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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
*
* 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.ide.common.layout;
import static com.android.SdkConstants.FQCN_TABLE_ROW;
import com.android.annotations.NonNull;
import com.android.annotations.Nullable;
import com.android.ide.common.api.DropFeedback;
import com.android.ide.common.api.IClientRulesEngine;
import com.android.ide.common.api.IMenuCallback;
import com.android.ide.common.api.INode;
import com.android.ide.common.api.INodeHandler;
import com.android.ide.common.api.IViewRule;
import com.android.ide.common.api.InsertType;
import com.android.ide.common.api.RuleAction;
import com.android.ide.common.api.SegmentType;
import java.net.URL;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
* An {@link IViewRule} for android.widget.TableLayout.
*/
public class TableLayoutRule extends LinearLayoutRule {
// A table is a linear layout, but with a few differences:
// the default is vertical, not horizontal
// The fill of all children should be wrap_content
private static final String ACTION_ADD_ROW = "_addrow"; //$NON-NLS-1$
private static final String ACTION_REMOVE_ROW = "_removerow"; //$NON-NLS-1$
private static final URL ICON_ADD_ROW =
TableLayoutRule.class.getResource("addrow.png"); //$NON-NLS-1$
private static final URL ICON_REMOVE_ROW =
TableLayoutRule.class.getResource("removerow.png"); //$NON-NLS-1$
@Override
protected boolean isVertical(INode node) {
// Tables are always vertical
return true;
}
@Override
protected boolean supportsOrientation() {
return false;
}
@Override
public void onChildInserted(@NonNull INode child, @NonNull INode parent,
@NonNull InsertType insertType) {
// Overridden to inhibit the setting of layout_width/layout_height since
// it should always be match_parent
}
/**
* Add an explicit "Add Row" action to the context menu
*/
@Override
public void addContextMenuActions(@NonNull List<RuleAction> actions,
final @NonNull INode selectedNode) {
super.addContextMenuActions(actions, selectedNode);
IMenuCallback addTab = new IMenuCallback() {
@Override
public void action(
@NonNull RuleAction action,
@NonNull List<? extends INode> selectedNodes,
final @Nullable String valueId,
@Nullable Boolean newValue) {
final INode node = selectedNode;
INode newRow = node.appendChild(FQCN_TABLE_ROW);
mRulesEngine.select(Collections.singletonList(newRow));
}
};
actions.add(RuleAction.createAction("_addrow", "Add Row", addTab, null, 5, false)); //$NON-NLS-1$
}
@Override
public void addLayoutActions(
@NonNull List<RuleAction> actions,
final @NonNull INode parentNode,
final @NonNull List<? extends INode> children) {
super.addLayoutActions(actions, parentNode, children);
addTableLayoutActions(mRulesEngine, actions, parentNode, children);
}
/**
* Adds layout actions to add and remove toolbar items
*/
static void addTableLayoutActions(final IClientRulesEngine rulesEngine,
List<RuleAction> actions, final INode parentNode,
final List<? extends INode> children) {
IMenuCallback actionCallback = new IMenuCallback() {
@Override
public void action(
final @NonNull RuleAction action,
@NonNull List<? extends INode> selectedNodes,
final @Nullable String valueId,
final @Nullable Boolean newValue) {
parentNode.editXml("Add/Remove Table Row", new INodeHandler() {
@Override
public void handle(@NonNull INode n) {
if (action.getId().equals(ACTION_ADD_ROW)) {
// Determine the index of the selection, if any; if there is
// a selection, insert the row before the current row, otherwise
// append it to the table.
int index = -1;
INode[] rows = parentNode.getChildren();
if (children != null) {
findTableIndex:
for (INode child : children) {
// Find direct child of table layout
while (child != null && child.getParent() != parentNode) {
child = child.getParent();
}
if (child != null) {
// Compute index of direct child of table layout
for (int i = 0; i < rows.length; i++) {
if (rows[i] == child) {
index = i;
break findTableIndex;
}
}
}
}
}
INode newRow;
if (index == -1) {
newRow = parentNode.appendChild(FQCN_TABLE_ROW);
} else {
newRow = parentNode.insertChildAt(FQCN_TABLE_ROW, index);
}
rulesEngine.select(Collections.singletonList(newRow));
} else if (action.getId().equals(ACTION_REMOVE_ROW)) {
// Find the direct children of the TableLayout to delete;
// this is necessary since TableRow might also use
// this implementation, so the parentNode is the true
// TableLayout but the children might be grand children.
Set<INode> targets = new HashSet<INode>();
for (INode child : children) {
while (child != null && child.getParent() != parentNode) {
child = child.getParent();
}
if (child != null) {
targets.add(child);
}
}
for (INode target : targets) {
parentNode.removeChild(target);
}
}
}
});
}
};
// Add Row
actions.add(RuleAction.createSeparator(150));
actions.add(RuleAction.createAction(ACTION_ADD_ROW, "Add Table Row", actionCallback,
ICON_ADD_ROW, 160, false));
// Remove Row (if something is selected)
if (children != null && children.size() > 0) {
actions.add(RuleAction.createAction(ACTION_REMOVE_ROW, "Remove Table Row",
actionCallback, ICON_REMOVE_ROW, 170, false));
}
}
@Override
public void onCreate(@NonNull INode node, @NonNull INode parent,
@NonNull InsertType insertType) {
super.onCreate(node, parent, insertType);
if (insertType.isCreate()) {
// Start the table with 4 rows
for (int i = 0; i < 4; i++) {
node.appendChild(FQCN_TABLE_ROW);
}
}
}
@Override
public DropFeedback onResizeBegin(@NonNull INode child, @NonNull INode parent,
@Nullable SegmentType horizontalEdge, @Nullable SegmentType verticalEdge,
@Nullable Object childView, @Nullable Object parentView) {
// Children of a table layout cannot set their widths (it is controlled by column
// settings on the table). They can set their heights (though for TableRow, the
// height is always wrap_content).
if (horizontalEdge == null) { // Widths are edited by vertical edges.
// The user is not editing a vertical height so don't allow resizing at all
return null;
}
if (child.getFqcn().equals(FQCN_TABLE_ROW)) {
// TableRows are always WRAP_CONTENT
return null;
}
// Allow resizing heights only
return super.onResizeBegin(child, parent, horizontalEdge, null /*verticalEdge*/,
childView, parentView);
}
}
|
