1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_controller.h"
7 #include "base/mac/bundle_locations.h"
8 #include "base/mac/mac_util.h"
9 #include "base/strings/sys_string_conversions.h"
10 #import "chrome/browser/bookmarks/bookmark_model_factory.h"
11 #import "chrome/browser/bookmarks/chrome_bookmark_client.h"
12 #import "chrome/browser/bookmarks/chrome_bookmark_client_factory.h"
13 #import "chrome/browser/profiles/profile.h"
14 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_constants.h"
15 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h"
16 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_button_cell.h"
17 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_hover_state.h"
18 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_view.h"
19 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_window.h"
20 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_folder_target.h"
21 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_menu_cocoa_controller.h"
22 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
23 #include "components/bookmarks/browser/bookmark_model.h"
24 #include "components/bookmarks/browser/bookmark_node_data.h"
25 #include "ui/base/theme_provider.h"
27 using bookmarks::kBookmarkBarMenuCornerRadius;
31 // Frequency of the scrolling timer in seconds.
32 const NSTimeInterval kBookmarkBarFolderScrollInterval = 0.1;
34 // Amount to scroll by per timer fire. We scroll rather slowly; to
35 // accomodate we do several at a time.
36 const CGFloat kBookmarkBarFolderScrollAmount =
37 3 * bookmarks::kBookmarkFolderButtonHeight;
39 // Amount to scroll for each scroll wheel roll.
40 const CGFloat kBookmarkBarFolderScrollWheelAmount =
41 1 * bookmarks::kBookmarkFolderButtonHeight;
43 // Determining adjustments to the layout of the folder menu window in response
44 // to resizing and scrolling relies on many visual factors. The following
45 // struct is used to pass around these factors to the several support
46 // functions involved in the adjustment calculations and application.
47 struct LayoutMetrics {
48 // Metrics applied during the final layout adjustments to the window,
49 // the main visible content view, and the menu content view (i.e. the
53 // The proposed and then final scrolling adjustment made to the scrollable
54 // area of the folder menu. This may be modified during the window layout
55 // primarily as a result of hiding or showing the scroll arrows.
61 // The difference between 'could' and 'can' in these next four data members
62 // is this: 'could' represents the previous condition for scrollability
63 // while 'can' represents what the new condition will be for scrollability.
68 // Determines the optimal time during folder menu layout when the contents
69 // of the button scroll area should be scrolled in order to prevent
73 // Intermediate metrics used in determining window vertical layout changes.
74 CGFloat deltaWindowHeight;
76 CGFloat deltaVisibleHeight;
77 CGFloat deltaVisibleY;
78 CGFloat deltaScrollerHeight;
79 CGFloat deltaScrollerY;
81 // Convenience metrics used in multiple functions (carried along here in
82 // order to eliminate the need to calculate in multiple places and
83 // reduce the possibility of bugs).
85 // Bottom of the screen's available area (excluding dock height and padding).
87 // Bottom of the screen.
88 CGFloat screenBottomY;
93 LayoutMetrics(CGFloat windowLeft, NSSize windowSize, CGFloat scrollDelta) :
94 windowLeft(windowLeft),
95 windowSize(windowSize),
96 scrollDelta(scrollDelta),
102 deltaWindowHeight(0.0),
104 deltaVisibleHeight(0.0),
106 deltaScrollerHeight(0.0),
115 NSRect GetFirstButtonFrameForHeight(CGFloat height) {
116 CGFloat y = height - bookmarks::kBookmarkFolderButtonHeight -
117 bookmarks::kBookmarkVerticalPadding;
118 return NSMakeRect(0, y, bookmarks::kDefaultBookmarkWidth,
119 bookmarks::kBookmarkFolderButtonHeight);
125 // Required to set the right tracking bounds for our fake menus.
126 @interface NSView(Private)
127 - (void)_updateTrackingAreas;
130 @interface BookmarkBarFolderController(Private)
131 - (void)configureWindow;
132 - (void)addOrUpdateScrollTracking;
133 - (void)removeScrollTracking;
135 - (void)addScrollTimerWithDelta:(CGFloat)delta;
137 // Helper function to configureWindow which performs a basic layout of
138 // the window subviews, in particular the menu buttons and the window width.
139 - (void)layOutWindowWithHeight:(CGFloat)height;
141 // Determine the best button width (which will be the widest button or the
142 // maximum allowable button width, whichever is less) and resize all buttons.
143 // Return the new width so that the window can be adjusted.
144 - (CGFloat)adjustButtonWidths;
146 // Returns the total menu height needed to display |buttonCount| buttons.
147 // Does not do any fancy tricks like trimming the height to fit on the screen.
148 - (int)menuHeightForButtonCount:(int)buttonCount;
150 // Adjust layout of the folder menu window components, showing/hiding the
151 // scroll up/down arrows, and resizing as necessary for a proper disaplay.
152 // In order to reduce window flicker, all layout changes are deferred until
153 // the final step of the adjustment. To accommodate this deferral, window
154 // height and width changes needed by callers to this function pass their
155 // desired window changes in |size|. When scrolling is to be performed
156 // any scrolling change is given by |scrollDelta|. The ultimate amount of
157 // scrolling may be different from |scrollDelta| in order to accommodate
158 // changes in the scroller view layout. These proposed window adjustments
159 // are passed to helper functions using a LayoutMetrics structure.
161 // This function should be called when: 1) initially setting up a folder menu
162 // window, 2) responding to scrolling of the contents (which may affect the
163 // height of the window), 3) addition or removal of bookmark items (such as
164 // during cut/paste/delete/drag/drop operations).
165 - (void)adjustWindowLeft:(CGFloat)windowLeft
166 size:(NSSize)windowSize
167 scrollingBy:(CGFloat)scrollDelta;
169 // Support function for adjustWindowLeft:size:scrollingBy: which initializes
170 // the layout adjustments by gathering current folder menu window and subviews
171 // positions and sizes. This information is set in the |layoutMetrics|
173 - (void)gatherMetrics:(LayoutMetrics*)layoutMetrics;
175 // Support function for adjustWindowLeft:size:scrollingBy: which calculates
176 // the changes which must be applied to the folder menu window and subviews
177 // positions and sizes. |layoutMetrics| contains the proposed window size
178 // and scrolling along with the other current window and subview layout
179 // information. The values in |layoutMetrics| are then adjusted to
180 // accommodate scroll arrow presentation and window growth.
181 - (void)adjustMetrics:(LayoutMetrics*)layoutMetrics;
183 // Support function for adjustMetrics: which calculates the layout changes
184 // required to accommodate changes in the position and scrollability
185 // of the top of the folder menu window.
186 - (void)adjustMetricsForMenuTopChanges:(LayoutMetrics*)layoutMetrics;
188 // Support function for adjustMetrics: which calculates the layout changes
189 // required to accommodate changes in the position and scrollability
190 // of the bottom of the folder menu window.
191 - (void)adjustMetricsForMenuBottomChanges:(LayoutMetrics*)layoutMetrics;
193 // Support function for adjustWindowLeft:size:scrollingBy: which applies
194 // the layout adjustments to the folder menu window and subviews.
195 - (void)applyMetrics:(LayoutMetrics*)layoutMetrics;
197 // This function is called when buttons are added or removed from the folder
198 // menu, and which may require a change in the layout of the folder menu
199 // window. Such layout changes may include horizontal placement, width,
200 // height, and scroller visibility changes. (This function calls through
201 // to -[adjustWindowLeft:size:scrollingBy:].)
202 // |buttonCount| should contain the updated count of menu buttons.
203 - (void)adjustWindowForButtonCount:(NSUInteger)buttonCount;
205 // A helper function which takes the desired amount to scroll, given by
206 // |scrollDelta|, and calculates the actual scrolling change to be applied
207 // taking into account the layout of the folder menu window and any
208 // changes in it's scrollability. (For example, when scrolling down and the
209 // top-most menu item is coming into view we will only scroll enough for
210 // that item to be completely presented, which may be less than the
211 // scroll amount requested.)
212 - (CGFloat)determineFinalScrollDelta:(CGFloat)scrollDelta;
214 // |point| is in the base coordinate system of the destination window;
215 // it comes from an id<NSDraggingInfo>. |copy| is YES if a copy is to be
216 // made and inserted into the new location while leaving the bookmark in
217 // the old location, otherwise move the bookmark by removing from its old
218 // location and inserting into the new location.
219 - (BOOL)dragBookmark:(const BookmarkNode*)sourceNode
225 @interface BookmarkButton (BookmarkBarFolderMenuHighlighting)
227 // Make the button's border frame always appear when |forceOn| is YES,
228 // otherwise only border the button when the mouse is inside the button.
229 - (void)forceButtonBorderToStayOnAlways:(BOOL)forceOn;
233 @implementation BookmarkButton (BookmarkBarFolderMenuHighlighting)
235 - (void)forceButtonBorderToStayOnAlways:(BOOL)forceOn {
236 [self setShowsBorderOnlyWhileMouseInside:!forceOn];
237 [self setNeedsDisplay];
242 @implementation BookmarkBarFolderController
244 @synthesize subFolderGrowthToRight = subFolderGrowthToRight_;
246 - (id)initWithParentButton:(BookmarkButton*)button
247 parentController:(BookmarkBarFolderController*)parentController
248 barController:(BookmarkBarController*)barController
249 profile:(Profile*)profile {
251 [base::mac::FrameworkBundle() pathForResource:@"BookmarkBarFolderWindow"
253 if ((self = [super initWithWindowNibPath:nibPath owner:self])) {
254 parentButton_.reset([button retain]);
259 // We want the button to remain bordered as part of the menu path.
260 [button forceButtonBorderToStayOnAlways:YES];
262 // Pick the parent button's screen to be the screen upon which all display
263 // happens. This loop over all screens is not equivalent to
264 // |[[button window] screen]|. BookmarkButtons are commonly positioned near
265 // the edge of their windows (both in the bookmark bar and in other bookmark
266 // menus), and |[[button window] screen]| would return the screen that the
267 // majority of their window was on even if the parent button were clearly
268 // contained within a different screen.
