Options ui (#222)

* wip * Commenting stuff to keep the build happy * Revealing sections * Custom select elements & more form work * Range input styles * Text fields with inputs do the right thing * Safari & Firefox fixes * Large compress select * oops * MozJPEG options updated * OptPNG options * These asserts weren't true * Generic options * WebP options * Hiding "edit" when "original image" * Download icon * Copy setting button - still not happy with this * Progress indicator * Loading icon enter/exit anim * Preventing controls going under options * Ahh so that's what was causing scrolling * Ahh so that's what was causing outlines * Simplifying range styles and fixing cross-browser * Processing custom element styles * Get precision from step by default * I don't know how or when this happened. * Don't need that many steps * Avoid having an element that covers the pinch zoom * Preventing overlap with zoom controls * Prevent ts warning * Fixing spinner position * Simplifying FileSize
2025-11-13 17:27:09 +00:00 · 2018-11-06 13:36:23 +00:00
parent 0cec90c7ca
commit bdd3c11f1a
37 changed files with 1291 additions and 948 deletions
--- a/src/components/App/style.scss
+++ b/src/components/App/style.scss
@@ -1,7 +1,3 @@
-/*
-Note: These styles are temporary. They will be replaced before going live.
-*/
-
 .app {
  position: absolute;
  left: 0;
--- a/src/components/FileSize.tsx
+++ b/src/components/FileSize.tsx
@@ -1,87 +0,0 @@
-import { h, Component } from 'preact';
-import * as prettyBytes from 'pretty-bytes';
-
-type FileContents = ArrayBuffer | Blob;
-
-interface Props extends Pick<JSX.HTMLAttributes, Exclude<keyof JSX.HTMLAttributes, 'data'>> {
-  file?: FileContents;
-  compareTo?: FileContents;
-  increaseClass?: string;
-  decreaseClass?: string;
-}
-
-interface State {
-  size?: number;
-  sizeFormatted?: string;
-  compareSize?: number;
-  compareSizeFormatted?: string;
-}
-
-function calculateSize(data: FileContents): number {
-  return data instanceof ArrayBuffer ? data.byteLength : data.size;
-}
-
-export default class FileSize extends Component<Props, State> {
-  constructor(props: Props) {
-    super(props);
-    if (props.file) {
-      this.computeSize('size', props.file);
-    }
-    if (props.compareTo) {
-      this.computeSize('compareSize', props.compareTo);
-    }
-  }
-
-  componentWillReceiveProps({ file, compareTo }: Props) {
-    if (file !== this.props.file) {
-      this.computeSize('size', file);
-    }
-    if (compareTo !== this.props.compareTo) {
-      this.computeSize('compareSize', compareTo);
-    }
-  }
-
-  componentDidMount() {
-    this.applyStyles();
-  }
-
-  componentDidUpdate() {
-    this.applyStyles();
-  }
-
-  applyStyles() {
-    const { size, compareSize = 0 } = this.state;
-    if (size != null && this.base) {
-      const delta = size && compareSize ? (size - compareSize) / compareSize : 0;
-      this.base.style.setProperty('--size', '' + size);
-      this.base.style.setProperty('--size-delta', '' + Math.round(Math.abs(delta * 100)));
-    }
-  }
-
-  computeSize(prop: keyof State, data?: FileContents) {
-    const size = data ? calculateSize(data) : 0;
-    const pretty = prettyBytes(size);
-    this.setState({
-      [prop]: size,
-      [prop + 'Formatted']: pretty,
-    });
-  }
-
-  render(
-    { file, compareTo, increaseClass, decreaseClass, ...props }: Props,
-    { size, sizeFormatted = '', compareSize }: State,
-  ) {
-    const delta = size && compareSize ? (size - compareSize) / compareSize : 0;
-    return (
-      <span {...props}>
-        {sizeFormatted}
-        {compareTo && (
-          <span class={delta > 0 ? increaseClass : decreaseClass}>
-            {delta > 0 && '+'}
-            {Math.round(delta * 100)}%
-          </span>
-        )}
-      </span>
-    );
-  }
-}
--- a/src/components/Options/FileSize.tsx
+++ b/src/components/Options/FileSize.tsx
@@ -0,0 +1,41 @@
+import { h, Component } from 'preact';
+import * as prettyBytes from 'pretty-bytes';
+import * as style from './style.scss';
+
+interface Props {
+  blob: Blob;
+  compareTo?: Blob;
+}
+
+interface State {}
+
+export default class FileSize extends Component<Props, State> {
+  render({ blob, compareTo }: Props) {
+    let comparison: JSX.Element | undefined;
+
+    if (compareTo) {
+      const delta = blob.size / compareTo.size;
+      if (delta > 1) {
+        const percent = Math.round((delta - 1) * 100) + '%';
+        comparison = (
+          <span class={`${style.sizeDelta} ${style.sizeIncrease}`}>
+            {percent === '0%' ? 'slightly' : percent} bigger
+          </span>
+        );
+      } else if (delta < 1) {
+        const percent = Math.round((1 - delta) * 100) + '%';
+        comparison = (
+          <span class={`${style.sizeDelta} ${style.sizeDecrease}`}>
+            {percent === '0%' ? 'slightly' : percent} smaller
+          </span>
+        );
+      } else {
+        comparison = (
+          <span class={style.sizeDelta}>no change</span>
+        );
+      }
+    }
+
+    return <span>{prettyBytes(blob.size)} {comparison}</span>;
+  }
+}
--- a/src/components/Options/index.tsx
+++ b/src/components/Options/index.tsx
@@ -31,14 +31,17 @@ import {
  encoders,
  encodersSupported,
  EncoderSupportMap,
-  encoderMap,
 } from '../../codecs/encoders';
 import { QuantizeOptions } from '../../codecs/imagequant/processor-meta';
 import { ResizeOptions } from '../../codecs/resize/processor-meta';
 import { PreprocessorState } from '../../codecs/preprocessors';
-import FileSize from '../FileSize';
+import FileSize from './FileSize';
 import { DownloadIcon } from '../../lib/icons';
 import { SourceImage } from '../App';
+import Checkbox from '../checkbox';
+import Expander from '../expander';
+import Select from '../select';
+import '../custom-els/LoadingSpinner';

