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MVDiscussionView.m
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MVDiscussionView.m
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#import "MVDiscussionView.h"
#import "MVDiscussionMessageItem.h"
#import "MVDiscussionMessageView.h"
#import "MVRoundedTextView.h"
#import "MVActivityIndicatorView.h"
#import "NSObject+PerformBlockAfterDelay.h"
#import "NSEvent+CharacterDetection.h"
#import "MVURLKit.h"
#define kMVDiscussionViewAnimationDuration 0.25
#define kMVDiscussionViewLoadingMessagesHeight 40
@interface TUIScrollKnob : TUIView
@end
@interface TUIScrollView ()
- (TUIScrollKnob*)verticalScrollKnob;
- (TUIScrollKnob*)horizontalScrollKnob;
@end
@interface _MVDiscussionContentView : TUIView
@end
@interface MVDiscussionView () <QLPreviewPanelDataSource,
QLPreviewPanelDelegate,
MVDiscussionMessageItemDelegate>
@property (strong, readwrite) _MVDiscussionContentView *contentView;
@property (strong, readwrite) TUIView *animatedView;
@property (strong, readwrite) NSMutableArray *items;
@property (strong, readwrite) NSMutableDictionary *visibleViews;
@property (strong, readwrite) NSMutableArray *reusableViews;
@property (strong, readwrite) TUITextRenderer *textRenderer;
@property (readwrite) CGSize lastSize;
@property (readwrite) int ownMessagesAnimating;
@property (readwrite) float cachedExpectedHeight;
@property (readwrite) BOOL shouldProcessOffsets;
@property (strong, readwrite) MVDiscussionMessageItem *selectionStartItem;
@property (readwrite) int selectionStartIndex;
@property (strong, readwrite) MVDiscussionMessageItem *selectionEndItem;
@property (readwrite) int selectionEndIndex;
@property (strong, readwrite) MVDiscussionMessageItem *selectedItem;
@property (strong, readwrite) MVActivityIndicatorView *topActivityIndicatorView;
@property (strong, readwrite) MVActivityIndicatorView *bottomActivityIndicatorView;
@property (strong, readwrite) NSMutableArray *pendingDiscussionItems;
@property (strong, readwrite) NSMutableArray *tmpItems;
- (void)addDiscussionItem:(MVDiscussionMessageItem*)discussionItem
animated:(BOOL)animated
top:(BOOL)top;
- (MVDiscussionMessageView*)lastVisibleView;
- (void)setViewsDisplayAsFirstResponder:(BOOL)firstResponder;
- (void)toggleQuicklook;
- (void)scrollToItem:(MVDiscussionMessageItem*)item animated:(BOOL)animated;
- (BOOL)hasSelection;
- (void)updateSelectedRangeForView:(MVDiscussionMessageView*)view;
- (void)layoutViewsWithAdditionnalHeight:(int)additionnalHeight;
- (NSArray *)indexPathsForRowsInRect:(CGRect)rect;
- (CGSize)sizeForIndexPath:(int)indexPath;
- (CGRect)rectForIndexPath:(int)indexPath;
- (void)enqueueReusableView:(MVDiscussionMessageView*)view;
- (MVDiscussionMessageView*)dequeueReusableView;
- (MVDiscussionMessageView*)createViewForIndexPath:(int)indexPath;
- (int)zPositionForIndexPath:(int)indexPath
andView:(MVDiscussionMessageView*)view;
- (int)expectedHeight;
@end
@implementation MVDiscussionView
@synthesize contentView = contentView_,
animatedView = animatedView_,
items = items_,
visibleViews = visibleViews_,
reusableViews = reusableViews_,
textRenderer = textRenderer_,
lastSize = lastSize_,
ownMessagesAnimating = ownMessagesAnimating_,
cachedExpectedHeight = cachedExpectedHeight_,
shouldProcessOffsets = shouldProcessOffsets_,
selectionStartItem = selectionStartItem_,
selectionStartIndex = selectionStartIndex_,
selectionEndItem = selectionEndItem_,
selectionEndIndex = selectionEndIndex_,
selectedItem = selectedItem_,
topActivityIndicatorView = topActivityIndicatorView_,
bottomActivityIndicatorView = bottomActivityIndicatorView_,
pendingDiscussionItems = pendingDiscussionItems_,
