blob: 15889b19f48777c4b533df6895576fe12f409190 [file] [log] [blame]
// 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/tile_item_view.h"
#include "base/strings/utf_string_conversions.h"
#include "ui/app_list/app_list_constants.h"
#include "ui/app_list/app_list_item.h"
#include "ui/app_list/app_list_model.h"
#include "ui/app_list/app_list_view_delegate.h"
#include "ui/app_list/search_result.h"
#include "ui/app_list/views/app_list_main_view.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/color_analysis.h"
#include "ui/gfx/color_utils.h"
#include "ui/views/background.h"
#include "ui/views/controls/image_view.h"
#include "ui/views/controls/label.h"
#include "ui/views/layout/box_layout.h"
namespace {
const int kTileSize = 90;
const int kTileHorizontalPadding = 10;
} // namespace
namespace app_list {
TileItemView::TileItemView()
: views::CustomButton(this),
item_(NULL),
icon_(new views::ImageView),
title_(new views::Label) {
views::BoxLayout* layout_manager = new views::BoxLayout(
views::BoxLayout::kVertical, kTileHorizontalPadding, 0, 0);
layout_manager->set_main_axis_alignment(
views::BoxLayout::MAIN_AXIS_ALIGNMENT_CENTER);
SetLayoutManager(layout_manager);
icon_->SetImageSize(gfx::Size(kTileIconSize, kTileIconSize));
ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
title_->SetAutoColorReadabilityEnabled(false);
title_->SetEnabledColor(kGridTitleColor);
title_->set_background(views::Background::CreateSolidBackground(
kLabelBackgroundColor));
title_->SetFontList(rb.GetFontList(kItemTextFontStyle));
title_->SetHorizontalAlignment(gfx::ALIGN_CENTER);
// When |item_| is NULL, the tile is invisible. Calling SetSearchResult with a
// non-NULL item makes the tile visible.
SetVisible(false);
AddChildView(icon_);
AddChildView(title_);
}
TileItemView::~TileItemView() {
if (item_)
item_->RemoveObserver(this);
}
void TileItemView::SetSearchResult(SearchResult* item) {
SetVisible(item != NULL);
SearchResult* old_item = item_;
if (old_item)
old_item->RemoveObserver(this);
item_ = item;
if (!item)
return;
item_->AddObserver(this);
title_->SetText(item_->title());
// Only refresh the icon if it's different from the old one. This prevents
// flickering.
if (old_item == NULL ||
!item->icon().BackedBySameObjectAs(old_item->icon())) {
OnIconChanged();
}
}
gfx::Size TileItemView::GetPreferredSize() const {
return gfx::Size(kTileSize, kTileSize);
}
void TileItemView::ButtonPressed(views::Button* sender,
const ui::Event& event) {
item_->Open(event.flags());
}
void TileItemView::OnIconChanged() {
icon_->SetImage(item_->icon());
}
void TileItemView::OnResultDestroying() {
if (item_)
item_->RemoveObserver(this);
item_ = NULL;
}
} // namespace app_list