image-widget
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image-widget.php
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image-widget.php
405 lines
| 1 | <?php |
| 2 | /* |
| 3 | Plugin Name: Image Widget |
| 4 | Plugin URI: http://wordpress.org/extend/plugins/image-widget/ |
| 5 | Description: A simple image widget that uses the native WordPress media manager to add image widgets to your site. |
| 6 | Author: Modern Tribe, Inc. |
| 7 | Version: 4.0.4 |
| 8 | Author URI: http://tri.be |
| 9 | */ |
| 10 | |
| 11 | // Block direct requests |
| 12 | if ( !defined('ABSPATH') ) |
| 13 | die('-1'); |
| 14 | |
| 15 | // Load the widget on widgets_init |
| 16 | function tribe_load_image_widget() { |
| 17 | register_widget('Tribe_Image_Widget'); |
| 18 | } |
| 19 | add_action('widgets_init', 'tribe_load_image_widget'); |
| 20 | |
| 21 | /** |
| 22 | * Tribe_Image_Widget class |
| 23 | **/ |
| 24 | class Tribe_Image_Widget extends WP_Widget { |
| 25 | |
| 26 | const VERSION = '4.0.3'; |
| 27 | |
| 28 | const CUSTOM_IMAGE_SIZE_SLUG = 'tribe_image_widget_custom'; |
| 29 | |
| 30 | /** |
| 31 | * Tribe Image Widget constructor |
| 32 | * |
| 33 | * @author Modern Tribe, Inc. |
| 34 | */ |
| 35 | function Tribe_Image_Widget() { |
| 36 | load_plugin_textdomain( 'image_widget', false, trailingslashit(basename(dirname(__FILE__))) . 'lang/'); |
| 37 | $widget_ops = array( 'classname' => 'widget_sp_image', 'description' => __( 'Showcase a single image with a Title, URL, and a Description', 'image_widget' ) ); |
| 38 | $control_ops = array( 'id_base' => 'widget_sp_image' ); |
| 39 | $this->WP_Widget('widget_sp_image', __('Image Widget', 'image_widget'), $widget_ops, $control_ops); |
| 40 | if ( $this->use_old_uploader() ) { |
| 41 | require_once( 'lib/ImageWidgetDeprecated.php' ); |
| 42 | new ImageWidgetDeprecated( $this ); |
| 43 | } else { |
| 44 | add_action( 'sidebar_admin_setup', array( $this, 'admin_setup' ) ); |
| 45 | } |
| 46 | add_action( 'admin_head-widgets.php', array( $this, 'admin_head' ) ); |
| 47 | |
| 48 | add_action( 'plugin_row_meta', array( $this, 'plugin_row_meta' ),10 ,2 ); |
| 49 | |
| 50 | add_action( 'admin_notices', array( $this, 'post_upgrade_nag') ); |
| 51 | add_action( 'network_admin_notices', array( $this, 'post_upgrade_nag') ); |
| 52 | } |
| 53 | |
| 54 | /** |
| 55 | * Test to see if this version of WordPress supports the new image manager. |
| 56 | * @return bool true if the current version of WordPress does NOT support the current image management tech. |
| 57 | */ |
| 58 | private function use_old_uploader() { |
| 59 | if ( defined( 'IMAGE_WIDGET_COMPATIBILITY_TEST' ) ) return true; |
| 60 | return !function_exists('wp_enqueue_media'); |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * Enqueue all the javascript. |
| 65 | */ |
| 66 | function admin_setup() { |
| 67 | wp_enqueue_media(); |
| 68 | wp_enqueue_script( 'tribe-image-widget', plugins_url('resources/js/image-widget.js', __FILE__), array( 'jquery', 'media-upload', 'media-views' ), self::VERSION ); |
| 69 | |
| 70 | wp_localize_script( 'tribe-image-widget', 'TribeImageWidget', array( |
| 71 | 'frame_title' => __( 'Select an Image', 'image_widget' ), |
| 72 | 'button_title' => __( 'Insert Into Widget', 'image_widget' ), |
| 73 | ) ); |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * Widget frontend output |
| 78 | * |
| 79 | * @param array $args |
| 80 | * @param array $instance |
| 81 | * @author Modern Tribe, Inc. |
| 82 | */ |
