94ca55cefd
As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
419 lines
16 KiB
C++
419 lines
16 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/HashMap.h>
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#include <AK/HashTable.h>
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#include <AK/InlineLinkedList.h>
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#include <AK/WeakPtr.h>
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#include <LibCore/CConfigFile.h>
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#include <LibCore/CElapsedTimer.h>
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#include <LibDraw/Color.h>
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#include <LibDraw/DisjointRectSet.h>
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#include <LibDraw/Painter.h>
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#include <LibDraw/Palette.h>
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#include <LibDraw/Rect.h>
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#include <WindowServer/WSCursor.h>
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#include <WindowServer/WSEvent.h>
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#include <WindowServer/WSMenuBar.h>
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#include <WindowServer/WSMenuManager.h>
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#include <WindowServer/WSWindow.h>
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#include <WindowServer/WSWindowSwitcher.h>
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#include <WindowServer/WSWindowType.h>
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class WSScreen;
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class WSMouseEvent;
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class WSClientWantsToPaintMessage;
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class WSWindow;
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class WSClientConnection;
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class WSWindowSwitcher;
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class GraphicsBitmap;
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class WSButton;
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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 WSWindowManager : public CObject {
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C_OBJECT(WSWindowManager)
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friend class WSCompositor;
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friend class WSWindowFrame;
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friend class WSWindowSwitcher;
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public:
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static WSWindowManager& the();
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explicit WSWindowManager(const PaletteImpl&);
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virtual ~WSWindowManager() override;
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Palette palette() const { return Palette(*m_palette); }
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RefPtr<CConfigFile> wm_config() const
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{
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return m_wm_config;
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}
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void reload_config(bool);
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void add_window(WSWindow&);
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void remove_window(WSWindow&);
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void notify_title_changed(WSWindow&);
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void notify_rect_changed(WSWindow&, const Rect& oldRect, const Rect& newRect);
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void notify_minimization_state_changed(WSWindow&);
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void notify_opacity_changed(WSWindow&);
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void notify_occlusion_state_changed(WSWindow&);
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void notify_client_changed_app_menubar(WSClientConnection&);
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Rect maximized_window_rect(const WSWindow&) const;
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WSClientConnection* dnd_client() { return m_dnd_client.ptr(); }
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const String& dnd_text() const { return m_dnd_text; }
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const String& dnd_data_type() const { return m_dnd_data_type; }
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const String& dnd_data() const { return m_dnd_data; }
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const GraphicsBitmap* dnd_bitmap() const { return m_dnd_bitmap; }
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Rect dnd_rect() const;
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void start_dnd_drag(WSClientConnection&, const String& text, GraphicsBitmap*, const String& data_type, const String& data);
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void end_dnd_drag();
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WSWindow* active_window() { return m_active_window.ptr(); }
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const WSClientConnection* active_client() const;
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bool active_window_is_modal() const { return m_active_window && m_active_window->is_modal(); }
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WSWindow* highlight_window() { return m_highlight_window.ptr(); }
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void set_highlight_window(WSWindow*);
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void move_to_front_and_make_active(WSWindow&);
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void draw_window_switcher();
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Rect menubar_rect() const;
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const WSCursor& active_cursor() const;
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const WSCursor& arrow_cursor() const { return *m_arrow_cursor; }
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const WSCursor& hand_cursor() const { return *m_hand_cursor; }
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const WSCursor& resize_horizontally_cursor() const { return *m_resize_horizontally_cursor; }
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const WSCursor& resize_vertically_cursor() const { return *m_resize_vertically_cursor; }
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const WSCursor& resize_diagonally_tlbr_cursor() const { return *m_resize_diagonally_tlbr_cursor; }
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const WSCursor& resize_diagonally_bltr_cursor() const { return *m_resize_diagonally_bltr_cursor; }
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const WSCursor& i_beam_cursor() const { return *m_i_beam_cursor; }
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const WSCursor& disallowed_cursor() const { return *m_disallowed_cursor; }
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const WSCursor& move_cursor() const { return *m_move_cursor; }
