| /******************************************************************************* |
| * Copyright (c) 2000, 2009 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.carbon.*; |
| |
| /** |
| * Instances of this class allow the user to navigate |
| * the file system and select or enter a file name. |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>SAVE, OPEN, MULTI</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>(none)</dd> |
| * </dl> |
| * <p> |
| * Note: Only one of the styles SAVE and OPEN may be specified. |
| * </p><p> |
| * IMPORTANT: This class is intended to be subclassed <em>only</em> |
| * within the SWT implementation. |
| * </p> |
| * |
| * @see <a href="http://www.eclipse.org/swt/snippets/#filedialog">FileDialog snippets</a> |
| * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample, Dialog tab</a> |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public class FileDialog extends Dialog { |
| String [] filterNames = new String [0]; |
| String [] filterExtensions = new String [0]; |
| String [] fileNames = new String[0]; |
| String filterPath = "", fileName = ""; |
| int filterIndex = 0; |
| boolean overwrite = false; |
| static final char EXTENSION_SEPARATOR = ';'; |
| |
| /** |
| * Constructs a new instance of this class given only its parent. |
| * |
| * @param parent a shell which will be the parent of the new instance |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| */ |
| public FileDialog (Shell parent) { |
| this (parent, SWT.APPLICATION_MODAL); |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * and a style value describing its behavior and appearance. |
| * <p> |
| * The style value is either one of the style constants defined in |
| * class <code>SWT</code> which is applicable to instances of this |
| * class, or must be built by <em>bitwise OR</em>'ing together |
| * (that is, using the <code>int</code> "|" operator) two or more |
| * of those <code>SWT</code> style constants. The class description |
| * lists the style constants that are applicable to the class. |
| * Style bits are also inherited from superclasses. |
| * </p> |
| * |
| * @param parent a shell which will be the parent of the new instance |
| * @param style the style of dialog to construct |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see SWT#SAVE |
| * @see SWT#OPEN |
| * @see SWT#MULTI |
| */ |
| public FileDialog (Shell parent, int style) { |
| super (parent, checkStyle (parent, style)); |
| checkSubclass (); |
| } |
| |
| /** |
| * Returns the path of the first file that was |
| * selected in the dialog relative to the filter path, or an |
| * empty string if no such file has been selected. |
| * |
| * @return the relative path of the file |
| */ |
| public String getFileName () { |
| return fileName; |
| } |
| |
| /** |
| * Returns a (possibly empty) array with the paths of all files |
| * that were selected in the dialog relative to the filter path. |
| * |
| * @return the relative paths of the files |
| */ |
| public String [] getFileNames () { |
| return fileNames; |
| } |
| |
| /** |
| * Returns the file extensions which the dialog will |
| * use to filter the files it shows. |
| * |
| * @return the file extensions filter |
| */ |
| public String [] getFilterExtensions () { |
| return filterExtensions; |
| } |
| |
| /** |
| * Get the 0-based index of the file extension filter |
| * which was selected by the user, or -1 if no filter |
| * was selected. |
| * <p> |
| * This is an index into the FilterExtensions array and |
| * the FilterNames array. |
| * </p> |
| * |
| * @return index the file extension filter index |
| * |
