GoogleFontsOptimizerUtils::buildFontsMarkupLinks() - Code Metrics - Inspection of "start pulling stuff out to see how to reduce compl..." - zytzagoo/wp-google-fonts-optimizer - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( e3de86...7a576b )

by zyt

created 2017-10-20 15:42 UTC

GoogleFontsOptimizerUtils::buildFontsMarkupLinks() A

↳ Parent: GoogleFontsOptimizerUtils

Complexity

Conditions	4
Paths	2

Size

Total Lines	14
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	10
CRAP Score	4

Importance

Changes

Metric	Value
cc	4
eloc	8
nc	2
nop	1
dl	0
loc	14
ccs	10
cts	10
cp	1
crap	4
rs	9.2
c	0
b	0
f	0

<?php

namespace ZWF;

class GoogleFontsOptimizerUtils
{
    /**
     * Replaces any occurences of un-encoded ampersands in the given string
     * with the value given in the `$amp` parameter (`&amp;` by default).
     *
     * @param string $url
     * @param string $amp
     *
     * @return string
     */
    public static function encodeUnencodedAmpersands($url, $amp = '&amp;')
    {
        $amp = trim($amp);
        if (empty($amp)) {
            $amp = '&amp;';
        }

        return preg_replace('/&(?!#?\w+;)/', $amp, $url);
    }

    /**
     * Turns protocol-relative or non-https URLs into their https versions.
     *
     * @param string $link
     *
     * @return string
     */
    public static function httpsify($link)
    {
        $is_protocol_relative = ('/' === $link{0} && '/' === $link{1});

        if ($is_protocol_relative) {
            $link = 'https:' . $link;
        } else {
            $link = preg_replace('/^(https?):\/\//mi', '', $link);
            $link = 'https://' . $link;
        }

        return $link;
    }

    /**
     * Returns true if a given url is a google font url.
     *
     * @param string $url
     *
     * @return bool
     */
    public static function isGoogleWebFontUrl($url)
    {
        return (substr_count($url, 'fonts.googleapis.com/css') > 0);
    }

    /**
     * Returns true if given `$string` contains the HTML5 doctype.
     *
     * @param string $string
     *
     * @return bool
     */
    public static function hasHtml5Doctype($string)
    {
        return (preg_match('/^<!DOCTYPE.+html>/i', $string) > 0);
    }

    /**
     * Returns true when given `$string` contains an XSL stylesheet element.
     *
     * @param string $string
     *
     * @return bool
     */
    public static function hasXslStylesheet($string)
    {
        return (false !== stripos($string, '<xsl:stylesheet'));
    }

    /**
     * Returns true when given `$string` contains the beginnings of an `<html>` tag.
     *
     * @param string $string
     * @return bool
     */
    public static function hasHtmlTag($string)
    {
        return (false !== stripos($string, '<html'));
    }

    /**
     * Given a key => value map in which the value is a single string or
     * a list of comma-separeted strings, it returns a new array with the
     * given keys, but the values are transformed into an array and any
     * potential duplicate values are removed.
     * If the $sort parameter is given, the list of values is sorted using
     * `sort()` and the $sort param is treated as a sort flag.
     *
     * @param array $data
     * @param bool|int $sort If false, no sorting, otherwise an int representing
     *                       sort flags. See http://php.net/sort
     *
     * @return array
     */
    public static function dedupValues(array $data, $sort = false)
    {
        foreach ($data as $key => $values) {
            $parts = explode(',', $values);
            $parts = array_unique($parts);
            if (false !== $sort) {
                sort($parts, (int) $sort);
            }
            $data[$key] = $parts;
        }

        return $data;
    }

    /**
     * Given a "raw" getFontsArray(), deduplicate and sort the data
     * and return a new array with three keys:
     * - the first key contains sorted list of fonts/sizes
     * - the second key contains the global list of requested subsets
     * - the third key contains the map of requested font names and their subsets
     *
     * @param array $fonts_array
     *
     * @return array
     */
    public static function consolidateFontsArray(array $fonts_array)
    {
        $fonts         = [];
        $subsets       = [];
        $fonts_to_subs = [];

        foreach ($fonts_array['complete'] as $font_string) {
            $parts = explode(':', $font_string);
            $name  = $parts[0];
            $size  = isset($parts[1]) ? $parts[1] : '';

            if (isset($fonts[$name])) {
                // If a name already exists, append the new size
                $fonts[$name] .= ',' . $size;
            } else {
                // Create a new key for the name and size
                $fonts[$name] = $size;
            }

