentTheme );
+            var section = this, control, previous;
+            control = api.control( section.params.action + '_theme_' + this.currentTheme );
             previous = control.container.prev( 'li.customize-control-theme' );
             if ( ! previous.length ) {
                 return false;
             }
-            previous = previous[0].id.replace( 'customize-control-', '' );
+            previous = previous[0].id.replace( 'customize-control-theme-' + section.params.action, section.params.action + '_theme' );
             control = api.control( previous );
 
@@ -1387 +1707 @@
                 this.overlay.find( '.left' ).addClass( 'disabled' );
             }
-        },
-
-        /**
-         * Load theme preview.
-         *
-         * @since 4.7.0
-         *
-         * @param {string} themeId Theme ID.
-         * @returns {jQuery.promise} Promise.
-         */
-        loadThemePreview: function( themeId ) {
-            var deferred = $.Deferred(), onceProcessingComplete, overlay, urlParser;
-
-            urlParser = document.createElement( 'a' );
-            urlParser.href = location.href;
-            urlParser.search = $.param( _.extend(
-                api.utils.parseQueryString( urlParser.search.substr( 1 ) ),
-                {
-                    theme: themeId,
-                    changeset_uuid: api.settings.changeset.uuid
-                }
-            ) );
-
-            overlay = $( '.wp-full-overlay' );
-            overlay.addClass( 'customize-loading' );
-
-            onceProcessingComplete = function() {
-                var request;
-                if ( api.state( 'processing' ).get() > 0 ) {
-                    return;
-                }
-
-                api.state( 'processing' ).unbind( onceProcessingComplete );
-
-                request = api.requestChangesetUpdate();
-                request.done( function() {
-                    $( window ).off( 'beforeunload.customize-confirm' );
-                    window.location.href = urlParser.href;
-                } );
-                request.fail( function() {
-                    overlay.removeClass( 'customize-loading' );
-                } );
-            };
-
-            if ( 0 === api.state( 'processing' ).get() ) {
-                onceProcessingComplete();
-            } else {
-                api.state( 'processing' ).bind( onceProcessingComplete );
-            }
-
-            return deferred.promise();
         },
 
@@ -1457 +1726 @@
             section.containFocus( section.overlay );
             section.updateLimits();
+            wp.a11y.speak( api.settings.l10n.announceThemeDetails.replace( '%s', theme.name ) );
 
             link = section.overlay.find( '.inactive-theme > a' );
-
             link.on( 'click', function( event ) {
                 event.preventDefault();
@@ -1469 +1738 @@
                 link.addClass( 'disabled' );
 
-                section.loadThemePreview( theme.id ).fail( function() {
+                api.panel( 'themes' ).loadThemePreview( theme.id ).fail( function() {
                     link.removeClass( 'disabled' );
                 } );
@@ -1484 +1753 @@
             $( 'body' ).removeClass( 'modal-open' );
             this.overlay.fadeOut( 'fast' );
-            api.control( 'theme_' + this.currentTheme ).focus();
+            api.control( this.params.action + '_theme_' + this.currentTheme ).container.find( '.theme' ).focus();
         },
 
@@ -1564 +1833 @@
             if ( ! panel.contentContainer.parent().is( panel.headContainer ) ) {
                 container.append( panel.contentContainer );
-                panel.renderContent();
-            }
+            }
+            panel.renderContent();
 
