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Clementine-audio-player-Mac.../src/globalsearch/globalsearchview.cpp

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/* This file is part of Clementine.
Copyright 2012, David Sansome <me@davidsansome.com>
Clementine is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Clementine is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#include "globalsearchview.h"
#include <QMenu>
#include <QSortFilterProxyModel>
#include <QStandardItem>
#include <QTimer>
#include <functional>
#include "globalsearch.h"
#include "globalsearchitemdelegate.h"
#include "globalsearchmodel.h"
#include "globalsearchsortmodel.h"
#include "searchprovider.h"
#include "searchproviderstatuswidget.h"
#include "suggestionwidget.h"
#include "ui_globalsearchview.h"
#include "core/application.h"
#include "core/logging.h"
#include "core/mimedata.h"
#include "core/timeconstants.h"
#include "library/libraryfilterwidget.h"
#include "library/librarymodel.h"
#include "library/groupbydialog.h"
using std::placeholders::_1;
using std::placeholders::_2;
const int GlobalSearchView::kSwapModelsTimeoutMsec = 250;
const int GlobalSearchView::kMaxSuggestions = 10;
const int GlobalSearchView::kUpdateSuggestionsTimeoutMsec = 60 * kMsecPerSec;
GlobalSearchView::GlobalSearchView(Application* app, QWidget* parent)
: QWidget(parent),
app_(app),
engine_(app_->global_search()),
ui_(new Ui_GlobalSearchView),
context_menu_(nullptr),
last_search_id_(0),
front_model_(new GlobalSearchModel(engine_, this)),
back_model_(new GlobalSearchModel(engine_, this)),
current_model_(front_model_),
front_proxy_(new GlobalSearchSortModel(this)),
back_proxy_(new GlobalSearchSortModel(this)),
current_proxy_(front_proxy_),
swap_models_timer_(new QTimer(this)),
update_suggestions_timer_(new QTimer(this)),
search_icon_(IconLoader::Load("search")),
warning_icon_(IconLoader::Load("dialog-warning")),
show_providers_(true),
show_suggestions_(true) {
ui_->setupUi(this);
front_model_->set_proxy(front_proxy_);
back_model_->set_proxy(back_proxy_);
ui_->search->installEventFilter(this);
ui_->results_stack->installEventFilter(this);
ui_->settings->setIcon(IconLoader::Load("configure"));
// Must be a queued connection to ensure the GlobalSearch handles it first.
connect(app_, SIGNAL(SettingsChanged()), SLOT(ReloadSettings()),
Qt::QueuedConnection);
connect(ui_->search, SIGNAL(textChanged(QString)), SLOT(TextEdited(QString)));
connect(ui_->results, SIGNAL(AddToPlaylistSignal(QMimeData*)),
SIGNAL(AddToPlaylist(QMimeData*)));
connect(ui_->results, SIGNAL(FocusOnFilterSignal(QKeyEvent*)),
SLOT(FocusOnFilter(QKeyEvent*)));
// Set the appearance of the results list
ui_->results->setItemDelegate(new GlobalSearchItemDelegate(this));
ui_->results->setAttribute(Qt::WA_MacShowFocusRect, false);
ui_->results->setStyleSheet("QTreeView::item{padding-top:1px;}");
// Show the help page initially
ui_->results_stack->setCurrentWidget(ui_->help_page);
ui_->help_frame->setBackgroundRole(QPalette::Base);
QVBoxLayout* enabled_layout = new QVBoxLayout(ui_->enabled_list);
QVBoxLayout* disabled_layout = new QVBoxLayout(ui_->disabled_list);
QVBoxLayout* suggestions_layout = new QVBoxLayout(ui_->suggestions_list);
enabled_layout->setContentsMargins(16, 0, 16, 6);
disabled_layout->setContentsMargins(16, 0, 16, 32);
suggestions_layout->setContentsMargins(16, 0, 16, 6);
// Set the colour of the help text to the disabled text colour
QPalette help_palette = ui_->help_text->palette();
const QColor help_color =
help_palette.color(QPalette::Disabled, QPalette::Text);
help_palette.setColor(QPalette::Normal, QPalette::Text, help_color);
help_palette.setColor(QPalette::Inactive, QPalette::Text, help_color);
ui_->help_text->setPalette(help_palette);
// Create suggestion widgets
for (int i = 0; i < kMaxSuggestions; ++i) {
SuggestionWidget* widget = new SuggestionWidget(search_icon_);
connect(widget, SIGNAL(SuggestionClicked(QString)),
SLOT(StartSearch(QString)));
suggestions_layout->addWidget(widget);
suggestion_widgets_ << widget;
}
// Make it bold
QFont help_font = ui_->help_text->font();
help_font.setBold(true);
ui_->help_text->setFont(help_font);
// Set up the sorting proxy model
front_proxy_->setSourceModel(front_model_);
front_proxy_->setDynamicSortFilter(true);
front_proxy_->sort(0);
back_proxy_->setSourceModel(back_model_);
back_proxy_->setDynamicSortFilter(true);
back_proxy_->sort(0);
swap_models_timer_->setSingleShot(true);
swap_models_timer_->setInterval(kSwapModelsTimeoutMsec);
connect(swap_models_timer_, SIGNAL(timeout()), SLOT(SwapModels()));
update_suggestions_timer_->setInterval(kUpdateSuggestionsTimeoutMsec);
connect(update_suggestions_timer_, SIGNAL(timeout()),
SLOT(UpdateSuggestions()));
// Add actions to the settings menu
group_by_actions_ = LibraryFilterWidget::CreateGroupByActions(this);
QMenu* settings_menu = new QMenu(this);
settings_menu->addActions(group_by_actions_->actions());
settings_menu->addSeparator();
settings_menu->addAction(IconLoader::Load("configure"),
tr("Configure global search..."), this,
SLOT(OpenSettingsDialog()));
ui_->settings->setMenu(settings_menu);
connect(group_by_actions_, SIGNAL(triggered(QAction*)),
SLOT(GroupByClicked(QAction*)));
// These have to be queued connections because they may get emitted before
// our call to Search() (or whatever) returns and we add the ID to the map.
