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ifurnadjiev avatar ifurnadjiev commented on June 19, 2024

Yes... the row height is calculated on the client and send to the server with the next request. I can only suggest a workaround here (re-layout the editor with timerExec):


  @Override
  protected void createContents( Composite parent ) {
    parent.setLayout( null );

    Grid grid = new Grid( parent, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL );
    grid.setData( RWT.MARKUP_ENABLED, true );
    grid.setAutoHeight( true );
    grid.setBounds( 100, 100, 500, 500 );

    GridColumn actionCol = new GridColumn( grid, SWT.NONE );
    actionCol.setText( "Action" );
    actionCol.setMinimumWidth( 200 );

    GridColumn textCol = new GridColumn( grid, SWT.NONE );
    textCol.setText( "Textcolumn" );
    textCol.setWidth( 200 );

    generateItem( grid, "multi <br/> line" );
    generateItem( grid, "single line" );

    parent.getDisplay().timerExec( 100, new Runnable() {
      @Override
      public void run() {
        for( GridItem item : grid.getItems() ) {
          ( ( GridEditor )( item.getData( "editor" ) ) ).layout();
        }
      }
    } );
  }

  void generateItem( Grid grid, String txt ) {
    GridItem item = new GridItem( grid, SWT.NONE );
    item.setText( 1, txt );

    Button b = new Button( grid, SWT.PUSH );
    b.setText( "button" );

    GridEditor editor = new GridEditor( grid );
    editor.minimumWidth = 150;
    editor.minimumHeight = 10;
    editor.setEditor( b, item, 0 );

    item.setData( "editor", editor );
  }

}```

from org.eclipse.rap.

ceisserer avatar ceisserer commented on June 19, 2024

Thanks for the hint regarding the workaround.

This used to work when the row-hight was calculated immediatly on the client, but because height-calculation is now performed somehow asynchronous ( #75 ) sometimes the 100ms delay is enough and sometimes even 500ms is too short (large page, garbage collection hick-up, etc).

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ifurnadjiev avatar ifurnadjiev commented on June 19, 2024

I'm about to fix issue #75 today.

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ifurnadjiev avatar ifurnadjiev commented on June 19, 2024

The timerExec is only needed to start a server push request and trigger another UI request with updated item "height" property. The actual delay here is not important. Of course, this workaround will work after issue #75 is fixed (pull request is created).

from org.eclipse.rap.

ifurnadjiev avatar ifurnadjiev commented on June 19, 2024

About the workaround: To eliminate editor flickering when resizing it, you can create the editors in timerExec instead of calling layout.

from org.eclipse.rap.

ifurnadjiev avatar ifurnadjiev commented on June 19, 2024

Did you try the workaround? Can we close this issue as wontfix?

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