136 lines
3.4 KiB
JavaScript
136 lines
3.4 KiB
JavaScript
require([
|
|
"gitbook",
|
|
"lodash"
|
|
], function(gitbook, _) {
|
|
var index = null;
|
|
var $searchInput, $searchForm;
|
|
|
|
// Use a specific index
|
|
function loadIndex(data) {
|
|
index = lunr.Index.load(data);
|
|
}
|
|
|
|
// Fetch the search index
|
|
function fetchIndex() {
|
|
$.getJSON(gitbook.state.basePath+"/search_index.json")
|
|
.then(loadIndex);
|
|
}
|
|
|
|
// Search for a term and return results
|
|
function search(q) {
|
|
if (!index) return;
|
|
|
|
var results = _.chain(index.search(q))
|
|
.map(function(result) {
|
|
var parts = result.ref.split("#")
|
|
return {
|
|
path: parts[0],
|
|
hash: parts[1]
|
|
}
|
|
})
|
|
.value();
|
|
|
|
return results;
|
|
}
|
|
|
|
// Create search form
|
|
function createForm(value) {
|
|
if ($searchForm) $searchForm.remove();
|
|
|
|
$searchForm = $('<div>', {
|
|
'class': 'book-search',
|
|
'role': 'search'
|
|
});
|
|
|
|
$searchInput = $('<input>', {
|
|
'type': 'text',
|
|
'class': 'form-control',
|
|
'val': value,
|
|
'placeholder': 'Type to search'
|
|
});
|
|
|
|
$searchInput.appendTo($searchForm);
|
|
$searchForm.prependTo(gitbook.state.$book.find('.book-summary'));
|
|
}
|
|
|
|
// Return true if search is open
|
|
function isSearchOpen() {
|
|
return gitbook.state.$book.hasClass("with-search");
|
|
}
|
|
|
|
// Toggle the search
|
|
function toggleSearch(_state) {
|
|
if (isSearchOpen() === _state) return;
|
|
|
|
gitbook.state.$book.toggleClass("with-search", _state);
|
|
|
|
// If search bar is open: focus input
|
|
if (isSearchOpen()) {
|
|
gitbook.sidebar.toggle(true);
|
|
$searchInput.focus();
|
|
} else {
|
|
$searchInput.blur();
|
|
$searchInput.val("");
|
|
gitbook.sidebar.filter(null);
|
|
}
|
|
}
|
|
|
|
// Recover current search when page changed
|
|
function recoverSearch() {
|
|
var keyword = gitbook.storage.get("keyword", "");
|
|
|
|
createForm(keyword);
|
|
|
|
if (keyword.length > 0) {
|
|
if(!isSearchOpen()) {
|
|
toggleSearch();
|
|
}
|
|
gitbook.sidebar.filter(_.pluck(search(keyword), "path"));
|
|
}
|
|
};
|
|
|
|
|
|
gitbook.events.bind("start", function(config) {
|
|
// Pre-fetch search index and create the form
|
|
fetchIndex();
|
|
createForm();
|
|
|
|
// Type in search bar
|
|
$(document).on("keyup", ".book-search input", function(e) {
|
|
var key = (e.keyCode ? e.keyCode : e.which);
|
|
var q = $(this).val();
|
|
|
|
if (key == 27) {
|
|
e.preventDefault();
|
|
toggleSearch(false);
|
|
return;
|
|
}
|
|
if (q.length == 0) {
|
|
gitbook.sidebar.filter(null);
|
|
gitbook.storage.remove("keyword");
|
|
} else {
|
|
var results = search(q);
|
|
gitbook.sidebar.filter(
|
|
_.pluck(results, "path")
|
|
);
|
|
gitbook.storage.set("keyword", q);
|
|
}
|
|
});
|
|
|
|
// Create the toggle search button
|
|
gitbook.toolbar.createButton({
|
|
icon: 'fa fa-search',
|
|
label: 'Search',
|
|
position: 'left',
|
|
onClick: toggleSearch
|
|
});
|
|
|
|
// Bind keyboard to toggle search
|
|
gitbook.keyboard.bind(['f'], toggleSearch)
|
|
});
|
|
|
|
gitbook.events.bind("page.change", recoverSearch);
|
|
});
|
|
|
|
|