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import * as inputActions from 'content/actions/input';
import * as operationActions from 'content/actions/operation';
import operations from 'shared/operations';
import * as keyUtils from 'shared/utils/keys';
const mapStartsWith = (mapping, keys) => {
if (mapping.length < keys.length) {
return false;
}
for (let i = 0; i < keys.length; ++i) {
if (!keyUtils.equals(mapping[i], keys[i])) {
return false;
}
}
return true;
};
export default class KeymapperComponent {
constructor(store) {
this.store = store;
}
key(key) {
this.store.dispatch(inputActions.keyPress(key));
let state = this.store.getState();
let input = state.input;
let keymaps = new Map(state.setting.keymaps);
let matched = Array.from(keymaps.keys()).filter((mapping) => {
return mapStartsWith(mapping, input.keys);
});
if (!state.addon.enabled) {
// available keymaps are only ADDON_ENABLE and ADDON_TOGGLE_ENABLED if
// the addon disabled
matched = matched.filter((keys) => {
let type = keymaps.get(keys).type;
return type === operations.ADDON_ENABLE ||
type === operations.ADDON_TOGGLE_ENABLED;
});
}
if (matched.length === 0) {
this.store.dispatch(inputActions.clearKeys());
return false;
} else if (matched.length > 1 ||
matched.length === 1 && input.keys.length < matched[0].length) {
return true;
}
let operation = keymaps.get(matched[0]);
this.store.dispatch(operationActions.exec(operation));
this.store.dispatch(inputActions.clearKeys());
return true;
}
}
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