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  var popup = PopupUtils.open(infoPopupComponent, root, {title: title, text: text})
82  // FIXME: SDK will do this internally soonish
83  popup.z = Number.MAX_VALUE
84  }
85 
86  Rectangle {
87  // In case background fails to load
88  id: backgroundBackup
89  anchors.fill: parent
90  color: "black"
91  visible: root.background.toString() !== ""
92  }
93 
94  Image {
95  id: backgroundImage
96  objectName: "lockscreenBackground"
97  anchors {
98  fill: parent
99  }
100  source: root.required ? root.background : ""
101  fillMode: Image.PreserveAspectCrop
102  }
103 
104  MouseArea {
105  anchors.fill: root
106  onClicked: {
107  if (pinPadLoader.item)
108  pinPadLoader.item.forceActiveFocus()
109  }
110  }
111 
112  FocusScope {
113  id: loaderScope
114  anchors.fill: parent
115 
116  Loader {
117  id: pinPadLoader
118  objectName: "pinPadLoader"
119  anchors.fill: parent
120  property bool resetting: false
121  property bool waiting: false
122  property bool showWrongText: false
123 
124  source: {
125  if (resetting || !root.required) {
126  return ""
127  } else if (root.delayMinutes > 0) {
128  return "DelayedLockscreen.qml"
129  } else if (root.alphaNumeric) {
130  return "PassphraseLockscreen.qml"
131  } else {
132  return "PinLockscreen.qml"
133  }
134  }
135  onSourceChanged: {
136  waiting = false
137  showWrongText = false
138  if (loaderScope.activeFocus && pinPadLoader.item)
139  pinPadLoader.item.forceActiveFocus()
140  }
141 
142  Connections {
143  target: pinPadLoader.item
144 
145  onEntered: {
146  pinPadLoader.waiting = true
147  root.entered(passphrase);
148  }
149 
150  onCancel: {
151  root.cancel()
152  }
153  }
154 
155  Binding {
156  target: pinPadLoader.item
157  property: "minPinLength"
158  value: root.minPinLength
159  }
160  Binding {
161  target: pinPadLoader.item
162  property: "maxPinLength"
163  value: root.maxPinLength
164  }
165  Binding {
166  target: pinPadLoader.item
167  property: "infoText"
168  value: root.infoText
169  }
170  Binding {
171  target: pinPadLoader.item
172  property: "retryText"
173  value: root.retryText
174  }
175  Binding {
176  target: pinPadLoader.item
177  property: "errorText"
178  value: pinPadLoader.showWrongText ? root.errorText : ""
179  }
180  Binding {
181  target: pinPadLoader.item
182  property: "entryEnabled"
183  value: !pinPadLoader.waiting
184  }
185  Binding {
186  target: pinPadLoader.item
187  property: "alphaNumeric"
188  value: root.alphaNumeric
189  }
190  Binding {
191  target: pinPadLoader.item
192  property: "delayMinutes"
193  value: root.delayMinutes
194  }
195  }
196  Binding {
197  target: pinPadLoader.item
198  property: "showCancelButton"
199  value: root.showCancelButton
200  }
201  }
202 
203  Item {
204  id: emergencyCallRow
205 
206  visible: showEmergencyCallButton
207 
208  anchors {
209  bottom: parent.bottom
210  bottomMargin: units.gu(7) + (Qt.inputMethod.visible ? Qt.inputMethod.keyboardRectangle.height : 0)
211  left: parent.left
212  right: parent.right
213  }
214 
215  Label {
216  id: emergencyCallLabel
217  objectName: "emergencyCallLabel"
218  anchors.horizontalCenter: parent.horizontalCenter
219 
220  text: i18n.tr("Emergency Call")
221  color: "#f3f3e7"
222  }
223 
224  Icon {
225  id: emergencyCallIcon
226  anchors.left: emergencyCallLabel.right
227  anchors.leftMargin: units.gu(1)
228  width: emergencyCallLabel.height
229  height: emergencyCallLabel.height
230  name: "call-start"
231  color: "#f3f3e7"
232  }
233 
234  MouseArea {
235  anchors.top: emergencyCallLabel.top
236  anchors.bottom: emergencyCallLabel.bottom
237  anchors.left: emergencyCallLabel.left
238  anchors.right: emergencyCallIcon.right
239  onClicked: root.emergencyCall()
240  }
241  }
242 
243  Component {
244  id: infoPopupComponent
245  Dialog {
246  id: dialog
247  objectName: "infoPopup"
248  modal: true
249 
250  Button {
251  objectName: "infoPopupOkButton"
252  text: i18n.tr("OK")
253  onClicked: {
254  PopupUtils.close(dialog)
255  root.infoPopupConfirmed();
256  }
257  }
258  }
259  }
260 }