[Mac] Organize all tab/tab strip files into chrome/browser/ui/cocoa/tabs/....

chrome/browser/ui/cocoa/tab_strip_view.mm

-// 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/tab_strip_view.h"
-
-#include "base/logging.h"
-#include "base/mac/mac_util.h"
-#include "chrome/browser/themes/browser_theme_provider.h"
-#import "chrome/browser/ui/cocoa/browser_window_controller.h"
-#import "chrome/browser/ui/cocoa/tab_strip_controller.h"
-#import "chrome/browser/ui/cocoa/view_id_util.h"
-
-@implementation TabStripView
-
-@synthesize newTabButton = newTabButton_;
-@synthesize dropArrowShown = dropArrowShown_;
-@synthesize dropArrowPosition = dropArrowPosition_;
-
-- (id)initWithFrame:(NSRect)frame {
-  self = [super initWithFrame:frame];
-  if (self) {
-    // Set lastMouseUp_ = -1000.0 so that timestamp-lastMouseUp_ is big unless
-    // lastMouseUp_ has been reset.
-    lastMouseUp_ = -1000.0;
-
-    // Register to be an URL drop target.
-    dropHandler_.reset([[URLDropTargetHandler alloc] initWithView:self]);
-  }
-  return self;
-}
-
-// Draw bottom border (a dark border and light highlight). Each tab is
-// responsible for mimicking this bottom border, unless it's the selected
-// tab.
-- (void)drawBorder:(NSRect)bounds {
-  NSRect borderRect, contentRect;
-
-  borderRect = bounds;
-  borderRect.origin.y = 1;
-  borderRect.size.height = 1;
-  [[NSColor colorWithCalibratedWhite:0.0 alpha:0.2] set];
-  NSRectFillUsingOperation(borderRect, NSCompositeSourceOver);
-  NSDivideRect(bounds, &borderRect, &contentRect, 1, NSMinYEdge);
-
-  BrowserThemeProvider* themeProvider =
-      static_cast<BrowserThemeProvider*>([[self window] themeProvider]);
-  if (!themeProvider)
-    return;
-
-  NSColor* bezelColor = themeProvider->GetNSColor(
-      themeProvider->UsingDefaultTheme() ?
-          BrowserThemeProvider::COLOR_TOOLBAR_BEZEL :
-          BrowserThemeProvider::COLOR_TOOLBAR, true);
-  [bezelColor set];
-  NSRectFill(borderRect);
-  NSRectFillUsingOperation(borderRect, NSCompositeSourceOver);
-}
-
-- (void)drawRect:(NSRect)rect {
-  NSRect boundsRect = [self bounds];
-
-  [self drawBorder:boundsRect];
-
-  // Draw drop-indicator arrow (if appropriate).
-  // TODO(viettrungluu): this is all a stop-gap measure.
-  if ([self dropArrowShown]) {
-    // Programmer art: an arrow parametrized by many knobs. Note that the arrow
-    // points downwards (so understand "width" and "height" accordingly).
-
-    // How many (pixels) to inset on the top/bottom.
-    const CGFloat kArrowTopInset = 1.5;
-    const CGFloat kArrowBottomInset = 1;
-
-    // What proportion of the vertical space is dedicated to the arrow tip,
-    // i.e., (arrow tip height)/(amount of vertical space).
-    const CGFloat kArrowTipProportion = 0.5;
-
-    // This is a slope, i.e., (arrow tip height)/(0.5 * arrow tip width).
-    const CGFloat kArrowTipSlope = 1.2;
-
-    // What proportion of the arrow tip width is the stem, i.e., (stem
-    // width)/(arrow tip width).
-    const CGFloat kArrowStemProportion = 0.33;
-
-    NSPoint arrowTipPos = [self dropArrowPosition];
-    arrowTipPos.y += kArrowBottomInset;  // Inset on the bottom.
-
-    // Height we have to work with (insetting on the top).
-    CGFloat availableHeight =
-        NSMaxY(boundsRect) - arrowTipPos.y - kArrowTopInset;
-    DCHECK(availableHeight >= 5);
-
-    // Based on the knobs above, calculate actual dimensions which we'll need
-    // for drawing.
-    CGFloat arrowTipHeight = kArrowTipProportion * availableHeight;
-    CGFloat arrowTipWidth = 2 * arrowTipHeight / kArrowTipSlope;
-    CGFloat arrowStemHeight = availableHeight - arrowTipHeight;
-    CGFloat arrowStemWidth = kArrowStemProportion * arrowTipWidth;
-    CGFloat arrowStemInset = (arrowTipWidth - arrowStemWidth) / 2;
-
-    // The line width is arbitrary, but our path really should be mitered.