            // Check if subset is specified as the third element
            if (isset($parts[2])) {
                $subset = $parts[2];
                // Collect all the subsets defined into a single array
                $elements = explode(',', $subset);
                foreach ($elements as $sub) {
                    $subsets[] = $sub;
                }
                // Keeping a separate map of names => requested subsets for
                // webfontloader purposes
                if (isset($fonts_to_subs[$name])) {
                    $fonts_to_subs[$name] .= ',' . $subset;
                } else {
                    $fonts_to_subs[$name] = $subset;
                }
            }
        }

        // Remove duplicate subsets
        $subsets = array_unique($subsets);

        // Sanitize and de-dup name/sizes pairs
        $fonts = self::dedupValues($fonts, SORT_REGULAR); // sorts values (sizes)

        // Sorts by font names alphabetically
        ksort($fonts);

        // Sanitize and de-dup $fonts_to_subs mapping
        $fonts_to_subs = self::dedupValues($fonts_to_subs, false); // no sort

        return [$fonts, $subsets, $fonts_to_subs];
    }

    /**
     * Given data from `getFontsArray()` builds `<link rel="stylesheet">` markup.
     *
     * @param array $fonts
     *
     * @return string
     */
    public static function buildFontsMarkupLinks(array $fonts)
    {
        $font_url = self::buildGoogleFontsUrlFromFontsArray($fonts);
        $href     = self::encodeUnencodedAmpersands($font_url);
        $markup   = '<link rel="stylesheet" type="text/css" href="' . $href . '">';

        if (isset($fonts['partial']) && is_array($fonts['partial']['url'])) {
            foreach ($fonts['partial']['url'] as $other) {
                $markup .= '<link rel="stylesheet" type="text/css"';
                $markup .= ' href="' . self::encodeUnencodedAmpersands($other) . '">';
            }
        }

        return $markup;
    }

    /**
     * Given data from `GoogleFontsOptimizer::getFontsArray()` builds
     * WebFont loader script markup.
     *
     * @param array $fonts
     *
     * @return string
     */
    public static function buildFontsMarkupScript(array $fonts)
    {
        $families_array = [];

        list($names, $subsets, $mapping) = self::consolidateFontsArray($fonts);
        foreach ($names as $name => $sizes) {
            $family = $name . ':' . implode(',', $sizes);
            if (isset($mapping[$name])) {
                $family .= ':' . implode(',', $mapping[$name]);
            }
            $families_array[] = $family;
        }
        $families = "'" . implode("', '", $families_array) . "'";

        // Load 'text' requests with the "custom" module
        $custom = '';
        if (isset($fonts['partial'])) {
            $custom  = ",\n    custom: {\n";
            $custom .= "        families: [ '" . implode("', '", $fonts['partial']['name']) . "' ],\n";
            $custom .= "        urls: [ '" . implode("', '", $fonts['partial']['url']) . "' ]\n";
            $custom .= '    }';
        }

        $markup = <<<MARKUP
<script type="text/javascript">
WebFontConfig = {
    google: { families: [ {$families} ] }{$custom}
};
(function() {
    var wf = document.createElement('script');
    wf.src = ('https:' == document.location.protocol ? 'https' : 'http') +
        '://ajax.googleapis.com/ajax/libs/webfont/1/webfont.js';
    wf.type = 'text/javascript';
    wf.async = 'true';
    var s = document.getElementsByTagName('script')[0];
    s.parentNode.insertBefore(wf, s);
})();
</script>
MARKUP;

