API: CSS: Body Telemetry

Description

The MWF Javascript Handler writes a set of classes into the body tag of each page in which it is present. These classes offer information about the visiting device that a content provider can use to write targeted CSS and Javascript.

Intent

To offer telemetry describing the device capabilities determined by the MWF available to front-end code so that content providers can have a greater level of control and specificity when writing CSS/JS.

Classes

The following classes are written into the page by js.php.

• .mwf - If the MWF was able to write classes into the body tag at all.
• .mwf_mobile - If device is regarded as mobile.
• .mwf_notmobile - If device is regarded as non-mobile.
• .mwf_standard - If device falls under the "standard" classification.
• .mwf_full - If device falls under the "full" classification.
• .mwf_browser_{name} - Browser name.
• .mwf_browser_{name}_{version} - Browser name and version.
• .mwf_os_{name} - Operating system. One of:
  • mwf_os_iphone_os
  • mwf_os_android
  • mwf_os_blackberry
  • mwf_os_windows_phone_os
  • mwf_os_symbian
  • mwf_os_webos
  • mwf_os_mac_os_x
  • mwf_os_windows_nt
  • mwf_os_linux
• .mwf_os_{name}_{version} - Device OS name and version.