add scrollback search again

termite.c

@@ -1,3 +1,5 @@
+#include <stdbool.h>
+
 #include <gtk/gtk.h>
 #include <vte/vte.h>
 
@@ -9,7 +11,73 @@
 
 #include "config.h"
 
-static gboolean key_press_cb(GtkWidget *vte, GdkEventKey *event) {
+#ifndef __GNUC__
+# define __attribute__(x)
+#endif
+
+enum search_direction {
+    search_forward,
+    search_backward
+};
+
+typedef struct search_dialog_info {
+    GtkWidget *vte;
+    GtkWidget *entry;
+    enum search_direction direction;
+    bool open;
+} search_dialog_info;
+
+static void search(VteTerminal *vte, const char *pattern, enum search_direction direction) {
+    GRegex *regex = vte_terminal_search_get_gregex(vte);
+    if (regex) g_regex_unref(regex);
+    regex = g_regex_new(pattern, 0, 0, NULL);
+    vte_terminal_search_set_gregex(vte, regex);
+
+    if (direction == search_forward) {
+        vte_terminal_search_find_next(vte);
+    } else {
+        vte_terminal_search_find_previous(vte);
+    }
+}
+
+static void search_response_cb(GtkDialog *dialog, gint response_id, search_dialog_info *info) {
+    if (response_id == GTK_RESPONSE_ACCEPT) {
+        search(VTE_TERMINAL(info->vte), gtk_entry_get_text(GTK_ENTRY(info->entry)), info->direction);
+    }
+
+    gtk_widget_destroy(GTK_WIDGET(dialog));
+    info->open = false;
+}
+
+static void open_search_dialog(GtkWidget *vte, enum search_direction direction, search_dialog_info *info) {
+    info->direction = direction;
+
+    if (info->open) {
+        return;
+    }
+
+    info->open = true;
+    info->entry = gtk_entry_new();
+
+    GtkWidget *dialog, *content_area;
+    dialog = gtk_dialog_new_with_buttons("Search",
+                                         GTK_WINDOW(gtk_widget_get_toplevel(vte)),
+                                         GTK_DIALOG_DESTROY_WITH_PARENT,
+                                         GTK_STOCK_OK,
+                                         GTK_RESPONSE_ACCEPT,
+                                         NULL);
+    content_area = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
+    g_signal_connect(dialog, "response", G_CALLBACK(search_response_cb), info);
+
+    gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT);
+    gtk_entry_set_activates_default(GTK_ENTRY(info->entry), TRUE);
+
+    gtk_container_add(GTK_CONTAINER(content_area), info->entry);
+    gtk_widget_show_all(dialog);
+    gtk_widget_grab_focus(GTK_WIDGET(info->entry));
+}
+
+static gboolean key_press_cb(GtkWidget *vte, GdkEventKey *event, search_dialog_info *info) {
     const GdkModifierType modifiers = event->state & gtk_accelerator_get_default_mod_mask();
     if (modifiers == (GDK_CONTROL_MASK|GDK_SHIFT_MASK)) {
         switch (gdk_keyval_to_lower(event->keyval)) {
@@ -19,6 +87,18 @@ static gboolean key_press_cb(GtkWidget *vte, GdkEventKey *event) {
             case GDK_v:
                 vte_terminal_paste_clipboard(VTE_TERMINAL(vte));
                 return TRUE;
+            case GDK_p:
+                vte_terminal_search_find_previous(VTE_TERMINAL(vte));
+                return TRUE;
+            case GDK_n:
+                vte_terminal_search_find_next(VTE_TERMINAL(vte));
+                return TRUE;
+            case GDK_f:
+                open_search_dialog(vte, search_forward, info);
+                return TRUE;
+            case GDK_b:
+                open_search_dialog(vte, search_backward, info);
+                return TRUE;
         }
     }
     return FALSE;
@@ -153,8 +233,10 @@ int main(int argc, char **argv) {
 
     vte_terminal_set_colors(VTE_TERMINAL(vte), &foreground, &background, palette, 16);
 
+    search_dialog_info info = { .vte = vte, .open = false };
+
     g_signal_connect(G_OBJECT(window), "destroy", G_CALLBACK(gtk_main_quit), NULL);
-    g_signal_connect(vte, "key-press-event", G_CALLBACK(key_press_cb), NULL);
+    g_signal_connect(vte, "key-press-event", G_CALLBACK(key_press_cb), &info);
 
 #ifdef CLICKABLE_URL
     int tmp = vte_terminal_match_add_gregex(VTE_TERMINAL(vte),