root/trunk/src/gio/AsyncResultT.d

Revision 938, 4.5 kB (checked in by Mike Wey, 3 months ago)

Update Gio to 2.28.

Line 
1 /*
2  * This file is part of gtkD.
3  *
4  * gtkD is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU Lesser General Public License
6  * as published by the Free Software Foundation; either version 3
7  * of the License, or (at your option) any later version, with
8  * some exceptions, please read the COPYING file.
9  *
10  * gtkD is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public License
16  * along with gtkD; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
18  */
19  
20 // generated automatically - do not change
21 // find conversion definition on APILookup.txt
22 // implement new conversion functionalities on the wrap.utils pakage
23
24 /*
25  * Conversion parameters:
26  * inFile  = GAsyncResult.html
27  * outPack = gio
28  * outFile = AsyncResultT
29  * strct   = GAsyncResult
30  * realStrct=
31  * ctorStrct=
32  * clss    = AsyncResultT
33  * interf  = AsyncResultIF
34  * class Code: No
35  * interface Code: No
36  * template for:
37  *  - TStruct
38  * extend  =
39  * implements:
40  * prefixes:
41  *  - g_async_result_
42  * omit structs:
43  * omit prefixes:
44  * omit code:
45  * omit signals:
46  * imports:
47  *  - gobject.ObjectG
48  * structWrap:
49  *  - GObject* -> ObjectG
50  * module aliases:
51  * local aliases:
52  * overrides:
53  */
54
55 module gio.AsyncResultT;
56
57 public  import gtkc.giotypes;
58
59 public import gtkc.gio;
60 public import glib.ConstructionException;
61
62
63 public import gobject.ObjectG;
64
65
66
67
68 /**
69  * Description
70  * Provides a base class for implementing asynchronous function results.
71  * Asynchronous operations are broken up into two separate operations
72  * which are chained together by a GAsyncReadyCallback. To begin
73  * an asynchronous operation, provide a GAsyncReadyCallback to the
74  * asynchronous function. This callback will be triggered when the
75  * operation has completed, and will be passed a GAsyncResult instance
76  * filled with the details of the operation's success or failure, the
77  * object the asynchronous function was started for and any error codes
78  * returned. The asynchronous callback function is then expected to call
79  * the corresponding "_finish()" function, passing the object the
80  * function was called for, the GAsyncResult instance, and (optionally)
81  * an error to grab any error conditions that may have occurred.
82  * The "_finish()" function for an operation takes the generic result
83  * (of type GAsyncResult) and returns the specific result that the
84  * operation in question yields (e.g. a GFileEnumerator for a
85  * "enumerate children" operation). If the result or error status of the
86  * operation is not needed, there is no need to call the "_finish()"
87  * function; GIO will take care of cleaning up the result and error
88  * information after the GAsyncReadyCallback returns. Applications may
89  * also take a reference to the GAsyncResult and call "_finish()"
90  * later; however, the "_finish()" function may be called at most once.
91  * Example of a typical asynchronous operation flow:
92  * $(DDOC_COMMENT example)
93  * The callback for an asynchronous operation is called only once, and is
94  * always called, even in the case of a cancelled operation. On cancellation
95  * the result is a G_IO_ERROR_CANCELLED error.
96  * Some asynchronous operations are implemented using synchronous calls.
97  * These are run in a separate thread, if GThread has been initialized, but
98  * otherwise they are sent to the Main Event Loop and processed in an idle
99  * function. So, if you truly need asynchronous operations, make sure to
100  * initialize GThread.
101  */
102 public template AsyncResultT(TStruct)
103 {
104    
105     /** the main Gtk struct */
106     protected GAsyncResult* gAsyncResult;
107    
108    
109     public GAsyncResult* getAsyncResultTStruct()
110     {
111         return cast(GAsyncResult*)getStruct();
112     }
113    
114    
115     /**
116      */
117    
118     /**
119      * Gets the user data from a GAsyncResult.
120      * Returns: the user data for res. [transfer full]
121      */
122     public void* getUserData()
123     {
124         // gpointer g_async_result_get_user_data (GAsyncResult *res);
125         return g_async_result_get_user_data(getAsyncResultTStruct());
126     }
127    
128     /**
129      * Gets the source object from a GAsyncResult.
130      * Returns: a new reference to the source object for the res, or NULL if there is none. [transfer full]
131      */
132     public ObjectG getSourceObject()
133     {
134         // GObject * g_async_result_get_source_object (GAsyncResult *res);
135         auto p = g_async_result_get_source_object(getAsyncResultTStruct());
136         if(p is null)
137         {
138             return null;
139         }
140         return new ObjectG(cast(GObject*) p);
141     }
142 }
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