Implemented soft keyboard support, and added a workarond for engines that can't handle mouse-down and mouse-up events coming in two subsequent calls to pollEvent()

svn-id: r29557

8 files changed, 266 insertions, 36 deletions

diff --git a/backends/platform/iphone/iphone_common.h b/backends/platform/iphone/iphone_common.h
index 287f797472..567f54800e 100644
--- a/backends/platform/iphone/iphone_common.h
+++ b/backends/platform/iphone/iphone_common.h
@@ -29,7 +29,8 @@ enum InputEvent {
 	kInputMouseUp,
 	kInputMouseDragged,
 	kInputMouseSecondToggled,
-	kInputOrientationChanged
+	kInputOrientationChanged,
+	kInputKeyPressed
 };
 
 // We need this to be able to call functions from/in Objective-C.
diff --git a/backends/platform/iphone/iphone_keyboard.h b/backends/platform/iphone/iphone_keyboard.h
new file mode 100644
index 0000000000..17a3836efd
--- /dev/null
+++ b/backends/platform/iphone/iphone_keyboard.h
@@ -0,0 +1,51 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#import <UIKit/UIKit.h>
+#import <UIKit/UITextView.h>
+
+@protocol KeyboardInputProtocol
+- (void)handleKeyPress:(unichar)c;
+@end
+
+@interface SoftKeyboard : UIKeyboard<KeyboardInputProtocol> {
+	id inputDelegate;
+	UITextView* inputView;
+}
+
+- (id)initWithFrame:(CGRect)frame;
+- (UITextView*)inputView;
+- (void)setInputDelegate:(id)delegate;
+- (void)handleKeyPress:(unichar)c;
+
+@end
+
+@interface TextInputHandler : UITextView {
+	SoftKeyboard* softKeyboard;
+}
+
+- (id)initWithKeyboard:(SoftKeyboard*)keyboard;
+
+@end
diff --git a/backends/platform/iphone/iphone_keyboard.m b/backends/platform/iphone/iphone_keyboard.m
new file mode 100644
index 0000000000..923b7be46d
--- /dev/null
+++ b/backends/platform/iphone/iphone_keyboard.m
@@ -0,0 +1,88 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#import "iphone_keyboard.h"
+
+// Override settings of the default keyboard implementation
+@implementation UIKeyboardImpl (DisableFeatures)
+
+- (BOOL)autoCapitalizationPreference {
+	return false;
+}
+
+- (BOOL)autoCorrectionPreference {
+	return false;
+}
+
+@end
+
+@implementation TextInputHandler
+
+- (id)initWithKeyboard:(SoftKeyboard*)keyboard; {
+	self = [super initWithFrame:CGRectMake(0.0f, 0.0f, 0.0f, 0.0f)];
+ 	softKeyboard = keyboard;
+	return self;
+}
+
+- (BOOL)webView:(id)fp8 shouldDeleteDOMRange:(id)fp12 {
+	[softKeyboard handleKeyPress:0x08];
+}
+
+- (BOOL)webView:(id)fp8 shouldInsertText:(id)character
+                       replacingDOMRange:(id)fp16
+                             givenAction:(int)fp20 {
+
+	if ([character length] != 1) {
+		[NSException raise:@"Unsupported" format:@"Unhandled multi-char insert!"];
+		return false;
+	}
+	[softKeyboard handleKeyPress:[character characterAtIndex:0]];
+}
+
+@end
+
+
+@implementation SoftKeyboard
+
+- (id)initWithFrame:(CGRect)frame {
+	self = [super initWithFrame:frame];
+	inputDelegate = nil;
+	inputView = [[TextInputHandler alloc] initWithKeyboard:self];
+	return self;
+}
+
+- (UITextView*)inputView {
+	return inputView;
+}
+
+- (void)setInputDelegate:(id)delegate {
+	inputDelegate = delegate;
+}
+
+- (void)handleKeyPress:(unichar)c {
+	[inputDelegate handleKeyPress:c];
+}
+
+@end
\ No newline at end of file
diff --git a/backends/platform/iphone/iphone_video.h b/backends/platform/iphone/iphone_video.h
index 167b74705b..9a0492bad3 100644
--- a/backends/platform/iphone/iphone_video.h
+++ b/backends/platform/iphone/iphone_video.h
@@ -33,13 +33,14 @@
 #import <CoreSurface/CoreSurface.h>
 #import <LayerKit/LKLayer.h>
 
