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NSSearchFieldCell.m
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NSSearchFieldCell.m
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/*
NSSearchFieldCell.h
Text field cell class for text search
Copyright (C) 2004 Free Software Foundation, Inc.
Author: H. Nikolaus Schaller <hns@computer.org>
Date: Dec 2004
Author: Fred Kiefer <fredkiefer@gmx.de>
Date: Mar 2006
This file is part of the GNUstep GUI Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; see the file COPYING.LIB.
If not, see <http://www.gnu.org/licenses/> or write to the
Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <Foundation/NSArray.h>
#include <Foundation/NSException.h>
#include <Foundation/NSNotification.h>
#include <Foundation/NSString.h>
#include <Foundation/NSUserDefaults.h>
#include <AppKit/NSApplication.h>
#include <AppKit/NSButtonCell.h>
#include <AppKit/NSEvent.h>
#include <AppKit/NSImage.h>
#include <AppKit/NSMenu.h>
#include "AppKit/NSMenuView.h"
#include <AppKit/NSSearchFieldCell.h>
#include "AppKit/NSWindow.h"
@interface NSSearchFieldCell (Private)
- (NSMenu *) _buildTemplate;
- (void) _openPopup: (id)sender;
- (void) _clearSearches: (id)sender;
- (void) _loadSearches;
- (void) _saveSearches;
@end /* NSSearchFieldCell Private */
@implementation NSSearchFieldCell
- (id) initTextCell:(NSString *)aString
{
self = [super initTextCell: aString];
if (self)
{
NSButtonCell *c;
// NSMenu *template;
c = [[NSButtonCell alloc] initImageCell: nil];
[self setCancelButtonCell: c];
RELEASE(c);
[self resetCancelButtonCell];
c = [[NSButtonCell alloc] initImageCell: nil];
[self setSearchButtonCell: c];
RELEASE(c);
[self resetSearchButtonCell];
/* Don't set the searchMenuTemplate unless it is explicitly set in code or by a nib connection
template = [self _buildTemplate];
[self setSearchMenuTemplate: template];
RELEASE(template);
*/
//_recent_searches = [[NSMutableArray alloc] init];
//_recents_autosave_name = nil;
[self _loadSearches];
_max_recents = 10;
}
return self;
}
- (void) dealloc
{
RELEASE(_cancel_button_cell);
RELEASE(_search_button_cell);
RELEASE(_recent_searches);
RELEASE(_recents_autosave_name);
RELEASE(_menu_template);
[super dealloc];
}
- (id) copyWithZone:(NSZone *) zone;
{
NSSearchFieldCell *c = [super copyWithZone: zone];
c->_cancel_button_cell = [_cancel_button_cell copyWithZone: zone];
c->_search_button_cell = [_search_button_cell copyWithZone: zone];
c->_recent_searches = [_recent_searches mutableCopyWithZone: zone];
c->_recents_autosave_name = [_recents_autosave_name copyWithZone: zone];
c->_menu_template = [_menu_template copyWithZone: zone];
return c;
}
- (BOOL) isOpaque
{
// only if all components are opaque
return [super isOpaque] && [_cancel_button_cell isOpaque] &&
[_search_button_cell isOpaque];
}
- (void) drawWithFrame: (NSRect)cellFrame inView: (NSView*)controlView
{
[_search_button_cell drawWithFrame: [self searchButtonRectForBounds: cellFrame]
inView: controlView];
[super drawWithFrame: [self searchTextRectForBounds: cellFrame]
inView: controlView];
[_cancel_button_cell drawWithFrame: [self cancelButtonRectForBounds: cellFrame]
inView: controlView];
}
- (BOOL) sendsWholeSearchString
{
return _sends_whole_search_string;
}
- (void) setSendsWholeSearchString: (BOOL)flag
{
_sends_whole_search_string = flag;
}
- (BOOL) sendsSearchStringImmediately
{
return _sends_search_string_immediatly;
}
- (void) setSendsSearchStringImmediately: (BOOL)flag
{
_sends_search_string_immediatly = flag;
}
- (int) maximumRecents
{
return _max_recents;
}
- (void) setMaximumRecents: (int)max
{
if (max > 254)
{
max = 254;
}
else if (max < 0)
{
max = 10;
}
