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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const createStore = require("resource://devtools/client/shared/redux/create-store.js");
const {
combineReducers,
} = require("resource://devtools/client/shared/vendor/redux.js");
// Reducers which need to be available immediately when the Inspector loads.
const reducers = {
// Provide a dummy default reducer.
// Redux throws an error when calling combineReducers() with an empty object.
default: (state = {}) => state,
};
function createReducer(laterReducers = {}) {
return combineReducers({
...reducers,
...laterReducers,
});
}
module.exports = inspector => {
const store = createStore(createReducer(), {
// Enable log middleware in tests
shouldLog: true,
// Pass the client inspector instance so thunks (dispatched functions)
// can access it from their arguments
thunkOptions: { inspector },
});
// Map of registered reducers loaded on-demand.
store.laterReducers = {};
/**
* Augment the current Redux store with a slice reducer.
* Call this method to add reducers on-demand after the initial store creation.
*
* @param {String} key
* Slice name.
* @param {Function} reducer
* Slice reducer function.
*/
store.injectReducer = (key, reducer) => {
if (store.laterReducers[key]) {
console.log(`Already loaded reducer: ${key}`);
return;
}
store.laterReducers[key] = reducer;
store.replaceReducer(createReducer(store.laterReducers));
};
return store;
};
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