Mercurial > hg > orthanc-stone
annotate Platforms/Wasm/Defaults.h @ 385:6cc3ce74dc05
using message broker in widgets
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 07 Nov 2018 20:49:41 +0100 |
parents | be2660b6e40a |
children | 3e6e10a5a6c8 |
rev | line source |
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222 | 1 #pragma once |
2 | |
223 | 3 #include <emscripten/emscripten.h> |
4 | |
222 | 5 #include <Framework/dev.h> |
6 #include <Framework/Viewport/WidgetViewport.h> | |
7 #include <Framework/Widgets/LayerWidget.h> | |
8 #include <Framework/Widgets/LayoutWidget.h> | |
288 | 9 #include <Applications/IStoneApplication.h> |
307 | 10 #include <Platforms/Wasm/WasmPlatformApplicationAdapter.h> |
222 | 11 |
233 | 12 typedef OrthancStone::WidgetViewport* ViewportHandle; // the objects exchanged between JS and C++ |
227 | 13 |
222 | 14 #ifdef __cplusplus |
15 extern "C" { | |
16 #endif | |
17 | |
223 | 18 // JS methods accessible from C++ |
229 | 19 extern void ScheduleWebViewportRedrawFromCpp(ViewportHandle cppViewportHandle); |
287 | 20 extern void UpdateStoneApplicationStatusFromCpp(const char* statusUpdateMessage); |
222 | 21 |
223 | 22 // C++ methods accessible from JS |
229 | 23 extern void EMSCRIPTEN_KEEPALIVE CreateWasmApplication(ViewportHandle cppViewportHandle); |
254 | 24 extern void EMSCRIPTEN_KEEPALIVE SetStartupParameter(const char* keyc, const char* value); |
25 | |
223 | 26 |
222 | 27 #ifdef __cplusplus |
28 } | |
29 #endif | |
30 | |
307 | 31 // these methods must be implemented in the custom app "mainWasm.cpp" |
288 | 32 extern OrthancStone::IStoneApplication* CreateUserApplication(OrthancStone::MessageBroker& broker); |
307 | 33 extern OrthancStone::WasmPlatformApplicationAdapter* CreateWasmApplicationAdapter(OrthancStone::MessageBroker& broker, OrthancStone::IStoneApplication* application); |
222 | 34 |
35 namespace OrthancStone { | |
36 | |
287 | 37 // default Observer to trigger Viewport redraw when something changes in the Viewport |
385
6cc3ce74dc05
using message broker in widgets
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
307
diff
changeset
|
38 class ViewportContentChangedObserver : public IObserver |
222 | 39 { |
40 private: | |
41 // Flag to avoid flooding JavaScript with redundant Redraw requests | |
42 bool isScheduled_; | |
43 | |
44 public: | |
385
6cc3ce74dc05
using message broker in widgets
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
307
diff
changeset
|
45 ViewportContentChangedObserver(MessageBroker& broker) : |
6cc3ce74dc05
using message broker in widgets
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
307
diff
changeset
|
46 IObserver(broker), |
222 | 47 isScheduled_(false) |
48 { | |
49 } | |
50 | |
51 void Reset() | |
52 { | |
53 isScheduled_ = false; | |
54 } | |
55 | |
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using message broker in widgets
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
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56 void OnViewportChanged(const IViewport::ViewportChangedMessage& message) |
222 | 57 { |
58 if (!isScheduled_) | |
59 { | |
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using message broker in widgets
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
307
diff
changeset
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60 ScheduleWebViewportRedrawFromCpp((ViewportHandle)&message.GetOrigin()); // loosing constness when transmitted to Web |
222 | 61 isScheduled_ = true; |
62 } | |
63 } | |
64 }; | |
65 | |
223 | 66 // default status bar to log messages on the console/stdout |
222 | 67 class StatusBar : public OrthancStone::IStatusBar |
68 { | |
69 public: | |
70 virtual void ClearMessage() | |
71 { | |
72 } | |
73 | |
74 virtual void SetMessage(const std::string& message) | |
75 { | |
76 printf("%s\n", message.c_str()); | |
77 } | |
78 }; | |
385
6cc3ce74dc05
using message broker in widgets
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
307
diff
changeset
|
79 } |