Index: base/window_impl.cc |
=================================================================== |
--- base/window_impl.cc (revision 28672) |
+++ base/window_impl.cc (working copy) |
@@ -1,213 +0,0 @@ |
-// 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. |
- |
-#include <list> |
- |
-#include "base/singleton.h" |
-#include "base/string_util.h" |
-#include "base/window_impl.h" |
-#include "base/win_util.h" |
- |
-namespace base { |
- |
-static const DWORD kWindowDefaultChildStyle = |
- WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS; |
-static const DWORD kWindowDefaultStyle = WS_OVERLAPPEDWINDOW; |
-static const DWORD kWindowDefaultExStyle = 0; |
- |
-/////////////////////////////////////////////////////////////////////////////// |
-// WindowImpl class tracking. |
- |
-// static |
-const wchar_t* const WindowImpl::kBaseClassName = L"Chrome_WindowImpl_"; |
- |
-// WindowImpl class information used for registering unique windows. |
-struct ClassInfo { |
- UINT style; |
- HBRUSH background; |
- |
- explicit ClassInfo(int style) |
- : style(style), |
- background(NULL) {} |
- |
- // Compares two ClassInfos. Returns true if all members match. |
- bool Equals(const ClassInfo& other) const { |
- return (other.style == style && other.background == background); |
- } |
-}; |
- |
-class ClassRegistrar { |
- public: |
- ~ClassRegistrar() { |
- for (RegisteredClasses::iterator i = registered_classes_.begin(); |
- i != registered_classes_.end(); ++i) { |
- UnregisterClass(i->name.c_str(), NULL); |
- } |
- } |
- |
- // Puts the name for the class matching |class_info| in |class_name|, creating |
- // a new name if the class is not yet known. |
- // Returns true if this class was already known, false otherwise. |
- bool RetrieveClassName(const ClassInfo& class_info, std::wstring* name) { |
- for (RegisteredClasses::const_iterator i = registered_classes_.begin(); |
- i != registered_classes_.end(); ++i) { |
- if (class_info.Equals(i->info)) { |
- name->assign(i->name); |
- return true; |
- } |
- } |
- |
- name->assign(std::wstring(WindowImpl::kBaseClassName) + |
- IntToWString(registered_count_++)); |
- return false; |
- } |
- |
- void RegisterClass(const ClassInfo& class_info, |
- const std::wstring& name, |
- ATOM atom) { |
- registered_classes_.push_back(RegisteredClass(class_info, name, atom)); |
- } |
- |
- private: |
- // Represents a registered window class. |
- struct RegisteredClass { |
- RegisteredClass(const ClassInfo& info, |
- const std::wstring& name, |
- ATOM atom) |
- : info(info), |
- name(name), |
- atom(atom) { |
- } |
- |
- // Info used to create the class. |
- ClassInfo info; |
- |
- // The name given to the window. |
- std::wstring name; |
- |
- // The ATOM returned from creating the window. |
- ATOM atom; |
- }; |
- |
- ClassRegistrar() : registered_count_(0) { } |
- friend struct DefaultSingletonTraits<ClassRegistrar>; |
- |
- typedef std::list<RegisteredClass> RegisteredClasses; |
- RegisteredClasses registered_classes_; |
- |
- // Counter of how many classes have been registered so far. |
- int registered_count_; |
- |
- DISALLOW_COPY_AND_ASSIGN(ClassRegistrar); |
-}; |
- |
-/////////////////////////////////////////////////////////////////////////////// |
-// WindowImpl, public |
- |
-WindowImpl::WindowImpl() |
- : window_style_(0), |
- window_ex_style_(kWindowDefaultExStyle), |
- class_style_(CS_DBLCLKS), |
- hwnd_(NULL) { |
-} |
- |
-WindowImpl::~WindowImpl() { |
-} |
- |
-void WindowImpl::Init(HWND parent, const gfx::Rect& bounds) { |
- if (window_style_ == 0) |
- window_style_ = parent ? kWindowDefaultChildStyle : kWindowDefaultStyle; |
- |
- // Ensures the parent we have been passed is valid, otherwise CreateWindowEx |
- // will fail. |
- if (parent && !::IsWindow(parent)) { |
- NOTREACHED() << "invalid parent window specified."; |
- parent = NULL; |
- } |
- |
- int x, y, width, height; |
- if (bounds.IsEmpty()) { |
- x = y = width = height = CW_USEDEFAULT; |
- } else { |
- x = bounds.x(); |
- y = bounds.y(); |
- width = bounds.width(); |
- height = bounds.height(); |
- } |
- |
- hwnd_ = CreateWindowEx(window_ex_style_, GetWindowClassName().c_str(), NULL, |
- window_style_, x, y, width, height, |
- parent, NULL, NULL, this); |
- DCHECK(hwnd_); |
- |
- // The window procedure should have set the data for us. |
- DCHECK(win_util::GetWindowUserData(hwnd_) == this); |
-} |
- |
-HICON WindowImpl::GetDefaultWindowIcon() const { |
- return NULL; |
-} |
- |
-LRESULT WindowImpl::OnWndProc(UINT message, WPARAM w_param, LPARAM l_param) { |
- LRESULT result = 0; |
- |
- // Handle the message if it's in our message map; otherwise, let the system |
- // handle it. |
- if (!ProcessWindowMessage(hwnd_, message, w_param, l_param, result)) |
- result = DefWindowProc(hwnd_, message, w_param, l_param); |
- |
- return result; |
-} |
- |
-// static |
-LRESULT CALLBACK WindowImpl::WndProc(HWND hwnd, |
- UINT message, |
- WPARAM w_param, |
- LPARAM l_param) { |
- if (message == WM_NCCREATE) { |
- CREATESTRUCT* cs = reinterpret_cast<CREATESTRUCT*>(l_param); |
- WindowImpl* window = reinterpret_cast<WindowImpl*>(cs->lpCreateParams); |
- DCHECK(window); |
- win_util::SetWindowUserData(hwnd, window); |
- window->hwnd_ = hwnd; |
- return TRUE; |
- } |
- |
- WindowImpl* window = reinterpret_cast<WindowImpl*>( |
- win_util::GetWindowUserData(hwnd)); |
- if (!window) |
- return 0; |
- |
- return window->OnWndProc(message, w_param, l_param); |
-} |
- |
-std::wstring WindowImpl::GetWindowClassName() { |
- ClassInfo class_info(initial_class_style()); |
- std::wstring name; |
- if (Singleton<ClassRegistrar>()->RetrieveClassName(class_info, &name)) |
- return name; |
- |
- // No class found, need to register one. |
- WNDCLASSEX class_ex; |
- class_ex.cbSize = sizeof(WNDCLASSEX); |
- class_ex.style = class_info.style; |
- class_ex.lpfnWndProc = &WindowImpl::WndProc; |
- class_ex.cbClsExtra = 0; |
- class_ex.cbWndExtra = 0; |
- class_ex.hInstance = NULL; |
- class_ex.hIcon = GetDefaultWindowIcon(); |
- class_ex.hCursor = LoadCursor(NULL, IDC_ARROW); |
- class_ex.hbrBackground = reinterpret_cast<HBRUSH>(class_info.background + 1); |
- class_ex.lpszMenuName = NULL; |
- class_ex.lpszClassName = name.c_str(); |
- class_ex.hIconSm = class_ex.hIcon; |
- ATOM atom = RegisterClassEx(&class_ex); |
- DCHECK(atom); |
- |
- Singleton<ClassRegistrar>()->RegisterClass(class_info, name, atom); |
- |
- return name; |
-} |
- |
-} // namespace base |