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/*
* Copyright (C) 2009 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Modified by Josh Aas of Mozilla Corporation.
*/
#import "ComplexTextInputPanel.h"
#if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_5
@interface NSView (SnowLeopardMethods)
- (NSTextInputContext *)inputContext;
@end
// This is actually an NSTextInputContext method, but we can't declare
// that since the whole class is 10.6+.
@interface NSObject (SnowLeopardMethods)
- (BOOL)handleEvent:(NSEvent *)theEvent;
@end
static NSString* const NSTextInputContextKeyboardSelectionDidChangeNotification =
@"NSTextInputContextKeyboardSelectionDidChangeNotification";
#endif
#define kInputWindowHeight 20
@implementation ComplexTextInputPanel
+ (ComplexTextInputPanel*)sharedComplexTextInputPanel
{
static ComplexTextInputPanel *sComplexTextInputPanel;
if (!sComplexTextInputPanel)
sComplexTextInputPanel = [[ComplexTextInputPanel alloc] init];
return sComplexTextInputPanel;
}
- (id)init
{
// In the original Apple code the style mask is given by a function which is not open source.
// What could possibly be worth hiding in that function, I do not know.
// Courtesy of gdb: stylemask: 011000011111, 0x61f
self = [super initWithContentRect:NSZeroRect styleMask:0x61f backing:NSBackingStoreBuffered defer:YES];
if (!self)
return nil;
// Set the frame size.
NSRect visibleFrame = [[NSScreen mainScreen] visibleFrame];
NSRect frame = NSMakeRect(visibleFrame.origin.x, visibleFrame.origin.y, visibleFrame.size.width, kInputWindowHeight);
[self setFrame:frame display:NO];
mInputTextView = [[NSTextView alloc] initWithFrame:[self.contentView frame]];
mInputTextView.autoresizingMask = NSViewWidthSizable | NSViewHeightSizable | NSViewMaxXMargin | NSViewMinXMargin | NSViewMaxYMargin | NSViewMinYMargin;
NSScrollView* scrollView = [[NSScrollView alloc] initWithFrame:[self.contentView frame]];
scrollView.documentView = mInputTextView;
self.contentView = scrollView;
[scrollView release];
[self setFloatingPanel:YES];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardInputSourceChanged:)
name:NSTextInputContextKeyboardSelectionDidChangeNotification
object:nil];
return self;
}
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
[mInputTextView release];
[super dealloc];
}
- (void)keyboardInputSourceChanged:(NSNotification *)notification
{
[self cancelComposition];
}
- (BOOL)interpretKeyEvent:(NSEvent*)event string:(NSString**)string
{
BOOL hadMarkedText = [mInputTextView hasMarkedText];
*string = nil;
if (![[mInputTextView inputContext] handleEvent:event])
return NO;
if ([mInputTextView hasMarkedText]) {
// Don't show the input method window for dead keys
if ([[event characters] length] > 0)
[self orderFront:nil];
return YES;
} else {
[self orderOut:nil];
NSString *text = [[mInputTextView textStorage] string];
if ([text length] > 0)
*string = [[text copy] autorelease];
}
[mInputTextView setString:@""];
return hadMarkedText;
}
- (NSTextInputContext*)inputContext
{
return [mInputTextView inputContext];
}
- (void)cancelComposition
{
[mInputTextView setString:@""];
[self orderOut:nil];
}
- (BOOL)inComposition
{
return [mInputTextView hasMarkedText];
}
@end
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