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WidgetFactory.java
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WidgetFactory.java
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package org.commcare.views.widgets;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import org.commcare.adapters.ComboboxAdapter;
import org.commcare.android.javarosa.AndroidXFormExtensions;
import org.commcare.android.javarosa.IntentCallout;
import org.commcare.logic.PendingCalloutInterface;
import org.commcare.utils.AndroidArrayDataSource;
import org.javarosa.core.model.ComboboxFilterRule;
import org.javarosa.core.model.Constants;
import org.javarosa.core.model.FormDef;
import org.javarosa.core.model.FuzzyMatchFilterRule;
import org.javarosa.core.model.MultiWordFilterRule;
import org.javarosa.core.model.QuestionDataExtension;
import org.javarosa.core.model.StandardFilterRule;
import org.javarosa.core.model.condition.EvaluationContext;
import org.javarosa.core.services.locale.Localization;
import org.javarosa.form.api.FormEntryPrompt;
import org.javarosa.xform.util.CalendarUtils;
/**
* Convenience class that handles creation of widgets.
*
* @author Carl Hartung (carlhartung@gmail.com)
*/
public class WidgetFactory {
private final FormDef formDef;
private final PendingCalloutInterface pendingCalloutInterface;
public WidgetFactory(FormDef formDef, PendingCalloutInterface pendingCalloutInterface) {
this.formDef = formDef;
this.pendingCalloutInterface = pendingCalloutInterface;
}
/**
* Returns the appropriate QuestionWidget for the given FormEntryPrompt.
* @param fep prompt element to be rendered
* @param context Android context
*/
public QuestionWidget createWidgetFromPrompt(FormEntryPrompt fep, Context context) {
QuestionWidget questionWidget;
String appearance = fep.getAppearanceHint();
switch (fep.getControlType()) {
case Constants.CONTROL_INPUT:
if (appearance != null && appearance.startsWith("intent:")) {
questionWidget = buildIntentWidget(appearance, fep, context);
break;
}
case Constants.CONTROL_SECRET:
questionWidget = buildBasicWidget(appearance, fep, context);
break;
case Constants.CONTROL_IMAGE_CHOOSE:
if (appearance != null && appearance.equals("signature")) {
questionWidget = new SignatureWidget(context, fep, pendingCalloutInterface);
} else {
questionWidget = new ImageWidget(context, fep, pendingCalloutInterface);
}
break;
case Constants.CONTROL_AUDIO_CAPTURE:
if (appearance != null && appearance.contains("prototype")) {
questionWidget = new CommCareAudioWidget(context, fep, pendingCalloutInterface);
} else {
questionWidget = new AudioWidget(context, fep, pendingCalloutInterface);
}
break;
case Constants.CONTROL_VIDEO_CAPTURE:
questionWidget = new VideoWidget(context, fep, pendingCalloutInterface);
break;
case Constants.CONTROL_SELECT_ONE:
questionWidget = buildSelectOne(appearance, fep, context);
break;
case Constants.CONTROL_SELECT_MULTI:
questionWidget = buildSelectMulti(appearance, fep, context);
break;
case Constants.CONTROL_TRIGGER:
questionWidget = new TriggerWidget(context, fep, appearance);
break;
default:
questionWidget = new StringWidget(context, fep, false);
break;
}
// Apply all of the QuestionDataExtensions registered with this widget's associated
// QuestionDef to the widget
for (QuestionDataExtension extension : fep.getQuestion().getExtensions()) {
questionWidget.applyExtension(extension);
}
return questionWidget;
}
private QuestionWidget buildBasicWidget(String appearance, FormEntryPrompt fep,
Context context) {
switch (fep.getDataType()) {
case Constants.DATATYPE_DATE_TIME:
return new DateTimeWidget(context, fep);
case Constants.DATATYPE_DATE:
// Need to override CalendarUtil's month localizer
CalendarUtils.setArrayDataSource(new AndroidArrayDataSource(context));
if (appearance != null && appearance.toLowerCase().equals("ethiopian")) {
return new EthiopianDateWidget(context, fep);
} else if (appearance != null && appearance.toLowerCase().equals("nepali")) {
return new NepaliDateWidget(context, fep);
} else if(appearance != null && appearance.toLowerCase().contains("gregorian")){
return new DatePrototypeFactory().getWidget(context, fep, appearance.toLowerCase());
} else {
return new DateWidget(context, fep);
}
case Constants.DATATYPE_TIME:
return new TimeWidget(context, fep);
case Constants.DATATYPE_LONG:
return new IntegerWidget(context, fep, fep.getControlType() == Constants.CONTROL_SECRET, 2);
case Constants.DATATYPE_DECIMAL:
return new DecimalWidget(context, fep, fep.getControlType() == Constants.CONTROL_SECRET);
case Constants.DATATYPE_INTEGER:
