| /* | |
| * (c) Copyright IBM Corp. 2000, 2001. | |
| * All Rights Reserved. | |
| */ | |
| package org.eclipse.patch; | |
| import java.io.*; | |
| import org.eclipse.swt.SWT; | |
| import org.eclipse.swt.events.*; | |
| import org.eclipse.swt.layout.*; | |
| import org.eclipse.swt.widgets.*; | |
| import org.eclipse.swt.dnd.*; | |
| import org.eclipse.jface.dialogs.*; | |
| import org.eclipse.jface.wizard.*; | |
| import org.eclipse.ui.help.WorkbenchHelp; | |
| import org.eclipse.ui.help.DialogPageContextComputer; | |
| import org.eclipse.core.runtime.*; | |
| import org.eclipse.compare.internal.Utilities; | |
| /* package */ class InputPatchPage extends WizardPage { | |
| // constants | |
| protected static final int SIZING_TEXT_FIELD_WIDTH= 250; | |
| protected static final int COMBO_HISTORY_LENGTH= 5; | |
| // dialog store id constants | |
| private final static String PAGE_NAME= "PatchWizardPage"; //$NON-NLS-1$ | |
| private final static String STORE_PATCH_FILE_ID= PAGE_NAME + ".PATCH_FILE"; //$NON-NLS-1$ | |
| private final static String STORE_PATCH_FILES_ID= PAGE_NAME + ".PATCH_FILES"; //$NON-NLS-1$ | |
| private final static String STORE_USE_CLIPBOARD_ID= PAGE_NAME + ".USE_CLIPBOARD"; //$NON-NLS-1$ | |
| // help IDs | |
| private final static String PATCH_HELP_CONTEXT_ID= "PatchWizardHelpId"; | |
| // SWT widgets | |
| private Button fUseClipboardButton; | |
| private Combo fPatchFileNameField; | |
| private Button fPatchFileBrowseButton; | |
| private Button fUsePatchFileButton; | |
| private Composite fPatchFileGroup; | |
| private PatchWizard fPatchWizard; | |
| InputPatchPage(PatchWizard pw) { | |
| super("Select Patch Input", "Select Patch Input", null); | |
| fPatchWizard= pw; | |
| } | |
| /** | |
| * Get a path from the supplied text widget. | |
| * @return org.eclipse.core.runtime.IPath | |
| */ | |
| protected IPath getPathFromText(Text textField) { | |
| return (new Path(textField.getText())).makeAbsolute(); | |
| } | |
| /* package */ String getPatchName() { | |
| if (getUseClipboard()) | |
| return "Clipboard"; | |
| return getPatchFilePath(); | |
| } | |
| public void createControl(Composite parent) { | |
| Composite composite= new Composite(parent, SWT.NULL); | |
| composite.setLayout(new GridLayout()); | |
| composite.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL)); | |
| setControl(composite); | |
| fUsePatchFileButton= new Button(composite, SWT.RADIO); | |
| fUsePatchFileButton.setText("Select Patch File"); | |
| fPatchFileGroup= createPatchFileGroup(composite); | |
| new Label(composite, SWT.NONE); // a spacer | |
| fUseClipboardButton= new Button(composite, SWT.RADIO); | |
| fUseClipboardButton.setText("Extract Patch from Clipboard"); | |
| // set up handlers | |
| fUsePatchFileButton.addSelectionListener( | |
| new SelectionAdapter() { | |
| public void widgetSelected(SelectionEvent e) { | |
| Utilities.setEnableComposite(fPatchFileGroup, !getUseClipboard()); | |
| updateWidgetEnablements(); | |
| } | |
| } | |
| ); | |
| restoreWidgetValues(); | |
| updateWidgetEnablements(); | |
| //updatePageCompletion(); | |
| WorkbenchHelp.setHelp(composite, new DialogPageContextComputer(this, PATCH_HELP_CONTEXT_ID)); | |
| } | |
| /* (non-JavaDoc) | |
| * Method declared in IWizardPage. | |
| */ | |
| public IWizardPage getNextPage() { | |
| if (true) { | |
| Diff[] diffs= null; | |
| Reader reader= null; | |
| if (getUseClipboard()) { | |
| Control c= getControl(); | |
