chore(bidi): reimplement RawKeyboard.sendText()

[hbenl]

Bidi doesn't have a protocol method corresponding to CDP's Input.insertText, so this was emulated using keyboard actions. However, this emits key* events that are not expected for Keyboard.insertText(), breaking several tests.
This implementation tries to emulate CDP's Input.insertText behavior more closely.

Fixes the following tests:

• page/page-fill.spec.ts:
  • "should not double-fill in contenteditable with beforeinput handler in Firefox"
• tests/page/page-keyboard.spec.ts:
  • "should send a character with insertText"
  • "insertText should only emit input event"

[yury-s]

Looks good except for putting Bidi-specific script into a separate extension.

This implementation tries to emulate CDP's Input.insertText behavior more closely.

Are there any plans to have such method in Bidi protocol?

[yury-s]

Since this is only used in Bidi, it should go in its own script/module. You can call browserContext.extendInjectedScript() to add extra logic.

[github-actions]

Test results for "MCP"

2 failed
❌ [firefox] › mcp/cli-killall.spec.ts:42 › kill-all kills filtered dashboard pid @mcp-ubuntu-latest-firefox
❌ [firefox] › mcp/annotate.spec.ts:230 › should capture annotations via show --annotate @mcp-macos-latest-firefox

7707 passed, 1235 skipped

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Merge workflow run.

[github-actions]

Test results for "tests 1"

6 flaky

⚠️ [chromium-library] › library/chromium/chromium.spec.ts:434 › should produce network events, routing, and annotations for Service Worker (advanced) `@frozen-time-library-chromium-linux`
⚠️ [chromium-library] › library/tracing.spec.ts:429 › should produce screencast frames fit `@frozen-time-library-chromium-linux`
⚠️ [chromium-library] › library/beforeunload.spec.ts:130 › should support dismissing the dialog multiple times `@chromium-ubuntu-22.04-arm-node20`
⚠️ [chromium-library] › library/chromium/oopif.spec.ts:150 › should take screenshot `@chromium-ubuntu-22.04-node24`
⚠️ [chromium-library] › library/video.spec.ts:680 › screencast › should capture full viewport on hidpi `@chromium-ubuntu-22.04-node22`
⚠️ [firefox-page] › page/page-emulate-media.spec.ts:144 › should keep reduced motion and color emulation after reload `@firefox-ubuntu-22.04-node20`

49498 passed, 1164 skipped

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Merge workflow run.

[hbenl]

@yury-s I tried using browserContext.extendInjectedScript() but it breaks the test "should avoid side effects upon disconnect". Even without this PR, after adding

promises.push(this.extendInjectedScript(`module.exports = { default: () => class C {} };`));

to BidiBrowserContext.initialize() or to CRBrowserContext.initialize() (verifying that this is not a Firefox/Bidi specific issue), the test fails.

[yury-s]

can we avoid adding this to the main script? packages/injected/src/recorder/pollingRecorder.ts adds a rich API and doesn't leak any of it into the main InjectedScript, let's employ the same approach here.

[yury-s]

@yury-s I tried using browserContext.extendInjectedScript() but it breaks the test "should avoid side effects upon disconnect". Even without this PR, after adding

promises.push(this.extendInjectedScript(`module.exports = { default: () => class C {} };`));

to BidiBrowserContext.initialize() or to CRBrowserContext.initialize() (verifying that this is not a Firefox/Bidi specific issue), the test fails.

Hmm, doesn't fail for me when I run the test with this change (in chromium). Are you sure there are no other changes?