 const encoderOptionsComponentMap = {
  [identity.type]: undefined,
@@ -56,13 +59,9 @@ const encoderOptionsComponentMap = {
  [browserPDF.type]: undefined,
 };

-const titles = {
-  horizontal: ['Left Image', 'Right Image'],
-  vertical: ['Top Image', 'Bottom Image'],
-};
-
 interface Props {
  orientation: 'horizontal' | 'vertical';
+  loading: boolean;
  source?: SourceImage;
  imageIndex: number;
  imageFile?: Fileish;
@@ -77,16 +76,39 @@ interface Props {

 interface State {
  encoderSupportMap?: EncoderSupportMap;
+  showLoadingState: boolean;
 }

+const loadingReactionDelay = 500;
+
 export default class Options extends Component<Props, State> {
-  typeSelect?: HTMLSelectElement;
+  state: State = {
+    encoderSupportMap: undefined,
+    showLoadingState: false,
+  };
+
+  /** The timeout ID between entering the loading state, and changing UI */
+  private loadingTimeoutId: number = 0;

  constructor() {
    super();
    encodersSupported.then(encoderSupportMap => this.setState({ encoderSupportMap }));
  }

+  componentDidUpdate(prevProps: Props, prevState: State) {
+    if (prevProps.loading && !this.props.loading) {
+      // Just stopped loading
+      clearTimeout(this.loadingTimeoutId);
+      this.setState({ showLoadingState: false });
+    } else if (!prevProps.loading && this.props.loading) {
+      // Just started loading
+      this.loadingTimeoutId = self.setTimeout(
+        () => this.setState({ showLoadingState: true }),
+        loadingReactionDelay,
+      );
+    }
+  }
+
  @bind
  onEncoderTypeChange(event: Event) {
    const el = event.currentTarget as HTMLSelectElement;
@@ -138,105 +160,118 @@ export default class Options extends Component<Props, State> {
      preprocessorState,
      onEncoderOptionsChange,
    }: Props,
-    { encoderSupportMap }: State,
+    { encoderSupportMap, showLoadingState }: State,
  ) {
    // tslint:disable variable-name
    const EncoderOptionComponent = encoderOptionsComponentMap[encoderState.type];

