Add chrome to the repository.

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

1 files changed, 156 insertions, 0 deletions

diff --git a/chrome/views/native_button.h b/chrome/views/native_button.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_NATIVE_BUTTON_H__
+#define CHROME_VIEWS_NATIVE_BUTTON_H__
+
+#include <string>
+
+#include "base/gfx/size.h"
+#include "chrome/common/gfx/chrome_font.h"
+#include "chrome/views/native_control.h"
+
+namespace ChromeViews {
+
+
+class HWNDView;
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// NativeButton is a wrapper for a windows native button
+// TODO(beng): (Cleanup) this should derive also from some button-like base to
+//             get all the listenery-stuff for free and to work with
+//             AddManagedButton.
+//
+////////////////////////////////////////////////////////////////////////////////
+class NativeButton : public NativeControl {
+ public:
+  explicit NativeButton(const std::wstring& label);
+  NativeButton(const std::wstring& label, bool is_default);
+  virtual ~NativeButton();
+
+  virtual void GetPreferredSize(CSize *out);
+
+  void SetLabel(const std::wstring& l);
+  const std::wstring GetLabel() const;
+
+  class Listener {
+   public:
+    //
+    // This is invoked once the button is released.
+    virtual void ButtonPressed(NativeButton* sender) = 0;
+  };
+
+  //
+  // The the listener, the object that receives a notification when this
+  // button is pressed.
+  void SetListener(Listener* listener);
+
+  // Set the font used by this button.
+  void SetFont(const ChromeFont& font) { font_ = font; }
+
+  // Adds some internal padding to the button.  The |size| specified is applied
+  // on both sides of the button for each directions
+  void SetPadding(CSize size);
+
+  virtual LRESULT OnNotify(int w_param, LPNMHDR l_param);
+  virtual LRESULT OnCommand(UINT code, int id, HWND source);
+
+  // Invoked when the accelerator associated with the button is pressed.
+  virtual bool AcceleratorPressed(const Accelerator& accelerator);
+
+  // Sets the minimum size of the button from the specified size (in dialog
+  // units). If the width/height is non-zero, the preferred size of the button
+  // is max(preferred size of the content + padding, dlus converted to pixels).
+  //
+  // The default is 50, 14.
+  void SetMinSizeFromDLUs(const gfx::Size& dlu_size) {
+    min_dlu_size_ = dlu_size;
+  }
+
+  // Returns the MSAA role of the current view. The role is what assistive
+  // technologies (ATs) use to determine what behavior to expect from a given
+  // control.
+  bool GetAccessibleRole(VARIANT* role);
+
+  // Returns a brief, identifying string, containing a unique, readable name.
+  bool GetAccessibleName(std::wstring* name);
+
+  // Assigns an accessible string name.
+  void SetAccessibleName(const std::wstring& name);
+
+ protected:
+
+  virtual HWND CreateNativeControl(HWND parent_container);
+
+  // Sub-classes can call this method to cause the native button to reflect
+  // the current state
+  virtual void UpdateNativeButton();
+
+  // Sub-classes must override this method to properly configure the native
+  // button given the current state
+  virtual void ConfigureNativeButton(HWND hwnd);
+
+  // Overridden from NativeControl so we can activate the button when Enter is
+  // pressed.
+  virtual bool NotifyOnKeyDown() const;
+  virtual bool OnKeyDown(int virtual_key_code);
+
+ private:
+  NativeButton() {}
+
+  // Initializes the button. If |is_default| is true, this appears like the
+  // "default" button, and will register Enter as its keyboard accelerator.
+  void Init(const std::wstring& label, bool is_default);
+
+  void Clicked();
+
+  std::wstring label_;
+  ChromeFont font_;
+  Listener* listener_;
+
+  CSize padding_;
+
+  // True if the button should be rendered to appear like the "default" button
+  // in the containing dialog box. Default buttons register Enter as their
+  // accelerator.
+  bool is_default_;
+
+  // Minimum size, in dlus (see SetMinSizeFromDLUs).
+  gfx::Size min_dlu_size_;
+
+  // Storage of strings needed for accessibility.
+  std::wstring accessible_name_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(NativeButton);
+};
+
+}
+
+#endif  // CHROME_VIEWS_NATIVE_BUTTON_H__