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| 1 // Copyright 2011, Google Inc. | |
| 2 // All rights reserved. | |
| 3 // | |
| 4 // Redistribution and use in source and binary forms, with or without | |
| 5 // modification, are permitted provided that the following conditions are | |
| 6 // met: | |
| 7 // | |
| 8 // * Redistributions of source code must retain the above copyright | |
| 9 // notice, this list of conditions and the following disclaimer. | |
| 10 // * Redistributions in binary form must reproduce the above | |
| 11 // copyright notice, this list of conditions and the following disclaimer | |
| 12 // in the documentation and/or other materials provided with the | |
| 13 // distribution. | |
| 14 // * Neither the name of Google Inc. nor the names of its | |
| 15 // contributors may be used to endorse or promote products derived from | |
| 16 // this software without specific prior written permission. | |
| 17 // | |
| 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 | |
| 30 #ifndef DartController_h | |
| 31 #define DartController_h | |
| 32 | |
| 33 #include "DartApplicationLoader.h" | |
| 34 #include "ScriptSourceCode.h" | |
| 35 | |
| 36 #include <dart_api.h> | |
| 37 #include <wtf/HashMap.h> | |
| 38 #include <wtf/Vector.h> | |
| 39 #include <wtf/text/WTFString.h> | |
| 40 | |
| 41 struct NPObject; | |
| 42 | |
| 43 namespace WebCore { | |
| 44 | |
| 45 class DOMWindow; | |
| 46 class Frame; | |
| 47 class ScriptExecutionContext; | |
| 48 | |
| 49 // VM state per single Dart <SCRIPT> tag. | |
| 50 class DartPerScriptState { | |
| 51 public: | |
| 52 PassRefPtr<DartApplicationLoader> dartApplicationLoader() { return m_dartApp
licationLoader; } | |
| 53 Dart_Isolate isolate() { return m_isolate; } | |
| 54 | |
| 55 DartPerScriptState(Document*, PassRefPtr<DartApplicationLoader>); | |
| 56 ~DartPerScriptState(); | |
| 57 | |
| 58 private: | |
| 59 RefPtr<DartApplicationLoader> m_dartApplicationLoader; | |
| 60 Dart_Isolate m_isolate; | |
| 61 }; | |
| 62 | |
| 63 // This class provides the linkage between a Frame and its attached | |
| 64 // Dart isolates. It is similar to ScriptController for JavaScript. | |
| 65 // The DartController is owned by its Frame. | |
| 66 class DartController { | |
| 67 public: | |
| 68 DartController(Frame*); | |
| 69 virtual ~DartController() {} | |
| 70 | |
| 71 void evaluate(const ScriptSourceCode&); | |
| 72 | |
| 73 // Exposes NPObject instance to Dart environment. | |
| 74 void bindToWindowObject(Frame*, const String& key, NPObject*); | |
| 75 NPObject* npObject(const String& key); | |
| 76 | |
| 77 void clearWindowShell(); | |
| 78 | |
| 79 Dart_Handle callFunction(Dart_Handle function, int argc, Dart_Handle* argv); | |
| 80 | |
| 81 Frame* frame() const { return m_frame; } | |
| 82 | |
| 83 Dart_Handle spawnDomIsolate(DOMWindow* targetWindow, const String& entryPoin
t); | |
| 84 | |
| 85 static DartController* retrieve(Frame*); | |
| 86 static DartController* retrieve(ScriptExecutionContext*); | |
| 87 | |
| 88 static void setDartVMFlags(const String&); | |
| 89 | |
| 90 static void setupDOMEnabledIsolate(ScriptExecutionContext*); | |
| 91 | |
| 92 private: | |
| 93 static void initVMIfNeeded(); | |
| 94 static bool createPureIsolateCallback(void*, char** errorMsg); | |
| 95 | |
| 96 bool isDartMimeType(const String& mimeType); | |
| 97 void loadScripts(); | |
| 98 | |
| 99 void didLeaveScriptContext(int recursion); | |
| 100 | |
| 101 // The frame that owns this controller. | |
| 102 Frame* m_frame; | |
| 103 | |
| 104 bool m_scriptsLoaded; | |
| 105 | |
| 106 typedef Vector< OwnPtr<DartPerScriptState> > DartScriptsList; | |
| 107 // Dart VM states associated with scripts in this document. | |
| 108 DartScriptsList m_states; | |
| 109 | |
| 110 typedef HashMap<String, NPObject*> NPObjectMap; | |
| 111 NPObjectMap m_npObjectMap; | |
| 112 | |
| 113 friend class DartScriptRunner; | |
| 114 }; | |
| 115 | |
| 116 } | |
| 117 | |
| 118 #endif // DartController_h | |
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