Merge pull request #137 from philomena-dev/markdown-frontend

Markdown-based text editor

assets/css/common/_base.scss

@@ -215,7 +215,7 @@ hr {
   }
 }
 
-//textile
+// Text Editor
 blockquote {
   margin: 1em 2em;
   border: 1px dotted $foreground_color;
@@ -298,7 +298,7 @@ blockquote blockquote blockquote blockquote blockquote blockquote {
   white-space: pre-wrap;
 }
 
-.textile-syntax-reference {
+.editor-syntax-reference {
   margin-bottom: 6px;
 }
 

assets/css/common/_blocks.scss

@@ -222,3 +222,7 @@ a.block__header--single-item, .block__header a {
     display: none;
   }
 }
+
+.block__content--top-border {
+  border-top: $border;
+}

assets/css/common/_forms.scss

@@ -74,6 +74,10 @@ form p {
   box-sizing: border-box;
 }
 
+.input--resize-vertical {
+  resize: vertical;
+}
+
 .checkbox {
   margin: 0.2em 0 0 0.4em;
   padding: 0;

assets/js/markdowntoolbar.js

@@ -0,0 +1,250 @@
+/**
+ * Markdown toolbar
+ */
+
+import { $, $$ } from './utils/dom';
+
+const markdownSyntax = {
+  bold: {
+    action: wrapSelection,
+    options: { prefix: '**', shortcutKey: 'b' }
+  },
+  italics: {
+    action: wrapSelection,
+    options: { prefix: '*', shortcutKey: 'i' }
+  },
+  under: {
+    action: wrapSelection,
+    options: { prefix: '__', shortcutKey: 'u' }
+  },
+  spoiler: {
+    action: wrapSelection,
+    options: { prefix: '||', shortcutKey: 's' }
+  },
+  code: {
+    action: wrapSelectionOrLines,
+    options: {
+      prefix: '`',
+      suffix: '`',
+      prefixMultiline: '```\n',
+      suffixMultiline: '\n```',
+      singleWrap: true,
+      shortcutKey: 'e'
+    }
+  },
+  strike: {
+    action: wrapSelection,
+    options: { prefix: '~~' }
+  },
+  superscript: {
+    action: wrapSelection,
+    options: { prefix: '^' }
+  },
+  subscript: {
+    action: wrapSelection,
+    options: { prefix: '%' }
+  },
+  quote: {
+    action: wrapLines,
+    options: { prefix: '> ' }
+  },
+  link: {
+    action: insertLink,
+    options: { shortcutKey: 'l' }
+  },
+  image: {
+    action: insertLink,
+    options: { image: true, shortcutKey: 'k' }
+  },
+  escape: {
+    action: escapeSelection,
+    options: { escapeChar: '\\' }
+  }
+};
+
+function getSelections(textarea, linesOnly = false) {
+  let { selectionStart, selectionEnd } = textarea,
+      selection = textarea.value.substring(selectionStart, selectionEnd),
+      leadingSpace = '',
+      trailingSpace =  '',
+      caret;
+
+  const processLinesOnly = linesOnly instanceof RegExp ? linesOnly.test(selection) : linesOnly;
+  if (processLinesOnly) {
+    const explorer = /\n/g;
+    let startNewlineIndex = 0,
+        endNewlineIndex = textarea.value.length;
+    while (explorer.exec(textarea.value)) {
+      const { lastIndex } = explorer;
+      if (lastIndex <= selectionStart) {
+        startNewlineIndex = lastIndex;
+      }
+      else if (lastIndex > selectionEnd) {
+        endNewlineIndex = lastIndex - 1;
+        break;
+      }
+    }
+
+    selectionStart = startNewlineIndex;
+    const startRemovedValue = textarea.value.substring(selectionStart);
+    const startsWithBlankString = startRemovedValue.match(/^[\s\n]+/);
+    if (startsWithBlankString) {
+      // Offset the selection start to the first non-blank line's first non-blank character, since
+      // Some browsers treat selection up to the start of the line as including the end of the
+      // previous line
+      selectionStart += startsWithBlankString[0].length;
+    }
+    selectionEnd = endNewlineIndex;
+    selection = textarea.value.substring(selectionStart, selectionEnd);
+  }
+  else {
+    // Deselect trailing space and line break
+    for (caret = selection.length - 1; caret > 0; caret--) {
+      if (selection[caret] !== ' ' && selection[caret] !== '\n') break;
+      trailingSpace = selection[caret] + trailingSpace;
+    }
+    selection = selection.substring(0, caret + 1);
+
+    // Deselect leading space and line break
+    for (caret = 0; caret < selection.length; caret++) {
+      if (selection[caret] !== ' ' && selection[caret] !== '\n') break;
+      leadingSpace += selection[caret];
+    }
+    selection = selection.substring(caret);
+  }
+
+  return {
+    processLinesOnly,
+    selectedText: selection,
+    beforeSelection: textarea.value.substring(0, selectionStart) + leadingSpace,
+    afterSelection: trailingSpace + textarea.value.substring(selectionEnd)
