| 1710 | | DeferredCommand.addCommand(new Command() { |
| 1711 | | public void execute() { |
| 1712 | | // this may be a new set of rows due content change, |
| 1713 | | // ensure we have proper cache rows |
| 1714 | | int reactFirstRow = (int) (firstRowInViewPort - pageLength |
| 1715 | | * CACHE_REACT_RATE); |
| 1716 | | int reactLastRow = (int) (firstRowInViewPort |
| 1717 | | + pageLength + pageLength * CACHE_REACT_RATE); |
| 1718 | | if (reactFirstRow < 0) { |
| 1719 | | reactFirstRow = 0; |
| 1720 | | } |
| 1721 | | if (reactLastRow > totalRows) { |
| 1722 | | reactLastRow = totalRows - 1; |
| 1723 | | } |
| 1724 | | if (reactFirstRow < firstRendered |
| 1725 | | || reactLastRow > lastRendered) { |
| 1726 | | // re-fetch full cache area |
| 1727 | | reactFirstRow = (int) (firstRowInViewPort - pageLength |
| 1728 | | * CACHE_RATE); |
| 1729 | | reactLastRow = (int) (firstRowInViewPort |
| 1730 | | + pageLength + pageLength * CACHE_RATE); |
| 1731 | | if (reactFirstRow < 0) { |
| 1732 | | reactFirstRow = 0; |
| 1733 | | } |
| 1734 | | if (reactLastRow > totalRows) { |
| 1735 | | reactLastRow = totalRows - 1; |
| 1736 | | } |
| 1737 | | // fetch some lines before |
| 1738 | | rowRequestHandler.setReqFirstRow(reactFirstRow); |
| 1739 | | rowRequestHandler.setReqRows((int) (2 * pageLength |
| 1740 | | * CACHE_RATE + pageLength)); |
| 1741 | | rowRequestHandler.deferRowFetch(1); |
| 1742 | | } |
| 1743 | | } |
| 1744 | | }); |
| | 1710 | } |
| | 1711 | // this may be a new set of rows due content change, |
| | 1712 | // ensure we have proper cache rows |
| | 1713 | int reactFirstRow = (int) (firstRowInViewPort - pageLength |
| | 1714 | * CACHE_REACT_RATE); |
| | 1715 | int reactLastRow = (int) (firstRowInViewPort + pageLength + pageLength |
| | 1716 | * CACHE_REACT_RATE); |
| | 1717 | if (reactFirstRow < 0) { |
| | 1718 | reactFirstRow = 0; |
| | 1719 | } |
| | 1720 | if (reactLastRow > totalRows) { |
| | 1721 | reactLastRow = totalRows - 1; |
| | 1722 | } |
| | 1723 | if (lastRendered < reactLastRow) { |
| | 1724 | // get some cache rows below visible area |
| | 1725 | rowRequestHandler.setReqFirstRow(lastRendered + 1); |
| | 1726 | rowRequestHandler.setReqRows(reactLastRow - lastRendered - 1); |
| | 1727 | rowRequestHandler.deferRowFetch(1); |
| | 1728 | } else if (IScrollTable.this.tBody.getFirstRendered() > reactFirstRow) { |
| | 1729 | /* |
| | 1730 | * Branch for fetching cache above visible area. |
| | 1731 | * |
| | 1732 | * If cache needed for both before and after visible area, this |
| | 1733 | * will be rendered after-cache is reveived and rendered. So in |
| | 1734 | * some rare situations table may take two cache visits to |
| | 1735 | * server. |
| | 1736 | */ |
| | 1737 | rowRequestHandler.setReqFirstRow(reactFirstRow); |
| | 1738 | rowRequestHandler.setReqRows(firstRendered - reactFirstRow); |
| | 1739 | rowRequestHandler.deferRowFetch(1); |
