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1 /* |
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2 * Copyright (C) 2000 Harri Porten (porten@kde.org) |
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3 * Copyright (C) 2006 Jon Shier (jshier@iastate.edu) |
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4 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reseved. |
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5 * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org) |
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6 * |
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7 * This library is free software; you can redistribute it and/or |
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8 * modify it under the terms of the GNU Lesser General Public |
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9 * License as published by the Free Software Foundation; either |
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10 * version 2 of the License, or (at your option) any later version. |
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11 * |
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12 * This library is distributed in the hope that it will be useful, |
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Lesser General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this library; if not, write to the Free Software |
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19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
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20 * USA |
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21 */ |
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22 |
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23 #include "config.h" |
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24 #include "JSDOMWindowBase.h" |
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25 |
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26 #include "Chrome.h" |
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27 #include "Console.h" |
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28 #include "DOMWindow.h" |
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29 #include "Frame.h" |
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30 #include "InspectorController.h" |
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31 #include "JSDOMWindowCustom.h" |
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32 #include "JSNode.h" |
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33 #include "Logging.h" |
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34 #include "Page.h" |
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35 #include "ScriptController.h" |
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36 #include "SecurityOrigin.h" |
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37 #include "Settings.h" |
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38 #include "WebCoreJSClientData.h" |
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39 #include <wtf/Threading.h> |
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40 #include <wtf/text/CString.h> |
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41 |
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42 using namespace JSC; |
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43 |
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44 namespace WebCore { |
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45 |
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46 const ClassInfo JSDOMWindowBase::s_info = { "Window", &JSDOMGlobalObject::s_info, 0, 0 }; |
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47 |
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48 JSDOMWindowBase::JSDOMWindowBaseData::JSDOMWindowBaseData(PassRefPtr<DOMWindow> window, JSDOMWindowShell* shell) |
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49 : JSDOMGlobalObjectData(shell->world(), destroyJSDOMWindowBaseData) |
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50 , impl(window) |
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51 , shell(shell) |
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52 { |
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53 } |
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54 |
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55 JSDOMWindowBase::JSDOMWindowBase(NonNullPassRefPtr<Structure> structure, PassRefPtr<DOMWindow> window, JSDOMWindowShell* shell) |
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56 : JSDOMGlobalObject(structure, new JSDOMWindowBaseData(window, shell), shell) |
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57 { |
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58 GlobalPropertyInfo staticGlobals[] = { |
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59 GlobalPropertyInfo(Identifier(globalExec(), "document"), jsNull(), DontDelete | ReadOnly), |
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60 GlobalPropertyInfo(Identifier(globalExec(), "window"), d()->shell, DontDelete | ReadOnly) |
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61 }; |
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62 |
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63 addStaticGlobals(staticGlobals, sizeof(staticGlobals) / sizeof(GlobalPropertyInfo)); |
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64 } |
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65 |
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66 void JSDOMWindowBase::updateDocument() |
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67 { |
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68 ASSERT(d()->impl->document()); |
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69 ExecState* exec = globalExec(); |
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70 symbolTablePutWithAttributes(Identifier(exec, "document"), toJS(exec, this, d()->impl->document()), DontDelete | ReadOnly); |
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71 } |
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72 |
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73 ScriptExecutionContext* JSDOMWindowBase::scriptExecutionContext() const |
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74 { |
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75 return d()->impl->document(); |
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76 } |
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77 |
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78 String JSDOMWindowBase::crossDomainAccessErrorMessage(const JSGlobalObject* other) const |
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79 { |
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80 KURL originURL = asJSDOMWindow(other)->impl()->url(); |
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81 KURL targetURL = d()->shell->window()->impl()->url(); |
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82 if (originURL.isNull() || targetURL.isNull()) |
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83 return String(); |
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84 |
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85 // FIXME: this error message should contain more specifics of why the same origin check has failed. |
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86 return String::format("Unsafe JavaScript attempt to access frame with URL %s from frame with URL %s. Domains, protocols and ports must match.\n", |
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87 targetURL.string().utf8().data(), originURL.string().utf8().data()); |
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88 } |
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89 |
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90 void JSDOMWindowBase::printErrorMessage(const String& message) const |
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91 { |
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92 printErrorMessageForFrame(impl()->frame(), message); |
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93 } |
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94 |
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95 ExecState* JSDOMWindowBase::globalExec() |
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96 { |
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97 // We need to make sure that any script execution happening in this |
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98 // frame does not destroy it |
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99 if (Frame *frame = impl()->frame()) |
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100 frame->keepAlive(); |
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101 return Base::globalExec(); |
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102 } |
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103 |
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104 bool JSDOMWindowBase::supportsProfiling() const |
