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Multi search match highlight 

Added multiple previews, configurable by site.search.previews
Improved search-data.json
This commit is contained in:
Silvio Giebl 2020-01-02 11:55:38 +01:00
parent 74681aeb21
commit f1c306c814
5 changed files with 136 additions and 63 deletions
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3
_config.yml
View File

@ -30,6 +30,9 @@ search:
# Split documents into sections that can be individually searched
# Supports 1 - 6, default: 2
heading_level: 2
# Maximum amount of previews to display
# Default: 3
previews: 3
# Maximum amount of words to display before a matched word in the preview
# Default: 5
preview_words_before: 5

6
_sass/search.scss
View File

@ -183,7 +183,7 @@
@include fs-1;
}
.search-result-preview {
.search-result-previews {
display: block;
padding-top: $sp-2;
padding-bottom: $sp-2;
@ -203,6 +203,10 @@
}
}
.search-result-preview + .search-result-preview {
margin-top: $sp-1;
}
.search-result-highlight {
font-weight: bold;
}

175
assets/js/just-the-docs.js
View File

@ -188,7 +188,7 @@ function searchLoaded(index, docs) {
resultTitle.appendChild(resultDoc);
var resultDocSpan = document.createElement('span');
resultDocSpan.innerText = doc.doc;
resultDocSpan.innerHTML = doc.doc;
resultDoc.appendChild(resultDocSpan);
var resultDocOrSection = resultDocSpan;
@ -196,74 +196,119 @@ function searchLoaded(index, docs) {
resultDoc.classList.add('search-result-doc-parent');
var resultSection = document.createElement('div');
resultSection.classList.add('search-result-section');
resultSection.innerText = doc.title;
resultSection.innerHTML = doc.title;
resultTitle.appendChild(resultSection);
resultDocOrSection = resultSection;
}
var metadata = result.matchData.metadata;
var contentFound = false;
var titlePositions = [];
var contentPositions = [];
for (var j in metadata) {
if (metadata[j].title) {
var position = metadata[j].title.position[0];
var start = position[0];
var end = position[0] + position[1];
resultDocOrSection.innerHTML = doc.title.substring(0, start) + '<span class="search-result-highlight">' + doc.title.substring(start, end) + '</span>' + doc.title.substring(end, doc.title.length);
var meta = metadata[j];
if (meta.title) {
var positions = meta.title.position;
for (var k in positions) {
titlePositions.push(positions[k]);
}
}
if (metadata[j].content && !contentFound) {
contentFound = true;
if (meta.content) {
var positions = meta.content.position;
for (var k in positions) {
var position = positions[k];
var previewStart = position[0];
var previewEnd = position[0] + position[1];
var ellipsesBefore = true;
var ellipsesAfter = true;
for (var k = 0; k < {{ site.search.preview_words_before | default: 5 }}; k++) {
var nextSpace = doc.content.lastIndexOf(' ', previewStart - 2);
var nextDot = doc.content.lastIndexOf('. ', previewStart - 2);
if ((nextDot >= 0) && (nextDot > nextSpace)) {
previewStart = nextDot + 1;
ellipsesBefore = false;
break;
}
if (nextSpace < 0) {
previewStart = 0;
ellipsesBefore = false;
break;
}
previewStart = nextSpace + 1;
}
for (var k = 0; k < {{ site.search.preview_words_after | default: 10 }}; k++) {
var nextSpace = doc.content.indexOf(' ', previewEnd + 1);
var nextDot = doc.content.indexOf('. ', previewEnd + 1);
if ((nextDot >= 0) && (nextDot < nextSpace)) {
previewEnd = nextDot;
ellipsesAfter = false;
break;
}
if (nextSpace < 0) {
previewEnd = doc.content.length;
ellipsesAfter = false;
break;
}
previewEnd = nextSpace;
}
contentPositions.push({
highlight: position,
previewStart: previewStart, previewEnd: previewEnd,
ellipsesBefore: ellipsesBefore, ellipsesAfter: ellipsesAfter
});
}
}
}
var position = metadata[j].content.position[0];
var start = position[0];
var end = position[0] + position[1];
var previewStart = start;
var previewEnd = end;
var ellipsesBefore = true;
var ellipsesAfter = true;
for (var k = 0; k < {{ site.search.preview_words_before | default: 5 }}; k++) {
