Author: tim
Date: Thu Oct 7 08:49:56 2004
New Revision: 53992
Modified:
cocoon/trunk/src/blocks/forms/java/org/apache/cocoon/forms/transformation/EffectWidgetReplacingPipe.java
Log:
Add part of the choose/when functionality to the cforms template
transformer, and change widget id lookups to widget path lookups.
Modified:
cocoon/trunk/src/blocks/forms/java/org/apache/cocoon/forms/transformation/EffectWidgetReplacingPipe.java
==============================================================================
---
cocoon/trunk/src/blocks/forms/java/org/apache/cocoon/forms/transformation/EffectWidgetReplacingPipe.java
(original)
+++
cocoon/trunk/src/blocks/forms/java/org/apache/cocoon/forms/transformation/EffectWidgetReplacingPipe.java
Thu Oct 7 08:49:56 2004
@@ -19,6 +19,7 @@
import org.apache.cocoon.forms.Constants;
import org.apache.cocoon.forms.formmodel.AggregateField;
import org.apache.cocoon.forms.formmodel.ContainerWidget;
+import org.apache.cocoon.forms.formmodel.DataWidget;
import org.apache.cocoon.forms.formmodel.Repeater;
import org.apache.cocoon.forms.formmodel.Struct;
import org.apache.cocoon.forms.formmodel.Union;
@@ -80,6 +81,7 @@
private static final String AGGREGATE_WIDGET = "aggregate-widget";
private static final String STRUCT = "struct";
private static final String STYLING_EL = "styling";
+ private static final String CHOOSE = "choose";
private static final String UNION = "union";
private static final String VALIDATION_ERROR = "validation-error";
private static final String WIDGET_LABEL = "widget-label";
@@ -87,7 +89,8 @@
protected Widget contextWidget;
protected LinkedList contextWidgets;
- protected String widgetId;
+ protected LinkedList chooseWidgets;
+ protected String widgetPath;
protected Widget widget;
protected Map classes;
@@ -101,6 +104,8 @@
private final RepeaterWidgetHandler repeaterWidgetHandler = new
RepeaterWidgetHandler();
private final AggregateWidgetHandler aggregateWidgetHandler = new
AggregateWidgetHandler();
private final StructHandler structHandler = new
StructHandler();
+ private final ChooseHandler chooseHandler = new
ChooseHandler();
+ private final ChoosePassThruHandler choosePassThruHandler = new
ChoosePassThruHandler();
private final UnionHandler unionHandler = new
UnionHandler();
private final UnionPassThruHandler unionPassThruHandler = new
UnionPassThruHandler();
private final NewHandler newHandler = new
NewHandler();
@@ -136,6 +141,7 @@
templates.put(REPEATER_SIZE, repeaterSizeHandler);
templates.put(REPEATER_WIDGET_LABEL, repeaterWidgetLabelHandler);
templates.put(STRUCT, structHandler);
+ templates.put(CHOOSE, chooseHandler);
templates.put(UNION, unionHandler);
templates.put(NEW, newHandler);
templates.put(CLASS, classHandler);
@@ -156,6 +162,7 @@
// Initialize widget related variables
contextWidgets = new LinkedList();
+ chooseWidgets = new LinkedList();
classes = new HashMap();
}
@@ -167,22 +174,30 @@
return widgetId;
}
- protected Widget getWidget(String widgetId) throws SAXException {
- Widget widget = ((ContainerWidget)contextWidget).getChild(widgetId);
+ protected String getWidgetPath(Attributes attributes) throws SAXException {
+ String widgetPath = attributes.getValue("path");
+ if (widgetPath == null || widgetPath.equals("")) {
+ throwSAXException("Missing required widget \"path\" attribute.");
+ }
+ return widgetPath;
+ }
+
