Files
rrweb/packages/rrdom/package.json
Justin Halsall 2887c8c7e5 #853 Second try: fast-forward implementation v2: virtual dom optimization (#895)
* rrdom: add a diff function for properties

* implement diffChildren function and unit tests

* finish basic functions of diff algorithm

* fix several bugs in the diff algorithm

* replace the virtual parent optimization in applyMutation()

* fix: moveAndHover after the diff algorithm is executed

* replace virtual style map with rrdom

cssom version has to be above 0.5.0 to pass virtual style tests

* fix: failed virtual style tests in replayer.test.ts

* fix: failed polyfill tests caused by nodejs compatibility of different versions

* fix: svg viewBox attribute doesn't work

Cause the attribute viewBox is case sensitive, set value for viewbox doesn't work

* feat: replace treeIndex optimization with rrdom

* fix bug of diffProps and disable smooth scrolling animation in fast-forward mode

* feat: add iframe support

* fix: @rollup/plugin-typescript build errors in rrweb-player

Error: @rollup/plugin-typescript TS1371: This import is never used as a value and must use 'import type' because the 'importsNotUsedAsValues' is set to 'error'

* fix: bug when fast-forward input events and add test for it

* add test for fast-forward scroll events

* fix: custom style rules don't get inserted into some iframe elements

* code style tweak

* fix: enable to diff iframe elements

* fix  the jest error "Unexpected token 'export'"

* try to fix build error of rrweb-player

* correct the attributes definition in rrdom

* fix: custom style rules are not inserted in some iframes

* add support for shadow dom

* add support for MediaInteraction

* add canvas support

* fix unit test error in rrdom

* add support for Text, Comment

* try to refactor RRDom

* refactor RRDom to reduce duplicate code

* rename document-browser to virtual-dom

* increase the test coverage for document.ts and add ownerDocument for it

* Merge branch 'master' into virtual-dom

* add more test for virtual-dom.ts

* use cssstyle in document-nodejs

* fix: bundle error

* improve document-nodejs

* enable to diff scroll positions of an element

* rename rrdom to virtualDom for more readability and make the tree public

* revert unknown change

* improve the css style parser for comments

* improve code style

* update typings

* add handling for the case where legacy_missingNodeRetryMap is not empty

* only import types from rrweb into rrdom

* Apply suggestions from code review

Co-authored-by: Justin Halsall <Juice10@users.noreply.github.com>

* Apply suggestions from code review

* fix building error in rrweb

* add a method setDefaultSN to set a default value for a RRNode's __sn

* fix rrweb test error and bump up other packages

* add support for custom property of css styles

* add a switch for virtual-dom optimization

* Apply suggestions from code review

1. add an enum type for NodeType
2. rename nodeType from rrweb-snapshot to RRNodeType
3. rename notSerializedId to unserializedId
4. add comments for some confusing variables

* adapt changes of #865 to virtual-dom and improve the test case for more coverage

* apply review suggestions

https://github.com/rrweb-io/rrweb/pull/853#pullrequestreview-922474953

* tweak the diff algorithm

* add description of the flag useVirtualDom and remove outdated logConfig

* Remove console.log

* Contain changes to document

* Upgrade rollup to 2.70.2

* Revert "Upgrade rollup to 2.70.2"

This reverts commit b1be81a2a76565935c9dc391f31beb7f64d25956.

* Fix type checking rrdom

* Fix typing error while bundling

* Fix tslib error on build

Rollup would output the following error:
`semantic error TS2343: This syntax requires an imported helper named '__spreadArray' which does not exist in 'tslib'. Consider upgrading your version of 'tslib'.`

* Increase memory limit for rollup

* Use esbuild for bundling

Speeds up bundling significantly

* Avoid circular dependencies and import un-bundled rrdom

* Fix imports

* Revert back to pre-esbuild

This reverts the following commits:
b7b3c8dbaa551a0129da1477136b1baaad28e6e1
72e23b8e27f9030d911358d3a17fe5ad1b3b5d4f
85d600a20c56cfa764cf1f858932ba14e67b1d23
61e1a5d323212ca8fbe0569e0b3062ddd53fc612

* Set node to lts (12 is no longer supported)

* Speed up bundling and use less memory

This fixes the out of memory errors happening while bundling

* remove __sn from rrdom

* fix typo

* test: add a test case for StyleSheet mutation exceptions while fast-forwarding

* rename Array.prototype.slice.call() to Array.from()

* improve test cases

* fix: PR #887 in 'virtual-dom' branch

* apply justin's suggestion on 'Array.from' refactor

related commit 0f6729d27a323260b36fbe79485a86715c0bc98a

* improve import code structure

Co-authored-by: Yun Feng <yun.feng@anu.edu.au>
2026-04-01 12:00:00 +08:00

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{
"name": "rrdom",
"version": "0.1.2",
"scripts": {
"dev": "rollup -c -w",
"bundle": "rollup --config",
"bundle:es-only": "cross-env ES_ONLY=true rollup --config",
"check-types": "tsc -noEmit",
"test": "jest",
"prepublish": "npm run bundle"
},
"keywords": [
"rrweb",
"rrdom"
],
"license": "MIT",
"main": "lib/rrdom.js",
"module": "es/rrdom.js",
"typings": "es",
"unpkg": "dist/rrdom.js",
"files": [
"dist",
"lib",
"es",
"typings"
],
"devDependencies": {
"@rollup/plugin-commonjs": "^20.0.0",
"@rollup/plugin-node-resolve": "^13.0.4",
"@types/cssom": "^0.4.1",
"@types/cssstyle": "^2.2.1",
"@types/jest": "^27.4.1",
"@types/nwsapi": "^2.2.2",
"@types/puppeteer": "^5.4.4",
"compare-versions": "^4.1.3",
"jest": "^27.5.1",
"puppeteer": "^9.1.1",
"rollup": "^2.56.3",
"rollup-plugin-terser": "^7.0.2",
"rollup-plugin-typescript2": "^0.31.2",
"rollup-plugin-web-worker-loader": "^1.6.1",
"rrweb-snapshot": "^1.1.14",
"ts-jest": "^27.1.3",
"typescript": "^4.6.2"
},
"dependencies": {
"cssom": "^0.5.0",
"cssstyle": "^2.3.0",
"nwsapi": "^2.2.0"
}
}