269 NSRect parentButtonGlobalFrame =
270 [button convertRect:[button bounds] toView:nil];
271 parentButtonGlobalFrame.origin =
272 [[button window] convertBaseToScreen:parentButtonGlobalFrame.origin];
273 for (NSScreen* screen in [NSScreen screens]) {
274 if (NSIntersectsRect([screen frame], parentButtonGlobalFrame)) {
280 // The parent button is offscreen. The ideal thing to do would be to
281 // calculate the "closest" screen, the screen which has an edge parallel
282 // to, and the least distance from, one of the edges of the button.
283 // However, popping a subfolder from an offscreen button is an unrealistic
284 // edge case and so this ideal remains unrealized. Cheat instead; this
285 // code is wrong but a lot simpler.
286 screen_ = [[button window] screen];
289 parentController_.reset([parentController retain]);
290 if (!parentController_)
291 [self setSubFolderGrowthToRight:YES];
293 [self setSubFolderGrowthToRight:[parentController
294 subFolderGrowthToRight]];
295 barController_ = barController; // WEAK
296 buttons_.reset([[NSMutableArray alloc] init]);
298 [[BookmarkFolderTarget alloc] initWithController:self profile:profile]);
299 [self configureWindow];
300 hoverState_.reset([[BookmarkBarFolderHoverState alloc] init]);
306 [self clearInputText];
308 // The button is no longer part of the menu path.
309 [parentButton_ forceButtonBorderToStayOnAlways:NO];
310 [parentButton_ setNeedsDisplay];
312 [self removeScrollTracking];
314 [hoverState_ draggingExited];
316 // Delegate pattern does not retain; make sure pointers to us are removed.
317 for (BookmarkButton* button in buttons_.get()) {
318 [button setDelegate:nil];
319 [button setTarget:nil];
320 [button setAction:nil];
323 // Note: we don't need to
324 // [NSObject cancelPreviousPerformRequestsWithTarget:self];
325 // Because all of our performSelector: calls use withDelay: which
330 - (void)awakeFromNib {
331 NSRect windowFrame = [[self window] frame];
332 NSRect scrollViewFrame = [scrollView_ frame];
333 padding_ = NSWidth(windowFrame) - NSWidth(scrollViewFrame);
334 verticalScrollArrowHeight_ = NSHeight([scrollUpArrowView_ frame]);
337 // Overriden from NSWindowController to call childFolderWillShow: before showing
339 - (void)showWindow:(id)sender {
340 [barController_ childFolderWillShow:self];
341 [super showWindow:sender];
345 return [[self buttons] count];
348 - (BookmarkButton*)parentButton {
349 return parentButton_.get();
352 - (void)offsetFolderMenuWindow:(NSSize)offset {
353 NSWindow* window = [self window];
354 NSRect windowFrame = [window frame];
355 windowFrame.origin.x -= offset.width;
356 windowFrame.origin.y += offset.height; // Yes, in the opposite direction!
357 [window setFrame:windowFrame display:YES];
358 [folderController_ offsetFolderMenuWindow:offset];
361 - (void)reconfigureMenu {
362 [NSObject cancelPreviousPerformRequestsWithTarget:self];
363 for (BookmarkButton* button in buttons_.get()) {
364 [button setDelegate:nil];
365 [button removeFromSuperview];
367 [buttons_ removeAllObjects];
368 [self configureWindow];
371 #pragma mark Private Methods
373 - (BookmarkButtonCell*)cellForBookmarkNode:(const BookmarkNode*)child {
374 NSImage* image = child ? [barController_ faviconForNode:child] : nil;
375 BookmarkContextMenuCocoaController* menuController =
376 [barController_ menuController];
377 BookmarkBarFolderButtonCell* cell =
378 [BookmarkBarFolderButtonCell buttonCellForNode:child
381 menuController:menuController];
382 [cell setTag:kStandardButtonTypeWithLimitedClickFeedback];
386 // Redirect to our logic shared with BookmarkBarController.
387 - (IBAction)openBookmarkFolderFromButton:(id)sender {
388 [folderTarget_ openBookmarkFolderFromButton:sender];
391 // Create a bookmark button for the given node using frame.
393 // If |node| is NULL this is an "(empty)" button.
394 // Does NOT add this button to our button list.
395 // Returns an autoreleased button.
396 // Adjusts the input frame width as appropriate.
398 // TODO(jrg): combine with addNodesToButtonList: code from
399 // bookmark_bar_controller.mm, and generalize that to use both x and y
401 // http://crbug.com/35966
402 - (BookmarkButton*)makeButtonForNode:(const BookmarkNode*)node
403 frame:(NSRect)frame {
404 BookmarkButtonCell* cell = [self cellForBookmarkNode:node];
407 // We must decide if we draw the folder arrow before we ask the cell
408 // how big it needs to be.
409 if (node && node->is_folder()) {
410 // Warning when combining code with bookmark_bar_controller.mm:
411 // this call should NOT be made for the bar buttons; only for the
412 // subfolder buttons.
413 [cell setDrawFolderArrow:YES];
416 // The "+2" is needed because, sometimes, Cocoa is off by a tad when
417 // returning the value it thinks it needs.
418 CGFloat desired = [cell cellSize].width + 2;
419 // The width is determined from the maximum of the proposed width
420 // (provided in |frame|) or the natural width of the title, then
421 // limited by the abolute minimum and maximum allowable widths.
423 std::min(std::max(bookmarks::kBookmarkMenuButtonMinimumWidth,
424 std::max(frame.size.width, desired)),
425 bookmarks::kBookmarkMenuButtonMaximumWidth);
427 BookmarkButton* button = [[[BookmarkButton alloc] initWithFrame:frame]
431 [button setCell:cell];
432 [button setDelegate:self];
434 if (node->is_folder()) {
435 [button setTarget:self];
436 [button setAction:@selector(openBookmarkFolderFromButton:)];
438 // Make the button do something.
439 [button setTarget:barController_];
440 [button setAction:@selector(openBookmark:)];
442 [button setToolTip:[BookmarkMenuCocoaController tooltipForNode:node]];
443 [button setAcceptsTrackIn:YES];
446 [button setEnabled:NO];
447 [button setBordered:NO];
453 return folderTarget_.get();
457 // Our parent controller is another BookmarkBarFolderController, so
458 // our window is to the right or left of it. We use a little overlap
459 // since it looks much more menu-like than with none. If we would
460 // grow off the screen, switch growth to the other direction. Growth
461 // direction sticks for folder windows which are descendents of us.
462 // If we have tried both directions and neither fits, degrade to a
464 - (CGFloat)childFolderWindowLeftForWidth:(int)windowWidth {
465 // We may legitimately need to try two times (growth to right and
466 // left but not in that order). Limit us to three tries in case
467 // the folder window can't fit on either side of the screen; we
468 // don't want to loop forever.
472 // Try to grow right.
473 if ([self subFolderGrowthToRight]) {
475 x = NSMaxX([[parentButton_ window] frame]) -
476 bookmarks::kBookmarkMenuOverlap;
477 // If off the screen, switch direction.
478 if ((x + windowWidth +
479 bookmarks::kBookmarkHorizontalScreenPadding) >
480 NSMaxX([screen_ visibleFrame])) {
481 [self setSubFolderGrowthToRight:NO];
487 if (![self subFolderGrowthToRight]) {
489 x = NSMinX([[parentButton_ window] frame]) +
490 bookmarks::kBookmarkMenuOverlap -
492 // If off the screen, switch direction.
493 if (x < NSMinX([screen_ visibleFrame])) {
494 [self setSubFolderGrowthToRight:YES];
500 // Unhappy; do the best we can.
501 return NSMaxX([screen_ visibleFrame]) - windowWidth;
505 // Compute and return the top left point of our window (screen
506 // coordinates). The top left is positioned in a manner similar to
507 // cascading menus. Windows may grow to either the right or left of
508 // their parent (if a sub-folder) so we need to know |windowWidth|.
509 - (NSPoint)windowTopLeftForWidth:(int)windowWidth height:(int)windowHeight {
510 CGFloat kMinSqueezedMenuHeight = bookmarks::kBookmarkFolderButtonHeight * 2.0;
511 NSPoint newWindowTopLeft;
512 if (![parentController_ isKindOfClass:[self class]]) {
513 // If we're not popping up from one of ourselves, we must be
514 // popping up from the bookmark bar itself. In this case, start
515 // BELOW the parent button. Our left is the button left; our top
516 // is bottom of button's parent view.
517 NSPoint buttonBottomLeftInScreen =
518 [[parentButton_ window]
519 convertBaseToScreen:[parentButton_
520 convertPoint:NSZeroPoint toView:nil]];
521 NSPoint bookmarkBarBottomLeftInScreen =
522 [[parentButton_ window]
523 convertBaseToScreen:[[parentButton_ superview]
524 convertPoint:NSZeroPoint toView:nil]];
525 newWindowTopLeft = NSMakePoint(
526 buttonBottomLeftInScreen.x + bookmarks::kBookmarkBarButtonOffset,
527 bookmarkBarBottomLeftInScreen.y + bookmarks::kBookmarkBarMenuOffset);
528 // Make sure the window is on-screen; if not, push left. It is
529 // intentional that top level folders "push left" slightly
530 // different than subfolders.
531 NSRect screenFrame = [screen_ visibleFrame];
532 CGFloat spillOff = (newWindowTopLeft.x + windowWidth) - NSMaxX(screenFrame);
533 if (spillOff > 0.0) {
534 newWindowTopLeft.x = std::max(newWindowTopLeft.x - spillOff,
535 NSMinX(screenFrame));
537 // The menu looks bad when it is squeezed up against the bottom of the
538 // screen and ends up being only a few pixels tall. If it meets the
539 // threshold for this case, instead show the menu above the button.
