Skeleton for app_list on OSX, and refactoring for enable_app_list=1 on OS=="mac".

ui/app_list/app_list_view.cc

Index: ui/app_list/app_list_view.cc
diff --git a/ui/app_list/app_list_view.cc b/ui/app_list/app_list_view.cc
deleted file mode 100644
index 1b5bf521f7cf62c2ee15bb50bdd60347c61f2221..0000000000000000000000000000000000000000
--- a/ui/app_list/app_list_view.cc
+++ /dev/null
@@ -1,306 +0,0 @@
-// Copyright (c) 2012 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 "ui/app_list/app_list_view.h"
-
-#include <algorithm>
-
-#include "base/string_util.h"
-#include "ui/app_list/app_list_background.h"
-#include "ui/app_list/app_list_constants.h"
-#include "ui/app_list/app_list_item_model.h"
-#include "ui/app_list/app_list_item_view.h"
-#include "ui/app_list/app_list_model.h"
-#include "ui/app_list/app_list_view_delegate.h"
-#include "ui/app_list/contents_view.h"
-#include "ui/app_list/pagination_model.h"
-#include "ui/app_list/search_box_model.h"
-#include "ui/app_list/search_box_view.h"
-#include "ui/base/events/event.h"
-#include "ui/gfx/insets.h"
-#include "ui/gfx/path.h"
-#include "ui/gfx/skia_util.h"
-#include "ui/views/bubble/bubble_frame_view.h"
-#include "ui/views/controls/textfield/textfield.h"
-#include "ui/views/layout/box_layout.h"
-#include "ui/views/widget/widget.h"
-
-namespace app_list {
-
-namespace {
-
-// Inner padding space in pixels of bubble contents.
-const int kInnerPadding = 1;
-
-// The distance between the arrow tip and edge of the anchor view.
-const int kArrowOffset = 10;
-
-// The maximum allowed time to wait for icon loading in milliseconds.
-const int kMaxIconLoadingWaitTimeInMs = 50;
-
-}  // namespace
-
-////////////////////////////////////////////////////////////////////////////////
-// AppListView::IconLoader
-
-class AppListView::IconLoader : public AppListItemModelObserver {
- public:
-  IconLoader(AppListView* owner,
-             AppListItemModel* item,
-             ui::ScaleFactor scale_factor)
-      : owner_(owner),
-        item_(item) {
-    item_->AddObserver(this);
-
-    // Triggers icon loading for given |scale_factor|.
-    item_->icon().GetRepresentation(scale_factor);
-  }
-
-  virtual ~IconLoader() {
-    item_->RemoveObserver(this);
-  }
-
- private:
-  // AppListItemModelObserver overrides:
-  virtual void ItemIconChanged() OVERRIDE {
-    owner_->OnItemIconLoaded(this);
-    // Note that IconLoader is released here.
-  }
-  virtual void ItemTitleChanged() OVERRIDE {}
-  virtual void ItemHighlightedChanged() OVERRIDE {}
-
-  AppListView* owner_;
-  AppListItemModel* item_;
-
-  DISALLOW_COPY_AND_ASSIGN(IconLoader);
-};
-
-////////////////////////////////////////////////////////////////////////////////
-// AppListView:
-
-AppListView::AppListView(AppListViewDelegate* delegate)
-    : model_(new AppListModel),
-      delegate_(delegate),
-      search_box_view_(NULL),
-      contents_view_(NULL) {
-  if (delegate_)
-    delegate_->SetModel(model_.get());
-}
-
-AppListView::~AppListView() {
-  // Models are going away, ensure their references are cleared.
-  RemoveAllChildViews(true);
-  pending_icon_loaders_.clear();
-}
-
-void AppListView::InitAsBubble(
-    gfx::NativeView parent,
-    PaginationModel* pagination_model,
-    views::View* anchor,
-    const gfx::Point& anchor_point,
-    views::BubbleBorder::ArrowLocation arrow_location) {
-  // Starts icon loading early.
-  PreloadIcons(pagination_model, anchor);
-
-  SetLayoutManager(new views::BoxLayout(views::BoxLayout::kVertical,
-                                        kInnerPadding,
-                                        kInnerPadding,
-                                        kInnerPadding));
-
-  search_box_view_ = new SearchBoxView(this);
-  AddChildView(search_box_view_);
-
-  contents_view_ = new ContentsView(this, pagination_model);
-  AddChildView(contents_view_);
-
-  search_box_view_->set_contents_view(contents_view_);
-
-  set_anchor_view(anchor);
-  set_anchor_point(anchor_point);
-  set_color(kContentsBackgroundColor);
-  set_margins(gfx::Insets());
-  set_move_with_anchor(true);
-  set_parent_window(parent);
-  set_close_on_deactivate(false);
-  set_close_on_esc(false);
-  set_anchor_insets(gfx::Insets(kArrowOffset, kArrowOffset,
-                                kArrowOffset, kArrowOffset));
-  set_shadow(views::BubbleBorder::BIG_SHADOW);
-  views::BubbleDelegateView::CreateBubble(this);
-  SetBubbleArrowLocation(arrow_location);
-
-#if defined(USE_AURA)
-  GetBubbleFrameView()->set_background(new AppListBackground(
-      GetBubbleFrameView()->bubble_border()->GetBorderCornerRadius(),
-      search_box_view_));
-
-  contents_view_->SetPaintToLayer(true);
-  contents_view_->SetFillsBoundsOpaquely(false);
-  contents_view_->layer()->SetMasksToBounds(true);
-  set_background(NULL);
-#else
-  set_background(new AppListBackground(
-      GetBubbleFrameView()->bubble_border()->GetBorderCornerRadius(),
-      search_box_view_));
-#endif
-
-  search_box_view_->SetModel(model_->search_box());
-  contents_view_->SetModel(model_.get());
-}
-
-void AppListView::SetBubbleArrowLocation(
-    views::BubbleBorder::ArrowLocation arrow_location) {
-  GetBubbleFrameView()->bubble_border()->set_arrow_location(arrow_location);
-  SizeToContents();  // Recalcuates with new border.
