Draggable peeking/fullscreen launcher with transparent background.

ui/app_list/views/start_page_view.cc

 // Copyright 2014 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/views/start_page_view.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/i18n/rtl.h"
 #include "base/macros.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/accessibility/ax_node_data.h"
 #include "ui/app_list/app_list_constants.h"
+#include "ui/app_list/app_list_features.h"
 #include "ui/app_list/app_list_item.h"
 #include "ui/app_list/app_list_model.h"
+#include "ui/app_list/app_list_switches.h"
 #include "ui/app_list/app_list_view_delegate.h"
 #include "ui/app_list/search_result.h"
 #include "ui/app_list/views/all_apps_tile_item_view.h"
 #include "ui/app_list/views/app_list_main_view.h"
 #include "ui/app_list/views/contents_view.h"
 #include "ui/app_list/views/custom_launcher_page_view.h"
 #include "ui/app_list/views/search_box_view.h"
 #include "ui/app_list/views/search_result_container_view.h"
 #include "ui/app_list/views/search_result_tile_item_view.h"
 #include "ui/app_list/views/tile_item_view.h"
 #include "ui/gfx/canvas.h"
 #include "ui/views/background.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/controls/textfield/textfield.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/layout/grid_layout.h"
 #include "ui/views/widget/widget.h"
 
 namespace app_list {
 
 namespace {
 
 // Layout constants.
 constexpr int kInstantContainerSpacing = 24;
 constexpr int kSearchBoxAndTilesSpacing = 35;
-constexpr int kStartPageSearchBoxWidth = 480;
-
+int kStartPageSearchBoxWidth = 480;

[vadimt, 2017/05/22 23:36:58]

constexpr?

[newcomer, 2017/05/25 23:10:53]

Done.

+int kStartPageSearchBoxWidthFullscreen = 544;
 // WebView constants.
 constexpr int kWebViewWidth = 700;
 constexpr int kWebViewHeight = 224;
 
 // Tile container constants.
 constexpr int kTileSpacing = 7;
 constexpr int kNumStartPageTilesCols = 5;
 constexpr int kTilesHorizontalMarginLeft = 145;
 
 constexpr int kLauncherPageBackgroundWidth = 400;
 
 // An invisible placeholder view which fills the space for the search box view
 // in a box layout. The search box view itself is a child of the AppListView
 // (because it is visible on many different pages).
 class SearchBoxSpacerView : public views::View {
  public:
   explicit SearchBoxSpacerView(const gfx::Size& search_box_size)
-      : size_(kStartPageSearchBoxWidth, search_box_size.height()) {}
+      : size_(features::IsFullscreenAppListEnabled()
+                  ? kStartPageSearchBoxWidthFullscreen
+                  : kStartPageSearchBoxWidth,
+              search_box_size.height()) {}
 
   ~SearchBoxSpacerView() override {}
 
   // Overridden from views::View:
   gfx::Size GetPreferredSize() const override { return size_; }
 
  private:
   gfx::Size size_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchBoxSpacerView);
@@ skipping 75 matching lines @@
     ContentsView* contents_view,
     AllAppsTileItemView* all_apps_button,
     AppListViewDelegate* view_delegate)
     : contents_view_(contents_view),
       view_delegate_(view_delegate),
       all_apps_button_(all_apps_button) {
   set_background(
       views::Background::CreateSolidBackground(kLabelBackgroundColor));
   all_apps_button_->SetHoverStyle(TileItemView::HOVER_STYLE_ANIMATE_SHADOW);
   all_apps_button_->SetParentBackgroundColor(kLabelBackgroundColor);
-  CreateAppsGrid(kNumStartPageTiles);
+  if (features::IsFullscreenAppListEnabled())

[vadimt, 2017/05/22 23:36:58]

Move condition into param calculation as a ternary expression.

[newcomer, 2017/05/25 23:10:53]

Done.

+    CreateAppsGrid(fullscreen_constants::kNumStartPageTiles);
+  else
+    CreateAppsGrid(kNumStartPageTiles);
 }
 
 StartPageView::StartPageTilesContainer::~StartPageTilesContainer() {
 }
 
 TileItemView* StartPageView::StartPageTilesContainer::GetTileItemView(
     int index) {
   DCHECK_GT(num_results(), index);
   if (index == num_results() - 1)
     return all_apps_button_;
@@ skipping 73 matching lines @@
   for (int col = 0; col < kNumStartPageTilesCols; ++col) {
     column_set->AddColumn(views::GridLayout::FILL, views::GridLayout::FILL, 0,
                           views::GridLayout::USE_PREF, 0, 0);
     column_set->AddPaddingColumn(0, kTileSpacing);
   }
 
   // Add SearchResultTileItemViews to the container.
   int i = 0;
   search_result_tile_views_.reserve(apps_num);
   for (; i < apps_num; ++i) {
+    if (features::IsFullscreenAppListEnabled() && i == 5) {

[vadimt, 2017/05/22 23:36:58]

Const for 5.

