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https://github.com/cappuccino/cappuccino.git
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Aparajita Fishman
4f377bcebe
Compiled all files individually: - Added missing imports. - Added @class/@global declarations to break circular dependencies. - Misc. code cleanup. Conflicts: AppKit/CPWindow/_CPWindow.j AppKit/Platform/DOM/CPPlatformWindow+DOM.j
101 lines
3.5 KiB
Plaintext
101 lines
3.5 KiB
Plaintext
/*
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* _CPPopUpListDataSource.j
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* AppKit
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*
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* Created by Aparajita Fishman.
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* Copyright (c) 2012, The Cappuccino Foundation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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@import <Foundation/CPObject.j>
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@import <Foundation/CPException.j>
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/*!
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This abstract base class defines the methods that delegates of _CPPopUpList must implement.
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You may either subclass this class to use the default implementation of
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list:objectValueForItemAtIndex: and list:displayValueForObjectValue: or use your
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own class and define these methods yourself.
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*/
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@implementation _CPPopUpListDataSource : CPObject
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/*!
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Returns whether the given object conforms to the minimum protocol defined by this class.
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*/
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+ (BOOL)protocolIsImplementedByObject:(id)anObject
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{
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return (anObject &&
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[anObject respondsToSelector:@selector(numberOfItemsInList:)] &&
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[anObject respondsToSelector:@selector(numberOfVisibleItemsInList:)] &&
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[anObject respondsToSelector:@selector(list:objectValueForItemAtIndex:)] &&
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[anObject respondsToSelector:@selector(list:displayValueForObjectValue:)] &&
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[anObject respondsToSelector:@selector(list:stringValueForObjectValue:)]);
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}
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/*!
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Returns the number of items managed by the list.
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*/
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- (int)numberOfItemsInList:(_CPPopUpList)aList
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{
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_CPRaiseInvalidAbstractInvocation(self, _cmd);
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}
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/*!
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Returns the number of items to display at one time.
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*/
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- (int)numberOfVisibleItemsInList:(_CPPopUpList)aList
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{
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_CPRaiseInvalidAbstractInvocation(self, _cmd);
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}
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/*!
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Returns the data for a given row index.
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*/
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- (id)list:(_CPPopUpList)aList objectValueForItemAtIndex:(int)index
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{
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_CPRaiseInvalidAbstractInvocation(self, _cmd);
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}
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/*!
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Returns a value to display for a single row in the list. Subclasses should override
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this if the table data needs to be converted or formatted in some way to be displayed.
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If your data source use a data representation other than CPStrings, you must override
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this method and return the appropriate data when there are no search results.
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If the _CPPopUpList's table uses a custom data view, this method should return a value suitable
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for sending to the setObjectValue: method of the data view.
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@param aValue Data for the given row
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@return A value to be displayed in the list
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*/
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- (id)list:(_CPPopUpList)aList displayValueForObjectValue:(id)aValue
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{
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return aValue || @"";
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}
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/*!
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Returns a single-line string representation for an object value. Subclasses should override
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this if the object data is not convertible to a simple single-line string.
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@param aValue Table data to be converted to a string
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@return A value to be displayed in the autocomplete field
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*/
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- (CPString)list:(_CPPopUpList)aList stringValueForObjectValue:(id)aValue
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{
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return String(aValue);
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}
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@end
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