зеркало из https://github.com/mozilla/gecko-dev.git
53 строки
1.7 KiB
JavaScript
53 строки
1.7 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const {actionCreators: ac, actionTypes: at} = ChromeUtils.import("resource://activity-stream/common/Actions.jsm", {});
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/**
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* NewTabInit - A placeholder for now. This will send a copy of the state to all
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* newly opened tabs.
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*/
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this.NewTabInit = class NewTabInit {
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constructor() {
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this._repliedEarlyTabs = new Map();
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}
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reply(target) {
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// Skip this reply if we already replied to an early tab
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if (this._repliedEarlyTabs.get(target)) {
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return;
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}
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const action = {type: at.NEW_TAB_INITIAL_STATE, data: this.store.getState()};
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this.store.dispatch(ac.AlsoToOneContent(action, target));
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// Remember that this early tab has already gotten a rehydration response in
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// case it thought we lost its initial REQUEST and asked again
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if (this._repliedEarlyTabs.has(target)) {
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this._repliedEarlyTabs.set(target, true);
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}
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}
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onAction(action) {
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switch (action.type) {
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case at.NEW_TAB_STATE_REQUEST:
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this.reply(action.meta.fromTarget);
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break;
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case at.NEW_TAB_INIT:
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// Initialize data for early tabs that might REQUEST twice
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if (action.data.simulated) {
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this._repliedEarlyTabs.set(action.data.portID, false);
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}
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break;
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case at.NEW_TAB_UNLOAD:
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// Clean up for any tab (no-op if not an early tab)
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this._repliedEarlyTabs.delete(action.meta.fromTarget);
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break;
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}
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}
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};
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const EXPORTED_SYMBOLS = ["NewTabInit"];
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