| 83 | function widget( $args, $instance ) { |
| 84 | extract( $args ); |
| 85 | $instance = wp_parse_args( (array) $instance, self::get_defaults() ); |
| 86 | if ( !empty( $instance['imageurl'] ) || !empty( $instance['attachment_id'] ) ) { |
| 87 | |
| 88 | $instance['title'] = apply_filters( 'widget_title', empty( $instance['title'] ) ? '' : $instance['title'] ); |
| 89 | $instance['description'] = apply_filters( 'widget_text', $instance['description'], $args, $instance ); |
| 90 | $instance['link'] = apply_filters( 'image_widget_image_link', esc_url( $instance['link'] ), $args, $instance ); |
| 91 | $instance['linktarget'] = apply_filters( 'image_widget_image_link_target', esc_attr( $instance['linktarget'] ), $args, $instance ); |
| 92 | $instance['width'] = apply_filters( 'image_widget_image_width', abs( $instance['width'] ), $args, $instance ); |
| 93 | $instance['height'] = apply_filters( 'image_widget_image_height', abs( $instance['height'] ), $args, $instance ); |
| 94 | $instance['align'] = apply_filters( 'image_widget_image_align', esc_attr( $instance['align'] ), $args, $instance ); |
| 95 | $instance['alt'] = apply_filters( 'image_widget_image_alt', esc_attr( $instance['alt'] ), $args, $instance ); |
| 96 | |
| 97 | if ( !defined( 'IMAGE_WIDGET_COMPATIBILITY_TEST' ) ) { |
| 98 | $instance['attachment_id'] = ( $instance['attachment_id'] > 0 ) ? $instance['attachment_id'] : $instance['image']; |
| 99 | $instance['attachment_id'] = apply_filters( 'image_widget_image_attachment_id', abs( $instance['attachment_id'] ), $args, $instance ); |
| 100 | $instance['size'] = apply_filters( 'image_widget_image_size', esc_attr( $instance['size'] ), $args, $instance ); |
| 101 | } |
| 102 | $instance['imageurl'] = apply_filters( 'image_widget_image_url', esc_url( $instance['imageurl'] ), $args, $instance ); |
| 103 | |
| 104 | // No longer using extracted vars. This is here for backwards compatibility. |
| 105 | extract( $instance ); |
| 106 | |
| 107 | include( $this->getTemplateHierarchy( 'widget' ) ); |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * Update widget options |
| 113 | * |
| 114 | * @param object $new_instance Widget Instance |
| 115 | * @param object $old_instance Widget Instance |
| 116 | * @return object |
| 117 | * @author Modern Tribe, Inc. |
| 118 | */ |
| 119 | function update( $new_instance, $old_instance ) { |
| 120 | $instance = $old_instance; |
| 121 | $new_instance = wp_parse_args( (array) $new_instance, self::get_defaults() ); |
| 122 | $instance['title'] = strip_tags($new_instance['title']); |
| 123 | if ( current_user_can('unfiltered_html') ) { |
| 124 | $instance['description'] = $new_instance['description']; |
| 125 | } else { |
| 126 | $instance['description'] = wp_filter_post_kses($new_instance['description']); |
| 127 | } |
| 128 | $instance['link'] = $new_instance['link']; |
| 129 | $instance['linktarget'] = $new_instance['linktarget']; |
| 130 | $instance['width'] = abs( $new_instance['width'] ); |
| 131 | $instance['height'] =abs( $new_instance['height'] ); |
| 132 | if ( !defined( 'IMAGE_WIDGET_COMPATIBILITY_TEST' ) ) { |
| 133 | $instance['size'] = $new_instance['size']; |
| 134 | } |
| 135 | $instance['align'] = $new_instance['align']; |
| 136 | $instance['alt'] = $new_instance['alt']; |
| 137 | |
| 138 | // Reverse compatibility with $image, now called $attachement_id |
| 139 | if ( !defined( 'IMAGE_WIDGET_COMPATIBILITY_TEST' ) && $new_instance['attachment_id'] > 0 ) { |
| 140 | $instance['attachment_id'] = abs( $new_instance['attachment_id'] ); |
