md: poll server for changes

This commit is contained in:
ed 2020-11-30 03:00:44 +01:00
parent 8b502a7235
commit 2bc6a20d71
10 changed files with 200 additions and 63 deletions

View file

@ -123,20 +123,17 @@ def main():
"""
),
)
ap.add_argument(
"-c", metavar="PATH", type=str, action="append", help="add config file"
)
ap.add_argument("-c", metavar="PATH", type=str, action="append", help="add config file")
ap.add_argument("-i", metavar="IP", type=str, default="0.0.0.0", help="ip to bind")
ap.add_argument("-p", metavar="PORT", type=int, default=3923, help="port to bind")
ap.add_argument("-nc", metavar="NUM", type=int, default=64, help="max num clients")
ap.add_argument(
"-j", metavar="CORES", type=int, default=1, help="max num cpu cores"
)
ap.add_argument("-j", metavar="CORES", type=int, default=1, help="max num cpu cores")
ap.add_argument("-a", metavar="ACCT", type=str, action="append", help="add account")
ap.add_argument("-v", metavar="VOL", type=str, action="append", help="add volume")
ap.add_argument("-q", action="store_true", help="quiet")
ap.add_argument("-ed", action="store_true", help="enable ?dots")
ap.add_argument("-emp", action="store_true", help="enable markdown plugins")
ap.add_argument("-mcr", metavar="SEC", type=int, default=60, help="md-editor mod-chk rate")
ap.add_argument("-nw", action="store_true", help="disable writes (benchmark)")
ap.add_argument("-nih", action="store_true", help="no info hostname")
ap.add_argument("-nid", action="store_true", help="no info disk-usage")

View file

@ -964,6 +964,7 @@ class HttpCli(object):
"title": html_escape(self.vpath),
"lastmod": int(ts_md * 1000),
"md_plug": "true" if self.args.emp else "false",
"md_chk_rate": self.args.mcr,
"md": "",
}
sz_html = len(template.render(**targs).encode("utf-8"))

View file

@ -27,7 +27,7 @@ var mp = (function () {
};
var re_audio = new RegExp('\.(opus|ogg|m4a|aac|mp3|wav|flac)$', 'i');
var trs = document.getElementById('files').getElementsByTagName('tbody')[0].getElementsByTagName('tr');
var trs = ebi('files').getElementsByTagName('tbody')[0].getElementsByTagName('tr');
for (var a = 0, aa = trs.length; a < aa; a++) {
var tds = trs[a].getElementsByTagName('td');
var link = tds[1].getElementsByTagName('a')[0];
@ -70,8 +70,8 @@ var mp = (function () {
// toggle player widget
var widget = (function () {
var ret = {};
var widget = document.getElementById('widget');
var wtoggle = document.getElementById('wtoggle');
var widget = ebi('widget');
var wtoggle = ebi('wtoggle');
var touchmode = false;
var side_open = false;
var was_paused = true;

View file

@ -126,7 +126,8 @@ write markdown (most html is 🙆 too)
var last_modified = {{ lastmod }};
var md_opt = {
link_md_as_html: false,
allow_plugins: {{ md_plug }}
allow_plugins: {{ md_plug }},
modpoll_freq: {{ md_chk_rate }}
};
(function () {

View file

@ -1,12 +1,12 @@
"use strict";
var dom_toc = document.getElementById('toc');
var dom_wrap = document.getElementById('mw');
var dom_hbar = document.getElementById('mh');
var dom_nav = document.getElementById('mn');
var dom_pre = document.getElementById('mp');
var dom_src = document.getElementById('mt');
var dom_navtgl = document.getElementById('navtoggle');
var dom_toc = ebi('toc');
var dom_wrap = ebi('mw');
var dom_hbar = ebi('mh');
var dom_nav = ebi('mn');
var dom_pre = ebi('mp');
var dom_src = ebi('mt');
var dom_navtgl = ebi('navtoggle');
// chrome 49 needs this
@ -161,7 +161,7 @@ function copydom(src, dst, lv) {
function md_plug_err(ex, js) {
var errbox = document.getElementById('md_errbox');
var errbox = ebi('md_errbox');
if (errbox)
errbox.parentNode.removeChild(errbox);
@ -367,7 +367,7 @@ function convert_markdown(md_text, dest_dom) {
function init_toc() {
var loader = document.getElementById('ml');
var loader = ebi('ml');
loader.parentNode.removeChild(loader);
var anchors = []; // list of toc entries, complex objects

