Console Tool Architecture

The Console panel is responsible for rendering all logs coming from the current page.

Architecture

Internal architecture of the Console panel (the client side) is described on the following diagram.

Console panel architecture

Entry points

There are two ways to load the Console panel. It can either run on top of the Launchpad (inside a browser tab) or within the DevTools Toolbox.

There are different entry points for these scenarios:

  • Launchpad - uses index.js file as the entry point
  • Toolbox - uses panel.js file as the entry point

Components

The Console panel UI is built on top of React. It defines set of React components in components directory

Actions

The Console panel implements a set of actions divided into several groups.

  • Filters Actions related to content filtering.
  • Messages Actions related to list of messages rendered in the panel.
  • UI Actions related to the UI state.

State

The Console panel manages the app state via Redux.

There are following reducers defining the panel state:

  • reducers/filters.js state for panel filters. These filters can be set from within the panel's toolbar (e.g. error, info, log, css, etc.)
  • reducers/messages.js state of all messages rendered within the panel.
  • reducers/prefs.js Preferences associated with the Console panel (e.g. logLimit)
  • reducers/ui.js UI related state (sometimes also called a presentation state). This state contains state of the filter bar (visible/hidden), state of the time-stamp (visible/hidden), etc.

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