+  };
+}
+
+function transformSelection(textarea, transformer, eachLine) {
+  const { selectedText, beforeSelection, afterSelection, processLinesOnly } = getSelections(textarea, eachLine),
+        // For long comments, record scrollbar position to restore it later
+        { scrollTop } = textarea;
+
+  const { newText, caretOffset } = transformer(selectedText, processLinesOnly);
+
+  textarea.value = beforeSelection + newText + afterSelection;
+
+  const newSelectionStart = caretOffset >= 1
+    ? beforeSelection.length + caretOffset
+    : textarea.value.length - afterSelection.length - caretOffset;
+
+  textarea.selectionStart = newSelectionStart;
+  textarea.selectionEnd = newSelectionStart;
+  textarea.scrollTop = scrollTop;
+  // Needed for automatic textarea resizing
+  textarea.dispatchEvent(new Event('change'));
+}
+
+function insertLink(textarea, options) {
+  let hyperlink = window.prompt(options.image ? 'Image link:' : 'Link:');
+  if (!hyperlink || hyperlink === '') return;
+
+  // Change on-site link to use relative url
+  if (!options.image && hyperlink.startsWith(window.location.origin)) {
+    hyperlink = hyperlink.substring(window.location.origin.length);
+  }
+
+  const prefix = options.image ? '![' : '[',
+        suffix = `](${hyperlink})`;
+
+  wrapSelection(textarea, { prefix, suffix });
+}
+
+function wrapSelection(textarea, options) {
+  transformSelection(textarea, selectedText => {
+    const { text = selectedText, prefix = '', suffix = options.prefix } = options,
+          emptyText = text === '';
+    let newText = text;
+
+    if (!emptyText) {
+      newText = text.replace(/(\n{2,})/g, match => {
+        return suffix + match + prefix;
+      });
+    }
+
+    newText = prefix + newText + suffix
+
+    return {
+      newText,
+      caretOffset: emptyText ? prefix.length : newText.length
+    };
+  });
+}
+
+function wrapLines(textarea, options, eachLine = true) {
+  transformSelection(textarea, (selectedText, processLinesOnly) => {
+    const { text = selectedText, singleWrap = false } = options,
+          prefix = (processLinesOnly && options.prefixMultiline) || options.prefix || '',
+          suffix = (processLinesOnly && options.suffixMultiline) || options.suffix || '',
+          emptyText = text === '';
+    let newText = singleWrap
+      ? prefix + text.trim() + suffix
+      : text.split(/\n/g).map(line => prefix + line.trim() + suffix).join('\n');
+
+    return { newText, caretOffset: emptyText ? prefix.length : newText.length };
+  }, eachLine);
+}
+
+function wrapSelectionOrLines(textarea, options) {
+  wrapLines(textarea, options, /\n/);
+}
+
+function escapeSelection(textarea, options) {
+  transformSelection(textarea, selectedText => {
+    const { text = selectedText } = options,
+          emptyText = text === '';
+
+    if (emptyText) return;
+
+    const newText = text.replace(/([*_[\]()^`%\\~<>#|])/g, '\\$1');
+
+    return {
+      newText,
+      caretOffset: newText.length
+    };
+  });
+}
+
+function clickHandler(event) {
+  const button = event.target.closest('.communication__toolbar__button');
+  if (!button) return;
+  const toolbar = button.closest('.communication__toolbar'),
+        // There may be multiple toolbars present on the page,
+        // in the case of image pages with description edit active
+        // we target the textarea that shares the same parent as the toolbar
+        textarea = $('.js-toolbar-input', toolbar.parentNode),
+        id = button.dataset.syntaxId;
+
+  markdownSyntax[id].action(textarea, markdownSyntax[id].options);
+  textarea.focus();
+}
+
+function shortcutHandler(event) {
+  if (!event.ctrlKey || (window.navigator.platform === 'MacIntel' && !event.metaKey) || event.shiftKey || event.altKey) return;
+  const textarea = event.target,
+        key = event.key.toLowerCase();
+
+  for (const id in markdownSyntax) {
+    if (key === markdownSyntax[id].options.shortcutKey) {
+      markdownSyntax[id].action(textarea, markdownSyntax[id].options);
+      event.preventDefault();
+    }
+  }
+}
+
+function setupToolbar() {
+  $$('.communication__toolbar').forEach(toolbar => {
+    toolbar.addEventListener('click', clickHandler);
+  });
+  $$('.js-toolbar-input').forEach(textarea => {
+    textarea.addEventListener('keydown', shortcutHandler);
+  });
+}
+
+export { setupToolbar };