+#import "iphone_keyboard.h"
 
 @interface iPhoneView : UIView
 {
 	CoreSurfaceBufferRef _screenSurface;
 	NSMutableArray* _events;
 	NSLock* _lock;
-	UIKeyboardImpl* _keyboard;
+	SoftKeyboard* _keyboardView;
 	LKLayer* _screenLayer;
 
 	int _fullWidth;
@@ -64,4 +65,6 @@
 
 @end
 
+
+
 #endif /* _IPHONE_VIDEO__H */
diff --git a/backends/platform/iphone/iphone_video.m b/backends/platform/iphone/iphone_video.m
index d3989e3838..df15f61a6b 100644
--- a/backends/platform/iphone/iphone_video.m
+++ b/backends/platform/iphone/iphone_video.m
@@ -32,6 +32,7 @@
 #import <Foundation/Foundation.h>
 #import <CoreSurface/CoreSurface.h>
 #import <LayerKit/LKLayer.h>
+#import <UIKit/UIKeyboardLayoutQWERTY.h>
 
 static iPhoneView *sharedInstance = nil;
 static int _width = 0;
@@ -108,15 +109,17 @@ bool getLocalMouseCoords(CGPoint *point) {
 	_screenLayer = nil;
 
 	sharedInstance = self;
-
-	_keyboard = [UIKeyboardImpl sharedInstance];
-	//[self addSubview:_keyboard];
+	_keyboardView = nil;
 
 	return self;
 }
 
 -(void) dealloc {
 	[super dealloc];
+	
+	if (_keyboardView != nil) {
+		[_keyboardView dealloc];		
+	}
 }
 
 - (CoreSurfaceBufferRef)getSurface {
@@ -169,6 +172,11 @@ bool getLocalMouseCoords(CGPoint *point) {
 
 	LKLayer* screenLayer = [[LKLayer layer] retain];
 	
+	if (_keyboardView != nil) {
+		[_keyboardView removeFromSuperview];
+		[[_keyboardView inputView] removeFromSuperview];
+	}
+
 	if (_landscape) {
 		float ratioDifference = ((float)_width / (float)_height) / ((float)_fullWidth / (float)_fullHeight);
 		int rectWidth, rectHeight;
@@ -187,10 +195,20 @@ bool getLocalMouseCoords(CGPoint *point) {
 		//printf("Rect: %i, %i, %i, %i\n", _widthOffset, _heightOffset, rectWidth + _widthOffset, rectHeight + _heightOffset);
 		_screenRect = CGRectMake(_widthOffset, _heightOffset, rectWidth + _widthOffset, rectHeight + _heightOffset);
 		[screenLayer setFrame: _screenRect];		
-	} else {
+	} else {			
 		float ratio = (float)_height / (float)_width;
 		_screenRect = CGRectMake(0, 0, _fullWidth, _fullWidth * ratio);
-		[screenLayer setFrame: _screenRect];				
+		[screenLayer setFrame: _screenRect];
+
+		CGRect keyFrame = CGRectMake(0.0f, _screenRect.size.height, _fullWidth, _fullHeight);
+		if (_keyboardView == nil) {
+			_keyboardView = [[SoftKeyboard alloc] initWithFrame:keyFrame];
+			[_keyboardView setInputDelegate:self];			
+		}
+		
+		[self addSubview:[_keyboardView inputView]];
+		[self addSubview: _keyboardView];
+		[[_keyboardView inputView] becomeFirstResponder];
 	}
 
