mirror of
https://github.com/RGBCube/serenity
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82a945fa7e
If a window is currently actively tracking input events (because sent it a MouseDown and haven't sent it a MouseUp yet), we now simply send mouse events to that window right away before doing any other event processing. This makes it much easier to reason about mouse events.
355 lines
12 KiB
C++
355 lines
12 KiB
C++
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@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 "WindowStack.h"
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#include <AK/HashMap.h>
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#include <AK/HashTable.h>
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#include <AK/WeakPtr.h>
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#include <LibCore/ConfigFile.h>
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#include <LibCore/ElapsedTimer.h>
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#include <LibGfx/Color.h>
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#include <LibGfx/DisjointRectSet.h>
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#include <LibGfx/Painter.h>
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#include <LibGfx/Palette.h>
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#include <LibGfx/Rect.h>
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#include <WindowServer/Cursor.h>
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#include <WindowServer/Event.h>
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#include <WindowServer/MenuManager.h>
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#include <WindowServer/Menubar.h>
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#include <WindowServer/WMClientConnection.h>
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#include <WindowServer/WindowSwitcher.h>
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#include <WindowServer/WindowType.h>
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namespace WindowServer {
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const int double_click_speed_max = 900;
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const int double_click_speed_min = 100;
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class Screen;
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class MouseEvent;
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class Window;
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class ClientConnection;
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class WindowSwitcher;
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class Button;
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enum class ResizeDirection {
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None,
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Left,
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UpLeft,
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Up,
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UpRight,
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Right,
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DownRight,
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Down,
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DownLeft
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};
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class WindowManager : public Core::Object {
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C_OBJECT(WindowManager)
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friend class Compositor;
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friend class WindowFrame;
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friend class WindowSwitcher;
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public:
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static WindowManager& the();
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explicit WindowManager(Gfx::PaletteImpl const&);
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virtual ~WindowManager() override;
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Palette palette() const { return Palette(*m_palette); }
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RefPtr<Core::ConfigFile> config() const { return m_config; }
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void reload_config();
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void add_window(Window&);
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void remove_window(Window&);
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void notify_title_changed(Window&);
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void notify_modal_unparented(Window&);
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void notify_rect_changed(Window&, Gfx::IntRect const& oldRect, Gfx::IntRect const& newRect);
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void notify_minimization_state_changed(Window&);
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void notify_opacity_changed(Window&);
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void notify_occlusion_state_changed(Window&);
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void notify_progress_changed(Window&);
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void notify_modified_changed(Window&);
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Gfx::IntRect maximized_window_rect(Window const&) const;
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ClientConnection const* dnd_client() const { return m_dnd_client.ptr(); }
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String const& dnd_text() const { return m_dnd_text; }
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Core::MimeData const& dnd_mime_data() const { return *m_dnd_mime_data; }
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Gfx::Bitmap const* dnd_bitmap() const { return m_dnd_bitmap; }
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Gfx::IntRect dnd_rect() const;
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void start_dnd_drag(ClientConnection&, String const& text, Gfx::Bitmap const*, Core::MimeData const&);
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void end_dnd_drag();
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Window* active_window() { return m_window_stack.active_window(); }
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Window const* active_window() const { return m_window_stack.active_window(); }
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Window* active_input_window() { return m_active_input_window.ptr(); }
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Window const* active_input_window() const { return m_active_input_window.ptr(); }
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ClientConnection const* active_client() const;
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Window* window_with_active_menu() { return m_window_with_active_menu; }
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Window const* window_with_active_menu() const { return m_window_with_active_menu; }
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void set_window_with_active_menu(Window*);
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Window const* highlight_window() const { return m_window_stack.highlight_window(); }
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void set_highlight_window(Window*);
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void move_to_front_and_make_active(Window&);
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Gfx::IntRect desktop_rect() const;
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Gfx::IntRect arena_rect_for_type(WindowType) const;
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Cursor const& active_cursor() const;
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Cursor const& hidden_cursor() const { return *m_hidden_cursor; }
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Cursor const& arrow_cursor() const { return *m_arrow_cursor; }
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Cursor const& crosshair_cursor() const { return *m_crosshair_cursor; }
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Cursor const& hand_cursor() const { return *m_hand_cursor; }
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Cursor const& help_cursor() const { return *m_help_cursor; }
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Cursor const& resize_horizontally_cursor() const { return *m_resize_horizontally_cursor; }
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Cursor const& resize_vertically_cursor() const { return *m_resize_vertically_cursor; }
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Cursor const& resize_diagonally_tlbr_cursor() const { return *m_resize_diagonally_tlbr_cursor; }