540 CGFloat availableVerticalSpace = newWindowTopLeft.y -
541 (NSMinY(screenFrame) + bookmarks::kScrollWindowVerticalMargin);
542 if ((availableVerticalSpace < kMinSqueezedMenuHeight) &&
543 (windowHeight > availableVerticalSpace)) {
544 newWindowTopLeft.y = std::min(
545 newWindowTopLeft.y + windowHeight + NSHeight([parentButton_ frame]),
546 NSMaxY(screenFrame));
549 // Parent is a folder: expose as much as we can vertically; grow right/left.
550 newWindowTopLeft.x = [self childFolderWindowLeftForWidth:windowWidth];
551 NSPoint topOfWindow = NSMakePoint(0,
552 NSMaxY([parentButton_ frame]) -
553 bookmarks::kBookmarkVerticalPadding);
554 topOfWindow = [[parentButton_ window]
555 convertBaseToScreen:[[parentButton_ superview]
556 convertPoint:topOfWindow toView:nil]];
557 newWindowTopLeft.y = topOfWindow.y +
558 2 * bookmarks::kBookmarkVerticalPadding;
560 return newWindowTopLeft;
563 // Set our window level to the right spot so we're above the menubar, dock, etc.
564 // Factored out so we can override/noop in a unit test.
565 - (void)configureWindowLevel {
566 [[self window] setLevel:NSPopUpMenuWindowLevel];
569 - (int)menuHeightForButtonCount:(int)buttonCount {
570 // This does not take into account any padding which may be required at the
571 // top and/or bottom of the window.
572 return (buttonCount * bookmarks::kBookmarkFolderButtonHeight) +
573 2 * bookmarks::kBookmarkVerticalPadding;
576 - (void)adjustWindowLeft:(CGFloat)windowLeft
577 size:(NSSize)windowSize
578 scrollingBy:(CGFloat)scrollDelta {
579 // Callers of this function should make adjustments to the vertical
580 // attributes of the folder view only (height, scroll position).
581 // This function will then make appropriate layout adjustments in order
582 // to accommodate screen/dock margins, scroll-up and scroll-down arrow
583 // presentation, etc.
584 // The 4 views whose vertical height and origins may be adjusted
585 // by this function are:
586 // 1) window, 2) visible content view, 3) scroller view, 4) folder view.
588 LayoutMetrics layoutMetrics(windowLeft, windowSize, scrollDelta);
589 [self gatherMetrics:&layoutMetrics];
590 [self adjustMetrics:&layoutMetrics];
591 [self applyMetrics:&layoutMetrics];
594 - (void)gatherMetrics:(LayoutMetrics*)layoutMetrics {
595 LayoutMetrics& metrics(*layoutMetrics);
596 NSWindow* window = [self window];
597 metrics.windowFrame = [window frame];
598 metrics.visibleFrame = [visibleView_ frame];
599 metrics.scrollerFrame = [scrollView_ frame];
600 metrics.scrollPoint = [scrollView_ documentVisibleRect].origin;
601 metrics.scrollPoint.y -= metrics.scrollDelta;
602 metrics.couldScrollUp = ![scrollUpArrowView_ isHidden];
603 metrics.couldScrollDown = ![scrollDownArrowView_ isHidden];
605 metrics.deltaWindowHeight = 0.0;
606 metrics.deltaWindowY = 0.0;
607 metrics.deltaVisibleHeight = 0.0;
608 metrics.deltaVisibleY = 0.0;
609 metrics.deltaScrollerHeight = 0.0;
610 metrics.deltaScrollerY = 0.0;
612 metrics.minimumY = NSMinY([screen_ visibleFrame]) +
613 bookmarks::kScrollWindowVerticalMargin;
614 metrics.screenBottomY = NSMinY([screen_ frame]);
615 metrics.oldWindowY = NSMinY(metrics.windowFrame);
617 metrics.scrollerFrame.origin.y + metrics.visibleFrame.origin.y +
618 metrics.oldWindowY - metrics.scrollPoint.y;
619 metrics.folderTop = metrics.folderY + NSHeight([folderView_ frame]);
622 - (void)adjustMetrics:(LayoutMetrics*)layoutMetrics {
623 LayoutMetrics& metrics(*layoutMetrics);
624 CGFloat effectiveFolderY = metrics.folderY;
625 if (!metrics.couldScrollUp && !metrics.couldScrollDown)
626 effectiveFolderY -= metrics.windowSize.height;
627 metrics.canScrollUp = effectiveFolderY < metrics.minimumY;
629 NSMaxY([screen_ visibleFrame]) - bookmarks::kScrollWindowVerticalMargin;
630 metrics.canScrollDown = metrics.folderTop > maximumY;
632 // Accommodate changes in the bottom of the menu.
633 [self adjustMetricsForMenuBottomChanges:layoutMetrics];
635 // Accommodate changes in the top of the menu.
636 [self adjustMetricsForMenuTopChanges:layoutMetrics];
638 metrics.scrollerFrame.origin.y += metrics.deltaScrollerY;
639 metrics.scrollerFrame.size.height += metrics.deltaScrollerHeight;
640 metrics.visibleFrame.origin.y += metrics.deltaVisibleY;
641 metrics.visibleFrame.size.height += metrics.deltaVisibleHeight;
642 metrics.preScroll = metrics.canScrollUp && !metrics.couldScrollUp &&
643 metrics.scrollDelta == 0.0 && metrics.deltaWindowHeight >= 0.0;
644 metrics.windowFrame.origin.y += metrics.deltaWindowY;
645 metrics.windowFrame.origin.x = metrics.windowLeft;
646 metrics.windowFrame.size.height += metrics.deltaWindowHeight;
647 metrics.windowFrame.size.width = metrics.windowSize.width;
650 - (void)adjustMetricsForMenuBottomChanges:(LayoutMetrics*)layoutMetrics {
651 LayoutMetrics& metrics(*layoutMetrics);
652 if (metrics.canScrollUp) {
653 if (!metrics.couldScrollUp) {
655 metrics.deltaWindowY = metrics.screenBottomY - metrics.oldWindowY;
656 metrics.deltaWindowHeight = -metrics.deltaWindowY;
657 metrics.deltaVisibleY = metrics.minimumY - metrics.screenBottomY;
658 metrics.deltaVisibleHeight = -metrics.deltaVisibleY;
659 metrics.deltaScrollerY = verticalScrollArrowHeight_;
660 metrics.deltaScrollerHeight = -metrics.deltaScrollerY;
661 // Adjust the scroll delta if we've grown the window and it is
662 // now scroll-up-able, but don't adjust it if we've
663 // scrolled down and it wasn't scroll-up-able but now is.
664 if (metrics.canScrollDown == metrics.couldScrollDown) {
665 CGFloat deltaScroll = metrics.deltaWindowY - metrics.screenBottomY +
666 metrics.deltaScrollerY + metrics.deltaVisibleY;
667 metrics.scrollPoint.y += deltaScroll + metrics.windowSize.height;
669 } else if (!metrics.canScrollDown && metrics.windowSize.height > 0.0) {
670 metrics.scrollPoint.y += metrics.windowSize.height;
673 if (metrics.couldScrollUp) {
675 metrics.deltaWindowY = metrics.folderY - metrics.oldWindowY;
676 metrics.deltaWindowHeight = -metrics.deltaWindowY;
677 metrics.deltaVisibleY = -metrics.visibleFrame.origin.y;
678 metrics.deltaVisibleHeight = -metrics.deltaVisibleY;
679 metrics.deltaScrollerY = -verticalScrollArrowHeight_;
680 metrics.deltaScrollerHeight = -metrics.deltaScrollerY;
681 // We are no longer scroll-up-able so the scroll point drops to zero.
682 metrics.scrollPoint.y = 0.0;
685 // Check for menu height change by looking at the relative tops of the
686 // menu folder and the window folder, which previously would have been
688 metrics.deltaWindowY = NSMaxY(metrics.windowFrame) - metrics.folderTop;
689 metrics.deltaWindowHeight = -metrics.deltaWindowY;
694 - (void)adjustMetricsForMenuTopChanges:(LayoutMetrics*)layoutMetrics {
695 LayoutMetrics& metrics(*layoutMetrics);
696 if (metrics.canScrollDown == metrics.couldScrollDown) {
697 if (!metrics.canScrollDown) {
698 // Not scroll-down-able but the menu top has changed.
699 metrics.deltaWindowHeight += metrics.scrollDelta;
702 if (metrics.canScrollDown) {
704 const CGFloat maximumY = NSMaxY([screen_ visibleFrame]);
705 metrics.deltaWindowHeight += (maximumY - NSMaxY(metrics.windowFrame));
706 metrics.deltaVisibleHeight -= bookmarks::kScrollWindowVerticalMargin;
707 metrics.deltaScrollerHeight -= verticalScrollArrowHeight_;
710 metrics.deltaWindowHeight -= bookmarks::kScrollWindowVerticalMargin;
711 metrics.deltaVisibleHeight += bookmarks::kScrollWindowVerticalMargin;
712 metrics.deltaScrollerHeight += verticalScrollArrowHeight_;
717 - (void)applyMetrics:(LayoutMetrics*)layoutMetrics {
718 LayoutMetrics& metrics(*layoutMetrics);
719 // Hide or show the scroll arrows.
720 if (metrics.canScrollUp != metrics.couldScrollUp)
721 [scrollUpArrowView_ setHidden:metrics.couldScrollUp];
722 if (metrics.canScrollDown != metrics.couldScrollDown)
723 [scrollDownArrowView_ setHidden:metrics.couldScrollDown];
725 // Adjust the geometry. The order is important because of sizer dependencies.
726 [scrollView_ setFrame:metrics.scrollerFrame];
727 [visibleView_ setFrame:metrics.visibleFrame];
728 // This little bit of trickery handles the one special case where
729 // the window is now scroll-up-able _and_ going to be resized -- scroll
730 // first in order to prevent flashing.
