From f6afd1e9699b891f1deee9058a1737e8c5744bd7 Mon Sep 17 00:00:00 2001
From: Bibiko <bibiko@eva.mpg.de>
Date: Tue, 11 Aug 2009 15:59:35 +0000
Subject: =?UTF-8?q?=E2=80=A2=20implemented=20the=20first=20working=20copy?=
 =?UTF-8?q?=20of=20SPTooltip=20-=20not=20yet=20finished=20=E2=80=A2=20adde?=
 =?UTF-8?q?d=20svn=20property=20"Id"?=
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Content-Transfer-Encoding: 8bit

---
 Source/SPTooltip.m | 280 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 280 insertions(+)

(limited to 'Source/SPTooltip.m')

diff --git a/Source/SPTooltip.m b/Source/SPTooltip.m
index c0cfd10f..0fce5f2a 100644
--- a/Source/SPTooltip.m
+++ b/Source/SPTooltip.m
@@ -29,6 +29,286 @@
 #import "SPTooltip.h"
 
 
+
+static float slow_in_out (float t)
+{
+	if(t < 1.0f)
+		t = 1.0f / (1.0f + exp((-t*12.0f)+6.0f));
+	if(t>1.0f) return 1.0f;
+	return t;
+}
+
+
+@interface SPTooltip (Private)
+- (void)setContent:(NSString *)content transparent:(BOOL)transparent;
+- (void)runUntilUserActivity;
+- (void)stopAnimation:(id)sender;
+@end
+
+@interface WebView (LeopardOnly)
+- (void)setDrawsBackground:(BOOL)drawsBackground;
+@end
+
 @implementation SPTooltip
+// ==================
+// = Setup/teardown =
+// ==================
++ (void)showWithObject:(id)content ofType:(NSString *)type transparent:(BOOL)transparent
+{
+	SPTooltip* tip = [SPTooltip new];
+	[tip setFrameTopLeftPoint:[NSEvent mouseLocation]];
+	// The tooltip will show itself automatically when the HTML is loaded
+	if([type isEqualToString:@"text"]) {
+		NSString* html = nil;
+		NSMutableString* text = [[(NSString*)content mutableCopy] autorelease];
+		if(text)
+		{
+			[text replaceOccurrencesOfString:@"&" withString:@"&amp;" options:0 range:NSMakeRange(0, [text length])];
+			[text replaceOccurrencesOfString:@"<" withString:@"&lt;" options:0 range:NSMakeRange(0, [text length])];
+			[text insertString:@"<pre>" atIndex:0];
+			[text appendString:@"</pre>"];
+			html = text;
+		}
+		else
+		{
+			html = @"Error";
+		}
+		[tip setContent:html transparent:transparent];
+	}
+	else if([type isEqualToString:@"html"])
+		[tip setContent:(NSString*)content transparent:transparent];
+		
+}
+
++ (void)showWithObject:(id)content atLocation:(NSPoint)point ofType:(NSString *)type transparent:(BOOL)transparent
+{
+	SPTooltip* tip = [SPTooltip new];
+	[tip setFrameTopLeftPoint:point];
+	// The tooltip will show itself automatically when the HTML is loaded
+	if([type isEqualToString:@"text"]) {
+		NSString* html = nil;
+		NSMutableString* text = [[(NSString*)content mutableCopy] autorelease];
+		if(text)
+		{
+			[text replaceOccurrencesOfString:@"&" withString:@"&amp;" options:0 range:NSMakeRange(0, [text length])];
+			[text replaceOccurrencesOfString:@"<" withString:@"&lt;" options:0 range:NSMakeRange(0, [text length])];
+			[text insertString:@"<pre>" atIndex:0];
+			[text appendString:@"</pre>"];
+			html = text;
+		}
+		else
+		{
+			html = @"Error";
+		}
+		[tip setContent:html transparent:transparent];
+	}
+	else if([type isEqualToString:@"html"])
+		[tip setContent:(NSString*)content transparent:transparent];
+}
+
+- (id)init;
+{
+	if(self = [self initWithContentRect:NSMakeRect(1,1,1,1) styleMask:NSBorderlessWindowMask backing:NSBackingStoreBuffered defer:NO])
