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 | #endif
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27 |
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28 | using std::string;
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29 | using std::vector;
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30 | using namespace flair::core;
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31 | using namespace flair::gui;
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32 |
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33 | namespace {
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34 | #ifdef __XENO__
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35 | RT_HEAP rt_xml_heap;
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36 |
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37 | void rt_xml2_free(void *mem) {
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38 | // Printf("free %x\n",mem);
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39 | if (mem == NULL)
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40 | return;
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41 | int status = rt_heap_free(&rt_xml_heap, mem);
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42 |
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43 | if (status != 0) {
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44 | char errorMsg[256];
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45 | printf("libxml2: rt_heap_free error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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46 | }
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47 | }
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48 |
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49 | void *rt_xml2_alloc(size_t sz) {
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50 | void *ptr;
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51 | // printf("alloc %i\n",sz);
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52 | int status = rt_heap_alloc(&rt_xml_heap, sz, TM_NONBLOCK, &ptr);
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53 | if (status != 0) {
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54 | char errorMsg[256];
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55 | printf("libxml2: rt_heap_alloc error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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56 | }
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57 | // Printf("alloc %x %i\n",ptr,sz);
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58 |
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59 | return ptr;
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60 | }
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61 |
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62 | void *rt_xml2_realloc(void *emem, size_t sz) {
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63 | // Printf("realloc %x %i -> %i\n",emem,sz,sz);
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64 | void *mem_re;
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65 |
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66 | if (emem == NULL) {
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67 | return rt_xml2_alloc(sz);
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68 | } else if (sz == 0) {
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69 | rt_xml2_free(emem);
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70 | }
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71 |
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72 | mem_re = rt_xml2_alloc(sz);
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73 |
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74 | memcpy(mem_re, emem, sz);
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75 |
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76 | rt_xml2_free(emem);
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77 |
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78 | return mem_re;
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79 | }
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80 |
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81 | char *rt_xml2_strdup(const char *str) {
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82 | // printf("strdup %s\n",str);
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83 | char *s = (char *)rt_xml2_alloc(strlen(str) + 1);
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84 | if (s == NULL)
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85 | return NULL;
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86 |
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87 | strcpy(s, str);
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88 | return s;
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89 | }
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90 | #endif //__XENO__
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91 | }
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92 |
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93 | Widget_impl::Widget_impl(Widget *self, const Widget *parent, string name,
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94 | string type) {
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95 | // Printf("Widget %s\n",name.c_str());
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96 | isenabled = true;
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97 | file_node = NULL;
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98 | this->self = self;
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99 |
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100 | // n'est execute qu'une fois lorsqu'on construit le FrameworkManager
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101 | if (parent == NULL) {
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102 | #ifdef __XENO__
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103 | string tmp_name;
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104 | tmp_name = name + "-xml";
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105 | int status = rt_heap_create(&rt_xml_heap, tmp_name.c_str(), RT_XML_HEAP, H_FIFO);
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106 | if (status != 0) {
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107 | char errorMsg[256];
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108 | self->Err("rt_heap_create error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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109 | }
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110 |
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111 | xmlMemSetup(rt_xml2_free, rt_xml2_alloc, rt_xml2_realloc, rt_xml2_strdup);
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112 | #endif //__XENO__
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113 | }
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114 |
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115 | // xml init
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116 | if (parent == NULL) {
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117 | // create local doc
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118 | send_doc = xmlNewDoc((xmlChar *)"1.0");
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119 | send_node = xmlNewNode(NULL, (xmlChar *)type.c_str());
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120 | xmlDocSetRootElement(send_doc, send_node);
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121 | xmlSetProp(send_node, (xmlChar *)"name",
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122 | (xmlChar *)self->ObjectName().c_str());
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123 | } else {
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124 | parent->pimpl_->AddChild(self);
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125 |
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126 | // get node corresponding to this widget in the xml file
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127 | if (parent->pimpl_->file_node != NULL) {
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128 | xmlChar *search = xmlCharStrdup(type.c_str());
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129 | file_node =
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130 | GetNodeByProp(parent->pimpl_->file_node->xmlChildrenNode, search,
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131 | (xmlChar *)"name", (xmlChar *)name.c_str());
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132 | xmlFree(search);
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133 | } else {
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134 | self->Err("parent->file_node is NULL\n");
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135 | }
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136 |
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137 | if (file_node == NULL) {
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138 | self->Warn("%s, no match found in xml file\n", type.c_str());
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139 | xmlNode *node;
