// ==UserScript==
// @name    Feedly Scroll Marker
// @description    Display the marker of page scroll in Feedly. / Feedlyでページスクロールしたときにマーカーを表示します。
// @id    FeedlyScrollMarker
// @namespace    http://userscripts.org/scripts/show/174679
// @homepage    https://greasyfork.org/scripts/899-feedly-scroll-marker
// @include    http://feedly.com/*
// @include    https://feedly.com/*
// @grant    GM_addStyle
// @version    1.03
// ==/UserScript==
(function() {
try { if (typeof localStorage !== 'object') return alert('FSM Error: DOM Storage'); }
catch(er) { return alert('FSM Error: DOM Storage'); }
var $id = function(id) { return document.getElementById(id); }, iInit;
var init = function() {
var nScrPos = 0, nTime = 750, shift = false, iMarker, st;
var ism = document.createElement('div');
ism.id = 'fsm_scroll_marker';
document.body.appendChild(ism);
var CSS = [
'#fsm_settings { display: none; color: black; position: fixed; top: 68px; left: 68px; z-index: 90200; background: rgba(255, 255, 255, 0.98); border: 1px solid #999999; border-radius: 4px; min-width: 35em; box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2); }',
'#fsm_s_titlebar { background-color: #666666; border-radius: 4px 4px 0 0; padding: 2px 0 0 4px; height: 2em; }',
'#fsm_s_title a { font-size: 110%; font-weight: bold; color: white; text-decoration: none; }',
'#fsm_s_title a:hover { color: #FFFF99; }',
'#fsm_s_btn { position: absolute; top: 2px; right: 4px; }',
'#fsm_s_ok { margin-right: 0.5em; padding: 0 2em; }',
'#fsm_s_cancel { padding: 0 1ex; }',
'#fsm_s_ok, #fsm_s_cancel { font-size: 80%; }',
'#fsm_s_body { padding: 0.5em 1em; }',
'#fsm_s_body fieldset { margin: 4px 2px; background: rgba(255, 255, 255, 0); }',
'#fsm_s_body input { margin-left: 0.5em; text-align: center; width: 6ex; }',
'#fsm_s_body input[type="checkbox"] { vertical-align: middle; width: auto; }',
'#fsm_s_time { vertical-align: inherit; }',
'#fsm_scroll_marker, #fsm_scroll_marker2 { position: absolute; width: 100%; height: 4px; margin-top: -2px; background: rgba(255,0,0,0.25); display: none; }',
'#fsm_scroll_marker { z-index: 88801; }',
'#fsm_scroll_marker2 { z-index: 88802; }'
].join('');
GM_addStyle(CSS);
var locale_ja = [
'設定',
'キャンセル',
'マーカーを表示する時間 (ミリ秒):',
'マーカーを表示するショートカットキー'
];
var locale_en = [
'Settings',
'Cancel',
'Time to display the marker (msec):',
'Keyboard shortcut to display the marker'
];
var loc = (window.navigator.language === 'ja') ? locale_ja : locale_en;
var currentMode = function() {
var e1 = $id('feedlyPageFX'), e2 = $id('timeline'),
t1 = 'presentation-', t2 = 'EntryList';
if (document.getElementsByClassName('floatingEntryScroller').length) return 'fes';
if (e1 && e1.hasChildNodes()) {
e1 = e1.firstChild;
return (e1.classList.contains(t1 + '0')) ? 'T'
: (e1.classList.contains(t1 + '4')) ? 'M2'
: (e1.classList.contains(t1 + '5')) ? 'C'
: (e1.classList.contains(t1 + '100')) ? 'F' : '';
}
if (e2) {
return (e2.classList.contains('u0' + t2)) ? 'T'
: (e2.classList.contains('u4' + t2)) ? 'M1'
: (e2.classList.contains('u5' + t2)) ? 'C'
: (e2.classList.contains('u100' + t2)) ? 'F' : '';
}
return '';
};
var currentEntry = function(m) {
var mode = (m) ? m : currentMode();
switch (mode) {
case 'T': case 'M1':
return document.querySelector('#timeline .inlineFrame');
case 'C': case 'M2': case 'fes':
return document.querySelector('#floatingEntry .floatingEntryScroller');
case 'F':
return document.querySelector('#timeline .selectedEntry');
default:
return document.querySelector('#mainArea .inlineFrame');
}
};
var setMarker = function() {
var mode = currentMode();
if (mode === 'C' || mode === 'M2' || mode === 'fes') {
if ($id('fsm_scroll_marker2')) ism = $id('fsm_scroll_marker2');
else {
var ism2 = document.createElement('div');
ism2.id = 'fsm_scroll_marker2';
currentEntry(mode).appendChild(ism2);
ism = ism2;
}
} else ism = $id('fsm_scroll_marker');
};
var viewSettings = function() {
if ($id('fsm_settings').style.display === 'block') {
$id('fsm_settings').style.display = 'none';
return;
}
$id('fsm_s_time').value = st.time;
$id('fsm_s_key_page').checked = (st.key_page) ? true : false;
$id('fsm_s_key_space').checked = (st.key_space) ? true : false;
$id('fsm_settings').style.display = 'block';
};
var loadSettings = function() {
st = {};
try {
st = JSON.parse(localStorage.getItem('FeedlyScrollMarker_settings')) || {};
} catch(er) { alert('FSM Error: Load Settings'); }
