definitions fixed

data/virtual-array/virtual-array.d.ts

@@ -0,0 +1,88 @@
+/**
+ * Contains the VirtualArray class, which is an advanced array like class that helps loading items on demand.
+ */
+declare module "data/virtual-array" {
+    import observable = require("data/observable");
+    import observableArray = require("data/observable-array");
+
+    /**
+     * Known event names.
+     */
+    module knownEvents {
+        export var itemsLoading: string;
+        export var change: string;
+    }
+
+    /**
+     * Provides event args for "changed" event.
+     */
+    export interface ChangedData<T> extends observableArray.ChangedData<T> {
+        //
+    }
+
+    /**
+     * Change types (Add, Delete, Update, Splice).
+     */
+    export class ChangeType extends observableArray.ChangeType {
+        //
+    }
+
+    /**
+     * Advanced array like class that helps loading items on demand.
+     */
+    export class VirtualArray<T> extends observable.Observable {
+        constructor(arrayLength?: number);
+
+        /**
+         * Gets or sets length for the virtual array.
+         */
+        length: number;
+
+        /**
+         * Gets or sets load size for the virtual array.
+         */
+        loadSize: number;
+
+        /**
+         * Returns item at specified index.
+         */
+        getItem(index: number): T;
+
+        /**
+         * Sets item at specified index.
+         */
+        setItem(index: number, value: T): void;
+
+        /**
+         * Loads items from an array starting at index.
+         */
+        load(index: number, items: T[]): void;
+
+        on(event: string, callback: (data: observable.EventData) => void);
+
+        /**
+         * Raised when still not loaded items are requested.
+         */
+        on(event: "itemsLoading", callback: (args: ItemsLoading) => void);
+
+        /**
+         * Raised when a change occurs.
+         */
+        on(event: "change", callback: (args: ChangedData<T>) => void);
+    }
+
+    /**
+     * Event args for "itemsLoading" event.
+     */
+    export interface ItemsLoading extends observable.EventData {
+        /**
+         * Start index.
+         */
+        index: number;
+
+        /**
+         * Number of items to load.
+         */
+        count: number;
+    }
+}