[FOP-2816] The property keep-together.within-page='always' implies keep-together.within-column='always' (there should be a difference)

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.3
• Component/s: layout/page
• Assignee: Unassigned
• Reporter: Dan Caprioara
• Created: 17/Sep/18 12:17
• Updated: 17/Sep/18 12:17

Description

This is an example: A document having two columns and as series of small sections, called steps. Each of the "step" block has the attributes:

 keep-together.within-column="auto"
 keep-together.within-page="always"

The "step" at the end of the first column should break on the two columns, as it has keep-together.within-column="auto". Instead it moves completely to the second column.

In fact it behaves as the column breaks and page breaks are considered by FOP to be the same thing.

<?xml version="1.0" encoding="UTF-8"?>
<fo:root
  xml:lang="dflt"
  xmlns:chfox="http://www.oxygenxml.com/chemistry/extensions/fop"
  xmlns:css="http://www.w3.org/1998/CSS"
  xmlns:fo="http://www.w3.org/1999/XSL/Format"
  xmlns:fox="http://xmlgraphics.apache.org/fop/extensions">
  <fo:layout-master-set>
    <!-- Page: csdefault-->
    <fo:page-sequence-master
      master-name="csdefault">
      <fo:repeatable-page-master-alternatives>
        <fo:conditional-page-master-reference
          blank-or-not-blank="any"
          master-reference="spm-csdefault"
          odd-or-even="any"
          page-position="any"/>
      </fo:repeatable-page-master-alternatives>
    </fo:page-sequence-master>
    <fo:simple-page-master
      master-name="spm-csdefault"
      page-height="11in"
      page-width="8.5in">
      <fo:region-body
        border-bottom-color="red"
        border-bottom-style="solid"
        border-bottom-width="2pt"
        border-left-color="red"
        border-left-style="solid"
        border-left-width="2pt"
        border-right-color="red"
        border-right-style="solid"
        border-right-width="2pt"
        border-top-color="red"
        border-top-style="solid"
        border-top-width="2pt"
        column-count="2"
        margin-bottom="1in"
        margin-left="1in"
        margin-right="1in"
        margin-top="1in"/>
      <fo:region-before
        extent="1in"
        region-name="sc-before"/>
      <fo:region-after
        extent="1in"
        region-name="sc-after"/>
      <fo:region-start
        extent="1in"
        region-name="sc-start"/>
      <fo:region-end
        extent="1in"
        region-name="sc-end"/>
    </fo:simple-page-master>
  </fo:layout-master-set>
 
