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termite
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termite/termite.cc

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#include <algorithm>
#include <cstdlib>
#include <cstring>
#include <functional>
#include <limits>
#include <memory>
#include <vector>
#include <set>
#include <gdk/gdkx.h>
#include <gtk/gtk.h>
#include <vte/vte.h>
#include <vte/vteaccess.h>
#include "url_regex.hh"
#include "util/memory.hh"
using namespace std::placeholders;
enum class overlay_mode {
hidden,
search,
rsearch,
completion,
urlselect
};
enum class vi_mode {
insert,
command,
visual,
visual_line,
visual_block
};
struct select_info {
vi_mode mode;
long begin_col;
long begin_row;
long origin_col;
long origin_row;
};
struct url_data {
url_data(char *u, long c, long r) : url(u, g_free), col(c), row(r) {}
std::unique_ptr<char, decltype(&g_free)> url;
long col, row;
};
struct search_panel_info {
VteTerminal *vte;
GtkWidget *entry;
GtkWidget *panel;
GtkWidget *da;
overlay_mode mode;
std::vector<url_data> url_list;
};
struct config_info {
gboolean dynamic_title, urgent_on_bell, clickable_url;
int tag;
};
struct keybind_info {
search_panel_info panel;
select_info select;
config_info config;
};
static char *browser_cmd[3] = {NULL};
static void launch_browser(char *url);
static void window_title_cb(VteTerminal *vte, gboolean *dynamic_title);
static gboolean key_press_cb(VteTerminal *vte, GdkEventKey *event, keybind_info *info);
static gboolean entry_key_press_cb(GtkEntry *entry, GdkEventKey *event, keybind_info *info);
static gboolean position_overlay_cb(GtkBin *overlay, GtkWidget *widget, GdkRectangle *alloc);
static gboolean button_press_cb(VteTerminal *vte, GdkEventButton *event, gboolean *clickable_url);
static void beep_cb(GtkWidget *vte, gboolean *urgent_on_bell);
static gboolean focus_cb(GtkWindow *window);
static GtkTreeModel *create_completion_model(VteTerminal *vte);
static void search(VteTerminal *vte, const char *pattern, bool reverse);
static void overlay_show(search_panel_info *info, overlay_mode mode, bool complete);
static void get_vte_padding(VteTerminal *vte, int *w, int *h);
static char *check_match(VteTerminal *vte, int event_x, int event_y);
static void load_config(GtkWindow *window, VteTerminal *vte, config_info *info,
const char **term, char **geometry);
static long first_row(VteTerminal *vte);
void launch_browser(char *url) {
browser_cmd[1] = url;
g_spawn_async(NULL, browser_cmd, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, NULL, NULL);
}
static void find_urls(VteTerminal *vte, search_panel_info *panel_info) {
GRegex *regex = g_regex_new(url_regex, G_REGEX_CASELESS, G_REGEX_MATCH_NOTEMPTY, NULL);
GArray *attributes = g_array_new(FALSE, FALSE, sizeof (vte_char_attributes));
char *content = vte_terminal_get_text(vte, NULL, NULL, attributes);
for (char *s_ptr = content, *saveptr; ; s_ptr = nullptr) {
const char *token = strtok_r(s_ptr, "\n", &saveptr);
if (!token) {
break;
}
GError *error = NULL;
GMatchInfo *info;
g_regex_match_full(regex, token, -1, 0, (GRegexMatchFlags)0, &info, &error);
while (g_match_info_matches(info)) {
int pos;
g_match_info_fetch_pos(info, 0, &pos, NULL);
const long first_row = g_array_index(attributes, vte_char_attributes, 0).row;
const auto attr = g_array_index(attributes, vte_char_attributes, token + pos - content);
panel_info->url_list.emplace_back(g_match_info_fetch(info, 0),
attr.column,
attr.row - first_row);
g_match_info_next(info, &error);
}
g_match_info_free(info);
if (error) {
g_printerr("Error while matching: %s\n", error->message);
g_error_free(error);
}
}
g_free(content);
g_regex_unref(regex);
g_array_free(attributes, TRUE);
}
static void launch_url(const char *text, search_panel_info *info) {
auto copy = make_unique(strdup(text), free);
for (char *s_ptr = copy.get(), *saveptr; ; s_ptr = nullptr) {
const char *token = strtok_r(s_ptr, ",", &saveptr);
if (!token) {
break;
}
char *end;
errno = 0;
unsigned long id = strtoul(token, &end, 10);
if (!errno && id && id <= info->url_list.size()) {
launch_browser(info->url_list[id - 1].url.get());
} else {
g_printerr("url hint invalid: %s\n", token);
}
}
}
static void draw_marker(cairo_t *cr, const char *font, long x, long y, int padding, unsigned id) {
char buffer[std::numeric_limits<unsigned>::digits10 + 1];
