1 /*

     2  * Copyright (C) 2009 Apple Inc. All Rights Reserved.

     3  *

     4  * Redistribution and use in source and binary forms, with or without

     5  * modification, are permitted provided that the following conditions

     6  * are met:

     7  * 1. Redistributions of source code must retain the above copyright

     8  *    notice, this list of conditions and the following disclaimer.

     9  * 2. Redistributions in binary form must reproduce the above copyright

    10  *    notice, this list of conditions and the following disclaimer in the

    11  *    documentation and/or other materials provided with the distribution.

    12  *

    13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY

    14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR

    17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

    21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

    24  */

    25 

    26 #if USE(PLUGIN_HOST_PROCESS)

    27 

    28 #import "WebTextInputWindowController.h"

    29 

    30 #import <WebKitSystemInterface.h>

    31 

    32 @interface WebTextInputPanel : NSPanel {

    33     NSTextView *_inputTextView;

    34 }

    35 

    36 - (NSTextInputContext *)_inputContext;

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

    38 

    39 @end

    40 

    41 #define inputWindowHeight 20

    42 

    43 @implementation WebTextInputPanel

    44 

    45 - (void)dealloc

    46 {

    47     [[NSNotificationCenter defaultCenter] removeObserver:self];

    48     

    49     [_inputTextView release];

    50     

    51     [super dealloc];

    52 }

    53 

    54 - (id)init

    55 {

    56     self = [super initWithContentRect:NSZeroRect styleMask:WKGetInputPanelWindowStyle() backing:NSBackingStoreBuffered defer:YES];

    57     if (!self)

    58         return nil;

    59     

    60     // Set the frame size.

    61     NSRect visibleFrame = [[NSScreen mainScreen] visibleFrame];

    62     NSRect frame = NSMakeRect(visibleFrame.origin.x, visibleFrame.origin.y, visibleFrame.size.width, inputWindowHeight);

    63      

    64     [self setFrame:frame display:NO];

    65         

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

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

    68         

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

    70     scrollView.documentView = _inputTextView;

    71     self.contentView = scrollView;

    72     [scrollView release];

    73         

    74     [self setFloatingPanel:YES];

    75     

    76     [[NSNotificationCenter defaultCenter] addObserver:self

    77                                              selector:@selector(_keyboardInputSourceChanged:)

    78                                                  name:NSTextInputContextKeyboardSelectionDidChangeNotification

    79                                                object:nil];

    80 

    81     return self;

    82 }

    83 

    84 - (void)_keyboardInputSourceChanged:(NSNotification *)notification

    85 {

    86     [_inputTextView setString:@""];

    87     [self orderOut:nil];

    88 }

    89 

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

    91 {

    92     BOOL hadMarkedText = [_inputTextView hasMarkedText];

    93  

    94     *string = nil;

    95     

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

    97         return NO;

    98     

    99     if ([_inputTextView hasMarkedText]) {

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

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

   102             [self orderFront:nil];

   103 

   104         return YES;

   105     }

   106     

   107     if (hadMarkedText) {

   108         [self orderOut:nil];

   109 

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

   111         if ([text length] > 0)

   112             *string = [[text copy] autorelease];

   113     }

   114             

   115     [_inputTextView setString:@""];

   116     return hadMarkedText;

   117 }

   118 

   119 - (NSTextInputContext *)_inputContext

   120 {

   121     return [_inputTextView inputContext];

   122 }

   123 

   124 @end

   125 

   126 @implementation WebTextInputWindowController

   127 

   128 + (WebTextInputWindowController *)sharedTextInputWindowController

   129 {

   130     static WebTextInputWindowController *textInputWindowController;

   131     if (!textInputWindowController)

   132         textInputWindowController = [[WebTextInputWindowController alloc] init];

   133     

   134     return textInputWindowController;

   135 }

   136 

   137 - (id)init

   138 {

   139     self = [super init];

   140     if (!self)

   141         return nil;

   142     

   143     _panel = [[WebTextInputPanel alloc] init];

   144     

   145     return self;

   146 }

   147         

   148 - (NSTextInputContext *)inputContext

   149 {

   150     return [_panel _inputContext];

   151 }

   152 

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

   154 {

   155     return [_panel _interpretKeyEvent:event string:string];

   156 }

   157 

   158 @end

   159 

   160 #endif // USE(PLUGIN_HOST_PROCESS)

   161