105 lines
3.4 KiB
JavaScript
105 lines
3.4 KiB
JavaScript
var loading = false;
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var usable = false;
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var search_index = false;
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// Check endianness to serve right file
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function checkEndian(){
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var a = new ArrayBuffer(4);
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var b = new Uint8Array(a);
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var c = new Uint32Array(a);
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b[0] = 0xa1;
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b[1] = 0xb2;
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b[2] = 0xc3;
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b[3] = 0xd4;
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if(c[0] == 0xd4c3b2a1) return "little";
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if(c[0] == 0xa1b2c3d4) return "big";
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else return 0;
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}
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document.getElementById('search_form').addEventListener('submit', function(e) {
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e.preventDefault();
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});
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document.getElementById('search').addEventListener('click', function() {
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if(this.value == "Search for articles...") {
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this.value = "";
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}
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if(search_index === false) {
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loading = true;
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document.getElementById("loading").innerHTML = "Loading index file...";
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var oReq = new XMLHttpRequest();
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oReq.open("GET", "data/search_index_"+checkEndian(), true);
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oReq.responseType = "arraybuffer";
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oReq.onload = function (oEvent) {
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var arrayBuffer = oReq.response; // Note: not oReq.responseText
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if (arrayBuffer) {
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var tmp = new Uint8Array(arrayBuffer);
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var nb_filters = tmp[0]*256+tmp[1];
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search_index = new Array(nb_filters);
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// For each of the bitarrays, parse it
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var offset = 2;
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for (var i = 0; i < nb_filters; i++) {
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// Size of the filter
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var length = tmp[offset]*256+tmp[offset+1]; // length is a number of bytes
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var length_offset = Math.ceil(length/8);
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search_index[i] = new Uint8Array(length_offset);
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// Parse filter
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for (var j = 2; j < 2 + length_offset; j++) {
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search_index[i][j] = tmp[offset + j];
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}
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offset += 2 + length_offset;
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}
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console.log(search_index);
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document.getElementById("loading").innerHTML = "";
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loading = false;
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usable = true;
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}
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else {
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document.getElementById("loading").innerHTML = "Error while loading search index.";
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}
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};
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oReq.send(null);
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var oReq2 = new XMLHttpRequest();
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oReq2.open("GET", "data/pages_index.json", true);
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oReq2.onreadystatechange = function() {
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if (this.readyState == 4) {
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if (this.status == 200) {
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pages_index = window.JSON ? JSON.parse(this.responseText) : eval("("+this.responseText+")");
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}
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else {
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document.getElementById("loading").innerHTML = "Error while loading pages index : HTTP error " + this.status + " " + this.statusText;
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}
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}
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}
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oReq2.send();
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}
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});
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/*function callback_change() {
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if(!usable) {
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return;
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}
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var search = document.getElementById("search").value;
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document.getElementById("results").innerHTML = "<h2>Results :</h2>";
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//* for(var key in index) {
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if(index[key].test(search)) {
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document.getElementById("results").innerHTML += "<p>"+key+"</p>";
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}
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}* //
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if(!document.querySelectorAll("#results p").length) {
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document.getElementById("results").innerHTML += "<p>No results...</p>";
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}
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}
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document.getElementById("search").addEventListener('input', callback_change);*/
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