ea3c555b49
Fix for #1575 where postcss was raising an exception * adapt the entire CSS as a whole in one pass with postcss, rather than adapting each split part separately * break up the postcss output again and assign to individual text nodes (kind of inverse of splitCssText at record side) * impose an upper bound of 30 iterations on the substring searches to preempt possible pathological behavior * add tests to demonstrate the scenario and prevent regression More technical details: * Fix algorithm; checks against `ix_end` within loop were incorrect when `ix_start` was bigger than zero. * Fix that length check against wrong array was causing 'should record style mutations with multiple child nodes and replay them correctly' test to fail. Note on last point: I haven't looked into things more deeply than that the test was complaining about missing .length after `replayer.pause(1000);`
rrweb-snapshot
Snapshot the DOM into a stateful and serializable data structure. Also, provide the ability to rebuild the DOM via snapshot.
API
This module export following methods:
snapshot
snapshot will traverse the DOM and return a stateful and serializable data structure which can represent the current DOM view.
There are several things will be done during snapshot:
- Inline some DOM states into HTML attributes, e.g, HTMLInputElement's value.
- Turn script tags into
noscripttags to avoid scripts being executed. - Try to inline stylesheets to make sure local stylesheets can be used.
- Make relative paths in href, src, CSS to be absolute paths.
- Give an id to each Node, and return the id node map when snapshot finished.
rebuild
rebuild will build the DOM according to the taken snapshot.
There are several things will be done during rebuild:
- Add data-rrid attribute if the Node is an Element.
- Create some extra DOM node like text node to place inline CSS and some states.
- Add data-extra-child-index attribute if Node has some extra child DOM.
serializeNodeWithId
serializeNodeWithId can serialize a node into snapshot format with id.
buildNodeWithSN
buildNodeWithSN will build DOM from serialized node and store serialized information in the mirror.getMeta(node).
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Core Team Members
Yuyz0112 |
Yun Feng |
eoghanmurray |
Juice10 open for rrweb consulting |
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