1 files changed, 155 insertions, 0 deletions
diff --git a/devtools/client/aboutdebugging/src/reducers/debug-targets-state.js b/devtools/client/aboutdebugging/src/reducers/debug-targets-state.js
new file mode 100644
index 0000000000..8ee0473e3c
--- /dev/null
+++ b/devtools/client/aboutdebugging/src/reducers/debug-targets-state.js
@@ -0,0 +1,155 @@
+/* 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 {
+  EXTENSION_BGSCRIPT_STATUS_UPDATED,
+  REQUEST_EXTENSIONS_SUCCESS,
+  REQUEST_PROCESSES_SUCCESS,
+  REQUEST_TABS_SUCCESS,
+  REQUEST_WORKERS_SUCCESS,
+  TEMPORARY_EXTENSION_RELOAD_FAILURE,
+  TEMPORARY_EXTENSION_RELOAD_START,
+  TERMINATE_EXTENSION_BGSCRIPT_FAILURE,
+  TERMINATE_EXTENSION_BGSCRIPT_START,
+  UNWATCH_RUNTIME_SUCCESS,
+} = require("resource://devtools/client/aboutdebugging/src/constants.js");
+
+function DebugTargetsState() {
+  return {
+    installedExtensions: [],
+    otherWorkers: [],
+    processes: [],
+    serviceWorkers: [],
+    sharedWorkers: [],
+    tabs: [],
+    temporaryExtensions: [],
+  };
+}
+
+function updateExtensionDetails(extensions, id, updatedDetails) {
+  // extensions is meant to be either state.installExtensions or state.temporaryExtensions.
+  return extensions.map(extension => {
+    if (extension.id === id) {
+      extension = Object.assign({}, extension);
+
+      extension.details = Object.assign({}, extension.details, updatedDetails);
+    }
+    return extension;
+  });
+}
+
+function updateTemporaryExtension(state, id, updatedDetails) {
+  return updateExtensionDetails(state.temporaryExtensions, id, updatedDetails);
+}
+
+function updateInstalledExtension(state, id, updatedDetails) {
+  return updateExtensionDetails(state.installedExtensions, id, updatedDetails);
+}
+
+function updateExtension(state, id, updatedDetails) {
+  return {
+    installedExtensions: updateInstalledExtension(state, id, updatedDetails),
+    temporaryExtensions: updateTemporaryExtension(state, id, updatedDetails),
+  };
+}
+
+function debugTargetsReducer(state = DebugTargetsState(), action) {
+  switch (action.type) {
+    case UNWATCH_RUNTIME_SUCCESS: {
+      return DebugTargetsState();
+    }
+    case REQUEST_EXTENSIONS_SUCCESS: {
+      const { installedExtensions, temporaryExtensions } = action;
+      return Object.assign({}, state, {
+        installedExtensions,
+        temporaryExtensions,
+      });
+    }
+    case REQUEST_PROCESSES_SUCCESS: {
+      const { processes } = action;
+      return Object.assign({}, state, { processes });
+    }
+    case REQUEST_TABS_SUCCESS: {
+      const { tabs } = action;
+      return Object.assign({}, state, { tabs });
+    }
+    case REQUEST_WORKERS_SUCCESS: {
+      const { otherWorkers, serviceWorkers, sharedWorkers } = action;
+      return Object.assign({}, state, {
+        otherWorkers,
+        serviceWorkers,
+        sharedWorkers,
+      });
+    }
+    case TEMPORARY_EXTENSION_RELOAD_FAILURE: {
+      const { id, error } = action;
+      const temporaryExtensions = updateTemporaryExtension(state, id, {
+        reloadError: error.message,
+      });
+      return Object.assign({}, state, { temporaryExtensions });
+    }
+    case TEMPORARY_EXTENSION_RELOAD_START: {
+      const { id } = action;
+      const temporaryExtensions = updateTemporaryExtension(state, id, {
+        reloadError: null,
+      });
+      return Object.assign({}, state, { temporaryExtensions });
+    }
+    case TERMINATE_EXTENSION_BGSCRIPT_START: {
+      const { id } = action;
+      const { installedExtensions, temporaryExtensions } = updateExtension(
+        state,
+        id,
+        {
+          // Clear the last error if one was still set.
+          lastTerminateBackgroundScriptError: null,
+        }
+      );
+      return Object.assign({}, state, {
+        installedExtensions,
+        temporaryExtensions,
+      });
+    }
+    case TERMINATE_EXTENSION_BGSCRIPT_FAILURE: {
+      const { id, error } = action;
+      const { installedExtensions, temporaryExtensions } = updateExtension(
+        state,
+        id,
+        {
+          lastTerminateBackgroundScriptError: error.message,
+        }
+      );
+      return Object.assign({}, state, {
+        installedExtensions,
+        temporaryExtensions,
+      });
+    }
+    case EXTENSION_BGSCRIPT_STATUS_UPDATED: {
+      const { id, backgroundScriptStatus } = action;
+      const { installedExtensions, temporaryExtensions } = updateExtension(
+        state,
+        id,
+        {
+          backgroundScriptStatus,
+          // Clear the last error if one was still set.
+          lastTerminateBackgroundScriptError: null,
+        }
+      );
+      return Object.assign({}, state, {
+        installedExtensions,
+        temporaryExtensions,
+      });
+    }
+
+    default:
+      return state;
+  }
+}
+
+module.exports = {
+  DebugTargetsState,
+  debugTargetsReducer,
+};