Mercurial > hg > orthanc-stone

annotate Applications/Platforms/WebAssembly/WebAssemblyViewport.cpp @ 1623:74be0f498b08

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Updated mechanism to avoid using deleted objects in RequestAnimationFrame callbacks.
author Benjamin Golinvaux <bgo@osimis.io>
date Wed, 04 Nov 2020 11:39:15 +0100
parents 575f512cdf48
children 2e3b2ed239b9
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #if defined(ORTHANC_BUILDING_STONE_LIBRARY) && ORTHANC_BUILDING_STONE_LIBRARY == 1
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23 # include "WebAssemblyViewport.h"
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24 # include "../../../OrthancStone/Sources/Scene2DViewport/ViewportController.h"
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25 # include "../../../OrthancStone/Sources/Toolbox/GenericToolbox.h"
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26 # include "../../../OrthancStone/Sources/Viewport/DefaultViewportInteractor.h"
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27 #else
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28 // This is the case when using the WebAssembly side module, and this
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29 // source file must be compiled within the WebAssembly main module
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30 # include <Viewport/WebAssemblyViewport.h>
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31 # include <Toolbox/GenericToolbox.h>
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32 # include <Scene2DViewport/ViewportController.h>
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33 # include <Viewport/DefaultViewportInteractor.h>
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34 #endif
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35
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36
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37 #include <OrthancException.h>
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38
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39 #include <boost/make_shared.hpp>
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40 #include <boost/enable_shared_from_this.hpp>
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41 #include <boost/math/special_functions/round.hpp>
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42
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43 namespace OrthancStone
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44 {
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45 static void ConvertMouseEvent(PointerEvent& target,
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46 const EmscriptenMouseEvent& source,
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47 const ICompositor& compositor)
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48 {
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49 int x = static_cast<int>(source.targetX);
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50 int y = static_cast<int>(source.targetY);
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51
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52 switch (source.button)
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53 {
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54 case 0:
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55 target.SetMouseButton(MouseButton_Left);
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56 break;
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57
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58 case 1:
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59 target.SetMouseButton(MouseButton_Middle);
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60 break;
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61
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62 case 2:
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63 target.SetMouseButton(MouseButton_Right);
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64 break;
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65
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66 default:
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67 target.SetMouseButton(MouseButton_None);
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68 break;
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69 }
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70
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71 target.AddPosition(compositor.GetPixelCenterCoordinates(x, y));
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72 target.SetAltModifier(source.altKey);
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73 target.SetControlModifier(source.ctrlKey);
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74 target.SetShiftModifier(source.shiftKey);
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75 }
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76
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77
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78 class WebAssemblyViewport::WasmLock : public ILock
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79 {
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80 private:
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81 WebAssemblyViewport& that_;
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82
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83 public:
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84 WasmLock(WebAssemblyViewport& that) :
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85 that_(that)
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86 {
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87 }
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88
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89 virtual bool HasCompositor() const ORTHANC_OVERRIDE
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90 {
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91 return that_.compositor_.get() != NULL;
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92 }
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93
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94 virtual ICompositor& GetCompositor() ORTHANC_OVERRIDE
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95 {
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96 if (that_.compositor_.get() == NULL)
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97 {
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98 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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99 }
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100 else
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101 {
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102 return *that_.compositor_;
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103 }
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104 }
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105
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106 virtual ViewportController& GetController() ORTHANC_OVERRIDE
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107 {
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108 assert(that_.controller_);
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109 return *that_.controller_;
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110 }
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111
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112 virtual void Invalidate() ORTHANC_OVERRIDE
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113 {
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114 that_.Invalidate();
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115 }
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116
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117 virtual void RefreshCanvasSize() ORTHANC_OVERRIDE
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118 {
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119 that_.RefreshCanvasSize();
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120 }
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121 };
