Use "= default" to denote default constructor or destructor
[WebKit-https.git] / Source / WebCore / platform / PlatformSpeechSynthesizer.h
1 /*
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10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
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25
26 #ifndef PlatformSpeechSynthesizer_h
27 #define PlatformSpeechSynthesizer_h
28
29 #if ENABLE(SPEECH_SYNTHESIS)
30
31 #include "PlatformSpeechSynthesisVoice.h"
32 #include <wtf/Vector.h>
33
34 #if PLATFORM(COCOA)
35 #include <wtf/RetainPtr.h>
36 OBJC_CLASS WebSpeechSynthesisWrapper;
37 #endif
38
39 namespace WebCore {
40
41 enum SpeechBoundary {
42     SpeechWordBoundary,
43     SpeechSentenceBoundary
44 };
45
46 class PlatformSpeechSynthesisUtterance;
47
48 class PlatformSpeechSynthesizerClient {
49 public:
50     virtual void didStartSpeaking(PlatformSpeechSynthesisUtterance&) = 0;
51     virtual void didFinishSpeaking(PlatformSpeechSynthesisUtterance&) = 0;
52     virtual void didPauseSpeaking(PlatformSpeechSynthesisUtterance&) = 0;
53     virtual void didResumeSpeaking(PlatformSpeechSynthesisUtterance&) = 0;
54     virtual void speakingErrorOccurred(PlatformSpeechSynthesisUtterance&) = 0;
55     virtual void boundaryEventOccurred(PlatformSpeechSynthesisUtterance&, SpeechBoundary, unsigned charIndex) = 0;
56     virtual void voicesDidChange() = 0;
57 protected:
58     virtual ~PlatformSpeechSynthesizerClient() = default;
59 };
60
61 class WEBCORE_EXPORT PlatformSpeechSynthesizer {
62 public:
63     WEBCORE_EXPORT explicit PlatformSpeechSynthesizer(PlatformSpeechSynthesizerClient*);
64
65     // FIXME: We have multiple virtual functions just so we can support a mock for testing.
66     // Seems wasteful. Would be nice to find a better way.
67     WEBCORE_EXPORT virtual ~PlatformSpeechSynthesizer();
68
69     const Vector<RefPtr<PlatformSpeechSynthesisVoice>>& voiceList() const;
70     virtual void speak(RefPtr<PlatformSpeechSynthesisUtterance>&&);
71     virtual void pause();
72     virtual void resume();
73     virtual void cancel();
74
75     PlatformSpeechSynthesizerClient* client() const { return m_speechSynthesizerClient; }
76
77 protected:
78     Vector<RefPtr<PlatformSpeechSynthesisVoice>> m_voiceList;
79
80 private:
81     virtual void initializeVoiceList();
82
83     bool m_voiceListIsInitialized { false };
84     PlatformSpeechSynthesizerClient* m_speechSynthesizerClient;
85
86 #if PLATFORM(COCOA)
87     RetainPtr<WebSpeechSynthesisWrapper> m_platformSpeechWrapper;
88 #endif
89 };
90
91 } // namespace WebCore
92
93 #endif // ENABLE(SPEECH_SYNTHESIS)
94
95 #endif // PlatformSpeechSynthesizer_h