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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_view.h"
#include "chrome/browser/bookmarks/bookmark_pasteboard_helper_mac.h"
#include "chrome/browser/metrics/user_metrics.h"
#import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h"
#import "chrome/browser/ui/cocoa/bookmarks/bookmark_folder_target.h"
#import "third_party/mozilla/NSPasteboard+Utils.h"
@implementation BookmarkBarFolderView
@synthesize dropIndicatorShown = dropIndicatorShown_;
@synthesize dropIndicatorPosition = dropIndicatorPosition_;
- (void)awakeFromNib {
NSArray* types = [NSArray arrayWithObjects:
NSStringPboardType,
NSHTMLPboardType,
NSURLPboardType,
kBookmarkButtonDragType,
kBookmarkDictionaryListPboardType,
nil];
[self registerForDraggedTypes:types];
}
- (void)dealloc {
[self unregisterDraggedTypes];
[super dealloc];
}
- (id<BookmarkButtonControllerProtocol>)controller {
// When needed for testing, set the local data member |controller_| to
// the test controller.
return controller_ ? controller_ : [[self window] windowController];
}
- (void)setController:(id)controller {
controller_ = controller;
}
- (void)drawRect:(NSRect)rect {
// TODO(jrg): copied from bookmark_bar_view but orientation changed.
// Code dup sucks but I'm not sure I can take 16 lines and make it
// generic for horiz vs vertical while keeping things simple.
// TODO(jrg): when throwing it all away and using animations, try
// hard to make a common routine for both.
// http://crbug.com/35966, http://crbug.com/35968
// Draw the bookmark-button-dragging drop indicator if necessary.
if (dropIndicatorShown_) {
const CGFloat kBarHeight = 1;
const CGFloat kBarHorizPad = 4;
const CGFloat kBarOpacity = 0.85;
NSRect uglyBlackBar =
NSMakeRect(kBarHorizPad, dropIndicatorPosition_,
NSWidth([self bounds]) - 2*kBarHorizPad,
kBarHeight);
NSColor* uglyBlackBarColor = [NSColor blackColor];
[[uglyBlackBarColor colorWithAlphaComponent:kBarOpacity] setFill];
[[NSBezierPath bezierPathWithRect:uglyBlackBar] fill];
}
}
// TODO(mrossetti,jrg): Identical to -[BookmarkBarView
// dragClipboardContainsBookmarks]. http://crbug.com/35966
// Shim function to assist in unit testing.
- (BOOL)dragClipboardContainsBookmarks {
return bookmark_pasteboard_helper_mac::DragClipboardContainsBookmarks();
}
// Virtually identical to [BookmarkBarView draggingEntered:].
// TODO(jrg): find a way to share code. Lack of multiple inheritance
// makes things more of a pain but there should be no excuse for laziness.
// http://crbug.com/35966
- (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)info {
inDrag_ = YES;
if ([[info draggingPasteboard] dataForType:kBookmarkButtonDragType] ||
[self dragClipboardContainsBookmarks] ||
[[info draggingPasteboard] containsURLData]) {
// Find the position of the drop indicator.
BOOL showIt = [[self controller]
shouldShowIndicatorShownForPoint:[info draggingLocation]];
if (!showIt) {
if (dropIndicatorShown_) {
dropIndicatorShown_ = NO;
[self setNeedsDisplay:YES];
}
} else {
CGFloat y =
[[self controller]
indicatorPosForDragToPoint:[info draggingLocation]];
// Need an update if the indicator wasn't previously shown or if it has
// moved.
if (!dropIndicatorShown_ || dropIndicatorPosition_ != y) {
dropIndicatorShown_ = YES;
dropIndicatorPosition_ = y;
[self setNeedsDisplay:YES];
}
}
[[self controller] draggingEntered:info]; // allow hover-open to work
return [info draggingSource] ? NSDragOperationMove : NSDragOperationCopy;
}
return NSDragOperationNone;
}
- (void)draggingExited:(id<NSDraggingInfo>)info {
[[self controller] draggingExited:info];
// Regardless of the type of dragging which ended, we need to get rid of the
// drop indicator if one was shown.
if (dropIndicatorShown_) {
dropIndicatorShown_ = NO;
[self setNeedsDisplay:YES];
}
}
- (void)draggingEnded:(id<NSDraggingInfo>)info {
// Awkwardness since views open and close out from under us.
if (inDrag_) {
inDrag_ = NO;
}
[self draggingExited:info];
}
- (BOOL)wantsPeriodicDraggingUpdates {
// TODO(jrg): This should probably return |YES| and the controller should
// slide the existing bookmark buttons interactively to the side to make
// room for the about-to-be-dropped bookmark.
// http://crbug.com/35968
return NO;
}
- (NSDragOperation)draggingUpdated:(id<NSDraggingInfo>)info {
// For now it's the same as draggingEntered:.
// TODO(jrg): once we return YES for wantsPeriodicDraggingUpdates,
// this should ping the [self controller] to perform animations.
// http://crbug.com/35968
return [self draggingEntered:info];
}
- (BOOL)prepareForDragOperation:(id<NSDraggingInfo>)info {
return YES;
}
// This code is practically identical to the same function in BookmarkBarView
// with the only difference being how the controller is retrieved.
// TODO(mrossetti,jrg): http://crbug.com/35966
// Implement NSDraggingDestination protocol method
// performDragOperation: for URLs.
- (BOOL)performDragOperationForURL:(id<NSDraggingInfo>)info {
NSPasteboard* pboard = [info draggingPasteboard];
DCHECK([pboard containsURLData]);
NSArray* urls = nil;
NSArray* titles = nil;
[pboard getURLs:&urls andTitles:&titles convertingFilenames:YES];
return [[self controller] addURLs:urls
withTitles:titles
at:[info draggingLocation]];
}
// This code is practically identical to the same function in BookmarkBarView
// with the only difference being how the controller is retrieved.
// http://crbug.com/35966
// Implement NSDraggingDestination protocol method
// performDragOperation: for bookmark buttons.
- (BOOL)performDragOperationForBookmarkButton:(id<NSDraggingInfo>)info {
BOOL doDrag = NO;
NSData* data = [[info draggingPasteboard]
dataForType:kBookmarkButtonDragType];
// [info draggingSource] is nil if not the same application.
if (data && [info draggingSource]) {
BookmarkButton* button = nil;
[data getBytes:&button length:sizeof(button)];
BOOL copy = !([info draggingSourceOperationMask] & NSDragOperationMove);
doDrag = [[self controller] dragButton:button
to:[info draggingLocation]
copy:copy];
UserMetrics::RecordAction(UserMetricsAction("BookmarkBarFolder_DragEnd"));
}
return doDrag;
}
- (BOOL)performDragOperation:(id<NSDraggingInfo>)info {
if ([[self controller] dragBookmarkData:info])
return YES;
NSPasteboard* pboard = [info draggingPasteboard];
if ([pboard dataForType:kBookmarkButtonDragType] &&
[self performDragOperationForBookmarkButton:info])
return YES;
if ([pboard containsURLData] && [self performDragOperationForURL:info])
return YES;
return NO;
}
@end
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