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122
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123 EM_BOOL WebAssemblyViewport::OnRequestAnimationFrame(double time, void *userData)
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124 {
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125 LOG(TRACE) << __func__;
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126
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127 WebAssemblyViewport* that =
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128 WebAssemblyViewport::DereferenceObjectCookie(userData);
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129
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130 if (that != NULL)
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131 {
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132 if (that->compositor_.get() != NULL &&
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133 that->controller_ /* should always be true */)
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134 {
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135 that->Paint(*that->compositor_, *that->controller_);
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136 }
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137 }
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138 else
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139 {
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140 LOG(TRACE) << "WebAssemblyViewport::OnRequestAnimationFrame: the " <<
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141 "WebAssemblyViewport is deleted and Paint will not be called.";
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142 }
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143 WebAssemblyViewport::ReleaseObjectCookie(userData);
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144 LOG(TRACE) << "Exiting: " << __func__;
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145 return true;
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146 }
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147
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148 EM_BOOL WebAssemblyViewport::OnResize(int eventType, const EmscriptenUiEvent *uiEvent, void *userData)
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149 {
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150 LOG(TRACE) << __func__;
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151 WebAssemblyViewport* that = reinterpret_cast<WebAssemblyViewport*>(userData);
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152
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153 if (that->compositor_.get() != NULL)
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154 {
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155 that->RefreshCanvasSize();
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156 that->Invalidate();
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157 }
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158
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159 LOG(TRACE) << "Exiting: " << __func__;
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160 return true;
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161 }
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162
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163
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164 EM_BOOL WebAssemblyViewport::OnMouseDown(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData)
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165 {
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166 WebAssemblyViewport* that = reinterpret_cast<WebAssemblyViewport*>(userData);
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167
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168 LOG(TRACE) << "mouse down: " << that->GetCanvasCssSelector();
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169
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170 if (that->compositor_.get() != NULL &&
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171 that->interactor_.get() != NULL)
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172 {
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173 PointerEvent pointer;
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174 ConvertMouseEvent(pointer, *mouseEvent, *that->compositor_);
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175
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176 that->controller_->HandleMousePress(*that->interactor_, pointer,
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177 that->compositor_->GetCanvasWidth(),
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178 that->compositor_->GetCanvasHeight());
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179 that->Invalidate();
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180 }
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181
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182 LOG(TRACE) << "Exiting: " << __func__;
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183 return true;
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184 }
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185
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186
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187 EM_BOOL WebAssemblyViewport::OnMouseMove(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData)
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188 {
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189 WebAssemblyViewport* that = reinterpret_cast<WebAssemblyViewport*>(userData);
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190
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191 if (that->compositor_.get() != NULL &&
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192 that->controller_->HasActiveTracker())
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193 {
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194 PointerEvent pointer;
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195 ConvertMouseEvent(pointer, *mouseEvent, *that->compositor_);
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196 if (that->controller_->HandleMouseMove(pointer))
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197 {
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198 that->Invalidate();
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199 }
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200 }
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201
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202 LOG(TRACE) << "Exiting: " << __func__;
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203 return true;
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204 }
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205
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206 EM_BOOL WebAssemblyViewport::OnMouseUp(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData)
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207 {
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208 LOG(TRACE) << __func__;
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209 WebAssemblyViewport* that = reinterpret_cast<WebAssemblyViewport*>(userData);
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210
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211 if (that->compositor_.get() != NULL)
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212 {
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213 PointerEvent pointer;
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214 ConvertMouseEvent(pointer, *mouseEvent, *that->compositor_);
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215 that->controller_->HandleMouseRelease(pointer);
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216 that->Invalidate();
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217 }
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218
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219 LOG(TRACE) << "Exiting: " << __func__;
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220 return true;
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221 }
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222