connect(engine_, SIGNAL(ResultsAvailable(int, SearchProvider::ResultList)),
SLOT(AddResults(int, SearchProvider::ResultList)),
Qt::QueuedConnection);
connect(engine_, SIGNAL(ArtLoaded(int, QPixmap)),
SLOT(ArtLoaded(int, QPixmap)), Qt::QueuedConnection);
}
GlobalSearchView::~GlobalSearchView() { delete ui_; }
namespace {
bool CompareProvider(const QStringList& provider_order, SearchProvider* left,
SearchProvider* right) {
const int left_index = provider_order.indexOf(left->id());
const int right_index = provider_order.indexOf(right->id());
if (left_index == -1 && right_index == -1) {
// None are in our provider list: compare name instead
return left->name() < right->name();
} else if (left_index == -1) {
// Left provider not in provider list
return false;
} else if (right_index == -1) {
// Right provider not in provider list
return true;
}
return left_index < right_index;
}
}
void GlobalSearchView::ReloadSettings() {
const bool old_show_suggestions = show_suggestions_;
QSettings s;
// Library settings
s.beginGroup(LibraryView::kSettingsGroup);
const bool pretty = s.value("pretty_covers", true).toBool();
front_model_->set_use_pretty_covers(pretty);
back_model_->set_use_pretty_covers(pretty);
s.endGroup();
// Global search settings
s.beginGroup(GlobalSearch::kSettingsGroup);
const QStringList provider_order =
s.value("provider_order", QStringList() << "library").toStringList();
front_model_->set_provider_order(provider_order);
back_model_->set_provider_order(provider_order);
show_providers_ = s.value("show_providers", true).toBool();
show_suggestions_ = s.value("show_suggestions", true).toBool();
SetGroupBy(LibraryModel::Grouping(
LibraryModel::GroupBy(
s.value("group_by1", int(LibraryModel::GroupBy_Artist)).toInt()),
LibraryModel::GroupBy(
s.value("group_by2", int(LibraryModel::GroupBy_Album)).toInt()),
LibraryModel::GroupBy(
s.value("group_by3", int(LibraryModel::GroupBy_None)).toInt())));
s.endGroup();
// Delete any old status widgets
qDeleteAll(provider_status_widgets_);
provider_status_widgets_.clear();
// Toggle visibility of the providers group
ui_->providers_group->setVisible(show_providers_);
if (show_providers_) {
// Sort the list of providers
QList<SearchProvider*> providers = engine_->providers();
qSort(providers.begin(), providers.end(),
std::bind(&CompareProvider, std::cref(provider_order), _1, _2));
bool any_disabled = false;
for (SearchProvider* provider : providers) {
QWidget* parent = ui_->enabled_list;
if (!engine_->is_provider_usable(provider)) {
parent = ui_->disabled_list;
any_disabled = true;
}
SearchProviderStatusWidget* widget =
new SearchProviderStatusWidget(warning_icon_, engine_, provider);
parent->layout()->addWidget(widget);
provider_status_widgets_ << widget;
}
ui_->disabled_label->setVisible(any_disabled);
}
ui_->suggestions_group->setVisible(show_suggestions_);
if (!show_suggestions_) {
update_suggestions_timer_->stop();
}
if (!old_show_suggestions && show_suggestions_) {
UpdateSuggestions();
}
}
void GlobalSearchView::UpdateSuggestions() {
const QStringList suggestions = engine_->GetSuggestions(kMaxSuggestions);
for (int i = 0; i < suggestions.count(); ++i) {
suggestion_widgets_[i]->SetText(suggestions[i]);
suggestion_widgets_[i]->show();
}
for (int i = suggestions.count(); i < kMaxSuggestions; ++i) {
suggestion_widgets_[i]->hide();
}
}
void GlobalSearchView::StartSearch(const QString& query) {
ui_->search->setText(query);
TextEdited(query);
// Swap models immediately
swap_models_timer_->stop();
SwapModels();
}
void GlobalSearchView::TextEdited(const QString& text) {
const QString trimmed(text.trimmed());
// Add results to the back model, switch models after some delay.
