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

chrome/browser/ui/cocoa/tab_window_controller.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_window_controller.h"
-
-#include "app/theme_provider.h"
-#include "base/logging.h"
-#import "chrome/browser/ui/cocoa/focus_tracker.h"
-#import "chrome/browser/ui/cocoa/tab_strip_view.h"
-#import "chrome/browser/ui/cocoa/themed_window.h"
-
-@interface TabWindowController(PRIVATE)
-- (void)setUseOverlay:(BOOL)useOverlay;
-@end
-
-@interface TabWindowOverlayWindow : NSWindow
-@end
-
-@implementation TabWindowOverlayWindow
-
-- (ThemeProvider*)themeProvider {
-  if ([self parentWindow])
-    return [[[self parentWindow] windowController] themeProvider];
-  return NULL;
-}
-
-- (ThemedWindowStyle)themedWindowStyle {
-  if ([self parentWindow])
-    return [[[self parentWindow] windowController] themedWindowStyle];
-  return NO;
-}
-
-- (NSPoint)themePatternPhase {
-  if ([self parentWindow])
-    return [[[self parentWindow] windowController] themePatternPhase];
-  return NSZeroPoint;
-}
-
-@end
-
-@implementation TabWindowController
-@synthesize tabContentArea = tabContentArea_;
-
-- (id)initWithWindow:(NSWindow*)window {
-  if ((self = [super initWithWindow:window]) != nil) {
-    lockedTabs_.reset([[NSMutableSet alloc] initWithCapacity:10]);
-  }
-  return self;
-}
-
-// Add the side tab strip to the left side of the window's content area,
-// making it fill the full height of the content area.
-- (void)addSideTabStripToWindow {
-  NSView* contentView = [[self window] contentView];
-  NSRect contentFrame = [contentView frame];
-  NSRect sideStripFrame =
-      NSMakeRect(0, 0,
-                 NSWidth([sideTabStripView_ frame]),
-                 NSHeight(contentFrame));
-  [sideTabStripView_ setFrame:sideStripFrame];
-  [contentView addSubview:sideTabStripView_];
-}
-
-// Add the top tab strop to the window, above the content box and add it to the
-// view hierarchy as a sibling of the content view so it can overlap with the
-// window frame.
-- (void)addTopTabStripToWindow {
-  NSRect contentFrame = [tabContentArea_ frame];
-  NSRect tabFrame =
-      NSMakeRect(0, NSMaxY(contentFrame),
-                 NSWidth(contentFrame),
-                 NSHeight([topTabStripView_ frame]));
-  [topTabStripView_ setFrame:tabFrame];
-  NSView* contentParent = [[[self window] contentView] superview];
-  [contentParent addSubview:topTabStripView_];
-}
-
-- (void)windowDidLoad {
-  // Cache the difference in height between the window content area and the
-  // tab content area.
-  NSRect tabFrame = [tabContentArea_ frame];
-  NSRect contentFrame = [[[self window] contentView] frame];
-  contentAreaHeightDelta_ = NSHeight(contentFrame) - NSHeight(tabFrame);
-
-  if ([self hasTabStrip]) {
-    if ([self useVerticalTabs]) {
-      // No top tabstrip so remove the tabContentArea offset.
-      tabFrame.size.height = contentFrame.size.height;
-      [tabContentArea_ setFrame:tabFrame];
-      [self addSideTabStripToWindow];
-    } else {
-      [self addTopTabStripToWindow];
-    }
-  } else {
-    // No top tabstrip so remove the tabContentArea offset.
-    tabFrame.size.height = contentFrame.size.height;
-    [tabContentArea_ setFrame:tabFrame];
-  }
-}
-
-// Toggles from one display mode of the tab strip to another. Will automatically
-// call -layoutSubviews to reposition other content.
-- (void)toggleTabStripDisplayMode {
-  // Adjust the size of the tab contents to either use more or less space,
-  // depending on the direction of the toggle. This needs to be done prior to
-  // adding back in the top tab strip as its position is based off the MaxY
-  // of the tab content area.
-  BOOL useVertical = [self useVerticalTabs];
-  NSRect tabContentsFrame = [tabContentArea_ frame];
-  tabContentsFrame.size.height += useVertical ?