assets/js/preview.js

@@ -1,9 +1,10 @@
 /**
- * Textile previews (posts, comments, messages)
+ * Markdown previews (posts, comments, messages)
  */
 
 import { fetchJson } from './utils/requests';
 import { filterNode } from './imagesclientside';
+import { hideEl, showEl } from './utils/dom.js';
 
 function handleError(response) {
   const errorMessage = '<div>Preview failed to load!</div>';
@@ -35,43 +36,84 @@ function commentReply(user, url, textarea, quote) {
   textarea.focus();
 }
 
-function getPreview(body, anonymous, previewTab, isImage = false) {
-  let path = '/posts/preview';
+function getPreview(body, anonymous, previewLoading, previewIdle, previewContent) {
+  const path = '/posts/preview';
+
+  if (typeof body !== 'string') return;
+
+  showEl(previewLoading);
+  hideEl(previewIdle);
 
   fetchJson('POST', path, { body, anonymous })
     .then(handleError)
     .then(data => {
-      previewTab.innerHTML = data;
-      filterNode(previewTab);
+      previewContent.innerHTML = data;
+      filterNode(previewContent);
+      showEl(previewIdle);
+      hideEl(previewLoading);
     });
 }
 
+/**
+ * Resizes the event target <textarea> to match the size of its contained text, between set
+ * minimum and maximum height values. Former comes from CSS, latter is hard coded below.
+ * @template {{ target: HTMLTextAreaElement }} E
+ * @param {E} e
+ */
+function resizeTextarea(e) {
+  // Reset inline height for fresh calculations
+  e.target.style.height = '';
+  const { borderTopWidth, borderBottomWidth, height } = window.getComputedStyle(e.target);
+  // Add scrollHeight and borders (because border-box) to get the target size that avoids scrollbars
+  const contentHeight = e.target.scrollHeight + parseFloat(borderTopWidth) + parseFloat(borderBottomWidth);
+  // Get the original default height provided by page styles
+  const regularHeight = parseFloat(height);
+  // Limit textarea's size to between the original height and 1000px
+  const newHeight = Math.max(regularHeight, Math.min(1000, contentHeight));
+  e.target.style.height = `${newHeight}px`;
+}
+
 function setupPreviews() {
   let textarea = document.querySelector('.js-preview-input');
-  let imageDesc = false;
 
   if (!textarea) {
     textarea = document.querySelector('.js-preview-description');
-    imageDesc = true;
   }
 
   const previewButton = document.querySelector('a[data-click-tab="preview"]');
-  const previewTab = document.querySelector('.block__tab[data-tab="preview"]');
-  const previewAnon = document.querySelector('.preview-anonymous') || false;
+  const previewLoading = document.querySelector('.js-preview-loading');
+  const previewIdle = document.querySelector('.js-preview-idle');
+  const previewContent = document.querySelector('.js-preview-content');
+  const previewAnon = document.querySelector('.js-preview-anonymous') || false;
 
-  if (!textarea || !previewButton) {
+  if (!textarea || !previewContent) {
     return;
   }
 
-  previewButton.addEventListener('click', () => {
-    if (previewTab.previewedText === textarea.value) return;
-    previewTab.previewedText = textarea.value;
+  const getCacheKey = () => {
+    return (previewAnon && previewAnon.checked ? 'anon;' : '') + textarea.value;
+  }
 
-    getPreview(textarea.value, Boolean(previewAnon.checked), previewTab, imageDesc);
-  });
+  const previewedTextAttribute = 'data-previewed-text';
+  const updatePreview = () => {
+    const cachedValue = getCacheKey()
+    if (previewContent.getAttribute(previewedTextAttribute) === cachedValue) return;
+    previewContent.setAttribute(previewedTextAttribute, cachedValue);
+
+    getPreview(textarea.value, previewAnon && previewAnon.checked, previewLoading, previewIdle, previewContent);
+  };
+
+  previewButton.addEventListener('click', updatePreview);
+  textarea.addEventListener('change', resizeTextarea);
+  textarea.addEventListener('keyup', resizeTextarea);
+
+  // Fire handler for automatic resizing if textarea contains text on page load (e.g. editing)
+  if (textarea.value) textarea.dispatchEvent(new Event('change'));
 
   previewAnon && previewAnon.addEventListener('click', () => {
-    getPreview(textarea.value, Boolean(previewAnon.checked), previewTab, imageDesc);
+    if (previewContent.classList.contains('hidden')) return;
+
+    updatePreview();
   });
 
