Hawaii taxes non-residents only on Hawaii-source income. See this reference for Hawaii's definition of Hawaii-source income:
https://files.hawaii.gov/tax/legal/taxfacts/tf97-4.pdf
As @Hal_Al pointed out, you may claim a credit on you CA resident tax return for taxes paid to HI on the portion of your income that is taxed by both states.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
