Find/replace support across multiple files.

editor/tools/plugins/com.google.dart.tools.search/src/com/google/dart/tools/search/internal/ui/text/ReplaceConfigurationPage.java

Index: editor/tools/plugins/com.google.dart.tools.search/src/com/google/dart/tools/search/internal/ui/text/ReplaceConfigurationPage.java
===================================================================
--- editor/tools/plugins/com.google.dart.tools.search/src/com/google/dart/tools/search/internal/ui/text/ReplaceConfigurationPage.java	(revision 0)
+++ editor/tools/plugins/com.google.dart.tools.search/src/com/google/dart/tools/search/internal/ui/text/ReplaceConfigurationPage.java	(revision 0)
@@ -0,0 +1,226 @@
+/*
+ * Copyright (c) 2012, the Dart project authors.
+ * 
+ * Licensed under the Eclipse Public License v1.0 (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/legal/epl-v10.html
+ * 
+ * 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.google.dart.tools.search.internal.ui.text;
+
+import com.google.dart.tools.search.internal.core.text.PatternConstructor;
+import com.google.dart.tools.search.internal.ui.ISearchHelpContextIds;
+import com.google.dart.tools.search.internal.ui.Messages;
+import com.google.dart.tools.search.internal.ui.SearchMessages;
+import com.google.dart.tools.search.internal.ui.SearchPlugin;
+
+import org.eclipse.jface.dialogs.Dialog;
+import org.eclipse.jface.dialogs.IDialogSettings;
+import org.eclipse.jface.fieldassist.ComboContentAdapter;
+import org.eclipse.jface.text.FindReplaceDocumentAdapterContentProposalProvider;
+import org.eclipse.jface.wizard.IWizardPage;
+import org.eclipse.ltk.core.refactoring.RefactoringStatus;
+import org.eclipse.ltk.ui.refactoring.UserInputWizardPage;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.ModifyEvent;
+import org.eclipse.swt.events.ModifyListener;
+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 org.eclipse.swt.widgets.Text;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.fieldassist.ContentAssistCommandAdapter;
+import org.eclipse.ui.texteditor.ITextEditorActionDefinitionIds;
+
+import java.util.ArrayList;
+import java.util.regex.PatternSyntaxException;
+
+public class ReplaceConfigurationPage extends UserInputWizardPage {
+
+  private static final String SETTINGS_GROUP = "ReplaceDialog2"; //$NON-NLS-1$
+  private static final String SETTINGS_REPLACE_WITH = "replace_with"; //$NON-NLS-1$
+
+  private final ReplaceRefactoring fReplaceRefactoring;
+
+  private Combo fTextField;
+  private Button fReplaceWithRegex;
+  private Label fStatusLabel;
+  private ContentAssistCommandAdapter fTextFieldContentAssist;
+
+  public ReplaceConfigurationPage(ReplaceRefactoring refactoring) {
+    super("ReplaceConfigurationPage"); //$NON-NLS-1$
+    fReplaceRefactoring = refactoring;
+  }
+
+  @Override
+  public void createControl(Composite parent) {
+    Composite result = new Composite(parent, SWT.NONE);
+    GridLayout layout = new GridLayout(2, false);
+    result.setLayout(layout);
+
+    Label description = new Label(result, SWT.NONE);
+    int numberOfMatches = fReplaceRefactoring.getNumberOfMatches();
+    int numberOfFiles = fReplaceRefactoring.getNumberOfFiles();
+    String[] arguments = {String.valueOf(numberOfMatches), String.valueOf(numberOfFiles)};
+    if (numberOfMatches > 1 && numberOfFiles > 1) {
+      description.setText(Messages.format(
+          SearchMessages.ReplaceConfigurationPage_description_many_in_many,
+          arguments));
+    } else if (numberOfMatches == 1) {
+      description.setText(SearchMessages.ReplaceConfigurationPage_description_one_in_one);
+    } else {
+      description.setText(Messages.format(
+          SearchMessages.ReplaceConfigurationPage_description_many_in_one,
+          arguments));
+    }
+    description.setLayoutData(new GridData(GridData.BEGINNING, GridData.CENTER, false, false, 2, 1));
+
+    FileSearchQuery query = fReplaceRefactoring.getQuery();
+
+    Label label1 = new Label(result, SWT.NONE);
+    label1.setText(SearchMessages.ReplaceConfigurationPage_replace_label);
+
+    Text clabel = new Text(result, SWT.BORDER | SWT.READ_ONLY);
+    clabel.setText(query.getSearchString());
+    GridData gd = new GridData(GridData.FILL_HORIZONTAL);
+    gd.widthHint = convertWidthInCharsToPixels(50);
