726 lines
20 KiB
JavaScript
726 lines
20 KiB
JavaScript
/*
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`<Status>`
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==========
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Original file by @gargron@mastodon.social et al as part of
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tootsuite/mastodon. *Heavily* rewritten (and documented!) by
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@kibi@glitch.social as a part of glitch-soc/mastodon. The following
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features have been added:
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- Better separating the "guts" of statuses from their wrapper(s)
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- Collapsing statuses
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- Moving images inside of CWs
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A number of aspects of this original file have been split off into
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their own components for better maintainance; for these, see:
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- <StatusHeader>
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- <StatusPrepend>
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…And, of course, the other <Status>-related components as well.
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*/
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/* * * * */
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/*
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Imports:
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--------
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*/
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// Package imports //
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import React from 'react';
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import PropTypes from 'prop-types';
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import ImmutablePropTypes from 'react-immutable-proptypes';
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import ImmutablePureComponent from 'react-immutable-pure-component';
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// Mastodon imports //
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import scheduleIdleTask from '../../../mastodon/features/ui/util/schedule_idle_task';
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// Our imports //
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import StatusPrepend from './prepend';
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import StatusHeader from './header';
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import StatusContent from './content';
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import StatusActionBar from './action_bar';
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import StatusGallery from './gallery';
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import StatusPlayer from './player';
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/* * * * */
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/*
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The `<Status>` component:
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-------------------------
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The `<Status>` component is a container for statuses. It consists of a
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few parts:
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- The `<StatusPrepend>`, which contains tangential information about
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the status, such as who reblogged it.
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- The `<StatusHeader>`, which contains the avatar and username of the
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status author, as well as a media icon and the "collapse" toggle.
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- The `<StatusContent>`, which contains the content of the status.
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- The `<StatusActionBar>`, which provides actions to be performed
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on statuses, like reblogging or sending a reply.
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### Context
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- __`router` (`PropTypes.object`) :__
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We need to get our router from the surrounding React context.
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### Props
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- __`id` (`PropTypes.number`) :__
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The id of the status.
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- __`status` (`ImmutablePropTypes.map`) :__
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The status object, straight from the store.
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- __`account` (`ImmutablePropTypes.map`) :__
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Don't be confused by this one! This is **not** the account which
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posted the status, but the associated account with any further
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action (eg, a reblog or a favourite).
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- __`settings` (`ImmutablePropTypes.map`) :__
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These are our local settings, fetched from our store. We need this
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to determine how best to collapse our statuses, among other things.
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- __`me` (`PropTypes.number`) :__
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This is the id of the currently-signed-in user.
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- __`onFavourite`, `onReblog`, `onModalReblog`, `onDelete`,
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`onMention`, `onMute`, `onMuteConversation`, onBlock`, `onReport`,
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`onOpenMedia`, `onOpenVideo` (`PropTypes.func`) :__
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These are all functions passed through from the
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`<StatusContainer>`. We don't deal with them directly here.
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- __`reblogModal`, `deleteModal` (`PropTypes.bool`) :__
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These tell whether or not the user has modals activated for
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reblogging and deleting statuses. They are used by the `onReblog`
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and `onDelete` functions, but we don't deal with them here.
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- __`autoPlayGif` (`PropTypes.bool`) :__
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This tells the frontend whether or not to autoplay gifs!
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- __`muted` (`PropTypes.bool`) :__
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This has nothing to do with a user or conversation mute! "Muted" is
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what Mastodon internally calls the subdued look of statuses in the
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notifications column. This should be `true` for notifications, and
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`false` otherwise.
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- __`collapse` (`PropTypes.bool`) :__
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This prop signals a directive from a higher power to (un)collapse
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a status. Most of the time it should be `undefined`, in which case
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we do nothing.
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- __`prepend` (`PropTypes.string`) :__
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The type of prepend: `'reblogged_by'`, `'reblog'`, or
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`'favourite'`.
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- __`withDismiss` (`PropTypes.bool`) :__
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Whether or not the status can be dismissed. Used for notifications.
