MacViews: Add WidgetEventGenerator to abstract platform-specific event generation for tests.

ui/base/test/event_generator_base.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ui/base/test/event_generator_base.h"
+
+namespace ui {
+namespace test {
+
+namespace {
+
+const int kAllButtonMask = EF_LEFT_MOUSE_BUTTON | EF_RIGHT_MOUSE_BUTTON;
+
+}  // namespace
+
+EventGeneratorBase::EventGeneratorBase(const gfx::Point& initial_location)
+    : current_location_(initial_location),
+      flags_(0),
+      grab_(false) {
+}
+
+EventGeneratorBase::~EventGeneratorBase() {
+}
+
+void EventGeneratorBase::PressLeftButton() {
+  PressButton(EF_LEFT_MOUSE_BUTTON);
+}
+
+void EventGeneratorBase::ReleaseLeftButton() {
+  ReleaseButton(EF_LEFT_MOUSE_BUTTON);
+}
+
+void EventGeneratorBase::ClickLeftButton() {
+  PressLeftButton();
+  ReleaseLeftButton();
+}
+
+void EventGeneratorBase::DoubleClickLeftButton() {
+  flags_ |= EF_IS_DOUBLE_CLICK;
+  PressLeftButton();
+  flags_ ^= EF_IS_DOUBLE_CLICK;
+  ReleaseLeftButton();
+}
+
+void EventGeneratorBase::PressRightButton() {
+  PressButton(EF_RIGHT_MOUSE_BUTTON);
+}
+
+void EventGeneratorBase::ReleaseRightButton() {
+  ReleaseButton(EF_RIGHT_MOUSE_BUTTON);
+}
+
+void EventGeneratorBase::DragMouseTo(const gfx::Point& point) {
+  PressLeftButton();
+  MoveMouseTo(point);
+  ReleaseLeftButton();
+}
+
+void EventGeneratorBase::PressButton(int flag) {
+  if (!(flags_ & flag)) {
+    flags_ |= flag;
+    grab_ = flags_ & kAllButtonMask;
+    gfx::Point location = GetLocationInCurrentRoot();
+    DispatchMouseEvent(ET_MOUSE_PRESSED, location, flags_, flag);
+  }
+}
+
+void EventGeneratorBase::ReleaseButton(int flag) {
+  if (flags_ & flag) {
+    gfx::Point location = GetLocationInCurrentRoot();
+    DispatchMouseEvent(ET_MOUSE_RELEASED, location, flags_, flag);
+    flags_ ^= flag;
+  }
+  grab_ = flags_ & kAllButtonMask;
+}
+
+}  // namespace test
+}  // namespace ui