54 行
1.6 KiB
JavaScript
54 行
1.6 KiB
JavaScript
$(function () {
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function slideSeparatorLines(text) {
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var lines = text.split('\n');
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var separatorLineNumbers = [];
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for (i = 0; i < lines.length; i++) {
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var line = lines[i];
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if (line === '---') {
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separatorLineNumbers.push(i);
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}
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}
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return separatorLineNumbers;
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}
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function currentCursorSlide(cursorLine) {
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var text = ace.edit("editor").getValue();
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var separatorPositions = slideSeparatorLines(text);
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var slideNumber = separatorPositions.length;
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separatorPositions.every(function (pos, num) {
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if (pos >= cursorLine) {
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slideNumber = num;
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return false;
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}
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return true;
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});
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return slideNumber;
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}
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var editor = ace.edit("editor");
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editor.setTheme("ace/theme/chrome");
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editor.getSession().setMode("ace/mode/markdown");
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editor.getSession().setUseWrapMode(true);
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editor.setShowPrintMargin(true);
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$.get('/slides.md', function (data) {
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editor.setValue(data, -1);
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});
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var lastSRow = -1;
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ace.edit('editor').getSession().selection.on('changeCursor', function (e) {
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var cursorRow = ace.edit('editor').getCursorPosition().row;
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if (lastSRow === cursorRow) {
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return; // no update
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}
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lastSRow = cursorRow;
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var currentSlide = currentCursorSlide(cursorRow);
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$('#slides-frame')[0].contentWindow.postMessage(JSON.stringify({
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method: 'slide',
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args: [currentSlide]
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}), window.location.origin);
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});
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});
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