Split out the contents view into its own header. rename it to AutocompletePop...

chrome/browser/views/autocomplete/autocomplete_popup_win.cc

Index: chrome/browser/views/autocomplete/autocomplete_popup_win.cc
===================================================================
--- chrome/browser/views/autocomplete/autocomplete_popup_win.cc	(revision 13897)
+++ chrome/browser/views/autocomplete/autocomplete_popup_win.cc	(working copy)
@@ -4,456 +4,12 @@
 
 #include "chrome/browser/views/autocomplete/autocomplete_popup_win.h"
 
-#include <dwmapi.h>
-
 #include "chrome/browser/autocomplete/autocomplete_edit_view_win.h"
 #include "chrome/browser/autocomplete/autocomplete_popup_model.h"
-#include "chrome/common/gfx/chrome_canvas.h"
-#include "chrome/common/gfx/color_utils.h"
+#include "chrome/browser/views/autocomplete/autocomplete_popup_contents_view.h"
 #include "chrome/common/gfx/insets.h"
-#include "chrome/common/gfx/path.h"
-#include "chrome/common/resource_bundle.h"
 #include "chrome/common/win_util.h"
-#include "grit/theme_resources.h"
-#include "skia/include/SkShader.h"
 
-// The stroke color around the popup border.
-static const SkColor kEdgeColor = SkColorSetRGB(183, 195, 219);
-static const int kPopupTransparency = 235;
-static const int kHoverRowAlpha = 0x40;
-
-// TODO(beng): documentation, finalize
-class AutocompleteResultViewModel {
- public:
-  virtual bool IsSelectedIndex(size_t index) = 0;
-
-  virtual AutocompleteMatch::Type GetResultTypeAtIndex(size_t index) = 0;
-
-  virtual void OpenIndex(size_t index, WindowOpenDisposition disposition) = 0;
-
-  virtual void SetHoveredLine(size_t index) = 0;
-  virtual void SetSelectedLine(size_t index, bool revert_to_default) = 0;
-};
-
-class AutocompleteResultView : public views::View {
- public:
-  AutocompleteResultView(AutocompleteResultViewModel* model, int model_index);
-  virtual ~AutocompleteResultView();
-
-  // Overridden from views::View:
-  virtual void Paint(ChromeCanvas* canvas);  
-  virtual gfx::Size GetPreferredSize();
-  virtual void OnMouseEntered(const views::MouseEvent& event);
-  virtual void OnMouseMoved(const views::MouseEvent& event);
-  virtual void OnMouseExited(const views::MouseEvent& event);
-  virtual bool OnMousePressed(const views::MouseEvent& event);
-  virtual void OnMouseReleased(const views::MouseEvent& event, bool canceled);
-  virtual bool OnMouseDragged(const views::MouseEvent& event);
-
- private:
-  // Paint the result view in different ways.
-  void PaintAsSearchDefault(ChromeCanvas* canvas);
-  void PaintAsURLSuggestion(ChromeCanvas* canvas);
-  void PaintAsQuerySuggestion(ChromeCanvas* canvas);
-  void PaintAsMoreRow(ChromeCanvas* canvas);
-
-  // Get colors for row backgrounds and text for different row states.
-  SkColor GetHighlightRowColor() const;
-  SkColor GetHighlightTextColor() const;
-  SkColor GetHoverRowColor() const;
-  SkColor GetTextColor() const;
-
-  // This row's model and model index.
-  AutocompleteResultViewModel* model_;
-  size_t model_index_;
-
-  // True if the mouse is over this row.
-  bool hot_;
-
-  DISALLOW_COPY_AND_ASSIGN(AutocompleteResultView);
-};
-
-AutocompleteResultView::AutocompleteResultView(
-    AutocompleteResultViewModel* model,
-    int model_index)
-    : model_(model),
-      model_index_(model_index),
-      hot_(false) {
-}
-
-AutocompleteResultView::~AutocompleteResultView() {
-}
-
-void AutocompleteResultView::Paint(ChromeCanvas* canvas) {
-  // Paint the row background if any.
