1 files changed, 178 insertions, 0 deletions
diff --git a/devtools/client/aboutdebugging/src/reducers/runtimes-state.js b/devtools/client/aboutdebugging/src/reducers/runtimes-state.js
new file mode 100644
index 0000000000..a32b458bd5
--- /dev/null
+++ b/devtools/client/aboutdebugging/src/reducers/runtimes-state.js
@@ -0,0 +1,178 @@
+/* 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 {
+  CONNECT_RUNTIME_CANCEL,
+  CONNECT_RUNTIME_FAILURE,
+  CONNECT_RUNTIME_NOT_RESPONDING,
+  CONNECT_RUNTIME_START,
+  CONNECT_RUNTIME_SUCCESS,
+  DISCONNECT_RUNTIME_SUCCESS,
+  RUNTIMES,
+  UPDATE_CONNECTION_PROMPT_SETTING_SUCCESS,
+  REMOTE_RUNTIMES_UPDATED,
+  SELECTED_RUNTIME_ID_UPDATED,
+  THIS_FIREFOX_RUNTIME_CREATED,
+} = require("devtools/client/aboutdebugging/src/constants");
+
+const {
+  findRuntimeById,
+} = require("devtools/client/aboutdebugging/src/modules/runtimes-state-helper");
+
+const {
+  remoteClientManager,
+} = require("devtools/client/shared/remote-debugging/remote-client-manager");
+
+// Map between known runtime types and nodes in the runtimes state.
+const TYPE_TO_RUNTIMES_KEY = {
+  [RUNTIMES.THIS_FIREFOX]: "thisFirefoxRuntimes",
+  [RUNTIMES.NETWORK]: "networkRuntimes",
+  [RUNTIMES.USB]: "usbRuntimes",
+};
+
+function RuntimesState() {
+  return {
+    networkRuntimes: [],
+    selectedRuntimeId: null,
+    // "This Firefox" runtimes is an array for consistency, but it should only contain one
+    // runtime. This runtime will be added after initializing the application via
+    // THIS_FIREFOX_RUNTIME_CREATED.
+    thisFirefoxRuntimes: [],
+    usbRuntimes: [],
+  };
+}
+
+/**
+ * Update the runtime matching the provided runtimeId with the content of updatedRuntime,
+ * and return the new state.
+ *
+ * @param  {String} runtimeId
+ *         The id of the runtime to update
+ * @param  {Object} updatedRuntime
+ *         Object used to update the runtime matching the idea using Object.assign.
+ * @param  {Object} state
+ *         Current runtimes state.
+ * @return {Object} The updated state
+ */
+function _updateRuntimeById(runtimeId, updatedRuntime, state) {
+  // Find the array of runtimes that contains the updated runtime.
+  const runtime = findRuntimeById(runtimeId, state);
+  const key = TYPE_TO_RUNTIMES_KEY[runtime.type];
+  const runtimesToUpdate = state[key];
+
+  // Update the runtime with the provided updatedRuntime.
+  const updatedRuntimes = runtimesToUpdate.map(r => {
+    if (r.id === runtimeId) {
+      return Object.assign({}, r, updatedRuntime);
+    }
+    return r;
+  });
+  return Object.assign({}, state, { [key]: updatedRuntimes });
+}
+
+function runtimesReducer(state = RuntimesState(), action) {
+  switch (action.type) {
+    case CONNECT_RUNTIME_START: {
+      const { id } = action;
+      const updatedState = {
+        isConnecting: true,
+        isConnectionFailed: false,
+        isConnectionNotResponding: false,
+        isConnectionTimeout: false,
+      };
+      return _updateRuntimeById(id, updatedState, state);
+    }
+
+    case CONNECT_RUNTIME_NOT_RESPONDING: {
+      const { id } = action;
+      return _updateRuntimeById(id, { isConnectionNotResponding: true }, state);
+    }
+
+    case CONNECT_RUNTIME_CANCEL: {
+      const { id } = action;
+      const updatedState = {
+        isConnecting: false,
+        isConnectionFailed: false,
+        isConnectionNotResponding: false,
+        isConnectionTimeout: true,
+      };
+      return _updateRuntimeById(id, updatedState, state);
+    }
+
+    case CONNECT_RUNTIME_SUCCESS: {
+      const { id, runtimeDetails, type } = action.runtime;
+
+      // Update the remoteClientManager with the connected runtime.
+      const client = runtimeDetails.clientWrapper.client;
+      const runtimeInfo = runtimeDetails.info;
+      remoteClientManager.setClient(id, type, client, runtimeInfo);
+
+      const updatedState = {
+        isConnecting: false,
+        isConnectionFailed: false,
+        isConnectionNotResponding: false,
+        isConnectionTimeout: false,
+        runtimeDetails,
+      };
+      return _updateRuntimeById(id, updatedState, state);
+    }
+
+    case CONNECT_RUNTIME_FAILURE: {
+      const { id } = action;
+      const updatedState = {
+        isConnecting: false,
+        isConnectionFailed: true,
+        isConnectionNotResponding: false,
+        isConnectionTimeout: false,
+      };
+      return _updateRuntimeById(id, updatedState, state);
+    }
+
+    case DISCONNECT_RUNTIME_SUCCESS: {
+      const { id, type } = action.runtime;
+      remoteClientManager.removeClient(id, type);
+      return _updateRuntimeById(id, { runtimeDetails: null }, state);
+    }
+
+    case SELECTED_RUNTIME_ID_UPDATED: {
+      const selectedRuntimeId = action.runtimeId || null;
+      return Object.assign({}, state, { selectedRuntimeId });
+    }
+
+    case UPDATE_CONNECTION_PROMPT_SETTING_SUCCESS: {
+      const { connectionPromptEnabled } = action;
+      const { id: runtimeId } = action.runtime;
+      const runtime = findRuntimeById(runtimeId, state);
+      const runtimeDetails = Object.assign({}, runtime.runtimeDetails, {
+        connectionPromptEnabled,
+      });
+      return _updateRuntimeById(runtimeId, { runtimeDetails }, state);
+    }
+
+    case REMOTE_RUNTIMES_UPDATED: {
+      const { runtimes, runtimeType } = action;
+      const key = TYPE_TO_RUNTIMES_KEY[runtimeType];
+      return Object.assign({}, state, {
+        [key]: runtimes,
+      });
+    }
+
+    case THIS_FIREFOX_RUNTIME_CREATED: {
+      const { runtime } = action;
+      return Object.assign({}, state, {
+        thisFirefoxRuntimes: [runtime],
+      });
+    }
+
+    default:
+      return state;
+  }
+}
+
+module.exports = {
+  RuntimesState,
+  runtimesReducer,
+};