Debug: Show all events

res/css/_components.scss

@@ -124,6 +124,7 @@
 @import "./views/messages/_SenderProfile.scss";
 @import "./views/messages/_TextualEvent.scss";
 @import "./views/messages/_UnknownBody.scss";
+@import "./views/messages/_ViewSourceEvent.scss";
 @import "./views/room_settings/_AliasSettings.scss";
 @import "./views/room_settings/_ColorSettings.scss";
 @import "./views/rooms/_AppsDrawer.scss";

res/css/views/messages/_ViewSourceEvent.scss

@@ -0,0 +1,50 @@
+/*
+Copyright 2019 The Matrix.org Foundation C.I.C.
+
+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_EventTile_content.mx_ViewSourceEvent {
+    display: flex;
+    opacity: 0.6;
+    font-size: 12px;
+
+    pre, code {
+        flex: 1;
+    }
+
+    pre {
+        line-height: 1.2;
+        margin: 3.5px 0;
+    }
+
+    .mx_ViewSourceEvent_toggle {
+        width: 12px;
+        mask-repeat: no-repeat;
+        mask-position: 0 center;
+        mask-size: auto 12px;
+        visibility: hidden;
+        background-color: $accent-color;
+        mask-image: url('$(res)/img/feather-customised/widget/maximise.svg');
+    }
+
+    &.mx_ViewSourceEvent_expanded .mx_ViewSourceEvent_toggle {
+        mask-position: 0 bottom;
+        margin-bottom: 7px;
+        mask-image: url('$(res)/img/feather-customised/widget/minimise.svg');
+    }
+
+    &:hover .mx_ViewSourceEvent_toggle {
+        visibility: visible;
+    }
+}

src/components/structures/MessagePanel.js

@@ -24,6 +24,7 @@ import {wantsDateSeparator} from '../../DateUtils';
 import sdk from '../../index';
 
 import MatrixClientPeg from '../../MatrixClientPeg';
+import SettingsStore from '../../settings/SettingsStore';
 
 const CONTINUATION_MAX_INTERVAL = 5 * 60 * 1000; // 5 minutes
 const continuedTypes = ['m.sticker', 'm.room.message'];
@@ -248,6 +249,10 @@ module.exports = React.createClass({
             return false; // ignored = no show (only happens if the ignore happens after an event was received)
         }
 
+        if (SettingsStore.isFeatureEnabled("showHiddenEventsInTimeline")) {
+            return true;
+        }
+
         const EventTile = sdk.getComponent('rooms.EventTile');
         if (!EventTile.haveTileForEvent(mxEv)) {
             return false; // no tile = no show

src/components/views/messages/ViewSourceEvent.js

@@ -0,0 +1,67 @@
+/*
+Copyright 2019 The Matrix.org Foundation C.I.C.
+
+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 PropTypes from 'prop-types';
+import classNames from 'classnames';
+
+export default class ViewSourceEvent extends React.PureComponent {
+    static propTypes = {
+        /* the MatrixEvent to show */
+        mxEvent: PropTypes.object.isRequired,
+    };
+
+    constructor(props) {
+        super(props);
+
+        this.state = {
+            expanded: false,
+        };
+    }
+
+    onToggle = (ev) => {
+        ev.preventDefault();
+        const { expanded } = this.state;
+        this.setState({
+            expanded: !expanded,
+        });
+    }
+
+    render() {
+        const { mxEvent } = this.props;
+        const { expanded } = this.state;
+
+        let content;
+        if (expanded) {
+            content = <pre>{JSON.stringify(mxEvent, null, 4)}</pre>;
+        } else {
+            content = <code>{`{ "type": ${mxEvent.getType()} }`}</code>;
+        }
+
+        const classes = classNames("mx_ViewSourceEvent mx_EventTile_content", {
+            mx_ViewSourceEvent_expanded: expanded,
+        });
+
+        return <span className={classes}>
+            {content}
+            <a
+                className="mx_ViewSourceEvent_toggle"
+                href="#"
+                onClick={this.onToggle}
+            />
+        </span>;
+        }
+    }

src/components/views/rooms/EventTile.js

@@ -520,7 +520,10 @@ module.exports = withMatrixClient(React.createClass({
             eventType !== 'm.room.message' && eventType !== 'm.sticker' && eventType != 'm.room.create'
         );
 
-        const tileHandler = getHandlerTile(this.props.mxEvent);
+        let tileHandler = getHandlerTile(this.props.mxEvent);
+        if (!tileHandler && SettingsStore.isFeatureEnabled("showHiddenEventsInTimeline")) {
+            tileHandler = "messages.ViewSourceEvent";
+        }
         // This shouldn't happen: the caller should check we support this type
         // before trying to instantiate us
         if (!tileHandler) {

src/i18n/strings/en_EN.json

@@ -302,6 +302,7 @@
     "Render simple counters in room header": "Render simple counters in room header",
     "Edit messages after they have been sent (refresh to apply changes)": "Edit messages after they have been sent (refresh to apply changes)",
     "React to messages with emoji (refresh to apply changes)": "React to messages with emoji (refresh to apply changes)",
+    "Show hidden events in timeline": "Show hidden events in timeline",
     "Enable Emoji suggestions while typing": "Enable Emoji suggestions while typing",
     "Use compact timeline layout": "Use compact timeline layout",
     "Show a placeholder for removed messages": "Show a placeholder for removed messages",

src/settings/Settings.js

@@ -130,6 +130,12 @@ export const SETTINGS = {
         supportedLevels: LEVELS_FEATURE,
         default: false,
     },
+    "showHiddenEventsInTimeline": {
+        isFeature: true,
+        displayName: _td("Show hidden events in timeline"),
+        supportedLevels: LEVELS_FEATURE,
+        default: false,
+    },
     "MessageComposerInput.suggestEmoji": {
         supportedLevels: LEVELS_ACCOUNT_SETTINGS,
         displayName: _td('Enable Emoji suggestions while typing'),