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const WSCursor& drag_cursor() const { return *m_drag_cursor; }
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void invalidate(const WSWindow&);
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void invalidate(const WSWindow&, const Rect&);
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void invalidate(const Rect&);
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void invalidate();
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void flush(const Rect&);
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const Font& font() const;
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const Font& window_title_font() const;
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const Font& menu_font() const;
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const Font& app_menu_font() const;
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int menubar_menu_margin() const;
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void set_resolution(int width, int height);
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void set_active_window(WSWindow*);
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void set_hovered_button(WSButton*);
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WSButton* cursor_tracking_button() { return m_cursor_tracking_button.ptr(); }
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void set_cursor_tracking_button(WSButton*);
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void set_resize_candidate(WSWindow&, ResizeDirection);
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void clear_resize_candidate();
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ResizeDirection resize_direction_of_window(const WSWindow&);
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bool any_opaque_window_contains_rect(const Rect&);
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bool any_opaque_window_above_this_one_contains_rect(const WSWindow&, const Rect&);
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void tell_wm_listeners_window_state_changed(WSWindow&);
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void tell_wm_listeners_window_icon_changed(WSWindow&);
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void tell_wm_listeners_window_rect_changed(WSWindow&);
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void start_window_resize(WSWindow&, const Point&, MouseButton);
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void start_window_resize(WSWindow&, const WSMouseEvent&);
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const WSWindow* active_fullscreen_window() const { return (m_active_window && m_active_window->is_fullscreen()) ? m_active_window : nullptr; }
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WSWindow* active_fullscreen_window() { return (m_active_window && m_active_window->is_fullscreen()) ? m_active_window : nullptr; }
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void update_theme(String theme_path, String theme_name);
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private:
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NonnullRefPtr<WSCursor> get_cursor(const String& name);
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NonnullRefPtr<WSCursor> get_cursor(const String& name, const Point& hotspot);
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void process_mouse_event(WSMouseEvent&, WSWindow*& hovered_window);
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void process_event_for_doubleclick(WSWindow& window, WSMouseEvent& event);
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void deliver_mouse_event(WSWindow& window, WSMouseEvent& event);
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bool process_ongoing_window_resize(const WSMouseEvent&, WSWindow*& hovered_window);
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bool process_ongoing_window_move(WSMouseEvent&, WSWindow*& hovered_window);
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bool process_ongoing_drag(WSMouseEvent&, WSWindow*& hovered_window);
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void start_window_move(WSWindow&, const WSMouseEvent&);
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void set_hovered_window(WSWindow*);
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template<typename Callback>
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IterationDecision for_each_visible_window_of_type_from_back_to_front(WSWindowType, Callback, bool ignore_highlight = false);
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template<typename Callback>
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IterationDecision for_each_visible_window_of_type_from_front_to_back(WSWindowType, Callback, bool ignore_highlight = false);
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template<typename Callback>
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IterationDecision for_each_visible_window_from_front_to_back(Callback);
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template<typename Callback>
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IterationDecision for_each_visible_window_from_back_to_front(Callback);
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template<typename Callback>
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void for_each_window_listening_to_wm_events(Callback);
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template<typename Callback>
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void for_each_window(Callback);
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template<typename Callback>
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IterationDecision for_each_window_of_type_from_front_to_back(WSWindowType, Callback, bool ignore_highlight = false);
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virtual void event(CEvent&) override;
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void paint_window_frame(const WSWindow&);
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void tell_wm_listener_about_window(WSWindow& listener, WSWindow&);
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void tell_wm_listener_about_window_icon(WSWindow& listener, WSWindow&);
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void tell_wm_listener_about_window_rect(WSWindow& listener, WSWindow&);
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void pick_new_active_window();
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void recompute_occlusions();
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RefPtr<WSCursor> m_arrow_cursor;
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RefPtr<WSCursor> m_hand_cursor;
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RefPtr<WSCursor> m_resize_horizontally_cursor;
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RefPtr<WSCursor> m_resize_vertically_cursor;
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RefPtr<WSCursor> m_resize_diagonally_tlbr_cursor;
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RefPtr<WSCursor> m_resize_diagonally_bltr_cursor;
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RefPtr<WSCursor> m_i_beam_cursor;
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RefPtr<WSCursor> m_disallowed_cursor;
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RefPtr<WSCursor> m_move_cursor;
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RefPtr<WSCursor> m_drag_cursor;
