From 1a50e697ceaaf93e81965cb49d195a7735fa10ed Mon Sep 17 00:00:00 2001
From: Sean Yesmunt <sean@lbry.io>
Date: Wed, 29 Apr 2020 16:50:06 -0400
Subject: [PATCH] embed functionality inside markdown posts

---
 .../fileViewerEmbeddedTitle/view.jsx          |  27 ----
 .../common/form-components/form-field.jsx     |   2 +-
 .../common/markdown-preview-internal.jsx      | 121 ---------------
 ui/component/common/markdown-preview.jsx      | 144 +++++++++++++++++-
 ui/component/embedPlayButton/index.js         |  19 +++
 ui/component/embedPlayButton/view.jsx         |  60 ++++++++
 ui/component/fileRenderFloating/index.js      |   9 +-
 ui/component/fileRenderFloating/view.jsx      |  16 +-
 .../fileViewerEmbeddedTitle/index.js          |   0
 ui/component/fileViewerEmbeddedTitle/view.jsx |  38 +++++
 ui/component/viewers/videoViewer/view.jsx     |   2 +-
 ui/constants/action_types.js                  |   1 +
 ui/redux/actions/content.js                   |  34 +++--
 ui/redux/reducers/content.js                  |   6 +
 ui/redux/selectors/content.js                 |  17 ++-
 ui/scss/component/_embed-player.scss          |  17 +++
 ui/scss/component/_file-render.scss           |   4 +
 ui/scss/component/_markdown-preview.scss      |  12 --
 18 files changed, 343 insertions(+), 186 deletions(-)
 delete mode 100644 lbrytv/component/fileViewerEmbeddedTitle/view.jsx
 delete mode 100644 ui/component/common/markdown-preview-internal.jsx
 create mode 100644 ui/component/embedPlayButton/index.js
 create mode 100644 ui/component/embedPlayButton/view.jsx
 rename {lbrytv => ui}/component/fileViewerEmbeddedTitle/index.js (100%)
 create mode 100644 ui/component/fileViewerEmbeddedTitle/view.jsx

