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- /*
- File: AppController.m
- Abstract: Application Controller object, and the NSBrowser delegate. An instance of this object is in the MainMenu.xib.
- Version: 1.1
- Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
- Inc. ("Apple") in consideration of your agreement to the following
- terms, and your use, installation, modification or redistribution of
- this Apple software constitutes acceptance of these terms. If you do
- not agree with these terms, please do not use, install, modify or
- redistribute this Apple software.
- In consideration of your agreement to abide by the following terms, and
- subject to these terms, Apple grants you a personal, non-exclusive
- license, under Apple's copyrights in this original Apple software (the
- "Apple Software"), to use, reproduce, modify and redistribute the Apple
- Software, with or without modifications, in source and/or binary forms;
- provided that if you redistribute the Apple Software in its entirety and
- without modifications, you must retain this notice and the following
- text and disclaimers in all such redistributions of the Apple Software.
- Neither the name, trademarks, service marks or logos of Apple Inc. may
- be used to endorse or promote products derived from the Apple Software
- without specific prior written permission from Apple. Except as
- expressly stated in this notice, no other rights or licenses, express or
- implied, are granted by Apple herein, including but not limited to any
- patent rights that may be infringed by your derivative works or by other
- works in which the Apple Software may be incorporated.
- The Apple Software is provided by Apple on an "AS IS" basis. APPLE
- MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
- THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
- FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
- OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
- IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
- OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
- MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
- AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
- STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
- POSSIBILITY OF SUCH DAMAGE.
- Copyright (C) 2011 Apple Inc. All Rights Reserved.
- */
- #import "AppController.h"
- #import "FileSystemNode.h"
- // Turn on or off this define to use the new SnowLeopard item-based API
- #define USE_ITEM_BASED_API 1
- @implementation AppController
- - (void)dealloc {
- [_rootNode release];
- [super dealloc];
- }
- - (void) awakeFromNib
- {
- [_browser setDelegate:self];
- [_browser setDraggingSourceOperationMask:NSDragOperationAll forLocal:NO];
- }
- - (BOOL)browser:(NSBrowser *)browser canDragRowsWithIndexes:(NSIndexSet *)rowIndexes inColumn:(NSInteger)column withEvent:(NSEvent *)event
- {
- return YES;
- }
- - (BOOL)browser:(NSBrowser *)browser writeRowsWithIndexes:(NSIndexSet *)rowIndexes inColumn:(NSInteger)column toPasteboard:(NSPasteboard *)pasteboard
- {
- BOOL bValue;
- NSInteger row = [rowIndexes lastIndex];
- FileSystemNode *item = [browser itemAtRow:row inColumn:column];
- [pasteboard declareTypes:@[NSPasteboardTypeString, NSPasteboardTypeHTML] owner:self];
- bValue = [pasteboard setString:item.displayName forType:NSPasteboardTypeString];
- bValue = [pasteboard setString:[NSString stringWithFormat:@"<html><body>%@</body></html>", item.displayName] forType:NSPasteboardTypeHTML];
- return YES;
- }
- #if USE_ITEM_BASED_API
- // This method is optional, but makes the code much easier to understand
- - (id)rootItemForBrowser:(NSBrowser *)browser {
- if (_rootNode == nil) {
- _rootNode = [[FileSystemNode alloc] initWithURL:[NSURL fileURLWithPath:@"/"]];
- }
- return _rootNode;
- }
- - (NSInteger)browser:(NSBrowser *)browser numberOfChildrenOfItem:(id)item {
- FileSystemNode *node = (FileSystemNode *)item;
- return node.children.count;
- }
- - (id)browser:(NSBrowser *)browser child:(NSInteger)index ofItem:(id)item {
- FileSystemNode *node = (FileSystemNode *)item;
- return [node.children objectAtIndex:index];
- }
- - (BOOL)browser:(NSBrowser *)browser isLeafItem:(id)item {
- FileSystemNode *node = (FileSystemNode *)item;
- return !node.isDirectory;
- }
- - (id)browser:(NSBrowser *)browser objectValueForItem:(id)item {
- FileSystemNode *node = (FileSystemNode *)item;
- return node.displayName;
- }
- #else
- // This is a utility method to find the parent item for a given column. The item based API eliminates the need for this method.
- - (FileSystemNode *)parentNodeForColumn:(NSInteger)column {
- if (_rootNode == nil) {
- _rootNode = [[FileSystemNode alloc] initWithURL:[NSURL fileURLWithPath:@"/"]];
- }
- FileSystemNode *result = _rootNode;
- // Walk up to this column, finding the selected row in the column before it and using that in the children array
- for (NSInteger i = 0; i < column; i++) {
- NSInteger selectedRowInColumn = [_browser selectedRowInColumn:i];
- FileSystemNode *selectedChildNode = [result.children objectAtIndex:selectedRowInColumn];
- result = selectedChildNode;
- }
- return result;
- }
- // Non-item based API example. This code will work on all systems, but applications targeting SnowLeopard and higher should use the new item-based API.
- - (NSInteger)browser:(NSBrowser *)sender numberOfRowsInColumn:(NSInteger)column {
- FileSystemNode *parentNode = [self parentNodeForColumn:column];
- return parentNode.children.count;
- }
- - (void)browser:(NSBrowser *)sender willDisplayCell:(NSBrowserCell *)cell atRow:(NSInteger)row column:(NSInteger)column {
- // Lazily setup the cell's properties in this method
- FileSystemNode *parentNode = [self parentNodeForColumn:column];
- FileSystemNode *childNode = [parentNode.children objectAtIndex:row];
- [cell setTitle:childNode.displayName];
- [cell setLeaf:!childNode.isDirectory];
- }
- #endif
- @end
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