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bug #156 Fix the TOC generation with unique links (javiereguiluz)
This PR was squashed before being merged into the main branch. Discussion ---------- Fix the TOC generation with unique links Still WIP. It fixes #155. I can't find any way of getting the `id` attributes of headings without changing the vendor dependencies ... so this proposes to just parse the generated HTML file and extract the information from it. Commits ------- 87859d7 Fix the TOC generation with unique links
2 parents e74e0c6 + 87859d7 commit f34eaab

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7 files changed

+122
-29
lines changed

7 files changed

+122
-29
lines changed

‎src/DocsKernel.php‎

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Original file line numberDiff line numberDiff line change
@@ -20,6 +20,7 @@
2020
use SymfonyDocsBuilder\Listener\AdmonitionListener;
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use SymfonyDocsBuilder\Listener\AssetsCopyListener;
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use SymfonyDocsBuilder\Listener\CopyImagesListener;
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use SymfonyDocsBuilder\Listener\DuplicatedHeaderIdListener;
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class DocsKernel extends Kernel
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{
@@ -49,6 +50,11 @@ private function initializeListeners(EventManager $eventManager, ErrorManager $e
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new AdmonitionListener()
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);
5152

53+
$eventManager->addEventListener(
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PreParseDocumentEvent::PRE_PARSE_DOCUMENT,
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new DuplicatedHeaderIdListener()
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);
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$eventManager->addEventListener(
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PreNodeRenderEvent::PRE_NODE_RENDER,
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new CopyImagesListener($this->buildConfig, $errorManager)

‎src/Generator/JsonGenerator.php‎

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@@ -69,7 +69,7 @@ public function generateJson(string $masterDocument = 'index'): array
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$crawler = new Crawler(file_get_contents($this->buildConfig->getOutputDir().'/'.$filename.'.html'));
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// happens when some doc is a partial included in other doc an it doesn't have any titles
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$toc = false === current($metaEntry->getTitles()) ? [] : $this->generateToc($metaEntry, current($metaEntry->getTitles())[1]);
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$toc = $this->generateToc($metaEntry, $crawler);
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$next = $this->determineNext($parserFilename, $flattenedTocTree, $masterDocument);
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$prev = $this->determinePrev($parserFilename, $flattenedTocTree);
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$data = [
@@ -102,26 +102,35 @@ public function setOutput(SymfonyStyle $output)
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$this->output = $output;
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}
104104

105-
private function generateToc(MetaEntry $metaEntry, ?array $titles, int $level = 1): array
105+
private function generateToc(MetaEntry $metaEntry, Crawler $crawler): array
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{
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if (null === $titles) {
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return [];
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$flatTocTree = [];
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109+
foreach ($crawler->filter('h2, h3') as $heading) {
110+
$headerId = $heading->getAttribute('id') ?? Environment::slugify($heading->textContent);
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// this tocTree stores items sequentially (h2, h2, h3, h3, h2, h3, etc.)
113+
$flatTocTree[] = [
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'level' => 'h2' === $heading->tagName ? 1 : 2,
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'url' => sprintf('%s#%s', $metaEntry->getUrl(), $headerId),
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'page' => u($metaEntry->getUrl())->beforeLast('.html')->toString(),
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'fragment' => $headerId,
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'title' => $heading->textContent,
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'children' => [],
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];
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}
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111-
$tocTree = [];
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113-
foreach ($titles as $title) {
114-
$tocTree[] = [
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'level' => $level,
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'url' => sprintf('%s#%s', $metaEntry->getUrl(), Environment::slugify($title[0])),
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'page' => u($metaEntry->getUrl())->beforeLast('.html'),
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'fragment' => Environment::slugify($title[0]),
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'title' => $title[0],
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'children' => $this->generateToc($metaEntry, $title[1], $level + 1),
121-
];
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// this tocTree stores items nested by level (h2, h2[h3, h3], h2[h3], etc.)
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$nestedTocTree = [];
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foreach ($flatTocTree as $tocItem) {
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if (1 === $tocItem['level']) {
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$nestedTocTree[] = $tocItem;
128+
} else {
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$nestedTocTree[\count($nestedTocTree) - 1]['children'][] = $tocItem;
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}
122131
}
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124-
return $tocTree;
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return $nestedTocTree;
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}
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private function determineNext(string $parserFilename, array $flattenedTocTree): ?array

‎src/Listener/DuplicatedHeaderIdListener.php‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,25 @@
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<?php
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declare(strict_types=1);
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/*
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* This file is part of the Docs Builder package.
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* (c) Ryan Weaver <[email protected]>
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* For the full copyright and license information, please view the LICENSE
9+
* file that was distributed with this source code.
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*/
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12+
namespace SymfonyDocsBuilder\Listener;
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14+
use Doctrine\RST\Event\PreParseDocumentEvent;
15+
use SymfonyDocsBuilder\Renderers\TitleNodeRenderer;
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17+
final class DuplicatedHeaderIdListener
18+
{
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public function preParseDocument(PreParseDocumentEvent $event): void
20+
{
21+
// needed because we only need to handle duplicated headers within
22+
// the same file, not across all the files being generated
23+
TitleNodeRenderer::resetHeaderIdCache();
24+
}
25+
}

