/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.dashbuilder.displayer.client.widgets.sourcecode;
import javax.enterprise.context.Dependent;
import javax.inject.Inject;
import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.dom.client.AnchorElement;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.LIElement;
import com.google.gwt.dom.client.SpanElement;
import com.google.gwt.dom.client.Style;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.Composite;
import org.dashbuilder.displayer.client.resources.i18n.SourceCodeEditorConstants;
import org.jboss.errai.common.client.dom.Button;
import org.jboss.errai.common.client.dom.Div;
import org.jboss.errai.common.client.dom.Node;
import org.jboss.errai.common.client.dom.NodeList;
import org.jboss.errai.common.client.dom.Span;
import org.jboss.errai.common.client.dom.UnorderedList;
import org.jboss.errai.ui.shared.api.annotations.DataField;
import org.jboss.errai.ui.shared.api.annotations.EventHandler;
import org.jboss.errai.ui.shared.api.annotations.Templated;
import org.uberfire.ext.widgets.common.client.ace.AceEditor;
import org.uberfire.ext.widgets.common.client.ace.AceEditorMode;
import org.uberfire.ext.widgets.common.client.ace.AceEditorTheme;
@Dependent
@Templated
public class SourceCodeEditorView extends Composite
implements SourceCodeEditor.View {
SourceCodeEditor presenter;
boolean eventsEnabled = true;
@Inject
@DataField
Div mainDiv;
@Inject
@DataField
AceEditor aceEditor;
@Inject
@DataField
Span errorLabel;
@Inject
@DataField
Button addVariableButton;
@Inject
@DataField
UnorderedList variablesMenu;
@Override
public void init(SourceCodeEditor presenter) {
this.presenter = presenter;
aceEditor.startEditor();
aceEditor.setTheme(AceEditorTheme.CHROME);
aceEditor.setReadOnly(false);
aceEditor.addOnChangeHandler(this::onEditorChange);
aceEditor.setAutocompleteEnabled(true);
addVariableButton.setTitle(SourceCodeEditorConstants.INSTANCE.add_variable());
}
protected void onEditorChange(JavaScriptObject obj) {
if (eventsEnabled && !presenter.onSourceCodeChanged(aceEditor.getText())) {
aceEditor.setFocus();
}
}
@Override
public void clearAll() {
clearError();
removeAllChildren(variablesMenu);
aceEditor.setFocus();
}
@Override
public void edit(SourceCodeType type, String code) {
switch (type) {
case HTML:
aceEditor.setMode(AceEditorMode.HTML);
break;
case JAVASCRIPT:
aceEditor.setMode(AceEditorMode.JAVASCRIPT);
break;
}
eventsEnabled = false;
aceEditor.setText(code != null ? code : "");
aceEditor.setFocus();
eventsEnabled = true;
}
@Override
public void focus() {
aceEditor.setFocus();
}
@Override
public void error(String error) {
mainDiv.setClassName("form-group has-error");
errorLabel.setInnerHTML(error);
}
@Override
public void clearError() {
mainDiv.setClassName("form-group");
errorLabel.setInnerHTML("");
}
@Override
public void declareVariable(String var, String description) {
SpanElement span = Document.get().createSpanElement();
span.setInnerText(var);
AnchorElement anchor = Document.get().createAnchorElement();
anchor.setTitle(description);
anchor.appendChild(span);
LIElement li = Document.get().createLIElement();
li.getStyle().setCursor(Style.Cursor.POINTER);
li.appendChild(anchor);
variablesMenu.appendChild((Node) li);
Event.sinkEvents(anchor, Event.ONCLICK);
Event.setEventListener(anchor, event -> {
if(Event.ONCLICK == event.getTypeInt()) {
presenter.onVariableSelected(var);
}
});
}
@Override
public void injectVariable(String var) {
aceEditor.insertAtCursor(var);
}
private void removeAllChildren(org.jboss.errai.common.client.dom.Element element) {
NodeList nodeList = element.getChildNodes();
int lenght = nodeList.getLength();
for (int i=0; i<lenght; i++) {
element.removeChild(nodeList.item(0));
}
}
}