_max_recents = max;
}
- (NSArray *) recentSearches
{
return _recent_searches;
}
- (NSString *) recentsAutosaveName
{
return _recents_autosave_name;
}
- (void) setRecentsAutosaveName: (NSString *)name
{
ASSIGN(_recents_autosave_name, name);
[self _loadSearches];
}
- (void) setRecentSearches: (NSArray *)searches
{
int max;
max = [self maximumRecents];
if ([searches count] > max)
{
id buffer[max];
[searches getObjects: buffer range: NSMakeRange(0, max)];
searches = [NSMutableArray arrayWithObjects: buffer count: max];
}
else
{
searches = [NSMutableArray arrayWithArray:searches];
}
ASSIGN(_recent_searches, searches);
[self _saveSearches];
}
- (void) addToRecentSearches:(NSString *)searchTerm
{
if (!_recent_searches)
{
ASSIGN(_recent_searches, [NSMutableArray array]);
}
if (searchTerm != nil && [searchTerm length] > 0
&& [_recent_searches indexOfObject:searchTerm] == NSNotFound)
{
[_recent_searches addObject:searchTerm];
[self _saveSearches];
}
}
- (NSMenu *) searchMenuTemplate
{
return _menu_template;
}
- (void) setSearchMenuTemplate: (NSMenu *)menu
{
ASSIGN(_menu_template, menu);
if (menu)
{
[[self searchButtonCell] setTarget:self];
[[self searchButtonCell] setAction:@selector(_openPopup:)];
[[self searchButtonCell] sendActionOn:NSLeftMouseDownMask];
}
else
{
[self resetSearchButtonCell];
}
}
- (NSButtonCell *) cancelButtonCell
{
return _cancel_button_cell;
}
- (void) setCancelButtonCell: (NSButtonCell *)cell
{
ASSIGN(_cancel_button_cell, cell);
}
- (NSButtonCell *) searchButtonCell
{
return _search_button_cell;
}
- (void) setSearchButtonCell: (NSButtonCell *)cell
{
ASSIGN(_search_button_cell, cell);
}
- (void) resetCancelButtonCell
{
NSButtonCell *c;
c = [self cancelButtonCell];
// configure the button
[c setButtonType: NSMomentaryChangeButton];
[c setBezelStyle: NSRegularSquareBezelStyle];
[c setBordered: NO];
[c setBezeled: NO];
[c setEditable: NO];
[c setImagePosition: NSImageOnly];
[c setImage: [NSImage imageNamed: @"GSStop"]];
[c setAction: @selector(delete:)];
[c setTarget: nil];
[c setKeyEquivalent: @"\e"];
}
- (void) resetSearchButtonCell
{
NSButtonCell *c;
c = [self searchButtonCell];
// configure the button
[c setButtonType: NSMomentaryChangeButton];
[c setBezelStyle: NSRegularSquareBezelStyle];
[c setBordered: NO];
[c setBezeled: NO];
[c setEditable: NO];
[c setImagePosition: NSImageOnly];
[c setImage: [NSImage imageNamed: @"GSSearch"]];
// [c setAction: [self action]];
// [c setTarget: [self target]];
[c setAction: @selector(performClick:)];
[c setTarget: self];
[c sendActionOn:NSLeftMouseUpMask];
[c setKeyEquivalent: @"\r"];
}
#define ICON_WIDTH 16
- (NSRect) cancelButtonRectForBounds: (NSRect)rect
{
NSRect part, clear;
NSDivideRect(rect, &clear, &part, ICON_WIDTH, NSMaxXEdge);
return clear;
}
- (NSRect) searchTextRectForBounds: (NSRect)rect
{
NSRect search, text, clear, part;
if (!_search_button_cell)
{
// nothing to split off
part = rect;
}
else
{
NSDivideRect(rect, &search, &part, ICON_WIDTH, NSMinXEdge);
}
if (!_cancel_button_cell)
{
// nothing to split off
text = part;
}
else
{
NSDivideRect(part, &clear, &text, ICON_WIDTH, NSMaxXEdge);
}
return text;
}
- (NSRect) searchButtonRectForBounds: (NSRect)rect;
{
NSRect search, part;
NSDivideRect(rect, &search, &part, ICON_WIDTH, NSMinXEdge);
return search;
}
- (void) editWithFrame: (NSRect)aRect
inView: (NSView*)controlView
editor: (NSText*)textObject
delegate: (id)anObject
event: (NSEvent*)theEvent
{
// constrain to visible text area
[super editWithFrame: [self searchTextRectForBounds: aRect]
inView: controlView
editor: textObject
delegate: anObject
event: theEvent];
[[NSNotificationCenter defaultCenter]
addObserver: self