+    clabel.setLayoutData(gd);
+
+    Label label2 = new Label(result, SWT.NONE);
+    label2.setText(SearchMessages.ReplaceConfigurationPage_with_label);
+
+    fTextField = new Combo(result, SWT.DROP_DOWN);
+    gd = new GridData(GridData.FILL_HORIZONTAL);
+    gd.widthHint = convertWidthInCharsToPixels(50);
+    fTextField.setLayoutData(gd);
+    fTextField.setFocus();
+    fTextField.addModifyListener(new ModifyListener() {
+      @Override
+      public void modifyText(ModifyEvent e) {
+        updateOKStatus();
+      }
+    });
+
+    IDialogSettings settings = SearchPlugin.getDefault().getDialogSettings().getSection(
+        SETTINGS_GROUP);
+    if (settings != null) {
+      String[] previousReplaceWith = settings.getArray(SETTINGS_REPLACE_WITH);
+      if (previousReplaceWith != null) {
+        fTextField.setItems(previousReplaceWith);
+        fTextField.select(0);
+      }
+    }
+
+    ComboContentAdapter contentAdapter = new ComboContentAdapter();
+    FindReplaceDocumentAdapterContentProposalProvider replaceProposer = new FindReplaceDocumentAdapterContentProposalProvider(
+        false);
+    fTextFieldContentAssist = new ContentAssistCommandAdapter(
+        fTextField,
+        contentAdapter,
+        replaceProposer,
+        ITextEditorActionDefinitionIds.CONTENT_ASSIST_PROPOSALS,
+        new char[0],
+        true);
+
+    new Label(result, SWT.NONE);
+    fReplaceWithRegex = new Button(result, SWT.CHECK);
+    fReplaceWithRegex.setText(SearchMessages.ReplaceConfigurationPage_isRegex_label);
+    fReplaceWithRegex.addSelectionListener(new SelectionAdapter() {
+      @Override
+      public void widgetSelected(SelectionEvent e) {
+        setContentAssistsEnablement(fReplaceWithRegex.getSelection());
+      }
+    });
+    if (query.isRegexSearch()) {
+      fReplaceWithRegex.setSelection(true);
+    } else {
+      fReplaceWithRegex.setSelection(false);
+      fReplaceWithRegex.setEnabled(false);
+    }
+
+    fStatusLabel = new Label(result, SWT.NULL);
+    gd = new GridData(GridData.FILL_HORIZONTAL);
+    gd.verticalAlignment = SWT.BOTTOM;
+    gd.horizontalSpan = 2;
+    fStatusLabel.setLayoutData(gd);
+
+    setContentAssistsEnablement(fReplaceWithRegex.getSelection());
+
+    setControl(result);
+
+    Dialog.applyDialogFont(result);
+
+    PlatformUI.getWorkbench().getHelpSystem().setHelp(
+        getControl(),
+        ISearchHelpContextIds.REPLACE_DIALOG);
+  }
+
+  @Override
+  public IWizardPage getNextPage() {
+    initializeRefactoring();
+    storeSettings();
+    return super.getNextPage();
+  }
+
+  @Override
+  protected boolean performFinish() {
+    initializeRefactoring();
+    storeSettings();
+    return super.performFinish();
+  }
+
+  final void updateOKStatus() {
+    RefactoringStatus status = new RefactoringStatus();
+    if (fReplaceWithRegex != null && fReplaceWithRegex.getSelection()) {
+      try {
+        PatternConstructor.interpretReplaceEscapes(
+            fReplaceWithRegex.getText(),
+            fReplaceRefactoring.getQuery().getSearchString(),
+            "\n"); //$NON-NLS-1$
+      } catch (PatternSyntaxException e) {
+        String locMessage = e.getLocalizedMessage();
+        int i = 0;
+        while (i < locMessage.length() && "\n\r".indexOf(locMessage.charAt(i)) == -1) { //$NON-NLS-1$
+          i++;
+        }
+        status.addError(locMessage.substring(0, i)); // only take first line
+      }
+    }
+    setPageComplete(status);
+  }
+
+  private void initializeRefactoring() {
+    fReplaceRefactoring.setReplaceString(fTextField.getText());
+  }
+
+  private void setContentAssistsEnablement(boolean enable) {
+    fTextFieldContentAssist.setEnabled(enable);
+  }
+
+  private void storeSettings() {
+    String[] items = fTextField.getItems();
+    ArrayList<String> history = new ArrayList<String>();
+    history.add(fTextField.getText());
+    int historySize = Math.min(items.length, 6);
+    for (int i = 0; i < historySize; i++) {
+      String curr = items[i];
+      if (!history.contains(curr)) {
+        history.add(curr);
+      }
+    }
+    IDialogSettings settings = SearchPlugin.getDefault().getDialogSettings().addNewSection(
+        SETTINGS_GROUP);
+    settings.put(SETTINGS_REPLACE_WITH, history.toArray(new String[history.size()]));
+
+  }
+}