Support DWM switching....

chrome/browser/views/frame/aero_glass_frame.cc

-// Copyright (c) 2006-2008 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 "chrome/browser/views/frame/aero_glass_frame.h"
-
-#include <dwmapi.h>
-
-#include "chrome/browser/browser_list.h"
-#include "chrome/browser/views/frame/browser_view.h"
-#include "chrome/browser/views/frame/aero_glass_non_client_view.h"
-#include "chrome/common/resource_bundle.h"
-#include "chrome/views/window_delegate.h"
-#include "grit/theme_resources.h"
-
-// static
-
-static const int kClientEdgeThickness = 3;
-
-HICON AeroGlassFrame::throbber_icons_[AeroGlassFrame::kThrobberIconCount];
-
-///////////////////////////////////////////////////////////////////////////////
-// AeroGlassFrame, public:
-
-AeroGlassFrame::AeroGlassFrame(BrowserView* browser_view)
-    : Window(browser_view),
-      browser_view_(browser_view),
-      frame_initialized_(false),
-      throbber_running_(false),
-      throbber_frame_(0) {
-  non_client_view_ = new AeroGlassNonClientView(this, browser_view);
-  browser_view_->set_frame(this);
-
-  if (window_delegate()->ShouldShowWindowIcon())
-    InitThrobberIcons();
-}
-
-AeroGlassFrame::~AeroGlassFrame() {
-}
-
-void AeroGlassFrame::Init() {
-  Window::Init(NULL, gfx::Rect());
-}
-
-int AeroGlassFrame::GetMinimizeButtonOffset() const {
-  TITLEBARINFOEX titlebar_info;
-  titlebar_info.cbSize = sizeof(TITLEBARINFOEX);
-  SendMessage(GetHWND(), WM_GETTITLEBARINFOEX, 0, (WPARAM)&titlebar_info);
-
-  CPoint minimize_button_corner(titlebar_info.rgrect[2].left,
-                                titlebar_info.rgrect[2].top);
-  MapWindowPoints(HWND_DESKTOP, GetHWND(), &minimize_button_corner, 1);
-
-  return minimize_button_corner.x;
-}
-
-///////////////////////////////////////////////////////////////////////////////
-// AeroGlassFrame, BrowserFrame implementation:
-
-gfx::Rect AeroGlassFrame::GetWindowBoundsForClientBounds(
-    const gfx::Rect& client_bounds) {
-  RECT rect = client_bounds.ToRECT();
-  AdjustWindowRectEx(&rect, window_style(), FALSE, window_ex_style());
-  return gfx::Rect(rect);
-}
-
-gfx::Rect AeroGlassFrame::GetBoundsForTabStrip(TabStrip* tabstrip) const {
-  return GetAeroGlassNonClientView()->GetBoundsForTabStrip(tabstrip);
-}
-
-void AeroGlassFrame::UpdateThrobber(bool running) {
-  if (throbber_running_) {
-    if (running) {
-      DisplayNextThrobberFrame();
-    } else {
-      StopThrobber();
-    }
-  } else if (running) {
-    StartThrobber();
-  }
-}
-
-views::Window* AeroGlassFrame::GetWindow() {
-  return this;
-}
-
-const views::Window* AeroGlassFrame::GetWindow() const {
-  return this;
-}
-
-///////////////////////////////////////////////////////////////////////////////
-// AeroGlassFrame, views::WidgetWin overrides:
-
-bool AeroGlassFrame::AcceleratorPressed(views::Accelerator* accelerator) {
-  return browser_view_->AcceleratorPressed(*accelerator);
-}
-
-bool AeroGlassFrame::GetAccelerator(int cmd_id,
-                                    views::Accelerator* accelerator) {
-  return browser_view_->GetAccelerator(cmd_id, accelerator);
-}
-
-void AeroGlassFrame::OnInitMenuPopup(HMENU menu, UINT position,
-                                     BOOL is_system_menu) {
-  browser_view_->PrepareToRunSystemMenu(menu);
-}
-
-void AeroGlassFrame::OnEnterSizeMove() {
-  browser_view_->WindowMoveOrResizeStarted();
-}
-
-void AeroGlassFrame::OnEndSession(BOOL ending, UINT logoff) {
-  BrowserList::WindowsSessionEnding();
-}
-
-LRESULT AeroGlassFrame::OnMouseActivate(HWND window, UINT hittest_code,
-                                        UINT message) {
-  return browser_view_->ActivateAppModalDialog() ? MA_NOACTIVATEANDEAT
-                                                 : MA_ACTIVATE;
-}
-
-void AeroGlassFrame::OnMove(const CPoint& point) {
-  browser_view_->WindowMoved();
-}
-
-void AeroGlassFrame::OnMoving(UINT param, const RECT* new_bounds) {
-  browser_view_->WindowMoved();
-}
-
-LRESULT AeroGlassFrame::OnNCActivate(BOOL active) {
-  if (browser_view_->ActivateAppModalDialog())
-    return TRUE;
-
-  if (!frame_initialized_) {
-    if (browser_view_->IsBrowserTypeNormal()) {
-      ::SetWindowPos(GetHWND(), NULL, 0, 0, 0, 0,
-                     SWP_NOSIZE | SWP_NOMOVE | SWP_FRAMECHANGED);
-      UpdateDWMFrame();
-    }
-    frame_initialized_ = true;
-  }
-  browser_view_->ActivationChanged(!!active);
-  SetMsgHandled(false);
-  return TRUE;
-}
-
-LRESULT AeroGlassFrame::OnNCCalcSize(BOOL mode, LPARAM l_param) {
-  if (!browser_view_->IsBrowserTypeNormal() || !mode) {
-    SetMsgHandled(FALSE);
-    return 0;
-  }
-
-  // In fullscreen mode, we make the whole window client area.