cairo_text_extents_t ext;
cairo_select_font_face(cr, font, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD);
cairo_set_font_size(cr, 9);
snprintf(buffer, sizeof(buffer), "%u", id);
cairo_text_extents(cr, buffer, &ext);
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_rectangle(cr, static_cast<double>(x), static_cast<double>(y),
ext.width + padding * 2, ext.height + padding * 2);
cairo_stroke_preserve(cr);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_fill(cr);
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_move_to(cr, static_cast<double>(x + padding) - ext.x_bearing,
static_cast<double>(y + padding) - ext.y_bearing);
cairo_show_text(cr, buffer);
}
static gboolean draw_cb(const search_panel_info *info, cairo_t *cr) {
if (!info->url_list.empty()) {
const PangoFontDescription *desc = vte_terminal_get_font(info->vte);
const char *font = pango_font_description_get_family(desc);
const long cw = vte_terminal_get_char_width(info->vte);
const long ch = vte_terminal_get_char_height(info->vte);
cairo_set_line_width(cr, 1);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_stroke(cr);
for (unsigned i = 0; i < info->url_list.size(); i++) {
const url_data &data = info->url_list[i];
const long x = data.col * cw;
const long y = data.row * ch;
draw_marker(cr, font, x, y, 3, i + 1);
}
}
return FALSE;
}
static void update_selection(VteTerminal *vte, const select_info *select) {
vte_terminal_select_none(vte);
if (select->mode == vi_mode::command) {
return;
}
const long n_columns = vte_terminal_get_column_count(vte);
long cursor_col, cursor_row;
vte_terminal_get_cursor_position(vte, &cursor_col, &cursor_row);
vte_terminal_set_selection_block_mode(vte, select->mode == vi_mode::visual_block);
if (select->mode == vi_mode::visual) {
const long begin = select->begin_row * n_columns + select->begin_col;
const long end = cursor_row * n_columns + cursor_col;
if (begin < end) {
vte_terminal_select_text(vte, select->begin_col, select->begin_row,
cursor_col, cursor_row);
} else {
vte_terminal_select_text(vte, cursor_col, cursor_row,
select->begin_col, select->begin_row);
}
} else if (select->mode == vi_mode::visual_line) {
vte_terminal_select_text(vte, 0,
std::min(select->begin_row, cursor_row),
n_columns - 1,
std::max(select->begin_row, cursor_row));
} else if (select->mode == vi_mode::visual_block) {
vte_terminal_select_text(vte,
std::min(select->begin_col, cursor_col),
std::min(select->begin_row, cursor_row),
std::max(select->begin_col, cursor_col),
std::max(select->begin_row, cursor_row));
}
vte_terminal_copy_primary(vte);
}
static void enter_command_mode(VteTerminal *vte, select_info *select) {
vte_terminal_disconnect_pty_read(vte);
select->mode = vi_mode::command;
vte_terminal_get_cursor_position(vte, &select->origin_col, &select->origin_row);
update_selection(vte, select);
}
static void exit_command_mode(VteTerminal *vte, select_info *select) {
vte_terminal_set_cursor_position(vte, select->origin_col, select->origin_row);
vte_terminal_connect_pty_read(vte);
vte_terminal_select_none(vte);
select->mode = vi_mode::insert;
}
static void toggle_visual(VteTerminal *vte, select_info *select, vi_mode mode) {
if (select->mode == mode) {
select->mode = vi_mode::command;
} else {
if (select->mode == vi_mode::command) {
vte_terminal_get_cursor_position(vte, &select->begin_col, &select->begin_row);
}
select->mode = mode;
}
update_selection(vte, select);
}
static long first_row(VteTerminal *vte) {
GtkAdjustment *adjust = gtk_scrollable_get_vadjustment(GTK_SCROLLABLE(vte));
return (long)gtk_adjustment_get_lower(adjust);
}
static long last_row(VteTerminal *vte) {
GtkAdjustment *adjust = gtk_scrollable_get_vadjustment(GTK_SCROLLABLE(vte));
return (long)gtk_adjustment_get_upper(adjust) - 1;
}
static void update_scroll(VteTerminal *vte) {
GtkAdjustment *adjust = gtk_scrollable_get_vadjustment(GTK_SCROLLABLE(vte));
const double scroll_row = gtk_adjustment_get_value(adjust);
const long n_rows = vte_terminal_get_row_count(vte);
long cursor_row;
vte_terminal_get_cursor_position(vte, nullptr, &cursor_row);
if (cursor_row < scroll_row) {
gtk_adjustment_set_value(adjust, (double)cursor_row);
} else if (cursor_row - n_rows >= (long)scroll_row) {
gtk_adjustment_set_value(adjust, (double)(cursor_row - n_rows + 1));
}
}
static void move(VteTerminal *vte, select_info *select, long col, long row) {