   document.addEventListener('click', event => {

assets/js/textiletoolbar.js

@@ -1,172 +0,0 @@
-/**
- * Textile toolbar
- *
- */
-
-import { $, $$ } from './utils/dom';
-
-const textileSyntax = {
-  bold: {
-    action: wrapSelection,
-    options: { prefix: '*', suffix: '*', shortcutKey: 'b', type: 'inline' }
-  },
-  italics: {
-    action: wrapSelection,
-    options: { prefix: '_', suffix: '_', shortcutKey: 'i', type: 'inline' }
-  },
-  under: {
-    action: wrapSelection,
-    options: { prefix: '+', suffix: '+', shortcutKey: 'u', type: 'inline' }
-  },
-  spoiler: {
-    action: wrapSelection,
-    options: { prefix: '[spoiler]', suffix: '[/spoiler]', shortcutKey: 's' }
-  },
-  code: {
-    action: wrapSelection,
-    options: { prefix: '@', suffix: '@', shortcutKey: 'e', type: 'inline' }
-  },
-  strike: {
-    action: wrapSelection,
-    options: { prefix: '-', suffix: '-', type: 'inline' }
-  },
-  superscript: {
-    action: wrapSelection,
-    options: { prefix: '^', suffix: '^', type: 'inline' }
-  },
-  subscript: {
-    action: wrapSelection,
-    options: { prefix: '~', suffix: '~', type: 'inline' }
-  },
-  quote: {
-    action: wrapSelection,
-    options: { prefix: '[bq]', suffix: '[/bq]' }
-  },
-  link: {
-    action: insertLink,
-    options: { prefix: '"', suffix: '":', shortcutKey: 'l' }
-  },
-  image: {
-    action: insertImage,
-    options: { prefix: '!', suffix: '!', shortcutKey: 'k' }
-  },
-  noParse: {
-    action: wrapSelection,
-    options: { prefix: '[==', suffix: '==]' }
-  },
-};
-
-function getSelections(textarea) {
-  let selection = textarea.value.substring(textarea.selectionStart, textarea.selectionEnd),
-      leadingSpace = '',
-      trailingSpace = '',
-      caret;
-
-  // Deselect trailing space and line break
-  for (caret = selection.length - 1; caret > 0; caret--) {
-    if (selection[caret] !== ' ' && selection[caret] !== '\n') break;
-    trailingSpace = selection[caret] + trailingSpace;
-  }
-  selection = selection.substring(0, caret + 1);
-
-  // Deselect leading space and line break
-  for (caret = 0; caret < selection.length; caret++) {
-    if (selection[caret] !== ' ' && selection[caret] !== '\n') break;
-    leadingSpace += selection[caret];
-  }
-  selection = selection.substring(caret);
-
-  return {
-    selectedText: selection,
-    beforeSelection: textarea.value.substring(0, textarea.selectionStart) + leadingSpace,
-    afterSelection: trailingSpace + textarea.value.substring(textarea.selectionEnd),
-  };
-}
-
-function wrapSelection(textarea, options) {
-  const { selectedText, beforeSelection, afterSelection } = getSelections(textarea),
-        { text = selectedText, prefix = '', suffix = '', type } = options,
-        // For long comments, record scrollbar position to restore it later
-        scrollTop = textarea.scrollTop,
-        emptyText = text === '';
-
-  const newText = text;
-
-  if (type === 'inline' && newText.includes('\n')) {
-    textarea.value = `${beforeSelection}[${prefix}${newText}${suffix}]${afterSelection}`;
-  }
-  else {
-    textarea.value = `${beforeSelection}${prefix}${newText}${suffix}${afterSelection}`;
-  }
-
-  // If no text were highlighted, place the caret inside
-  // the formatted section, otherwise place it at the end
-  if (emptyText) {
-    textarea.selectionEnd = textarea.value.length - afterSelection.length - suffix.length;
-  }
-  else {
-    textarea.selectionEnd = textarea.value.length - afterSelection.length;
-  }
-  textarea.selectionStart = textarea.selectionEnd;
-  textarea.scrollTop = scrollTop;
-}
-
-function insertLink(textarea, options) {
-  let hyperlink = window.prompt('Link:');
-  if (!hyperlink || hyperlink === '') return;
-
-  // Change on-site link to use relative url
-  if (hyperlink.startsWith(window.location.origin)) hyperlink = hyperlink.substring(window.location.origin.length);
-
-  const prefix = options.prefix,
-        suffix = options.suffix + hyperlink;
-
-  wrapSelection(textarea, { prefix, suffix });
-}
-
-function insertImage(textarea, options) {
-  const hyperlink          = window.prompt('Image link:');
-  const { prefix, suffix } = options;
-
-  if (!hyperlink || hyperlink === '') return;
-
-  wrapSelection(textarea, { text: hyperlink, prefix, suffix });
-}
-
-function clickHandler(event) {
-  const button = event.target.closest('.communication__toolbar__button');
-  if (!button) return;
-  const toolbar  = button.closest('.communication__toolbar'),
-        // There may be multiple toolbars present on the page,
-        // in the case of image pages with description edit active
-        // we target the textarea that shares the same parent as the toolabr
-        textarea = $('.js-toolbar-input', toolbar.parentNode),
-        id       = button.dataset.syntaxId;
-
-  textileSyntax[id].action(textarea, textileSyntax[id].options);
-  textarea.focus();
-}
-
-function shortcutHandler(event) {
-  if (!event.ctrlKey || (window.navigator.platform === 'MacIntel' && !event.metaKey) || event.shiftKey || event.altKey) return;
-  const textarea = event.target,
-        key      = event.key.toLowerCase();
-
-  for (const id in textileSyntax) {
-    if (key === textileSyntax[id].options.shortcutKey) {
-      textileSyntax[id].action(textarea, textileSyntax[id].options);
-      event.preventDefault();
-    }
-  }
-}
-
-function setupToolbar() {
-  $$('.communication__toolbar').forEach(toolbar => {
-    toolbar.addEventListener('click', clickHandler);
-  });
-  $$('.js-toolbar-input').forEach(textarea => {
-    textarea.addEventListener('keydown', shortcutHandler);
-  });
-}
-
-export { setupToolbar };

assets/js/when-ready.js

@@ -31,7 +31,7 @@ import { setupTagEvents }       from './tagsmisc';
 import { setupTimestamps }      from './timeago';
 import { setupImageUpload }     from './upload';
 import { setupSearch }          from './search';
-import { setupToolbar }         from './textiletoolbar';
+import { setupToolbar }         from './markdowntoolbar.js';
 import { hideStaffTools }       from './staffhider';
 import { pollOptionCreator }    from './poll';
 

lib/philomena_web/templates/conversation/message/_form.html.slime

@@ -1,24 +1,7 @@
 = form_for @changeset, Routes.conversation_message_path(@conn, :create, @conversation), fn f ->
   .block
-    .block__header.block__header--js-tabbed
-      a.selected href="#" data-click-tab="write"
-        i.fa.fa-pencil-alt>
-        | Reply
-
-      a href="#" data-click-tab="preview"
-        i.fa.fa-eye>
-        | Preview
-
-    .block__tab.communication-edit__tab.selected data-tab="write"
-      = render PhilomenaWeb.TextileView, "_help.html", conn: @conn
-      = render PhilomenaWeb.TextileView, "_toolbar.html", conn: @conn
-
-      .field
-        = textarea f, :body, class: "input input--wide input--text js-preview-input js-toolbar-input", placeholder: "Your message", required: true
-        = error_tag f, :body
-
-    .block__tab.communication-edit__tab.hidden data-tab="preview"
-      | [Loading preview...]
+    .communication-edit__wrap
+      = render PhilomenaWeb.MarkdownView, "_input.html", conn: @conn, f: f, action_icon: "pencil-alt", action_text: "Reply"
 
     .block__content.communication-edit__actions
-      = submit "Send", class: "button", autocomplete: "off", data: [disable_with: "Sending..."]
+      = submit "Send", class: "button", autocomplete: "off", data: [disable_with: raw("Sending…")]

lib/philomena_web/templates/conversation/new.html.slime

@@ -20,25 +20,8 @@ h1 New Conversation
     = error_tag f, :title
 
   = inputs_for f, :messages, fn fm ->
-    .block
-      .block__header.block__header--js-tabbed
-        a.selected href="#" data-click-tab="write"
-          i.fa.fa-pencil-alt>
-          | Reply
-
-        a href="#" data-click-tab="preview"
-          i.fa.fa-eye>
-          | Preview
-
-      .block__tab.communication-edit__tab.selected data-tab="write"
-        = render PhilomenaWeb.TextileView, "_help.html", conn: @conn
-        = render PhilomenaWeb.TextileView, "_toolbar.html", conn: @conn
-
-        = textarea fm, :body, class: "input input--wide input--text js-preview-input js-toolbar-input", placeholder: "Your message", required: true
-        = error_tag fm, :body
-
-      .block__tab.communication-edit__tab.hidden data-tab="preview"
-        | [Loading preview...]
+    div
+      = render PhilomenaWeb.MarkdownView, "_input.html", changeset: @changeset, conn: @conn, f: fm, action_icon: "pencil-alt", action_text: "Compose"
 
