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authorBrandon Millman <brandon.millman@gmail.com>2018-11-07 14:33:58 +0800
committerBrandon Millman <brandon.millman@gmail.com>2018-11-08 06:25:23 +0800
commit28df5bfd94e817cb90689059d7255495ca6522ad (patch)
treef8368784de47d8fb73ebc6792100e2870ea0e815 /packages/instant/src/util
parentdfbf10c94bfbbdbca353531c5cae6707e05981f0 (diff)
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feat(instant): add Account to the ProviderState
Diffstat (limited to 'packages/instant/src/util')
-rw-r--r--packages/instant/src/util/provider_state_factory.ts69
1 files changed, 69 insertions, 0 deletions
diff --git a/packages/instant/src/util/provider_state_factory.ts b/packages/instant/src/util/provider_state_factory.ts
new file mode 100644
index 000000000..18b188d89
--- /dev/null
+++ b/packages/instant/src/util/provider_state_factory.ts
@@ -0,0 +1,69 @@
+import { Web3Wrapper } from '@0x/web3-wrapper';
+import { Provider } from 'ethereum-types';
+import * as _ from 'lodash';
+
+import { AccountNotReady, AccountState, Maybe, Network, OrderSource, ProviderState } from '../types';
+
+import { assetBuyerFactory } from './asset_buyer_factory';
+import { providerFactory } from './provider_factory';
+
+const LOADING_ACCOUNT: AccountNotReady = {
+ state: AccountState.Loading,
+};
+const NO_ACCOUNT: AccountNotReady = {
+ state: AccountState.None,
+};
+
+export const providerStateFactory = {
+ getInitialProviderState: (orderSource: OrderSource, network: Network, provider?: Provider): ProviderState => {
+ if (!_.isUndefined(provider)) {
+ return providerStateFactory.getInitialProviderStateFromProvider(orderSource, network, provider);
+ }
+ const providerStateFromWindowIfExits = providerStateFactory.getInitialProviderStateFromWindowIfExists(
+ orderSource,
+ network,
+ );
+ if (providerStateFromWindowIfExits) {
+ return providerStateFromWindowIfExits;
+ } else {
+ return providerStateFactory.getInitialProviderStateFallback(orderSource, network);
+ }
+ },
+ getInitialProviderStateFromProvider: (
+ orderSource: OrderSource,
+ network: Network,
+ provider: Provider,
+ ): ProviderState => {
+ const providerState: ProviderState = {
+ provider,
+ web3Wrapper: new Web3Wrapper(provider),
+ assetBuyer: assetBuyerFactory.getAssetBuyer(provider, orderSource, network),
+ account: LOADING_ACCOUNT,
+ };
+ return providerState;
+ },
+ getInitialProviderStateFromWindowIfExists: (orderSource: OrderSource, network: Network): Maybe<ProviderState> => {
+ const injectedProviderIfExists = providerFactory.getInjectedProviderIfExists();
+ if (!_.isUndefined(injectedProviderIfExists)) {
+ const providerState: ProviderState = {
+ provider: injectedProviderIfExists,
+ web3Wrapper: new Web3Wrapper(injectedProviderIfExists),
+ assetBuyer: assetBuyerFactory.getAssetBuyer(injectedProviderIfExists, orderSource, network),
+ account: LOADING_ACCOUNT,
+ };
+ return providerState;
+ } else {
+ return undefined;
+ }
+ },
+ getInitialProviderStateFallback: (orderSource: OrderSource, network: Network): ProviderState => {
+ const provider = providerFactory.getFallbackNoSigningProvider(network);
+ const providerState: ProviderState = {
+ provider,
+ web3Wrapper: new Web3Wrapper(provider),
+ assetBuyer: assetBuyerFactory.getAssetBuyer(provider, orderSource, network),
+ account: NO_ACCOUNT,
+ };
+ return providerState;
+ },
+};