        return $markup;
    }

    /**
     * Builds a combined Google Font URL for multiple font families/subsets.
     *
     * Usage examples:
     * ```
     * ZWF\GoogleFontsOptimizerUtils::buildGoogleFontsUrl(
     *     [
     *         'Open Sans' => [ '400', '400italic', '700', '700italic' ],
     *         'Ubuntu'    => [ '400', '400italic', '700', '700italic' ],
     *     ),
     *     [ 'latin', 'latin-ext' ]
     * );
     * ```
     *
     * or
     *
     * ```
     * ZWF\GoogleFontsOptimizerUtils::buildGoogleFontsUrl(
     *     [
     *         'Open Sans' => '400,400italic,700,700italic',
     *         'Ubuntu'    => '400,400italic,700,700italic',
     *     ],
     *     'latin,latin-ext'
     * );
     * ```
     *
     * @param array $fonts
     * @param array|string $subsets
     *
     * @return null|string
     */
    public static function buildGoogleFontsUrl(array $fonts, $subsets = [])
    {
        $base_url  = 'https://fonts.googleapis.com/css';
        $font_args = [];
        $family    = [];

        foreach ($fonts as $font_name => $font_weight) {
            if (is_array($font_weight)) {
                $font_weight = implode(',', $font_weight);
            }
            // Trimming end colon handles edge case of being given an empty $font_weight
            $family[] = trim(trim($font_name) . ':' . trim($font_weight), ':');
        }

        $font_args['family'] = implode('|', $family);

        if (! empty($subsets)) {
            if (is_array($subsets)) {
                $subsets = array_unique($subsets);
                $subsets = implode(',', $subsets);
            }
            $font_args['subset'] = trim($subsets);
        }

        $url = $base_url . '?' . http_build_query($font_args);

        return $url;
    }

    /**
     * Creates a single google fonts url from data returned by `getFontsArray()`.
     *
     * @param array $fonts_array
     *
     * @return string
     */
    public static function buildGoogleFontsUrlFromFontsArray(array $fonts_array)
    {
        list($fonts, $subsets) = self::consolidateFontsArray($fonts_array);