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140 | node = xmlNewNode(NULL, (xmlChar *)type.c_str());
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141 | xmlSetProp(node, (xmlChar *)"name", (xmlChar *)name.c_str());
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142 | file_node = xmlAddChild(parent->pimpl_->file_node, node);
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143 | //((Widget*)getFrameworkManager())->pimpl_->PrintXml();
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144 | }
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145 |
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146 | send_doc = parent->pimpl_->CopyDoc();
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147 |
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148 | // on recupere le dernier node
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149 | xmlNodePtr node = xmlDocGetRootElement(send_doc);
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150 | while (node->children != NULL)
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151 | node = node->children;
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152 |
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153 | // on ajoute le node du widget
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154 | send_node = xmlNewNode(NULL, (xmlChar *)type.c_str());
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155 | xmlSetProp(send_node, (xmlChar *)"name", (xmlChar *)name.c_str());
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156 | xmlAddChild(node, send_node);
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157 | }
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158 |
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159 | // Printf("Widget ok %s\n",name.c_str());
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160 | }
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161 |
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162 | Widget_impl::~Widget_impl() {
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163 | // Printf("destruction widget %s\n",self->ObjectName().c_str());
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164 |
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165 | if (self->Parent() != NULL)
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166 | ((Widget *)(self->Parent()))->pimpl_->RemoveChild(self);
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167 |
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168 | // on efface les widgets enfants avant d'envoyer son propre delete au sol
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169 | // dans le delete child on modifie le child du parent, donc on se refere
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170 | // toujours au premier
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171 | while (childs.size() != 0) {
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172 | // Printf("child %i
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173 | // %s\n",childs.size(),childs.front()->ObjectName().c_str());
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174 | if (childs.front() != NULL)
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175 | delete childs.front();
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176 | }
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177 | childs.clear();
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178 |
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179 | self->SetVolatileXmlProp("Delete", true);
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180 |
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181 | if (self->Parent() != NULL)
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182 | SendXml();
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183 |
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184 | xmlFreeDoc(send_doc);
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185 |
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186 | if (self->Parent() == NULL) {
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187 | xmlCleanupParser();
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188 | #ifdef __XENO__
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189 | int status;
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190 | RT_HEAP_INFO info;
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191 | status = rt_heap_inquire(&rt_xml_heap, &info);
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192 | if (status != 0) {
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193 | char errorMsg[256];
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194 | self->Err("rt_heap_inquire error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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195 | }
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196 | if (info.usedmem != 0)
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197 | self->Err("fuite memoire xml heap (%ld)\n", info.usedmem);
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198 | // Printf("fin heap xml\n");
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199 | status = rt_heap_delete(&rt_xml_heap);
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200 | if (status != 0) {
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201 | char errorMsg[256];
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202 | self->Err("rt_heap_delete error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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203 | }
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204 | #endif
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205 | }
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206 | // Printf("destruction widget %s ok\n",self->ObjectName().c_str());
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207 | }
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208 |
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209 | void Widget_impl::AddChild(const Widget *child) {
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210 | childs.push_back((Widget *)child);
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211 | }
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212 |
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213 | void Widget_impl::RemoveChild(const Widget *child) {
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214 | for (vector<Widget *>::iterator it = childs.begin(); it < childs.end();
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215 | it++) {
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216 | if (*it == child) {
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217 | childs.erase(it);
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218 | break;
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219 | }
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220 | }
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221 | }
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222 |
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223 | xmlDocPtr Widget_impl::CopyDoc(void) { return xmlCopyDoc(send_doc, 1); }
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224 |
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225 | void Widget_impl::ClearXmlProps(void) {
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226 | xmlUnlinkNode(send_node);
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227 | xmlFreeNode(send_node);
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228 |
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229 | xmlNodePtr node;
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230 | node = xmlDocGetRootElement(send_doc);
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231 |
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232 | if (node == NULL) { // il ne reste plus rien, on refait le rootelement
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233 | send_node = xmlNewNode(NULL, (xmlChar *)XML_ROOT_TYPE);
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234 | xmlSetProp(send_node, (xmlChar *)"name",
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235 | (xmlChar *)self->ObjectName().c_str());
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236 | xmlDocSetRootElement(send_doc, send_node);
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237 | } else {
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238 | while (node->children != NULL)
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239 | node = node->children;
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240 | send_node = xmlNewNode(NULL, (xmlChar *)self->ObjectType().c_str());
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241 | xmlSetProp(send_node, (xmlChar *)"name",
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242 | (xmlChar *)self->ObjectName().c_str());
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243 | xmlAddChild(node, send_node);
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244 | }
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245 | }
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246 |