731 if (metrics.preScroll)
732 [[scrollView_ documentView] scrollPoint:metrics.scrollPoint];
734 [[self window] setFrame:metrics.windowFrame display:YES];
736 // In all other cases we defer scrolling until the window has been resized
737 // in order to prevent flashing.
738 if (!metrics.preScroll)
739 [[scrollView_ documentView] scrollPoint:metrics.scrollPoint];
741 // TODO(maf) find a non-SPI way to do this.
742 // Hack. This is the only way I've found to get the tracking area cache
743 // to update properly during a mouse tracking loop.
744 // Without this, the item tracking-areas are wrong when using a scrollable
745 // menu with the mouse held down.
746 NSView *contentView = [[self window] contentView] ;
747 if ([contentView respondsToSelector:@selector(_updateTrackingAreas)])
748 [contentView _updateTrackingAreas];
751 if (metrics.canScrollUp != metrics.couldScrollUp ||
752 metrics.canScrollDown != metrics.couldScrollDown ||
753 metrics.scrollDelta != 0.0) {
754 if (metrics.canScrollUp || metrics.canScrollDown)
755 [self addOrUpdateScrollTracking];
757 [self removeScrollTracking];
761 - (void)adjustWindowForButtonCount:(NSUInteger)buttonCount {
762 NSRect folderFrame = [folderView_ frame];
763 CGFloat newMenuHeight =
764 (CGFloat)[self menuHeightForButtonCount:[buttons_ count]];
765 CGFloat deltaMenuHeight = newMenuHeight - NSHeight(folderFrame);
766 // If the height has changed then also change the origin, and adjust the
767 // scroll (if scrolling).
768 if ([self canScrollUp]) {
769 NSPoint scrollPoint = [scrollView_ documentVisibleRect].origin;
770 scrollPoint.y += deltaMenuHeight;
771 [[scrollView_ documentView] scrollPoint:scrollPoint];
773 folderFrame.size.height += deltaMenuHeight;
774 [folderView_ setFrameSize:folderFrame.size];
775 CGFloat windowWidth = [self adjustButtonWidths] + padding_;
776 NSPoint newWindowTopLeft = [self windowTopLeftForWidth:windowWidth
777 height:deltaMenuHeight];
778 CGFloat left = newWindowTopLeft.x;
779 NSSize newSize = NSMakeSize(windowWidth, deltaMenuHeight);
780 [self adjustWindowLeft:left size:newSize scrollingBy:0.0];
783 // Determine window size and position.
784 // Create buttons for all our nodes.
785 // TODO(jrg): break up into more and smaller routines for easier unit testing.
786 - (void)configureWindow {
787 const BookmarkNode* node = [parentButton_ bookmarkNode];
789 int startingIndex = [[parentButton_ cell] startingChildIndex];
790 DCHECK_LE(startingIndex, node->child_count());
791 // Must have at least 1 button (for "empty")
792 int buttons = std::max(node->child_count() - startingIndex, 1);
794 // Prelim height of the window. We'll trim later as needed.
795 int height = [self menuHeightForButtonCount:buttons];
796 // We'll need this soon...
799 // TODO(jrg): combine with frame code in bookmark_bar_controller.mm
800 // http://crbug.com/35966
801 NSRect buttonsOuterFrame = GetFirstButtonFrameForHeight(height);
803 // TODO(jrg): combine with addNodesToButtonList: code from
804 // bookmark_bar_controller.mm (but use y offset)
805 // http://crbug.com/35966
807 // If no children we are the empty button.
808 BookmarkButton* button = [self makeButtonForNode:nil
809 frame:buttonsOuterFrame];
810 [buttons_ addObject:button];
811 [folderView_ addSubview:button];
813 for (int i = startingIndex; i < node->child_count(); ++i) {
814 const BookmarkNode* child = node->GetChild(i);
815 BookmarkButton* button = [self makeButtonForNode:child
816 frame:buttonsOuterFrame];
817 [buttons_ addObject:button];
818 [folderView_ addSubview:button];
819 buttonsOuterFrame.origin.y -= bookmarks::kBookmarkFolderButtonHeight;
822 [self layOutWindowWithHeight:height];
825 - (void)layOutWindowWithHeight:(CGFloat)height {
826 // Lay out the window by adjusting all button widths to be consistent, then
827 // base the window width on this ideal button width.
828 CGFloat buttonWidth = [self adjustButtonWidths];
829 CGFloat windowWidth = buttonWidth + padding_;
830 NSPoint newWindowTopLeft = [self windowTopLeftForWidth:windowWidth
833 // Make sure as much of a submenu is exposed (which otherwise would be a
834 // problem if the parent button is close to the bottom of the screen).
835 if ([parentController_ isKindOfClass:[self class]]) {
836 CGFloat minimumY = NSMinY([screen_ visibleFrame]) +
837 bookmarks::kScrollWindowVerticalMargin +
839 newWindowTopLeft.y = MAX(newWindowTopLeft.y, minimumY);
842 NSWindow* window = [self window];
843 NSRect windowFrame = NSMakeRect(newWindowTopLeft.x,
844 newWindowTopLeft.y - height,
845 windowWidth, height);
846 [window setFrame:windowFrame display:NO];
848 NSRect folderFrame = NSMakeRect(0, 0, windowWidth, height);
849 [folderView_ setFrame:folderFrame];
851 // For some reason, when opening a "large" bookmark folder (containing 12 or
852 // more items) using the keyboard, the scroll view seems to want to be
853 // offset by default: [ http://crbug.com/101099 ]. Explicitly reseting the
854 // scroll position here is a bit hacky, but it does seem to work.
855 [[scrollView_ contentView] scrollToPoint:NSZeroPoint];
857 NSSize newSize = NSMakeSize(windowWidth, 0.0);
858 [self adjustWindowLeft:newWindowTopLeft.x size:newSize scrollingBy:0.0];
859 [self configureWindowLevel];
864 // TODO(mrossetti): See if the following can be moved into view's viewWillDraw:.
865 - (CGFloat)adjustButtonWidths {
866 CGFloat width = bookmarks::kBookmarkMenuButtonMinimumWidth;
867 // Use the cell's size as the base for determining the desired width of the
868 // button rather than the button's current width. -[cell cellSize] always
869 // returns the 'optimum' size of the cell based on the cell's contents even
870 // if it's less than the current button size. Relying on the button size
871 // would result in buttons that could only get wider but we want to handle
872 // the case where the widest button gets removed from a folder menu.
873 for (BookmarkButton* button in buttons_.get())
874 width = std::max(width, [[button cell] cellSize].width);
875 width = std::min(width, bookmarks::kBookmarkMenuButtonMaximumWidth);
876 // Things look and feel more menu-like if all the buttons are the
877 // full width of the window, especially if there are submenus.
878 for (BookmarkButton* button in buttons_.get()) {
879 NSRect buttonFrame = [button frame];
880 buttonFrame.size.width = width;
881 [button setFrame:buttonFrame];
886 // Start a "scroll up" timer.
887 - (void)beginScrollWindowUp {
888 [self addScrollTimerWithDelta:kBookmarkBarFolderScrollAmount];
891 // Start a "scroll down" timer.
892 - (void)beginScrollWindowDown {
893 [self addScrollTimerWithDelta:-kBookmarkBarFolderScrollAmount];
896 // End a scrolling timer. Can be called excessively with no harm.
899 [scrollTimer_ invalidate];
901 verticalScrollDelta_ = 0;
905 - (int)indexOfButton:(BookmarkButton*)button {
908 NSInteger index = [buttons_ indexOfObject:button];
909 return (index == NSNotFound) ? -1 : index;
912 - (BookmarkButton*)buttonAtIndex:(int)which {
913 if (which < 0 || which >= [self buttonCount])
915 return [buttons_ objectAtIndex:which];
918 // Private, called by performOneScroll only.
919 // If the button at index contains the mouse it will select it and return YES.
920 // Otherwise returns NO.
921 - (BOOL)selectButtonIfHoveredAtIndex:(int)index {
922 BookmarkButton* button = [self buttonAtIndex:index];
923 if ([[button cell] isMouseReallyInside]) {
924 buttonThatMouseIsIn_ = button;
925 [self setSelectedButtonByIndex:index];
931 // Perform a single scroll of the specified amount.
932 - (void)performOneScroll:(CGFloat)delta {
935 CGFloat finalDelta = [self determineFinalScrollDelta:delta];
936 if (finalDelta == 0.0)
938 int index = [self indexOfButton:buttonThatMouseIsIn_];
939 // Check for a current mouse-initiated selection.
940 BOOL maintainHoverSelection =
941 (buttonThatMouseIsIn_ &&
942 [[buttonThatMouseIsIn_ cell] isMouseReallyInside] &&
943 selectedIndex_ != -1 &&
944 index == selectedIndex_);
945 NSRect windowFrame = [[self window] frame];
946 NSSize newSize = NSMakeSize(NSWidth(windowFrame), 0.0);
947 [self adjustWindowLeft:windowFrame.origin.x
949 scrollingBy:finalDelta];
950 // We have now scrolled.
951 if (!maintainHoverSelection)
953 // Is mouse still in the same hovered button?
954 if ([[buttonThatMouseIsIn_ cell] isMouseReallyInside])
956 // The finalDelta scroll direction will tell us us whether to search up or
957 // down the buttons array for the newly hovered button.
958 if (finalDelta < 0.0) { // Scrolled up, so search backwards for new hover.
961 if ([self selectButtonIfHoveredAtIndex:index])
965 } else { // Scrolled down, so search forward for new hovered button.
