340 lines
No EOL
12 KiB
JavaScript
340 lines
No EOL
12 KiB
JavaScript
//
|
|
// Inject line numbers for sync scroll. Notes:
|
|
//
|
|
// - We track only headings and paragraphs on first level. That's enougth.
|
|
// - Footnotes content causes jumps. Level limit filter it automatically.
|
|
//
|
|
md.renderer.rules.blockquote_open = function (tokens, idx /*, options, env */ ) {
|
|
if (tokens[idx].lines && tokens[idx].level === 0) {
|
|
var startline = tokens[idx].lines[0] + 1;
|
|
var endline = tokens[idx].lines[1];
|
|
return '<blockquote class="raw part" data-startline="' + startline + '" data-endline="' + endline + '">\n';
|
|
}
|
|
return '<blockquote>\n';
|
|
};
|
|
|
|
md.renderer.rules.table_open = function (tokens, idx /*, options, env */ ) {
|
|
if (tokens[idx].lines && tokens[idx].level === 0) {
|
|
var startline = tokens[idx].lines[0] + 1;
|
|
var endline = tokens[idx].lines[1];
|
|
return '<table class="part" data-startline="' + startline + '" data-endline="' + endline + '">\n';
|
|
}
|
|
return '<table>\n';
|
|
};
|
|
|
|
md.renderer.rules.bullet_list_open = function (tokens, idx /*, options, env */ ) {
|
|
if (tokens[idx].lines && tokens[idx].level === 0) {
|
|
var startline = tokens[idx].lines[0] + 1;
|
|
var endline = tokens[idx].lines[1];
|
|
return '<ul class="part" data-startline="' + startline + '" data-endline="' + endline + '">\n';
|
|
}
|
|
return '<ul>\n';
|
|
};
|
|
|
|
md.renderer.rules.ordered_list_open = function (tokens, idx /*, options, env */ ) {
|
|
var token = tokens[idx];
|
|
if (tokens[idx].lines && tokens[idx].level === 0) {
|
|
var startline = tokens[idx].lines[0] + 1;
|
|
var endline = tokens[idx].lines[1];
|
|
return '<ol class="part" data-startline="' + startline + '" data-endline="' + endline + '"' + (token.order > 1 ? ' start="' + token.order + '"' : '') + '>\n';
|
|
}
|
|
return '<ol' + (token.order > 1 ? ' start="' + token.order + '"' : '') + '>\n';
|
|
};
|
|
|
|
md.renderer.rules.link_open = function (tokens, idx /*, options, env */ ) {
|
|
var title = tokens[idx].title ? (' title="' + Remarkable.utils.escapeHtml(Remarkable.utils.replaceEntities(tokens[idx].title)) + '"') : '';
|
|
if (tokens[idx].lines && tokens[idx].level === 0) {
|
|
var startline = tokens[idx].lines[0] + 1;
|
|
var endline = tokens[idx].lines[1];
|
|
return '<a class="part" data-startline="' + startline + '" data-endline="' + endline + '" href="' + Remarkable.utils.escapeHtml(tokens[idx].href) + '"' + title + '>';
|
|
}
|
|
return '<a href="' + Remarkable.utils.escapeHtml(tokens[idx].href) + '"' + title + '>';
|
|
};
|
|
|
|
md.renderer.rules.paragraph_open = function (tokens, idx) {
|
|
if (tokens[idx].lines && tokens[idx].level === 0) {
|
|
var startline = tokens[idx].lines[0] + 1;
|
|
var endline = tokens[idx].lines[1];
|
|
return tokens[idx].tight ? '' : '<p class="part" data-startline="' + startline + '" data-endline="' + endline + '">';
|
|
}
|
|
return tokens[idx].tight ? '' : '<p>';
|
|
};
|
|
|
|
md.renderer.rules.heading_open = function (tokens, idx) {
|
|