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Cursor const& resize_diagonally_bltr_cursor() const { return *m_resize_diagonally_bltr_cursor; }
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Cursor const& resize_column_cursor() const { return *m_resize_column_cursor; }
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Cursor const& resize_row_cursor() const { return *m_resize_row_cursor; }
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Cursor const& i_beam_cursor() const { return *m_i_beam_cursor; }
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Cursor const& disallowed_cursor() const { return *m_disallowed_cursor; }
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Cursor const& move_cursor() const { return *m_move_cursor; }
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Cursor const& drag_cursor() const { return *m_drag_cursor; }
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Cursor const& wait_cursor() const { return *m_wait_cursor; }
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Gfx::Font const& font() const;
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Gfx::Font const& window_title_font() const;
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bool set_resolution(int width, int height, int scale);
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Gfx::IntSize resolution() const;
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int scale_factor() const;
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void set_acceleration_factor(double);
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void set_scroll_step_size(unsigned);
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void set_double_click_speed(int);
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int double_click_speed() const;
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Window* set_active_input_window(Window*);
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void restore_active_input_window(Window*);
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void set_active_window(Window*, bool make_input = true);
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void set_hovered_button(Button*);
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Button const* cursor_tracking_button() const { return m_cursor_tracking_button.ptr(); }
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void set_cursor_tracking_button(Button*);
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void set_resize_candidate(Window&, ResizeDirection);
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void clear_resize_candidate();
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ResizeDirection resize_direction_of_window(Window const&);
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void greet_window_manager(WMClientConnection&);
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void tell_wms_window_state_changed(Window&);
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void tell_wms_window_icon_changed(Window&);
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void tell_wms_window_rect_changed(Window&);
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void tell_wms_applet_area_size_changed(Gfx::IntSize const&);
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void tell_wms_super_key_pressed();
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bool is_active_window_or_accessory(Window&) const;
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void start_window_resize(Window&, Gfx::IntPoint const&, MouseButton);
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void start_window_resize(Window&, MouseEvent const&);
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void start_window_move(Window&, MouseEvent const&);
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void start_window_move(Window&, Gfx::IntPoint const&);
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Window const* active_fullscreen_window() const
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{
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if (active_window() && active_window()->is_fullscreen())
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return active_window();
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return nullptr;
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};
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Window* active_fullscreen_window()
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{
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if (active_window() && active_window()->is_fullscreen())
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return active_window();
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return nullptr;
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}
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bool update_theme(String theme_path, String theme_name);
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void invalidate_after_theme_or_font_change();
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bool set_hovered_window(Window*);
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void deliver_mouse_event(Window& window, MouseEvent& event, bool process_double_click);
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void did_popup_a_menu(Badge<Menu>);
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void start_menu_doubleclick(Window& window, MouseEvent const& event);
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bool is_menu_doubleclick(Window& window, MouseEvent const& event) const;
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void minimize_windows(Window&, bool);
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void maximize_windows(Window&, bool);
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template<typename Function>
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IterationDecision for_each_window_in_modal_stack(Window& window, Function f)
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{
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auto* blocking_modal_window = window.blocking_modal_window();
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if (blocking_modal_window || window.is_modal()) {
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Vector<Window&> modal_stack;
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auto* modal_stack_top = blocking_modal_window ? blocking_modal_window : &window;
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for (auto* parent = modal_stack_top->parent_window(); parent; parent = parent->parent_window()) {
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auto* blocked_by = parent->blocking_modal_window();
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if (!blocked_by || (blocked_by != modal_stack_top && !modal_stack_top->is_descendant_of(*blocked_by)))
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break;
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modal_stack.append(*parent);
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if (!parent->is_modal())
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break;
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}
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if (!modal_stack.is_empty()) {
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for (size_t i = modal_stack.size(); i > 0; i--) {
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IterationDecision decision = f(modal_stack[i - 1], false);
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if (decision != IterationDecision::Continue)
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return decision;
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}
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}
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return f(*modal_stack_top, true);
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} else {
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// Not a modal window stack, just "iterate" over this window
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return f(window, true);
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}
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}
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Gfx::IntPoint get_recommended_window_position(Gfx::IntPoint const& desired);
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int compositor_icon_scale() const;
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void reload_icon_bitmaps_after_scale_change(bool allow_hidpi_icons = true);
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void reevaluate_hovered_window(Window* = nullptr);
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Window* hovered_window() const { return m_hovered_window.ptr(); }
