From 46cb9aa44b069da3599e7e6815945e4b81112d6e Mon Sep 17 00:00:00 2001
From: Eric Liu <ericyl.us@gmail.com>
Date: Thu, 19 Dec 2019 04:20:20 -0800
Subject: [PATCH] feat(components): add Tile

Supports #34

TODO:

- remove exported props
- compose TileGroup, SelectableTile, RadioTile components
---
 src/components/Tile/ClickableTile.svelte      | 42 +++++++++
 src/components/Tile/ExpandableTile.svelte     | 88 +++++++++++++++++++
 src/components/Tile/RadioTile.svelte          | 59 +++++++++++++
 src/components/Tile/SelectableTile.svelte     | 78 ++++++++++++++++
 src/components/Tile/Tile.Story.svelte         | 68 ++++++++++++++
 src/components/Tile/Tile.stories.js           | 64 ++++++++++++++
 src/components/Tile/Tile.svelte               | 14 +++
 .../Tile/TileAboveTheFoldContent.svelte       |  7 ++
 .../Tile/TileBelowTheFoldContent.svelte       |  7 ++
 src/components/Tile/TileGroup.svelte          | 19 ++++
 src/components/Tile/index.js                  |  9 ++
 src/index.js                                  | 19 +++-
 12 files changed, 472 insertions(+), 2 deletions(-)
 create mode 100644 src/components/Tile/ClickableTile.svelte
 create mode 100644 src/components/Tile/ExpandableTile.svelte
 create mode 100644 src/components/Tile/RadioTile.svelte
 create mode 100644 src/components/Tile/SelectableTile.svelte
 create mode 100644 src/components/Tile/Tile.Story.svelte
 create mode 100644 src/components/Tile/Tile.stories.js
 create mode 100644 src/components/Tile/Tile.svelte
 create mode 100644 src/components/Tile/TileAboveTheFoldContent.svelte
 create mode 100644 src/components/Tile/TileBelowTheFoldContent.svelte
 create mode 100644 src/components/Tile/TileGroup.svelte
 create mode 100644 src/components/Tile/index.js

diff --git a/src/components/Tile/ClickableTile.svelte b/src/components/Tile/ClickableTile.svelte
new file mode 100644
index 00000000..5d36a9fb
--- /dev/null
+++ b/src/components/Tile/ClickableTile.svelte
@@ -0,0 +1,42 @@
+<script>
+  let className = undefined;
+  export { className as class };
+  export let href = undefined;
+  export let rel = undefined;
+  export let light = false;
+  export let clicked = false;
+  export let props = {};
+
+  import { createEventDispatcher, tick } from 'svelte';
+  import { cx } from '../../lib';
+
+  const dispatch = createEventDispatcher();
+
+  async function handleClick(event) {
+    clicked = !clicked;
+    await tick();
+    dispatch('click', event);
+  }
+
+  async function handleKeyDown(event) {
+    if (event.key === ' ' || event.key === 'Enter') {
+      clicked = !clicked;
+      await tick();
+    }
+
+    dispatch('keydown', event);
+  }
+
+  $: _class = cx(
+    '--link',
+    '--tile',
+    '--tile--clickable',
+    clicked && '--tile--is-clicked',
+    light && '--tile--light',
+    className
+  );
+</script>
+
+<a {...props} class={_class} on:click={handleClick} on:keydown={handleKeyDown} {href} {rel}>
+  <slot />
+</a>
diff --git a/src/components/Tile/ExpandableTile.svelte b/src/components/Tile/ExpandableTile.svelte
new file mode 100644
index 00000000..1b58c834
--- /dev/null
+++ b/src/components/Tile/ExpandableTile.svelte
@@ -0,0 +1,88 @@
+<script>
+  let className = undefined;
+  export { className as class };
+  export let expanded = false;
+  export let id = Math.random();
+  export let tileCollapsedIconText = 'Interact to expand Tile';
+  export let tileExpandedIconText = 'Interact to collapse Tile';
+  export let tileMaxHeight = 0;
+  export let tilePadding = 0;
+  export let tabIndex = 0;
+  export let light = false;
+  export let props = {};