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Color m_background_color;
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Color m_active_window_border_color;
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Color m_active_window_border_color2;
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Color m_active_window_title_color;
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Color m_inactive_window_border_color;
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Color m_inactive_window_border_color2;
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Color m_inactive_window_title_color;
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Color m_moving_window_border_color;
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Color m_moving_window_border_color2;
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Color m_moving_window_title_color;
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Color m_highlight_window_border_color;
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Color m_highlight_window_border_color2;
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Color m_highlight_window_title_color;
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InlineLinkedList<WSWindow> m_windows_in_order;
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struct DoubleClickInfo {
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struct ClickMetadata {
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CElapsedTimer clock;
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Point last_position;
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};
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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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}
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WeakPtr<WSWindow> 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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};
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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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WeakPtr<WSWindow> m_active_window;
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WeakPtr<WSWindow> m_hovered_window;
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WeakPtr<WSWindow> m_highlight_window;
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WeakPtr<WSWindow> m_active_input_window;
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WeakPtr<WSWindow> m_move_window;
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Point m_move_origin;
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Point m_move_window_origin;
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WeakPtr<WSWindow> m_resize_window;
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WeakPtr<WSWindow> m_resize_candidate;
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MouseButton m_resizing_mouse_button { MouseButton::None };
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Rect m_resize_window_original_rect;
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Point m_resize_origin;
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ResizeDirection m_resize_direction { ResizeDirection::None };
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bool m_moved_or_resized_since_logo_keydown { false };
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u8 m_keyboard_modifiers { 0 };
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WSWindowSwitcher m_switcher;
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WeakPtr<WSButton> m_cursor_tracking_button;
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WeakPtr<WSButton> m_hovered_button;
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NonnullRefPtr<PaletteImpl> m_palette;
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RefPtr<CConfigFile> m_wm_config;
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WeakPtr<WSClientConnection> m_dnd_client;
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String m_dnd_text;
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String m_dnd_data_type;
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String m_dnd_data;
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RefPtr<GraphicsBitmap> m_dnd_bitmap;
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};
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template<typename Callback>
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IterationDecision WSWindowManager::for_each_visible_window_of_type_from_back_to_front(WSWindowType type, Callback callback, bool ignore_highlight)
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{
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bool do_highlight_window_at_end = false;
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for (auto& window : m_windows_in_order) {
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if (!window.is_visible())
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continue;
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if (window.is_minimized())
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continue;
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if (window.type() != type)
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continue;
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if (!ignore_highlight && m_highlight_window == &window) {
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do_highlight_window_at_end = true;
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continue;
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}
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if (callback(window) == IterationDecision::Break)
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return IterationDecision::Break;
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}
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if (do_highlight_window_at_end) {
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if (callback(*m_highlight_window) == IterationDecision::Break)
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return IterationDecision::Break;
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}
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return IterationDecision::Continue;
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}
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template<typename Callback>
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IterationDecision WSWindowManager::for_each_visible_window_from_back_to_front(Callback callback)
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{
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if (for_each_visible_window_of_type_from_back_to_front(WSWindowType::Normal, callback) == IterationDecision::Break)
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return IterationDecision::Break;
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if (for_each_visible_window_of_type_from_back_to_front(WSWindowType::Taskbar, callback) == IterationDecision::Break)
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return IterationDecision::Break;
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if (for_each_visible_window_of_type_from_back_to_front(WSWindowType::Tooltip, callback) == IterationDecision::Break)
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return IterationDecision::Break;
