Squashed 'thirdparty/preact/' content from commit b2d90cc

git-subtree-dir: thirdparty/preact
git-subtree-split: b2d90cc116f1d1998f7a7c98dc6986bf4c1841f4

1 files changed, 20 insertions, 0 deletions

diff --git a/src/constants.js b/src/constants.js
new file mode 100644
index 000000000..138cd0983
--- /dev/null
+++ b/src/constants.js
@@ -0,0 +1,20 @@
+// render modes
+
+export const NO_RENDER = 0;
+export const SYNC_RENDER = 1;
+export const FORCE_RENDER = 2;
+export const ASYNC_RENDER = 3;
+
+export const EMPTY = {};
+
+export const ATTR_KEY = typeof Symbol!=='undefined' ? Symbol.for('preactattr') : '__preactattr_';
+
+// DOM properties that should NOT have "px" added when numeric
+export const NON_DIMENSION_PROPS = {
+	boxFlex:1, boxFlexGroup:1, columnCount:1, fillOpacity:1, flex:1, flexGrow:1,
+	flexPositive:1, flexShrink:1, flexNegative:1, fontWeight:1, lineClamp:1, lineHeight:1,
+	opacity:1, order:1, orphans:1, strokeOpacity:1, widows:1, zIndex:1, zoom:1
+};
+
+// DOM event types that do not bubble and should be attached via useCapture
+export const NON_BUBBLING_EVENTS = { blur:1, error:1, focus:1, load:1, resize:1, scroll:1 };