   .block__content.communication-edit__actions
     = submit "Send", class: "button", autocomplete: "off", data: [disable_with: "Sending..."]

lib/philomena_web/templates/image/comment/_form.html.slime

@@ -6,29 +6,10 @@
       p Oops, something went wrong! Please check the errors below.
 
   .block
-    .block__header.block__header--js-tabbed
-      a.selected href="#" data-click-tab="write"
-        i.fas.fa-edit>
-        ' Edit
-
-      a href="#" data-click-tab="preview"
-        i.fa.fa-eye>
-        ' Preview
-
-    .block__tab.communication-edit__tab.selected data-tab="write"
-      = render PhilomenaWeb.TextileView, "_help.html", conn: @conn
-      = render PhilomenaWeb.TextileView, "_toolbar.html", conn: @conn
-
-      .field
-        = textarea f, :body, class: "input input--wide input--text js-preview-input js-toolbar-input", placeholder: "Please read the site rules before posting and use [spoiler][/spoiler] for above-rating stuff.", required: true
-        = error_tag f, :body
-
-    .block__tab.communication-edit__tab.hidden data-tab="preview"
-      ' [Loading preview...]
+    div
+      = render PhilomenaWeb.MarkdownView, "_input.html", conn: @conn, f: f, placeholder: "Please read the site rules before posting and use ||spoilers|| for above-rating stuff."
 
     .block__content.communication-edit__actions
       => submit "Post", class: "button", data: [disable_with: raw("Posting…")]
 
-      = if @conn.assigns.current_user do
-        = checkbox f, :anonymous, value: anonymous_by_default?(@conn)
-        = label f, :anonymous, "Anonymous"
+      = render PhilomenaWeb.MarkdownView, "_anon_checkbox.html", conn: @conn, f: f

lib/philomena_web/templates/image/comment/edit.html.slime

@@ -4,29 +4,12 @@
       p Oops, something went wrong! Please check the errors below.
 
   .block
-    .block__header.block__header--js-tabbed
-      a.selected href="#" data-click-tab="write"
-        i.fas.fa-edit>
-        ' Edit
+    .communication-edit__wrap
+      = render PhilomenaWeb.MarkdownView, "_input.html", conn: @conn, f: f, placeholder: "Please read the site rules before posting and use ||spoilers|| for above-rating stuff."
 
-      a href="#" data-click-tab="preview"
-        i.fa.fa-eye>
-        ' Preview
-
-    .block__tab.communication-edit__tab.selected data-tab="write"
-      = render PhilomenaWeb.TextileView, "_help.html", conn: @conn
-      = render PhilomenaWeb.TextileView, "_toolbar.html", conn: @conn
-
-      .field
-        = textarea f, :body, class: "input input--wide input--text js-preview-input js-toolbar-input", placeholder: "Please read the site rules before posting and use [spoiler][/spoiler] for above-rating stuff.", required: true
-        = error_tag f, :body
-
-      .field
+    .block__content.field
       = text_input f, :edit_reason, class: "input input--wide", placeholder: "Reason for edit"
       = error_tag f, :edit_reason
 
-    .block__tab.communication-edit__tab.hidden data-tab="preview"
-      ' [Loading preview...]
-
     .block__content.communication-edit__actions
       => submit "Edit", class: "button", data: [disable_with: raw("Posting…")]

lib/philomena_web/templates/image/description/_form.html.slime

@@ -3,8 +3,8 @@
     .alert.alert-danger
       p Oops, something went wrong! Please check the errors below.
 
-  = render PhilomenaWeb.TextileView, "_help.html", conn: @conn
-  = render PhilomenaWeb.TextileView, "_toolbar.html", conn: @conn
+  = render PhilomenaWeb.MarkdownView, "_help.html", conn: @conn
+  = render PhilomenaWeb.MarkdownView, "_toolbar.html", conn: @conn
 
   .field
     = textarea f, :description, id: "description", class: "input input--wide js-toolbar-input", placeholder: "Describe this image in plain words - this should generally be info about the image that doesn't belong in the tags or source."

lib/philomena_web/templates/image/new.html.slime

@@ -64,24 +64,12 @@
 
   .field
     .block
-      .block__header.block__header--js-tabbed
-        = link "Description", to: "#", class: "selected", data: [click_tab: "write"]
-        = link "Preview", to: "#", data: [click_tab: "preview"]
+      .communication-edit__wrap
+        = render PhilomenaWeb.MarkdownView, "_input.html", conn: @conn, f: f, action_icon: "pencil-alt", action_text: "Description", placeholder: "Describe this image in plain words - this should generally be info about the image that doesn't belong in the tags or source."
 