var nextSpace = doc.content.lastIndexOf(' ', previewStart - 2);
var nextDot = doc.content.lastIndexOf('. ', previewStart - 2);
if ((nextDot >= 0) && (nextDot > nextSpace)) {
previewStart = nextDot + 1;
ellipsesBefore = false;
break;
if (titlePositions.length > 0) {
titlePositions.sort(function(p1, p2){ return p1[0] - p2[0] });
resultDocOrSection.innerHTML = '';
addHighlightedText(resultDocOrSection, doc.title, 0, doc.title.length, titlePositions);
}
if (contentPositions.length > 0) {
contentPositions.sort(function(p1, p2){ return p1.highlight[0] - p2.highlight[0] });
var contentPosition = contentPositions[0];
var previewPosition = {
highlight: [contentPosition.highlight],
previewStart: contentPosition.previewStart, previewEnd: contentPosition.previewEnd,
ellipsesBefore: contentPosition.ellipsesBefore, ellipsesAfter: contentPosition.ellipsesAfter
};
var previewPositions = [previewPosition];
for (var j = 1; j < contentPositions.length; j++) {
contentPosition = contentPositions[j];
if (previewPosition.previewEnd < contentPosition.previewStart) {
previewPosition = {
highlight: [contentPosition.highlight],
previewStart: contentPosition.previewStart, previewEnd: contentPosition.previewEnd,
ellipsesBefore: contentPosition.ellipsesBefore, ellipsesAfter: contentPosition.ellipsesAfter
}
if (nextSpace < 0) {
previewStart = 0;
ellipsesBefore = false;
break;
}
previewStart = nextSpace + 1;
}
for (var k = 0; k < {{ site.search.preview_words_after | default: 10 }}; k++) {
var nextSpace = doc.content.indexOf(' ', previewEnd + 1);
var nextDot = doc.content.indexOf('. ', previewEnd + 1);
if ((nextDot >= 0) && (nextDot < nextSpace)) {
previewEnd = nextDot;
ellipsesAfter = false;
break;
}
if (nextSpace < 0) {
previewEnd = doc.content.length;
ellipsesAfter = false;
break;
}
previewEnd = nextSpace;
}
var preview = doc.content.substring(previewStart, start);
if (ellipsesBefore) {
preview = '... ' + preview;
}
preview += '<span class="search-result-highlight">' + doc.content.substring(start, end) + '</span>';
preview += doc.content.substring(end, previewEnd);
if (ellipsesAfter) {
preview += ' ...';
previewPositions.push(previewPosition);
} else {
previewPosition.highlight.push(contentPosition.highlight);
previewPosition.previewEnd = contentPosition.previewEnd;
previewPosition.ellipsesAfter = contentPosition.ellipsesAfter;
}
}
var resultPreviews = document.createElement('div');
resultPreviews.classList.add('search-result-previews');
resultLink.appendChild(resultPreviews);
var content = doc.content;
for (var j = 0; j < Math.min(previewPositions.length, {{ site.search.previews | default: 3 }}); j++) {
var position = previewPositions[j];
var resultPreview = document.createElement('div');
resultPreview.classList.add('search-result-preview');
resultPreview.innerHTML = preview;
resultLink.appendChild(resultPreview);
resultPreviews.appendChild(resultPreview);
if (position.ellipsesBefore) {
resultPreview.appendChild(document.createTextNode('... '));
}
addHighlightedText(resultPreview, content, position.previewStart, position.previewEnd, position.highlight);
if (position.ellipsesAfter) {
resultPreview.appendChild(document.createTextNode(' ...'));
}
}
}
@ -275,6 +320,24 @@ function searchLoaded(index, docs) {
{%- endif %}
}
}
function addHighlightedText(parent, text, start, end, positions) {
var index = start;
for (var i in positions) {
var position = positions[i];
var span = document.createElement('span');
span.innerHTML = text.substring(index, position[0]);
parent.appendChild(span);
index = position[0] + position[1];
var highlight = document.createElement('span');
highlight.classList.add('search-result-highlight');
highlight.innerHTML = text.substring(position[0], index);
parent.appendChild(highlight);
}
var span = document.createElement('span');
span.innerHTML = text.substring(index, end);
parent.appendChild(span);
}
}
jtd.addEvent(searchInput, 'focus', function(){

