feat: toolbar updates

package.json

@@ -53,7 +53,7 @@
     "vue": "^3.3.8"
   },
   "dependencies": {
-    "@kong/icons": "^1.8.7",
+    "@kong/icons": "^1.8.8",
     "@sindresorhus/slugify": "^2.2.1",
     "@vueuse/core": "^10.7.0",
     "html-format": "^1.1.2",

sandbox/App.vue

@@ -7,6 +7,8 @@
       <MarkdownUi
         v-model="content"
         :editable="editable"
+        mode="read"
+        theme="light"
         @cancel="cancelEdit"
         @mode="modeChanged"
         @save="contentSaved"
@@ -68,6 +70,6 @@ onBeforeMount(async () => {
 
 <style lang="scss" scoped>
 .sandbox-container {
-  padding: $kui-space-0 $kui-space-70;
+  padding: var(--kui-space-0, $kui-space-0) var(--kui-space-70, $kui-space-70);
 }
 </style>

sandbox/mock-document-response.ts

@@ -1,6 +1,6 @@
 export default {
   id: 'da315607-4d04-4a54-810d-45156b575932',
-  content: "# Markdown UI\n\nA markdown renderer and edit UI.\n\n## Formatting types\n\n### Code block and inline code\n\n```typescript {2}\n// TODO: Fenced code blocks need default styles\nconst name = 'Adam'\n```\n\nThis sentence has \\`inlineCode\\` in the middle.\n\n### Emoji\n\n:smile: :rocket: :tada:\n\n### Link\n\n[link](https://github.com)\n\n### Tables\n\n| Column1 | Column2 | Column3 |\n| :--- | :--- | :--- |\n| Content | Content | Content |\n\n### Todo items\n\n- [x] Todo item checked\n- [ ] Another item not checked\n\n---\n\n### Diagrams\n\n#### Mermaid\n\n```mermaid\ngitGraph\n   commit\n   commit\n   branch develop\n   checkout develop\n   commit\n   commit\n   checkout main\n   merge develop\n   commit\n   commit\n```\n\n#### Plantuml\n\n```plantuml\nBob -> Alice : hello\n```\n\n#### DOT\n\n```dot\ndigraph example1 {\n    1 -> 2 -> { 4, 5 };\n    1 -> 3 -> { 6, 7 };\n}\n```\n",
+  content: "# Markdown UI\n\nA markdown renderer and edit UI.\n\n## Formatting types\n\n### Code block and inline code\n\n```typescript\n// TODO: Fenced code blocks need default styles\nconst name = 'Adam'\n```\n\nThis sentence has \\`inlineCode\\` in the middle.\n\n### Emoji\n\n:smile: :rocket: :tada:\n\n### Link\n\n[link](https://github.com)\n\n### Tables\n\n| Column1 | Column2 | Column3 |\n| :--- | :--- | :--- |\n| Content | Content | Content |\n\n### Todo items\n\n- [x] Todo item checked\n- [ ] Another item not checked\n\n---\n\n### Diagrams\n\n#### Mermaid\n\n```mermaid\ngitGraph\n   commit\n   commit\n   branch develop\n   checkout develop\n   commit\n   commit\n   checkout main\n   merge develop\n   commit\n   commit\n```\n\n#### Plantuml\n\n```plantuml\nBob -> Alice : hello\n```\n\n#### DOT\n\n```dot\ndigraph example1 {\n    1 -> 2 -> { 4, 5 };\n    1 -> 3 -> { 6, 7 };\n}\n```\n",
   parent_document_id: null,
   slug: 'markdown',
   title: 'markdown',