-  if (model_->IsSelectedIndex(model_index_))
-    canvas->FillRectInt(GetHighlightRowColor(), 0, 0, width(), height());
-  else if (hot_)
-    canvas->FillRectInt(GetHoverRowColor(), 0, 0, width(), height());
-}
-
-gfx::Size AutocompleteResultView::GetPreferredSize() {
-  return gfx::Size(0, 30);
-}
-
-void AutocompleteResultView::OnMouseEntered(const views::MouseEvent& event) {
-  hot_ = true;
-  SchedulePaint();
-}
-
-void AutocompleteResultView::OnMouseMoved(const views::MouseEvent& event) {
-  if (!hot_) {
-    hot_ = true;
-    SchedulePaint();
-  }
-}
-
-void AutocompleteResultView::OnMouseExited(const views::MouseEvent& event) {
-  hot_ = false;
-  SchedulePaint();
-}
-
-bool AutocompleteResultView::OnMousePressed(const views::MouseEvent& event) {
-  if (event.IsOnlyLeftMouseButton()) {
-    model_->SetHoveredLine(model_index_);
-    model_->SetSelectedLine(model_index_, false);
-  } else if (event.IsOnlyMiddleMouseButton()) {
-    model_->SetHoveredLine(model_index_);
-  }
-  return true;
-}
-
-void AutocompleteResultView::OnMouseReleased(const views::MouseEvent& event,
-                                             bool canceled) {
-  if (canceled)
-    return;
-  if (event.IsOnlyMiddleMouseButton())
-    model_->OpenIndex(model_index_, NEW_BACKGROUND_TAB);
-  else if (event.IsOnlyLeftMouseButton())
-    model_->OpenIndex(model_index_, CURRENT_TAB);
-}
-
-bool AutocompleteResultView::OnMouseDragged(const views::MouseEvent& event) {
-  // TODO(beng): move all message handling into the contents view and override
-  //             GetViewForPoint.
-  return false;
-}
-
-void AutocompleteResultView::PaintAsSearchDefault(ChromeCanvas* canvas) {
-
-}
-
-void AutocompleteResultView::PaintAsURLSuggestion(ChromeCanvas* canvas) {
-
-}
-
-void AutocompleteResultView::PaintAsQuerySuggestion(ChromeCanvas* canvas) {
-
-}
-
-void AutocompleteResultView::PaintAsMoreRow(ChromeCanvas* canvas) {
-
-}
-
-SkColor AutocompleteResultView::GetHighlightRowColor() const {
-  return color_utils::GetSysSkColor(COLOR_HIGHLIGHT);
-}
-
-SkColor AutocompleteResultView::GetHighlightTextColor() const {
-  return color_utils::GetSysSkColor(COLOR_HIGHLIGHTTEXT);
-}
-
-SkColor AutocompleteResultView::GetHoverRowColor() const {
-  COLORREF color = GetSysColor(COLOR_HIGHLIGHT);
-  return SkColorSetARGB(kHoverRowAlpha, GetRValue(color), GetGValue(color),
-                        GetBValue(color));
-}
-
-SkColor AutocompleteResultView::GetTextColor() const {
-  return color_utils::GetSysSkColor(COLOR_WINDOWTEXT);
-}
-
-class PopupBorder : public views::Border {
- public:
-  PopupBorder() {
-    InitClass();
-  }
-  virtual ~PopupBorder() {}
-
-  // Returns the border radius of the edge of the popup.
-  static int GetBorderRadius() {
-    InitClass();
-    return dropshadow_topleft_->width() - dropshadow_left_->width() - 1;
-  }
-
-  // Overridden from views::Border:
-  virtual void Paint(const views::View& view, ChromeCanvas* canvas) const;
-  virtual void GetInsets(gfx::Insets* insets) const;
-
- private:
-  // Border graphics.
