Fabric.js 1.7.12 釋出，簡易 JavaScript Canvas 庫

fabric.js 1.7.12 已釋出，fabric.js 是一款簡單而強大的 javascript canvas 庫，在 html5 canvas 元素之上提供了互動的對象模型，同時還包含 canvas-to-svg 解析器。

使用 fabric.js 你可以建立和填充畫布上的對象，從簡單的幾何圖形到成百上千路徑組成的複雜圖形。你可以通過滑鼠輕松的移動、縮放和旋轉這些對象，修改它們的屬性（顔色、透明度，層疊順序）等等。

更新内容：

fix: removed possible memleaks from window resize event. #3984

fix: restored default cursor to notarget only. unselectable objects get the standard hovercursor. #3953

cache fixes: fix uncached pathgroup, removed cache creation at initialize time #3982

improvement: nexttarget to mouseout and prevtarget to mouseover #3900

improvement: add isclick boolean to left mouse up #3898

fix: can start selection on top of non selectable object #3892

improvement: better management of right/middle click #3888

fix: subtargetcheck on activeobject/activegroup was firing too many events #3909

fix: after addwithupdate or removewithupdate object coords must be updated. #3911