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.git.client.branch; import elemental.dom.Element; import elemental.html.TableCellElement; import elemental.html.TableElement; import org.eclipse.che.ide.ext.git.client.GitLocalizationConstant; import org.eclipse.che.api.git.shared.Branch; import org.eclipse.che.ide.ext.git.client.GitResources; import org.eclipse.che.ide.api.dialogs.ConfirmCallback; import org.eclipse.che.ide.api.dialogs.DialogFactory; import org.eclipse.che.ide.ui.list.SimpleList; import org.eclipse.che.ide.ui.window.Window; import org.eclipse.che.ide.util.dom.Elements; import org.vectomatic.dom.svg.ui.SVGResource; import com.google.gwt.core.client.GWT; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; 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.Button; import com.google.gwt.user.client.ui.ScrollPanel; import com.google.gwt.user.client.ui.UIObject; import com.google.gwt.user.client.ui.Widget; import com.google.inject.Inject; import com.google.inject.Singleton; import javax.validation.constraints.NotNull; import java.util.List; /** * The implementation of {@link BranchView}. * * @author Andrey Plotnikov */ @Singleton public class BranchViewImpl extends Window implements BranchView { interface BranchViewImplUiBinder extends UiBinder<Widget, BranchViewImpl> { } private static BranchViewImplUiBinder ourUiBinder = GWT.create(BranchViewImplUiBinder.class); Button btnClose; Button btnRename; Button btnDelete; Button btnCreate; Button btnCheckout; @UiField ScrollPanel branchesPanel; @UiField(provided = true) final GitResources res; @UiField(provided = true) final GitLocalizationConstant locale; private final DialogFactory dialogFactory; private SimpleList<Branch> branches; private ActionDelegate delegate; /** Create presenter. */ @Inject protected BranchViewImpl(GitResources resources, GitLocalizationConstant locale, org.eclipse.che.ide.Resources coreRes, DialogFactory dialogFactory) { this.res = resources; this.locale = locale; this.dialogFactory = dialogFactory; this.ensureDebugId("git-branches-window"); Widget widget = ourUiBinder.createAndBindUi(this); this.setTitle(locale.branchTitle()); this.setWidget(widget); TableElement breakPointsElement = Elements.createTableElement(); breakPointsElement.setAttribute("style", "width: 100%"); SimpleList.ListEventDelegate<Branch> listBranchesDelegate = new SimpleList.ListEventDelegate<Branch>() { public void onListItemClicked(Element itemElement, Branch itemData) { branches.getSelectionModel().setSelectedItem(itemData); delegate.onBranchSelected(itemData); } public void onListItemDoubleClicked(Element listItemBase, Branch itemData) { } }; SimpleList.ListItemRenderer<Branch> listBranchesRenderer = new SimpleList.ListItemRenderer<Branch>() { @Override public void render(Element itemElement, Branch itemData) { TableCellElement label = Elements.createTDElement(); SafeHtmlBuilder sb = new SafeHtmlBuilder(); sb.appendHtmlConstant("<table><tr><td>"); sb.appendHtmlConstant("<div id=\"" + UIObject.DEBUG_ID_PREFIX + "git-branches-" + itemData.getDisplayName() + "\">"); sb.appendEscaped(itemData.getDisplayName()); sb.appendHtmlConstant("</td>"); if (itemData.isActive()) { SVGResource icon = res.currentBranch(); sb.appendHtmlConstant("<td><img src=\"" + icon.getSafeUri().asString() + "\"></td>"); } sb.appendHtmlConstant("</tr></table>"); label.setInnerHTML(sb.toSafeHtml().asString()); itemElement.appendChild(label); } @Override public Element createElement() { return Elements.createTRElement(); } }; branches = SimpleList.create((SimpleList.View) breakPointsElement, coreRes.defaultSimpleListCss(), listBranchesRenderer, listBranchesDelegate); this.branchesPanel.add(branches); createButtons(); } private void createButtons() { btnClose = createButton(locale.buttonClose(), "git-branches-close", new ClickHandler() { @Override public void onClick(ClickEvent event) { delegate.onCloseClicked(); } }); addButtonToFooter(btnClose); btnRename = createButton(locale.buttonRename(), "git-branches-rename", new ClickHandler() { @Override public void onClick(ClickEvent event) { delegate.onRenameClicked(); } }); addButtonToFooter(btnRename); btnDelete = createButton(locale.buttonDelete(), "git-branches-delete", new ClickHandler() { @Override public void onClick(ClickEvent event) { onDeleteClicked(); } }); addButtonToFooter(btnDelete); btnCreate = createButton(locale.buttonCreate(), "git-branches-create", new ClickHandler() { @Override public void onClick(ClickEvent event) { delegate.onCreateClicked(); } }); addButtonToFooter(btnCreate); btnCheckout = createButton(locale.buttonCheckout(), "git-branches-checkout", new ClickHandler() { @Override public void onClick(ClickEvent event) { delegate.onCheckoutClicked(); } }); addButtonToFooter(btnCheckout); } private void onDeleteClicked() { dialogFactory.createConfirmDialog(locale.branchDelete(), locale.branchDeleteAsk(branches.getSelectionModel().getSelectedItem().getName()), new ConfirmCallback() { @Override public void accepted() { delegate.onDeleteClicked(); } }, null).show(); } @Override protected void onEnterClicked() { if (isWidgetFocused(btnClose)) { delegate.onCloseClicked(); return; } if (isWidgetFocused(btnRename)) { delegate.onRenameClicked(); return; } if (isWidgetFocused(btnDelete)) { onDeleteClicked(); return; } if (isWidgetFocused(btnCreate)) { delegate.onCreateClicked(); return; } if (isWidgetFocused(btnCheckout)) { delegate.onCheckoutClicked(); } } /** {@inheritDoc} */ @Override public void setDelegate(ActionDelegate delegate) { this.delegate = delegate; } /** {@inheritDoc} */ @Override public void setBranches(@NotNull List<Branch> branches) { this.branches.render(branches); if (this.branches.getSelectionModel().getSelectedItem() == null) { delegate.onBranchUnselected(); } } /** {@inheritDoc} */ @Override public void setEnableDeleteButton(boolean enabled) { btnDelete.setEnabled(enabled); } /** {@inheritDoc} */ @Override public void setEnableCheckoutButton(boolean enabled) { btnCheckout.setEnabled(enabled); } /** {@inheritDoc} */ @Override public void setEnableRenameButton(boolean enabled) { btnRename.setEnabled(enabled); } /** {@inheritDoc} */ @Override public void close() { this.hide(); } /** {@inheritDoc} */ @Override public void showDialogIfClosed() { if (!super.isShowing()) { this.show(btnCreate); } } }