shellbar/sb_toolbar.c at main · rendergraf/shellbar · GitHub

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/*
 * ShellBar v1.9.0 — A command-bar terminal emulator built on libghostty-vt
 * Copyright (c) 2026 Xavier Araque <xavieraraque@gmail.com>
 * MIT License
 */
#include "sb_toolbar.h"
#include <string.h>

struct _SbToolbar {
  GtkWidget *widget;
  GtkBox *box;
  SbTerminal *active_terminal;
  GtkWidget **buttons;
  int button_count;
  SbToolbarCommandCb command_cb;
  void *command_cb_data;
};

SbToolbar *sb_toolbar_new(GtkOrientation orientation) {
  SbToolbar *self = g_malloc0(sizeof(SbToolbar));

  self->widget = gtk_box_new(orientation, 4);
  self->box = GTK_BOX(self->widget);

  if (orientation == GTK_ORIENTATION_HORIZONTAL) {
    gtk_widget_set_margin_start(self->widget, 6);
    gtk_widget_set_margin_end(self->widget, 6);
    gtk_widget_set_margin_top(self->widget, 4);
    gtk_widget_set_margin_bottom(self->widget, 4);
  } else {
    gtk_widget_set_margin_top(self->widget, 6);
    gtk_widget_set_margin_bottom(self->widget, 6);
    gtk_widget_set_margin_start(self->widget, 4);
    gtk_widget_set_margin_end(self->widget, 4);
  }

  gtk_widget_add_css_class(self->widget, "sb-toolbar");

  return self;
}

static gboolean sb_toolbar_flash_timeout(gpointer user_data) {
  GtkWidget **target = user_data;
  if (*target) {
    g_object_remove_weak_pointer(G_OBJECT(*target), (gpointer *)target);
    gtk_widget_remove_css_class(*target, "sb-flash");
  }
  g_free(target);
  return G_SOURCE_REMOVE;
}

static void sb_toolbar_flash_button(GtkWidget *button) {
  gtk_widget_add_css_class(button, "sb-flash");
  GtkWidget **target = g_new0(GtkWidget *, 1);
  *target = button;
  g_object_add_weak_pointer(G_OBJECT(button), (gpointer *)target);
  g_timeout_add(200, sb_toolbar_flash_timeout, target);
}

static void on_button_clicked(GtkButton *button, gpointer user_data) {
  SbToolbar *self = user_data;
  const char *cmd = g_object_get_data(G_OBJECT(button), "sb-command");
  int index = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "sb-index"));
  if (cmd && self->active_terminal) {
    sb_toolbar_flash_button(GTK_WIDGET(button));
    sb_toolbar_set_button_highlight(self, index, TRUE);
    if (self->command_cb)
      self->command_cb(index, self->command_cb_data);
    sb_terminal_write_str(self->active_terminal, cmd);
    sb_terminal_write(self->active_terminal, "\n", 1);
  }
}

void sb_toolbar_set_button_highlight(SbToolbar *self, int index,
                                     gboolean active) {
  if (index < 0 || index >= self->button_count) return;
  GtkWidget *btn = self->buttons[index];
  if (!btn || !GTK_IS_WIDGET(btn)) return;
  if (active)
    gtk_widget_add_css_class(btn, "sb-active");
  else
    gtk_widget_remove_css_class(btn, "sb-active");
}

void sb_toolbar_set_command_callback(SbToolbar *self, SbToolbarCommandCb cb,
                                     void *userdata) {
  self->command_cb = cb;
  self->command_cb_data = userdata;
}

static GtkWidget *sb_toolbar_add_button(SbToolbar *self, const char *name,
                                        const char *command, const char *icon_name,
                                        int index) {
  GtkWidget *button;
  if (icon_name && icon_name[0] != '\0')
    button = gtk_button_new_from_icon_name(icon_name);
  else
    button = gtk_button_new();
  gtk_button_set_label(GTK_BUTTON(button), name);
  gtk_widget_set_tooltip_text(button, command);
  g_object_set_data_full(G_OBJECT(button), "sb-command",
    g_strdup(command), g_free);
  g_object_set_data(G_OBJECT(button), "sb-index",
    GINT_TO_POINTER(index));
  g_signal_connect(button, "clicked", G_CALLBACK(on_button_clicked), self);
  gtk_box_append(self->box, button);
  return button;
}

void sb_toolbar_set_buttons(SbToolbar *self, const SbToolbarButtonDef *buttons,
                            int count) {
  GtkWidget *child;
  while ((child = gtk_widget_get_first_child(self->widget)) != NULL)
    gtk_box_remove(self->box, child);

  g_free(self->buttons);
  self->buttons = g_malloc0(count * sizeof(GtkWidget *));
  self->button_count = count;

  for (int i = 0; i < count; i++)
    self->buttons[i] = sb_toolbar_add_button(self, buttons[i].name,
                           buttons[i].command, buttons[i].icon_name, i);

  GtkWidget *add_btn = gtk_button_new_with_label("+");
  gtk_widget_set_tooltip_text(add_btn, "Add command");
  gtk_box_append(self->box, add_btn);
}

void sb_toolbar_set_active_terminal(SbToolbar *self, SbTerminal *terminal) {
  self->active_terminal = terminal;
}

GtkWidget *sb_toolbar_get_widget(SbToolbar *self) {
  return self->widget;
}

void sb_toolbar_free(SbToolbar *self) {
  if (!self) return;
  g_free(self->buttons);
  g_free(self);
}