summaryrefslogtreecommitdiffstats
path: root/dom/xbl/nsXBLProtoImplMethod.h
blob: d048239ab008af951401ec79f38e6b58851648c8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsXBLProtoImplMethod_h__
#define nsXBLProtoImplMethod_h__

#include "mozilla/Attributes.h"
#include "nsIAtom.h"
#include "nsString.h"
#include "nsString.h"
#include "nsXBLMaybeCompiled.h"
#include "nsXBLProtoImplMember.h"
#include "nsXBLSerialize.h"

class nsIContent;

struct nsXBLParameter {
  nsXBLParameter* mNext;
  char* mName;

  explicit nsXBLParameter(const nsAString& aName) {
    MOZ_COUNT_CTOR(nsXBLParameter);
    mName = ToNewCString(aName);
    mNext = nullptr;
  }

  ~nsXBLParameter() {
    MOZ_COUNT_DTOR(nsXBLParameter);
    free(mName);
    NS_CONTENT_DELETE_LIST_MEMBER(nsXBLParameter, this, mNext);
  }
};

struct nsXBLUncompiledMethod {
  nsXBLParameter* mParameters;
  nsXBLParameter* mLastParameter;
  nsXBLTextWithLineNumber mBodyText;

  nsXBLUncompiledMethod() :
    mParameters(nullptr),
    mLastParameter(nullptr),
    mBodyText()
  {
    MOZ_COUNT_CTOR(nsXBLUncompiledMethod);
  }

  ~nsXBLUncompiledMethod() {
    MOZ_COUNT_DTOR(nsXBLUncompiledMethod);
    delete mParameters;
  }

  int32_t GetParameterCount() {
    int32_t result = 0;
    for (nsXBLParameter* curr = mParameters; curr; curr=curr->mNext)
      result++;
    return result;
  }

  void AppendBodyText(const nsAString& aText) {
    mBodyText.AppendText(aText);
  }

  void AddParameter(const nsAString& aText) {
    nsXBLParameter* param = new nsXBLParameter(aText);
    if (!mParameters)
      mParameters = param;
    else
      mLastParameter->mNext = param;
    mLastParameter = param;
  }

  void SetLineNumber(uint32_t aLineNumber) {
    mBodyText.SetLineNumber(aLineNumber);
  }
};

class nsXBLProtoImplMethod: public nsXBLProtoImplMember
{
public:
  explicit nsXBLProtoImplMethod(const char16_t* aName);
  virtual ~nsXBLProtoImplMethod();

  void AppendBodyText(const nsAString& aBody);
  void AddParameter(const nsAString& aName);

  void SetLineNumber(uint32_t aLineNumber);

  virtual nsresult InstallMember(JSContext* aCx,
                                 JS::Handle<JSObject*> aTargetClassObject) override;
  virtual nsresult CompileMember(mozilla::dom::AutoJSAPI& jsapi, const nsString& aClassStr,
                                 JS::Handle<JSObject*> aClassObject) override;

  virtual void Trace(const TraceCallbacks& aCallbacks, void *aClosure) override;

  nsresult Read(nsIObjectInputStream* aStream);
  virtual nsresult Write(nsIObjectOutputStream* aStream) override;

  bool IsCompiled() const
  {
    return mMethod.IsCompiled();
  }

  void SetUncompiledMethod(nsXBLUncompiledMethod* aUncompiledMethod)
  {
    mMethod.SetUncompiled(aUncompiledMethod);
  }

  nsXBLUncompiledMethod* GetUncompiledMethod() const
  {
    return mMethod.GetUncompiled();
  }

protected:
  void SetCompiledMethod(JSObject* aCompiledMethod)
  {
    mMethod.SetJSFunction(aCompiledMethod);
  }

  JSObject* GetCompiledMethod() const
  {
    return mMethod.GetJSFunction();
  }

  JSObject* GetCompiledMethodPreserveColor() const
  {
    return mMethod.GetJSFunctionPreserveColor();
  }

  JS::Heap<nsXBLMaybeCompiled<nsXBLUncompiledMethod> > mMethod;
};

class nsXBLProtoImplAnonymousMethod : public nsXBLProtoImplMethod {
public:
  explicit nsXBLProtoImplAnonymousMethod(const char16_t* aName) :
    nsXBLProtoImplMethod(aName)
  {}

  nsresult Execute(nsIContent* aBoundElement, JSAddonId* aAddonId);

  // Override InstallMember; these methods never get installed as members on
  // binding instantiations (though they may hang out in mMembers on the
  // prototype implementation).
  virtual nsresult InstallMember(JSContext* aCx,
                                 JS::Handle<JSObject*> aTargetClassObject) override {
    return NS_OK;
  }

  using nsXBLProtoImplMethod::Write;
  nsresult Write(nsIObjectOutputStream* aStream,
                 XBLBindingSerializeDetails aType);
};

#endif // nsXBLProtoImplMethod_h__