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md-editor: add paragraph jumping

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ed 2020-08-17 00:42:05 +00:00
parent 765af31b83
commit faf49f6c15
1 changed files with 39 additions and 5 deletions
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42
copyparty/web/md2.js
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@ -221,7 +221,7 @@ function save(e) {
save_cls = save_btn.getAttribute('class') + '';
if (save_cls.indexOf('disabled') >= 0) {
alert('there is nothing to save');
toast('font-size:2em;color:#fc6;width:9em;', 'no changes');
return;
}
@ -238,7 +238,7 @@ function save(e) {
fd.append("lastmod", (force ? -1 : last_modified));
fd.append("body", txt);
var url = (document.location + '').split('?')[0] + '?raw';
var url = (document.location + '').split('?')[0];
var xhr = new XMLHttpRequest();
xhr.open('POST', url, true);
xhr.responseType = 'text';
@ -325,10 +325,14 @@ function save_chk() {
last_modified = this.lastmod;
server_md = this.txt;
draw_md();
toast('font-size:6em;font-family:serif;color:#cf6;width:4em;', 'OK✔️');
}
function toast(style, msg) {
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✔️';
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';
ok.setAttribute('style', style);
ok.innerHTML = msg;
var parent = document.getElementById('m');
document.documentElement.appendChild(ok);
setTimeout(function () {
@ -520,6 +524,30 @@ function md_backspace() {
}
// paragraph jump
function md_p_jump(down) {
var ofs = dom_src.selectionStart;
var txt = dom_src.value;
if (down) {
while (txt[ofs] == '\n' && --ofs > 0);
ofs = txt.indexOf("\n\n", ofs);
if (ofs < 0)
ofs = txt.length - 1;
while (txt[ofs] == '\n' && ++ofs < txt.length - 1);
}
else {
txt += '\n\n';
while (ofs > 1 && txt[ofs - 1] == '\n') ofs--;
ofs = Math.max(0, txt.lastIndexOf("\n\n", ofs - 1));
while (txt[ofs] == '\n' && ++ofs < txt.length - 1);
}
dom_src.setSelectionRange(ofs, ofs, "none");
}
// hotkeys / toolbar
(function () {
function keydown(ev) {
@ -562,6 +590,12 @@ function md_backspace() {
if (!ctrl && !ev.shiftKey && kc == 8) {
return md_backspace();
}
var up = ev.code == "ArrowUp" || kc == 38;
var dn = ev.code == "ArrowDown" || kc == 40;
if (ctrl && (up || dn)) {
md_p_jump(dn);
return false;
}
}
}
document.onkeydown = keydown;