const long end_col = vte_terminal_get_column_count(vte) - 1;
long cursor_col, cursor_row;
vte_terminal_get_cursor_position(vte, &cursor_col, &cursor_row);
vte_terminal_set_cursor_position(vte,
CLAMP(cursor_col + col, 0, end_col),
CLAMP(cursor_row + row, first_row(vte), last_row(vte)));
update_scroll(vte);
update_selection(vte, select);
}
static void move_to_row_start(VteTerminal *vte, select_info *select, long row) {
vte_terminal_set_cursor_position(vte, 0, row);
update_scroll(vte);
update_selection(vte, select);
}
static void open_selection(VteTerminal *vte) {
if (browser_cmd[0]) {
AtkText *text = ATK_TEXT(vte_terminal_accessible_new(vte));
char *selection = atk_text_get_selection(text, 0, NULL, NULL);
if (selection && selection[0]) {
launch_browser(selection);
}
g_free(selection);
} else {
g_printerr("no browser to open url");
}
}
template<typename F>
static void move_backward(VteTerminal *vte, select_info *select, F is_word) {
long cursor_col, cursor_row;
vte_terminal_get_cursor_position(vte, &cursor_col, &cursor_row);
char *content = vte_terminal_get_text_range(vte, cursor_row, 0,
cursor_row, cursor_col,
NULL, NULL, NULL);
if (!content) {
return;
}
long length;
gunichar *codepoints = g_utf8_to_ucs4(content, -1, NULL, &length, NULL);
if (!codepoints) {
return;
}
bool in_word = false;
for (long i = length - 2; i > 0; i--) {
if (!is_word(codepoints[i - 1])) {
if (in_word) {
break;
}
} else {
in_word = true;
}
cursor_col--;
}
vte_terminal_set_cursor_position(vte, cursor_col, cursor_row);
update_selection(vte, select);
g_free(codepoints);
g_free(content);
}
static void move_backward_word(VteTerminal *vte, select_info *select) {
move_backward(vte, select, std::bind(vte_terminal_is_word_char, vte, _1));
}
static void move_backward_blank_word(VteTerminal *vte, select_info *select) {
move_backward(vte, select, std::not1(std::ref(g_unichar_isspace)));
}
template<typename F>
static void move_forward(VteTerminal *vte, select_info *select, F is_word) {
long cursor_col, cursor_row;
vte_terminal_get_cursor_position(vte, &cursor_col, &cursor_row);
const long end_col = vte_terminal_get_column_count(vte) - 1;
char *content = vte_terminal_get_text_range(vte, cursor_row, cursor_col,
cursor_row, end_col,
NULL, NULL, NULL);
if (!content) {
return;
}
long length;
gunichar *codepoints = g_utf8_to_ucs4(content, -1, NULL, &length, NULL);
if (!codepoints) {
return;
}
// prevent going past the end (get_text_range adds a \n)
if (codepoints[length - 1] == '\n') {
length--;
}
bool end_of_word = false;
for (long i = 1; i < length; i++) {
if (is_word(codepoints[i - 1])) {
if (end_of_word) {
break;
}
} else {
end_of_word = true;
}
cursor_col++;
}
vte_terminal_set_cursor_position(vte, cursor_col, cursor_row);
update_selection(vte, select);
g_free(codepoints);
g_free(content);
}
static void move_forward_word(VteTerminal *vte, select_info *select) {
move_forward(vte, select, std::bind(vte_terminal_is_word_char, vte, _1));
}
static void move_forward_blank_word(VteTerminal *vte, select_info *select) {
move_forward(vte, select, std::not1(std::ref(g_unichar_isspace)));
}
static void set_cursor_column(VteTerminal *vte, const select_info *select, long column) {
long cursor_row;
vte_terminal_get_cursor_position(vte, nullptr, &cursor_row);
vte_terminal_set_cursor_position(vte, column, cursor_row);
update_selection(vte, select);
}
/* {{{ CALLBACKS */
void window_title_cb(VteTerminal *vte, gboolean *dynamic_title) {
const char * const title = *dynamic_title ? vte_terminal_get_window_title(vte) : NULL;
gtk_window_set_title(GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(vte))),
title ? title : "termite");
}
gboolean key_press_cb(VteTerminal *vte, GdkEventKey *event, keybind_info *info) {
const guint modifiers = event->state & gtk_accelerator_get_default_mod_mask();
if (info->select.mode != vi_mode::insert) {
if (modifiers == GDK_CONTROL_MASK) {
switch (gdk_keyval_to_lower(event->keyval)) {
case GDK_KEY_v:
toggle_visual(vte, &info->select, vi_mode::visual_block);
break;
case GDK_KEY_Left:
move_backward_blank_word(vte, &info->select);
break;
case GDK_KEY_Right:
move_forward_blank_word(vte, &info->select);
break;
}
return TRUE;
}
if (modifiers == GDK_SHIFT_MASK) {
switch (event->keyval) {
case GDK_KEY_Left:
move_backward_word(vte, &info->select);
return TRUE;
