Change ptw-20110107-ucB by [email protected] on 2011-01-07 19:29:45 EST
in /Users/ptw/OpenLaszlo/trunk-3
for http://svn.openlaszlo.org/openlaszlo/trunk
Summary: Improve CSS performance and function
Bugs Fixed:
LPP-9617 Need a way to define CSS property abbreviations (and their
expansion)
LPP-9567 Attribute init order is non-deterministic (partial)
Technical Reviewer: [email protected] (pending)
QA Reviewer: [email protected] (pending)
Doc Reviewer: [email protected] (pending)
Release Notes:
You can now rely on attributes being initialize according to the
kind of initial value they have. Attributes with immediate values
are initialized first, followed by attributes with style bindings,
followed by attributes with constraints. Within those groupings,
the ordering is indeterminite.
As a consequence of this change, you can now reliably created
constraints that depend on style bindings.
Overview:
Completely revamped the way CSS styles are applied to nodes,
maintaining the defaulting and overriding semantics, but allowing
style-bindings to be applied /en masse/ rather than as individual
constraints. The result should be the style bindings are
significantly more efficient than constraints.
Added support for CSS property "expanders" to handle CSS
abbreviated properties with correct inheritance and overriding.
Added support for nodes to know at runtime the type of their
attributes. There is a single data structure that describes
attributes' type, style-binding, and fallback value.
Details:
lfc-undeclared: Add $attributeDescriptor and $CDDSescriptor
LzCSSStyle: Handle property expanders.
LzDebug: Improve explainStyleBindings to display local overrides
of CSS bindings (whether by constraint or explicit value), and to
understand attribute types and property expanders.
LzNode: Process style bindings separately from constraints using
the new batch mechanism.
LzNode, LzDefs, LzState, LzReplicationManager: Remove previous
attribute descriptor mechanism which was not fully implemented and
was inefficient. Use new compile-time evaluator to simplify
debug/profile decisions. StyleConstraints are now just a marker
that is used to determine inheritance and overriding, not to carry
the actual style binding.
PresentationTypes: add a way to create a presentation type value
from a presentation value for debugging.
LaszloCanvas: update style binding suppor to new mechanism.
LzDebugStub: Let's allow a bigger stack.
ViewSchema: Add new attribute property `expander`.
NodeModel, ClassModel: Impement expander. Handle nodes that are
not in the DOM (for debugging). Implement new style binding
scheme, gather attribute descriptor information, compute
inheritance at compile time and install in class. Only install in
instances when necessary. Fake type information for built-in's.
Handle legacy $style bindings compatibly. Do common subr
elimination on init args by hand.
boxmodel: Implement expanders for abbreviated properties
Tests:
Test case from bug. styles/metasuite, smokecheck
Files:
M WEB-INF/lps/schema/lfc-undeclared.lzx
M WEB-INF/lps/lfc/services/LzCSSStyle.lzs
M WEB-INF/lps/lfc/debugger/LzDebug.lzs
M WEB-INF/lps/lfc/core/LzNode.lzs
M WEB-INF/lps/lfc/core/PresentationTypes.lzs
M WEB-INF/lps/lfc/core/LzDefs.lzs
M WEB-INF/lps/lfc/views/LaszloCanvas.lzs
M WEB-INF/lps/lfc/helpers/LzState.lzs
M WEB-INF/lps/lfc/data/LzReplicationManager.lzs
M WEB-INF/lps/lfc/compiler/LzDebugStub.lzs
M WEB-INF/lps/server/src/org/openlaszlo/compiler/ViewSchema.java
M WEB-INF/lps/server/src/org/openlaszlo/compiler/NodeModel.java
M WEB-INF/lps/server/src/org/openlaszlo/compiler/ClassModel.java
M lps/components/mixins/boxmodel.lzx
Changeset: http://svn.openlaszlo.org/openlaszlo/patches/ptw-20110107-ucB.tar