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223 void* WebAssemblyViewport::CreateObjectCookie()
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224 {
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225 boost::weak_ptr<WebAssemblyViewport>* weakThisPtr =
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226 new boost::weak_ptr<WebAssemblyViewport>();
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227
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228 *weakThisPtr = shared_from_this();
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229
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230 void* cookie = reinterpret_cast<void*>(weakThisPtr);
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231
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232 LOG(TRACE) << "WebAssemblyViewport::CreateObjectCookie() => cookie = "
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233 << cookie << "\n";
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234
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235 return cookie;
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236 }
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237
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238 WebAssemblyViewport* WebAssemblyViewport::DereferenceObjectCookie(void* cookie)
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239 {
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240 LOG(TRACE) << "WebAssemblyViewport::DereferenceObjectCookie(cookie = "
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241 << cookie << ")\n";
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242
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243 boost::weak_ptr<WebAssemblyViewport>* weakThisPtr =
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244 reinterpret_cast<boost::weak_ptr<WebAssemblyViewport>*>(cookie);
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245
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246 boost::shared_ptr<WebAssemblyViewport> sharedThis = weakThisPtr->lock();
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247
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248 return sharedThis.get();
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249 }
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250
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251 void WebAssemblyViewport::ReleaseObjectCookie(void* cookie)
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252 {
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253 LOG(TRACE) << "WebAssemblyViewport::ReleaseObjectCookie(cookie = "
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254 << cookie << ")\n";
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255
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256 boost::weak_ptr<WebAssemblyViewport>* weakThisPtr =
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257 reinterpret_cast<boost::weak_ptr<WebAssemblyViewport>*>(cookie);
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258
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259 delete weakThisPtr;
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260 }
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261
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262 void WebAssemblyViewport::Invalidate()
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263 {
1623
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264 LOG(TRACE) << "WebAssemblyViewport::Invalidate()\n";
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Benjamin Golinvaux <bgo@osimis.io>
parents: 1591
diff changeset
265 long id = emscripten_request_animation_frame(OnRequestAnimationFrame,
1623
74be0f498b08 Updated mechanism to avoid using deleted objects in RequestAnimationFrame callbacks.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1621
diff changeset
266 CreateObjectCookie());
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parents: 1621
diff changeset
267 //animationFrameCallbackIds_.push_back(id);
1232
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diff changeset
268 }
942
685c9a2d115f Added missing ORTHANC_OVERRIDE + preparation for lost GL context handling + stubs for GL context event handlers
Benjamin Golinvaux <bgo@osimis.io>
parents: 910
diff changeset
269
1575
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diff changeset
270 void WebAssemblyViewport::FitForPrint()
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parents: 1566
diff changeset
271 {
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parents: 1566
diff changeset
272 if (compositor_.get() != NULL &&
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1566
diff changeset
273 controller_ /* should always be true */)
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parents: 1566
diff changeset
274 {
1576
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
275 RefreshCanvasSize();
1575
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diff changeset
276 compositor_->FitContent(controller_->GetScene());
1578
1f812f4c95be comments
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1577
diff changeset
277 OnRequestAnimationFrame(0, reinterpret_cast<void*>(this)); // Mandatory to work with Firefox
1575
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parents: 1566
diff changeset
278 }
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parents: 1566
diff changeset
279 }
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parents: 1566
diff changeset
280
1232
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diff changeset
281 void WebAssemblyViewport::AcquireCompositor(ICompositor* compositor /* takes ownership */)
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parents: 1054
diff changeset
282 {
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parents: 1054
diff changeset
283 if (compositor == NULL)
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parents: 910
diff changeset
284 {
1232
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diff changeset
285 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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Benjamin Golinvaux <bgo@osimis.io>
parents: 910
diff changeset
286 }
1232
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Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
287 else
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diff changeset
288 {
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Sebastien Jodogne <s.jodogne@gmail.com>
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289 compositor_.reset(compositor);
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diff changeset
290 }
942
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parents: 910
diff changeset
291 }
907
722ee73e6ba2 cleanup + started to implement WebAssemblyCairoViewport (wip)
Alain Mazy <alain@mazy.be>
parents: 891
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292
1356
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293 #if DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR == 1
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diff changeset
294 // everything OK..... we're using the new setting
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diff changeset
295 #else
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296 #pragma message("WARNING: DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR is not defined or equal to 0. Stone will use the OLD Emscripten rules for DOM element selection.")
d8bb885e9b0a Checking DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR
Benjamin Golinvaux <bgo@osimis.io>
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diff changeset
297 #endif
d8bb885e9b0a Checking DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR
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diff changeset
298
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Benjamin Golinvaux <bgo@osimis.io>
parents: 1315
diff changeset
299 WebAssemblyViewport::WebAssemblyViewport(
1346
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diff changeset
300 const std::string& canvasId, bool enableEmscriptenMouseEvents) :
1351
1b8e37770d78 ID vs CSS selector distinction in API and field names.
