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// Copyright (c) 2011 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.
#import "chrome/browser/ui/cocoa/event_utils.h"
#include "chrome/browser/event_disposition.h"
#include "content/browser/disposition_utils.h"
#include "ui/base/events.h"
namespace {
bool isLeftButtonEvent(NSEvent* event) {
NSEventType type = [event type];
return type == NSLeftMouseDown ||
type == NSLeftMouseDragged ||
type == NSLeftMouseUp;
}
bool isRightButtonEvent(NSEvent* event) {
NSEventType type = [event type];
return type == NSRightMouseDown ||
type == NSRightMouseDragged ||
type == NSRightMouseUp;
}
bool isMiddleButtonEvent(NSEvent* event) {
if ([event buttonNumber] != 2)
return false;
NSEventType type = [event type];
return type == NSOtherMouseDown ||
type == NSOtherMouseDragged ||
type == NSOtherMouseUp;
}
} // namespace
namespace event_utils {
// Retrieves a bitsum of ui::EventFlags from NSEvent.
int EventFlagsFromNSEvent(NSEvent* event) {
NSUInteger modifiers = [event modifierFlags];
return EventFlagsFromNSEventWithModifiers(event, modifiers);
}
int EventFlagsFromNSEventWithModifiers(NSEvent* event, NSUInteger modifiers) {
int flags = 0;
flags |= (modifiers & NSAlphaShiftKeyMask) ? ui::EF_CAPS_LOCK_DOWN : 0;
flags |= (modifiers & NSShiftKeyMask) ? ui::EF_SHIFT_DOWN : 0;
flags |= (modifiers & NSControlKeyMask) ? ui::EF_CONTROL_DOWN : 0;
flags |= (modifiers & NSAlternateKeyMask) ? ui::EF_ALT_DOWN : 0;
flags |= (modifiers & NSCommandKeyMask) ? ui::EF_COMMAND_DOWN : 0;
flags |= isLeftButtonEvent(event) ? ui::EF_LEFT_MOUSE_BUTTON : 0;
flags |= isRightButtonEvent(event) ? ui::EF_RIGHT_MOUSE_BUTTON : 0;
flags |= isMiddleButtonEvent(event) ? ui::EF_MIDDLE_MOUSE_BUTTON : 0;
return flags;
}
WindowOpenDisposition WindowOpenDispositionFromNSEvent(NSEvent* event) {
NSUInteger modifiers = [event modifierFlags];
return WindowOpenDispositionFromNSEventWithFlags(event, modifiers);
}
WindowOpenDisposition WindowOpenDispositionFromNSEventWithFlags(
NSEvent* event, NSUInteger modifiers) {
int event_flags = EventFlagsFromNSEventWithModifiers(event, modifiers);
return browser::DispositionFromEventFlags(event_flags);
}
} // namespace event_utils
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