967 int btnMax = [self buttonCount];
968 while (index < btnMax) {
969 if ([self selectButtonIfHoveredAtIndex:index])
976 - (CGFloat)determineFinalScrollDelta:(CGFloat)delta {
977 if ((delta > 0.0 && ![scrollUpArrowView_ isHidden]) ||
978 (delta < 0.0 && ![scrollDownArrowView_ isHidden])) {
979 NSWindow* window = [self window];
980 NSRect windowFrame = [window frame];
981 NSPoint scrollPosition = [scrollView_ documentVisibleRect].origin;
982 CGFloat scrollY = scrollPosition.y;
983 NSRect scrollerFrame = [scrollView_ frame];
984 CGFloat scrollerY = NSMinY(scrollerFrame);
985 NSRect visibleFrame = [visibleView_ frame];
986 CGFloat visibleY = NSMinY(visibleFrame);
987 CGFloat windowY = NSMinY(windowFrame);
988 CGFloat offset = scrollerY + visibleY + windowY;
992 CGFloat minimumY = NSMinY([screen_ visibleFrame]) +
993 bookmarks::kScrollWindowVerticalMargin;
994 CGFloat maxUpDelta = scrollY - offset + minimumY;
995 delta = MIN(delta, maxUpDelta);
998 NSRect screenFrame = [screen_ visibleFrame];
999 CGFloat topOfScreen = NSMaxY(screenFrame);
1000 NSRect folderFrame = [folderView_ frame];
1001 CGFloat folderHeight = NSHeight(folderFrame);
1002 CGFloat folderTop = folderHeight - scrollY + offset;
1003 CGFloat maxDownDelta =
1004 topOfScreen - folderTop - bookmarks::kScrollWindowVerticalMargin;
1005 delta = MAX(delta, maxDownDelta);
1013 // Perform a scroll of the window on the screen.
1014 // Called by a timer when scrolling.
1015 - (void)performScroll:(NSTimer*)timer {
1016 DCHECK(verticalScrollDelta_);
1017 [self performOneScroll:verticalScrollDelta_];
1021 // Add a timer to fire at a regular interval which scrolls the
1022 // window vertically |delta|.
1023 - (void)addScrollTimerWithDelta:(CGFloat)delta {
1024 if (scrollTimer_ && verticalScrollDelta_ == delta)
1027 verticalScrollDelta_ = delta;
1028 scrollTimer_ = [NSTimer timerWithTimeInterval:kBookmarkBarFolderScrollInterval
1030 selector:@selector(performScroll:)
1034 [[NSRunLoop mainRunLoop] addTimer:scrollTimer_ forMode:NSRunLoopCommonModes];
1038 // Called as a result of our tracking area. Warning: on the main
1039 // screen (of a single-screened machine), the minimum mouse y value is
1040 // 1, not 0. Also, we do not get events when the mouse is above the
1041 // menubar (to be fixed by setting the proper window level; see
1043 // Note [theEvent window] may not be our window, as we also get these messages
1044 // forwarded from BookmarkButton's mouse tracking loop.
1045 - (void)mouseMovedOrDragged:(NSEvent*)theEvent {
1046 NSPoint eventScreenLocation =
1047 [[theEvent window] convertBaseToScreen:[theEvent locationInWindow]];
1049 // Base hot spot calculations on the positions of the scroll arrow views.
1050 NSRect testRect = [scrollDownArrowView_ frame];
1051 NSPoint testPoint = [visibleView_ convertPoint:testRect.origin
1053 testPoint = [[self window] convertBaseToScreen:testPoint];
1054 CGFloat closeToTopOfScreen = testPoint.y;
1056 testRect = [scrollUpArrowView_ frame];
1057 testPoint = [visibleView_ convertPoint:testRect.origin toView:nil];
1058 testPoint = [[self window] convertBaseToScreen:testPoint];
1059 CGFloat closeToBottomOfScreen = testPoint.y + testRect.size.height;
1060 if (eventScreenLocation.y <= closeToBottomOfScreen &&
1061 ![scrollUpArrowView_ isHidden]) {
1062 [self beginScrollWindowUp];
1063 } else if (eventScreenLocation.y > closeToTopOfScreen &&
1064 ![scrollDownArrowView_ isHidden]) {
1065 [self beginScrollWindowDown];
1071 - (void)mouseMoved:(NSEvent*)theEvent {
1072 [self mouseMovedOrDragged:theEvent];
1075 - (void)mouseDragged:(NSEvent*)theEvent {
1076 [self mouseMovedOrDragged:theEvent];
1079 - (void)mouseExited:(NSEvent*)theEvent {
1083 // Add a tracking area so we know when the mouse is pinned to the top
1084 // or bottom of the screen. If that happens, and if the mouse
1085 // position overlaps the window, scroll it.
1086 - (void)addOrUpdateScrollTracking {
1087 [self removeScrollTracking];
1088 NSView* view = [[self window] contentView];
1089 scrollTrackingArea_.reset([[CrTrackingArea alloc]
1090 initWithRect:[view bounds]
1091 options:(NSTrackingMouseMoved |
1092 NSTrackingMouseEnteredAndExited |
1093 NSTrackingActiveAlways |
1094 NSTrackingEnabledDuringMouseDrag
1098 [view addTrackingArea:scrollTrackingArea_.get()];
1101 // Remove the tracking area associated with scrolling.
1102 - (void)removeScrollTracking {
1103 if (scrollTrackingArea_.get()) {
1104 [[[self window] contentView] removeTrackingArea:scrollTrackingArea_.get()];
1105 [scrollTrackingArea_.get() clearOwner];
1107 scrollTrackingArea_.reset();
1110 // Close the old hover-open bookmark folder, and open a new one. We
1111 // do both in one step to allow for a delay in closing the old one.
1112 // See comments above kDragHoverCloseDelay (bookmark_bar_controller.h)
1113 // for more details.
1114 - (void)openBookmarkFolderFromButtonAndCloseOldOne:(id)sender {
1115 // Ignore if sender button is in a window that's just been hidden - that
1116 // would leave us with an orphaned menu. BUG 69002
1117 if ([[sender window] isVisible] != YES)
1119 // If an old submenu exists, close it immediately.
1120 [self closeBookmarkFolder:sender];
1122 // Open a new one if meaningful.
1123 if ([sender isFolder])
1124 [folderTarget_ openBookmarkFolderFromButton:sender];
1127 - (NSArray*)buttons {
1128 return buttons_.get();
1132 [folderController_ close];
1136 - (void)scrollWheel:(NSEvent *)theEvent {
1137 if (![scrollUpArrowView_ isHidden] || ![scrollDownArrowView_ isHidden]) {
1138 // We go negative since an NSScrollView has a flipped coordinate frame.
1139 CGFloat amt = kBookmarkBarFolderScrollWheelAmount * -[theEvent deltaY];
1140 [self performOneScroll:amt];
1144 #pragma mark Drag & Drop
1146 // Find something like std::is_between<T>? I can't believe one doesn't exist.
1147 // http://crbug.com/35966
1148 static BOOL ValueInRangeInclusive(CGFloat low, CGFloat value, CGFloat high) {
1149 return ((value >= low) && (value <= high));
1152 // Return the proposed drop target for a hover open button, or nil if none.
1154 // TODO(jrg): this is just like the version in
1155 // bookmark_bar_controller.mm, but vertical instead of horizontal.
1156 // Generalize to be axis independent then share code.
1157 // http://crbug.com/35966
1158 - (BookmarkButton*)buttonForDroppingOnAtPoint:(NSPoint)point {
1159 NSPoint localPoint = [folderView_ convertPoint:point fromView:nil];
1160 for (BookmarkButton* button in buttons_.get()) {
1161 // No early break -- makes no assumption about button ordering.
1163 // Intentionally NOT using NSPointInRect() so that scrolling into
1164 // a submenu doesn't cause it to be closed.
1165 if (ValueInRangeInclusive(NSMinY([button frame]),
1167 NSMaxY([button frame]))) {
1169 // Over a button but let's be a little more specific
1170 // (e.g. over the middle half).
1171 NSRect frame = [button frame];
1172 NSRect middleHalfOfButton = NSInsetRect(frame, 0, frame.size.height / 4);
1173 if (ValueInRangeInclusive(NSMinY(middleHalfOfButton),
1175 NSMaxY(middleHalfOfButton))) {
1176 // It makes no sense to drop on a non-folder; there is no hover.
1177 if (![button isFolder])
1182 // Over a button but not over the middle half.
1187 // Not hovering over a button.
1191 // TODO(jrg): again we have code dup, sort of, with
1192 // bookmark_bar_controller.mm, but the axis is changed. One minor
1193 // difference is accomodation for the "empty" button (which may not
1194 // exist in the future).
1195 // http://crbug.com/35966
1196 - (int)indexForDragToPoint:(NSPoint)point {
1197 // Identify which buttons we are between. For now, assume a button
1198 // location is at the center point of its view, and that an exact
1199 // match means "place before".
1200 // TODO(jrg): revisit position info based on UI team feedback.
1201 // dropLocation is in bar local coordinates.
1202 // http://crbug.com/36276
1203 NSPoint dropLocation =
1204 [folderView_ convertPoint:point
1205 fromView:[[self window] contentView]];
1206 BookmarkButton* buttonToTheTopOfDraggedButton = nil;
1207 // Buttons are laid out in this array from top to bottom (screen
1208 // wise), which means "biggest y" --> "smallest y".
1209 for (BookmarkButton* button in buttons_.get()) {
1210 CGFloat midpoint = NSMidY([button frame]);
1211 if (dropLocation.y > midpoint) {
1214 buttonToTheTopOfDraggedButton = button;
1217 // TODO(jrg): On Windows, dropping onto (empty) highlights the
1218 // entire drop location and does not use an insertion point.
1219 // http://crbug.com/35967
1220 if (!buttonToTheTopOfDraggedButton) {
1221 // We are at the very top (we broke out of the loop on the first try).
1224 if ([buttonToTheTopOfDraggedButton isEmpty]) {
1225 // There is a button but it's an empty placeholder.