tmpItems = tmpItems_,
delegate = delegate_,
style = style_,
hasNotLoadedPreviousItems = hasNotLoadedPreviousItems_,
hasNotLoadedNextItems = hasNotLoadedNextItems_,
allowsBlankslate = allowsBlankslate_;
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if(self)
{
self.clipsToBounds = NO;
self.opaque = NO;
self.backgroundColor = [TUIColor clearColor];
self.horizontalScrollIndicatorVisibility = TUIScrollViewIndicatorVisibleNever;
self.scrollEnabled = YES;
self.alwaysBounceVertical = YES;
contentView_ = [[_MVDiscussionContentView alloc] initWithFrame:self.bounds];
contentView_.autoresizingMask = TUIViewAutoresizingFlexibleWidth;
[self addSubview:contentView_];
animatedView_ = [[TUIView alloc] initWithFrame:self.bounds];
animatedView_.autoresizingMask = TUIViewAutoresizingNone;
[contentView_ addSubview:animatedView_];
items_ = [[NSMutableArray alloc] init];
visibleViews_ = [[NSMutableDictionary alloc] init];
reusableViews_ = [[NSMutableArray alloc] init];
textRenderer_ = [[TUITextRenderer alloc] init];
lastSize_ = CGSizeZero;
ownMessagesAnimating_ = 0;
cachedExpectedHeight_ = -1;
shouldProcessOffsets_ = NO;
selectionStartItem_ = nil;
selectionStartIndex_ = -1;
selectionEndItem_ = nil;
selectionEndIndex_ = -1;
selectedItem_ = nil;
topActivityIndicatorView_ = nil;
bottomActivityIndicatorView_ = nil;
delegate_ = nil;
style_ = kMVDiscussionViewStyleBlueGradient;
hasNotLoadedPreviousItems_ = NO;
hasNotLoadedNextItems_ = NO;
allowsBlankslate_ = YES;
pendingDiscussionItems_ = [NSMutableArray array];
tmpItems_ = [NSMutableArray array];
[self registerForDraggedTypes:[NSArray arrayWithObjects:
NSPasteboardTypeTIFF,
NSPasteboardTypePNG,
NSFilenamesPboardType,
nil]];
[self addObserver:self forKeyPath:@"selectedItem" options:0 context:NULL];
[self addObserver:self forKeyPath:@"hasNotLoadedPreviousItems" options:0 context:NULL];
[self addObserver:self forKeyPath:@"hasNotLoadedNextItems" options:0 context:NULL];
[self addObserver:self forKeyPath:@"ownMessagesAnimating" options:0 context:NULL];
}
return self;
}
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
[self removeObserver:self forKeyPath:@"selectedItem"];
[self removeObserver:self forKeyPath:@"hasNotLoadedPreviousItems"];
[self removeObserver:self forKeyPath:@"hasNotLoadedNextItems"];
[self removeObserver:self forKeyPath:@"ownMessagesAnimating"];
}
- (void)observeValueForKeyPath:(NSString *)keyPath
ofObject:(id)object
change:(NSDictionary *)change
context:(void *)context
{
if([keyPath isEqualToString:@"selectedItem"])
{
if ([QLPreviewPanel sharedPreviewPanelExists] &&
[[QLPreviewPanel sharedPreviewPanel] isVisible])
{
[[QLPreviewPanel sharedPreviewPanel] reloadData];
}
}
else if([keyPath isEqualToString:@"hasNotLoadedPreviousItems"] ||
[keyPath isEqualToString:@"hasNotLoadedNextItems"])
{
self.cachedExpectedHeight = -1;
self.shouldProcessOffsets = YES;
[self layoutSubviews];
}
else if([keyPath isEqualToString:@"ownMessagesAnimating"])
{
if(self.ownMessagesAnimating <= 0 &&
self.pendingDiscussionItems.count > 0)
{
[self willChangeValueForKey:@"countItems"];
MVDiscussionMessageItem *item;
for(item in self.pendingDiscussionItems)
{
[self.items addObject:item];
}
[self.pendingDiscussionItems removeAllObjects];
[self didChangeValueForKey:@"countItems"];
self.cachedExpectedHeight = -1;
self.shouldProcessOffsets = YES;
[self layoutSubviews:YES];
}
}
else
[super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
}
- (void)willMoveToWindow:(TUINSWindow *)newWindow
{
[super willMoveToWindow:newWindow];
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
[nc removeObserver:self name:NSWindowDidEndLiveResizeNotification object:self.nsWindow];