[xiyuan, 2017/05/24 18:28:18]

Make |apps_num| 5 somehow (either here or at call site CreateAppsGrid) of when
fullscreen feature is enabled.

[newcomer, 2017/05/25 23:10:53]

Done! I think I left this in by accident while experimenting.

[newcomer, 2017/05/25 23:10:53]

Done.

+      break;
+    }
     SearchResultTileItemView* tile_item =
         new SearchResultTileItemView(this, view_delegate_);
     if (i % kNumStartPageTilesCols == 0)
       tiles_layout_manager->StartRow(0, 0);
     tiles_layout_manager->AddView(tile_item);
     AddChildView(tile_item);
     tile_item->SetParentBackgroundColor(kLabelBackgroundColor);
     tile_item->SetHoverStyle(TileItemView::HOVER_STYLE_ANIMATE_SHADOW);
     search_result_tile_views_.emplace_back(tile_item);
   }
 
-  // Also add a special "all apps" button to the end of the container.
   all_apps_button_->UpdateIcon();
-  if (i % kNumStartPageTilesCols == 0)
+  if (features::IsFullscreenAppListEnabled()) {
+    // Also add a special "all apps" button to the middle of the next row of the
+    // container.
     tiles_layout_manager->StartRow(0, 0);
+    tiles_layout_manager->SkipColumns(3);

[vadimt, 2017/05/22 23:36:58]

... and 3

[newcomer, 2017/05/25 23:10:53]

Done.

+  } else {
+    // Also add a special "all apps" button to the end of the next row of the
+    // container.
+    if (i % kNumStartPageTilesCols == 0)
+      tiles_layout_manager->StartRow(0, 0);
+  }
+
   tiles_layout_manager->AddView(all_apps_button_);
   AddChildView(all_apps_button_);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // StartPageView implementation:
 StartPageView::StartPageView(AppListMainView* app_list_main_view,
                              AppListViewDelegate* view_delegate)
     : app_list_main_view_(app_list_main_view),
       view_delegate_(view_delegate),
       search_box_spacer_view_(new SearchBoxSpacerView(
           app_list_main_view->search_box_view()->GetPreferredSize())),
       instant_container_(new views::View),
       custom_launcher_page_background_(new CustomLauncherPageBackgroundView(
           view_delegate_->GetModel()->custom_launcher_page_name())),
       tiles_container_(new StartPageTilesContainer(
           app_list_main_view->contents_view(),
           new AllAppsTileItemView(app_list_main_view_->contents_view()),
           view_delegate)) {
   // The view containing the start page WebContents and SearchBoxSpacerView.
   InitInstantContainer();
   AddChildView(instant_container_);
 
   // The view containing the start page tiles.
   AddChildView(tiles_container_);
-
   AddChildView(custom_launcher_page_background_);
 
   tiles_container_->SetResults(view_delegate_->GetModel()->results());
 }
 
 StartPageView::~StartPageView() {
 }
 
 void StartPageView::InitInstantContainer() {
   views::BoxLayout* instant_layout_manager = new views::BoxLayout(
       views::BoxLayout::kVertical, 0, 0, kInstantContainerSpacing);
   instant_layout_manager->set_inside_border_insets(
       gfx::Insets(0, 0, kSearchBoxAndTilesSpacing, 0));
   instant_layout_manager->set_main_axis_alignment(
       views::BoxLayout::MAIN_AXIS_ALIGNMENT_END);
   instant_layout_manager->set_cross_axis_alignment(
       views::BoxLayout::CROSS_AXIS_ALIGNMENT_CENTER);
   instant_container_->SetLayoutManager(instant_layout_manager);
 
-  views::View* web_view = view_delegate_->CreateStartPageWebView(
-      gfx::Size(kWebViewWidth, kWebViewHeight));
-  if (web_view) {
-    web_view->SetFocusBehavior(FocusBehavior::NEVER);
-    instant_container_->AddChildView(web_view);
+  // Create the view for the Google Doodle if the fullscreen launcher is not
+  // enabled.
+  if (!features::IsFullscreenAppListEnabled()) {
+    views::View* web_view = view_delegate_->CreateStartPageWebView(
+        gfx::Size(kWebViewWidth, kWebViewHeight));
+
+    if (web_view) {
+      web_view->SetFocusBehavior(FocusBehavior::NEVER);
+      instant_container_->AddChildView(web_view);
+    }
   }
 
   instant_container_->AddChildView(search_box_spacer_view_);
 }
 
 void StartPageView::MaybeOpenCustomLauncherPage() {
   // Switch to the custom page.
   ContentsView* contents_view = app_list_main_view_->contents_view();
   if (!app_list_main_view_->ShouldShowCustomLauncherPage())
     return;
@@ skipping 198 matching lines @@
   // is enabled).
   if (event->type() == ui::ET_SCROLL && event->y_offset() < 0)
     MaybeOpenCustomLauncherPage();
 }
 
 TileItemView* StartPageView::GetTileItemView(size_t index) {
   return tiles_container_->GetTileItemView(index);
 }
 
 }  // namespace app_list