+ protected Widget getWidget(String widgetPath) throws SAXException {
+ Widget widget =
((ContainerWidget)contextWidget).lookupWidget(widgetPath);
if (widget == null) {
if (contextWidget.getRequestParameterName().equals("")) {
- throwSAXException("Widget with id \"" + widgetId + "\" does
not exist in the form container.");
+ throwSAXException("No widget exists at the path \"" +
widgetPath + "\", relative to the form container.");
} else {
- throwSAXException("Widget with id \"" + widgetId + "\" does
not exist in the container \"" +
- contextWidget.getRequestParameterName() +
"\"");
+ throwSAXException("No widget exists at the path \"" +
widgetPath + "\", relative to the container \"" +
+ contextWidget.getRequestParameterName() +
"\".");
}
}
return widget;
}
protected void getRepeaterWidget(String handler) throws SAXException {
- widgetId = getWidgetId(input.attrs);
- widget = getWidget(widgetId);
+ widgetPath = getWidgetId(input.attrs);
+ widget = getWidget(widgetPath);
if (!(widget instanceof Repeater)) {
throwWrongWidgetType("RepeaterWidgetLabelHandler", input.loc,
"repeater");
}
@@ -350,8 +365,8 @@
public Handler process() throws SAXException {
switch (event) {
case EVENT_START_ELEMENT:
- widgetId = getWidgetId(input.attrs);
- Widget widget = getWidget(widgetId);
+ widgetPath = getWidgetId(input.attrs);
+ Widget widget = getWidget(widgetPath);
widget.generateLabel(getContentHandler());
widget = null;
return this;
@@ -370,8 +385,8 @@
public Handler process() throws SAXException {
switch (event) {
case EVENT_START_ELEMENT:
- widgetId = getWidgetId(input.attrs);
- widget = getWidget(widgetId);
+ widgetPath = getWidgetId(input.attrs);
+ widget = getWidget(widgetPath);
gotStylingElement = false;
out.bufferInit();
return this;
@@ -423,10 +438,10 @@
switch(event) {
case EVENT_START_ELEMENT:
getRepeaterWidget("RepeaterWidgetLabelHandler");
- String widgetId = input.attrs.getValue("widget-id");
- if (widgetId == null || widgetId.equals(""))
+ String widgetPath = input.attrs.getValue("widget-id");
+ if (widgetPath == null || widgetPath.equals(""))
throwSAXException("Element repeater-widget-label missing
required widget-id attribute.");
- ((Repeater)widget).generateWidgetLabel(widgetId,
getContentHandler());
+ ((Repeater)widget).generateWidgetLabel(widgetPath,
getContentHandler());
widget = null;
return this;
case EVENT_ELEMENT:
@@ -476,8 +491,8 @@
public Handler process() throws SAXException {
switch(event) {
case EVENT_START_ELEMENT:
- widgetId = getWidgetId(input.attrs);
- widget = getWidget(widgetId);
+ widgetPath = getWidgetId(input.attrs);
+ widget = getWidget(widgetPath);
if (!(widget instanceof AggregateField)) {
throwWrongWidgetType("AggregateWidgetHandler", input.loc,
"aggregate");
}
@@ -500,8 +515,8 @@
public Handler process() throws SAXException {
switch(event) {
case EVENT_START_ELEMENT:
- widgetId = getWidgetId(input.attrs);
- widget = getWidget(widgetId);
+ widgetPath = getWidgetId(input.attrs);
+ widget = getWidget(widgetPath);
if (!(widget instanceof Struct)) {
throwWrongWidgetType("StructHandler", input.loc, "struct");
}
@@ -524,12 +539,89 @@
}
}
+ protected class ChooseHandler extends Handler {
+ public Handler process() throws SAXException {
+ switch(event) {
+ case EVENT_START_ELEMENT:
+ widgetPath = getWidgetPath(input.attrs);
+ widget = getWidget(widgetPath);
+ // TODO: Should instead check for datatype convertable to
String.