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- __`intersectionObserverWrapper` (`PropTypes.object`) :__
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This holds our intersection observer. In Mastodon parlance,
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an "intersection" is just when the status is viewable onscreen.
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### State
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- __`isExpanded` :__
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Should be either `true`, `false`, or `null`. The meanings of
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these values are as follows:
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- __`true` :__ The status contains a CW and the CW is expanded.
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- __`false` :__ The status is collapsed.
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- __`null` :__ The status is not collapsed or expanded.
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- __`isIntersecting` :__
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This boolean tells us whether or not the status is currently
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onscreen.
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- __`isHidden` :__
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This boolean tells us if the status has been unrendered to save
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CPUs.
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*/
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export default class Status extends ImmutablePureComponent {
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static contextTypes = {
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router : PropTypes.object,
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};
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static propTypes = {
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id : PropTypes.number,
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status : ImmutablePropTypes.map,
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account : ImmutablePropTypes.map,
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settings : ImmutablePropTypes.map,
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me : PropTypes.number,
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onFavourite : PropTypes.func,
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onReblog : PropTypes.func,
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onModalReblog : PropTypes.func,
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onDelete : PropTypes.func,
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onMention : PropTypes.func,
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onMute : PropTypes.func,
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onMuteConversation : PropTypes.func,
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onBlock : PropTypes.func,
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onReport : PropTypes.func,
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onOpenMedia : PropTypes.func,
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onOpenVideo : PropTypes.func,
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onDeleteNotification : PropTypes.func,
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reblogModal : PropTypes.bool,
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deleteModal : PropTypes.bool,
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autoPlayGif : PropTypes.bool,
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muted : PropTypes.bool,
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collapse : PropTypes.bool,
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prepend : PropTypes.string,
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withDismiss : PropTypes.bool,
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notificationId : PropTypes.number,
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intersectionObserverWrapper : PropTypes.object,
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};
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state = {
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isExpanded : null,
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isIntersecting : true,
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isHidden : false,
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}
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/*
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### Implementation
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#### `updateOnProps` and `updateOnStates`.
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`updateOnProps` and `updateOnStates` tell the component when to update.
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We specify them explicitly because some of our props are dynamically=
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generated functions, which would otherwise always trigger an update.
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Of course, this means that if we add an important prop, we will need
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to remember to specify it here.
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*/
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updateOnProps = [
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'status',
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'account',
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'settings',
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'prepend',
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'me',
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'boostModal',
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'autoPlayGif',
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'muted',
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'collapse',
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]
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updateOnStates = [
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'isExpanded',
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]
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/*
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#### `componentWillReceiveProps()`.
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If our settings have changed to disable collapsed statuses, then we
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need to make sure that we uncollapse every one. We do that by watching
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for changes to `settings.collapsed.enabled` in
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`componentWillReceiveProps()`.
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We also need to watch for changes on the `collapse` prop---if this
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changes to anything other than `undefined`, then we need to collapse or
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uncollapse our status accordingly.
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*/
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componentWillReceiveProps (nextProps) {
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if (!nextProps.settings.getIn(['collapsed', 'enabled'])) {
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if (this.state.isExpanded === false) {
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this.setExpansion(null);
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}
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} else if (
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nextProps.collapse !== this.props.collapse &&
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nextProps.collapse !== undefined
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) this.setExpansion(nextProps.collapse ? false : null);
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}
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/*
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#### `componentDidMount()`.
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When mounting, we just check to see if our status should be collapsed,
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and collapse it if so. We don't need to worry about whether collapsing
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is enabled here, because `setExpansion()` already takes that into
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account.
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The cases where a status should be collapsed are:
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- The `collapse` prop has been set to `true`
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- The user has decided in local settings to collapse all statuses.
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- The user has decided to collapse all notifications ('muted'
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statuses).
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- The user has decided to collapse long statuses and the status is
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over 400px (without media, or 650px with).
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- The status is a reply and the user has decided to collapse all
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replies.
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- The status contains media and the user has decided to collapse all
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statuses with media.
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We also start up our intersection observer to monitor our statuses.