-      contentAreaHeightDelta_ : -contentAreaHeightDelta_;
-  [tabContentArea_ setFrame:tabContentsFrame];
-
-  if (useVertical) {
-    // Remove the top tab strip and add the sidebar in.
-    [topTabStripView_ removeFromSuperview];
-    [self addSideTabStripToWindow];
-  } else {
-    // Remove the side tab strip and add the top tab strip as a sibling of the
-    // window's content area.
-    [sideTabStripView_ removeFromSuperview];
-    NSRect tabContentsFrame = [tabContentArea_ frame];
-    tabContentsFrame.size.height -= contentAreaHeightDelta_;
-    [tabContentArea_ setFrame:tabContentsFrame];
-    [self addTopTabStripToWindow];
-  }
-
-  [self layoutSubviews];
-}
-
-// Return the appropriate tab strip based on whether or not side tabs are
-// enabled.
-- (TabStripView*)tabStripView {
-  if ([self useVerticalTabs])
-    return sideTabStripView_;
-  return topTabStripView_;
-}
-
-- (void)removeOverlay {
-  [self setUseOverlay:NO];
-  if (closeDeferred_) {
-    // See comment in BrowserWindowCocoa::Close() about orderOut:.
-    [[self window] orderOut:self];
-    [[self window] performClose:self];  // Autoreleases the controller.
-  }
-}
-
-- (void)showOverlay {
-  [self setUseOverlay:YES];
-}
-
-// if |useOverlay| is true, we're moving views into the overlay's content
-// area. If false, we're moving out of the overlay back into the window's
-// content.
-- (void)moveViewsBetweenWindowAndOverlay:(BOOL)useOverlay {
-  if (useOverlay) {
-    [[[overlayWindow_ contentView] superview] addSubview:[self tabStripView]];
-    // Add the original window's content view as a subview of the overlay
-    // window's content view.  We cannot simply use setContentView: here because
-    // the overlay window has a different content size (due to it being
-    // borderless).
-    [[overlayWindow_ contentView] addSubview:cachedContentView_];
-  } else {
-    [[self window] setContentView:cachedContentView_];
-    // The TabStripView always needs to be in front of the window's content
-    // view and therefore it should always be added after the content view is
-    // set.
-    [[[[self window] contentView] superview] addSubview:[self tabStripView]];
-    [[[[self window] contentView] superview] updateTrackingAreas];
-  }
-}
-
-// If |useOverlay| is YES, creates a new overlay window and puts the tab strip
-// and the content area inside of it. This allows it to have a different opacity
-// from the title bar. If NO, returns everything to the previous state and
-// destroys the overlay window until it's needed again. The tab strip and window
-// contents are returned to the original window.
-- (void)setUseOverlay:(BOOL)useOverlay {
-  [NSObject cancelPreviousPerformRequestsWithTarget:self
-                                           selector:@selector(removeOverlay)
-                                             object:nil];
-  NSWindow* window = [self window];
-  if (useOverlay && !overlayWindow_) {
-    DCHECK(!cachedContentView_);
-    overlayWindow_ = [[TabWindowOverlayWindow alloc]
-                         initWithContentRect:[window frame]
-                                   styleMask:NSBorderlessWindowMask
-                                     backing:NSBackingStoreBuffered
-                                       defer:YES];
-    [overlayWindow_ setTitle:@"overlay"];
-    [overlayWindow_ setBackgroundColor:[NSColor clearColor]];
-    [overlayWindow_ setOpaque:NO];
-    [overlayWindow_ setDelegate:self];
-    cachedContentView_ = [window contentView];
-    [window addChildWindow:overlayWindow_ ordered:NSWindowAbove];
-    // Sets explictly nil to the responder and then restores it.
-    // Leaving the first responder non-null here
-    // causes [RenderWidgethostViewCocoa resignFirstResponder] and
-    // following RenderWidgetHost::Blur(), which results unexpected
-    // focus lost.
