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
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
This file provides the implementation for the XUL "controllers"
object.
*/
#include "nsString.h"
#include "nsIControllers.h"
#include "nsXULControllers.h"
#include "nsIController.h"
#include "mozilla/RefPtr.h"
//----------------------------------------------------------------------
nsXULControllerData::nsXULControllerData(uint32_t inControllerID,
nsIController* inController)
: mControllerID(inControllerID), mController(inController) {}
nsresult nsXULControllerData::GetController(nsIController** outController) {
NS_IF_ADDREF(*outController = mController);
return NS_OK;
}
nsXULControllers::nsXULControllers() : mCurControllerID(0) {}
nsXULControllers::~nsXULControllers(void) { DeleteControllers(); }
void nsXULControllers::DeleteControllers() {
uint32_t count = mControllers.Length();
for (uint32_t i = 0; i < count; i++) {
nsXULControllerData* controllerData = mControllers.ElementAt(i);
delete controllerData; // releases the nsIController
}
mControllers.Clear();
}
NS_IMPL_CYCLE_COLLECTION_CLASS(nsXULControllers)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsXULControllers)
tmp->DeleteControllers();
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsXULControllers)
{
uint32_t i, count = tmp->mControllers.Length();
for (i = 0; i < count; ++i) {
nsXULControllerData* controllerData = tmp->mControllers[i];
if (controllerData) {
cb.NoteXPCOMChild(controllerData->mController);
}
}
}
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsXULControllers)
NS_INTERFACE_MAP_ENTRY(nsIControllers)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIControllers)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(nsXULControllers)
NS_IMPL_CYCLE_COLLECTING_RELEASE(nsXULControllers)
NS_IMETHODIMP
nsXULControllers::GetControllerForCommand(const char* aCommand,
nsIController** _retval) {
NS_ENSURE_ARG_POINTER(_retval);
*_retval = nullptr;
uint32_t count = mControllers.Length();
for (uint32_t i = 0; i < count; i++) {
nsXULControllerData* controllerData = mControllers.ElementAt(i);
if (controllerData) {
nsCOMPtr<nsIController> controller;
controllerData->GetController(getter_AddRefs(controller));
if (controller) {
bool supportsCommand;
controller->SupportsCommand(aCommand, &supportsCommand);
if (supportsCommand) {
controller.forget(_retval);
return NS_OK;
}
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsXULControllers::InsertControllerAt(uint32_t aIndex,
nsIController* controller) {
nsXULControllerData* controllerData =
new nsXULControllerData(++mCurControllerID, controller);
#ifdef DEBUG
nsXULControllerData** inserted =
#endif
mControllers.InsertElementAt(aIndex, controllerData);
NS_ASSERTION(inserted != nullptr, "Insertion of controller failed");
return NS_OK;
}
NS_IMETHODIMP
nsXULControllers::RemoveControllerAt(uint32_t aIndex, nsIController** _retval) {
NS_ENSURE_ARG_POINTER(_retval);
*_retval = nullptr;
nsXULControllerData* controllerData = mControllers.SafeElementAt(aIndex);
if (!controllerData) return NS_ERROR_FAILURE;
mControllers.RemoveElementAt(aIndex);
controllerData->GetController(_retval);
delete controllerData;
return NS_OK;
}
NS_IMETHODIMP
nsXULControllers::GetControllerAt(uint32_t aIndex, nsIController** _retval) {
NS_ENSURE_ARG_POINTER(_retval);
*_retval = nullptr;
nsXULControllerData* controllerData = mControllers.SafeElementAt(aIndex);
if (!controllerData) return NS_ERROR_FAILURE;
return controllerData->GetController(_retval); // does the addref
}
NS_IMETHODIMP
nsXULControllers::AppendController(nsIController* controller) {
// This assigns controller IDs starting at 1 so we can use 0 to test if an ID
// was obtained
nsXULControllerData* controllerData =
new nsXULControllerData(++mCurControllerID, controller);
#ifdef DEBUG
nsXULControllerData** appended =
#endif
mControllers.AppendElement(controllerData);
NS_ASSERTION(appended != nullptr, "Appending controller failed");
return NS_OK;
}
NS_IMETHODIMP
nsXULControllers::RemoveController(nsIController* controller) {
// first get the identity pointer
nsCOMPtr<nsISupports> controllerSup(do_QueryInterface(controller));
// then find it
uint32_t count = mControllers.Length();
for (uint32_t i = 0; i < count; i++) {
nsXULControllerData* controllerData = mControllers.ElementAt(i);
if (controllerData) {
nsCOMPtr<nsIController> thisController;
controllerData->GetController(getter_AddRefs(thisController));
nsCOMPtr<nsISupports> thisControllerSup(
do_QueryInterface(thisController)); // get identity
if (thisControllerSup == controllerSup) {
mControllers.RemoveElementAt(i);
delete controllerData;
return NS_OK;
}
}
}
return NS_ERROR_FAILURE; // right thing to return if no controller found?
}
NS_IMETHODIMP
nsXULControllers::GetControllerId(nsIController* controller,
uint32_t* _retval) {
NS_ENSURE_ARG_POINTER(_retval);
uint32_t count = mControllers.Length();
for (uint32_t i = 0; i < count; i++) {
nsXULControllerData* controllerData = mControllers.ElementAt(i);
if (controllerData) {
nsCOMPtr<nsIController> thisController;
controllerData->GetController(getter_AddRefs(thisController));
if (thisController.get() == controller) {
*_retval = controllerData->GetControllerID();
return NS_OK;
}
}
}
return NS_ERROR_FAILURE; // none found
}
NS_IMETHODIMP
nsXULControllers::GetControllerById(uint32_t controllerID,
nsIController** _retval) {
NS_ENSURE_ARG_POINTER(_retval);
uint32_t count = mControllers.Length();
for (uint32_t i = 0; i < count; i++) {
nsXULControllerData* controllerData = mControllers.ElementAt(i);
if (controllerData && controllerData->GetControllerID() == controllerID) {
return controllerData->GetController(_retval);
}
}
return NS_ERROR_FAILURE; // none found
}
NS_IMETHODIMP
nsXULControllers::GetControllerCount(uint32_t* _retval) {
NS_ENSURE_ARG_POINTER(_retval);
*_retval = mControllers.Length();
return NS_OK;
}
|