+	{
+		[self setReleasedWhenClosed:YES];
+		[self setAlphaValue:0.97f];
+		[self setOpaque:NO];
+		[self setBackgroundColor:[NSColor colorWithDeviceRed:1.0f green:0.96f blue:0.76f alpha:1.0f]];
+		[self setBackgroundColor:[NSColor clearColor]];
+		[self setHasShadow:YES];
+		[self setLevel:NSStatusWindowLevel];
+		[self setHidesOnDeactivate:YES];
+		[self setIgnoresMouseEvents:YES];
+
+		SPTooltipPreferencesIdentifier = @"SequelPro Tooltip";
+
+		webPreferences = [[WebPreferences alloc] initWithIdentifier:SPTooltipPreferencesIdentifier];
+		[webPreferences setJavaScriptEnabled:YES];
+		NSString *fontName = @"Monaco";
+		int fontSize = 12;
+		NSFont* font = [NSFont fontWithName:fontName size:fontSize];
+		[webPreferences setStandardFontFamily:[font familyName]];
+		[webPreferences setDefaultFontSize:fontSize];
+		[webPreferences setDefaultFixedFontSize:fontSize];
+
+		webView = [[WebView alloc] initWithFrame:NSZeroRect];
+		[webView setPreferencesIdentifier:SPTooltipPreferencesIdentifier];
+		[webView setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
+		[webView setFrameLoadDelegate:self];
+		if ([webView respondsToSelector:@selector(setDrawsBackground:)])
+		    [webView setDrawsBackground:NO];
+
+		[self setContentView:webView];
+	}
+	return self;
+}
+
+- (void)dealloc
+{
+	[didOpenAtDate release];
+	[webView release];
+	[webPreferences release];
+	[super dealloc];
+}
+
+// ===========
+// = Webview =
+// ===========
+- (void)setContent:(NSString *)content transparent:(BOOL)transparent
+{
+	NSString *fullContent =	@"<html>"
+				@"<head>"
+				@"  <style type='text/css' media='screen'>"
+				@"      body {"
+				@"          background: %@;"
+				@"          margin: 0;"
+				@"          padding: 2px;"
+				@"          overflow: hidden;"
+				@"          display: table-cell;"
+				@"          max-width: 800px;"
+				@"      }"
+				@"      pre { white-space: pre-wrap; }"
+				@"  </style>"
+				@"</head>"
+				@"<body>%@</body>"
+				@"</html>";
+
+	fullContent = [NSString stringWithFormat:fullContent, transparent ? @"transparent" : @"#F6EDC3", content];
+	[[webView mainFrame] loadHTMLString:fullContent baseURL:nil];
+}
+
+- (void)sizeToContent
+{
+	// Current tooltip position
+	NSPoint pos = NSMakePoint([self frame].origin.x, [self frame].origin.y + [self frame].size.height);
+
+	// Find the screen which we are displaying on
+	NSRect screenFrame = [[NSScreen mainScreen] frame];
+	NSScreen* candidate;
+	for(candidate in [NSScreen screens])
+	{
+		if(NSMinX([candidate frame]) < pos.x && NSMinX([candidate frame]) > NSMinX(screenFrame))
+			screenFrame = [candidate frame];
+	}
+
+	// The webview is set to a large initial size and then sized down to fit the content
+	[self setContentSize:NSMakeSize(screenFrame.size.width - screenFrame.size.width / 3.0f , screenFrame.size.height)];
+
+	int height  = [[[webView windowScriptObject] evaluateWebScript:@"document.body.offsetHeight + document.body.offsetTop;"] intValue];
+	int width   = [[[webView windowScriptObject] evaluateWebScript:@"document.body.offsetWidth + document.body.offsetLeft;"] intValue];
+	
+	[webView setFrameSize:NSMakeSize(width, height)];
+
+	NSRect frame      = [self frameRectForContentRect:[webView frame]];
