1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/xul/document/src/nsXULControllers.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,256 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/*
1.10 +
1.11 + This file provides the implementation for the XUL "controllers"
1.12 + object.
1.13 +
1.14 +*/
1.15 +
1.16 +#include "nsString.h"
1.17 +
1.18 +#include "nsIControllers.h"
1.19 +#include "nsIDOMElement.h"
1.20 +#include "nsXULControllers.h"
1.21 +#include "nsDOMClassInfoID.h"
1.22 +#include "nsIController.h"
1.23 +
1.24 +//----------------------------------------------------------------------
1.25 +
1.26 +nsXULControllers::nsXULControllers()
1.27 +: mCurControllerID(0)
1.28 +{
1.29 +}
1.30 +
1.31 +nsXULControllers::~nsXULControllers(void)
1.32 +{
1.33 + DeleteControllers();
1.34 +}
1.35 +
1.36 +void
1.37 +nsXULControllers::DeleteControllers()
1.38 +{
1.39 + uint32_t count = mControllers.Length();
1.40 + for (uint32_t i = 0; i < count; i++)
1.41 + {
1.42 + nsXULControllerData* controllerData = mControllers.ElementAt(i);
1.43 + delete controllerData; // releases the nsIController
1.44 + }
1.45 +
1.46 + mControllers.Clear();
1.47 +}
1.48 +
1.49 +
1.50 +nsresult
1.51 +NS_NewXULControllers(nsISupports* aOuter, REFNSIID aIID, void** aResult)
1.52 +{
1.53 + NS_PRECONDITION(aOuter == nullptr, "no aggregation");
1.54 + if (aOuter)
1.55 + return NS_ERROR_NO_AGGREGATION;
1.56 +
1.57 + nsXULControllers* controllers = new nsXULControllers();
1.58 + if (! controllers)
1.59 + return NS_ERROR_OUT_OF_MEMORY;
1.60 +
1.61 + nsresult rv;
1.62 + NS_ADDREF(controllers);
1.63 + rv = controllers->QueryInterface(aIID, aResult);
1.64 + NS_RELEASE(controllers);
1.65 + return rv;
1.66 +}
1.67 +
1.68 +NS_IMPL_CYCLE_COLLECTION_CLASS(nsXULControllers)
1.69 +
1.70 +NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsXULControllers)
1.71 + tmp->DeleteControllers();
1.72 +NS_IMPL_CYCLE_COLLECTION_UNLINK_END
1.73 +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsXULControllers)
1.74 + {
1.75 + uint32_t i, count = tmp->mControllers.Length();
1.76 + for (i = 0; i < count; ++i) {
1.77 + nsXULControllerData* controllerData = tmp->mControllers[i];
1.78 + if (controllerData) {
1.79 + cb.NoteXPCOMChild(controllerData->mController);
1.80 + }
1.81 + }
1.82 + }
1.83 +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
1.84 +
1.85 +DOMCI_DATA(XULControllers, nsXULControllers)
1.86 +
1.87 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsXULControllers)
1.88 + NS_INTERFACE_MAP_ENTRY(nsIControllers)
1.89 + NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIControllers)
1.90 + NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(XULControllers)
1.91 +NS_INTERFACE_MAP_END
1.92 +
1.93 +NS_IMPL_CYCLE_COLLECTING_ADDREF(nsXULControllers)
1.94 +NS_IMPL_CYCLE_COLLECTING_RELEASE(nsXULControllers)
1.95 +
1.96 +NS_IMETHODIMP
1.97 +nsXULControllers::GetControllerForCommand(const char *aCommand, nsIController** _retval)
1.98 +{
1.99 + NS_ENSURE_ARG_POINTER(_retval);
1.100 + *_retval = nullptr;
1.101 +
1.102 + uint32_t count = mControllers.Length();
1.103 + for (uint32_t i=0; i < count; i++)
1.104 + {
1.105 + nsXULControllerData* controllerData = mControllers.ElementAt(i);
1.106 + if (controllerData)
1.107 + {
1.108 + nsCOMPtr<nsIController> controller;
1.109 + controllerData->GetController(getter_AddRefs(controller));
1.110 + if (controller)
1.111 + {
1.112 + bool supportsCommand;
1.113 + controller->SupportsCommand(aCommand, &supportsCommand);
1.114 + if (supportsCommand) {
1.115 + *_retval = controller;
1.116 + NS_ADDREF(*_retval);
1.117 + return NS_OK;
1.118 + }
1.119 + }
1.120 + }
1.121 + }
1.122 +
1.123 + return NS_OK;
1.124 +}
1.125 +
1.126 +NS_IMETHODIMP
1.127 +nsXULControllers::InsertControllerAt(uint32_t aIndex, nsIController *controller)
1.128 +{
1.129 + nsXULControllerData* controllerData = new nsXULControllerData(++mCurControllerID, controller);
1.130 + if (!controllerData) return NS_ERROR_OUT_OF_MEMORY;
1.131 +#ifdef DEBUG
1.132 + nsXULControllerData** inserted =
1.133 +#endif
1.134 + mControllers.InsertElementAt(aIndex, controllerData);
1.135 + NS_ASSERTION(inserted != nullptr, "Insertion of controller failed");
1.136 + return NS_OK;
