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 bool forceNonInteractive: false
27 property alias scopes: dashContentList.model
28 readonly property alias currentIndex: dashContentList.currentIndex
29 readonly property string currentScopeId: dashContentList.currentItem ? dashContentList.currentItem.scopeId : ""
30 readonly property var currentScope: dashContentList.currentItem ? dashContentList.currentItem.theScope : null
31 readonly property bool subPageShown: dashContentList.currentItem && dashContentList.currentItem.item ?
32 dashContentList.currentItem.item.subPageShown : false
33 readonly property bool processing: dashContentList.currentItem && dashContentList.currentItem.item
34 && dashContentList.currentItem.item.processing || false
35 readonly property bool pageHeaderTotallyVisible: dashContentList.currentItem && dashContentList.currentItem.item
36 && dashContentList.currentItem.item.pageHeaderTotallyVisible || false
38 signal scopeLoaded(string scopeId)
39 signal gotoScope(string scopeId)
40 signal openScope(var scope)
43 // If we set the current scope index before the scopes have been added,
44 // then we need to wait until the loaded signals gets emitted from the scopes
45 property var set_current_index: undefined
49 if (scopes.loaded && set_current_index != undefined) {
50 setCurrentScopeAtIndex(set_current_index[0], set_current_index[1], set_current_index[2]);
51 set_current_index = undefined;
58 onOpened: dashContentList.currentItem.theScope.performQuery(uris[0])
61 function setCurrentScopeAtIndex(index, animate, reset) {
62 // if the scopes haven't loaded yet, then wait until they are.
64 set_current_index = [ index, animate, reset ]
68 var storedMoveDuration = dashContentList.highlightMoveDuration
69 var storedMoveSpeed = dashContentList.highlightMoveVelocity
71 dashContentList.highlightMoveVelocity = units.gu(4167)
72 dashContentList.highlightMoveDuration = 0
75 set_current_index = undefined;
77 if (dashContentList.count > index)
79 dashContentList.currentIndex = index
82 dashContentList.currentItem.item.positionAtBeginning()
87 dashContentList.highlightMoveDuration = storedMoveDuration
88 dashContentList.highlightMoveVelocity = storedMoveSpeed
93 id: dashContentListHolder
103 objectName: "dashContentList"
105 interactive: !dashContent.forceNonInteractive && dashContent.scopes.loaded && currentItem
106 && !currentItem.moving && !currentItem.navigationShown && !currentItem.subPageShown
108 orientation: ListView.Horizontal
109 boundsBehavior: Flickable.DragAndOvershootBounds
110 flickDeceleration: units.gu(625)
111 maximumFlickVelocity: width * 5
112 snapMode: ListView.SnapOneItem
113 highlightMoveDuration: 250
114 highlightRangeMode: ListView.StrictlyEnforceRange
115 // TODO Investigate if we can switch to a smaller cache buffer when/if UbuntuShape gets more performant
116 // 1073741823 is s^30 -1. A quite big number so that you have "infinite" cache, but not so
117 // big so that if you add if with itself you're outside the 2^31 int range
118 cacheBuffer: 1073741823
119 onMovementStarted: currentItem.item.showHeader();
122 // TODO QTBUG-40846 and QTBUG-40848
123 // The remove transition doesn't happen when removing the last item
124 // And can't work around it because index is reset to -1 regardless of
125 // ListView.delayRemove
128 SequentialAnimation {
129 PropertyAction { property: "layer.enabled"; value: true }
130 PropertyAction { property: "ListView.delayRemove"; value: true }
132 PropertyAnimation { properties: "scale"; to: 0.25; duration: UbuntuAnimation.SnapDuration }
133 PropertyAnimation { properties: "y"; to: dashContent.height; duration: UbuntuAnimation.SnapDuration }
135 PropertyAction { property: "ListView.delayRemove"; value: false }
138 removeDisplaced: Transition {
139 PropertyAnimation { property: "x"; duration: UbuntuAnimation.SnapDecision }
142 // If the number of items is less than the current index, then need to reset to another item.
145 if (currentIndex >= count) {
146 dashContent.setCurrentScopeAtIndex(count-1, true, true)
147 } else if (currentIndex < 0) {
148 // setting currentIndex directly, cause we don't want to loose set_current_index
149 dashContentList.currentIndex = 0
156 width: ListView.view.width
157 height: ListView.view.height
158 opacity: { // hide delegate if offscreen
159 var xPositionRelativetoView = ListView.view.contentX - x
160 return (xPositionRelativetoView > -width && xPositionRelativetoView < width) ? 1 : 0
163 source: "GenericScopeView.qml"
164 objectName: "scopeLoader" + index
166 readonly property bool moving: item ? item.moving : false
167 readonly property bool navigationShown: item ? item.navigationShown : false
168 readonly property bool subPageShown: item ? item.subPageShown : false
169 readonly property var categoryView: item ? item.categoryView : null
170 readonly property var theScope: scope
172 // these are needed for autopilot tests
173 readonly property string scopeId: scope.id
174 readonly property bool isCurrent: ListView.isCurrentItem
175 readonly property bool isLoaded: status == Loader.Ready
178 item.objectName = scope.id
179 item.scope = Qt.binding(function() { return scope })
180 item.isCurrent = Qt.binding(function() { return visible && ListView.isCurrentItem })
181 dashContent.scopeLoaded(item.scope.id)
182 item.paginationCount = Qt.binding(function() { return dashContentList.count } )
183 item.paginationIndex = Qt.binding(function() { return dashContentList.currentIndex } )
184 item.holdingList = dashContentList;
185 item.forceNonInteractive = Qt.binding(function() { return dashContent.forceNonInteractive } )
188 target: isCurrent ? scope : null
190 // Note here scopeId is the signal parameter and not the loader property
191 dashContent.gotoScope(scopeId);
194 dashContent.openScope(scope);
199 onClosePreview: if (item) item.closePreview()
202 Component.onDestruction: active = false