case GDK_KEY_Right:
move_forward_word(vte, &info->select);
return TRUE;
}
}
switch (event->keyval) {
case GDK_KEY_Escape:
exit_command_mode(info->panel.vte, &info->select);
gtk_widget_hide(info->panel.da);
gtk_widget_hide(info->panel.panel);
info->panel.url_list.clear();
break;
case GDK_KEY_Left:
case GDK_KEY_h:
move(vte, &info->select, -1, 0);
break;
case GDK_KEY_Down:
case GDK_KEY_j:
move(vte, &info->select, 0, 1);
break;
case GDK_KEY_Up:
case GDK_KEY_k:
move(vte, &info->select, 0, -1);
break;
case GDK_KEY_Right:
case GDK_KEY_l:
move(vte, &info->select, 1, 0);
break;
case GDK_KEY_b:
move_backward_word(vte, &info->select);
break;
case GDK_KEY_B:
move_backward_blank_word(vte, &info->select);
break;
case GDK_KEY_w:
move_forward_word(vte, &info->select);
break;
case GDK_KEY_W:
move_forward_blank_word(vte, &info->select);
break;
case GDK_KEY_asciicircum:
set_cursor_column(vte, &info->select, 0);
break;
case GDK_KEY_dollar:
set_cursor_column(vte, &info->select, vte_terminal_get_column_count(vte) - 1);
break;
case GDK_KEY_g:
move_to_row_start(vte, &info->select, first_row(vte));
break;
case GDK_KEY_G:
move_to_row_start(vte, &info->select, last_row(vte));
break;
case GDK_KEY_v:
toggle_visual(vte, &info->select, vi_mode::visual);
break;
case GDK_KEY_V:
toggle_visual(vte, &info->select, vi_mode::visual_line);
break;
case GDK_KEY_y:
vte_terminal_copy_clipboard(vte);
break;
case GDK_KEY_slash:
overlay_show(&info->panel, overlay_mode::search, true);
break;
case GDK_KEY_question:
overlay_show(&info->panel, overlay_mode::rsearch, true);
break;
case GDK_KEY_n:
vte_terminal_search_find_next(vte);
vte_terminal_copy_primary(vte);
break;
case GDK_KEY_N:
vte_terminal_search_find_previous(vte);
vte_terminal_copy_primary(vte);
break;
case GDK_KEY_u:
search(vte, url_regex, false);
break;
case GDK_KEY_U:
search(vte, url_regex, true);
break;
case GDK_KEY_o:
open_selection(vte);
break;
case GDK_KEY_Return:
open_selection(vte);
exit_command_mode(vte, &info->select);
break;
case GDK_KEY_x:
find_urls(vte, &info->panel);
gtk_widget_show(info->panel.da);
overlay_show(&info->panel, overlay_mode::urlselect, false);
break;
}
return TRUE;
}
if (modifiers == (GDK_CONTROL_MASK|GDK_SHIFT_MASK)) {
switch (gdk_keyval_to_lower(event->keyval)) {
case GDK_KEY_space:
enter_command_mode(vte, &info->select);
return TRUE;
case GDK_KEY_c:
vte_terminal_copy_clipboard(vte);
return TRUE;
case GDK_KEY_v:
vte_terminal_paste_clipboard(vte);
return TRUE;
case GDK_KEY_Escape:
load_config(GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(vte))),
vte, &info->config, NULL, NULL);
return TRUE;
}
} else if (modifiers == GDK_CONTROL_MASK && event->keyval == GDK_KEY_Tab) {
overlay_show(&info->panel, overlay_mode::completion, true);
return TRUE;
}
return FALSE;
}
static void synthesize_keypress(GtkWidget *widget, unsigned keyval) {
GdkEvent new_event;
new_event.key.type = GDK_KEY_PRESS;
new_event.key.window = gtk_widget_get_parent_window(widget);
new_event.key.send_event = TRUE;
new_event.key.time = GDK_CURRENT_TIME;
new_event.key.keyval = keyval;
new_event.key.state = GDK_KEY_PRESS_MASK;
new_event.key.length = 0;
new_event.key.string = nullptr;
new_event.key.hardware_keycode = 0;
new_event.key.group = 0;
gdk_event_put(&new_event);
}
gboolean entry_key_press_cb(GtkEntry *entry, GdkEventKey *event, keybind_info *info) {
gboolean ret = FALSE;
switch (event->keyval) {
case GDK_KEY_Tab:
synthesize_keypress(GTK_WIDGET(entry), GDK_KEY_Down);
return TRUE;
case GDK_KEY_ISO_Left_Tab:
synthesize_keypress(GTK_WIDGET(entry), GDK_KEY_Up);
return TRUE;
case GDK_KEY_Down:
// this stops the down key from leaving the GtkEntry...
event->hardware_keycode = 0;
break;
case GDK_KEY_Escape:
ret = TRUE;
break;
case GDK_KEY_Return: {
const char *text = gtk_entry_get_text(entry);
switch (info->panel.mode) {
case overlay_mode::search:
search(info->panel.vte, text, false);
break;
case overlay_mode::rsearch:
search(info->panel.vte, text, true);
break;
case overlay_mode::completion:
vte_terminal_feed_child(info->panel.vte, text, -1);
break;
case overlay_mode::urlselect:
launch_url(text, &info->panel);
break;
case overlay_mode::hidden:
break;
}
ret = TRUE;
}
}
if (ret) {
if (info->panel.mode == overlay_mode::urlselect) {
exit_command_mode(info->panel.vte, &info->select);
gtk_widget_hide(info->panel.da);
info->panel.url_list.clear();
}
