Bug 115820 - When a child becomes floated or out-of-flow it should find an anonymous wrapper if necessary
Summary: When a child becomes floated or out-of-flow it should find an anonymous wrapp...
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on: 115687
Blocks:
  Show dependency tree / graph
 
Reported: 2013-05-08 12:29 PDT by Robert Hogan
Modified: 2013-05-18 03:24 PDT (History)
1 user (show)

See Also:

Attachments
Reduction (742 bytes, text/html)
2013-05-08 12:29 PDT, Robert Hogan 		no flags Details
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Description Robert Hogan 2013-05-08 12:29:05 PDT 
Created attachment 201096 [details]
Reduction

When a child becomes floated or out-of-flow it should check if its previous sibling is an anonymous block - if so, it should move in under the anonymous block.
Comment 1 Robert Hogan 2013-05-18 03:24:00 PDT 
I definitely need advice on how to go about doing this - anonymous blocks are too complicated for trial and error.

If the render tree is like this:

      RenderBlock (anonymous) at (0,73) size 320x19
        RenderInline {SPAN} at (0,0) size 40x19
          RenderInline {SPAN} at (0,0) size 40x19 [bgcolor=#FF0000]
      RenderBlock (anonymous) at (0,92) size 320x40
        RenderBlock {DIV} at (0,0) size 160x40 [bgcolor=#008000]
          RenderText {#text} at (0,10) size 4x19
            text run at (0,10) width 4: " "
      RenderBlock (anonymous) at (0,132) size 320x0
        RenderInline {SPAN} at (0,0) size 0x0
      RenderBlock (anonymous) at (0,132) size 320x0
        RenderBlock {DIV} at (0,0) size 320x0
      RenderBlock (anonymous) at (0,132) size 320x0
        RenderInline {SPAN} at (0,0) size 0x0
          RenderInline {SPAN} at (0,0) size 0x0
            RenderText {#text} at (0,0) size 0x0
            RenderText {#text} at (0,0) size 0x0

and the first div becomes a float, I need to change it to this:

      RenderBlock (anonymous) at (0,73) size 320x19
        RenderInline {SPAN} at (0,0) size 40x19
          RenderInline {SPAN} at (0,0) size 40x19 [bgcolor=#FF0000]
          RenderBlock {DIV} (floating) at (0,0) size 160x40 [bgcolor=#008000]
            RenderText {#text} at (0,10) size 4x19
              text run at (0,10) width 4: " "
      RenderBlock (anonymous) at (0,132) size 320x0
        RenderBlock {DIV} at (0,0) size 320x0
      RenderBlock (anonymous) at (0,132) size 320x0
        RenderInline {SPAN} at (0,0) size 0x0
          RenderInline {SPAN} at (0,0) size 0x0
            RenderText {#text} at (0,0) size 0x0
            RenderText {#text} at (0,0) size 0x0

Can I just use moveChildTo() to move the float into the preceding anonymous block and destroy its old anonymous block parent? Or will I then need to rewrite the continuation map to link the RenderInline parent to the anonymous block containing the remaining block-flow DIV?