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netsurf/cocoa/PSMTabBarControl/PSMTabBarCell.m
2011-01-26 10:52:13 +00:00

490 lines
13 KiB
Objective-C

//
// PSMTabBarCell.m
// PSMTabBarControl
//
// Created by John Pannell on 10/13/05.
// Copyright 2005 Positive Spin Media. All rights reserved.
//
#import "PSMTabBarCell.h"
#import "PSMTabBarControl.h"
#import "PSMTabStyle.h"
#import "PSMProgressIndicator.h"
#import "PSMTabDragAssistant.h"
@interface PSMTabBarControl (Private)
- (void)update;
@end
@implementation PSMTabBarCell
#pragma mark -
#pragma mark Creation/Destruction
- (id)initWithControlView:(PSMTabBarControl *)controlView {
if((self = [super init])) {
_controlView = controlView;
_closeButtonTrackingTag = 0;
_cellTrackingTag = 0;
_closeButtonOver = NO;
_closeButtonPressed = NO;
_indicator = [[PSMProgressIndicator alloc] initWithFrame:NSMakeRect(0.0, 0.0, kPSMTabBarIndicatorWidth, kPSMTabBarIndicatorWidth)];
[_indicator setStyle:NSProgressIndicatorSpinningStyle];
[_indicator setAutoresizingMask:NSViewMinYMargin];
_hasCloseButton = YES;
_isCloseButtonSuppressed = NO;
_count = 0;
_countColor = nil;
_isEdited = NO;
_isPlaceholder = NO;
}
return self;
}
- (id)initPlaceholderWithFrame:(NSRect)frame expanded:(BOOL)value inControlView:(PSMTabBarControl *)controlView {
if((self = [super init])) {
_controlView = controlView;
_isPlaceholder = YES;
if(!value) {
if([controlView orientation] == PSMTabBarHorizontalOrientation) {
frame.size.width = 0.0;
} else {
frame.size.height = 0.0;
}
}
[self setFrame:frame];
_closeButtonTrackingTag = 0;
_cellTrackingTag = 0;
_closeButtonOver = NO;
_closeButtonPressed = NO;
_indicator = nil;
_hasCloseButton = YES;
_isCloseButtonSuppressed = NO;
_count = 0;
_countColor = nil;
_isEdited = NO;
if(value) {
[self setCurrentStep:(kPSMTabDragAnimationSteps - 1)];
} else {
[self setCurrentStep:0];
}
}
return self;
}
- (void)dealloc {
[_countColor release];
[_indicator removeFromSuperviewWithoutNeedingDisplay];
[_indicator release];
[super dealloc];
}
#pragma mark -
#pragma mark Accessors
- (id)controlView {
return _controlView;
}
- (void)setControlView:(id)view {
// no retain release pattern, as this simply switches a tab to another view.
_controlView = view;
}
- (NSTrackingRectTag)closeButtonTrackingTag {
return _closeButtonTrackingTag;
}
- (void)setCloseButtonTrackingTag:(NSTrackingRectTag)tag {
_closeButtonTrackingTag = tag;
}
- (NSTrackingRectTag)cellTrackingTag {
return _cellTrackingTag;
}
- (void)setCellTrackingTag:(NSTrackingRectTag)tag {
_cellTrackingTag = tag;
}
- (CGFloat)width {
return _frame.size.width;
}
- (NSRect)frame {
return _frame;
}
- (void)setFrame:(NSRect)rect {
_frame = rect;
//move the status indicator along with the rest of the cell
if(![[self indicator] isHidden] && ![_controlView isTabBarHidden]) {
[[self indicator] setFrame:[self indicatorRectForFrame:rect]];
}
}
- (void)setStringValue:(NSString *)aString {
[super setStringValue:aString];
_stringSize = [[self attributedStringValue] size];
// need to redisplay now - binding observation was too quick.