| * @see #getFilterExtensions |
| * @see #getFilterNames |
| * |
| * @since 3.4 |
| */ |
| public int getFilterIndex () { |
| return filterIndex; |
| } |
| |
| /** |
| * Returns the names that describe the filter extensions |
| * which the dialog will use to filter the files it shows. |
| * |
| * @return the list of filter names |
| */ |
| public String [] getFilterNames () { |
| return filterNames; |
| } |
| |
| /** |
| * Returns the directory path that the dialog will use, or an empty |
| * string if this is not set. File names in this path will appear |
| * in the dialog, filtered according to the filter extensions. |
| * |
| * @return the directory path string |
| * |
| * @see #setFilterExtensions |
| */ |
| public String getFilterPath () { |
| return filterPath; |
| } |
| |
| /** |
| * Returns the flag that the dialog will use to |
| * determine whether to prompt the user for file |
| * overwrite if the selected file already exists. |
| * |
| * @return true if the dialog will prompt for file overwrite, false otherwise |
| * |
| * @since 3.4 |
| */ |
| public boolean getOverwrite () { |
| return overwrite; |
| } |
| |
| int eventProc (int callBackSelector, int callBackParms, int callBackUD) { |
| switch (callBackSelector) { |
| case OS.kNavCBPopupMenuSelect: |
| NavCBRec cbRec = new NavCBRec (); |
| OS.memmove (cbRec, callBackParms, NavCBRec.sizeof); |
| if (cbRec.eventData.eventDataParms.param != 0) { |
| NavMenuItemSpec spec = new NavMenuItemSpec (); |
| OS.memmove (spec, cbRec.eventData.eventDataParms.param, NavMenuItemSpec.sizeof); |
| int index = spec.menuType; |
| if (0 <= index && index < filterExtensions.length) { |
| filterIndex = index; |
| } |
| } |
| break; |
| } |
| return 0; |
| } |
| |
| int filterProc (int theItem, int infoPtr, int callBackUD, int filterMode) { |
| if (filterMode == OS.kNavFilteringBrowserList) { |
| if (filterExtensions != null && 0 <= filterIndex && filterIndex < filterExtensions.length) { |
| NavFileOrFolderInfo info = new NavFileOrFolderInfo(); |
| OS.memmove (info, infoPtr, NavFileOrFolderInfo.sizeof); |
| if (!info.isFolder) { |
| OS.AECoerceDesc (theItem, OS.typeFSRef, theItem); |
| byte [] fsRef = new byte [80]; |
| if (OS.AEGetDescData (theItem, fsRef, fsRef.length) == OS.noErr) { |
| int url = OS.CFURLCreateFromFSRef (OS.kCFAllocatorDefault, fsRef); |
| if (url != 0) { |
| int ext = OS.CFURLCopyPathExtension (url); |
| OS.CFRelease (url); |
| if (ext != 0) { |
| char [] buffer= new char [OS.CFStringGetLength (ext)]; |
| if (buffer.length > 0) { |
| CFRange range = new CFRange (); |
| range.length = buffer.length; |
| OS.CFStringGetCharacters (ext, range, buffer); |
| } |
| OS.CFRelease (ext); |
| String extension = new String (buffer); |
| String extensions = filterExtensions [filterIndex]; |
| int start = 0, length = extensions.length (); |
| while (start < length) { |
| int index = extensions.indexOf (EXTENSION_SEPARATOR, start); |
| if (index == -1) index = length; |
| String filter = extensions.substring (start, index).trim (); |
| if (filter.equals ("*") || filter.equals ("*.*")) return 1; |
| if (filter.startsWith ("*.")) filter = filter.substring (2); |
| if (filter.toLowerCase ().equals(extension.toLowerCase ())) return 1; |
| start = index + 1; |
| } |
| return 0; |
| } |
| } |
| } |
| return 0; |
| } |
| } |
| } |
| return 1; |
| } |
| |
| String getString (int cfString) { |
| if (cfString == 0) return ""; |
| int length = OS.CFStringGetLength (cfString); |
| char [] buffer= new char [length]; |
| CFRange range = new CFRange (); |
| range.length = length; |
| OS.CFStringGetCharacters (cfString, range, buffer); |