-    NSBezierPath* arrow = [NSBezierPath bezierPath];
-    [arrow setLineJoinStyle:NSMiterLineJoinStyle];
-    [arrow setLineWidth:1];
-
-    // Define the arrow's shape! We start from the tip and go clockwise.
-    [arrow moveToPoint:arrowTipPos];
-    [arrow relativeLineToPoint:NSMakePoint(-arrowTipWidth / 2, arrowTipHeight)];
-    [arrow relativeLineToPoint:NSMakePoint(arrowStemInset, 0)];
-    [arrow relativeLineToPoint:NSMakePoint(0, arrowStemHeight)];
-    [arrow relativeLineToPoint:NSMakePoint(arrowStemWidth, 0)];
-    [arrow relativeLineToPoint:NSMakePoint(0, -arrowStemHeight)];
-    [arrow relativeLineToPoint:NSMakePoint(arrowStemInset, 0)];
-    [arrow closePath];
-
-    // Draw and fill the arrow.
-    [[NSColor colorWithCalibratedWhite:0 alpha:0.67] set];
-    [arrow stroke];
-    [[NSColor colorWithCalibratedWhite:1 alpha:0.67] setFill];
-    [arrow fill];
-  }
-}
-
-// YES if a double-click in the background of the tab strip minimizes the
-// window.
-- (BOOL)doubleClickMinimizesWindow {
-  return YES;
-}
-
-// We accept first mouse so clicks onto close/zoom/miniaturize buttons and
-// title bar double-clicks are properly detected even when the window is in the
-// background.
-- (BOOL)acceptsFirstMouse:(NSEvent*)event {
-  return YES;
-}
-
-// Trap double-clicks and make them miniaturize the browser window.
-- (void)mouseUp:(NSEvent*)event {
-  // Bail early if double-clicks are disabled.
-  if (![self doubleClickMinimizesWindow]) {
-    [super mouseUp:event];
-    return;
-  }
-
-  NSInteger clickCount = [event clickCount];
-  NSTimeInterval timestamp = [event timestamp];
-
-  // Double-clicks on Zoom/Close/Mininiaturize buttons shouldn't cause
-  // miniaturization. For those, we miss the first click but get the second
-  // (with clickCount == 2!). We thus check that we got a first click shortly
-  // before (measured up-to-up) a double-click. Cocoa doesn't have a documented
-  // way of getting the proper interval (= (double-click-threshold) +
-  // (drag-threshold); the former is Carbon GetDblTime()/60.0 or
-  // com.apple.mouse.doubleClickThreshold [undocumented]). So we hard-code
-  // "short" as 0.8 seconds. (Measuring up-to-up isn't enough to properly
-  // detect double-clicks, but we're actually using Cocoa for that.)
-  if (clickCount == 2 && (timestamp - lastMouseUp_) < 0.8) {
-    if (base::mac::ShouldWindowsMiniaturizeOnDoubleClick())
-      [[self window] performMiniaturize:self];
-  } else {
-    [super mouseUp:event];
-  }
-
-  // If clickCount is 0, the drag threshold was passed.
-  lastMouseUp_ = (clickCount == 1) ? timestamp : -1000.0;
-}
-
-// (URLDropTarget protocol)
-- (id<URLDropTargetController>)urlDropController {
-  BrowserWindowController* windowController = [[self window] windowController];
-  DCHECK([windowController isKindOfClass:[BrowserWindowController class]]);
-  return [windowController tabStripController];
-}
-
-// (URLDropTarget protocol)
-- (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)sender {
-  return [dropHandler_ draggingEntered:sender];
-}
-
-// (URLDropTarget protocol)
-- (NSDragOperation)draggingUpdated:(id<NSDraggingInfo>)sender {
-  return [dropHandler_ draggingUpdated:sender];
-}
-
-// (URLDropTarget protocol)
-- (void)draggingExited:(id<NSDraggingInfo>)sender {
-  return [dropHandler_ draggingExited:sender];
-}
-
-// (URLDropTarget protocol)
-- (BOOL)performDragOperation:(id<NSDraggingInfo>)sender {
-  return [dropHandler_ performDragOperation:sender];
-}
-
-- (BOOL)accessibilityIsIgnored {
-  return NO;
-}
-
-- (id)accessibilityAttributeValue:(NSString*)attribute {
-  if ([attribute isEqual:NSAccessibilityRoleAttribute])
-    return NSAccessibilityGroupRole;
-
-  return [super accessibilityAttributeValue:attribute];
-}
-
-- (ViewID)viewID {
-  return VIEW_ID_TAB_STRIP;
-}
-
-@end