+	frame.size.width  = MIN(NSWidth(frame), NSWidth(screenFrame));
+	frame.size.height = MIN(NSHeight(frame), NSHeight(screenFrame));
+
+	
+	[self setFrame:frame display:NO];
+
+	pos.x = MAX(NSMinX(screenFrame), MIN(pos.x, NSMaxX(screenFrame)-NSWidth(frame)));
+	pos.y = MIN(MAX(NSMinY(screenFrame)+NSHeight(frame), pos.y), NSMaxY(screenFrame));
+
+	[self setFrameTopLeftPoint:pos];
+}
+
+- (void)webView:(WebView*)sender didFinishLoadForFrame:(WebFrame*)frame;
+{
+	[self sizeToContent];
+	[self orderFront:self];
+	[self performSelector:@selector(runUntilUserActivity) withObject:nil afterDelay:0];
+}
+
+// ==================
+// = Event handling =
+// ==================
+- (BOOL)shouldCloseForMousePosition:(NSPoint)aPoint
+{
+	float ignorePeriod = [[NSUserDefaults standardUserDefaults] floatForKey:@"OakToolTipMouseMoveIgnorePeriod"];
+	if(-[didOpenAtDate timeIntervalSinceNow] < ignorePeriod)
+		return NO;
+
+	if(NSEqualPoints(mousePositionWhenOpened, NSZeroPoint))
+	{
+		mousePositionWhenOpened = aPoint;
+		return NO;
+	}
+
+	NSPoint p = mousePositionWhenOpened;
+	float deltaX = p.x - aPoint.x;
+	float deltaY = p.y - aPoint.y;
+	float dist = sqrtf(deltaX * deltaX + deltaY * deltaY);
+
+	float moveThreshold = 2;
+	return dist > moveThreshold;
+}
+
+- (void)runUntilUserActivity
+{
+	[self setValue:[NSDate date] forKey:@"didOpenAtDate"];
+	mousePositionWhenOpened = NSZeroPoint;
+
+	NSWindow* keyWindow = [[NSApp keyWindow] retain];
+	BOOL didAcceptMouseMovedEvents = [keyWindow acceptsMouseMovedEvents];
+	[keyWindow setAcceptsMouseMovedEvents:YES];
+	NSEvent* event;
+	while(event = [NSApp nextEventMatchingMask:NSAnyEventMask untilDate:[NSDate distantFuture] inMode:NSDefaultRunLoopMode dequeue:YES])
+	{
+		[NSApp sendEvent:event];
+
+		if([event type] == NSLeftMouseDown || [event type] == NSRightMouseDown || [event type] == NSOtherMouseDown || [event type] == NSKeyDown || [event type] == NSScrollWheel)
+			break;
+
+		if([event type] == NSMouseMoved && [self shouldCloseForMousePosition:[NSEvent mouseLocation]])
+			break;
+
+		if(keyWindow != [NSApp keyWindow] || ![NSApp isActive])
+			break;
+	}
+
+	[keyWindow setAcceptsMouseMovedEvents:didAcceptMouseMovedEvents];
+	[keyWindow release];
+
+	[self orderOut:self];
+}
+
+// =============
+// = Animation =
+// =============
+- (void)orderOut:(id)sender
+{
+	if(![self isVisible] || animationTimer)
+		return;
+
+	[self stopAnimation:self];
+	[self setValue:[NSDate date] forKey:@"animationStart"];
+	[self setValue:[NSTimer scheduledTimerWithTimeInterval:0.02f target:self selector:@selector(animationTick:) userInfo:nil repeats:YES] forKey:@"animationTimer"];
+}
+
+- (void)animationTick:(id)sender
+{
+	float alpha = 0.97f * (1.0f - slow_in_out(-1.5 * [animationStart timeIntervalSinceNow]));
+	if(alpha > 0.0f)
+	{
+		[self setAlphaValue:alpha];
+	}
+	else
+	{
+		[super orderOut:self];
+		[self stopAnimation:self];
+		[self close];
+	}
+}
 
+- (void)stopAnimation:(id)sender;
+{
+	if(animationTimer)
+	{
+		[[self retain] autorelease];
+		[animationTimer invalidate];
+		[self setValue:nil forKey:@"animationTimer"];
+		[self setValue:nil forKey:@"animationStart"];
+		[self setAlphaValue:0.97f];
+	}
+}
 @end
-- 
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