return new IntegerWidget(context, fep, fep.getControlType() == Constants.CONTROL_SECRET, 1);
case Constants.DATATYPE_GEOPOINT:
return new GeoPointWidget(context, fep, pendingCalloutInterface);
case Constants.DATATYPE_BARCODE:
IntentCallout intentCallout = new IntentCallout("com.google.zxing.client.android.SCAN", null, null,
null, null, null, Localization.get("intent.barcode.get"),
Localization.get("intent.barcode.update"), appearance);
intentCallout.attachToForm(formDef);
Intent intent = intentCallout.generate(formDef.getEvaluationContext());
return new BarcodeWidget(context, fep, intent, intentCallout, pendingCalloutInterface);
case Constants.DATATYPE_TEXT:
if (appearance != null && (appearance.equalsIgnoreCase("numbers") || appearance.equalsIgnoreCase("numeric"))) {
return new StringNumberWidget(context, fep, fep.getControlType() == Constants.CONTROL_SECRET);
} else {
return new StringWidget(context, fep, fep.getControlType() == Constants.CONTROL_SECRET);
}
default:
return new StringWidget(context, fep, fep.getControlType() == Constants.CONTROL_SECRET);
}
}
private IntentWidget buildIntentWidget(String appearance, FormEntryPrompt fep, Context context) {
String intentId = appearance.substring("intent:".length());
IntentCallout ic = formDef.getExtension(AndroidXFormExtensions.class).getIntent(intentId, formDef);
//Hm, so what do we do if no callout is found? Error? For now, fail fast
if (ic == null) {
throw new RuntimeException("No intent callout could be found for requested id " + intentId + "!");
}
//NOTE: No path specific stuff for now
Intent i = ic.generate(new EvaluationContext(formDef.getEvaluationContext(),fep.getIndex().getReference()));
return new IntentWidget(context, fep, i, ic, pendingCalloutInterface);
}
private static QuestionWidget buildSelectOne(String appearance, FormEntryPrompt fep, Context context) {
if (appearance != null && appearance.contains("compact")) {
return buildCompactSelectOne(appearance, fep, context);
} else if (appearance != null && appearance.equals("minimal")) {
return new SpinnerWidget(context, fep);
} else if (appearance != null && appearance.contains("combobox")) {
return buildComboboxSelectOne(appearance, fep, context);
} else if (appearance != null && appearance.equals("quick")) {
return new SelectOneAutoAdvanceWidget(context, fep);
} else if (appearance != null && appearance.equals("list")) {
return new ListWidget(context, fep, true);
} else if (appearance != null && appearance.equals("list-nolabel")) {
return new ListWidget(context, fep, false);
} else if (appearance != null && appearance.equals("label")) {
return new LabelWidget(context, fep);
} else {
return new SelectOneWidget(context, fep);
}
}
private static QuestionWidget buildCompactSelectOne(String appearance,
FormEntryPrompt fep,
Context context) {
int numColumns = -1;
try {
numColumns =
Integer.parseInt(appearance.substring(appearance.indexOf('-') + 1));
} catch (Exception e) {
// Do nothing, leave numColumns as -1
Log.e("WidgetFactory", "Exception parsing numColumns");
}
if (appearance.contains("quick")) {
return new GridWidget(context, fep, numColumns, true);
} else {
return new GridWidget(context, fep, numColumns, false);
}
}
private static QuestionWidget buildComboboxSelectOne(String appearance,
FormEntryPrompt fep,
Context context) {
ComboboxFilterRule filterRule;
if (appearance.contains("multiword")) {
filterRule = new MultiWordFilterRule();
} else if (appearance.contains("fuzzy")) {
filterRule = new FuzzyMatchFilterRule();
} else {
filterRule = new StandardFilterRule();
}
return new ComboboxWidget(context, fep, filterRule);
}
private static QuestionWidget buildSelectMulti(String appearance, FormEntryPrompt fep, Context context) {
if (appearance != null && appearance.contains("compact")) {
int numColumns = -1;
try {
numColumns =
Integer.parseInt(appearance.substring(appearance.indexOf('-') + 1));
} catch (Exception e) {
// Do nothing, leave numColumns as -1
Log.e("WidgetFactory", "Exception parsing numColumns");
}
return new GridMultiWidget(context, fep, numColumns);
} else if (appearance != null && appearance.equals("minimal")) {
return new SpinnerMultiWidget(context, fep);
} else if (appearance != null && appearance.equals("list")) {
return new ListMultiWidget(context, fep, true);
} else if (appearance != null && appearance.equals("list-nolabel")) {
return new ListMultiWidget(context, fep, false);
} else if (appearance != null && appearance.equals("label")) {
return new LabelWidget(context, fep);
} else {
return new SelectMultiWidget(context, fep);
}
}
}