| 141 | } elseif ( $new_instance['image'] > 0 ) { |
| 142 | $instance['attachment_id'] = $instance['image'] = abs( $new_instance['image'] ); |
| 143 | if ( class_exists('ImageWidgetDeprecated') ) { |
| 144 | $instance['imageurl'] = ImageWidgetDeprecated::get_image_url( $instance['image'], $instance['width'], $instance['height'] ); // image resizing not working right now |
| 145 | } |
| 146 | } |
| 147 | $instance['imageurl'] = $new_instance['imageurl']; // deprecated |
| 148 | |
| 149 | $instance['aspect_ratio'] = $this->get_image_aspect_ratio( $instance ); |
| 150 | |
| 151 | return $instance; |
| 152 | } |
| 153 | |
| 154 | /** |
| 155 | * Form UI |
| 156 | * |
| 157 | * @param object $instance Widget Instance |
| 158 | * @author Modern Tribe, Inc. |
| 159 | */ |
| 160 | function form( $instance ) { |
| 161 | $instance = wp_parse_args( (array) $instance, self::get_defaults() ); |
| 162 | if ( $this->use_old_uploader() ) { |
| 163 | include( $this->getTemplateHierarchy( 'widget-admin.deprecated' ) ); |
| 164 | } else { |
| 165 | include( $this->getTemplateHierarchy( 'widget-admin' ) ); |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | /** |
| 170 | * Admin header css |
| 171 | * |
| 172 | * @author Modern Tribe, Inc. |
| 173 | */ |
| 174 | function admin_head() { |
| 175 | ?> |
| 176 | <style type="text/css"> |
| 177 | .uploader input.button { |
| 178 | width: 100%; |
| 179 | height: 34px; |
| 180 | line-height: 33px; |
| 181 | } |
| 182 | .tribe_preview .aligncenter { |
| 183 | display: block; |
| 184 | margin-left: auto !important; |
| 185 | margin-right: auto !important; |
| 186 | } |
| 187 | .tribe_preview { |
| 188 | overflow: hidden; |
| 189 | max-height: 300px; |
| 190 | } |
| 191 | .tribe_preview img { |
| 192 | margin: 10px 0; |
| 193 | } |
| 194 | </style> |
| 195 | <?php |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * Render an array of default values. |
| 200 | * |
| 201 | * @return array default values |
| 202 | */ |
| 203 | private static function get_defaults() { |
| 204 | |
| 205 | $defaults = array( |
| 206 | 'title' => '', |
| 207 | 'description' => '', |
| 208 | 'link' => '', |
| 209 | 'linktarget' => '', |
| 210 | 'width' => 0, |
| 211 | 'height' => 0, |
| 212 | 'image' => 0, // reverse compatible - now attachement_id |
| 213 | 'imageurl' => '', // reverse compatible. |
| 214 | 'align' => 'none', |
| 215 | 'alt' => '', |
| 216 | ); |
| 217 | |
| 218 | if ( !defined( 'IMAGE_WIDGET_COMPATIBILITY_TEST' ) ) { |
| 219 | $defaults['size'] = self::CUSTOM_IMAGE_SIZE_SLUG; |
| 220 | $defaults['attachment_id'] = 0; |
| 221 | } |
| 222 | |
| 223 | return $defaults; |
| 224 | } |
| 225 | |
| 226 | /** |
| 227 | * Render the image html output. |
| 228 | * |
| 229 | * @param array $instance |
| 230 | * @param bool $include_link will only render the link if this is set to true. Otherwise link is ignored. |
| 231 | * @return string image html |
| 232 | */ |
| 233 | private function get_image_html( $instance, $include_link = true ) { |
| 234 | |
| 235 | // Backwards compatible image display. |
| 236 | if ( $instance['attachment_id'] == 0 && $instance['image'] > 0 ) { |
| 237 | $instance['attachment_id'] = $instance['image']; |
| 238 | } |
| 239 | |
| 240 | $output = ''; |
| 241 | |
| 242 | if ( $include_link && !empty( $instance['link'] ) ) { |
| 243 | $attr = array( |
| 244 | 'href' => $instance['link'], |
| 245 | 'target' => $instance['linktarget'], |
| 246 | 'class' => $this->widget_options['classname'].'-image-link', |