+
+  import { createEventDispatcher, tick, onMount } from 'svelte';
+  import ChevronDown16 from 'carbon-icons-svelte/lib/ChevronDown16';
+  import { cx } from '../../lib';
+
+  let tile = undefined;
+  let tileContent = undefined;
+  let aboveTheFold = undefined;
+
+  const dispatch = createEventDispatcher();
+
+  onMount(() => {
+    const tileStyle = window.getComputedStyle(tile, null);
+    tileMaxHeight = aboveTheFold.getBoundingClientRect().height;
+    tilePadding =
+      parseInt(tileStyle.getPropertyValue('padding-top'), 10) +
+      parseInt(tileStyle.getPropertyValue('padding-bottom'), 10);
+  });
+
+  function setMaxHeight() {
+    tileMaxHeight = expanded
+      ? tileContent.getBoundingClientRect().height
+      : aboveTheFold.getBoundingClientRect().height;
+  }
+
+  async function handleClick(event) {
+    expanded = !expanded;
+    await tick();
+    setMaxHeight();
+    dispatch('click', event);
+  }
+
+  async function handleKeyPress(event) {
+    if (event.key === ' ' || event.key === 'Enter') {
+      expanded = !expanded;
+      await tick();
+      setMaxHeight();
+    }
+
+    dispatch('keypress', event);
+  }
+
+  $: _class = cx(
+    '--tile',
+    '--tile--expandable',
+    expanded && '--tile--is-expanded',
+    light && '--tile--light',
+    className
+  );
+  $: tileStyle = expanded ? undefined : `max-height: ${tileMaxHeight + tilePadding}px`;
+</script>
+
+<div
+  {...props}
+  bind:this={tile}
+  style={tileStyle}
+  class={_class}
+  on:click={handleClick}
+  on:keypress={handleKeyPress}
+  tabindex={tabIndex}
+  {id}>
+  <div bind:this={tileContent}>
+    <div bind:this={aboveTheFold} class={cx('--tile-content')}>
+      <slot name="above" />
+    </div>
+    <button
+      aria-expanded={expanded}
+      aria-label={expanded ? tileExpandedIconText : tileCollapsedIconText}
+      class={cx('--tile__chevron')}>
+      <ChevronDown16 />
+    </button>
+    <div class={cx('--tile-content')}>
+      <slot name="below" />
+    </div>
+  </div>
+</div>
diff --git a/src/components/Tile/RadioTile.svelte b/src/components/Tile/RadioTile.svelte
new file mode 100644
index 00000000..231026a1
--- /dev/null
+++ b/src/components/Tile/RadioTile.svelte
@@ -0,0 +1,59 @@
+<script>
+  // TODO: compose as "children" components
+  let className = undefined;
+  export { className as class };
+  export let checked = false;
+  export let id = Math.random();
+  export let name = '';
+  export let iconDescription = 'Tile checkmark';
+  export let value = '';
+  export let tabIndex = 0;
+  export let light = false;
+  export let props = {};
+
+  import { createEventDispatcher } from 'svelte';
+  import CheckmarkFilled16 from 'carbon-icons-svelte/lib/CheckmarkFilled16';
+  import { cx } from '../../lib';
+
+  const dispatch = createEventDispatcher();
+
+  function handleChange(event) {
+    dispatch('change', event);
+  }
+
+  function handleKeyDown(event) {
+    if (event.key === ' ' || event.key === 'Enter') {
+      event.preventDefault();
+      handleChange(event);
+    }
+
+    dispatch('keydown', event);
+  }
+
+  $: _class = cx(
+    '--tile',
+    '--tile--selectable',
+    checked && '--tile--is-selected',
+    light && '--tile--light',
+    className
+  );
+</script>
+
+<input
+  {...props}
+  type="radio"
+  class={cx('--tile-input')}
+  on:change
+  on:change={handleChange}
+  {id}
+  {name}
+  {value}
+  {checked} />
+<label for={id} class={_class} tabindex={tabIndex} on:keydown={handleKeyDown}>
+  <span class={cx('--tile__checkmark')}>
+    <CheckmarkFilled16 aria-label={iconDescription} title={iconDescription} />
