blob: 99f20fffd1d2a75c16d8f5855a9ee7272918d714 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.webkit;
import android.content.ContentResolver;
import android.graphics.Bitmap;
/**
* Functions for manipulating the icon database used by WebView.
* These functions require that a WebView be constructed before being invoked
* and WebView.getIconDatabase() will return a WebIconDatabase object. This
* WebIconDatabase object is a single instance and all methods operate on that
* single object.
*/
public class WebIconDatabase {
/**
* Interface for receiving icons from the database.
*/
public interface IconListener {
/**
* Called when the icon has been retrieved from the database and the
* result is non-null.
* @param url The url passed in the request.
* @param icon The favicon for the given url.
*/
public void onReceivedIcon(String url, Bitmap icon);
}
/**
* Open a the icon database and store the icons in the given path.
* @param path The directory path where the icon database will be stored.
*/
public void open(String path) {
throw new MustOverrideException();
}
/**
* Close the shared instance of the icon database.
*/
public void close() {
throw new MustOverrideException();
}
/**
* Removes all the icons in the database.
*/
public void removeAllIcons() {
throw new MustOverrideException();
}
/**
* Request the Bitmap representing the icon for the given page
* url. If the icon exists, the listener will be called with the result.
* @param url The page's url.
* @param listener An implementation on IconListener to receive the result.
*/
public void requestIconForPageUrl(String url, IconListener listener) {
throw new MustOverrideException();
}
/** {@hide}
*/
public void bulkRequestIconForPageUrl(ContentResolver cr, String where,
IconListener listener) {
throw new MustOverrideException();
}
/**
* Retain the icon for the given page url.
* @param url The page's url.
*/
public void retainIconForPageUrl(String url) {
throw new MustOverrideException();
}
/**
* Release the icon for the given page url.
* @param url The page's url.
*/
public void releaseIconForPageUrl(String url) {
throw new MustOverrideException();
}
/**
* Get the global instance of WebIconDatabase.
* @return A single instance of WebIconDatabase. It will be the same
* instance for the current process each time this method is
* called.
*/
public static WebIconDatabase getInstance() {
// XXX: Must be created in the UI thread.
return WebViewFactory.getProvider().getWebIconDatabase();
}
/**
* @hide Only for use by WebViewProvider implementations
*/
protected WebIconDatabase() {}
}
|