-  static SkBitmap* dropshadow_left_;
-  static SkBitmap* dropshadow_topleft_;
-  static SkBitmap* dropshadow_top_;
-  static SkBitmap* dropshadow_topright_;
-  static SkBitmap* dropshadow_right_;
-  static SkBitmap* dropshadow_bottomright_;
-  static SkBitmap* dropshadow_bottom_;
-  static SkBitmap* dropshadow_bottomleft_;
-
-  static void InitClass();
-
-  DISALLOW_COPY_AND_ASSIGN(PopupBorder);
-};
-
-// static
-SkBitmap* PopupBorder::dropshadow_left_ = NULL;
-SkBitmap* PopupBorder::dropshadow_topleft_ = NULL;
-SkBitmap* PopupBorder::dropshadow_top_ = NULL;
-SkBitmap* PopupBorder::dropshadow_topright_ = NULL;
-SkBitmap* PopupBorder::dropshadow_right_ = NULL;
-SkBitmap* PopupBorder::dropshadow_bottomright_ = NULL;
-SkBitmap* PopupBorder::dropshadow_bottom_ = NULL;
-SkBitmap* PopupBorder::dropshadow_bottomleft_ = NULL;
-
-void PopupBorder::Paint(const views::View& view, ChromeCanvas* canvas) const {
-  int ds_tl_width = dropshadow_topleft_->width();
-  int ds_tl_height = dropshadow_topleft_->height();
-  int ds_tr_width = dropshadow_topright_->width();
-  int ds_tr_height = dropshadow_topright_->height();
-  int ds_br_width = dropshadow_bottomright_->width();
-  int ds_br_height = dropshadow_bottomright_->height();
-  int ds_bl_width = dropshadow_bottomleft_->width();
-  int ds_bl_height = dropshadow_bottomleft_->height();
-
-  canvas->DrawBitmapInt(*dropshadow_topleft_, 0, 0);
-  canvas->TileImageInt(*dropshadow_top_, ds_tl_width, 0,
-                       view.width() - ds_tr_width - ds_tl_width,
-                       dropshadow_top_->height());
-  canvas->DrawBitmapInt(*dropshadow_topright_, view.width() - ds_tr_width, 0);
-  canvas->TileImageInt(*dropshadow_right_,
-                       view.width() - dropshadow_right_->width(),
-                       ds_tr_height, dropshadow_right_->width(),
-                       view.height() - ds_tr_height - ds_br_height);
-  canvas->DrawBitmapInt(*dropshadow_bottomright_, view.width() - ds_br_width,
-                        view.height() - ds_br_height);
-  canvas->TileImageInt(*dropshadow_bottom_, ds_bl_width,
-                       view.height() - dropshadow_bottom_->height(),
-                       view.width() - ds_bl_width - ds_br_width,
-                       dropshadow_bottom_->height());
-  canvas->DrawBitmapInt(*dropshadow_bottomleft_, 0,
-                        view.height() - dropshadow_bottomleft_->height());
-  canvas->TileImageInt(*dropshadow_left_, 0, ds_tl_height,
-                       dropshadow_left_->width(),
-                       view.height() - ds_tl_height - ds_bl_height);
-}
-
-void PopupBorder::GetInsets(gfx::Insets* insets) const {
-  // The left, right and bottom edge image sizes define our insets. The corner
-  // images don't determine this because they can extend in both directions.
-  insets->Set(dropshadow_top_->height(), dropshadow_left_->width(),
-              dropshadow_bottom_->height(), dropshadow_right_->width());
-}
-
-void PopupBorder::InitClass() {
-  static bool initialized = false;
-  if (!initialized) {
-    ResourceBundle& rb = ResourceBundle::GetSharedInstance();
-    dropshadow_left_ = rb.GetBitmapNamed(IDR_OMNIBOX_POPUP_DS_L);
-    dropshadow_topleft_ = rb.GetBitmapNamed(IDR_OMNIBOX_POPUP_DS_TL);
-    dropshadow_top_ = rb.GetBitmapNamed(IDR_OMNIBOX_POPUP_DS_T);
-    dropshadow_topright_ = rb.GetBitmapNamed(IDR_OMNIBOX_POPUP_DS_TR);
-    dropshadow_right_ = rb.GetBitmapNamed(IDR_OMNIBOX_POPUP_DS_R);
-    dropshadow_bottomright_ = rb.GetBitmapNamed(IDR_OMNIBOX_POPUP_DS_BR);
-    dropshadow_bottom_ = rb.GetBitmapNamed(IDR_OMNIBOX_POPUP_DS_B);
-    dropshadow_bottomleft_ = rb.GetBitmapNamed(IDR_OMNIBOX_POPUP_DS_BL);
-    initialized = true;
-  }
-}
-
-class AutocompletePopupViewContents : public views::View,
-                                      public AutocompleteResultViewModel {
- public:
-  explicit AutocompletePopupViewContents(AutocompletePopupWin* popup)
-      : popup_(popup) {
-    set_border(new PopupBorder);
-  }
-  virtual ~AutocompletePopupViewContents() {}
-
-  // Update the presentation with the latest result.
