Mercurial > projects > dwt-linux
annotate dwt/browser/MozillaDelegate.d @ 354:59b54fea05d0
Fixes for XPCOM 1.9 and anonymous classes
author | john@andLinux |
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date | Sun, 14 Dec 2008 02:13:20 -0500 |
parents | 373b48b9eaf0 |
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rev | line source |
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1 /******************************************************************************* |
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2 * Copyright (c) 2003, 2007 IBM Corporation and others. |
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3 * All rights reserved. This program and the accompanying materials |
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4 * are made available under the terms of the Eclipse Public License v1.0 |
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5 * which accompanies this distribution, and is available at |
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6 * http://www.eclipse.org/legal/epl-v10.html |
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7 * |
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8 * Contributors: |
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9 * IBM Corporation - initial API and implementation |
286 | 10 * Port to the D programming language: |
11 * John Reimer <terminal.node@gmail.com> | |
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12 *******************************************************************************/ |
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13 module dwt.browser.MozillaDelegate; |
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14 |
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15 import dwt.dwthelper.utils; |
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16 |
354 | 17 import tango.io.Console; |
18 | |
278
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19 import dwt.DWT; |
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20 import dwt.internal.Converter; |
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21 import dwt.internal.gtk.OS; |
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22 import dwt.widgets.Display; |
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23 import dwt.widgets.Event; |
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24 import dwt.widgets.Listener; |
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25 import dwt.widgets.Widget; |
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26 |
340 | 27 import dwt.browser.Browser; |
345 | 28 import dwt.browser.Mozilla; |
340 | 29 |
30 import dwt.internal.c.glib_object; | |
31 | |
278
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32 class MozillaDelegate { |
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33 Browser browser; |
286 | 34 gpointer mozillaHandle; |
35 GtkWidget* embedHandle; | |
278
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36 bool hasFocus; |
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37 Listener listener; |
286 | 38 //static Callback eventCallback; |
39 // static int /*long*/ eventProc; | |
40 static const gpointer STOP_PROPOGATE = cast(gpointer)1; | |
278
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41 static bool IsLinux; |
350
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42 |
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43 static this () { |
354 | 44 String osName = System.getProperty ("os.name").toLowerCase(); //$NON-NLS-1$ |
45 IsLinux = osName.startsWith("linux"); //$NON-NLS-1$ | |
350
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46 } |
278
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47 |
286 | 48 this (Browser browser) { |
345 | 49 //super (); |
278
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50 if (!IsLinux) { |
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51 browser.dispose (); |
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52 DWT.error (DWT.ERROR_NO_HANDLES, null, " [Unsupported platform]"); //$NON-NLS-1$ |
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53 } |
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54 this.browser = browser; |
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55 } |
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56 |
350
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57 static extern(System) int eventProc (GtkWidget* handle, GdkEvent* gdkEvent, gpointer pointer) { |
286 | 58 GtkWidget* parent = OS.gtk_widget_get_parent (handle); |
278
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59 parent = OS.gtk_widget_get_parent (parent); |
286 | 60 if (parent is null) return 0; |
278
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61 Widget widget = Display.getCurrent ().findWidget (parent); |
340 | 62 if (widget !is null && (cast(Browser)widget) !is null) { |
286 | 63 return (cast(Mozilla)(cast(Browser)widget).webBrowser).mozDelegate.gtk_event (handle, gdkEvent, pointer); |
278
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64 } |
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65 return 0; |
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66 } |
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67 |
286 | 68 static Browser findBrowser (GtkWidget* handle) { |
278
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69 /* |
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70 * Note. On GTK, Mozilla is embedded into a GtkHBox handle |
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71 * and not directly into the parent Composite handle. |
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72 */ |
286 | 73 GtkWidget* parent = OS.gtk_widget_get_parent (handle); |
278
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74 Display display = Display.getCurrent (); |
286 | 75 return cast(Browser)display.findWidget (parent); |
278
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76 } |
286 | 77 /* |
278
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78 static char[] mbcsToWcs (String codePage, byte [] buffer) { |
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79 return Converter.mbcsToWcs (codePage, buffer); |
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80 } |
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81 |
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82 static byte[] wcsToMbcs (String codePage, String string, bool terminate) { |
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83 return Converter.wcsToMbcs (codePage, string, terminate); |
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84 } |
286 | 85 */ |
86 GtkWidget* getHandle () { | |
278
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87 /* |
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88 * Bug in Mozilla Linux GTK. Embedding Mozilla into a GtkFixed |
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89 * handle causes problems with some Mozilla plug-ins. For some |
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90 * reason, the Flash plug-in causes the child of the GtkFixed |
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91 * handle to be resized to 1 when the Flash document is loaded. |
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92 * That could be due to gtk_container_resize_children being called |
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93 * by Mozilla - or one of its plug-ins - on the GtkFixed handle, |
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94 * causing the child of the GtkFixed handle to be resized to 1. |
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95 * The workaround is to embed Mozilla into a GtkHBox handle. |
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96 */ |
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97 embedHandle = OS.gtk_hbox_new (false, 0); |
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98 OS.gtk_container_add (browser.handle, embedHandle); |
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99 OS.gtk_widget_show (embedHandle); |
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100 return embedHandle; |
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101 } |
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102 |
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103 String getLibraryName () { |
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104 return "libxpcom.so"; //$NON-NLS-1$ |
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105 } |
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106 |
286 | 107 /* |
278
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108 String getSWTInitLibraryName () { |
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109 return "swt-xpcominit"; //$NON-NLS-1$ |
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110 } |