[_controlView update];
}
- (NSSize)stringSize {
return _stringSize;
}
- (NSAttributedString *)attributedStringValue {
return [(id < PSMTabStyle >)[_controlView style] attributedStringValueForTabCell:self];
}
- (NSInteger)tabState {
return _tabState;
}
- (void)setTabState:(NSInteger)state {
_tabState = state;
}
- (NSProgressIndicator *)indicator {
return _indicator;
}
- (BOOL)isInOverflowMenu {
return _isInOverflowMenu;
}
- (void)setIsInOverflowMenu:(BOOL)value {
if(_isInOverflowMenu != value) {
_isInOverflowMenu = value;
if([[[self controlView] delegate] respondsToSelector:@selector(tabView:tabViewItem:isInOverflowMenu:)]) {
[[[self controlView] delegate] tabView:[self controlView] tabViewItem:[self representedObject] isInOverflowMenu:_isInOverflowMenu];
}
}
}
- (BOOL)closeButtonPressed {
return _closeButtonPressed;
}
- (void)setCloseButtonPressed:(BOOL)value {
_closeButtonPressed = value;
}
- (BOOL)closeButtonOver {
return(_closeButtonOver && ([_controlView allowsBackgroundTabClosing] || ([self tabState] & PSMTab_SelectedMask) || [[NSApp currentEvent] modifierFlags] & NSCommandKeyMask));
}
- (void)setCloseButtonOver:(BOOL)value {
_closeButtonOver = value;
}
- (BOOL)hasCloseButton {
return _hasCloseButton;
}
- (void)setHasCloseButton:(BOOL)set;
{
_hasCloseButton = set;
}
- (void)setCloseButtonSuppressed:(BOOL)suppress;
{
_isCloseButtonSuppressed = suppress;
}
- (BOOL)isCloseButtonSuppressed;
{
return _isCloseButtonSuppressed;
}
- (BOOL)hasIcon {
return _hasIcon;
}
- (void)setHasIcon:(BOOL)value {
_hasIcon = value;
//[_controlView update:[[self controlView] automaticallyAnimates]]; // binding notice is too fast
}
- (BOOL)hasLargeImage {
return _hasLargeImage;
}
- (void)setHasLargeImage:(BOOL)value {
_hasLargeImage = value;
}
- (NSInteger)count {
return _count;
}
- (void)setCount:(NSInteger)value {
_count = value;
//[_controlView update:[[self controlView] automaticallyAnimates]]; // binding notice is too fast
}
- (NSColor *)countColor {
return _countColor;
}
- (void)setCountColor:(NSColor *)color {
[_countColor release];
_countColor = [color retain];
}
- (BOOL)isPlaceholder {
return _isPlaceholder;
}
- (void)setIsPlaceholder:(BOOL)value;
{
_isPlaceholder = value;
}
- (NSInteger)currentStep {
return _currentStep;
}
- (void)setCurrentStep:(NSInteger)value {
if(value < 0) {
value = 0;
}
if(value > (kPSMTabDragAnimationSteps - 1)) {
value = (kPSMTabDragAnimationSteps - 1);
}
_currentStep = value;
}
- (BOOL)isEdited {
return _isEdited;
}
- (void)setIsEdited:(BOOL)value {
_isEdited = value;
//[_controlView update:[[self controlView] automaticallyAnimates]]; // binding notice is too fast
}
#pragma mark -
#pragma mark Bindings
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
// the progress indicator, label, icon, or count has changed - redraw the control view
//[_controlView update];
//I seem to have run into some odd issue with update not being called at the right time. This seems to avoid the problem.
