1 | /* |
2 | * Copyright (C) 2010 Google, Inc. 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 |
6 | * are met: |
7 | * 1. Redistributions of source code must retain the above copyright |
8 | * notice, this list of conditions and the following disclaimer. |
9 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #pragma once |
27 | |
28 | #include "LoadableScript.h" |
29 | #include "LoadableScriptClient.h" |
30 | #include <wtf/Ref.h> |
31 | #include <wtf/RefCounted.h> |
32 | #include <wtf/text/TextPosition.h> |
33 | |
34 | namespace WebCore { |
35 | |
36 | class CachedScript; |
37 | class PendingScriptClient; |
38 | class ScriptElement; |
39 | |
40 | // A container for scripts which may be loaded and executed. |
41 | // This can hold LoadableScript and non external inline script. |
42 | class PendingScript final : public RefCounted<PendingScript>, public LoadableScriptClient { |
43 | public: |
44 | static Ref<PendingScript> create(ScriptElement&, LoadableScript&); |
45 | static Ref<PendingScript> create(ScriptElement&, TextPosition scriptStartPosition); |
46 | |
47 | virtual ~PendingScript(); |
48 | |
49 | TextPosition startingPosition() const { return m_startingPosition; } |
50 | void setStartingPosition(const TextPosition& position) { m_startingPosition = position; } |
51 | |
52 | bool watchingForLoad() const { return needsLoading() && m_client; } |
53 | |
54 | ScriptElement& element() { return m_element.get(); } |
55 | const ScriptElement& element() const { return m_element.get(); } |
56 | |
57 | LoadableScript* loadableScript() const; |
58 | bool needsLoading() const { return loadableScript(); } |
59 | |
60 | bool isLoaded() const; |
61 | bool error() const; |
62 | |
63 | void notifyFinished(LoadableScript&) override; |
64 | |
65 | void setClient(PendingScriptClient&); |
66 | void clearClient(); |
67 | |
68 | private: |
69 | PendingScript(ScriptElement&, LoadableScript&); |
70 | PendingScript(ScriptElement&, TextPosition startingPosition); |
71 | |
72 | void notifyClientFinished(); |
73 | |
74 | Ref<ScriptElement> m_element; |
75 | TextPosition m_startingPosition; // Only used for inline script tags. |
76 | RefPtr<LoadableScript> m_loadableScript; |
77 | PendingScriptClient* m_client { nullptr }; |
78 | }; |
79 | |
80 | inline LoadableScript* PendingScript::loadableScript() const |
81 | { |
82 | return m_loadableScript.get(); |
83 | } |
84 | |
85 | } |
86 | |