286 | 111 */ |
278
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112 |
286 | 113 int gtk_event (GtkWidget* handle, GdkEvent* event, gpointer pointer) { |
278
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114 if (event.type is OS.GDK_BUTTON_PRESS) { |
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115 if (!hasFocus) browser.setFocus (); |
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116 } |
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117 |
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118 /* |
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119 * Stop the propagation of events that are not consumed by Mozilla, before |
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120 * they reach the parent embedder. These event have already been received. |
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121 */ |
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122 if (pointer is STOP_PROPOGATE) return 1; |
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123 return 0; |
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124 } |
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125 |
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126 void handleFocus () { |
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127 if (hasFocus) return; |
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128 hasFocus = true; |
340 | 129 listener = new class() Listener { |
278
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130 public void handleEvent (Event event) { |
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131 if (event.widget is browser) return; |
286 | 132 (cast(Mozilla)(browser.webBrowser)).Deactivate (); |
278
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133 hasFocus = false; |
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134 browser.getDisplay ().removeFilter (DWT.FocusIn, this); |
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135 browser.getShell ().removeListener (DWT.Deactivate, this); |
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136 listener = null; |
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137 } |
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138 }; |
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139 browser.getDisplay ().addFilter (DWT.FocusIn, listener); |
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140 browser.getShell ().addListener (DWT.Deactivate, listener); |
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141 } |
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142 |
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143 void handleMouseDown () { |
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144 int shellStyle = browser.getShell ().getStyle (); |
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145 if ((shellStyle & DWT.ON_TOP) !is 0 && (((shellStyle & DWT.NO_FOCUS) is 0) || ((browser.getStyle () & DWT.NO_FOCUS) is 0))) { |
340 | 146 browser.getDisplay ().asyncExec (new class() Runnable { |
278
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147 public void run () { |
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148 if (browser is null || browser.isDisposed ()) return; |
286 | 149 (cast(Mozilla)(browser.webBrowser)).Activate (); |
278
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150 } |
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151 }); |
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152 } |
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153 } |
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154 |
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155 bool hookEnterExit () { |
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156 return false; |
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157 } |
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158 |
286 | 159 void init () { /* |
278
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160 if (eventCallback is null) { |
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161 eventCallback = new Callback (getClass (), "eventProc", 3); //$NON-NLS-1$ |
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162 eventProc = eventCallback.getAddress (); |
286 | 163 if (eventProc is null) { |
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164 browser.dispose (); |
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165 Mozilla.error (DWT.ERROR_NO_MORE_CALLBACKS); |
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166 } |
286 | 167 } */ |
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168 |
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169 /* |
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170 * Feature in Mozilla. GtkEvents such as key down, key pressed may be consumed |
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171 * by Mozilla and never be received by the parent embedder. The workaround |
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172 * is to find the top Mozilla gtk widget that receives all the Mozilla GtkEvents, |
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173 * i.e. the first child of the parent embedder. Then hook event callbacks and |
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174 * forward the event to the parent embedder before Mozilla received and consumed |
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175 * them. |
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176 */ |
286 | 177 GList* list = OS.gtk_container_get_children (embedHandle); |
178 if (list !is null) { | |
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179 mozillaHandle = OS.g_list_data (list); |
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180 OS.g_list_free (list); |
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181 |
286 | 182 if (mozillaHandle !is null) { |
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183 /* Note. Callback to get events before Mozilla receives and consumes them. */ |
345 | 184 OS.g_signal_connect (mozillaHandle, OS.event.toStringz(), cast(GCallback)&eventProc, null); |
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185 |
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186 /* |
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187 * Note. Callback to get the events not consumed by Mozilla - and to block |
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188 * them so that they don't get propagated to the parent handle twice. |
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189 * This hook is set after Mozilla and is therefore called after Mozilla's |
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190 * handler because GTK dispatches events in their order of registration. |
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191 */ |
345 | 192 OS.g_signal_connect (mozillaHandle, OS.key_press_event.toStringz(), cast(GCallback)&eventProc, STOP_PROPOGATE); |
193 OS.g_signal_connect (mozillaHandle, OS.key_release_event.toStringz(), cast(GCallback)&eventProc, STOP_PROPOGATE); | |
194 OS.g_signal_connect (mozillaHandle, OS.button_press_event.toStringz(), cast(GCallback)&eventProc, STOP_PROPOGATE); | |
278
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195 } |
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196 } |
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197 } |
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198 |
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199 bool needsSpinup () { |
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200 return true; |
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201 } |
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202 |
341
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203 void onDispose (GtkWidget* embedHandle) { |
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204 if (listener !is null) { |
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205 browser.getDisplay ().removeFilter (DWT.FocusIn, listener); |
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206 browser.getShell ().removeListener (DWT.Deactivate, listener); |
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207 listener = null; |
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208 } |
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209 browser = null; |
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210 } |
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211 |
286 | 212 void setSize (GtkWidget* embedHandle, int width, int height) { |
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213 OS.gtk_widget_set_size_request (embedHandle, width, height); |
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214 } |
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215 |
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216 } |