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
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/*
* Copyright (C) 2009 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.Context;
import android.view.View;
import android.widget.AbsoluteLayout;
import java.util.ArrayList;
class ViewManager {
private final WebView mWebView;
private final ArrayList<ChildView> mChildren = new ArrayList<ChildView>();
private boolean mHidden;
class ChildView {
int x;
int y;
int width;
int height;
View mView; // generic view to show
ChildView() {
}
void setBounds(int x, int y, int width, int height) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
}
void attachView(int x, int y, int width, int height) {
if (mView == null) {
return;
}
setBounds(x, y, width, height);
final AbsoluteLayout.LayoutParams lp =
new AbsoluteLayout.LayoutParams(ctvX(width), ctvX(height),
ctvX(x), ctvY(y));
mWebView.mPrivateHandler.post(new Runnable() {
public void run() {
// This method may be called multiple times. If the view is
// already attached, just set the new LayoutParams,
// otherwise attach the view and add it to the list of
// children.
if (mView.getParent() != null) {
mView.setLayoutParams(lp);
} else {
attachViewOnUIThread(lp);
}
}
});
}
void attachViewOnUIThread(AbsoluteLayout.LayoutParams lp) {
mWebView.addView(mView, lp);
mChildren.add(this);
}
void removeView() {
if (mView == null) {
return;
}
mWebView.mPrivateHandler.post(new Runnable() {
public void run() {
removeViewOnUIThread();
}
});
}
void removeViewOnUIThread() {
mWebView.removeView(mView);
mChildren.remove(this);
}
}
ViewManager(WebView w) {
mWebView = w;
}
ChildView createView() {
return new ChildView();
}
/**
* Shorthand for calling mWebView.contentToViewX. Used when obtaining a
* view x coordinate from a content x coordinate, or when getting a
* view dimension from a content dimension, whether it be in x or y.
*/
private int ctvX(int val) {
return mWebView.contentToViewX(val);
}
/**
* Shorthand for calling mWebView.contentToViewY. Used when obtaining a
* view y coordinate from a content y coordinate.
*/
private int ctvY(int val) {
return mWebView.contentToViewY(val);
}
void scaleAll() {
for (ChildView v : mChildren) {
View view = v.mView;
AbsoluteLayout.LayoutParams lp =
(AbsoluteLayout.LayoutParams) view.getLayoutParams();
lp.width = ctvX(v.width);
lp.height = ctvX(v.height);
lp.x = ctvX(v.x);
lp.y = ctvY(v.y);
view.setLayoutParams(lp);
}
}
void hideAll() {
if (mHidden) {
return;
}
for (ChildView v : mChildren) {
v.mView.setVisibility(View.GONE);
}
mHidden = true;
}
void showAll() {
if (!mHidden) {
return;
}
for (ChildView v : mChildren) {
v.mView.setVisibility(View.VISIBLE);
}
mHidden = false;
}
}
|