1226 // Default to inserting on top of it.
1229 const BookmarkNode* beforeNode = [buttonToTheTopOfDraggedButton
1232 // Be careful if the number of buttons != number of nodes.
1233 return ((beforeNode->parent()->GetIndexOf(beforeNode) + 1) -
1234 [[parentButton_ cell] startingChildIndex]);
1237 // TODO(jrg): Yet more code dup.
1238 // http://crbug.com/35966
1239 - (BOOL)dragBookmark:(const BookmarkNode*)sourceNode
1244 // Drop destination.
1245 const BookmarkNode* destParent = NULL;
1248 // First check if we're dropping on a button. If we have one, and
1249 // it's a folder, drop in it.
1250 BookmarkButton* button = [self buttonForDroppingOnAtPoint:point];
1251 if ([button isFolder]) {
1252 destParent = [button bookmarkNode];
1253 // Drop it at the end.
1254 destIndex = [button bookmarkNode]->child_count();
1256 // Else we're dropping somewhere in the folder, so find the right spot.
1257 destParent = [parentButton_ bookmarkNode];
1258 destIndex = [self indexForDragToPoint:point];
1259 // Be careful if the number of buttons != number of nodes.
1260 destIndex += [[parentButton_ cell] startingChildIndex];
1263 ChromeBookmarkClient* client =
1264 ChromeBookmarkClientFactory::GetForProfile(profile_);
1265 if (!client->CanBeEditedByUser(destParent))
1267 if (!client->CanBeEditedByUser(sourceNode))
1271 BOOL wasCopiedOrMoved = NO;
1272 if (!destParent->HasAncestor(sourceNode)) {
1274 [self bookmarkModel]->Copy(sourceNode, destParent, destIndex);
1276 [self bookmarkModel]->Move(sourceNode, destParent, destIndex);
1277 wasCopiedOrMoved = YES;
1278 // Movement of a node triggers observers (like us) to rebuild the
1279 // bar so we don't have to do so explicitly.
1282 return wasCopiedOrMoved;
1285 // TODO(maf): Implement live drag & drop animation using this hook.
1286 - (void)setDropInsertionPos:(CGFloat)where {
1289 // TODO(maf): Implement live drag & drop animation using this hook.
1290 - (void)clearDropInsertionPos {
1293 #pragma mark NSWindowDelegate Functions
1295 - (void)windowWillClose:(NSNotification*)notification {
1296 // Also done by the dealloc method, but also doing it here is quicker and
1298 [parentButton_ forceButtonBorderToStayOnAlways:NO];
1300 // If a "hover open" is pending when the bookmark bar folder is
1301 // closed, be sure it gets cancelled.
1302 [NSObject cancelPreviousPerformRequestsWithTarget:self];
1304 [self endScroll]; // Just in case we were scrolling.
1305 [barController_ childFolderWillClose:self];
1306 [self closeBookmarkFolder:self];
1310 #pragma mark BookmarkButtonDelegate Protocol
1312 - (void)fillPasteboard:(NSPasteboard*)pboard
1313 forDragOfButton:(BookmarkButton*)button {
1314 [[self folderTarget] fillPasteboard:pboard forDragOfButton:button];
1316 // Close our folder menu and submenus since we know we're going to be dragged.
1317 [self closeBookmarkFolder:self];
1320 // Called from BookmarkButton.
1321 // Unlike bookmark_bar_controller's version, we DO default to being enabled.
1322 - (void)mouseEnteredButton:(id)sender event:(NSEvent*)event {
1323 [[NSCursor arrowCursor] set];
1325 buttonThatMouseIsIn_ = sender;
1326 [self setSelectedButtonByIndex:[self indexOfButton:sender]];
1328 // Cancel a previous hover if needed.
1329 [NSObject cancelPreviousPerformRequestsWithTarget:self];
1331 // If already opened, then we exited but re-entered the button
1332 // (without entering another button open), do nothing.
1333 if ([folderController_ parentButton] == sender)
1336 [self performSelector:@selector(openBookmarkFolderFromButtonAndCloseOldOne:)
1338 afterDelay:bookmarks::kHoverOpenDelay
1339 inModes:[NSArray arrayWithObject:NSRunLoopCommonModes]];
1342 // Called from the BookmarkButton
1343 - (void)mouseExitedButton:(id)sender event:(NSEvent*)event {
1344 if (buttonThatMouseIsIn_ == sender)
1345 buttonThatMouseIsIn_ = nil;
1346 [self setSelectedButtonByIndex:-1];
1348 // Stop any timer about opening a new hover-open folder.
1350 // Since a performSelector:withDelay: on self retains self, it is
1351 // possible that a cancelPreviousPerformRequestsWithTarget: reduces
1352 // the refcount to 0, releasing us. That's a bad thing to do while
1353 // this object (or others it may own) is in the event chain. Thus
1354 // we have a retain/autorelease.
1356 [NSObject cancelPreviousPerformRequestsWithTarget:self];
1360 - (NSWindow*)browserWindow {
1361 return [barController_ browserWindow];
1364 - (BOOL)canDragBookmarkButtonToTrash:(BookmarkButton*)button {
1365 return [barController_ canEditBookmarks] &&
1366 [barController_ canEditBookmark:[button bookmarkNode]];
1369 - (void)didDragBookmarkToTrash:(BookmarkButton*)button {
1370 [barController_ didDragBookmarkToTrash:button];
1373 - (void)bookmarkDragDidEnd:(BookmarkButton*)button
1374 operation:(NSDragOperation)operation {
1375 [barController_ bookmarkDragDidEnd:button
1376 operation:operation];
1380 #pragma mark BookmarkButtonControllerProtocol
1382 // Recursively close all bookmark folders.
1383 - (void)closeAllBookmarkFolders {
1384 // Closing the top level implicitly closes all children.
1385 [barController_ closeAllBookmarkFolders];
1388 // Close our bookmark folder (a sub-controller) if we have one.
1389 - (void)closeBookmarkFolder:(id)sender {
1390 if (folderController_) {
1391 // Make this menu key, so key status doesn't go back to the browser
1392 // window when the submenu closes.
1393 [[self window] makeKeyWindow];
1394 [self setSubFolderGrowthToRight:YES];
1395 [[folderController_ window] close];
1396 folderController_ = nil;
1400 - (BookmarkModel*)bookmarkModel {
1401 return [barController_ bookmarkModel];
1404 - (BOOL)draggingAllowed:(id<NSDraggingInfo>)info {
1405 return [barController_ draggingAllowed:info];
1408 // TODO(jrg): Refactor BookmarkBarFolder common code. http://crbug.com/35966
1409 // Most of the work (e.g. drop indicator) is taken care of in the
1410 // folder_view. Here we handle hover open issues for subfolders.
1411 // Caution: there are subtle differences between this one and
1412 // bookmark_bar_controller.mm's version.
1413 - (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)info {
1414 NSPoint currentLocation = [info draggingLocation];
1415 BookmarkButton* button = [self buttonForDroppingOnAtPoint:currentLocation];
1417 // Don't allow drops that would result in cycles.
1419 NSData* data = [[info draggingPasteboard]
1420 dataForType:kBookmarkButtonDragType];
1421 if (data && [info draggingSource]) {
1422 BookmarkButton* sourceButton = nil;
1423 [data getBytes:&sourceButton length:sizeof(sourceButton)];
1424 const BookmarkNode* sourceNode = [sourceButton bookmarkNode];
1425 const BookmarkNode* destNode = [button bookmarkNode];
1426 if (destNode->HasAncestor(sourceNode))
1430 // Delegate handling of dragging over a button to the |hoverState_| member.
1431 return [hoverState_ draggingEnteredButton:button];
1434 - (NSDragOperation)draggingUpdated:(id<NSDraggingInfo>)info {
1435 return NSDragOperationMove;
1438 // Unlike bookmark_bar_controller, we need to keep track of dragging state.
1439 // We also need to make sure we cancel the delayed hover close.
1440 - (void)draggingExited:(id<NSDraggingInfo>)info {
1441 // NOT the same as a cancel --> we may have moved the mouse into the submenu.
1442 // Delegate handling of the hover button to the |hoverState_| member.
1443 [hoverState_ draggingExited];
1446 - (BOOL)dragShouldLockBarVisibility {
1447 return [parentController_ dragShouldLockBarVisibility];
1450 // TODO(jrg): ARGH more code dup.
1451 // http://crbug.com/35966
1452 - (BOOL)dragButton:(BookmarkButton*)sourceButton
1455 DCHECK([sourceButton isKindOfClass:[BookmarkButton class]]);
1456 const BookmarkNode* sourceNode = [sourceButton bookmarkNode];
1457 return [self dragBookmark:sourceNode to:point copy:copy];
1460 // TODO(mrossetti,jrg): Identical to the same function in BookmarkBarController.
1461 // http://crbug.com/35966
1462 - (BOOL)dragBookmarkData:(id<NSDraggingInfo>)info {
1464 std::vector<const BookmarkNode*> nodes([self retrieveBookmarkNodeData]);
1466 BOOL copy = !([info draggingSourceOperationMask] & NSDragOperationMove);
1467 NSPoint dropPoint = [info draggingLocation];
1468 for (std::vector<const BookmarkNode*>::const_iterator it = nodes.begin();
1469 it != nodes.end(); ++it) {
1470 const BookmarkNode* sourceNode = *it;
1471 dragged = [self dragBookmark:sourceNode to:dropPoint copy:copy];
1477 // TODO(mrossetti,jrg): Identical to the same function in BookmarkBarController.
1478 // http://crbug.com/35966
1479 - (std::vector<const BookmarkNode*>)retrieveBookmarkNodeData {
1480 std::vector<const BookmarkNode*> dragDataNodes;
1481 BookmarkNodeData dragData;
1482 if (dragData.ReadFromClipboard(ui::CLIPBOARD_TYPE_DRAG)) {
1483 BookmarkModel* bookmarkModel = [self bookmarkModel];
1484 std::vector<const BookmarkNode*> nodes(
1485 dragData.GetNodes(bookmarkModel, profile_->GetPath()));
1486 dragDataNodes.assign(nodes.begin(), nodes.end());
1488 return dragDataNodes;
1491 // Return YES if we should show the drop indicator, else NO.