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247 | void Widget_impl::printSendNode() {
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248 |
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249 | xmlChar *xmlbuff;
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250 | int buffersize;
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251 | xmlDocDumpFormatMemory(send_doc, &xmlbuff, &buffersize, 1);
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252 | Printf("xml:\n%s\n", xmlbuff);
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253 | xmlFree(xmlbuff);
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254 | }
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255 |
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256 | void Widget_impl::SendXml(void) {
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257 | if (getUiCom() != NULL) {
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258 | xmlChar *xmlbuff;
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259 | int buffersize;
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260 | xmlDocDumpFormatMemory(send_doc, &xmlbuff, &buffersize, 0);
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261 | getUiCom()->Send((char *)xmlbuff, buffersize);
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262 | xmlFree(xmlbuff);
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263 |
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264 | ClearXmlProps();
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265 | }
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266 | }
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267 |
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268 | void Widget_impl::setEnabled(bool status) {
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269 | self->SetVolatileXmlProp("IsEnabled", status);
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270 | SendXml();
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271 | }
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272 |
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273 | void Widget_impl::ProcessXML(xmlNode *node) {
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274 | // Printf("ProcessXML %s %s\n",xmlGetProp(send_node,
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275 | // (xmlChar*)"name"),send_node->name);
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276 | xmlNode *cur_node = NULL;
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277 |
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278 | for (size_t i = 0; i < childs.size(); i++) {
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279 | for (cur_node = node; cur_node; cur_node = cur_node->next) {
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280 | if (cur_node->type == XML_ELEMENT_NODE) {
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281 | // Printf("recherche %s\n", xmlGetProp(cur_node, (xmlChar*)"name"));
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282 | xmlChar *name = NULL;
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283 | name = xmlGetProp(cur_node, (xmlChar *)"name");
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284 | if (!xmlStrcmp((xmlChar *)childs[i]->ObjectName().c_str(), name)) {
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285 | // Printf("correspond %s\n",childs[i]->ObjectName().c_str());
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286 | xmlChar *new_name = NULL;
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287 | new_name = xmlGetProp(cur_node, (xmlChar *)"new_name");
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288 | if (new_name != NULL) {
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289 | unsigned char *ren_name =
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290 | new_name; // xmlGetProp(cur_node, (xmlChar*)"new_name");
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291 | self->Warn(
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292 | "%s existe deja, renommage en %s; possiblite de problemes!!\n",
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293 | childs[i]->ObjectName().c_str(), new_name);
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294 | childs[i]->Object::pimpl_->name = ((const char *)ren_name);
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295 | xmlSetProp(childs[i]->pimpl_->send_node, (xmlChar *)"name",
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296 | xmlGetProp(cur_node, (xmlChar *)"new_name"));
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297 | xmlFree(new_name);
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298 | if (name != NULL)
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299 | xmlFree(name);
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300 | break;
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301 | }
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302 |
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303 | if (name != NULL)
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304 | xmlFree(name);
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305 |
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306 | // update file node
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307 | xmlAttr *cur_prop = NULL;
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308 | // xmlAttr *file_prop = NULL;
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309 | for (cur_prop = cur_node->properties; cur_prop;
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310 | cur_prop = cur_prop->next) {
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311 | // Printf("rcv prop %s
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312 | // %s\n",cur_prop->name,cur_prop->children->content);
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313 | xmlSetProp(childs[i]->pimpl_->file_node, cur_prop->name,
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314 | cur_prop->children->content);
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315 | }
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316 |
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317 | childs[i]->XmlEvent();
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318 |
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319 | childs[i]->pimpl_->ProcessXML(cur_node->children);
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320 | break;
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321 | }
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322 | if (name != NULL)
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323 | xmlFree(name);
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324 | }
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325 | }
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326 | }
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327 |
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328 | // printf("fin ProcessXML %s %s\n",xmlGetProp(send_node,
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329 | // (xmlChar*)"name"),send_node->name);
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330 | }
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331 |
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332 | xmlNodePtr Widget_impl::GetNodeByProp(xmlNodePtr doc, xmlChar *type,
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333 | xmlChar *prop, xmlChar *value) {
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334 | // printf("cherche keyword: %s %s %s\n", type,prop,value);
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335 | xmlNode *cur_node = NULL;
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336 | for (cur_node = doc; cur_node; cur_node = cur_node->next) {
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337 | if (cur_node->type == XML_ELEMENT_NODE) {
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338 | // printf("node %s %s\n",xmlGetProp(cur_node,
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339 | // (xmlChar*)"name"),cur_node->name);
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340 | xmlChar *test = NULL;
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341 | test = xmlGetProp(cur_node, prop);
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342 | if (!xmlStrcmp(test, value) && !xmlStrcmp(cur_node->name, type)) {
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343 | // printf("ok\n");
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344 | if (test != NULL)
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345 | xmlFree(test);
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346 | return cur_node;
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347 | }
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348 | if (test != NULL)
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349 | xmlFree(test);
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350 | }
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351 | }
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352 |
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353 | return NULL;
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354 | }
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