12
assets/js/zzzz-search-data.json
View File

@ -34,9 +34,9 @@ permalink: /assets/js/search-data.json
{%- endif -%}
{%- unless i == 0 -%},{%- endunless -%}
"{{ i }}": {
"doc": "{{ page.title | escape_once }}",
"title": "{{ title | escape_once }}",
"content": "{{ content | replace: '</h', ' . </h' | replace: '<hr', ' . <hr' | replace: '</p', ' . </p' | replace: '<ul', ' . <ul' | replace: '</ul', ' . </ul' | replace: '<ol', ' . <ol' | replace: '</ol', ' . </ol' | replace: '</tr', ' . </tr' | replace: '<li', ' | <li' | replace: '</li', ' | </li' | replace: '</td', ' | </td' | replace: '<td', ' | <td' | replace: '</th', ' | </th' | replace: '<th', ' | <th' | strip_html | escape_once | remove: 'Table of contents' | replace: '\', '&bsol;' | replace: ' . . . ', ' . ' | replace: ' . . ', ' . ' | normalize_whitespace | replace: '| |', '|' }}",
"doc": {{ page.title | jsonify }},
"title": {{ title | jsonify }},
"content": {{ content | replace: '</h', ' . </h' | replace: '<hr', ' . <hr' | replace: '</p', ' . </p' | replace: '<ul', ' . <ul' | replace: '</ul', ' . </ul' | replace: '<ol', ' . <ol' | replace: '</ol', ' . </ol' | replace: '</tr', ' . </tr' | replace: '<li', ' | <li' | replace: '</li', ' | </li' | replace: '</td', ' | </td' | replace: '<td', ' | <td' | replace: '</th', ' | </th' | replace: '<th', ' | <th' | strip_html | remove: 'Table of contents' | normalize_whitespace | replace: '. . .', '.' | replace: '. .', '.' | replace: '| |', '|' | append: ' ' | jsonify }},
"url": "{{ url | absolute_url }}",
"relUrl": "{{ url }}"
}
@ -45,9 +45,9 @@ permalink: /assets/js/search-data.json
{%- unless title_found -%}
{%- unless i == 0 -%},{%- endunless -%}
"{{ i }}": {
"doc": "{{ page.title | escape_once }}",
"title": "{{ page.title | escape_once }}",
"content": "{{ parts[0] | replace: '</h', ' . </h' | replace: '<hr', ' . <hr' | replace: '</p', ' . </p' | replace: '<ul', ' . <ul' | replace: '</ul', ' . </ul' | replace: '<ol', ' . <ol' | replace: '</ol', ' . </ol' | replace: '</tr', ' . </tr' | replace: '<li', ' | <li' | replace: '</li', ' | </li' | replace: '</td', ' | </td' | replace: '<td', ' | <td' | replace: '</th', ' | </th' | replace: '<th', ' | <th' | strip_html | escape_once | remove: 'Table of contents' | replace: '\', '&bsol;' | replace: ' . . . ', ' . ' | replace: ' . . ', ' . ' | normalize_whitespace | replace: '| |', '|' }}",
"doc": {{ page.title | jsonify }},
"title": {{ page.title | jsonify }},
"content": {{ parts[0] | replace: '</h', ' . </h' | replace: '<hr', ' . <hr' | replace: '</p', ' . </p' | replace: '<ul', ' . <ul' | replace: '</ul', ' . </ul' | replace: '<ol', ' . <ol' | replace: '</ol', ' . </ol' | replace: '</tr', ' . </tr' | replace: '<li', ' | <li' | replace: '</li', ' | </li' | replace: '</td', ' | </td' | replace: '<td', ' | <td' | replace: '</th', ' | </th' | replace: '<th', ' | <th' | strip_html | remove: 'Table of contents' | normalize_whitespace | replace: '. . .', '.' | replace: '. .', '.' | replace: '| |', '|' | append: ' ' | jsonify }},
"url": "{{ page.url | absolute_url }}",
"relUrl": "{{ page.url }}"
}

3
docs/configuration.md
View File

@ -40,6 +40,9 @@ search:
# Split documents into sections that can be individually searched
# Supports 1 - 6, default: 2
heading_level: 2
# Maximum amount of previews to display
# Default: 3
previews: 3
# Maximum amount of words to display before a matched word in the preview
# Default: 5
preview_words_before: 5