[nc addObserver:self
selector:@selector(endLiveResize)
name:NSWindowDidEndLiveResizeNotification
object:newWindow];
}
- (int)countItems
{
return self.items.count;
}
- (void)removeAllDiscussionItems
{
[self resetSelection];
[self resetSelectedItem];
[self willChangeValueForKey:@"countItems"];
[self.items removeAllObjects];
[self didChangeValueForKey:@"countItems"];
}
- (void)insertDiscussionItemAtTop:(MVDiscussionMessageItem*)discussionItem
{
[self addDiscussionItem:discussionItem animated:NO top:YES];
}
- (void)addDiscussionItem:(MVDiscussionMessageItem*)discussionItem
{
[self addDiscussionItem:discussionItem animated:YES top:NO];
}
- (void)addDiscussionItem:(MVDiscussionMessageItem*)discussionItem
animated:(BOOL)animated
{
[self addDiscussionItem:discussionItem animated:animated top:NO];
}
- (void)addDiscussionItem:(MVDiscussionMessageItem*)discussionItem
animated:(BOOL)animated
top:(BOOL)top
{
animated &= (self.contentOffset.y > -10);
if(!top)
discussionItem.previousItem = [self.items lastObject];
else if(self.items.count > 0)
{
MVDiscussionMessageItem *firstItem = [self.items objectAtIndex:0];
firstItem.previousItem = discussionItem;
}
if(animated)
{
discussionItem.animated = animated;
CGSize size = [MVDiscussionMessageView sizeForItem:discussionItem
constrainedToWidth:self.bounds.size.width
textRenderer:self.textRenderer
inWindow:self.nsWindow];
discussionItem.animatingFromPoint = CGPointMake(0, -size.height);
}
discussionItem.delegate = self;
[self willChangeValueForKey:@"countItems"];
if(!top)
{
if(discussionItem.animationStyle != kMVDiscussionMessageAnimationStyleSentMessage &&
self.ownMessagesAnimating > 0)
{
[self.pendingDiscussionItems addObject:discussionItem];
}
else
{
[self.items addObject:discussionItem];
}
}
else
{
[self.items insertObject:discussionItem atIndex:0];
}
// update visibleViews indexPaths
NSMutableDictionary *newVisibleViews = [NSMutableDictionary dictionary];
NSNumber *indexPath;
MVDiscussionMessageView *view;
for(indexPath in self.visibleViews)
{
view = [self.visibleViews objectForKey:indexPath];
if([self.items containsObject:view.item])
{
[newVisibleViews setObject:view
forKey:[NSNumber numberWithInt:[self.items indexOfObject:view.item]]];
}
else
{
[self enqueueReusableView:view];
[view removeFromSuperview];
}
}
self.visibleViews = newVisibleViews;
[self didChangeValueForKey:@"countItems"];
self.cachedExpectedHeight = -1;
self.shouldProcessOffsets = YES;
}
- (void)addDiscussionItem:(MVDiscussionMessageItem*)discussionItem
animateFromTextView:(MVRoundedTextView*)textView
{
discussionItem.animated = YES;
CGSize size = [MVDiscussionMessageView sizeForItem:discussionItem
constrainedToWidth:self.bounds.size.width
textRenderer:self.textRenderer
inWindow:self.nsWindow];
CGPoint point = [self convertPoint:textView.frame.origin fromView:textView.superview];
discussionItem.animationStyle = kMVDiscussionMessageAnimationStyleSentMessage;
discussionItem.animatingFromPoint = CGPointMake(- (self.bounds.size.width - size.width) +
+ (point.x - 41),
point.y - 1);
[self addDiscussionItem:discussionItem animated:NO top:NO];
}
- (void)removeDiscussionItem:(MVDiscussionMessageItem*)discussionItem
{
if([self.items containsObject:discussionItem])
{
[self willChangeValueForKey:@"countItems"];
// find next item
int index = [self.items indexOfObject:discussionItem];
MVDiscussionMessageItem *nextItem = nil;
if(index < self.items.count - 1)
{
nextItem = [self.items objectAtIndex:index + 1];
}
[self.items removeObject:discussionItem];
if(nextItem)
{
if(index > 0)
nextItem.previousItem = [self.items objectAtIndex:index - 1];
