Web browsers are ubiquitous, but how do they work? This book explains, building a basic but complete web browser, from networking to JavaScript, in a thousand lines of Python.

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Introduction

Part 1: Drawing Graphics

1. Downloading Web Pages
   URLs and HTTP requests
2. Drawing to the Screen
   Creating windows and drawing to a canvas
3. Formatting Text
   Word wrapping and line spacing

Part 2: Viewing Documents

4. Constructing a Document Tree
   Parsing and fixing HTML
5. Laying Out Pages
   Inline and block layout, plus the box model
6. Applying User Styles
   Parsing and applying CSS
7. Handling Buttons and Links
   Hyperlinks and browser chrome

Part 3: Running Applications

8. Sending Information to Servers
   Form submission and web servers
9. Running Interactive Scripts
   Changing the DOM and reacting to events
10. Keeping Data Private
    Cookies and logins, XSS and CSRF

Part 4: Modern Browsers

11. Saving Partial Layouts
    Two-phase layout and fast rendering
12. Adding Visual Effects
    Filters and transformations
13. Browser Rendering Architecture Concepts
    The Rendering Event Loop and Pipeline

Conclusion

Appendix

14. Glossary
15. Bibliography

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