‎src/Renderers/TitleNodeRenderer.php‎

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Original file line numberDiff line numberDiff line change
@@ -32,6 +32,11 @@ public function __construct(TitleNode $titleNode, TemplateRenderer $templateRend
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$this->templateRenderer = $templateRenderer;
3333
}
3434

35+
public static function resetHeaderIdCache(): void
36+
{
37+
self::$idUsagesCountByFilename = [];
38+
}
39+
3540
public function render(): string
3641
{
3742
$filename = $this->titleNode->getEnvironment()->getCurrentFileName();

‎tests/IntegrationTest.php‎

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Original file line numberDiff line numberDiff line change
@@ -21,15 +21,6 @@
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class IntegrationTest extends AbstractIntegrationTest
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{
24-
public static function setUpBeforeClass(): void
25-
{
26-
$reflection = new \ReflectionClass(TitleNodeRenderer::class);
27-
$property = $reflection->getProperty('idUsagesCountByFilename');
28-
$property->setAccessible(true);
29-
30-
$property->setValue([]);
31-
}
32-
3324
/**
3425
* @dataProvider integrationProvider
3526
*/

‎tests/JsonIntegrationTest.php‎

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@@ -10,6 +10,7 @@
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namespace SymfonyDocsBuilder\Tests;
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1212
use SymfonyDocsBuilder\DocBuilder;
13+
use SymfonyDocsBuilder\Renderers\TitleNodeRenderer;
1314

1415
class JsonIntegrationTest extends AbstractIntegrationTest
1516
{
@@ -26,7 +27,7 @@ public function testJsonGeneration(string $filename, array $expectedData)
2627
$actualFileData = $fJsons[$filename];
2728
foreach ($expectedData as $key => $expectedKeyData) {
2829
$this->assertArrayHasKey($key, $actualFileData, sprintf('Missing key "%s" in file "%s"', $key, $filename));
29-
$this->assertSame($expectedData[$key], $actualFileData[$key], sprintf('Invalid data for key "%s" in file "%s"', $key, $filename));
30+
$this->assertSame($expectedKeyData, $actualFileData[$key], sprintf('Invalid data for key "%s" in file "%s"', $key, $filename));
3031
}
3132
}
3233

@@ -76,9 +77,53 @@ public function getJsonTests()
7677
'title' => 'Design',
7778
'toc_options' => [
7879
'maxDepth' => 2,
79-
'numVisibleItems' => 3,
80+
'numVisibleItems' => 5,
8081
'size' => 'md'
8182
],
83+
'toc' => [
84+
[
85+
'level' => 1,
86+
'url' => 'design.html#section-1',
87+
'page' => 'design',
88+
'fragment' => 'section-1',
89+
'title' => 'Section 1',
90+
'children' => [
91+
[
92+
'level' => 2,
93+
'url' => 'design.html#some-subsection',
94+
'page' => 'design',
95+
'fragment' => 'some-subsection',
96+
'title' => 'Some subsection',
97+
'children' => [],
98+
],
99+
[
100+
'level' => 2,
101+
'url' => 'design.html#some-subsection-1',
102+
'page' => 'design',
103+
'fragment' => 'some-subsection-1',
104+
'title' => 'Some subsection',
105+
'children' => [],
106+
],
107+
],
108+
],
109+
[
110+
'level' => 1,
111+
'url' => 'design.html#section-2',
112+
'page' => 'design',
113+
'fragment' => 'section-2',
114+
'title' => 'Section 2',
115+
'children' => [
116+
[
117+
'level' => 2,
118+
'url' => 'design.html#some-subsection-2',
119+
'page' => 'design',
120+
'fragment' => 'some-subsection-2',
121+
'title' => 'Some subsection',
122+
'children' => [],
123+
],
124+
],
125+
],
126+
],
82127
],
83128
];
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‎tests/fixtures/source/json/design.rst‎

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Original file line numberDiff line numberDiff line change
@@ -11,18 +11,30 @@ The toctree below should affects the next/prev. The
1111
first entry is effectively ignored, as it was already
1212
included by the toctree in index.rst (which is parsed first).
1313

14-
Subsection 1
15-
~~~~~~~~~~~~
14+
Some subsection
15+
~~~~~~~~~~~~~~~
1616

1717
This is a subsection of the first section. That's all.
1818

19+
Some subsection
20+
~~~~~~~~~~~~~~~
21+
22+
This sub-section uses the same title as before to test that the tool
23+
never generated two or more headings with the same ID.
24+
1925
Section 2
2026
---------
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2228
However, crud (which is ALSO included in the toctree in index.rst),
2329
WILL be read here, as the "crud" in index.rst has not been read
2430
yet (design comes first). Also, design/sub-page WILL be considered.
2531

32+
Some subsection
33+
~~~~~~~~~~~~~~~
34+
35+
This sub-section also uses the same title as in the previous section
36+
to test that the tool never generated two or more headings with the same ID.
37+
2638
.. toctree::
2739
:maxdepth: 1
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