150 lines
4.6 KiB
JavaScript
150 lines
4.6 KiB
JavaScript
(function() {
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var lastTextareaPreviewed, markdownPreview, previewButtonSelector, writeButtonSelector;
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this.MarkdownPreview = (function() {
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function MarkdownPreview() {}
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MarkdownPreview.prototype.referenceThreshold = 10;
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MarkdownPreview.prototype.ajaxCache = {};
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MarkdownPreview.prototype.showPreview = function(form) {
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var mdText, preview;
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preview = form.find('.js-md-preview');
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mdText = form.find('textarea.markdown-area').val();
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if (mdText.trim().length === 0) {
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preview.text('Nothing to preview.');
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return this.hideReferencedUsers(form);
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} else {
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preview.text('Loading...');
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return this.renderMarkdown(mdText, (function(_this) {
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return function(response) {
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preview.html(response.body);
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preview.syntaxHighlight();
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return _this.renderReferencedUsers(response.references.users, form);
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};
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})(this));
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}
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};
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MarkdownPreview.prototype.renderMarkdown = function(text, success) {
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if (!window.preview_markdown_path) {
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return;
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}
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if (text === this.ajaxCache.text) {
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return success(this.ajaxCache.response);
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}
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return $.ajax({
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type: 'POST',
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url: window.preview_markdown_path,
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data: {
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text: text
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},
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dataType: 'json',
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success: (function(_this) {
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return function(response) {
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_this.ajaxCache = {
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text: text,
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response: response
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};
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return success(response);
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};
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})(this)
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});
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};
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MarkdownPreview.prototype.hideReferencedUsers = function(form) {
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var referencedUsers;
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referencedUsers = form.find('.referenced-users');
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return referencedUsers.hide();
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};
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MarkdownPreview.prototype.renderReferencedUsers = function(users, form) {
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var referencedUsers;
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referencedUsers = form.find('.referenced-users');
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if (referencedUsers.length) {
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if (users.length >= this.referenceThreshold) {
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referencedUsers.show();
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return referencedUsers.find('.js-referenced-users-count').text(users.length);
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} else {
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return referencedUsers.hide();
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}
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}
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};
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return MarkdownPreview;
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})();
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markdownPreview = new MarkdownPreview();
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previewButtonSelector = '.js-md-preview-button';
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writeButtonSelector = '.js-md-write-button';
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lastTextareaPreviewed = null;
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$.fn.setupMarkdownPreview = function() {
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var $form, form_textarea;
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$form = $(this);
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form_textarea = $form.find('textarea.markdown-area');
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form_textarea.on('input', function() {
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return markdownPreview.hideReferencedUsers($form);
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});
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return form_textarea.on('blur', function() {
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return markdownPreview.showPreview($form);
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});
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};
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$(document).on('markdown-preview:show', function(e, $form) {
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if (!$form) {
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return;
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}
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lastTextareaPreviewed = $form.find('textarea.markdown-area');
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$form.find(writeButtonSelector).parent().removeClass('active');
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$form.find(previewButtonSelector).parent().addClass('active');
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$form.find('.md-write-holder').hide();
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$form.find('.md-preview-holder').show();
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return markdownPreview.showPreview($form);
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});
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$(document).on('markdown-preview:hide', function(e, $form) {
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if (!$form) {
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return;
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}
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lastTextareaPreviewed = null;
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$form.find(writeButtonSelector).parent().addClass('active');
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$form.find(previewButtonSelector).parent().removeClass('active');
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$form.find('.md-write-holder').show();
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$form.find('textarea.markdown-area').focus();
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return $form.find('.md-preview-holder').hide();
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});
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$(document).on('markdown-preview:toggle', function(e, keyboardEvent) {
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var $target;
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$target = $(keyboardEvent.target);
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if ($target.is('textarea.markdown-area')) {
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$(document).triggerHandler('markdown-preview:show', [$target.closest('form')]);
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return keyboardEvent.preventDefault();
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} else if (lastTextareaPreviewed) {
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$target = lastTextareaPreviewed;
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$(document).triggerHandler('markdown-preview:hide', [$target.closest('form')]);
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return keyboardEvent.preventDefault();
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}
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});
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$(document).on('click', previewButtonSelector, function(e) {
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var $form;
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e.preventDefault();
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$form = $(this).closest('form');
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return $(document).triggerHandler('markdown-preview:show', [$form]);
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});
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$(document).on('click', writeButtonSelector, function(e) {
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var $form;
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e.preventDefault();
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$form = $(this).closest('form');
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return $(document).triggerHandler('markdown-preview:hide', [$form]);
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});
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}).call(this);
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