The CSS is now served as an external file instead of being injected.
This was done to improve performance. Ideally we would come to a middle
ground between this and the former behaviour by injecting only the CSS
that was required for the initial page load, then lazily loading the
rest. However that change would be more complex. The hope was that
making all CSS external would at least be a slight improvement.
Performance metrics were collected before and after this change to
determine whether this change actually helped. The metrics collected
were the timing events provided by Chrome DevTools:
* DOM Content Loaded (DCL) [1]
* Load (L) [2]
* First Paint (FP) [3]
* First Contentful Paint (FCP) [3]
* First Meaningful Paint (FMP) [3]
Here are the results (units in milliseconds):
Injected CSS:
| Run | DCL | L | FP | FCP | FMP |
| :--- | ---: | ---: | ---: | ---: | ---: |
| 1 | 1569.45 | 1570.97 | 1700.36 | 1700.36 | 1700.36 |
| 2 | 1517.37 | 1518.84 | 1630.98 | 1630.98 | 1630.98 |
| 3 | 1603.71 | 1605.31 | 1712.56 | 1712.56 | 1712.56 |
| 4 | 1522.15 | 1523.72 | 1629.3 | 1629.3 | 1629.3 |
| **Min** | 1517.37 | 1518.84 | 1629.3 | 1629.3 | 1629.3 |
| **Max** | 1603.71 | 1605.31 | 1712.56 | 1712.56 | 1712.56 |
| **Mean** | 1553.17 | 1554.71 | 1668.3 | 1668.3 | 1668.3 |
| **Std. dev.** | 33.41 | 33.43 | 38.16 | 38.16 | 38.16 |
External CSS:
| Run | DCL | L | FP | FCP | FMP |
| :--- | ---: | ---: | ---: | ---: | ---: |
| 1 | 1595.4 | 1598.91 | 284.97 | 1712.86 | 1712.86 |
| 2 | 1537.55 | 1538.99 | 199.38 | 1633.5 | 1633.5 |
| 3 | 1571.28 | 1572.74 | 268.65 | 1677.03 | 1677.03 |
| 4 | 1510.98 | 1512.33 | 206.72 | 1607.03 | 1607.03 |
| **Min** | 1510.98 | 1512.33 | 199.38 | 1607.03 | 1607.03 |
| **Max** | 1595.4 | 1598.91 | 284.97 | 1712.86 | 1712.86 |
| **Mean** | 1553.8025 | 1555.7425 | 239.93 | 1657.605 | 1657.605 |
| **Std. dev.** | 29.5375 | 30.0825 | 36.88 | 37.34 | 37.34 |
Unfortunately, using an external CSS file made no discernible improvement
to the overall page load time. DCM and L were practically identical, and
FCP and FMP were marginally better (well within error margins).
However, the first paint time was _dramatically_ improved. This change
seems worthwhile for the first paint time improvement alone. It also
allows us to delete some code and remove a dependency.
The old `css.js` module included two third-party CSS files as well, so
those have been imported into the main Sass file. This was easier than
bundling them in the gulpfile.
The resulting CSS bundle needs to be served from the root because we're
using a few `@include` rules that make this assumption. We could move
this under `/css/` if desired, but we'd need to update each of these
`@include` rules.
Relates to #6646
[1]: https://developer.mozilla.org/en-US/docs/Web/Events/DOMContentLoaded
[2]: https://developer.mozilla.org/en-US/docs/Web/Events/load
[3]: https://developers.google.com/web/fundamentals/performance/user-centric-performance-metrics
* Abstract domain provider from its stream transport
Creating new provider-consuming extensions, like [a new
platform](https://github.com/MetaMask/metamask-extension/blob/develop/docs/porting_to_new_environment.md)
can be frustrating for new contributors because our provider
construction has been tangled with our streaming interface.
Here I've broken up our streaming domain connection from the provider
construction, so developers can more easily construct local and
domain-restricted providers without dealing with streams.
* Abstract public API from stream interface
* clean up noop
* Document non-streaming interface
* getSiteMetadata must be async
* Clean up filters on stream end
* Document cleaning up filters
* Allow named filterMiddleware to be cleaned up
* Linted
* Require site metadata
* Destroy any destroyable middleware during cleanup
* Lint
The Drizzle tests have not been used for some time. They were used to
ensure compatibility with newer versions of `web3` v1. If we want to
re-add tests to ensure compatibility with newer `web3` versions, we
should find some way of doing that more reliably than was done here -
these tests were somewhat flaky and unreliable.
While working on #6805, I noticed that many variables were being used
before they were declared. Technically this worked fine in practice
because we were using the `transform-es2015-block-scoping` Babel plugin,
which transforms `let` and `const` to `var`, which is hoisted. However,
after removing that Babel transformation, many things broke.
All instances of variables or classes being used before declared have
been fixed.