| return new String (buffer); |
| } |
| |
| /** |
| * Makes the dialog visible and brings it to the front |
| * of the display. |
| * |
| * @return a string describing the absolute path of the first selected file, |
| * or null if the dialog was cancelled or an error occurred |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the dialog has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the dialog</li> |
| * </ul> |
| */ |
| public String open () { |
| String fullPath = null; |
| fileNames = new String [0]; |
| |
| int titlePtr = 0; |
| if (title != null) { |
| char [] buffer = new char [title.length ()]; |
| title.getChars (0, buffer.length, buffer, 0); |
| titlePtr = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); |
| } |
| int fileNamePtr = 0; |
| if (fileName != null) { |
| char [] buffer = new char [fileName.length ()]; |
| fileName.getChars (0, buffer.length, buffer, 0); |
| fileNamePtr = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); |
| } |
| |
| NavDialogCreationOptions options = new NavDialogCreationOptions (); |
| options.windowTitle = options.clientName = titlePtr; |
| options.parentWindow = OS.GetControlOwner (parent.handle); |
| options.optionFlags = OS.kNavSupportPackages | OS.kNavAllowInvisibleFiles; |
| options.location_h = -1; |
| options.location_v = -1; |
| options.saveFileName = fileNamePtr; |
| options.modality = OS.kWindowModalityAppModal; |
| |
| int extensions = 0; |
| Callback filterCallback = null, eventCallback = null; |
| int [] outDialog = new int [1]; |
| if ((style & SWT.SAVE) != 0) { |
| if (!overwrite) options.optionFlags |= OS.kNavDontConfirmReplacement; |
| OS.NavCreatePutFileDialog (options, 0, 0, 0, 0, outDialog); |
| } else { |
| if ((style & SWT.MULTI) != 0) options.optionFlags |= OS.kNavAllowMultipleFiles; |
| int filterProc = 0, eventProc = 0; |
| if (filterExtensions != null && filterExtensions.length != 0) { |
| extensions = options.popupExtension = OS.CFArrayCreateMutable (OS.kCFAllocatorDefault, filterExtensions.length, 0); |
| for (int i = 0; i < filterExtensions.length; i++) { |
| String str = filterExtensions [i]; |
| if (filterNames != null && filterNames.length > i) { |
| str = filterNames [i]; |
| } |
| char [] chars = new char [str.length ()]; |
| str.getChars (0, chars.length, chars, 0); |
| int ptr = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, chars, chars.length); |
| if (ptr != 0) OS.CFArrayAppendValue (extensions, ptr); |
| } |
| filterCallback = new Callback (this, "filterProc", 4); |
| filterProc = filterCallback.getAddress(); |
| if (filterProc == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS); |
| eventCallback = new Callback (this, "eventProc", 3); |
| eventProc = eventCallback.getAddress(); |
| if (eventProc == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS); |
| } |
| OS.NavCreateGetFileDialog(options, 0, eventProc, 0, filterProc, 0, outDialog); |
| } |
| if (outDialog [0] != 0) { |
| if (filterPath != null && filterPath.length () > 0) { |
| char [] chars = new char [filterPath.length ()]; |
| filterPath.getChars (0, chars.length, chars, 0); |
| int str = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, chars, chars.length); |
| if (str != 0) { |
| int url = OS.CFURLCreateWithFileSystemPath (OS.kCFAllocatorDefault, str, OS.kCFURLPOSIXPathStyle, false); |
| if (url != 0) { |
| byte [] fsRef = new byte [80]; |
| if (OS.CFURLGetFSRef (url, fsRef)) { |
| AEDesc params = new AEDesc (); |
| if (OS.AECreateDesc (OS.typeFSRef, fsRef, fsRef.length, params) == OS.noErr) { |
| OS.NavCustomControl (outDialog [0], OS.kNavCtlSetLocation, params); |
| OS.AEDisposeDesc (params); |
