1 files changed, 60 insertions, 0 deletions
diff --git a/Userland/Libraries/LibWeb/DOM/Timer.cpp b/Userland/Libraries/LibWeb/DOM/Timer.cpp
new file mode 100644
index 0000000000..04e3c778f5
--- /dev/null
+++ b/Userland/Libraries/LibWeb/DOM/Timer.cpp
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <LibCore/Timer.h>
+#include <LibJS/Runtime/Function.h>
+#include <LibWeb/DOM/Timer.h>
+#include <LibWeb/DOM/Window.h>
+
+namespace Web::DOM {
+
+NonnullRefPtr<Timer> Timer::create_interval(Window& window, int milliseconds, JS::Function& callback)
+{
+    return adopt(*new Timer(window, Type::Interval, milliseconds, callback));
+}
+
+NonnullRefPtr<Timer> Timer::create_timeout(Window& window, int milliseconds, JS::Function& callback)
+{
+    return adopt(*new Timer(window, Type::Timeout, milliseconds, callback));
+}
+
+Timer::Timer(Window& window, Type type, int milliseconds, JS::Function& callback)
+    : m_window(window)
+    , m_type(type)
+    , m_callback(JS::make_handle(&callback))
+{
+    m_id = window.allocate_timer_id({});
+    m_timer = Core::Timer::construct(milliseconds, [this] { m_window.timer_did_fire({}, *this); });
+    if (m_type == Type::Timeout)
+        m_timer->set_single_shot(true);
+}
+
+Timer::~Timer()
+{
+    m_window.deallocate_timer_id({}, m_id);
+}
+
+}