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<title>[55146] trunk: Themes: Avoid unnecessary database queries from `get_default_block_editor_settings()` in `WP_Theme_JSON_Resolver::get_theme_data()`.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/55146">55146</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/55146","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>flixos90</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2023-01-26 18:37:47 +0000 (Thu, 26 Jan 2023)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Themes: Avoid unnecessary database queries from `get_default_block_editor_settings()` in `WP_Theme_JSON_Resolver::get_theme_data()`.

The `get_default_block_editor_settings()` function included several pieces of data that are irrelevant for the purpose that `WP_Theme_JSON_Resolver` was calling it for, yet resulted in three database queries on page load that can be avoided.

This changeset introduces a new function `get_classic_theme_supports_block_editor_settings()` to takes responsibility of only the data needed in `WP_Theme_JSON_Resolver`, which now uses that function. This leads to a reduction of database queries and accordingly a performance improvement.

Props mamaduka, spacedmonkey, oandregal, flixos90, audrasjb, mukesh27.
Fixes <a href="https://core.trac.wordpress.org/ticket/57547">#57547</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesblockeditorphp">trunk/src/wp-includes/block-editor.php</a></li>
<li><a href="#trunksrcwpincludesclasswpthemejsonresolverphp">trunk/src/wp-includes/class-wp-theme-json-resolver.php</a></li>
<li><a href="#trunktestsphpunittestsblockseditorphp">trunk/tests/phpunit/tests/blocks/editor.php</a></li>
<li><a href="#trunktestsphpunitteststhemewpThemeJsonphp">trunk/tests/phpunit/tests/theme/wpThemeJson.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludesblockeditorphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/block-editor.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/block-editor.php    2023-01-26 18:10:54 UTC (rev 55145)
+++ trunk/src/wp-includes/block-editor.php      2023-01-26 18:37:47 UTC (rev 55146)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -216,13 +216,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">                'allowedMimeTypes'                 => get_allowed_mime_types(),
</span><span class="cx" style="display: block; padding: 0 10px">                'defaultEditorStyles'              => $default_editor_styles,
</span><span class="cx" style="display: block; padding: 0 10px">                'blockCategories'                  => get_default_block_categories(),
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                'disableCustomColors'              => get_theme_support( 'disable-custom-colors' ),
-               'disableCustomFontSizes'           => get_theme_support( 'disable-custom-font-sizes' ),
-               'disableCustomGradients'           => get_theme_support( 'disable-custom-gradients' ),
-               'disableLayoutStyles'              => get_theme_support( 'disable-layout-styles' ),
-               'enableCustomLineHeight'           => get_theme_support( 'custom-line-height' ),
-               'enableCustomSpacing'              => get_theme_support( 'custom-spacing' ),
-               'enableCustomUnits'                => get_theme_support( 'custom-units' ),
</del><span class="cx" style="display: block; padding: 0 10px">                 'isRTL'                            => is_rtl(),
</span><span class="cx" style="display: block; padding: 0 10px">                'imageDefaultSize'                 => $image_default_size,
</span><span class="cx" style="display: block; padding: 0 10px">                'imageDimensions'                  => $image_dimensions,
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -233,22 +226,11 @@
</span><span class="cx" style="display: block; padding: 0 10px">                '__unstableGalleryWithImageBlocks' => true,
</span><span class="cx" style="display: block; padding: 0 10px">        );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        // Theme settings.