selector: @selector(textDidChange:)
name: NSTextDidChangeNotification
object: textObject];
}
- (void) endEditing: (NSText *)editor
{
[self addToRecentSearches:[[[editor string] copy] autorelease]];
[super endEditing: editor];
[[NSNotificationCenter defaultCenter]
removeObserver: self
name: NSTextDidChangeNotification
object: editor];
}
- (void) selectWithFrame: (NSRect)aRect
inView: (NSView*)controlView
editor: (NSText*)textObject
delegate: (id)anObject
start: (int)selStart
length: (int)selLength
{
// constrain to visible text area
[super selectWithFrame: [self searchTextRectForBounds: aRect]
inView: controlView
editor: textObject
delegate: anObject
start: selStart
length: selLength];
}
- (BOOL) trackMouse: (NSEvent *)event
inRect: (NSRect)cellFrame
ofView: (NSView *)controlView
untilMouseUp: (BOOL)untilMouseUp
{
NSRect rect;
NSPoint thePoint;
NSPoint location = [event locationInWindow];
thePoint = [controlView convertPoint: location fromView: nil];
// check if we are within the search/stop buttons
rect = [self searchButtonRectForBounds: cellFrame];
if ([controlView mouse: thePoint inRect: rect])
{
return [[self searchButtonCell] trackMouse: event
inRect: rect
ofView: controlView
untilMouseUp: untilMouseUp];
}
rect = [self cancelButtonRectForBounds: cellFrame];
if ([controlView mouse: thePoint inRect: rect])
{
return [[self cancelButtonCell] trackMouse: event
inRect: rect
ofView: controlView
untilMouseUp: untilMouseUp];
}
return [super trackMouse: event
inRect: [self searchTextRectForBounds: cellFrame]
ofView: controlView
untilMouseUp: untilMouseUp];
}
- (void) textDidChange: (NSNotification *)notification
{
NSText *textObject;
// make textChanged send action (unless disabled)
if (_sends_whole_search_string)
{
// ignore
return;
}
textObject = [notification object];
// copy the current NSTextEdit string so that it can be read from the NSSearchFieldCell!
[self setStringValue: [textObject string]];
[[self searchButtonCell] performClickWithFrame:
[self searchButtonRectForBounds: [_control_view bounds]]
inView: _control_view];
}
//
// NSCoding protocol
//
- (void) encodeWithCoder: (NSCoder*)aCoder
{
[super encodeWithCoder: aCoder];
[aCoder encodeObject: _search_button_cell];
[aCoder encodeObject: _cancel_button_cell];
[aCoder encodeObject: _recents_autosave_name];
[aCoder encodeValueOfObjCType: @encode(BOOL)
at: &_sends_whole_search_string];
[aCoder encodeValueOfObjCType: @encode(unsigned int)
at: &_max_recents];
}
- (id) initWithCoder: (NSCoder*)aDecoder
{
self = [super initWithCoder: aDecoder];
if(self != nil)
{
if ([aDecoder allowsKeyedCoding])
{
[self setSearchButtonCell: [aDecoder decodeObjectForKey: @"NSSearchButtonCell"]];
[self setCancelButtonCell: [aDecoder decodeObjectForKey: @"NSCancelButtonCell"]];
[self setRecentsAutosaveName: [aDecoder decodeObjectForKey: @"NSRecentsAutosaveName"]];
[self setSendsWholeSearchString: [aDecoder decodeBoolForKey: @"NSSendsWholeSearchString"]];
[self setMaximumRecents: [aDecoder decodeIntForKey: @"NSMaximumRecents"]];
}
else
{
[self setSearchButtonCell: [aDecoder decodeObject]];
[self setCancelButtonCell: [aDecoder decodeObject]];
[self setRecentsAutosaveName: [aDecoder decodeObject]];
[aDecoder decodeValueOfObjCType: @encode(BOOL) at: &_sends_whole_search_string];
[aDecoder decodeValueOfObjCType: @encode(unsigned int) at: &_max_recents];
}
[self resetCancelButtonCell];
[self resetSearchButtonCell];
}
return self;
}
@end /* NSSearchFieldCell */
@implementation NSSearchFieldCell (Private)
/* Set up a default template
*/
- (NSMenu *) _buildTemplate
{
NSMenu *template;
NSMenuItem *item;
template = [[NSMenu alloc] init];
item = [[NSMenuItem alloc] initWithTitle: @"Recent searches"
