Module context 

Browser Context Management

Browser contexts are isolated environments within a browser, similar to incognito windows. Each context has its own cookies, cache, localStorage, and other browser storage.

Features

• Isolation: Each context is completely isolated from others
• Cookie Management: Add, get, and clear cookies with BrowserContext::add_cookies, BrowserContext::cookies, BrowserContext::clear_cookies
• Storage State: Save and restore browser state (cookies, localStorage) for authentication
• Permissions: Grant permissions like geolocation, camera, microphone
• Geolocation: Mock browser location with BrowserContext::set_geolocation
• HTTP Credentials: Configure basic/digest authentication
• Extra Headers: Add headers to all requests in the context
• Offline Mode: Simulate network offline conditions
• Event Handling: Listen for page creation and context close events
• Init Scripts: Run scripts before every page load
• Custom Test ID: Configure which attribute is used for test IDs
• Network Routing: Intercept and mock requests at the context level
• HAR Recording: Record network traffic for debugging
• Tracing: Record traces for debugging

Quick Start

use viewpoint_core::{Browser, BrowserContext, Permission};

let browser = Browser::launch().headless(true).launch().await?;

// Create a simple context
let context = browser.new_context().await?;

// Create a context with options
let context = browser.new_context_builder()
    .viewport(1920, 1080)
    .geolocation(37.7749, -122.4194)
    .permissions(vec![Permission::Geolocation])
    .build()
    .await?;

// Create a page in the context
let page = context.new_page().await?;
page.goto("https://example.com").goto().await?;

Cookie Management

use viewpoint_core::{Browser, Cookie, SameSite};

// Add cookies
context.add_cookies(vec![
    Cookie {
        name: "session".to_string(),
        value: "abc123".to_string(),
        domain: Some(".example.com".to_string()),
        path: Some("/".to_string()),
        expires: None,
        http_only: Some(true),
        secure: Some(true),
        same_site: Some(SameSite::Lax),
    }
]).await?;

// Get all cookies
let cookies = context.cookies(None).await?;

// Get cookies for specific URLs
let cookies = context.cookies(Some(&["https://example.com"])).await?;

// Clear all cookies
context.clear_cookies().clear().await?;

// Clear cookies matching a pattern
context.clear_cookies()
    .domain("example.com")
    .clear()
    .await?;

Storage State

Save and restore browser state for authentication:

use viewpoint_core::{Browser, StorageStateSource};

// Save storage state after login
context.storage_state()
    .path("auth.json")
    .save()
    .await?;

// Create a new context with saved state
let context = browser.new_context_builder()
    .storage_state_path("auth.json")
    .build()
    .await?;

Event Handling

use viewpoint_core::Browser;

// Listen for new pages
let handler_id = context.on_page(|page_info| async move {
    println!("New page created: {}", page_info.target_id);
    Ok(())
}).await;

// Listen for context close
context.on_close(|| async {
    println!("Context closed");
    Ok(())
}).await;

// Remove handler later
context.off_page(handler_id).await;

Tracing

use viewpoint_core::Browser;

// Start tracing
context.tracing().start().await?;

// ... perform actions ...

// Stop and save trace
context.tracing().stop("trace.zip").await?;

Re-exports

pub use events::ContextEventManager;

pub use events::HandlerId;

pub use storage::StorageStateBuilder;

pub use storage::StorageStateOptions;

pub use trace::Tracing;

pub use trace::TracingOptions;

pub use types::ColorScheme;

pub use types::ContextOptions;

pub use types::ContextOptionsBuilder;

pub use types::Cookie;

pub use types::ForcedColors;

pub use types::Geolocation;

pub use types::HttpCredentials;

pub use types::IndexedDbDatabase;

pub use types::IndexedDbEntry;

pub use types::IndexedDbIndex;

pub use types::IndexedDbObjectStore;

pub use types::LocalStorageEntry;

pub use types::Permission;

pub use types::ProxyConfig;

pub use types::ReducedMotion;

pub use types::SameSite;

pub use types::StorageOrigin;

pub use types::StorageState;

pub use types::StorageStateSource;

pub use types::ViewportSize;

pub use crate::page::page_error::WebError;

Modules

binding

Context-level exposed function bindings.

events

Event system infrastructure for browser context.

routing

Context-level network routing.

storage

Storage state collection and restoration.

trace

Tracing implementation for recording test execution traces.

types

Context-related types.

Structs

BrowserContext

An isolated browser context.

ClearCookiesBuilder

Builder for clearing cookies with filters.

PageInfo

Information about a page in the context.

SetGeolocationBuilder

Builder for setting geolocation.

Constants

DEFAULT_TEST_ID_ATTRIBUTE

Default test ID attribute name.

Type Aliases

WebErrorHandler

Type alias for web error handler function.