79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "ui/rp_widget.h"
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#include "ui/effects/animations.h"
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namespace Storage {
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enum class MimeDataState;
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} // namespace Storage
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class DragArea : public Ui::RpWidget {
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public:
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DragArea(QWidget *parent);
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struct Areas {
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DragArea *document;
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DragArea *photo;
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};
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using CallbackComputeState =
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Fn<Storage::MimeDataState(const QMimeData *data)>;
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static Areas SetupDragAreaToContainer(
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not_null<Ui::RpWidget*> container,
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Fn<bool(not_null<const QMimeData*>)> &&dragEnterFilter = nullptr,
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Fn<void(bool)> &&setAcceptDropsField = nullptr,
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Fn<void()> &&updateControlsGeometry = nullptr,
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CallbackComputeState &&computeState = nullptr);
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void setText(const QString &text, const QString &subtext);
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void otherEnter();
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void otherLeave();
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bool overlaps(const QRect &globalRect);
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void hideFast();
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void setDroppedCallback(Fn<void(const QMimeData *data)> callback) {
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_droppedCallback = std::move(callback);
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}
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protected:
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void paintEvent(QPaintEvent *e) override;
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void mouseMoveEvent(QMouseEvent *e) override;
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void dragMoveEvent(QDragMoveEvent *e) override;
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// These events should be filtered by parent!
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void dragEnterEvent(QDragEnterEvent *e) override;
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void dragLeaveEvent(QDragLeaveEvent *e) override;
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void dropEvent(QDropEvent *e) override;
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private:
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void hideStart();
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void hideFinish();
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void showStart();
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void setIn(bool in);
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void opacityAnimationCallback();
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bool _hiding = false;
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bool _in = false;
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QPixmap _cache;
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Fn<void(const QMimeData *data)> _droppedCallback;
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Ui::Animations::Simple _a_opacity;
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Ui::Animations::Simple _a_in;
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QString _text, _subtext;
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};
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