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https://github.com/LadybirdBrowser/ladybird
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e8a1b89447
The drag-and-drop processing model allows for users to drag around either elements within the DOM or objects completely outside the DOM. This drag event can either end without action (via cancellation or user input), or in a drop event, where the dragged object is dropped onto another element within the DOM. The processing model is rather large. This implements enough of it to allow the UI process to specifically handle dragging objects outside of the DOM onto the DOM. For example, dragging an image from the OS file manager onto a file-upload input element. This does not implement the ability to drag DOM elements.
104 lines
2.3 KiB
C++
104 lines
2.3 KiB
C++
/*
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* Copyright (c) 2024, Tim Flynn <trflynn89@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/OwnPtr.h>
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#include <AK/Variant.h>
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#include <AK/Vector.h>
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#include <LibGfx/Point.h>
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#include <LibIPC/Forward.h>
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#include <LibWeb/HTML/SelectedFile.h>
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#include <LibWeb/PixelUnits.h>
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#include <LibWeb/UIEvents/KeyCode.h>
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#include <LibWeb/UIEvents/MouseButton.h>
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namespace Web {
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struct ChromeInputData {
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virtual ~ChromeInputData() = default;
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};
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struct KeyEvent {
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enum class Type {
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KeyDown,
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KeyUp,
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};
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KeyEvent clone_without_chrome_data() const;
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Type type;
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UIEvents::KeyCode key { UIEvents::KeyCode::Key_Invalid };
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UIEvents::KeyModifier modifiers { UIEvents::KeyModifier::Mod_None };
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u32 code_point { 0 };
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OwnPtr<ChromeInputData> chrome_data;
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};
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struct MouseEvent {
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enum class Type {
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MouseDown,
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MouseUp,
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MouseMove,
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MouseWheel,
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DoubleClick,
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};
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MouseEvent clone_without_chrome_data() const;
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Type type;
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Web::DevicePixelPoint position;
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Web::DevicePixelPoint screen_position;
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UIEvents::MouseButton button { UIEvents::MouseButton::None };
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UIEvents::MouseButton buttons { UIEvents::MouseButton::None };
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UIEvents::KeyModifier modifiers { UIEvents::KeyModifier::Mod_None };
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int wheel_delta_x { 0 };
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int wheel_delta_y { 0 };
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OwnPtr<ChromeInputData> chrome_data;
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};
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struct DragEvent {
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enum class Type {
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DragStart,
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DragMove,
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DragEnd,
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Drop,
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};
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DragEvent clone_without_chrome_data() const;
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Type type;
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Web::DevicePixelPoint position;
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Web::DevicePixelPoint screen_position;
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UIEvents::MouseButton button { UIEvents::MouseButton::None };
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UIEvents::MouseButton buttons { UIEvents::MouseButton::None };
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UIEvents::KeyModifier modifiers { UIEvents::KeyModifier::Mod_None };
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Vector<HTML::SelectedFile> files;
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OwnPtr<ChromeInputData> chrome_data;
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};
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using InputEvent = Variant<KeyEvent, MouseEvent>;
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}
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namespace IPC {
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template<>
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ErrorOr<void> encode(Encoder&, Web::KeyEvent const&);
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template<>
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ErrorOr<Web::KeyEvent> decode(Decoder&);
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template<>
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ErrorOr<void> encode(Encoder&, Web::MouseEvent const&);
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template<>
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ErrorOr<Web::MouseEvent> decode(Decoder&);
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}
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