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// 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 <memory>
#include <string>
#include <utility>
#include <vector>
#include "ash/common/session/session_state_delegate.h"
#include "ash/common/wm_shell.h"
#include "ash/shell/example_factory.h"
#include "ash/shell/toplevel_window.h"
#include "base/callback.h"
#include "base/files/file_path.h"
#include "base/i18n/case_conversion.h"
#include "base/i18n/string_search.h"
#include "base/memory/ptr_util.h"
#include "base/memory/scoped_vector.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "ui/app_list/app_list_item.h"
#include "ui/app_list/app_list_item_list.h"
#include "ui/app_list/app_list_model.h"
#include "ui/app_list/app_list_view_delegate.h"
#include "ui/app_list/search_box_model.h"
#include "ui/app_list/search_result.h"
#include "ui/app_list/speech_ui_model.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/font_list.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/views/examples/example_base.h"
#include "ui/views/examples/examples_window.h"
namespace ash {
namespace shell {
namespace {
// WindowTypeShelfItem is an app item of app list. It carries a window
// launch type and launches corresponding example window when activated.
class WindowTypeShelfItem : public app_list::AppListItem {
public:
enum Type {
TOPLEVEL_WINDOW = 0,
NON_RESIZABLE_WINDOW,
LOCK_SCREEN,
WIDGETS_WINDOW,
EXAMPLES_WINDOW,
LAST_TYPE,
};
WindowTypeShelfItem(const std::string& id, Type type);
~WindowTypeShelfItem() override;
static gfx::ImageSkia GetIcon(Type type) {
static const SkColor kColors[] = {
SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorYELLOW, SK_ColorCYAN,
};
const int kIconSize = 128;
SkBitmap icon;
icon.allocN32Pixels(kIconSize, kIconSize);
icon.eraseColor(kColors[static_cast<int>(type) % arraysize(kColors)]);
return gfx::ImageSkia::CreateFrom1xBitmap(icon);
}
// The text below is not localized as this is an example code.
static std::string GetTitle(Type type) {
switch (type) {
case TOPLEVEL_WINDOW:
return "Create Window";
case NON_RESIZABLE_WINDOW:
return "Create Non-Resizable Window";
case LOCK_SCREEN:
return "Lock Screen";
case WIDGETS_WINDOW:
return "Show Example Widgets";
case EXAMPLES_WINDOW:
return "Open Views Examples Window";
default:
return "Unknown window type.";
}
}
// The text below is not localized as this is an example code.
static std::string GetDetails(Type type) {
// Assigns details only to some types so that we see both one-line
// and two-line results.
switch (type) {
case WIDGETS_WINDOW:
return "Creates a window to show example widgets";
case EXAMPLES_WINDOW:
return "Creates a window to show views example.";
default:
return std::string();
}
}
static void ActivateItem(Type type, int event_flags) {
switch (type) {
case TOPLEVEL_WINDOW: {
ToplevelWindow::CreateParams params;
params.can_resize = true;
ToplevelWindow::CreateToplevelWindow(params);
break;
}
case NON_RESIZABLE_WINDOW: {
ToplevelWindow::CreateToplevelWindow(ToplevelWindow::CreateParams());
break;
}
case LOCK_SCREEN: {
WmShell::Get()->GetSessionStateDelegate()->LockScreen();
break;
}
case WIDGETS_WINDOW: {
CreateWidgetsWindow();
break;
}
case EXAMPLES_WINDOW: {
views::examples::ShowExamplesWindow(
views::examples::QUIT_ON_CLOSE, NULL,
std::unique_ptr<ScopedVector<views::examples::ExampleBase>>());
break;
}
default:
break;
}
}
// AppListItem
void Activate(int event_flags) override { ActivateItem(type_, event_flags); }
private:
Type type_;
DISALLOW_COPY_AND_ASSIGN(WindowTypeShelfItem);
};
WindowTypeShelfItem::WindowTypeShelfItem(const std::string& id, Type type)
: app_list::AppListItem(id), type_(type) {
std::string title(GetTitle(type));
SetIcon(GetIcon(type));
SetName(title);
}
WindowTypeShelfItem::~WindowTypeShelfItem() {}
// ExampleSearchResult is an app list search result. It provides what icon to
// show, what should title and details text look like. It also carries the
// matching window launch type so that AppListViewDelegate knows how to open
// it.
class ExampleSearchResult : public app_list::SearchResult {
public:
ExampleSearchResult(WindowTypeShelfItem::Type type,
const base::string16& query)
: type_(type) {
SetIcon(WindowTypeShelfItem::GetIcon(type_));
base::string16 title =
base::UTF8ToUTF16(WindowTypeShelfItem::GetTitle(type_));
set_title(title);
Tags title_tags;
const size_t match_len = query.length();
// Highlight matching parts in title with bold.
