mirror of
https://github.com/janeczku/calibre-web
synced 2024-11-09 11:30:00 +00:00
610 lines
12 KiB
JavaScript
610 lines
12 KiB
JavaScript
var threadregexp = /(?:^| - )(\[[^\]]*\]):/;
|
|
|
|
var colors = ["#ffa", "#aaf", "#afa", "#aff", "#faf", "#aaa", "#fd8", "#f80", "#4df", "#4fc", "#76973c", "#7e56d8", "#99593d", "#37778a", "#4068fc"];
|
|
var screenlines = 1;
|
|
|
|
var file = null;
|
|
var text;
|
|
|
|
var current, nextFilterId = 1;
|
|
var shl = null;
|
|
var hl = [];
|
|
var groupwith = false;
|
|
var filterswitch = true;
|
|
|
|
var selectedlineid = -1;
|
|
var selectedthread = null;
|
|
var reachedbottom = false;
|
|
var reachedtop = false;
|
|
|
|
|
|
function wheelscroll(event)
|
|
{
|
|
renderincremental(event.deltaY);
|
|
}
|
|
|
|
function keypress(event)
|
|
{
|
|
if (event.key == "PageDown") {
|
|
_render(screenlines - 1);
|
|
event.preventDefault();
|
|
}
|
|
if (event.key == "PageUp") {
|
|
_render(-(screenlines - 1));
|
|
event.preventDefault();
|
|
}
|
|
if (event.key == "Home" && event.ctrlKey) {
|
|
selectedlineid = 0;
|
|
render();
|
|
event.preventDefault();
|
|
}
|
|
if (event.key == "End" && event.ctrlKey) {
|
|
selectedlineid = text.length - 1;
|
|
render();
|
|
event.preventDefault();
|
|
}
|
|
if (event.key == "ArrowUp") {
|
|
renderincremental(-1);
|
|
event.preventDefault();
|
|
}
|
|
if (event.key == "ArrowDown") {
|
|
renderincremental(1);
|
|
event.preventDefault();
|
|
}
|
|
}
|
|
|
|
function init(filename) {
|
|
document.addEventListener("wheel", wheelscroll, false);
|
|
document.addEventListener("keypress", keypress, false);
|
|
window.addEventListener("resize", resize, false);
|
|
|
|
_resize();
|
|
|
|
var s = document.getElementById("search");
|
|
s.value = "";
|
|
selectfilter(0);
|
|
reload(filename);
|
|
}
|
|
|
|
function _resize()
|
|
{
|
|
var d = document.getElementById("renderer");
|
|
var t = document.getElementById("toobar");
|
|
screenlines = Math.floor((window.innerHeight - t.offsetHeight) / d.firstChild.offsetHeight) - 1;
|
|
}
|
|
|
|
function resize()
|
|
{
|
|
_resize();
|
|
repaint();
|
|
}
|
|
|
|
function reload(filename)
|
|
{
|
|
if (shl) shl.cache = {};
|
|
for (_hl of hl) _hl.cache = {};
|
|
|
|
var q = filename;
|
|
document.title = "Log: " + (q || "none loaded");
|
|
if (!q)
|
|
return;
|
|
|
|
var d = document.getElementById("renderer");
|
|
d.innerHTML = "loading " + q + "...";
|
|
|
|
var r = new XMLHttpRequest();
|
|
r.open("GET", "/ajax/accesslog", true);
|
|
r.responseType = 'text';
|
|
r.onload = function() {
|
|
console.log("prepare");
|
|
prepare(r.responseText);
|
|
if (selectedlineid > text.length) {
|
|
selectedlineid = -1;
|
|
}
|
|
console.log("render");
|
|
render();
|
|
};
|
|
r.send();
|
|
}
|
|
|
|
function _sanitize(t)
|
|
{
|
|
t = t
|
|
.replace(/&/g, "&")
|
|
.replace(/ /g, " ")
|
|
.replace(/</g, "<")
|
|
.replace(/>/g, ">");
|
|
|
|
return t;
|
|
}
|
|
|
|
function _prepare(t)
|
|
{
|
|
// sanitization happens in render, since otherwise it eats enormous amount of memory.