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if (for_each_visible_window_of_type_from_back_to_front(WSWindowType::Menubar, callback) == IterationDecision::Break)
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return IterationDecision::Break;
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if (for_each_visible_window_of_type_from_back_to_front(WSWindowType::Menu, callback) == IterationDecision::Break)
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return IterationDecision::Break;
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return for_each_visible_window_of_type_from_back_to_front(WSWindowType::WindowSwitcher, callback);
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}
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template<typename Callback>
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IterationDecision WSWindowManager::for_each_visible_window_of_type_from_front_to_back(WSWindowType type, Callback callback, bool ignore_highlight)
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{
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if (!ignore_highlight && m_highlight_window && m_highlight_window->type() == type && m_highlight_window->is_visible()) {
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if (callback(*m_highlight_window) == IterationDecision::Break)
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return IterationDecision::Break;
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}
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for (auto* window = m_windows_in_order.tail(); window; window = window->prev()) {
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if (!window->is_visible())
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continue;
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if (window->is_minimized())
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continue;
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if (window->type() != type)
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continue;
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if (!ignore_highlight && window == m_highlight_window)
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continue;
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if (callback(*window) == IterationDecision::Break)
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return IterationDecision::Break;
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}
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return IterationDecision::Continue;
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}
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template<typename Callback>
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IterationDecision WSWindowManager::for_each_visible_window_from_front_to_back(Callback callback)
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{
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if (for_each_visible_window_of_type_from_front_to_back(WSWindowType::WindowSwitcher, callback) == IterationDecision::Break)
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return IterationDecision::Break;
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if (for_each_visible_window_of_type_from_front_to_back(WSWindowType::Menu, callback) == IterationDecision::Break)
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return IterationDecision::Break;
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if (for_each_visible_window_of_type_from_front_to_back(WSWindowType::Menubar, callback) == IterationDecision::Break)
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return IterationDecision::Break;
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if (for_each_visible_window_of_type_from_front_to_back(WSWindowType::Taskbar, callback) == IterationDecision::Break)
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return IterationDecision::Break;
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if (for_each_visible_window_of_type_from_front_to_back(WSWindowType::Tooltip, callback) == IterationDecision::Break)
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return IterationDecision::Break;
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return for_each_visible_window_of_type_from_front_to_back(WSWindowType::Normal, callback);
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}
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template<typename Callback>
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void WSWindowManager::for_each_window_listening_to_wm_events(Callback callback)
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{
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for (auto* window = m_windows_in_order.tail(); window; window = window->prev()) {
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if (!window->listens_to_wm_events())
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continue;
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if (callback(*window) == IterationDecision::Break)
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return;
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}
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}
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template<typename Callback>
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void WSWindowManager::for_each_window(Callback callback)
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{
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for (auto* window = m_windows_in_order.tail(); window; window = window->prev()) {
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if (callback(*window) == IterationDecision::Break)
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return;
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}
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}
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template<typename Callback>
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IterationDecision WSWindowManager::for_each_window_of_type_from_front_to_back(WSWindowType type, Callback callback, bool ignore_highlight)
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{
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if (!ignore_highlight && m_highlight_window && m_highlight_window->type() == type && m_highlight_window->is_visible()) {
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if (callback(*m_highlight_window) == IterationDecision::Break)
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return IterationDecision::Break;
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}
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for (auto* window = m_windows_in_order.tail(); window; window = window->prev()) {
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if (window->type() != type)
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continue;
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if (!ignore_highlight && window == m_highlight_window)
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continue;
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if (callback(*window) == IterationDecision::Break)
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return IterationDecision::Break;
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}
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return IterationDecision::Continue;
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}
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