diff --git a/README.md b/README.md index 79e7953..ddc314d 100644 --- a/README.md +++ b/README.md @@ -1,12 +1,11 @@ # Image-shortcake # -**Contributors:** fusionengineering -**Donate link:** http://example.com/ -**Tags:** comments, spam -**Requires at least:** 3.0.1 -**Tested up to:** 3.4 -**Stable tag:** 4.3 -**License:** GPLv2 or later -**License URI:** http://www.gnu.org/licenses/gpl-2.0.html +**Contributors:** fusionengineering +**Tags:** shortcodes, images +**Requires at least:** 3.0.1 +**Tested up to:** 4.2 +**Stable tag:** 0.1 +**License:** GPLv2 or later +**License URI:** http://www.gnu.org/licenses/gpl-2.0.html Image Shortcake adds a shortcode for images, so that themes can template and filter images displayed in posts. It is designed to work with the UI provided @@ -26,7 +25,141 @@ easily filtered in themes, plugins and templates, and since the original attachment data is preseved as attributes on the shortcode, it becomes much easier for modify the way images are marked up in themes. -For best results, use with [Shortcake (Shortcode UI)](https://github.com/fusioneng/Shortcake) plugin. +For best results, use this with the [Shortcake (Shortcode +UI)](https://github.com/fusioneng/Shortcake) plugin. Shortcake offers an +easy to use interface to manage shortcodes in post content. + +What could you use this for? Well, at [Fusion](http://fusion.net) we use this +shortcode for: + +* **Responsive Images**. By filtering the output of the `[img]` shortcode + image tag, we're able to insert the `srcset` attribute, so that all of + the images on our site are served responsively to browsers that support + that. + +* **Inline sharing buttons**. We've added share links to each of the + images on our site. Because these are inserted through a filter on + a shortcode and not in the post content, it's easy to modify them on the + fly. And having this logic in template files rather in on-page javascript + that runs after page load makes it quicker for users. + +* **Photo credits**. We've added "credit" as an image meta field, and we + use a filter on 'img_shortcode_output_after_linkify' to display it on all + images. + +See the [Installation](#Installation) section for more ideas and tips for +custom image templates. + +## Installation ## + +### Customizing Output ### + +The whole point of using shortcodes rather than HTML tags for images is +that you can customize the markup of images in your theme. This plugin +offers three primary hooks to modify the output: + +* `img_shortcode_output_img_tag`: Filters the output of the tag + before wrapping it in link or caption +* `img_shortcode_output_after_linkify`: Filters the output of the + tag after wrapping in link +* `img_shortcode_output_after_captionify`: Filters the output of the + tag after wrapping in link and attaching caption + +You can, of course, disregard the markup generated by this plugin +altogether and use a template part for images if you want. This example +adds EXIF data below all images containing those fields, in all post content: + +in the theme's `functions.php`: + + ``` + add_filter( 'img_shortcode_output_img_tag', 'load_image_template', 10, 2 ); + + function load_image_template( $_, $attributes ) { + ob_start(); + get_template_part( 'inline-image' ); + return ob_get_clean(); + } + ``` + +in a template file called `inline-image.php`: + + ``` + "$class $align attachment-$size", + 'alt' => $alt, + ) + ); + + if ( is_array( $exif_data ) ) { + echo ''; + } + ``` + + +### Data Migration ### + +The plugin comes with two [WP-CLI](http://wp-cli.org) commands to migrate +images in your existing content into the `[img]` shortcode format used by +this plugin. _Note: if it isn't clear, this is an early release -- use +at your own risk, and make sure you've backed up your posts before +migrating!_ + +`wp image-shortcake migrate [--dry-run]` + +This command searches the post content of the posts specified in ``, +and replaces any `` tags or `[caption]` shortcodes with `[img]` +shortcodes. Currently it only catches images added through the media +library; custom img tags will not be converted. + +If you add the `--dry-run` flag, no replacements will actually be +performed, just a summary report of the changes which would have been +made. + +`wp image-shortcake revert [--dry-run]` + +This command finds all `[img]` shortcodes in the content of any of the +posts specified in ``, and replaces them with the markup that would +be generated by those shortcodes. Note that this runs any filters in your +theme, so that if you have filtered the output of the shortcodes at any +output, those filters will be reflected in the coverted post content. + + +## Screenshots ## + +### Shortcode UI form as accessed from Insert Media > Insert Post Element ### +![Shortcode UI form as accessed from Insert Media > Insert Post +Element](http://s.wordpress.org/extend/plugins/image-shortcake/screenshot-1.png) + +This is the Shortcode UI form as accessed from Insert Media > Insert Post +Element. (Note that you can also insert images as usual, by inserting them in +the Media Library - they will be transparently converted into shortcodes behind +the scenes for you.) + +### Image preview renders in the editor just as usual ### + +![Image preview in editor](http://s.wordpress.org/extend/plugins/image-shortcake/screenshot-2.png) + +Image preview renders in the editor just as it normally would. The Shortcake +plugin's edit/delete buttons are available to modify the shortcode through the +provided UI. + ## Changelog ## diff --git a/inc/class-wp-cli-img-shortcode-command.php b/inc/class-wp-cli-img-shortcode-command.php index 159a401..0f54d89 100644 --- a/inc/class-wp-cli-img-shortcode-command.php +++ b/inc/class-wp-cli-img-shortcode-command.php @@ -4,7 +4,7 @@ * Migrate post content to use image shortcodes. * */ -class Img_Shortcode_Command extends WP_CLI_Command { +class Image_Shortcake_Command extends WP_CLI_Command { public function __construct() { $this->fetcher = new \WP_CLI\Fetchers\Post; @@ -25,15 +25,15 @@ public function __construct() { * ## EXAMPLES * * ## Migrate