+  </span>
+  <span class={cx('--tile-content')}>
+    <slot />
+  </span>
+</label>
diff --git a/src/components/Tile/SelectableTile.svelte b/src/components/Tile/SelectableTile.svelte
new file mode 100644
index 00000000..eb356433
--- /dev/null
+++ b/src/components/Tile/SelectableTile.svelte
@@ -0,0 +1,78 @@
+<script>
+  // TODO: emit current selected tile
+  let className = undefined;
+  export { className as class };
+  export let selected = false;
+  export let id = Math.random();
+  export let value = 'value';
+  export let title = 'title';
+  export let name = '';
+  export let iconDescription = 'Tile checkmark';
+  export let tabIndex = 0;
+  export let light = false;
+  export let props = {};
+
+  import { createEventDispatcher, tick } from 'svelte';
+  import CheckmarkFilled16 from 'carbon-icons-svelte/lib/CheckmarkFilled16';
+  import { cx } from '../../lib';
+
+  let input = undefined;
+  const dispatch = createEventDispatcher();
+
+  function handleChange(event) {
+    dispatch('change', event);
+  }
+
+  async function handleClick(event) {
+    if (event.target !== input) {
+      selected = !selected;
+      await tick();
+    }
+
+    dispatch('click', event);
+  }
+
+  async function handleKeyDown(event) {
+    if (event.key === ' ' || event.key === 'Enter') {
+      event.preventDefault();
+      selected = !selected;
+      await tick();
+    }
+
+    dispatch('keydown', event);
+  }
+
+  $: _class = cx(
+    '--tile',
+    '--tile--selectable',
+    selected && '--tile--is-selected',
+    light && '--tile--light',
+    className
+  );
+</script>
+
+<input
+  bind:this={input}
+  type="checkbox"
+  tabindex={-1}
+  class={cx('--tile-input')}
+  on:change={handleChange}
+  checked={selected}
+  {id}
+  {value}
+  {name}
+  {title} />
+<label
+  {...props}
+  for={id}
+  class={_class}
+  tabindex={tabIndex}
+  on:click|preventDefault={handleClick}
+  on:keydown={handleKeyDown}>
+  <span class={cx('--tile__checkmark')}>
+    <CheckmarkFilled16 aria-label={iconDescription} title={iconDescription} />
+  </span>
+  <span class={cx('--tile-content')}>
+    <slot />
+  </span>
+</label>
diff --git a/src/components/Tile/Tile.Story.svelte b/src/components/Tile/Tile.Story.svelte
new file mode 100644
index 00000000..c255c025
--- /dev/null
+++ b/src/components/Tile/Tile.Story.svelte
@@ -0,0 +1,68 @@
+<script>
+  export let story = undefined;
+
+  import Layout from '../../internal/ui/Layout.svelte';
+  import Tile from './Tile.svelte';
+  import ClickableTile from './ClickableTile.svelte';
+  import SelectableTile from './SelectableTile.svelte';
+  import ExpandableTile from './ExpandableTile.svelte';
+  import TileAboveTheFoldContent from './TileAboveTheFoldContent.svelte';
+  import TileBelowTheFoldContent from './TileBelowTheFoldContent.svelte';
+  import TileGroup from './TileGroup.svelte';
+  import RadioTile from './RadioTile.svelte';
+
+  const radioTiles = [
+    { value: 'standard', id: 'tile-1', labelText: 'Selectable Tile' },
+    { value: 'default-selected', id: 'tile-2', labelText: 'Selectable Tile' },
+    { value: 'selected', id: 'tile-3', labelText: 'Selectable Tile' }
+  ];
+
+  let selected = radioTiles[1].value;
+</script>
+
+<Layout>
+  <div>
+    {#if story === 'filter'}
+      <Tile {...$$props} />
+    {:else if story === 'clickable'}
+      <ClickableTile {...$$props}>Clickable Tile</ClickableTile>
+    {:else if story === 'multi-select'}
+      <div role="group" aria-label="selectable tiles">
+        <SelectableTile id="tile-1" name="tiles" {...$$props}>Multi-select Tile</SelectableTile>
