Initial Tweaks

.gitignore

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+node_modules
+vendor

Gruntfile.js

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+module.exports = function(grunt) {
+  // Project configuration.
+  grunt.initConfig({
+    wp_readme_to_markdown: {
+      target: {
+        files: {
+          'README.md': 'readme.txt'
+        },
+      },
+    },
+    makepot: {
+      target: {
+        options: {
+          mainFile: 'uf2.php',
+          potFilename: 'languages/uf2.pot',
+          type: 'wp-plugin',
+          updateTimestamp: true
+        }
+      }
+    }
+  });
+
+  grunt.loadNpmTasks('grunt-wp-readme-to-markdown');
+  grunt.loadNpmTasks('grunt-wp-i18n');
+
+  // Default task(s).
+  grunt.registerTask('default', ['wp_readme_to_markdown']);
+};

README.md

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+# Microformats2 #
+**Contributors:** pfefferle, dshanske  
+**Tags:** microformats, indieweb  
+**Requires at least:** 4.7  
+**Tested up to:** 4.8  
+**Stable tag:** 1.0.0  
+
+Enhances your WordPress theme with microformats2 classes.
+
+## Description ##
+
+It is only a very basic implementation, because not every element is accessible through actions or filters. It is better to use a theme that supports [microformats2] fully.
+
+## Frequently Asked Questions ##
+
+### What are microformats2? ###
+
+## Changelog ##
+
+Project actively developed on Github at [pfefferle/wordpress-uf2](https://github.com/pfefferle/wordpress-uf2). Please file support issues there.
+
+### 1.0.0 ###
+* Initial Stable Release

docker-compose.yml

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+version: '2'
+services:
+  db:
+    image: mysql:5.7
+    restart: always
+    environment:
+      MYSQL_ROOT_PASSWORD: wordpress
+      MYSQL_DATABASE: wordpress
+      MYSQL_USER: wordpress
+      MYSQL_PASSWORD: wordpress
+
+  wordpress:
+    depends_on:
+      - db
+    image: wordpress:latest
+    links:
+      - db
+    ports:
+      - "80:80"
+    volumes:
+      - .:/var/www/html/wp-content/plugins/uf2
+    restart: always
+    environment:
+      WORDPRESS_DB_HOST: db:3306
+      WORDPRESS_DB_PASSWORD: wordpress
+      WORDPRESS_DEBUG: 1

includes/author.php

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+<?php
+
+/**
+ * Enhances Author and Avatar Markup
+ *
+ */
+class UF2_Author {
+	/**
+	 * Initialize plugin
+	 */
+	public function __construct() {
+		add_filter( 'get_avatar_data', array( $this, 'get_avatar_data' ), 10, 2 );
+		add_filter( 'the_author', array( $this, 'the_author' ), 99, 1 );
+	}
+
+	/**
+	 * Adds microformats v2 support to the comment_author_link.
+	 */
+	public static function author_link( $link ) {
+		// Adds a class for microformats v2
+		return preg_replace( '/(class\s*=\s*[\"|\'])/i', '${1}u-url ', $link );
+	}
+
+	/**
+	 * Adds microformats v2 support to the get_avatar_data() method.
+	 */
+	public static function get_avatar_data( $args, $id_or_email ) {
+		// Adds a class for microformats v2
+		if ( ! isset( $args['class'] ) ) {
+			$args['class'] = array();
+		}
+
+		if ( is_string( $args['class'] ) ) {
+			$args['class'] = explode( ' ', $args['class'] );
+			$args['class'][] = 'u-photo';
+		}
+		else { 
+			$args['class'][] = 'u-photo';
+		}
+		return $args;
+	}
+
+	/**
+	 * Adds microformats v2 support to the author.
+	 */
+	public static function the_author( $author ) {
+		if ( ! is_admin() ) {
+			return "<span class='p-author h-card'>$author</span>";
+		}
+
+		return $author;
+	}
+}

includes/comment.php

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+<?php
+/**
+ * Adds microformats2 support to your comments
+ *
+ */
+class UF2_Comment {
+	/**
+	 * Initialize plugin
+	 */
+	public static function construct() {
+		// check if theme already supports Microformats2
+		if ( current_theme_supports( 'microformats2' ) ) {
+			return;
+		}
+
+		add_filter( 'comment_class', array( $this, 'comment_classes' ) );
+		add_filter( 'get_comment_author_link', array( $this, 'author_link' ) );
+		add_filter( 'comment_text', array( $this, 'comment_text' ), 99, 1 );
+
+		if ( function_exists( 'genesis_html5' ) && genesis_html5() ) {
+			include_once dirname( __FILE__ ) . '/genesis.php';
+		}
+	}
+
+	/**
+	 * Adds custom classes to the array of comment classes.
+	 */
+	public static function comment_classes( $classes ) {
+		$classes[] = 'u-comment';
+		$classes[] = 'h-cite';
+
+		return $classes;
+	}
+
+	/**
+	 * Adds microformats v2 support to the comment.
+	 */
+	public static function comment_text( $comment ) {
+		if ( ! is_admin() ) {
+			return "<div class='e-content p-name p-summary'>$comment</div>";
+		}
+
+		return $comment;
+	}
+}

