The Tor Browser / file comparison

comparison: mobile/android/base/preferences/PanelsPreference.java

mobile/android/base/preferences/PanelsPreference.java

changeset 0
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1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4
5 package org.mozilla.gecko.preferences;
6
7 import org.mozilla.gecko.animation.PropertyAnimator;
8 import org.mozilla.gecko.animation.PropertyAnimator.Property;
9 import org.mozilla.gecko.animation.ViewHelper;
10 import org.mozilla.gecko.R;
11
12 import android.app.AlertDialog;
13 import android.app.Dialog;
14 import android.content.Context;
15 import android.content.DialogInterface;
16 import android.content.DialogInterface.OnClickListener;
17 import android.content.DialogInterface.OnShowListener;
18 import android.content.res.Resources;
19 import android.util.Log;
20 import android.view.View;
21 import android.view.ViewGroup;
22 import android.widget.TextView;
23
24 public class PanelsPreference extends CustomListPreference {
25 protected String LOGTAG = "PanelsPreference";
26
27 // Position state of this Preference in enclosing category.
28 private static final int STATE_IS_FIRST = 0;
29 private static final int STATE_IS_LAST = 1;
30
31 /**
32 * Index of the context menu button for controlling display options.
33 * For (removable) Dynamic panels, this button removes the panel.
34 * For built-in panels, this button toggles showing or hiding the panel.
35 */
36 private static final int INDEX_DISPLAY_BUTTON = 1;
37 private static final int INDEX_REORDER_BUTTON = 2;
38
39 // Indices of buttons in context menu for reordering.
40 private static final int INDEX_MOVE_UP_BUTTON = 0;
41 private static final int INDEX_MOVE_DOWN_BUTTON = 1;
42
43 private String LABEL_HIDE;
44 private String LABEL_SHOW;
45
46 private View preferenceView;
47 protected boolean mIsHidden = false;
48 private boolean mIsRemovable;
49
50 private boolean mAnimate;
51 private static final int ANIMATION_DURATION_MS = 400;
52
53 // State for reordering.
54 private int mPositionState = -1;
55 private final int mIndex;
56
57 public PanelsPreference(Context context, CustomListCategory parentCategory, boolean isRemovable, int index, boolean animate) {
58 super(context, parentCategory);
59 mIsRemovable = isRemovable;
60 mIndex = index;
61 mAnimate = animate;
62 }
63
64 @Override
65 protected int getPreferenceLayoutResource() {
66 return R.layout.preference_panels;
67 }
68
69 @Override
70 protected void onBindView(View view) {
71 super.onBindView(view);
72
73 // Override view handling so we can grey out "hidden" PanelPreferences.
74 view.setEnabled(!mIsHidden);
75
76 if (view instanceof ViewGroup) {
77 final ViewGroup group = (ViewGroup) view;
78 for (int i = 0; i < group.getChildCount(); i++) {
79 group.getChildAt(i).setEnabled(!mIsHidden);
80 }
81 preferenceView = group;
82 }
83
84 if (mAnimate) {
85 ViewHelper.setAlpha(preferenceView, 0);
86
87 final PropertyAnimator animator = new PropertyAnimator(ANIMATION_DURATION_MS);
88 animator.attach(preferenceView, Property.ALPHA, 1);
89 animator.start();
90
91 // Clear animate flag.
92 mAnimate = false;
93 }
94 }
95
96 @Override
97 protected String[] createDialogItems() {
98 final Resources res = getContext().getResources();
99 final String labelReorder = res.getString(R.string.pref_panels_reorder);
100
101 if (mIsRemovable) {
102 return new String[] { LABEL_SET_AS_DEFAULT, LABEL_REMOVE, labelReorder };
103 }
104
105 // Built-in panels can't be removed, so use show/hide options.
106 LABEL_HIDE = res.getString(R.string.pref_panels_hide);
107 LABEL_SHOW = res.getString(R.string.pref_panels_show);
108
109 return new String[] { LABEL_SET_AS_DEFAULT, LABEL_HIDE, labelReorder };
110 }
111
112 @Override
113 public void setIsDefault(boolean isDefault) {
114 mIsDefault = isDefault;
115 if (isDefault) {