info->panel.mode = overlay_mode::hidden;
gtk_widget_hide(info->panel.panel);
gtk_widget_grab_focus(GTK_WIDGET(info->panel.vte));
}
return ret;
}
gboolean position_overlay_cb(GtkBin *overlay, GtkWidget *widget, GdkRectangle *alloc) {
GtkWidget *vte = gtk_bin_get_child(overlay);
const int width = gtk_widget_get_allocated_width(vte);
const int height = gtk_widget_get_allocated_height(vte);
GtkRequisition req;
gtk_widget_get_preferred_size(widget, NULL, &req);
alloc->x = width - req.width - 40;
alloc->y = 0;
alloc->width = std::min(width, req.width);
alloc->height = std::min(height, req.height);
return TRUE;
}
gboolean button_press_cb(VteTerminal *vte, GdkEventButton *event, gboolean *clickable_url) {
if (*clickable_url) {
char *match = check_match(vte, (int)event->x, (int)event->y);
if (event->button == 1 && event->type == GDK_BUTTON_PRESS && match) {
launch_browser(match);
g_free(match);
return TRUE;
}
}
return FALSE;
}
void beep_cb(GtkWidget *vte, gboolean *urgent_on_bell) {
if (*urgent_on_bell) {
gtk_window_set_urgency_hint(GTK_WINDOW(gtk_widget_get_toplevel(vte)), TRUE);
}
}
gboolean focus_cb(GtkWindow *window) {
gtk_window_set_urgency_hint(window, FALSE);
return FALSE;
}
/* }}} */
GtkTreeModel *create_completion_model(VteTerminal *vte) {
GtkListStore *store = gtk_list_store_new(1, G_TYPE_STRING);
long end_row, end_col;
vte_terminal_get_cursor_position(vte, &end_col, &end_row);
char *content = vte_terminal_get_text_range(vte, 0, 0, end_row, end_col,
NULL, NULL, NULL);
if (!content) {
g_printerr("no content returned for completion\n");
return GTK_TREE_MODEL(store);
}
auto less = [](const char *a, const char *b) { return strcmp(a, b) < 0; };
std::set<const char *, decltype(less)> tokens(less);
for (char *s_ptr = content, *saveptr; ; s_ptr = nullptr) {
const char *token = strtok_r(s_ptr, " \n\t", &saveptr);
if (!token) {
break;
}
tokens.insert(token);
}
for (const char *token : tokens) {
GtkTreeIter iter;
gtk_list_store_append(store, &iter);
gtk_list_store_set(store, &iter, 0, token, -1);
}
g_free(content);
return GTK_TREE_MODEL(store);
}
void search(VteTerminal *vte, const char *pattern, bool reverse) {
GRegex *regex = vte_terminal_search_get_gregex(vte);
if (regex) g_regex_unref(regex);
regex = g_regex_new(pattern, (GRegexCompileFlags)0, (GRegexMatchFlags)0, NULL);
vte_terminal_search_set_gregex(vte, regex);
if (!reverse) {
vte_terminal_search_find_next(vte);
} else {
vte_terminal_search_find_previous(vte);
}
vte_terminal_copy_primary(vte);
}
void overlay_show(search_panel_info *info, overlay_mode mode, bool complete) {
if (complete) {
GtkEntryCompletion *completion = gtk_entry_completion_new();
gtk_entry_set_completion(GTK_ENTRY(info->entry), completion);
g_object_unref(completion);
GtkTreeModel *completion_model = create_completion_model(info->vte);
gtk_entry_completion_set_model(completion, completion_model);
g_object_unref(completion_model);
gtk_entry_completion_set_inline_selection(completion, TRUE);
gtk_entry_completion_set_text_column(completion, 0);
}
gtk_entry_set_text(GTK_ENTRY(info->entry), "");
info->mode = mode;
gtk_widget_show(info->panel);
gtk_widget_grab_focus(info->entry);
}
void get_vte_padding(VteTerminal *vte, int *w, int *h) {
GtkBorder *border = NULL;
gtk_widget_style_get(GTK_WIDGET(vte), "inner-border", &border, NULL);
if (!border) {
g_warning("VTE's inner-border property unavailable");
*w = *h = 0;
} else {
*w = border->left + border->right;
*h = border->top + border->bottom;
gtk_border_free(border);
}
}
char *check_match(VteTerminal *vte, int event_x, int event_y) {
int xpad, ypad, tag;
get_vte_padding(vte, &xpad, &ypad);
return vte_terminal_match_check(vte,
(event_x - ypad) / vte_terminal_get_char_width(vte),
(event_y - ypad) / vte_terminal_get_char_height(vte),
&tag);
}
/* {{{ CONFIG LOADING */
template<typename T>
static bool get_config(T (*get)(GKeyFile *, const char *, const char *, GError **),
GKeyFile *config, const char *group, const char *key, T *value) {
GError *error = nullptr;
*value = get(config, group, key, &error);
if (error) {
g_error_free(error);
return false;
}
return true;
}
auto get_config_boolean(std::bind(get_config<gboolean>, g_key_file_get_boolean,
_1, _2, _3, _4));
auto get_config_integer(std::bind(get_config<int>, g_key_file_get_integer,
_1, _2, _3, _4));
auto get_config_string(std::bind(get_config<char *>, g_key_file_get_string,