else
nextItem.previousItem = nil;
}
[self didChangeValueForKey:@"countItems"];
// update visibleViews indexPaths
NSMutableDictionary *newVisibleViews = [NSMutableDictionary dictionary];
NSNumber *indexPath;
MVDiscussionMessageView *view;
for(indexPath in self.visibleViews)
{
view = [self.visibleViews objectForKey:indexPath];
if([self.items containsObject:view.item])
{
[newVisibleViews setObject:view
forKey:[NSNumber numberWithInt:[self.items indexOfObject:view.item]]];
}
else if(view.item == discussionItem)
{
TUIView *maskView = [[TUIView alloc] initWithFrame:view.bounds];
maskView.drawRect = ^(TUIView *view, CGRect rect)
{
[[NSColor blackColor] set];
[NSBezierPath fillRect:view.bounds];
};
view.layer.mask = maskView.layer;
[self.tmpItems addObject:view];
[self.tmpItems addObject:maskView];
[self mv_performBlock:^{
[TUIView animateWithDuration:kMVDiscussionViewAnimationDuration animations:^{
CGRect frame = maskView.frame;
frame.origin.y = -frame.size.height;
maskView.frame = frame;
view.layer.opacity = 0.0;
}];
[self mv_performBlock:^{
view.layer.mask = nil;
[self enqueueReusableView:view];
[view removeFromSuperview];
view.layer.opacity = 1.0;
[self.tmpItems removeObject:view];
[self.tmpItems removeObject:maskView];
} afterDelay:kMVDiscussionViewAnimationDuration];
} afterDelay:0.01];
}
}
self.visibleViews = newVisibleViews;
self.cachedExpectedHeight = -1;
self.shouldProcessOffsets = YES;
}
}
- (MVDiscussionMessageItem*)discussionItemAtIndex:(int)index
{
return [self.items objectAtIndex:index];
}
- (MVDiscussionMessageItem*)discussionItemForRepresentedObject:(NSObject*)representedObject
{
MVDiscussionMessageItem *item;
for(item in self.items)
{
if(item.representedObject == representedObject)
return item;
}
return nil;
}
- (NSOrderedSet*)discussionItemsForRepresentedObject:(NSObject*)representedObject
{
NSMutableOrderedSet *mutableSet = [NSMutableOrderedSet orderedSet];
MVDiscussionMessageItem *item;
for(item in self.items)
{
if([item.representedObject isEqual:representedObject] ||
([item.representedObject isKindOfClass:[NSManagedObject class]] &&
[representedObject isKindOfClass:[NSManagedObject class]] &&
[((NSManagedObject*)(item.representedObject)).objectID isEqualTo:
((NSManagedObject*)(representedObject)).objectID]))
{
[mutableSet addObject:item];
}
}
return mutableSet;
}
- (void)layoutSubviews
{
[super layoutSubviews];
[self layoutSubviews:NO];
}
- (void)layoutSubviews:(BOOL)animated
{
BOOL keepScrollAtBottom = (self.contentOffset.y > -10);
if(!keepScrollAtBottom)
animated = NO;
if(animated && !self.isVisibleInWindow)
animated = NO;
MVDiscussionMessageView *lastVisibleView = self.lastVisibleView;
int lastVisibleOffset = 0;
if(lastVisibleView)
lastVisibleOffset = lastVisibleView.item.offset;
CGRect bounds = self.bounds;
if(!CGSizeEqualToSize(bounds.size, self.lastSize))
self.cachedExpectedHeight = -1;
if(self.ownMessagesAnimating == 0)
{
if([self.delegate respondsToSelector:@selector(discussionViewShouldNotBeFront:)])
[self.delegate discussionViewShouldNotBeFront:self];
}
CGRect frame = self.contentView.frame;
CGSize size;
MVDiscussionMessageItem *item;
int i;
BOOL offsetChanged = NO;
NSNumber *indexPath;
if(!CGSizeEqualToSize(self.contentSize, frame.size) || self.shouldProcessOffsets)
{
// process offsets
int count = (int)self.items.count;
int y = [self expectedHeight];
if(self.hasNotLoadedPreviousItems)
y -= kMVDiscussionViewLoadingMessagesHeight;
for(i=0;i<count;i++)
{
size = [self sizeForIndexPath:i];
y -= size.height;
item = [self.items objectAtIndex:i];
y -= [MVDiscussionMessageView marginTopForItem:item];
if(item.offset != y)
{
item.offset = y;