1492 // TODO(jrg): ARGH code dup!
1493 // http://crbug.com/35966
1494 - (BOOL)shouldShowIndicatorShownForPoint:(NSPoint)point {
1495 return ![self buttonForDroppingOnAtPoint:point];
1498 // Button selection change code to support type to select and arrow key events.
1499 #pragma mark Keyboard Support
1501 // Scroll the menu to show the selected button, if it's not already visible.
1502 - (void)showSelectedButton {
1503 int bMaxIndex = [self buttonCount] - 1; // Max array index in button array.
1505 // Is there a valid selected button?
1506 if (bMaxIndex < 0 || selectedIndex_ < 0 || selectedIndex_ > bMaxIndex)
1509 // Is the menu scrollable anyway?
1510 if (![self canScrollUp] && ![self canScrollDown])
1513 // Now check to see if we need to scroll, which way, and how far.
1514 CGFloat delta = 0.0;
1515 NSPoint scrollPoint = [scrollView_ documentVisibleRect].origin;
1516 CGFloat itemBottom = (bMaxIndex - selectedIndex_) *
1517 bookmarks::kBookmarkFolderButtonHeight;
1518 CGFloat itemTop = itemBottom + bookmarks::kBookmarkFolderButtonHeight;
1519 CGFloat viewHeight = NSHeight([scrollView_ frame]);
1521 if (scrollPoint.y > itemBottom) { // Need to scroll down.
1522 delta = scrollPoint.y - itemBottom;
1523 } else if ((scrollPoint.y + viewHeight) < itemTop) { // Need to scroll up.
1524 delta = -(itemTop - (scrollPoint.y + viewHeight));
1525 } else { // No need to scroll.
1529 [self performOneScroll:delta];
1532 // All changes to selectedness of buttons (aka fake menu items) ends up
1533 // calling this method to actually flip the state of items.
1534 // Needs to handle -1 as the invalid index (when nothing is selected) and
1535 // greater than range values too.
1536 - (void)setStateOfButtonByIndex:(int)index
1538 if (index >= 0 && index < [self buttonCount])
1539 [[buttons_ objectAtIndex:index] highlight:state];
1542 // Selects the required button and deselects the previously selected one.
1543 // An index of -1 means no selection.
1544 - (void)setSelectedButtonByIndex:(int)index {
1545 if (index == selectedIndex_)
1548 [self setStateOfButtonByIndex:selectedIndex_ state:NO];
1549 [self setStateOfButtonByIndex:index state:YES];
1550 selectedIndex_ = index;
1552 [self showSelectedButton];
1555 - (void)clearInputText {
1556 [typedPrefix_ release];
1560 // Find the earliest item in the folder which has the target prefix.
1561 // Returns nil if there is no prefix or there are no matches.
1562 // These are in no particular order, and not particularly numerous, so linear
1563 // search should be OK.
1564 // -1 means no match.
1565 - (int)earliestBookmarkIndexWithPrefix:(NSString*)prefix {
1566 if ([prefix length] == 0) // Also handles nil.
1568 int maxButtons = [buttons_ count];
1569 NSString* lowercasePrefix = [prefix lowercaseString];
1570 for (int i = 0 ; i < maxButtons ; ++i) {
1571 BookmarkButton* button = [buttons_ objectAtIndex:i];
1572 if ([[[button title] lowercaseString] hasPrefix:lowercasePrefix])
1578 - (void)setSelectedButtonByPrefix:(NSString*)prefix {
1579 [self setSelectedButtonByIndex:[self earliestBookmarkIndexWithPrefix:prefix]];
1582 - (void)selectPrevious {
1584 if (selectedIndex_ == 0)
1586 if (selectedIndex_ < 0)
1587 newIndex = [self buttonCount] -1;
1589 newIndex = std::max(selectedIndex_ - 1, 0);
1590 [self setSelectedButtonByIndex:newIndex];
1593 - (void)selectNext {
1594 if (selectedIndex_ + 1 < [self buttonCount])
1595 [self setSelectedButtonByIndex:selectedIndex_ + 1];
1598 - (BOOL)handleInputText:(NSString*)newText {
1599 const unichar kUnicodeEscape = 0x001B;
1600 const unichar kUnicodeSpace = 0x0020;
1602 // Event goes to the deepest nested open submenu.
1603 if (folderController_)
1604 return [folderController_ handleInputText:newText];
1606 // Look for arrow keys or other function keys.
1607 if ([newText length] == 1) {
1608 // Get the 16-bit unicode char.
1609 unichar theChar = [newText characterAtIndex:0];
1612 // Keys that trigger opening of the selection.
1613 case kUnicodeSpace: // Space.
1614 case NSNewlineCharacter:
1615 case NSCarriageReturnCharacter:
1616 case NSEnterCharacter:
1617 if (selectedIndex_ >= 0 && selectedIndex_ < [self buttonCount]) {
1618 [barController_ openBookmark:[buttons_ objectAtIndex:selectedIndex_]];
1619 return NO; // NO because the selection-handling code will close later.
1621 return YES; // Triggering with no selection closes the menu.
1623 // Keys that cancel and close the menu.
1624 case kUnicodeEscape:
1625 case NSDeleteCharacter:
1626 case NSBackspaceCharacter:
1627 [self clearInputText];
1629 // Keys that change selection directionally.
1630 case NSUpArrowFunctionKey:
1631 [self clearInputText];
1632 [self selectPrevious];
1634 case NSDownArrowFunctionKey:
1635 [self clearInputText];
1638 // Keys that open and close submenus.
1639 case NSRightArrowFunctionKey: {
1640 BookmarkButton* btn = [self buttonAtIndex:selectedIndex_];
1641 if (btn && [btn isFolder]) {
1642 [self openBookmarkFolderFromButtonAndCloseOldOne:btn];
1643 [folderController_ selectNext];
1645 [self clearInputText];
1648 case NSLeftArrowFunctionKey:
1649 [self clearInputText];
1650 [parentController_ closeBookmarkFolder:self];
1653 // Check for other keys that should close the menu.
1655 if (theChar > NSUpArrowFunctionKey &&
1656 theChar <= NSModeSwitchFunctionKey) {
1657 [self clearInputText];
1665 // It is a char or string worth adding to the type-select buffer.
1666 NSString* newString = (!typedPrefix_) ?
1667 newText : [typedPrefix_ stringByAppendingString:newText];
1668 [typedPrefix_ release];
1669 typedPrefix_ = [newString retain];
1670 [self setSelectedButtonByPrefix:typedPrefix_];
1674 // Return the y position for a drop indicator.
1676 // TODO(jrg): again we have code dup, sort of, with
1677 // bookmark_bar_controller.mm, but the axis is changed.
1678 // http://crbug.com/35966
1679 - (CGFloat)indicatorPosForDragToPoint:(NSPoint)point {
1681 int destIndex = [self indexForDragToPoint:point];
1682 int numButtons = static_cast<int>([buttons_ count]);
1684 // If it's a drop strictly between existing buttons or at the very beginning
1685 if (destIndex >= 0 && destIndex < numButtons) {
1686 // ... put the indicator right between the buttons.
1687 BookmarkButton* button =
1688 [buttons_ objectAtIndex:static_cast<NSUInteger>(destIndex)];
1690 NSRect buttonFrame = [button frame];
1691 y = NSMaxY(buttonFrame) + 0.5 * bookmarks::kBookmarkVerticalPadding;
1693 // If it's a drop at the end (past the last button, if there are any) ...
1694 } else if (destIndex == numButtons) {
1695 // and if it's past the last button ...
1696 if (numButtons > 0) {
1697 // ... find the last button, and put the indicator below it.
1698 BookmarkButton* button =
1699 [buttons_ objectAtIndex:static_cast<NSUInteger>(destIndex - 1)];
1701 NSRect buttonFrame = [button frame];
1702 y = buttonFrame.origin.y - 0.5 * bookmarks::kBookmarkVerticalPadding;
1712 - (ThemeService*)themeService {
1713 return [parentController_ themeService];
1716 - (void)childFolderWillShow:(id<BookmarkButtonControllerProtocol>)child {
1720 - (void)childFolderWillClose:(id<BookmarkButtonControllerProtocol>)child {
1724 - (BookmarkBarFolderController*)folderController {
1725 return folderController_;
1728 - (void)faviconLoadedForNode:(const BookmarkNode*)node {
1729 for (BookmarkButton* button in buttons_.get()) {
1730 if ([button bookmarkNode] == node) {
1731 [button setImage:[barController_ faviconForNode:node]];
1732 [button setNeedsDisplay:YES];
1737 // Node was not in this menu, try submenu.
1738 if (folderController_)
1739 [folderController_ faviconLoadedForNode:node];
1742 // Add a new folder controller as triggered by the given folder button.
1743 - (void)addNewFolderControllerWithParentButton:(BookmarkButton*)parentButton {
1744 if (folderController_)
1745 [self closeBookmarkFolder:self];
1747 // Folder controller, like many window controllers, owns itself.
1749 [[BookmarkBarFolderController alloc] initWithParentButton:parentButton
1750 parentController:self
1751 barController:barController_
1753 [folderController_ showWindow:self];
1756 - (void)openAll:(const BookmarkNode*)node
1757 disposition:(WindowOpenDisposition)disposition {
1758 [barController_ openAll:node disposition:disposition];
1761 - (void)addButtonForNode:(const BookmarkNode*)node
1762 atIndex:(NSInteger)buttonIndex {
1763 // Propose the frame for the new button. By default, this will be set to the
1764 // topmost button's frame (and there will always be one) offset upward in
1765 // anticipation of insertion.
