123 lines
3.2 KiB
C++
123 lines
3.2 KiB
C++
#include "buffer_manager.hh"
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#include "assert.hh"
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#include "buffer.hh"
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#include "client_manager.hh"
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#include "exception.hh"
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#include "file.hh"
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#include "ranges.hh"
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#include "string.hh"
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namespace Kakoune
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{
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BufferManager::~BufferManager()
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{
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// Move buffers to m_buffer_trash to avoid running BufClose
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// hook while clearing m_buffers
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m_buffer_trash = std::move(m_buffers);
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for (auto& buffer : m_buffer_trash)
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buffer->on_unregistered();
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// Make sure not clients exists
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if (ClientManager::has_instance())
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ClientManager::instance().clear();
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}
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Buffer* BufferManager::create_buffer(String name, Buffer::Flags flags,
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StringView data, timespec fs_timestamp)
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{
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auto path = real_path(parse_filename(name));
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for (auto& buf : m_buffers)
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{
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if (buf->name() == name or
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(buf->flags() & Buffer::Flags::File and buf->name() == path))
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throw runtime_error{"buffer name is already in use"};
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}
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m_buffers.emplace(m_buffers.begin(),
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new Buffer{std::move(name), flags, data, fs_timestamp});
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auto& buffer = *m_buffers.front();
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buffer.on_registered();
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if (contains(m_buffer_trash, &buffer))
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throw runtime_error{"Buffer got removed during its creation"};
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return &buffer;
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}
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void BufferManager::delete_buffer(Buffer& buffer)
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{
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auto it = find_if(m_buffers, [&](const std::unique_ptr<Buffer>& p)
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{ return p.get() == &buffer; });
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kak_assert(it != m_buffers.end());
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m_buffer_trash.emplace_back(std::move(*it));
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m_buffers.erase(it);
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if (ClientManager::has_instance())
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ClientManager::instance().ensure_no_client_uses_buffer(buffer);
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buffer.on_unregistered();
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}
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Buffer* BufferManager::get_buffer_ifp(StringView name)
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{
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auto path = real_path(parse_filename(name));
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for (auto& buf : m_buffers)
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{
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if (buf->name() == name or
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(buf->flags() & Buffer::Flags::File and buf->name() == path))
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return buf.get();
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}
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return nullptr;
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}
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Buffer& BufferManager::get_buffer(StringView name)
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{
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Buffer* res = get_buffer_ifp(name);
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if (not res)
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throw runtime_error{format("no such buffer '{}'", name)};
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return *res;
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}
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Buffer& BufferManager::get_first_buffer()
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{
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if (not contains_that(m_buffers, [](const std::unique_ptr<Buffer>& p)
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{ return not (p->flags() & Buffer::Flags::Debug); }))
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create_buffer("*scratch*", Buffer::Flags::None);
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return *m_buffers.front();
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}
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void BufferManager::backup_modified_buffers()
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{
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for (auto& buf : m_buffers)
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{
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if ((buf->flags() & Buffer::Flags::File) and buf->is_modified()
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and not (buf->flags() & Buffer::Flags::ReadOnly))
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write_buffer_to_backup_file(*buf);
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}
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}
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void BufferManager::clear_buffer_trash()
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{
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for (auto& buffer : m_buffer_trash)
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{
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// Do that again, to be tolerant in some corner cases, where a buffer is
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// deleted during its creation
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if (ClientManager::has_instance())
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{
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ClientManager::instance().ensure_no_client_uses_buffer(*buffer);
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ClientManager::instance().clear_window_trash();
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}
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buffer.reset();
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}
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m_buffer_trash.clear();
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}
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}
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