| 247 | 'title' => ( !empty( $instance['alt'] ) ) ? $instance['alt'] : $instance['title'], |
| 248 | ); |
| 249 | $attr = apply_filters('image_widget_link_attributes', $attr, $instance ); |
| 250 | $attr = array_map( 'esc_attr', $attr ); |
| 251 | $output = '<a'; |
| 252 | foreach ( $attr as $name => $value ) { |
| 253 | $output .= sprintf( ' %s="%s"', $name, $value ); |
| 254 | } |
| 255 | $output .= '>'; |
| 256 | } |
| 257 | |
| 258 | $size = $this->get_image_size( $instance ); |
| 259 | if ( is_array( $size ) ) { |
| 260 | $instance['width'] = $size[0]; |
| 261 | $instance['height'] = $size[1]; |
| 262 | } elseif ( !empty( $instance['attachment_id'] ) ) { |
| 263 | //$instance['width'] = $instance['height'] = 0; |
| 264 | $image_details = wp_get_attachment_image_src( $instance['attachment_id'], $size ); |
| 265 | if ($image_details) { |
| 266 | $instance['imageurl'] = $image_details[0]; |
| 267 | $instance['width'] = $image_details[1]; |
| 268 | $instance['height'] = $image_details[2]; |
| 269 | } |
| 270 | } |
| 271 | $instance['width'] = abs( $instance['width'] ); |
| 272 | $instance['height'] = abs( $instance['height'] ); |
| 273 | |
| 274 | $attr = array(); |
| 275 | $attr['alt'] = $instance['title']; |
| 276 | if (is_array($size)) { |
| 277 | $attr['class'] = 'attachment-'.join('x',$size); |
| 278 | } else { |
| 279 | $attr['class'] = 'attachment-'.$size; |
| 280 | } |
| 281 | $attr['style'] = ''; |
| 282 | if (!empty($instance['width'])) { |
| 283 | $attr['style'] .= "max-width: {$instance['width']}px;"; |
| 284 | } |
| 285 | if (!empty($instance['height'])) { |
| 286 | $attr['style'] .= "max-height: {$instance['height']}px;"; |
| 287 | } |
| 288 | if (!empty($instance['align']) && $instance['align'] != 'none') { |
| 289 | $attr['class'] .= " align{$instance['align']}"; |
| 290 | } |
| 291 | $attr = apply_filters( 'image_widget_image_attributes', $attr, $instance ); |
| 292 | |
| 293 | // If there is an imageurl, use it to render the image. Eventually we should kill this and simply rely on attachment_ids. |
| 294 | if ( !empty( $instance['imageurl'] ) ) { |
| 295 | // If all we have is an image src url we can still render an image. |
| 296 | $attr['src'] = $instance['imageurl']; |
| 297 | $attr = array_map( 'esc_attr', $attr ); |
| 298 | $hwstring = image_hwstring( $instance['width'], $instance['height'] ); |
| 299 | $output .= rtrim("<img $hwstring"); |
| 300 | foreach ( $attr as $name => $value ) { |
| 301 | $output .= sprintf( ' %s="%s"', $name, $value ); |
| 302 | } |
| 303 | $output .= ' />'; |
| 304 | } elseif( abs( $instance['attachment_id'] ) > 0 ) { |
| 305 | $output .= wp_get_attachment_image($instance['attachment_id'], $size, false, $attr); |
| 306 | } |
| 307 | |
| 308 | if ( $include_link && !empty( $instance['link'] ) ) { |
| 309 | $output .= '</a>'; |
| 310 | } |
| 311 | |
| 312 | return $output; |
| 313 | } |
| 314 | |
| 315 | /** |
| 316 | * Assesses the image size in case it has not been set or in case there is a mismatch. |
| 317 | * |
| 318 | * @param $instance |
| 319 | * @return array|string |
| 320 | */ |
| 321 | private function get_image_size( $instance ) { |
| 322 | if ( !empty( $instance['size'] ) && $instance['size'] != self::CUSTOM_IMAGE_SIZE_SLUG ) { |
| 323 | $size = $instance['size']; |
| 324 | } elseif ( isset( $instance['width'] ) && is_numeric($instance['width']) && isset( $instance['height'] ) && is_numeric($instance['height']) ) { |
