8f529046a9
I'm a tabs guy. I like tabs, it's an elegant way to represent indentation instead of brute-forcing it. But I have to admit that the world seems to be going towards spaces, and tooling tends not to play nice with tabs. So here we go, changing the whole repo to spaces since I'm getting tired of all the inconsistent formatting.
131 lines
3.6 KiB
C++
131 lines
3.6 KiB
C++
/// \file status.h
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/// Status message and indicator handling
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#pragma once
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#include <stdint.h>
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#include <uefi/types.h>
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namespace uefi {
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struct boot_services;
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}
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namespace boot {
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namespace video {
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struct screen;
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}
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// Abstract base class for status reporters.
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class status
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{
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public:
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status(bool fails_clean = true) : m_fails_clean(fails_clean) {}
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virtual void do_warn(const wchar_t *message, uefi::status status) = 0;
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virtual void do_fail(const wchar_t *message, uefi::status status) = 0;
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/// Set the state to warning, and print a message. If the state is already at
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/// warning or error, the state is unchanged but the message is still printed.
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/// \arg message The warning message to print, if text is supported
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/// \arg status If set, the error or warning code that should be represented
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/// \returns True if there was a status handler to display the warning
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inline static bool warn(const wchar_t *message, uefi::status status = uefi::status::success) {
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if (!s_current) return false;
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s_current->do_warn(message, status);
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return s_current->m_fails_clean;
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}
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/// Set the state to error, and print a message. If the state is already at
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/// error, the state is unchanged but the message is still printed.
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/// \arg message The error message to print, if text is supported
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/// \arg status The error or warning code that should be represented
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/// \returns True if there was a status handler to display the failure
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inline static bool fail(const wchar_t *message, uefi::status status) {
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if (!s_current) return false;
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s_current->do_fail(message, status);
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return s_current->m_fails_clean;
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}
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protected:
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static status *s_current;
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static unsigned s_current_type;
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private:
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bool m_fails_clean;
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};
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/// Scoped status line reporter. Prints a message and an "OK" if no errors
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/// or warnings were reported before destruction, otherwise reports the
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/// error or warning.
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class status_line :
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public status
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{
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public:
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constexpr static unsigned type = 1;
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/// Constructor.
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/// \arg message Description of the operation in progress
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/// \arg context If non-null, printed after `message` and a colon
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/// \arg fails_clean If true, this object can handle printing failure
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status_line(
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const wchar_t *message,
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const wchar_t *context = nullptr,
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bool fails_clean = true);
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~status_line();
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virtual void do_warn(const wchar_t *message, uefi::status status) override;
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virtual void do_fail(const wchar_t *message, uefi::status status) override;
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private:
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void print_status_tag();
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size_t m_line;
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int m_level;
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int m_depth;
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status_line *m_outer;
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};
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/// Scoped status bar reporter. Draws a row of boxes along the bottom of
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/// the screen, turning one red if there's an error in that step.
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class status_bar :
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public status
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{
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public:
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constexpr static unsigned type = 2;
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/// Constructor.
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status_bar(video::screen *screen);
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~status_bar();
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virtual void do_warn(const wchar_t *message, uefi::status status) override;
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virtual void do_fail(const wchar_t *message, uefi::status status) override;
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inline void next() {
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m_current = s_count++;
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m_level = 0;
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m_status = uefi::status::success;
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draw_box();
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}
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private:
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void draw_box();
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uint32_t *m_fb;
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uint32_t m_size;
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uint32_t m_top;
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uint32_t m_horiz;
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int m_level;
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uefi::status m_status;
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uint16_t m_type;
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uint16_t m_current;
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status_bar *m_outer;
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static unsigned s_count;
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};
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} // namespace boot
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