-  void SetAutocompleteResult(const AutocompleteResult& result);
-
-  // Schedule a repaint for the specified row.
-  void InvalidateLine(int index);
-
-  // Overridden from AutocompleteResultViewModel:
-  virtual bool IsSelectedIndex(size_t index);
-  virtual AutocompleteMatch::Type GetResultTypeAtIndex(size_t index);
-  virtual void OpenIndex(size_t index, WindowOpenDisposition disposition);
-  virtual void SetHoveredLine(size_t index);
-  virtual void SetSelectedLine(size_t index, bool revert_to_default);
-
-  // Overridden from views::View:
-  virtual void PaintChildren(ChromeCanvas* canvas);
-  virtual void Layout();
-
- private:
-  // Fill a path for the contents' roundrect. |bounding_rect| is the rect that
-  // bounds the path.
-  void MakeContentsPath(gfx::Path* path, const gfx::Rect& bounding_rect);
-
-  // Updates the window's blur region for the current size.
-  void UpdateBlurRegion();
-
-  // Makes the contents of the canvas slightly transparent.
-  void MakeCanvasTransparent(ChromeCanvas* canvas);
-
-  AutocompletePopupWin* popup_;
-
-  DISALLOW_COPY_AND_ASSIGN(AutocompletePopupViewContents);
-};
-
-void AutocompletePopupViewContents::SetAutocompleteResult(
-    const AutocompleteResult& result) {
-  RemoveAllChildViews(true);
-  for (size_t i = 0; i < result.size(); ++i) {
-    AutocompleteMatch match = result.match_at(i);
-    AutocompleteResultView* result = new AutocompleteResultView(this, i);
-    AddChildView(result);
-  }
-  Layout();
-}
-
-void AutocompletePopupViewContents::InvalidateLine(int index) {
-  GetChildViewAt(index)->SchedulePaint();
-}
-
-bool AutocompletePopupViewContents::IsSelectedIndex(size_t index) {
-  return index == popup_->GetModel()->selected_line();
-}
-
-AutocompleteMatch::Type AutocompletePopupViewContents::GetResultTypeAtIndex(
-    size_t index) {
-  return popup_->GetModel()->result().match_at(index).type;
-}
-
-void AutocompletePopupViewContents::OpenIndex(
-    size_t index,
-    WindowOpenDisposition disposition) {
-  popup_->OpenIndex(index, disposition);
-}
-
-void AutocompletePopupViewContents::SetHoveredLine(size_t index) {
-  popup_->SetHoveredLine(index);
-}
-
-void AutocompletePopupViewContents::SetSelectedLine(size_t index,
-                                                    bool revert_to_default) {
-  popup_->SetSelectedLine(index, revert_to_default);
-}
-
-void AutocompletePopupViewContents::PaintChildren(ChromeCanvas* canvas) {
-  // We paint our children in an unconventional way.
-  //
-  // Because the border of this view creates an anti-aliased round-rect region
-  // for the contents, we need to render our rectangular result child views into
-  // this round rect region. We can't use a simple clip because clipping is
-  // 1-bit and we get nasty jagged edges.
-  //
-  // Instead, we paint all our children into a second canvas and use that as a
-  // shader to fill a path representing the round-rect clipping region. This
-  // yields a nice anti-aliased edge.
-  gfx::Rect contents_rect = GetLocalBounds(false);
-  ChromeCanvas contents_canvas(contents_rect.width(), contents_rect.height(),
-                               true);
-  contents_canvas.FillRectInt(color_utils::GetSysSkColor(COLOR_WINDOW), 0, 0,
-                              contents_rect.width(), contents_rect.height());
-  // We want the contents background to be slightly transparent so we can see
-  // the blurry glass effect on DWM systems behind.