includes/media.php

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+<?php
+
+/**
+ * Adds microformats2 support to media and post formats
+ *
+ */
+class UF2_Media {
+	/**
+	 * Initialize plugin
+	 */
+	public function __construct() {
+		add_filter( 'wp_get_attachment_image_attributes', array( $this, 'wp_get_attachment_image_attributes' ), 10, 2 );
+	}
+
+	public static function wp_get_attachment_image_attributes( array $attr, WP_Post $attachment ) {
+		$parents = get_post_ancestors( $attachment );
+		$id = $parents[ count( $parents ) -1 ];
+		if ( 'image' !== get_post_format( $id ) ) {
+			return $attr;
+		}
+		if ( isset( $attr['class'] ) ) {
+			$class = explode( ' ', $attr['class'] );
+			$class[] = 'u-photo';
+			$attr['class'] = implode( ' ', array_unique( $class ) );
+		} else {
+			$attr['class'] = 'u-photo';
+		}
+		return $attr;
+	}
+}

includes/post.php

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+<?php
+
+/**
+ * Adds microformats2 support to your posts
+ *
+ */
+class UF2_Post {
+	/**
+	 * Initialize plugin
+	 */
+	public function __construct() {
+		add_filter( 'post_class', array( $this, 'post_classes' ) );
+		add_filter( 'body_class', array( $this, 'body_classes' ) );
+		add_filter( 'the_title', array( $this, 'the_title' ), 99, 1 );
+		// The priority ensures that the content and not anything added dynamically by another plugin.
+		add_filter( 'the_content', array( $this, 'the_post' ), -1, 1 );
+		add_filter( 'the_excerpt', array( $this, 'the_excerpt' ), -1, 1 );
+
+		add_filter( 'date_i18n', array( $this, 'fix_c_time_format' ), 10, 3 );
+	}
+
+	function fix_c_time_format( $date, $format, $timestamp ) {
+	    if ( 'c' == $format )
+		            $date = date_i18n( DATE_W3C, $timestamp );
+
+	        return $date;
+	}
+
+	/**
+	 * Adds custom classes to the array of post classes.
+	 */
+	public static function post_classes( $classes ) {
+		$classes = array_diff( $classes, array( 'hentry' ) );
+		if ( ! is_singular() ) {
+			if ( 'page' !== get_post_type() ) {
+				// Adds a class for microformats v2
+				$classes[] = 'h-entry';
+				// add hentry to the same tag as h-entry
+				$classes[] = 'hentry';
+			}
+		}
+		return $classes;
+	}
+
+	/**
+	 * Adds custom classes to the array of body classes.
+	 */
+	public static function body_classes( $classes ) {
+		// Adds a class of hfeed to non-singular pages.
+		if ( ! is_singular() ) {
+			$classes[] = 'hfeed';
+			$classes[] = 'h-feed';
+		} else {
+			if ( 'page' !== get_post_type() ) {
+				$classes[] = 'hentry';
+				$classes[] = 'h-entry';
+			}
+		}
+		return array_unique( $classes );
+	}
+
+	/**
+	 * Adds microformats v2 support to the post title.
+	 */
+	public static function the_title( $title ) {
+		if ( ! is_admin() && in_the_loop() ) {
+			return "<span class='p-name'>$title</span>";
+		}
+
+		return $title;
+	}
+
+	/**
+	 * Adds microformats v2 support to the post.
+	 */
+	public static function the_post( $post ) {
+		if ( ! is_admin() ) {
+			return "<div class='e-content'>$post</div>";
+		}
+
+		return $post;
+	}
+
+	/**
+	 * Adds microformats v2 support to the excerpt.
+	 */
+	public static function the_excerpt( $post ) {
+		if ( ! is_admin() ) {
+			return "<div class='e-content p-summary'>$post</div>";
+		}
+
+		return $post;
+	}
+}

languages/uf2.pot

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+# Copyright (C) 2017 pfefferle
+# This file is distributed under the same license as the uf2 package.
+msgid ""
+msgstr ""
+"Project-Id-Version: uf2 1.0.0-dev\n"
+"Report-Msgid-Bugs-To: https://wordpress.org/support/plugin/uf2\n"
+"POT-Creation-Date: 2017-06-17 18:57:11+00:00\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=utf-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"PO-Revision-Date: 2017-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"X-Generator: grunt-wp-i18n 0.5.4\n"
+
+#. Plugin Name of the plugin/theme
+msgid "uf2"
+msgstr ""
+
+#. Plugin URI of the plugin/theme
+msgid "https://github.com/pfefferle/wordpress-uf2"
+msgstr ""
+
+#. Description of the plugin/theme
+msgid "Adds microformats2 support to your WordPress theme"
+msgstr ""
+
+#. Author of the plugin/theme
+msgid "pfefferle"
+msgstr ""
+
+#. Author URI of the plugin/theme
+msgid "http://notizblog.org/"
+msgstr ""

package.json

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+{
+  "name": "wordpress-uf2",
+  "description": "Microformats 2 for WordPress!",
+  "dependencies": {
+    "grunt": "^0.4.5"
+  },
+  "devDependencies": {
+    "grunt": "^0.4.5",
+    "grunt-wp-deploy": "^1.0.3",
+    "grunt-wp-i18n": "^0.5.0",
+    "grunt-wp-readme-to-markdown": "^0.8.0"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/pfefferle/wordpress-uf2.git"
+  },
+  "keywords": [
+    "wordpress",
+    "mf2",
+    "microformats2",
+    "indieweb"
+  ],
+  "author": "Matthias Pfefferle",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/pfefferle/wordpress-uf2/issues"
+  },
+  "homepage": "https://github.com/pfefferle/wordpress-uf2"
+}