Java tutorial
/******************************************************************************* * Copyright (c) 2012-2016 Codenvy, S.A. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Codenvy, S.A. - initial API and implementation *******************************************************************************/ package org.eclipse.che.ide.ext.debugger.client.debug; import elemental.dom.Element; import elemental.events.KeyboardEvent; import elemental.events.MouseEvent; import elemental.html.TableCellElement; import elemental.html.TableElement; import com.google.gwt.safehtml.shared.SafeHtmlBuilder; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.user.client.ui.AcceptsOneWidget; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.ScrollPanel; import com.google.gwt.user.client.ui.SimplePanel; import com.google.gwt.user.client.ui.SplitLayoutPanel; import com.google.gwt.user.client.ui.Widget; import com.google.inject.Inject; import com.google.inject.Singleton; import org.eclipse.che.commons.annotation.Nullable; import org.eclipse.che.ide.Resources; import org.eclipse.che.ide.api.parts.PartStackUIResources; import org.eclipse.che.ide.api.parts.base.BaseView; import org.eclipse.che.ide.debug.Breakpoint; import org.eclipse.che.ide.dto.DtoFactory; import org.eclipse.che.ide.ext.debugger.client.DebuggerLocalizationConstant; import org.eclipse.che.ide.ext.debugger.client.DebuggerResources; import org.eclipse.che.ide.ext.debugger.shared.Location; import org.eclipse.che.ide.ext.debugger.shared.Variable; import org.eclipse.che.ide.ui.list.SimpleList; import org.eclipse.che.ide.ui.tree.Tree; import org.eclipse.che.ide.ui.tree.TreeNodeElement; import org.eclipse.che.ide.util.dom.Elements; import org.eclipse.che.ide.util.input.SignalEvent; import org.vectomatic.dom.svg.ui.SVGResource; import javax.validation.constraints.NotNull; import java.util.List; /** * The class business logic which allow us to change visual representation of debugger panel. * * @author Andrey Plotnikov * @author Dmitry Shnurenko */ @Singleton public class DebuggerViewImpl extends BaseView<DebuggerView.ActionDelegate> implements DebuggerView { interface DebuggerViewImplUiBinder extends UiBinder<Widget, DebuggerViewImpl> { } @UiField Label vmName; @UiField Label executionPoint; @UiField SimplePanel toolbarPanel; @UiField ScrollPanel variablesPanel; @UiField ScrollPanel breakpointsPanel; @UiField(provided = true) DebuggerLocalizationConstant locale; @UiField(provided = true) Resources coreRes; @UiField(provided = true) SplitLayoutPanel splitPanel = new SplitLayoutPanel(3); private final DtoFactory dtoFactory; private final Tree<DebuggerVariable> variables; private final SimpleList<Breakpoint> breakpoints; private final DebuggerResources res; private TreeNodeElement<DebuggerVariable> selectedVariable; @Inject protected DebuggerViewImpl(PartStackUIResources partStackUIResources, DebuggerResources resources, DebuggerLocalizationConstant locale, Resources coreRes, VariableTreeNodeRenderer.Resources rendererResources, DtoFactory dtoFactory, DebuggerViewImplUiBinder uiBinder) { super(partStackUIResources); this.locale = locale; this.res = resources; this.coreRes = coreRes; this.dtoFactory = dtoFactory; setContentWidget(uiBinder.createAndBindUi(this)); TableElement breakPointsElement = Elements.createTableElement(); breakPointsElement.setAttribute("style", "width: 100%"); SimpleList.ListEventDelegate<Breakpoint> breakpointListEventDelegate = new SimpleList.ListEventDelegate<Breakpoint>() { public void onListItemClicked(Element itemElement, Breakpoint itemData) { breakpoints.getSelectionModel().setSelectedItem(itemData); } public void onListItemDoubleClicked(Element listItemBase, Breakpoint itemData) { // TODO: implement 'go to breakpoint source' feature } }; SimpleList.ListItemRenderer<Breakpoint> breakpointListItemRenderer = new SimpleList.ListItemRenderer<Breakpoint>() { @Override public void render(Element itemElement, Breakpoint itemData) { TableCellElement label = Elements.createTDElement(); SafeHtmlBuilder sb = new SafeHtmlBuilder(); // Add icon sb.appendHtmlConstant("<table><tr><td>"); SVGResource icon = res.breakpoint(); if (icon != null) { sb.appendHtmlConstant("<img src=\"" + icon.getSafeUri().asString() + "\">"); } sb.appendHtmlConstant("</td>"); // Add title sb.appendHtmlConstant("<td>"); String path = itemData.getPath(); sb.appendEscaped(path.substring(path.lastIndexOf("/") + 1) + " - [line: " + String.valueOf(itemData.getLineNumber() + 1) + "]"); sb.appendHtmlConstant("</td></tr></table>"); label.setInnerHTML(sb.toSafeHtml().asString()); itemElement.appendChild(label); } @Override public Element createElement() { return Elements.createTRElement(); } }; breakpoints = SimpleList.create((SimpleList.View) breakPointsElement, coreRes.defaultSimpleListCss(), breakpointListItemRenderer, breakpointListEventDelegate); this.breakpointsPanel.add(breakpoints); this.variables = Tree.create(rendererResources, new VariableNodeDataAdapter(), new VariableTreeNodeRenderer(rendererResources)); this.variables.setTreeEventHandler(new Tree.Listener<DebuggerVariable>() { @Override public void onNodeAction(@NotNull TreeNodeElement<DebuggerVariable> node) { } @Override public void onNodeClosed(@NotNull TreeNodeElement<DebuggerVariable> node) { selectedVariable = null; } @Override public void onNodeContextMenu(int mouseX, int mouseY, @NotNull TreeNodeElement<DebuggerVariable> node) { } @Override public void onNodeDragStart(@NotNull TreeNodeElement<DebuggerVariable> node, @NotNull MouseEvent event) { } @Override public void onNodeDragDrop(@NotNull TreeNodeElement<DebuggerVariable> node, @NotNull MouseEvent event) { } @Override public void onNodeExpanded(@NotNull final TreeNodeElement<DebuggerVariable> node) { selectedVariable = node; delegate.onSelectedVariableElement(selectedVariable.getData()); delegate.onExpandVariablesTree(); } @Override public void onNodeSelected(@NotNull TreeNodeElement<DebuggerVariable> node, @NotNull SignalEvent event) { selectedVariable = node; delegate.onSelectedVariableElement(selectedVariable.getData()); } @Override public void onRootContextMenu(int mouseX, int mouseY) { } @Override public void onRootDragDrop(@NotNull MouseEvent event) { } @Override public void onKeyboard(@NotNull KeyboardEvent event) { } }); this.variablesPanel.add(variables); minimizeButton.ensureDebugId("debugger-minimizeBut"); } /** {@inheritDoc} */ @Override public void setExecutionPoint(@Nullable Location location) { StringBuilder labelText = new StringBuilder(); if (location != null) { labelText.append("{").append(location.getClassName()).append(":").append(location.getLineNumber()) .append("} "); } executionPoint.getElement().setClassName(coreRes.coreCss().defaultFont()); executionPoint.setText(labelText.toString()); } /** {@inheritDoc} */ @Override public void setVariables(@NotNull List<DebuggerVariable> variables) { DebuggerVariable root = this.variables.getModel().getRoot(); if (root == null) { root = new DebuggerVariable(dtoFactory.createDto(Variable.class)); this.variables.getModel().setRoot(root); } root.setVariables(variables); this.variables.renderTree(0); } /** {@inheritDoc} */ @Override public void setBreakpoints(@NotNull List<Breakpoint> breakpoints) { this.breakpoints.render(breakpoints); } /** {@inheritDoc} */ @Override public void setVMName(@NotNull String name) { vmName.setText(name); } /** {@inheritDoc} */ @Override public void updateSelectedVariable() { variables.closeNode(selectedVariable); variables.expandNode(selectedVariable); } /** {@inheritDoc} */ @Override public void setVariablesIntoSelectedVariable(@NotNull List<DebuggerVariable> variables) { DebuggerVariable rootVariable = selectedVariable.getData(); rootVariable.setVariables(variables); } @Override public DebuggerVariable getSelectedDebuggerVariable() { if (selectedVariable != null) { return selectedVariable.getData(); } return null; } @Override public AcceptsOneWidget getDebuggerToolbarPanel() { return toolbarPanel; } }