Flatten threads: add UI components to messages
- A quote is added to messages to show which was the previous message in
the reply chain.
- A "reply" button is added to messages to allow users to compose a
comment which is added at the end of the reply chain.
- A bug is fixed in calculating the parent reply ID in the extra info
object. Now parent reply means the first message in a reply chain,
while previous reply means the previous message in the reply chain.
Bug: twpowertools:153
Change-Id: I699507ade52e80287dd634e61f835d53af6a904d
diff --git a/src/contentScripts/communityConsole/flattenThreads/components/QuoteAuthor.js b/src/contentScripts/communityConsole/flattenThreads/components/QuoteAuthor.js
new file mode 100644
index 0000000..2f1fb95
--- /dev/null
+++ b/src/contentScripts/communityConsole/flattenThreads/components/QuoteAuthor.js
@@ -0,0 +1,60 @@
+import '@material/web/icon/icon.js';
+import '@material/web/iconbutton/standard-icon-button.js';
+
+import {css, html, LitElement} from 'lit';
+
+import {SHARED_MD3_STYLES} from '../../../../common/styles/md3.js';
+
+export default class TwptFlattenThreadQuoteAuthor extends LitElement {
+ static properties = {
+ prevMessage: {type: Object},
+ };
+
+ static styles = [
+ SHARED_MD3_STYLES,
+ css`
+ :host {
+ display: flex;
+ flex-direction: row;
+ align-items: center;
+ max-width: max(25%, 150px);
+ color: var(--TWPT-interop-secondary-text, #444746);
+ }
+
+ :host > *:not(:last-child) {
+ margin-right: 4px;
+ }
+
+ .name {
+ overflow: hidden;
+ white-space: nowrap;
+ text-overflow: ellipsis;
+ }
+ `,
+ ];
+
+ constructor() {
+ super();
+ this.prevMessage = {};
+ }
+
+ render() {
+ return html`
+ <md-icon>reply</md-icon>
+ <span class="name">${this.prevMessage?.author?.[1]?.[1]}</span>
+ <md-standard-icon-button
+ icon="arrow_upward"
+ @click=${this.focusParent}>
+ </md-standard-icon-button>
+ `;
+ }
+
+ focusParent() {
+ const parentNode = document.querySelector(
+ '[data-twpt-message-id="' + this.prevMessage?.id + '"]');
+ parentNode.focus({preventScroll: true});
+ parentNode.scrollIntoView({behavior: 'smooth', block: 'start'});
+ }
+}
+window.customElements.define(
+ 'twpt-flatten-thread-quote-author', TwptFlattenThreadQuoteAuthor);
diff --git a/src/contentScripts/communityConsole/flattenThreads/components/ReplyButton.js b/src/contentScripts/communityConsole/flattenThreads/components/ReplyButton.js
new file mode 100644
index 0000000..681c433
--- /dev/null
+++ b/src/contentScripts/communityConsole/flattenThreads/components/ReplyButton.js
@@ -0,0 +1,99 @@
+import '@material/web/button/outlined-button.js';
+
+import {css, html, LitElement} from 'lit';
+import {waitFor} from 'poll-until-promise';
+
+import {SHARED_MD3_STYLES} from '../../../../common/styles/md3.js';
+import {getExtraInfoNodes} from '../flattenThreads.js';
+
+export default class TwptFlattenThreadReplyButton extends LitElement {
+ static properties = {
+ extraInfo: {type: Object},
+ };
+
+ static styles = [
+ SHARED_MD3_STYLES,
+ css`
+ md-outlined-button {
+ --md-outlined-button-container-shape: 0.25rem;
+ --md-outlined-button-container-height: 38px;
+ }
+ `,
+ ];
+
+ constructor() {
+ super();
+ this.extraInfo = {};
+ }
+
+ render() {
+ return html`
+ <md-outlined-button
+ label="Reply"
+ @click=${this.openReplyEditor}>
+ </md-outlined-button>
+ `;
+ }
+
+ #defaultReply(messagePayload) {
+ const quoteHeader = document.createElement('div');
+ const italics = document.createElement('i');
+ italics.textContent = this.extraInfo?.authorName + ' said:';
+ quoteHeader.append(italics);
+
+ const quote = document.createElement('blockquote');
+ quote.innerHTML = messagePayload;
+ getExtraInfoNodes(quote)?.forEach?.(node => {
+ node.parentNode.removeChild(node);
+ });
+
+ const br1 = document.createElement('br');
+ const br2 = document.createElement('br');
+
+ return [quoteHeader, quote, br1, br2];
+ }
+
+ openReplyEditor() {
+ const messageId = this.extraInfo?.id;
+ const messagePayload = document.querySelector(
+ '[data-twpt-message-id="' + messageId +
+ '"] .scTailwindThreadPostcontentroot html-blob');
+ if (!messagePayload) {
+ console.error('[flattenThreads] Payload not found.');
+ return;
+ }
+
+ const parentId = this.extraInfo?.parentId ?? this.extraInfo?.id;
+ const parentNodeReply =
+ document.querySelector('[data-twpt-message-id="' + parentId + '"]')
+ ?.closest?.('sc-tailwind-thread-message-message-card');
+ const parentNodeReplyButton = parentNodeReply?.querySelector?.(
+ '.scTailwindThreadMessageMessagecardadd-comment button');
+ if (!parentNodeReplyButton) {
+ // This is not critical: the reply button might already have been clicked
+ // (so it no longer exists), or the thread might be locked so replying is
+ // disabled and the button does'nt exist.
+ console.debug('[flattenThreads] Reply button not found.');
+ return;
+ }
+
+ // Click the reply button.
