// SPDX-License-Identifier: GPL-2.0#include "../util/string2.h"#include "../util/config.h"#include "libslang.h"#include "ui.h"#include "util.h"#include <linux/compiler.h>#include <linux/list.h>#include <linux/rbtree.h>#include <linux/string.h>#include <stdlib.h>#include <sys/ttydefaults.h>#include "browser.h"#include "helpline.h"#include "keysyms.h"#include "../util/color.h"#include <linux/ctype.h>#include <linux/zalloc.h> static int ui_browser__percent_color(struct ui_browser *browser, double percent, bool current){ if (current && (!browser->use_navkeypressed || browser->navkeypressed)) return HE_COLORSET_SELECTED; if (percent >= MIN_RED) return HE_COLORSET_TOP; if (percent >= MIN_GREEN) return HE_COLORSET_MEDIUM; return HE_COLORSET_NORMAL;} int ui_browser__set_color(struct ui_browser *browser, int color){ int ret = browser->current_color; browser->current_color = color; SLsmg_set_color(color); return ret;} void ui_browser__set_percent_color(struct ui_browser *browser, double percent, bool current){ int color = ui_browser__percent_color(browser, percent, current); ui_browser__set_color(browser, color);} void ui_browser__gotorc_title(struct ui_browser *browser, int y, int x){ SLsmg_gotorc(browser->y + y, browser->x + x);} void ui_browser__gotorc(struct ui_browser *browser, int y, int x){ SLsmg_gotorc(browser->y + y + browser->extra_title_lines, browser->x + x);} void ui_browser__write_nstring(struct ui_browser *browser __maybe_unused, const char *msg, unsigned int width){ SLsmg_write_nstring(msg, width);} void ui_browser__vprintf(struct ui_browser *browser __maybe_unused, const char *fmt, va_list args){ SLsmg_vprintf(fmt, args);} void ui_browser__printf(struct ui_browser *browser __maybe_unused, const char *fmt, ...){ va_list args; va_start(args, fmt); ui_browser__vprintf(browser, fmt, args); va_end(args);} static struct list_head *ui_browser__list_head_filter_entries(struct ui_browser *browser, struct list_head *pos){ do { if (!browser->filter || !browser->filter(browser, pos)) return pos; pos = pos->next; } while (pos != browser->entries); return NULL;} static struct list_head *ui_browser__list_head_filter_prev_entries(struct ui_browser *browser, struct list_head *pos){ do { if (!browser->filter || !browser->filter(browser, pos)) return pos; pos = pos->prev; } while (pos != browser->entries); return NULL;} void ui_browser__list_head_seek(struct ui_browser *browser, off_t offset, int whence){ struct list_head *head = browser->entries; struct list_head *pos; if (browser->nr_entries == 0) return; switch (whence) { case SEEK_SET: pos = ui_browser__list_head_filter_entries(browser, head->next); break; case SEEK_CUR: pos = browser->top; break; case SEEK_END: pos = ui_browser__list_head_filter_prev_entries(browser, head->prev); break; default: return; } assert(pos != NULL); if (offset > 0) { while (offset-- != 0) pos = ui_browser__list_head_filter_entries(browser, pos->next); } else { while (offset++ != 0) pos = ui_browser__list_head_filter_prev_entries(browser, pos->prev); } browser->top = pos;} void ui_browser__rb_tree_seek(struct ui_browser *browser, off_t offset, int whence){ struct rb_root *root = browser->entries; struct rb_node *nd; switch (whence) { case SEEK_SET: nd = rb_first(root); break; case SEEK_CUR: nd = browser->top; break; case SEEK_END: nd = rb_last(root); break; default: return; } if (offset > 0) { while (offset-- != 0) nd = rb_next(nd); } else { while (offset++ != 0) nd = rb_prev(nd); } browser->top = nd;} unsigned int ui_browser__rb_tree_refresh(struct ui_browser *browser){ struct rb_node *nd; int row = 0; if (browser->top == NULL) browser->top = rb_first(browser->entries); nd = browser->top; while (nd != NULL) { ui_browser__gotorc(browser, row, 0); browser->write(browser, nd, row); if (++row == browser->rows) break; nd = rb_next(nd); } return row;} bool ui_browser__is_current_entry(struct ui_browser *browser, unsigned row){ return browser->top_idx + row == browser->index;} void ui_browser__refresh_dimensions(struct ui_browser *browser){ browser->width = SLtt_Screen_Cols - 1; browser->height = browser->rows = SLtt_Screen_Rows - 2; browser->rows -= browser->extra_title_lines; browser->y = 1; browser->x = 0;} void ui_browser__handle_resize(struct ui_browser *browser){ ui__refresh_dimensions(false); ui_browser__show(browser, browser->title ?: "", ui_helpline__current); ui_browser__refresh(browser);} int ui_browser__warning(struct ui_browser *browser, int timeout, const char *format, ...){ va_list args; char *text; int key = 0, err; va_start(args, format); err = vasprintf(&text, format, args); va_end(args); if (err < 0) { va_start(args, format); ui_helpline__vpush(format, args); va_end(args); } else { while ((key = ui__question_window("Warning!", text, "Press any key...", timeout)) == K_RESIZE) ui_browser__handle_resize(browser); free(text); } return key;} int ui_browser__warn_unhandled_hotkey(struct ui_browser *browser, int key, int timeout, const char *help){ char kname[32]; key_name(key, kname, sizeof(kname)); return ui_browser__warning(browser, timeout, "\n'%s' key not associated%s!\n", kname, help ?: "");} int ui_browser__help_window(struct ui_browser *browser, const char *text){ int key; while ((key = ui__help_window(text)) == K_RESIZE) ui_browser__handle_resize(browser); return key;} bool ui_browser__dialog_yesno(struct ui_browser *browser, const char *text){ int key; while ((key = ui__dialog_yesno(text)) == K_RESIZE) ui_browser__handle_resize(browser); return key == K_ENTER || toupper(key) == 'Y';} void ui_browser__reset_index(struct ui_browser *browser){ browser->index = browser->top_idx = 0; browser->seek(browser, 0, SEEK_SET);} void __ui_browser__show_title(struct ui_browser *browser, const char *title){ SLsmg_gotorc(0, 0); ui_browser__set_color(browser, HE_COLORSET_ROOT); ui_browser__write_nstring(browser, title, browser->width + 1);} void ui_browser__show_title(struct ui_browser *browser, const char *title){ mutex_lock(&ui__lock); __ui_browser__show_title(browser, title); mutex_unlock(&ui__lock);} int ui_browser__show(struct ui_browser *browser, const char *title, const char *helpline, ...){ int err; va_list ap; if (browser->refresh_dimensions == NULL) browser->refresh_dimensions = ui_browser__refresh_dimensions; browser->refresh_dimensions(browser); mutex_lock(&ui__lock); __ui_browser__show_title(browser, title); free(browser->title); browser->title = strdup(title); zfree(&browser->helpline); va_start(ap, helpline); err = vasprintf(&browser->helpline, helpline, ap); va_end(ap); if (err > 0) ui_helpline__push(browser->helpline); mutex_unlock(&ui__lock); return err ? 0 : -1;} void ui_browser__hide(struct ui_browser *browser){ mutex_lock(&ui__lock); ui_helpline__pop(); zfree(&browser->helpline); zfree(&browser->title); mutex_unlock(&ui__lock);} static void ui_browser__scrollbar_set(struct ui_browser *browser){ int height = browser->height, h = 0, pct = 0, col = browser->width, row = 0; if (browser->nr_entries > 1) { pct = ((browser->index * (browser->height - 1)) / (browser->nr_entries - 1)); } SLsmg_set_char_set(1); while (h < height) { ui_browser__gotorc(browser, row++, col); SLsmg_write_char(h == pct ? SLSMG_DIAMOND_CHAR : SLSMG_CKBRD_CHAR); ++h; } SLsmg_set_char_set(0);} static int __ui_browser__refresh(struct