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105 { |
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106 #if !ENABLE(JAVASCRIPT_DEBUGGER) || !ENABLE(INSPECTOR) |
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107 return false; |
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108 #else |
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109 Frame* frame = impl()->frame(); |
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110 if (!frame) |
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111 return false; |
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112 |
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113 Page* page = frame->page(); |
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114 if (!page) |
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115 return false; |
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116 |
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117 return page->inspectorController()->profilerEnabled(); |
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118 #endif |
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119 } |
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120 |
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121 bool JSDOMWindowBase::shouldInterruptScript() const |
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122 { |
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123 ASSERT(impl()->frame()); |
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124 Page* page = impl()->frame()->page(); |
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125 |
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126 // See <rdar://problem/5479443>. We don't think that page can ever be NULL |
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127 // in this case, but if it is, we've gotten into a state where we may have |
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128 // hung the UI, with no way to ask the client whether to cancel execution. |
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129 // For now, our solution is just to cancel execution no matter what, |
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130 // ensuring that we never hang. We might want to consider other solutions |
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131 // if we discover problems with this one. |
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132 ASSERT(page); |
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133 if (!page) |
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134 return true; |
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135 |
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136 return page->chrome()->shouldInterruptJavaScript(); |
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137 } |
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138 |
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139 void JSDOMWindowBase::willRemoveFromWindowShell() |
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140 { |
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141 setCurrentEvent(0); |
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142 } |
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143 |
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144 JSObject* JSDOMWindowBase::toThisObject(ExecState*) const |
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145 { |
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146 return shell(); |
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147 } |
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148 |
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149 JSDOMWindowShell* JSDOMWindowBase::shell() const |
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150 { |
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151 return d()->shell; |
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152 } |
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153 |
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154 JSGlobalData* JSDOMWindowBase::commonJSGlobalData() |
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155 { |
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156 ASSERT(isMainThread()); |
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157 |
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158 static JSGlobalData* globalData = 0; |
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159 if (!globalData) { |
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160 globalData = JSGlobalData::createLeaked(ThreadStackTypeLarge).releaseRef(); |
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161 globalData->timeoutChecker.setTimeoutInterval(10000); // 10 seconds |
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162 #ifndef NDEBUG |
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163 globalData->exclusiveThread = currentThread(); |
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164 #endif |
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165 initNormalWorldClientData(globalData); |
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166 } |
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167 |
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168 return globalData; |
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169 } |
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170 |
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171 void JSDOMWindowBase::destroyJSDOMWindowBaseData(void* jsDOMWindowBaseData) |
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172 { |
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173 delete static_cast<JSDOMWindowBaseData*>(jsDOMWindowBaseData); |
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174 } |
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175 |
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176 // JSDOMGlobalObject* is ignored, accessing a window in any context will |
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177 // use that DOMWindow's prototype chain. |
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178 JSValue toJS(ExecState* exec, JSDOMGlobalObject*, DOMWindow* domWindow) |
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179 { |
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180 return toJS(exec, domWindow); |
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181 } |
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182 |
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183 JSValue toJS(ExecState* exec, DOMWindow* domWindow) |
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184 { |
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185 if (!domWindow) |
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186 return jsNull(); |
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187 Frame* frame = domWindow->frame(); |
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188 if (!frame) |
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189 return jsNull(); |
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190 return frame->script()->windowShell(currentWorld(exec)); |
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191 } |
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192 |
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193 JSDOMWindow* toJSDOMWindow(Frame* frame, DOMWrapperWorld* world) |
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194 { |
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195 if (!frame) |
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196 return 0; |
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197 return frame->script()->windowShell(world)->window(); |
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198 } |
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199 |
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200 JSDOMWindow* toJSDOMWindow(JSValue value) |
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201 { |
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202 if (!value.isObject()) |
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203 return 0; |
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204 const ClassInfo* classInfo = asObject(value)->classInfo(); |
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205 if (classInfo == &JSDOMWindow::s_info) |
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206 return static_cast<JSDOMWindow*>(asObject(value)); |
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207 if (classInfo == &JSDOMWindowShell::s_info) |
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208 return static_cast<JSDOMWindowShell*>(asObject(value))->window(); |
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209 return 0; |
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210 } |
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211 |
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212 } // namespace WebCore |