diff options
Diffstat (limited to 'app/javascript/flavours/glitch/features/compose/components/dropdown.js')
-rw-r--r-- | app/javascript/flavours/glitch/features/compose/components/dropdown.js | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/app/javascript/flavours/glitch/features/compose/components/dropdown.js b/app/javascript/flavours/glitch/features/compose/components/dropdown.js new file mode 100644 index 000000000..60035b705 --- /dev/null +++ b/app/javascript/flavours/glitch/features/compose/components/dropdown.js @@ -0,0 +1,235 @@ +// Package imports. +import classNames from 'classnames'; +import PropTypes from 'prop-types'; +import React from 'react'; +import Overlay from 'react-overlays/lib/Overlay'; + +// Components. +import IconButton from 'flavours/glitch/components/icon_button'; +import DropdownMenu from './dropdown_menu'; + +// Utils. +import { isUserTouching } from 'flavours/glitch/util/is_mobile'; +import { assignHandlers } from 'flavours/glitch/util/react_helpers'; + +// The component. +export default class ComposerOptionsDropdown extends React.PureComponent { + + static propTypes = { + active: PropTypes.bool, + disabled: PropTypes.bool, + icon: PropTypes.string, + items: PropTypes.arrayOf(PropTypes.shape({ + icon: PropTypes.string, + meta: PropTypes.node, + name: PropTypes.string.isRequired, + on: PropTypes.bool, + text: PropTypes.node, + })).isRequired, + onModalOpen: PropTypes.func, + onModalClose: PropTypes.func, + title: PropTypes.string, + value: PropTypes.string, + onChange: PropTypes.func, + }; + + state = { + needsModalUpdate: false, + open: false, + openedViaKeyboard: undefined, + placement: 'bottom', + }; + + // Toggles opening and closing the dropdown. + handleToggle = ({ target, type }) => { + const { onModalOpen } = this.props; + const { open } = this.state; + + if (isUserTouching()) { + if (this.state.open) { + this.props.onModalClose(); + } else { + const modal = this.handleMakeModal(); + if (modal && onModalOpen) { + onModalOpen(modal); + } + } + } else { + const { top } = target.getBoundingClientRect(); + if (this.state.open && this.activeElement) { + this.activeElement.focus(); + } + this.setState({ placement: top * 2 < innerHeight ? 'bottom' : 'top' }); + this.setState({ open: !this.state.open, openedViaKeyboard: type !== 'click' }); + } + } + + handleKeyDown = (e) => { + switch (e.key) { + case 'Escape': + this.handleClose(); + break; + } + } + + handleMouseDown = () => { + if (!this.state.open) { + this.activeElement = document.activeElement; + } + } + + handleButtonKeyDown = (e) => { + switch(e.key) { + case ' ': + case 'Enter': + this.handleMouseDown(); + break; + } + } + + handleKeyPress = (e) => { + switch(e.key) { + case ' ': + case 'Enter': + this.handleToggle(e); + e.stopPropagation(); + e.preventDefault(); + break; + } + } + + handleClose = () => { + if (this.state.open && this.activeElement) { + this.activeElement.focus(); + } + this.setState({ open: false }); + } + + // Creates an action modal object. + handleMakeModal = () => { + const component = this; + const { + items, + onChange, + onModalOpen, + onModalClose, + value, + } = this.props; + + // Required props. + if (!(onChange && onModalOpen && onModalClose && items)) { + return null; + } + + // The object. + return { + actions: items.map( + ({ + name, + ...rest + }) => ({ + ...rest, + active: value && name === value, + name, + onClick (e) { + e.preventDefault(); // Prevents focus from changing + onModalClose(); + onChange(name); + }, + onPassiveClick (e) { + e.preventDefault(); // Prevents focus from changing + onChange(name); + component.setState({ needsModalUpdate: true }); + }, + }) + ), + }; + } + + // If our modal is open and our props update, we need to also update + // the modal. + handleUpdate = () => { + const { onModalOpen } = this.props; + const { needsModalUpdate } = this.state; + + // Gets our modal object. + const modal = this.handleMakeModal(); + + // Reopens the modal with the new object. + if (needsModalUpdate && modal && onModalOpen) { + onModalOpen(modal); + } + } + + // Updates our modal as necessary. + componentDidUpdate (prevProps) { + const { items } = this.props; + const { needsModalUpdate } = this.state; + if (needsModalUpdate && items.find( + (item, i) => item.on !== prevProps.items[i].on + )) { + this.handleUpdate(); + this.setState({ needsModalUpdate: false }); + } + } + + // Rendering. + render () { + const { + active, + disabled, + title, + icon, + items, + onChange, + value, + } = this.props; + const { open, placement } = this.state; + const computedClass = classNames('composer--options--dropdown', { + active, + open, + top: placement === 'top', + }); + + // The result. + return ( + <div + className={computedClass} + onKeyDown={this.handleKeyDown} + > + <IconButton + active={open || active} + className='value' + disabled={disabled} + icon={icon} + inverted + onClick={this.handleToggle} + onMouseDown={this.handleMouseDown} + onKeyDown={this.handleButtonKeyDown} + onKeyPress={this.handleKeyPress} + size={18} + style={{ + height: null, + lineHeight: '27px', + }} + title={title} + /> + <Overlay + containerPadding={20} + placement={placement} + show={open} + target={this} + > + <DropdownMenu + items={items} + onChange={onChange} + onClose={this.handleClose} + value={value} + openedViaKeyboard={this.state.openedViaKeyboard} + /> + </Overlay> + </div> + ); + } + +} |