GridScrollExtension Add-on - Vaadin Add-on Directory

Simple extension to get, set and restore Grid scroll position in pixels and couple of other helpers.

## Features ### Remember scroll position in TabSheet Grid doesn't yet have server side getters and setters for scroll position. This extension adds those. In addition that it is able to cache the latest known scroll position. The main motivation for writing this add-on is to make Grid maintain its scroll position during Tab changes when used inside the TabSheet layout component. See demo application how it works. ### Get actual column widths There is also also getColumnWidth(..) method to get actual column widths of the Grid. ### Compensate Column resizing side effects Use getColumnResizeCompensationMode(ColumnResizeCompensationMode.RESIZE_GRID) method to get actual column widths of the Grid and setAutoResizeWidth(..) to Grid to automatically adjust width according to column widths. If automatic mode is not wanted or there is need to force Grid to resize due corner cases adjustGridWidth() API can be used. Use getColumnResizeCompensationMode(ColumnResizeCompensationMode.RESIZE_COLUMN) to auto adjust the last Column to occupy the remaining space (if any). See also: https://github.com/vaadin/framework/issues/10638 ### Get actual size of Grid getWidth(), getHeight() get actual width and height of Grid ### Events Events: GridRenderedEvent, GridResizedEvent, GridScrolledEvent and GridColumnsResizedEvent There are corresponding addXXXListener methods. GridRenderedEvent is fired when initial column calculation is ready (real column widths are available after this). Other events should be useful also in various special cases.

Online Demo
Issue Tracker
Source Code

GridScrollExtension Add-on version 1.0.0
First version for Vaadin7, (version 2.0.0 is for Vaadin8). I have tested this one only with 7.7.x, but it could work with earlier versions too.

GridScrollExtension Add-on version 2.0.0
Fixed issue in pom.xml

GridScrollExtension Add-on version 2.0.1
### Version 2.0.1 - Fixing issue #2, Server side position was off sync after setPosition(..) - Updated demo

GridScrollExtension Add-on version 1.0.1
### Version 1.0.1 - Backporting fix to issue #2 from 2.0.1: Server side position was off sync after setPosition(..) - Updated the demo

GridScrollExtension Add-on version 2.1.0
### Version 2.1.0 - Adding getColumnWidth(..) to get actual width of a given column

GridScrollExtension Add-on version 2.1.1
### Version 2.1.1 - Adding setAutoResizeWidth(..) for Grid to automatically adjust width according to column widths.

GridScrollExtension Add-on version 1.1.1
### Version 1.1.1 - Added getColumnWidth(..) to get actual width of given column - Added setAutoResizeWidth(..) to Grid automatically adjust width according to column widths.

GridScrollExtension Add-on version 2.2.0
### Version 2.2.0 - Adding events: GridRenderedEvent, GridResizedEvent, GridScrolledEvent and GridColumnsResizedEvent - Added adjustGridWidth() API to force Grid resize according to column widths - Added getWidth(), getHeight() get actual width and height of Grid (see issue #4) - Fixed a bug: Extension did not work with hidden columns properly - Fixed a bug: Vertical scroll bar adjustment was not correctly implemented

GridScrollExtension Add-on version 2.2.1
### Version 2.2.1 - Added workaround for Grid getting resized after sorting issue

GridScrollExtension Add-on version 2.2.2
### Version 2.2.2 - Fix: Size adjustment after sorting should be applied only when setAutoResizeWidth(true) - Fix: Scroll bar adjustment needs to be handled differently on IE11/Edge

GridScrollExtension Add-on version 2.3.0
### Version 2.3.0 - Added ColumnResizeCompensationMode to choose between resizing Grid and resizing last column to compensate resizing of columns.

GridScrollExtension Add-on version 2.3.1
### Version 2.3.1 - ColumnResizeCompensationMode.RESIZE_COLUMN is now applied to fill the empty space also when Grid is resized

GridScrollExtension Add-on version 2.3.2
Version 2.3.2 - Fixing issues with compensation used when Column.setMaximumWidth(..) used. Works as partial workaround for some generic Grid Column.setMaximumWidth(..) bugs

GridScrollExtension Add-on version 2.3.3
### Version 2.3.3 - Improved JavaDocs - Improved type safety - added setRestorePosition(..) to workaround issue #5

GridScrollExtension Add-on version 2.3.4
### Version 2.3.4 - Fixing typo in method set/getColumnResizeCompensationMode name - Improved JavaDocs

GridScrollExtension Add-on version 2.3.5
### Version 2.3.5 - Improved workaround to overcome issues with maximum widths of the columns, also fixes the issue #10 - Added getColumn() to GridColumnsResizedEvent

GridScrollExtension Add-on version 2.4.0
### Version 2.4.0 - Added support for hidden columns

GridScrollExtension Add-on version 2.4.1
### Version 2.4.1 - Fixing possible issue with undefined column widths

GridScrollExtension Add-on version 2.4.2
### Version 2.4.2 - Added a method to disable widths guard feature, GridScrollExtension#setWidthGuardDisabled(boolean)

GridScrollExtension Add-on version 2.4.3
### Version 2.4.3 - Fixed bug with hidden columns - Made delayed column snapping thread safe

GridScrollExtension Add-on version 2.5.0
### Version 2.5.0 - Improved robustness of getColumnWidth methods - Rebuild for not to give warnings due deprecated listener use with Vaadin 8.12.0 - Vaadin 8.12 or newer required

GridScrollExtension Add-on version 2.5.1
### Version 2.5.1 - Fix: Column widths should be reported also when ColumnResizeCompensationMode is NONE.