Introduction

Shortcuts for Chrome is essentially constructed as follows.

All user interaction happens through the visible extension icon. Clicking on the icon renders the relevant extension menus. Modules running in the background context are "headless," meaning there is no human-visible interface. Different extension modules communicate by message passing and over shared memory.

flowchart LR
    A[background context] e1@-.- B[extension Icon]
    B -->|left-click| newLines["popup window
          with menu"]
    B -->|right-click| D[context menu]

The diagram visualization follows closely to the source code organization, in the src directory.

• popup manages the popup window that is visible at the browser front-end. It saves and restores user preferences and loads the navigation menu inside the popup window.

• menu displays a list of Chrome shortcuts. It programmatically handles link click actions and logs recently used links.

• background modules manage the extension context menu, that has some additional useful links.

Technical details of the modules are in source code documentation.