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1 /* |
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2 * Copyright 2010, The Android Open Source Project |
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3 * |
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4 * Redistribution and use in source and binary forms, with or without |
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5 * modification, are permitted provided that the following conditions |
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6 * are met: |
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7 * * Redistributions of source code must retain the above copyright |
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8 * notice, this list of conditions and the following disclaimer. |
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9 * * Redistributions in binary form must reproduce the above copyright |
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10 * notice, this list of conditions and the following disclaimer in the |
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11 * documentation and/or other materials provided with the distribution. |
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12 * |
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13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY |
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14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
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21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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24 */ |
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25 |
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26 #include "config.h" |
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27 #include "ScriptCachedFrameData.h" |
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28 |
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29 #include "Frame.h" |
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30 #include "ScriptController.h" |
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31 #include "V8DOMWindow.h" |
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32 |
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33 namespace WebCore { |
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34 |
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35 ScriptCachedFrameData::ScriptCachedFrameData(Frame* frame) |
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36 : m_domWindow(0) |
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37 { |
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38 v8::HandleScope handleScope; |
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39 // The context can only be the context of the main world. |
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40 ASSERT(V8Proxy::mainWorldContext(frame) == V8Proxy::context(frame)); |
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41 m_context.set(V8Proxy::mainWorldContext(frame)); |
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42 // The context can be 0, e.g. if JS is disabled in the browser. |
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43 if (m_context.get().IsEmpty()) |
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44 return; |
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45 m_global.set(m_context.get()->Global()); |
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46 m_domWindow = frame->domWindow(); |
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47 } |
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48 |
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49 DOMWindow* ScriptCachedFrameData::domWindow() const |
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50 { |
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51 return m_domWindow; |
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52 } |
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53 |
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54 void ScriptCachedFrameData::restore(Frame* frame) |
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55 { |
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56 if (m_context.get().IsEmpty()) |
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57 return; |
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58 |
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59 v8::HandleScope handleScope; |
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60 v8::Context::Scope contextScope(m_context.get()); |
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61 |
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62 m_context.get()->ReattachGlobal(m_global.get()); |
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63 V8Proxy* proxy = V8Proxy::retrieve(frame); |
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64 if (proxy) |
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65 proxy->windowShell()->setContext(m_context.get()); |
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66 } |
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67 |
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68 void ScriptCachedFrameData::clear() |
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69 { |
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70 m_context.clear(); |
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71 m_global.clear(); |
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72 } |
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73 |
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74 } // namespace WebCore |