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WindowStack& window_stack() { return m_window_stack; }
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private:
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NonnullRefPtr<Cursor> get_cursor(String const& name);
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void process_mouse_event(MouseEvent&, Window*& hovered_window);
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void process_event_for_doubleclick(Window& window, MouseEvent& event);
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bool process_ongoing_window_resize(MouseEvent const&, Window*& hovered_window);
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bool process_ongoing_window_move(MouseEvent&, Window*& hovered_window);
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bool process_ongoing_drag(MouseEvent&, Window*& hovered_window);
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bool process_ongoing_active_input_mouse_event(MouseEvent&, Window*& hovered_window);
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template<typename Callback>
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void for_each_window_manager(Callback);
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virtual void event(Core::Event&) override;
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void tell_wm_about_window(WMClientConnection& conn, Window&);
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void tell_wm_about_window_icon(WMClientConnection& conn, Window&);
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void tell_wm_about_window_rect(WMClientConnection& conn, Window&);
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bool pick_new_active_window(Window*);
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void do_move_to_front(Window&, bool, bool);
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bool m_allow_hidpi_icons { true };
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RefPtr<Cursor> m_hidden_cursor;
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RefPtr<Cursor> m_arrow_cursor;
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RefPtr<Cursor> m_hand_cursor;
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RefPtr<Cursor> m_help_cursor;
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RefPtr<Cursor> m_resize_horizontally_cursor;
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RefPtr<Cursor> m_resize_vertically_cursor;
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RefPtr<Cursor> m_resize_diagonally_tlbr_cursor;
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RefPtr<Cursor> m_resize_diagonally_bltr_cursor;
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RefPtr<Cursor> m_resize_column_cursor;
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RefPtr<Cursor> m_resize_row_cursor;
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RefPtr<Cursor> m_i_beam_cursor;
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RefPtr<Cursor> m_disallowed_cursor;
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RefPtr<Cursor> m_move_cursor;
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RefPtr<Cursor> m_drag_cursor;
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RefPtr<Cursor> m_wait_cursor;
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RefPtr<Cursor> m_crosshair_cursor;
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WindowStack m_window_stack;
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struct DoubleClickInfo {
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struct ClickMetadata {
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Core::ElapsedTimer clock;
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Gfx::IntPoint last_position;
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};
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ClickMetadata const& metadata_for_button(MouseButton) const;
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ClickMetadata& metadata_for_button(MouseButton);
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void reset()
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{
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m_left = {};
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m_right = {};
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m_middle = {};
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m_back = {};
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m_forward = {};
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}
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WeakPtr<Window> m_clicked_window;
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private:
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ClickMetadata m_left;
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ClickMetadata m_right;
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ClickMetadata m_middle;
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ClickMetadata m_back;
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ClickMetadata m_forward;
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};
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bool is_considered_doubleclick(MouseEvent const&, DoubleClickInfo::ClickMetadata const&) const;
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DoubleClickInfo m_double_click_info;
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int m_double_click_speed { 0 };
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int m_max_distance_for_double_click { 4 };
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bool m_previous_event_was_super_keydown { false };
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WeakPtr<Window> m_hovered_window;
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WeakPtr<Window> m_active_input_window;
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WeakPtr<Window> m_active_input_tracking_window;
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WeakPtr<Window> m_window_with_active_menu;
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WeakPtr<Window> m_move_window;
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Gfx::IntPoint m_move_origin;
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Gfx::IntPoint m_move_window_origin;
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WeakPtr<Window> m_resize_window;
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WeakPtr<Window> m_resize_candidate;
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MouseButton m_resizing_mouse_button { MouseButton::None };
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Gfx::IntRect m_resize_window_original_rect;
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Gfx::IntPoint m_resize_origin;
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ResizeDirection m_resize_direction { ResizeDirection::None };
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u8 m_keyboard_modifiers { 0 };
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WindowSwitcher m_switcher;
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WeakPtr<Button> m_cursor_tracking_button;
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WeakPtr<Button> m_hovered_button;
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NonnullRefPtr<Gfx::PaletteImpl> m_palette;
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RefPtr<Core::ConfigFile> m_config;
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WeakPtr<ClientConnection> m_dnd_client;
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String m_dnd_text;
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RefPtr<Core::MimeData> m_dnd_mime_data;
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RefPtr<Gfx::Bitmap> m_dnd_bitmap;
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};
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template<typename Callback>
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void WindowManager::for_each_window_manager(Callback callback)
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{
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auto& connections = WMClientConnection::s_connections;
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// FIXME: this isn't really ordered... does it need to be?
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for (auto it = connections.begin(); it != connections.end(); ++it) {
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if (callback(*it->value) == IterationDecision::Break)
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return;
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}
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}
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}
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