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 cacheBuffer: 1073741823
115 onMovementStarted: currentItem.item.showHeader();
118 // TODO QTBUG-40846 and QTBUG-40848
119 // The remove transition doesn't happen when removing the last item
120 // And can't work around it because index is reset to -1 regardless of
121 // ListView.delayRemove
124 SequentialAnimation {
125 PropertyAction { property: "layer.enabled"; value: true }
126 PropertyAction { property: "ListView.delayRemove"; value: true }
128 PropertyAnimation { properties: "scale"; to: 0.25; duration: UbuntuAnimation.SnapDuration }
129 PropertyAnimation { properties: "y"; to: dashContent.height; duration: UbuntuAnimation.SnapDuration }
131 PropertyAction { property: "ListView.delayRemove"; value: false }
134 removeDisplaced: Transition {
135 PropertyAnimation { property: "x"; duration: UbuntuAnimation.SnapDecision }
138 // If the number of items is less than the current index, then need to reset to another item.
141 if (currentIndex >= count) {
142 dashContent.setCurrentScopeAtIndex(count-1, true, true)
143 } else if (currentIndex < 0) {
144 // setting currentIndex directly, cause we don't want to loose set_current_index
145 dashContentList.currentIndex = 0
152 width: ListView.view.width
153 height: ListView.view.height
154 opacity: { // hide delegate if offscreen
155 var xPositionRelativetoView = ListView.view.contentX - x
156 return (xPositionRelativetoView > -width && xPositionRelativetoView < width) ? 1 : 0
159 source: "GenericScopeView.qml"
160 objectName: scope.id + " loader"
162 readonly property bool moving: item ? item.moving : false
163 readonly property bool navigationShown: item ? item.navigationShown : false
164 readonly property bool subPageShown: item ? item.subPageShown : false
165 readonly property var categoryView: item ? item.categoryView : null
166 readonly property var theScope: scope
168 // these are needed for autopilot tests
169 readonly property string scopeId: scope.id
170 readonly property bool isCurrent: ListView.isCurrentItem
171 readonly property bool isLoaded: status == Loader.Ready
174 item.objectName = scope.id
175 item.scope = Qt.binding(function() { return scope })
176 item.isCurrent = Qt.binding(function() { return visible && ListView.isCurrentItem })
177 dashContent.scopeLoaded(item.scope.id)
178 item.paginationCount = Qt.binding(function() { return dashContentList.count } )
179 item.paginationIndex = Qt.binding(function() { return dashContentList.currentIndex } )
182 target: isCurrent ? scope : null
184 // Note here scopeId is the signal parameter and not the loader property
185 dashContent.gotoScope(scopeId);
188 dashContent.openScope(scope);
193 onClosePreview: if (item) item.closePreview()
196 Component.onDestruction: active = false