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// Copyright 2013 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/apps_container_view.h"
#include <algorithm>
#include <vector>
#include "base/command_line.h"
#include "ui/app_list/app_list_constants.h"
#include "ui/app_list/app_list_folder_item.h"
#include "ui/app_list/app_list_switches.h"
#include "ui/app_list/views/app_list_folder_view.h"
#include "ui/app_list/views/app_list_item_view.h"
#include "ui/app_list/views/app_list_main_view.h"
#include "ui/app_list/views/apps_grid_view.h"
#include "ui/app_list/views/folder_background_view.h"
#include "ui/events/event.h"
namespace app_list {
AppsContainerView::AppsContainerView(AppListMainView* app_list_main_view,
AppListModel* model)
: show_state_(SHOW_NONE), top_icon_animation_pending_count_(0) {
apps_grid_view_ = new AppsGridView(app_list_main_view);
int cols;
int rows;
if (switches::IsExperimentalAppListEnabled()) {
cols = kExperimentalPreferredCols;
rows = kExperimentalPreferredRows;
} else if (app_list_main_view->ShouldCenterWindow()) {
cols = kCenteredPreferredCols;
rows = kCenteredPreferredRows;
} else {
cols = kPreferredCols;
rows = kPreferredRows;
}
apps_grid_view_->SetLayout(cols, rows);
AddChildView(apps_grid_view_);
folder_background_view_ = new FolderBackgroundView();
AddChildView(folder_background_view_);
app_list_folder_view_ =
new AppListFolderView(this, model, app_list_main_view);
// The folder view is initially hidden.
app_list_folder_view_->SetVisible(false);
AddChildView(app_list_folder_view_);
apps_grid_view_->SetModel(model);
apps_grid_view_->SetItemList(model->top_level_item_list());
SetShowState(SHOW_APPS, false);
}
AppsContainerView::~AppsContainerView() {
}
void AppsContainerView::ShowActiveFolder(AppListFolderItem* folder_item) {
// Prevent new animations from starting if there are currently animations
// pending. This fixes crbug.com/357099.
if (top_icon_animation_pending_count_)
return;
app_list_folder_view_->SetAppListFolderItem(folder_item);
SetShowState(SHOW_ACTIVE_FOLDER, false);
CreateViewsForFolderTopItemsAnimation(folder_item, true);
apps_grid_view_->ClearAnySelectedView();
}
void AppsContainerView::ShowApps(AppListFolderItem* folder_item) {
if (top_icon_animation_pending_count_)
return;
PrepareToShowApps(folder_item);
SetShowState(SHOW_APPS, true);
}
void AppsContainerView::ResetForShowApps() {
SetShowState(SHOW_APPS, false);
folder_background_view_->UpdateFolderContainerBubble(
FolderBackgroundView::NO_BUBBLE);
}
void AppsContainerView::SetDragAndDropHostOfCurrentAppList(
ApplicationDragAndDropHost* drag_and_drop_host) {
apps_grid_view()->SetDragAndDropHostOfCurrentAppList(drag_and_drop_host);
app_list_folder_view()->items_grid_view()->
SetDragAndDropHostOfCurrentAppList(drag_and_drop_host);
}
void AppsContainerView::ReparentFolderItemTransit(
AppListFolderItem* folder_item) {
if (top_icon_animation_pending_count_)
return;
PrepareToShowApps(folder_item);
SetShowState(SHOW_ITEM_REPARENT, false);
}
bool AppsContainerView::IsInFolderView() const {
return show_state_ == SHOW_ACTIVE_FOLDER;
}
void AppsContainerView::ReparentDragEnded() {
DCHECK_EQ(SHOW_ITEM_REPARENT, show_state_);
show_state_ = AppsContainerView::SHOW_APPS;
}
gfx::Size AppsContainerView::GetPreferredSize() const {
const gfx::Size grid_size = apps_grid_view_->GetPreferredSize();
const gfx::Size folder_view_size = app_list_folder_view_->GetPreferredSize();
int width = std::max(grid_size.width(), folder_view_size.width());
int height = std::max(grid_size.height(), folder_view_size.height());
return gfx::Size(width, height);
}
void AppsContainerView::Layout() {
gfx::Rect rect(GetContentsBounds());
if (rect.IsEmpty())
return;
switch (show_state_) {
case SHOW_APPS:
apps_grid_view_->SetBoundsRect(rect);
break;
case SHOW_ACTIVE_FOLDER:
folder_background_view_->SetBoundsRect(rect);
app_list_folder_view_->SetBoundsRect(rect);
break;
case SHOW_ITEM_REPARENT:
break;
default:
NOTREACHED();
}
}
bool AppsContainerView::OnKeyPressed(const ui::KeyEvent& event) {
if (show_state_ == SHOW_APPS)
return apps_grid_view_->OnKeyPressed(event);
else
return app_list_folder_view_->OnKeyPressed(event);
}
void AppsContainerView::OnWillBeShown() {
apps_grid_view()->ClearAnySelectedView();
app_list_folder_view()->items_grid_view()->ClearAnySelectedView();
}
gfx::Rect AppsContainerView::GetPageBoundsForState(
AppListModel::State state) const {
gfx::Rect onscreen_bounds = GetDefaultContentsBounds();
if (state == AppListModel::STATE_APPS)
return onscreen_bounds;
return GetBelowContentsOffscreenBounds(onscreen_bounds.size());
}
void AppsContainerView::OnTopIconAnimationsComplete() {
--top_icon_animation_pending_count_;
if (!top_icon_animation_pending_count_) {
// Clean up the transitional views used for top item icon animation.
