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
2025-11-14 09:39:15 +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/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>
+    );
+  }
+}