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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | */ |
| 18 | |
| 19 | namespace MediaWiki\Skin; |
| 20 | |
| 21 | use MediaWiki\Html\Html; |
| 22 | use MediaWiki\Linker\Linker; |
| 23 | use MediaWiki\Message\Message; |
| 24 | use MessageLocalizer; |
| 25 | |
| 26 | /** |
| 27 | * @internal for use inside Skin and SkinTemplate classes only |
| 28 | * @unstable |
| 29 | */ |
| 30 | class SkinComponentLink implements SkinComponent { |
| 31 | /** @var string */ |
| 32 | private $key; |
| 33 | /** @var array */ |
| 34 | private $item; |
| 35 | /** @var array */ |
| 36 | private $options; |
| 37 | /** @var MessageLocalizer */ |
| 38 | private $localizer; |
| 39 | |
| 40 | /** |
| 41 | * @param string $key |
| 42 | * @param array $item |
| 43 | * @param MessageLocalizer $localizer |
| 44 | * @param array $options |
| 45 | */ |
| 46 | public function __construct( string $key, array $item, MessageLocalizer $localizer, array $options = [] ) { |
| 47 | $this->key = $key; |
| 48 | $this->item = $item; |
| 49 | $this->localizer = $localizer; |
| 50 | $this->options = $options; |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * @param string $key |
| 55 | * @return Message |
| 56 | */ |
| 57 | private function msg( string $key ): Message { |
| 58 | return $this->localizer->msg( $key ); |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Makes a link, usually used by makeListItem to generate a link for an item |
| 63 | * in a list used in navigation lists, portlets, portals, sidebars, etc... |
| 64 | * |
| 65 | * @param string $key Usually a key from the list you are generating this |
| 66 | * link from. |
| 67 | * @param array $item Contains some of a specific set of keys. |
| 68 | * |
| 69 | * The text of the link will be generated either from the contents of the |
| 70 | * "text" key in the $item array, if a "msg" key is present a message by |
| 71 | * that name will be used, and if neither of those are set the $key will be |
| 72 | * used as a message name. |
| 73 | * |
| 74 | * If a "href" key is not present makeLink will just output htmlescaped text. |
| 75 | * The "href", "id", "class", "rel", and "type" keys are used as attributes |
| 76 | * for the link if present. |
| 77 | * |
| 78 | * If an "id" or "single-id" (if you don't want the actual id to be output |
| 79 | * on the link) is present it will be used to generate a tooltip and |
| 80 | * accesskey for the link. |
| 81 | * |
| 82 | * The 'link-html' key can be used to prepend additional HTML inside the link HTML. |
| 83 | * For example to prepend an icon. |
| 84 | * |
| 85 | * The keys "context" and "primary" are ignored; these keys are used |
| 86 | * internally by skins and are not supposed to be included in the HTML |
| 87 | * output. |
| 88 | * |
| 89 | * If you don't want an accesskey, set $item['tooltiponly'] = true; |
| 90 | * |
| 91 | * If a "data" key is present, it must be an array, where the keys represent |
| 92 | * the data-xxx properties with their provided values. For example, |
| 93 | * $item['data'] = [ |
| 94 | * 'foo' => 1, |
| 95 | * 'bar' => 'baz', |
| 96 | * ]; |
| 97 | * will render as element properties: |
| 98 | * data-foo='1' data-bar='baz' |
| 99 | * |