var notB = function(a) {
return (typeof a !== 'boolean') ? true : false;
};
var notN = function(a) {
return (typeof a !== 'number') ? true : false;
};
if (notN(st.time)) st.time = nTime;
if (notB(st.key_page)) st.key_page = true;
if (notB(st.key_space)) st.key_space = true;
};
var saveSettings = function() {
try {
localStorage.setItem('FeedlyScrollMarker_settings', JSON.stringify(st));
} catch(er) { alert('FSM Error: Save Settings'); }
};
var div = document.createElement('div');
div.id = 'fsm_settings';
document.body.appendChild(div);
$id('fsm_settings').innerHTML = '<div id="fsm_s_titlebar"><div id="fsm_s_title"><a href="https://greasyfork.org/scripts/899-feedly-scroll-marker" target="_blank">Feedly Scroll Marker ' + loc[0] + '</a></div><div id="fsm_s_btn"><input type="button" id="fsm_s_ok" value="OK"><input type="button" id="fsm_s_cancel" value="' + loc[1] + '"></div></div><div id="fsm_s_body"><label>' + loc[2] + '<input id="fsm_s_time" type="text" maxlength="4"></label><fieldset><legend>' + loc[3] + ' : </legend><label><input id="fsm_s_key_page" type="checkbox">PageUp / PageDown</label><br><label><input id="fsm_s_key_space" type="checkbox">Space / Shift+Space</label></fieldset></div>';
var eTabs = $id('feedlyTabs'), eItem;
if (eTabs) {
eItem = document.createElement('div');
eItem.className = 'tab';
eItem.innerHTML = '<div class="header target"><div id="fsm_settings-menu" class="label primary iconless">Scroll Marker ' + loc[0] + '</div></div>';
eTabs.appendChild(eItem);
}
document.addEventListener('keydown', function(e) {
if (!/^input|^textarea/i.test(e.target.tagName) && st.time !== 0) {
setMarker();
if (
(st.key_page && e.keyCode === 33) ||
(st.key_page && e.keyCode === 34) ||
(st.key_space && e.keyCode === 32)
) {
var mode = currentMode();
ism.style.display = 'none';
if (mode === 'C' || mode === 'M2' || mode === 'fes') nScrPos = currentEntry(mode).scrollTop;
else nScrPos = window.scrollY;
if (e.shiftKey) shift = true;
} else if (e.keyCode === 13) {
if (currentEntry()) {
window.clearTimeout(iMarker);
ism.style.display = 'none';
}
} else if (ism.style.display !== 'none') {
window.clearTimeout(iMarker);
ism.style.display = 'none';
}
}
}, true);
document.addEventListener('keyup', function(e) {
if (!/^input|^textarea/i.test(e.target.tagName) && st.time !== 0) {
var mode = currentMode(), sch, sst, ele;
if (mode === 'C' || mode === 'M2' || mode === 'fes') {
ele = currentEntry(mode);
sch = ele.clientHeight;
sst = ele.scrollTop;
} else {
sch = document.body.parentNode.clientHeight;
sst = document.body.parentNode.scrollTop;
}
if (
(st.key_page && e.keyCode === 33) ||
(st.key_space && e.keyCode === 32 && e.shiftKey)
) {
if (nScrPos !== sst) {
ism.style.display = 'block';
ism.style.top = (nScrPos - (ism.scrollHeight / 2)) + 'px';
window.clearTimeout(iMarker);
if (st.time > 0) {
iMarker = window.setTimeout(function() {
window.clearTimeout(iMarker);
ism.style.display = 'none';
}, st.time);
}
}
shift = false;
} else if (
(st.key_page && e.keyCode === 34) ||
(st.key_space && e.keyCode === 32 && !e.shiftKey)
) {
if (nScrPos !== sst) {
ism.style.display = 'block';
ism.style.top = (nScrPos + sch + (ism.scrollHeight / 2)) + 'px';
window.clearTimeout(iMarker);
if (st.time > 0) {
iMarker = window.setTimeout(function() {
window.clearTimeout(iMarker);
ism.style.display = 'none';
}, st.time);
}
}
shift = false;
}
}
}, true);
document.addEventListener('click', function(e) {
if (e.button >= 2) return;
if (e.target.id === 'fsm_settings-menu') {
viewSettings();
} else if (e.target.id === 'fsm_s_ok') {
var time = $id('fsm_s_time').value, problem = false;
if (time === '' || /^\s+$/.test(time)) st.time = nTime;
else if (time && !isNaN(time)) st.time = Number(time);
else problem = true;
if (!problem) {
st.key_page = $id('fsm_s_key_page').checked;
st.key_space = $id('fsm_s_key_space').checked;
$id('fsm_s_ok').blur();
$id('fsm_settings').style.display = 'none';
saveSettings();
}
} else if (e.target.id === 'fsm_s_cancel') {
$id('fsm_s_cancel').blur();
$id('fsm_settings').style.display = 'none';
} else if (ism.style.display !== 'none') {
window.clearTimeout(iMarker);
ism.style.display = 'none';
}
}, false);
loadSettings();
};
iInit = window.setInterval(function() {
var e = $id('feedlyTitleBar');
if (e && e.hasChildNodes()) {
window.clearInterval(iInit);
window.setTimeout(function() {
init();
}, 1000);
}
}, 500);
})();