Move TranslateInfoBarUtilities to a common place so that other infobars may reuse these helpers

chrome/browser/ui/cocoa/infobars/infobar_utilities.mm

+// Copyright (c) 2012 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/infobars/infobar_utilities.h"
+
+#include "base/memory/scoped_nsobject.h"
+#import "chrome/browser/ui/cocoa/infobars/infobar_container_controller.h"
+#import "chrome/browser/ui/cocoa/infobars/infobar_gradient_view.h"
+
+namespace InfoBarUtilities {
+
+// Move the |toMove| view |spacing| pixels before/after the |anchor| view.
+// |after| signifies the side of |anchor| on which to place |toMove|.
+void MoveControl(NSView* anchor, NSView* toMove, int spacing, bool after) {
+  NSRect anchorFrame = [anchor frame];
+  NSRect toMoveFrame = [toMove frame];
+
+  // At the time of this writing, OS X doesn't natively support BiDi UIs, but
+  // it doesn't hurt to be forward looking.
+  bool toRight = after;
+
+  if (toRight) {
+    toMoveFrame.origin.x = NSMaxX(anchorFrame) + spacing;
+  } else {
+    // Place toMove to theleft of anchor.
+    toMoveFrame.origin.x = NSMinX(anchorFrame) -
+        spacing - NSWidth(toMoveFrame);
+  }
+  [toMove setFrame:toMoveFrame];
+}
+
+// Check that the control |before| is ordered visually before the |after|
+// control. Also, check that there is space between them.
+bool VerifyControlOrderAndSpacing(id before, id after) {
+  NSRect beforeFrame = [before frame];
+  NSRect afterFrame = [after frame];
+  return NSMinX(afterFrame) >= NSMaxX(beforeFrame);
+}
+
+// Vertically center |toMove| in its container.
+void VerticallyCenterView(NSView* toMove) {
+  NSRect superViewFrame = [[toMove superview] frame];
+  NSRect viewFrame = [toMove frame];
+  // If the superview is the infobar view, then subtract out the anti-spoof
+  // height so that the content is centered in the content area of the infobar,
+  // rather than in the total height (which includes the bulge).
+  CGFloat superHeight = NSHeight(superViewFrame);
+  if ([[toMove superview] isKindOfClass:[InfoBarGradientView class]])
+    superHeight = infobars::kBaseHeight;
+  viewFrame.origin.y =
+      floor((superHeight - NSHeight(viewFrame)) / 2.0);
+  [toMove setFrame:viewFrame];
+}
+
+// Creates a label control in the style we need for the infobar's labels
+// within |bounds|.
+NSTextField* CreateLabel(NSRect bounds) {
+  NSTextField* ret = [[NSTextField alloc] initWithFrame:bounds];
+  [ret setEditable:NO];
+  [ret setDrawsBackground:NO];
+  [ret setBordered:NO];
+  return ret;
+}
+
+// Adds an item with the specified properties to |menu|.
+void AddMenuItem(NSMenu *menu, id target, SEL selector, NSString* title,
+    int tag, bool enabled, bool checked) {
+  if (tag == -1) {
+    [menu addItem:[NSMenuItem separatorItem]];
+  } else {
+    scoped_nsobject<NSMenuItem> item([[NSMenuItem alloc]
+      initWithTitle:title
+             action:selector
+      keyEquivalent:@""]);
+    [item setTag:tag];
+    [menu addItem:item];
+    [item setTarget:target];
+    if (checked)
+      [item setState:NSOnState];
+    if (!enabled)
+      [item setEnabled:NO];
+  }
+}
+
+}  // namespace InfoBarUtilities