|
|
/*
|
|
var t = t.split('\n');
|
|
for (var i in t) {
|
|
t[i] = _sanitize(t[i]);
|
|
}
|
|
return t;
|
|
*/
|
|
return /*_sanitize*/(t).split('\n');
|
|
}
|
|
|
|
function prepare(t)
|
|
{
|
|
text = _prepare(t);
|
|
}
|
|
|
|
function render()
|
|
{
|
|
_render(0, false); // completely redraws the view from the current scroll position
|
|
}
|
|
|
|
function repaint()
|
|
{
|
|
_render(0, true); // completely redraws the view, but centers the selected line
|
|
}
|
|
|
|
function renderincremental(difference)
|
|
{
|
|
_render(difference); // "scrolls" the view
|
|
}
|
|
|
|
function _render(increment, repaintonly)
|
|
{
|
|
var epoch = new Date();
|
|
|
|
var d = document.getElementById("renderer");
|
|
var filter = _gfilteron();
|
|
|
|
function process(i, append)
|
|
{
|
|
var t = _sanitize(text[i]);
|
|
|
|
var lhl = false;
|
|
function dohl(_hl)
|
|
{
|
|
if (_hl.cache[i] === false) {
|
|
// lhl is here unaffected
|
|
return t;
|
|
}
|
|
|
|
var t2 = t.replace(new RegExp("(" + _hl.text_r + ")", "g"), "<span style='background-color:" + _hl.color + ";'>$1</span>");
|
|
var affecting = (t != t2);
|
|
_hl.cache[i] = affecting;
|
|
lhl = lhl || (affecting && (!filter || _hl.filter));
|
|
return t2;
|
|
}
|
|
|
|
for (var h in hl)
|
|
t = dohl(hl[h]);
|
|
if (shl)
|
|
t = dohl(shl);
|
|
|
|
if (filter && !lhl && i != selectedlineid) {
|
|
return false;
|
|
}
|
|
|
|
lhl = lhl && !filter;
|
|
var div = document.createElement("div");
|
|
div.id = i;
|
|
if (lhl) div.className = 'lhl';
|
|
div.onclick = function() { selectline(this); };
|
|
div.innerHTML = t;
|
|
if (t.match(new RegExp(selectedthread, "g"))) div.className += ' thread';
|
|
|
|
if (append)
|
|
d.appendChild(div);
|
|
else
|
|
d.insertBefore(div, d.firstChild);
|
|
|
|
return true;
|
|
}
|
|
|
|
var lefttodraw = Math.floor(Math.abs(increment));
|
|
|
|
if (increment < 0) {
|
|
// scroll up
|
|
reachedbottom = false;
|
|
if (reachedtop) {
|
|
_hint("reached top of the file");
|
|
return;
|
|
}
|
|
for (var i = parseInt(d.firstChild.id) - 1; lefttodraw && i >= 0 && i < text.length; --i) {
|
|
if (process(i, false)) {
|
|
--lefttodraw;
|
|
if (d.childNodes.length > screenlines)
|
|
d.removeChild(d.lastChild);
|
|
}
|
|
}
|
|
if (lefttodraw) {
|
|
_hint("reached top of the file");
|
|
reachedtop = true;
|
|
}
|
|
} else if (increment > 0) {
|
|
// scroll down
|
|
reachedtop = false;
|
|
if (reachedbottom) {
|
|
_hint("reached bottom of the file");
|
|
return;
|
|
}
|
|
for (var i = parseInt(d.lastChild.id) + 1; lefttodraw && i < text.length; ++i) {
|
|
if (process(i, true)) {
|
|
--lefttodraw;
|
|
if (d.childNodes.length > screenlines)
|
|
d.removeChild(d.firstChild);
|
|
}
|
|
}
|
|
if (lefttodraw) {
|
|
_hint("reached bottom of the file");
|
|
reachedbottom = true;
|
|
}
|
|
} else { // == 0
|
|
// redraw all
|
|
reachedbottom = false;
|
|
reachedtop = false;
|
|
lefttodraw = screenlines;
|
|
var i = repaintonly ? parseInt(d.firstChild.id) : selectedlineid;
|
|
if (i < 0) i = 0;
|
|
|
|
d.innerHTML = "";
|
|
for (; lefttodraw && i < text.length; ++i) {
|
|
if (process(i, true)) {
|
|
--lefttodraw;
|
|
}
|
|
}
|
|
|
|
if (!repaintonly && selectedlineid > -1) {
|
|
// center the selected line in the middle of screen!
