Goldenlayout child triggers "UI can't be modified in the rendering phase"

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    • Type: Bug
    • Resolution: Fixed
    • Priority: Major
    • 9.0.1
    • Affects Version/s: 8.6.3
    • Component/s: Components
    • Security Level: Jimmy
    • ZK 9.0.1 S1
    • None

      Steps to reproduce

      run fiddle http://zkfiddle.org/sample/3v53051/2-goldenlayout-vflex-during-render

      click the "add goldenpannel" button twice

      Current result

      on 2nd click, goldenlayout and the new goldenpannel are both added to the page.

      This causes the following exception

      java.lang.IllegalStateException: UI can't be modified in the rendering phasejava.lang.IllegalStateException: UI can't be modified in the rendering phase at org.zkoss.zk.ui.impl.UiVisualizer.getAttrRespMap(UiVisualizer.java:325) at org.zkoss.zk.ui.impl.UiVisualizer.addSmartUpdate0(UiVisualizer.java:278) at org.zkoss.zk.ui.impl.UiVisualizer.addSmartUpdate(UiVisualizer.java:256) at org.zkoss.zk.ui.impl.UiEngineImpl.addSmartUpdate(UiEngineImpl.java:327) at org.zkoss.zk.ui.AbstractComponent.smartUpdate(AbstractComponent.java:1853) at org.zkoss.zk.ui.AbstractComponent.smartUpdate(AbstractComponent.java:1827) at org.zkoss.zk.ui.HtmlBasedComponent.setHflex0(HtmlBasedComponent.java:624) at org.zkoss.zk.ui.HtmlBasedComponent.setHflex(HtmlBasedComponent.java:613) at org.zkoss.zkmax.zul.GoldenPanel.setHflex(GoldenPanel.java:153) at org.zkoss.zkmax.zul.GoldenLayout.parseConfig(GoldenLayout.java:230) at org.zkoss.zkmax.zul.GoldenLayout.parseConfig(GoldenLayout.java:202) at org.zkoss.zkmax.zul.GoldenLayout.parseConfig(GoldenLayout.java:202) at org.zkoss.zkmax.zul.GoldenLayout.parseAreas(GoldenLayout.java:161) at org.zkoss.zkmax.zul.GoldenLayout.renderProperties(GoldenLayout.java:501) at org.zkoss.zk.ui.AbstractComponent.redraw(AbstractComponent.java:2170) at org.zkoss.zk.ui.AbstractComponent.redrawChildren(AbstractComponent.java:2261) at org.zkoss.zk.ui.AbstractComponent.redraw(AbstractComponent.java:2202) at org.zkoss.zk.ui.impl.UiVisualizer.redraw(UiVisualizer.java:1003) at org.zkoss.zk.ui.impl.UiVisualizer.redrawComponents(UiVisualizer.java:1017) at org.zkoss.zk.ui.impl.UiVisualizer.addResponsesForCreatedPerSiblings(UiVisualizer.java:869) at org.zkoss.zk.ui.impl.UiVisualizer.getResponses(UiVisualizer.java:733) at org.zkoss.zk.ui.impl.UiEngineImpl.getResponses(UiEngineImpl.java:1530) at org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1336)

      Expected result

      Adding a new panel while also adding the goldenlayout back to the page shouldn't cause an exception.

      Debugging info

      During rendering, goldenlayout will trigger renderProperties > parseAreas > ...

      This will eventually go to the end of the parseConfig method, where hflex/vflex values are assigned to children that do not have one yet. This is meant to happen during initalization only, not rendering in update mode. Therefore the UIVisualizer doesn't accept the hflex/vflex update due to being already rendering.

       

      Workaround

      contact support

            Assignee:
            DevChu
            Reporter:
            MDuchemin
            Votes:
            0 Vote for this issue
            Watchers:
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              Created:
              Updated:
              Resolved: