1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
/*
* This source file is part of libRocket, the HTML/CSS Interface Middleware
*
* For the latest information, see http://www.librocket.com
*
* Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
#ifndef ROCKETCOREEVENTDISPATCHER_H
#define ROCKETCOREEVENTDISPATCHER_H
#include "../../Include/Rocket/Core/String.h"
#include "../../Include/Rocket/Core/Event.h"
#include <map>
namespace Rocket {
namespace Core {
class Element;
class EventListener;
/**
The Event Dispatcher manages a list of event listeners (based on URL) and triggers the events via EventHandlers
whenever requested.
@author Lloyd Weehuizen
*/
class EventDispatcher
{
public:
/// Constructor
/// @param element Element this dispatcher acts on
EventDispatcher(Element* element);
// Destructor
~EventDispatcher();
/// Attaches a new listener to the specified event name
/// @param[in] type Type of the event to attach to
/// @param[in] event_listener The event listener to be notified when the event fires
/// @param[in] in_capture_phase Should the listener be notified in the capture phase
void AttachEvent(const String& type, EventListener* event_listener, bool in_capture_phase);
/// Detaches a listener from the specified event name
/// @param[in] type Type of the event to attach to
/// @para[in]m event_listener The event listener to be notified when the event fires
/// @param[in] in_capture_phase Should the listener be notified in the capture phase
void DetachEvent(const String& type, EventListener* listener, bool in_capture_phase);
/// Detaches all events from this dispatcher and all child dispatchers.
void DetachAllEvents();
/// Dispatches the specified event with element as the target
/// @param[in] target_element The target element of the event
/// @param[in] name The name of the event
/// @param[in] parameters The event parameters
/// @param[in] interruptible Can the event propagation be stopped
/// @return True if the event was not consumed (ie, was prevented from propagating by an element), false if it was.
bool DispatchEvent(Element* element, const String& name, const Dictionary& parameters, bool interruptible);
private:
Element* element;
struct Listener
{
Listener(EventListener* _listener, bool _in_capture_phase) : listener(_listener), in_capture_phase(_in_capture_phase) {}
EventListener* listener;
bool in_capture_phase;
};
typedef std::vector< Listener > Listeners;
typedef std::map< String, Listeners > Events;
Events events;
void TriggerEvents(Event* event);
};
}
}
#endif
|
