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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
// 20 may 2015
#include "uipriv_windows.hpp"
struct handler {
BOOL (*commandHandler)(uiControl *, HWND, WORD, LRESULT *);
BOOL (*notifyHandler)(uiControl *, HWND, NMHDR *, LRESULT *);
BOOL (*hscrollHandler)(uiControl *, HWND, WORD, LRESULT *);
uiControl *c;
// just to ensure handlers[new HWND] initializes properly
// TODO gcc can't handle a struct keyword here? or is that a MSVC extension?
handler()
{
this->commandHandler = NULL;
this->notifyHandler = NULL;
this->hscrollHandler = NULL;
this->c = NULL;
}
};
static std::map<HWND, struct handler> handlers;
void uiWindowsRegisterWM_COMMANDHandler(HWND hwnd, BOOL (*handler)(uiControl *, HWND, WORD, LRESULT *), uiControl *c)
{
if (handlers[hwnd].commandHandler != NULL)
implbug("already registered a WM_COMMAND handler to window handle %p", hwnd);
handlers[hwnd].commandHandler = handler;
handlers[hwnd].c = c;
}
void uiWindowsRegisterWM_NOTIFYHandler(HWND hwnd, BOOL (*handler)(uiControl *, HWND, NMHDR *, LRESULT *), uiControl *c)
{
if (handlers[hwnd].notifyHandler != NULL)
implbug("already registered a WM_NOTIFY handler to window handle %p", hwnd);
handlers[hwnd].notifyHandler = handler;
handlers[hwnd].c = c;
}
void uiWindowsRegisterWM_HSCROLLHandler(HWND hwnd, BOOL (*handler)(uiControl *, HWND, WORD, LRESULT *), uiControl *c)
{
if (handlers[hwnd].hscrollHandler != NULL)
implbug("already registered a WM_HSCROLL handler to window handle %p", hwnd);
handlers[hwnd].hscrollHandler = handler;
handlers[hwnd].c = c;
}
void uiWindowsUnregisterWM_COMMANDHandler(HWND hwnd)
{
if (handlers[hwnd].commandHandler == NULL)
implbug("window handle %p not registered to receive WM_COMMAND events", hwnd);
handlers[hwnd].commandHandler = NULL;
}
void uiWindowsUnregisterWM_NOTIFYHandler(HWND hwnd)
{
if (handlers[hwnd].notifyHandler == NULL)
implbug("window handle %p not registered to receive WM_NOTIFY events", hwnd);
handlers[hwnd].notifyHandler = NULL;
}
void uiWindowsUnregisterWM_HSCROLLHandler(HWND hwnd)
{
if (handlers[hwnd].hscrollHandler == NULL)
implbug("window handle %p not registered to receive WM_HSCROLL events", hwnd);
handlers[hwnd].hscrollHandler = NULL;
}
template<typename T>
static BOOL shouldRun(HWND hwnd, T method)
{
// not from a window
if (hwnd == NULL)
return FALSE;
// don't bounce back if to the utility window, in which case act as if the message was ignored
if (IsChild(utilWindow, hwnd) != 0)
return FALSE;
// registered?
return method != NULL;
}
BOOL runWM_COMMAND(WPARAM wParam, LPARAM lParam, LRESULT *lResult)
{
HWND hwnd;
WORD arg3;
BOOL (*handler)(uiControl *, HWND, WORD, LRESULT *);
uiControl *c;
hwnd = (HWND) lParam;
arg3 = HIWORD(wParam);
handler = handlers[hwnd].commandHandler;
c = handlers[hwnd].c;
if (shouldRun(hwnd, handler))
return (*handler)(c, hwnd, arg3, lResult);
return FALSE;
}
BOOL runWM_NOTIFY(WPARAM wParam, LPARAM lParam, LRESULT *lResult)
{
HWND hwnd;
NMHDR *arg3;
BOOL (*handler)(uiControl *, HWND, NMHDR *, LRESULT *);
uiControl *c;
arg3 = (NMHDR *) lParam;
hwnd = arg3->hwndFrom;
handler = handlers[hwnd].notifyHandler;
c = handlers[hwnd].c;
if (shouldRun(hwnd, handler))
return (*handler)(c, hwnd, arg3, lResult);
return FALSE;
}
BOOL runWM_HSCROLL(WPARAM wParam, LPARAM lParam, LRESULT *lResult)
{
HWND hwnd;
WORD arg3;
BOOL (*handler)(uiControl *, HWND, WORD, LRESULT *);
uiControl *c;
hwnd = (HWND) lParam;
arg3 = LOWORD(wParam);
handler = handlers[hwnd].hscrollHandler;
c = handlers[hwnd].c;
if (shouldRun(hwnd, handler))
return (*handler)(c, hwnd, arg3, lResult);
return FALSE;
}
static std::map<HWND, bool> wininichanges;
void uiWindowsRegisterReceiveWM_WININICHANGE(HWND hwnd)
{
if (wininichanges[hwnd])
implbug("window handle %p already subscribed to receive WM_WINICHANGEs", hwnd);
wininichanges[hwnd] = true;
}
void uiWindowsUnregisterReceiveWM_WININICHANGE(HWND hwnd)
{
if (!wininichanges[hwnd])
implbug("window handle %p not registered to receive WM_WININICHANGEs", hwnd);
wininichanges[hwnd] = false;
}
void issueWM_WININICHANGE(WPARAM wParam, LPARAM lParam)
{
struct wininichange *ch;
for (const auto &iter : wininichanges)
SendMessageW(iter.first, WM_WININICHANGE, wParam, lParam);
}
|