src/assets/_mixins.scss

@@ -0,0 +1,57 @@
+@mixin icon-button {
+  align-items: center;
+  background-color: var(--kui-color-background-transparent, $kui-color-background-transparent);
+  border: var(--kui-border-width-20, $kui-border-width-20) solid
+    var(--kui-color-border-transparent, $kui-color-border-transparent);
+  border-radius: var(--kui-border-radius-30, $kui-border-radius-30);
+  color: var(--kui-color-text-neutral, $kui-color-text-neutral);
+  cursor: pointer;
+  display: inline-flex;
+  font-family: var(--kui-font-family-text, $kui-font-family-text);
+  font-size: var(--kui-font-size-30, $kui-font-size-30);
+  font-weight: var(--kui-font-weight-semibold, $kui-font-weight-semibold);
+  gap: var(--kui-space-30, $kui-space-30);
+  justify-content: center;
+  padding: var(--kui-space-10, $kui-space-10);
+  // Remove tap color highlight on mobile Safari
+  -webkit-tap-highlight-color: rgba(255, 255, 255, 0);
+  text-decoration: none;
+  transition:
+    background-color 0.2s ease-in-out,
+    color 0.2s ease-in-out,
+    border-color 0.2s ease-in-out;
+  user-select: none;
+  vertical-align: middle;
+  white-space: nowrap;
+
+  &:hover:not(:disabled):not(:focus):not(:active) {
+    background-color: var(--kui-color-background-neutral-weaker, $kui-color-background-neutral-weaker);
+  }
+
+  &:focus {
+    background-color: var(--kui-color-background-neutral-weaker, $kui-color-background-neutral-weaker);
+  }
+
+  &:active {
+    background-color: var(--kui-color-background-neutral-weak, $kui-color-background-neutral-weak);
+  }
+
+  &:disabled,
+  &[disabled] {
+    background-color: var(--kui-color-background-disabled, $kui-color-background-disabled);
+    box-shadow: none;
+    color: var(--kui-color-text-disabled, $kui-color-text-disabled);
+    cursor: not-allowed;
+  }
+
+  &:focus,
+  &:active,
+  &:focus-visible {
+    outline: none;
+  }
+
+  &:focus-visible {
+    // Same as $kui-shadow-focus with 2px instead of 4px
+    box-shadow: 0px 0px 0px 2px rgba(0, 68, 244, 0.2);
+  }
+}

src/components/MarkdownContent.vue

@@ -25,6 +25,8 @@ watch(() => props.content, (content: string): void => {
 </script>
 
 <style lang="scss" scoped>
+@import "../assets/mixins";
+
 // Computed component variables
 $header-anchor-offset-top: calc(var(--kui-space-50, $kui-space-50) + 2px);
 
@@ -37,28 +39,29 @@ $header-anchor-offset-top: calc(var(--kui-space-50, $kui-space-50) + 2px);
   font-weight: var(--kui-font-weight-regular, $kui-font-weight-regular);
   line-height: var(--kui-line-height-40, $kui-line-height-40);
   margin: 0;
+  // max-width: 900px;
   padding: 0 var(--kui-space-70, $kui-space-70);
   width: calc(100% - (#{$kui-space-70} * 2)); // 100% width minus 2x padding
   word-wrap: break-word;
 
   :deep() {
-    font-size: $kui-font-size-40;
-    line-height: $kui-line-height-40;
+    font-size: var(--kui-font-size-40, $kui-font-size-40);
+    line-height: var(--kui-line-height-40, $kui-line-height-40);
 
     // Adjust h2-66 tags for scroll-to margin & padding
     // Exclude the h1 header
     h2, h3, h4, h5, h6 {
-      margin-top: -$kui-space-20;
-      padding-top: $kui-space-50;
+      margin-top: calc(var(--kui-space-20, $kui-space-20) * -1);
+      padding-top: var(--kui-space-50, $kui-space-50);
       position: relative;
 
       a.header-anchor {
-        font-size: $kui-font-size-30;
+        font-size: var(--kui-font-size-30, $kui-font-size-30);
         left: 0;
         line-height: 1;
-        margin-left: -$kui-space-60;
+        margin-left: calc(var(--kui-space-60, $kui-space-60) * -1);
         opacity: 0;
-        padding-right: 4px;
+        padding-right: var(--kui-space-20, $kui-space-20);
         position: absolute;
         text-decoration: none;
         top: $header-anchor-offset-top;
@@ -80,22 +83,42 @@ $header-anchor-offset-top: calc(var(--kui-space-50, $kui-space-50) + 2px);
     // task list
     .contains-task-list {
       list-style-type: none;
-      padding-left: $kui-space-0;
+      padding-left: var(--kui-space-0, $kui-space-0);
     }
 
