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#include <QPaintEvent>
#include <QPainter>
#include <QStyleOption>
#include "../Config.h"
#include "../Utils.h"
#include "../ui/Avatar.h"
#include "../ui/DropShadow.h"
#include "ChatPage.h"
#include "PopupItem.h"
#include "SuggestionsPopup.h"
SuggestionsPopup::SuggestionsPopup(QWidget *parent)
: QWidget(parent)
{
setAttribute(Qt::WA_ShowWithoutActivating, true);
setWindowFlags(Qt::ToolTip | Qt::NoDropShadowWindowHint);
layout_ = new QVBoxLayout(this);
layout_->setMargin(0);
layout_->setSpacing(0);
}
QString
SuggestionsPopup::displayName(QString room, QString user)
{
return cache::displayName(room, user);
}
void
SuggestionsPopup::addRooms(const std::vector<RoomSearchResult> &rooms)
{
if (rooms.empty()) {
hide();
return;
}
const int layoutCount = (int)layout_->count();
const int roomCount = (int)rooms.size();
// Remove the extra widgets from the layout.
if (roomCount < layoutCount)
removeLayoutItemsAfter(roomCount - 1);
for (int i = 0; i < roomCount; ++i) {
auto item = layout_->itemAt(i);
// Create a new widget if there isn't already one in that
// layout position.
if (!item) {
auto room = new RoomItem(this, rooms.at(i));
connect(room, &RoomItem::clicked, this, &SuggestionsPopup::itemSelected);
layout_->addWidget(room);
} else {
// Update the current widget with the new data.
auto room = qobject_cast<RoomItem *>(item->widget());
if (room)
room->updateItem(rooms.at(i));
}
}
resetSelection();
adjustSize();
resize(geometry().width(), 40 * (int)rooms.size());
selectNextSuggestion();
}
void
SuggestionsPopup::hoverSelection()
{
resetHovering();
setHovering(selectedItem_);
update();
}
void
SuggestionsPopup::selectHoveredSuggestion()
{
const auto item = layout_->itemAt(selectedItem_);
if (!item)
return;
const auto &widget = qobject_cast<RoomItem *>(item->widget());
emit itemSelected(displayName(ChatPage::instance()->currentRoom(), widget->selectedText()));
resetSelection();
}
void
SuggestionsPopup::selectNextSuggestion()
{
selectedItem_++;
if (selectedItem_ >= layout_->count())
selectFirstItem();
hoverSelection();
}
void
SuggestionsPopup::selectPreviousSuggestion()
{
selectedItem_--;
if (selectedItem_ < 0)
selectLastItem();
hoverSelection();
}
void
SuggestionsPopup::resetHovering()
{
for (int i = 0; i < layout_->count(); ++i) {
const auto item = qobject_cast<PopupItem *>(layout_->itemAt(i)->widget());
if (item)
item->setHovering(false);
}
}
void
SuggestionsPopup::setHovering(int pos)
{
const auto &item = layout_->itemAt(pos);
const auto &widget = qobject_cast<PopupItem *>(item->widget());
if (widget)
widget->setHovering(true);
}
void
SuggestionsPopup::paintEvent(QPaintEvent *)
{
QStyleOption opt;
opt.init(this);
QPainter p(this);
style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
}
void
SuggestionsPopup::selectLastItem()
{
selectedItem_ = layout_->count() - 1;
}
void
SuggestionsPopup::removeLayoutItemsAfter(size_t startingPos)
{
size_t posToRemove = layout_->count() - 1;
QLayoutItem *item;
while (startingPos <= posToRemove &&
(item = layout_->takeAt((int)posToRemove)) != nullptr) {
delete item->widget();
delete item;
posToRemove = layout_->count() - 1;
}
}
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