 	[screenLayer setContents: _screenSurface];
@@ -306,20 +324,24 @@ bool getLocalMouseCoords(CGPoint *point) {
 }
 
 - (void)mouseEntered:(GSEvent*)event {
-	//printf("mouseEntered()\n");
+	printf("mouseEntered()\n");
 	// struct CGPoint point = GSEventGetLocationInWindow(event);
+	// 
+	// if (!getLocalMouseCoords(&point))
+	// 	return;
+	// 
 	// [self addEvent:
 	// 	[[NSDictionary alloc] initWithObjectsAndKeys:
-	// 	 [NSNumber numberWithInt:kInputMouseSecondStartDrag], @"type",
-	// 	 [NSNumber numberWithFloat:(point.x/_fullWidth)], @"x",
-	// 	 [NSNumber numberWithFloat:(point.y/_fullHeight)], @"y",
+	// 	 [NSNumber numberWithInt:kInputMouseSecondToggled], @"type",
+	// 	 [NSNumber numberWithFloat:point.x], @"x",
+	// 	 [NSNumber numberWithFloat:point.y], @"y",
 	// 	 nil
 	// 	]
 	// ];
 }
 
 - (void)mouseExited:(GSEvent*)event {
-	//printf("mouseExited().\n");
+	printf("mouseExited().\n");
 	// [self addEvent:
 	// 	[[NSDictionary alloc] initWithObjectsAndKeys:
 	// 	 @"mouseExited", @"type",
@@ -330,12 +352,12 @@ bool getLocalMouseCoords(CGPoint *point) {
 
 - (void)mouseMoved:(GSEvent*)event
 {
-	//printf("mouseMoved()\n");
+	printf("mouseMoved()\n");
 	struct CGPoint point = GSEventGetLocationInWindow(event);
 	
 	if (!getLocalMouseCoords(&point))
 		return;
-
+	
 	[self addEvent:
 		[[NSDictionary alloc] initWithObjectsAndKeys:
 		 [NSNumber numberWithInt:kInputMouseSecondToggled], @"type",
@@ -346,23 +368,12 @@ bool getLocalMouseCoords(CGPoint *point) {
 	];
 }
 
-- (void)keyDown:(GSEvent*)event
-{
-	printf("keyDown()\n");
+- (void)handleKeyPress:(unichar)c {
 	[self addEvent:
 		[[NSDictionary alloc] initWithObjectsAndKeys:
-		 @"keyDown", @"type",
-		 nil
-		]
-	];
-}
-
-- (void)keyUp:(GSEvent*)event
-{
-	printf("keyUp()\n");
-	[self addEvent:
-		[[NSDictionary alloc] initWithObjectsAndKeys:
-		  @"keyUp", @"type",
+		 [NSNumber numberWithInt:kInputKeyPressed], @"type",
+		 [NSNumber numberWithFloat:(float)c], @"x",
+		 [NSNumber numberWithFloat:0], @"y",
 		 nil
 		]
 	];
diff --git a/backends/platform/iphone/module.mk b/backends/platform/iphone/module.mk
index 2d26c26e59..47461ad2b2 100644
--- a/backends/platform/iphone/module.mk
+++ b/backends/platform/iphone/module.mk
@@ -3,7 +3,8 @@ MODULE := backends/platform/iphone
 MODULE_OBJS := \
 	osys_iphone.o \
 	iphone_main.o \
-	iphone_video.o
+	iphone_video.o \
+	iphone_keyboard.o
 