_1, _2, _3, _4));
auto get_config_double(std::bind(get_config<double>, g_key_file_get_double,
_1, _2, _3, _4));
static bool get_config_color(GKeyFile *config, const char *key, GdkColor *color) {
char *cfgstr;
bool success = false;
if (get_config_string(config, "colors", key, &cfgstr)) {
if (gdk_color_parse(cfgstr, color)) {
success = true;
} else {
g_printerr("invalid color string: %s\n", cfgstr);
}
g_free(cfgstr);
}
return success;
}
static void load_config(GtkWindow *window, VteTerminal *vte, config_info *info,
const char **term, char **geometry) {
const char * const filename = "termite.cfg";
char *path = g_build_filename(g_get_user_config_dir(), filename, nullptr);
GKeyFile *config = g_key_file_new();
if ((g_key_file_load_from_file(config, path, G_KEY_FILE_NONE, NULL) ||
g_key_file_load_from_dirs(config, filename,
const_cast<const char **>(g_get_system_config_dirs()),
NULL, G_KEY_FILE_NONE, NULL))) {
gboolean cfgbool;
double cfgdouble;
int cfgint;
char *cfgstr;
if (geometry && get_config_string(config, "options", "geometry", &cfgstr)) {
*geometry = cfgstr;
}
if (term && get_config_string(config, "options", "term", &cfgstr)) {
*term = cfgstr;
}
if (get_config_boolean(config, "options", "resize_grip", &cfgbool)) {
gtk_window_set_has_resize_grip(window, cfgbool);
}
if (get_config_boolean(config, "options", "scroll_on_output", &cfgbool)) {
vte_terminal_set_scroll_on_output(vte, cfgbool);
}
if (get_config_boolean(config, "options", "scroll_on_keystroke", &cfgbool)) {
vte_terminal_set_scroll_on_keystroke(vte, cfgbool);
}
if (get_config_boolean(config, "options", "audible_bell", &cfgbool)) {
vte_terminal_set_audible_bell(vte, cfgbool);
}
if (get_config_boolean(config, "options", "visible_bell", &cfgbool)) {
vte_terminal_set_visible_bell(vte, cfgbool);
}
if (get_config_boolean(config, "options", "mouse_autohide", &cfgbool)) {
vte_terminal_set_mouse_autohide(vte, cfgbool);
}
if (get_config_boolean(config, "options", "allow_bold", &cfgbool)) {
vte_terminal_set_allow_bold(vte, cfgbool);
}
if (get_config_boolean(config, "options", "dynamic_title", &cfgbool)) {
info->dynamic_title = cfgbool;
}
if (get_config_boolean(config, "options", "urgent_on_bell", &cfgbool)) {
info->urgent_on_bell = cfgbool;
}
if (get_config_boolean(config, "options", "search_wrap", &cfgbool)) {
vte_terminal_search_set_wrap_around(vte, cfgbool);
}
if (get_config_boolean(config, "options", "clickable_url", &cfgbool)) {
info->clickable_url = cfgbool;
}
if (info->clickable_url) {
info->tag =
vte_terminal_match_add_gregex(vte,
g_regex_new(url_regex,
G_REGEX_CASELESS,
G_REGEX_MATCH_NOTEMPTY,
NULL),
(GRegexMatchFlags)0);
vte_terminal_match_set_cursor_type(vte, info->tag, GDK_HAND2);
} else if (info->tag != -1) {
vte_terminal_match_remove(vte, info->tag);
info->tag = -1;
}
g_free(browser_cmd[0]);
if (get_config_string(config, "options", "browser", &cfgstr)) {
browser_cmd[0] = cfgstr;
} else {
browser_cmd[0] = g_strdup(g_getenv("BROWSER"));
if (!browser_cmd[0]) info->clickable_url = false;
}
if (get_config_string(config, "options", "font", &cfgstr)) {
vte_terminal_set_font_from_string(vte, cfgstr);
g_free(cfgstr);
}
if (get_config_string(config, "options", "word_chars", &cfgstr)) {
vte_terminal_set_word_chars(vte, cfgstr);
g_free(cfgstr);
}
if (get_config_integer(config, "options", "scrollback_lines", &cfgint)) {
vte_terminal_set_scrollback_lines(vte, cfgint);
}
if (get_config_string(config, "options", "cursor_blink", &cfgstr)) {
if (!g_ascii_strcasecmp(cfgstr, "system")) {
vte_terminal_set_cursor_blink_mode(vte, VTE_CURSOR_BLINK_SYSTEM);
} else if (!g_ascii_strcasecmp(cfgstr, "on")) {
vte_terminal_set_cursor_blink_mode(vte, VTE_CURSOR_BLINK_ON);
} else if (!g_ascii_strcasecmp(cfgstr, "off")) {
vte_terminal_set_cursor_blink_mode(vte, VTE_CURSOR_BLINK_OFF);
}
g_free(cfgstr);
}
if (get_config_string(config, "options", "cursor_shape", &cfgstr)) {
if (!g_ascii_strcasecmp(cfgstr, "block")) {
vte_terminal_set_cursor_shape(vte, VTE_CURSOR_SHAPE_BLOCK);
} else if (!g_ascii_strcasecmp(cfgstr, "ibeam")) {
vte_terminal_set_cursor_shape(vte, VTE_CURSOR_SHAPE_IBEAM);
} else if (!g_ascii_strcasecmp(cfgstr, "underline")) {
vte_terminal_set_cursor_shape(vte, VTE_CURSOR_SHAPE_UNDERLINE);
}
g_free(cfgstr);
}
if (get_config_string(config, "options", "icon_name", &cfgstr)) {
