diff options
Diffstat (limited to 'app/javascript/flavours/glitch/features/composer/options/dropdown/index.js')
-rw-r--r-- | app/javascript/flavours/glitch/features/composer/options/dropdown/index.js | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/app/javascript/flavours/glitch/features/composer/options/dropdown/index.js b/app/javascript/flavours/glitch/features/composer/options/dropdown/index.js new file mode 100644 index 000000000..7817cc964 --- /dev/null +++ b/app/javascript/flavours/glitch/features/composer/options/dropdown/index.js @@ -0,0 +1,229 @@ +// 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 ComposerOptionsDropdownContent from './content'; + +// Utils. +import { isUserTouching } from 'flavours/glitch/util/is_mobile'; +import { assignHandlers } from 'flavours/glitch/util/react_helpers'; + +// Handlers. +const handlers = { + + // Closes the dropdown. + handleClose () { + this.setState({ open: false }); + }, + + // The enter key toggles the dropdown's open state, and the escape + // key closes it. + handleKeyDown ({ key }) { + const { + handleClose, + handleToggle, + } = this.handlers; + switch (key) { + case 'Enter': + handleToggle(key); + break; + case 'Escape': + handleClose(); + break; + } + }, + + // 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 }); + }, + }) + ), + }; + }, + + // Toggles opening and closing the dropdown. + handleToggle ({ target }) { + const { handleMakeModal } = this.handlers; + const { onModalOpen } = this.props; + const { open } = this.state; + + // If this is a touch device, we open a modal instead of the + // dropdown. + if (isUserTouching()) { + + // This gets the modal to open. + const modal = handleMakeModal(); + + // If we can, we then open the modal. + if (modal && onModalOpen) { + onModalOpen(modal); + return; + } + } + + const { top } = target.getBoundingClientRect(); + this.setState({ placement: top * 2 < innerHeight ? 'bottom' : 'top' }); + // Otherwise, we just set our state to open. + this.setState({ open: !open }); + }, + + // If our modal is open and our props update, we need to also update + // the modal. + handleUpdate () { + const { handleMakeModal } = this.handlers; + const { onModalOpen } = this.props; + const { needsModalUpdate } = this.state; + + // Gets our modal object. + const modal = handleMakeModal(); + + // Reopens the modal with the new object. + if (needsModalUpdate && modal && onModalOpen) { + onModalOpen(modal); + } + }, +}; + +// The component. +export default class ComposerOptionsDropdown extends React.PureComponent { + + // Constructor. + constructor (props) { + super(props); + assignHandlers(this, handlers); + this.state = { + needsModalUpdate: false, + open: false, + placement: 'bottom', + }; + } + + // Updates our modal as necessary. + componentDidUpdate (prevProps) { + const { handleUpdate } = this.handlers; + const { items } = this.props; + const { needsModalUpdate } = this.state; + if (needsModalUpdate && items.find( + (item, i) => item.on !== prevProps.items[i].on + )) { + handleUpdate(); + this.setState({ needsModalUpdate: false }); + } + } + + // Rendering. + render () { + const { + handleClose, + handleKeyDown, + handleToggle, + } = this.handlers; + 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={handleKeyDown} + > + <IconButton + active={open || active} + className='value' + disabled={disabled} + icon={icon} + onClick={handleToggle} + size={18} + style={{ + height: null, + lineHeight: '27px', + }} + title={title} + /> + <Overlay + containerPadding={20} + placement={placement} + show={open} + target={this} + > + <ComposerOptionsDropdownContent + items={items} + onChange={onChange} + onClose={handleClose} + value={value} + /> + </Overlay> + </div> + ); + } + +} + +// Props. +ComposerOptionsDropdown.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, + onChange: PropTypes.func, + onModalClose: PropTypes.func, + onModalOpen: PropTypes.func, + title: PropTypes.string, + value: PropTypes.string, +}; |