Add support for rich text editing with CodeMirror

css/codemirror.css

@@ -0,0 +1,346 @@
+/* BASICS */
+
+.CodeMirror {
+ /* Set height, width, borders, and global font properties here */
+ font-family: monospace;
+ height: 300px;
+ color: black;
+ direction: ltr;
+}
+
+/* PADDING */
+
+.CodeMirror-lines {
+ padding: 4px 0; /* Vertical padding around content */
+}
+.CodeMirror pre {
+ padding: 0 4px; /* Horizontal padding of content */
+}
+
+.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
+ background-color: white; /* The little square between H and V scrollbars */
+}
+
+/* GUTTER */
+
+.CodeMirror-gutters {
+ border-right: 1px solid #ddd;
+ background-color: #f7f7f7;
+ white-space: nowrap;
+}
+.CodeMirror-linenumbers {}
+.CodeMirror-linenumber {
+ padding: 0 3px 0 5px;
+ min-width: 20px;
+ text-align: right;
+ color: #999;
+ white-space: nowrap;
+}
+
+.CodeMirror-guttermarker { color: black; }
+.CodeMirror-guttermarker-subtle { color: #999; }
+
+/* CURSOR */
+
+.CodeMirror-cursor {
+ border-left: 1px solid black;
+ border-right: none;
+ width: 0;
+}
+/* Shown when moving in bi-directional text */
+.CodeMirror div.CodeMirror-secondarycursor {
+ border-left: 1px solid silver;
+}
+.cm-fat-cursor .CodeMirror-cursor {
+ width: auto;
+ border: 0 !important;
+ background: #7e7;
+}
+.cm-fat-cursor div.CodeMirror-cursors {
+ z-index: 1;
+}
+.cm-fat-cursor-mark {
+ background-color: rgba(20, 255, 20, 0.5);
+ -webkit-animation: blink 1.06s steps(1) infinite;
+ -moz-animation: blink 1.06s steps(1) infinite;
+ animation: blink 1.06s steps(1) infinite;
+}
+.cm-animate-fat-cursor {
+ width: auto;
+ border: 0;
+ -webkit-animation: blink 1.06s steps(1) infinite;
+ -moz-animation: blink 1.06s steps(1) infinite;
+ animation: blink 1.06s steps(1) infinite;
+ background-color: #7e7;
+}
+@-moz-keyframes blink {
+ 0% {}
+ 50% { background-color: transparent; }
+ 100% {}
+}
+@-webkit-keyframes blink {
+ 0% {}
+ 50% { background-color: transparent; }
+ 100% {}
+}
+@keyframes blink {
+ 0% {}
+ 50% { background-color: transparent; }
+ 100% {}
+}
+
+/* Can style cursor different in overwrite (non-insert) mode */
+.CodeMirror-overwrite .CodeMirror-cursor {}
+
+.cm-tab { display: inline-block; text-decoration: inherit; }
+
+.CodeMirror-rulers {
+ position: absolute;
+ left: 0; right: 0; top: -50px; bottom: -20px;
+ overflow: hidden;
+}
+.CodeMirror-ruler {
+ border-left: 1px solid #ccc;
+ top: 0; bottom: 0;
+ position: absolute;
+}
+
+/* DEFAULT THEME */
+
+.cm-s-default .cm-header {color: blue;}
+.cm-s-default .cm-quote {color: #090;}
+.cm-negative {color: #d44;}
+.cm-positive {color: #292;}
+.cm-header, .cm-strong {font-weight: bold;}
+.cm-em {font-style: italic;}
+.cm-link {text-decoration: underline;}
+.cm-strikethrough {text-decoration: line-through;}
+
+.cm-s-default .cm-keyword {color: #708;}
+.cm-s-default .cm-atom {color: #219;}
+.cm-s-default .cm-number {color: #164;}
+.cm-s-default .cm-def {color: #00f;}
+.cm-s-default .cm-variable,
+.cm-s-default .cm-punctuation,
+.cm-s-default .cm-property,
+.cm-s-default .cm-operator {}
+.cm-s-default .cm-variable-2 {color: #05a;}
+.cm-s-default .cm-variable-3, .cm-s-default .cm-type {color: #085;}
+.cm-s-default .cm-comment {color: #a50;}
+.cm-s-default .cm-string {color: #a11;}
+.cm-s-default .cm-string-2 {color: #f50;}
+.cm-s-default .cm-meta {color: #555;}
+.cm-s-default .cm-qualifier {color: #555;}
+.cm-s-default .cm-builtin {color: #30a;}
+.cm-s-default .cm-bracket {color: #997;}
+.cm-s-default .cm-tag {color: #170;}
+.cm-s-default .cm-attribute {color: #00c;}
+.cm-s-default .cm-hr {color: #999;}
+.cm-s-default .cm-link {color: #00c;}
+
+.cm-s-default .cm-error {color: #f00;}
+.cm-invalidchar {color: #f00;}
+
+.CodeMirror-composing { border-bottom: 2px solid; }
+
+/* Default styles for common addons */
+
+div.CodeMirror span.CodeMirror-matchingbracket {color: #0b0;}
+div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #a22;}
+.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); }
+.CodeMirror-activeline-background {background: #e8f2ff;}
+
+/* STOP */
+
+/* The rest of this file contains styles related to the mechanics of
+ the editor. You probably shouldn't touch them. */
+
+.CodeMirror {
+ position: relative;
+ overflow: hidden;
+ background: white;
+}
+
+.CodeMirror-scroll {