| 100 | * The "class" key currently accepts both a string and an array of classes, but this will be |
| 101 | * changed to only accept an array in the future. |
| 102 | * |
| 103 | * @param array $options Can be used to affect the output of a link. |
| 104 | * Possible options are: |
| 105 | * - 'class-as-property' key to specify that class attribute should be |
| 106 | * not be included in array-attributes. |
| 107 | * - 'text-wrapper' key to specify a list of elements to wrap the text of |
| 108 | * a link in. This should be an array of arrays containing a 'tag' and |
| 109 | * optionally an 'attributes' key. If you only have one element you don't |
| 110 | * need to wrap it in another array. eg: To use <a><span>...</span></a> |
| 111 | * in all links use [ 'text-wrapper' => [ 'tag' => 'span' ] ] |
| 112 | * for your options. |
| 113 | * - 'link-class' key can be used to specify additional classes to apply |
| 114 | * to all links. |
| 115 | * - 'link-fallback' can be used to specify a tag to use instead of "<a>" |
| 116 | * if there is no link. eg: If you specify 'link-fallback' => 'span' than |
| 117 | * any non-link will output a "<span>" instead of just text. |
| 118 | * |
| 119 | * @return array Associated array with the following keys: |
| 120 | * - html: HTML string |
| 121 | * - array-attributes: HTML attributes as array of objects: |
| 122 | * - key: Attribute name ex: 'href', 'class', 'id', ... |
| 123 | * - value: Attribute value |
| 124 | * NOTE: if options['class-as-property'] is set, class will not be included in the list. |
| 125 | * - text: Text of the link |
| 126 | * - class: Class of the link |
| 127 | */ |
| 128 | private function makeLink( $key, $item, $options = [] ) { |
| 129 | $html = $item['html'] ?? null; |
| 130 | $icon = $item['icon'] ?? null; |
| 131 | if ( $html ) { |
| 132 | return [ |
| 133 | 'html' => $html |
| 134 | ]; |
| 135 | } |
| 136 | $text = $item['text'] ?? $this->msg( $item['msg'] ?? $key )->text(); |
| 137 | |
| 138 | $html = htmlspecialchars( $text ); |
| 139 | $isLink = isset( $item['href'] ) || isset( $options['link-fallback'] ); |
| 140 | |
| 141 | if ( $html !== '' && isset( $options['text-wrapper'] ) ) { |
| 142 | $wrapper = $options['text-wrapper']; |
| 143 | if ( isset( $wrapper['tag'] ) ) { |
| 144 | $wrapper = [ $wrapper ]; |
| 145 | } |
| 146 | while ( count( $wrapper ) > 0 ) { |
| 147 | $element = array_pop( $wrapper ); |
| 148 | '@phan-var array $element'; |
| 149 | |
| 150 | $attrs = $element['attributes'] ?? []; |
| 151 | // Apply title attribute to the outermost wrapper if there is |
| 152 | // no link wrapper. No need for an accesskey. |
| 153 | if ( count( $wrapper ) === 0 && !$isLink ) { |
| 154 | $this->applyLinkTitleAttribs( |
| 155 | $item, |
| 156 | false, |
| 157 | $attrs |
| 158 | ); |
| 159 | } |
| 160 | $html = Html::rawElement( $element['tag'], $attrs, $html ); |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | $attrs = []; |
| 165 | $linkHtmlAttributes = []; |
| 166 | $classAsProperty = $options['class-as-property'] ?? false; |
| 167 | if ( $isLink ) { |
| 168 | $attrs = $item; |
| 169 | foreach ( [ |
| 170 | 'single-id', 'text', 'msg', 'tooltiponly', 'context', 'primary', |
| 171 | // These fields provide context for skins to modify classes. |
| 172 | // They should not be outputted to skin. |
