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ad_type_image.php
210 lines
| 1 | <?php |
| 2 | /** |
| 3 | * Advanced Ads Image Ad Type |
| 4 | * |
| 5 | * @package Advanced_Ads |
| 6 | * @author Thomas Maier <thomas.maier@webgilde.com> |
| 7 | * @license GPL-2.0+ |
| 8 | * @link http://webgilde.com |
| 9 | * @copyright 2015 Thomas Maier, webgilde GmbH |
| 10 | * @since 1.6.10 |
| 11 | * |
| 12 | * Class containing information about the content ad type |
| 13 | * this should also work as an example for other ad types |
| 14 | * |
| 15 | */ |
| 16 | class Advanced_Ads_Ad_Type_Image extends Advanced_Ads_Ad_Type_Abstract{ |
| 17 | |
| 18 | /** |
| 19 | * ID - internal type of the ad type |
| 20 | * |
| 21 | * must be static so set your own ad type ID here |
| 22 | * use slug like format, only lower case, underscores and hyphens |
| 23 | * |
| 24 | * @since 1.6.10 |
| 25 | */ |
| 26 | public $ID = 'image'; |
| 27 | |
| 28 | /** |
| 29 | * set basic attributes |
| 30 | * |
| 31 | * @since 1.6.10 |
| 32 | */ |
| 33 | public function __construct() { |
| 34 | $this->title = __( 'Image Ad', 'advanced-ads' ); |
| 35 | $this->description = __( 'Ads in various image formats.', 'advanced-ads' ); |
| 36 | $this->parameters = array( |
| 37 | 'image_url' => '', |
| 38 | 'image_title' => '', |
| 39 | 'image_alt' => '', |
| 40 | ); |
| 41 | } |
| 42 | |
| 43 | /** |
| 44 | * output for the ad parameters metabox |
| 45 | * |
| 46 | * @param obj $ad ad object |
| 47 | * @since 1.6.10 |
| 48 | */ |
| 49 | public function render_parameters($ad){ |
| 50 | // load tinymc content exitor |
| 51 | $id = ( isset( $ad->output['image_id'] ) ) ? $ad->output['image_id'] : ''; |
| 52 | $url = ( isset( $ad->url ) ) ? esc_attr( $ad->url ) : ''; |
| 53 | |
| 54 | ?><p><button href="#" class="advads_image_upload button button-secondary" type="button" data-uploader-title="<?php |
| 55 | _e( 'Insert File', 'advanced-ads' ); ?>" data-uploader-button-text="<?php _e( 'Insert', 'advanced-ads' ); ?>" onclick="return false;"><?php _e( 'select image', 'advanced-ads' ); ?></button> |
| 56 | <a id="advads-image-edit-link" href="<?php if( $id ){ echo get_edit_post_link( $id ); } ?>"><?php _e('edit', 'advanced-ads' ); ?></a> |
| 57 | </p> |
| 58 | <input type="hidden" name="advanced_ad[output][image_id]" value="<?php echo $id; ?>" id="advads-image-id"/> |
| 59 | <div id="advads-image-preview"> |
| 60 | <?php $this->create_image_tag( $id, $ad ); ?> |
| 61 | </div> |
| 62 | <?php // don’t show if tracking plugin enabled |
| 63 | if( ! defined( 'AAT_VERSION' )) : ?> |
| 64 | <span class="label"><?php _e( 'URL', 'advanced-ads' ); ?></span> |
| 65 | <div> |
| 66 | <input type="url" name="advanced_ad[url]" id="advads-url" class="advads-ad-url" value="<?php echo $url; ?>" placeholder="<?php _e( 'Link to target site', 'advanced-ads' ); ?>" /></p> |
| 67 | </div><hr/><?php |
| 68 | endif; |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * render image tag |
| 73 | * |
| 74 | * @param int $attachment_id post id of the image |
| 75 | * @param obj $ad ad object, since 1.8.21 |
| 76 | * @since 1.6.10 |
| 77 | */ |
| 78 | public function create_image_tag( $attachment_id, $ad ){ |
| 79 | |
| 80 | $image = wp_get_attachment_image_src( $attachment_id, 'full' ); |
| 81 | $style = ''; |
| 82 | |
| 83 | if ( $image ) { |
| 84 | list( $src, $width, $height ) = $image; |
| 85 | // override image sizes with the sizes given in ad options, but in frontend only |
| 86 | if( ! is_admin() || ( // is frontend |
| 87 | is_admin() && defined( 'DOING_AJAX' ) && DOING_AJAX ) ){ // is AJAX call (cache-busting) |
| 88 | $width = isset( $ad->width ) ? absint( $ad->width ) : $width; |
| 89 | $height = isset( $ad->height ) ? absint( $ad->height ) : $height; |
| 90 | } |
| 91 | $hwstring = image_hwstring($width, $height); |
| 92 | $attachment = get_post($attachment_id); |
| 93 | $alt = trim(esc_textarea( get_post_meta($attachment_id, '_wp_attachment_image_alt', true) )); |
| 94 | |
| 95 | global $wp_current_filter; |
| 96 | |
| 97 | $more_attributes = $srcset = $sizes = ''; |
| 98 | // create srcset and sizes attributes if we are in the the_content filter and in WordPress 4.4 |
| 99 | if( isset( $wp_current_filter ) |
| 100 | && in_array( 'the_content', $wp_current_filter ) |
| 101 | && ! defined( 'ADVADS_DISABLE_RESPONSIVE_IMAGES' )){ |
