1 | // %flair:license{
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2 | // This file is part of the Flair framework distributed under the
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3 | // CECILL-C License, Version 1.0.
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4 | // %flair:license}
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5 | // created: 2012/05/02
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6 | // filename: Widget.cpp
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7 | //
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8 | // author: Guillaume Sanahuja
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9 | // Copyright Heudiasyc UMR UTC/CNRS 7253
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10 | //
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11 | // version: $Id: $
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12 | //
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13 | // purpose: classe pour widget
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14 | //
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15 | //
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16 | /*********************************************************************/
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17 |
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18 | #include "Widget.h"
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19 | #include "Widget_impl.h"
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20 | #include "Object_impl.h"
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21 | #include "FrameworkManager.h"
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22 | #include "FrameworkManager_impl.h"
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23 | #include "config.h"
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24 | #ifdef __XENO__
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25 | #include <native/heap.h>
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26 | #else
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27 | #include <errno.h>
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28 | #include <cstring>
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29 | #endif
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30 |
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31 | using std::string;
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32 | using std::vector;
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33 | using namespace flair::core;
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34 | using namespace flair::gui;
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35 |
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36 | namespace{
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37 | #ifdef __XENO__
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38 | RT_HEAP xml_heap;
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39 |
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40 | void xml2_free(void *mem)
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41 | {
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42 | //Printf("free %x\n",mem);
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43 | if(mem==NULL) return;
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44 | int status=rt_heap_free(&xml_heap,mem);
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45 |
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46 | if(status!=0)
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47 | {
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48 | printf("libxml2: rt_heap_free error (%s)\n",strerror(-status));
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49 | }
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50 | }
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51 |
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52 | void *xml2_alloc(size_t sz)
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53 | {
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54 | void *ptr;
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55 | //printf("alloc %i\n",sz);
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56 | int status=rt_heap_alloc(&xml_heap,sz,TM_NONBLOCK ,&ptr);
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57 | if(status!=0)
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58 | {
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59 | printf("libxml2: rt_heap_alloc error (%s)\n",strerror(-status));
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60 | }
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61 | //Printf("alloc %x %i\n",ptr,sz);
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62 |
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63 | return ptr;
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64 |
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65 | }
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66 |
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67 | void *xml2_realloc(void *emem,size_t sz)
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68 | {
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69 | //Printf("realloc %x %i -> %i\n",emem,sz,sz);
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70 | void *mem_re;
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71 |
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72 |
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73 | if (emem == NULL)
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74 | {
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75 | return xml2_alloc(sz);
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76 | }
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77 | else if (sz == 0)
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78 | {
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79 | xml2_free(emem);
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80 | }
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81 |
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82 | mem_re = xml2_alloc(sz);
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83 |
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84 | memcpy(mem_re, emem, sz);
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85 |
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86 | xml2_free(emem);
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87 |
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88 | return mem_re;
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89 | }
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90 |
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91 | char *xml2_strdup(const char * str)
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92 | {
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93 | // printf("strdup %s\n",str);
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94 | char *s = (char*)xml2_alloc(strlen(str) + 1);
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95 | if (s == NULL)
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96 | return NULL;
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97 |
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98 | strcpy(s, str);
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99 | return s;
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100 |
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101 | }
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102 | #endif //__XENO__
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103 | }
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104 |
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105 | Widget_impl::Widget_impl(Widget* self,const Widget* parent,string name,string type)
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106 | {
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107 | //Printf("Widget %s\n",name.c_str());
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108 | isenabled=true;
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109 | file_node=NULL;
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110 | this->self=self;
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111 |
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112 | //n'est execute qu'une fois lorsqu'on construit le FrameworkManager
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113 | if(parent==NULL)
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114 | {
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115 | #ifdef __XENO__
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116 | string tmp_name;
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117 | tmp_name=name + "-xml";
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118 | int status=rt_heap_create(&xml_heap,tmp_name.c_str(),XML_HEAP,H_FIFO);
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119 | if(status!=0)
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120 | {
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121 | self->Err("rt_heap_create error (%s)\n",strerror(-status));
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122 | }
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123 |
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124 | xmlMemSetup(xml2_free,xml2_alloc, xml2_realloc,xml2_strdup);
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125 | #endif //__XENO__
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126 | }
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127 |
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128 | //xml init
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129 | if(parent==NULL)
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130 | {
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131 | //create local doc
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132 | send_doc = xmlNewDoc((xmlChar*)"1.0");
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133 | send_node = xmlNewNode(NULL, (xmlChar*)type.c_str());
