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38 lines
1.9 KiB
Plaintext
38 lines
1.9 KiB
Plaintext
This directory provides Mojo API definitions for CEF.
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To add a new Mojo API:
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<api> is the name of the API definition (e.g. 'streams_private').
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<class> is the name of the class implementation (e.g. 'StreamsPrivateAPI').
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1. Add libcef/common/extensions/api/<api>.idl file which defines the API.
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2. Add <api>.idl to the 'schema_files' list in
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libcef/common/extensions/api/schemas.gypi. Serialization code will be
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generated based on this list in step 5.
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3. Add an entry to libcef/common/extensions/api/_api_features.json if
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necessary [1].
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4. Add libcef/browser/extensions/api/<api>/<api>_api.[h|cc] class implementation
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files and associated entries to the 'libcef_static' target in cef.gyp.
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5. Run the cef_create_projects script and build to generate the
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cef/libcef/common/extensions/api/<api>.h file and other serialization code
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required by the extensions system.
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6. Call `<class>::GetInstance();` or `<class>Factory::GetFactoryInstance();` [2]
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from EnsureBrowserContextKeyedServiceFactoriesBuilt in
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libcef/browser/extensions/browser_context_keyed_service_factories.cc.
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7. Call `DependsOn(<class>Factory::GetInstance());` from
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CefExtensionSystemFactory::CefExtensionSystemFactory in
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libcef/browser/extensions/extension_system_factory.cc if necessary [2].
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See https://www.chromium.org/developers/design-documents/mojo for more
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information.
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[1] A feature can optionally express requirements for where it can be accessed.
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See the _api_features.json file for additional details.
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[2] Some Mojo APIs use singleton Factory objects that create a one-to-one
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relationship between a service and a BrowserContext. This is used primarily
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to control shutdown/destruction order and implementors must explicitly state
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which services are depended on. See comments in
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components/keyed_service/content/browser_context_keyed_service_factory.h
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for additional details.
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