diff --git a/lbrytv/component/fileViewerEmbeddedTitle/view.jsx b/lbrytv/component/fileViewerEmbeddedTitle/view.jsx
deleted file mode 100644
index de09393da..000000000
--- a/lbrytv/component/fileViewerEmbeddedTitle/view.jsx
+++ /dev/null
@@ -1,27 +0,0 @@
-// @flow
-import React from 'react';
-import Button from 'component/button';
-import { formatLbryUrlForWeb } from 'util/url';
-import { withRouter } from 'react-router';
-import { URL } from 'config';
-import * as ICONS from 'constants/icons';
-
-type Props = {
-  uri: string,
-  title: ?string,
-};
-
-function fileViewerEmbeddedTitle(props: Props) {
-  const { uri, title } = props;
-
-  const lbrytvLink = `${URL}${formatLbryUrlForWeb(uri)}?src=embed`;
-
-  return (
-    <div className="file-viewer__embedded-title">
-      <Button label={title} button="link" href={lbrytvLink} />
-      <Button className="file-viewer__overlay-logo file-viewer__embedded-title-logo" icon={ICONS.LBRY} href={URL} />
-    </div>
-  );
-}
-
-export default withRouter(fileViewerEmbeddedTitle);
diff --git a/ui/component/common/form-components/form-field.jsx b/ui/component/common/form-components/form-field.jsx
index 3c4b963b0..8a481201d 100644
--- a/ui/component/common/form-components/form-field.jsx
+++ b/ui/component/common/form-components/form-field.jsx
@@ -3,7 +3,7 @@ import type { ElementRef, Node } from 'react';
 import React from 'react';
 import ReactDOMServer from 'react-dom/server';
 import SimpleMDE from 'react-simplemde-editor';
-import MarkdownPreview from 'component/common/markdown-preview-internal';
+import MarkdownPreview from 'component/common/markdown-preview';
 import { openEditorMenu, stopContextMenu } from 'util/context-menu';
 import { MAX_CHARACTERS_IN_COMMENT as defaultTextAreaLimit } from 'constants/comments';
 import 'easymde/dist/easymde.min.css';
diff --git a/ui/component/common/markdown-preview-internal.jsx b/ui/component/common/markdown-preview-internal.jsx
deleted file mode 100644
index b2d3e9a99..000000000
--- a/ui/component/common/markdown-preview-internal.jsx
+++ /dev/null
@@ -1,121 +0,0 @@
-// @flow
-import * as React from 'react';
-import remark from 'remark';
-import remarkAttr from 'remark-attr';
-import remarkStrip from 'strip-markdown';
-import remarkEmoji from 'remark-emoji';
-import reactRenderer from 'remark-react';
-import ExternalLink from 'component/externalLink';
-import defaultSchema from 'hast-util-sanitize/lib/github.json';
-import { formatedLinks, inlineLinks } from 'util/remark-lbry';
-import { Link } from 'react-router-dom';
-import { formatLbryUrlForWeb } from 'util/url';
-
-type SimpleTextProps = {
-  children?: React.Node,
-};
-
-type SimpleLinkProps = {
-  href?: string,
-  title?: string,
-  children?: React.Node,
-};
-
-type MarkdownProps = {
-  strip?: boolean,
-  content: ?string,
-  promptLinks?: boolean,
-};
-
-const SimpleText = (props: SimpleTextProps) => {
-  return <span>{props.children}</span>;
-};
-
-const SimpleLink = (props: SimpleLinkProps) => {
-  const { title, children } = props;
-  let { href } = props;
-  if (IS_WEB && href && href.startsWith('lbry://')) {
-    href = formatLbryUrlForWeb(href);
-    // using Link after formatLbryUrl to handle "/" vs "#/"
-    // for web and desktop scenarios respectively
-    return (
-      <Link
-        title={title}
-        to={href}
-        onClick={e => {
-          e.stopPropagation();
-        }}
-      >
-        {children}
-      </Link>
-    );
-  }
-  return (
-    <a href={href} title={title}>
-      {children}
-    </a>
-  );
-};
-
-// Use github sanitation schema
-const schema = { ...defaultSchema };
-
-// Extend sanitation schema to support lbry protocol
-schema.protocols.href.push('lbry');
-schema.attributes.a.push('embed');
-
-const MarkdownPreview = (props: MarkdownProps) => {
-  const { content, strip, promptLinks } = props;
-
-  const remarkOptions: Object = {
-    sanitize: schema,
-    fragment: React.Fragment,
-    remarkReactComponents: {
-      a: promptLinks ? ExternalLink : SimpleLink,
-      // Workaraund of remarkOptions.Fragment
-      div: React.Fragment,
-    },
-  };
-
-  const remarkAttrOpts = {
-    scope: 'extended',
-    elements: ['link'],
-    extend: { link: ['embed'] },
-    defaultValue: true,
-  };
-
-  // Strip all content and just render text
-  if (strip) {
-    // Remove new lines and extra space
-    remarkOptions.remarkReactComponents.p = SimpleText;
-    return (
-      <span className="markdown-preview">
-        {
-          remark()
-            .use(remarkStrip)
-            .use(reactRenderer, remarkOptions)
-            .processSync(content).contents
-        }
-      </span>
-    );
-  }
-
-  return (
-    <div className="markdown-preview">
-      {
-        remark()
-          .use(remarkAttr, remarkAttrOpts)
-          // Remark plugins for lbry urls
-          // Note: The order is important
-          .use(formatedLinks)
-          .use(inlineLinks)
-          // Emojis
-          .use(remarkEmoji)
-          .use(reactRenderer, remarkOptions)
-          .processSync(content).contents
-      }
-    </div>
-  );
-};
-
-export default MarkdownPreview;
diff --git a/ui/component/common/markdown-preview.jsx b/ui/component/common/markdown-preview.jsx
index 3064b472c..bfbdd3169 100644
--- a/ui/component/common/markdown-preview.jsx
+++ b/ui/component/common/markdown-preview.jsx
@@ -1,8 +1,144 @@
-import React, { Suspense } from 'react';
-import MarkDownPreview from './markdown-preview-internal';
+// @flow
+import * as React from 'react';
+import remark from 'remark';
+import remarkAttr from 'remark-attr';
+import remarkStrip from 'strip-markdown';
+import remarkEmoji from 'remark-emoji';
+import reactRenderer from 'remark-react';
+import ExternalLink from 'component/externalLink';
+import defaultSchema from 'hast-util-sanitize/lib/github.json';
+import { formatedLinks, inlineLinks } from 'util/remark-lbry';
+import { Link } from 'react-router-dom';
+import { formatLbryUrlForWeb } from 'util/url';
+import EmbedPlayButton from 'component/embedPlayButton';
 