The `no-use-before-define` eslint rule has been added to catch these
cases going forward. The rule is disabled for function declarations for
the moment, because those are always hoisted. We could disable that too
if we want to, but it's purely stylistic and would require a lot more
changes.
* Introduce delay for eth_estimateGas calls with in test
* Add test that fails when gas estimates of contract method calls without gas are too high.
* Get transaction gas data from unApprovedTxs instead of confirmTransaction
* Fix selection of gas data in gas-modal-page-container.container
* Lint changes related to Version-6.7.2-gasLimitFix
* Fix e2e tests on Version-6.7.2-gasLimitFix
* Fix unit and integration tests for changes from Version-6.7.2-gasLimitFix
* more e2e fixes
* Add assertions for transaction values on confirm screen
* Fix display of transaction amount on confirm screen.
This silences a warning message that was printed to the console whenever
this module was loaded during tests.
The API changes between these two versions were reviewed carefully for
differences. The only difference made was to `PBKDF2_HMAC_SHA256.bytes`,
which was replaced by `Pbkdf2HmacSha256`.
The length argument no longer has a default value, so it has been set
to match what the default value was in the previous version we used,
which is 32 (the SHA256 hash size).
* transactions/pending - check nonce against the network and mark as dropped if not included in a block
* transactions/pending - unifiy "dropped" txs
* transactions/pending - test - fix for new expected behavior
* fix comment
* transactions/pending - clean up dropped event
* fix spelling
Co-Authored-By: frankiebee <frankie.diamond@gmail.com>
* nit fix
* test/tx-pending - clarify test description
* Set a default value for code in _determineTransactionCategory
* Adds e2e tests that fail when token txs without gas param are not properly handled.
* Adds unit tests for _determineTransactionCategory
* Base error throwing and simple gas setting in estimateTxGas on transactionCategory
* Add networks tab to settings, with header.
* Adds network list to settings network tab.
* Adds form to settings networks tab and connects it to network list.
* Network tab: form adding and editing working
* Settings network form properly handles input errors
* Add translations for settings network form
* Clean up styles of settings network tab.
* Add popup-view styles and behaviour to settings network tab.
* Fix save button on settings network form
* Adds 'Add Network' button and addMode to settings networks tab
* Lint fix for settings networks tab addition
* Fix navigation in settings networks tab.
* Editing an rpcurl in networks tab does not create new network, just changes rpc of old
* Fix layout of settings tabs other than network
* Networks dropdown 'Custom Rpc' item links to networks tab in settings.
* Update settings sidebar networks subheader.
* Make networks tab buttons width consistent with input widths in extension view.
* Fix settings screen subheader height in popup view
* Fix height of add networks button in popup view
* Add optional label to chainId and symbol form labels in networks setting tab
* Style fixes for networks tab headers
* Add ability to customize block explorer used by custom rpc
* Stylistic improvements+fixes to custom rpc form.
* Hide cancel button.
* Highlight and show network form of provider by default.
* Standardize network subheader name to 'Networks'
* Update e2e tests for new settings network form
* Update unit tests for new rpcPrefs prop
* Extract blockexplorer url construction into method.
* Fix broken styles on non-network tabs in popup mode
* Fix block explorer url links for cases when provider in state has not been updated.
* Fix vertical spacing of network form
* Don't allow click of save button on network form if nothing has changed
* Ensure add network button is shown in popup view
* Lint fix for networks tab
* Fix block explorer url preference setting.
* Fix e2e tests for custom blockexplorer in account details modal changes.
* Update integration test states to include frequentRpcList property
* Fix some capitalizations in en/messages.json
* Remove some console.logs added during custom rpc form work
* Fix external account link text and url for modal and dropdown.
* Documentation, url validation, proptype required additions and lint fixes on network tab and form.
* eslint: Check for unused function arguments
* eslint: Ignore unused '_' in argument list
Also allow any number of '_' e.g., '__' or '___' which is to be used sparingly
* Remove and rename unused arguments
* Adds a transactionCategory to txMeta for use in UI
* Update transaction controller and tx-gas-util documentation on new code param in multiple functions.
* Ensure home screen does not render if there are unapproved txs (#6501)
* Ensure that the confirm screen renders before the home screen if there are unapproved txs.
* Only render confirm screen before home screen on mount.
* inpage - revert _metamask api to isEnabled isApproved isUnlocked
* Send metrics event from backend for on chain transaction failures
* Passes state object to backEndMetaMetricsEvent, and adds getMetaMetricState selector
* Opens the original webpage from where installation of MetaMask was requested
* Asking for dynamic permissions
* code for forwarder/without extra permissions
* Lint fix for onboardingComplete message sending code.
Mark Stacey
Whymarrh Whitby
Alessandro Ricottone
Dan Finlay
Dan J Miller
Akshit Kr Nagpal
frankiebee
Paul Bouchon
Bruno Barbieri
pldespaigne
kumavis
Thomas Huang
Sneh Koul
Thomas Huang
pldespaigne
kumavis