Mac: Change content settings from showing tabs on top to showing a list on the side.

chrome/browser/cocoa/tab_view_picker_table.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 "tab_view_picker_table.h"
+
+#include "base/logging.h"
+
+@implementation TabViewPickerTable
+
+- (id)initWithFrame:(NSRect)frame {
+  if ((self = [super initWithFrame:frame])) {
+    [self setDelegate:self];
+    [self setDataSource:self];
+  }
+  return self;
+}
+
+- (id)initWithCoder:(NSCoder*)coder {
+  if ((self = [super initWithCoder:coder])) {
+    [self setDelegate:self];
+    [self setDataSource:self];
+  }
+  return self;
+}
+
+- (void)awakeFromNib {
+  DCHECK(tabView_);
+  DCHECK_EQ([self delegate], self);
+  DCHECK_EQ([self dataSource], self);
+  DCHECK(![self allowsEmptySelection]);
+  DCHECK(![self allowsMultipleSelection]);
+
+  // Suppress the "Selection changed" message that's sent while the table is
+  // being built for the first time (this causes a selection change to index 0
+  // and back to the prior index).
+  id oldTabViewDelegate = [tabView_ delegate];
+  [tabView_ setDelegate:nil];
+
+  NSInteger index =
+      [tabView_ indexOfTabViewItem:[tabView_ selectedTabViewItem]];
+  [self reloadData];
+  [self selectRowIndexes:[NSIndexSet indexSetWithIndex:index]
+      byExtendingSelection:NO];
+
+  oldTabViewDelegate_ = oldTabViewDelegate;
+  [tabView_ setDelegate:self];
+}
+
+// Table view delegate method.
+- (void)tableViewSelectionDidChange:(NSNotification*)aNotification {
+  [tabView_ selectTabViewItemAtIndex:[self selectedRow]];
+}
+
+// Table view data source methods.
+- (NSInteger)numberOfRowsInTableView:(NSTableView*)tableView {
+  return [tabView_ numberOfTabViewItems];
+}
+
+- (id)              tableView:(NSTableView*)tableView
+    objectValueForTableColumn:(NSTableColumn*)tableColumn
+                          row:(NSInteger)rowIndex {
+  return [[tabView_ tabViewItemAtIndex:rowIndex] label];
+}
+
+// NSTabViewDelegate methods.
+- (void)         tabView:(NSTabView*)tabView
+    didSelectTabViewItem:(NSTabViewItem*)tabViewItem {
+  DCHECK_EQ(tabView_, tabView);
+  NSInteger index =
+      [tabView_ indexOfTabViewItem:[tabView_ selectedTabViewItem]];
+  [self selectRowIndexes:[NSIndexSet indexSetWithIndex:index]
+      byExtendingSelection:NO];
+  if ([oldTabViewDelegate_
+          respondsToSelector:@selector(tabView:didSelectTabViewItem:)]) {
+    [oldTabViewDelegate_ tabView:tabView didSelectTabViewItem:tabViewItem];
+  }
+}
+
+- (BOOL)            tabView:(NSTabView*)tabView
+    shouldSelectTabViewItem:(NSTabViewItem*)tabViewItem {
+  if ([oldTabViewDelegate_
+          respondsToSelector:@selector(tabView:shouldSelectTabViewItem:)]) {
+    return [oldTabViewDelegate_ tabView:tabView
+                shouldSelectTabViewItem:tabViewItem];
+  }
+  return YES;
+}
+
+- (void)          tabView:(NSTabView*)tabView
+    willSelectTabViewItem:(NSTabViewItem*)tabViewItem {
+  if ([oldTabViewDelegate_
+          respondsToSelector:@selector(tabView:willSelectTabViewItem:)]) {
+    [oldTabViewDelegate_ tabView:tabView willSelectTabViewItem:tabViewItem];
+  }
+}
+
+@end