top_icon_views_.clear();
// Show the folder icon when closing the folder.
if ((show_state_ == SHOW_APPS || show_state_ == SHOW_ITEM_REPARENT) &&
apps_grid_view_->activated_folder_item_view()) {
apps_grid_view_->activated_folder_item_view()->SetVisible(true);
}
}
}
void AppsContainerView::SetShowState(ShowState show_state,
bool show_apps_with_animation) {
if (show_state_ == show_state)
return;
show_state_ = show_state;
switch (show_state_) {
case SHOW_APPS:
folder_background_view_->SetVisible(false);
if (show_apps_with_animation) {
app_list_folder_view_->ScheduleShowHideAnimation(false, false);
apps_grid_view_->ScheduleShowHideAnimation(true);
} else {
app_list_folder_view_->HideViewImmediately();
apps_grid_view_->ResetForShowApps();
}
break;
case SHOW_ACTIVE_FOLDER:
folder_background_view_->SetVisible(true);
apps_grid_view_->ScheduleShowHideAnimation(false);
app_list_folder_view_->ScheduleShowHideAnimation(true, false);
break;
case SHOW_ITEM_REPARENT:
folder_background_view_->SetVisible(false);
folder_background_view_->UpdateFolderContainerBubble(
FolderBackgroundView::NO_BUBBLE);
app_list_folder_view_->ScheduleShowHideAnimation(false, true);
apps_grid_view_->ScheduleShowHideAnimation(true);
break;
default:
NOTREACHED();
}
app_list_folder_view_->SetBackButtonLabel(IsInFolderView());
Layout();
}
std::vector<gfx::Rect> AppsContainerView::GetTopItemIconBoundsInActiveFolder() {
// Get the active folder's icon bounds relative to AppsContainerView.
AppListItemView* folder_item_view =
apps_grid_view_->activated_folder_item_view();
gfx::Rect to_grid_view = folder_item_view->ConvertRectToParent(
folder_item_view->GetIconBounds());
gfx::Rect to_container = apps_grid_view_->ConvertRectToParent(to_grid_view);
return FolderImage::GetTopIconsBounds(to_container);
}
void AppsContainerView::CreateViewsForFolderTopItemsAnimation(
AppListFolderItem* active_folder,
bool open_folder) {
top_icon_views_.clear();
std::vector<gfx::Rect> top_items_bounds =
GetTopItemIconBoundsInActiveFolder();
top_icon_animation_pending_count_ =
std::min(kNumFolderTopItems, active_folder->item_list()->item_count());
for (size_t i = 0; i < top_icon_animation_pending_count_; ++i) {
if (active_folder->GetTopIcon(i).isNull())
continue;
TopIconAnimationView* icon_view = new TopIconAnimationView(
active_folder->GetTopIcon(i), top_items_bounds[i], open_folder);
icon_view->AddObserver(this);
top_icon_views_.push_back(icon_view);
// Add the transitional views into child views, and set its bounds to the
// same location of the item in the folder list view.
AddChildView(top_icon_views_[i]);
top_icon_views_[i]->SetBoundsRect(
app_list_folder_view_->ConvertRectToParent(
app_list_folder_view_->GetItemIconBoundsAt(i)));
static_cast<TopIconAnimationView*>(top_icon_views_[i])->TransformView();
}
}
void AppsContainerView::PrepareToShowApps(AppListFolderItem* folder_item) {
if (folder_item)
CreateViewsForFolderTopItemsAnimation(folder_item, false);
// Hide the active folder item until the animation completes.
if (apps_grid_view_->activated_folder_item_view())
apps_grid_view_->activated_folder_item_view()->SetVisible(false);
}
} // namespace app_list
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