1 files changed, 61 insertions, 0 deletions
diff --git a/src/ui/widget/custom-tooltip.cpp b/src/ui/widget/custom-tooltip.cpp
new file mode 100644
index 0000000..c77082e
--- /dev/null
+++ b/src/ui/widget/custom-tooltip.cpp
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include "custom-tooltip.h"
+#include "gtkmm/box.h"
+#include "gtkmm/label.h"
+#include "gtkmm/image.h"
+#include <ctime>
+#include <chrono>
+#include <gdk/gdk.h>
+
+static gint timeoutid = -1;
+
+static 
+gboolean
+delaytooltip (gpointer data)
+{
+    GdkDisplay *display = reinterpret_cast<GdkDisplay *>(data); 
+    gtk_tooltip_trigger_tooltip_query(display);
+    return true;
+}
+
+void sp_clear_custom_tooltip()
+{
+    if (timeoutid != -1) {
+        g_source_remove(timeoutid);
+        timeoutid = -1;
+    }
+}
+
+bool
+sp_query_custom_tooltip(int x, int y, bool keyboard_tooltip, const Glib::RefPtr<Gtk::Tooltip>& tooltipw, gint id, Glib::ustring tooltip, Glib::ustring icon, Gtk::IconSize iconsize, int delaytime)
+{
+    sp_clear_custom_tooltip();
+
+    static gint last = -1;
+    static auto start = std::chrono::steady_clock::now();
+    auto end = std::chrono::steady_clock::now();
+    if (last != id) {
+        start = std::chrono::steady_clock::now();
+        last = id;
+    }
+    Gtk::Box *box = Gtk::make_managed<Gtk::Box>();
+    Gtk::Label *label = Gtk::make_managed<Gtk::Label>();
+    label->set_line_wrap(true);
+    label->set_markup(tooltip);
+    label->set_max_width_chars(40);
+    if (icon != "") {
+        box->pack_start(*Gtk::make_managed<Gtk::Image>(icon, iconsize), true, true, 2);
+    }
+    box->pack_start(*label, true, true, 2);
+    tooltipw->set_custom(*box);
+    box->get_style_context()->add_class("symbolic");
+    box->show_all_children();
+    auto elapsed = std::chrono::duration_cast<std::chrono::milliseconds>(end - start);
+    if (elapsed.count() / delaytime < 0.5) {
+        GdkDisplay *display = gdk_display_get_default();
+        if (display) {
+            timeoutid = g_timeout_add(501-elapsed.count(), delaytooltip, display);
+        }
+    }
+    return elapsed.count() / delaytime > 0.5;
+}