1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #import "ui/events/cocoa/cocoa_event_utils.h" 6 7 #include "ui/events/event_constants.h" 8 #include "ui/events/event_utils.h" 9 10 namespace { 11 12 bool IsLeftButtonEvent(NSEvent* event) { 13 NSEventType type = [event type]; 14 return type == NSLeftMouseDown || type == NSLeftMouseDragged || 15 type == NSLeftMouseUp; 16 } 17 18 bool IsRightButtonEvent(NSEvent* event) { 19 NSEventType type = [event type]; 20 return type == NSRightMouseDown || type == NSRightMouseDragged || 21 type == NSRightMouseUp; 22 } 23 24 bool IsMiddleButtonEvent(NSEvent* event) { 25 if ([event buttonNumber] != 2) 26 return false; 27 28 NSEventType type = [event type]; 29 return type == NSOtherMouseDown || type == NSOtherMouseDragged || 30 type == NSOtherMouseUp; 31 } 32 33 } // namespace 34 35 namespace ui { 36 37 int EventFlagsFromModifiers(NSUInteger modifiers) { 38 int flags = 0; 39 flags |= (modifiers & NSAlphaShiftKeyMask) ? ui::EF_CAPS_LOCK_DOWN : 0; 40 flags |= (modifiers & NSShiftKeyMask) ? ui::EF_SHIFT_DOWN : 0; 41 flags |= (modifiers & NSControlKeyMask) ? ui::EF_CONTROL_DOWN : 0; 42 flags |= (modifiers & NSAlternateKeyMask) ? ui::EF_ALT_DOWN : 0; 43 flags |= (modifiers & NSCommandKeyMask) ? ui::EF_COMMAND_DOWN : 0; 44 return flags; 45 } 46 47 int EventFlagsFromNSEventWithModifiers(NSEvent* event, NSUInteger modifiers) { 48 int flags = EventFlagsFromModifiers(modifiers); 49 flags |= IsLeftButtonEvent(event) ? ui::EF_LEFT_MOUSE_BUTTON : 0; 50 flags |= IsRightButtonEvent(event) ? ui::EF_RIGHT_MOUSE_BUTTON : 0; 51 flags |= IsMiddleButtonEvent(event) ? ui::EF_MIDDLE_MOUSE_BUTTON : 0; 52 return flags; 53 } 54 55 } // namespace ui 56