-      .block__tab.selected data-tab="write"
-        = render PhilomenaWeb.TextileView, "_help.html", conn: @conn
-        = render PhilomenaWeb.TextileView, "_toolbar.html", conn: @conn
-
-        = textarea f, :description, class: "input input--wide input--text js-preview-description js-image-input js-toolbar-input", placeholder: "Describe this image in plain words - this should generally be info about the image that doesn't belong in the tags or source."
-      .block__tab.hidden data-tab="preview"
-        | Loading preview...
-
-  = if @conn.assigns.current_user do
-    .field
-      = label f, :anonymous, "Post anonymously"
-      = checkbox f, :anonymous, class: "checkbox", value: anonymous_by_default?(@conn)
+  = render PhilomenaWeb.MarkdownView, "_anon_checkbox.html", conn: @conn, f: f, label: "Post anonymously"
 
   = render PhilomenaWeb.CaptchaView, "_captcha.html", name: "image", conn: @conn
 
   .actions
-    = submit "Upload", class: "button", autocomplete: "off", data: [disable_with: "Please wait..."]
+    = submit "Upload", class: "button input--separate-top", autocomplete: "off", data: [disable_with: "Please wait..."]

lib/philomena_web/templates/markdown/_anon_checkbox.html.slime

@@ -0,0 +1,5 @@
+- f = assigns[:f]
+- label_lext = assigns[:label] || "Anonymous"
+= if @conn.assigns.current_user do
+  => checkbox f, :anonymous, value: anonymous_by_default?(@conn), class: "js-preview-anonymous"
+  = label f, :anonymous, label_lext

lib/philomena_web/templates/markdown/_help.html.slime

@@ -0,0 +1,17 @@
+.editor-syntax-reference
+  strong<> Syntax quick reference:
+
+  span
+    strong> **bold**
+    em> *italic*
+    span.spoiler> ||hide text||
+    code> `code`
+    ins> __underline__
+    del> ~~strike~~
+    sup> ^sup^
+    sub %sub%
+
+  p
+    a href="/pages/markdown"
+      i.fa.fa-question-circle>
+      strong Detailed syntax guide

lib/philomena_web/templates/markdown/_input.html.slime

@@ -0,0 +1,24 @@
+- form = assigns[:f]
+- action_text = assigns[:action_text] || 'Edit'
+- action_icon = assigns[:action_icon] || 'edit'
+- field_name = assigns[:name] || :body
+- field_placeholder = assigns[:placeholder] || "Your message"
+.block__header.block__header--js-tabbed
+  a.selected href="#" data-click-tab="write"
+    i.fa> class="fa-#{action_icon}"
+    = action_text
+
+  a href="#" data-click-tab="preview"
+    i.fa.fa-cog.fa-fw.fa-spin.js-preview-loading.hidden> title=raw('Loading preview…')
+    i.fa.fa-eye.fa-fw.js-preview-idle>
+    | Preview
+
+.block__tab.communication-edit__tab.selected.js-preview-input-wrapper data-tab="write"
+  = render PhilomenaWeb.MarkdownView, "_help.html", conn: @conn
+  = render PhilomenaWeb.MarkdownView, "_toolbar.html", conn: @conn
+
+  .field
+    = textarea form, field_name, class: "input input--wide input--text input--resize-vertical js-toolbar-input js-preview-input", placeholder: field_placeholder, required: true
+    = error_tag form, field_name
+
+.block__tab.communication-edit__tab.hidden.js-preview-content data-tab="preview"

lib/philomena_web/templates/markdown/_toolbar.html.slime

@@ -29,6 +29,6 @@
     i.fa.fa-link
   button.communication__toolbar__button tabindex="-1" type="button" title="insert image (ctrl+k)" data-syntax-id="image"
     i.fa.fa-image
-  button.communication__toolbar__button tabindex="-1" type="button" title="Text you want the parser to ignore" data-syntax-id="noParse"
+  button.communication__toolbar__button tabindex="-1" type="button" title="Text you want the parser to ignore" data-syntax-id="escape"
     span
-      | no parse
+      | escape

lib/philomena_web/templates/post/preview/create.html.slime

@@ -2,7 +2,7 @@
   .flex__fixed.spacing-right
     = render PhilomenaWeb.UserAttributionView, "_anon_user_avatar.html", object: @post, conn: @conn
 
-  .flex__grow.communication_body
+  .flex__grow.communication__body
     span.communication__body__sender-name
       = render PhilomenaWeb.UserAttributionView, "_anon_user.html", object: @post, conn: @conn, awards: true
 

lib/philomena_web/templates/profile/description/edit.html.slime

@@ -14,25 +14,8 @@ h1 Updating Profile Description
         = error_tag f, :personal_title
 
   .block
-    .block__header.block__header--js-tabbed
-      a.selected href="#" data-click-tab="write"
-        i.fas.fa-edit>
-        ' About Me
-
-      a href="#" data-click-tab="preview"
-        i.fa.fa-eye>
-        ' Preview
-
-    .block__tab.communication-edit__tab.selected data-tab="write"
-      = render PhilomenaWeb.TextileView, "_help.html", conn: @conn
-      = render PhilomenaWeb.TextileView, "_toolbar.html", conn: @conn
-
-      .field
-        = textarea f, :description, class: "input input--wide input--text js-preview-input js-toolbar-input", placeholder: "Description (up to 10000 characters)"
-        = error_tag f, :description
-
-    .block__tab.communication-edit__tab.hidden data-tab="preview"
-      ' [Loading preview...]
+    div
+      = render PhilomenaWeb.MarkdownView, "_input.html", conn: @conn, f: f, action_text: "About Me", placeholder: "Description (up to 10000 characters)", name: :description
 
