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Diffstat (limited to '')
| -rw-r--r-- | src/textfile_sub_source.hh | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/src/textfile_sub_source.hh b/src/textfile_sub_source.hh new file mode 100644 index 0000000..724f7c7 --- /dev/null +++ b/src/textfile_sub_source.hh @@ -0,0 +1,173 @@ +/** + * Copyright (c) 2007-2012, Timothy Stack + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * * 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. + * * Neither the name of Timothy Stack nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. + */ + +#ifndef textfile_sub_source_hh +#define textfile_sub_source_hh + +#include <deque> +#include <unordered_map> + +#include "filter_observer.hh" +#include "logfile.hh" +#include "plain_text_source.hh" +#include "textview_curses.hh" + +class textfile_sub_source + : public text_sub_source + , public vis_location_history + , public text_anchors { +public: + using file_iterator = std::deque<std::shared_ptr<logfile>>::iterator; + + textfile_sub_source() { this->tss_supports_filtering = true; } + + ~textfile_sub_source() override = default; + + bool empty() const { return this->tss_files.empty(); } + + size_t size() const { return this->tss_files.size(); } + + size_t text_line_count() override; + + size_t text_line_width(textview_curses& curses) override + { + return this->tss_files.empty() + ? 0 + : this->current_file()->get_longest_line_length(); + } + + void text_value_for_line(textview_curses& tc, + int line, + std::string& value_out, + line_flags_t flags) override; + + void text_attrs_for_line(textview_curses& tc, + int row, + string_attrs_t& value_out) override; + + size_t text_size_for_line(textview_curses& tc, + int line, + line_flags_t flags) override; + + std::shared_ptr<logfile> current_file() const + { + if (this->tss_files.empty()) { + return nullptr; + } + + return this->tss_files.front(); + } + + std::string text_source_name(const textview_curses& tv) override + { + if (this->tss_files.empty()) { + return ""; + } + + return this->tss_files.front()->get_filename(); + } + + void to_front(const std::shared_ptr<logfile>& lf); + + bool to_front(const std::string& filename); + + void set_top_from_off(file_off_t off); + + void rotate_left(); + + void rotate_right(); + + void remove(const std::shared_ptr<logfile>& lf); + + void push_back(const std::shared_ptr<logfile>& lf); + + class scan_callback { + public: + virtual void closed_files( + const std::vector<std::shared_ptr<logfile>>& files) + = 0; + virtual void promote_file(const std::shared_ptr<logfile>& lf) = 0; + virtual void scanned_file(const std::shared_ptr<logfile>& lf) = 0; + }; + + bool rescan_files(scan_callback& callback, + nonstd::optional<ui_clock::time_point> deadline + = nonstd::nullopt); + + void text_filters_changed() override; + + int get_filtered_count() const override; + + int get_filtered_count_for(size_t filter_index) const override; + + text_format_t get_text_format() const override; + + nonstd::optional<location_history*> get_location_history() override + { + return this; + } + + void text_crumbs_for_line(int line, + std::vector<breadcrumb::crumb>& crumbs) override; + + nonstd::optional<vis_line_t> row_for_anchor(const std::string& id) override; + + nonstd::optional<std::string> anchor_for_row(vis_line_t vl) override; + + std::unordered_set<std::string> get_anchors() override; + + void quiesce() override; + +private: + void detach_observer(std::shared_ptr<logfile> lf) + { + auto* lfo = (line_filter_observer*) lf->get_logline_observer(); + lf->set_logline_observer(nullptr); + delete lfo; + } + + struct rendered_file { + time_t rf_mtime; + file_ssize_t rf_file_size; + std::unique_ptr<plain_text_source> rf_text_source; + }; + + struct metadata_state { + time_t ms_mtime; + file_ssize_t ms_file_size; + lnav::document::metadata ms_metadata; + }; + + std::deque<std::shared_ptr<logfile>> tss_files; + std::deque<std::shared_ptr<logfile>> tss_hidden_files; + std::unordered_map<std::string, rendered_file> tss_rendered_files; + std::unordered_map<std::string, metadata_state> tss_doc_metadata; +}; + +#endif |