| if (c != null) { | |
| Clipboard clipboard= new Clipboard(c.getDisplay()); | |
| Object o= clipboard.getContents(TextTransfer.getInstance()); | |
| if (o instanceof String) | |
| reader= new StringReader((String)o); | |
| } | |
| } else { | |
| String patchFilePath= getPatchFilePath(); | |
| if (patchFilePath != null) { | |
| try { | |
| reader= new FileReader(patchFilePath); | |
| } catch (FileNotFoundException ex) { | |
| MessageDialog.openError(null, "Error", "Patch file not found: " + patchFilePath); | |
| } | |
| } | |
| } | |
| if (reader != null) { | |
| PatchParser pp= new PatchParser(); | |
| try { | |
| diffs= pp.parse(new BufferedReader(reader)); | |
| } catch (IOException ex) { | |
| MessageDialog.openError(null, "Error", "Error while parsing patch"); | |
| } | |
| try { | |
| reader.close(); | |
| } catch (IOException x) { | |
| } | |
| } | |
| if (diffs == null || diffs.length == 0) { | |
| MessageDialog.openError(null, "Error", "No diffs found in " + getPatchName()); | |
| return this; | |
| } | |
| IWizard w= getWizard(); | |
| if (w instanceof PatchWizard) { | |
| PatchWizard pw= (PatchWizard) w; | |
| pw.setDiffs(diffs); | |
| } | |
| } | |
| return super.getNextPage(); | |
| } | |
| /* (non-JavaDoc) | |
| * Method declared in IWizardPage. | |
| */ | |
| public boolean canFlipToNextPage() { | |
| if (true) { | |
| // we can't call getNextPage to determine if flipping is allowed since computing | |
| // the next page is quite expensive (checking preconditions and creating a | |
| // change). So we say yes if the page is complete. | |
| return isPageComplete(); | |
| } else { | |
| return super.canFlipToNextPage(); | |
| } | |
| } | |
| /** | |
| * Create the group for selecting the patch file | |
| */ | |
| private Composite createPatchFileGroup(Composite parent) { | |
| Composite sourceContainerGroup= new Composite(parent, SWT.NONE); | |
| GridLayout layout= new GridLayout(); | |
| layout.numColumns= 3; | |
| sourceContainerGroup.setLayout(layout); | |
| sourceContainerGroup.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL)); | |
| new Label(sourceContainerGroup, SWT.NONE).setText("Patch File:"); | |
| // source name entry field | |
| fPatchFileNameField= new Combo(sourceContainerGroup, SWT.BORDER); | |
| GridData data= new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL); | |
| data.widthHint= SIZING_TEXT_FIELD_WIDTH; | |
| fPatchFileNameField.setLayoutData(data); | |
| fPatchFileNameField.addSelectionListener( | |
| new SelectionAdapter() { | |
| public void widgetSelected(SelectionEvent e) { | |
| setSourceName(fPatchFileNameField.getText()); | |
| //Update enablements when this is selected | |
| updateWidgetEnablements(); | |
| } | |
| } | |
| ); | |
| fPatchFileNameField.addModifyListener( | |
| new ModifyListener() { | |
| public void modifyText(ModifyEvent e) { | |
| updateWidgetEnablements(); | |
| } | |
| } | |
| ); | |
| // patch file browse button | |
| fPatchFileBrowseButton= new Button(sourceContainerGroup, SWT.PUSH); | |
| fPatchFileBrowseButton.setText("Browse..."); | |
| fPatchFileBrowseButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL)); | |
| //SWTUtil.setButtonDimensionHint(fDestinationBrowseButton); | |
| fPatchFileBrowseButton.addSelectionListener( | |
| new SelectionAdapter() { | |
| public void widgetSelected(SelectionEvent e) { | |
| handlePatchFileBrowseButtonPressed(); | |
| updateWidgetEnablements(); | |
| } | |
| } | |
| ); | |