     .block__content.communication-edit__actions
       => submit "Update", class: "button"

lib/philomena_web/templates/profile/scratchpad/edit.html.slime

@@ -5,25 +5,8 @@ h1 Updating Moderation Scratchpad
     .alert.alert-danger
       p Oops, something went wrong! Please check the errors below.
   .block
-    .block__header.block__header--js-tabbed
-      a.selected href="#" data-click-tab="write"
-        i.fas.fa-edit>
-        ' Scratchpad
-
-      a href="#" data-click-tab="preview"
-        i.fa.fa-eye>
-        ' Preview
-
-    .block__tab.communication-edit__tab.selected data-tab="write"
-      = render PhilomenaWeb.TextileView, "_help.html", conn: @conn
-      = render PhilomenaWeb.TextileView, "_toolbar.html", conn: @conn
-
-      .field
-        = textarea f, :scratchpad, class: "input input--wide input--text js-preview-input js-toolbar-input", placeholder: "Scratchpad Contents"
-        = error_tag f, :scratchpad
-
-    .block__tab.communication-edit__tab.hidden data-tab="preview"
-      ' [Loading preview...]
+    div
+      = render PhilomenaWeb.MarkdownView, "_input.html", conn: @conn, f: f, action_text: "Scratchpad", placeholder: "Scratchpad Contents", name: :scratchpad
 
     .block__content.communication-edit__actions
       => submit "Update", class: "button"

lib/philomena_web/templates/report/new.html.slime

@@ -45,24 +45,7 @@ p
     .field
       = select f, :category, report_categories(), class: "input"
     .block
-      .block__header.block__header--js-tabbed
-        a.selected href="#" data-click-tab="write"
-          i.fas.fa-edit>
-          ' Edit
-
-        a href="#" data-click-tab="preview"
-          i.fa.fa-eye>
-          ' Preview
-
-      .block__tab.communication-edit__tab.selected data-tab="write"
-        = render PhilomenaWeb.TextileView, "_help.html", conn: @conn
-        = render PhilomenaWeb.TextileView, "_toolbar.html", conn: @conn
-
-        .field
-          = textarea f, :reason, class: "input input--wide input--text js-preview-input js-toolbar-input", placeholder: "Provide anything else we should know here."
-
-      .block__tab.communication-edit__tab.hidden data-tab="preview"
-        ' [Loading preview...]
+      = render PhilomenaWeb.MarkdownView, "_input.html", conn: @conn, f: f, placeholder: "Provide anything else we should know here.", name: :reason
 
     = render PhilomenaWeb.CaptchaView, "_captcha.html", name: "report", conn: @conn
 

lib/philomena_web/templates/textile/_help.html.slime

@@ -1,35 +0,0 @@
-.textile-syntax-reference
-  strong<> Syntax quick reference:
-
-  span
-    strong>
-      ' *bold*
-    em> _italic_
-    span.spoiler>
-      | [spoiler]hide text[/spoiler]
-    code> @code@
-    ins> +underline+
-    del> -strike-
-    sup> ^sup^
-    sub ~sub~
-
-  button< class="button" type="button" data-click-toggle="button:hover + .textile_help, button:focus + .textile_help"
-    ' &hellip;
-
-  p.hidden.textile_help
-    ' [==stuff you don't want textile to parse==]
-    br
-
-    ins> Links:
-    ' "On-site link":/some-link, "External link":http://some-link
-    br
-
-    ins> Images:
-    ' &gt;&gt;1 — link to image, &gt;&gt;1t — embed image thumbnail (&gt;&gt;1p — large preview, &gt;&gt;1s &mdash; small thumbnail)
-    br
-
-    ins> External images:
-    ' !http://some-image!, !http://some-clickable-image!:http://some-link
-    br
-
-    strong> Remember to use embeds (&gt;&gt;) for booru images as these let users filter content they don't want to see

lib/philomena_web/templates/topic/new.html.slime

@@ -3,43 +3,26 @@
     .alert.alert-danger
       p Oops, something went wrong! Please check the errors below.
 
-  .block
-    .block__header.block__header--js-tabbed
-      a.selected href="#" data-click-tab="write"
-        i.fas.fa-pencil-alt>
-        ' Create a Topic
+  h1 Create a Topic
 
-      a href="#" data-click-tab="preview"
-        i.fa.fa-eye>
-        ' Preview
-
-    .block__tab.communication-edit__tab.selected data-tab="write"
   .field
     = text_input f, :title, class: "input input--wide", placeholder: "Title"
     = error_tag f, :title
     = error_tag f, :slug
 
+  .block
     = inputs_for f, :posts, fn fp ->
-        .field
-          = render PhilomenaWeb.TextileView, "_help.html", conn: @conn
-          = render PhilomenaWeb.TextileView, "_toolbar.html", conn: @conn
-          = textarea fp, :body, class: "input input--wide input--text js-preview-input js-toolbar-input", placeholder: "Please read the site rules before posting and use [spoiler][/spoiler] for NSFW stuff in SFW forums.", required: true
-          = error_tag fp, :body
+        = render PhilomenaWeb.MarkdownView, "_input.html", conn: @conn, f: fp, action_icon: "pencil-alt", action_text: "First Post", placeholder: "Please read the site rules before posting and use ||spoilers|| for NSFW stuff in SFW forums."
 
-      = if @conn.assigns.current_user do
-        .field
-          => checkbox f, :anonymous, value: anonymous_by_default?(@conn)
-          = label f, :anonymous, "Post anonymously"
+    .block__content.communication-edit__wrap
+      = render PhilomenaWeb.MarkdownView, "_anon_checkbox.html", conn: @conn, f: f, label: "Post anonymously"
 
       = inputs_for f, :poll, fn fp ->
-        #add-poll
+        #add-poll.field
           input.toggle-box id="add_poll" name="add_poll" type="checkbox"
           label for="add_poll" Add a poll
           .toggle-box-container
             = render PhilomenaWeb.Topic.PollView, "_form.html", Map.put(assigns, :f, fp)
 
-    .block__tab.communication-edit__tab.hidden data-tab="preview"
-      ' [Loading preview...]
-
     .block__content.communication-edit__actions
       = submit "Post", class: "button", data: [disable_with: raw("Posting…")]

lib/philomena_web/templates/topic/post/_form.html.slime

@@ -4,29 +4,10 @@
       p Oops, something went wrong! Please check the errors below.
 