| 325 | $size = array(abs($instance['width']),abs($instance['height'])); |
| 326 | } else { |
| 327 | $size = 'full'; |
| 328 | } |
| 329 | return $size; |
| 330 | } |
| 331 | |
| 332 | /** |
| 333 | * Establish the aspect ratio of the image. |
| 334 | * |
| 335 | * @param $instance |
| 336 | * @return float|number |
| 337 | */ |
| 338 | private function get_image_aspect_ratio( $instance ) { |
| 339 | if ( !empty( $instance['aspect_ratio'] ) ) { |
| 340 | return abs( $instance['aspect_ratio'] ); |
| 341 | } else { |
| 342 | $attachment_id = ( !empty($instance['attachment_id']) ) ? $instance['attachment_id'] : $instance['image']; |
| 343 | if ( !empty($attachment_id) ) { |
| 344 | $image_details = wp_get_attachment_image_src( $attachment_id, 'full' ); |
| 345 | if ($image_details) { |
| 346 | return ( $image_details[1]/$image_details[2] ); |
| 347 | } |
| 348 | } |
| 349 | } |
| 350 | } |
| 351 | |
| 352 | /** |
| 353 | * Loads theme files in appropriate hierarchy: 1) child theme, |
| 354 | * 2) parent template, 3) plugin resources. will look in the image-widget/ |
| 355 | * directory in a theme and the views/ directory in the plugin |
| 356 | * |
| 357 | * @param string $template template file to search for |
| 358 | * @return template path |
| 359 | * @author Modern Tribe, Inc. (Matt Wiebe) |
| 360 | **/ |
| 361 | |
| 362 | function getTemplateHierarchy($template) { |
| 363 | // whether or not .php was added |
| 364 | $template_slug = rtrim($template, '.php'); |
| 365 | $template = $template_slug . '.php'; |
| 366 | |
| 367 | if ( $theme_file = locate_template(array('image-widget/'.$template)) ) { |
| 368 | $file = $theme_file; |
| 369 | } else { |
| 370 | $file = 'views/' . $template; |
| 371 | } |
| 372 | return apply_filters( 'sp_template_image-widget_'.$template, $file); |
| 373 | } |
| 374 | |
| 375 | |
| 376 | /** |
| 377 | * Display a thank you nag when the plugin has been upgraded. |
| 378 | */ |
| 379 | public function post_upgrade_nag() { |
| 380 | if ( !current_user_can('install_plugins') ) return; |
| 381 | |
| 382 | $version_key = '_image_widget_version'; |
| 383 | if ( get_site_option( $version_key ) == self::VERSION ) return; |
| 384 | |
| 385 | $msg = sprintf(__('Thanks for upgrading the Image Widget! If you like this plugin, please consider <a href="%s" target="_blank">rating it</a> and maybe even check out our premium plugins including our <a href="%s" target="_blank">Events Calendar Pro</a>!', 'image-widget'),'http://wordpress.org/extend/plugins/image-widget/?source=image-widget&pos=nag','http://tri.be/wordpress-events-calendar-pro/?source=image-widget&pos=nag'); |
| 386 | echo "<div class='update-nag'>$msg</div>"; |
| 387 | |
| 388 | update_site_option( $version_key, self::VERSION ); |
| 389 | } |
| 390 | |
| 391 | /** |
| 392 | * Display an informational section in the plugin admin ui. |
| 393 | * @param $meta |
| 394 | * @param $file |
| 395 | * |
| 396 | * @return array |
| 397 | */ |
| 398 | public function plugin_row_meta( $meta, $file ) { |
| 399 | if ( $file == plugin_basename( dirname(__FILE__).'/image-widget.php' ) ) { |
| 400 | $meta[] = '<span class="tribe-test">'.sprintf(__('Check out our other <a href="%s" target="_blank">plugins</a> including our <a href="%s" target="_blank">Events Calendar Pro</a>!', 'image-widget'),'http://tri.be/products/?source=image-widget&pos=pluginlist','http://tri.be/wordpress-events-calendar-pro/?source=image-widget&pos=pluginlist').'</span>'; |
| 401 | } |
| 402 | return $meta; |
| 403 | } |
| 404 | } |
| 405 |