Facebook Desktop App

Overview

The Facebook app provides users with access to their Facebook profiles and the ability to modify them. Leveraging the Facebook API, the app offers a seamless experience, incorporating advanced features such as multithreading and various design patterns to ensure optimal performance and scalability.

Design Patterns Utilized

1. Singleton

• Reason for Usage: The Singleton pattern ensures that there is only one instance of the loggedInUser across multiple forms within the application. This is crucial to maintain a consistent user state.
• Implementation: Double Check Locking - Used when performing login or accessing the loggedInUser in FormMain. This ensures that no more than one instance of loggedInUser exists at any given time.

2. Strategy

• Reason for Usage: The Strategy pattern allows for flexibility in changing the maximum value of graphs in the future without modifying the existing code structure.
• Implementation: Class Structure - DiagramCreator class contains a composition of PostChartTopValue. The MaxPostChartValue class implements PostChartTopValue to determine the maximum value of the graph.

3. Observer

• Reason for Usage: The Observer pattern is implemented to notify multiple components in the system when a user posts a new status, facilitating better communication and updates.
• Implementation: Event Handling - The postManager class includes a public event that all interested components can subscribe to for updates on new posts.

4. Facade

• Reason for Usage: The Facade pattern simplifies the interaction with the FacebookUser data by presenting only the relevant information to the user in the feed, improving the user experience.
• Implementation: Facade Class - FormFeedInitializerFacade serves as a facade for FormFeed, providing the necessary data in the expected format.

Features

• Download Images from User Albums: Allows users to download images from their photo albums to their computer.
• Graphical Representation of User Activity: Displays the number of statuses and photos uploaded by the user each month in a graphical format.

Development Context

The Facebook app is built using C# and WinForms and was created as part of a design pattern course at the Academic College of Tel Aviv Yaffo.

Installation

To install the Facebook app, follow these steps:

1. Clone the repository from GitHub.
2. Open the solution file in Visual Studio.
3. Install the required packages.
4. Build the solution and run the app.

Usage

To use the Facebook app, follow these steps:

1. Log in to the app using your Facebook credentials.
2. Navigate to the desired feature from the app menu.
3. Enjoy the features and have fun!