offsetChanged = YES;
}
}
self.shouldProcessOffsets = NO;
}
CGPoint contentOffset = self.contentOffset;
float contentHeight = frame.size.height = [self expectedHeight];
if(frame.size.height < self.bounds.size.height)
frame.size.height = self.bounds.size.height;
self.contentView.frame = frame;
CGRect animatedFrame = self.animatedView.frame;
if(animatedFrame.size.height != contentHeight)
{
animatedFrame.size.height = contentHeight;
animatedFrame.size.width = frame.size.width;
// [self.animatedView removeAllAnimations];
self.animatedView.frame = animatedFrame;
}
if(!CGSizeEqualToSize(self.contentSize, frame.size))
{
self.contentSize = frame.size;
if(!keepScrollAtBottom)
{
// find additionnal height added below our last view
int newLastVisibleOffset = 0;
if(lastVisibleView)
newLastVisibleOffset = lastVisibleView.item.offset;
float additionnalHeight = newLastVisibleOffset - lastVisibleOffset;
contentOffset.y -= additionnalHeight;
}
self.contentOffset = contentOffset;
if(keepScrollAtBottom)
self.scrollIndicatorStyle = TUIScrollViewIndicatorVisibleNever;
}
// check if we need to redisplay current visible views (if width has changed)
if(!CGSizeEqualToSize(bounds.size, self.lastSize) || offsetChanged)
{
MVDiscussionMessageView *view;
for(indexPath in self.visibleViews)
{
i = [indexPath intValue];
view = [self.visibleViews objectForKey:indexPath];
CGRect rrect = [self rectForIndexPath:i];
[TUIView setAnimationsEnabled:(animated || view.item.animating) block:^{
[TUIView animateWithDuration:kMVDiscussionViewAnimationDuration animations:^{
view.frame = rrect;
}];
}];
view.layer.zPosition = [self zPositionForIndexPath:i andView:view];
}
self.lastSize = bounds.size;
}
// add/remove visible views + layout
[self layoutViewsWithAdditionnalHeight:0];
// display activity indicator views if needed
if(self.hasNotLoadedPreviousItems &&
CGRectIntersectsRect(self.visibleRect, CGRectMake(0,
self.contentSize.height -
kMVDiscussionViewLoadingMessagesHeight,
self.contentSize.width,
kMVDiscussionViewLoadingMessagesHeight)))
{
if(!self.topActivityIndicatorView)
{
self.topActivityIndicatorView = [[MVActivityIndicatorView alloc] initWithFrame:CGRectZero];
self.topActivityIndicatorView.style = kMVActivityIndicatorStyleBlue;
}
CGRect frame = self.topActivityIndicatorView.frame;
frame.origin.x = round((self.contentSize.width - frame.size.width) / 2);
if(self.items.count > 0)
frame.origin.y = round((kMVDiscussionViewLoadingMessagesHeight - frame.size.height) / 2 +
self.contentSize.height - kMVDiscussionViewLoadingMessagesHeight);
else
frame.origin.y = round((self.contentSize.height - frame.size.height) / 2);
self.topActivityIndicatorView.frame = frame;
[self addSubview:self.topActivityIndicatorView];
[self.topActivityIndicatorView startAnimating];
// if(self.isBouncing)
// {
if([self.delegate respondsToSelector:@selector(discussionViewShouldLoadPreviousItems:)])
[self.delegate discussionViewShouldLoadPreviousItems:self];
// }
}
else if(self.topActivityIndicatorView)
{
[self.topActivityIndicatorView stopAnimating];
[self.topActivityIndicatorView removeFromSuperview];
}
if(self.hasNotLoadedNextItems &&
CGRectIntersectsRect(self.visibleRect, CGRectMake(0, 0,
self.contentSize.width,
kMVDiscussionViewLoadingMessagesHeight)) &&
self.items.count > 0)
{
if(!self.bottomActivityIndicatorView)
{
self.bottomActivityIndicatorView = [[MVActivityIndicatorView alloc] initWithFrame:CGRectZero];
self.bottomActivityIndicatorView.style = kMVActivityIndicatorStyleBlue;
}
CGRect frame = self.bottomActivityIndicatorView.frame;
frame.origin.x = round((self.contentSize.width - frame.size.width) / 2);
