in trinidad-impl/src/main/java/org/apache/myfaces/trinidadinternal/ui/laf/base/xhtml/NavigationBarRenderer.java [692:1144]
private void _renderMultiItemNavigator(
UIXRenderingContext context,
UINode navBar,
int blockSize,
String eventKey,
String sourceKey,
String valueKey,
String sizeKey,
String partialTargetsKey,
String partialTargets
)
throws IOException
{
// get current value
Number result = (Number)navBar.getAttributeValue(context,
VALUE_ATTR);
long currentValue = (result != null)
? result.longValue()
: 1;
// get min value
result = (Number)navBar.getAttributeValue(context, MIN_VALUE_ATTR);
long minValue = (result != null)
? result.longValue()
: 1;
// get max value
result = (Number)navBar.getAttributeValue(context, MAX_VALUE_ATTR);
long maxValue = (result != null)
? result.longValue()
: MAX_VALUE_UNKNOWN;
// get destination
String destinationString = _getDestinationString(context, navBar);
// get name
String nameString = _getNameString(context, navBar);
// get form name (#1308799)
String formName = XhtmlLafUtils.getParentFormName(context);
int nextRecords = 0;
int backRecords = 0;
long backValue = 0;
long nextValue = 0;
if (blockSize > 0)
{
// determine how many records user can go forward
long lNextRecords = blockSize;
if (maxValue != MAX_VALUE_UNKNOWN)
{
// if we know the total records, align the current value to the
// start of its block. This makes the choice-rendering style
// not show extra back navigation records on the min block,
// which it would if not aligned.
/** no don't do this. see bug: 3052637
currentValue -= minValue;
currentValue /= blockSize;
currentValue *= blockSize;
currentValue += minValue;
*/
lNextRecords = maxValue - (currentValue + blockSize - 1);
}
// determine how many records user can go back
long lBackRecords = currentValue - minValue;
// trim
nextRecords = (lNextRecords > blockSize)
? blockSize
: (int) lNextRecords;
backRecords = (lBackRecords > blockSize)
? blockSize
: (int) lBackRecords;
backValue = currentValue - backRecords;
nextValue = currentValue + blockSize;
}
// calculate destinations
String prevDestination = null;
String nextDestination = null;
String prevOnClick = null;
String nextOnClick = null;
UINode leftArrow = null;
UINode rightArrow = null;
UINode leftLink = null;
UINode rightLink = null;
boolean validate = false;
boolean createSubmitButton = false;
boolean showDisabledNavigation = disabledNavigationShown(context);
boolean hasBackRecords = (backRecords > 0);
boolean hasNextRecords = (nextRecords > 0);
boolean showBackButton = hasBackRecords || showDisabledNavigation;
boolean showNextButton = hasNextRecords || showDisabledNavigation;
if (!supportsNavigation(context))
{
showBackButton = false;
showNextButton = false;
}
Object showAll = navBar.getAttributeValue(context, SHOW_ALL_ATTR);
boolean atShowAll = SHOW_ALL_ACTIVE.equals(showAll);
if (atShowAll)
{
backRecords = 0;
nextRecords = 0;
}
if (formName == null)
{
// use parameterized URLs
if (hasBackRecords && !atShowAll)
{
prevDestination = _getMultiDestinationURL(destinationString,
eventKey,
sourceKey,
nameString,
valueKey,
backValue,
sizeKey,
partialTargetsKey,
backRecords,
partialTargets);
if (partialTargets != null)
{
// If we're doing partial page rendering, we need to
// generate the _firePartialChange() onclick handler
prevOnClick = XhtmlLafUtils.getFirePartialChangeHandler(
prevDestination);
prevDestination = "#";
}
}
if (hasNextRecords && !atShowAll)
{
nextDestination = _getMultiDestinationURL(destinationString,
eventKey,
sourceKey,
nameString,
valueKey,
nextValue,
sizeKey,
partialTargetsKey,
nextRecords,
partialTargets);
if (partialTargets != null)
{
// If we're doing partial page rendering, we need to
// generate the _firePartialChange() onclick handler
nextOnClick = XhtmlLafUtils.getFirePartialChangeHandler(
nextDestination);
nextDestination = "#";
}
}
}
else
{
// determine whether we need to validate on submit
validate = _doValidate(context, navBar);
// use form submit
if (supportsScripting(context))
{
if (hasBackRecords && !atShowAll)
{
prevDestination = "#";
prevOnClick = _getMultiDestinationSubmit(context,
formName,
eventKey,
sourceKey,
nameString,
valueKey,
backValue,
sizeKey,
backRecords,
validate,
partialTargetsKey,
partialTargets);
}
if (hasNextRecords && !atShowAll)
{
nextDestination = "#";
nextOnClick = _getMultiDestinationSubmit(context,
formName,
eventKey,
sourceKey,
nameString,
valueKey,
nextValue,
sizeKey,
nextRecords,
validate,
partialTargetsKey,
partialTargets);
}
// render hidden fields to hold the form data
if (hasBackRecords || hasNextRecords)
renderHiddenFields( context,
formName,
true,
eventKey,
sourceKey,
valueKey,
sizeKey,
partialTargetsKey,
partialTargets);
}
else
{
// create submit buttons to handle submission
createSubmitButton = true;
}
}
//
// create the anonymous link nodes
//
if (createSubmitButton)
{
if (showBackButton)
{
// create back submit button bean
leftArrow = createSubmitButton(context,
_getMultiSubmitButtonText(context,
true,
backRecords),
null,
null,
formName,
validate,
eventKey,
sourceKey,
nameString,
valueKey,
