Subclassing the InfoBubble to handle anchoring bubbles basedon their content, not what they point to, like the one we wantto show for the extension apps.

BUG=41270
TEST=Run Chrome with --enable-extension-apps --app-launcher-new-tab and press the NewTab button. A panel should open that has a mini omnibox which should be situated right on top of the underlying omnibox.
Review URL: http://codereview.chromium.org/1572045

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@44979 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 89 insertions, 0 deletions

diff --git a/chrome/browser/views/pinned_contents_info_bubble.h b/chrome/browser/views/pinned_contents_info_bubble.h
new file mode 100644
index 0000000..92477c0
--- /dev/null
+++ b/chrome/browser/views/pinned_contents_info_bubble.h
@@ -0,0 +1,89 @@
+// 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.
+
+#ifndef CHROME_BROWSER_VIEWS_PINNED_CONTENTS_INFO_BUBBLE_H_
+#define CHROME_BROWSER_VIEWS_PINNED_CONTENTS_INFO_BUBBLE_H_
+
+#include "chrome/browser/views/info_bubble.h"
+
+// This is a specialization of BorderContents, used to draw a border around
+// an InfoBubble that has its contents pinned to a specific location. See
+// base class for details.
+class PinnedContentsBorderContents : public BorderContents {
+ public:
+  explicit PinnedContentsBorderContents(const gfx::Point& bubble_anchor)
+      : bubble_anchor_(bubble_anchor) {}
+
+  // BorderContents overrides:
+  virtual void InitAndGetBounds(
+      const gfx::Rect& position_relative_to,  // In screen coordinates
+      const gfx::Size& contents_size,
+      bool prefer_arrow_on_right,
+      gfx::Rect* contents_bounds,             // Returned in window coordinates
+      gfx::Rect* window_bounds);              // Returned in screen coordinates
+
+ private:
+  // The location of the pinned contents (in screen coordinates).
+  const gfx::Point bubble_anchor_;
+
+  DISALLOW_COPY_AND_ASSIGN(PinnedContentsBorderContents);
+};
+
+#if defined(OS_WIN)
+// The window that surrounds the info bubble. See base class for details.
+class PinnedContentsBorderWidget : public BorderWidget {
+ public:
+  explicit PinnedContentsBorderWidget(const gfx::Point& bubble_anchor)
+     : bubble_anchor_(bubble_anchor) {}
+  virtual ~PinnedContentsBorderWidget() {}
+
+  // BorderWidget overrides:
+  virtual gfx::Rect InitAndGetBounds(HWND owner,
+                                     const gfx::Rect& position_relative_to,
+                                     const gfx::Size& contents_size,
+                                     bool is_rtl);
+
+ private:
+  // The location of the pinned contents (in screen coordinates).
+  const gfx::Point bubble_anchor_;
+
+  DISALLOW_COPY_AND_ASSIGN(PinnedContentsBorderWidget);
+};
+#endif
+
+// A specialization of the InfoBubble. Used to draw an InfoBubble which, in
+// addition to having an arrow pointing to where the user clicked, also shifts
+// the bubble horizontally to fix it to a specific location. See base class
+// for details.
+class PinnedContentsInfoBubble : public InfoBubble {
+ public:
+  // Shows the InfoBubble (see base class function for details).
+  // |bubble_anchor| specifies how far horizontally to shift the bubble in
+  // order to anchor its contents. Once the InfoBubble has been anchored its
+  // arrow may be pointing to a slightly different |y| location than specified
+  // in |position_relative_to|.
+  static PinnedContentsInfoBubble* Show(views::Window* parent,
+                                        const gfx::Rect& position_relative_to,
+                                        const gfx::Point& bubble_anchor_,
+                                        views::View* contents,
+                                        InfoBubbleDelegate* delegate);
+
+ private:
+  explicit PinnedContentsInfoBubble(const gfx::Point& bubble_anchor)
+      : bubble_anchor_(bubble_anchor) {}
+  virtual ~PinnedContentsInfoBubble() {}
+
+  // InfoBubble overrides:
+  virtual void Init(views::Window* parent,
+                    const gfx::Rect& position_relative_to,
+                    views::View* contents,
+                    InfoBubbleDelegate* delegate);
+
+  // The location of the pinned contents (in screen coordinates).
+  const gfx::Point bubble_anchor_;
+
+  DISALLOW_COPY_AND_ASSIGN(PinnedContentsInfoBubble);
+};
+
+#endif  // CHROME_BROWSER_VIEWS_PINNED_CONTENTS_INFO_BUBBLE_H_