зеркало из https://github.com/mozilla/gecko-dev.git
52 строки
1.2 KiB
C++
52 строки
1.2 KiB
C++
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WidgetUtilsGtk.h"
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namespace mozilla {
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namespace widget {
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int32_t WidgetUtilsGTK::IsTouchDeviceSupportPresent()
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{
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#if GTK_CHECK_VERSION(3,4,0)
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int32_t result = 0;
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GdkDisplay* display = gdk_display_get_default();
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if (!display) {
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return 0;
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}
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GdkDeviceManager* manager = gdk_display_get_device_manager(display);
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if (!manager) {
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return 0;
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}
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GList* devices =
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gdk_device_manager_list_devices(manager, GDK_DEVICE_TYPE_SLAVE);
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GList* list = devices;
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while (devices) {
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GdkDevice* device = static_cast<GdkDevice*>(devices->data);
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if (gdk_device_get_source(device) == GDK_SOURCE_TOUCHSCREEN) {
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result = 1;
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break;
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}
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devices = devices->next;
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}
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if (list) {
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g_list_free(list);
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}
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return result;
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#else
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return 0;
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#endif
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}
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} // namespace widget
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} // namespace mozilla
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