     // inline code
     code {
-      font-family: $kui-font-family-code;
+      font-family: var(--kui-font-family-code, $kui-font-family-code);
     }
 
     // code blocks
+    pre,
+    code {
+      white-space: pre;
+      // width: 100%;
+      word-break: normal;
+      word-spacing: normal;
+      word-wrap: normal;
+    }
+
     pre {
-      border-radius: $kui-border-radius-40;
-      font-family: $kui-font-family-code;
-      font-size: $kui-font-size-30;
-      line-height: $kui-line-height-30;
+      border: var(--kui-border-width-10, $kui-border-width-10) solid var(--kui-color-border, $kui-color-border);
+      border-radius: var(--kui-border-radius-40, $kui-border-radius-40);
+      font-family: var(--kui-font-family-code, $kui-font-family-code);
+      font-size: var(--kui-font-size-30, $kui-font-size-30);
+      line-height: var(--kui-line-height-50, $kui-line-height-50);
+      margin: var(--kui-space-0, $kui-space-0);
       overflow-wrap: break-word;
-      white-space: pre-wrap;
+      overflow-x: auto;
+      padding: var(--kui-space-70, $kui-space-70);
+    }
+
+    // Styles for fenced code block copy button in `src/composables/useMarkdownIt.ts`
+    .kong-markdown-code-block-copy {
+      @include icon-button;
+      position: absolute;
+      right: var(--kui-space-40, $kui-space-40);
+      top: var(--kui-space-40, $kui-space-40);
     }
 
     .line.highlighted {

src/components/MarkdownUi.vue

@@ -61,7 +61,7 @@ import MarkdownToolbar from '@/components/toolbar/MarkdownToolbar.vue'
 import MarkdownContent from '@/components/MarkdownContent.vue'
 import composables from '@/composables'
 import { TEXTAREA_ID_INJECTION_KEY, MODE_INJECTION_KEY, EDITABLE_INJECTION_KEY, FULLSCREEN_INJECTION_KEY, HTML_PREVIEW_INJECTION_KEY } from '@/injection-keys'
-import { EDITOR_DEBOUNCE_TIMEOUT, TOOLBAR_HEIGHT } from '@/constants'
+import { EDITOR_DEBOUNCE_TIMEOUT, TOOLBAR_HEIGHT, NEW_LINE_CHARACTER } from '@/constants'
 import { v4 as uuidv4 } from 'uuid'
 import type { MarkdownMode, InlineFormat, MarkdownTemplate, TextAreaInputEvent } from '@/types'
 import formatHtml from 'html-format'
@@ -108,11 +108,16 @@ const props = defineProps({
     default: 300,
     validator: (height: number): boolean => height >= 100,
   },
-  /** When the editor is in fullscreen mode, the top offset, in pixels */
+  /** When the editor is in fullscreen, the top offset, in pixels */
   fullscreenOffsetTop: {
     type: Number,
     default: 0,
   },
+  /** The z-index of the position:fixed container when in fullscreen. */
+  fullscreenZIndex: {
+    type: Number,
+    default: 1001,
+  },
 })
 
 const emit = defineEmits<{
@@ -220,7 +225,7 @@ const htmlPreview = ref<boolean>(false)
 // If the htmlPreview is enabled, pass the generated HTML through the markdown renderer and output the syntax-highlighted result
 watchEffect(() => {
   if (htmlPreview.value) {
-    markdownPreviewHtml.value = md.value?.render('```html\n' + formatHtml(markdownHtml.value, ' '.repeat(props.tabSize)) + '\n```')
+    markdownPreviewHtml.value = md.value?.render('```html' + NEW_LINE_CHARACTER + formatHtml(markdownHtml.value, ' '.repeat(props.tabSize)) + NEW_LINE_CHARACTER + '```')
   }
 })
 