    return (
-      <div class={`${style.options} ${style[orientation]}`}>
-        <h2 class={style.title}>
-          {titles[orientation][imageIndex]}
-          {', '}
-          {encoderMap[encoderState.type].label}
-        </h2>
-
-        <div class={style.content}>
-          <section class={style.picker}>
-            {encoderSupportMap ?
-              <select value={encoderState.type} onChange={this.onEncoderTypeChange}>
-                {encoders.filter(encoder => encoderSupportMap[encoder.type]).map(encoder => (
-                  <option value={encoder.type}>{encoder.label}</option>
-                ))}
-              </select>
-              :
-              <select><option>Loading…</option></select>
-            }
-          </section>
-
-          {encoderState.type !== 'identity' && (
-            <div key="preprocessors" class={style.preprocessors}>
-              <label class={style.toggle}>
-                <input
+      <div class={style.options}>
+        <Expander>
+          {encoderState.type === identity.type ? null :
+            <div>
+              <h3 class={style.optionsTitle}>Edit</h3>
+              <label class={style.sectionEnabler}>
+                <Checkbox
                  name="resize.enable"
-                  type="checkbox"
                  checked={!!preprocessorState.resize.enabled}
                  onChange={this.onPreprocessorEnabledChange}
                />
                Resize
              </label>
-              {preprocessorState.resize.enabled &&
-                <ResizeOptionsComponent
-                  isVector={Boolean(source && source.vectorImage)}
-                  aspect={source ? (source.data.width / source.data.height) : 1}
-                  options={preprocessorState.resize}
-                  onChange={this.onResizeOptionsChange}
-                />
-              }
-              <label class={style.toggle}>
-                <input
+              <Expander>
+                {preprocessorState.resize.enabled ?
+                  <ResizeOptionsComponent
+                    isVector={Boolean(source && source.vectorImage)}
+                    aspect={source ? (source.data.width / source.data.height) : 1}
+                    options={preprocessorState.resize}
+                    onChange={this.onResizeOptionsChange}
+                  />
+                : null}
+              </Expander>
+              <label class={style.sectionEnabler}>
+                <Checkbox
                  name="quantizer.enable"
-                  type="checkbox"
                  checked={!!preprocessorState.quantizer.enabled}
                  onChange={this.onPreprocessorEnabledChange}
                />
-                Quantize
+                Reduce palette
              </label>
-              {preprocessorState.quantizer.enabled &&
-                <QuantizerOptionsComponent
-                  options={preprocessorState.quantizer}
-                  onChange={this.onQuantizerOptionsChange}
-                />
-              }
+              <Expander>
+                {preprocessorState.quantizer.enabled ?
+                  <QuantizerOptionsComponent
+                    options={preprocessorState.quantizer}
+                    onChange={this.onQuantizerOptionsChange}
+                  />
+                : null}
+              </Expander>
            </div>
-          )}
-
-          {EncoderOptionComponent &&
-            <EncoderOptionComponent
-              options={
-                // Casting options, as encoderOptionsComponentMap[encodeData.type] ensures
-                // the correct type, but typescript isn't smart enough.
-                encoderState.options as any
-              }
-              onChange={onEncoderOptionsChange}
-            />
          }
+        </Expander>
+
+        <h3 class={style.optionsTitle}>Compress</h3>
+
+        <div class={style.optionsScroller}>
+          <section class={`${style.optionOneCell} ${style.optionsSection}`}>
+            {encoderSupportMap ?
+              <Select value={encoderState.type} onChange={this.onEncoderTypeChange} large>
+                {encoders.filter(encoder => encoderSupportMap[encoder.type]).map(encoder => (
+                  <option value={encoder.type}>{encoder.label}</option>
+                ))}
+              </Select>
+              :
+              <Select large><option>Loading…</option></Select>
+            }
+          </section>
+
+          <Expander>
+            {EncoderOptionComponent ?
+              <EncoderOptionComponent
+                options={
+                  // Casting options, as encoderOptionsComponentMap[encodeData.type] ensures
+                  // the correct type, but typescript isn't smart enough.
+                  encoderState.options as any
+                }
+                onChange={onEncoderOptionsChange}
+              />
+            : null}
+          </Expander>
        </div>

-        <div class={style.row}>
-          <button onClick={this.onCopyToOtherClick}>Copy settings to other side</button>
+        <div class={style.optionsCopy}>
+          <button onClick={this.onCopyToOtherClick} class={style.copyButton}>
+            {imageIndex === 1 && '← '}
+            Copy settings across
+            {imageIndex === 0 && ' →'}
+          </button>
        </div>

-        <div class={style.sizeDetails}>
-          <FileSize
-            class={style.size}
-            increaseClass={style.increase}
-            decreaseClass={style.decrease}
-            file={imageFile}
-            compareTo={(source && imageFile !== source.file) ? source.file : undefined}
-          />
+        <div class={style.results}>
+          <div class={style.resultData}>
+            {!imageFile || showLoadingState ? 'Working…' :
+              <FileSize
+                blob={imageFile}
+                compareTo={(source && imageFile !== source.file) ? source.file : undefined}
+              />
+            }
+          </div>
+
+          <div class={style.download}>
+            {(downloadUrl && imageFile) && (
+              <a
+                class={`${style.downloadLink} ${showLoadingState ? style.downloadLinkDisable : ''}`}
+                href={downloadUrl}
+                download={imageFile.name}
+                title="Download"
+              >
+                <DownloadIcon class={style.downloadIcon} />
+              </a>
+            )}
+            {showLoadingState && <loading-spinner class={style.spinner} />}
+          </div>

-          {(downloadUrl && imageFile) && (
-            <a
-              class={style.download}
-              href={downloadUrl}
-              download={imageFile.name}
-              title="Download"
-            >
-              <DownloadIcon />
-            </a>
-          )}
        </div>
+
      </div>
    );
  }
--- a/src/components/Options/style.scss
+++ b/src/components/Options/style.scss
@@ -1,225 +1,166 @@
-/*
-Note: These styles are temporary. They will be replaced before going live.
-*/
-
-.row {
-  padding: 5px;
-  margin: 0 10px;
-}
+$horizontalPadding: 15px;

