[Mac] Draw the results label correctly in the findbar.

Adds common base classes (StyledTextField and StyledTextFieldCell) for both the find bar and omnibox text fields.

BUG=http://crbug.com/19550
TEST=Findbar results label should not be overdrawn by find text.
TEST=Autocomplete drawing (keyword, hint, lock icon) should not be affected.
Review URL: http://codereview.chromium.org/319005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@31186 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 29 insertions, 0 deletions

diff --git a/chrome/browser/cocoa/styled_text_field.h b/chrome/browser/cocoa/styled_text_field.h
new file mode 100644
index 0000000..68a65b7
--- /dev/null
+++ b/chrome/browser/cocoa/styled_text_field.h
@@ -0,0 +1,29 @@
+// Copyright (c) 2009 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 <Cocoa/Cocoa.h>
+
+@class StyledTextFieldCell;
+
+// An implementation of NSTextField that is designed to work with
+// StyledTextFieldCell.  Provides methods to redraw the field when cell
+// decorations have changed and overrides |mouseDown:| to properly handle clicks
+// in sections of the cell with decorations.
+@interface StyledTextField : NSTextField {
+}
+
+// Repositions and redraws the field editor.  Call this method when the cell's
+// text frame has changed (whenever changing cell decorations).
+- (void)resetFieldEditorFrameIfNeeded;
+
+// Returns the amount of the field's width which is not being taken up
+// by the text contents.  May be negative if the contents are large
+// enough to scroll.
+- (CGFloat)availableDecorationWidth;
+
+@end
+
+@interface StyledTextField (ExposedForTesting)
+- (StyledTextFieldCell*)styledTextFieldCell;
+@end