2 * Copyright (C) 2013, 2014 Canonical, Ltd.
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.
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.
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/>.
18 import Ubuntu.Components 0.1
21 import "../Components"
22 import "../Components/Flickables" as Flickables
27 property bool forceNonInteractive: false
28 property alias scopes: dashContentList.model
29 readonly property alias currentIndex: dashContentList.currentIndex
30 readonly property string currentScopeId: dashContentList.currentItem ? dashContentList.currentItem.scopeId : ""
31 readonly property var currentScope: dashContentList.currentItem ? dashContentList.currentItem.theScope : null
32 readonly property bool subPageShown: dashContentList.currentItem && dashContentList.currentItem.item ?
33 dashContentList.currentItem.item.subPageShown : false
34 readonly property bool processing: dashContentList.currentItem && dashContentList.currentItem.item
35 && dashContentList.currentItem.item.processing || false
36 readonly property bool pageHeaderTotallyVisible: dashContentList.currentItem && dashContentList.currentItem.item
37 && dashContentList.currentItem.item.pageHeaderTotallyVisible || false
39 signal scopeLoaded(string scopeId)
40 signal gotoScope(string scopeId)
41 signal openScope(var scope)
44 // If we set the current scope index before the scopes have been added,
45 // then we need to wait until the loaded signals gets emitted from the scopes
46 property var set_current_index: undefined
50 if (scopes.loaded && set_current_index != undefined) {
51 setCurrentScopeAtIndex(set_current_index[0], set_current_index[1], set_current_index[2]);
52 set_current_index = undefined;
59 onOpened: dashContentList.currentItem.theScope.performQuery(uris[0])
62 function setCurrentScopeAtIndex(index, animate, reset) {
63 // if the scopes haven't loaded yet, then wait until they are.
65 set_current_index = [ index, animate, reset ]
69 var storedMoveDuration = dashContentList.highlightMoveDuration
70 var storedMoveSpeed = dashContentList.highlightMoveVelocity
72 dashContentList.highlightMoveVelocity = units.gu(4167)
73 dashContentList.highlightMoveDuration = 0
76 set_current_index = undefined;
78 if (dashContentList.count > index)
80 dashContentList.currentIndex = index
83 dashContentList.currentItem.item.positionAtBeginning()
88 dashContentList.highlightMoveDuration = storedMoveDuration
89 dashContentList.highlightMoveVelocity = storedMoveSpeed
94 id: dashContentListHolder
102 Flickables.ListView {
104 objectName: "dashContentList"
106 interactive: !dashContent.forceNonInteractive && dashContent.scopes.loaded && currentItem
107 && !currentItem.moving && !currentItem.navigationShown && !currentItem.subPageShown
109 orientation: ListView.Horizontal
110 boundsBehavior: Flickable.DragAndOvershootBounds
111 snapMode: ListView.SnapOneItem
112 highlightMoveDuration: 250
113 highlightRangeMode: ListView.StrictlyEnforceRange
114 // TODO Investigate if we can switch to a smaller cache buffer when/if UbuntuShape gets more performant
115 // 1073741823 is s^30 -1. A quite big number so that you have "infinite" cache, but not so
116 // big so that if you add if with itself you're outside the 2^31 int range
117 cacheBuffer: 1073741823
118 onMovementStarted: currentItem.item.showHeader();
121 // TODO QTBUG-40846 and QTBUG-40848
122 // The remove transition doesn't happen when removing the last item
123 // And can't work around it because index is reset to -1 regardless of
124 // ListView.delayRemove
127 SequentialAnimation {
128 PropertyAction { property: "layer.enabled"; value: true }
129 PropertyAction { property: "ListView.delayRemove"; value: true }
131 PropertyAnimation { properties: "scale"; to: 0.25; duration: UbuntuAnimation.SnapDuration }
132 PropertyAnimation { properties: "y"; to: dashContent.height; duration: UbuntuAnimation.SnapDuration }
134 PropertyAction { property: "ListView.delayRemove"; value: false }
137 removeDisplaced: Transition {
138 PropertyAnimation { property: "x"; duration: UbuntuAnimation.SnapDecision }
141 // If the number of items is less than the current index, then need to reset to another item.
144 if (currentIndex >= count) {
145 dashContent.setCurrentScopeAtIndex(count-1, true, true)
146 } else if (currentIndex < 0) {
147 // setting currentIndex directly, cause we don't want to loose set_current_index
148 dashContentList.currentIndex = 0
155 width: ListView.view.width
156 height: ListView.view.height
157 opacity: { // hide delegate if offscreen
158 var xPositionRelativetoView = ListView.view.contentX - x
159 return (xPositionRelativetoView > -width && xPositionRelativetoView < width) ? 1 : 0
162 source: "GenericScopeView.qml"
163 objectName: scope.id + " loader"
165 readonly property bool moving: item ? item.moving : false
166 readonly property bool navigationShown: item ? item.navigationShown : false
167 readonly property bool subPageShown: item ? item.subPageShown : false
168 readonly property var categoryView: item ? item.categoryView : null
169 readonly property var theScope: scope
171 // these are needed for autopilot tests
172 readonly property string scopeId: scope.id
173 readonly property bool isCurrent: ListView.isCurrentItem
174 readonly property bool isLoaded: status == Loader.Ready
177 item.objectName = scope.id
178 item.scope = Qt.binding(function() { return scope })
179 item.isCurrent = Qt.binding(function() { return visible && ListView.isCurrentItem })
180 dashContent.scopeLoaded(item.scope.id)
181 item.paginationCount = Qt.binding(function() { return dashContentList.count } )
182 item.paginationIndex = Qt.binding(function() { return dashContentList.currentIndex } )
183 item.holdingList = dashContentList;
184 item.forceNonInteractive = Qt.binding(function() { return dashContent.forceNonInteractive } )
187 target: isCurrent ? scope : null
189 // Note here scopeId is the signal parameter and not the loader property
190 dashContent.gotoScope(scopeId);
193 dashContent.openScope(scope);
198 onClosePreview: if (item) item.closePreview()
201 Component.onDestruction: active = false