        return self::buildGoogleFontsUrl($fonts, $subsets);
    }
}


1		<?php
2
3		namespace ZWF;
4
5		class GoogleFontsOptimizerUtils
6		{
7		/**
8		* Replaces any occurences of un-encoded ampersands in the given string
9		* with the value given in the `$amp` parameter (`&` by default).
10		*
11		* @param string $url
12		* @param string $amp
13		*
14		* @return string
15		*/
16	7	public static function encodeUnencodedAmpersands($url, $amp = '&')
17	7	{
18	7	$amp = trim($amp);
19	7	if (empty($amp)) {
20	3	$amp = '&';
21		}
22
23	7	return preg_replace('/&(?!#?\w+;)/', $amp, $url);
24		}
25
26		/**
27		* Turns protocol-relative or non-https URLs into their https versions.
28		*
29		* @param string $link
30		*
31		* @return string
32		*/
33	6	public static function httpsify($link)
34	6	{
35	6	$is_protocol_relative = ('/' === $link{0} && '/' === $link{1});
36
37	6	if ($is_protocol_relative) {
38	1	$link = 'https:' . $link;
39		} else {
40	5	$link = preg_replace('/^(https?):\/\//mi', '', $link);
41	5	$link = 'https://' . $link;
42		}
43
44	6	return $link;
45		}
46
47		/**
48		* Returns true if a given url is a google font url.
49		*
50		* @param string $url
51		*
52		* @return bool
53		*/
54	12	public static function isGoogleWebFontUrl($url)
55	12	{
56	12	return (substr_count($url, 'fonts.googleapis.com/css') > 0);
57		}
58
59		/**
60		* Returns true if given `$string` contains the HTML5 doctype.
61		*
62		* @param string $string
63		*
64		* @return bool
65		*/
66	2	public static function hasHtml5Doctype($string)
67	2	{
68	2	return (preg_match('/^<!DOCTYPE.+html>/i', $string) > 0);
69		}
70
71		/**
72		* Returns true when given `$string` contains an XSL stylesheet element.
73		*
74		* @param string $string
75		*
76		* @return bool
77		*/
78	2	public static function hasXslStylesheet($string)
79	2	{
80	2	return (false !== stripos($string, '<xsl:stylesheet'));
81		}
82
83		/**
84		* Returns true when given `$string` contains the beginnings of an `<html>` tag.
85		*
86		* @param string $string
87		* @return bool
88		*/
89	2	public static function hasHtmlTag($string)
90	2	{
91	2	return (false !== stripos($string, '<html'));
92		}
93
94		/**
95		* Given a key => value map in which the value is a single string or
96		* a list of comma-separeted strings, it returns a new array with the
97		* given keys, but the values are transformed into an array and any
98		* potential duplicate values are removed.
99		* If the $sort parameter is given, the list of values is sorted using
100		* `sort()` and the $sort param is treated as a sort flag.
101		*
102		* @param array $data
103		* @param bool\|int $sort If false, no sorting, otherwise an int representing
104		* sort flags. See http://php.net/sort
105		*
106		* @return array
107		*/
108	5	public static function dedupValues(array $data, $sort = false)
109	5	{
110	5	foreach ($data as $key => $values) {
111	5	$parts = explode(',', $values);
112	5	$parts = array_unique($parts);
113	5	if (false !== $sort) {
114	5	sort($parts, (int) $sort);
115		}
116	5	$data[$key] = $parts;
117		}
118
119	5	return $data;
120		}
121
122		/**
123		* Given a "raw" getFontsArray(), deduplicate and sort the data
124		* and return a new array with three keys:
125		* - the first key contains sorted list of fonts/sizes
126		* - the second key contains the global list of requested subsets
127		* - the third key contains the map of requested font names and their subsets
128		*
129		* @param array $fonts_array
130		*
131		* @return array
132		*/
133	5	public static function consolidateFontsArray(array $fonts_array)
134	5	{
135	5	$fonts = [];
136	5	$subsets = [];
137	5	$fonts_to_subs = [];
138
139	5	foreach ($fonts_array['complete'] as $font_string) {
140	5	$parts = explode(':', $font_string);
141	5	$name = $parts[0];
142	5	$size = isset($parts[1]) ? $parts[1] : '';
143
144	5	if (isset($fonts[$name])) {
145		// If a name already exists, append the new size
146	1	$fonts[$name] .= ',' . $size;
147		} else {
148		// Create a new key for the name and size
149	5	$fonts[$name] = $size;
150		}
151
152		// Check if subset is specified as the third element
153	5	if (isset($parts[2])) {
154	4	$subset = $parts[2];
155		// Collect all the subsets defined into a single array
156	4	$elements = explode(',', $subset);
157	4	foreach ($elements as $sub) {
158	4	$subsets[] = $sub;
159		}
160		// Keeping a separate map of names => requested subsets for
161		// webfontloader purposes
162	4	if (isset($fonts_to_subs[$name])) {
163	1	$fonts_to_subs[$name] .= ',' . $subset;
164		} else {
165	5	$fonts_to_subs[$name] = $subset;
166		}
167		}
168		}
169
170		// Remove duplicate subsets
171	5	$subsets = array_unique($subsets);
172
173		// Sanitize and de-dup name/sizes pairs
174	5	$fonts = self::dedupValues($fonts, SORT_REGULAR); // sorts values (sizes)
