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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/app_list/views/app_list_main_view.h"
#include <algorithm>
#include <memory>
#include <string>
#include <utility>
#include "ash/app_list/app_list_metrics.h"
#include "ash/app_list/app_list_model_provider.h"
#include "ash/app_list/app_list_util.h"
#include "ash/app_list/app_list_view_delegate.h"
#include "ash/app_list/model/app_list_folder_item.h"
#include "ash/app_list/model/app_list_item.h"
#include "ash/app_list/views/app_list_folder_view.h"
#include "ash/app_list/views/app_list_item_view.h"
#include "ash/app_list/views/app_list_search_view.h"
#include "ash/app_list/views/app_list_view.h"
#include "ash/app_list/views/apps_container_view.h"
#include "ash/app_list/views/apps_grid_view.h"
#include "ash/app_list/views/contents_view.h"
#include "ash/app_list/views/paged_apps_grid_view.h"
#include "ash/app_list/views/search_box_view.h"
#include "ash/app_list/views/search_result_base_view.h"
#include "ash/app_list/views/search_result_page_view.h"
#include "ash/constants/ash_features.h"
#include "ash/public/cpp/app_list/app_list_features.h"
#include "ash/public/cpp/pagination/pagination_model.h"
#include "ash/search_box/search_box_view_base.h"
#include "base/files/file_path.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/strings/string_util.h"
#include "ui/aura/window.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/compositor/layer.h"
#include "ui/gfx/geometry/insets.h"
#include "ui/views/border.h"
#include "ui/views/controls/button/button.h"
#include "ui/views/controls/textfield/textfield.h"
#include "ui/views/layout/fill_layout.h"
#include "ui/views/widget/widget.h"
#include "ui/wm/public/activation_client.h"
namespace ash {
////////////////////////////////////////////////////////////////////////////////
// AppListMainView:
AppListMainView::AppListMainView(AppListViewDelegate* delegate,
AppListView* app_list_view)
: delegate_(delegate), app_list_view_(app_list_view) {
// We need a layer to apply transform to in small display so that the apps
// grid fits in the display.
SetPaintToLayer();
layer()->SetFillsBoundsOpaquely(false);
}
AppListMainView::~AppListMainView() = default;
void AppListMainView::Init(int initial_apps_page,
SearchBoxView* search_box_view) {
search_box_view_ = search_box_view;
AddContentsViews();
// Switch the apps grid view to the specified page.
PaginationModel* pagination_model = GetAppsPaginationModel();
if (pagination_model->is_valid_page(initial_apps_page))
pagination_model->SelectPage(initial_apps_page, false);
}
void AppListMainView::AddContentsViews() {
DCHECK(search_box_view_);
auto contents_view = std::make_unique<ContentsView>(app_list_view_);
contents_view->Init();
contents_view->SetPaintToLayer(ui::LAYER_NOT_DRAWN);
contents_view->layer()->SetMasksToBounds(true);
contents_view_ = AddChildView(std::move(contents_view));
}
void AppListMainView::ShowAppListWhenReady() {
// After switching to tablet mode, other app windows may be active. Show the
// app list without activating it to avoid breaking other windows' state.
const aura::Window* active_window =
wm::GetActivationClient(
app_list_view_->GetWidget()->GetNativeView()->GetRootWindow())
->GetActiveWindow();
if (active_window)
GetWidget()->ShowInactive();
else
GetWidget()->Show();
}
void AppListMainView::SetDragAndDropHostOfCurrentAppList(
ApplicationDragAndDropHost* drag_and_drop_host) {
contents_view_->SetDragAndDropHostOfCurrentAppList(drag_and_drop_host);
}
PaginationModel* AppListMainView::GetAppsPaginationModel() {
return contents_view_->apps_container_view()
->apps_grid_view()
->pagination_model();
}
void AppListMainView::Layout() {
gfx::Rect rect = GetContentsBounds();
if (!rect.IsEmpty()) {
contents_view_->SetBoundsRect(rect);
}
}
void AppListMainView::QueryChanged(const std::u16string& trimmed_query,
bool initiated_by_user) {
app_list_view_->SetStateFromSearchBoxView(trimmed_query.empty(),
initiated_by_user);
contents_view_->ShowSearchResults(search_box_view_->is_search_box_active() ||
!trimmed_query.empty());
contents_view_->search_result_page_view()->UpdateForNewSearch();
}
void AppListMainView::ActiveChanged(SearchBoxViewBase* sender) {
// Do not update views on closing.
if (app_list_view_->app_list_state() == AppListViewState::kClosed) {
return;
}
if (search_box_view_->is_search_box_active()) {
// Show zero state suggestions when search box is activated with an empty
// query.
const bool is_query_empty = sender->IsSearchBoxTrimmedQueryEmpty();
app_list_view_->SetStateFromSearchBoxView(
is_query_empty, true /*triggered_by_contents_change*/);
contents_view_->ShowSearchResults(true);
} else {
// Close the search results page if the search box is inactive.
contents_view_->ShowSearchResults(false);
}
}
void AppListMainView::OnSearchBoxKeyEvent(ui::KeyEvent* event) {
app_list_view_->RedirectKeyEventToSearchBox(event);
if (!IsUnhandledUpDownKeyEvent(*event)) {
return;
}
// Handles arrow key events from the search box while the search box is
// inactive. This covers both folder traversal and apps grid traversal. Search
// result traversal is handled in |HandleKeyEvent|
AppListPage* page =
contents_view_->GetPageView(contents_view_->GetActivePageIndex());
views::View* next_view = nullptr;
if (event->key_code() == ui::VKEY_UP) {
next_view = page->GetLastFocusableView();
} else {
next_view = page->GetFirstFocusableView();
}
if (next_view) {
next_view->RequestFocus();
}
event->SetHandled();
}
bool AppListMainView::CanSelectSearchResults() {
// If there's a result, keyboard selection is allowed.
return !!contents_view_->search_result_page_view()->CanSelectSearchResults();
}
bool AppListMainView::HandleFocusMoveAboveSearchResults(
const ui::KeyEvent& key_event) {
return contents_view_->search_result_page_view()
->search_view()
->OverrideKeyNavigationAboveSearchResults(key_event);
}
void AppListMainView::AssistantButtonPressed() {
delegate_->StartAssistant();
}
void AppListMainView::CloseButtonPressed() {
// Deactivate the search box.
search_box_view_->SetSearchBoxActive(false, ui::ET_UNKNOWN);
search_box_view_->ClearSearch();
}
BEGIN_METADATA(AppListMainView)
END_METADATA
} // namespace ash
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