  <fo:page-sequence
    force-page-count="no-force"
    id="last-page-sequence"
    line-height-shift-adjustment="disregard-shifts"
    master-reference="csdefault">
    <fo:flow
      flow-name="xsl-region-body">
      <fo:block
        font-family="DEFAULT_SERIF_FONT"
        font-size="2em">
        <fo:block
          font-style="italic">The step should not break on two pages, but should break on two
          columns . </fo:block>
        <fo:block-container
          border-bottom-color="blue"
          border-bottom-style="solid"
          border-bottom-width="1pt"
          border-left-color="blue"
          border-left-style="solid"
          border-left-width="1pt"
          border-right-color="blue"
          border-right-style="solid"
          border-right-width="1pt"
          border-top-color="blue"
          border-top-style="solid"
          border-top-width="1pt"
          keep-together.within-column="auto"
          keep-together.within-page="always"
          margin-left="0"
          margin-right="0">
          <fo:block
            end-indent="0"
            start-indent="0"> This is a step with some text content that should wrap somehow on
            multiple lines. </fo:block>
        </fo:block-container>
        <fo:block-container
          border-bottom-color="blue"
          border-bottom-style="solid"
          border-bottom-width="1pt"
          border-left-color="blue"
          border-left-style="solid"
          border-left-width="1pt"
          border-right-color="blue"
          border-right-style="solid"
          border-right-width="1pt"
          border-top-color="blue"
          border-top-style="solid"
          border-top-width="1pt"
          keep-together.within-column="auto"
          keep-together.within-page="always"
          margin-left="0"
          margin-right="0">
          <fo:block
            end-indent="0"
            start-indent="0"> This is a step with some text content that should wrap somehow on
            multiple lines. </fo:block>
        </fo:block-container>
        <fo:block-container
          border-bottom-color="blue"
          border-bottom-style="solid"
          border-bottom-width="1pt"
          border-left-color="blue"
          border-left-style="solid"
          border-left-width="1pt"
          border-right-color="blue"
          border-right-style="solid"
          border-right-width="1pt"
          border-top-color="blue"
          border-top-style="solid"
          border-top-width="1pt"
          keep-together.within-column="auto"
          keep-together.within-page="always"
          margin-left="0"
          margin-right="0">
          <fo:block
            end-indent="0"
            start-indent="0"> This is a step with some text content that should wrap somehow on
            multiple lines. </fo:block>
        </fo:block-container>
        <fo:block-container
          border-bottom-color="blue"
          border-bottom-style="solid"
          border-bottom-width="1pt"
          border-left-color="blue"
          border-left-style="solid"
          border-left-width="1pt"
          border-right-color="blue"
          border-right-style="solid"
          border-right-width="1pt"
          border-top-color="blue"
          border-top-style="solid"
          border-top-width="1pt"
          keep-together.within-column="auto"
          keep-together.within-page="always"
          margin-left="0"
          margin-right="0">
          <fo:block
            end-indent="0"
            start-indent="0"> This is a step with some text content that should wrap somehow on
            multiple lines. </fo:block>
        </fo:block-container>
        <fo:block-container
          border-bottom-color="blue"
          border-bottom-style="solid"
          border-bottom-width="1pt"
          border-left-color="blue"
          border-left-style="solid"
          border-left-width="1pt"
          border-right-color="blue"
          border-right-style="solid"
          border-right-width="1pt"
          border-top-color="blue"
          border-top-style="solid"
          border-top-width="1pt"
          keep-together.within-column="auto"
          keep-together.within-page="always"
          margin-left="0"
          margin-right="0">
          <fo:block
            end-indent="0"
            start-indent="0"> This is a step with some text content that should wrap somehow on
            multiple lines. </fo:block>
        </fo:block-container>
        <fo:block-container
          border-bottom-color="blue"
          border-bottom-style="solid"
          border-bottom-width="1pt"
          border-left-color="blue"
          border-left-style="solid"
          border-left-width="1pt"
          border-right-color="blue"
          border-right-style="solid"
          border-right-width="1pt"
          border-top-color="blue"
          border-top-style="solid"
          border-top-width="1pt"
          keep-together.within-column="auto"
          keep-together.within-page="always"
          margin-left="0"
          margin-right="0">
          <fo:block
            end-indent="0"
            start-indent="0"> This is a step with some text content that should wrap somehow on
            multiple lines. </fo:block>
        </fo:block-container>
        <fo:block-container
          border-bottom-color="blue"
          border-bottom-style="solid"
          border-bottom-width="1pt"
          border-left-color="blue"
          border-left-style="solid"
          border-left-width="1pt"
          border-right-color="blue"
          border-right-style="solid"
          border-right-width="1pt"
          border-top-color="blue"
          border-top-style="solid"
          border-top-width="1pt"
          keep-together.within-column="auto"
          keep-together.within-page="always"
          margin-left="0"
          margin-right="0">
          <fo:block
            end-indent="0"
            start-indent="0"> This is a step with some text content that should wrap somehow on
            multiple lines. </fo:block>
        </fo:block-container>
        <fo:block-container
          border-bottom-color="blue"
          border-bottom-style="solid"
          border-bottom-width="1pt"
          border-left-color="blue"
          border-left-style="solid"
          border-left-width="1pt"
          border-right-color="blue"
          border-right-style="solid"
          border-right-width="1pt"
          border-top-color="blue"
          border-top-style="solid"
          border-top-width="1pt"
          keep-together.within-column="auto"
          keep-together.within-page="always"
          margin-left="0"
          margin-right="0">
          <fo:block
            end-indent="0"
            start-indent="0"> This is a step with some text content that should wrap somehow on
            multiple lines. </fo:block>
        </fo:block-container>
        <fo:block-container
          border-bottom-color="blue"
          border-bottom-style="solid"
          border-bottom-width="1pt"
          border-left-color="blue"
          border-left-style="solid"
          border-left-width="1pt"
          border-right-color="blue"
          border-right-style="solid"
          border-right-width="1pt"
          border-top-color="blue"
          border-top-style="solid"
          border-top-width="1pt"
          keep-together.within-column="auto"
          keep-together.within-page="always"
          margin-left="0"
          margin-right="0">
          <fo:block
            end-indent="0"
            start-indent="0"> This is a step with some text content that should wrap somehow on
            multiple lines. </fo:block>
        </fo:block-container>
        <fo:block-container
          border-bottom-color="blue"
          border-bottom-style="solid"
          border-bottom-width="1pt"
          border-left-color="blue"
          border-left-style="solid"
          border-left-width="1pt"
          border-right-color="blue"
          border-right-style="solid"
          border-right-width="1pt"
          border-top-color="blue"
          border-top-style="solid"
          border-top-width="1pt"
          keep-together.within-column="auto"
          keep-together.within-page="always"
          margin-left="0"
          margin-right="0">
          <fo:block
            end-indent="0"
            start-indent="0"> This is a step with some text content that should wrap somehow on
            multiple lines. </fo:block>
        </fo:block-container>
        <fo:block-container
          border-bottom-color="blue"
          border-bottom-style="solid"
          border-bottom-width="1pt"
          border-left-color="blue"
          border-left-style="solid"
          border-left-width="1pt"
          border-right-color="blue"
          border-right-style="solid"
          border-right-width="1pt"
          border-top-color="blue"
          border-top-style="solid"
          border-top-width="1pt"
          keep-together.within-column="auto"
          keep-together.within-page="always"
          margin-left="0"
          margin-right="0">
          <fo:block
            end-indent="0"
            start-indent="0"> This is a step with some text content that should wrap somehow on
            multiple lines. </fo:block>
        </fo:block-container>
        <fo:block-container
          border-bottom-color="blue"
          border-bottom-style="solid"
          border-bottom-width="1pt"
          border-left-color="blue"
          border-left-style="solid"
          border-left-width="1pt"
          border-right-color="blue"
          border-right-style="solid"
          border-right-width="1pt"
          border-top-color="blue"
          border-top-style="solid"
          border-top-width="1pt"
          keep-together.within-column="auto"
          keep-together.within-page="always"
          margin-left="0"
          margin-right="0">
          <fo:block
            end-indent="0"
            start-indent="0"> This is a step with some text content that should wrap somehow on
            multiple lines. </fo:block>
        </fo:block-container>
      </fo:block>
    </fo:flow>
  </fo:page-sequence>
</fo:root>