frame.origin.y = round((kMVDiscussionViewLoadingMessagesHeight - frame.size.height) / 2);
self.bottomActivityIndicatorView.frame = frame;
[self addSubview:self.bottomActivityIndicatorView];
[self.bottomActivityIndicatorView startAnimating];
// if(self.isBouncing)
// {
if([self.delegate respondsToSelector:@selector(discussionViewShouldLoadNextItems:)])
[self.delegate discussionViewShouldLoadNextItems:self];
// }
}
else if(self.bottomActivityIndicatorView)
{
[self.bottomActivityIndicatorView stopAnimating];
[self.bottomActivityIndicatorView removeFromSuperview];
}
// update start/end percents
if(self.style == kMVDiscussionViewStyleBlueGradient)
{
MVDiscussionMessageView *view;
CGRect rect;
float p1;
float p2;
for(indexPath in self.visibleViews)
{
view = [self.visibleViews objectForKey:indexPath];
rect = [self convertRect:view.frame fromView:self.contentView];
rect.origin.y += self.contentOffset.y;
p1 = rect.origin.y / self.bounds.size.height;
p2 = (rect.origin.y + rect.size.height) / self.bounds.size.height;
[view setBackgroundStartPercent:p1 endPercent:p2];
}
}
[self.verticalScrollKnob layoutSubviews];
self.scrollIndicatorStyle = TUIScrollViewIndicatorVisibleDefault;
}
- (void)resetSelection
{
self.selectionStartItem = nil;
self.selectionStartIndex = -1;
self.selectionEndItem = nil;
self.selectionEndIndex = -1;
NSNumber *indexPath;
MVDiscussionMessageView *view;
for(indexPath in self.visibleViews)
{
view = [self.visibleViews objectForKey:indexPath];
[view.textRenderer resetSelection];
}
}
- (void)selectUp
{
int i = (int)[self.items count] - 1;
MVDiscussionMessageView *view;
MVDiscussionMessageItem *oldSelectedItem = self.selectedItem;
if(self.selectedItem)
{
i = (int)[self.items indexOfObject:self.selectedItem] - 1;
}
BOOL found = NO;
MVDiscussionMessageItem *item;
while(i >= 0 && !found)
{
item = [self.items objectAtIndex:i];
if(((item.type == kMVDiscussionMessageTypeImage ||
item.type == kMVDiscussionMessageTypeRemoteImage)
&& item.image) ||
((item.type == kMVDiscussionMessageTypeFile ||
item.type == kMVDiscussionMessageTypeRemoteFile) && item.asset.isExisting))
{
self.selectedItem = item;
self.selectedItem.selected = YES;
view = [self.visibleViews objectForKey:[NSNumber numberWithInt:i]];
if(view)
[view setNeedsDisplay];
[self scrollToItem:self.selectedItem animated:YES];
found = YES;
}
i--;
}
if(oldSelectedItem && found)
{
oldSelectedItem.selected = NO;
i = (int)[self.items indexOfObject:oldSelectedItem];
view = [self.visibleViews objectForKey:[NSNumber numberWithInt:i]];
if(view)
[view setNeedsDisplay];
}
}
- (void)selectDown
{
int i = 0;
MVDiscussionMessageView *view;
MVDiscussionMessageItem *oldSelectedItem = self.selectedItem;
if(self.selectedItem)
{
i = (int)[self.items indexOfObject:self.selectedItem] + 1;
}
BOOL found = NO;
MVDiscussionMessageItem *item;
while(i < [self.items count] && !found)
{
item = [self.items objectAtIndex:i];
if(((item.type == kMVDiscussionMessageTypeImage ||
item.type == kMVDiscussionMessageTypeRemoteImage)
&& item.image) ||
((item.type == kMVDiscussionMessageTypeFile ||
item.type == kMVDiscussionMessageTypeRemoteFile) && item.asset.isExisting))
{
self.selectedItem = item;
self.selectedItem.selected = YES;
view = [self.visibleViews objectForKey:[NSNumber numberWithInt:i]];
if(view)
[view setNeedsDisplay];
[self scrollToItem:self.selectedItem animated:YES];
found = YES;
}
i++;
}
if(oldSelectedItem &&
(found ||
[self.delegate respondsToSelector:@selector(discussionViewShouldGiveFocusToTextField:)]))
{
oldSelectedItem.selected = NO;
i = (int)[self.items indexOfObject:oldSelectedItem];
view = [self.visibleViews objectForKey:[NSNumber numberWithInt:i]];
if(view)