+        <SelectableTile id="tile-2" name="tiles" {...$$props}>Multi-select Tile</SelectableTile>
+        <SelectableTile id="tile-3" name="tiles" {...$$props}>Multi-select Tile</SelectableTile>
+      </div>
+    {:else if story === 'selectable'}
+      <TileGroup legend="Selectable Tile Group">
+        {#each radioTiles as { value, id, labelText }, i (id)}
+          <RadioTile
+            {...$$props}
+            checked={selected === value}
+            on:change={() => {
+              selected = value;
+            }}
+            {value}
+            {id}
+            {labelText}>
+            Selectable Tile
+          </RadioTile>
+        {/each}
+      </TileGroup>
+    {:else if story === 'expandable'}
+      <ExpandableTile {...$$props}>
+        <div slot="above">
+          <TileAboveTheFoldContent>
+            <div style="height: 200px">Above the fold content here</div>
+          </TileAboveTheFoldContent>
+        </div>
+        <div slot="below">
+          <TileBelowTheFoldContent>
+            <div style="height: 400px">Below the fold content here</div>
+          </TileBelowTheFoldContent>
+        </div>
+      </ExpandableTile>
+    {:else}
+      <Tile {...$$props}>Default Tile</Tile>
+    {/if}
+  </div>
+</Layout>
diff --git a/src/components/Tile/Tile.stories.js b/src/components/Tile/Tile.stories.js
new file mode 100644
index 00000000..e46f116e
--- /dev/null
+++ b/src/components/Tile/Tile.stories.js
@@ -0,0 +1,64 @@
+import { withKnobs, select, number, boolean, text } from '@storybook/addon-knobs';
+import Component from './Tile.Story.svelte';
+
+export default { title: 'Tile', decorators: [withKnobs] };
+
+export const Default = () => ({
+  Component,
+  props: {
+    light: boolean('Light variant (light)', false)
+  }
+});
+
+export const Clickable = () => ({
+  Component,
+  props: {
+    story: 'clickable',
+    href: text('Href for clickable UI (href)', 'javascript:void(0)'),
+    light: boolean('Light variant (light)', false)
+  }
+});
+
+export const MultiSelect = () => ({
+  Component,
+  props: {
+    story: 'multi-select',
+    selected: boolean('Selected (selected)', false),
+    light: boolean('Light variant (light)', false)
+  }
+});
+
+const radioValues = {
+  None: '',
+  standard: 'standard',
+  'default-selected': 'default-selected',
+  selected: 'selected'
+};
+
+export const Selectable = () => ({
+  Component,
+  props: {
+    story: 'selectable',
+    name: text('Form item name (name in <RadioTile>)', 'tiles'),
+    light: boolean('Light variant (light)', false)
+  }
+});
+
+export const Expandable = () => ({
+  Component,
+  props: {
+    story: 'expandable',
+    tabIndex: number('Tab index (tabIndex)', 0),
+    expanded: boolean('Expanded (expanded)', false),
+    tileMaxHeight: number('Max height (tileMaxHeight)', 0),
+    tileCollapsedIconText: text(
+      'Collapsed icon text (tileCollapsedIconText)',
+      'Interact to Expand tile'
+    ),
+    tileExpandedIconText: text(
+      'Collapsed icon text (tileExpandedIconText)',
+      'Interact to Collapse tile'
+    ),
+    light: boolean('Light variant (light)', false)
+  }
+});
diff --git a/src/components/Tile/Tile.svelte b/src/components/Tile/Tile.svelte
new file mode 100644
index 00000000..08794dd6
--- /dev/null
+++ b/src/components/Tile/Tile.svelte
@@ -0,0 +1,14 @@
+<script>
+  let className = undefined;
+  export { className as class };
+  export let light = false;
+  export let props = {};
+
+  import { cx } from '../../lib';
+
