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d8fa8c5f82
It is possible to switch to VirtualConsoles 1 to 4 via the shortcut ALT + [1-4]. Therefor the array of VirtualConsoles should be guaranteed to be initialized. Also add an constant for the maximum number of VirtualConsoles to guarantee consistency.
93 lines
3.1 KiB
C++
93 lines
3.1 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 <Kernel/Console.h>
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#include <Kernel/Devices/KeyboardDevice.h>
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#include <Kernel/TTY/TTY.h>
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#include <LibVT/Terminal.h>
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namespace Kernel {
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static constexpr unsigned s_max_virtual_consoles = 6;
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class VirtualConsole final : public TTY
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, public KeyboardClient
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, public VT::TerminalClient {
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AK_MAKE_ETERNAL
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public:
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VirtualConsole(const unsigned index);
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virtual ~VirtualConsole() override;
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static void switch_to(unsigned);
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static void initialize();
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bool is_graphical() { return m_graphical; }
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void set_graphical(bool graphical);
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private:
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// ^KeyboardClient
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virtual void on_key_pressed(KeyboardDevice::Event) override;
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// ^TTY
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virtual ssize_t on_tty_write(const u8*, ssize_t) override;
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virtual StringView tty_name() const override { return m_tty_name; }
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virtual void echo(u8) override;
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// ^TerminalClient
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virtual void beep() override;
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virtual void set_window_title(const StringView&) override;
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virtual void set_window_progress(int, int) override;
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virtual void terminal_did_resize(u16 columns, u16 rows) override;
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virtual void terminal_history_changed() override;
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virtual void emit(const u8*, size_t) override;
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// ^CharacterDevice
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virtual const char* class_name() const override { return "VirtualConsole"; }
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void set_active(bool);
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void flush_vga_cursor();
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void flush_dirty_lines();
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unsigned m_index;
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bool m_active { false };
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bool m_graphical { false };
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void clear_vga_row(u16 row);
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void set_vga_start_row(u16 row);
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u16 m_vga_start_row { 0 };
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u16 m_current_vga_start_address { 0 };
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u8* m_current_vga_window { nullptr };
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VT::Terminal m_terminal;
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String m_tty_name;
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};
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}
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