all Posts to the Image Shortcake syntax - * wp img-shortcode migrate `wp post list --post_type=post` --ids` + * wp image-shortcake-shortcode migrate `wp post list --post_type=post` --ids` * * ## Converts images to shortcodes on one post, preserving a log to rollback in case of errors. - * wp img-shortcode migrate 123 > potential-oops.txt + * wp image-shortcake migrate 123 > potential-oops.txt * * * @synopsis ... [--dry-run] */ - public function update( $args, $assoc_args ) { + public function migrate( $args, $assoc_args ) { foreach( array_filter( $args ) as $post_ID ) { @@ -105,4 +105,4 @@ public function update( $args, $assoc_args ) { } -WP_CLI::add_command( 'img-shortcode', 'Img_Shortcode_Command' ); +WP_CLI::add_command( 'image-shortcake', 'Image_Shortcake_Command' ); diff --git a/readme.txt b/readme.txt index 2bc1493..33c71b7 100644 --- a/readme.txt +++ b/readme.txt @@ -1,10 +1,9 @@ === Image-shortcake === Contributors: fusionengineering -Donate link: http://example.com/ -Tags: comments, spam +Tags: shortcodes, images Requires at least: 3.0.1 -Tested up to: 3.4 -Stable tag: 4.3 +Tested up to: 4.2 +Stable tag: 0.1 License: GPLv2 or later License URI: http://www.gnu.org/licenses/gpl-2.0.html @@ -26,7 +25,131 @@ easily filtered in themes, plugins and templates, and since the original attachment data is preseved as attributes on the shortcode, it becomes much easier for modify the way images are marked up in themes. -For best results, use with [Shortcake (Shortcode UI)](https://github.com/fusioneng/Shortcake) plugin. +For best results, use this with the [Shortcake (Shortcode +UI)](https://github.com/fusioneng/Shortcake) plugin. Shortcake offers an +easy to use interface to manage shortcodes in post content. + +What could you use this for? Well, at [Fusion](http://fusion.net) we use this +shortcode for: + +* **Responsive Images**. By filtering the output of the `[img]` shortcode + image tag, we're able to insert the `srcset` attribute, so that all of + the images on our site are served responsively to browsers that support + that. + +* **Inline sharing buttons**. We've added share links to each of the + images on our site. Because these are inserted through a filter on + a shortcode and not in the post content, it's easy to modify them on the + fly. And having this logic in template files rather in on-page javascript + that runs after page load makes it quicker for users. + +* **Photo credits**. We've added "credit" as an image meta field, and we + use a filter on 'img_shortcode_output_after_linkify' to display it on all + images. + +See the [Installation](#Installation) section for more ideas and tips for +custom image templates. + +== Installation == + += Customizing Output = + +The whole point of using shortcodes rather than HTML tags for images is +that you can customize the markup of images in your theme. This plugin +offers three primary hooks to modify the output: + +* `img_shortcode_output_img_tag`: Filters the output of the tag + before wrapping it in link or caption +* `img_shortcode_output_after_linkify`: Filters the output of the + tag after wrapping in link +* `img_shortcode_output_after_captionify`: Filters the output of the + tag after wrapping in link and attaching caption + +You can, of course, disregard the markup generated by this plugin +altogether and use a template part for images if you want. This example +adds EXIF data below all images containing those fields, in all post content: + +in the theme's `functions.php`: + + ``` + add_filter( 'img_shortcode_output_img_tag', 'load_image_template', 10, 2 ); + + function load_image_template( $_, $attributes ) { + ob_start(); + get_template_part( 'inline-image' ); + return ob_get_clean(); + } + ``` + +in a template file called `inline-image.php`: + + ``` + "$class $align attachment-$size", + 'alt' => $alt, + ) + ); + + if ( is_array( $exif_data ) ) { + echo '
    '; + foreach ( $exif_data as $field => $value ) { + echo '
  • ' . $field . ': ' . $value . '
    • '; + } + echo '
'; + } + ``` + + += Data Migration = + +The plugin comes with two [WP-CLI](http://wp-cli.org) commands to migrate +images in your existing content into the `[img]` shortcode format used by +this plugin. _Note: if it isn't clear, this is an early release -- use +at your own risk, and make sure you've backed up your posts before +migrating!_ + +`wp image-shortcake migrate [--dry-run]` + +This command searches the post content of the posts specified in ``, +and replaces any `` tags or `[caption]` shortcodes with `[img]` +shortcodes. Currently it only catches images added through the media +library; custom img tags will not be converted. + +If you add the `--dry-run` flag, no replacements will actually be +performed, just a summary report of the changes which would have been +made. + +`wp image-shortcake revert [--dry-run]` + +This command finds all `[img]` shortcodes in the content of any of the +posts specified in ``, and replaces them with the markup that would +be generated by those shortcodes. Note that this runs any filters in your +theme, so that if you have filtered the output of the shortcodes at any +output, those filters will be reflected in the coverted post content. + + +== Screenshots == + +1. This is the shortcode UI form as accessed from **Insert Media > Insert post + Element**. (Note that you can also insert images as usual, by inserting them + in the Media Library - they will be transparently converted into shortcodes + behind the scenes for you.) +2. Once inserted into a post, the image preview renders in the editor just as + it normally would. The Shortcake plugin's edit/delete buttons are available + to modify the shortcode through the provided UI. == Changelog == diff --git a/screenshots/screenshot-1.png b/screenshots/screenshot-1.png new file mode 100644 index 0000000..0bbab4c Binary files /dev/null and b/screenshots/screenshot-1.png differ diff --git a/screenshots/screenshot-2.png b/screenshots/screenshot-2.png new file mode 100644 index 0000000..1c2ae47 Binary files /dev/null and b/screenshots/screenshot-2.png differ