1 /*
2 * Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include "config.h"
27
28 #include "NotImplemented.h"
29
30 #include "Image.h"
31 #include "CachedImage.h"
32 #include "DragActions.h"
33 #include "DragClient.h"
34 #include <wtf/Vector.h>
35 #include <wtf/text/WTFString.h>
36
37 #include <wtf/java/JavaEnv.h>
38 #include "DragClientJava.h"
39
40 namespace WebCore {
41
42 // ---- DragImage.h ---- //
43 IntSize dragImageSize(DragImageRef pr)
44 {
45 return pr ? roundedIntSize(pr->size()) : IntSize();
46 }
47
48 DragImageRef scaleDragImage(DragImageRef pr, FloatSize)
49 {
50 //TODO: pass to java
51 notImplemented();
52 return pr;
53 }
54
55 DragImageRef dissolveDragImageToFraction(DragImageRef pr, float)
56 {
57 //TODO: pass to java
58 notImplemented();
59 return pr;
60 }
61
62 DragImageRef createDragImageFromImage(Image* img, ImageOrientationDescription)
63 {
64 return img;
65 }
66
67 DragImageRef createDragImageIconForCachedImage(CachedImage *cimg)
68 {
69 if (cimg->hasImage()) return nullptr;
70 return createDragImageFromImage(cimg->image(), ImageOrientationDescription(RespectImageOrientation)); // todo tav valid orientation?
71 }
72
73 void deleteDragImage(DragImageRef)
74 {
75 // Since DragImageRef is a RefPtr, there's nothing additional we need to do to
76 // delete it. It will be released when it falls out of scope.
77 }
78
79 DragImageRef createDragImageIconForCachedImageFilename(const String&)
80 {
81 return 0;
82 }
83
84
85 DragClientJava::DragClientJava(const JLObject &webPage)
86 : m_webPage(webPage)
87 {
88 }
89
90 DragClientJava::~DragClientJava()
91 {
92 }
93
94 void DragClientJava::dragControllerDestroyed()
95 {
96 delete this;
97 }
98
99 void DragClientJava::willPerformDragDestinationAction(
100 DragDestinationAction,
101 const DragData&)
102 {
103 notImplemented();
104 }
105
106 void DragClientJava::willPerformDragSourceAction(
107 DragSourceAction,
108 const IntPoint&,
109 DataTransfer&)
110 {
111 notImplemented();
112 }
113
114 DragDestinationAction DragClientJava::actionMaskForDrag(const DragData&)
115 {
116 //TODO: check input element and produce correct respond
117 notImplemented();
118 return DragDestinationActionAny;
119 }
120
121 //We work in window rather than view coordinates here
122 DragSourceAction DragClientJava::dragSourceActionMaskForPoint(const IntPoint&)
123 {
124 //TODO: check input element and produce correct respond
125 notImplemented();
126 return DragSourceActionAny;
127 }
128
129 void DragClientJava::startDrag(
130 DragImage dragImage,
131 const IntPoint& dragImageOrigin,
132 const IntPoint& eventPos,
133 const FloatPoint&,
134 DataTransfer& DataTransfer,
135 Frame&,
136 DragSourceAction dragSourceAction)
137 {
138 JNIEnv* env = WebCore_GetJavaEnv();
139 static jmethodID mid = env->GetMethodID(
140 PG_GetWebPageClass(env),
141 "fwkStartDrag", "("
142 "Ljava/lang/Object;"
143 "II"
144 "II"
145 "[Ljava/lang/String;"
146 "[Ljava/lang/Object;"
147 "Z"
148 ")V");
149 ASSERT(mid);
150
151 static JGClass clsString(env->FindClass("java/lang/String"));
152 static JGClass clsObject(env->FindClass("java/lang/Object"));
153
154 Vector<String> mimeTypes(DataTransfer.typesPrivate());
155 JLObjectArray jmimeTypes(env->NewObjectArray(mimeTypes.size(), clsString, NULL));
156 JLObjectArray jvalues(env->NewObjectArray(mimeTypes.size(), clsObject, NULL));
157 CheckAndClearException(env); // OOME
158
159 {
160 //we are temporary changing DataTransfer security context
161 //for transfer-to-Java purposes.
162
163 DataTransferAccessPolicy actualJSPolicy = DataTransfer.policy();
164 DataTransfer.setAccessPolicy(DataTransferAccessPolicy::Readable); //XXX DataTransferReadable);
165
166 int index = 0;
167 Vector<String>::const_iterator end = mimeTypes.end();
168 for(Vector<String>::const_iterator i = mimeTypes.begin();
169 end!=i;
170 ++i, ++index)
171 {
172 String value( DataTransfer.getData(*i) );
173
174 env->SetObjectArrayElement(
175 jmimeTypes,
176 index,
177 (jstring)i->toJavaString(env));
178
179 env->SetObjectArrayElement(
180 jvalues,
181 index,
182 (jstring)value.toJavaString(env));
183 }
184
185 DataTransfer.setAccessPolicy(actualJSPolicy);
186 }
187
188 // Attention! [jimage] can be the instance of WCImage or WCImageFrame class.
189 // The nature of raster is too different to make a conversion inside the native code.
190 jobject jimage = dragImage.get() && dragImage.get()->javaImage()
191 ? jobject(*(dragImage.get()->javaImage())) : nullptr;
192
193 bool isImageSource = dragSourceAction & DragSourceActionImage;
194
195 env->CallVoidMethod(m_webPage, mid, jimage,
196 eventPos.x() - dragImageOrigin.x(),
197 eventPos.y() - dragImageOrigin.y(),
198 eventPos.x(),
199 eventPos.y(),
200 jobjectArray(jmimeTypes),
201 jobjectArray(jvalues),
202 bool_to_jbool(isImageSource));
203 CheckAndClearException(env);
204 }
205
206 } // namespace WebCore