Java tutorial
/* Copyright (C) 2009 Mobile Sorcery AB This program is free software; you can redistribute it and/or modify it under the terms of the Eclipse Public License v1.0. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Eclipse Public License v1.0 for more details. You should have received a copy of the Eclipse Public License v1.0 along with this program. It is also available at http://www.eclipse.org/legal/epl-v10.html */ package com.mobilesorcery.sdk.ui.targetphone.internal; import java.text.MessageFormat; import java.util.HashMap; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.ComboViewer; import org.eclipse.jface.viewers.DoubleClickEvent; import org.eclipse.jface.viewers.IDoubleClickListener; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.viewers.ViewerFilter; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Link; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Shell; import com.mobilesorcery.sdk.core.MoSyncTool; import com.mobilesorcery.sdk.profiles.IDeviceFilter; import com.mobilesorcery.sdk.profiles.IProfile; import com.mobilesorcery.sdk.profiles.ITargetProfileProvider; import com.mobilesorcery.sdk.profiles.filter.CompositeDeviceFilter; import com.mobilesorcery.sdk.profiles.filter.EmulatorDeviceFilter; import com.mobilesorcery.sdk.profiles.ui.DeviceViewerFilter; import com.mobilesorcery.sdk.ui.Note; import com.mobilesorcery.sdk.ui.ProfileContentProvider; import com.mobilesorcery.sdk.ui.ProfileLabelProvider; import com.mobilesorcery.sdk.ui.UIUtils; import com.mobilesorcery.sdk.ui.targetphone.ITargetPhone; import com.mobilesorcery.sdk.ui.targetphone.ITargetPhoneTransport; import com.mobilesorcery.sdk.ui.targetphone.TargetPhonePlugin; public class EditDeviceListDialog extends Dialog { public class TargetDeviceLabelProvider extends LabelProvider { @Override public String getText(Object o) { ITargetPhone t = (ITargetPhone) o; ITargetPhoneTransport tt = t.getTransport(); return MessageFormat.format("{0} [{1}]", t.getName(), tt.getDescription("")); } } private ComboViewer deviceList; private TreeViewer preferredProfile; private ITargetPhone initialTargetPhone; private boolean fixedDevice; private final HashMap<ITargetPhone, IProfile> pendingChanges = new HashMap<ITargetPhone, IProfile>(); private Integer profileManagerType; public EditDeviceListDialog(Shell parentShell) { super(parentShell); } public void setInitialTargetPhone(ITargetPhone initialTargetPhone) { this.initialTargetPhone = initialTargetPhone; } @Override public Control createDialogArea(Composite parent) { getShell().setText("Select Preferred Profile"); ITargetPhone initialTargetPhone = this.initialTargetPhone == null ? TargetPhonePlugin.getDefault().getCurrentlySelectedPhone() : this.initialTargetPhone; Composite main = (Composite) super.createDialogArea(parent); Composite contents = new Composite(main, SWT.NONE); contents.setLayout(new GridLayout(1, false)); if (!fixedDevice) { deviceList = new ComboViewer(contents, SWT.BORDER | SWT.READ_ONLY); deviceList.setContentProvider(new ArrayContentProvider()); deviceList.setLabelProvider(new TargetDeviceLabelProvider()); deviceList.addSelectionChangedListener(new ISelectionChangedListener() { @Override public void selectionChanged(SelectionChangedEvent event) { updateFilter(); updateUI(null, false); } }); deviceList.getCombo().setLayoutData(new GridData(UIUtils.getDefaultFieldSize(), SWT.DEFAULT)); Link clear = new Link(contents, SWT.NONE); clear.setText("<a>Clear History</a>"); clear.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, true, false)); clear.addListener(SWT.Selection, new Listener() { @Override public void handleEvent(Event event) { clearDeviceList(getShell()); updateUI(null, true); } }); } Label instructions = new Label(contents, SWT.NONE | SWT.WRAP); String instructionMsg = "Click to select new target profile"; instructions.setText(instructionMsg); if (getProfileManagerType() == MoSyncTool.LEGACY_PROFILE_TYPE) { Note note = new Note(contents, SWT.NONE); note.setText( "NOTE:\nThe selected project uses a (legacy) device based profile database.