+  $: _class = cx('--tile', light && '--tile--light', className);
+</script>
+
+<div class={_class} {...props}>
+  <slot />
+</div>
diff --git a/src/components/Tile/TileAboveTheFoldContent.svelte b/src/components/Tile/TileAboveTheFoldContent.svelte
new file mode 100644
index 00000000..09f0425f
--- /dev/null
+++ b/src/components/Tile/TileAboveTheFoldContent.svelte
@@ -0,0 +1,7 @@
+<script>
+  import { cx } from '../../lib';
+</script>
+
+<span class={cx('--tile-content__above-the-fold')}>
+  <slot />
+</span>
diff --git a/src/components/Tile/TileBelowTheFoldContent.svelte b/src/components/Tile/TileBelowTheFoldContent.svelte
new file mode 100644
index 00000000..0a35adb5
--- /dev/null
+++ b/src/components/Tile/TileBelowTheFoldContent.svelte
@@ -0,0 +1,7 @@
+<script>
+  import { cx } from '../../lib';
+</script>
+
+<span class={cx('--tile-content__below-the-fold')}>
+  <slot />
+</span>
diff --git a/src/components/Tile/TileGroup.svelte b/src/components/Tile/TileGroup.svelte
new file mode 100644
index 00000000..bd26e160
--- /dev/null
+++ b/src/components/Tile/TileGroup.svelte
@@ -0,0 +1,19 @@
+<script>
+  let className = undefined;
+  export { className as class };
+  export let disabled = false;
+  export let legend = '';
+
+  import { cx } from '../../lib';
+
+  $: _class = cx('--tile-group', className);
+</script>
+
+<fieldset class={_class} {disabled}>
+  {#if legend}
+    <legend>{legend}</legend>
+  {/if}
+  <div>
+    <slot />
+  </div>
+</fieldset>
diff --git a/src/components/Tile/index.js b/src/components/Tile/index.js
new file mode 100644
index 00000000..926396cc
--- /dev/null
+++ b/src/components/Tile/index.js
@@ -0,0 +1,9 @@
+import Tile from './Tile.svelte';
+
+export default Tile;
+export { default as ClickableTile } from './ClickableTile.svelte';
+export { default as ExpandableTile } from './ExpandableTile.svelte';
+export { default as SelectableTile } from './SelectableTile.svelte';
+export { default as TileGroup } from './TileGroup.svelte';
+export { default as TileAboveTheFoldContent } from './TileAboveTheFoldContent.svelte';
+export { default as TileBelowTheFoldContent } from './TileBelowTheFoldContent.svelte';
diff --git a/src/index.js b/src/index.js
index 36105eb7..e7d843bb 100644
--- a/src/index.js
+++ b/src/index.js
@@ -18,6 +18,14 @@ import SkeletonText from './components/SkeletonText';
 import Tag, { TagSkeleton } from './components/Tag';
 import TextArea, { TextAreaSkeleton } from './components/TextArea';
 import TextInput, { TextInputSkeleton, PasswordInput } from './components/TextInput';
+import Tile, {
+  ClickableTile,
+  ExpandableTile,
+  SelectableTile,
+  TileGroup,
+  TileAboveTheFoldContent,
+  TileBelowTheFoldContent
+} from './components/Tile';
 import Toggle, { ToggleSkeleton } from './components/Toggle';
 import ToggleSmall, { ToggleSmallSkeleton } from './components/ToggleSmall';
 import TooltipDefinition from './components/TooltipDefinition';
@@ -35,20 +43,24 @@ export {
   ButtonSkeleton,
   Checkbox,
   CheckboxSkeleton,
+  ClickableTile,
   CodeSnippet,
   CodeSnippetSkeleton,
   Copy,
   CopyButton,
   DataTableSkeleton,
+  ExpandableTile,
   InlineLoading,
-  Loading,
   Link,
   ListItem,
+  Loading,
   OrderedList,
+  PasswordInput,
   RadioButton,
   RadioButtonSkeleton,
   Search,
   SearchSkeleton,
+  SelectableTile,
   SkeletonPlaceholder,
   SkeletonText,
   Tag,
@@ -57,7 +69,10 @@ export {
   TextAreaSkeleton,
   TextInput,
   TextInputSkeleton,
-  PasswordInput,
+  Tile,
+  TileAboveTheFoldContent,
+  TileBelowTheFoldContent,
+  TileGroup,
   Toggle,
   ToggleSkeleton,
   ToggleSmall,