-  if (!browser_view_->IsFullscreen()) {
-    NCCALCSIZE_PARAMS* params = reinterpret_cast<NCCALCSIZE_PARAMS*>(l_param);
-    int border_thickness = GetSystemMetrics(SM_CXSIZEFRAME);
-    params->rgrc[0].left += (border_thickness - kClientEdgeThickness);
-    params->rgrc[0].right -= (border_thickness - kClientEdgeThickness);
-    params->rgrc[0].bottom -= (border_thickness - kClientEdgeThickness);
-  }
-
-  UpdateDWMFrame();
-
-  SetMsgHandled(TRUE);
-  return 0;
-}
-
-LRESULT AeroGlassFrame::OnNCHitTest(const CPoint& pt) {
-  LRESULT result;
-  if (DwmDefWindowProc(GetHWND(), WM_NCHITTEST, 0, MAKELPARAM(pt.x, pt.y),
-                       &result)) {
-    return result;
-  }
-  return Window::OnNCHitTest(pt);
-}
-
-///////////////////////////////////////////////////////////////////////////////
-// AeroGlassFrame, views::CustomFrameWindow overrides:
-
-int AeroGlassFrame::GetShowState() const {
-  return browser_view_->GetShowState();
-}
-
-///////////////////////////////////////////////////////////////////////////////
-// AeroGlassFrame, private:
-
-void AeroGlassFrame::UpdateDWMFrame() {
-  // Nothing to do yet.
-  if (!client_view())
-    return;
-
-  // In fullscreen mode, we don't extend glass into the client area at all,
-  // because the GDI-drawn text in the web content composited over it will
-  // become semi-transparent over any glass area.
-  MARGINS margins = { 0 };
-  if (!browser_view_->IsFullscreen()) {
-    margins.cxLeftWidth = kClientEdgeThickness + 1;
-    margins.cxRightWidth = kClientEdgeThickness + 1;
-    margins.cyTopHeight =
-        GetBoundsForTabStrip(browser_view_->tabstrip()).bottom();
-    margins.cyBottomHeight = kClientEdgeThickness + 1;
-  }
-  DwmExtendFrameIntoClientArea(GetHWND(), &margins);
-}
-
-AeroGlassNonClientView* AeroGlassFrame::GetAeroGlassNonClientView() const {
-  // We can safely assume that this conversion is true.
-  return static_cast<AeroGlassNonClientView*>(non_client_view_);
-}
-
-void AeroGlassFrame::StartThrobber() {
-  if (!throbber_running_) {
-    throbber_running_ = true;
-    throbber_frame_ = 0;
-    InitThrobberIcons();
-    ::SendMessage(GetHWND(), WM_SETICON, static_cast<WPARAM>(ICON_SMALL),
-                  reinterpret_cast<LPARAM>(throbber_icons_[throbber_frame_]));
-  }
-}
-
-void AeroGlassFrame::StopThrobber() {
-  if (throbber_running_)
-    throbber_running_ = false;
-}
-
-void AeroGlassFrame::DisplayNextThrobberFrame() {
-  throbber_frame_ = (throbber_frame_ + 1) % kThrobberIconCount;
-  ::SendMessage(GetHWND(), WM_SETICON, static_cast<WPARAM>(ICON_SMALL),
-                reinterpret_cast<LPARAM>(throbber_icons_[throbber_frame_]));
-}
-
-// static
-void AeroGlassFrame::InitThrobberIcons() {
-  static bool initialized = false;
-  if (!initialized) {
-    ResourceBundle &rb = ResourceBundle::GetSharedInstance();
-    for (int i = 0; i < kThrobberIconCount; ++i) {
-      throbber_icons_[i] = rb.LoadThemeIcon(IDR_THROBBER_01 + i);
-      DCHECK(throbber_icons_[i]);
-    }
-    initialized = true;
-  }
-}