Unity 8
ListViewOSKScroller.qml
1 /*
2  * Copyright (C) 2015 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 2.4
18 import "../Components"
19 
20 Item {
21  id: root
22 
23  property ListView list
24 
25  Binding {
26  target: list
27  property: "bottomMargin"
28  value: d.bottomMargin
29  }
30 
31  function setMakeSureVisibleItem(item) {
32  d.previousVisibleHeight = d.visibleHeight;
33  d.makeSureVisibleItem = item;
34  }
35 
36  QtObject {
37  id: d
38  property var makeSureVisibleItem
39  property real previousVisibleHeight: 0
40  readonly property real visibleHeight: list.height - list.bottomMargin
41  readonly property real bottomMargin: Qt.inputMethod.visible ? Qt.inputMethod.keyboardRectangle.height : 0
42 
43  onVisibleHeightChanged: {
44  if (makeSureVisibleItem && makeSureVisibleItem.activeFocus && previousVisibleHeight > visibleHeight) {
45  var textAreaPos = makeSureVisibleItem.mapToItem(list, 0, 0);
46  if (textAreaPos.y + makeSureVisibleItem.height > visibleHeight) {
47  list.contentY += textAreaPos.y + makeSureVisibleItem.height - visibleHeight
48  }
49  }
50  previousVisibleHeight = visibleHeight;
51  }
52  }
53 }