@@ -237,6 +242,22 @@ const updateMermaid = async () => {
   }
 }
 
+/** Copy the contents of the code block to the clipboard */
+const copyCodeBlock = async (e: any): Promise<void> => {
+  try {
+    e.preventDefault()
+    if (navigator?.clipboard?.writeText) {
+      const copyText = e.target?.dataset?.copytext || ''
+      if (copyText) {
+        await navigator.clipboard.writeText(copyText)
+        e?.target?.blur()
+      }
+    }
+  } catch (err) {
+    console.warn('Could not copy text to clipboard', err)
+  }
+}
+
 // When the textarea `input` event is triggered, or "faked" by other editor methods, update the Vue refs and rendered markdown
 const onContentEdit = (event: TextAreaInputEvent, emitEvent = true): void => {
   // Update the ref immediately
@@ -250,16 +271,33 @@ const debouncedUpdateContent = debounce(async (emitEvent = true): Promise<void>
   // Update the output
   markdownHtml.value = getHtmlFromMarkdown(rawMarkdown.value)
 
+  await nextTick() // **MUST** await nextTick for the virtual DOM to refresh again
+
+  updateCodeCopyClickEvents(true)
+
   // Emit the updated content if `emitEvent` is not false
   if (emitEvent) {
     emit('update:modelValue', rawMarkdown.value)
   }
 
   // Re-render any `.mermaid` containers
   await nextTick() // **MUST** await nextTick for the virtual DOM to refresh
+
   await updateMermaid()
 }, EDITOR_DEBOUNCE_TIMEOUT)
 
+const updateCodeCopyClickEvents = (enable = true): void => {
+  // Bind click events to code copy blocks
+  Array.from([...document.querySelectorAll(`#${componentContainerId.value} .kong-markdown-code-block-copy[data-copytext]`)]).forEach((el: Element) => {
+    if (enable) {
+      el.removeEventListener('click', copyCodeBlock)
+      el.addEventListener('click', copyCodeBlock)
+    } else {
+      el.removeEventListener('click', copyCodeBlock)
+    }
+  })
+}
+
 /**
  * Emulate an `input` event when injecting content into the textarea
  * @param {boolean} emitEvent Should the `onContentEdit` function emit the `update:modelValue` event. Should be false when this event is triggered by `props.modelValue` changes.
@@ -273,6 +311,8 @@ const emulateInputEvent = (emitEvent = true): void => {
 
   // Trigger the update
   onContentEdit(event, emitEvent)
+
+  updateCodeCopyClickEvents(true)
 }
 
 // Initialize rawMarkdown.value with the props.modelValue content
@@ -338,13 +378,19 @@ onMounted(async () => {
     })
   }
 
-  // Must await to let virtual DOM cycle
-  await nextTick()
+  if (currentMode.value === 'split') {
+    await nextTick()
+    // Synchronize the scroll containers
+    initializeSyncScroll()
+  }
 })
 
 onUnmounted(() => {
   // Remove scrolling event listeners
   destroySyncScroll()
+
+  // Unbind click events
+  updateCodeCopyClickEvents(false)
 })
 
 // Calculate the max height of the `.markdown-panes` when fullscreen is true. 100vh, minus the toolbar height, minus 10px padding.
@@ -360,14 +406,14 @@ const markdownEditorMaxHeight = computed((): string => `${props.editorMaxHeight}
   width: 100%;
 
   @media (min-width: $kui-breakpoint-phablet) {
-    gap: $kui-space-0;
+    gap: var(--kui-space-0, $kui-space-0);
   }
 
   .markdown-panes {
     box-sizing: border-box;
     display: flex;
     flex-direction: column;
-    gap: $kui-space-40;
+    gap: var(--kui-space-40, $kui-space-40);
     width: 100%;
 
     @media (min-width: $kui-breakpoint-phablet) {
@@ -393,12 +439,12 @@ const markdownEditorMaxHeight = computed((): string => `${props.editorMaxHeight}
       height: 100%;
       left: 0;
       margin-top: v-bind('fullscreenOffsetTop');
-      padding: $kui-space-0 $kui-space-40 $kui-space-40;
+      padding: var(--kui-space-0, $kui-space-0) var(--kui-space-40, $kui-space-40) var(--kui-space-40, $kui-space-40);
       position: fixed;
       right: 0;
       top: 0;
       width: 100%;
-      z-index: 1001;
+      z-index: v-bind('$props.fullscreenZIndex');
 
       .markdown-panes {
         height: v-bind('fullscreenMarkdownPanesHeight');