Java tutorial
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.waveprotocol.wave.client.editor.debug; import com.google.gwt.dom.client.Style.Unit; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.event.logical.shared.ValueChangeEvent; import com.google.gwt.event.logical.shared.ValueChangeHandler; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.CheckBox; import com.google.gwt.user.client.ui.HTML; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.Panel; import com.google.gwt.user.client.ui.TextArea; import com.google.gwt.user.client.ui.VerticalPanel; import com.google.gwt.user.client.ui.Widget; import org.waveprotocol.wave.client.editor.EditorImpl; import org.waveprotocol.wave.client.editor.EditorUpdateEventImpl; import org.waveprotocol.wave.client.editor.content.ContentDocument; import org.waveprotocol.wave.client.editor.content.ContentRange; import org.waveprotocol.wave.client.editor.event.EditorEventHandler; import org.waveprotocol.wave.model.document.util.DocProviders; import org.waveprotocol.wave.model.document.util.XmlStringBuilder; import org.waveprotocol.wave.model.util.ReadableStringSet.Proc; /** * Controls a selection of debug options that manipulate editor behaviour, * and can be changed from a debug panel. * * @author patcoleman@google.com (Pat Coleman) */ public class DebugOptions { private final HorizontalPanel panel = new HorizontalPanel(); private final VerticalPanel optionsPanel = new VerticalPanel(); private final VerticalPanel updateEventsPanel = new VerticalPanel(); private final EditorImpl editor; /** * Constructs the options and builds a widget to display them * @param editorImpl The editor the options are for */ DebugOptions(final EditorImpl editorImpl) { this.editor = editorImpl; final CursorDisplay cursorDisplay = new CursorDisplay(editorImpl); addCheckBox("Editor on", !editorImpl.debugIsDisabled(), new ValueChangeHandler<Boolean>() { public void onValueChange(ValueChangeEvent<Boolean> event) { editorImpl.debugSetDisabled(!event.getValue()); } }); addCheckBox("Receive/send ops", editorImpl.debugIsConnected(), new ValueChangeHandler<Boolean>() { @Override public void onValueChange(ValueChangeEvent<Boolean> event) { editorImpl.debugConnectOpSinks(event.getValue()); } }); addCheckBox("Cancel unsafe combos", EditorEventHandler.getCancelUnsafeCombos(), new ValueChangeHandler<Boolean>() { public void onValueChange(ValueChangeEvent<Boolean> event) { EditorEventHandler.setCancelUnsafeCombos(event.getValue()); } }); addCheckBox("Show xy-selection cursor", cursorDisplay.getEnabled(), new ValueChangeHandler<Boolean>() { public void onValueChange(ValueChangeEvent<Boolean> event) { cursorDisplay.setEnabled(event.getValue()); } }); addCheckBox("Check local ops", ContentDocument.validateLocalOps, new ValueChangeHandler<Boolean>() { @Override public void onValueChange(ValueChangeEvent<Boolean> event) { ContentDocument.validateLocalOps = event.getValue(); } }); optionsPanel.add(new HTML("<br/>Permitted update event listeners:")); optionsPanel.add(updateEventsPanel); updateEventsPanel.getElement().getStyle().setPaddingLeft(10, Unit.PX); panel.add(optionsPanel); VerticalPanel rhs = new VerticalPanel(); rhs.add(new HTML("XML to insert at current cursor location.<br/>" + "Ensure there is no extra whitespace anywhere between your tags!")); final TextArea contentInput = new TextArea(); contentInput.setVisibleLines(10); contentInput.setCharacterWidth(40); rhs.add(contentInput); final Label errorLabel = new Label(""); Button insertXmlButton = new Button("Insert"); insertXmlButton.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { editor.focus(true); ContentRange selection = editor.getSelectionHelper().getOrderedSelectionPoints(); if (selection == null) { errorLabel.setText("Don't know where to insert this"); return; } XmlStringBuilder xml; try { xml = XmlStringBuilder.innerXml(DocProviders.POJO.parse(contentInput.getText())); } catch (RuntimeException e) { errorLabel.setText("Ill formed XML"); return; } try { editor.getDocument().insertXml(selection.getSecond(), xml); errorLabel.setText(""); } catch (RuntimeException e) { errorLabel.setText("Invalid XML: " + e.getMessage()); } } }); rhs.add(errorLabel); rhs.add(insertXmlButton); panel.add(rhs); } public void refresh() { final EditorUpdateEventImpl updates = editor.debugGetUpdateEventImpl(); updateEventsPanel.clear(); updates.debugGetAllUpdateEventNames().each(new Proc() { @Override public void apply(final String element) { addCheckBox(updateEventsPanel, element, !updates.debugGetSuppressedUpdateEventNames().contains(element), new ValueChangeHandler<Boolean>() { @Override public void onValueChange(ValueChangeEvent<Boolean> event) { updates.debugSuppressUpdateEvent(element, !event.getValue()); } }); } }); } public Widget getWidget() { return panel; } private void addCheckBox(String caption, boolean initValue, ValueChangeHandler<Boolean> handler) { addCheckBox(optionsPanel, caption, initValue, handler); } private void addCheckBox(Panel panel, String caption, boolean initValue, ValueChangeHandler<Boolean> handler) { CheckBox box = new CheckBox(caption); box.setValue(initValue); box.addValueChangeHandler(handler); panel.add(box); } }