Unity 8
 All Classes Functions
Lockscreen.qml
1 /*
2  * Copyright (C) 2013 Canonical, Ltd.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; version 3.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  */
16 
17 import QtQuick 2.0
18 import Ubuntu.Components 1.0
19 import Ubuntu.Components.Popups 1.0
20 
21 Showable {
22  id: root
23 
24  // Determine if a numeric or alphanumeric pad is used.
25  property bool alphaNumeric: false
26 
27  // Whether to show an emergency call button
28  property bool showEmergencyCallButton: true
29 
30  // Whether to show a cancel button (not all lockscreen types normally do anyway)
31  property bool showCancelButton: true
32 
33  // Informational text. (e.g. some text to tell which domain this is pin is entered for)
34  property string infoText: ""
35 
36  // Retries text (e.g. 3 retries left)
37  // (This is not currently used, but will be necessary for SIM unlock screen)
38  property string retryText: ""
39 
40  // The text to be displayed in case the login failed
41  property string errorText: ""
42 
43  // If > 0, a forced delay is happening
44  property int delayMinutes: 0
45 
46  // Set those to a value greater 0 to restrict the pin length.
47  // If both are unset, the Lockscreen will show a confirm button and allow typing any length of pin before
48  // confirming. If minPinLength is set to a value > 0, the confirm button will only become active when the
49  // entered pin is at least that long. If maxPinLength is set, the lockscreen won't allow entering any
50  // more numbers than that. If both are set to the same value, the lockscreen will enter auto confirming
51  // behavior, hiding the confirmation button and triggering that automatically when the entered pin reached
52  // that length. This is ignored by the alphaNumeric lockscreen as that one is always confirmed by pressing
53  // enter on the OSK.
54  property int minPinLength: -1
55  property int maxPinLength: -1
56 
57  property url background: ""
58 
59  signal entered(string passphrase)
60  signal cancel()
61  signal emergencyCall()
62  signal infoPopupConfirmed()
63 
64  onActiveFocusChanged: if (activeFocus && pinPadLoader.item) pinPadLoader.item.forceActiveFocus()
65 
66  function reset() {
67  // This causes the loader below to destry and recreate the source
68  pinPadLoader.resetting = true;
69  pinPadLoader.resetting = false;
70  }
71 
72  function clear(showAnimation) {
73  if (pinPadLoader.item) {
74  pinPadLoader.item.clear(showAnimation);
75  }
76  pinPadLoader.showWrongText = showAnimation
77  pinPadLoader.waiting = false
78  }
79 
80  function showInfoPopup(title, text) {
81  PopupUtils.open(infoPopupComponent, root, {title: title, text: text})
82  }
83 
84  Rectangle {
85  // In case background fails to load
86  id: backgroundBackup
87  anchors.fill: parent
88  color: "black"
89  visible: root.background.toString() !== ""
90  }
91 
92  Image {
93  id: backgroundImage
94  objectName: "lockscreenBackground"
95  anchors {
96  fill: parent
97  }
98  source: root.required ? root.background : ""
99  fillMode: Image.PreserveAspectCrop
100  }
101 
102  MouseArea {
103  anchors.fill: root
104  onClicked: {
105  if (pinPadLoader.item)
106  pinPadLoader.item.forceActiveFocus()
107  }
108  }
109 
110  FocusScope {
111  id: loaderScope
112  anchors.fill: parent
113 
114  Loader {
115  id: pinPadLoader
116  objectName: "pinPadLoader"
117  anchors.fill: parent
118  property bool resetting: false
119  property bool waiting: false
120  property bool showWrongText: false
121 
122  source: {
123  if (resetting || !root.required) {
124  return ""
125  } else if (root.delayMinutes > 0) {
126  return "DelayedLockscreen.qml"
127  } else if (root.alphaNumeric) {
128  return "PassphraseLockscreen.qml"
129  } else {
130  return "PinLockscreen.qml"
131  }
132  }
133  onSourceChanged: {
134  waiting = false
135  showWrongText = false
136  if (loaderScope.activeFocus && pinPadLoader.item)
137  pinPadLoader.item.forceActiveFocus()
138  }
139 
140  Connections {
141  target: pinPadLoader.item
142 
143  onEntered: {
144  pinPadLoader.waiting = true
145  root.entered(passphrase);
146  }
147 
148  onCancel: {
149  root.cancel()
150  }
151  }
152 
153  Binding {
154  target: pinPadLoader.item
155  property: "minPinLength"
156  value: root.minPinLength
157  }
158  Binding {
159  target: pinPadLoader.item
160  property: "maxPinLength"
161  value: root.maxPinLength
162  }
163  Binding {
164  target: pinPadLoader.item
165  property: "infoText"
166  value: root.infoText
167  }
168  Binding {
169  target: pinPadLoader.item
170  property: "retryText"
171  value: root.retryText
172  }
173  Binding {
174  target: pinPadLoader.item
175  property: "errorText"
176  value: pinPadLoader.showWrongText ? root.errorText : ""
177  }
178  Binding {
179  target: pinPadLoader.item
180  property: "entryEnabled"
181  value: !pinPadLoader.waiting
182  }
183  Binding {
184  target: pinPadLoader.item
185  property: "alphaNumeric"
186  value: root.alphaNumeric
187  }
188  Binding {
189  target: pinPadLoader.item
190  property: "delayMinutes"
191  value: root.delayMinutes
192  }
193  }
194  Binding {
195  target: pinPadLoader.item
196  property: "showCancelButton"
197  value: root.showCancelButton
198  }
199  }
200 
201  Item {
202  id: emergencyCallRow
203 
204  visible: showEmergencyCallButton
205 
206  anchors {
207  bottom: parent.bottom
208  bottomMargin: units.gu(7) + (Qt.inputMethod.visible ? Qt.inputMethod.keyboardRectangle.height : 0)
209  left: parent.left
210  right: parent.right
211  }
212 
213  Label {
214  id: emergencyCallLabel
215  objectName: "emergencyCallLabel"
216  anchors.horizontalCenter: parent.horizontalCenter
217 
218  text: i18n.tr("Emergency Call")
219  color: "#f3f3e7"
220  }
221 
222  Icon {
223  id: emergencyCallIcon
224  anchors.left: emergencyCallLabel.right
225  anchors.leftMargin: units.gu(1)
226  width: emergencyCallLabel.height
227  height: emergencyCallLabel.height
228  name: "call-start"
229  color: "#f3f3e7"
230  }
231 
232  MouseArea {
233  anchors.top: emergencyCallLabel.top
234  anchors.bottom: emergencyCallLabel.bottom
235  anchors.left: emergencyCallLabel.left
236  anchors.right: emergencyCallIcon.right
237  onClicked: root.emergencyCall()
238  }
239  }
240 
241  Component {
242  id: infoPopupComponent
243  Dialog {
244  id: dialog
245  objectName: "infoPopup"
246  modal: true
247 
248  Button {
249  objectName: "infoPopupOkButton"
250  text: i18n.tr("OK")
251  onClicked: {
252  PopupUtils.close(dialog)
253  root.infoPopupConfirmed();
254  }
255  }
256  }
257  }
258 }