// Note the following is not a proper way to handle i18n string.
title = base::i18n::ToLower(title);
size_t match_start = title.find(query);
while (match_start != base::string16::npos) {
title_tags.push_back(
Tag(Tag::MATCH, match_start, match_start + match_len));
match_start = title.find(query, match_start + match_len);
}
set_title_tags(title_tags);
base::string16 details =
base::UTF8ToUTF16(WindowTypeShelfItem::GetDetails(type_));
set_details(details);
Tags details_tags;
details_tags.push_back(Tag(Tag::DIM, 0, details.length()));
set_details_tags(details_tags);
}
WindowTypeShelfItem::Type type() const { return type_; }
// app_list::SearchResult:
std::unique_ptr<SearchResult> Duplicate() const override {
return std::unique_ptr<SearchResult>();
}
private:
WindowTypeShelfItem::Type type_;
DISALLOW_COPY_AND_ASSIGN(ExampleSearchResult);
};
class ExampleAppListViewDelegate : public app_list::AppListViewDelegate {
public:
ExampleAppListViewDelegate() : model_(new app_list::AppListModel) {
PopulateApps();
DecorateSearchBox(model_->search_box());
}
private:
void PopulateApps() {
for (int i = 0; i < static_cast<int>(WindowTypeShelfItem::LAST_TYPE); ++i) {
WindowTypeShelfItem::Type type =
static_cast<WindowTypeShelfItem::Type>(i);
std::string id = base::IntToString(i);
std::unique_ptr<WindowTypeShelfItem> shelf_item(
new WindowTypeShelfItem(id, type));
model_->AddItem(std::move(shelf_item));
}
}
void DecorateSearchBox(app_list::SearchBoxModel* search_box_model) {
search_box_model->SetHintText(base::ASCIIToUTF16("Type to search..."));
}
// Overridden from app_list::AppListViewDelegate:
bool ForceNativeDesktop() const override { return false; }
void SetProfileByPath(const base::FilePath& profile_path) override {
// Nothing needs to be done.
}
const Users& GetUsers() const override { return users_; }
app_list::AppListModel* GetModel() override { return model_.get(); }
app_list::SpeechUIModel* GetSpeechUI() override { return &speech_ui_; }
void OpenSearchResult(app_list::SearchResult* result,
bool auto_launch,
int event_flags) override {
const ExampleSearchResult* example_result =
static_cast<const ExampleSearchResult*>(result);
WindowTypeShelfItem::ActivateItem(example_result->type(), event_flags);
}
void InvokeSearchResultAction(app_list::SearchResult* result,
int action_index,
int event_flags) override {
NOTIMPLEMENTED();
}
base::TimeDelta GetAutoLaunchTimeout() override { return base::TimeDelta(); }
void AutoLaunchCanceled() override {}
void StartSearch() override {
base::string16 query;
base::TrimWhitespace(model_->search_box()->text(), base::TRIM_ALL, &query);
query = base::i18n::ToLower(query);
model_->results()->DeleteAll();
if (query.empty())
return;
for (int i = 0; i < static_cast<int>(WindowTypeShelfItem::LAST_TYPE); ++i) {
WindowTypeShelfItem::Type type =
static_cast<WindowTypeShelfItem::Type>(i);
base::string16 title =
base::UTF8ToUTF16(WindowTypeShelfItem::GetTitle(type));
if (base::i18n::StringSearchIgnoringCaseAndAccents(query, title, NULL,
NULL)) {
model_->results()->Add(
base::MakeUnique<ExampleSearchResult>(type, query));
}
}
}
void StopSearch() override {
// Nothing needs to be done.
}
void ViewInitialized() override {
// Nothing needs to be done.
}
void Dismiss() override {
DCHECK(WmShell::HasInstance());
WmShell::Get()->DismissAppList();
}
void ViewClosing() override {
// Nothing needs to be done.
}
void OpenHelp() override {
// Nothing needs to be done.
}
void OpenFeedback() override {
// Nothing needs to be done.
}
void StartSpeechRecognition() override { NOTIMPLEMENTED(); }
void StopSpeechRecognition() override { NOTIMPLEMENTED(); }
void ShowForProfileByPath(const base::FilePath& profile_path) override {
// Nothing needs to be done.
}
views::View* CreateStartPageWebView(const gfx::Size& size) override {
return NULL;
}
std::vector<views::View*> CreateCustomPageWebViews(
const gfx::Size& size) override {
return std::vector<views::View*>();
}
void CustomLauncherPageAnimationChanged(double progress) override {}
void CustomLauncherPagePopSubpage() override {}
bool IsSpeechRecognitionEnabled() override { return false; }
std::unique_ptr<app_list::AppListModel> model_;
app_list::SpeechUIModel speech_ui_;
Users users_;
DISALLOW_COPY_AND_ASSIGN(ExampleAppListViewDelegate);
};
} // namespace
app_list::AppListViewDelegate* CreateAppListViewDelegate() {
return new ExampleAppListViewDelegate;
}
} // namespace shell
} // namespace ash