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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
*
* 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.android.ide.eclipse.adt.internal.editors.layout.refactoring;
import static com.android.SdkConstants.FQCN_GRID_LAYOUT;
import static com.android.SdkConstants.FQCN_RELATIVE_LAYOUT;
import static com.android.SdkConstants.GRID_LAYOUT;
import static com.android.SdkConstants.RELATIVE_LAYOUT;
import static com.android.SdkConstants.VIEW_FRAGMENT;
import static com.android.SdkConstants.VIEW_INCLUDE;
import static com.android.SdkConstants.VIEW_MERGE;
import com.android.ide.eclipse.adt.internal.editors.layout.LayoutEditorDelegate;
import com.android.ide.eclipse.adt.internal.editors.layout.descriptors.ViewElementDescriptor;
import com.android.ide.eclipse.adt.internal.editors.layout.gre.PaletteMetadataDescriptor;
import com.android.utils.Pair;
import org.eclipse.core.resources.IProject;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
class ChangeLayoutWizard extends VisualRefactoringWizard {
public ChangeLayoutWizard(ChangeLayoutRefactoring ref, LayoutEditorDelegate editor) {
super(ref, editor);
setDefaultPageTitle("Change Layout");
}
@Override
protected void addUserInputPages() {
ChangeLayoutRefactoring ref = (ChangeLayoutRefactoring) getRefactoring();
String oldType = ref.getOldType();
addPage(new InputPage(mDelegate.getEditor().getProject(), oldType));
}
/** Wizard page which inputs parameters for the {@link ChangeLayoutRefactoring} operation */
private static class InputPage extends VisualRefactoringInputPage {
private final IProject mProject;
private final String mOldType;
private Combo mTypeCombo;
private Button mFlatten;
private List<Pair<String, ViewElementDescriptor>> mClassNames;
public InputPage(IProject project, String oldType) {
super("ChangeLayoutInputPage"); //$NON-NLS-1$
mProject = project;
mOldType = oldType;
}
@Override
public void createControl(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
composite.setLayout(new GridLayout(2, false));
Label fromLabel = new Label(composite, SWT.NONE);
fromLabel.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1));
String oldTypeBase = mOldType.substring(mOldType.lastIndexOf('.') + 1);
fromLabel.setText(String.format("Change from %1$s", oldTypeBase));
Label typeLabel = new Label(composite, SWT.NONE);
typeLabel.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
typeLabel.setText("New Layout Type:");
mTypeCombo = new Combo(composite, SWT.READ_ONLY);
mTypeCombo.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
SelectionAdapter selectionListener = new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
validatePage();
// Hierarchy flattening only works for relative layout (and any future
// layouts that can also support arbitrary layouts).
String text = mTypeCombo.getText();
mFlatten.setVisible(text.equals(RELATIVE_LAYOUT) || text.equals(GRID_LAYOUT));
}
};
mTypeCombo.addSelectionListener(selectionListener);
mTypeCombo.addSelectionListener(mSelectionValidateListener);
mFlatten = new Button(composite, SWT.CHECK);
mFlatten.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER,
false, false, 2, 1));
mFlatten.setText("Flatten hierarchy");
mFlatten.addSelectionListener(selectionListener);
// Should flattening be selected by default?
mFlatten.setSelection(true);
mFlatten.addSelectionListener(mSelectionValidateListener);
// We don't exclude RelativeLayout even if the current layout is RelativeLayout,
// in case you are trying to flatten the hierarchy for a hierarchy that has a
// RelativeLayout at the root.
Set<String> exclude = new HashSet<String>();
exclude.add(VIEW_INCLUDE);
exclude.add(VIEW_MERGE);
exclude.add(VIEW_FRAGMENT);
boolean oldIsRelativeLayout = mOldType.equals(FQCN_RELATIVE_LAYOUT);
boolean oldIsGridLayout = mOldType.equals(FQCN_GRID_LAYOUT);
if (oldIsRelativeLayout || oldIsGridLayout) {
exclude.add(mOldType);
}
mClassNames = WrapInWizard.addLayouts(mProject, mOldType, mTypeCombo, exclude, false);
boolean gridLayoutAvailable = false;
for (int i = 0; i < mTypeCombo.getItemCount(); i++) {
if (mTypeCombo.getItem(i).equals(GRID_LAYOUT)) {
gridLayoutAvailable = true;
break;
}
}
mTypeCombo.select(0);
// The default should be GridLayout (if available) and if not RelativeLayout,
// if available (and not the old Type)
if (gridLayoutAvailable && !oldIsGridLayout) {
for (int i = 0; i < mTypeCombo.getItemCount(); i++) {
if (mTypeCombo.getItem(i).equals(GRID_LAYOUT)) {
mTypeCombo.select(i);
break;
}
}
} else if (!oldIsRelativeLayout) {
for (int i = 0; i < mTypeCombo.getItemCount(); i++) {
if (mTypeCombo.getItem(i).equals(RELATIVE_LAYOUT)) {
mTypeCombo.select(i);
break;
}
}
}
mFlatten.setVisible(mTypeCombo.getText().equals(RELATIVE_LAYOUT)
|| mTypeCombo.getText().equals(GRID_LAYOUT));
setControl(composite);
validatePage();
}
@Override
protected boolean validatePage() {
boolean ok = true;
int selectionIndex = mTypeCombo.getSelectionIndex();
String type = selectionIndex != -1 ? mClassNames.get(selectionIndex).getFirst() : null;
if (type == null) {
setErrorMessage("Select a layout type");
ok = false; // The user has chosen a separator
} else {
setErrorMessage(null);
// Record state
ChangeLayoutRefactoring refactoring =
(ChangeLayoutRefactoring) getRefactoring();
refactoring.setType(type);
refactoring.setFlatten(mFlatten.getSelection());
ViewElementDescriptor descriptor = mClassNames.get(selectionIndex).getSecond();
if (descriptor instanceof PaletteMetadataDescriptor) {
PaletteMetadataDescriptor paletteDescriptor =
(PaletteMetadataDescriptor) descriptor;
String initializedAttributes = paletteDescriptor.getInitializedAttributes();
if (initializedAttributes != null && initializedAttributes.length() > 0) {
refactoring.setInitializedAttributes(initializedAttributes);
}
} else {
refactoring.setInitializedAttributes(null);
}
}
setPageComplete(ok);
return ok;
}
}
}
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