[view setNeedsDisplay];
}
if(!found &&
[self.delegate respondsToSelector:@selector(discussionViewShouldGiveFocusToTextField:)])
{
[self scrollToBottomAnimated:YES];
[self.delegate discussionViewShouldGiveFocusToTextField:self];
}
}
- (void)resetSelectedItem
{
if(self.selectedItem)
{
self.selectedItem.selected = NO;
int i = (int)[self.items indexOfObject:self.selectedItem];
MVDiscussionMessageView *view = [self.visibleViews objectForKey:[NSNumber numberWithInt:i]];
if(view)
[view setNeedsDisplay];
self.selectedItem = nil;
}
}
- (void)scrollToCenterItem:(MVDiscussionMessageItem*)discussionItem
animated:(BOOL)animated
{
int indexPath = [self.items indexOfObject:discussionItem];
CGRect rect = [self rectForIndexPath:indexPath];
rect = CGRectInset(rect, 0, -(self.frame.size.height - rect.size.height) / 2);
[self scrollRectToVisible:rect animated:NO];
}
- (void)setDelegate:(NSObject<MVDiscussionViewDelegate> *)delegate
{
if(delegate == delegate_)
return;
delegate_ = delegate;
[super setDelegate:delegate];
}
- (MVDiscussionMessageItem*)lastVisibleItemHavingMessage
{
CGRect visibleRect = self.visibleRect;
NSNumber *indexPath;
float minY = INTMAX_MAX;
MVDiscussionMessageItem *minItem = nil;
MVDiscussionMessageItem *item;
CGRect rect;
for(indexPath in self.visibleViews)
{
if(indexPath.intValue < 0 || indexPath.intValue >= self.items.count)
continue;
item = [self.items objectAtIndex:indexPath.intValue];
if(!item.representedObject)
continue;
rect = [self rectForIndexPath:indexPath.intValue];
if(CGRectIntersection(visibleRect, rect).size.height >=
MIN(visibleRect.size.height - 20, rect.size.height - 6))
{
if(rect.origin.y < minY)
{
minY = rect.origin.y;
minItem = item;
}
}
}
return minItem;
}
- (NSString*)selectedString
{
if(![self hasSelection])
return @"";
MVDiscussionMessageItem *startItem = self.selectionStartItem;
int startIndex = self.selectionStartIndex;
MVDiscussionMessageItem *endItem = self.selectionEndItem;
int endIndex = self.selectionEndIndex;
int fromIndexPath = (int)[self.items indexOfObject:self.selectionStartItem];
int toIndexPath = (int)[self.items indexOfObject:self.selectionEndItem];
if(fromIndexPath > toIndexPath ||
(fromIndexPath == toIndexPath &&
startIndex > endIndex))
{
int tmp = fromIndexPath;
fromIndexPath = toIndexPath;
toIndexPath = tmp;
startItem = self.selectionEndItem;
startIndex = self.selectionEndIndex;
endItem = self.selectionStartItem;
endIndex = self.selectionStartIndex;
}
NSMutableString *string = [[NSMutableString alloc] init];
MVDiscussionMessageItem *item;
for(int i = fromIndexPath; i <= toIndexPath; i++)
{
item = [self.items objectAtIndex:i];
if(item.type == kMVDiscussionMessageTypeText ||
item.type == kMVDiscussionMessageTypeTweet)
{
if(string.length != 0)
[string appendString:@"\n"];
NSRange range;
if(item == startItem && item == endItem)
{
range = NSMakeRange(startIndex, endIndex - startIndex);
}
else if(item == startItem)
{
range = NSMakeRange(startIndex, item.message.length - startIndex);
}
else if(item == endItem)
{
range = NSMakeRange(0, endIndex);
}
else
{
range = NSMakeRange(0, item.message.length);
}
[string appendString:[item formattedMessageSubstringWithRange:range]];
}
}
return string;
}
#pragma mark -
#pragma mark Event Handling
- (void)mouseDown:(NSEvent *)event onSubview:(TUIView *)subview
{
[super mouseDown:event onSubview:subview];
if(![subview isKindOfClass:[MVDiscussionMessageView class]])
return;
[self resetSelectedItem];
MVDiscussionMessageView *view = (MVDiscussionMessageView*)subview;
if(([event modifierFlags] & NSShiftKeyMask) == 0)
{
[self resetSelection];
self.selectionStartItem = view.item;
}
else
