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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
/*
* Copyright (C) 2011 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 com.android.browser;
import android.net.Uri;
import android.text.TextUtils;
import android.util.Log;
import android.webkit.SearchBox;
import java.util.Map;
/**
* Class to manage the controlling of preloaded tab.
*/
public class PreloadedTabControl {
private static final boolean LOGD_ENABLED = com.android.browser.Browser.LOGD_ENABLED;
private static final String LOGTAG = "PreloadedTabControl";
final Tab mTab;
private String mLastQuery;
private boolean mDestroyed;
public PreloadedTabControl(Tab t) {
if (LOGD_ENABLED) Log.d(LOGTAG, "PreloadedTabControl.<init>");
mTab = t;
}
private void maybeSetQuery(final String query, SearchBox sb) {
if (!TextUtils.equals(mLastQuery, query)) {
if (sb != null) {
if (LOGD_ENABLED) Log.d(LOGTAG, "Changing searchbox query to " + query);
sb.setVerbatim(true);
sb.setQuery(query);
sb.onchange(new SearchBox.SearchBoxListener() {
@Override
public void onChangeComplete(boolean called) {
if (mDestroyed) return;
if (LOGD_ENABLED) Log.d(LOGTAG, "Changed searchbox query: " + called);
if (called) {
mLastQuery = query;
}
}
});
} else {
if (LOGD_ENABLED) Log.d(LOGTAG, "Cannot set query: no searchbox interface");
}
}
}
public void setQuery(String query) {
maybeSetQuery(query, mTab.getWebView().getSearchBox());
}
public boolean searchBoxSubmit(final String query,
final String fallbackUrl, final Map<String, String> fallbackHeaders) {
final SearchBox sb = mTab.getWebView().getSearchBox();
if (sb == null) {
// no searchbox, cannot submit. Fallback to regular tab creation
if (LOGD_ENABLED) Log.d(LOGTAG, "No searchbox, cannot submit query");
return false;
}
maybeSetQuery(query, sb);
if (LOGD_ENABLED) Log.d(LOGTAG, "Submitting query " + query);
sb.onsubmit(new SearchBox.SearchBoxListener() {
@Override
public void onSubmitComplete(boolean called) {
if (mDestroyed) return;
if (LOGD_ENABLED) Log.d(LOGTAG, "Query submitted: " + called);
if (!called) {
if (LOGD_ENABLED) Log.d(LOGTAG, "Query not submitted; falling back");
loadUrl(fallbackUrl, fallbackHeaders);
// make sure that the failed, preloaded URL is cleared from the back stack
mTab.clearBackStackWhenItemAdded(fallbackUrl);
}
}});
return true;
}
public void searchBoxCancel() {
SearchBox sb = mTab.getWebView().getSearchBox();
if (sb != null) {
mLastQuery = null;
sb.oncancel(new SearchBox.SearchBoxListener(){
@Override
public void onCancelComplete(boolean called) {
if (LOGD_ENABLED) Log.d(LOGTAG, "Query cancelled: " + called);
}
});
}
}
public void loadUrlIfChanged(String url, Map<String, String> headers) {
String currentUrl = mTab.getUrl();
if (!TextUtils.isEmpty(currentUrl)) {
try {
// remove fragment:
currentUrl = Uri.parse(currentUrl).buildUpon().fragment(null).build().toString();
} catch (UnsupportedOperationException e) {
// carry on
}
}
if (LOGD_ENABLED) Log.d(LOGTAG, "loadUrlIfChanged\nnew: " + url + "\nold: " +currentUrl);
if (!TextUtils.equals(url, currentUrl)) {
loadUrl(url, headers);
}
}
public void loadUrl(String url, Map<String, String> headers) {
if (LOGD_ENABLED) Log.d(LOGTAG, "Preloading " + url);
mTab.loadUrl(url, headers);
}
public void destroy() {
if (LOGD_ENABLED) Log.d(LOGTAG, "PreloadedTabControl.destroy");
mDestroyed = true;
mTab.destroy();
}
public Tab getTab() {
return mTab;
}
}
|