View file

@ -77,32 +77,52 @@ html.dark #mt {
background: #f97;
border-radius: .15em;
}
html.dark #save.force-save {
color: #fca;
background: #720;
}
#save.disabled {
opacity: .4;
}
#helpbox,
#toast {
background: #f7f7f7;
border-radius: .4em;
z-index: 9001;
}
#helpbox {
display: none;
position: fixed;
background: #f7f7f7;
box-shadow: 0 .5em 2em #777;
border-radius: .4em;
padding: 2em;
top: 4em;
overflow-y: auto;
box-shadow: 0 .5em 2em #777;
height: calc(100% - 12em);
left: calc(50% - 15em);
right: 0;
width: 30em;
z-index: 9001;
}
#helpclose {
display: block;
}
html.dark #helpbox {
background: #222;
box-shadow: 0 .5em 2em #444;
}
html.dark #helpbox,
html.dark #toast {
background: #222;
border: 1px solid #079;
border-width: 1px 0;
}
#toast {
font-weight: bold;
text-align: center;
padding: .6em 0;
position: fixed;
z-index: 9001;
top: 30%;
transition: opacity 0.2s ease-in-out;
opacity: 1;
}
# mt {opacity: .5;top:1px}

View file

@ -11,15 +11,15 @@ var js_uni_whitelist = eval('\'' + esc_uni_whitelist + '\'');
// dom nodes
var dom_swrap = document.getElementById('mtw');
var dom_sbs = document.getElementById('sbs');
var dom_nsbs = document.getElementById('nsbs');
var dom_tbox = document.getElementById('toolsbox');
var dom_swrap = ebi('mtw');
var dom_sbs = ebi('sbs');
var dom_nsbs = ebi('nsbs');
var dom_tbox = ebi('toolsbox');
var dom_ref = (function () {
var d = document.createElement('div');
d.setAttribute('id', 'mtr');
dom_swrap.appendChild(d);
d = document.getElementById('mtr');
d = ebi('mtr');
// hide behind the textarea (offsetTop is not computed if display:none)
dom_src.style.zIndex = '4';
d.style.zIndex = '3';
@ -108,7 +108,7 @@ var draw_md = (function () {
map_src = genmap(dom_ref, map_src);
map_pre = genmap(dom_pre, map_pre);
cls(document.getElementById('save'), 'disabled', src == server_md);
cls(ebi('save'), 'disabled', src == server_md);
var t1 = new Date().getTime();
delay = t1 - t0 > 100 ? 25 : 1;
@ -223,14 +223,108 @@ redraw = (function () {
})();
// modification checker
function Modpoll() {
this.skip_one = true;
this.disabled = false;
this.periodic = function () {
var that = this;
setTimeout(function () {
that.periodic();
}, 1000 * md_opt.modpoll_freq);
var skip = null;
if (ebi('toast'))
skip = 'toast';
else if (this.skip_one)
skip = 'saved';
else if (this.disabled)
skip = 'disabled';
if (skip) {
console.log('modpoll skip, ' + skip);
this.skip_one = false;
return;
}
console.log('modpoll...');
var url = (document.location + '').split('?')[0] + '?raw&_=' + new Date().getTime();
var xhr = new XMLHttpRequest();
xhr.modpoll = this;
xhr.open('GET', url, true);
xhr.responseType = 'text';
xhr.onreadystatechange = this.cb;
xhr.send();
}
this.cb = function () {
if (this.modpoll.disabled || this.modpoll.skip_one) {
console.log('modpoll abort');
return;
}
if (this.readyState != XMLHttpRequest.DONE)
return;
if (this.status !== 200) {
console.log('modpoll err ' + this.status + ": " + this.responseText);
return;
}
if (!this.responseText)
return;
var server_ref = server_md.replace(/\r/g, '');
var server_now = this.responseText.replace(/\r/g, '');
if (server_ref != server_now) {
console.log("modpoll diff |" + server_ref.length + "|, |" + server_now.length + "|");
this.modpoll.disabled = true;
var msg = [
"The document has changed on the server.<br />" +
"The changes will NOT be loaded into your editor automatically.",
"Press F5 or CTRL-R to refresh the page,<br />" +
"replacing your document with the server copy.",
"You can click this message to ignore and contnue."
];
return toast(false, "box-shadow:0 1em 2em rgba(64,64,64,0.8);font-weight:normal",
36, "<p>" + msg.join('</p>\n<p>') + '</p>');
}
console.log('modpoll eq');
}
if (md_opt.modpoll_freq > 0)
this.periodic();
return this;
};
var modpoll = new Modpoll();
window.onbeforeunload = function (e) {
if ((ebi("save").getAttribute('class') + '').indexOf('disabled') >= 0)