+ overflow: scroll !important; /* Things will break if this is overridden */
+ /* 30px is the magic margin used to hide the element's real scrollbars */
+ /* See overflow: hidden in .CodeMirror */
+ margin-bottom: -30px; margin-right: -30px;
+ padding-bottom: 30px;
+ height: 100%;
+ outline: none; /* Prevent dragging from highlighting the element */
+ position: relative;
+}
+.CodeMirror-sizer {
+ position: relative;
+ border-right: 30px solid transparent;
+}
+
+/* The fake, visible scrollbars. Used to force redraw during scrolling
+ before actual scrolling happens, thus preventing shaking and
+ flickering artifacts. */
+.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
+ position: absolute;
+ z-index: 6;
+ display: none;
+}
+.CodeMirror-vscrollbar {
+ right: 0; top: 0;
+ overflow-x: hidden;
+ overflow-y: scroll;
+}
+.CodeMirror-hscrollbar {
+ bottom: 0; left: 0;
+ overflow-y: hidden;
+ overflow-x: scroll;
+}
+.CodeMirror-scrollbar-filler {
+ right: 0; bottom: 0;
+}
+.CodeMirror-gutter-filler {
+ left: 0; bottom: 0;
+}
+
+.CodeMirror-gutters {
+ position: absolute; left: 0; top: 0;
+ min-height: 100%;
+ z-index: 3;
+}
+.CodeMirror-gutter {
+ white-space: normal;
+ height: 100%;
+ display: inline-block;
+ vertical-align: top;
+ margin-bottom: -30px;
+}
+.CodeMirror-gutter-wrapper {
+ position: absolute;
+ z-index: 4;
+ background: none !important;
+ border: none !important;
+}
+.CodeMirror-gutter-background {
+ position: absolute;
+ top: 0; bottom: 0;
+ z-index: 4;
+}
+.CodeMirror-gutter-elt {
+ position: absolute;
+ cursor: default;
+ z-index: 4;
+}
+.CodeMirror-gutter-wrapper ::selection { background-color: transparent }
+.CodeMirror-gutter-wrapper ::-moz-selection { background-color: transparent }
+
+.CodeMirror-lines {
+ cursor: text;
+ min-height: 1px; /* prevents collapsing before first draw */
+}
+.CodeMirror pre {
+ /* Reset some styles that the rest of the page might have set */
+ -moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
+ border-width: 0;
+ background: transparent;
+ font-family: inherit;
+ font-size: inherit;
+ margin: 0;
+ white-space: pre;
+ word-wrap: normal;
+ line-height: inherit;
+ color: inherit;
+ z-index: 2;
+ position: relative;
+ overflow: visible;
+ -webkit-tap-highlight-color: transparent;
+ -webkit-font-variant-ligatures: contextual;
+ font-variant-ligatures: contextual;
+}
+.CodeMirror-wrap pre {
+ word-wrap: break-word;
+ white-space: pre-wrap;
+ word-break: normal;
+}
+
+.CodeMirror-linebackground {
+ position: absolute;
+ left: 0; right: 0; top: 0; bottom: 0;
+ z-index: 0;
+}
+
+.CodeMirror-linewidget {
+ position: relative;
+ z-index: 2;
+ padding: 0.1px; /* Force widget margins to stay inside of the container */
+}
+
+.CodeMirror-widget {}
+
+.CodeMirror-rtl pre { direction: rtl; }
+
+.CodeMirror-code {
+ outline: none;
+}
+
+/* Force content-box sizing for the elements where we expect it */
+.CodeMirror-scroll,
+.CodeMirror-sizer,
+.CodeMirror-gutter,
+.CodeMirror-gutters,
+.CodeMirror-linenumber {
+ -moz-box-sizing: content-box;
+ box-sizing: content-box;
+}
+
+.CodeMirror-measure {
+ position: absolute;
+ width: 100%;
+ height: 0;
+ overflow: hidden;
+ visibility: hidden;
+}
+
+.CodeMirror-cursor {
+ position: absolute;
+ pointer-events: none;
+}
+.CodeMirror-measure pre { position: static; }
+
+div.CodeMirror-cursors {
+ visibility: hidden;
+ position: relative;
+ z-index: 3;
+}
+div.CodeMirror-dragcursors {
+ visibility: visible;
+}
+
+.CodeMirror-focused div.CodeMirror-cursors {
+ visibility: visible;
+}
+
+.CodeMirror-selected { background: #d9d9d9; }
+.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; }
+.CodeMirror-crosshair { cursor: crosshair; }
+.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection { background: #d7d4f0; }
+.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; }
+
+.cm-searching {
+ background-color: #ffa;
+ background-color: rgba(255, 255, 0, .4);
+}
+
+/* Used to force a border model for a node */
+.cm-force-border { padding-right: .1px; }
+
+@media print {
+ /* Hide the cursor when printing */
+ .CodeMirror div.CodeMirror-cursors {
+ visibility: hidden;
+ }
+}
+
+/* See issue #2901 */
+.cm-tab-wrap-hack:after { content: ''; }
+
+/* Help users use markselection to safely style text background */
+span.CodeMirror-selectedtext { background: none; }