| } |
| } |
| OS.CFRelease (url); |
| } |
| OS.CFRelease (str); |
| } |
| } |
| if (filterExtensions != null && 0 <= filterIndex && filterIndex < filterExtensions.length) { |
| NavMenuItemSpec spec = new NavMenuItemSpec (); |
| spec.menuType = filterIndex; |
| OS.NavCustomControl (outDialog [0], OS.kNavCtlSelectCustomType, spec); |
| } |
| OS.NavDialogRun (outDialog [0]); |
| int action = OS.NavDialogGetUserAction (outDialog [0]); |
| switch (action) { |
| case OS.kNavUserActionOpen: |
| case OS.kNavUserActionChoose: |
| case OS.kNavUserActionSaveAs: { |
| NavReplyRecord record = new NavReplyRecord (); |
| OS.NavDialogGetReply (outDialog [0], record); |
| AEDesc selection = new AEDesc (); |
| selection.descriptorType = record.selection_descriptorType; |
| selection.dataHandle = record.selection_dataHandle; |
| int [] count = new int [1]; |
| OS.AECountItems (selection, count); |
| if (count [0] > 0) { |
| fileNames = new String [count [0]]; |
| int maximumSize = 80; // size of FSRef |
| int dataPtr = OS.NewPtr (maximumSize); |
| int[] aeKeyword = new int [1]; |
| int[] typeCode = new int [1]; |
| int[] actualSize = new int [1]; |
| |
| if ((style & SWT.SAVE) != 0) { |
| if (OS.AEGetNthPtr (selection, 1, OS.typeFSRef, aeKeyword, typeCode, dataPtr, maximumSize, actualSize) == OS.noErr) { |
| byte[] fsRef = new byte[actualSize[0]]; |
| OS.memmove (fsRef, dataPtr, actualSize [0]); |
| int pathUrl = OS.CFURLCreateFromFSRef (OS.kCFAllocatorDefault, fsRef); |
| |
| /* Filter path */ |
| int pathString = OS.CFURLCopyFileSystemPath (pathUrl, OS.kCFURLPOSIXPathStyle); |
| filterPath = getString (pathString); |
| OS.CFRelease (pathString); |
| |
| /* Full path */ |
| int fullUrl = OS.CFURLCreateCopyAppendingPathComponent (OS.kCFAllocatorDefault, pathUrl, record.saveFileName, false); |
| int fullString = OS.CFURLCopyFileSystemPath (fullUrl, OS.kCFURLPOSIXPathStyle); |
| fullPath = getString (fullString); |
| OS.CFRelease (fullString); |
| OS.CFRelease (fullUrl); |
| |
| /* File name */ |
| fileName = fileNames [0] = getString (record.saveFileName); |
| |
| OS.CFRelease (pathUrl); |
| } |
| } else { |
| for (int i = 0; i < count [0]; i++) { |
| if (OS.AEGetNthPtr (selection, i+1, OS.typeFSRef, aeKeyword, typeCode, dataPtr, maximumSize, actualSize) == OS.noErr) { |
| byte[] fsRef = new byte[actualSize[0]]; |
| OS.memmove (fsRef, dataPtr, actualSize [0]); |
| int url = OS.CFURLCreateFromFSRef (OS.kCFAllocatorDefault, fsRef); |
| int fullString = OS.CFURLCopyFileSystemPath (url, OS.kCFURLPOSIXPathStyle); |
| |
| /* File path */ |
| int pathUrl = OS.CFURLCreateCopyDeletingLastPathComponent (OS.kCFAllocatorDefault, url); |
| int pathString = OS.CFURLCopyFileSystemPath (pathUrl, OS.kCFURLPOSIXPathStyle); |
| String path = getString (pathString); |
| OS.CFRelease (pathString); |
| OS.CFRelease (pathUrl); |
| |
| if (i == 0) { |
| /* Full path */ |
| fullPath = getString (fullString); |
| |
| /* Filter path */ |
| filterPath = path; |
| |
| /* File name */ |
| int fileString = OS.CFURLCopyLastPathComponent (url); |
| fileName = fileNames [0] = getString (fileString); |
| OS.CFRelease (fileString); |
| } else { |
| if (path.equals (filterPath)) { |
| int fileString = OS.CFURLCopyLastPathComponent (url); |
| fileNames [i] = getString (fileString); |
| OS.CFRelease (fileString); |
| } else { |
| fileNames [i] = getString (fullString); |
| } |
| } |
| OS.CFRelease (fullString); |
| OS.CFRelease (url); |
| } |
| } |
| } |
| OS.DisposePtr (dataPtr); |
| } |
| OS.NavDisposeReply (record); |
| } |
| } |
| } |
| |
| if (titlePtr != 0) OS.CFRelease (titlePtr); |