if (tokens[idx].lines && tokens[idx].level === 0) {
|
|
var startline = tokens[idx].lines[0] + 1;
|
|
var endline = tokens[idx].lines[1];
|
|
return '<h' + tokens[idx].hLevel + ' class="part" data-startline="' + startline + '" data-endline="' + endline + '">';
|
|
}
|
|
return '<h' + tokens[idx].hLevel + '>';
|
|
};
|
|
|
|
md.renderer.rules.image = function (tokens, idx, options /*, env */ ) {
|
|
var src = ' src="' + Remarkable.utils.escapeHtml(tokens[idx].src) + '"';
|
|
var title = tokens[idx].title ? (' title="' + Remarkable.utils.escapeHtml(Remarkable.utils.replaceEntities(tokens[idx].title)) + '"') : '';
|
|
var alt = ' alt="' + (tokens[idx].alt ? Remarkable.utils.escapeHtml(Remarkable.utils.replaceEntities(tokens[idx].alt)) : '') + '"';
|
|
var suffix = options.xhtmlOut ? ' /' : '';
|
|
return '<img class="raw"' + src + alt + title + suffix + '>';
|
|
}
|
|
|
|
md.renderer.rules.fence = function (tokens, idx, options, env, self) {
|
|
var token = tokens[idx];
|
|
var langClass = '';
|
|
var langPrefix = options.langPrefix;
|
|
var langName = '',
|
|
fenceName;
|
|
var highlighted;
|
|
|
|
if (token.params) {
|
|
|
|
//
|
|
// ```foo bar
|
|
//
|
|
// Try custom renderer "foo" first. That will simplify overwrite
|
|
// for diagrams, latex, and any other fenced block with custom look
|
|
//
|
|
|
|
fenceName = token.params.split(/\s+/g)[0];
|
|
|
|
if (Remarkable.utils.has(self.rules.fence_custom, fenceName)) {
|
|
return self.rules.fence_custom[fenceName](tokens, idx, options, env, self);
|
|
}
|
|
|
|
langName = Remarkable.utils.escapeHtml(Remarkable.utils.replaceEntities(Remarkable.utils.unescapeMd(fenceName)));
|
|
langClass = ' class="' + langPrefix + langName.replace('=', '') + ' hljs"';
|
|
}
|
|
|
|
if (options.highlight) {
|
|
highlighted = options.highlight(token.content, langName) || Remarkable.utils.escapeHtml(token.content);
|
|
} else {
|
|
highlighted = Remarkable.utils.escapeHtml(token.content);
|
|
}
|
|
|
|
if (tokens[idx].lines && tokens[idx].level === 0) {
|
|
var startline = tokens[idx].lines[0] + 1;
|
|
var endline = tokens[idx].lines[1];
|
|
return '<pre class="part" data-startline="' + startline + '" data-endline="' + endline + '"><code' + langClass + '>' + highlighted + '</code></pre>' + md.renderer.getBreak(tokens, idx);
|
|
}
|
|
|
|
return '<pre><code' + langClass + '>' + highlighted + '</code></pre>' + md.renderer.getBreak(tokens, idx);
|
|
};
|
|
|
|
md.renderer.rules.code = function (tokens, idx /*, options, env */ ) {
|
|
if (tokens[idx].block) {
|
|
if (tokens[idx].lines && tokens[idx].level === 0) {
|
|
var startline = tokens[idx].lines[0] + 1;
|
|
var endline = tokens[idx].lines[1];
|
|
return '<pre class="part" data-startline="' + startline + '" data-endline="' + endline + '"><code>' + Remarkable.utils.escapeHtml(tokens[idx].content) + '</code></pre>' + md.renderer.getBreak(tokens, idx);
|
|
}
|
|
|
|
return '<pre><code>' + Remarkable.utils.escapeHtml(tokens[idx].content) + '</code></pre>' + md.renderer.getBreak(tokens, idx);
|
|
}
|
|
|
|