| fPatchFileNameField.setFocus(); | |
| return sourceContainerGroup; | |
| } | |
| /** | |
| * Updates the enable state of this page's controls. | |
| */ | |
| protected void updateWidgetEnablements() { | |
| boolean enabled= false; | |
| String error= null; | |
| if (getUseClipboard()) { | |
| enabled= true; | |
| } else { | |
| String path= fPatchFileNameField.getText(); | |
| if (path.length() > 0) { | |
| try { | |
| new FileReader(path); | |
| enabled= true; | |
| } catch (FileNotFoundException ex) { | |
| error= ex.getMessage(); | |
| } | |
| } | |
| } | |
| setPageComplete(enabled); | |
| setErrorMessage(error); | |
| } | |
| protected void handlePatchFileBrowseButtonPressed() { | |
| FileDialog dialog= new FileDialog(getShell(), SWT.NONE); | |
| dialog.setText("Select Patch File"); | |
| dialog.setFilterPath(getPatchFilePath()); | |
| String res= dialog.open(); | |
| if (res == null) | |
| return; | |
| String patchFilePath= dialog.getFileName(); | |
| IPath filterPath= new Path(dialog.getFilterPath()); | |
| IPath path= filterPath.append(patchFilePath).makeAbsolute(); | |
| patchFilePath= path.toOSString(); | |
| //fDialogSettings.put(IUIConstants.DIALOGSTORE_LASTEXTJAR, filterPath.toOSString()); | |
| fPatchFileNameField.setText(patchFilePath); | |
| //setSourceName(patchFilePath); | |
| } | |
| /** | |
| * Sets the source name of the import to be the supplied path. | |
| * Adds the name of the path to the list of items in the | |
| * source combo and selects it. | |
| * | |
| * @param path the path to be added | |
| */ | |
| protected void setSourceName(String path) { | |
| if (path.length() > 0) { | |
| String[] currentItems= fPatchFileNameField.getItems(); | |
| int selectionIndex= -1; | |
| for (int i= 0; i < currentItems.length; i++) | |
| if (currentItems[i].equals(path)) | |
| selectionIndex= i; | |
| if (selectionIndex < 0) { // not found in history | |
| int oldLength= currentItems.length; | |
| String[] newItems= new String[oldLength + 1]; | |
| System.arraycopy(currentItems, 0, newItems, 0, oldLength); | |
| newItems[oldLength]= path; | |
| fPatchFileNameField.setItems(newItems); | |
| selectionIndex= oldLength; | |
| } | |
| fPatchFileNameField.select(selectionIndex); | |
| //resetSelection(); | |
| } | |
| } | |
| /** | |
| * The Finish button was pressed. Try to do the required work now and answer | |
| * a boolean indicating success. If false is returned then the wizard will | |
| * not close. | |
| * | |
| * @return boolean | |
| */ | |
| public boolean finish() { | |
| // if (!ensureSourceIsValid()) | |
| // return false; | |
| saveWidgetValues(); | |
| // Iterator resourcesEnum = getSelectedResources().iterator(); | |
| // List fileSystemObjects = new ArrayList(); | |
| // while (resourcesEnum.hasNext()) { | |
| // fileSystemObjects.add( | |
| // ((FileSystemElement) resourcesEnum.next()).getFileSystemObject()); | |
| // } | |
| // | |
| // if (fileSystemObjects.size() > 0) | |
| // return importResources(fileSystemObjects); | |
| // | |
| // MessageDialog | |
| // .openInformation( | |
| // getContainer().getShell(), | |
| // DataTransferMessages.getString("DataTransfer.information"), //$NON-NLS-1$ | |
| // DataTransferMessages.getString("FileImport.noneSelected")); //$NON-NLS-1$ | |
| // | |
| // return false; | |
| return true; | |
| } | |
| /** | |
| * Use the dialog store to restore widget values to the values that they held | |
| * last time this wizard was used to completion | |
