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Merge in downstream changes.

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Introduce `ASTableView`, a UITableView subclass that uses `ASCellNode`
instead of UITableViewCell.  Add working range support via
`ASRangeController`, which observes the visible range, maintains a
working range, and handles most ASDK machinery.  ASRangeController is
loosely-enough coupled that it should be easily adapted to
UICollectionView if that's desired in the future.

Notable considerations in the ASRangeController architecture:

* There's no sense rewriting UITableView -- the real win comes from
  using nodes instead of UITableViewCells (easily parallelisable
  computation, large number of cells vs. few table views, etc.).  So,
  use a UITableView with empty cells, using UITableViewCell's
  contentView as a host for arbitrary node hierarchies.

* Instead of lazy-loading cells the instant they're needed by
  UITableView, load them in advance.  Preload a substantial number of
  nodes in the direction of scroll, as well as a small buffer in the
  other direction.

* Maintain compatibility with UITableView's API, with one primary change
  -- consumer code yields configured ASCellNodes, not UITableViewCells.

* Don't use -tableView:heightForRowAtIndexPath:.  Nodes already compute
  their preferred sizes and cache results for use at layout-time, so
  ASTableView uses their calculatedSizes directly.

* Corollary:  ASTableView is only aware of nodes that have been sized.
  This means that, if a cell appears onscreen, it has layout data and
  can display a "realistic placeholder", e.g. by making its subnodes'
  background colour grey.

Other improvements:

* Remove dead references and update headers (fixes #7, #20).

* Rename `-[ASDisplayNode sizeToFit:]` to `-measure:` and fix
  `constrainedSizeForCalulatedSize` typo (fixes #15).

* Rename `-willAppear` and `-didDisappear` to `-willEnterHierarchy` and
  `-didExitHierarchy`.  Remove `-willDisappear` -- it was redundant, and
  there was no counterpart `-didAppear`.

* Rename `viewLoaded` to `nodeLoaded`.
This commit is contained in:
Nadine Salter
2014-09-22 14:16:28 -07:00
parent 0053e00a52
commit 7dd94a6102
19 changed files with 1821 additions and 232 deletions
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30
AsyncDisplayKit.xcodeproj/project.pbxproj
View File

