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1 <?php |
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2 /** |
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3 * Server-side rendering of the `core/navigation-submenu` block. |
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4 * |
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5 * @package WordPress |
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6 */ |
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7 |
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8 /** |
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9 * Build an array with CSS classes and inline styles defining the colors |
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10 * which will be applied to the navigation markup in the front-end. |
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11 * |
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12 * @param array $context Navigation block context. |
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13 * @param array $attributes Block attributes. |
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14 * @return array Colors CSS classes and inline styles. |
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15 */ |
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16 function block_core_navigation_submenu_build_css_colors( $context, $attributes ) { |
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17 $colors = array( |
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18 'css_classes' => array(), |
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19 'inline_styles' => '', |
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20 ); |
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21 |
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22 $is_sub_menu = isset( $attributes['isTopLevelItem'] ) ? ( ! $attributes['isTopLevelItem'] ) : false; |
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23 |
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24 // Text color. |
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25 $named_text_color = null; |
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26 $custom_text_color = null; |
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27 |
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28 if ( $is_sub_menu && array_key_exists( 'customOverlayTextColor', $context ) ) { |
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29 $custom_text_color = $context['customOverlayTextColor']; |
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30 } elseif ( $is_sub_menu && array_key_exists( 'overlayTextColor', $context ) ) { |
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31 $named_text_color = $context['overlayTextColor']; |
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32 } elseif ( array_key_exists( 'customTextColor', $context ) ) { |
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33 $custom_text_color = $context['customTextColor']; |
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34 } elseif ( array_key_exists( 'textColor', $context ) ) { |
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35 $named_text_color = $context['textColor']; |
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36 } elseif ( isset( $context['style']['color']['text'] ) ) { |
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37 $custom_text_color = $context['style']['color']['text']; |
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38 } |
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39 |
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40 // If has text color. |
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41 if ( ! is_null( $named_text_color ) ) { |
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42 // Add the color class. |
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43 array_push( $colors['css_classes'], 'has-text-color', sprintf( 'has-%s-color', $named_text_color ) ); |
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44 } elseif ( ! is_null( $custom_text_color ) ) { |
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45 // Add the custom color inline style. |
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46 $colors['css_classes'][] = 'has-text-color'; |
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47 $colors['inline_styles'] .= sprintf( 'color: %s;', $custom_text_color ); |
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48 } |
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49 |
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50 // Background color. |
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51 $named_background_color = null; |
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52 $custom_background_color = null; |
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53 |
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54 if ( $is_sub_menu && array_key_exists( 'customOverlayBackgroundColor', $context ) ) { |
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55 $custom_background_color = $context['customOverlayBackgroundColor']; |
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56 } elseif ( $is_sub_menu && array_key_exists( 'overlayBackgroundColor', $context ) ) { |
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57 $named_background_color = $context['overlayBackgroundColor']; |
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58 } elseif ( array_key_exists( 'customBackgroundColor', $context ) ) { |
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59 $custom_background_color = $context['customBackgroundColor']; |
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60 } elseif ( array_key_exists( 'backgroundColor', $context ) ) { |
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61 $named_background_color = $context['backgroundColor']; |
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62 } elseif ( isset( $context['style']['color']['background'] ) ) { |
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63 $custom_background_color = $context['style']['color']['background']; |
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64 } |
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65 |
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66 // If has background color. |
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67 if ( ! is_null( $named_background_color ) ) { |
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68 // Add the background-color class. |
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69 array_push( $colors['css_classes'], 'has-background', sprintf( 'has-%s-background-color', $named_background_color ) ); |
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70 } elseif ( ! is_null( $custom_background_color ) ) { |
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71 // Add the custom background-color inline style. |
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72 $colors['css_classes'][] = 'has-background'; |
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73 $colors['inline_styles'] .= sprintf( 'background-color: %s;', $custom_background_color ); |
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74 } |
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75 |
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76 return $colors; |
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77 } |
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78 |
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79 /** |
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80 * Build an array with CSS classes and inline styles defining the font sizes |
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81 * which will be applied to the navigation markup in the front-end. |
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82 * |
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83 * @param array $context Navigation block context. |
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84 * @return array Font size CSS classes and inline styles. |
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85 */ |
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86 function block_core_navigation_submenu_build_css_font_sizes( $context ) { |