return; //nice (todo)
e.preventDefault(); //ff
e.returnValue = ''; //chrome
};
// save handler
function save(e) {
if (e) e.preventDefault();
var save_btn = document.getElementById("save"),
var save_btn = ebi("save"),
save_cls = save_btn.getAttribute('class') + '';
if (save_cls.indexOf('disabled') >= 0) {
toast('font-size:2em;color:#fc6;width:9em;', 'no changes');
toast(true, ";font-size:2em;color:#c90", 9, "no changes");
return;
}
@ -254,6 +348,8 @@ function save(e) {
xhr.onreadystatechange = save_cb;
xhr.btn = save_btn;
xhr.txt = txt;
modpoll.skip_one = true; // skip one iteration while we save
xhr.send(fd);
}
@ -347,23 +443,44 @@ function savechk_cb() {
last_modified = this.lastmod;
server_md = this.txt;
draw_md();
toast('font-size:6em;font-family:serif;color:#cf6;width:4em;',
toast(true, ";font-size:6em;font-family:serif;color:#9b4", 4,
'OK✔<span style="font-size:.2em;color:#999;position:absolute">' + this.ntry + '</span>');
modpoll.disabled = false;
}
function toast(style, msg) {
var ok = document.createElement('div');
style += 'font-weight:bold;background:#444;border-radius:.3em;padding:.6em 0;position:fixed;top:30%;left:calc(50% - 2em);text-align:center;z-index:9001;transition:opacity 0.2s ease-in-out;opacity:1';
function toast(autoclose, style, width, msg) {
var ok = ebi("toast");
if (ok)
ok.parentNode.removeChild(ok);
style = "width:" + width + "em;left:calc(50% - " + (width / 2) + "em);" + style;
ok = document.createElement('div');
ok.setAttribute('id', 'toast');
ok.setAttribute('style', style);
ok.innerHTML = msg;
var parent = document.getElementById('m');
var parent = ebi('m');
document.documentElement.appendChild(ok);
setTimeout(function () {
ok.style.opacity = 0;
}, 500);
setTimeout(function () {
ok.parentNode.removeChild(ok);
}, 750);
var hide = function (delay) {
delay = delay || 0;
setTimeout(function () {
ok.style.opacity = 0;
}, delay);
setTimeout(function () {
if (ok.parentNode)
ok.parentNode.removeChild(ok);
}, delay + 250);
}
ok.onclick = function () {
hide(0);
};
if (autoclose)
hide(500);
}
@ -806,7 +923,7 @@ function cfg_uni(e) {
return false;
}
if (ev.code == "Escape" || kc == 27) {
var d = document.getElementById('helpclose');
var d = ebi('helpclose');
if (d)
d.click();
}
@ -863,22 +980,22 @@ function cfg_uni(e) {
}
}
document.onkeydown = keydown;
document.getElementById('save').onclick = save;
ebi('save').onclick = save;
})();
document.getElementById('tools').onclick = function (e) {
ebi('tools').onclick = function (e) {
if (e) e.preventDefault();
var is_open = dom_tbox.getAttribute('class') != 'open';
dom_tbox.setAttribute('class', is_open ? 'open' : '');
};
document.getElementById('help').onclick = function (e) {
ebi('help').onclick = function (e) {
if (e) e.preventDefault();
dom_tbox.setAttribute('class', '');
var dom = document.getElementById('helpbox');
var dom = ebi('helpbox');
var dtxt = dom.getElementsByTagName('textarea');
if (dtxt.length > 0) {
convert_markdown(dtxt[0].value, dom);
@ -886,16 +1003,16 @@ document.getElementById('help').onclick = function (e) {
}
dom.style.display = 'block';
document.getElementById('helpclose').onclick = function () {
ebi('helpclose').onclick = function () {
dom.style.display = 'none';
};
};
document.getElementById('fmt_table').onclick = fmt_table;
document.getElementById('mark_uni').onclick = mark_uni;
document.getElementById('iter_uni').onclick = iter_uni;
document.getElementById('cfg_uni').onclick = cfg_uni;
ebi('fmt_table').onclick = fmt_table;
ebi('mark_uni').onclick = mark_uni;
ebi('iter_uni').onclick = iter_uni;
ebi('cfg_uni').onclick = cfg_uni;
// blame steen
@ -1019,7 +1136,7 @@ action_stack = (function () {
})();
/*
document.getElementById('help').onclick = function () {
ebi('help').onclick = function () {
var c1 = getComputedStyle(dom_src).cssText.split(';');
var c2 = getComputedStyle(dom_ref).cssText.split(';');
var max = Math.min(c1.length, c2.length);

