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

ui/base/test/event_generator_base.h

+// 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.
+
+#ifndef UI_BASE_TEST_EVENT_GENERATOR_BASE_H_

[Ben Goodger (Google), 2014/07/11 18:26:50]

I think this should go into ui/events/test rather than ui/base/test.

[tapted, 2014/07/14 11:37:47]

Done.

+#define UI_BASE_TEST_EVENT_GENERATOR_BASE_H_
+
+#include "base/macros.h"
+#include "ui/events/event_constants.h"
+#include "ui/gfx/geometry/point.h"
+
+namespace ui {
+namespace test {
+
+// Common base class for generating and dispatching platform-specific events.
+// Unlike |ui_controls|, events are dispatched directly to the EventProcessor.
+// MessageLoops are not used, and this interface is not suited to tests that
+// require a RunLoop.
+class EventGeneratorBase {
+ public:
+  explicit EventGeneratorBase(const gfx::Point& initial_location);
+  virtual ~EventGeneratorBase();
+
+  // Explicitly sets the location used by mouse/touch events. This is set by the
+  // various methods that take a location but can be manipulated directly,
+  // typically for touch.
+  void set_current_location(const gfx::Point& location) {
+    current_location_ = location;
+  }
+  const gfx::Point& current_location() const { return current_location_; }
+
+  // Resets the event flags bitmask.
+  void set_flags(int flags) { flags_ = flags; }
+  int flags() const { return flags_; }
+
+  bool grab() const { return grab_; }
+
+  // Generates a left button press event.
+  void PressLeftButton();
+
+  // Generates a left button release event.
+  void ReleaseLeftButton();
+
+  // Generates events to click (press, release) left button.
+  void ClickLeftButton();
+
+  // Generates a double click event using the left button.
+  void DoubleClickLeftButton();
+
+  // Generates a right button press event.
+  void PressRightButton();
+
+  // Generates a right button release event.
+  void ReleaseRightButton();
+
+  // Generates events to move mouse to be the given |point| in screen
+  // coordinates.
+  void MoveMouseTo(const gfx::Point& point_in_screen, int count) {
+    DoMoveMouseTo(point_in_screen, count);
+  }
+  void MoveMouseTo(const gfx::Point& point_in_screen) {
+    MoveMouseTo(point_in_screen, 1);
+  }
+  void MoveMouseTo(int x, int y) {
+    MoveMouseTo(gfx::Point(x, y));
+  }
+
+  // Generates events to drag mouse to given |point|.
+  void DragMouseTo(const gfx::Point& point);
+
+  void DragMouseTo(int x, int y) {
+    DragMouseTo(gfx::Point(x, y));
+  }
+
+  void DragMouseBy(int dx, int dy) {
+    DragMouseTo(current_location_ + gfx::Vector2d(dx, dy));
+  }
+
+ protected:
+  virtual gfx::Point GetLocationInCurrentRoot() const = 0;
+  virtual void DoMoveMouseTo(const gfx::Point& point_in_screen, int count) = 0;
+  virtual void DispatchMouseEvent(EventType type,
+                                  const gfx::Point& location_in_root,
+                                  int flags,
+                                  int changed_button_flags) = 0;
+
+  void PressButton(int flag);
+  void ReleaseButton(int flag);
+
+ private:
+  gfx::Point current_location_;
+
+  // Current ui::EventFlag state.
+  int flags_;
+
+  // Whether the event dispatcher should receive mousemove updates.
+  bool grab_;
+
+  DISALLOW_COPY_AND_ASSIGN(EventGeneratorBase);
+};
+
+}  // namespace test
+}  // namespace ui
+
+#endif  // UI_BASE_TEST_EVENT_GENERATOR_BASE_H_