w3c/csswg-drafts

[cssom-view] API for final dimension / position of object-fit items

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#1,779 建立於 2017年9月5日

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描述

As it is now, there is no way to detect the final position and dimension of a object-fit element.

This is particularly problematic for things like canvas, where sometimes mapping mouse coordinates is needed.

Would it be possible for GetComputedStyle to return the top,right,bottom,left of the fit?

貢獻者指南

技術棧
csshtmljavascript
領域
apifrontend
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
over 1 week
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
CSS object fit propertyCSSOM specification
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
15
研究方向
Investigate the CSSOM specification for element resize and position. Examine the object fit property's rendering algorithm to understand how final dimensions are computed. Review any existing proposals or use cases for exposing these coordinates. Consider how this could be implemented as an extension to getComputedStyle.