action: NULL
keyEquivalent: @""];
[item setTag: NSSearchFieldRecentsTitleMenuItemTag];
[template addItem: item];
RELEASE(item);
item = [[NSMenuItem alloc] initWithTitle: @"Recent search item"
action: @selector(search:)
keyEquivalent: @""];
[item setTag: NSSearchFieldRecentsMenuItemTag];
[template addItem: item];
RELEASE(item);
item = [[NSMenuItem alloc] initWithTitle: @"Clear recent searches"
action: @selector(_clearSearches:)
keyEquivalent: @""];
[item setTag: NSSearchFieldClearRecentsMenuItemTag];
[item setTarget: self];
[template addItem: item];
RELEASE(item);
item = [[NSMenuItem alloc] initWithTitle: @"No recent searches"
action: NULL
keyEquivalent: @""];
[item setTag: NSSearchFieldNoRecentsMenuItemTag];
[template addItem: item];
RELEASE(item);
return template;
}
- (void) _openPopup: (id)sender
{
NSMenu *template;
NSMenu *popupmenu;
NSMenuView *mr;
NSWindow *cvWin;
NSRect cellFrame;
int i;
int recentCount = [_recent_searches count];
// NSRect textRect;
template = [self searchMenuTemplate];
popupmenu = [[NSMenu alloc] init];
// Fill the popup menu
for (i = 0; i < [template numberOfItems]; i++)
{
int tag;
NSMenuItem *item, *newItem = nil;
item = (NSMenuItem*)[template itemAtIndex: i];
tag = [item tag];
if (tag == NSSearchFieldRecentsTitleMenuItemTag)
{
if (recentCount > 0) // only show items with this tag if there are recent searches
{
newItem = [[item copy] autorelease];
}
}
else if (tag == NSSearchFieldClearRecentsMenuItemTag)
{
if (recentCount > 0) // only show items with this tag if there are recent searches
{
newItem = [[item copy] autorelease];
[newItem setTarget:self];
[newItem setAction:@selector(_clearSearches:)];
}
}
else if (tag == NSSearchFieldNoRecentsMenuItemTag)
{
if (recentCount == 0) // only show items with this tag if there are NO recent searches
{
newItem = [[item copy] autorelease];
}
}
else if (tag == NSSearchFieldRecentsMenuItemTag)
{
int j;
for (j = 0; j < recentCount; j++)
{
NSMenuItem *searchItem = [popupmenu addItemWithTitle:
[_recent_searches objectAtIndex: j]
action:
@selector(_searchForRecent:)
keyEquivalent:
[item keyEquivalent]];
[searchItem setTarget:self];
}
}
else // copy all other items without special tags from the template into the popup
{
newItem = [[item copy] autorelease];
}
if (newItem != nil)
{
[popupmenu addItem:newItem];
}
}
// Prepare to display the popup
cvWin = [_control_view window];
cellFrame = [_control_view frame];
cellFrame = [[_control_view superview] convertRect:cellFrame toView:nil]; // convert to window coordinates
cellFrame.origin = [cvWin convertBaseToScreen:cellFrame.origin]; // convert to screen coordinates
mr = [popupmenu menuRepresentation];
// Ask the MenuView to attach the menu to this rect
[mr setWindowFrameForAttachingToRect: cellFrame
onScreen: [cvWin screen]
preferredEdge: NSMinYEdge
popUpSelectedItem: -1];
// Last, display the window
[[mr window] orderFrontRegardless];
[mr mouseDown:[NSApp currentEvent]];
AUTORELEASE(popupmenu);
}
- (void) _searchForRecent: (id)sender
{
NSString *searchTerm = [sender title];
[(id)_control_view setStringValue:searchTerm];
[self performClick:self]; // do the search
}
- (void) _clearSearches: (id)sender
{
[self setRecentSearches: [NSArray array]];
}
- (void) _loadSearches
{
NSArray *list;
NSString *name = [self recentsAutosaveName];
if (name)
{
list = [[NSUserDefaults standardUserDefaults]
stringArrayForKey: name];
[self setRecentSearches: list];
}
}
- (void) _saveSearches
{
NSArray *list = [self recentSearches];
NSString *name = [self recentsAutosaveName];
if (name && list)
{
[[NSUserDefaults standardUserDefaults]
setObject: list forKey: name];
}
}
@end /* NSSearchFieldCell Private */