back_model_->Clear();
current_model_ = back_model_;
current_proxy_ = back_proxy_;
swap_models_timer_->start();
// Cancel the last search (if any) and start the new one.
engine_->CancelSearch(last_search_id_);
// If text query is empty, don't start a new search
if (trimmed.isEmpty()) {
last_search_id_ = -1;
} else {
last_search_id_ = engine_->SearchAsync(trimmed);
}
}
void GlobalSearchView::AddResults(int id,
const SearchProvider::ResultList& results) {
if (id != last_search_id_ || results.isEmpty()) return;
current_model_->AddResults(results);
}
void GlobalSearchView::SwapModels() {
art_requests_.clear();
qSwap(front_model_, back_model_);
qSwap(front_proxy_, back_proxy_);
ui_->results->setModel(front_proxy_);
if (ui_->search->text().trimmed().isEmpty()) {
ui_->results_stack->setCurrentWidget(ui_->help_page);
} else {
ui_->results_stack->setCurrentWidget(ui_->results_page);
}
}
void GlobalSearchView::LazyLoadArt(const QModelIndex& proxy_index) {
if (!proxy_index.isValid() || proxy_index.model() != front_proxy_) {
return;
}
// Already loading art for this item?
if (proxy_index.data(GlobalSearchModel::Role_LazyLoadingArt).isValid()) {
return;
}
// Should we even load art at all?
if (!app_->library_model()->use_pretty_covers()) {
return;
}
// Is this an album?
const LibraryModel::GroupBy container_type = LibraryModel::GroupBy(
proxy_index.data(LibraryModel::Role_ContainerType).toInt());
if (container_type != LibraryModel::GroupBy_Album &&
container_type != LibraryModel::GroupBy_AlbumArtist &&
container_type != LibraryModel::GroupBy_YearAlbum) {
return;
}
// Mark the item as loading art
const QModelIndex source_index = front_proxy_->mapToSource(proxy_index);
QStandardItem* item = front_model_->itemFromIndex(source_index);
item->setData(true, GlobalSearchModel::Role_LazyLoadingArt);
// Walk down the item's children until we find a track
while (item->rowCount()) {
item = item->child(0);
}
// Get the track's Result
const SearchProvider::Result result =
item->data(GlobalSearchModel::Role_Result)
.value<SearchProvider::Result>();
// Load the art.
int id = engine_->LoadArtAsync(result);
art_requests_[id] = source_index;
}
void GlobalSearchView::ArtLoaded(int id, const QPixmap& pixmap) {
if (!art_requests_.contains(id)) return;
QModelIndex index = art_requests_.take(id);
if (!pixmap.isNull()) {
front_model_->itemFromIndex(index)->setData(pixmap, Qt::DecorationRole);
}
}
MimeData* GlobalSearchView::SelectedMimeData() {
if (!ui_->results->selectionModel()) return nullptr;
// Get all selected model indexes
QModelIndexList indexes = ui_->results->selectionModel()->selectedRows();
if (indexes.isEmpty()) {
// There's nothing selected - take the first thing in the model that isn't
// a divider.
for (int i = 0; i < front_proxy_->rowCount(); ++i) {
QModelIndex index = front_proxy_->index(i, 0);
if (!index.data(LibraryModel::Role_IsDivider).toBool()) {
indexes << index;
ui_->results->setCurrentIndex(index);
break;
}
}
}
// Still got nothing? Give up.
