1 files changed, 246 insertions, 0 deletions
diff --git a/devtools/client/projecteditor/lib/project.js b/devtools/client/projecteditor/lib/project.js
new file mode 100644
index 000000000..8e0a8802d
--- /dev/null
+++ b/devtools/client/projecteditor/lib/project.js
@@ -0,0 +1,246 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* 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/. */
+
+const { Cu } = require("chrome");
+const { Class } = require("sdk/core/heritage");
+const { EventTarget } = require("sdk/event/target");
+const { emit } = require("sdk/event/core");
+const { scope, on, forget } = require("devtools/client/projecteditor/lib/helpers/event");
+const prefs = require("sdk/preferences/service");
+const { LocalStore } = require("devtools/client/projecteditor/lib/stores/local");
+const { OS } = Cu.import("resource://gre/modules/osfile.jsm", {});
+const { Task } = require("devtools/shared/task");
+const promise = require("promise");
+const { TextEncoder, TextDecoder } = require("sdk/io/buffer");
+const url = require("sdk/url");
+
+const gDecoder = new TextDecoder();
+const gEncoder = new TextEncoder();
+
+/**
+ * A Project keeps track of the opened folders using LocalStore
+ * objects.  Resources are generally requested from the project,
+ * even though the Store is actually keeping track of them.
+ *
+ *
+ * This object emits the following events:
+ *   - "refresh-complete": After all stores have been refreshed from disk.
+ *   - "store-added": When a store has been added to the project.
+ *   - "store-removed": When a store has been removed from the project.
+ *   - "resource-added": When a resource has been added to one of the stores.
+ *   - "resource-removed": When a resource has been removed from one of the stores.
+ */
+var Project = Class({
+  extends: EventTarget,
+
+  /**
+   * Intialize the Project.
+   *
+   * @param Object options
+   *               Options to be passed into Project.load function
+   */
+  initialize: function (options) {
+    this.localStores = new Map();
+
+    this.load(options);
+  },
+
+  destroy: function () {
+    // We are removing the store because the project never gets persisted.
+    // There may need to be separate destroy functionality that doesn't remove
+    // from project if this is saved to DB.
+    this.removeAllStores();
+  },
+
+  toString: function () {
+    return "[Project] " + this.name;
+  },
+
+  /**
+   * Load a project given metadata about it.
+   *
+   * @param Object options
+   *               Information about the project, containing:
+   *                id: An ID (currently unused, but could be used for saving)
+   *                name: The display name of the project
+   *                directories: An array of path strings to load
+   */
+  load: function (options) {
+    this.id = options.id;
+    this.name = options.name || "Untitled";
+
+    let paths = new Set(options.directories.map(name => OS.Path.normalize(name)));
+
+    for (let [path, store] of this.localStores) {
+      if (!paths.has(path)) {
+        this.removePath(path);
+      }
+    }
+
+    for (let path of paths) {
+      this.addPath(path);
+    }
+  },
+
+  /**
+   * Refresh all project stores from disk
+   *
+   * @returns Promise
+   *          A promise that resolves when everything has been refreshed.
+   */
+  refresh: function () {
+    return Task.spawn(function* () {
+      for (let [path, store] of this.localStores) {
+        yield store.refresh();
+      }
+      emit(this, "refresh-complete");
+    }.bind(this));
+  },
+
+
+  /**
+   * Fetch a resource from the backing storage system for the store.
+   *
+   * @param string path
+   *               The path to fetch
+   * @param Object options
+   *               "create": bool indicating whether to create a file if it does not exist.
+   * @returns Promise
+   *          A promise that resolves with the Resource.
+   */
+  resourceFor: function (path, options) {
+    let store = this.storeContaining(path);
+    return store.resourceFor(path, options);
+  },
+
+  /**
+   * Get every resource used inside of the project.
+   *
+   * @returns Array<Resource>
+   *          A list of all Resources in all Stores.
+   */
+  allResources: function () {
+    let resources = [];
+    for (let store of this.allStores()) {
+      resources = resources.concat(store.allResources());
+    }
+    return resources;
+  },
+
+  /**
+   * Get every Path used inside of the project.
+   *
+   * @returns generator-iterator<Store>
+   *          A list of all Stores
+   */
+  allStores: function* () {
+    for (let [path, store] of this.localStores) {
+      yield store;
+    }
+  },
+
+  /**
+   * Get every file path used inside of the project.
+   *
+   * @returns Array<string>
+   *          A list of all file paths
+   */
+  allPaths: function () {
+    return [...this.localStores.keys()];
+  },
+
+  /**
+   * Get the store that contains a path.
+   *
+   * @returns Store
+   *          The store, if any.  Will return null if no store
+   *          contains the given path.
+   */
+  storeContaining: function (path) {
+    let containingStore = null;
+    for (let store of this.allStores()) {
+      if (store.contains(path)) {
+        // With nested projects, the final containing store will be returned.
+        containingStore = store;
+      }
+    }
+    return containingStore;
+  },
+
+  /**
+   * Add a store at the current path.  If a store already exists
+   * for this path, then return it.
+   *
+   * @param string path
+   * @returns LocalStore
+   */
+  addPath: function (path) {
+    if (!this.localStores.has(path)) {
+      this.addLocalStore(new LocalStore(path));
+    }
+    return this.localStores.get(path);
+  },
+
+  /**
+   * Remove a store for a given path.
+   *
+   * @param string path
+   */
+  removePath: function (path) {
+    this.removeLocalStore(this.localStores.get(path));
+  },
+
+
+  /**
+   * Add the given Store to the project.
+   * Fires a 'store-added' event on the project.
+   *
+   * @param Store store
+   */
+  addLocalStore: function (store) {
+    store.canPair = true;
+    this.localStores.set(store.path, store);
+
+    // Originally StoreCollection.addStore
+    on(this, store, "resource-added", (resource) => {
+      emit(this, "resource-added", resource);
+    });
+    on(this, store, "resource-removed", (resource) => {
+      emit(this, "resource-removed", resource);
+    });
+
+    emit(this, "store-added", store);
+  },
+
+
+  /**
+   * Remove all of the Stores belonging to the project.
+   */
+  removeAllStores: function () {
+    for (let store of this.allStores()) {
+      this.removeLocalStore(store);
+    }
+  },
+
+  /**
+   * Remove the given Store from the project.
+   * Fires a 'store-removed' event on the project.
+   *
+   * @param Store store
+   */
+  removeLocalStore: function (store) {
+    // XXX: tree selection should be reset if active element is affected by
+    // the store being removed
+    if (store) {
+      this.localStores.delete(store.path);
+      forget(this, store);
+      emit(this, "store-removed", store);
+      store.destroy();
+    }
+  }
+});
+
+exports.Project = Project;