Get screen-sharing working, somehow

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

res/css/views/elements/_DesktopCapturerSourcePicker.scss

@@ -0,0 +1,73 @@
+/*
+Copyright 2015, 2016 OpenMarket Ltd
+Copyright 2019 Michael Telatynski <7t3chguy@gmail.com>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_streamSelectorDialog {
+    -ms-text-overflow: ellipsis;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    overflow: hidden;
+    margin: 0 auto;
+    padding-right: 80px;
+}
+.desktop-capturer-selection-scroller {
+    width: 100%;
+    max-height: 100vh;
+    overflow-y: auto;
+}
+.desktop-capturer-selection-list {
+    max-width: calc(100% - 100px);
+    margin: 0 50px 0 50px;
+    padding: 0;
+    display: flex;
+    flex-wrap: wrap;
+    list-style: none;
+    overflow: hidden;
+    justify-content: center;
+}
+.desktop-capturer-selection-item {
+    display: flex;
+    margin: 4px;
+}
+.desktop-capturer-selection-button {
+    display: flex;
+    flex-direction: column;
+    align-items: stretch;
+    width: 145px;
+    margin: 0;
+    border: 0;
+    border-radius: 4px;
+    padding: 4px;
+    background: #20262b;
+    color: #ffffff;
+    text-align: left;
+    transition: background-color .15s, box-shadow .15s;
+}
+.desktop-capturer-selection-button:hover,
+.desktop-capturer-selection-button:focus {
+    background: #363c43;
+}
+.desktop-capturer-selection-thumbnail {
+    width: 100%;
+    height: 81px;
+    object-fit: cover;
+}
+.desktop-capturer-selection-name {
+    margin: 6px 0 6px;
+    white-space: nowrap;
+    text-overflow: ellipsis;
+    overflow: hidden;
+}

src/CallHandler.tsx

@@ -82,6 +82,13 @@ import CountlyAnalytics from "./CountlyAnalytics";
 import {UIFeature} from "./settings/UIFeature";
 import { CallError } from "matrix-js-sdk/src/webrtc/call";
 import { logger } from 'matrix-js-sdk/src/logger';
+import DesktopCapturerSourcePicker from "./components/views/elements/DesktopCapturerSourcePicker"
+
+export interface ElectronDesktopCapturerSource {
+    display_id: string;
+    id: string;
+    name: string;
+}
 
 enum AudioID {
     Ring = 'ringAudio',
@@ -474,7 +481,23 @@ export default class CallHandler {
                 });
                 return;
             }
-            call.placeScreenSharingCall(remoteElement, localElement);
+
+            const selectDesktopCapturerSource = async (
+                sources: Array<ElectronDesktopCapturerSource>,
+            ): Promise<ElectronDesktopCapturerSource> => {
+                console.log(DesktopCapturerSourcePicker);
+                const params = {
+                    sources: sources,
+                };
+
+                const {finished} = Modal.createDialog(DesktopCapturerSourcePicker, params);
+
+                const [source] = await finished;
+                console.log("Dialog closed with", source);
+                return source;
+            };
+
+            call.placeScreenSharingCall(remoteElement, localElement, selectDesktopCapturerSource);
         } else {
             console.error("Unknown conf call type: %s", type);
         }

src/components/views/elements/DesktopCapturerSourcePicker.tsx

@@ -0,0 +1,109 @@
+/*
+Copyright 2015, 2016 OpenMarket Ltd
+Copyright 2019 Michael Telatynski <7t3chguy@gmail.com>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React from 'react';
+import { _td } from '../../../languageHandler';
+import BaseDialog from "..//dialogs/BaseDialog"
+
+export interface DesktopCapturerSourceIProps {
+    source: ElectronDesktopCapturerSource,
+    onSelect(source: ElectronDesktopCapturerSource): void,
+}
+
+export class DesktopCapturerSource extends React.Component<DesktopCapturerSourceIProps> {
+    constructor(props) {
+        super(props);
+    }
+
+    onClick = (ev) => {
+        //ev.stopPropagation();
+        this.props.onSelect(this.props.source);
+    }
+
+    render() {
+        return (
+            <button
+                className="desktop-capturer-selection-button"
+                data-id={this.props.source.id}
+                title={this.props.source.name}
+                onClick={this.onClick} >
+                <img
+                    className="desktop-capturer-selection-thumbnail"
+                    src={this.props.source.thumbnail.toDataURL()}
+                />
+                <span className="desktop-capturer-selection-name">{this.props.source.name}</span>
+            </button>
+        );
+    }
+}
+
+export interface ElectronDesktopCapturerSource {
+    display_id: string;
+    id: string;
+    name: string;
+    thumbnail,
+    appIcon,
+}
+
+
+export interface DesktopCapturerSourcePickerIProps {
+    sources: Array<ElectronDesktopCapturerSource>;
+    onFinished(source: ElectronDesktopCapturerSource): void,
+}
+
+// TODO: Figure out a way to update sources for live preview
+
+export default class DesktopCapturerSourcePicker extends React.Component<DesktopCapturerSourcePickerIProps> {
+    constructor(props) {
+        super(props);
+    }
+
+    onSelect = (source) => {
+        this.props.onFinished(source);
+    }
+
+    render() {
+        const screens = this.props.sources
+            .filter((source) => {
+                return source.id.startsWith("screen");
+            })
+            .map((source) => {
+                return <DesktopCapturerSource source={source} onSelect={this.onSelect} key={source.id} />;
+            });
+
+        const windows = this.props.sources
+            .filter((source) => {
+                return source.id.startsWith("window");
+            })
+            .map((source) => {
+                return <DesktopCapturerSource source={source} onSelect={this.onSelect} key={source.id} />;
+            });
+
+        return (
+            <BaseDialog className="mx_streamSelectorDialog">
+                <h1>{_td("Screens")}</h1>
+                <div className="desktop-capturer-selection-scroller">
+                    { screens }
+                </div>
+                <h1>{_td("Windows")}</h1>
+                <div className="desktop-capturer-selection-scroller">
+                    { windows }
+                </div>
+            </BaseDialog>
+        );
+    }
+}