Java tutorial
/* * Copyright 2000-2011 JetBrains s.r.o. * * 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 com.intellij.tasks.actions; import java.awt.Component; import java.awt.event.ActionEvent; import java.util.ArrayList; import java.util.Collections; import java.util.List; import javax.annotation.Nonnull; import javax.annotation.Nullable; import javax.swing.AbstractAction; import javax.swing.Icon; import javax.swing.JComponent; import javax.swing.KeyStroke; import com.intellij.ide.DataManager; import com.intellij.openapi.Disposable; import com.intellij.openapi.actionSystem.ActionGroup; import com.intellij.openapi.actionSystem.ActionManager; import com.intellij.openapi.actionSystem.ActionPlaces; import com.intellij.openapi.actionSystem.AnAction; import com.intellij.openapi.actionSystem.AnActionEvent; import com.intellij.openapi.actionSystem.CommonDataKeys; import com.intellij.openapi.actionSystem.DataContext; import com.intellij.openapi.actionSystem.PlatformDataKeys; import com.intellij.openapi.project.Project; import com.intellij.openapi.ui.Messages; import com.intellij.openapi.ui.playback.commands.ActionCommand; import com.intellij.openapi.ui.popup.JBPopupFactory; import com.intellij.openapi.ui.popup.ListPopupStep; import com.intellij.openapi.ui.popup.ListSeparator; import com.intellij.openapi.ui.popup.MultiSelectionListPopupStep; import com.intellij.openapi.ui.popup.PopupStep; import com.intellij.openapi.util.Disposer; import com.intellij.openapi.util.Ref; import com.intellij.openapi.vcs.changes.ChangeListManager; import com.intellij.openapi.vcs.changes.LocalChangeList; import com.intellij.tasks.ChangeListInfo; import com.intellij.tasks.LocalTask; import com.intellij.tasks.TaskManager; import com.intellij.tasks.impl.TaskManagerImpl; import com.intellij.tools.SimpleActionGroup; import com.intellij.ui.popup.list.ListPopupImpl; import com.intellij.util.NullableFunction; import com.intellij.util.containers.ContainerUtil; import consulo.awt.TargetAWT; /** * @author Dmitry Avdeev */ public class SwitchTaskAction extends BaseTaskAction { @Override public void actionPerformed(AnActionEvent e) { DataContext dataContext = e.getDataContext(); final Project project = e.getProject(); assert project != null; ListPopupImpl popup = createPopup(dataContext, null, true); popup.showCenteredInCurrentWindow(project); } public static ListPopupImpl createPopup(final DataContext dataContext, @Nullable final Runnable onDispose, boolean withTitle) { final Project project = dataContext.getData(CommonDataKeys.PROJECT); final Ref<Boolean> shiftPressed = Ref.create(false); final Ref<JComponent> componentRef = Ref.create(); List<TaskListItem> items = project == null ? Collections.<TaskListItem>emptyList() : createPopupActionGroup(project, shiftPressed, dataContext.getData(PlatformDataKeys.CONTEXT_COMPONENT)); final String title = withTitle ? "Switch to Task" : null; ListPopupStep<TaskListItem> step = new MultiSelectionListPopupStep<TaskListItem>(title, items) { @Override public PopupStep<?> onChosen(List<TaskListItem> selectedValues, boolean finalChoice) { if (finalChoice) { selectedValues.get(0).select(); return FINAL_CHOICE; } ActionGroup group = createActionsStep(selectedValues, project, shiftPressed); return JBPopupFactory.getInstance().createActionsStep(group, DataManager.getInstance().getDataContext(componentRef.get()), false, false, null, null, true); } @Override public Icon getIconFor(TaskListItem aValue) { return TargetAWT.to(aValue.getIcon()); } @Nonnull @Override public String getTextFor(TaskListItem value) { return value.getText(); } @Nullable @Override public ListSeparator getSeparatorAbove(TaskListItem value) { return value.getSeparator() == null ? null : new ListSeparator(value.getSeparator()); } @Override public boolean hasSubstep(List<TaskListItem> selectedValues) { return selectedValues.size() > 1 || selectedValues.get(0).getTask() != null; } }; final ListPopupImpl popup = (ListPopupImpl) JBPopupFactory.getInstance().createListPopup(step); if (onDispose != null) { Disposer.register(popup, new Disposable() { @Override public void dispose() { onDispose.run(); } }); } componentRef.set(popup.getComponent()); if (items.size() <= 2) { return popup; } popup.setAdText("Press SHIFT to merge with current