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"
26 property alias scopes: dashContentList.model
27 readonly property alias currentIndex: dashContentList.currentIndex
28 readonly property string currentScopeId: dashContentList.currentItem ? dashContentList.currentItem.scopeId : ""
29 readonly property var currentScope: dashContentList.currentItem ? dashContentList.currentItem.theScope : null
30 readonly property bool subPageShown: dashContentList.currentItem && dashContentList.currentItem.item ?
31 dashContentList.currentItem.item.subPageShown : false
32 readonly property bool processing: dashContentList.currentItem && dashContentList.currentItem.item
33 && dashContentList.currentItem.item.processing || false
34 readonly property bool pageHeaderTotallyVisible: dashContentList.currentItem && dashContentList.currentItem.item
35 && dashContentList.currentItem.item.pageHeaderTotallyVisible || false
37 signal scopeLoaded(string scopeId)
38 signal gotoScope(string scopeId)
39 signal openScope(var scope)
42 // If we set the current scope index before the scopes have been added,
43 // then we need to wait until the loaded signals gets emitted from the scopes
44 property var set_current_index: undefined
48 if (scopes.loaded && set_current_index != undefined) {
49 setCurrentScopeAtIndex(set_current_index[0], set_current_index[1], set_current_index[2]);
50 set_current_index = undefined;
57 onOpened: dashContentList.currentItem.theScope.performQuery(uris[0])
60 function setCurrentScopeAtIndex(index, animate, reset) {
61 // if the scopes haven't loaded yet, then wait until they are.
63 set_current_index = [ index, animate, reset ]
67 var storedMoveDuration = dashContentList.highlightMoveDuration
68 var storedMoveSpeed = dashContentList.highlightMoveVelocity
70 dashContentList.highlightMoveVelocity = units.gu(4167)
71 dashContentList.highlightMoveDuration = 0
74 set_current_index = undefined;
76 if (dashContentList.count > index)
78 dashContentList.currentIndex = index
81 dashContentList.currentItem.item.positionAtBeginning()
86 dashContentList.highlightMoveDuration = storedMoveDuration
87 dashContentList.highlightMoveVelocity = storedMoveSpeed
92 id: dashContentListHolder
102 objectName: "dashContentList"
104 interactive: dashContent.scopes.loaded && currentItem && !currentItem.moving && !currentItem.navigationShown && !currentItem.subPageShown
106 orientation: ListView.Horizontal
107 boundsBehavior: Flickable.DragAndOvershootBounds
108 flickDeceleration: units.gu(625)
109 maximumFlickVelocity: width * 5
110 snapMode: ListView.SnapOneItem
111 highlightMoveDuration: 250
112 highlightRangeMode: ListView.StrictlyEnforceRange
113 // TODO Investigate if we can switch to a smaller cache buffer when/if UbuntuShape gets more performant
114 // 1073741823 is s^30 -1. A quite big number so that you have "infinite" cache, but not so
115 // big so that if you add if with itself you're outside the 2^31 int range
116 cacheBuffer: 1073741823
117 onMovementStarted: currentItem.item.showHeader();
120 // TODO QTBUG-40846 and QTBUG-40848
121 // The remove transition doesn't happen when removing the last item
122 // And can't work around it because index is reset to -1 regardless of
123 // ListView.delayRemove
126 SequentialAnimation {
127 PropertyAction { property: "layer.enabled"; value: true }
128 PropertyAction { property: "ListView.delayRemove"; value: true }
130 PropertyAnimation { properties: "scale"; to: 0.25; duration: UbuntuAnimation.SnapDuration }
131 PropertyAnimation { properties: "y"; to: dashContent.height; duration: UbuntuAnimation.SnapDuration }
133 PropertyAction { property: "ListView.delayRemove"; value: false }
136 removeDisplaced: Transition {
137 PropertyAnimation { property: "x"; duration: UbuntuAnimation.SnapDecision }
140 // If the number of items is less than the current index, then need to reset to another item.
143 if (currentIndex >= count) {
144 dashContent.setCurrentScopeAtIndex(count-1, true, true)
145 } else if (currentIndex < 0) {
146 // setting currentIndex directly, cause we don't want to loose set_current_index
147 dashContentList.currentIndex = 0
154 width: ListView.view.width
155 height: ListView.view.height
156 opacity: { // hide delegate if offscreen
157 var xPositionRelativetoView = ListView.view.contentX - x
158 return (xPositionRelativetoView > -width && xPositionRelativetoView < width) ? 1 : 0
161 source: "GenericScopeView.qml"
162 objectName: scope.id + " loader"
164 readonly property bool moving: item ? item.moving : false
165 readonly property bool navigationShown: item ? item.navigationShown : false
166 readonly property bool subPageShown: item ? item.subPageShown : false
167 readonly property var categoryView: item ? item.categoryView : null
168 readonly property var theScope: scope
170 // these are needed for autopilot tests
171 readonly property string scopeId: scope.id
172 readonly property bool isCurrent: ListView.isCurrentItem
173 readonly property bool isLoaded: status == Loader.Ready
176 item.objectName = scope.id
177 item.scope = Qt.binding(function() { return scope })
178 item.isCurrent = Qt.binding(function() { return visible && ListView.isCurrentItem })
179 dashContent.scopeLoaded(item.scope.id)
180 item.paginationCount = Qt.binding(function() { return dashContentList.count } )
181 item.paginationIndex = Qt.binding(function() { return dashContentList.currentIndex } )
182 item.holdingList = dashContentList;
185 target: isCurrent ? scope : null
187 // Note here scopeId is the signal parameter and not the loader property
188 dashContent.gotoScope(scopeId);
191 dashContent.openScope(scope);
196 onClosePreview: if (item) item.closePreview()
199 Component.onDestruction: active = false