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termite.cc
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/*
* Copyright (C) 2013 Daniel Micay
*
* This is free software; you can redistribute it and/or modify it under
* the terms of the GNU Library General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <algorithm>
#include <array>
#include <cstdlib>
#include <cstring>
#include <functional>
#include <limits>
#include <memory>
#include <vector>
#include <set>
#include <string>
#include <gdk/gdkx.h>
#include <gtk/gtk.h>
#include <vte/vte.h>
#include <vte/vteaccess.h>
#include "url_regex.hh"
#include "util/clamp.hh"
#include "util/maybe.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;
char *fulltext;
};
struct hint_info {
PangoFontDescription *font;
cairo_pattern_t *fg, *bg, *af, *ab, *border;
double padding, border_width, roundness;
};
struct config_info {
hint_info hints;
char *browser;
gboolean dynamic_title, urgent_on_bell, clickable_url, opacity_set, pseudo_transparency;
int tag;
char *config_file;
};
struct keybind_info {
search_panel_info panel;
select_info select;
config_info config;
};
struct draw_cb_info {
search_panel_info *panel;
hint_info *hints;
};
static void launch_browser(char *browser, char *url);
static void set_opacity(GtkWidget *window, VteTerminal *vte, double opacity, gboolean pseudo);
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, const config_info *info);
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,
char **geometry);
static void set_config(GtkWindow *window, VteTerminal *vte, config_info *info,
char **geometry, GKeyFile *config);
static long first_row(VteTerminal *vte);
void launch_browser(char *browser, char *url) {
char *browser_cmd[3] = {browser, url, nullptr};
g_spawn_async(nullptr, browser_cmd, nullptr, G_SPAWN_SEARCH_PATH, nullptr, nullptr, nullptr, nullptr);
}
static void set_opacity(GtkWidget *window, VteTerminal *vte, double opacity, gboolean psuedo) {
vte_terminal_set_background_saturation(vte, opacity);
vte_terminal_set_background_transparent(vte, psuedo);
GdkScreen *screen = gtk_widget_get_screen(GTK_WIDGET(window));
GdkVisual *visual;
if (opacity > 0.0 && (visual = gdk_screen_get_rgba_visual(screen))) {
vte_terminal_set_opacity(vte, (guint16)(0xffff * (1 - opacity)));
} 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 the restore shown widgets
}
}
static void launch_in_directory(VteTerminal *vte) {
const char *uri = vte_terminal_get_current_directory_uri(vte);
if (!uri) {
g_printerr("no directory uri set");
return;
}
auto dir = make_unique(g_filename_from_uri(uri, nullptr, nullptr), g_free);
char term[] = "termite"; // maybe this should be argv[0]
char *cmd[] = {term, nullptr};
g_spawn_async(dir.get(), cmd, nullptr, G_SPAWN_SEARCH_PATH, nullptr, nullptr, nullptr, nullptr);
}
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, nullptr);
GArray *attributes = g_array_new(FALSE, FALSE, sizeof (vte_char_attributes));
char *content = vte_terminal_get_text(vte, nullptr, nullptr, attributes);
for (char *s_ptr = content, *saveptr; ; s_ptr = nullptr) {
const char *token = strtok_r(s_ptr, "\n", &saveptr);
if (!token) {
break;
}
GError *error = nullptr;
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, nullptr);
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(char *browser, const char *text, search_panel_info *info) {
char *end;
errno = 0;
unsigned long id = strtoul(text, &end, 10);
if (!errno && id && id <= info->url_list.size() && !*end) {
launch_browser(browser, info->url_list[id - 1].url.get());
} else {
g_printerr("url hint invalid: %s\n", text);
}
}
static void draw_rectangle(cairo_t *cr, double x, double y, double height,
double width, double radius) {
double a = x, b = x + height, c = y, d = y + width;
cairo_arc(cr, a + radius, c + radius, radius, 2*(M_PI/2), 3*(M_PI/2));
cairo_arc(cr, b - radius, c + radius, radius, 3*(M_PI/2), 4*(M_PI/2));
cairo_arc(cr, b - radius, d - radius, radius, 0*(M_PI/2), 1*(M_PI/2));
cairo_arc(cr, a + radius, d - radius, radius, 1*(M_PI/2), 2*(M_PI/2));
cairo_close_path(cr);
}
static void draw_marker(cairo_t *cr, const PangoFontDescription *desc,
const hint_info *hints, long x, long y, const char *msg,
bool active) {
cairo_text_extents_t ext;
int width, height;
cairo_text_extents(cr, msg, &ext);
PangoLayout *layout = pango_cairo_create_layout(cr);
pango_layout_set_font_description(layout, desc);
pango_layout_set_text(layout, msg, -1);
pango_layout_get_size(layout, &width, &height);
draw_rectangle(cr, static_cast<double>(x), static_cast<double>(y),
static_cast<double>(width / PANGO_SCALE) + hints->padding * 2,
static_cast<double>(height / PANGO_SCALE) + hints->padding * 2,
hints->roundness);
cairo_set_source(cr, hints->border);
cairo_set_line_width(cr, hints->border_width);
cairo_stroke_preserve(cr);
cairo_set_source(cr, active ? hints->ab : hints->bg);
cairo_fill(cr);
cairo_new_path(cr);
cairo_move_to(cr, static_cast<double>(x) + hints->padding,
static_cast<double>(y) + hints->padding);
cairo_set_source(cr, active ? hints->af : hints->fg);
pango_cairo_update_layout(cr, layout);
pango_cairo_layout_path(cr, layout);
cairo_fill(cr);
g_object_unref(layout);
}
static gboolean draw_cb(const draw_cb_info *info, cairo_t *cr) {
if (!info->panel->url_list.empty()) {
char buffer[std::numeric_limits<unsigned>::digits10 + 1];
const long cw = vte_terminal_get_char_width(info->panel->vte);
const long ch = vte_terminal_get_char_height(info->panel->vte);
const PangoFontDescription *desc = info->hints->font ?