 .options {
-  box-sizing: border-box;
-  padding: 0;
-  background: rgba(40,40,40,0.8);
-  box-shadow: 0 1px 3px rgba(0,0,0,0.5);
-  color: #eee;
-  overflow: auto;
-  z-index: 1;
+  color: #fff;
+  width: 300px;
  opacity: 0.9;
-  transform-origin: 50% 140%;
-  transition: opacity 300ms linear;
-  animation: options-open 500ms cubic-bezier(.6,1.6,.6,1) forwards 1;
-
-  &.horizontal {
-    border-radius: 1px 1px 5px 5px;
-    width: 230px;
-
-    > .inner {
-      max-height: 80vh;
-      overflow: auto;
-      -webkit-overflow-scrolling: touch;
-      -ms-touch-action: pan-y;
-      touch-action: pan-y;
-    }
-  }
-
-  &.vertical {
-    opacity: 1;
-    margin: 0 5px 10px;
-    border-radius: 0 0 5px 5px;
-  }
-
-  &:hover, &:focus, &:focus-within {
-    opacity: 1;
-  }
-
-  @keyframes options-open {
-    from {
-      transform: translateY(100px) scale(.8);
-    }
-  }
-
-  .content {
-    max-height: calc(75vh - 100px);
-    overflow: auto;
-    touch-action: pan-y;
-    -webkit-overflow-scrolling: touch;
-  }
-
-  .picker {
-    margin: 5px 15px;
-
-    select {
-      display: block;
-      width: 100%;
-      box-sizing: border-box;
-      -webkit-appearance: none;
-      appearance: none;
-      padding: 10px 30px 10px 10px;
-      background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="25" height="5"><polygon fill="#fff" points="10,0 5,5 0,0"/></svg>') right center no-repeat;
-      background-color: var(--gray-dark);
-      opacity: 0.9;
-      border: none;
-      font: inherit;
-      color: white;
-      transition: box-shadow 150ms ease;
-
-      &:hover {
-        opacity: 1;
-      }
-      &:focus {
-        opacity: 1;
-        outline: none;
-        box-shadow: 0 0 0 2px var(--button-fg, #ccc);
-      }
-    }
-  }
-
-  .title {
-    display: flex;
-    align-items: center;
-    padding: 10px 15px;
-    margin: 0 0 12px;
-    background: rgba(0,0,0,0.9);
-    font: inherit;
-  }
-
-  label {
-    display: block;
-    padding: 5px;
-    margin: 0 10px;
-    display: flex;
-    flex-wrap: wrap;
-
-    // prevent labels from wrapping below checkboxes
-    > span {
-      flex: 1;
-    }
-
-    input[type=checkbox],
-    input[type=radio] {
-      flex: 0;
-      margin: 2px 8px 0 0;
-    }
-
-    range-input {
-      display: block;
-      flex: 1 0 100%;
-      margin: 2px 0;
-    }
-  }
-
-  hr {
-    height: 1px;
-    border: none;
-    margin: 5px 0;
-    box-shadow: inset 0 0.5px 0 rgba(0, 0, 0, 0.4), inset 0 -0.5px 0 rgba(255, 255, 255, 0.2);
-  }
+  font-size: 1.2rem;
+  max-height: 100%;
+  display: flex;
+  flex-flow: column;
 }

-.picker {
-  margin: 5px 15px;
-
-  select {
-    display: block;
-    width: 100%;
-    box-sizing: border-box;
-    -webkit-appearance: none;
-    appearance: none;
-    padding: 10px 30px 10px 10px;
-    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="25" height="5"><polygon fill="#fff" points="10,0 5,5 0,0"/></svg>') right center no-repeat;
-    background-color: var(--gray-dark);
-    opacity: 0.9;
-    border: none;
-    font: inherit;
-    color: white;
-  }
-
-  hr {
-    height: 1px;
-    border: none;
-    margin: 5px 0;
-    box-shadow: inset 0 0.5px 0 rgba(0, 0, 0, 0.4), inset 0 -0.5px 0 rgba(255, 255, 255, 0.2);
-  }
+.options-title {
+  background: rgba(0, 0, 0, 0.9);
+  margin: 0;
+  padding: 10px $horizontalPadding;
+  font-weight: normal;
+  font-size: 1.4rem;
+  border-bottom: 1px solid #000;
 }