             panel.deferred.embedded.resolve();
@@ -1753 +2022 @@
         }
     });
+
+
+    /**
+     * wp.customize.ThemesPanel
+     *
+     * Custom section for themes that displays without the customize preview.
+     *
+     * @constructor
+     * @augments wp.customize.Panel
+     * @augments wp.customize.Container
+     */
+    api.ThemesPanel = api.Panel.extend({
+        installingThemes: [],
+
+        /**
+         * @since 4.7.0
+         */
+        attachEvents: function () {
+            var panel = this;
+
+            // Attach regular panel events.
+            api.Panel.prototype.attachEvents.apply( this );
+
+            // Collapse panel to customize the current theme.
+            panel.contentContainer.on( 'click', '.customize-theme', function() {
+                panel.collapse();
+            });
+
+            // Toggle between filtering and browsing themes on mobile.
+            panel.contentContainer.on( 'click', '.see-themes, .filter-themes', function() {
+                $( '.wp-full-overlay' ).toggleClass( 'showing-themes' );
+            });
+
+            // Install (and maybe preview) a theme.
+            panel.contentContainer.on( 'click', '.theme-install', function( event ) {
+                panel.installTheme( event );
+            });
+
+            // Update a theme. Theme cards have the class, the details modal has the id.
+            panel.contentContainer.on( 'click', '.update-theme, #update-theme', function( event ) {
+                // #update-theme is a link.
+                event.preventDefault();
+                event.stopPropagation();
+
+                panel.updateTheme( event );
+            });
+
+            // Delete a theme.
+            panel.contentContainer.on( 'click', '.delete-theme', function( event ) {
+                panel.deleteTheme( event );
+            });
+
+            _.bindAll( this, 'installTheme', 'updateTheme' );
+        },
+
+        /**
+         * Update UI to reflect expanded state
+         *
+         * @since 4.7.0
+         *
+         * @param {Boolean}  expanded
+         * @param {Object}   args
+         * @param {Boolean}  args.unchanged
+         * @param {Function} args.completeCallback
+         */
+        onChangeExpanded: function ( expanded, args ) {
+
+            // Expand/collapse the panel normally.
+            api.Panel.prototype.onChangeExpanded.apply( this, [ expanded, args ] );
+
+            // Immediately call the complete callback if there were no changes
+            if ( args.unchanged ) {
+                if ( args.completeCallback ) {
+                    args.completeCallback();
+                }
+                return;
+            }
+
+            // Note: there is a second argument 'args' passed
+            var panel = this,
+                overlay = panel.headContainer.closest( '.wp-full-overlay' );
+
+            if ( expanded ) {
+                overlay
+                    .addClass( 'in-themes-panel' ).addClass( 'showing-themes' )
+                    .delay( 200 ).find( '.customize-themes-full-container' ).addClass( 'animate' );
+
+                // Automatically open the installed themes section.
+                api.section( 'installed_themes' ).expand();
+            } else {
+                overlay
+                    .removeClass( 'in-themes-panel' )
+                    .find( '.customize-themes-full-container' ).removeClass( 'animate' );
+            }
+        },
+
+        /**
+         * Install a theme via wp.updates.
+         *
+         * @since 4.7.0
+         */
+        installTheme: function( event ) {
+            var panel = this, preview = false, slug = $( event.target ).data( 'slug' );
+
+            if ( -1 !== $.inArray( this.installingThemes, slug ) ) {
+                return; // Theme is already being installed.
+            }
+
+            wp.updates.maybeRequestFilesystemCredentials( event );
+
+            $( document ).one( 'wp-theme-install-success', function( event, response ) {
+                var theme = false, customizeId, themeControl;
+                if ( preview ) {
+
+                    panel.loadThemePreview( slug ).fail( function() {
+                        $( '.wp-full-overlay' ).removeClass( 'customize-loading' );
+                    } );
+
+                } else {
+                    api.control.each( function( control ) {
+                        if ( 'theme' === control.params.type && control.params.theme.id === response.slug ) {
+                            theme = control.params.theme; // Used below to add theme control.
+                            control.rerenderAsInstalled( true );
+                        }
+                    });
+
+                    // Don't add the same theme more than once.
+                    if ( ! theme || 'undefined' !== typeof api.control( 'installed_theme_' + theme.id ) ) {
+                        return;
+                    }
+
+                    // Add theme control to installed section.
+                    theme.type = 'installed';
+                    customizeId = 'installed_theme_' + theme.id;
+                    themeControl = new api.controlConstructor.theme( customizeId, {
+                        params: {
+                            type: 'theme',
+                            content: $( '<li class="customize-control customize-control-theme"></li>' ).attr( 'id', 'customize-control-theme-installed_' + theme.id ).prop( 'outerHTML' ),
+                            section: 'installed_themes',
+                            active: true,
+                            theme: theme,
+                            priority: 0 // Add all newly-installed themes to the top.
+                        },
+                        previewer: api.previewer
+                    } );
+
+                    api.control.add( customizeId, themeControl );
+                    api.control( customizeId ).container.trigger( 'render-screenshot' );
+
+                    // Close the details modal if it's open to the installed theme.
+                    api.section.each( function( section ) {
+                        if ( 'themes' === section.params.type ) {
+                            if ( theme.id === section.currentTheme ) { // Don't close the modal if the user has navigated elsewhere.
+                                section.closeDetails();
+                            }
+                        }
+                    });
+                }
+            } );
+
+            this.installingThemes.push( $( event.target ).data( 'slug' ) ); // Note: we don't remove elements from installingThemes, since they shouldn't be installed again.
+            wp.updates.installTheme( {
+                slug: slug
+            } );
+
+            // Also preview the theme as the event is triggered on Install & Preview.
+            if ( $( event.target ).hasClass( 'preview' ) ) {
+                preview = true;
+                $( '.wp-full-overlay' ).addClass( 'customize-loading' );
+            }
+        },
+
+        /**
+         * Load theme preview.
+         *
+         * @since 4.7.0
+         *
+         * @param {string} themeId Theme ID.
+         * @returns {jQuery.promise} Promise.
+         */
+        loadThemePreview: function( themeId ) {
+            var deferred = $.Deferred(), onceProcessingComplete, overlay, urlParser;
+
+            urlParser = document.createElement( 'a' );
+            urlParser.href = location.href;
+            urlParser.search = $.param( _.extend(
+                api.utils.parseQueryString( urlParser.search.substr( 1 ) ),
+                {
+                    theme: themeId,
+                    changeset_uuid: api.settings.changeset.uuid
+                }
+            ) );
+
+            overlay = $( '.wp-full-overlay' );
+            overlay.addClass( 'customize-loading' );
+
+            onceProcessingComplete = function() {
+                var request;
+                if ( api.state( 'processing' ).get() > 0 ) {
+                    return;
+                }
+
+                api.state( 'processing' ).unbind( onceProcessingComplete );
+
+                request = api.requestChangesetUpdate();
+                request.done( function() {
+                    $( window ).off( 'beforeunload.customize-confirm' );
+                    window.location.href = urlParser.href;
+                } );
+                request.fail( function() {
+                    overlay.removeClass( 'customize-loading' );
+                } );
+            };
+
+            if ( 0 === api.state( 'processing' ).get() ) {
+                onceProcessingComplete();
+            } else {
+                api.state( 'processing' ).bind( onceProcessingComplete );
+            }
+
+            return deferred.promise();
+        },
+
+        /**
+         * Update a theme via wp.updates.
+         *
+         * @since 4.7.0
+         */
+        updateTheme: function( event ) {
+            wp.updates.maybeRequestFilesystemCredentials( event );
+
+            $( document ).one( 'wp-theme-update-success', function( event, response ) {
+                // Rerender the control to reflect the update.
+                api.control.each( function( control ) {
+                    if ( 'theme' === control.params.type && control.params.theme.id === response.slug ) {
+                        control.params.theme.hasUpdate = false;
+                        control.rerenderAsInstalled( true );
+                    }
+                });
+            } );
+
+            wp.updates.updateTheme( {
+                slug: $( event.target ).closest( '.notice' ).data( 'slug' )
+            } );
+        },
+
+        /**
+         * Delete a theme via wp.updates.
+         *
+         * @since 4.7.0
+         */
+        deleteTheme: function( event ) {
+            var theme, section;
+            theme = $( event.target ).data( 'slug' );
+            section = api.section( 'installed_themes' );
+
+            event.preventDefault();
+
+            // Confirmation dialog for deleting a theme.
+            if ( ! window.confirm( api.settings.l10n.confirmDeleteTheme ) ) {
+                return;
+            }
+
+            wp.updates.maybeRequestFilesystemCredentials( event );
+
+            $( document ).one( 'wp-theme-delete-success', function() {
+                var control = api.control( 'installed_theme_' + theme );
+
+                // Remove theme control.
+                control.container.remove();
+                api.control.remove( control.id );
+
+                // Update installed count.
+                section.loaded = section.loaded - 1;
+                section.updateCount();
+
+                // Rerender any other theme controls as uninstalled.
+                api.control.each( function( control ) {
+                    if ( 'theme' === control.params.type && control.params.theme.id === theme ) {
+                        control.rerenderAsInstalled( false );
+                    }
+                });
+            } );
+
+            wp.updates.deleteTheme( {
+                slug: theme
+            } );
+
+            // Close modal and focus the section.
+            section.closeDetails();
+            section.focus();
+        }
+
+    });
+
 