info->hints->font : vte_terminal_get_font(info->panel->vte);
size_t len = info->panel->fulltext == nullptr ?
0 : strlen(info->panel->fulltext);
cairo_set_line_width(cr, 1);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_stroke(cr);
for (unsigned i = 0; i < info->panel->url_list.size(); i++) {
const url_data &data = info->panel->url_list[i];
const long x = data.col * cw;
const long y = data.row * ch;
bool active = false;
snprintf(buffer, sizeof(buffer), "%u", i + 1);
if(len)
active = strncmp(buffer, info->panel->fulltext, len) == 0;
draw_marker(cr, desc, info->hints, x, y, buffer, active);
}
}
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, 0l, 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(char *browser, VteTerminal *vte) {
if (browser) {
AtkText *text = ATK_TEXT(vte_terminal_accessible_new(vte));
char *selection = atk_text_get_selection(text, 0, nullptr, nullptr);
if (selection && selection[0]) {
launch_browser(browser, selection);
}
g_free(selection);
} else {
g_printerr("no browser to open url");
}
}
static std::unique_ptr<char, decltype(&g_free)>
get_text_range(VteTerminal *vte, long start_row, long start_col, long end_row, long end_col) {
return {vte_terminal_get_text_range(vte, start_row, start_col, end_row, end_col,
nullptr, nullptr, nullptr), g_free};
}
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);
auto content = get_text_range(vte, cursor_row, 0, cursor_row, cursor_col);
if (!content) {
return;
}
long length;
gunichar *codepoints = g_utf8_to_ucs4(content.get(), -1, nullptr, &length, nullptr);
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);
}
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>
void move_first(VteTerminal *vte, select_info *select, F is_match) {
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;
auto content = get_text_range(vte, cursor_row, cursor_col, cursor_row, end_col);
if (!content) {
return;
}
long length;
gunichar *codepoints = g_utf8_to_ucs4(content.get(), -1, nullptr, &length, nullptr);
if (!codepoints) {
return;
}
auto iter = std::find_if(codepoints, codepoints + length, is_match);
if (iter != codepoints + length) {
vte_terminal_set_cursor_position(vte, iter - codepoints, cursor_row);
update_selection(vte, select);
}
g_free(codepoints);
}
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);
}
static void move_to_eol(VteTerminal *vte, select_info *select) {
long cursor_row;
vte_terminal_get_cursor_position(vte, nullptr, &cursor_row);
const long end_col = vte_terminal_get_column_count(vte) - 1;
auto content = get_text_range(vte, cursor_row, 0, cursor_row, end_col);
if (!content) {
return;
}
long length;
gunichar *codepoints = g_utf8_to_ucs4(content.get(), -1, nullptr, &length, nullptr);
if (!codepoints) {
return;
}
auto iter = std::find(codepoints, codepoints + length, '\n');
set_cursor_column(vte, select, std::max(iter - codepoints - 1l, 0l));
g_free(codepoints);
}
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;
auto content = get_text_range(vte, cursor_row, cursor_col, cursor_row, end_col);
if (!content) {
return;
}
long length;
gunichar *codepoints = g_utf8_to_ucs4(content.get(), -1, nullptr, &length, nullptr);
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);
}
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)));
}
/* {{{ CALLBACKS */
void window_title_cb(VteTerminal *vte, gboolean *dynamic_title) {
const char *const title = *dynamic_title ? vte_terminal_get_window_title(vte) : nullptr;
gtk_window_set_title(GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(vte))),
title ? title : "termite");
}
static void update_font_size(VteTerminal *vte, int update) {
const PangoFontDescription *desc = vte_terminal_get_font(vte);
int size = pango_font_description_get_size(desc);
if (!pango_font_description_get_size_is_absolute(desc))
update *= PANGO_SCALE;
size += update;
if (size > 0) {
PangoFontDescription *new_desc = pango_font_description_copy(desc);
pango_font_description_set_size(new_desc, size);
vte_terminal_set_font(vte, new_desc);
