forked from mystiq/hydrogen-web
139 lines
4.9 KiB
JavaScript
139 lines
4.9 KiB
JavaScript
/*
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Copyright 2020 Bruno Windels <bruno@windels.cloud>
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import {tag, text} from "../../../general/html";
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import {BaseMessageView} from "./BaseMessageView.js";
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import {ReplyPreviewError, ReplyPreviewView} from "./ReplyPreviewView.js";
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export class TextMessageView extends BaseMessageView {
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renderMessageBody(t, vm) {
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const time = t.a({ href: vm.permaLink, target: "_blank" }, [
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t.time({className: {hidden: !vm.date}}, vm.date + " " + vm.time)
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]);
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const container = t.div({
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className: {
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"Timeline_messageBody": true,
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statusMessage: vm => vm.shape === "message-status",
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}
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}, t.mapView(vm => vm.replyTile, replyTile => {
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if (this._isReplyPreview) {
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// if this._isReplyPreview = true, this is already a reply preview, don't nest replies for now.
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return null;
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}
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else if (vm.isReply && !replyTile) {
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return new ReplyPreviewError();
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}
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else if (replyTile) {
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return new ReplyPreviewView(replyTile, this._viewClassForTile);
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}
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else {
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return null;
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}
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}));
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// exclude comment nodes as they are used by t.map and friends for placeholders
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const shouldRemove = (element) => element?.nodeType !== Node.COMMENT_NODE && element.className !== "ReplyPreviewView";
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t.mapSideEffect(vm => vm.body, body => {
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while (shouldRemove(container.lastChild)) {
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container.removeChild(container.lastChild);
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}
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for (const part of body.parts) {
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container.appendChild(renderPart(part));
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}
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container.appendChild(time);
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});
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return container;
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}
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}
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function renderList(listBlock) {
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const items = listBlock.items.map(item => tag.li(renderParts(item)));
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const start = listBlock.startOffset;
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if (start) {
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return tag.ol({ start }, items);
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} else {
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return tag.ul(items);
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}
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}
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function renderImage(imagePart) {
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const attributes = { src: imagePart.src };
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if (imagePart.width) { attributes.width = imagePart.width }
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if (imagePart.height) { attributes.height = imagePart.height }
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if (imagePart.alt) { attributes.alt = imagePart.alt }
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if (imagePart.title) { attributes.title = imagePart.title }
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return tag.img(attributes);
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}
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function renderPill(pillPart) {
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// The classes and structure are borrowed from avatar.js;
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// We don't call renderStaticAvatar because that would require
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// an intermediate object that has getAvatarUrl etc.
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const classes = `avatar size-12 usercolor${pillPart.avatarColorNumber}`;
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const avatar = tag.div({class: classes}, text(pillPart.avatarInitials));
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const children = renderParts(pillPart.children);
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children.unshift(avatar);
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return tag.a({class: "pill", href: pillPart.href, rel: "noopener", target: "_blank"}, children);
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}
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function renderTable(tablePart) {
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const children = [];
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if (tablePart.head) {
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const headers = tablePart.head
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.map(cell => tag.th(renderParts(cell)));
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children.push(tag.thead(tag.tr(headers)))
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}
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const rows = [];
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for (const row of tablePart.body) {
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const data = row.map(cell => tag.td(renderParts(cell)));
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rows.push(tag.tr(data));
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}
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children.push(tag.tbody(rows));
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return tag.table(children);
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}
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/**
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* Map from part to function that outputs DOM for the part
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*/
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const formatFunction = {
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header: headerBlock => tag["h" + Math.min(6,headerBlock.level)](renderParts(headerBlock.inlines)),
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codeblock: codeBlock => tag.pre(tag.code(text(codeBlock.text))),
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table: tableBlock => renderTable(tableBlock),
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code: codePart => tag.code(text(codePart.text)),
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text: textPart => text(textPart.text),
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link: linkPart => tag.a({href: linkPart.url, className: "link", target: "_blank", rel: "noopener" }, renderParts(linkPart.inlines)),
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pill: renderPill,
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format: formatPart => tag[formatPart.format](renderParts(formatPart.children)),
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rule: () => tag.hr(),
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list: renderList,
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image: renderImage,
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newline: () => tag.br()
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};
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function renderPart(part) {
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const f = formatFunction[part.type];
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if (!f) {
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return text(`[unknown part type ${part.type}]`);
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}
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return f(part);
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}
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function renderParts(parts) {
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return Array.from(parts, renderPart);
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}
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