75 lines
3 KiB
JavaScript
75 lines
3 KiB
JavaScript
$(function () {
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window.register_dmmd_preview = function ($preview) {
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var $form = $preview.parents('form').first();
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var $update = $preview.find('.dmmd-preview-update');
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var $content = $preview.find('.dmmd-preview-content');
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var preview_url = $preview.attr('data-preview-url');
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var $textarea = $('#' + $preview.attr('data-textarea-id'));
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// Submit the form if Ctrl+Enter is pressed in pagedown textarea.
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$textarea.keydown(function (ev) {
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// Ctrl+Enter pressed (metaKey used to support command key on mac).
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if ((ev.metaKey || ev.ctrlKey) && ev.which == 13) {
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$form.submit();
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}
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});
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$update.click(function () {
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var text = $textarea.val();
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if (text) {
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$preview.addClass('dmmd-preview-stale');
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$.post(preview_url, {
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preview: text,
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csrfmiddlewaretoken: $.cookie('csrftoken')
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}, function (result) {
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$content.html(result);
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$(".dmmd-preview-content [data-src]img").each(function() {
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$(this).attr("src", $(this).attr("data-src"));
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})
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$(".dmmd-preview-content [data-src]iframe").each(function() {
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$(this).attr("src", $(this).attr("data-src"));
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})
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$preview.addClass('dmmd-preview-has-content').removeClass('dmmd-preview-stale');
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renderKatex($content[0]);
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});
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} else {
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$content.empty();
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$preview.removeClass('dmmd-preview-has-content').removeClass('dmmd-preview-stale');
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}
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}).click();
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var timeout = $preview.attr('data-timeout');
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var last_event = null;
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var last_text = $textarea.val();
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if (timeout) {
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$textarea.on('keyup paste', function () {
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var text = $textarea.val();
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if (last_text == text) return;
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last_text = text;
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$preview.addClass('dmmd-preview-stale');
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if (last_event)
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clearTimeout(last_event);
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last_event = setTimeout(function () {
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$update.click();
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last_event = null;
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}, timeout);
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});
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}
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};
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$('.dmmd-preview').each(function () {
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register_dmmd_preview($(this));
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});
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if ('django' in window && 'jQuery' in window.django)
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django.jQuery(document).on('formset:added', function(event, $row) {
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var $preview = $row.find('.dmmd-preview');
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if ($preview.length) {
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var id = $row.attr('id');
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id = id.substr(id.lastIndexOf('-') + 1);
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$preview.attr('data-textarea-id', $preview.attr('data-textarea-id').replace('__prefix__', id));
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register_dmmd_preview($preview);
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}
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});
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});
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