NPAPI:BrowserZoomLevelQuery: Difference between revisions
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(Changed browser zoom to Browser CSS Zoom to make zoom more specific, added requirement for NPP_SetValue) |
(Change variable name again) |
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NPNVCSSZoomFactor = 23 | |||
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Revision as of 00:26, 29 January 2016
Status
Initial Draft
Contributors
- Last modified: 2016-01-28
- Authors: Kyle Machulis (Mozilla)
Overview
Currently, NPAPI plugins have no way to know if the browser is running at a CSS zoom level other than 1x. We need an addition to the API that allows plugins to query the current browser CSS zoom level.
Specification
We'll need to add a NPNV variable:
NPNVCSSZoomFactor = 23
This can be retrieved via NPN_GetValue, and will return a double representing the current CSS zoom level of the browser. Since changing CSS zoom levels updates the window properties, this value can be re-queried during NPN_SetWindow or other window property update calls, to see if a zoom change has been made. It will also be sent via NPP_SetValue so that plugins can be notified when it changes.