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diff --git a/src/bottom_status_source.hh b/src/bottom_status_source.hh
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+/**
+ * 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 lnav_bottom_status_source_hh
+#define lnav_bottom_status_source_hh
+
+#include <string>
+
+#include "grep_proc.hh"
+#include "statusview_curses.hh"
+#include "textview_curses.hh"
+
+class bottom_status_source
+    : public status_data_source
+    , public grep_proc_control {
+public:
+    typedef enum {
+        BSF_LINE_NUMBER,
+        BSF_PERCENT,
+        BSF_HITS,
+        BSF_SEARCH_TERM,
+        BSF_LOADING,
+        BSF_HELP,
+
+        BSF__MAX
+    } field_t;
+
+    bottom_status_source();
+
+    status_field& get_field(field_t id) { return this->bss_fields[id]; }
+
+    void set_prompt(const std::string& prompt)
+    {
+        this->bss_prompt.set_value(prompt);
+    }
+
+    void grep_error(const std::string& msg) override
+    {
+        this->bss_error.set_value(msg);
+    }
+
+    size_t statusview_fields() override;
+
+    status_field& statusview_value_for_field(int field) override;
+
+    void update_line_number(listview_curses* lc);
+
+    void update_search_term(textview_curses& tc);
+
+    void update_percent(listview_curses* lc);
+
+    void update_marks(listview_curses* lc);
+
+    void update_hits(textview_curses* tc);
+
+    void update_loading(file_off_t off, file_ssize_t total);
+
+private:
+    status_field bss_prompt{1024, role_t::VCR_STATUS};
+    status_field bss_error{1024, role_t::VCR_ALERT_STATUS};
+    status_field bss_line_error{1024, role_t::VCR_ALERT_STATUS};
+    status_field bss_fields[BSF__MAX];
+    int bss_hit_spinner{0};
+    int bss_load_percent{0};
+    bool bss_paused{false};
+};
+
+#endif