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134 | xmlDocSetRootElement(send_doc, send_node);
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135 | xmlSetProp(send_node,(xmlChar*)"name",(xmlChar*)self->ObjectName().c_str());
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136 | }
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137 | else
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138 | {
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139 | parent->pimpl_->AddChild(self);
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140 |
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141 | //get node corresponding to this widget in the xml file
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142 | if(parent->pimpl_->file_node!=NULL)
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143 | {
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144 | xmlChar* search=xmlCharStrdup(type.c_str());
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145 | file_node=GetNodeByProp(parent->pimpl_->file_node->xmlChildrenNode,search,(xmlChar*)"name",(xmlChar*)name.c_str());
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146 | xmlFree(search);
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147 | }
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148 | else
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149 | {
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150 | self->Err("parent->file_node is NULL\n");
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151 | }
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152 |
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153 | if(file_node==NULL)
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154 | {
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155 | self->Warn("%s, no match found in xml file\n",type.c_str());
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156 | xmlNode *node;
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157 | node=xmlNewNode(NULL, (xmlChar*)type.c_str());
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158 | xmlSetProp(node,(xmlChar*)"name",(xmlChar*)name.c_str());
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159 | file_node=xmlAddChild(parent->pimpl_->file_node,node);
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160 | //((Widget*)getFrameworkManager())->pimpl_->PrintXml();
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161 | }
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162 |
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163 | send_doc=parent->pimpl_->CopyDoc();
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164 |
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165 | //on recupere le dernier node
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166 | xmlNodePtr node=xmlDocGetRootElement(send_doc);
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167 | while(node->children!=NULL) node=node->children;
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168 |
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169 | //on ajoute le node du widget
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170 | send_node = xmlNewNode(NULL, (xmlChar*)type.c_str());
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171 | xmlSetProp(send_node,(xmlChar*)"name",(xmlChar*)name.c_str());
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172 | xmlAddChild(node,send_node);
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173 | }
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174 |
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175 | //Printf("Widget ok %s\n",name.c_str());
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176 | }
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177 |
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178 | Widget_impl::~Widget_impl()
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179 | {
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180 | //Printf("destruction widget %s\n",self->ObjectName().c_str());
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181 |
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182 | if(self->Parent()!=NULL) ((Widget*)(self->Parent()))->pimpl_->RemoveChild(self);
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183 |
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184 | //on efface les widgets enfants avant d'envoyer son propre delete au sol
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185 | //dans le delete child on modifie le child du parent, donc on se refere toujours au premier
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186 | while(childs.size()!=0)
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187 | {
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188 | //Printf("child %i %s\n",childs.size(),childs.front()->ObjectName().c_str());
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189 | if(childs.front()!=NULL) delete childs.front();
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190 | }
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191 | childs.clear();
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192 |
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193 | self->SetVolatileXmlProp("Delete",true);
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194 |
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195 | if(self->Parent()!=NULL) SendXml();
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196 |
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197 | xmlFreeDoc(send_doc);
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198 |
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199 | if(self->Parent()==NULL)
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200 | {
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201 | xmlCleanupParser();
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202 | #ifdef __XENO__
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203 | int status;
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204 | RT_HEAP_INFO info;
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205 | status=rt_heap_inquire(&xml_heap,&info);
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206 | if(status!=0)
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207 | {
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208 | self->Err("rt_heap_inquire error (%s)\n",strerror(-status));
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209 | }
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210 | if(info.usedmem!=0) self->Err("fuite memoire xml heap (%ld)\n",info.usedmem);
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211 | //Printf("fin heap xml\n");
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212 | status=rt_heap_delete(&xml_heap);
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213 | if(status!=0)
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214 | {
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215 | self->Err("rt_heap_delete error (%s)\n",strerror(-status));
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216 | }
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217 | #endif
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218 | }
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219 | //Printf("destruction widget %s ok\n",self->ObjectName().c_str());
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220 | }
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221 |
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222 | void Widget_impl::AddChild(const Widget* child)
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223 | {
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224 | childs.push_back((Widget*)child);
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225 | }
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226 |
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227 | void Widget_impl::RemoveChild(const Widget* child)
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228 | {
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229 | for(vector<Widget*>::iterator it=childs.begin() ; it < childs.end(); it++ )
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230 | {
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231 | if(*it==child)
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232 | {
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233 | childs.erase(it);
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234 | break;
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235 | }
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236 | }
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237 | }
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238 |
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239 | xmlDocPtr Widget_impl::CopyDoc(void)
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240 | {
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241 | return xmlCopyDoc(send_doc,1);
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242 | }
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243 |
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244 | void Widget_impl::ClearXmlProps(void) {
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245 | xmlUnlinkNode(send_node);
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246 | xmlFreeNode(send_node);
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247 |
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248 | xmlNodePtr node;
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249 | node=xmlDocGetRootElement(send_doc);
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250 |
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251 | if(node==NULL) {//il ne reste plus rien, on refait le rootelement
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252 | send_node = xmlNewNode(NULL, (xmlChar*)XML_ROOT_TYPE);
