54 lines
1.9 KiB
JavaScript
54 lines
1.9 KiB
JavaScript
import * as keys from './keys';
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import * as inputActions from '../actions/input';
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import * as operationActions from '../actions/operation';
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import backgroundReducers from '../reducers/background';
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import commandReducer from '../reducers/command';
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import inputReducers from '../reducers/input';
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import * as store from '../store'
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const emptyReducer = (state) => state;
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const emptyStore = store.createStore(emptyReducer, (e) => {
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console.error('Vim-Vixen:', e);
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});
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let inputState = inputReducers(undefined, {});
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const keyQueueChanged = (sender, prevState, state) => {
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if (state.keys.length === 0) {
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return Promise.resolve();
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}
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let prefix = keys.asKeymapChars(state.keys);
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let matched = Object.keys(keys.defaultKeymap).filter((keys) => {
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return keys.startsWith(prefix);
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});
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if (matched.length == 0) {
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return handleMessage(inputActions.clearKeys(), sender);
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} else if (matched.length > 1 || matched.length === 1 && prefix !== matched[0]) {
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return Promise.resolve();
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}
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let action = keys.defaultKeymap[matched];
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emptyStore.dispatch(operationActions.exec(action, sender), (e) => {
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console.error('Vim-Vixen:', e);
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});
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return handleMessage(inputActions.clearKeys(), sender).then(() => {
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return backgroundReducers(undefined, action, sender).then(() => {
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return browser.tabs.sendMessage(sender.tab.id, action);
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});
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});
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};
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const handleMessage = (action, sender) => {
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let nextInputState = inputReducers(inputState, action);
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if (JSON.stringify(nextInputState) !== JSON.stringify(inputState)) {
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let prevState = inputState;
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inputState = nextInputState;
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return keyQueueChanged(sender, prevState, inputState);
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}
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return backgroundReducers(undefined, action, sender).then(() => {
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return commandReducer(undefined, action, sender).then(() => {
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return browser.tabs.sendMessage(sender.tab.id, action);
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});
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});
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};
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browser.runtime.onMessage.addListener(handleMessage);
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