-const MarkdownPreview = props => {
-  return <MarkDownPreview {...props} />;
+type SimpleTextProps = {
+  children?: React.Node,
+};
+
+type SimpleLinkProps = {
+  href?: string,
+  title?: string,
+  children?: React.Node,
+};
+
+type MarkdownProps = {
+  strip?: boolean,
+  content: ?string,
+  promptLinks?: boolean,
+};
+
+const SimpleText = (props: SimpleTextProps) => {
+  return <span>{props.children}</span>;
+};
+
+const SimpleLink = (props: SimpleLinkProps) => {
+  const { title, children } = props;
+  const { href } = props;
+
+  if (!href) {
+    return children || null;
+  }
+
+  if (!href.startsWith('lbry://')) {
+    return (
+      <a href={href} title={title}>
+        {children}
+      </a>
+    );
+  }
+
+  const [uri, search] = href.split('?');
+  const urlParams = new URLSearchParams(search);
+  const embed = urlParams.get('embed');
+
+  if (embed) {
+    return <EmbedPlayButton uri={uri} />;
+  }
+
+  const webLink = formatLbryUrlForWeb(uri);
+  // using Link after formatLbryUrl to handle "/" vs "#/"
+  // for web and desktop scenarios respectively
+
+  return (
+    <Link
+      title={title}
+      to={webLink}
+      onClick={e => {
+        e.stopPropagation();
+      }}
+    >
+      {children}
+    </Link>
+  );
+};
+
+// Use github sanitation schema
+const schema = { ...defaultSchema };
+
+// Extend sanitation schema to support lbry protocol
+schema.protocols.href.push('lbry');
+schema.attributes.a.push('embed');
+
+const REPLACE_REGEX = /(<iframe src=")(.*?(?=))("><\/iframe>)/g;
+
+const MarkdownPreview = (props: MarkdownProps) => {
+  const { content, strip, promptLinks } = props;
+  const strippedContent = content
+    ? content.replace(REPLACE_REGEX, (x, y, iframeSrc) => {
+        return `${iframeSrc}?embed=true`;
+      })
+    : '';
+
+  const remarkOptions: Object = {
+    sanitize: schema,
+    fragment: React.Fragment,
+    remarkReactComponents: {
+      a: promptLinks ? ExternalLink : linkProps => <SimpleLink {...linkProps} />,
+      // Workaraund of remarkOptions.Fragment
+      div: React.Fragment,
+    },
+  };
+
+  const remarkAttrOpts = {
+    scope: 'extended',
+    elements: ['link'],
+    extend: { link: ['embed'] },
+    defaultValue: true,
+  };
+
+  // Strip all content and just render text
+  if (strip) {
+    // Remove new lines and extra space
+    remarkOptions.remarkReactComponents.p = SimpleText;
+    return (
+      <span className="markdown-preview">
+        {
+          remark()
+            .use(remarkStrip)
+            .use(reactRenderer, remarkOptions)
+            .processSync(content).contents
+        }
+      </span>
+    );
+  }
+
+  return (
+    <div className="markdown-preview">
+      {
+        remark()
+          .use(remarkAttr, remarkAttrOpts)
+          // Remark plugins for lbry urls
+          // Note: The order is important
+          .use(formatedLinks)
+          .use(inlineLinks)
+          // Emojis
+          .use(remarkEmoji)
+          .use(reactRenderer, remarkOptions)
+          .processSync(strippedContent).contents
+      }
+    </div>
+  );
 };
 
