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<title>[25418] trunk/src/wp-content/themes/twentyfourteen/inc/customizer.php: Twenty Fourteen: let authors customize the green "accent" color by changing to a different hex value in the Customizer.</title>
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<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/25418">25418</a></dd>
<dt>Author</dt> <dd>lancewillett</dd>
<dt>Date</dt> <dd>2013-09-12 22:05:06 +0000 (Thu, 12 Sep 2013)</dd>
</dl>

<h3>Log Message</h3>
<pre>Twenty Fourteen: let authors customize the green "accent" color by changing to a different hex value in the Customizer. Props celloexpressions.

Also add an ID attribute to all `style` elements.

See <a href="http://core.trac.wordpress.org/ticket/25220">#25220</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpcontentthemestwentyfourteeninccustomizerphp">trunk/src/wp-content/themes/twentyfourteen/inc/customizer.php</a></li>
</ul>

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<h3>Diff</h3>
<a id="trunksrcwpcontentthemestwentyfourteeninccustomizerphp"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-content/themes/twentyfourteen/inc/customizer.php (25417 => 25418)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-content/themes/twentyfourteen/inc/customizer.php    2013-09-12 21:44:49 UTC (rev 25417)
+++ trunk/src/wp-content/themes/twentyfourteen/inc/customizer.php       2013-09-12 22:05:06 UTC (rev 25418)
</span><span class="lines">@@ -10,19 +10,206 @@
</span><span class="cx">  * Add postMessage support for site title and description for the Theme Customizer.
</span><span class="cx">  *
</span><span class="cx">  * @param WP_Customize_Manager $wp_customize Theme Customizer object.
</span><del>- *
</del><span class="cx">  */
</span><span class="cx"> function twentyfourteen_customize_register( $wp_customize ) {
</span><span class="cx">  $wp_customize->get_setting( 'blogname' )->transport        = 'postMessage';
</span><span class="cx">  $wp_customize->get_setting( 'blogdescription' )->transport = 'postMessage';
</span><ins>+
+       $wp_customize->add_setting( 'accent_color', array(
+               'default'           => '#24890d',
+               'sanitize_callback' => 'twentyfourteen_generate_accent_colors',
+       ) );
+
+       $wp_customize->add_control( new WP_Customize_Color_Control( $wp_customize, 'accent_color', array(
+               'label'    => __( 'Accent Color', 'twentyfourteen' ),
+               'section'  => 'colors',
+               'settings' => 'accent_color',
+       ) ) );
</ins><span class="cx"> }
</span><span class="cx"> add_action( 'customize_register', 'twentyfourteen_customize_register' );
</span><span class="cx"> 
</span><span class="cx"> /**
</span><span class="cx">  * Binds JS handlers to make Theme Customizer preview reload changes asynchronously.
</span><del>- *
</del><span class="cx">  */
</span><span class="cx"> function twentyfourteen_customize_preview_js() {
</span><span class="cx">  wp_enqueue_script( 'twentyfourteen_customizer', get_template_directory_uri() . '/js/customizer.js', array( 'customize-preview' ), '20120827', true );
</span><span class="cx"> }
</span><span class="cx"> add_action( 'customize_preview_init', 'twentyfourteen_customize_preview_js' );
</span><ins>+
+/**
+ * Generates two variants of the accent color, returns the original, and saves the others as theme mods.
+ *
+ * @param string $color The original color.
+ * @return string $color The original color, sanitized.
+ */
+function twentyfourteen_generate_accent_colors( $color ) {
+       $color = sanitize_hex_color( $color );
+
+       set_theme_mod( 'accent_lighter', twentyfourteen_adjust_color( $color, 14 ) );
+       set_theme_mod( 'accent_much_lighter', twentyfourteen_adjust_color( $color, 71 ) );
+
+       return $color;
+}
+
+/**
+ * Tweaks the brightness of a color by adjusting the RGB values by the given interval.
+ *
+ * Use positive values of $steps to brighten the color and negative values to darken the color.
+ * All three RGB values are modified by the specified steps, within the range of 0-255. The hue
+ * is generally maintained unless the number of steps causes one value to be capped at 0 or 255.
+ *
+ * @param string $color The original color, in 3- or 6-digit hexadecimal form.
+ * @param int $steps The number of steps to adjust the color by, in rgb units.
+ * @return string $color The new color, in 6-digit hexadecimal form.
+ */
+function twentyfourteen_adjust_color( $color, $steps ) {
+       // Convert shorthand to full hex.
+       if ( strlen( $color ) == 3 ) {
+               $color = str_repeat( substr( $color, 1, 1 ), 2 ) . str_repeat( substr( $color, 2, 1 ), 2 ) . str_repeat( substr( $color, 3, 1), 2 );
+       }
+
+       // Convert hex to rgb.
+       $rgb = array( hexdec( substr( $color, 1, 2 ) ), hexdec( substr( $color, 3, 2 ) ), hexdec( substr( $color, 5, 2 ) ) );
+
+       // Adjust color and switch back to hex.
+       $hex = '#';
+       foreach ( $rgb as $c ) {
+               $c += $steps;
+               if ( $c > 255 )
+                       $c = 255;
+               elseif ( $c < 0 )
+                       $c = 0;
+               $hex .= str_pad( dechex( $c ), 2, '0', STR_PAD_LEFT);
+       }
+
+       return $hex;
+}
+
+/**
+ * Outputs the css for the Theme Customizer options.
+ */