     /**
@@ -2049 +2613 @@
          * @param {Object}   args
          * @param {Number}   args.duration
-         * @param {Callback} args.completeCallback
+         * @param {Function} args.completeCallback
          */
         onChangeActive: function ( active, args ) {
@@ -3072 +3636 @@
 
         touchDrag: false,
-        isRendered: false,
-
-        /**
-         * Defer rendering the theme control until the section is displayed.
-         *
-         * @since 4.2.0
-         */
-        renderContent: function () {
-            var control = this,
-                renderContentArgs = arguments;
-
-            api.section( control.section(), function( section ) {
-                if ( section.expanded() ) {
-                    api.Control.prototype.renderContent.apply( control, renderContentArgs );
-                    control.isRendered = true;
-                } else {
-                    section.expanded.bind( function( expanded ) {
-                        if ( expanded && ! control.isRendered ) {
-                            api.Control.prototype.renderContent.apply( control, renderContentArgs );
-                            control.isRendered = true;
-                        }
-                    } );
-                }
-            } );
-        },
+        screenshotRendered: false,
 
         /**
@@ -3120 +3660 @@
 
                 // Prevent the modal from showing when the user clicks the action button.
-                if ( $( event.target ).is( '.theme-actions .button' ) ) {
+                if ( $( event.target ).is( '.theme-actions .button, .update-theme' ) ) {
                     return;
                 }
 
-                api.section( control.section() ).loadThemePreview( control.params.theme.id );
-            });
-
-            control.container.on( 'click keydown', '.theme-actions .theme-details', function( event ) {
-                if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
-                    return;
-                }
-
                 event.preventDefault(); // Keep this AFTER the key filter above
-
                 api.section( control.section() ).showDetails( control.params.theme );
             });
@@ -3144 +3675 @@
                     $screenshot.attr( 'src', source );
                 }
-            });
-        },
-
-        /**
-         * Show or hide the theme based on the presence of the term in the title, description, and author.
+                control.screenshotRendered = true;
+            });
+        },
+
+        /**
+         * Show or hide the theme based on the presence of the term in the title, description, tags, and author.
          *
          * @since 4.2.0
@@ -3164 +3696 @@
                 control.deactivate();
             }
+        },
+
+        /**
+         * Rerender the theme from its JS template with the installed type.
+         *
+         * @since 4.7.0
+         */
+        rerenderAsInstalled: function( installed ) {
+            var control = this, section;
+            if ( installed ) {
+                control.params.theme.type = 'installed';
+            } else {
+                section = api.section( control.params.section );
+                control.params.theme.type = section.params.action;
+            }
+            control.renderContent(); // replaces existing content
+            control.container.trigger( 'render-screenshot' );
         }
     });
@@ -3845 +4394 @@
         theme:         api.ThemeControl
     };
-    api.panelConstructor = {};
+    api.panelConstructor = {
+        themes: api.ThemesPanel
+    };
     api.sectionConstructor = {
         themes: api.ThemesSection
@@ -3963 +4514 @@
         // Sort the sections within each panel
         api.panel.each( function ( panel ) {
+            if ( 'themes' === panel.id ) {
+                return; // Don't reflow theme sections, as doing so moves them after the themes container.
+            }
+            
             var sections = panel.sections(),
                 sectionHeadContainers = _.pluck( sections, 'headContainer' );
@@ -4568 +5123 @@
             collapsedObject = expandedControls[0] || expandedSections[0] || expandedPanels[0];
             if ( collapsedObject ) {
+                if ( 'themes' === collapsedObject.params.type ) {
+                    // Themes panel or section.
+                    if ( $( 'body' ).hasClass( 'modal-open' ) ) {
+                        collapsedObject.closeDetails();
+                    } else {
+                        // If we're collapsing a section, collapse the panel also.
+                        wp.customize.panel( 'themes' ).collapse();
+                    }
+                    return;
+                }
                 collapsedObject.collapse();
                 event.preventDefault();

trunk/src/wp-admin/js/updates.js

@@ -180 +180 @@
             $notice.replaceWith( $adminNotice );
         } else {
-            $( '.wrap' ).find( '> h1' ).after( $adminNotice );
+            if ( 'customize' === pagenow ) {
+                $( '.customize-themes-notifications' ).append( $adminNotice );
+            } else {
+                $( '.wrap' ).find( '> h1' ).after( $adminNotice );
+            }
         }
 
@@ -908 +912 @@
             $notice = $( '[data-slug="' + args.slug + '"]' ).find( '.update-message' ).removeClass( 'notice-error' ).addClass( 'updating-message notice-warning' ).find( 'p' );
 
+        } else if ( 'customize' === pagenow ) {
+
+            // Update the theme details UI.
+            $notice = $( '#update-theme' ).closest( '.notice' ).removeClass( 'notice-large' );
+
+            $notice.find( 'h3' ).remove();
+
+            // Add the top-level UI, and update both.
+            $notice = $notice.add( $( '#customize-control-theme-installed_' + args.slug ).find( '.update-message' ) );
+            $notice = $notice.addClass( 'updating-message' ).find( 'p' );
+
         } else {
             $notice = $( '#update-theme' ).closest( '.notice' ).removeClass( 'notice-large' );
@@ -950 +965 @@
             $notice, newText;
 