|
|
_render(-(screenlines / 2));
|
|
}
|
|
}
|
|
|
|
selectline(selectedlineid);
|
|
|
|
var now = new Date();
|
|
console.log("rendered in " + (now.getTime() - epoch.getTime()) + "ms");
|
|
|
|
var pos = document.getElementById("position");
|
|
pos.textContent = Math.round((parseInt(d.firstChild.id) / text.length) * 1000) / 10 + "%";
|
|
}
|
|
|
|
function _hint(h)
|
|
{
|
|
document.getElementById("hint").innerHTML = h;
|
|
}
|
|
|
|
function _gfilteron()
|
|
{
|
|
if (!filterswitch)
|
|
return false;
|
|
|
|
if (shl && shl.filter)
|
|
return true;
|
|
|
|
for (var h in hl)
|
|
{
|
|
if (hl[h].filter)
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
function _getfilterelement(filter)
|
|
{
|
|
if (filter == 0)
|
|
return document.getElementById("search");
|
|
|
|
return document.getElementById("filter" + filter);
|
|
}
|
|
|
|
function _setfilterelementstate(p0, _hl)
|
|
{
|
|
p0.style.textDecoration = _hl.filter ? "underline" : "";
|
|
}
|
|
|
|
function _triminput(t)
|
|
{
|
|
t = t
|
|
.replace(/^\s+/, "")
|
|
.replace(/\s+$/, "")
|
|
;
|
|
return t;
|
|
}
|
|
|
|
function _regexpescape(t)
|
|
{
|
|
t = t
|
|
.replace(/\\/g, "\\\\")
|
|
.replace(/\?/g, "\\?")
|
|
.replace(/\./g, "\\.")
|
|
.replace(/\+/g, "\\+")
|
|
.replace(/\*/g, "\\*")
|
|
.replace(/\^/g, "\\^")
|
|
.replace(/\$/g, "\\$")
|
|
.replace(/\(/g, "\\(")
|
|
.replace(/\)/g, "\\)")
|
|
.replace(/\[/g, "\\[")
|
|
.replace(/\]/g, "\\]")
|
|
.replace(/\|/g, "\\|")
|
|
;
|
|
return t;
|
|
}
|
|
|
|
function resetuistate()
|
|
{
|
|
groupwith = false;
|
|
_hint("");
|
|
}
|
|
|
|
function newhl(t, p, persistent)
|
|
{
|
|
return {
|
|
id: persistent ? nextFilterId++ : 0,
|
|
text: t,
|
|
text_r: _sanitize(_regexpescape(t)),
|
|
color: p ? p.color : colors[0],
|
|
filter: p ? p.filter : false,
|
|
cache: {}
|
|
};
|
|
}
|
|
|
|
function selectline(id)
|
|
{
|
|
var l0 = document.getElementById(selectedlineid);
|
|
if (l0)
|
|
l0.style.backgroundColor = "";
|
|
|
|
var l1 = null;
|
|
if (typeof(id) == "object") {
|
|
l1 = id;
|
|
id = parseInt(l1.id);
|
|
} else {
|
|
l1 = document.getElementById(id);
|
|
}
|
|
|
|
selectedlineid = id;
|
|
if (selectedlineid > -1)
|
|
_hint("line # " + (selectedlineid + 1));
|
|
|
|
if (l1) {
|
|
l1.style.background = "#faa";
|
|
}
|
|
|
|
var thread = null;
|
|
var m = text[selectedlineid].match(threadregexp);
|
|
if (m) thread = _regexpescape(_sanitize(m[1]));
|
|
if (thread != selectedthread) {
|
|
selectedthread = thread;
|
|
repaint();
|
|
}
|
|
|
|
return l1;
|
|
}
|
|
|
|
function mouseup(event)
|
|
{
|
|
if (event.ctrlKey)
|
|
return;
|
|
|
|
resetuistate();
|
|
|
|
var s = window.getSelection();
|
|
var t = _triminput(s.toString());
|
|
if (!t)
|
|
return;
|
|
|
|
s = document.getElementById("search");
|
|
s.value = t;
|
|
|
|
t = _prepare(t)[0];
|
|
|
|
shl = newhl(t, shl);
|
|
selectfilter(0);
|
|
repaint();
|
|
}
|
|
|
|
function persist()
|
|
{
|
|
resetuistate();
|
|
|
|
var dorender = false;
|
|
if (!shl)
|
|
{
|
|
_apply();
|
|
dorender = true;
|
|
}
|
|
|
|
if (!shl)
|
|
return;
|
|
|
|
selectfilter(0);
|
|
|
|
var _hl = newhl(shl.text, shl, true);
|
|
_hl.cache = shl.cache; // hope this is right, shl is updated in _apply, that always creates an empty cache
|
|
hl.push(_hl);
|
|
|
|
var p = document.getElementById("persistents");
|
|
var p0 = document.createElement("div");
|
|
p0.id = "filter" + _hl.id;
|
|
p0.className = "persistent";
|
|
p0.style.backgroundColor = _hl.color;
|
|