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diff changeset
301 canvasId_(canvasId),
1356
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diff changeset
302 #if DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR == 1
1351
1b8e37770d78 ID vs CSS selector distinction in API and field names.
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diff changeset
303 canvasCssSelector_("#" + canvasId),
1356
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parents: 1351
diff changeset
304 #else
d8bb885e9b0a Checking DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR
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parents: 1351
diff changeset
305 canvasCssSelector_(canvasId),
d8bb885e9b0a Checking DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR
Benjamin Golinvaux <bgo@osimis.io>
parents: 1351
diff changeset
306 #endif
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
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parents: 1328
diff changeset
307 interactor_(new DefaultViewportInteractor),
1576
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
308 enableEmscriptenMouseEvents_(enableEmscriptenMouseEvents),
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
309 canvasWidth_(0),
1623
74be0f498b08 Updated mechanism to avoid using deleted objects in RequestAnimationFrame callbacks.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1621
diff changeset
310 canvasHeight_(0)
1331
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diff changeset
311 {
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
312 }
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
313
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
314 void WebAssemblyViewport::PostConstructor()
907
722ee73e6ba2 cleanup + started to implement WebAssemblyCairoViewport (wip)
Alain Mazy <alain@mazy.be>
parents: 891
diff changeset
315 {
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
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parents: 1328
diff changeset
316 boost::shared_ptr<IViewport> viewport = shared_from_this();
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
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diff changeset
317 controller_.reset(new ViewportController(viewport));
1232
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diff changeset
318
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
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diff changeset
319 LOG(INFO) << "Initializing Stone viewport on HTML canvas: "
1480
4de884c95cd8 fix includes in WebAssemblyCairoViewport
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1455
diff changeset
320 << canvasId_;
907
722ee73e6ba2 cleanup + started to implement WebAssemblyCairoViewport (wip)
Alain Mazy <alain@mazy.be>
parents: 891
diff changeset
321
1351
1b8e37770d78 ID vs CSS selector distinction in API and field names.
Benjamin Golinvaux <bgo@osimis.io>
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diff changeset
322 if (canvasId_.empty() ||
1b8e37770d78 ID vs CSS selector distinction in API and field names.
Benjamin Golinvaux <bgo@osimis.io>
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diff changeset
323 canvasId_[0] == '#')
1232
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
324 {
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
325 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange,
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
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parents: 1328
diff changeset
326 "The canvas identifier must not start with '#'");
1232
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Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
327 }
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
328
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
329 // Disable right-click on the canvas (i.e. context menu)
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
330 EM_ASM({
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
331 document.getElementById(UTF8ToString($0)).oncontextmenu =
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
332 function(event)
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
333 {
1232
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
334 event.preventDefault();
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
335 }
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
336 },
1351
1b8e37770d78 ID vs CSS selector distinction in API and field names.
Benjamin Golinvaux <bgo@osimis.io>
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diff changeset
337 canvasId_.c_str() // $0
1232
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
338 );
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
339
1346
df8bf351c23f The flag that allows the WebAssemblyViewport to
Benjamin Golinvaux <bgo@osimis.io>
parents: 1331
diff changeset
340 // It is not possible to monitor the resizing of individual
df8bf351c23f The flag that allows the WebAssemblyViewport to
Benjamin Golinvaux <bgo@osimis.io>
parents: 1331
diff changeset
341 // canvas, so we track the full window of the browser
df8bf351c23f The flag that allows the WebAssemblyViewport to
Benjamin Golinvaux <bgo@osimis.io>
parents: 1331
diff changeset
342 emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW,
df8bf351c23f The flag that allows the WebAssemblyViewport to
Benjamin Golinvaux <bgo@osimis.io>
parents: 1331
diff changeset
343 reinterpret_cast<void*>(this),
df8bf351c23f The flag that allows the WebAssemblyViewport to
Benjamin Golinvaux <bgo@osimis.io>
parents: 1331
diff changeset
344 false,
df8bf351c23f The flag that allows the WebAssemblyViewport to
Benjamin Golinvaux <bgo@osimis.io>
parents: 1331
diff changeset
345 OnResize);
df8bf351c23f The flag that allows the WebAssemblyViewport to
Benjamin Golinvaux <bgo@osimis.io>
parents: 1331
diff changeset
346
df8bf351c23f The flag that allows the WebAssemblyViewport to
Benjamin Golinvaux <bgo@osimis.io>
parents: 1331
diff changeset
347 if (enableEmscriptenMouseEvents_)
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
348 {
1318
cbfdba08e039 removed SDL code in wasm + added undostack CTOR in Wasm viewport + build fix + ORTHANC_OVERRIDE
Benjamin Golinvaux <bgo@osimis.io>
parents: 1315
diff changeset
349
1351
1b8e37770d78 ID vs CSS selector distinction in API and field names.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1346
diff changeset
350 // if any of this function causes an error in the console, please
1b8e37770d78 ID vs CSS selector distinction in API and field names.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1346
diff changeset
351 // make sure you are using the new (as of 1.39.x) version of
1b8e37770d78 ID vs CSS selector distinction in API and field names.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1346
diff changeset
352 // emscripten element lookup rules( pass
1b8e37770d78 ID vs CSS selector distinction in API and field names.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1346
diff changeset
353 // "-s DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR=1" to the linker.