+        if ( 'customize' === pagenow ) {
+            $theme = wp.customize.control( 'installed_theme_' + response.slug ).container;
+        }
+
         if ( 'themes-network' === pagenow ) {
             $notice = $theme.find( '.update-message' );
@@ -1002 +1021 @@
         if ( wp.updates.maybeHandleCredentialError( response, 'update-theme' ) ) {
             return;
+        }
+
+        if ( 'customize' === pagenow ) {
+            $theme = wp.customize.control( 'installed_theme_' + response.slug ).container;
         }
 
@@ -1140 +1163 @@
         }
 
-        if ( $document.find( 'body' ).hasClass( 'full-overlay-active' ) ) {
-            $button = $( '.theme-install[data-slug="' + response.slug + '"]' );
-            $card   = $( '.install-theme-info' ).prepend( $message );
+        if ( 'customize' === pagenow ) {
+            if ( $document.find( 'body' ).hasClass( 'modal-open' ) ) {
+                $button = $( '.theme-install[data-slug="' + response.slug + '"]' );
+                $card   = $( '.theme-overlay .theme-info' ).prepend( $message );
+            } else {
+                $button = $( '.theme-install[data-slug="' + response.slug + '"]' );
+                $card   = $button.closest( '.theme' ).addClass( 'theme-install-failed' ).append( $message );
+            }
+            $( '.wp-full-overlay' ).removeClass( 'customize-loading' );
         } else {
-            $card   = $( '[data-slug="' + response.slug + '"]' ).removeClass( 'focus' ).addClass( 'theme-install-failed' ).append( $message );
-            $button = $card.find( '.theme-install' );
+            if ( $document.find( 'body' ).hasClass( 'full-overlay-active' ) ) {
+                $button = $( '.theme-install[data-slug="' + response.slug + '"]' );
+                $card   = $( '.install-theme-info' ).prepend( $message );
+            } else {
+                $card   = $( '[data-slug="' + response.slug + '"]' ).removeClass( 'focus' ).addClass( 'theme-install-failed' ).append( $message );
+                $button = $card.find( '.theme-install' );
+            }
         }
 

trunk/src/wp-includes/class-wp-customize-manager.php

@@ -295 +295 @@
         require_once( ABSPATH . WPINC . '/customize/class-wp-customize-nav-menus-panel.php' );
 
+        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-themes-panel.php' );
         require_once( ABSPATH . WPINC . '/customize/class-wp-customize-themes-section.php' );
         require_once( ABSPATH . WPINC . '/customize/class-wp-customize-sidebar-section.php' );
@@ -349 +350 @@
         add_action( 'wp_ajax_customize_save',           array( $this, 'save' ) );
         add_action( 'wp_ajax_customize_refresh_nonces', array( $this, 'refresh_nonces' ) );
+        add_action( 'wp_ajax_customize-load-themes',    array( $this, 'load_themes_ajax' ) );
 
         add_action( 'customize_register',                 array( $this, 'register_controls' ) );
@@ -362 +364 @@
         // Export the settings to JS via the _wpCustomizeSettings variable.
         add_action( 'customize_controls_print_footer_scripts', array( $this, 'customize_pane_settings' ), 1000 );
+
+        // Add theme update notices.
+        if ( current_user_can( 'install_themes' ) || current_user_can( 'update_themes' ) ) {
+            require_once( ABSPATH . '/wp-admin/includes/update.php' );
+            add_action( 'customize_controls_print_footer_scripts', 'wp_print_admin_notice_templates' );
+        }
     }
 
@@ -2585 +2593 @@
             $control->enqueue();
         }
+        if ( ! is_multisite() && ( current_user_can( 'install_themes' ) || current_user_can( 'update_themes' ) || current_user_can( 'delete_themes' ) ) ) {
+            wp_enqueue_script( 'updates' );
+        }
     }
 
@@ -2799 +2810 @@
             'save' => wp_create_nonce( 'save-customize_' . $this->get_stylesheet() ),
             'preview' => wp_create_nonce( 'preview-customize_' . $this->get_stylesheet() ),
+            'switch-themes' => wp_create_nonce( 'switch-themes' ),
         );
 
@@ -2872 +2884 @@
             'documentTitleTmpl' => $this->get_document_title_template(),
             'previewableDevices' => $this->get_previewable_devices(),
+            'l10n' => array(
+                'confirmDeleteTheme' => __( 'Are you sure you want to delete this theme?' ),
+                /* translators: %d is the number of theme search results, which cannot consider singular vs. plural forms */
+                'themeSearchResults' => __( '%d themes found' ),
+                /* translators: %d is the number of themes being displayed, which cannot consider singular vs. plural forms */
+                'announceThemeCount' => __( 'Displaying %d themes' ),
+                'announceThemeDetails' => __( 'Showing details for theme: %s' ),
+            ),
         );
 
@@ -2975 +2995 @@
         /* Panel, Section, and Control Types */
         $this->register_panel_type( 'WP_Customize_Panel' );
+        $this->register_panel_type( 'WP_Customize_Themes_Panel' );
         $this->register_section_type( 'WP_Customize_Section' );
         $this->register_section_type( 'WP_Customize_Sidebar_Section' );
+        $this->register_section_type( 'WP_Customize_Themes_Section' );
         $this->register_control_type( 'WP_Customize_Color_Control' );
         $this->register_control_type( 'WP_Customize_Media_Control' );
@@ -2986 +3008 @@
         $this->register_control_type( 'WP_Customize_Theme_Control' );
 