ui_browser *browser){ int row; int width = browser->width; row = browser->refresh(browser); ui_browser__set_color(browser, HE_COLORSET_NORMAL); if (!browser->use_navkeypressed || browser->navkeypressed) ui_browser__scrollbar_set(browser); else width += 1; SLsmg_fill_region(browser->y + row + browser->extra_title_lines, browser->x, browser->rows - row, width, ' '); if (browser->nr_entries == 0 && browser->no_samples_msg) __ui__info_window(NULL, browser->no_samples_msg, NULL); return 0;} int ui_browser__refresh(struct ui_browser *browser){ mutex_lock(&ui__lock); __ui_browser__refresh(browser); mutex_unlock(&ui__lock); return 0;} /* * Here we're updating nr_entries _after_ we started browsing, i.e. we have to * forget about any reference to any entry in the underlying data structure, * that is why we do a SEEK_SET. Think about 'perf top' in the hists browser * after an output_resort and hist decay. */void ui_browser__update_nr_entries(struct ui_browser *browser, u32 nr_entries){ off_t offset = nr_entries - browser->nr_entries; browser->nr_entries = nr_entries; if (offset < 0) { if (browser->top_idx < (u64)-offset) offset = -browser->top_idx; browser->index += offset; browser->top_idx += offset; } browser->top = NULL; browser->seek(browser, browser->top_idx, SEEK_SET);} int ui_browser__run(struct ui_browser *browser, int delay_secs){ int err, key; while (1) { off_t offset; mutex_lock(&ui__lock); err = __ui_browser__refresh(browser); SLsmg_refresh(); mutex_unlock(&ui__lock); if (err < 0) break; key = ui__getch(delay_secs); if (key == K_RESIZE) { ui__refresh_dimensions(false); browser->refresh_dimensions(browser); __ui_browser__show_title(browser, browser->title); ui_helpline__puts(browser->helpline); continue; } if (browser->use_navkeypressed && !browser->navkeypressed) { if (key == K_DOWN || key == K_UP || (browser->columns && (key == K_LEFT || key == K_RIGHT)) || key == K_PGDN || key == K_PGUP || key == K_HOME || key == K_END || key == ' ') { browser->navkeypressed = true; continue; } else return key; } switch (key) { case K_DOWN: if (browser->index == browser->nr_entries - 1) break; ++browser->index; if (browser->index == browser->top_idx + browser->rows) { ++browser->top_idx; browser->seek(browser, +1, SEEK_CUR); } break; case K_UP: if (browser->index == 0) break; --browser->index; if (browser->index < browser->top_idx) { --browser->top_idx; browser->seek(browser, -1, SEEK_CUR); } break; case K_RIGHT: if (!browser->columns) goto out; if (browser->horiz_scroll < browser->columns - 1) ++browser->horiz_scroll; break; case K_LEFT: if (!browser->columns) goto out; if (browser->horiz_scroll != 0) --browser->horiz_scroll; else goto out; break; case K_PGDN: case ' ': if (browser->top_idx + browser->rows > browser->nr_entries - 1) break; offset = browser->rows; if (browser->index + offset > browser->nr_entries - 1) offset = browser->nr_entries - 1 - browser->index; browser->index += offset; browser->top_idx += offset; browser->seek(browser, +offset, SEEK_CUR); break; case K_PGUP: if (browser->top_idx == 0) break; if (browser->top_idx < browser->rows) offset = browser->top_idx; else offset = browser->rows; browser->index -= offset; browser->top_idx -= offset; browser->seek(browser, -offset, SEEK_CUR); break; case K_HOME: ui_browser__reset_index(browser); break; case K_END: offset = browser->rows - 1; if (offset >= browser->nr_entries) offset = browser->nr_entries - 1; browser->index = browser->nr_entries - 1; browser->top_idx = browser->index - offset; browser->seek(browser, -offset, SEEK_END);Lines 1–500 of 828. 