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`componentMounted` lets us know that everything has been set up
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properly and our intersection observer is good to go.
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*/
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componentDidMount () {
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const { node, handleIntersection } = this;
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const {
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status,
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settings,
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collapse,
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muted,
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id,
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intersectionObserverWrapper,
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} = this.props;
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const autoCollapseSettings = settings.getIn(['collapsed', 'auto']);
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if (
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collapse ||
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autoCollapseSettings.get('all') || (
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autoCollapseSettings.get('notifications') && muted
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) || (
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autoCollapseSettings.get('lengthy') &&
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node.clientHeight > (
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status.get('media_attachments').size && !muted ? 650 : 400
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)
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) || (
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autoCollapseSettings.get('replies') &&
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status.get('in_reply_to_id', null) !== null
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) || (
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autoCollapseSettings.get('media') &&
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!(status.get('spoiler_text').length) &&
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status.get('media_attachments').size
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)
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) this.setExpansion(false);
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if (!intersectionObserverWrapper) return;
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else intersectionObserverWrapper.observe(
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id,
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node,
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handleIntersection
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);
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this.componentMounted = true;
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}
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/*
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#### `shouldComponentUpdate()`.
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If the status is about to be both offscreen (not intersecting) and
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hidden, then we only need to update it if it's not that way currently.
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If the status is moving from offscreen to onscreen, then we *have* to
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re-render, so that we can unhide the element if necessary.
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If neither of these cases are true, we can leave it up to our
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`updateOnProps` and `updateOnStates` arrays.
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*/
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shouldComponentUpdate (nextProps, nextState) {
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switch (true) {
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case !nextState.isIntersecting && nextState.isHidden:
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return this.state.isIntersecting || !this.state.isHidden;
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case nextState.isIntersecting && !this.state.isIntersecting:
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return true;
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default:
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return super.shouldComponentUpdate(nextProps, nextState);
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}
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}
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/*
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#### `componentDidUpdate()`.
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If our component is being rendered for any reason and an update has
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triggered, this will save its height.
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This is, frankly, a bit overkill, as the only instance when we
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actually *need* to update the height right now should be when the
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value of `isExpanded` has changed. But it makes for more readable
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code and prevents bugs in the future where the height isn't set
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properly after some change.
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*/
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componentDidUpdate () {
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if (
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this.state.isIntersecting || !this.state.isHidden
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) this.saveHeight();
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}
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/*
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#### `componentWillUnmount()`.
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If our component is about to unmount, then we'd better unset
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`this.componentMounted`.
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*/
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componentWillUnmount () {
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this.componentMounted = false;
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}
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/*
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#### `handleIntersection()`.
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`handleIntersection()` either hides the status (if it is offscreen) or
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unhides it (if it is onscreen). It's called by
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`intersectionObserverWrapper.observe()`.
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If our status isn't intersecting, we schedule an idle task (using the
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aptly-named `scheduleIdleTask()`) to hide the status at the next
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available opportunity.
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tootsuite/mastodon left us with the following enlightening comment
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regarding this function:
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> Edge 15 doesn't support isIntersecting, but we can infer it
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It then implements a polyfill (intersectionRect.height > 0) which isn't
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actually sufficient. The short answer is, this behaviour isn't really
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supported on Edge but we can get kinda close.
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*/
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handleIntersection = (entry) => {
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const isIntersecting = (
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typeof entry.isIntersecting === 'boolean' ?
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entry.isIntersecting :
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entry.intersectionRect.height > 0
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);
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this.setState(
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(prevState) => {
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if (prevState.isIntersecting && !isIntersecting) {
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scheduleIdleTask(this.hideIfNotIntersecting);
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}
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return {
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isIntersecting : isIntersecting,
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isHidden : false,
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};
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}
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);
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}
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/*
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#### `hideIfNotIntersecting()`.
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This function will hide the status if we're still not intersecting.
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Hiding the status means that it will just render an empty div instead
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of actual content, which saves RAMS and CPUs or some such.