if (tokens[idx].lines && tokens[idx].level === 0) {
|
|
var startline = tokens[idx].lines[0] + 1;
|
|
var endline = tokens[idx].lines[1];
|
|
return '<code class="part" data-startline="' + startline + '" data-endline="' + endline + '">' + Remarkable.utils.escapeHtml(tokens[idx].content) + '</code>';
|
|
}
|
|
|
|
return '<code>' + Remarkable.utils.escapeHtml(tokens[idx].content) + '</code>';
|
|
};
|
|
|
|
//var editorScrollThrottle = 100;
|
|
var buildMapThrottle = 100;
|
|
|
|
var viewScrolling = false;
|
|
var viewScrollingDelay = 200;
|
|
var viewScrollingTimer = null;
|
|
|
|
//editor.on('scroll', _.throttle(syncScrollToView, editorScrollThrottle));
|
|
editor.on('scroll', syncScrollToView);
|
|
ui.area.view.on('scroll', function () {
|
|
viewScrolling = true;
|
|
clearTimeout(viewScrollingTimer);
|
|
viewScrollingTimer = setTimeout(function () {
|
|
viewScrolling = false;
|
|
}, viewScrollingDelay);
|
|
});
|
|
//editor.on('scroll', _.debounce(syncScrollToView, syncScrollDelay));
|
|
//ui.area.view.on('scroll', _.debounce(syncScrollToEdit, 50));
|
|
|
|
var scrollMap, lineHeightMap;
|
|
|
|
viewAjaxCallback = clearMap;
|
|
|
|
function clearMap() {
|
|
scrollMap = null;
|
|
lineHeightMap = null;
|
|
}
|
|
|
|
var buildMap = _.throttle(buildMapInner, buildMapThrottle);
|
|
|
|
// Build offsets for each line (lines can be wrapped)
|
|
// That's a bit dirty to process each line everytime, but ok for demo.
|
|
// Optimizations are required only for big texts.
|
|
function buildMapInner(syncBack) {
|
|
var i, offset, nonEmptyList, pos, a, b, _lineHeightMap, linesCount,
|
|
acc, sourceLikeDiv, textarea = ui.area.codemirror,
|
|
wrap = $('.CodeMirror-wrap pre'),
|
|
_scrollMap;
|
|
|
|
sourceLikeDiv = $('<div />').css({
|
|
position: 'absolute',
|
|
visibility: 'hidden',
|
|
height: 'auto',
|
|
width: wrap.width(),
|
|
'font-size': textarea.css('font-size'),
|
|
'font-family': textarea.css('font-family'),
|
|
'line-height': textarea.css('line-height'),
|
|
'word-wrap': wrap.css('word-wrap'),
|
|
'white-space': wrap.css('white-space'),
|
|
'word-break': wrap.css('word-break'),
|
|
'tab-size': '38px'
|
|
}).appendTo('body');
|
|
|
|
offset = ui.area.view.scrollTop() - ui.area.view.offset().top;
|
|
_scrollMap = [];
|
|
nonEmptyList = [];
|
|
_lineHeightMap = [];
|
|
|
|
acc = 0;
|
|
var lines = editor.getValue().split('\n');
|
|
var lineHeight = parseFloat(sourceLikeDiv.css('line-height'));
|
|
var div = sourceLikeDiv[0];
|
|
for (i = 0; i < lines.length; i++) {
|
|
var str = lines[i];
|
|
var h, lh;
|
|
|
|
_lineHeightMap.push(acc);
|
|
|
|
if (str.length === 0) {
|
|
acc++;
|
|
continue;
|
|
}
|
|
|
|
sourceLikeDiv.text(str);
|
|
h = parseFloat(div.clientHeight);
|
|
acc += Math.round(h / lineHeight);
|
|
}
|
|
sourceLikeDiv.remove();
|
|
_lineHeightMap.push(acc);
|
|
linesCount = acc;
|
|
|
|
for (i = 0; i < linesCount; i++) {
|
|
_scrollMap.push(-1);
|
|
}
|
|
|
|
nonEmptyList.push(0);
|
|
_scrollMap[0] = 0;
|
|
|
|
var parts = ui.area.markdown.find('.part').toArray();
|
|
for (i = 0; i < parts.length; i++) {
|
|