gtk_window_set_icon_name(window, cfgstr);
g_free(cfgstr);
}
if (get_config_double(config, "options", "transparency", &cfgdouble)) {
vte_terminal_set_background_saturation(vte, cfgdouble);
get_config_boolean(config, "options", "pseudo_transparency", &cfgbool);
vte_terminal_set_background_transparent(vte, cfgbool);
GdkScreen *screen = gtk_widget_get_screen(GTK_WIDGET(window));
GdkVisual *visual;
if (cfgdouble > 0.0 && !cfgbool && (visual = gdk_screen_get_rgba_visual(screen))) {
vte_terminal_set_opacity(vte, (guint16)(0xffff * (1 - cfgdouble)));
} else {
visual = gdk_screen_get_system_visual(screen);
vte_terminal_set_opacity(vte, G_MAXUINT16);
}
if (visual != gtk_widget_get_visual(GTK_WIDGET(window))) {
gtk_widget_set_visual(GTK_WIDGET(window), visual);
// TODO: need to make dynamic changes to the visual work
// the obvious way is simply to hide the window and then restore shown widgets
}
}
const long palette_size = 255;
GdkColor color, palette[palette_size];
char color_key[] = "color000";
for (unsigned i = 0; i < palette_size; i++) {
snprintf(color_key, sizeof color_key, "color%u", i);
if (!get_config_color(config, color_key, &palette[i])) {
if (i < 16) {
palette[i].blue = (i & 4) ? 0xc000 : 0;
palette[i].green = (i & 2) ? 0xc000 : 0;
palette[i].red = (i & 1) ? 0xc000 : 0;
if (i > 7) {
palette[i].blue = (guint16)(palette[i].blue + 0x3fff);
palette[i].green = (guint16)(palette[i].green + 0x3fff);
palette[i].red = (guint16)(palette[i].red + 0x3fff);
}
} else if (i < 232) {
const unsigned j = i - 16;
const unsigned r = j / 36, g = (j / 6) % 6, b = j % 6;
const unsigned red = (r == 0) ? 0 : r * 40 + 55;
const unsigned green = (g == 0) ? 0 : g * 40 + 55;
const unsigned blue = (b == 0) ? 0 : b * 40 + 55;
palette[i].red = (guint16)(red | red << 8);
palette[i].green = (guint16)(green | green << 8);
palette[i].blue = (guint16)(blue | blue << 8);
} else if (i < 256) {
const unsigned shade = 8 + (i - 232) * 10;
palette[i].red = palette[i].green = palette[i].blue = (guint16)(shade | shade << 8);
}
}
}
vte_terminal_set_colors(vte, nullptr, nullptr, palette, palette_size);
if (get_config_color(config, "foreground", &color)) {
vte_terminal_set_color_foreground(vte, &color);
}
if (get_config_color(config, "foreground_bold", &color)) {
vte_terminal_set_color_bold(vte, &color);
}
if (get_config_color(config, "foreground_dim", &color)) {
vte_terminal_set_color_dim(vte, &color);
}
if (get_config_color(config, "background", &color)) {
vte_terminal_set_color_background(vte, &color);
vte_terminal_set_background_tint_color(vte, &color);
}
if (get_config_color(config, "cursor", &color)) {
vte_terminal_set_color_cursor(vte, &color);
}
if (get_config_color(config, "highlight", &color)) {
vte_terminal_set_color_highlight(vte, &color);
}
}
g_free(path);
g_key_file_free(config);
}/*}}}*/
static void exit_with_status(VteTerminal *vte) {
gtk_main_quit();
exit(vte_terminal_get_child_exit_status(vte));
}
int main(int argc, char **argv) {
GError *error = NULL;
const char *term = "xterm-termite";
const char *directory = nullptr;
gboolean version = FALSE;
GOptionContext *context = g_option_context_new(NULL);
char *role = NULL, *geometry = NULL, *execute = NULL;
const GOptionEntry entries[] = {
{"role", 'r', 0, G_OPTION_ARG_STRING, &role, "The role to use", "ROLE"},
{"geometry", 0, 0, G_OPTION_ARG_STRING, &geometry, "Window geometry", "GEOMETRY"},
{"directory", 'd', 0, G_OPTION_ARG_STRING, &directory, "Change to directory", "DIRECTORY"},
{"exec", 'e', 0, G_OPTION_ARG_STRING, &execute, "Command to execute", "COMMAND"},
{"version", 'v', 0, G_OPTION_ARG_NONE, &version, "Version info", NULL},
{}
};
g_option_context_add_main_entries(context, entries, NULL);
g_option_context_add_group(context, gtk_get_option_group(TRUE));
if (!g_option_context_parse(context, &argc, &argv, &error)) {
g_printerr("option parsing failed: %s\n", error->message);
return EXIT_FAILURE;
}
if (version) {
g_print("termite %s\n", TERMITE_VERSION);
return EXIT_SUCCESS;
}
if (directory) {
if (chdir(directory) == -1) {
perror("chdir");
return EXIT_FAILURE;
}
}
GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
GtkWidget *panel_overlay = gtk_overlay_new();
GtkWidget *hint_overlay = gtk_overlay_new();
GtkWidget *vte_widget = vte_terminal_new();
VteTerminal *vte = VTE_TERMINAL(vte_widget);
if (role) {
gtk_window_set_role(GTK_WINDOW(window), role);