 export default MarkdownPreview;
diff --git a/ui/component/embedPlayButton/index.js b/ui/component/embedPlayButton/index.js
new file mode 100644
index 000000000..02b8187f9
--- /dev/null
+++ b/ui/component/embedPlayButton/index.js
@@ -0,0 +1,19 @@
+import * as SETTINGS from 'constants/settings';
+import { connect } from 'react-redux';
+import { makeSelectThumbnailForUri, doResolveUri, makeSelectClaimForUri } from 'lbry-redux';
+import { doFetchCostInfoForUri } from 'lbryinc';
+import { doSetFloatingUri } from 'redux/actions/content';
+import { makeSelectClientSetting } from 'redux/selectors/settings';
+import ChannelThumbnail from './view';
+
+const select = (state, props) => ({
+  thumbnail: makeSelectThumbnailForUri(props.uri)(state),
+  claim: makeSelectClaimForUri(props.uri)(state),
+  floatingPlayerEnabled: makeSelectClientSetting(SETTINGS.FLOATING_PLAYER)(state),
+});
+
+export default connect(select, {
+  doResolveUri,
+  doFetchCostInfoForUri,
+  doSetFloatingUri,
+})(ChannelThumbnail);
diff --git a/ui/component/embedPlayButton/view.jsx b/ui/component/embedPlayButton/view.jsx
new file mode 100644
index 000000000..27f5fe734
--- /dev/null
+++ b/ui/component/embedPlayButton/view.jsx
@@ -0,0 +1,60 @@
+// @flow
+import React, { useEffect } from 'react';
+import Button from 'component/button';
+import FileViewerEmbeddedTitle from 'component/fileViewerEmbeddedTitle';
+import { useHistory } from 'react-router-dom';
+import useIsMobile from 'effects/use-is-mobile';
+import { formatLbryUrlForWeb } from 'util/url';
+
+type Props = {
+  uri: string,
+  thumbnail: string,
+  claim: ?Claim,
+  doResolveUri: string => void,
+  doFetchCostInfoForUri: string => void,
+  doSetFloatingUri: string => void,
+  floatingPlayerEnabled: boolean,
+};
+
+export default function FileRenderFloating(props: Props) {
+  const {
+    uri,
+    thumbnail = '',
+    claim,
+    doResolveUri,
+    doFetchCostInfoForUri,
+    doSetFloatingUri,
+    floatingPlayerEnabled,
+  } = props;
+  const { push } = useHistory();
+  const isMobile = useIsMobile();
+  const hasResolvedUri = claim !== undefined;
+
+  useEffect(() => {
+    if (!hasResolvedUri) {
+      doResolveUri(uri);
+      doFetchCostInfoForUri(uri);
+    }
+  }, [uri, hasResolvedUri, doResolveUri, doFetchCostInfoForUri]);
+
+  function handleClick() {
+    if (isMobile || !floatingPlayerEnabled) {
+      const formattedUrl = formatLbryUrlForWeb(uri);
+      push(formattedUrl);
+    } else {
+      doSetFloatingUri(uri);
+    }
+  }
+
+  return (
+    <div
+      role="button"
+      className="embed__inline-button"
+      onClick={handleClick}
+      style={{ backgroundImage: `url('${thumbnail.replace(/'/g, "\\'")}')` }}
+    >
+      <FileViewerEmbeddedTitle uri={uri} isInApp />
+      <Button onClick={handleClick} iconSize={30} title={__('Play')} className={'button--icon button--play'} />
+    </div>
+  );
+}
diff --git a/ui/component/fileRenderFloating/index.js b/ui/component/fileRenderFloating/index.js
index 9223bedb9..1e8d4ce8c 100644
--- a/ui/component/fileRenderFloating/index.js
+++ b/ui/component/fileRenderFloating/index.js
@@ -3,17 +3,20 @@ import { connect } from 'react-redux';
 import { makeSelectFileInfoForUri, makeSelectTitleForUri } from 'lbry-redux';
 import {
   makeSelectIsPlayerFloating,
+  selectFloatingUri,
   selectPlayingUri,
   makeSelectFileRenderModeForUri,
   makeSelectStreamingUrlForUriWebProxy,
 } from 'redux/selectors/content';
 import { makeSelectClientSetting } from 'redux/selectors/settings';
-import { doSetPlayingUri } from 'redux/actions/content';
+import { doCloseFloatingPlayer } from 'redux/actions/content';
 import { withRouter } from 'react-router';
 import FileRenderFloating from './view';
 
 const select = (state, props) => {
-  const uri = selectPlayingUri(state);
+  const floatingUri = selectFloatingUri(state);
+  const playingUri = selectPlayingUri(state);
+  const uri = floatingUri || playingUri;
   return {
     uri,
     title: makeSelectTitleForUri(uri)(state),
@@ -26,7 +29,7 @@ const select = (state, props) => {
 };
 
 const perform = dispatch => ({
-  clearPlayingUri: () => dispatch(doSetPlayingUri(null)),
+  closeFloatingPlayer: () => dispatch(doCloseFloatingPlayer(null)),
 });
 
