Add chrome to the repository.

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

1 files changed, 94 insertions, 0 deletions

diff --git a/chrome/browser/frame_view.h b/chrome/browser/frame_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_BROWSER_FRAME_VIEW_H__
+#define CHROME_BROWSER_FRAME_VIEW_H__
+
+#include <set>
+
+#include "chrome/views/view.h"
+
+class ChromeFrame;
+class OSExchangeData;
+
+// FrameView is the View that contains all the views of the ChromeFrame
+// (XPFrame or VistaFrame). FrameView forwards all drag and drop messages to
+// the TabStrip.
+class FrameView : public ChromeViews::View {
+ public:
+  explicit FrameView(ChromeFrame* frame);
+  virtual ~FrameView() {}
+
+  // Adds view to the set of views that drops are allowed to occur on. You only
+  // need invoke this for views whose y-coordinate extends above the tab strip
+  // and you want to allow drops on.
+  void AddViewToDropList(ChromeViews::View* view);
+
+ protected:
+  // As long as ShouldForwardToTabStrip returns true, drag and drop methods
+  // are forwarded to the tab strip.
+  virtual bool CanDrop(const OSExchangeData& data);
+  virtual void OnDragEntered(const ChromeViews::DropTargetEvent& event);
+  virtual int OnDragUpdated(const ChromeViews::DropTargetEvent& event);
+  virtual void OnDragExited();
+  virtual int OnPerformDrop(const ChromeViews::DropTargetEvent& event);
+
+  // Returns true if the event should be forwarded to the TabStrip. This returns
+  // true if y coordinate is less than the bottom of the tab strip, and is not
+  // over another child view.
+  virtual bool ShouldForwardToTabStrip(
+      const ChromeViews::DropTargetEvent& event);
+
+  // Overriden to remove views from dropable_views_.
+  virtual void ViewHierarchyChanged(bool is_add, View* parent, View* child);
+
+ private:
+  // Creates and returns a new DropTargetEvent in the coordinates of the
+  // TabStrip.
+  ChromeViews::DropTargetEvent* MapEventToTabStrip(
+      const ChromeViews::DropTargetEvent& event);
+
+  // The ChromeFrame we're the child of.
+  ChromeFrame* frame_;
+
+  // Initially set in CanDrop by invoking the same method on the TabStrip.
+  bool can_drop_;
+
+  // If true, drag and drop events are being forwarded to the tab strip.
+  // This is used to determine when to send OnDragExited and OnDragExited
+  // to the tab strip.
+  bool forwarding_to_tab_strip_;
+
+  // Set of additional views drops are allowed on. We do NOT own these.
+  std::set<ChromeViews::View*> dropable_views_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(FrameView);
+};
+
+#endif  // CHROME_BROWSER_FRAME_VIEW_H__