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253 | xmlSetProp(send_node,(xmlChar*)"name",(xmlChar*)self->ObjectName().c_str());
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254 | xmlDocSetRootElement(send_doc, send_node);
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255 | } else {
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256 | while(node->children!=NULL) node=node->children;
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257 | send_node = xmlNewNode(NULL, (xmlChar*)self->ObjectType().c_str());
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258 | xmlSetProp(send_node,(xmlChar*)"name",(xmlChar*)self->ObjectName().c_str());
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259 | xmlAddChild(node,send_node);
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260 | }
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261 | }
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262 |
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263 | void Widget_impl::printSendNode() {
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264 |
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265 | xmlChar *xmlbuff;
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266 | int buffersize;
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267 | xmlDocDumpFormatMemory(send_doc, &xmlbuff, &buffersize, 1);
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268 | Printf("xml:\n%s\n",xmlbuff);
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269 | xmlFree(xmlbuff);
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270 | }
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271 |
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272 | void Widget_impl::SendXml(void)
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273 | {
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274 | if(getUiCom()!=NULL) {
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275 | xmlChar *xmlbuff;
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276 | int buffersize;
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277 | xmlDocDumpFormatMemory(send_doc, &xmlbuff, &buffersize, 0);
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278 | getUiCom()->Send((char*)xmlbuff,buffersize);
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279 | xmlFree(xmlbuff);
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280 |
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281 | ClearXmlProps();
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282 | }
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283 | }
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284 |
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285 | void Widget_impl::setEnabled(bool status) {
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286 | self->SetVolatileXmlProp("IsEnabled",status);
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287 | SendXml();
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288 | }
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289 |
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290 |
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291 | void Widget_impl::ProcessXML(xmlNode *node)
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292 | {
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293 | //Printf("ProcessXML %s %s\n",xmlGetProp(send_node, (xmlChar*)"name"),send_node->name);
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294 | xmlNode *cur_node = NULL;
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295 |
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296 | for(size_t i=0;i<childs.size();i++)
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297 | {
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298 | for (cur_node = node; cur_node; cur_node = cur_node->next)
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299 | {
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300 | if (cur_node->type == XML_ELEMENT_NODE)
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301 | {
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302 | //Printf("recherche %s\n", xmlGetProp(cur_node, (xmlChar*)"name"));
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303 | xmlChar* name=NULL;
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304 | name=xmlGetProp(cur_node, (xmlChar*)"name");
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305 | if (!xmlStrcmp((xmlChar *)childs[i]->ObjectName().c_str(), name))
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306 | {
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307 | //Printf("correspond %s\n",childs[i]->ObjectName().c_str());
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308 | xmlChar* new_name=NULL;
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309 | new_name=xmlGetProp(cur_node, (xmlChar*)"new_name");
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310 | if(new_name!=NULL)
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311 | {
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312 | unsigned char* ren_name=new_name;//xmlGetProp(cur_node, (xmlChar*)"new_name");
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313 | self->Warn("%s existe deja, renommage en %s; possiblite de problemes!!\n",childs[i]->ObjectName().c_str(),new_name);
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314 | childs[i]->Object::pimpl_->name=((const char*)ren_name);
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315 | xmlSetProp(childs[i]->pimpl_->send_node,(xmlChar*)"name",xmlGetProp(cur_node, (xmlChar*)"new_name"));
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316 | xmlFree(new_name);
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317 | if(name!=NULL) xmlFree(name);
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318 | break;
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319 | }
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320 |
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321 | if(name!=NULL) xmlFree(name);
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322 |
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323 | //update file node
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324 | xmlAttr *cur_prop = NULL;
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325 | //xmlAttr *file_prop = NULL;
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326 | for (cur_prop = cur_node->properties; cur_prop; cur_prop = cur_prop->next)
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327 | {
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328 | //Printf("rcv prop %s %s\n",cur_prop->name,cur_prop->children->content);
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329 | xmlSetProp(childs[i]->pimpl_->file_node,cur_prop->name,cur_prop->children->content);
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330 | }
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331 |
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332 | childs[i]->XmlEvent();
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333 |
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334 | childs[i]->pimpl_->ProcessXML(cur_node->children);
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335 | break;
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336 |
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337 | }
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338 | if(name!=NULL) xmlFree(name);
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339 | }
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340 | }
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341 | }
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342 |
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343 | //printf("fin ProcessXML %s %s\n",xmlGetProp(send_node, (xmlChar*)"name"),send_node->name);
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344 | }
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345 |
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346 |
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347 | xmlNodePtr Widget_impl::GetNodeByProp(xmlNodePtr doc,xmlChar *type,xmlChar *prop,xmlChar *value)
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348 | {
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349 | //printf("cherche keyword: %s %s %s\n", type,prop,value);
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350 | xmlNode *cur_node = NULL;
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351 | for (cur_node = doc; cur_node; cur_node = cur_node->next)
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352 | {
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353 | if (cur_node->type == XML_ELEMENT_NODE)
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354 | {
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355 | //printf("node %s %s\n",xmlGetProp(cur_node, (xmlChar*)"name"),cur_node->name);
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356 | xmlChar *test = NULL;
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357 | test=xmlGetProp(cur_node, prop);
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358 | if(!xmlStrcmp(test,value) && !xmlStrcmp(cur_node->name,type ))
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359 | {
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360 | //printf("ok\n");
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361 | if(test!=NULL) xmlFree(test);
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362 | return cur_node;
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363 | }
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364 | if(test!=NULL) xmlFree(test);
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365 | }
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366 | }
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367 |
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368 | return NULL;
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369 | }
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