p0.innerHTML = _hl.text;
|
|
p0.onclick = function() {selectfilter(_hl.id)};
|
|
_setfilterelementstate(p0, _hl);
|
|
p.appendChild(p0);
|
|
|
|
_restartshl();
|
|
selectfilter(_hl.id);
|
|
if (dorender)
|
|
render();
|
|
|
|
colors.push(colors.shift());
|
|
}
|
|
|
|
function _apply()
|
|
{
|
|
s = document.getElementById("search");
|
|
var t = _triminput(s.value);
|
|
|
|
if (!t)
|
|
{
|
|
shl = null;
|
|
}
|
|
else
|
|
{
|
|
t = _prepare(t)[0];
|
|
shl = newhl(t, shl);
|
|
}
|
|
}
|
|
|
|
function highlight()
|
|
{
|
|
resetuistate();
|
|
|
|
_apply();
|
|
|
|
repaint();
|
|
selectfilter(0);
|
|
}
|
|
|
|
function filter()
|
|
{
|
|
resetuistate();
|
|
|
|
if ((!shl && !hl.length) || (current == shl))
|
|
{
|
|
_apply();
|
|
selectfilter(0);
|
|
}
|
|
|
|
if (current) {
|
|
current.filter = !current.filter;
|
|
_setfilterelementstate(_getfilterelement(current.id), current);
|
|
if (filterswitch)
|
|
render();
|
|
else
|
|
repaint();
|
|
}
|
|
}
|
|
|
|
function group()
|
|
{
|
|
resetuistate();
|
|
|
|
// the code it self happens in selectfilter() function
|
|
|
|
if (!shl)
|
|
{
|
|
_hint("press higlight or filter first");
|
|
return;
|
|
}
|
|
|
|
if (hl.length)
|
|
{
|
|
groupwith = true;
|
|
_hint("-> now select a pinned filter to group the current highlight with");
|
|
}
|
|
else
|
|
{
|
|
_hint("you have to pin a filter with the 'pin' button first");
|
|
}
|
|
}
|
|
|
|
function _restartshl()
|
|
{
|
|
var s = document.getElementById("search");
|
|
s.value = "";
|
|
s.style.backgroundColor = "";
|
|
s.style.textDecoration = "";
|
|
current = shl = null;
|
|
}
|
|
|
|
function restart()
|
|
{
|
|
resetuistate();
|
|
|
|
var filtered = _gfilteron(); // was: = current && current.filter
|
|
|
|
if (current == shl)
|
|
{
|
|
_restartshl();
|
|
}
|
|
else
|
|
{
|
|
var p0 = _getfilterelement(current.id);
|
|
|
|
for (var h in hl)
|
|
if (hl[h].id == current.id) {
|
|
hl.splice(h, 1);
|
|
break;
|
|
}
|
|
|
|
if (current.text) {
|
|
shl = newhl(current.text, current);
|
|
var s = document.getElementById("search");
|
|
s.value = current.text;
|
|
_setfilterelementstate(s, shl);
|
|
}
|
|
selectfilter(0);
|
|
|
|
var p = document.getElementById("persistents");
|
|
p.removeChild(p0);
|
|
}
|
|
|
|
if (!shl) // means: filter could not be switched back to shl or directly shl was reset
|
|
render();
|
|
}
|
|
|
|
function selectfilter(filter)
|
|
{
|
|
var el0 = _getfilterelement(current ? current.id : 0);
|
|
var el1 = _getfilterelement(filter);
|
|
|
|
el0.style.border = "";
|
|
el0.style.margin = "";
|
|
el1.style.border = "solid 2px #3ad";
|
|
el1.style.margin = "0px";
|
|
|
|
function filterbyid(id)
|
|
{
|
|
for (var h in hl)
|
|
if (hl[h].id == id)
|
|
return hl[h];
|
|
}
|
|
|
|
if (groupwith && filter)
|
|
{
|
|
el1.innerHTML += "+" + shl.text;
|
|
var _hl = filterbyid(filter);
|
|
_hl.text = ""; // not backward compatible
|
|
_hl.text_r += "|" + shl.text_r;
|
|
_hl.cache = {};
|
|
resetuistate();
|
|
_restartshl();
|
|
render();
|
|
}
|
|
else
|
|
resetuistate();
|
|
|
|
current = (filter == 0) ? shl : filterbyid(filter);
|
|
|
|
// A bit hacky redraw of the search box color :)
|
|
if (filter === 0 && shl)
|
|
{
|
|
var s = document.getElementById("search");
|
|
s.style.backgroundColor = shl.color;
|
|
}
|
|
}
|
|
|
|
function flipfilter(event)
|
|
{
|
|
filterswitch = !filterswitch;
|
|
event.target.innerHTML = (filterswitch ? "filters on" : "filters off");
|
|
render();
|
|
|
|
event.stopPropagation();
|
|
}
|