backValue,
sizeKey,
backRecords);
}
// create next submit button bean
if (showNextButton)
{
rightArrow = createSubmitButton(context,
_getMultiSubmitButtonText(context,
false,
nextRecords),
null,
null,
formName,
validate,
eventKey,
sourceKey,
nameString,
valueKey,
nextValue,
sizeKey,
nextRecords);
}
}
else
{
if (showBackButton)
{
leftArrow = _createArrowImage(context,
true,
prevDestination,
prevOnClick);
leftLink = _createTextLink(context,
navBar,
true,
prevDestination,
prevOnClick,
backRecords);
}
if (showNextButton)
{
rightArrow = _createArrowImage(context,
false,
nextDestination,
nextOnClick);
rightLink = _createTextLink(context,
navBar,
false,
nextDestination,
nextOnClick,
nextRecords);
}
}
UINode rangeNode = _createRangeNode(context,
navBar,
destinationString,
nameString,
formName,
minValue,
currentValue,
blockSize,
maxValue,
eventKey,
sourceKey,
sizeKey,
partialTargetsKey,
partialTargets);
// ready to render
ResponseWriter writer = context.getResponseWriter();
boolean renderAsTable = _renderAsTable(context, navBar);
// The following strange code is part of the work around for
// bug 2275703. IE has problems re-laying out a TableBean
// after a partial page replacement. In particular, pieces
// of the table's top navigation bar, such as the previous link
// or icon, or sometimes the entire navigation bar, may shift to
// the left. In some cases, pieces of the navigation bar (the previous
// icon) may disappear during re-layout! There doesn't seem to be
// any clean way to avoid this apparent IE bug. However, we explicitly
// pareform a partial replacement of the navigation bar's previous icon
// *after* the entire table has been replaced, everything seems to lay
// out just fine.
//
// So, if we are rendering a TableBean's navigation bar with
// PPR enabled on IE, then we generate an ID for the nav bar's
// previous icon, and we add this to the list of rendered partial
// targets during the partial page render. This forces the icon
// to be replaced as part of the partial page update, and fixes
// our layout problems.
String iconID = null;
Object id = (supportsID(context) ? getID(context, navBar) : null);
TrinidadAgent agent = context.getAgent();
if ((id != null) &&
(partialTargets != null) &&
(agent.getAgentApplication() == TrinidadAgent.Application.IEXPLORER))
{
iconID = id.toString() + "-i";
}
// if we need to render standalone, create a table and table row...
if (renderAsTable)
{
writer.startElement("table", null);
renderLayoutTableAttributes(context, "0", null);
// We should always render the ID, but we particularly need
// to make sure that the ID is rendered if the NavBar is being
// used to navigate a TableBean, since we explicitly target
// TableBean NavBars when using PPR to re-render TableBeans...
renderID(context, navBar);
writer.startElement("tr", null);
}
// we only want to render the baseID, if needed, once. Then we
// render the subIDs. So we need to keep track of this.
boolean isBaseID = true;
if (leftArrow != null)
{
// We assign an id to the left arrow so that we can target it as
// a partial target to work around bug 2275703 - see note above.
if (iconID != null)
{
writer.startElement("td", null);
renderAttribute(context, "id", iconID);
// If the navigation bar that we are currently rendering
// is included in a partial page response, add the icon
// id to the list of partial targets.
PartialPageContext pprContext = context.getPartialPageContext();
if ((pprContext != null) &&
pprContext.isInsidePartialTarget())
{
pprContext.addRenderedPartialTarget(iconID);
}
}
else
{
// not in PPR mode, so just render the td (and id if not in a table
// for the Visual Editor)
_renderStartTableCell(context, navBar, writer, renderAsTable, isBaseID);
isBaseID = false;
}
writer.writeAttribute(VALIGN_ATTRIBUTE, "middle", null);
leftArrow.render(context);
writer.endElement("td");
_renderSpacerCell(context);
}
if (leftLink != null)
{
_renderStartTableCell(context, navBar, writer, renderAsTable, isBaseID);
isBaseID = false;
writer.writeAttribute(VALIGN_ATTRIBUTE, "middle", null);
writer.writeAttribute(NOWRAP_ATTRIBUTE, Boolean.TRUE, null);
leftLink.render(context);
writer.endElement("td");
_renderSpacerCell(context);
}
_renderStartTableCell(context, navBar, writer, renderAsTable, isBaseID);
isBaseID = false;
writer.writeAttribute(VALIGN_ATTRIBUTE, "middle", null);
writer.writeAttribute(NOWRAP_ATTRIBUTE, Boolean.TRUE, null);
rangeNode.render(context);
writer.endElement("td");
if (rightLink != null)
{
_renderSpacerCell(context);
_renderStartTableCell(context, navBar, writer, renderAsTable, false);
writer.writeAttribute(VALIGN_ATTRIBUTE, "middle", null);
writer.writeAttribute(NOWRAP_ATTRIBUTE, Boolean.TRUE, null);
rightLink.render(context);
writer.endElement("td");
}
if (rightArrow != null)
{
_renderSpacerCell(context);
_renderStartTableCell(context, navBar, writer, renderAsTable, false);
writer.writeAttribute(VALIGN_ATTRIBUTE, "middle", null);
rightArrow.render(context);
writer.endElement("td");
}
if (renderAsTable)
{
writer.endElement("tr");
writer.endElement("table");
}
}