1b8e37770d78 ID vs CSS selector distinction in API and field names.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1346
diff changeset
354
1b8e37770d78 ID vs CSS selector distinction in API and field names.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1346
diff changeset
355 emscripten_set_mousedown_callback(canvasCssSelector_.c_str(),
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
356 reinterpret_cast<void*>(this),
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
357 false,
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
358 OnMouseDown);
1232
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
359
1351
1b8e37770d78 ID vs CSS selector distinction in API and field names.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1346
diff changeset
360 emscripten_set_mousemove_callback(canvasCssSelector_.c_str(),
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
361 reinterpret_cast<void*>(this),
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
362 false,
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
363 OnMouseMove);
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
364
1351
1b8e37770d78 ID vs CSS selector distinction in API and field names.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1346
diff changeset
365 emscripten_set_mouseup_callback(canvasCssSelector_.c_str(),
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
366 reinterpret_cast<void*>(this),
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
367 false,
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
368 OnMouseUp);
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
369 }
907
722ee73e6ba2 cleanup + started to implement WebAssemblyCairoViewport (wip)
Alain Mazy <alain@mazy.be>
parents: 891
diff changeset
370 }
722ee73e6ba2 cleanup + started to implement WebAssemblyCairoViewport (wip)
Alain Mazy <alain@mazy.be>
parents: 891
diff changeset
371
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
372 WebAssemblyViewport::~WebAssemblyViewport()
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
373 {
1623
74be0f498b08 Updated mechanism to avoid using deleted objects in RequestAnimationFrame callbacks.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1621
diff changeset
374 LOG(TRACE) << "WebAssemblyViewport::~WebAssemblyViewport()\n";
74be0f498b08 Updated mechanism to avoid using deleted objects in RequestAnimationFrame callbacks.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1621
diff changeset
375
1346
df8bf351c23f The flag that allows the WebAssemblyViewport to
Benjamin Golinvaux <bgo@osimis.io>
parents: 1331
diff changeset
376 emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW,
df8bf351c23f The flag that allows the WebAssemblyViewport to
Benjamin Golinvaux <bgo@osimis.io>
parents: 1331
diff changeset
377 reinterpret_cast<void*>(this),
df8bf351c23f The flag that allows the WebAssemblyViewport to
Benjamin Golinvaux <bgo@osimis.io>
parents: 1331
diff changeset
378 false,
df8bf351c23f The flag that allows the WebAssemblyViewport to
Benjamin Golinvaux <bgo@osimis.io>
parents: 1331
diff changeset
379 NULL);
df8bf351c23f The flag that allows the WebAssemblyViewport to
Benjamin Golinvaux <bgo@osimis.io>
parents: 1331
diff changeset
380
df8bf351c23f The flag that allows the WebAssemblyViewport to
Benjamin Golinvaux <bgo@osimis.io>
parents: 1331
diff changeset
381 if (enableEmscriptenMouseEvents_)
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
382 {
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
383
1351
1b8e37770d78 ID vs CSS selector distinction in API and field names.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1346
diff changeset
384 emscripten_set_mousedown_callback(canvasCssSelector_.c_str(),
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
385 reinterpret_cast<void*>(this),
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
386 false,
1480
4de884c95cd8 fix includes in WebAssemblyCairoViewport
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1455
diff changeset
387 NULL);
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
388
1351
1b8e37770d78 ID vs CSS selector distinction in API and field names.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1346
diff changeset
389 emscripten_set_mousemove_callback(canvasCssSelector_.c_str(),
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
390 reinterpret_cast<void*>(this),
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
391 false,
1480
4de884c95cd8 fix includes in WebAssemblyCairoViewport
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1455
diff changeset
392 NULL);
1331
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
393
1351
1b8e37770d78 ID vs CSS selector distinction in API and field names.