-  GetBubbleFrameView()->SchedulePaint();
-}
-
-void AppListView::SetAnchorPoint(const gfx::Point& anchor_point) {
-  set_anchor_point(anchor_point);
-  SizeToContents();  // Repositions view relative to the anchor.
-}
-
-void AppListView::ShowWhenReady() {
-  if (pending_icon_loaders_.empty()) {
-    icon_loading_wait_timer_.Stop();
-    GetWidget()->Show();
-    return;
-  }
-
-  if (icon_loading_wait_timer_.IsRunning())
-    return;
-
-  icon_loading_wait_timer_.Start(
-      FROM_HERE,
-      base::TimeDelta::FromMilliseconds(kMaxIconLoadingWaitTimeInMs),
-      this, &AppListView::OnIconLoadingWaitTimer);
-}
-
-void AppListView::Close() {
-  icon_loading_wait_timer_.Stop();
-
-  if (delegate_.get())
-    delegate_->Dismiss();
-  else
-    GetWidget()->Close();
-}
-
-void AppListView::UpdateBounds() {
-  SizeToContents();
-}
-
-void AppListView::PreloadIcons(PaginationModel* pagination_model,
-                               views::View* anchor) {
-  ui::ScaleFactor scale_factor = ui::SCALE_FACTOR_100P;
-  if (anchor && anchor->GetWidget()) {
-    scale_factor = ui::GetScaleFactorForNativeView(
-        anchor->GetWidget()->GetNativeView());
-  }
-
-  // |pagination_model| could have -1 as the initial selected page and
-  // assumes first page (i.e. index 0) will be used in this case.
-  const int selected_page = std::max(0, pagination_model->selected_page());
-
-  const int tiles_per_page = kPreferredCols * kPreferredRows;
-  const int start_model_index = selected_page * tiles_per_page;
-  const int end_model_index = std::min(
-      static_cast<int>(model_->apps()->item_count()),
-      start_model_index + tiles_per_page);
-
-  pending_icon_loaders_.clear();
-  for (int i = start_model_index; i < end_model_index; ++i) {
-    AppListItemModel* item = model_->apps()->GetItemAt(i);
-    if (item->icon().HasRepresentation(scale_factor))
-      continue;
-
-    pending_icon_loaders_.push_back(new IconLoader(this, item, scale_factor));
-  }
-}
-
-void AppListView::OnIconLoadingWaitTimer() {
-  GetWidget()->Show();
-}
-
-void AppListView::OnItemIconLoaded(IconLoader* loader) {
-  ScopedVector<IconLoader>::iterator it = std::find(
-      pending_icon_loaders_.begin(), pending_icon_loaders_.end(), loader);
-  DCHECK(it != pending_icon_loaders_.end());
-  pending_icon_loaders_.erase(it);
-
-  if (pending_icon_loaders_.empty() && icon_loading_wait_timer_.IsRunning()) {
-    icon_loading_wait_timer_.Stop();
-    GetWidget()->Show();
-  }
-}
-
-views::View* AppListView::GetInitiallyFocusedView() {
-  return search_box_view_->search_box();
-}
-
-bool AppListView::WidgetHasHitTestMask() const {
-  return true;
-}
-
-void AppListView::GetWidgetHitTestMask(gfx::Path* mask) const {
-  DCHECK(mask);
-  mask->addRect(gfx::RectToSkRect(
-      GetBubbleFrameView()->GetContentsBounds()));
-}
-
-bool AppListView::AcceleratorPressed(const ui::Accelerator& accelerator) {
-  // The accelerator is added by BubbleDelegateView.
-  if (accelerator.key_code() == ui::VKEY_ESCAPE) {
-    Close();
-    return true;
-  }
-
-  return false;
-}
-
-void AppListView::ActivateApp(AppListItemModel* item, int event_flags) {
-  if (delegate_.get())
-    delegate_->ActivateAppListItem(item, event_flags);
-}
-
-void AppListView::QueryChanged(SearchBoxView* sender) {
-  string16 query;
-  TrimWhitespace(model_->search_box()->text(), TRIM_ALL, &query);
-  bool should_show_search = !query.empty();
-  contents_view_->ShowSearchResults(should_show_search);
-
-  if (delegate_.get()) {
-    if (should_show_search)
-      delegate_->StartSearch();
-    else
-      delegate_->StopSearch();
-  }
-}
-
-void AppListView::OpenResult(const SearchResult& result, int event_flags) {
-  if (delegate_.get())
-    delegate_->OpenSearchResult(result, event_flags);
-}
-
-void AppListView::InvokeResultAction(const SearchResult& result,
-                                     int action_index,
-                                     int event_flags) {
-  if (delegate_.get())
-    delegate_->InvokeSearchResultAction(result, action_index, event_flags);
-}
-
-void AppListView::OnWidgetClosing(views::Widget* widget) {
-  BubbleDelegateView::OnWidgetClosing(widget);
-  if (delegate_.get() && widget == GetWidget())
-    delegate_->ViewClosing();
-}
-
-void AppListView::OnWidgetActivationChanged(views::Widget* widget,
-                                            bool active) {
-  // Do not called inherited function as the bubble delegate auto close
-  // functionality is not used.
-  if (delegate_.get() && widget == GetWidget())
-    delegate_->ViewActivationChanged(active);
-}
-
-}  // namespace app_list