-  MakeCanvasTransparent(&contents_canvas);
-  View::PaintChildren(&contents_canvas);
-
-  // Now paint the contents of the contents canvas into the actual canvas.
-  SkPaint paint;
-  paint.setAntiAlias(true);
-
-  SkShader* shader = SkShader::CreateBitmapShader(
-      contents_canvas.getDevice()->accessBitmap(false),
-      SkShader::kClamp_TileMode,
-      SkShader::kClamp_TileMode);
-  paint.setShader(shader);
-  shader->unref();
-
-  gfx::Path path;
-  MakeContentsPath(&path, contents_rect);
-  canvas->drawPath(path, paint);
-}
-
-void AutocompletePopupViewContents::Layout() {
-  UpdateBlurRegion();
-
-  // Size our children to the available content area.
-  gfx::Rect contents_rect = GetLocalBounds(false);
-  int child_count = GetChildViewCount();
-  int top = contents_rect.y();
-  for (int i = 0; i < child_count; ++i) {
-    View* v = GetChildViewAt(i);
-    v->SetBounds(contents_rect.x(), top, contents_rect.width(),
-                 v->GetPreferredSize().height());
-    top = v->bounds().bottom();
-  }
-
-  // We need to manually schedule a paint here since we are a layered window and
-  // won't implicitly require painting until we ask for one.
-  SchedulePaint();
-}
-
-void AutocompletePopupViewContents::MakeContentsPath(
-    gfx::Path* path,
-    const gfx::Rect& bounding_rect) {
-  SkRect rect;
-  rect.set(SkIntToScalar(bounding_rect.x()),
-           SkIntToScalar(bounding_rect.y()),
-           SkIntToScalar(bounding_rect.right()),
-           SkIntToScalar(bounding_rect.bottom()));
-
-  SkScalar radius = SkIntToScalar(PopupBorder::GetBorderRadius());
-  path->addRoundRect(rect, radius, radius);
-}
-
-void AutocompletePopupViewContents::UpdateBlurRegion() {
-  // Provide a blurred background effect within the contents region of the
-  // popup.
-  DWM_BLURBEHIND bb = {0};
-  bb.dwFlags = DWM_BB_ENABLE | DWM_BB_BLURREGION;
-  bb.fEnable = true;
-
-  // Translate the contents rect into widget coordinates, since that's what
-  // DwmEnableBlurBehindWindow expects a region in.
-  gfx::Rect contents_rect = GetLocalBounds(false);
-  gfx::Point origin(contents_rect.origin());
-  views::View::ConvertPointToWidget(this, &origin);
-  contents_rect.set_origin(origin);
-
-  gfx::Path contents_path;
-  MakeContentsPath(&contents_path, contents_rect);
-  ScopedGDIObject<HRGN> popup_region;
-  popup_region.Set(contents_path.CreateHRGN());
-  bb.hRgnBlur = popup_region.Get();
-  DwmEnableBlurBehindWindow(GetWidget()->GetNativeView(), &bb);
-}
-
-void AutocompletePopupViewContents::MakeCanvasTransparent(
-    ChromeCanvas* canvas) {
-  // Allow the window blur effect to show through the popup background.
-  SkPaint paint;
-  paint.setColor(SkColorSetARGB(kPopupTransparency, 255, 255, 255));
-  paint.setPorterDuffXfermode(SkPorterDuff::kDstIn_Mode);
-  paint.setStyle(SkPaint::kFill_Style);
-  canvas->FillRectInt(0, 0, canvas->getDevice()->width(),
-                      canvas->getDevice()->height(), paint);
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // AutocompletePopupWin, public:
 
@@ -466,7 +22,7 @@
     : model_(new AutocompletePopupModel(this, edit_model, profile)),
       edit_view_(edit_view),
       popup_positioner_(popup_positioner),
-      contents_(new AutocompletePopupViewContents(this)) {
+      contents_(new AutocompletePopupContentsView(this)) {
   set_delete_on_destroy(false);
   set_window_style(WS_POPUP | WS_CLIPCHILDREN);
   set_window_ex_style(WS_EX_TOOLWINDOW | WS_EX_LAYERED);