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show selected command wrapped in a separate window

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For a process with a very long command, especially with many long
command line arguments, inspecting the command and its arguments could
become inconvenient.

Meanwhile htop supports the concept of "screen", or window, which is
extended here to create a dedicated "CommandScreen", making it possible
to display the command of the selected process in a separate window
meanwhile being wrapped into multiple lines.

Another benefit of using a command screen is, the user can navigate
through the wrapped lines of the command and perform actions like
searching and filtering.
This commit is contained in:
ryenus
2017-08-03 17:43:28 +08:00
committed by cgzones
parent 5233817122
commit f4bb50294a
5 changed files with 108 additions and 3 deletions
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14
Action.c
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@ -13,6 +13,7 @@ in the source distribution for its full text.
#include "CategoriesPanel.h"
#include "CRT.h"
#include "EnvScreen.h"
#include "CommandScreen.h"
#include "MainPanel.h"
#include "OpenFilesScreen.h"
#include "Process.h"
@ -422,8 +423,8 @@ static const struct { const char* key; const char* info; } helpRight[] = {
{ .key = " e: ", .info = "show process environment" },
{ .key = " i: ", .info = "set IO priority" },
{ .key = " l: ", .info = "list open files with lsof" },
{ .key = " M: ", .info = "show process command in multiple lines" },
{ .key = " s: ", .info = "trace syscalls with strace" },
{ .key = " ", .info = "" },
{ .key = " F2 C S: ", .info = "setup" },
{ .key = " F1 h: ", .info = "show this help screen" },
{ .key = " F10 q: ", .info = "quit" },
@ -530,6 +531,16 @@ static Htop_Reaction actionShowEnvScreen(State* st) {
return HTOP_REFRESH | HTOP_REDRAW_BAR;
}
static Htop_Reaction actionShowCommandScreen(State* st) {
Process* p = (Process*) Panel_getSelected(st->panel);
if (!p) return HTOP_OK;
CommandScreen* cmdScr = CommandScreen_new(p);
InfoScreen_run((InfoScreen*)cmdScr);
CommandScreen_delete((Object*)cmdScr);
clear();
CRT_enableDelay();
return HTOP_REFRESH | HTOP_REDRAW_BAR;
}
void Action_setBindings(Htop_Action* keys) {
keys[KEY_RESIZE] = actionResize;
@ -584,4 +595,5 @@ void Action_setBindings(Htop_Action* keys) {
keys['U'] = actionUntagAll;
keys['c'] = actionTagAllChildren;
keys['e'] = actionShowEnvScreen;
keys['M'] = actionShowCommandScreen;
}