-        /* Themes */
-
-        $this->add_section( new WP_Customize_Themes_Section( $this, 'themes', array(
-            'title'      => $this->theme()->display( 'Name' ),
-            'capability' => 'switch_themes',
-            'priority'   => 0,
+        /* Themes (controls are loaded via ajax) */
+
+        $this->add_panel( new WP_Customize_Themes_Panel( $this, 'themes', array(
+            'title'       => $this->theme()->display( 'Name' ),
+            'description' => __( 'Once themes are installed, you can live-preview them on your site, customize them, and publish your new design. Browse available themes via the filters in this menu.' ),
+            'capability'  => 'switch_themes',
+            'priority'    => 0,
+        ) ) );
+
+        $this->add_section( new WP_Customize_Themes_Section( $this, 'installed_themes', array(
+            'title'       => __( 'Installed' ),
+            'text_before' => __( 'Your local site' ),
+            'action'      => 'installed',
+            'capability'  => 'switch_themes',
+            'panel'       => 'themes',
+            'priority'    => 0,
+        ) ) );
+
+        $this->add_section( new WP_Customize_Themes_Section( $this, 'search_themes', array(
+            'title'       => __( 'Search themes…' ),
+            'text_before' => __( 'Browse all WordPress.org themes' ),
+            'action'      => 'search',
+            'capability'  => 'install_themes',
+            'panel'       => 'themes',
+            'priority'    => 5,
+        ) ) );
+
+        $this->add_section( new WP_Customize_Themes_Section( $this, 'featured_themes', array(
+            'title'      => __( 'Featured' ),
+            'action'     => 'featured',
+            'capability' => 'install_themes',
+            'panel'      => 'themes',
+            'priority'   => 10,
+        ) ) );
+
+        $this->add_section( new WP_Customize_Themes_Section( $this, 'popular_themes', array(
+            'title'      => __( 'Popular' ),
+            'action'     => 'popular',
+            'capability' => 'install_themes',
+            'panel'      => 'themes',
+            'priority'   => 15,
+        ) ) );
+
+        $this->add_section( new WP_Customize_Themes_Section( $this, 'latest_themes', array(
+            'title'      => __( 'Latest' ),
+            'action'     => 'latest',
+            'capability' => 'install_themes',
+            'panel'      => 'themes',
+            'priority'   => 20,
+        ) ) );
+
+        $this->add_section( new WP_Customize_Themes_Section( $this, 'feature_filter_themes', array(
+            'title'      => __( 'Feature Filter' ),
+            'action'     => 'feature_filter',
+            'capability' => 'install_themes',
+            'panel'      => 'themes',
+            'priority'   => 25,
+        ) ) );
+
+        $this->add_section( new WP_Customize_Themes_Section( $this, 'favorites_themes', array(
+            'title'      => __( 'Favorites' ),
+            'action'     => 'favorites',
+            'capability' => 'install_themes',
+            'panel'      => 'themes',
+            'priority'   => 30,
         ) ) );
 
@@ -2998 +3079 @@
             'capability' => 'switch_themes',
         ) ) );
-
-        require_once( ABSPATH . 'wp-admin/includes/theme.php' );
-
-        // Theme Controls.
-
-        // Add a control for the active/original theme.
-        if ( ! $this->is_theme_active() ) {
-            $themes = wp_prepare_themes_for_js( array( wp_get_theme( $this->original_stylesheet ) ) );
-            $active_theme = current( $themes );
-            $active_theme['isActiveTheme'] = true;
-            $this->add_control( new WP_Customize_Theme_Control( $this, $active_theme['id'], array(
-                'theme'    => $active_theme,
-                'section'  => 'themes',
-                'settings' => 'active_theme',
-            ) ) );
-        }
-
-        $themes = wp_prepare_themes_for_js();
-        foreach ( $themes as $theme ) {
-            if ( $theme['active'] || $theme['id'] === $this->original_stylesheet ) {
-                continue;
-            }
-
-            $theme_id = 'theme_' . $theme['id'];
-            $theme['isActiveTheme'] = false;
-            $this->add_control( new WP_Customize_Theme_Control( $this, $theme_id, array(
-                'theme'    => $theme,
-                'section'  => 'themes',
-                'settings' => 'active_theme',
-            ) ) );
-        }
 