1766 NSRect newButtonFrame = [[buttons_ objectAtIndex:0] frame];
1767 newButtonFrame.origin.y += bookmarks::kBookmarkFolderButtonHeight;
1768 // When adding a button to an empty folder we must remove the 'empty'
1769 // placeholder button. This can be detected by checking for a parent
1770 // child count of 1.
1771 const BookmarkNode* parentNode = node->parent();
1772 if (parentNode->child_count() == 1) {
1773 BookmarkButton* emptyButton = [buttons_ lastObject];
1774 newButtonFrame = [emptyButton frame];
1775 [emptyButton setDelegate:nil];
1776 [emptyButton removeFromSuperview];
1777 [buttons_ removeLastObject];
1780 if (buttonIndex == -1 || buttonIndex > (NSInteger)[buttons_ count])
1781 buttonIndex = [buttons_ count];
1783 // Offset upward by one button height all buttons above insertion location.
1784 BookmarkButton* button = nil; // Remember so it can be de-highlighted.
1785 for (NSInteger i = 0; i < buttonIndex; ++i) {
1786 button = [buttons_ objectAtIndex:i];
1787 // Remember this location in case it's the last button being moved
1788 // which is where the new button will be located.
1789 newButtonFrame = [button frame];
1790 NSRect buttonFrame = [button frame];
1791 buttonFrame.origin.y += bookmarks::kBookmarkFolderButtonHeight;
1792 [button setFrame:buttonFrame];
1794 [[button cell] mouseExited:nil]; // De-highlight.
1795 BookmarkButton* newButton = [self makeButtonForNode:node
1796 frame:newButtonFrame];
1797 [buttons_ insertObject:newButton atIndex:buttonIndex];
1798 [folderView_ addSubview:newButton];
1800 // Close any child folder(s) which may still be open.
1801 [self closeBookmarkFolder:self];
1803 [self adjustWindowForButtonCount:[buttons_ count]];
1806 // More code which essentially duplicates that of BookmarkBarController.
1807 // TODO(mrossetti,jrg): http://crbug.com/35966
1808 - (BOOL)addURLs:(NSArray*)urls withTitles:(NSArray*)titles at:(NSPoint)point {
1809 DCHECK([urls count] == [titles count]);
1810 BOOL nodesWereAdded = NO;
1811 // Figure out where these new bookmarks nodes are to be added.
1812 BookmarkButton* button = [self buttonForDroppingOnAtPoint:point];
1813 BookmarkModel* bookmarkModel = [self bookmarkModel];
1814 const BookmarkNode* destParent = NULL;
1816 if ([button isFolder]) {
1817 destParent = [button bookmarkNode];
1818 // Drop it at the end.
1819 destIndex = [button bookmarkNode]->child_count();
1821 // Else we're dropping somewhere in the folder, so find the right spot.
1822 destParent = [parentButton_ bookmarkNode];
1823 destIndex = [self indexForDragToPoint:point];
1824 // Be careful if the number of buttons != number of nodes.
1825 destIndex += [[parentButton_ cell] startingChildIndex];
1828 ChromeBookmarkClient* client =
1829 ChromeBookmarkClientFactory::GetForProfile(profile_);
1830 if (!client->CanBeEditedByUser(destParent))
1833 // Create and add the new bookmark nodes.
1834 size_t urlCount = [urls count];
1835 for (size_t i = 0; i < urlCount; ++i) {
1837 const char* string = [[urls objectAtIndex:i] UTF8String];
1839 gurl = GURL(string);
1840 // We only expect to receive valid URLs.
1841 DCHECK(gurl.is_valid());
1842 if (gurl.is_valid()) {
1843 bookmarkModel->AddURL(destParent,
1845 base::SysNSStringToUTF16([titles objectAtIndex:i]),
1847 nodesWereAdded = YES;
1850 return nodesWereAdded;
1853 - (void)moveButtonFromIndex:(NSInteger)fromIndex toIndex:(NSInteger)toIndex {
1854 if (fromIndex != toIndex) {
1856 toIndex = [buttons_ count];
1857 BookmarkButton* movedButton = [buttons_ objectAtIndex:fromIndex];
1858 if (movedButton == buttonThatMouseIsIn_)
1859 buttonThatMouseIsIn_ = nil;
1860 [buttons_ removeObjectAtIndex:fromIndex];
1861 NSRect movedFrame = [movedButton frame];
1862 NSPoint toOrigin = movedFrame.origin;
1863 [movedButton setHidden:YES];
1864 if (fromIndex < toIndex) {
1865 BookmarkButton* targetButton = [buttons_ objectAtIndex:toIndex - 1];
1866 toOrigin = [targetButton frame].origin;
1867 for (NSInteger i = fromIndex; i < toIndex; ++i) {
1868 BookmarkButton* button = [buttons_ objectAtIndex:i];
1869 NSRect frame = [button frame];
1870 frame.origin.y += bookmarks::kBookmarkFolderButtonHeight;
1871 [button setFrameOrigin:frame.origin];
1874 BookmarkButton* targetButton = [buttons_ objectAtIndex:toIndex];
1875 toOrigin = [targetButton frame].origin;
1876 for (NSInteger i = fromIndex - 1; i >= toIndex; --i) {
1877 BookmarkButton* button = [buttons_ objectAtIndex:i];
1878 NSRect buttonFrame = [button frame];
1879 buttonFrame.origin.y -= bookmarks::kBookmarkFolderButtonHeight;
1880 [button setFrameOrigin:buttonFrame.origin];
1883 [buttons_ insertObject:movedButton atIndex:toIndex];
1884 [movedButton setFrameOrigin:toOrigin];
1885 [movedButton setHidden:NO];
1889 // TODO(jrg): Refactor BookmarkBarFolder common code. http://crbug.com/35966
1890 - (void)removeButton:(NSInteger)buttonIndex animate:(BOOL)animate {
1891 // TODO(mrossetti): Get disappearing animation to work. http://crbug.com/42360
1892 BookmarkButton* oldButton = [buttons_ objectAtIndex:buttonIndex];
1893 NSPoint poofPoint = [oldButton screenLocationForRemoveAnimation];
1895 // If this button has an open sub-folder, close it.
1896 if ([folderController_ parentButton] == oldButton)
1897 [self closeBookmarkFolder:self];
1899 // If a hover-open is pending, cancel it.
1900 if (oldButton == buttonThatMouseIsIn_) {
1901 [NSObject cancelPreviousPerformRequestsWithTarget:self];
1902 buttonThatMouseIsIn_ = nil;
1905 // Deleting a button causes rearrangement that enables us to lose a
1906 // mouse-exited event. This problem doesn't appear to exist with
1907 // other keep-menu-open options (e.g. add folder). Since the
1908 // showsBorderOnlyWhileMouseInside uses a tracking area, simple
1909 // tricks (e.g. sending an extra mouseExited: to the button) don't
1911 // http://crbug.com/54324
1912 for (NSButton* button in buttons_.get()) {
1913 if ([button showsBorderOnlyWhileMouseInside]) {
1914 [button setShowsBorderOnlyWhileMouseInside:NO];
1915 [button setShowsBorderOnlyWhileMouseInside:YES];
1919 [oldButton setDelegate:nil];
1920 [oldButton removeFromSuperview];
1921 [buttons_ removeObjectAtIndex:buttonIndex];
1922 for (NSInteger i = 0; i < buttonIndex; ++i) {
1923 BookmarkButton* button = [buttons_ objectAtIndex:i];
1924 NSRect buttonFrame = [button frame];
1925 buttonFrame.origin.y -= bookmarks::kBookmarkFolderButtonHeight;
1926 [button setFrame:buttonFrame];
1928 // Search for and adjust submenus, if necessary.
1929 NSInteger buttonCount = [buttons_ count];
1931 BookmarkButton* subButton = [folderController_ parentButton];
1932 for (NSButton* aButton in buttons_.get()) {
1933 // If this button is showing its menu then we need to move the menu, too.
1934 if (aButton == subButton)
1936 offsetFolderMenuWindow:NSMakeSize(0.0, chrome::kBookmarkBarHeight)];
1939 // If all nodes have been removed from this folder then add in the
1940 // 'empty' placeholder button.
1941 NSRect buttonFrame =
1942 GetFirstButtonFrameForHeight([self menuHeightForButtonCount:1]);
1943 BookmarkButton* button = [self makeButtonForNode:nil
1945 [buttons_ addObject:button];
1946 [folderView_ addSubview:button];
1950 [self adjustWindowForButtonCount:buttonCount];
1952 if (animate && !ignoreAnimations_)
1953 NSShowAnimationEffect(NSAnimationEffectDisappearingItemDefault, poofPoint,
1954 NSZeroSize, nil, nil, nil);
1957 - (id<BookmarkButtonControllerProtocol>)controllerForNode:
1958 (const BookmarkNode*)node {
1959 // See if we are holding this node, otherwise see if it is in our
1960 // hierarchy of visible folder menus.
1961 if ([parentButton_ bookmarkNode] == node)
1963 return [folderController_ controllerForNode:node];
1966 #pragma mark TestingAPI Only
1968 - (BOOL)canScrollUp {
1969 return ![scrollUpArrowView_ isHidden];
1972 - (BOOL)canScrollDown {
1973 return ![scrollDownArrowView_ isHidden];
1976 - (CGFloat)verticalScrollArrowHeight {
1977 return verticalScrollArrowHeight_;
1980 - (NSView*)visibleView {
1981 return visibleView_;
1984 - (NSScrollView*)scrollView {
1988 - (NSView*)folderView {
1992 - (void)setIgnoreAnimations:(BOOL)ignore {
1993 ignoreAnimations_ = ignore;
1996 - (BookmarkButton*)buttonThatMouseIsIn {
1997 return buttonThatMouseIsIn_;
2000 @end // BookmarkBarFolderController