 export default withRouter(connect(select, perform)(FileRenderFloating));
diff --git a/ui/component/fileRenderFloating/view.jsx b/ui/component/fileRenderFloating/view.jsx
index 0517f17d4..746fcca63 100644
--- a/ui/component/fileRenderFloating/view.jsx
+++ b/ui/component/fileRenderFloating/view.jsx
@@ -21,13 +21,21 @@ type Props = {
   streamingUrl?: string,
   title: ?string,
   floatingPlayerEnabled: boolean,
-  clearPlayingUri: () => void,
+  closeFloatingPlayer: () => void,
   renderMode: string,
 };
 
 export default function FileRenderFloating(props: Props) {
-  const { fileInfo, uri, streamingUrl, title, isFloating, clearPlayingUri, floatingPlayerEnabled, renderMode } = props;
-
+  const {
+    fileInfo,
+    uri,
+    streamingUrl,
+    title,
+    isFloating,
+    closeFloatingPlayer,
+    floatingPlayerEnabled,
+    renderMode,
+  } = props;
   const isMobile = useIsMobile();
   const [fileViewerRect, setFileViewerRect] = usePersistedState('inline-file-viewer:rect');
   const [position, setPosition] = usePersistedState('floating-file-viewer:position', {
@@ -111,7 +119,7 @@ export default function FileRenderFloating(props: Props) {
                   <Button navigate={uri} icon={ICONS.VIEW} button="primary" />
                 </Tooltip>
                 <Tooltip label={__('Close')}>
-                  <Button onClick={clearPlayingUri} icon={ICONS.REMOVE} button="primary" />
+                  <Button onClick={closeFloatingPlayer} icon={ICONS.REMOVE} button="primary" />
                 </Tooltip>
               </div>
             </div>
diff --git a/lbrytv/component/fileViewerEmbeddedTitle/index.js b/ui/component/fileViewerEmbeddedTitle/index.js
similarity index 100%
rename from lbrytv/component/fileViewerEmbeddedTitle/index.js
rename to ui/component/fileViewerEmbeddedTitle/index.js
diff --git a/ui/component/fileViewerEmbeddedTitle/view.jsx b/ui/component/fileViewerEmbeddedTitle/view.jsx
new file mode 100644
index 000000000..e4ed74045
--- /dev/null
+++ b/ui/component/fileViewerEmbeddedTitle/view.jsx
@@ -0,0 +1,38 @@
+// @flow
+import React from 'react';
+import Button from 'component/button';
+import { formatLbryUrlForWeb } from 'util/url';
+import { withRouter } from 'react-router';
+import { URL } from 'config';
+import * as ICONS from 'constants/icons';
+
+type Props = {
+  uri: string,
+  title: ?string,
+  isInApp: boolean,
+};
+
+function FileViewerEmbeddedTitle(props: Props) {
+  const { uri, title, isInApp } = props;
+
+  let contentLink = `${formatLbryUrlForWeb(uri)}`;
+
+  if (!isInApp) {
+    contentLink = `${contentLink}?src=embed`;
+  }
+
+  const lbryLinkProps = isInApp ? { navigate: '/' } : { href: URL };
+
+  return (
+    <div className="file-viewer__embedded-title">
+      <Button label={title} button="link" navigate={contentLink} />
+      <Button
+        className="file-viewer__overlay-logo file-viewer__embedded-title-logo"
+        icon={ICONS.LBRY}
+        {...lbryLinkProps}
+      />
+    </div>
+  );
+}
+
+export default withRouter(FileViewerEmbeddedTitle);
diff --git a/ui/component/viewers/videoViewer/view.jsx b/ui/component/viewers/videoViewer/view.jsx
index a0745ee27..d57cb2d10 100644
--- a/ui/component/viewers/videoViewer/view.jsx
+++ b/ui/component/viewers/videoViewer/view.jsx
@@ -11,7 +11,7 @@ import { FORCE_CONTENT_TYPE_PLAYER } from 'constants/claim';
 import AutoplayCountdown from 'component/autoplayCountdown';
 import usePrevious from 'effects/use-previous';
 import FileViewerEmbeddedEnded from 'lbrytv/component/fileViewerEmbeddedEnded';
-import FileViewerEmbeddedTitle from 'lbrytv/component/fileViewerEmbeddedTitle';
+import FileViewerEmbeddedTitle from 'component/fileViewerEmbeddedTitle';
 import LoadingScreen from 'component/common/loading-screen';
 