View file

@ -25,7 +25,8 @@
var last_modified = {{ lastmod }};
var md_opt = {
link_md_as_html: false,
allow_plugins: {{ md_plug }}
allow_plugins: {{ md_plug }},
modpoll_freq: {{ md_chk_rate }}
};
var lightswitch = (function () {

View file

@ -1,9 +1,9 @@
"use strict";
var dom_wrap = document.getElementById('mw');
var dom_nav = document.getElementById('mn');
var dom_doc = document.getElementById('m');
var dom_md = document.getElementById('mt');
var dom_wrap = ebi('mw');
var dom_nav = ebi('mn');
var dom_doc = ebi('m');
var dom_md = ebi('mt');
(function () {
var n = document.location + '';
@ -65,7 +65,7 @@ var mde = (function () {
mde.codemirror.on("change", function () {
md_changed(mde);
});
var loader = document.getElementById('ml');
var loader = ebi('ml');
loader.parentNode.removeChild(loader);
return mde;
})();
@ -215,7 +215,7 @@ function save_chk() {
var ok = document.createElement('div');
ok.setAttribute('style', 'font-size:6em;font-family:serif;font-weight:bold;color:#cf6;background:#444;border-radius:.3em;padding:.6em 0;position:fixed;top:30%;left:calc(50% - 2em);width:4em;text-align:center;z-index:9001;transition:opacity 0.2s ease-in-out;opacity:1');
ok.innerHTML = 'OK✔';
var parent = document.getElementById('m');
var parent = ebi('m');
document.documentElement.appendChild(ok);
setTimeout(function () {
ok.style.opacity = 0;

View file

@ -38,7 +38,7 @@ function goto(dest) {
obj[a].classList.remove('act');
if (dest) {
document.getElementById('op_' + dest).classList.add('act');
ebi('op_' + dest).classList.add('act');
document.querySelector('#ops>a[data-dest=' + dest + ']').classList.add('act');
var fn = window['goto_' + dest];
@ -66,7 +66,7 @@ function goto_up2k() {
if (op !== null && op !== '.')
goto(op);
}
document.getElementById('ops').style.display = 'block';
ebi('ops').style.display = 'block';
})();