/*

 * 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. 

 */

#if USE(PLUGIN_HOST_PROCESS)

#import "WebTextInputWindowController.h"

#import <WebKitSystemInterface.h>

@interface WebTextInputPanel : NSPanel {

    NSTextView *_inputTextView;

}

- (NSTextInputContext *)_inputContext;

- (BOOL)_interpretKeyEvent:(NSEvent *)event string:(NSString **)string;

@end

#define inputWindowHeight 20

@implementation WebTextInputPanel

- (void)dealloc

{

    [[NSNotificationCenter defaultCenter] removeObserver:self];

    [_inputTextView release];

    [super dealloc];

}

- (id)init

{

    self = [super initWithContentRect:NSZeroRect styleMask:WKGetInputPanelWindowStyle() 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, inputWindowHeight);

    [self setFrame:frame display:NO];

    _inputTextView = [[NSTextView alloc] initWithFrame:[self.contentView frame]];        

    _inputTextView.autoresizingMask = NSViewWidthSizable | NSViewHeightSizable | NSViewMaxXMargin | NSViewMinXMargin | NSViewMaxYMargin | NSViewMinYMargin;

    NSScrollView* scrollView = [[NSScrollView alloc] initWithFrame:[self.contentView frame]];

    scrollView.documentView = _inputTextView;

    self.contentView = scrollView;

    [scrollView release];

    [self setFloatingPanel:YES];

    [[NSNotificationCenter defaultCenter] addObserver:self

                                             selector:@selector(_keyboardInputSourceChanged:)

                                                 name:NSTextInputContextKeyboardSelectionDidChangeNotification

                                               object:nil];

    return self;

}

- (void)_keyboardInputSourceChanged:(NSNotification *)notification

{

    [_inputTextView setString:@""];

    [self orderOut:nil];

}

- (BOOL)_interpretKeyEvent:(NSEvent *)event string:(NSString **)string

{

    BOOL hadMarkedText = [_inputTextView hasMarkedText];

    *string = nil;

    if (![[_inputTextView inputContext] handleEvent:event])

        return NO;

    if ([_inputTextView hasMarkedText]) {

        // Don't show the input method window for dead keys

        if ([[event characters] length] > 0)

            [self orderFront:nil];

        return YES;

    }

    if (hadMarkedText) {

        [self orderOut:nil];

        NSString *text = [[_inputTextView textStorage] string];

        if ([text length] > 0)

            *string = [[text copy] autorelease];

    }

    [_inputTextView setString:@""];

    return hadMarkedText;

}

- (NSTextInputContext *)_inputContext

{

    return [_inputTextView inputContext];

}

@end

@implementation WebTextInputWindowController

+ (WebTextInputWindowController *)sharedTextInputWindowController

{

    static WebTextInputWindowController *textInputWindowController;

    if (!textInputWindowController)

        textInputWindowController = [[WebTextInputWindowController alloc] init];

    return textInputWindowController;

}

- (id)init

{

    self = [super init];

    if (!self)

        return nil;

    _panel = [[WebTextInputPanel alloc] init];

    return self;

}

- (NSTextInputContext *)inputContext

{

    return [_panel _inputContext];

}

- (BOOL)interpretKeyEvent:(NSEvent *)event string:(NSString **)string

{

    return [_panel _interpretKeyEvent:event string:string];

}

@end

#endif // USE(PLUGIN_HOST_PROCESS)