[_controlView performSelector:@selector(update) withObject:nil afterDelay:0.0];
}
#pragma mark -
#pragma mark Component Attributes
- (NSRect)indicatorRectForFrame:(NSRect)cellFrame {
return [(id < PSMTabStyle >)[_controlView style] indicatorRectForTabCell:self];
}
- (NSRect)closeButtonRectForFrame:(NSRect)cellFrame {
return [(id < PSMTabStyle >)[_controlView style] closeButtonRectForTabCell:self withFrame:cellFrame];
}
- (CGFloat)minimumWidthOfCell {
return [(id < PSMTabStyle >)[_controlView style] minimumWidthOfTabCell:self];
}
- (CGFloat)desiredWidthOfCell {
return [(id < PSMTabStyle >)[_controlView style] desiredWidthOfTabCell:self];
}
#pragma mark -
#pragma mark Drawing
- (void)drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView {
if(_isPlaceholder) {
[[NSColor colorWithCalibratedWhite:0.0 alpha:0.2] set];
NSRectFillUsingOperation(cellFrame, NSCompositeSourceAtop);
return;
}
[(id < PSMTabStyle >)[_controlView style] drawTabCell:self];
}
#pragma mark -
#pragma mark Tracking
- (void)mouseEntered:(NSEvent *)theEvent {
// check for which tag
if([theEvent trackingNumber] == _closeButtonTrackingTag) {
_closeButtonOver = YES;
}
if([theEvent trackingNumber] == _cellTrackingTag) {
[self setHighlighted:YES];
[_controlView setNeedsDisplay:NO];
}
// scrubtastic
if([_controlView allowsScrubbing] && ([theEvent modifierFlags] & NSAlternateKeyMask)) {
[_controlView performSelector:@selector(tabClick:) withObject:self];
}
// tell the control we only need to redraw the affected tab
[_controlView setNeedsDisplayInRect:NSInsetRect([self frame], -2, -2)];
}
- (void)mouseExited:(NSEvent *)theEvent {
// check for which tag
if([theEvent trackingNumber] == _closeButtonTrackingTag) {
_closeButtonOver = NO;
}
if([theEvent trackingNumber] == _cellTrackingTag) {
[self setHighlighted:NO];
[_controlView setNeedsDisplay:NO];
}
//tell the control we only need to redraw the affected tab
[_controlView setNeedsDisplayInRect:NSInsetRect([self frame], -2, -2)];
}
#pragma mark -
#pragma mark Drag Support
- (NSImage *)dragImage {
NSRect cellFrame = [(id < PSMTabStyle >)[(PSMTabBarControl *)_controlView style] dragRectForTabCell:self orientation:(PSMTabBarOrientation)[(PSMTabBarControl *)_controlView orientation]];
//NSRect cellFrame = [self frame];
[_controlView lockFocus];
NSBitmapImageRep *rep = [[[NSBitmapImageRep alloc] initWithFocusedViewRect:cellFrame] autorelease];
[_controlView unlockFocus];
NSImage *image = [[[NSImage alloc] initWithSize:[rep size]] autorelease];
[image addRepresentation:rep];
NSImage *returnImage = [[[NSImage alloc] initWithSize:[rep size]] autorelease];
[returnImage lockFocus];
[image compositeToPoint:NSMakePoint(0.0, 0.0) operation:NSCompositeSourceOver fraction:1.0];
[returnImage unlockFocus];
if(![[self indicator] isHidden]) {
NSImage *pi = [[NSImage alloc] initByReferencingFile:[[PSMTabBarControl bundle] pathForImageResource:@"pi"]];
[returnImage lockFocus];
NSPoint indicatorPoint = NSMakePoint([self frame].size.width - MARGIN_X - kPSMTabBarIndicatorWidth, MARGIN_Y);
[pi compositeToPoint:indicatorPoint operation:NSCompositeSourceOver fraction:1.0];
[returnImage unlockFocus];
[pi release];
}
return returnImage;
}
#pragma mark -
#pragma mark Archiving
- (void)encodeWithCoder:(NSCoder *)aCoder {
[super encodeWithCoder:aCoder];
if([aCoder allowsKeyedCoding]) {
[aCoder encodeRect:_frame forKey:@"frame"];
[aCoder encodeSize:_stringSize forKey:@"stringSize"];
[aCoder encodeInteger:_currentStep forKey:@"currentStep"];
[aCoder encodeBool:_isPlaceholder forKey:@"isPlaceholder"];
[aCoder encodeInteger:_tabState forKey:@"tabState"];