-       $color_palette = current( (array) get_theme_support( 'editor-color-palette' ) );
-       if ( false !== $color_palette ) {
-               $editor_settings['colors'] = $color_palette;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $theme_settings = get_classic_theme_supports_block_editor_settings();
+       foreach ( $theme_settings as $key => $value ) {
+               $editor_settings[ $key ] = $value;
</ins><span class="cx" style="display: block; padding: 0 10px">         }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        $font_sizes = current( (array) get_theme_support( 'editor-font-sizes' ) );
-       if ( false !== $font_sizes ) {
-               $editor_settings['fontSizes'] = $font_sizes;
-       }
-
-       $gradient_presets = current( (array) get_theme_support( 'editor-gradient-presets' ) );
-       if ( false !== $gradient_presets ) {
-               $editor_settings['gradients'] = $gradient_presets;
-       }
-
</del><span class="cx" style="display: block; padding: 0 10px">         return $editor_settings;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -694,3 +676,40 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        return $styles;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+/**
+ * Returns the classic theme supports settings for block editor.
+ *
+ * @since 6.2.0
+ *
+ * @return array The classic theme supports settings.
+ */
+function get_classic_theme_supports_block_editor_settings() {
+       $theme_settings = array(
+               'disableCustomColors'    => get_theme_support( 'disable-custom-colors' ),
+               'disableCustomFontSizes' => get_theme_support( 'disable-custom-font-sizes' ),
+               'disableCustomGradients' => get_theme_support( 'disable-custom-gradients' ),
+               'disableLayoutStyles'    => get_theme_support( 'disable-layout-styles' ),
+               'enableCustomLineHeight' => get_theme_support( 'custom-line-height' ),
+               'enableCustomSpacing'    => get_theme_support( 'custom-spacing' ),
+               'enableCustomUnits'      => get_theme_support( 'custom-units' ),
+       );
+
+       // Theme settings.
+       $color_palette = current( (array) get_theme_support( 'editor-color-palette' ) );
+       if ( false !== $color_palette ) {
+               $theme_settings['colors'] = $color_palette;
+       }
+
+       $font_sizes = current( (array) get_theme_support( 'editor-font-sizes' ) );
+       if ( false !== $font_sizes ) {
+               $theme_settings['fontSizes'] = $font_sizes;
+       }
+
+       $gradient_presets = current( (array) get_theme_support( 'editor-gradient-presets' ) );
+       if ( false !== $gradient_presets ) {
+               $theme_settings['gradients'] = $gradient_presets;
+       }
+
+       return $theme_settings;
+}
</ins></span></pre></div>
<a id="trunksrcwpincludesclasswpthemejsonresolverphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/class-wp-theme-json-resolver.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wp-theme-json-resolver.php    2023-01-26 18:10:54 UTC (rev 55145)
+++ trunk/src/wp-includes/class-wp-theme-json-resolver.php      2023-01-26 18:37:47 UTC (rev 55146)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -286,7 +286,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                 * So we take theme supports, transform it to theme.json shape
</span><span class="cx" style="display: block; padding: 0 10px">                 * and merge the static::$theme upon that.
</span><span class="cx" style="display: block; padding: 0 10px">                 */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $theme_support_data = WP_Theme_JSON::get_from_editor_settings( get_default_block_editor_settings() );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         $theme_support_data = WP_Theme_JSON::get_from_editor_settings( get_classic_theme_supports_block_editor_settings() );
</ins><span class="cx" style="display: block; padding: 0 10px">                 if ( ! wp_theme_has_theme_json() ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        if ( ! isset( $theme_support_data['settings']['color'] ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                                $theme_support_data['settings']['color'] = array();
</span></span></pre></div>
<a id="trunktestsphpunittestsblockseditorphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/blocks/editor.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/blocks/editor.php       2023-01-26 18:10:54 UTC (rev 55145)
+++ trunk/tests/phpunit/tests/blocks/editor.php 2023-01-26 18:37:47 UTC (rev 55146)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -569,6 +569,44 @@
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         * @ticket 57547
+        *
+        * @covers ::get_classic_theme_supports_block_editor_settings
+        */
+       public function test_get_classic_theme_supports_block_editor_settings() {
+               $font_sizes = array(
+                       array(
+                               'name' => 'Small',
+                               'size' => 12,
+                               'slug' => 'small',