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// SPDX-License-Identifier: GPL-2.0 #include "../util/string2.h" #include "../util/config.h" #include "libslang.h" #include "ui.h" #include "util.h" #include <linux/compiler.h> #include <linux/list.h> #include <linux/rbtree.h> #include <linux/string.h> #include <stdlib.h> #include <sys/ttydefaults.h> #include "browser.h" #include "helpline.h" #include "keysyms.h" #include "../util/color.h" #include <linux/ctype.h> #include <linux/zalloc.h> static int ui_browser__percent_color(struct ui_browser *browser, double percent, bool current) { if (current && (!browser->use_navkeypressed || browser->navkeypressed)) return HE_COLORSET_SELECTED; if (percent >= MIN_RED) return HE_COLORSET_TOP; if (percent >= MIN_GREEN) return HE_COLORSET_MEDIUM; return HE_COLORSET_NORMAL; } int ui_browser__set_color(struct ui_browser *browser, int color) { int ret = browser->current_color; browser->current_color = color; SLsmg_set_color(color); return ret; } void ui_browser__set_percent_color(struct ui_browser *browser, double percent, bool current) { int color = ui_browser__percent_color(browser, percent, current); ui_browser__set_color(browser, color); } void ui_browser__gotorc_title(struct ui_browser *browser, int y, int x) { SLsmg_gotorc(browser->y + y, browser->x + x); } void ui_browser__gotorc(struct ui_browser *browser, int y, int x) { SLsmg_gotorc(browser->y + y + browser->extra_title_lines, browser->x + x); } void ui_browser__write_nstring(struct ui_browser *browser __maybe_unused, const char *msg, unsigned int width) { SLsmg_write_nstring(msg, width); } void ui_browser__vprintf(struct ui_browser *browser __maybe_unused, const char *fmt, va_list args) { SLsmg_vprintf(fmt, args); } void ui_browser__printf(struct ui_browser *browser __maybe_unused, const char *fmt, ...) { va_list args; va_start(args, fmt); ui_browser__vprintf(browser, fmt, args); va_end(args); } static struct list_head * ui_browser__list_head_filter_entries(struct ui_browser *browser, struct list_head *pos) { do { if (!browser->filter || !browser->filter(browser, pos)) return pos; pos = pos->next; } while (pos != browser->entries); return NULL; } static struct list_head * ui_browser__list_head_filter_prev_entries(struct ui_browser *browser, struct list_head *pos) { do { if (!browser->filter || !browser->filter(browser, pos)) return pos; pos = pos->prev; } while (pos != browser->entries); return NULL; } void ui_browser__list_head_seek(struct ui_browser *browser, off_t offset, int whence) { struct list_head *head = browser->entries; struct list_head *pos; if (browser->nr_entries == 0) return; switch (whence) { case SEEK_SET: pos = ui_browser__list_head_filter_entries(browser, head->next); break; case SEEK_CUR: pos = browser->top; break; case SEEK_END: pos = ui_browser__list_head_filter_prev_entries(browser, head->prev); break; default: return; } assert(pos != NULL); if (offset > 0) { while (offset-- != 0) pos = ui_browser__list_head_filter_entries(browser, pos->next); } else { while (offset++ != 0) pos = ui_browser__list_head_filter_prev_entries(browser, pos->prev); } browser->top = pos; } void ui_browser__rb_tree_seek(struct ui_browser *browser, off_t offset, int whence) { struct rb_root *root = browser->entries; struct rb_node *nd; switch (whence) { case SEEK_SET: nd = rb_first(root); break; case SEEK_CUR: nd = browser->top; break; case SEEK_END: nd = rb_last(root); break; default: return; } if (offset > 0) { while (offset-- != 0) nd = rb_next(nd); } else { while (offset++ != 0) nd = rb_prev(nd); } browser->top = nd; } unsigned int ui_browser__rb_tree_refresh(struct ui_browser *browser) { struct rb_node *nd; int row = 0; if (browser->top == NULL) browser->top = rb_first(browser->entries); nd = browser->top; while (nd != NULL) { ui_browser__gotorc(browser, row, 0); browser->write(browser, nd, row); if (++row == browser->rows) break; nd = rb_next(nd); } return row; } bool ui_browser__is_current_entry(struct ui_browser *browser, unsigned row) { return browser->top_idx + row == browser->index; } void ui_browser__refresh_dimensions(struct ui_browser *browser) { browser->width = SLtt_Screen_Cols - 1; browser->height = browser->rows = SLtt_Screen_Rows - 2; browser->rows -= browser->extra_title_lines; browser->y = 1; browser->x = 0; } void ui_browser__handle_resize(struct ui_browser *browser) { ui__refresh_dimensions(false); ui_browser__show(browser, browser->title ?: "", ui_helpline__current); ui_browser__refresh(browser); } int ui_browser__warning(struct ui_browser *browser, int timeout, const char *format, ...) { va_list args; char *text; int key = 0, err; va_start(args, format); err = vasprintf(&text, format, args); va_end(args); if (err < 0) { va_start(args, format); ui_helpline__vpush(format, args); va_end(args); } else { while ((key = ui__question_window("Warning!", text, "Press any key...", timeout)) == K_RESIZE) ui_browser__handle_resize(browser); free(text); } return key; } int ui_browser__warn_unhandled_hotkey(struct ui_browser *browser, int key, int timeout, const char *help) { char kname[32]; key_name(key, kname, sizeof(kname)); return ui_browser__warning(browser, timeout, "\n'%s' key not associated%s!\n", kname, help ?: ""); } int ui_browser__help_window(struct ui_browser *browser, const char *text) { int key; while ((key = ui__help_window(text)) == K_RESIZE) ui_browser__handle_resize(browser); return key; } bool ui_browser__dialog_yesno(struct ui_browser *browser, const char *text) { int key; while ((key = ui__dialog_yesno(text)) == K_RESIZE) ui_browser__handle_resize(browser); return key == K_ENTER || toupper(key) == 'Y'; } void ui_browser__reset_index(struct ui_browser *browser) { browser->index = browser->top_idx = 0; browser->seek(browser, 0, SEEK_SET); } void __ui_browser__show_title(struct ui_browser *browser, const char *title) { SLsmg_gotorc(0, 0); ui_browser__set_color(browser, HE_COLORSET_ROOT); ui_browser__write_nstring(browser, title, browser->width + 1); } void ui_browser__show_title(struct ui_browser *browser, const char *title) { mutex_lock(&ui__lock); __ui_browser__show_title(browser, title); mutex_unlock(&ui__lock); } int ui_browser__show(struct ui_browser *browser, const char *title, const char *helpline, ...) { int err; va_list ap; if (browser->refresh_dimensions == NULL) browser->refresh_dimensions = ui_browser__refresh_dimensions; browser->refresh_dimensions(browser); mutex_lock(&ui__lock); __ui_browser__show_title(browser, title); free(browser->title); browser->title = strdup(title); zfree(&browser->helpline); va_start(ap, helpline); err = vasprintf(&browser->helpline, helpline, ap); va_end(ap); if (err > 0) ui_helpline__push(browser->helpline); mutex_unlock(&ui__lock); return err ? 0 : -1; } void ui_browser__hide(struct ui_browser *browser) { mutex_lock(&ui__lock); ui_helpline__pop(); zfree(&browser->helpline); zfree(&browser->title); mutex_unlock(&ui__lock); } static void ui_browser__scrollbar_set(struct ui_browser *browser) { int height = browser->height, h = 0, pct = 0, col = browser->width, row = 0; if (browser->nr_entries > 1) { pct = ((browser->index * (browser->height - 1)) / (browser->nr_entries - 1)); } SLsmg_set_char_set(1); while (h < height) { ui_browser__gotorc(browser, row++, col); SLsmg_write_char(h == pct ? SLSMG_DIAMOND_CHAR : SLSMG_CKBRD_CHAR); ++h; } SLsmg_set_char_set(0); } static int __ui_browser__refresh(struct ui_browser *browser) { int row; int width = browser->width; row = browser->refresh(browser); ui_browser__set_color(browser, HE_COLORSET_NORMAL); if (!browser->use_navkeypressed || browser->navkeypressed) ui_browser__scrollbar_set(browser); else width += 1; SLsmg_fill_region(browser->y + row + browser->extra_title_lines, browser->x, browser->rows - row, width, ' '); if (browser->nr_entries == 0 && browser->no_samples_msg) __ui__info_window(NULL, browser->no_samples_msg, NULL); return 0; } int ui_browser__refresh(struct ui_browser *browser) { mutex_lock(&ui__lock); __ui_browser__refresh(browser); mutex_unlock(&ui__lock); return 0; } /* * Here we're updating nr_entries _after_ we started browsing, i.e. we have to * forget about any reference to any entry in the underlying data structure, * that is why we do a SEEK_SET. Think about 'perf top' in the hists browser * after an output_resort and hist decay. */ void ui_browser__update_nr_entries(struct ui_browser *browser, u32 nr_entries) { off_t offset = nr_entries - browser->nr_entries; browser->nr_entries = nr_entries; if (offset < 0) { if (browser->top_idx < (u64)-offset) offset = -browser->top_idx; browser->index += offset; browser->top_idx += offset; } browser->top = NULL; browser->seek(browser, browser->top_idx, SEEK_SET); } int ui_browser__run(struct ui_browser *browser, int delay_secs) { int err, key; while (1) { off_t offset; mutex_lock(&ui__lock); err = __ui_browser__refresh(browser); SLsmg_refresh(); mutex_unlock(&ui__lock); if (err < 0) break; key = ui__getch(delay_secs); if (key == K_RESIZE) { ui__refresh_dimensions(false); browser->refresh_dimensions(browser); __ui_browser__show_title(browser, browser->title); ui_helpline__puts(browser->helpline); continue; } if (browser->use_navkeypressed && !browser->navkeypressed) { if (key == K_DOWN || key == K_UP || (browser->columns && (key == K_LEFT || key == K_RIGHT)) || key == K_PGDN || key == K_PGUP || key == K_HOME || key == K_END || key == ' ') { browser->navkeypressed = true; continue; } else return key; } switch (key) { case K_DOWN: if (browser->index == browser->nr_entries - 1) break; ++browser->index; if (browser->index == browser->top_idx + browser->rows) { ++browser->top_idx; browser->seek(browser, +1, SEEK_CUR); } break; case K_UP: if (browser->index == 0) break; --browser->index; if (browser->index < browser->top_idx) { --browser->top_idx; browser->seek(browser, -1, SEEK_CUR); } break; case K_RIGHT: if (!browser->columns) goto out; if (browser->horiz_scroll < browser->columns - 1) ++browser->horiz_scroll; break; case K_LEFT: if (!browser->columns) goto out; if (browser->horiz_scroll != 0) --browser->horiz_scroll; else goto out; break; case K_PGDN: case ' ': if (browser->top_idx + browser->rows > browser->nr_entries - 1) break; offset = browser->rows; if (browser->index + offset > browser->nr_entries - 1) offset = browser->nr_entries - 1 - browser->index; browser->index += offset; browser->top_idx += offset; browser->seek(browser, +offset, SEEK_CUR); break; case K_PGUP: if (browser->top_idx == 0) break; if (browser->top_idx < browser->rows) offset = browser->top_idx; else offset = browser->rows; browser->index -= offset; browser->top_idx -= offset; browser->seek(browser, -offset, SEEK_CUR); break; case K_HOME: ui_browser__reset_index(browser); break; case K_END: offset = browser->rows - 1; if (offset >= browser->nr_entries) offset = browser->nr_entries - 1; browser->index = browser->nr_entries - 1; browser->top_idx = browser->index - offset; browser->seek(browser, -offset, SEEK_END);