152 lines
5 KiB
JavaScript
152 lines
5 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 {TemplateView} from "../../general/TemplateView";
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import {Popup} from "../../general/Popup.js";
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import {Menu} from "../../general/Menu.js";
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import {viewClassForEntry} from "./common"
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export class MessageComposer extends TemplateView {
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constructor(viewModel) {
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super(viewModel);
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this._input = null;
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this._attachmentPopup = null;
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this._focusInput = null;
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this._rafResizeHandle = undefined;
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}
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render(t, vm) {
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this._input = t.textarea({
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onKeydown: e => this._onKeyDown(e),
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onInput: () => {
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vm.setInput(this._input.value);
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if (this._input.value) {
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this._adjustHeight();
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} else {
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this._clearHeight();
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}
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},
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placeholder: vm => vm.isEncrypted ? "Send an encrypted message…" : "Send a message…",
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rows: "1"
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});
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this._focusInput = () => this._input.focus();
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this.value.on("focus", this._focusInput);
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const replyPreview = t.map(vm => vm.replyViewModel, (rvm, t) => {
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const View = rvm && viewClassForEntry(rvm);
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if (!View) { return null; }
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return t.div({
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className: "MessageComposer_replyPreview"
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}, [
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t.span({ className: "replying" }, "Replying"),
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t.button({
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className: "cancel",
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onClick: () => this._clearReplyingTo()
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}, "Close"),
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t.view(new View(rvm, { interactive: false }, "div"))
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])
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});
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const input = t.div({className: "MessageComposer_input"}, [
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this._input,
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t.button({
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className: "sendFile",
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title: vm.i18n`Pick attachment`,
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onClick: evt => this._toggleAttachmentMenu(evt),
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}, vm.i18n`Send file`),
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t.button({
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className: "send",
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title: vm.i18n`Send`,
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onClick: () => this._trySend(),
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}, vm.i18n`Send`),
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]);
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return t.div({ className: {
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MessageComposer: true,
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MessageComposer_canSend: vm => vm.canSend
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} }, [replyPreview, input]);
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}
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unmount() {
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if (this._focusInput) {
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this.value.off("focus", this._focusInput);
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}
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super.unmount();
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}
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_clearReplyingTo() {
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this.value.clearReplyingTo();
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}
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async _trySend() {
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this._input.focus();
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// we clear the composer while enqueuing
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// and restore it when that didn't work somehow
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// to prevent the user from sending the message
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// every time they hit enter while it's still enqueuing.
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const {value} = this._input;
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const restoreValue = () => {
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this._input.value = value;
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this._adjustHeight();
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};
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this._input.value = "";
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this._clearHeight();
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try {
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if (!await this.value.sendMessage(value)) {
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restoreValue();
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}
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} catch (err) {
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restoreValue();
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console.error(err);
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}
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}
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_onKeyDown(event) {
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if (event.key === "Enter" && !event.shiftKey) {
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// don't insert newline into composer
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event.preventDefault();
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this._trySend();
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}
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}
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_toggleAttachmentMenu(evt) {
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if (this._attachmentPopup && this._attachmentPopup.isOpen) {
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this._attachmentPopup.close();
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} else {
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const vm = this.value;
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this._attachmentPopup = new Popup(new Menu([
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Menu.option(vm.i18n`Send video`, () => vm.sendVideo()).setIcon("video"),
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Menu.option(vm.i18n`Send picture`, () => vm.sendPicture()).setIcon("picture"),
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Menu.option(vm.i18n`Send file`, () => vm.sendFile()).setIcon("file"),
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]));
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this._attachmentPopup.trackInTemplateView(this);
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this._attachmentPopup.showRelativeTo(evt.target, 12);
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}
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}
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_adjustHeight() {
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if (this._rafResizeHandle) {
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return;
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}
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this._rafResizeHandle = window.requestAnimationFrame(() => {
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const scrollHeight = this._input.scrollHeight;
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this._input.style.height = `${scrollHeight}px`;
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this._rafResizeHandle = undefined;
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});
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}
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_clearHeight() {
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this._input.style.removeProperty("height");
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}
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}
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