| */ | |
| private void restoreWidgetValues() { | |
| IDialogSettings settings= getDialogSettings(); | |
| if (settings != null) { | |
| // set 'Use Clipboard' radio button | |
| setUseClipboard(settings.getBoolean(STORE_USE_CLIPBOARD_ID)); | |
| // set filenames history | |
| String[] sourceNames= settings.getArray(STORE_PATCH_FILES_ID); | |
| if (sourceNames != null) | |
| for (int i= 0; i < sourceNames.length; i++) | |
| if (sourceNames[i] != null && sourceNames[i].length() > 0) | |
| fPatchFileNameField.add(sourceNames[i]); | |
| // set patch file path | |
| String patchFilePath= settings.get(STORE_PATCH_FILES_ID); | |
| if (patchFilePath != null) | |
| setSourceName(patchFilePath); | |
| } else | |
| System.out.println("restoreWidgetValues: no dialog settings"); | |
| } | |
| /** | |
| * Since Finish was pressed, write widget values to the dialog store so that they | |
| * will persist into the next invocation of this wizard page | |
| */ | |
| void saveWidgetValues() { | |
| IDialogSettings settings= getDialogSettings(); | |
| if (settings != null) { | |
| settings.put(STORE_USE_CLIPBOARD_ID, getUseClipboard()); | |
| settings.put(STORE_PATCH_FILES_ID, getPatchFilePath()); | |
| // update source names history | |
| String[] sourceNames= settings.getArray(STORE_PATCH_FILES_ID); | |
| if (sourceNames == null) | |
| sourceNames= new String[0]; | |
| sourceNames= addToHistory(sourceNames, getPatchFilePath()); | |
| settings.put(STORE_PATCH_FILES_ID, sourceNames); | |
| } | |
| } | |
| // static helpers | |
| private void setUseClipboard(boolean useClipboard) { | |
| if (useClipboard) | |
| fUseClipboardButton.setSelection(true); | |
| else | |
| fUsePatchFileButton.setSelection(true); | |
| Utilities.setEnableComposite(fPatchFileGroup, !useClipboard); | |
| } | |
| private boolean getUseClipboard() { | |
| if (fUseClipboardButton != null) | |
| return fUseClipboardButton.getSelection(); | |
| return false; | |
| } | |
| private String getPatchFilePath() { | |
| if (fPatchFileNameField != null) | |
| return fPatchFileNameField.getText(); | |
| return ""; | |
| } | |
| /** | |
| * Creates a new label with a bold font. | |
| * | |
| * @param parent the parent control | |
| * @param text the label text | |
| * @return the new label control | |
| */ | |
| private static Label buildPlainLabel(Composite parent, String text) { | |
| Label label= new Label(parent, SWT.NONE); | |
| label.setText(text); | |
| GridData data= new GridData(); | |
| data.verticalAlignment= GridData.FILL; | |
| data.horizontalAlignment= GridData.FILL; | |
| label.setLayoutData(data); | |
| return label; | |
| } | |
| /** | |
| * Adds an entry to a history, while taking care of duplicate history items | |
| * and excessively long histories. The assumption is made that all histories | |
| * should be of length <code>COMBO_HISTORY_LENGTH</code>. | |
| * | |
| * @param history the current history | |
| * @param newEntry the entry to add to the history | |
| */ | |
| protected static String[] addToHistory(String[] history, String newEntry) { | |
| java.util.ArrayList l= new java.util.ArrayList(java.util.Arrays.asList(history)); | |
| l.remove(newEntry); | |
| l.add(0,newEntry); | |
| // since only one new item was added, we can be over the limit | |
| // by at most one item | |
| if (l.size() > COMBO_HISTORY_LENGTH) | |
| l.remove(COMBO_HISTORY_LENGTH); | |
| return (String[]) l.toArray(new String[l.size()]); | |
| } | |
| } | |