[Plugin] Live stream canvas via webrtc (#976)

* inline stylesheets when loaded

* set empty link elements to loaded by default

* Clean up stylesheet manager

* Remove attribute mutation code

* Update packages/rrweb/test/record.test.ts

* Update packages/rrweb/test/record.test.ts

* Update packages/rrweb/test/record.test.ts

* Update packages/rrweb/scripts/repl.js

* Update packages/rrweb/test/record.test.ts

* Update packages/rrweb/src/record/index.ts

* Add todo

* Move require out of time sensitive assert

* Add waitForRAF, its more reliable than waitForTimeout

* Remove flaky tests

* Add recording stylesheets in iframes

* Remove variability from flaky test

* Make test more robust

* Fix naming

* Add test cases for inlineImages

* Add test cases for inlineImages

* Record iframe mutations cross page

* Test: should record images inside iframe with blob url after iframe was reloaded

* Handle negative ids in rrdom correctly

When iframes get inserted they create untracked elements, both on the dom and rrdom side.
Because they are untracked they generate negative numbers when fetching the id from mirror.
This creates a problem when comparing and fetching ids across mirrors.
This commit tries to get away from using negative ids as much as possible in rrdom's comparisons

* Update packages/rrdom/src/diff.ts

Co-authored-by: Yun Feng <yun.feng@anu.edu.au>

* Start unserialized nodes at -2

This way we don't accidentally think of them as mirror misses

* Set unserialized id starting number at -2

* Remove duplication

* Use turbo instead of lerna

* Skip benchmark as it is unreliable when executed in parallel

* Strip port number from serialization, it can vary

* Add settimeout to virtual dom test

* Remove console.log and refactor blob:url serialization

* Include references in tsconfig to indicate which monorepo packages are being used

* Add stream setup

* Migrate project to es module

* Add reference to rrweb from rrdom

* Move jest config to ESM

* Setup basic WebRTC canvas streaming

* Cleanup and refactor WebRTC streaming

* Remove ? which isn't propper javascript

* Yarn lock

* Remove webrtc code from rrweb

* Add plugin hooks

Record/Replay plugins
`.getMirror` exposes the mirror to plugins

Replay plugins
`.onBuild` called whenever a node was added to the dom

* Expose plugins with server

* Use unminified version for tests

* Don't include simple-peer in rrweb main project

* Add canvas webrtc plugin

Streams contents of canvas via webrtc

* ignore tsconfig.tsbuildinfo

* Cleanup unused code

* type definition files are no longer committed

* Devtools off by default

* Extract .css into its own file

* Refactor plugin apis and fix multi canvas streaming support

* Add readme to rrweb canvas webrtc plugin

* Reference canvas-webrtc plugin in documentation

* Forbidden non-null assertion

* Remove linting of each project, yarn lint:report will do this

* Remove test code

* Cut down line length

* fix CI failure and improve the zh_CN doc

* Update packages/rrweb/src/plugins/canvas-webrtc/replay/index.ts

Co-authored-by: Yun Feng <yun.feng@anu.edu.au>

* Cleaner styling of replay

Co-authored-by: Yun Feng <yun.feng@anu.edu.au>

* Clean up stream.js based on @Mark-Fenng's feedback

* Remove duplicate send

Co-authored-by: Yun Feng <yun.feng@anu.edu.au>
Co-authored-by: Yun Feng <yun.feng0817@gmail.com>

docs/recipes/canvas.md

@@ -1,6 +1,7 @@
 # Canvas
 
-Canvas is a special HTML element, which will not be recorded by rrweb by default. There are some options for recording and replaying Canvas.
+Canvas is a special HTML element, and will not be recorded by rrweb by default.
+There are some options for recording and replaying Canvas.
 
 Enable recording Canvas：
 
@@ -33,3 +34,6 @@ replayer.play();
 ```
 
 **Enable replaying Canvas will remove the sandbox, which may cause a potential security issue.**
+
+Alternatively you can stream canvas elements via webrtc with the canvas-webrtc plugin.
+For more information see [canvas-webrtc documentation](../../packages/rrweb/src/plugins/canvas-webrtc/Readme.md)

docs/recipes/canvas.zh_CN.md

@@ -34,3 +34,6 @@ replayer.play();
 ```
 
 **回放 Canvas 将会关闭沙盒策略，导致一定风险**。
+
+另外，您可以使用 canvas-webrtc 插件通过 WEBRTC 流式传输 Canvas 元素。
+有关更多信息，请参考[canvas-webrtc 文档](../../packages/rrweb/src/plugins/canvas-webrtc/readme.md)