 const PLAY_TIMEOUT_ERROR = 'play_timeout_error';
diff --git a/ui/constants/action_types.js b/ui/constants/action_types.js
index f82a88bbc..bc1939116 100644
--- a/ui/constants/action_types.js
+++ b/ui/constants/action_types.js
@@ -82,6 +82,7 @@ export const PUBLISH_STARTED = 'PUBLISH_STARTED';
 export const PUBLISH_COMPLETED = 'PUBLISH_COMPLETED';
 export const PUBLISH_FAILED = 'PUBLISH_FAILED';
 export const SET_PLAYING_URI = 'SET_PLAYING_URI';
+export const SET_FLOATING_URI = 'SET_FLOATING_URI';
 export const SET_CONTENT_POSITION = 'SET_CONTENT_POSITION';
 export const SET_CONTENT_LAST_VIEWED = 'SET_CONTENT_LAST_VIEWED';
 export const CLEAR_CONTENT_HISTORY_URI = 'CLEAR_CONTENT_HISTORY_URI';
diff --git a/ui/redux/actions/content.js b/ui/redux/actions/content.js
index 38e5ccd95..72d2126ce 100644
--- a/ui/redux/actions/content.js
+++ b/ui/redux/actions/content.js
@@ -1,4 +1,5 @@
 // @flow
+import * as ACTIONS from 'constants/action_types';
 import * as SETTINGS from 'constants/settings';
 import * as NOTIFICATION_TYPES from 'constants/subscriptions';
 import * as MODALS from 'constants/modal_types';
@@ -10,7 +11,6 @@ import { push } from 'connected-react-router';
 import { doUpdateUnreadSubscriptions } from 'redux/actions/subscriptions';
 import { makeSelectUnreadByChannel } from 'redux/selectors/subscriptions';
 import {
-  ACTIONS,
   Lbry,
   makeSelectFileInfoForUri,
   selectFileInfosByOutpoint,
@@ -24,6 +24,7 @@ import {
 import { makeSelectCostInfoForUri, Lbryio } from 'lbryinc';
 import { makeSelectClientSetting, selectosNotificationsEnabled, selectDaemonSettings } from 'redux/selectors/settings';
 import { formatLbryUrlForWeb } from 'util/url';
+import { selectFloatingUri } from 'redux/selectors/content';
 
 const DOWNLOAD_POLL_INTERVAL = 250;
 
@@ -134,6 +135,28 @@ export function doSetPlayingUri(uri: ?string) {
   };
 }
 
+export function doSetFloatingUri(uri: ?string) {
+  return (dispatch: Dispatch) => {
+    dispatch({
+      type: ACTIONS.SET_FLOATING_URI,
+      data: { uri },
+    });
+  };
+}
+
+export function doCloseFloatingPlayer() {
+  return (dispatch: Dispatch, getState: GetState) => {
+    const state = getState();
+    const floatingUri = selectFloatingUri(state);
+
+    if (floatingUri) {
+      dispatch(doSetFloatingUri(null));
+    } else {
+      dispatch(doSetPlayingUri(null));
+    }
+  };
+}
+
 export function doPurchaseUriWrapper(uri: string, cost: number, saveFile: boolean, cb: ?() => void) {
   return (dispatch: Dispatch, getState: () => any) => {
     function onSuccess(fileInfo) {
@@ -249,12 +272,3 @@ export function doClearContentHistoryAll() {
     dispatch({ type: ACTIONS.CLEAR_CONTENT_HISTORY_ALL });
   };
 }
-
-export function doSetHistoryPage(page: string) {
-  return (dispatch: Dispatch) => {
-    dispatch({
-      type: ACTIONS.SET_CONTENT_HISTORY_PAGE,
-      data: { page },
-    });
-  };
-}
diff --git a/ui/redux/reducers/content.js b/ui/redux/reducers/content.js
index 8b1c03b59..2faf0d431 100644
--- a/ui/redux/reducers/content.js
+++ b/ui/redux/reducers/content.js
@@ -3,6 +3,7 @@ import * as ACTIONS from 'constants/action_types';
 const reducers = {};
 const defaultState = {
   playingUri: null,
+  floatingUri: null,
   channelClaimCounts: {},
   positions: {},
   history: [],
@@ -13,6 +14,11 @@ reducers[ACTIONS.SET_PLAYING_URI] = (state, action) =>
     playingUri: action.data.uri,
   });
 