| if (fileNamePtr != 0) OS.CFRelease (fileNamePtr); |
| if (outDialog [0] != 0) OS.NavDialogDispose (outDialog [0]); |
| if (extensions != 0) { |
| int count = OS.CFArrayGetCount (extensions); |
| for (int i = 0; i < count; i++) { |
| OS.CFRelease (OS.CFArrayGetValueAtIndex (extensions, i)); |
| } |
| OS.CFRelease (extensions); |
| } |
| if (filterCallback != null) filterCallback.dispose(); |
| if (eventCallback != null) eventCallback.dispose(); |
| return fullPath; |
| } |
| |
| /** |
| * Set the initial filename which the dialog will |
| * select by default when opened to the argument, |
| * which may be null. The name will be prefixed with |
| * the filter path when one is supplied. |
| * |
| * @param string the file name |
| */ |
| public void setFileName (String string) { |
| fileName = string; |
| } |
| |
| /** |
| * Set the file extensions which the dialog will |
| * use to filter the files it shows to the argument, |
| * which may be null. |
| * <p> |
| * The strings are platform specific. For example, on |
| * some platforms, an extension filter string is typically |
| * of the form "*.extension", where "*.*" matches all files. |
| * For filters with multiple extensions, use semicolon as |
| * a separator, e.g. "*.jpg;*.png". |
| * </p> |
| * |
| * @param extensions the file extension filter |
| * |
| * @see #setFilterNames to specify the user-friendly |
| * names corresponding to the extensions |
| */ |
| public void setFilterExtensions (String [] extensions) { |
| filterExtensions = extensions; |
| } |
| |
| /** |
| * Set the 0-based index of the file extension filter |
| * which the dialog will use initially to filter the files |
| * it shows to the argument. |
| * <p> |
| * This is an index into the FilterExtensions array and |
| * the FilterNames array. |
| * </p> |
| * |
| * @param index the file extension filter index |
| * |
| * @see #setFilterExtensions |
| * @see #setFilterNames |
| * |
| * @since 3.4 |
| */ |
| public void setFilterIndex (int index) { |
| filterIndex = index; |
| } |
| |
| /** |
| * Sets the names that describe the filter extensions |
| * which the dialog will use to filter the files it shows |
| * to the argument, which may be null. |
| * <p> |
| * Each name is a user-friendly short description shown for |
| * its corresponding filter. The <code>names</code> array must |
| * be the same length as the <code>extensions</code> array. |
| * </p> |
| * |
| * @param names the list of filter names, or null for no filter names |
| * |
| * @see #setFilterExtensions |
| */ |
| public void setFilterNames (String [] names) { |
| filterNames = names; |
| } |
| |
| /** |
| * Sets the directory path that the dialog will use |
| * to the argument, which may be null. File names in this |
| * path will appear in the dialog, filtered according |
| * to the filter extensions. If the string is null, |
| * then the operating system's default filter path |
| * will be used. |
| * <p> |
| * Note that the path string is platform dependent. |
| * For convenience, either '/' or '\' can be used |
| * as a path separator. |
| * </p> |
| * |
| * @param string the directory path |
| * |
| * @see #setFilterExtensions |
| */ |
| public void setFilterPath (String string) { |
| filterPath = string; |
| } |
| |
| /** |
| * Sets the flag that the dialog will use to |
| * determine whether to prompt the user for file |
| * overwrite if the selected file already exists. |
| * |
| * @param overwrite true if the dialog will prompt for file overwrite, false otherwise |
| * |
| * @since 3.4 |
| */ |
| public void setOverwrite (boolean overwrite) { |
| this.overwrite = overwrite; |
| } |
| } |