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*/
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hideIfNotIntersecting = () => {
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if (!this.componentMounted) return;
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this.setState(
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(prevState) => ({ isHidden: !prevState.isIntersecting })
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);
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}
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/*
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#### `saveHeight()`.
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`saveHeight()` saves the height of our status so that when whe hide it
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we preserve its dimensions. We only want to store our height, though,
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if our status has content (otherwise, it would imply that it is
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already hidden).
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*/
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saveHeight = () => {
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if (this.node && this.node.children.length) {
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this.height = this.node.getBoundingClientRect().height;
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}
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}
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/*
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#### `setExpansion()`.
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`setExpansion()` sets the value of `isExpanded` in our state. It takes
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one argument, `value`, which gives the desired value for `isExpanded`.
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The default for this argument is `null`.
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`setExpansion()` automatically checks for us whether toot collapsing
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is enabled, so we don't have to.
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We use a `switch` statement to simplify our code.
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*/
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setExpansion = (value) => {
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switch (true) {
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case value === undefined || value === null:
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this.setState({ isExpanded: null });
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break;
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case !value && this.props.settings.getIn(['collapsed', 'enabled']):
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this.setState({ isExpanded: false });
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break;
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case !!value:
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this.setState({ isExpanded: true });
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break;
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}
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}
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/*
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#### `handleRef()`.
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`handleRef()` just saves a reference to our status node to `this.node`.
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It also saves our height, in case the height of our node has changed.
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*/
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handleRef = (node) => {
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this.node = node;
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this.saveHeight();
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}
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/*
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#### `parseClick()`.
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`parseClick()` takes a click event and responds appropriately.
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If our status is collapsed, then clicking on it should uncollapse it.
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If `Shift` is held, then clicking on it should collapse it.
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Otherwise, we open the url handed to us in `destination`, if
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applicable.
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*/
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parseClick = (e, destination) => {
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const { router } = this.context;
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const { status } = this.props;
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const { isExpanded } = this.state;
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if (destination === undefined) {
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destination = `/statuses/${
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status.getIn(['reblog', 'id'], status.get('id'))
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}`;
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}
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if (e.button === 0) {
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if (isExpanded === false) this.setExpansion(null);
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else if (e.shiftKey) {
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this.setExpansion(false);
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document.getSelection().removeAllRanges();
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} else router.history.push(destination);
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e.preventDefault();
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}
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}
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/*
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#### `render()`.
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`render()` actually puts our element on the screen. The particulars of
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this operation are further explained in the code below.
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*/
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render () {
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const { parseClick, setExpansion, handleRef } = this;
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const {
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status,
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account,
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settings,
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collapsed,
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muted,
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prepend,
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intersectionObserverWrapper,
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onOpenVideo,
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onOpenMedia,
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autoPlayGif,
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...other
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} = this.props;
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const { isExpanded, isIntersecting, isHidden } = this.state;
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let background = null;
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let attachments = null;
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let media = null;
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let mediaIcon = null;
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/*
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If we don't have a status, then we don't render anything.
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*/
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if (status === null) {
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return null;
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}
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/*
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If our status is offscreen and hidden, then we render an empty <div> in
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its place. We fill it with "content" but note that opacity is set to 0.
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*/
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if (!isIntersecting && isHidden) {
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return (
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<div
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ref={this.handleRef}
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data-id={status.get('id')}
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style={{
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height : `${this.height}px`,
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opacity : 0,
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overflow : 'hidden',
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}}
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>
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{
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status.getIn(['account', 'display_name']) ||
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status.getIn(['account', 'username'])
|
|
}
|
|
{status.get('content')}
|
|
</div>
|
|
);
|
|
}
|
|
|
|
/*
|
|
|
|
If user backgrounds for collapsed statuses are enabled, then we
|
|
initialize our background accordingly. This will only be rendered if
|
|
the status is collapsed.
|
|
|
|
*/
|
|
|
|
if (
|
|
settings.getIn(['collapsed', 'backgrounds', 'user_backgrounds'])
|
|
) background = status.getIn(['account', 'header']);
|
|
|
|
/*
|
|
|
|
This handles our media attachments. Note that we don't show media on
|
|
muted (notification) statuses. If the media type is unknown, then we
|
|
simply ignore it.