+reducers[ACTIONS.SET_FLOATING_URI] = (state, action) =>
+  Object.assign({}, state, {
+    floatingUri: action.data.uri,
+  });
+
 reducers[ACTIONS.SET_CONTENT_POSITION] = (state, action) => {
   const { claimId, outpoint, position } = action.data;
   return {
diff --git a/ui/redux/selectors/content.js b/ui/redux/selectors/content.js
index ab0bef47e..d992fba18 100644
--- a/ui/redux/selectors/content.js
+++ b/ui/redux/selectors/content.js
@@ -12,9 +12,9 @@ import {
   selectBalance,
   selectBlockedChannels,
   parseURI,
+  buildURI,
   makeSelectContentTypeForUri,
   makeSelectFileNameForUri,
-  buildURI,
 } from 'lbry-redux';
 import { selectAllCostInfoByUri, makeSelectCostInfoForUri } from 'lbryinc';
 import { selectShowMatureContent } from 'redux/selectors/settings';
@@ -31,17 +31,28 @@ const HISTORY_ITEMS_PER_PAGE = 50;
 export const selectState = (state: any) => state.content || {};
 
 export const selectPlayingUri = createSelector(selectState, state => state.playingUri);
+export const selectFloatingUri = createSelector(selectState, state => state.floatingUri);
 
 export const makeSelectIsPlaying = (uri: string) => createSelector(selectPlayingUri, playingUri => playingUri === uri);
 
 // below is dumb, some context: https://stackoverflow.com/questions/39622864/access-react-router-state-in-selector
-export const makeSelectIsPlayerFloating = location =>
-  createSelector(selectPlayingUri, playingUri => {
+export const makeSelectIsPlayerFloating = (location: UrlLocation) =>
+  createSelector(selectFloatingUri, selectPlayingUri, (floatingUri, playingUri) => {
+    if (floatingUri) {
+      if (!playingUri) {
+        return true;
+      } else {
+        return floatingUri !== playingUri;
+      }
+    }
+
+    // If there is no floatingPlayer explicitly set, see if the playingUri can float
     try {
       const { pathname, hash } = location;
       const newpath = buildURI(parseURI(pathname.slice(1).replace(/:/g, '#')));
       return playingUri && playingUri !== newpath + hash;
     } catch (e) {}
+
     return !!playingUri;
   });
 
diff --git a/ui/scss/component/_embed-player.scss b/ui/scss/component/_embed-player.scss
index 20882751c..0999cdef6 100644
--- a/ui/scss/component/_embed-player.scss
+++ b/ui/scss/component/_embed-player.scss
@@ -8,3 +8,20 @@
   align-items: center;
   background-color: var(--color-black);
 }
+
+.embed__inline-button {
+  @include thumbnail;
+  position: relative;
+  background-position: 50% 50%;
+  background-repeat: no-repeat;
+  background-size: 100%;
+  height: 300px;
+  width: 100%;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+
+  @media (max-width: $breakpoint-small) {
+    height: 200px;
+  }
+}
diff --git a/ui/scss/component/_file-render.scss b/ui/scss/component/_file-render.scss
index 1e97a7a96..146b29535 100644
--- a/ui/scss/component/_file-render.scss
+++ b/ui/scss/component/_file-render.scss
@@ -229,6 +229,10 @@
   .button {
     color: var(--color-white);
 
+    &:hover {
+      color: var(--color-white);
+    }
+
     &:first-of-type {
       max-width: 90%;
     }
diff --git a/ui/scss/component/_markdown-preview.scss b/ui/scss/component/_markdown-preview.scss
index d40d3524d..32d75b051 100644
--- a/ui/scss/component/_markdown-preview.scss
+++ b/ui/scss/component/_markdown-preview.scss
@@ -46,18 +46,6 @@
     font-size: 1em;
   }
 
-  // Paragraphs
-  p {
-    svg {
-      width: 1rem;
-      height: 1rem;
-
-      margin-left: 0.2rem;
-      position: relative;
-      top: 1px;
-    }
-  }
-
   p,
   blockquote,
   dl,