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modified: markdown-previewer/markdownPreviewer.css

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modified:   markdown-previewer/markdownPreviewer.js
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Trent Palmer
2020-04-05 09:07:29 -07:00
parent 15c1baf09a
commit d9fe7747ec
2 changed files with 60 additions and 41 deletions
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52
markdown-previewer/markdownPreviewer.js
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@ -1,48 +1,54 @@
marked.setOptions({
breaks: true,
breaks: true
});
$(document).ready(function() {
$(document).ready(function () {
/* if there is editorText in sessionStorage, load that into
* the editor, otherwise load the default text into the editor */
if (sessionStorage.hasOwnProperty('editorText')) {
$('#editor').val(sessionStorage.editorText);
if (sessionStorage.hasOwnProperty("editorText")) {
$("#editor").val(sessionStorage.editorText);
} else {
$('#editor').val(defaultText);
};
$("#editor").val(defaultText);
}
// render the editor contents to the preview element
$('#preview').html(marked($('#editor').val()));
$("#preview").html(getMarkUp($("#editor").val()));
/* on every input event in the editor, store the editor
* contents in sessionStorage and also render the contents
* of the editor to the preview element */
$('#editor').on('input',function() {
sessionStorage.setItem('editorText',$(this).val());
$('#preview').html(marked($(this).val()));
$("#editor").on("input", function () {
sessionStorage.setItem("editorText", $(this).val());
$("#preview").html(getMarkUp($(this).val()));
scrollSync();
});
// handle eraseButton
$('#eraseButton').click(function() {
$('#editor').val('');
sessionStorage.setItem('editorText',$('#editor').val());
$('#preview').html(marked($('#editor').val()));
$("#eraseButton").click(function () {
$("#editor").val("");
sessionStorage.setItem("editorText", $("#editor").val());
$("#preview").html(getMarkUp($("#editor").val()));
});
// handle reloadButton
$('#reloadButton').click(function() {
$('#editor').val(defaultText);
sessionStorage.setItem('editorText',defaultText);
$('#preview').html(marked(defaultText));
$("#reloadButton").click(function () {
$("#editor").val(defaultText);
sessionStorage.setItem("editorText", defaultText);
$("#preview").html(getMarkUp(defaultText));
});
$('#editor').on('scroll', scrollSync);
$("#editor").on("scroll", scrollSync);
});
const scrollSync = () => {
const editorScrollable = document.getElementById('editor').scrollHeight - $('#editor').height();
const previewScrollable = document.getElementById('preview').scrollHeight - $('#preview').height();
const editorScrollRatio = $('#editor').scrollTop() === 0 ? 0 : $('#editor').scrollTop() / editorScrollable;
const editorScrollable = document.getElementById("editor").scrollHeight - $("#editor").height();
const previewScrollable = document.getElementById("preview").scrollHeight - $("#preview").height();
let editorScrollRatio = $("#editor").scrollTop() === 0 ? 0 : $("#editor").scrollTop() / editorScrollable;
if (editorScrollRatio > 0.90) { editorScrollRatio = 1.5; }
const previewScrollPosition = previewScrollable * editorScrollRatio;
$('#preview').scrollTop(previewScrollPosition);
$("#preview").scrollTop(previewScrollPosition);
};
const getMarkUp = (text) => {
return marked(text);
}