+ parentNodeReplyButton.click();
+
+ // Fill in the default reply text (it includes a quote of the message the
+ // user wishes to reply to).
+ waitFor(() => {
+ const editor =
+ parentNodeReply?.querySelector('sc-tailwind-thread-reply-editor');
+ if (editor) return Promise.resolve(editor);
+ return Promise.reject(new Error('Editor not found.'));
+ }, {interval: 75, timeout: 10 * 1000}).then(editor => {
+ const payload =
+ editor?.querySelector('.scTailwindSharedRichtexteditoreditor');
+
+ payload.prepend(...this.#defaultReply(messagePayload.innerHTML));
+ });
+ }
+}
+window.customElements.define(
+ 'twpt-flatten-thread-reply-button', TwptFlattenThreadReplyButton);
diff --git a/src/contentScripts/communityConsole/flattenThreads/components/index.js b/src/contentScripts/communityConsole/flattenThreads/components/index.js
new file mode 100644
index 0000000..08f1d18
--- /dev/null
+++ b/src/contentScripts/communityConsole/flattenThreads/components/index.js
@@ -0,0 +1,136 @@
+import '@material/web/button/tonal-button.js';
+
+import './QuoteAuthor.js';
+
+// Other components imported so they are also injected:
+import './ReplyButton.js';
+
+import * as DOMPurify from 'dompurify';
+import {css, html, LitElement} from 'lit';
+import {classMap} from 'lit/directives/class-map.js';
+import {unsafeHTML} from 'lit/directives/unsafe-html.js';
+
+import {SHARED_MD3_STYLES} from '../../../../common/styles/md3.js';
+
+export default class TwptFlattenThreadQuote extends LitElement {
+ static properties = {
+ prevMessage: {type: Object},
+ _expanded: {type: Boolean},
+ };
+
+ static styles = [
+ SHARED_MD3_STYLES,
+ css`
+ :host {
+ display: block;
+ }
+
+ .quote-container {
+ position: relative;
+ background-color: var(--TWPT-secondary-background, rgba(242, 242, 242, 0.502));
+ margin-bottom: 16px;
+ padding: 0 12px 12px 12px;
+ border-radius: 12px;
+ }
+
+ .payload-container {
+ padding-top: 12px;
+ }
+
+ .quote-container:not(.quote-container--expanded) .payload-container {
+ max-height: 4rem;
+ overflow: hidden;
+ }
+
+ .payload-container twpt-flatten-thread-quote-author {
+ float: right;
+ margin-left: 12px;
+ margin-top: -12px;
+ shape-outside: inset(0 10px 10px 0);
+ }
+
+ .payload {
+ display: inline;
+ }
+
+ .payload img {
+ max-width: 100%;
+ max-height: calc(100vh - 2*64px);
+ }
+
+ .payload blockquote {
+ border-left: 1px solid #757575;
+ margin: 0 0 0 4px;
+ padding: 0 0 0 4px;
+ }
+
+ .buttons-row {
+ position: absolute;
+ width: calc(100% - 24px);
+ display: flex;
+ flex-direction: row;
+ justify-content: center;
+ bottom: -20px;
+ transition: opacity .25s;
+ }
+
+ .quote-container:not(:hover) .buttons-row:not(:has(md-tonal-button:focus)) {
+ opacity: 0;
+ }
+
+ .buttons-row md-tonal-button {
+ --md-tonal-button-container-color: var(--TWPT-dark-flatten-replies-more-bg, rgba(222, 222, 222, 0.9));
+ --md-tonal-button-label-text-color: var(--TWPT-md-sys-color-on-surface);
+ --md-tonal-button-hover-label-text-color: var(--TWPT-md-sys-color-on-surface);
+ --md-tonal-button-focus-label-text-color: var(--TWPT-md-sys-color-on-surface);
+ --md-tonal-button-pressed-label-text-color: var(--TWPT-md-sys-color-on-surface);
+ --md-tonal-button-with-icon-icon-color: var(--TWPT-md-sys-color-on-surface);
+ --md-tonal-button-with-icon-hover-icon-color: var(--TWPT-md-sys-color-on-surface);
+ --md-tonal-button-with-icon-focus-icon-color: var(--TWPT-md-sys-color-on-surface);
+ --md-tonal-button-with-icon-pressed-icon-color: var(--TWPT-md-sys-color-on-surface);
+ }
+ `,
+ ];
+
+ constructor() {
+ super();
+ this.prevMessage = {};
+ this._expanded = false;
+ }
+
+ getTrustedPayload() {
+ return DOMPurify.sanitize(this.prevMessage?.payload ?? '');
+ }
+
+ render() {
+ const containerClasses = classMap({
+ 'quote-container': true,
+ 'quote-container--expanded': this._expanded,
+ });
+ return html`
+ <div class=${containerClasses}>
+ <div class="payload-container">
+ <twpt-flatten-thread-quote-author
+ .prevMessage=${this.prevMessage}>
+ </twpt-flatten-thread-quote-author>
+ <div class="payload">
+ ${unsafeHTML(this.getTrustedPayload())}
+ </div>
+ </div>
+ <div class="buttons-row">
+ <md-tonal-button
+ icon="${this._expanded ? 'expand_less' : 'expand_more'}"
+ label="${this._expanded ? 'Less' : 'More'}"
+ @click=${this.toggleExpanded}>
+ </md-tonal-button>
+ </div>
+ </div>
+ `;
+ }
+
+ toggleExpanded() {
+ this._expanded = !this._expanded;
+ }
+}
+window.customElements.define(
+ 'twpt-flatten-thread-quote', TwptFlattenThreadQuote);