@@ -7,6 +7,13 @@
objects = {
/* Begin PBXBuildFile section */
055F1A3419ABD3E3004DAFF1 /* ASTableView.h in Headers */ = {isa = PBXBuildFile; fileRef = 055F1A3219ABD3E3004DAFF1 /* ASTableView.h */; settings = {ATTRIBUTES = (Public, ); }; };
055F1A3519ABD3E3004DAFF1 /* ASTableView.m in Sources */ = {isa = PBXBuildFile; fileRef = 055F1A3319ABD3E3004DAFF1 /* ASTableView.m */; };
055F1A3819ABD413004DAFF1 /* ASRangeController.h in Headers */ = {isa = PBXBuildFile; fileRef = 055F1A3619ABD413004DAFF1 /* ASRangeController.h */; settings = {ATTRIBUTES = (Public, ); }; };
055F1A3919ABD413004DAFF1 /* ASRangeController.mm in Sources */ = {isa = PBXBuildFile; fileRef = 055F1A3719ABD413004DAFF1 /* ASRangeController.mm */; };
055F1A3C19ABD43F004DAFF1 /* ASCellNode.h in Headers */ = {isa = PBXBuildFile; fileRef = 055F1A3A19ABD43F004DAFF1 /* ASCellNode.h */; settings = {ATTRIBUTES = (Public, ); }; };
055F1A3D19ABD43F004DAFF1 /* ASCellNode.m in Sources */ = {isa = PBXBuildFile; fileRef = 055F1A3B19ABD43F004DAFF1 /* ASCellNode.m */; };
0574D5E219C110940097DC25 /* ASTableViewProtocols.h in Headers */ = {isa = PBXBuildFile; fileRef = 0574D5E119C110610097DC25 /* ASTableViewProtocols.h */; settings = {ATTRIBUTES = (Public, ); }; };
058D09B0195D04C000B7D73C /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 058D09AF195D04C000B7D73C /* Foundation.framework */; };
058D09BE195D04C000B7D73C /* XCTest.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 058D09BD195D04C000B7D73C /* XCTest.framework */; };
058D09BF195D04C000B7D73C /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 058D09AF195D04C000B7D73C /* Foundation.framework */; };
@@ -138,6 +145,14 @@
/* End PBXCopyFilesBuildPhase section */
/* Begin PBXFileReference section */
053011A719B9882B00A9F2D0 /* ASRangeControllerInternal.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = ASRangeControllerInternal.h; sourceTree = "<group>"; };
055F1A3219ABD3E3004DAFF1 /* ASTableView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASTableView.h; sourceTree = "<group>"; };
055F1A3319ABD3E3004DAFF1 /* ASTableView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ASTableView.m; sourceTree = "<group>"; };
055F1A3619ABD413004DAFF1 /* ASRangeController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASRangeController.h; sourceTree = "<group>"; };
055F1A3719ABD413004DAFF1 /* ASRangeController.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = ASRangeController.mm; sourceTree = "<group>"; };
055F1A3A19ABD43F004DAFF1 /* ASCellNode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASCellNode.h; sourceTree = "<group>"; };
055F1A3B19ABD43F004DAFF1 /* ASCellNode.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ASCellNode.m; sourceTree = "<group>"; };
0574D5E119C110610097DC25 /* ASTableViewProtocols.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = ASTableViewProtocols.h; sourceTree = "<group>"; };
058D09AC195D04C000B7D73C /* libAsyncDisplayKit.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = libAsyncDisplayKit.a; sourceTree = BUILT_PRODUCTS_DIR; };
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058D09B3195D04C000B7D73C /* AsyncDisplayKit-Prefix.pch */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "AsyncDisplayKit-Prefix.pch"; sourceTree = "<group>"; };
@@ -295,6 +310,11 @@
058D09E0195D050800B7D73C /* ASTextNode.mm */,
058D09DD195D050800B7D73C /* ASImageNode.h */,
058D09DE195D050800B7D73C /* ASImageNode.mm */,
055F1A3219ABD3E3004DAFF1 /* ASTableView.h */,
0574D5E119C110610097DC25 /* ASTableViewProtocols.h */,
055F1A3319ABD3E3004DAFF1 /* ASTableView.m */,
055F1A3A19ABD43F004DAFF1 /* ASCellNode.h */,
055F1A3B19ABD43F004DAFF1 /* ASCellNode.m */,
058D09E1195D050800B7D73C /* Details */,
058D0A01195D050800B7D73C /* Private */,
058D09B2195D04C000B7D73C /* Supporting Files */,
@@ -364,6 +384,8 @@
058D09F4195D050800B7D73C /* ASTextNodeWordKerner.m */,
058D09F5195D050800B7D73C /* NSMutableAttributedString+TextKitAdditions.h */,
058D09F6195D050800B7D73C /* NSMutableAttributedString+TextKitAdditions.m */,
055F1A3619ABD413004DAFF1 /* ASRangeController.h */,
055F1A3719ABD413004DAFF1 /* ASRangeController.mm */,
058D09F7195D050800B7D73C /* Transactions */,
058D09FF195D050800B7D73C /* UIView+ASConvenience.h */,
058D0A00195D050800B7D73C /* UIView+ASConvenience.m */,
@@ -402,6 +424,7 @@
058D0A0D195D050800B7D73C /* ASImageNode+CGExtras.h */,
058D0A0E195D050800B7D73C /* ASImageNode+CGExtras.m */,
058D0A0F195D050800B7D73C /* ASImageProtocols.h */,
053011A719B9882B00A9F2D0 /* ASRangeControllerInternal.h */,
058D0A10195D050800B7D73C /* ASSentinel.h */,
058D0A11195D050800B7D73C /* ASSentinel.m */,
);
@@ -437,6 +460,10 @@
058D0A50195D05CB00B7D73C /* ASImageNode.mm in Headers */,
058D0A51195D05CB00B7D73C /* ASTextNode.h in Headers */,
058D0A52195D05CB00B7D73C /* ASTextNode.mm in Headers */,
055F1A3819ABD413004DAFF1 /* ASRangeController.h in Headers */,
055F1A3419ABD3E3004DAFF1 /* ASTableView.h in Headers */,
0574D5E219C110940097DC25 /* ASTableViewProtocols.h in Headers */,
055F1A3C19ABD43F004DAFF1 /* ASCellNode.h in Headers */,
058D0A53195D05DC00B7D73C /* _ASDisplayLayer.h in Headers */,
058D0A54195D05DC00B7D73C /* _ASDisplayLayer.mm in Headers */,
058D0A55195D05DC00B7D73C /* _ASDisplayView.h in Headers */,
@@ -615,6 +642,7 @@
058D0A2C195D050800B7D73C /* ASSentinel.m in Sources */,
058D0A15195D050800B7D73C /* ASDisplayNodeExtras.mm in Sources */,
058D0A1F195D050800B7D73C /* ASTextNodeTextKitHelpers.mm in Sources */,
055F1A3519ABD3E3004DAFF1 /* ASTableView.m in Sources */,
058D0A1D195D050800B7D73C /* ASTextNodeRenderer.mm in Sources */,
058D0A2A195D050800B7D73C /* ASDisplayNode+UIViewBridge.mm in Sources */,
058D0A20195D050800B7D73C /* ASTextNodeWordKerner.m in Sources */,
@@ -626,6 +654,7 @@
058D0A1B195D050800B7D73C /* ASMutableAttributedStringBuilder.m in Sources */,
058D0A2B195D050800B7D73C /* ASImageNode+CGExtras.m in Sources */,
058D0A24195D050800B7D73C /* _ASAsyncTransactionGroup.m in Sources */,
055F1A3D19ABD43F004DAFF1 /* ASCellNode.m in Sources */,
058D0A1C195D050800B7D73C /* ASTextNodeCoreTextAdditions.m in Sources */,
058D0A13195D050800B7D73C /* ASControlNode.m in Sources */,
058D0A19195D050800B7D73C /* _ASDisplayView.mm in Sources */,
@@ -634,6 +663,7 @@
058D0A16195D050800B7D73C /* ASImageNode.mm in Sources */,
058D0A29195D050800B7D73C /* ASDisplayNode+DebugTiming.mm in Sources */,
058D0A22195D050800B7D73C /* _ASAsyncTransaction.m in Sources */,
055F1A3919ABD413004DAFF1 /* ASRangeController.mm in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;
};