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/*
* Copyright (c) 2020, The SerenityOS developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/Forward.h>
#include <AK/String.h>
#include <LibLine/StringMetrics.h>
#include <LibLine/SuggestionManager.h>
#include <stdlib.h>
namespace Line {
class Editor;
class SuggestionDisplay {
public:
virtual ~SuggestionDisplay() { }
virtual void display(const SuggestionManager&) = 0;
virtual bool cleanup() = 0;
virtual void finish() = 0;
virtual void set_initial_prompt_lines(size_t) = 0;
virtual void set_vt_size(size_t lines, size_t columns) = 0;
size_t origin_row() const { return m_origin_row; }
size_t origin_col() const { return m_origin_column; }
void set_origin(int row, int col, Badge<Editor>)
{
m_origin_row = row;
m_origin_column = col;
}
protected:
int m_origin_row { 0 };
int m_origin_column { 0 };
};
class XtermSuggestionDisplay : public SuggestionDisplay {
public:
XtermSuggestionDisplay(size_t lines, size_t columns)
: m_num_lines(lines)
, m_num_columns(columns)
{
}
virtual ~XtermSuggestionDisplay() override { }
virtual void display(const SuggestionManager&) override;
virtual bool cleanup() override;
virtual void finish() override
{
m_pages.clear();
}
virtual void set_initial_prompt_lines(size_t lines) override
{
m_prompt_lines_at_suggestion_initiation = lines;
}
virtual void set_vt_size(size_t lines, size_t columns) override
{
m_num_lines = lines;
m_num_columns = columns;
m_pages.clear();
}
private:
size_t fit_to_page_boundary(size_t selection_index);
size_t m_lines_used_for_last_suggestions { 0 };
size_t m_num_lines { 0 };
size_t m_num_columns { 0 };
size_t m_prompt_lines_at_suggestion_initiation { 0 };
struct PageRange {
size_t start;
size_t end;
};
Vector<PageRange> m_pages;
};
}
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