+ if (!(widget instanceof DataWidget)) {
+ throwWrongWidgetType("ChooseHandler", input.loc,
"DataWidget");
+ }
+ contextWidgets.addFirst(contextWidget);
+ // Choose does not change the context widget like Union does:
+ // contextWidget = widget;
+ chooseWidgets.addFirst(widget);
+ out.element(Constants.INSTANCE_PREFIX, Constants.INSTANCE_NS,
"choose");
+ out.startElement();
+ return this;
+ case EVENT_ELEMENT:
+ if (Constants.TEMPLATE_NS.equals(input.uri)) {
+ if ("when".equals(input.loc)) {
+ String testValue = input.attrs.getValue("value");
+ if (testValue == null) throwSAXException("Element
\"when\" missing required \"value\" attribute.");
+ String value =
(String)((Widget)chooseWidgets.get(0)).getValue();
+ if (testValue.equals(value)) {
+ return nestedHandler;
+ } else {
+ return nullHandler;
+ }
+ } else if (FORM_TEMPLATE_EL.equals(input.loc)) {
+ throwSAXException("Element \"form-template\" must not
be nested.");
+ } else {
+ throwSAXException("Unrecognized template: " +
input.loc);
+ }
+ } else {
+ return choosePassThruHandler;
+ }
+ case EVENT_END_ELEMENT:
+ out.endElement();
+ chooseWidgets.removeFirst();
+ contextWidget = (Widget)contextWidgets.removeFirst();
+ return this;
+ default:
+ out.copy();
+ return this;
+ }
+ }
+ }
+
+ protected class ChoosePassThruHandler extends Handler {
+ public Handler process() throws SAXException {
+ switch(event) {
+ case EVENT_ELEMENT:
+ if (Constants.TEMPLATE_NS.equals(input.uri)) {
+ if ("when".equals(input.loc)) {
+ String testValue = input.attrs.getValue("value");
+ if (testValue == null) throwSAXException("Element
\"when\" missing required \"value\" attribute.");
+ String value =
(String)((Widget)chooseWidgets.get(0)).getValue();
+ if (testValue.equals(value)) {
+ return nestedHandler;
+ } else {
+ return nullHandler;
+ }
+ } else if (FORM_TEMPLATE_EL.equals(input.loc)) {
+ throwSAXException("Element \"form-template\" must not
be nested.");
+ } else {
+ throwSAXException("Unrecognized template: " +
input.loc);
+ }
+ } else {
+ return this;
+ }
+ default:
+ out.copy();
+ return this;
+ }
+ }
+ }
+
protected class UnionHandler extends Handler {
public Handler process() throws SAXException {
switch(event) {
case EVENT_START_ELEMENT:
- widgetId = getWidgetId(input.attrs);
- widget = getWidget(widgetId);
+ widgetPath = getWidgetId(input.attrs);
+ widget = getWidget(widgetPath);
if (!(widget instanceof Union)) {
throwWrongWidgetType("UnionHandler", input.loc, "union");
}
@@ -598,10 +690,10 @@
public Handler process() throws SAXException {
switch (event) {
case EVENT_START_ELEMENT:
- widgetId = getWidgetId(input.attrs);
- SaxBuffer classBuffer = (SaxBuffer)classes.get(widgetId);
+ widgetPath = getWidgetId(input.attrs);
+ SaxBuffer classBuffer = (SaxBuffer)classes.get(widgetPath);
if (classBuffer == null) {
- throwSAXException("New: Class \"" + widgetId + "\" does
not exist.");
+ throwSAXException("New: Class \"" + widgetPath + "\" does
not exist.");
}
handlers.addFirst(handler);
handler = nestedHandler;
@@ -623,13 +715,13 @@
public Handler process() throws SAXException {
switch (event) {
case EVENT_START_ELEMENT:
- widgetId = getWidgetId(input.attrs);
+ widgetPath = getWidgetId(input.attrs);
out.bufferInit();
return this;
case EVENT_ELEMENT:
return bufferHandler;
case EVENT_END_ELEMENT:
- classes.put(widgetId, out.getBuffer());
+ classes.put(widgetPath, out.getBuffer());
out.bufferFini();
return this;
default:
@@ -716,8 +808,8 @@
public Handler process() throws SAXException {
switch (event) {
case EVENT_START_ELEMENT:
- widgetId = getWidgetId(input.attrs);
- widget = getWidget(widgetId);
+ widgetPath = getWidgetId(input.attrs);
+ widget = getWidget(widgetPath);
out.bufferInit();
return this;
@@ -812,7 +904,7 @@
super.recycle();
this.contextWidget = null;
this.widget = null;
- this.widgetId = null;
+ this.widgetPath = null;
this.pipeContext = null;
this.namespacePrefix = null;
}