css/style.css

@@ -370,14 +370,31 @@ a.underline {
  width: 100%;
  height: 100%;
  color: inherit;
- font-family: "SF Mono", Menlo, monospace;
  background: none;
  outline: none;
  border: none;
- padding: 10px;
  flex: 1;
 }
 
+.editor__area .CodeMirror {
+ font-family: "SF Mono", Menlo, monospace;
+ font-size: 11px;
+}
+
+.editor__area .CodeMirror-gutters {
+ background-color: transparent;
+ border-right: 1px solid #eee;
+ padding-right: 5px;
+}
+
+.editor__area .CodeMirror-linenumber {
+ color: #ccc;
+}
+
+.editor__area .CodeMirror pre {
+ padding: 0 8px;
+}
+
 .editor__viewer {
  overflow: auto;
  border-left: 2px solid #ddd;

index.html

@@ -3,6 +3,7 @@
 <head>
  <meta charset="UTF-8">
  <title>Seed</title>
+ <link rel="stylesheet" href="/css/codemirror.css">
  <link rel="stylesheet" href="/css/style.css">
 </head>
 <body>
@@ -19,6 +20,7 @@
  firebase.initializeApp(config);
  </script>
  <script src="/third_party/bundle.min.js"></script>
+ <script src="/third_party/codemirror.min.js"></script>
  <script src="/js/core.js"></script>
  <script src="/js/editor.js"></script>
 </body>