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* Update frontend to Mithril 2 - Update Mithril version to v2.0.4 - Add Typescript typings for Mithril - Rename "props" to "attrs"; "initProps" to "initAttrs"; "m.prop" to "m.stream"; "m.withAttr" to "utils/withAttr". - Use Mithril 2's new lifecycle hooks - SubtreeRetainer has been rewritten to be more useful for the new system - Utils for forcing page re-initializations have been added (force attr in links, setRouteWithForcedRefresh util) - Other mechanical changes, following the upgrade guide - Remove some of the custom stuff in our Component base class - Introduce "fragments" for non-components that control their own DOM - Remove Mithril patches, introduce a few new ones (route attrs in <a>; - Redesign AlertManagerState `show` with 3 overloads: `show(children)`, `show(attrs, children)`, `show(componentClass, attrs, children)` - The `affixedSidebar` util has been replaced with an `AffixedSidebar` component Challenges: - `children` and `tag` are now reserved, and can not be used as attr names - Behavior of links to current page changed in Mithril. If moving to a page that is handled by the same component, the page component WILL NOT be re-initialized by default. Additional code to keep track of the current url is needed (See IndexPage, DiscussionPage, and UserPage for examples) - Native Promise rejections are shown on console when not handled - Instances of components can no longer be stored. The state pattern should be used instead. Refs #1821. Co-authored-by: Alexander Skvortsov <sasha.skvortsov109@gmail.com> Co-authored-by: Matthew Kilgore <tankerkiller125@gmail.com> Co-authored-by: Franz Liedke <franz@develophp.org>
152 lines
3.9 KiB
JavaScript
152 lines
3.9 KiB
JavaScript
import Post from './Post';
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import classList from '../../common/utils/classList';
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import PostUser from './PostUser';
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import PostMeta from './PostMeta';
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import PostEdited from './PostEdited';
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import EditPostComposer from './EditPostComposer';
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import ItemList from '../../common/utils/ItemList';
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import listItems from '../../common/helpers/listItems';
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import Button from '../../common/components/Button';
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import ComposerPostPreview from './ComposerPostPreview';
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/**
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* The `CommentPost` component displays a standard `comment`-typed post. This
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* includes a number of item lists (controls, header, and footer) surrounding
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* the post's HTML content.
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*
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* ### Attrs
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*
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* - `post`
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*/
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export default class CommentPost extends Post {
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oninit(vnode) {
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super.oninit(vnode);
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/**
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* If the post has been hidden, then this flag determines whether or not its
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* content has been expanded.
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*
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* @type {Boolean}
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*/
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this.revealContent = false;
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/**
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* Whether or not the user hover card inside of PostUser is visible.
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* The property must be managed in CommentPost to be able to use it in the subtree check
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*
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* @type {Boolean}
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*/
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this.cardVisible = false;
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this.subtree.check(
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() => this.cardVisible,
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() => this.isEditing(),
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() => this.revealContent
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);
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}
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content() {
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return super.content().concat([
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<header className="Post-header">
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<ul>{listItems(this.headerItems().toArray())}</ul>
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</header>,
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<div className="Post-body">
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{this.isEditing() ? <ComposerPostPreview className="Post-preview" composer={app.composer} /> : m.trust(this.attrs.post.contentHtml())}
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</div>,
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]);
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}
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onupdate(vnode) {
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super.onupdate();
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const contentHtml = this.isEditing() ? '' : this.attrs.post.contentHtml();
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// If the post content has changed since the last render, we'll run through
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// all of the <script> tags in the content and evaluate them. This is
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// necessary because TextFormatter outputs them for e.g. syntax highlighting.
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if (this.contentHtml !== contentHtml) {
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this.$('.Post-body script').each(function () {
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eval.call(window, $(this).text());
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});
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}
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this.contentHtml = contentHtml;
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}
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isEditing() {
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return app.composer.bodyMatches(EditPostComposer, { post: this.attrs.post });
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}
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elementAttrs() {
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const post = this.attrs.post;
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const attrs = super.elementAttrs();
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attrs.className =
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(attrs.className || '') +
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' ' +
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classList({
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CommentPost: true,
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'Post--hidden': post.isHidden(),
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'Post--edited': post.isEdited(),
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revealContent: this.revealContent,
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editing: this.isEditing(),
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});
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return attrs;
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}
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/**
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* Toggle the visibility of a hidden post's content.
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*/
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toggleContent() {
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this.revealContent = !this.revealContent;
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}
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/**
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* Build an item list for the post's header.
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*
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* @return {ItemList}
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*/
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headerItems() {
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const items = new ItemList();
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const post = this.attrs.post;
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items.add(
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'user',
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PostUser.component({
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post,
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cardVisible: this.cardVisible,
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oncardshow: () => {
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this.cardVisible = true;
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m.redraw();
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},
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oncardhide: () => {
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this.cardVisible = false;
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m.redraw();
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},
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}),
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100
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);
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items.add('meta', PostMeta.component({ post }));
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if (post.isEdited() && !post.isHidden()) {
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items.add('edited', PostEdited.component({ post }));
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}
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// If the post is hidden, add a button that allows toggling the visibility
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// of the post's content.
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if (post.isHidden()) {
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items.add(
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'toggle',
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Button.component({
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className: 'Button Button--default Button--more',
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icon: 'fas fa-ellipsis-h',
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onclick: this.toggleContent.bind(this),
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})
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);
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}
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return items;
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}
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}
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