Add chrome to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 122 insertions, 0 deletions

diff --git a/chrome/views/hwnd_view.h b/chrome/views/hwnd_view.h
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+++ b/chrome/views/hwnd_view.h
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CHROME_VIEWS_HWND_VIEW_H__
+#define CHROME_VIEWS_HWND_VIEW_H__
+
+#include <string>
+
+#include "chrome/views/view.h"
+
+namespace ChromeViews {
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// HWNDView class
+//
+//   The HWNDView class hosts a native window handle (HWND) sizing it
+//   according to the bounds of the view. This is useful whenever you need to
+//   show a UI control that has a HWND (e.g. a native windows Edit control)
+//   within thew View hierarchy and benefit from the sizing/layout.
+//
+/////////////////////////////////////////////////////////////////////////////
+class HWNDView : public View {
+ public:
+  HWNDView();
+  virtual ~HWNDView();
+
+  virtual void GetPreferredSize(CSize *out);
+
+  void SetPreferredSize(const CSize& size);
+
+  // Attach a window handle to this View, making the window it represents
+  // subject to sizing according to this View's parent container's Layout
+  // Manager's sizing heuristics.
+  void Attach(HWND hwnd);
+
+  // Detach the attached window handle. It will no longer be updated
+  void Detach();
+
+  virtual void DidChangeBounds(const CRect& previous, const CRect& current);
+  virtual void VisibilityChanged(View* starting_from, bool is_visible);
+
+  HWND GetHWND() const;
+
+  // Resize the hosted HWND to the bounds of this View.
+  void UpdateHWNDBounds();
+
+  virtual void Paint(ChromeCanvas* canvas);
+
+  // Overridden from View.
+  virtual std::string GetClassName() const;
+
+  // A HWNDView has an associated focus View so that the focus of the native
+  // control and of the View are kept in sync. In simple cases where the
+  // HWNDView directly wraps a native window as is, the associated view is this
+  // View. In other cases where the HWNDView is part of another view (such as
+  // TextField), the actual View is not the HWNDView and this method must be
+  // called to set that.
+  // This method must be called before Attach().
+  void SetAssociatedFocusView(View* view);
+
+  void set_fast_resize(bool fast_resize) { fast_resize_ = fast_resize; }
+
+ protected:
+  virtual void ViewHierarchyChanged(bool is_add, View *parent, View *child);
+
+  // Notification that our visible bounds relative to the root has changed.
+  // This updates the bounds of the HWND.
+  virtual void VisibleBoundsInRootChanged();
+
+ private:
+  // The hosted window handle.
+  HWND hwnd_;
+
+  // The preferred size of this View
+  CSize preferred_size_;
+
+  // Have we installed a region on the HWND used to clip to only the visible
+  // portion of the HWND?
+  bool installed_clip_;
+
+  // Fast resizing will move the hwnd and clip its window region, this will
+  // result in white areas and will not resize the content (so scrollbars
+  // will be all wrong and content will flow offscreen). Only use this
+  // when you're doing extremely quick, high-framerate vertical resizes
+  // and don't care about accuracy. Make sure you do a real resize at the
+  // end. USE WITH CAUTION.
+  bool fast_resize_;
+
+  // The view that should be given focus when this HWNDView is focused.
+  View* focus_view_;
+};
+
+}
+
+#endif // CHROME_VIEWS_HWND_VIEW_H__