         /* Site Identity */
@@ -3357 +3407 @@
 
     /**
+     * Load themes into the theme browsing/installation UI.
+     *
+     * @since 4.7.0
+     * @access public
+     */
+    public function load_themes_ajax() {
+        check_ajax_referer( 'switch-themes', 'switch-themes-nonce' );
+
+        if ( ! current_user_can( 'switch_themes' ) ) {
+            wp_die( -1 );
+        }
+
+        if ( empty( $_POST['theme_action'] ) ) {
+            wp_send_json_error( 'missing_theme_action' );
+        }
+
+        if ( 'search' === $_POST['theme_action'] && ! array_key_exists( 'search', $_POST ) ) {
+            wp_send_json_error( 'empty_search' );
+        } elseif ( 'favorites' === $_POST['theme_action'] && ! array_key_exists( 'user', $_POST ) ) {
+            wp_send_json_error( 'empty_user' );
+        } elseif ( 'feature_filter' === $_POST['theme_action'] && ! array_key_exists( 'tags', $_POST ) ) {
+            wp_send_json_error( 'no_features' );
+        }
+
+        require_once( ABSPATH . 'wp-admin/includes/theme.php' );
+        if ( 'installed' === $_POST['theme_action'] ) {
+            $themes = array( 'themes' => wp_prepare_themes_for_js() );
+            foreach ( $themes['themes'] as &$theme ) {
+                $theme['type'] = 'installed';
+                // Set active based on customized theme.
+                if ( $_POST['customized_theme'] === $theme['id'] ) {
+                    $theme['active'] = true;
+                } else {
+                    $theme['active'] = false;
+                }
+            }
+        } else {
+            if ( ! current_user_can( 'install_themes' ) ) {
+                wp_die( -1 );
+            }
+
+            // Arguments for all queries.
+            $args = array(
+                'per_page' => 100,
+                'page' => absint( $_POST['page'] ),
+                'fields' => array(
+                    'slug' => true,
+                    'screenshot' => true,
+                    'description' => true,
+                    'requires' => true,
+                    'rating' => true,
+                    'downloaded' => true,
+                    'downloadLink' => true,
+                    'last_updated' => true,
+                    'homepage' => true,
+                    'num_ratings' => true,
+                    'tags' => true,
+                ),
+            );
+
+            // Specialized handling for each query.
+            switch ( $_POST['theme_action'] ) {
+                case 'search':
+                    $args['search'] = wp_unslash( $_POST['search'] );
+                    break;
+                case 'favorites':
+                    $args['user'] = wp_unslash( $_POST['user'] );
+                case 'featured':
+                case 'popular':
+                    $args['browse'] = wp_unslash( $_POST['theme_action'] );
+                    break;
+                case 'latest':
+                    $args['browse'] = 'new';
+                    break;
+                case 'feature_filter':
+                    $args['tag'] = wp_unslash( $_POST['tags'] );
+                    break;
+            }
+
+            // Load themes from the .org API.
+            $themes = themes_api( 'query_themes', $args );
+            if ( is_wp_error( $themes ) ) {
+                wp_send_json_error();
+            }
+
+            // This list matches the allowed tags in wp-admin/includes/theme-install.php.
+            $themes_allowedtags = array('a' => array('href' => array(), 'title' => array(), 'target' => array()),
+                'abbr' => array('title' => array()), 'acronym' => array('title' => array()),
+                'code' => array(), 'pre' => array(), 'em' => array(), 'strong' => array(),
+                'div' => array(), 'p' => array(), 'ul' => array(), 'ol' => array(), 'li' => array(),
+                'h1' => array(), 'h2' => array(), 'h3' => array(), 'h4' => array(), 'h5' => array(), 'h6' => array(),
+                'img' => array('src' => array(), 'class' => array(), 'alt' => array())
+            );
+
+            // Prepare a list of installed themes to check against before the loop.
+            $installed_themes = array();
+            $wp_themes = wp_get_themes();
+            foreach ( $wp_themes as $theme ) {
+                $installed_themes[] = $theme->get_stylesheet();
+            }
+            $update_php = network_admin_url( 'update.php?action=install-theme' );
+            foreach ( $themes->themes as &$theme ) {
+                $theme->install_url = add_query_arg( array(
+                    'theme'    => $theme->slug,
+                    '_wpnonce' => wp_create_nonce( 'install-theme_' . $theme->slug ),
+                ), $update_php );
+
+                $theme->name        = wp_kses( $theme->name, $themes_allowedtags );
+                $theme->author      = wp_kses( $theme->author, $themes_allowedtags );
+                $theme->version     = wp_kses( $theme->version, $themes_allowedtags );
+                $theme->description = wp_kses( $theme->description, $themes_allowedtags );
+                $theme->tags        = implode( ', ', $theme->tags );
+                $theme->stars       = wp_star_rating( array( 'rating' => $theme->rating, 'type' => 'percent', 'number' => $theme->num_ratings, 'echo' => false ) );
+                $theme->num_ratings = number_format_i18n( $theme->num_ratings );
+                $theme->preview_url = set_url_scheme( $theme->preview_url );
+
+                // Handle themes that are already installed as installed themes.
+                if ( in_array( $theme->slug, $installed_themes, true ) ) {
+                    $theme->type = 'installed';
+                } else {
+                    $theme->type = $_POST['theme_action'];
+                }
+
+                // Set active based on customized theme.
+                if ( $_POST['customized_theme'] === $theme->slug ) {
+                    $theme->active = true;
+                } else {
+                    $theme->active = false;
+                }
+
+                // Map available theme properties to installed theme properties.
+                $theme->id           = $theme->slug;
+                $theme->screenshot   = array( $theme->screenshot_url );
+                $theme->authorAndUri = $theme->author;
+                unset( $theme->slug );
+                unset( $theme->screenshot_url );
+                unset( $theme->author );
+            } // End foreach().
+        } // End if().
+        wp_send_json_success( $themes );
+    }
+
+
+    /**
      * Callback for validating the header_textcolor value.
      *

trunk/src/wp-includes/customize/class-wp-customize-theme-control.php

@@ -63 +63 @@
      */
     public function content_template() {
-        $current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] );
-        $active_url  = esc_url( remove_query_arg( 'customize_theme', $current_url ) );
-        $preview_url = esc_url( add_query_arg( 'customize_theme', '__THEME__', $current_url ) ); // Token because esc_url() strips curly braces.
-        $preview_url = str_replace( '__THEME__', '{{ data.theme.id }}', $preview_url );
+        /* translators: %s: theme name */
+        $details_label = sprintf( __( 'Details for theme: %s' ), '{{ data.theme.name }}' );
+        /* translators: %s: theme name */
+        $customize_label = sprintf( __( 'Customize theme: %s' ), '{{ data.theme.name }}' );
+        /* translators: %s: theme name */
+        $preview_label = sprintf( __( 'Live preview theme: %s' ), '{{ data.theme.name }}' );
+        /* translators: %s: theme name */
+        $install_label = sprintf( __( 'Install and preview theme: %s' ), '{{ data.theme.name }}' );
         ?>
-        <# if ( data.theme.isActiveTheme ) { #>
-            <div class="theme active" tabindex="0" data-preview-url="<?php echo esc_attr( $active_url ); ?>" aria-describedby="{{ data.theme.id }}-action {{ data.theme.id }}-name">
+        <# if ( data.theme.active ) { #>
+            <div class="theme active" tabindex="0" aria-describedby="{{ data.section }}-{{ data.theme.id }}-action {{ data.theme.id }}-name">
         <# } else { #>
-            <div class="theme" tabindex="0" data-preview-url="<?php echo esc_attr( $preview_url ); ?>" aria-describedby="{{ data.theme.id }}-action {{ data.theme.id }}-name">
+            <div class="theme" tabindex="0" aria-describedby="{{ data.section }}-{{ data.theme.id }}-action {{ data.theme.id }}-name">
         <# } #>
 