 MODULE_DIRS += \
 	backends/platform/iphone/
diff --git a/backends/platform/iphone/osys_iphone.cpp b/backends/platform/iphone/osys_iphone.cpp
index 6f1d82fb2c..8c029d10b5 100644
--- a/backends/platform/iphone/osys_iphone.cpp
+++ b/backends/platform/iphone/osys_iphone.cpp
@@ -59,7 +59,8 @@ OSystem_IPHONE::OSystem_IPHONE() :
 	_savefile(NULL), _mixer(NULL), _timer(NULL), _offscreen(NULL),
 	_overlayVisible(false), _overlayBuffer(NULL), _fullscreen(NULL),
 	_mouseHeight(0), _mouseWidth(0), _mouseBuf(NULL), _lastMouseTap(0),
-	_secondaryTapped(false), _lastSecondaryTap(0), _landscapeMode(true)
+	_secondaryTapped(false), _lastSecondaryTap(0), _landscapeMode(true),
+	_needEventRestPeriod(false)
 {	
 	_queuedInputEvent.type = (Common::EventType)0;
 }
@@ -495,6 +496,13 @@ bool OSystem_IPHONE::pollEvent(Common::Event &event) {
 		_timerCallbackNext = curTime + _timerCallbackTimer;
 	}
 	
+	if (_needEventRestPeriod) {
+		// Workaround: Some engines can't handle mouse-down and mouse-up events
+		// appearing right after each other, without a call returning no input in between.
+		_needEventRestPeriod = false;
+		return false;
+	}
+
 	if (_queuedInputEvent.type != (Common::EventType)0) {
 		event = _queuedInputEvent;
 		_queuedInputEvent.type = (Common::EventType)0;
@@ -535,7 +543,8 @@ bool OSystem_IPHONE::pollEvent(Common::Event &event) {
 					_queuedInputEvent.mouse.x = _mouseX;
 					_queuedInputEvent.mouse.y = _mouseY;
 					_lastMouseTap = curTime;
-					
+					_needEventRestPeriod = true;
+
 					// if (curTime - _lastMouseTap < 250 && !_overlayVisible) {
 					// 	event.type = Common::EVENT_KEYDOWN;
 					// 	_queuedInputEvent.type = Common::EVENT_KEYUP;
@@ -578,7 +587,8 @@ bool OSystem_IPHONE::pollEvent(Common::Event &event) {
 
 							event.kbd.flags = _queuedInputEvent.kbd.flags = 0;
 							event.kbd.keycode = _queuedInputEvent.kbd.keycode = Common::KEYCODE_F5;
-							event.kbd.ascii = _queuedInputEvent.kbd.ascii = 27;
+							event.kbd.ascii = _queuedInputEvent.kbd.ascii = Common::ASCII_F5;
+							_needEventRestPeriod = true;
 						} else if (vecXNorm > -0.50 && vecXNorm < 0.50 && vecYNorm < -0.75) {
 							// Swipe up
 							event.type = Common::EVENT_KEYDOWN;
@@ -587,6 +597,7 @@ bool OSystem_IPHONE::pollEvent(Common::Event &event) {
 							event.kbd.flags = _queuedInputEvent.kbd.flags = 0;
 							event.kbd.keycode = _queuedInputEvent.kbd.keycode = Common::KEYCODE_1;
 							event.kbd.ascii = _queuedInputEvent.kbd.ascii = '1';
+							_needEventRestPeriod = true;
 						} else if (vecXNorm > 0.75 && vecYNorm >  -0.5 && vecYNorm < 0.5) {
 							// Swipe right
 							return false;
@@ -620,8 +631,8 @@ bool OSystem_IPHONE::pollEvent(Common::Event &event) {
 