pango_font_description_free(new_desc);
}
}
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;
case GDK_KEY_u:
move(vte, &info->select, 0, -(vte_terminal_get_row_count(vte) / 2));
break;
case GDK_KEY_d:
move(vte, &info->select, 0, vte_terminal_get_row_count(vte) / 2);
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_0:
set_cursor_column(vte, &info->select, 0);
break;
case GDK_KEY_asciicircum:
set_cursor_column(vte, &info->select, 0);
move_first(vte, &info->select, std::not1(std::ref(g_unichar_isspace)));
break;
case GDK_KEY_dollar:
move_to_eol(vte, &info->select);
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(info->config.browser, vte);
break;
case GDK_KEY_Return:
open_selection(info->config.browser, 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;
case GDK_KEY_plus:
update_font_size(vte, 1);
break;
case GDK_KEY_minus:
update_font_size(vte, -1);
break;
}
return TRUE;
}
if (modifiers == (GDK_CONTROL_MASK|GDK_SHIFT_MASK)) {
switch (gdk_keyval_to_lower(event->keyval)) {
case GDK_KEY_t:
launch_in_directory(vte);
return TRUE;
case GDK_KEY_space:
enter_command_mode(vte, &info->select);
return TRUE;
case GDK_KEY_x:
enter_command_mode(vte, &info->select);
find_urls(vte, &info->panel);
gtk_widget_show(info->panel.da);
overlay_show(&info->panel, overlay_mode::urlselect, false);
exit_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_r:
load_config(GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(vte))),
vte, &info->config, nullptr);
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_BackSpace:
case GDK_KEY_0:
case GDK_KEY_1:
case GDK_KEY_2:
case GDK_KEY_3:
case GDK_KEY_4:
case GDK_KEY_5:
case GDK_KEY_6:
case GDK_KEY_7:
case GDK_KEY_8:
case GDK_KEY_9:
if (info->panel.mode == overlay_mode::urlselect) {
const char *const text = gtk_entry_get_text(entry);
size_t len = strlen(text);
free(info->panel.fulltext);
info->panel.fulltext = g_strndup(text, len + 1);
info->panel.fulltext[len] = (char)event->keyval;
size_t urld = static_cast<size_t>(info->panel.url_list.size());
size_t textd = strtoul(info->panel.fulltext, nullptr, 10);
size_t url_dig = static_cast<size_t>(
log10(static_cast<double>(info->panel.url_list.size())) + 1);
size_t text_dig = static_cast<size_t>(
log10(static_cast<double>(textd)) + 1);
if (url_dig == text_dig ||
textd > static_cast<size_t>(static_cast<double>(urld)/10)) {
launch_url(info->config.browser, info->panel.fulltext, &info->panel);
ret = TRUE;
} else {
gtk_widget_queue_draw(info->panel.da);
}
}
break;
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 *const 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(info->config.browser, text, &info->panel);
break;
case overlay_mode::hidden:
break;
}
ret = TRUE;
}
}
if (ret) {
if (info->panel.mode == overlay_mode::urlselect) {
gtk_widget_hide(info->panel.da);
info->panel.url_list.clear();
free(info->panel.fulltext);
info->panel.fulltext = nullptr;
}
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, nullptr, &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, const config_info *info) {
if (info->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(info->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);
auto content = get_text_range(vte, 0, 0, end_row, end_col);
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.get(), *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);
}
return GTK_TREE_MODEL(store);
}
void search(VteTerminal *vte, const char *pattern, bool reverse) {
auto terminal_search = reverse ? vte_terminal_search_find_previous : vte_terminal_search_find_next;
GRegex *regex = vte_terminal_search_get_gregex(vte);
if (regex) g_regex_unref(regex);
regex = g_regex_new(pattern, (GRegexCompileFlags)0, (GRegexMatchFlags)0, nullptr);
vte_terminal_search_set_gregex(vte, regex);
if (!terminal_search(vte)) {
vte_terminal_select_none(vte);
terminal_search(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 = nullptr;
gtk_widget_style_get(GTK_WIDGET(vte), "inner-border", &border, nullptr);
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),