-.size-details {
+.option-text-first {
+  display: grid;
+  align-items: center;
+  grid-template-columns: 87px 1fr;
+  grid-gap: 0.7em;
+  padding: 10px $horizontalPadding;
+}
+
+.option-one-cell {
+  display: grid;
+  grid-template-columns: 1fr;
+  padding: 10px $horizontalPadding;
+}
+
+.option-input-first,
+.section-enabler {
+  cursor: pointer;
+  display: grid;
+  align-items: center;
+  grid-template-columns: auto 1fr;
+  grid-gap: 0.7em;
+  padding: 10px $horizontalPadding;
+}
+
+.section-enabler {
+  background: rgba(0, 0, 0, 0.8);
+}
+
+.options-section {
+  background: rgba(0, 0, 0, 0.7);
+}
+
+.text-field {
+  background: #fff;
+  font: inherit;
+  border: none;
+  padding: 2px 0 2px 10px;
+  width: 100%;
+  box-sizing: border-box;
+  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
+}
+
+.options-scroller {
+  overflow-x: hidden;
+  overflow-y: auto;
+}
+
+.results {
+  display: grid;
+  grid-template-columns: 1fr auto;
+  background: rgba(0, 0, 0, 0.9);
+  font-size: 1.4rem;
+}
+
+.result-data {
  display: flex;
  align-items: center;
-  padding: 5px 15px;
-  background: rgba(0,0,0,0.5);
+  padding: 0 $horizontalPadding;
+}
+
+.size-delta {
+  font-size: 1.1rem;
+  font-style: italic;
+  position: relative;
+  top: -1px;
+  margin-left: 0.3em;
+}
+
+.size-increase {
+  color: #e35050;
+}
+
+.size-decrease {
+  color: #50e3c2;
+}
+
+.options-copy {
+  display: grid;
+  background: rgba(0, 0, 0, 0.9);
+  padding: 5px;
+}
+
+.copy-button {
+  composes: unbutton from '../../lib/util.scss';
+  background: #484848;
+  border-radius: 4px;
+  color: #fff;
+  text-align: left;
+  padding: 5px 10px;
+}
+
+@keyframes action-enter {
+  from {
+    transform: rotate(-90deg);
+    opacity: 0;
+    animation-timing-function: ease-out;
+  }
+}
+
+@keyframes action-leave {
+  from {
+    transform: rotate(0deg);
+    opacity: 1;
+    animation-timing-function: ease-out;
+  }
 }

 .download {
-  flex: 0;
-  margin: 0 0 0 auto;
-  background: rgba(255,255,255,0.1);
-  border-radius: 50%;
-  padding: 5px;
-  width: 16px;
-  height: 16px;
-  text-decoration: none;
-
-  > svg {
-    width: 16px;
-    height: 16px;
-    fill: #fff;
-  }
-
-  &:hover {
-    background-color: rgba(255,255,255,0.3);
-  }
+  background: #34B9EB;
+  --size: 38px;
+  width: var(--size);
+  height: var(--size);
+  display: grid;
+  align-items: center;
+  justify-items: center;
 }

-.size-details {
-  padding: 5px 15px;
-  background: rgba(0,0,0,0.5);
+.download-link {
+  animation: action-enter 0.2s;
+  grid-area: 1/1;
 }

-.size {
-  font-weight: normal;
+.download-link-disable {
+  pointer-events: none;
+  opacity: 0;
+  transform: rotate(90deg);
+  animation: action-leave 0.2s;
 }

-.increase,
-.decrease {
-  font-style: italic;
-  filter: #{"grayscale(calc(50% - var(--size-delta, 50) * 0.5%))"};
-
-  &:before {
-    content: ' (';
-  }
-  &:after {
-    content: ')';
-  }
+.download-icon {
+  color: #fff;
+  display: block;
+  --size: 24px;
+  width: var(--size);
+  height: var(--size);
+  padding: 7px;
+  filter: drop-shadow(0 1px 0 rgba(0, 0, 0, 0.7));
 }

-.increase {
-  color: var(--negative);
-}
-.decrease {
-  color: var(--positive);
-}
-
-.preprocessors {
-  padding: 5px 0;
-  margin: 5px 0;
-  box-shadow: inset 0 -.5px 0 rgba(0,0,0,0.4), 0 .5px 0 rgba(255,255,255,0.2);
-}
-
-.toggle {
-  display: flex;
-  position: relative;
-  align-content: center;
-  font-size: 14px;
-  box-shadow: inset 0 -.5px 0 rgba(0,0,0,0.4), 0 .5px 0 rgba(255,255,255,0.2);
+.spinner {
+  --color: #fff;
+  --delay: 0;
+  --size: 22px;
+  grid-area: 1/1;
 }
--- a/src/components/Output/custom-els/TwoUp/styles.css
+++ b/src/components/Output/custom-els/TwoUp/styles.css
@@ -52,7 +52,7 @@ two-up[legacy-clip-compat] > :not(.two-up-handle) {
  height: calc(var(--thumb-size) * 0.9);
  background: var(--thumb-background);
  border: 1px solid rgba(0,0,0,0.2);
-  border-radius: calc(var(--thumb-size) * 0.08);
+  border-radius: var(--thumb-size);
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  color: var(--thumb-color);
  box-sizing: border-box;
--- a/src/components/Output/style.scss
+++ b/src/components/Output/style.scss
@@ -47,10 +47,10 @@ Note: These styles are temporary. They will be replaced before going live.
  flex-wrap: wrap;
  contain: content;