 						event.kbd.flags = _queuedInputEvent.kbd.flags = 0;
 						event.kbd.keycode = _queuedInputEvent.kbd.keycode = Common::KEYCODE_ESCAPE;
-						event.kbd.ascii = _queuedInputEvent.kbd.ascii = 27;		
-				
+						event.kbd.ascii = _queuedInputEvent.kbd.ascii = Common::ASCII_ESCAPE;	
+						_needEventRestPeriod = true;	
 						_lastSecondaryTap = 0;
 					} else {
 						event.type = Common::EVENT_RBUTTONDOWN;
@@ -631,6 +642,7 @@ bool OSystem_IPHONE::pollEvent(Common::Event &event) {
 						_queuedInputEvent.mouse.x = _mouseX;
 						_queuedInputEvent.mouse.y = _mouseY;
 						_lastSecondaryTap = curTime;
+						_needEventRestPeriod = true;
 					}		
 				} else {
 					return false;
@@ -649,6 +661,68 @@ bool OSystem_IPHONE::pollEvent(Common::Event &event) {
 					_dirtyRects.push_back(Common::Rect(0, 0, _screenWidth, _screenHeight));
 				}				
 				break;
+			case kInputKeyPressed:
+				int keyPressed = (int)xUnit;
+				int ascii = keyPressed;
+				//printf("key: %i\n", keyPressed);
+
+				// We remap some of the iPhone keyboard keys.
+				// The first ten here are the row of symbols below the numeric keys.
+				switch (keyPressed) {
+					case 45:
+						keyPressed = Common::KEYCODE_F1;
+						ascii = Common::ASCII_F1;
+						break;
+					case 47:
+						keyPressed = Common::KEYCODE_F2;
+						ascii = Common::ASCII_F2;
+						break;
+					case 58:
+						keyPressed = Common::KEYCODE_F3;
+						ascii = Common::ASCII_F3;
+						break;
+					case 59:
+						keyPressed = Common::KEYCODE_F4;
+						ascii = Common::ASCII_F4;
+						break;
+					case 40:
+						keyPressed = Common::KEYCODE_F5;
+						ascii = Common::ASCII_F5;
+						break;
+					case 41:
+						keyPressed = Common::KEYCODE_F6;
+						ascii = Common::ASCII_F6;
+						break;
+					case 36:
+						keyPressed = Common::KEYCODE_F7;
+						ascii = Common::ASCII_F7;
+						break;
+					case 38:
+						keyPressed = Common::KEYCODE_F8;
+						ascii = Common::ASCII_F8;
+						break;
+					case 64:
+						keyPressed = Common::KEYCODE_F9;
+						ascii = Common::ASCII_F9;
+						break;
+					case 34:
+						keyPressed = Common::KEYCODE_F10;
+						ascii = Common::ASCII_F10;
+						break;
+					case 10:
+						keyPressed = Common::KEYCODE_RETURN;
+						ascii = Common::ASCII_RETURN;
+						break;
+				}
+				event.type = Common::EVENT_KEYDOWN;
+				_queuedInputEvent.type = Common::EVENT_KEYUP;
+
+				event.kbd.flags = _queuedInputEvent.kbd.flags = 0;
+				event.kbd.keycode = _queuedInputEvent.kbd.keycode = (Common::KeyCode)keyPressed;
+				event.kbd.ascii = _queuedInputEvent.kbd.ascii = ascii;
+				_needEventRestPeriod = true;				
+				break;
+				
 			default:
 				break;
 		}
diff --git a/backends/platform/iphone/osys_iphone.h b/backends/platform/iphone/osys_iphone.h
index 9abd8657e7..65d4b9744e 100644
--- a/backends/platform/iphone/osys_iphone.h
+++ b/backends/platform/iphone/osys_iphone.h
@@ -28,7 +28,7 @@
 #include "graphics/surface.h"
 
 #define AUDIO_BUFFERS 3
-#define WAVE_BUFFER_SIZE 2048
+#define WAVE_BUFFER_SIZE 4096
 #define AUDIO_SAMPLE_RATE 44100
 
 typedef void (*SoundProc)(void *param, byte *buf, int len);
@@ -74,6 +74,7 @@ protected:
 	long _lastMouseDown;
 	long _lastMouseTap;
 	Common::Event _queuedInputEvent;
+	bool _needEventRestPeriod;
 	bool _secondaryTapped;
 	long _lastSecondaryDown;
 	long _lastSecondaryTap;