[aCoder encodeInteger:_closeButtonTrackingTag forKey:@"closeButtonTrackingTag"];
[aCoder encodeInteger:_cellTrackingTag forKey:@"cellTrackingTag"];
[aCoder encodeBool:_closeButtonOver forKey:@"closeButtonOver"];
[aCoder encodeBool:_closeButtonPressed forKey:@"closeButtonPressed"];
[aCoder encodeObject:_indicator forKey:@"indicator"];
[aCoder encodeBool:_isInOverflowMenu forKey:@"isInOverflowMenu"];
[aCoder encodeBool:_hasCloseButton forKey:@"hasCloseButton"];
[aCoder encodeBool:_isCloseButtonSuppressed forKey:@"isCloseButtonSuppressed"];
[aCoder encodeBool:_hasIcon forKey:@"hasIcon"];
[aCoder encodeBool:_hasLargeImage forKey:@"hasLargeImage"];
[aCoder encodeInteger:_count forKey:@"count"];
[aCoder encodeBool:_isEdited forKey:@"isEdited"];
}
}
- (id)initWithCoder:(NSCoder *)aDecoder {
self = [super initWithCoder:aDecoder];
if(self) {
if([aDecoder allowsKeyedCoding]) {
_frame = [aDecoder decodeRectForKey:@"frame"];
_stringSize = [aDecoder decodeSizeForKey:@"stringSize"];
_currentStep = [aDecoder decodeIntegerForKey:@"currentStep"];
_isPlaceholder = [aDecoder decodeBoolForKey:@"isPlaceholder"];
_tabState = [aDecoder decodeIntegerForKey:@"tabState"];
_closeButtonTrackingTag = [aDecoder decodeIntegerForKey:@"closeButtonTrackingTag"];
_cellTrackingTag = [aDecoder decodeIntegerForKey:@"cellTrackingTag"];
_closeButtonOver = [aDecoder decodeBoolForKey:@"closeButtonOver"];
_closeButtonPressed = [aDecoder decodeBoolForKey:@"closeButtonPressed"];
_indicator = [[aDecoder decodeObjectForKey:@"indicator"] retain];
_isInOverflowMenu = [aDecoder decodeBoolForKey:@"isInOverflowMenu"];
_hasCloseButton = [aDecoder decodeBoolForKey:@"hasCloseButton"];
_isCloseButtonSuppressed = [aDecoder decodeBoolForKey:@"isCloseButtonSuppressed"];
_hasIcon = [aDecoder decodeBoolForKey:@"hasIcon"];
_hasLargeImage = [aDecoder decodeBoolForKey:@"hasLargeImage"];
_count = [aDecoder decodeIntegerForKey:@"count"];
_isEdited = [aDecoder decodeBoolForKey:@"isEdited"];
}
}
return self;
}
#pragma mark -
#pragma mark Accessibility
-(BOOL)accessibilityIsIgnored {
return NO;
}
- (id)accessibilityAttributeValue:(NSString *)attribute {
id attributeValue = nil;
if([attribute isEqualToString: NSAccessibilityRoleAttribute]) {
attributeValue = NSAccessibilityButtonRole;
} else if([attribute isEqualToString: NSAccessibilityHelpAttribute]) {
if([[[self controlView] delegate] respondsToSelector:@selector(accessibilityStringForTabView:objectCount:)]) {
attributeValue = [NSString stringWithFormat:@"%@, %lu %@", [self stringValue],
(unsigned long)[self count],
[[[self controlView] delegate] accessibilityStringForTabView:[[self controlView] tabView] objectCount:[self count]]];
} else {
attributeValue = [self stringValue];
}
} else if([attribute isEqualToString: NSAccessibilityFocusedAttribute]) {
attributeValue = [NSNumber numberWithBool:([self tabState] == 2)];
} else {
attributeValue = [super accessibilityAttributeValue:attribute];
}
return attributeValue;
}
- (NSArray *)accessibilityActionNames {
static NSArray *actions;
if(!actions) {
actions = [[NSArray alloc] initWithObjects:NSAccessibilityPressAction, nil];
}
return actions;
}
- (NSString *)accessibilityActionDescription:(NSString *)action {
return NSAccessibilityActionDescription(action);
}
- (void)accessibilityPerformAction:(NSString *)action {
if([action isEqualToString:NSAccessibilityPressAction]) {
// this tab was selected
[_controlView performSelector:@selector(tabClick:) withObject:self];
}
}
- (id)accessibilityHitTest:(NSPoint)point {
return NSAccessibilityUnignoredAncestor(self);
}
- (id)accessibilityFocusedUIElement:(NSPoint)point {
return NSAccessibilityUnignoredAncestor(self);
}
@end