-            <# if ( data.theme.screenshot[0] ) { #>
+            <# if ( data.theme.screenshot && data.theme.screenshot[0] ) { #>
                 <div class="theme-screenshot">
                     <img data-src="{{ data.theme.screenshot[0] }}" alt="" />
@@ -82 +86 @@
             <# } #>
 
-            <# if ( data.theme.isActiveTheme ) { #>
-                <span class="more-details" id="{{ data.theme.id }}-action"><?php _e( 'Customize' ); ?></span>
-            <# } else { #>
-                <span class="more-details" id="{{ data.theme.id }}-action"><?php _e( 'Live Preview' ); ?></span>
+            <span class="more-details theme-details" id="{{ data.section }}-{{ data.theme.id }}-action" aria-label="<?php echo esc_attr( $details_label ); ?>"><?php _e( 'Theme Details' ); ?></span>
+
+
+            <# if ( 'installed' === data.theme.type && data.theme.hasUpdate ) { #>
+                <div class="update-message notice inline notice-warning notice-alt" data-slug="{{ data.theme.id }}"><p><?php printf( __( 'New version available. %s' ), '<button class="button-link update-theme" type="button">' . __( 'Update now' ) . '</button>' ); ?></p></div>
             <# } #>
 
-            <div class="theme-author"><?php printf( __( 'By %s' ), '{{ data.theme.author }}' ); ?></div>
-
-            <# if ( data.theme.isActiveTheme ) { #>
-                <h3 class="theme-name" id="{{ data.theme.id }}-name">
+            <# if ( data.theme.active ) { #>
+                <h3 class="theme-name" id="{{ data.section }}-{{ data.theme.id }}-name">
                     <?php
                     /* translators: %s: theme name */
-                    printf( __( '<span>Active:</span> %s' ), '{{{ data.theme.name }}}' );
+                    printf( __( '<span>Current:</span> %s' ), '{{ data.theme.name }}' );
                     ?>
                 </h3>
+                <div class="theme-actions">
+                    <button type="button" class="button button-primary customize-theme" aria-label="<?php echo esc_attr( $customize_label ); ?>"><?php _e( 'Customize' ); ?></button>
+                </div>
+                <div class="notice notice-success notice-alt"><p><?php _e( 'Installed' ); ?></p></div>
+            <# } else if ( 'installed' === data.theme.type ) { #>
+                <h3 class="theme-name" id="{{ data.section }}-{{ data.theme.id }}-name">{{ data.theme.name }}</h3>
+                <div class="theme-actions">
+                    <button type="button" class="button button-primary preview-theme" aria-label="<?php echo esc_attr( $preview_label ); ?>" data-theme-id="{{ data.theme.id }}"><?php _e( 'Live Preview' ); ?></span>
+                </div>
+                <div class="notice notice-success notice-alt"><p><?php _e( 'Installed' ); ?></p></div>
             <# } else { #>
-                <h3 class="theme-name" id="{{ data.theme.id }}-name">{{{ data.theme.name }}}</h3>
+                <h3 class="theme-name" id="{{ data.section }}-{{ data.theme.id }}-name">{{ data.theme.name }}</h3>
                 <div class="theme-actions">
-                    <button type="button" class="button theme-details"><?php _e( 'Theme Details' ); ?></button>
+                    <button type="button" class="button button-primary theme-install preview" aria-label="<?php echo esc_attr( $install_label ); ?>" data-slug="{{ data.theme.id }}" data-name="{{ data.theme.name }}" data-theme-id="{{ data.theme.id }}"><?php _e( 'Install & Preview' ); ?></button>
                 </div>
             <# } #>

trunk/src/wp-includes/customize/class-wp-customize-themes-section.php

@@ -11 +11 @@
  * Customize Themes Section class.
  *
- * A UI container for theme controls, which behaves like a backwards Panel.
+ * A UI container for theme controls, which are displayed in tabbed sections.
  *
  * @since 4.2.0
@@ -29 +29 @@
 
