108 lines
2.3 KiB
JavaScript
108 lines
2.3 KiB
JavaScript
const menu_id = "docs_menu";
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const filter_id = "search_input";
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var last_active_hash = "";
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window.onload = function()
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{
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let new_hash = window.location.hash.substr(1);
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UpdateActiveDoc(last_active_hash, new_hash);
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last_active_hash = new_hash;
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UpdateListByFilter();
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};
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window.onhashchange = function()
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{
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let new_hash = window.location.hash.substr(1);
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UpdateActiveDoc(last_active_hash, new_hash);
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last_active_hash = new_hash;
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}
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function StringMatch4coderFuzzy(a, b)
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{
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let match = true;
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let b_upper = b.toUpperCase();
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let a_substrings = a.toUpperCase().split(/[ _*]+/);
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let minimum_index = 0;
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for(let i = 0; i < a_substrings.length; ++i)
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{
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if(a_substrings[i].length > 0)
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{
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let index_of_substring = b_upper.indexOf(a_substrings[i], minimum_index);
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if(index_of_substring < 0 || index_of_substring < minimum_index)
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{
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match = false;
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break;
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}
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minimum_index = index_of_substring + a_substrings[i].length - 1;
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}
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}
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return match;
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}
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function UpdateListByFilter()
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{
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let ul = document.getElementById(menu_id);
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let li = ul.getElementsByTagName("li");
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let input = document.getElementById(filter_id);
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let filter = input.value.toUpperCase();
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for(let i = 0; i < li.length; i++)
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{
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if(filter.length > 0)
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{
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let a = li[i].getElementsByTagName("a")[0];
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if(StringMatch4coderFuzzy(filter, a.innerHTML))
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{
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li[i].style.display = "";
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}
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else
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{
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li[i].style.display = "none";
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}
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}
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else
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{
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li[i].style.display = "";
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}
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}
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}
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function SearchInput(event)
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{
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UpdateListByFilter();
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}
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function SearchKeyDown(event)
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{
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if(event.keyCode == 13)
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{
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event.preventDefault();
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let ul = document.getElementById(menu_id);
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let li = ul.getElementsByTagName("li");
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for (let i = 0; i < li.length; i++)
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{
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if(li[i].style.display == "")
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{
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let new_hash = li[i].getElementsByTagName("a")[0].innerHTML;
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UpdateActiveDoc(last_active_hash, new_hash);
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window.location.hash = new_hash;
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break;
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}
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}
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}
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}
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function UpdateActiveDoc(old_hash, new_hash)
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{
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if(old_hash != null && old_hash != undefined && old_hash.length > 0)
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{
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document.getElementById(old_hash).classList.add("hidden");
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}
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if(new_hash != null && new_hash != undefined && new_hash.length > 0)
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{
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document.getElementById(new_hash).classList.remove("hidden");
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}
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document.getElementById(filter_id).focus();
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} |