Benjamin Golinvaux <bgo@osimis.io>
parents: 1346
diff changeset
394 emscripten_set_mouseup_callback(canvasCssSelector_.c_str(),
1331
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Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
395 reinterpret_cast<void*>(this),
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
396 false,
1480
4de884c95cd8 fix includes in WebAssemblyCairoViewport
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1455
diff changeset
397 NULL);
1331
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Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
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398 }
ab81ee8fce1f - Viewport is not passed and stored as a shared_ptr instead
Benjamin Golinvaux <bgo@osimis.io>
parents: 1328
diff changeset
399 }
1232
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
400
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
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401 IViewport::ILock* WebAssemblyViewport::Lock()
910
a6c12fe88bcb wip: WebAssemblyCairoViewport: still need to implement blit to canvas
Alain Mazy <alain@mazy.be>
parents: 907
diff changeset
402 {
1232
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
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403 return new WasmLock(*this);
910
a6c12fe88bcb wip: WebAssemblyCairoViewport: still need to implement blit to canvas
Alain Mazy <alain@mazy.be>
parents: 907
diff changeset
404 }
1232
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
405
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
406 void WebAssemblyViewport::AcquireInteractor(IViewportInteractor* interactor)
910
a6c12fe88bcb wip: WebAssemblyCairoViewport: still need to implement blit to canvas
Alain Mazy <alain@mazy.be>
parents: 907
diff changeset
407 {
1232
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
408 if (interactor == NULL)
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
409 {
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
410 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
411 }
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
412 else
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
413 {
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
414 interactor_.reset(interactor);
a28861abf888 viewports for WebAssembly
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1054
diff changeset
415 }
910
a6c12fe88bcb wip: WebAssemblyCairoViewport: still need to implement blit to canvas
Alain Mazy <alain@mazy.be>
parents: 907
diff changeset
416 }
1576
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
417
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
418
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
419 void WebAssemblyViewport::RefreshCanvasSize()
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
420 {
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
421 double w, h;
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
422 emscripten_get_element_css_size(GetCanvasCssSelector().c_str(), &w, &h);
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
423
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
424 /**
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
425 * Emscripten has the function emscripten_get_element_css_size()
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
426 * to query the width and height of a named HTML element. I'm
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
427 * calling this first to get the initial size of the canvas DOM
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
428 * element, and then call emscripten_set_canvas_size() to
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
429 * initialize the framebuffer size of the canvas to the same
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
430 * size as its DOM element.
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
431 * https://floooh.github.io/2017/02/22/emsc-html.html
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
432 **/
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
433 if (w > 0 &&
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
434 h > 0)
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
435 {
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
436 canvasWidth_ = static_cast<unsigned int>(boost::math::iround(w));
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
437 canvasHeight_ = static_cast<unsigned int>(boost::math::iround(h));
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
438 }
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
439 else
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
440 {
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
441 canvasWidth_ = 0;
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
442 canvasHeight_ = 0;
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
443 }
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
444
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
445 emscripten_set_canvas_element_size(GetCanvasCssSelector().c_str(), canvasWidth_, canvasHeight_);
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
446
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
447 if (compositor_.get() != NULL)
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
448 {
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
449 compositor_->SetCanvasSize(canvasWidth_, canvasHeight_);
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
450 }
92fca2b3ba3d sanitizing the handling of canvas size
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1575
diff changeset
451 }
891
0aff28f15ea2 new abstraction: IViewport
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
452 }