-    focusBeforeOverlay_.reset([[FocusTracker alloc] initWithWindow:window]);
-    [window makeFirstResponder:nil];
-    [self moveViewsBetweenWindowAndOverlay:useOverlay];
-    [overlayWindow_ orderFront:nil];
-  } else if (!useOverlay && overlayWindow_) {
-    DCHECK(cachedContentView_);
-    [window setContentView:cachedContentView_];
-    [self moveViewsBetweenWindowAndOverlay:useOverlay];
-    [focusBeforeOverlay_ restoreFocusInWindow:window];
-    focusBeforeOverlay_.reset(nil);
-    [window display];
-    [window removeChildWindow:overlayWindow_];
-    [overlayWindow_ orderOut:nil];
-    [overlayWindow_ release];
-    overlayWindow_ = nil;
-    cachedContentView_ = nil;
-  } else {
-    NOTREACHED();
-  }
-}
-
-- (NSWindow*)overlayWindow {
-  return overlayWindow_;
-}
-
-- (BOOL)shouldConstrainFrameRect {
-  // If we currently have an overlay window, do not attempt to change the
-  // window's size, as our overlay window doesn't know how to resize properly.
-  return overlayWindow_ == nil;
-}
-
-- (BOOL)canReceiveFrom:(TabWindowController*)source {
-  // subclass must implement
-  NOTIMPLEMENTED();
-  return NO;
-}
-
-- (void)moveTabView:(NSView*)view
-     fromController:(TabWindowController*)dragController {
-  NOTIMPLEMENTED();
-}
-
-- (NSView*)selectedTabView {
-  NOTIMPLEMENTED();
-  return nil;
-}
-
-- (void)layoutTabs {
-  // subclass must implement
-  NOTIMPLEMENTED();
-}
-
-- (TabWindowController*)detachTabToNewWindow:(TabView*)tabView {
-  // subclass must implement
-  NOTIMPLEMENTED();
-  return NULL;
-}
-
-- (void)insertPlaceholderForTab:(TabView*)tab
-                          frame:(NSRect)frame
-                  yStretchiness:(CGFloat)yStretchiness {
-  [self showNewTabButton:NO];
-}
-
-- (void)removePlaceholder {
-  [self showNewTabButton:YES];
-}
-
-- (BOOL)isDragSessionActive {
-  NOTIMPLEMENTED();
-  return NO;
-}
-
-- (BOOL)tabDraggingAllowed {
-  return YES;
-}
-
-- (BOOL)tabTearingAllowed {
-  return YES;
-}
-
-- (BOOL)windowMovementAllowed {
-  return YES;
-}
-
-- (BOOL)isTabFullyVisible:(TabView*)tab {
-  // Subclasses should implement this, but it's not necessary.
-  return YES;
-}
-
-- (void)showNewTabButton:(BOOL)show {
-  // subclass must implement
-  NOTIMPLEMENTED();
-}
-
-- (void)detachTabView:(NSView*)view {
-  // subclass must implement
-  NOTIMPLEMENTED();
-}
-
-- (NSInteger)numberOfTabs {
-  // subclass must implement
-  NOTIMPLEMENTED();
-  return 0;
-}
-
-- (BOOL)hasLiveTabs {
-  // subclass must implement
-  NOTIMPLEMENTED();
-  return NO;
-}
-
-- (NSString*)selectedTabTitle {
-  // subclass must implement
-  NOTIMPLEMENTED();
-  return @"";
-}
-
-- (BOOL)hasTabStrip {
-  // Subclasses should implement this.
-  NOTIMPLEMENTED();
-  return YES;
-}
-
-- (BOOL)useVerticalTabs {
-  // Subclasses should implement this.
-  NOTIMPLEMENTED();
-  return NO;
-}
-
-- (BOOL)isTabDraggable:(NSView*)tabView {
-  return ![lockedTabs_ containsObject:tabView];
-}
-
-- (void)setTab:(NSView*)tabView isDraggable:(BOOL)draggable {
-  if (draggable)
-    [lockedTabs_ removeObject:tabView];
-  else
-    [lockedTabs_ addObject:tabView];
-}
-
-// Tell the window that it needs to call performClose: as soon as the current
-// drag is complete. This prevents a window (and its overlay) from going away
-// during a drag.
-- (void)deferPerformClose {
-  closeDeferred_ = YES;
-}
-
-// Called when the size of the window content area has changed. Override to
-// position specific views. Base class implementation does nothing.
-- (void)layoutSubviews {
-  NOTIMPLEMENTED();
-}
-
-@end