| 102 | if( function_exists( 'wp_get_attachment_image_srcset' ) ){ |
| 103 | $srcset = wp_get_attachment_image_srcset( $attachment_id, 'full' ); |
| 104 | } |
| 105 | if( function_exists( 'wp_get_attachment_image_sizes' ) ){ |
| 106 | $sizes = wp_get_attachment_image_sizes( $attachment_id, 'full' ); |
| 107 | } |
| 108 | if ( $srcset && $sizes ) { |
| 109 | $more_attributes .= ' srcset=\'' . $srcset . '\' sizes=\'' . $sizes . '\''; |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | // add css rule to be able to center the ad |
| 114 | if( isset( $ad->output['position'] ) && 'center' === $ad->output['position'] ){ |
| 115 | $style .= 'display: inline-block;'; |
| 116 | } |
| 117 | |
| 118 | $style = apply_filters( 'advanced-ads-ad-image-tag-style', $style ); |
| 119 | $style = '' !== $style ? 'style="' . $style . '"' : ''; |
| 120 | |
| 121 | $more_attributes = apply_filters( 'advanced-ads-ad-image-tag-attributes', $more_attributes ); |
| 122 | |
| 123 | echo rtrim("<img $hwstring") . " src='$src' alt='$alt' $more_attributes $style/>"; |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | /** |
| 128 | * render image icon for overview pages |
| 129 | * |
| 130 | * @param int $attachment_id post id of the image |
| 131 | * @since 1.7.4 |
| 132 | */ |
| 133 | public function create_image_icon( $attachment_id ){ |
| 134 | |
| 135 | $image = wp_get_attachment_image_src( $attachment_id, 'medium', true ); |
| 136 | if ( $image ) { |
| 137 | list( $src, $width, $height ) = $image; |
| 138 | |
| 139 | // scale down width or height to max 100px |
| 140 | if( $width > $height ){ |
| 141 | $height = absint( $height / ( $width / 100 ) ); |
| 142 | $width = 100; |
| 143 | } else { |
| 144 | $width = absint( $width / ( $height / 100 ) ); |
| 145 | $height = 100; |
| 146 | } |
| 147 | |
| 148 | $hwstring = trim( image_hwstring($width, $height) ); |
| 149 | $attachment = get_post($attachment_id); |
| 150 | $alt = trim(strip_tags( get_post_meta($attachment_id, '_wp_attachment_image_alt', true) )); |
| 151 | |
| 152 | echo "<img $hwstring src='$src' alt='$alt' />"; |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | /** |
| 157 | * prepare the ads frontend output by adding <object> tags |
| 158 | * |
| 159 | * @param obj $ad ad object |
| 160 | * @return str $content ad content prepared for frontend output |
| 161 | * @since 1.6.10. |
| 162 | */ |
| 163 | public function prepare_output($ad){ |
| 164 | |
| 165 | $id = ( isset( $ad->output['image_id'] ) ) ? absint( $ad->output['image_id'] ) : ''; |
| 166 | $url = ( isset( $ad->url ) ) ? esc_url( $ad->url ) : ''; |
| 167 | // get general target setting |
| 168 | $options = Advanced_Ads::get_instance()->options(); |
| 169 | $target_blank = !empty( $options['target-blank'] ) ? ' target="_blank"' : ''; |
| 170 | |
| 171 | ob_start(); |
| 172 | if( ! defined( 'AAT_VERSION' ) && $url ){ echo '<a href="'. $url .'"'.$target_blank.'>'; } |
| 173 | echo $this->create_image_tag( $id, $ad ); |
| 174 | if( ! defined( 'AAT_VERSION' ) && $url ){ echo '</a>'; } |
| 175 | |
| 176 | return ob_get_clean(); |
| 177 | } |
| 178 | |
| 179 | /** |
| 180 | * Generate a string with the original image size for output in the backend |
| 181 | * Only show, if different from entered image sizes |
| 182 | * |
| 183 | * @param obj $ad Advanced_Ads_Ad |
| 184 | * @return str empty, if the entered size is the same as the original size |
| 185 | */ |
| 186 | public static function show_original_image_size( $ad ){ |
| 187 | |
| 188 | $attachment_id = ( isset( $ad->output['image_id'] ) ) ? absint( $ad->output['image_id'] ) : ''; |
| 189 | |
| 190 | $image = wp_get_attachment_image_src( $attachment_id, 'full' ); |
| 191 | |
| 192 | if ( $image ) { |
| 193 | list( $src, $width, $height ) = $image; |
| 194 | ?><p class="description"><?php if( ( isset( $ad->width ) && $ad->width != $width ) |
| 195 | || ( isset( $ad->height ) && $ad->height != $height ) ) { |
| 196 | printf( |
| 197 | /** |
| 198 | * translators: $s is a size string like "728 x 90". |
| 199 | * This string shows up on the ad edit page of image ads if the size entered for the ad is different from the size of the uploaded image. |
| 200 | */ |
| 201 | esc_attr__( 'Original size: %s', 'advanced-ads' ), $width . ' x ' . $height ); ?></p><?php |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | return ''; |
| 206 | |
| 207 | } |
| 208 | |
| 209 | } |
| 210 |