var $el = $(parts[i]),
|
|
t = $el.attr('data-startline') - 1;
|
|
if (t === '') {
|
|
return;
|
|
}
|
|
t = _lineHeightMap[t];
|
|
if (t !== 0) {
|
|
nonEmptyList.push(t);
|
|
}
|
|
_scrollMap[t] = Math.round($el.offset().top + offset);
|
|
}
|
|
|
|
nonEmptyList.push(linesCount);
|
|
_scrollMap[linesCount] = ui.area.view[0].scrollHeight;
|
|
|
|
pos = 0;
|
|
for (i = 1; i < linesCount; i++) {
|
|
if (_scrollMap[i] !== -1) {
|
|
pos++;
|
|
continue;
|
|
}
|
|
|
|
a = nonEmptyList[pos];
|
|
b = nonEmptyList[pos + 1];
|
|
_scrollMap[i] = Math.round((_scrollMap[b] * (i - a) + _scrollMap[a] * (b - i)) / (b - a));
|
|
}
|
|
|
|
_scrollMap[0] = 0;
|
|
|
|
scrollMap = _scrollMap;
|
|
lineHeightMap = _lineHeightMap;
|
|
|
|
if (loaded && syncBack)
|
|
syncScrollToView();
|
|
}
|
|
|
|
function getPartByEditorLineNo(lineNo) {
|
|
var part = null;
|
|
ui.area.markdown.find('.part').each(function (n, el) {
|
|
if (part) return;
|
|
var $el = $(el),
|
|
t = $el.data('startline') - 1,
|
|
f = $el.data('endline') - 1;
|
|
if (t === '' || f === '') {
|
|
return;
|
|
}
|
|
if (lineNo >= t && lineNo <= f) {
|
|
part = $el;
|
|
}
|
|
});
|
|
if (part)
|
|
return {
|
|
startline: part.data('startline') - 1,
|
|
endline: part.data('endline') - 1,
|
|
linediff: Math.abs(part.data('endline') - part.data('startline')) + 1,
|
|
element: part
|
|
};
|
|
else
|
|
return null;
|
|
}
|
|
|
|
function getEditorLineNoByTop(top) {
|
|
for (var i = 0; i < lineHeightMap.length; i++)
|
|
if (lineHeightMap[i] * editor.defaultTextHeight() > top)
|
|
return i;
|
|
return null;
|
|
}
|
|
|
|
function syncScrollToView(event, _lineNo) {
|
|
if (currentMode != modeType.both) return;
|
|
var lineNo, posTo;
|
|
var scrollInfo = editor.getScrollInfo();
|
|
if (!scrollMap || !lineHeightMap) {
|
|
buildMap(true);
|
|
return;
|
|
}
|
|
if (!_lineNo) {
|
|
var topDiffPercent, posToNextDiff;
|
|
var textHeight = editor.defaultTextHeight();
|
|
lineNo = Math.floor(scrollInfo.top / textHeight);
|
|
//if reach bottom, then scroll to end
|
|
if (scrollInfo.height > scrollInfo.clientHeight && scrollInfo.top + scrollInfo.clientHeight >= scrollInfo.height - defaultTextHeight) {
|
|
posTo = ui.area.view[0].scrollHeight - ui.area.view.height();
|
|
} else {
|
|
topDiffPercent = (scrollInfo.top % textHeight) / textHeight;
|
|
posTo = scrollMap[lineNo];
|
|
posToNextDiff = (scrollMap[lineNo + 1] - posTo) * topDiffPercent;
|
|
posTo += Math.floor(posToNextDiff);
|
|
}
|
|
} else {
|
|
if (viewScrolling) return;
|
|
posTo = scrollMap[lineHeightMap[_lineNo]];
|
|
}
|
|
var posDiff = Math.abs(ui.area.view.scrollTop() - posTo);
|
|
var duration = posDiff / 50;
|
|
ui.area.view.stop(true, true).animate({
|
|
scrollTop: posTo
|
|
}, duration >= 100 ? duration : 100, "linear");
|
|
/*
|
|
if (posDiff > scrollInfo.clientHeight / 5) {
|
|
var duration = posDiff / 50;
|
|
ui.area.view.stop(true, true).animate({
|
|
scrollTop: posTo
|
|
}, duration >= 100 ? duration : 100, "linear");
|
|
} else {
|
|
ui.area.view.stop(true, true).scrollTop(posTo);
|
|
}
|
|
*/
|
|
} |