/* * 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" #import <Cocoa/Cocoa.h> #include <algorithm> #include "mozilla/Preferences.h" #include "nsChildView.h" using namespace mozilla; extern "C" OSStatus TSMProcessRawKeyEvent(EventRef anEvent); #define kInputWindowHeight 20 @interface ComplexTextInputPanelImpl : NSPanel { NSTextView *mInputTextView; } + (ComplexTextInputPanelImpl*)sharedComplexTextInputPanelImpl; - (NSTextInputContext*)inputContext; - (void)interpretKeyEvent:(NSEvent*)event string:(NSString**)string; - (void)cancelComposition; - (BOOL)inComposition; // This places the text input panel fully onscreen and below the lower left // corner of the focused plugin. - (void)adjustTo:(NSPoint)point; @end @implementation ComplexTextInputPanelImpl + (ComplexTextInputPanelImpl*)sharedComplexTextInputPanelImpl { static ComplexTextInputPanelImpl *sComplexTextInputPanelImpl; if (!sComplexTextInputPanelImpl) sComplexTextInputPanelImpl = [[ComplexTextInputPanelImpl alloc] init]; return sComplexTextInputPanelImpl; } - (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 { static int8_t sDoCancel = -1; if (!sDoCancel || ![self inComposition]) { return; } if (sDoCancel < 0) { bool cancelComposition = false; static const char* kPrefName = "ui.plugin.cancel_composition_at_input_source_changed"; nsresult rv = Preferences::GetBool(kPrefName, &cancelComposition); NS_ENSURE_SUCCESS(rv, ); sDoCancel = cancelComposition ? 1 : 0; } if (sDoCancel) { [self cancelComposition]; } } - (void)interpretKeyEvent:(NSEvent*)event string:(NSString**)string { *string = nil; if (![[mInputTextView inputContext] handleEvent:event]) { return; } if ([mInputTextView hasMarkedText]) { // Don't show the input method window for dead keys if ([[event characters] length] > 0) { [self orderFront:nil]; } return; } else { [self orderOut:nil]; NSString *text = [[mInputTextView textStorage] string]; if ([text length] > 0) { *string = [[text copy] autorelease]; } } [mInputTextView setString:@""]; } - (NSTextInputContext*)inputContext { return [mInputTextView inputContext]; } - (void)cancelComposition { [mInputTextView setString:@""]; [self orderOut:nil]; } - (BOOL)inComposition { return [mInputTextView hasMarkedText]; } - (void)adjustTo:(NSPoint)point { NSRect selfRect = [self frame]; NSRect rect = NSMakeRect(point.x, point.y - selfRect.size.height, 500, selfRect.size.height); // Adjust to screen. NSRect screenRect = [[NSScreen mainScreen] visibleFrame]; if (rect.origin.x < screenRect.origin.x) { rect.origin.x = screenRect.origin.x; } if (rect.origin.y < screenRect.origin.y) { rect.origin.y = screenRect.origin.y; } CGFloat xMostOfScreen = screenRect.origin.x + screenRect.size.width; CGFloat yMostOfScreen = screenRect.origin.y + screenRect.size.height; CGFloat xMost = rect.origin.x + rect.size.width; CGFloat yMost = rect.origin.y + rect.size.height; if (xMostOfScreen < xMost) { rect.origin.x -= xMost - xMostOfScreen; } if (yMostOfScreen < yMost) { rect.origin.y -= yMost - yMostOfScreen; } [self setFrame:rect display:[self isVisible]]; } @end class ComplexTextInputPanelPrivate : public ComplexTextInputPanel { public: ComplexTextInputPanelPrivate(); virtual void InterpretKeyEvent(void* aEvent, nsAString& aOutText); virtual bool IsInComposition(); virtual void PlacePanel(int32_t x, int32_t y); virtual void* GetInputContext() { return [mPanel inputContext]; } virtual void CancelComposition() { [mPanel cancelComposition]; } private: ~ComplexTextInputPanelPrivate(); ComplexTextInputPanelImpl* mPanel; }; ComplexTextInputPanelPrivate::ComplexTextInputPanelPrivate() { mPanel = [[ComplexTextInputPanelImpl alloc] init]; } ComplexTextInputPanelPrivate::~ComplexTextInputPanelPrivate() { [mPanel release]; } ComplexTextInputPanel* ComplexTextInputPanel::GetSharedComplexTextInputPanel() { static ComplexTextInputPanelPrivate *sComplexTextInputPanelPrivate; if (!sComplexTextInputPanelPrivate) { sComplexTextInputPanelPrivate = new ComplexTextInputPanelPrivate(); } return sComplexTextInputPanelPrivate; } void ComplexTextInputPanelPrivate::InterpretKeyEvent(void* aEvent, nsAString& aOutText) { NSString* textString = nil; [mPanel interpretKeyEvent:(NSEvent*)aEvent string:&textString]; if (textString) { nsCocoaUtils::GetStringForNSString(textString, aOutText); } } bool ComplexTextInputPanelPrivate::IsInComposition() { return !![mPanel inComposition]; } void ComplexTextInputPanelPrivate::PlacePanel(int32_t x, int32_t y) { [mPanel adjustTo:NSMakePoint(x, y)]; }