g_free(role);
}
char **command_argv;
char *default_argv[2] = {NULL, NULL};
if (execute) {
int argcp;
char **argvp;
g_shell_parse_argv(execute, &argcp, &argvp, &error);
if (error) {
g_printerr("Failed to parse command: %s\n", error->message);
return EXIT_FAILURE;
}
command_argv = argvp;
} else {
default_argv[0] = vte_terminal_get_user_shell_with_fallback();
command_argv = default_argv;
}
VtePty *pty = vte_terminal_pty_new(vte, VTE_PTY_DEFAULT, &error);
if (!pty) {
g_printerr("Failed to create pty: %s\n", error->message);
return EXIT_FAILURE;
}
keybind_info info = {
{vte, gtk_entry_new(),
gtk_alignment_new(0, 0, 1, 1),
gtk_drawing_area_new(),
overlay_mode::hidden},
{vi_mode::insert, 0, 0, 0, 0},
{FALSE, FALSE, FALSE, -1}
};
load_config(GTK_WINDOW(window), vte, &info.config, &term, &geometry);
vte_terminal_set_pty_object(vte, pty);
vte_pty_set_term(pty, term);
GdkRGBA transparent = {0, 0, 0, 0};
gtk_widget_override_background_color(hint_overlay, GTK_STATE_FLAG_NORMAL, &transparent);
gtk_widget_override_background_color(info.panel.da, GTK_STATE_FLAG_NORMAL, &transparent);
gtk_widget_set_halign(info.panel.da, GTK_ALIGN_FILL);
gtk_widget_set_valign(info.panel.da, GTK_ALIGN_FILL);
gtk_overlay_add_overlay(GTK_OVERLAY(hint_overlay), info.panel.da);
gtk_alignment_set_padding(GTK_ALIGNMENT(info.panel.panel), 5, 5, 5, 5);
gtk_overlay_add_overlay(GTK_OVERLAY(panel_overlay), info.panel.panel);
gtk_widget_set_halign(info.panel.entry, GTK_ALIGN_START);
gtk_widget_set_valign(info.panel.entry, GTK_ALIGN_END);
gtk_container_add(GTK_CONTAINER(info.panel.panel), info.panel.entry);
gtk_container_add(GTK_CONTAINER(panel_overlay), hint_overlay);
gtk_container_add(GTK_CONTAINER(hint_overlay), vte_widget);
gtk_container_add(GTK_CONTAINER(window), panel_overlay);
g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
g_signal_connect(vte, "child-exited", G_CALLBACK(exit_with_status), NULL);
g_signal_connect(vte, "key-press-event", G_CALLBACK(key_press_cb), &info);
g_signal_connect(info.panel.entry, "key-press-event", G_CALLBACK(entry_key_press_cb), &info);
g_signal_connect(panel_overlay, "get-child-position", G_CALLBACK(position_overlay_cb), NULL);
g_signal_connect(vte, "button-press-event", G_CALLBACK(button_press_cb), &info.config.clickable_url);
g_signal_connect(vte, "beep", G_CALLBACK(beep_cb), &info.config.urgent_on_bell);
g_signal_connect_swapped(info.panel.da, "draw", G_CALLBACK(draw_cb), &info.panel);
g_signal_connect(window, "focus-in-event", G_CALLBACK(focus_cb), NULL);
g_signal_connect(window, "focus-out-event", G_CALLBACK(focus_cb), NULL);
g_signal_connect(vte, "window-title-changed", G_CALLBACK(window_title_cb),
&info.config.dynamic_title);
window_title_cb(vte, &info.config.dynamic_title);
if (geometry) {
gtk_widget_show_all(panel_overlay);
gtk_widget_show_all(info.panel.panel);
if (!gtk_window_parse_geometry(GTK_WINDOW(window), geometry)) {
g_printerr("Invalid geometry string: %s\n", geometry);
}
g_free(geometry);
}
gtk_widget_grab_focus(vte_widget);
gtk_widget_show_all(window);
gtk_widget_hide(info.panel.panel);
gtk_widget_hide(info.panel.da);
GdkWindow *gdk_window = gtk_widget_get_window(window);
if (!gdk_window) {
g_printerr("no window");
return EXIT_FAILURE;
}
char xid_s[std::numeric_limits<long unsigned>::digits10 + 1];
snprintf(xid_s, sizeof xid_s, "%lu", GDK_WINDOW_XID(gdk_window));
char **env = g_get_environ();
env = g_environ_setenv(env, "WINDOWID", xid_s, TRUE);
env = g_environ_setenv(env, "TERM", term, TRUE);
GPid ppid;
if (g_spawn_async(NULL, command_argv, env,
(GSpawnFlags)(G_SPAWN_DO_NOT_REAP_CHILD | G_SPAWN_SEARCH_PATH),
(GSpawnChildSetupFunc)vte_pty_child_setup, pty,
&ppid, &error)) {
vte_terminal_watch_child(vte, ppid);
} else {
g_printerr("The new terminal's command failed to run: %s\n", error->message);
return EXIT_FAILURE;
}
int width, height, padding_w, padding_h;
long char_width = vte_terminal_get_char_width(vte);
long char_height = vte_terminal_get_char_height(vte);
gtk_window_get_size(GTK_WINDOW(window), &width, &height);
get_vte_padding(vte, &padding_w, &padding_h);
vte_terminal_set_size(vte,
(width - padding_w) / char_width,
(height - padding_h) / char_height);
g_strfreev(env);
gtk_main();
return EXIT_FAILURE; // child process did not exit
}
// vim: et:sts=4:sw=4:cino=(0
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