+                       ),
+                       array(
+                               'name' => 'Regular',
+                               'size' => 16,
+                               'slug' => 'regular',
+                       ),
+               );
+
+               add_theme_support( 'editor-font-sizes', $font_sizes );
+               $settings = get_classic_theme_supports_block_editor_settings();
+               remove_theme_support( 'editor-font-sizes' );
+
+               $this->assertFalse( $settings['disableCustomColors'], 'Value for array key "disableCustomColors" does not match expectations' );
+               $this->assertFalse( $settings['disableCustomFontSizes'], 'Value for array key "disableCustomFontSizes" does not match expectations' );
+               $this->assertFalse( $settings['disableCustomGradients'], 'Value for array key "disableCustomGradients" does not match expectations' );
+               $this->assertFalse( $settings['disableLayoutStyles'], 'Value for array key "disableLayoutStyles" does not match expectations' );
+               $this->assertFalse( $settings['enableCustomLineHeight'], 'Value for array key "enableCustomLineHeight" does not match expectations' );
+               $this->assertFalse( $settings['enableCustomSpacing'], 'Value for array key "enableCustomSpacing" does not match expectations' );
+               $this->assertFalse( $settings['enableCustomUnits'], 'Value for array key "enableCustomUnits" does not match expectations' );
+
+               $this->assertSame(
+                       $font_sizes,
+                       $settings['fontSizes'],
+                       'Value for array key "fontSizes" does not match expectations'
+               );
+       }
+
+       /**
</ins><span class="cx" style="display: block; padding: 0 10px">          * Data provider.
</span><span class="cx" style="display: block; padding: 0 10px">         *
</span><span class="cx" style="display: block; padding: 0 10px">         * @return array
</span></span></pre></div>
<a id="trunktestsphpunitteststhemewpThemeJsonphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/theme/wpThemeJson.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/theme/wpThemeJson.php   2023-01-26 18:10:54 UTC (rev 55145)
+++ trunk/tests/phpunit/tests/theme/wpThemeJson.php     2023-01-26 18:37:47 UTC (rev 55146)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2645,7 +2645,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">         */
</span><span class="cx" style="display: block; padding: 0 10px">        public function test_get_editor_settings_custom_units_can_be_disabled() {
</span><span class="cx" style="display: block; padding: 0 10px">                add_theme_support( 'custom-units', array() );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $actual = WP_Theme_JSON::get_from_editor_settings( get_default_block_editor_settings() );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         $actual = WP_Theme_JSON::get_from_editor_settings( get_classic_theme_supports_block_editor_settings() );
</ins><span class="cx" style="display: block; padding: 0 10px">                 remove_theme_support( 'custom-units' );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                $expected = array(
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2662,7 +2662,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">         */
</span><span class="cx" style="display: block; padding: 0 10px">        public function test_get_editor_settings_custom_units_can_be_enabled() {
</span><span class="cx" style="display: block; padding: 0 10px">                add_theme_support( 'custom-units' );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $actual = WP_Theme_JSON::get_from_editor_settings( get_default_block_editor_settings() );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         $actual = WP_Theme_JSON::get_from_editor_settings( get_classic_theme_supports_block_editor_settings() );
</ins><span class="cx" style="display: block; padding: 0 10px">                 remove_theme_support( 'custom-units' );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                $expected = array(
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2679,7 +2679,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">         */
</span><span class="cx" style="display: block; padding: 0 10px">        public function test_get_editor_settings_custom_units_can_be_filtered() {
</span><span class="cx" style="display: block; padding: 0 10px">                add_theme_support( 'custom-units', 'rem', 'em' );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $actual = WP_Theme_JSON::get_from_editor_settings( get_default_block_editor_settings() );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         $actual = WP_Theme_JSON::get_from_editor_settings( get_classic_theme_supports_block_editor_settings() );
</ins><span class="cx" style="display: block; padding: 0 10px">                 remove_theme_support( 'custom-units' );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                $expected = array(
</span></span></pre>
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