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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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Add m-esr52 at 52.6.0
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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 { assert, immutableUpdate } = require("devtools/shared/DevToolsUtils");
+const { actions, individualsState, viewState } = require("../constants");
+
+const handlers = Object.create(null);
+
+handlers[actions.POP_VIEW] = function (_state, _action) {
+ return null;
+};
+
+handlers[actions.CHANGE_VIEW] = function (individuals, { newViewState }) {
+ if (newViewState === viewState.INDIVIDUALS) {
+ assert(!individuals,
+ "Should not switch to individuals view when already in individuals view");
+ return Object.freeze({
+ state: individualsState.COMPUTING_DOMINATOR_TREE,
+ });
+ }
+
+ return null;
+};
+
+handlers[actions.FOCUS_INDIVIDUAL] = function (individuals, { node }) {
+ assert(individuals, "Should have individuals");
+ return immutableUpdate(individuals, { focused: node });
+};
+
+handlers[actions.FETCH_INDIVIDUALS_START] = function (individuals, action) {
+ assert(individuals, "Should have individuals");
+ return Object.freeze({
+ state: individualsState.FETCHING,
+ focused: individuals.focused,
+ });
+};
+
+handlers[actions.FETCH_INDIVIDUALS_END] = function (individuals, action) {
+ assert(individuals, "Should have individuals");
+ assert(!individuals.nodes, "Should not have nodes");
+ assert(individuals.state === individualsState.FETCHING,
+ "Should only end fetching individuals after starting.");
+
+ const focused = individuals.focused
+ ? action.nodes.find(n => n.nodeId === individuals.focused.nodeId)
+ : null;
+
+ return Object.freeze({
+ state: individualsState.FETCHED,
+ nodes: action.nodes,
+ id: action.id,
+ censusBreakdown: action.censusBreakdown,
+ indices: action.indices,
+ labelDisplay: action.labelDisplay,
+ focused,
+ dominatorTree: action.dominatorTree,
+ });
+};
+
+handlers[actions.INDIVIDUALS_ERROR] = function (_, { error }) {
+ return Object.freeze({
+ error,
+ nodes: null,
+ state: individualsState.ERROR,
+ });
+};
+
+module.exports = function (individuals = null, action) {
+ const handler = handlers[action.type];
+ return handler ? handler(individuals, action) : individuals;
+};