Use StyledNodes instead of passing the entire DOM to the layout engine

This moves pseudo element generation to the cascading phase.
For now it also breaks style caching.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/css/stylednode.nim b/src/css/stylednode.nim
new file mode 100644
index 00000000..d6293187
--- /dev/null
+++ b/src/css/stylednode.nim
@@ -0,0 +1,18 @@
+import css/values
+import html/dom
+
+# Container to hold a style and a node.
+# Pseudo elements are implemented using StyledNode objects without nodes.
+type
+  StyledType* = enum
+    STYLED_ELEMENT, STYLED_TEXT
+
+  StyledNode* = ref object
+    case t*: StyledType
+    of STYLED_ELEMENT:
+      pseudo*: PseudoElem
+      computed*: CSSComputedValues
+    of STYLED_TEXT:
+      text*: string
+    node*: Node
+    children*: seq[StyledNode]