| 173 | 'icon', 'button', |
| 174 | 'tooltip-params', 'exists', 'link-html' ] as $k |
| 175 | ) { |
| 176 | unset( $attrs[$k] ); |
| 177 | } |
| 178 | |
| 179 | if ( isset( $attrs['data'] ) ) { |
| 180 | foreach ( $attrs['data'] as $key => $value ) { |
| 181 | if ( $value === null ) { |
| 182 | continue; |
| 183 | } |
| 184 | $attrs[ 'data-' . $key ] = $value; |
| 185 | } |
| 186 | unset( $attrs[ 'data' ] ); |
| 187 | } |
| 188 | $this->applyLinkTitleAttribs( $item, true, $attrs ); |
| 189 | $class = $attrs['class'] ?? []; |
| 190 | if ( isset( $options['link-class'] ) ) { |
| 191 | $class = SkinComponentUtils::addClassToClassList( |
| 192 | $class, $options['link-class'] |
| 193 | ); |
| 194 | } |
| 195 | $attrs['class'] = is_array( $class ) ? implode( ' ', $class ) : $class; |
| 196 | foreach ( $attrs as $key => $value ) { |
| 197 | if ( $value === null ) { |
| 198 | continue; |
| 199 | } |
| 200 | if ( $classAsProperty && $key === 'class' ) { |
| 201 | continue; |
| 202 | } |
| 203 | $linkHtmlAttributes[] = [ 'key' => $key, 'value' => $value ]; |
| 204 | } |
| 205 | |
| 206 | if ( isset( $item['link-html'] ) ) { |
| 207 | $html = $item['link-html'] . ' ' . $html; |
| 208 | } |
| 209 | |
| 210 | $html = Html::rawElement( isset( $attrs['href'] ) |
| 211 | ? 'a' |
| 212 | : $options['link-fallback'], $attrs, $html ); |
| 213 | } |
| 214 | $data = [ |
| 215 | 'html' => $html, |
| 216 | 'icon' => $icon, |
| 217 | 'array-attributes' => count( $linkHtmlAttributes ) > 0 ? $linkHtmlAttributes : null, |
| 218 | 'text' => trim( $text ), |
| 219 | ]; |
| 220 | if ( $classAsProperty ) { |
| 221 | $data['class'] = $attrs['class'] ?? ''; |
| 222 | } |
| 223 | return $data; |
| 224 | } |
| 225 | |
| 226 | /** |
| 227 | * Helper for makeLink(). Add tooltip and accesskey attributes to $attrs |
| 228 | * according to the input item array. |
| 229 | * |
| 230 | * @param array $item |
| 231 | * @param bool $allowAccessKey |
| 232 | * @param array &$attrs |
| 233 | */ |
| 234 | private function applyLinkTitleAttribs( $item, $allowAccessKey, &$attrs ) { |
| 235 | $tooltipId = $item['single-id'] ?? $item['id'] ?? null; |
| 236 | if ( $tooltipId === null ) { |
| 237 | return; |
| 238 | } |
| 239 | $tooltipParams = $item['tooltip-params'] ?? []; |
| 240 | $tooltipOption = isset( $item['exists'] ) && $item['exists'] === false ? 'nonexisting' : null; |
| 241 | |
| 242 | if ( !$allowAccessKey || !empty( $item['tooltiponly'] ) ) { |
| 243 | $title = Linker::titleAttrib( $tooltipId, $tooltipOption, $tooltipParams ); |
| 244 | if ( $title !== false ) { |
| 245 | $attrs['title'] = $title; |
| 246 | } |
| 247 | } else { |
| 248 | $tip = Linker::tooltipAndAccesskeyAttribs( |
| 249 | $tooltipId, |
| 250 | $tooltipParams, |
| 251 | $tooltipOption |
| 252 | ); |
| 253 | if ( isset( $tip['title'] ) && $tip['title'] !== false ) { |
| 254 | $attrs['title'] = $tip['title']; |
| 255 | } |
| 256 | if ( isset( $tip['accesskey'] ) && $tip['accesskey'] !== false ) { |
| 257 | $attrs['accesskey'] = $tip['accesskey']; |
| 258 | } |
| 259 | } |
| 260 | } |
| 261 | |
| 262 | /** |
| 263 | * @inheritDoc |
| 264 | */ |
| 265 | public function getTemplateData(): array { |
| 266 | return $this->makeLink( $this->key, $this->item, $this->options ); |
| 267 | } |
| 268 | } |