\nThis is why this list looks different than for platform based profile databases."); note.setLayoutData(new GridData(UIUtils.getDefaultFieldSize(), SWT.DEFAULT)); } preferredProfile = new TreeViewer(contents, SWT.SINGLE | SWT.BORDER); ProfileLabelProvider labelProvider = new ProfileLabelProvider(SWT.NONE); labelProvider.setTargetProfileProvider(new ITargetProfileProvider() { @Override public IProfile getTargetProfile() { return getCurrentPreferredProfile(); } }); preferredProfile.setLabelProvider(labelProvider); final ProfileContentProvider contentProvider = new ProfileContentProvider(); preferredProfile.setContentProvider(contentProvider); preferredProfile.getControl() .setLayoutData(new GridData(UIUtils.getDefaultFieldSize(), UIUtils.getDefaultListHeight())); preferredProfile.addDoubleClickListener(new IDoubleClickListener() { @Override public void doubleClick(DoubleClickEvent event) { selectNewProfile(event.getSelection()); okPressed(); } }); preferredProfile.addSelectionChangedListener(new ISelectionChangedListener() { @Override public void selectionChanged(SelectionChangedEvent event) { selectNewProfile(event.getSelection()); } }); updateFilter(); updateUI(initialTargetPhone, true); return contents; } private void selectNewProfile(ISelection selection) { Object element = ((IStructuredSelection) selection).getFirstElement(); if (element instanceof IProfile) { IProfile profile = (IProfile) element; ITargetPhone currentTargetPhone = getSelectedTargetPhone(); if (currentTargetPhone != null) { pendingChanges.put(currentTargetPhone, profile); } updateButtons(); preferredProfile.refresh(); } } /** * Sets a fixed device for this dialog (resulting in no visible device * selector). * * @param b */ public void setFixedDevice(boolean fixedDevice) { this.fixedDevice = fixedDevice; } protected ITargetPhone getSelectedTargetPhone() { if (fixedDevice) { return initialTargetPhone; } else { ITargetPhone selectedPhone = (ITargetPhone) ((IStructuredSelection) deviceList.getSelection()) .getFirstElement(); return selectedPhone; } } protected void updateFilter() { IDeviceFilter emulatorFilter = new EmulatorDeviceFilter(EmulatorDeviceFilter.EXCLUDE_EMULATORS); ITargetPhone phone = getSelectedTargetPhone(); IDeviceFilter targetPhoneAcceptedProfiles = phone == null ? null : phone.getTransport().getAcceptedProfiles(); IDeviceFilter filter = targetPhoneAcceptedProfiles == null ? emulatorFilter : new CompositeDeviceFilter(new IDeviceFilter[] { emulatorFilter, targetPhoneAcceptedProfiles }); preferredProfile .setInput(MoSyncTool.getDefault().getProfileManager(getProfileManagerType()).getVendors(filter)); preferredProfile.setFilters(new ViewerFilter[] { new DeviceViewerFilter(filter) }); } @Override public void createButtonsForButtonBar(Composite parent) { Button okButton = createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true); createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false); updateButtons(); } protected IProfile getCurrentPreferredProfile() { IProfile profile = null; ITargetPhone selectedPhone = getSelectedTargetPhone(); if (selectedPhone != null) { profile = pendingChanges.get(selectedPhone); if (profile == null) { profile = selectedPhone.getPreferredProfile(getProfileManagerType()); } } return profile; } private int getProfileManagerType() { if (profileManagerType == null) { profileManagerType = TargetPhonePlugin.getDefault().getCurrentProfileManagerType(); } return profileManagerType; } protected void updateUI(ITargetPhone changeToTargetPhone, boolean reloadPhones) { if (!fixedDevice) { if (reloadPhones) { deviceList.setInput(TargetPhonePlugin.getDefault().getSelectedTargetPhoneHistory().toArray()); } if (changeToTargetPhone != null) { deviceList.setSelection(new StructuredSelection(changeToTargetPhone), true); } } IProfile profile = getCurrentPreferredProfile(); preferredProfile.refresh(); preferredProfile .setSelection(profile == null ? new StructuredSelection() : new StructuredSelection(profile), true); updateButtons(); } private void updateButtons() { Button okButton = getButton(IDialogConstants.OK_ID); if (okButton != null) { okButton.setEnabled(okButtonEnabled()); } } private boolean okButtonEnabled() { IProfile profile = getCurrentPreferredProfile(); return profile != null; } @Override public void okPressed() { if (okButtonEnabled()) { commitPendingChanges(); super.okPressed(); } } private void commitPendingChanges() { for (ITargetPhone phone : pendingChanges.keySet()) { IProfile newProfile = pendingChanges.get(phone); phone.setPreferredProfile(getProfileManagerType(), newProfile); } } protected void clearDeviceList(Shell parent) { if (MessageDialog.openConfirm(parent, "Are you sure?", "This will clear the list of target devices -- are you sure?")) { TargetPhonePlugin.getDefault().clearHistory(); close(); } } }