116 setSummary(LABEL_IS_DEFAULT);
117 if (mIsHidden) {
118 // Unhide the panel if it's being set as the default.
119 setHidden(false);
120 }
121 } else {
122 setSummary("");
123 }
124 }
125
126 @Override
127 protected void onDialogIndexClicked(int index) {
128 switch(index) {
129 case INDEX_SET_DEFAULT_BUTTON:
130 mParentCategory.setDefault(this);
131 break;
132
133 case INDEX_DISPLAY_BUTTON:
134 // Handle display options for the panel.
135 if (mIsRemovable) {
136 // For removable panels, the button displays text for removing the panel.
137 mParentCategory.uninstall(this);
138 } else {
139 // Otherwise, the button toggles between text for showing or hiding the panel.
140 ((PanelsPreferenceCategory) mParentCategory).setHidden(this, !mIsHidden);
141 }
142 break;
143
144 case INDEX_REORDER_BUTTON:
145 // Display dialog for changing preference order.
146 final Dialog orderDialog = makeReorderDialog();
147 orderDialog.show();
148 break;
149
150 default:
151 Log.w(LOGTAG, "Selected index out of range: " + index);
152 }
153 }
154
155 @Override
156 protected void configureShownDialog() {
157 super.configureShownDialog();
158
159 // Handle Show/Hide buttons.
160 if (!mIsRemovable) {
161 final TextView hideButton = (TextView) mDialog.getListView().getChildAt(INDEX_DISPLAY_BUTTON);
162 hideButton.setText(mIsHidden ? LABEL_SHOW : LABEL_HIDE);
163 }
164 }
165
166
167 private Dialog makeReorderDialog() {
168 final AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
169
170 final Resources res = getContext().getResources();
171 final String labelUp = res.getString(R.string.pref_panels_move_up);
172 final String labelDown = res.getString(R.string.pref_panels_move_down);
173
174 builder.setTitle(getTitle());
175 builder.setItems(new String[] { labelUp, labelDown }, new OnClickListener() {
176 @Override
177 public void onClick(DialogInterface dialog, int index) {
178 dialog.dismiss();
179 switch (index) {
180 case INDEX_MOVE_UP_BUTTON:
181 ((PanelsPreferenceCategory) mParentCategory).moveUp(PanelsPreference.this);
182 break;
183
184 case INDEX_MOVE_DOWN_BUTTON:
185 ((PanelsPreferenceCategory) mParentCategory).moveDown(PanelsPreference.this);
186 break;
187 }
188 }
189 });
190
191 final Dialog dialog = builder.create();
192 dialog.setOnShowListener(new OnShowListener() {
193 @Override
194 public void onShow(DialogInterface dialog) {
195 setReorderItemsEnabled(dialog);
196 }
197 });
198
199 return dialog;
200 }
201
202 public void setIsFirst() {
203 mPositionState = STATE_IS_FIRST;
204 }
205
206 public void setIsLast() {
207 mPositionState = STATE_IS_LAST;
208 }
209
210 /**
211 * Configure enabled state of the reorder dialog, which must be done after the dialog is shown.
212 * @param dialog Dialog to configure
213 */
214 private void setReorderItemsEnabled(DialogInterface dialog) {
215 // Update button enabled-ness for reordering.
216 switch (mPositionState) {
217 case STATE_IS_FIRST:
218 final TextView itemUp = (TextView) ((AlertDialog) dialog).getListView().getChildAt(INDEX_MOVE_UP_BUTTON);
219 itemUp.setEnabled(false);
220 // Disable clicks to this view.
221 itemUp.setOnClickListener(null);
222 break;
223
224 case STATE_IS_LAST:
225 final TextView itemDown = (TextView) ((AlertDialog) dialog).getListView().getChildAt(INDEX_MOVE_DOWN_BUTTON);
226 itemDown.setEnabled(false);
227 // Disable clicks to this view.
228 itemDown.setOnClickListener(null);
229 break;
230
231 default:
232 // Do nothing.
233 break;
234 }
235 }
236
237 public void setHidden(boolean toHide) {
238 if (toHide) {
239 setIsDefault(false);
240 }
241
242 if (mIsHidden != toHide) {
243 mIsHidden = toHide;
244 notifyChanged();
245 }
246 }
247
248 public boolean isHidden() {
249 return mIsHidden;
250 }
251
252 public int getIndex() {
253 return mIndex;
254 }
255 }

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