     /**
-     * Render the themes section, which behaves like a panel.
+     * Theme section action.
      *
-     * @since 4.2.0
+     * Defines the type of themes to load (installed, featured, latest, etc.).
+     *
+     * @since 4.7.0
+     * @access public
+     * @var string
+     */
+    public $action = '';
+
+    /**
+     * Text before theme section heading.
+     *
+     * @since 4.7.0
+     * @access public
+     * @var string
+     */
+    public $text_before = '';
+
+    /**
+     * Get section parameters for JS.
+     *
+     * @since 4.7.0
+     * @access public
+     * @return array Exported parameters.
+     */
+    public function json() {
+        $exported = parent::json();
+        $exported['action'] = $this->action;
+        $exported['text_before'] = $this->text_before;
+
+        return $exported;
+    }
+
+    /**
+     * Render a themes section as a JS template.
+     *
+     * The template is only rendered by PHP once, so all actions are prepared at once on the server side.
+     *
+     * @since 4.7.0
      * @access protected
      */
-    protected function render() {
-        $classes = 'accordion-section control-section control-section-' . $this->type;
+    protected function render_template() {
         ?>
-        <li id="accordion-section-<?php echo esc_attr( $this->id ); ?>" class="<?php echo esc_attr( $classes ); ?>">
-            <h3 class="accordion-section-title">
-                <?php
-                if ( $this->manager->is_theme_active() ) {
-                    echo '<span class="customize-action">' . __( 'Active theme' ) . '</span> ' . $this->title;
+        <li id="accordion-section-{{ data.id }}" class="theme-section">
+            <# if ( '' !== data.text_before ) { #>
+                <p class="customize-themes-text-before">{{ data.text_before }}</p>
+            <# } #>
+            <# if ( 'search' === data.action ) { #>
+                <div class="search-form customize-themes-section-title themes-section-search_themes">
+                    <label class="screen-reader-text" for="wp-filter-search-input">{{ data.title }}</label>
+                    <input placeholder="{{ data.title }}" type="text" aria-describedby="live-search-desc" id="wp-filter-search-input" class="wp-filter-search">
+                    <span id="live-search-desc" class="screen-reader-text"><?php _e( 'The search results will be updated as you type.' ); ?></span>
+                </div>
+            <# } else { #>
+                <# if ( 'favorites' === data.action || 'feature_filter' === data.action ) {
+                    var attr = ' aria-expanded="false"';
                 } else {
-                    echo '<span class="customize-action">' . __( 'Previewing theme' ) . '</span> ' . $this->title;
-                }
-                ?>
-
-                <?php if ( count( $this->controls ) > 0 ) : ?>
-                    <button type="button" class="button change-theme" tabindex="0"><?php _ex( 'Change', 'theme' ); ?></button>
-                <?php endif; ?>
-            </h3>
-            <div class="customize-themes-panel control-panel-content themes-php">
-                <h3 class="accordion-section-title customize-section-title">
-                    <span class="customize-action"><?php _e( 'Customizing' ); ?></span>
-                    <?php _e( 'Themes' ); ?>
-                    <span class="title-count theme-count"><?php echo count( $this->controls ) + 1 /* Active theme */; ?></span>
-                </h3>
-                <h3 class="accordion-section-title customize-section-title">
+                    var attr = '';
+                } #>
+                <button type="button" class="customize-themes-section-title themes-section-{{ data.id }}"{{{ attr }}}>{{ data.title }}</button>
+            <# } #>
+            <?php if ( ! current_user_can( 'install_themes' ) || is_multisite() ) : ?>
+                <# if ( 'installed' === data.action ) { #>
+                    <p class="themes-filter-container">
+                        <label for="themes-filter">
+                            <span class="screen-reader-text"><?php _e( 'Search installed themes&hellip;' ); ?></span>
+                            <input type="text" id="themes-filter" placeholder="<?php esc_attr_e( 'Search installed themes&hellip;' ); ?>" />
+                        </label>
+                    </p>
+                <# } #>
+            <?php endif; ?>
+            <# if ( 'favorites' === data.action ) { #>
+                <div class="favorites-form filter-details">
+                    <p class="install-help"><?php _e( 'If you have marked themes as favorites on WordPress.org, you can browse them here.' ); ?></p>
+                    <p>
+                        <label for="wporg-username-input"><?php _e( 'Your WordPress.org username:' ); ?></label>
+                        <input type="search" id="wporg-username-input" value="">
+                        <button type="button" class="button button-secondary favorites-form-submit"><?php _e( 'Get Favorites' ); ?></button>
+                    </p>
+                </div>
+            <# } else if ( 'feature_filter' === data.action ) { #>
+                <div class="filter-drawer filter-details">
                     <?php
-                    if ( $this->manager->is_theme_active() ) {
-                        echo '<span class="customize-action">' . __( 'Active theme' ) . '</span> ' . $this->title;
-                    } else {
-                        echo '<span class="customize-action">' . __( 'Previewing theme' ) . '</span> ' . $this->title;
+                    $feature_list = get_theme_feature_list();
+                    foreach ( $feature_list as $feature_name => $features ) {
+                        echo '<fieldset class="filter-group">';
+                        $feature_name = esc_html( $feature_name );
+                        echo '<legend><button type="button" class="button-link" aria-expanded="false">' . $feature_name . '</button></legend>';
+                        echo '<div class="filter-group-feature">';
+                        foreach ( $features as $feature => $feature_name ) {
+                            $feature = esc_attr( $feature );
+                            echo '<input type="checkbox" id="filter-id-' . $feature . '" value="' . $feature . '" /> ';
+                            echo '<label for="filter-id-' . $feature . '">' . $feature_name . '</label><br>';
+                        }
+                        echo '</div>';
+                        echo '</fieldset>';
                     }
                     ?>
-                    <button type="button" class="button customize-theme"><?php _e( 'Customize' ); ?></button>
-                </h3>
-
+                </div>
+            <# } #>
+            <div class="customize-themes-section themes-section-{{ data.id }} control-section-content themes-php">
                 <div class="theme-overlay" tabindex="0" role="dialog" aria-label="<?php esc_attr_e( 'Theme Details' ); ?>"></div>
-
-                <div id="customize-container"></div>
-                <?php if ( count( $this->controls ) > 4 ) : ?>
-                    <p><label for="themes-filter">
-                        <span class="screen-reader-text"><?php _e( 'Search installed themes&hellip;' ); ?></span>
-                        <input type="text" id="themes-filter" placeholder="<?php esc_attr_e( 'Search installed themes&hellip;' ); ?>" />
-                    </label></p>
-                <?php endif; ?>
                 <div class="theme-browser rendered">
-                    <ul class="themes accordion-section-content">
+                    <div class="error unexpected-error" style="display: none; "><p><?php _e( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ); ?></p></div>
+                    <ul class="themes">
                     </ul>
+                    <p class="no-themes"><?php _e( 'No themes found. Try a different search.' ); ?></p>
+                    <p class="spinner"></p>
                 </div>
             </div>

trunk/tests/phpunit/tests/customize/manager.php

@@ -1487 +1487 @@
         $this->assertNotEmpty( $data );
 
-        $this->assertEqualSets( array( 'theme', 'url', 'browser', 'panels', 'sections', 'nonce', 'autofocus', 'documentTitleTmpl', 'previewableDevices', 'changeset', 'timeouts' ), array_keys( $data ) );
+        $this->assertEqualSets( array( 'theme', 'url', 'browser', 'panels', 'sections', 'nonce', 'autofocus', 'documentTitleTmpl', 'previewableDevices', 'changeset', 'timeouts', 'l10n' ), array_keys( $data ) );
         $this->assertEquals( $autofocus, $data['autofocus'] );
         $this->assertArrayHasKey( 'save', $data['nonce'] );