-  @media (min-width: 680px) {
+  @media (min-width: 860px) {
    top: auto;
-    left: 220px;
-    right: 220px;
+    left: 320px;
+    right: 320px;
    bottom: 0;
  }
 }
--- a/src/components/checkbox/index.tsx
+++ b/src/components/checkbox/index.tsx
@@ -0,0 +1,20 @@
+import { h, Component } from 'preact';
+import * as style from './style.scss';
+import { UncheckedIcon, CheckedIcon } from '../../lib/icons';
+
+interface Props extends JSX.HTMLAttributes {}
+interface State {}
+
+export default class Checkbox extends Component<Props, State> {
+  render(props: Props) {
+    return (
+      <div class={style.checkbox}>
+        {props.checked
+          ? <CheckedIcon class={`${style.icon} ${style.checked}`} />
+          : <UncheckedIcon class={style.icon} />
+        }
+        <input class={style.realCheckbox} type="checkbox" {...props}/>
+      </div>
+    );
+  }
+}
--- a/src/components/checkbox/style.scss
+++ b/src/components/checkbox/style.scss
@@ -0,0 +1,22 @@
+.checkbox {
+  display: inline-block;
+  position: relative;
+  --size: 17px;
+}
+
+.real-checkbox {
+  top: 0;
+  position: absolute;
+  opacity: 0;
+  pointer-events: none;
+}
+
+.icon {
+  display: block;
+  width: var(--size);
+  height: var(--size);
+}
+
+.checked {
+  fill: #34B9EB;
+}
--- a/src/components/compress/index.tsx
+++ b/src/components/compress/index.tsx
@@ -65,7 +65,9 @@ interface Props {
 interface State {
  source?: SourceImage;
  images: [EncodedImage, EncodedImage];
+  /** Source image load */
  loading: boolean;
+  loadingCounter: number;
  error?: string;
  orientation: Orientation;
 }
@@ -159,6 +161,7 @@ export default class Compress extends Component<Props, State> {
  state: State = {
    source: undefined,
    loading: false,
+    loadingCounter: 0,
    images: [
      {
        preprocessorState: defaultPreprocessorState,
@@ -252,7 +255,9 @@ export default class Compress extends Component<Props, State> {

  @bind
  private async updateFile(file: File | Fileish) {
-    this.setState({ loading: true });
+    const loadingCounter = this.state.loadingCounter + 1;
+
+    this.setState({ loadingCounter, loading: true });

    // Abort any current encode jobs, as they're redundant now.
    this.leftProcessor.abortCurrent();
@@ -273,6 +278,9 @@ export default class Compress extends Component<Props, State> {
        data = await decodeImage(file, this.leftProcessor);
      }

+      // Another file has been opened before this one processed.
+      if (this.state.loadingCounter !== loadingCounter) return;
+
      let newState: State = {
        ...this.state,
        source: { data, file, vectorImage },
@@ -303,6 +311,8 @@ export default class Compress extends Component<Props, State> {
    } catch (err) {
      if (err.name === 'AbortError') return;
      console.error(err);
+      // Another file has been opened before this one processed.
+      if (this.state.loadingCounter !== loadingCounter) return;
      this.props.onError('Invalid image');
      this.setState({ loading: false });
    }
@@ -388,10 +398,9 @@ export default class Compress extends Component<Props, State> {
  render({ }: Props, { loading, images, source, orientation }: State) {
    const [leftImage, rightImage] = images;
    const [leftImageData, rightImageData] = images.map(i => i.data);
-    const anyLoading = loading || images.some(image => image.loading);

    return (
-      <div class={style.compress}>
+      <div class={`${style.compress} ${style[orientation]}`}>
        <Output
          originalImage={source && source.data}
          orientation={orientation}
@@ -400,24 +409,22 @@ export default class Compress extends Component<Props, State> {
          leftImgContain={leftImage.preprocessorState.resize.fitMethod === 'cover'}
          rightImgContain={rightImage.preprocessorState.resize.fitMethod === 'cover'}
        />
-        <div class={`${style.optionPair} ${style[orientation]}`}>
-          {images.map((image, index) => (
-            <Options
-              source={source}
-              orientation={orientation}
-              imageIndex={index}
-              imageFile={image.file}
-              downloadUrl={image.downloadUrl}
-              preprocessorState={image.preprocessorState}
-              encoderState={image.encoderState}
-              onEncoderTypeChange={this.onEncoderTypeChange.bind(this, index)}
-              onEncoderOptionsChange={this.onEncoderOptionsChange.bind(this, index)}
-              onPreprocessorOptionsChange={this.onPreprocessorOptionsChange.bind(this, index)}
-              onCopyToOtherClick={this.onCopyToOtherClick.bind(this, index)}
-            />
-          ))}
-        </div>
-        {anyLoading && <span style={{ position: 'fixed', top: 0, left: 0 }}>Loading...</span>}
+        {images.map((image, index) => (
+          <Options
+            loading={loading || image.loading}
+            source={source}
+            orientation={orientation}
+            imageIndex={index}
+            imageFile={image.file}
+            downloadUrl={image.downloadUrl}
+            preprocessorState={image.preprocessorState}
+            encoderState={image.encoderState}
+            onEncoderTypeChange={this.onEncoderTypeChange.bind(this, index)}
+            onEncoderOptionsChange={this.onEncoderOptionsChange.bind(this, index)}
+            onPreprocessorOptionsChange={this.onPreprocessorOptionsChange.bind(this, index)}
+            onCopyToOtherClick={this.onCopyToOtherClick.bind(this, index)}
+          />
+        ))}
      </div>
    );
  }
--- a/src/components/compress/style.scss
+++ b/src/components/compress/style.scss
@@ -1,19 +1,22 @@
 .compress {
-  height: 100%;
-}
-
-.option-pair {
-  display: flex;
  width: 100%;
  height: 100%;
+  contain: strict;
+  display: grid;