1.137 +}
1.138 +
1.139 +NS_IMETHODIMP
1.140 +nsXULControllers::RemoveControllerAt(uint32_t aIndex, nsIController **_retval)
1.141 +{
1.142 + NS_ENSURE_ARG_POINTER(_retval);
1.143 + *_retval = nullptr;
1.144 +
1.145 + nsXULControllerData* controllerData = mControllers.SafeElementAt(aIndex);
1.146 + if (!controllerData) return NS_ERROR_FAILURE;
1.147 +
1.148 + mControllers.RemoveElementAt(aIndex);
1.149 +
1.150 + controllerData->GetController(_retval);
1.151 + delete controllerData;
1.152 +
1.153 + return NS_OK;
1.154 +}
1.155 +
1.156 +
1.157 +NS_IMETHODIMP
1.158 +nsXULControllers::GetControllerAt(uint32_t aIndex, nsIController **_retval)
1.159 +{
1.160 + NS_ENSURE_ARG_POINTER(_retval);
1.161 + *_retval = nullptr;
1.162 +
1.163 + nsXULControllerData* controllerData = mControllers.SafeElementAt(aIndex);
1.164 + if (!controllerData) return NS_ERROR_FAILURE;
1.165 +
1.166 + return controllerData->GetController(_retval); // does the addref
1.167 +}
1.168 +
1.169 +NS_IMETHODIMP
1.170 +nsXULControllers::AppendController(nsIController *controller)
1.171 +{
1.172 + // This assigns controller IDs starting at 1 so we can use 0 to test if an ID was obtained
1.173 + nsXULControllerData* controllerData = new nsXULControllerData(++mCurControllerID, controller);
1.174 + if (!controllerData) return NS_ERROR_OUT_OF_MEMORY;
1.175 +
1.176 +#ifdef DEBUG
1.177 + nsXULControllerData** appended =
1.178 +#endif
1.179 + mControllers.AppendElement(controllerData);
1.180 + NS_ASSERTION(appended != nullptr, "Appending controller failed");
1.181 + return NS_OK;
1.182 +}
1.183 +
1.184 +NS_IMETHODIMP
1.185 +nsXULControllers::RemoveController(nsIController *controller)
1.186 +{
1.187 + // first get the identity pointer
1.188 + nsCOMPtr<nsISupports> controllerSup(do_QueryInterface(controller));
1.189 + // then find it
1.190 + uint32_t count = mControllers.Length();
1.191 + for (uint32_t i = 0; i < count; i++)
1.192 + {
1.193 + nsXULControllerData* controllerData = mControllers.ElementAt(i);
1.194 + if (controllerData)
1.195 + {
1.196 + nsCOMPtr<nsIController> thisController;
1.197 + controllerData->GetController(getter_AddRefs(thisController));
1.198 + nsCOMPtr<nsISupports> thisControllerSup(do_QueryInterface(thisController)); // get identity
1.199 + if (thisControllerSup == controllerSup)
1.200 + {
1.201 + mControllers.RemoveElementAt(i);
1.202 + delete controllerData;
1.203 + return NS_OK;
1.204 + }
1.205 + }
1.206 + }
1.207 + return NS_ERROR_FAILURE; // right thing to return if no controller found?
1.208 +}
1.209 +
1.210 +/* unsigned long getControllerId (in nsIController controller); */
1.211 +NS_IMETHODIMP
1.212 +nsXULControllers::GetControllerId(nsIController *controller, uint32_t *_retval)
1.213 +{
1.214 + NS_ENSURE_ARG_POINTER(_retval);
1.215 +
1.216 + uint32_t count = mControllers.Length();
1.217 + for (uint32_t i = 0; i < count; i++)
1.218 + {
1.219 + nsXULControllerData* controllerData = mControllers.ElementAt(i);
1.220 + if (controllerData)
1.221 + {
1.222 + nsCOMPtr<nsIController> thisController;
1.223 + controllerData->GetController(getter_AddRefs(thisController));
1.224 + if (thisController.get() == controller)
1.225 + {
1.226 + *_retval = controllerData->GetControllerID();
1.227 + return NS_OK;
1.228 + }
1.229 + }
1.230 + }
1.231 + return NS_ERROR_FAILURE; // none found
1.232 +}
1.233 +
1.234 +/* nsIController getControllerById (in unsigned long controllerID); */
1.235 +NS_IMETHODIMP
1.236 +nsXULControllers::GetControllerById(uint32_t controllerID, nsIController **_retval)
1.237 +{
1.238 + NS_ENSURE_ARG_POINTER(_retval);
1.239 +
1.240 + uint32_t count = mControllers.Length();
1.241 + for (uint32_t i = 0; i < count; i++)
1.242 + {
1.243 + nsXULControllerData* controllerData = mControllers.ElementAt(i);
1.244 + if (controllerData && controllerData->GetControllerID() == controllerID)
1.245 + {
1.246 + return controllerData->GetController(_retval);
1.247 + }
1.248 + }
1.249 + return NS_ERROR_FAILURE; // none found
1.250 +}
1.251 +
1.252 +NS_IMETHODIMP
1.253 +nsXULControllers::GetControllerCount(uint32_t *_retval)
1.254 +{
1.255 + NS_ENSURE_ARG_POINTER(_retval);
1.256 + *_retval = mControllers.Length();
1.257 + return NS_OK;
1.258 +}
1.259 +
