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/*
htop - InfoScreen.c
(C) 2016 Hisham H. Muhammad
(C) 2020,2022 htop dev team
Released under the GNU GPLv2+, see the COPYING file
in the source distribution for its full text.
*/
#include "config.h" // IWYU pragma: keep
#include "InfoScreen.h"
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include "CRT.h"
#include "IncSet.h"
#include "ListItem.h"
#include "Object.h"
#include "ProvideCurses.h"
#include "XUtils.h"
static const char* const InfoScreenFunctions[] = {"Search ", "Filter ", "Refresh", "Done ", NULL};
static const char* const InfoScreenKeys[] = {"F3", "F4", "F5", "Esc"};
static const int InfoScreenEvents[] = {KEY_F(3), KEY_F(4), KEY_F(5), 27};
InfoScreen* InfoScreen_init(InfoScreen* this, const Process* process, FunctionBar* bar, int height, const char* panelHeader) {
this->process = process;
if (!bar) {
bar = FunctionBar_new(InfoScreenFunctions, InfoScreenKeys, InfoScreenEvents);
}
this->display = Panel_new(0, 1, COLS, height, Class(ListItem), false, bar);
this->inc = IncSet_new(bar);
this->lines = Vector_new(Vector_type(this->display->items), true, DEFAULT_SIZE);
Panel_setHeader(this->display, panelHeader);
return this;
}
InfoScreen* InfoScreen_done(InfoScreen* this) {
Panel_delete((Object*)this->display);
IncSet_delete(this->inc);
Vector_delete(this->lines);
return this;
}
void InfoScreen_drawTitled(InfoScreen* this, const char* fmt, ...) {
va_list ap;
va_start(ap, fmt);
char title[COLS + 1];
int len = vsnprintf(title, sizeof(title), fmt, ap);
va_end(ap);
if (len > COLS) {
memset(&title[COLS - 3], '.', 3);
}
attrset(CRT_colors[METER_TEXT]);
mvhline(0, 0, ' ', COLS);
mvaddstr(0, 0, title);
attrset(CRT_colors[DEFAULT_COLOR]);
Panel_draw(this->display, true, true, true, false);
IncSet_drawBar(this->inc, CRT_colors[FUNCTION_BAR]);
}
void InfoScreen_addLine(InfoScreen* this, const char* line) {
Vector_add(this->lines, (Object*) ListItem_new(line, 0));
const char* incFilter = IncSet_filter(this->inc);
if (!incFilter || String_contains_i(line, incFilter, true)) {
Panel_add(this->display, Vector_get(this->lines, Vector_size(this->lines) - 1));
}
}
void InfoScreen_appendLine(InfoScreen* this, const char* line) {
ListItem* last = (ListItem*)Vector_get(this->lines, Vector_size(this->lines) - 1);
ListItem_append(last, line);
const char* incFilter = IncSet_filter(this->inc);
if (incFilter && Panel_get(this->display, Panel_size(this->display) - 1) != (Object*)last && String_contains_i(line, incFilter, true)) {
Panel_add(this->display, (Object*)last);
}
}
void InfoScreen_run(InfoScreen* this) {
Panel* panel = this->display;
if (As_InfoScreen(this)->scan)
InfoScreen_scan(this);
InfoScreen_draw(this);
bool looping = true;
while (looping) {
Panel_draw(panel, false, true, true, false);
IncSet_drawBar(this->inc, CRT_colors[FUNCTION_BAR]);
int ch = Panel_getCh(panel);
if (ch == ERR) {
if (As_InfoScreen(this)->onErr) {
InfoScreen_onErr(this);
continue;
}
}
#ifdef HAVE_GETMOUSE
if (ch == KEY_MOUSE) {
MEVENT mevent;
int ok = getmouse(&mevent);
if (ok == OK) {
if (mevent.bstate & BUTTON1_RELEASED) {
if (mevent.y >= panel->y && mevent.y < LINES - 1) {
Panel_setSelected(panel, mevent.y - panel->y + panel->scrollV - 1);
ch = 0;
} else if (mevent.y == LINES - 1) {
ch = IncSet_synthesizeEvent(this->inc, mevent.x);
}
}
#if NCURSES_MOUSE_VERSION > 1
else if (mevent.bstate & BUTTON4_PRESSED) {
ch = KEY_WHEELUP;
} else if (mevent.bstate & BUTTON5_PRESSED) {
ch = KEY_WHEELDOWN;
}
#endif
}
}
#endif
if (this->inc->active) {
IncSet_handleKey(this->inc, ch, panel, IncSet_getListItemValue, this->lines);
continue;
}
switch (ch) {
case ERR:
continue;
case KEY_F(3):
case '/':
IncSet_activate(this->inc, INC_SEARCH, panel);
break;
case KEY_F(4):
case '\\':
IncSet_activate(this->inc, INC_FILTER, panel);
break;
case KEY_F(5):
clear();
if (As_InfoScreen(this)->scan) {
Vector_prune(this->lines);
InfoScreen_scan(this);
}
InfoScreen_draw(this);
break;
case '\014': // Ctrl+L
clear();
InfoScreen_draw(this);
break;
case 27:
case 'q':
case KEY_F(10):
looping = false;
break;
case KEY_RESIZE:
Panel_resize(panel, COLS, LINES - 2);
if (As_InfoScreen(this)->scan) {
Vector_prune(this->lines);
InfoScreen_scan(this);
}
InfoScreen_draw(this);
break;
default:
if (As_InfoScreen(this)->onKey && InfoScreen_onKey(this, ch)) {
continue;
}
Panel_onKey(panel, ch);
}
}
}
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