  &.horizontal {
-    justify-content: space-between;
-    align-items: flex-end;
+    grid-template-columns: 1fr auto;
+    grid-template-rows: calc(100% - 75px);
+
+    @media (min-width: 860px) {
+      grid-template-rows: 100%;
+    }
+    align-items: end;
+    align-content: end;
  }

  &.vertical {
-    flex-direction: column;
-    justify-content: flex-end;
+    // TODO: make the mobile view work
+    background: red;
  }
 }
--- a/src/components/expander/index.tsx
+++ b/src/components/expander/index.tsx
@@ -0,0 +1,92 @@
+import { h, Component, ComponentChild, ComponentChildren } from 'preact';
+import * as style from './style.scss';
+import { linkRef } from '../../lib/initial-util';
+
+interface Props {
+  children: ComponentChildren;
+}
+interface State {
+  outgoingChildren: ComponentChild[];
+}
+
+export default class Expander extends Component<Props, State> {
+  state: State = {
+    outgoingChildren: [],
+  };
+  private el?: HTMLDivElement;
+  private lastElHeight: number = 0;
+
+  componentWillReceiveProps(nextProps: Props) {
+    const children = this.props.children as ComponentChild[];
+    const nextChildren = nextProps.children as ComponentChild[];
+
+    if (!nextChildren[0] && children[0]) {
+      // Cache the current children for the shrink animation.
+      this.setState({ outgoingChildren: children });
+    }
+  }
+
+  componentWillUpdate(nextProps: Props) {
+    const children = this.props.children as ComponentChild[];
+    const nextChildren = nextProps.children as ComponentChild[];
+
+    // Only interested if going from empty to not-empty, or not-empty to empty.
+    if ((children[0] && nextChildren[0]) || (!children[0] && !nextChildren[0])) return;
+    this.lastElHeight = this.el!.getBoundingClientRect().height;
+  }
+
+  componentDidUpdate(previousProps: Props) {
+    const children = this.props.children as ComponentChild[];
+    const previousChildren = previousProps.children as ComponentChild[];
+
+    // Only interested if going from empty to not-empty, or not-empty to empty.
+    if ((children[0] && previousChildren[0]) || (!children[0] && !previousChildren[0])) return;
+
+    // What height do we need to transition to?
+    this.el!.style.transition = 'none';
+    this.el!.style.height = '';
+    const newHeight = children[0] ? this.el!.getBoundingClientRect().height : 0;
+
+    if (this.lastElHeight === newHeight) {
+      this.el!.style.transition = '';
+      return;
+    }
+
+    // Set the currently rendered height absolutely.
+    this.el!.style.height = this.lastElHeight + 'px';
+    this.el!.style.transition = '';
+    this.el!.style.overflow = 'hidden';
+    // Force a style calc so the browser picks up the start value.
+    getComputedStyle(this.el!).height;
+    // Animate to the new height.
+    this.el!.style.height = newHeight + 'px';
+
+    const listener = () => {
+      // Unset the height & overflow, so element changes do the right thing.
+      this.el!.style.height = '';
+      this.el!.style.overflow = '';
+      this.el!.removeEventListener('transitionend', listener);
+      this.el!.removeEventListener('transitioncancel', listener);
+      if (this.state.outgoingChildren[0]) {
+        this.setState({ outgoingChildren: [] });
+      }
+    };
+
+    this.el!.addEventListener('transitionend', listener);
+    this.el!.addEventListener('transitioncancel', listener);
+  }
+
+  render(props: Props, { outgoingChildren }: State) {
+    const children = props.children as ComponentChild[];
+    const childrenExiting = !children[0] && outgoingChildren[0];
+
+    return (
+      <div
+        ref={linkRef(this, 'el')}
+        class={`${style.expander} ${childrenExiting ? style.childrenExiting : ''}`}
+      >
+        {children[0] ? children : outgoingChildren}
+      </div>
+    );
+  }
+}
--- a/src/components/expander/style.scss
+++ b/src/components/expander/style.scss
@@ -0,0 +1,9 @@
+.expander {
+  transition: height 200ms ease-in-out;