+function twentyfourteen_customizer_styles() {
+       $accent_color = get_theme_mod( 'accent_color' );
+
+       // Don't do anything if the current color is the default.
+       if ( '#24890d' === $accent_color )
+               return;
+
+       $accent_lighter = get_theme_mod( 'accent_lighter' );
+       $accent_much_lighter = get_theme_mod( 'accent_much_lighter' );
+
+       $css = '<style type="text/css" id="twentyfourteen-accent-color">
+               /* Custom accent color. */
+               h1 a:hover,
+               h2 a:hover,
+               h3 a:hover,
+               h4 a:hover,
+               h5 a:hover,
+               h6 a:hover,
+               a,
+               .primary-navigation ul ul a:hover,
+               .entry-title a:hover,
+               .cat-links a:hover,
+               .site-content .post-navigation a:hover,
+               .site-content .image-navigation a:hover,
+               .comment-author a:hover,
+               .comment-metadata a:hover,
+               .comment-list .trackback a:hover,
+               .comment-list .pingback a:hover,
+               .content-sidebar a:hover,
+               .paging-navigation .page-numbers.current {
+                       color: ' . $accent_color . ';
+               }
+
+               button:hover,
+               html input[type="button"]:hover,
+               input[type="reset"]:hover,
+               input[type="submit"]:hover,
+               button:focus,
+               html input[type="button"]:focus,
+               input[type="reset"]:focus,
+               input[type="submit"]:focus,
+               .header-extra,
+               .search-toggle,
+               .bypostauthor .avatar,
+               .widget-area button,
+               .widget-area html input[type="button"],
+               .widget-area input[type="reset"],
+               .widget-area input[type="submit"],
+               .widget_calendar a,
+               .content-sidebar button:hover,
+               .content-sidebar html input[type="button"]:hover,
+               .content-sidebar input[type="reset"]:hover,
+               .content-sidebar input[type="submit"]:hover,
+               .content-sidebar button:focus,
+               .content-sidebar html input[type="button"]:focus,
+               .content-sidebar input[type="reset"]:focus,
+               .content-sidebar input[type="submit"]:focus,
+               .page-links a:hover {
+                       background-color: ' . $accent_color . ';
+               }
+
+               ::-moz-selection {
+                       background: ' . $accent_color . ';
+               }
+
+               ::selection {
+                       background: ' . $accent_color . ';
+               }
+
+               .page-links a:hover,
+               .paging-navigation .page-numbers.current {
+                       border-color: ' .  $accent_color . ';
+               }
+
+               /* Generated variant of custom accent color: slightly lighter. */
+               .search-toggle:hover,
+               .search-toggle.active,
+               .search-box,
+               .widget-area button:hover,
+               .widget-area html input[type="button"]:hover,
+               .widget-area input[type="reset"]:hover,
+               .widget-area input[type="submit"]:hover,
+               .widget-area button:focus,
+               .widget-area html input[type="button"]:focus,
+               .widget-area input[type="reset"]:focus,
+               .widget-area input[type="submit"]:focus,
+               .widget-area button:active,
+               .widget-area html input[type="button"]:active,
+               .widget-area input[type="reset"]:active,
+               .widget-area input[type="submit"]:active,
+               .widget_calendar a:hover {
+                       background-color: ' . $accent_lighter . ';
+               }
+
+               /* Generated variant of custom accent color: much lighter. */
+               button:active,
+               html input[type="button"]:active,
+               input[type="reset"]:active,
+               input[type="submit"]:active,
+               .content-sidebar button:active,
+               .content-sidebar html input[type="button"]:active,
+               .content-sidebar input[type="reset"]:active,
+               .content-sidebar input[type="submit"]:active {
+                       background-color: ' . $accent_much_lighter . ';
+               }
+
+               a:hover,
+               a:focus,
+               a:active,
+               .primary-navigation li.current_page_item > a,
+               .primary-navigation li.current-menu-item > a,
+               .secondary-navigation a:hover,
+               #secondary .current_page_item > a,
+               #secondary .current-menu-item > a,
+               #featured-content .entry-meta a:hover,
+               #featured-content .entry-title a:hover,
+               #featured-content .more-link,
+               .widget-area a:hover {
+                       color: ' . $accent_much_lighter . ';
+               }
+               </style>';
+
+       wp_add_inline_style( 'twentyfourteen-style', $css );
+}
+add_action( 'wp_enqueue_scripts', 'twentyfourteen_customizer_styles' );
</ins><span class="cx">\ No newline at end of file
</span></span></pre>
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