|
|
|
|
After we have generated our appropriate media element and stored it in
|
|
`media`, we snatch the thumbnail to use as our `background` if media
|
|
backgrounds for collapsed statuses are enabled.
|
|
|
|
*/
|
|
|
|
attachments = status.get('media_attachments');
|
|
if (attachments.size && !muted) {
|
|
if (attachments.some((item) => item.get('type') === 'unknown')) {
|
|
|
|
} else if (
|
|
attachments.getIn([0, 'type']) === 'video'
|
|
) {
|
|
media = ( // Media type is 'video'
|
|
<StatusPlayer
|
|
media={attachments.get(0)}
|
|
sensitive={status.get('sensitive')}
|
|
letterbox={settings.getIn(['media', 'letterbox'])}
|
|
fullwidth={settings.getIn(['media', 'fullwidth'])}
|
|
height={250}
|
|
onOpenVideo={onOpenVideo}
|
|
/>
|
|
);
|
|
mediaIcon = 'video-camera';
|
|
} else { // Media type is 'image' or 'gifv'
|
|
media = (
|
|
<StatusGallery
|
|
media={attachments}
|
|
sensitive={status.get('sensitive')}
|
|
letterbox={settings.getIn(['media', 'letterbox'])}
|
|
fullwidth={settings.getIn(['media', 'fullwidth'])}
|
|
height={250}
|
|
onOpenMedia={onOpenMedia}
|
|
autoPlayGif={autoPlayGif}
|
|
/>
|
|
);
|
|
mediaIcon = 'picture-o';
|
|
}
|
|
|
|
if (
|
|
!status.get('sensitive') &&
|
|
!(status.get('spoiler_text').length > 0) &&
|
|
settings.getIn(['collapsed', 'backgrounds', 'preview_images'])
|
|
) background = attachments.getIn([0, 'preview_url']);
|
|
}
|
|
|
|
|
|
/*
|
|
|
|
Finally, we can render our status. We just put the pieces together
|
|
from above. We only render the action bar if the status isn't
|
|
collapsed.
|
|
|
|
*/
|
|
|
|
return (
|
|
<article
|
|
className={
|
|
`status${
|
|
muted ? ' muted' : ''
|
|
} status-${status.get('visibility')}${
|
|
isExpanded === false ? ' collapsed' : ''
|
|
}${
|
|
isExpanded === false && background ? ' has-background' : ''
|
|
}`
|
|
}
|
|
style={{
|
|
backgroundImage: (
|
|
isExpanded === false && background ?
|
|
`url(${background})` :
|
|
'none'
|
|
),
|
|
}}
|
|
ref={handleRef}
|
|
>
|
|
{prepend && account ? (
|
|
<StatusPrepend
|
|
type={prepend}
|
|
account={account}
|
|
parseClick={parseClick}
|
|
notificationId={this.props.notificationId}
|
|
onDeleteNotification={this.props.onDeleteNotification}
|
|
/>
|
|
) : null}
|
|
<StatusHeader
|
|
account={status.get('account')}
|
|
friend={account}
|
|
mediaIcon={mediaIcon}
|
|
visibility={status.get('visibility')}
|
|
collapsible={settings.getIn(['collapsed', 'enabled'])}
|
|
collapsed={isExpanded === false}
|
|
parseClick={parseClick}
|
|
setExpansion={setExpansion}
|
|
/>
|
|
<StatusContent
|
|
status={status}
|
|
media={media}
|
|
mediaIcon={mediaIcon}
|
|
expanded={isExpanded}
|
|
setExpansion={this.setExpansion}
|
|
onHeightUpdate={this.saveHeight}
|
|
parseClick={parseClick}
|
|
/>
|
|
{isExpanded !== false ? (
|
|
<StatusActionBar
|
|
{...other}
|
|
status={status}
|
|
account={status.get('account')}
|
|
/>
|
|
) : null}
|
|
</article>
|
|
);
|
|
|
|
}
|
|
|
|
}
|