   .block
-    .block__header.block__header--js-tabbed
-      a.selected href="#" data-click-tab="write"
-        i.fas.fa-edit>
-        ' Edit
-
-      a href="#" data-click-tab="preview"
-        i.fa.fa-eye>
-        ' Preview
-
-    .block__tab.communication-edit__tab.selected data-tab="write"
-      = render PhilomenaWeb.TextileView, "_help.html", conn: @conn
-      = render PhilomenaWeb.TextileView, "_toolbar.html", conn: @conn
-
-      .field
-        = textarea f, :body, class: "input input--wide input--text js-preview-input js-toolbar-input", placeholder: "Please read the site rules before posting and use [spoiler][/spoiler] for NSFW stuff in SFW forums.", required: true
-        = error_tag f, :body
-
-    .block__tab.communication-edit__tab.hidden data-tab="preview"
-      ' [Loading preview...]
+    div
+      = render PhilomenaWeb.MarkdownView, "_input.html", conn: @conn, f: f, placeholder: "Please read the site rules before posting and use ||spoilers|| for NSFW stuff in SFW forums."
 
     .block__content.communication-edit__actions
       => submit "Post", class: "button", data: [disable_with: raw("Posting…")]
 
-      = if @conn.assigns.current_user do
-        = checkbox f, :anonymous, value: anonymous_by_default?(@conn)
-        = label f, :anonymous, "Anonymous"
+      = render PhilomenaWeb.MarkdownView, "_anon_checkbox.html", conn: @conn, f: f

lib/philomena_web/templates/topic/post/edit.html.slime

@@ -4,29 +4,13 @@
       p Oops, something went wrong! Please check the errors below.
 
   .block
-    .block__header.block__header--js-tabbed
-      a.selected href="#" data-click-tab="write"
-        i.fas.fa-edit>
-        ' Edit
-
-      a href="#" data-click-tab="preview"
-        i.fa.fa-eye>
-        ' Preview
-
-    .block__tab.communication-edit__tab.selected data-tab="write"
-      = render PhilomenaWeb.TextileView, "_help.html", conn: @conn
-      = render PhilomenaWeb.TextileView, "_toolbar.html", conn: @conn
-
+    .communication-edit__wrap
       .field
-        = textarea f, :body, class: "input input--wide input--text js-preview-input js-toolbar-input", placeholder: "Please read the site rules before posting and use [spoiler][/spoiler] for above-rating stuff.", required: true
-        = error_tag f, :body
+        = render PhilomenaWeb.MarkdownView, "_input.html", conn: @conn, f: f, placeholder: "Please read the site rules before posting and use ||spoilers|| for NSFW stuff in SFW forums."
 
-      .field
+      .block__content.field
         = text_input f, :edit_reason, class: "input input--wide", placeholder: "Reason for edit"
         = error_tag f, :edit_reason
 
-    .block__tab.communication-edit__tab.hidden data-tab="preview"
-      ' [Loading preview...]
-
     .block__content.communication-edit__actions
       => submit "Edit", class: "button", data: [disable_with: raw("Posting…")]

lib/philomena_web/templates/topic/show.html.slime

@@ -108,7 +108,7 @@ h1 = @topic.title
     - true ->
 
   = if can?(@conn, :hide, @topic) do
-    .block__content
+    .block__content.block__content--top-border
       input.toggle-box id="administrator_tools" type="checkbox" checked=false
       label for="administrator_tools" Manage Topic
       .toggle-box-container

lib/philomena_web/views/image/comment_view.ex

@@ -1,7 +1,3 @@
 defmodule PhilomenaWeb.Image.CommentView do
   use PhilomenaWeb, :view
-
-  def anonymous_by_default?(conn) do
-    conn.assigns.current_user.anonymous_by_default
-  end
 end

lib/philomena_web/views/image_view.ex

@@ -175,10 +175,6 @@ defmodule PhilomenaWeb.ImageView do
 
   def scope(conn), do: PhilomenaWeb.ImageScope.scope(conn)
 
-  def anonymous_by_default?(conn) do
-    conn.assigns.current_user.anonymous_by_default
-  end
-
   def info_row(_conn, []), do: []
 
   def info_row(conn, [{tag, description, dnp_entries}]) do

lib/philomena_web/views/markdown_view.ex

@@ -0,0 +1,7 @@
+defmodule PhilomenaWeb.MarkdownView do
+  use PhilomenaWeb, :view
+
+  def anonymous_by_default?(conn) do
+    conn.assigns.current_user.anonymous_by_default
+  end
+end

lib/philomena_web/views/textile_view.ex

@@ -1,3 +0,0 @@
-defmodule PhilomenaWeb.TextileView do
-  use PhilomenaWeb, :view
-end

lib/philomena_web/views/topic/post_view.ex

@@ -1,7 +1,3 @@
 defmodule PhilomenaWeb.Topic.PostView do
   use PhilomenaWeb, :view
-
-  def anonymous_by_default?(conn) do
-    conn.assigns.current_user.anonymous_by_default
-  end
 end

lib/philomena_web/views/topic_view.ex

@@ -1,7 +1,3 @@
 defmodule PhilomenaWeb.TopicView do
   use PhilomenaWeb, :view
-
-  def anonymous_by_default?(conn) do
-    conn.assigns.current_user.anonymous_by_default
-  end
 end