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Emoji: Use SVG in supported browsers

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Use SVG images in supporting browsers, otherwise fall back to PNG images. Add the filters `emoji_svg_url` and `emoji_svg_ext`.

Introduces unit tests to check the Emoji CDN filters.

Fixes #36525


git-svn-id: https://develop.svn.wordpress.org/trunk@37471 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Peter Wilson
2016-05-20 06:02:55 +00:00
parent 8a779ede82
commit 761dde5ee9
3 changed files with 131 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
src/wp-includes/formatting.php
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@@ -4517,12 +4517,12 @@ img.emoji {
}
/**
* Print the inline Emoji detection script if it is not already printed.
*
* @global string $wp_version
* @since 4.2.0
* @staticvar bool $printed
*/
function print_emoji_detection_script() {
global $wp_version;
static $printed = false;
if ( $printed ) {
@@ -4531,24 +4531,57 @@ function print_emoji_detection_script() {
$printed = true;
_print_emoji_detection_script();
}
/**
* Print inline Emoji dection script
*
* @ignore
* @since 4.6.0
* @access private
*
* @global string $wp_version
*/
function _print_emoji_detection_script() {
global $wp_version;
$settings = array(
/**
* Filter the URL where emoji images are hosted.
* Filter the URL where emoji png images are hosted.
*
* @since 4.2.0
*
* @param string The emoji base URL.
* @param string The emoji base URL for png images.
*/
'baseUrl' => apply_filters( 'emoji_url', 'https://s.w.org/images/core/emoji/72x72/' ),
/**
* Filter the extension of the emoji files.
* Filter the extension of the emoji png files.
*
* @since 4.2.0
*
* @param string The emoji extension. Default .png.
* @param string The emoji extension for png files. Default .png.
*/
'ext' => apply_filters( 'emoji_ext', '.png' ),
/**
* Filter the URL where emoji SVG images are hosted.
*
* @since 4.2.0
*
* @param string The emoji base URL for svg images.
*/
'svgUrl' => apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/svg/' ),
/**
* Filter the extension of the emoji SVG files.
*
* @since 4.2.0
*
* @param string The emoji extension for svg files. Default .svg.
*/
'svgExt' => apply_filters( 'emoji_svg_ext', '.svg' ),
);
$version = 'ver=' . $wp_version;