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87 // CSS classes. |
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88 $font_sizes = array( |
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89 'css_classes' => array(), |
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90 'inline_styles' => '', |
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91 ); |
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92 |
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93 $has_named_font_size = array_key_exists( 'fontSize', $context ); |
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94 $has_custom_font_size = isset( $context['style']['typography']['fontSize'] ); |
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95 |
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96 if ( $has_named_font_size ) { |
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97 // Add the font size class. |
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98 $font_sizes['css_classes'][] = sprintf( 'has-%s-font-size', $context['fontSize'] ); |
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99 } elseif ( $has_custom_font_size ) { |
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100 // Add the custom font size inline style. |
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101 $font_sizes['inline_styles'] = sprintf( 'font-size: %s;', $context['style']['typography']['fontSize'] ); |
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102 } |
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103 |
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104 return $font_sizes; |
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105 } |
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106 |
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107 /** |
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108 * Returns the top-level submenu SVG chevron icon. |
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109 * |
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110 * @return string |
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111 */ |
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112 function block_core_navigation_submenu_render_submenu_icon() { |
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113 return '<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 12 12" fill="none" aria-hidden="true" focusable="false"><path d="M1.50002 4L6.00002 8L10.5 4" stroke-width="1.5"></path></svg>'; |
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114 } |
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115 |
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116 /** |
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117 * Renders the `core/navigation-submenu` block. |
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118 * |
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119 * @param array $attributes The block attributes. |
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120 * @param string $content The saved content. |
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121 * @param WP_Block $block The parsed block. |
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122 * |
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123 * @return string Returns the post content with the legacy widget added. |
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124 */ |
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125 function render_block_core_navigation_submenu( $attributes, $content, $block ) { |
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126 |
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127 $navigation_link_has_id = isset( $attributes['id'] ) && is_numeric( $attributes['id'] ); |
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128 $is_post_type = isset( $attributes['kind'] ) && 'post-type' === $attributes['kind']; |
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129 $is_post_type = $is_post_type || isset( $attributes['type'] ) && ( 'post' === $attributes['type'] || 'page' === $attributes['type'] ); |
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130 |
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131 // Don't render the block's subtree if it is a draft. |
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132 if ( $is_post_type && $navigation_link_has_id && 'publish' !== get_post_status( $attributes['id'] ) ) { |
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133 return ''; |
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134 } |
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135 |
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136 // Don't render the block's subtree if it has no label. |
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137 if ( empty( $attributes['label'] ) ) { |
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138 return ''; |
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139 } |
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140 |
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141 $colors = block_core_navigation_submenu_build_css_colors( $block->context, $attributes ); |
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142 $font_sizes = block_core_navigation_submenu_build_css_font_sizes( $block->context ); |
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143 $classes = array_merge( |
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144 $colors['css_classes'], |
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145 $font_sizes['css_classes'] |
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146 ); |
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147 $style_attribute = ( $colors['inline_styles'] . $font_sizes['inline_styles'] ); |
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148 |
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149 $css_classes = trim( implode( ' ', $classes ) ); |
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150 $has_submenu = count( $block->inner_blocks ) > 0; |
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151 $is_active = ! empty( $attributes['id'] ) && ( get_the_ID() === $attributes['id'] ); |
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152 |
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153 $show_submenu_indicators = isset( $block->context['showSubmenuIcon'] ) && $block->context['showSubmenuIcon']; |
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154 $open_on_click = isset( $block->context['openSubmenusOnClick'] ) && $block->context['openSubmenusOnClick']; |
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155 $open_on_hover_and_click = isset( $block->context['openSubmenusOnClick'] ) && ! $block->context['openSubmenusOnClick'] && |
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156 $show_submenu_indicators; |
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157 |
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158 $wrapper_attributes = get_block_wrapper_attributes( |
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159 array( |
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160 'class' => $css_classes . ' wp-block-navigation-item' . ( $has_submenu ? ' has-child' : '' ) . |
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161 ( $open_on_click ? ' open-on-click' : '' ) . ( $open_on_hover_and_click ? ' open-on-hover-click' : '' ) . |
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162 ( $is_active ? ' current-menu-item' : '' ), |
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163 'style' => $style_attribute, |
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164 ) |
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165 ); |
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166 |
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167 $label = ''; |
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168 |
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169 if ( isset( $attributes['label'] ) ) { |
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170 $label .= wp_kses_post( $attributes['label'] ); |
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171 } |
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172 |
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173 $aria_label = sprintf( |