+}
+
+.children-exiting {
+  & > * {
+    pointer-events: none;
+  }
+}
--- a/src/components/range/index.tsx
+++ b/src/components/range/index.tsx
@@ -0,0 +1,55 @@
+import { h, Component } from 'preact';
+import * as style from './style.scss';
+import RangeInputElement from '../../custom-els/RangeInput';
+import '../../custom-els/RangeInput';
+import { linkRef, bind } from '../../lib/initial-util';
+
+interface Props extends JSX.HTMLAttributes {}
+interface State {}
+
+export default class Range extends Component<Props, State> {
+  rangeWc?: RangeInputElement;
+
+  @bind
+  private onTextInput(event: Event) {
+    const input = event.target as HTMLInputElement;
+    this.rangeWc!.value = input.value;
+    const { onInput } = this.props;
+    if (onInput) onInput(event);
+  }
+
+  render(props: Props) {
+    const {
+      children,
+      ...otherProps
+    } = props;
+
+    const {
+      value, min, max, step,
+    } = props;
+
+    return (
+      <label class={style.range}>
+        <span class={style.labelText}>{children}</span>
+        {/* On interaction, Safari gives focus to the first element in the label, so the
+        <range-input> is deliberately first. */}
+        <div class={style.rangeWcContainer}>
+          <range-input
+            ref={linkRef(this, 'rangeWc')}
+            class={style.rangeWc}
+            {...otherProps}
+          />
+        </div>
+        <input
+          type="number"
+          class={style.textInput}
+          value={value}
+          min={min}
+          max={max}
+          step={step}
+          onInput={this.onTextInput}
+        />
+      </label>
+    );
+  }
+}
--- a/src/components/range/style.scss
+++ b/src/components/range/style.scss
@@ -0,0 +1,55 @@
+.range {
+  position: relative;
+  z-index: 0;
+  display: grid;
+  grid-template-columns: 1fr auto;
+}
+
+.label-text {
+  color: #fff; /* TEMP */
+}
+
+.range-wc-container {
+  position: relative;
+  z-index: 1;
+  grid-row: 2 / 3;
+  grid-column: 1 / 3;
+}
+
+.range-wc {
+  width: 100%;
+}
+
+.text-input {
+  grid-row: 1 / 2;
+  grid-column: 2 / 3;
+
+  text-align: right;
+  background: transparent;
+  color: inherit;
+  font: inherit;
+  border: none;
+  padding: 2px 5px;
+  box-sizing: border-box;
+  text-decoration: underline;
+  text-decoration-style: dotted;
+  text-underline-position: under;
+  width: 48px;
+  position: relative;
+  left: 5px;
+
+  &:focus {
+    background: #fff;
+    color: #000;
+  }
+
+  // Remove the number controls
+  -moz-appearance: textfield;
+
+  &::-webkit-outer-spin-button,
+  &::-webkit-inner-spin-button {
+    -moz-appearance: none;
+    -webkit-appearance: none;
+    margin: 0;
+  }
+}
--- a/src/components/select/index.tsx
+++ b/src/components/select/index.tsx
@@ -0,0 +1,20 @@
+import { h, Component } from 'preact';
+import * as style from './style.scss';
+
+interface Props extends JSX.HTMLAttributes {
+  large?: boolean;
+}
+interface State {}
+
+export default class Select extends Component<Props, State> {
+  render(props: Props) {
+    const { large, ...otherProps } = props;
+
+    return (
+      <div class={style.select}>
+        <select class={`${style.nativeSelect} ${large ? style.large : ''}`} {...otherProps}/>
+        <svg class={style.arrow} viewBox="0 0 10 5"><path d="M0 0l5 5 5-5z"/></svg>
+      </div>
+    );
+  }
+}
--- a/src/components/select/style.scss
+++ b/src/components/select/style.scss
@@ -0,0 +1,33 @@
+.select {
+  position: relative;
+}
+
+.native-select {
+  background: #2f2f2f;
+  border-radius: 4px;
+  font: inherit;
+  padding: 4px 25px 4px 10px;
+  -webkit-appearance: none;
+  -moz-appearance: none;
+  border: none;
+  color: #fff;
+  width: 100%;
+}
+
+.arrow {
+  position: absolute;
+  right: 8px;
+  top: 50%;
+  transform: translateY(-50%);
+  fill: #fff;
+  width: 10px;
+}
+
+.large {
+  padding: 10px 35px 10px 10px;
+  background: #151515;
+
+  & .arrow {
+    right: 13px;
+  }
+}