if (indexes.isEmpty()) {
return nullptr;
}
// Get items for these indexes
QList<QStandardItem*> items;
for (const QModelIndex& index : indexes) {
items << (front_model_->itemFromIndex(front_proxy_->mapToSource(index)));
}
// Get a MimeData for these items
return engine_->LoadTracks(front_model_->GetChildResults(items));
}
bool GlobalSearchView::eventFilter(QObject* object, QEvent* event) {
if (object == ui_->search && event->type() == QEvent::KeyRelease) {
if (SearchKeyEvent(static_cast<QKeyEvent*>(event))) {
return true;
}
} else if (object == ui_->results_stack &&
event->type() == QEvent::ContextMenu) {
if (ResultsContextMenuEvent(static_cast<QContextMenuEvent*>(event))) {
return true;
}
}
return QWidget::eventFilter(object, event);
}
bool GlobalSearchView::SearchKeyEvent(QKeyEvent* event) {
switch (event->key()) {
case Qt::Key_Up:
ui_->results->UpAndFocus();
break;
case Qt::Key_Down:
ui_->results->DownAndFocus();
break;
case Qt::Key_Escape:
ui_->search->clear();
break;
case Qt::Key_Return:
AddSelectedToPlaylist();
break;
default:
return false;
}
event->accept();
return true;
}
bool GlobalSearchView::ResultsContextMenuEvent(QContextMenuEvent* event) {
if (!context_menu_) {
context_menu_ = new QMenu(this);
context_actions_ << context_menu_->addAction(
IconLoader::Load("media-playback-start"),
tr("Append to current playlist"), this,
SLOT(AddSelectedToPlaylist()));
context_actions_ << context_menu_->addAction(
IconLoader::Load("media-playback-start"),
tr("Replace current playlist"), this,
SLOT(LoadSelected()));
context_actions_ << context_menu_->addAction(
IconLoader::Load("document-new"),
tr("Open in new playlist"), this,
SLOT(OpenSelectedInNewPlaylist()));
context_menu_->addSeparator();
context_actions_ << context_menu_->addAction(
IconLoader::Load("go-next"), tr("Queue track"),
this, SLOT(AddSelectedToPlaylistEnqueue()));
context_menu_->addSeparator();
context_menu_->addMenu(tr("Group by"))
->addActions(group_by_actions_->actions());
context_menu_->addAction(IconLoader::Load("configure"),
tr("Configure global search..."), this,
SLOT(OpenSettingsDialog()));
}
const bool enable_context_actions =
ui_->results->selectionModel() &&
ui_->results->selectionModel()->hasSelection();
for (QAction* action : context_actions_) {
action->setEnabled(enable_context_actions);
}
context_menu_->popup(event->globalPos());
return true;
}
void GlobalSearchView::AddSelectedToPlaylist() {
emit AddToPlaylist(SelectedMimeData());
}
void GlobalSearchView::LoadSelected() {
MimeData* data = SelectedMimeData();
if (!data) return;
data->clear_first_ = true;
emit AddToPlaylist(data);
}
void GlobalSearchView::AddSelectedToPlaylistEnqueue() {
MimeData* data = SelectedMimeData();
if (!data) return;
data->enqueue_now_ = true;
emit AddToPlaylist(data);
}
void GlobalSearchView::OpenSelectedInNewPlaylist() {
MimeData* data = SelectedMimeData();
if (!data) return;
data->open_in_new_playlist_ = true;
emit AddToPlaylist(data);
}
void GlobalSearchView::showEvent(QShowEvent* e) {
if (show_suggestions_) {
UpdateSuggestions();
update_suggestions_timer_->start();
}
QWidget::showEvent(e);
FocusSearchField();
}
void GlobalSearchView::FocusSearchField() {
ui_->search->setFocus();
ui_->search->selectAll();
}
void GlobalSearchView::hideEvent(QHideEvent* e) {
update_suggestions_timer_->stop();
QWidget::hideEvent(e);
}
void GlobalSearchView::FocusOnFilter(QKeyEvent* event) {
ui_->search->setFocus();
QApplication::sendEvent(ui_->search, event);
}
void GlobalSearchView::OpenSettingsDialog() {
app_->OpenSettingsDialogAtPage(SettingsDialog::Page_GlobalSearch);
}
void GlobalSearchView::GroupByClicked(QAction* action) {
if (action->property("group_by").isNull()) {
if (!group_by_dialog_) {
group_by_dialog_.reset(new GroupByDialog);
connect(group_by_dialog_.data(), SIGNAL(Accepted(LibraryModel::Grouping)),
SLOT(SetGroupBy(LibraryModel::Grouping)));
}
group_by_dialog_->show();
return;
}
SetGroupBy(action->property("group_by").value<LibraryModel::Grouping>());
}
void GlobalSearchView::SetGroupBy(const LibraryModel::Grouping& g) {
// Update the models
front_model_->SetGroupBy(g, true);
back_model_->SetGroupBy(g, false);
// Save the setting
QSettings s;
s.beginGroup(GlobalSearch::kSettingsGroup);
s.setValue("group_by1", int(g.first));
s.setValue("group_by2", int(g.second));
s.setValue("group_by3", int(g.third));
// Make sure the correct action is checked.
for (QAction* action : group_by_actions_->actions()) {
if (action->property("group_by").isNull()) continue;
if (g == action->property("group_by").value<LibraryModel::Grouping>()) {
action->setChecked(true);
return;
}
}
// Check the advanced action
group_by_actions_->actions().last()->setChecked(true);
}
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