1 files changed, 69 insertions, 0 deletions
diff --git a/devtools/client/memory/actions/view.js b/devtools/client/memory/actions/view.js
new file mode 100644
index 0000000000..af1bc7b21a
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+++ b/devtools/client/memory/actions/view.js
@@ -0,0 +1,69 @@
+/* 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 } = require("resource://devtools/shared/DevToolsUtils.js");
+const { actions } = require("resource://devtools/client/memory/constants.js");
+const {
+  findSelectedSnapshot,
+} = require("resource://devtools/client/memory/utils.js");
+const refresh = require("resource://devtools/client/memory/actions/refresh.js");
+
+/**
+ * Change the currently selected view.
+ *
+ * @param {viewState} view
+ */
+const changeView = (exports.changeView = function (view) {
+  return function ({ dispatch, getState }) {
+    dispatch({
+      type: actions.CHANGE_VIEW,
+      newViewState: view,
+      oldDiffing: getState().diffing,
+      oldSelected: findSelectedSnapshot(getState()),
+    });
+  };
+});
+
+/**
+ * Given that we are in the INDIVIDUALS view state, go back to the state we were
+ * in before.
+ */
+const popView = (exports.popView = function () {
+  return function ({ dispatch, getState }) {
+    const { previous } = getState().view;
+    assert(previous);
+    dispatch({
+      type: actions.POP_VIEW,
+      previousView: previous,
+    });
+  };
+});
+
+/**
+ * Change the currently selected view and ensure all our data is up to date from
+ * the heap worker.
+ *
+ * @param {viewState} view
+ * @param {HeapAnalysesClient} heapWorker
+ */
+exports.changeViewAndRefresh = function (view, heapWorker) {
+  return async function ({ dispatch, getState }) {
+    dispatch(changeView(view));
+    await dispatch(refresh.refresh(heapWorker));
+  };
+};
+
+/**
+ * Given that we are in the INDIVIDUALS view state, go back to the state we were
+ * previously in and refresh our data.
+ *
+ * @param {HeapAnalysesClient} heapWorker
+ */
+exports.popViewAndRefresh = function (heapWorker) {
+  return async function ({ dispatch, getState }) {
+    dispatch(popView());
+    await dispatch(refresh.refresh(heapWorker));
+  };
+};