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174 /* translators: Accessibility text. %s: Parent page title. */ |
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175 __( '%s submenu' ), |
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176 wp_strip_all_tags( $label ) |
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177 ); |
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178 |
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179 $html = '<li ' . $wrapper_attributes . '>'; |
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180 |
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181 // If Submenus open on hover, we render an anchor tag with attributes. |
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182 // If submenu icons are set to show, we also render a submenu button, so the submenu can be opened on click. |
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183 if ( ! $open_on_click ) { |
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184 $item_url = isset( $attributes['url'] ) ? $attributes['url'] : ''; |
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185 // Start appending HTML attributes to anchor tag. |
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186 $html .= '<a class="wp-block-navigation-item__content" href="' . esc_url( $item_url ) . '"'; |
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187 |
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188 if ( $is_active ) { |
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189 $html .= ' aria-current="page"'; |
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190 } |
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191 |
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192 if ( isset( $attributes['opensInNewTab'] ) && true === $attributes['opensInNewTab'] ) { |
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193 $html .= ' target="_blank" '; |
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194 } |
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195 |
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196 if ( isset( $attributes['rel'] ) ) { |
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197 $html .= ' rel="' . esc_attr( $attributes['rel'] ) . '"'; |
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198 } elseif ( isset( $attributes['nofollow'] ) && $attributes['nofollow'] ) { |
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199 $html .= ' rel="nofollow"'; |
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200 } |
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201 |
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202 if ( isset( $attributes['title'] ) ) { |
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203 $html .= ' title="' . esc_attr( $attributes['title'] ) . '"'; |
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204 } |
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205 |
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206 $html .= '>'; |
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207 // End appending HTML attributes to anchor tag. |
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208 |
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209 $html .= $label; |
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210 |
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211 $html .= '</a>'; |
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212 // End anchor tag content. |
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213 |
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214 if ( $show_submenu_indicators ) { |
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215 // The submenu icon is rendered in a button here |
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216 // so that there's a clickable element to open the submenu. |
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217 $html .= '<button aria-label="' . esc_attr( $aria_label ) . '" class="wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle" aria-expanded="false">' . block_core_navigation_submenu_render_submenu_icon() . '</button>'; |
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218 } |
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219 } else { |
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220 // If menus open on click, we render the parent as a button. |
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221 $html .= '<button aria-label="' . esc_attr( $aria_label ) . '" class="wp-block-navigation-item__content wp-block-navigation-submenu__toggle" aria-expanded="false">'; |
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222 |
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223 // Wrap title with span to isolate it from submenu icon. |
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224 $html .= '<span class="wp-block-navigation-item__label">'; |
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225 |
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226 $html .= $label; |
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227 |
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228 $html .= '</span>'; |
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229 |
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230 $html .= '</button>'; |
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231 |
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232 $html .= '<span class="wp-block-navigation__submenu-icon">' . block_core_navigation_submenu_render_submenu_icon() . '</span>'; |
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233 |
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234 } |
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235 |
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236 if ( $has_submenu ) { |
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237 $inner_blocks_html = ''; |
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238 foreach ( $block->inner_blocks as $inner_block ) { |
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239 $inner_blocks_html .= $inner_block->render(); |
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240 } |
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241 |
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242 $html .= sprintf( |
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243 '<ul class="wp-block-navigation__submenu-container">%s</ul>', |
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244 $inner_blocks_html |
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245 ); |
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246 } |
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247 |
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248 $html .= '</li>'; |
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249 |
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250 return $html; |
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251 } |
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252 |
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253 /** |
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254 * Register the navigation submenu block. |
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255 * |
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256 * @uses render_block_core_navigation_submenu() |
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257 * @throws WP_Error An WP_Error exception parsing the block definition. |
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258 */ |
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259 function register_block_core_navigation_submenu() { |
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260 register_block_type_from_metadata( |
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261 __DIR__ . '/navigation-submenu', |
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262 array( |
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263 'render_callback' => 'render_block_core_navigation_submenu', |
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264 ) |
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265 ); |
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266 } |
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267 add_action( 'init', 'register_block_core_navigation_submenu' ); |