[view.textRenderer resetSelection];
self.selectionEndItem = view.item;
if(view.item.type == kMVDiscussionMessageTypeTweet ||
view.item.type == kMVDiscussionMessageTypeText)
{
[view.textRenderer mouseDown:event];
NSRange selectedRange = view.textRenderer.selectedRange;
if(([event modifierFlags] & NSShiftKeyMask) == 0)
{
self.selectionStartIndex = (int)(selectedRange.location);
}
self.selectionEndIndex = (int)(selectedRange.location + selectedRange.length);
CGRect rect = [view.textRenderer firstRectForCharacterRange:CFRangeMake(selectedRange.location +
selectedRange.length,
1)];
rect.origin.x = floor(rect.origin.x-2);
rect.size.width += 3;
CGPoint pointInView = [view convertPoint:[self.nsView convertPoint:event.locationInWindow
fromView:nil]
fromView:nil];
if(CGRectContainsPoint(rect, pointInView))
{
view.activeLinkIndex = self.selectionStartIndex;
}
else
{
view.activeLinkIndex = -1;
}
[view setNeedsDisplay];
}
if(([event modifierFlags] & NSShiftKeyMask))
{
MVDiscussionMessageView *view;
NSNumber *indexPath;
for(indexPath in self.visibleViews)
{
view = [self.visibleViews objectForKey:indexPath];
if((view.item.type == kMVDiscussionMessageTypeTweet ||
view.item.type == kMVDiscussionMessageTypeText))
{
[self updateSelectedRangeForView:view];
}
}
}
if(((view.item.type == kMVDiscussionMessageTypeImage ||
view.item.type == kMVDiscussionMessageTypeRemoteImage)
&& view.item.image && view.item.asset.uploadFinished) ||
((view.item.type == kMVDiscussionMessageTypeFile ||
view.item.type == kMVDiscussionMessageTypeRemoteFile) && view.item.asset.isExisting &&
view.item.asset.uploadFinished))
{
NSPoint pointInView = [self.nsView convertPoint:event.locationInWindow fromView:nil];
pointInView = [view convertPoint:pointInView fromView:nil];
if(CGRectContainsPoint(view.bubbleRect, pointInView))
{
self.selectedItem = view.item;
self.selectedItem.selected = YES;
[view setNeedsDisplay];
}
}
if(event.clickCount >= 2 &&
((view.item.type == kMVDiscussionMessageTypeRemoteImage ||
view.item.type == kMVDiscussionMessageTypeRemoteFile) ||
((view.item.type == kMVDiscussionMessageTypeImage ||
view.item.type == kMVDiscussionMessageTypeFile) && view.item.asset.uploadFinished)))
{
NSPoint pointInView = [self.nsView convertPoint:event.locationInWindow fromView:nil];
pointInView = [view convertPoint:pointInView fromView:nil];
if(CGRectContainsPoint(view.bubbleRect, pointInView))
{
[view.item openURL];
}
}
[self.nsWindow tui_makeFirstResponder:self];
}
- (void)mouseDragged:(NSEvent *)event onSubview:(TUIView *)subview
{
[super mouseDragged:event onSubview:subview];
if(![subview isKindOfClass:[MVDiscussionMessageView class]])
return;
MVDiscussionMessageView *view = (MVDiscussionMessageView*)subview;
if(view.activeLinkIndex != -1)
{
view.activeLinkIndex = -1;
[view setNeedsDisplay];
}
CGPoint point = event.locationInWindow;
point = [self.nsView convertPoint:point fromView:nil];
point = [self convertPoint:point fromView:nil];
int startIndexPath = (int)[self.items indexOfObject:self.selectionStartItem];
NSNumber *indexPath;
for(indexPath in self.visibleViews)
{
view = [self.visibleViews objectForKey:indexPath];
if((view.item.type == kMVDiscussionMessageTypeTweet ||
view.item.type == kMVDiscussionMessageTypeText))
{
TUITextRenderer *textRenderer = view.textRenderer;
NSRange selectedRange = textRenderer.selectedRange;
int len = (int)[textRenderer.attributedString length];
if(view != subview)
{
if([indexPath intValue] < startIndexPath &&
selectedRange.location + selectedRange.length != len)
{
textRenderer.selection = NSMakeRange(len, 0);
}
else if([indexPath intValue] > startIndexPath &&
selectedRange.location != 0)
{