context"); popup.registerAction("shiftPressed", KeyStroke.getKeyStroke("shift pressed SHIFT"), new AbstractAction() { public void actionPerformed(ActionEvent e) { shiftPressed.set(true); popup.setCaption("Merge with Current Context"); } }); popup.registerAction("shiftReleased", KeyStroke.getKeyStroke("released SHIFT"), new AbstractAction() { public void actionPerformed(ActionEvent e) { shiftPressed.set(false); popup.setCaption("Switch to Task"); } }); popup.registerAction("invoke", KeyStroke.getKeyStroke("shift ENTER"), new AbstractAction() { public void actionPerformed(ActionEvent e) { popup.handleSelect(true); } }); return popup; } private static ActionGroup createActionsStep(final List<TaskListItem> tasks, final Project project, final Ref<Boolean> shiftPressed) { SimpleActionGroup group = new SimpleActionGroup(); final TaskManager manager = TaskManager.getManager(project); final LocalTask task = tasks.get(0).getTask(); if (tasks.size() == 1 && task != null) { group.add(new AnAction("&Switch to") { public void actionPerformed(AnActionEvent e) { manager.activateTask(task, !shiftPressed.get()); } }); } final AnAction remove = new AnAction("&Remove") { @Override public void actionPerformed(AnActionEvent e) { for (TaskListItem item : tasks) { LocalTask itemTask = item.getTask(); if (itemTask != null) { removeTask(project, itemTask, manager); } } } }; group.add(remove); return group; } @Nonnull private static List<TaskListItem> createPopupActionGroup(@Nonnull final Project project, final Ref<Boolean> shiftPressed, final Component contextComponent) { List<TaskListItem> group = new ArrayList<TaskListItem>(); final AnAction action = ActionManager.getInstance().getAction(GotoTaskAction.ID); assert action instanceof GotoTaskAction; final GotoTaskAction gotoTaskAction = (GotoTaskAction) action; group.add(new TaskListItem(gotoTaskAction.getTemplatePresentation().getText(), TargetAWT.from(gotoTaskAction.getTemplatePresentation().getIcon())) { @Override void select() { ActionManager.getInstance().tryToExecute(gotoTaskAction, ActionCommand.getInputEvent(GotoTaskAction.ID), contextComponent, ActionPlaces.UNKNOWN, false); } }); final TaskManager manager = TaskManager.getManager(project); LocalTask activeTask = manager.getActiveTask(); List<LocalTask> localTasks = manager.getLocalTasks(); Collections.sort(localTasks, TaskManagerImpl.TASK_UPDATE_COMPARATOR); ArrayList<LocalTask> temp = new ArrayList<LocalTask>(); for (final LocalTask task : localTasks) { if (task == activeTask) { continue; } if (manager.isLocallyClosed(task)) { temp.add(task); continue; } group.add(new TaskListItem(task, group.size() == 1 ? "" : null, false) { @Override void select() { manager.activateTask(task, !shiftPressed.get()); } }); } if (!temp.isEmpty()) { for (int i = 0, tempSize = temp.size(); i < Math.min(tempSize, 15); i++) { final LocalTask task = temp.get(i); group.add(new TaskListItem(task, i == 0 ? "Recently Closed Tasks" : null, true) { @Override void select() { manager.activateTask(task, !shiftPressed.get()); } }); } } return group; } public static void removeTask(final @Nonnull Project project, LocalTask task, TaskManager manager) { if (task.isDefault()) { Messages.showInfoMessage(project, "Default task cannot be removed", "Cannot Remove"); } else { List<ChangeListInfo> infos = task.getChangeLists(); List<LocalChangeList> lists = ContainerUtil.mapNotNull(infos, new NullableFunction<ChangeListInfo, LocalChangeList>() { public LocalChangeList fun(ChangeListInfo changeListInfo) { LocalChangeList changeList = ChangeListManager.getInstance(project) .getChangeList(changeListInfo.id); return changeList != null && !changeList.isDefault() ? changeList : null; } }); boolean removeIt = true; l: for (LocalChangeList list : lists) { if (!list.getChanges().isEmpty()) { int result = Messages.showYesNoCancelDialog(project, "Changelist associated with '" + task.getSummary() + "' is not empty.\n" + "Do you want to remove it and move the changes to the active changelist?", "Changelist Not Empty", Messages.getWarningIcon()); switch (result) { case 0: break l; case 1: removeIt = false; break; default: return; } } } if (removeIt) { for (LocalChangeList list : lists) { ChangeListManager.getInstance(project).removeChangeList(list); } } manager.removeTask(task); } } }