175
176		// Sorts by font names alphabetically
177	5	ksort($fonts);
178
179		// Sanitize and de-dup $fonts_to_subs mapping
180	5	$fonts_to_subs = self::dedupValues($fonts_to_subs, false); // no sort
181
182	5	return [$fonts, $subsets, $fonts_to_subs];
183		}
184
185		/**
186		* Given data from `getFontsArray()` builds `<link rel="stylesheet">` markup.
187		*
188		* @param array $fonts
189		*
190		* @return string
191		*/
192	2	public static function buildFontsMarkupLinks(array $fonts)
193	2	{
194	2	$font_url = self::buildGoogleFontsUrlFromFontsArray($fonts);
195	2	$href = self::encodeUnencodedAmpersands($font_url);
196	2	$markup = '<link rel="stylesheet" type="text/css" href="' . $href . '">';
197
198	2	if (isset($fonts['partial']) && is_array($fonts['partial']['url'])) {
199	1	foreach ($fonts['partial']['url'] as $other) {
200	1	$markup .= '<link rel="stylesheet" type="text/css"';
201	1	$markup .= ' href="' . self::encodeUnencodedAmpersands($other) . '">';
202		}
203		}
204
205	2	return $markup;
206		}
207
208		/**
209		* Given data from `GoogleFontsOptimizer::getFontsArray()` builds
210		* WebFont loader script markup.
211		*
212		* @param array $fonts
213		*
214		* @return string
215		*/
216	2	public static function buildFontsMarkupScript(array $fonts)
217	2	{
218	2	$families_array = [];
219
220	2	list($names, $subsets, $mapping) = self::consolidateFontsArray($fonts);
221	2	foreach ($names as $name => $sizes) {
222	2	$family = $name . ':' . implode(',', $sizes);
223	2	if (isset($mapping[$name])) {
224	2	$family .= ':' . implode(',', $mapping[$name]);
225		}
226	2	$families_array[] = $family;
227		}
228	2	$families = "'" . implode("', '", $families_array) . "'";
229
230		// Load 'text' requests with the "custom" module
231	2	$custom = '';
232	2	if (isset($fonts['partial'])) {
233	1	$custom = ",\n custom: {\n";
234	1	$custom .= " families: [ '" . implode("', '", $fonts['partial']['name']) . "' ],\n";
235	1	$custom .= " urls: [ '" . implode("', '", $fonts['partial']['url']) . "' ]\n";
236	1	$custom .= ' }';
237		}
238
239		$markup = <<<MARKUP
240		<script type="text/javascript">
241		WebFontConfig = {
242	2	google: { families: [ {$families} ] }{$custom}
243		};
244		(function() {
245		var wf = document.createElement('script');
246		wf.src = ('https:' == document.location.protocol ? 'https' : 'http') +
247		'://ajax.googleapis.com/ajax/libs/webfont/1/webfont.js';
248		wf.type = 'text/javascript';
249		wf.async = 'true';
250		var s = document.getElementsByTagName('script')[0];
251		s.parentNode.insertBefore(wf, s);
252		})();
253		</script>
254		MARKUP;
255
256	2	return $markup;
257		}
258
259		/**
260		* Builds a combined Google Font URL for multiple font families/subsets.
261		*
262		* Usage examples:
263		* ```
264		* ZWF\GoogleFontsOptimizerUtils::buildGoogleFontsUrl(
265		* [
266		* 'Open Sans' => [ '400', '400italic', '700', '700italic' ],
267		* 'Ubuntu' => [ '400', '400italic', '700', '700italic' ],
268		* ),
269		* [ 'latin', 'latin-ext' ]
270		* );
271		* ```
272		*
273		* or
274		*
275		* ```
276		* ZWF\GoogleFontsOptimizerUtils::buildGoogleFontsUrl(
277		* [
278		* 'Open Sans' => '400,400italic,700,700italic',
279		* 'Ubuntu' => '400,400italic,700,700italic',
280		* ],
281		* 'latin,latin-ext'
282		* );
283		* ```
284		*
285		* @param array $fonts
286		* @param array\|string $subsets
287		*
288		* @return null\|string
289		*/
290	6	public static function buildGoogleFontsUrl(array $fonts, $subsets = [])
291	6	{
292	6	$base_url = 'https://fonts.googleapis.com/css';
293	6	$font_args = [];
294	6	$family = [];
295
296	6	foreach ($fonts as $font_name => $font_weight) {
297	6	if (is_array($font_weight)) {
298	6	$font_weight = implode(',', $font_weight);
299		}
300		// Trimming end colon handles edge case of being given an empty $font_weight
301	6	$family[] = trim(trim($font_name) . ':' . trim($font_weight), ':');
302		}
303
304	6	$font_args['family'] = implode('\|', $family);
305
306	6	if (! empty($subsets)) {
307	5	if (is_array($subsets)) {
308	4	$subsets = array_unique($subsets);
309	4	$subsets = implode(',', $subsets);
310		}
311	5	$font_args['subset'] = trim($subsets);
312		}
313
314	6	$url = $base_url . '?' . http_build_query($font_args);
315
316	6	return $url;
317		}
318
319		/**
320		* Creates a single google fonts url from data returned by `getFontsArray()`.
321		*
322		* @param array $fonts_array
323		*
324		* @return string
325		*/
326	3	public static function buildGoogleFontsUrlFromFontsArray(array $fonts_array)
327	3	{
328	3	list($fonts, $subsets) = self::consolidateFontsArray($fonts_array);
329
330	3	return self::buildGoogleFontsUrl($fonts, $subsets);
331		}
332		}
333

zytzagoo / wp-google-fonts-optimizer

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