git.iko.soy/unity8
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unity8/qml/Dash/GenericScopeView.qml
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1/*
2 * Copyright (C) 2013 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 */
17import QtQuick 2.0
18import Ubuntu.Components 0.1
19import Utils 0.1
20import Unity 0.2
21import "../Components"
22import "../Components/ListItems" as ListItems
24FocusScope {
25 id: scopeView
27 property Scope scope
28 property SortFilterProxyModel categories: categoryFilter
29 property bool isCurrent
30 property alias moving: categoryView.moving
31 property int tabBarHeight: 0
32 property PageHeader pageHeader: null
33 property OpenEffect openEffect: null
34 property Item previewListView: null
36 signal endReached
37 signal movementStarted
38 signal positionedAtBeginning
40 property bool enableHeightBehaviorOnNextCreation: false
41 property var categoryView: categoryView
43 // FIXME delay the search so that daemons have time to settle, note that
44 // removing this will break ScopeView::test_changeScope
45 onScopeChanged: {
46 if (scope) {
47 timer.restart();
48 scope.activateApplication.connect(activateApp);
49 }
50 }
52 function activateApp(appId) {
53 shell.activateApplication(appId);
54 }
56 Binding {
57 target: scope
58 property: "isActive"
59 value: isCurrent && !previewListView.onScreen
60 }
62 Timer {
63 id: timer
64 interval: 2000
65 onTriggered: scope.searchQuery = ""
66 }
68 SortFilterProxyModel {
69 id: categoryFilter
70 model: scope ? scope.categories : null
71 dynamicSortFilter: true
72 filterRole: Categories.RoleCount
73 filterRegExp: /^0$/
74 invertMatch: true
75 }
77 onIsCurrentChanged: {
78 pageHeader.resetSearch();
79 previewListView.open = false;
80 }
82 onMovementStarted: categoryView.showHeader()
84 onPositionedAtBeginning: categoryView.positionAtBeginning()
86 Binding {
87 target: scopeView.scope
88 property: "searchQuery"
89 value: pageHeader.searchQuery
90 when: isCurrent
91 }
93 Binding {
94 target: pageHeader
95 property: "searchQuery"
96 value: scopeView.scope.searchQuery
97 when: isCurrent
98 }
100 Connections {
101 target: panel
102 onSearchClicked: if (isCurrent) {
103 pageHeader.triggerSearch()
104 categoryView.showHeader()
105 }
106 }
108 Connections {
109 target: scopeView.scope
110 onShowDash: previewListView.open = false;
111 onHideDash: previewListView.open = false;
112 }
114 ScopeListView {
115 id: categoryView
116 objectName: "categoryListView"
117 anchors.fill: parent
118 model: scopeView.categories
119 forceNoClip: previewListView.onScreen
121 onAtYEndChanged: if (atYEnd) endReached()
122 onMovingChanged: if (moving && atYEnd) endReached()
124 property string expandedCategoryId: ""
125 signal correctExpandedCategory();
127 onContentYChanged: pageHeader.positionRealHeader();
128 onOriginYChanged: pageHeader.positionRealHeader();
129 onContentHeightChanged: pageHeader.positionRealHeader();
131 Behavior on contentY {
132 enabled: previewListView.open
133 UbuntuNumberAnimation {}
134 }
136 delegate: ListItems.Base {
137 id: baseItem
138 objectName: "dashCategory" + category
139 highlightWhenPressed: false
141 readonly property bool expandable: rendererLoader.item ? rendererLoader.item.expandable : false
142 readonly property bool filtered: rendererLoader.item ? rendererLoader.item.filter : true
143 readonly property string category: categoryId
144 readonly property var item: rendererLoader.item
146 Loader {
147 id: rendererLoader
148 anchors {
149 top: parent.top
150 left: parent.left
151 right: parent.right
152 }
154 source: getRenderer(model.renderer, results)
156 onLoaded: {
157 if (item.enableHeightBehavior !== undefined && item.enableHeightBehaviorOnNextCreation !== undefined) {
158 item.enableHeightBehavior = scopeView.enableHeightBehaviorOnNextCreation;
159 scopeView.enableHeightBehaviorOnNextCreation = false;
160 }
161 if (source.toString().indexOf("Apps/RunningApplicationsGrid.qml") != -1) {
162 // TODO: the running apps grid doesn't support standard scope results model yet
163 item.firstModel = Qt.binding(function() { return results.firstModel })
164 item.secondModel = Qt.binding(function() { return results.secondModel })
165 item.canEnableTerminationMode = Qt.binding(function() { return scopeView.isCurrent })
166 } else {
167 item.model = Qt.binding(function() { return results })
168 }
169 item.objectName = Qt.binding(function() { return categoryId })
170 if (item.expandable) {
171 var shouldFilter = categoryId != categoryView.expandedCategoryId;
172 if (shouldFilter != item.filter) {
173 item.filter = shouldFilter;
174 }
175 }
176 updateDelegateCreationRange();
177 // FIXME: should be "template", not "renderer"
178 item.template = Qt.binding(function() { return model.renderer });
179 item.components = Qt.binding(function() { return model.components });
180 }
182 Component.onDestruction: {
183 if (item.enableHeightBehavior !== undefined && item.enableHeightBehaviorOnNextCreation !== undefined) {
184 scopeView.enableHeightBehaviorOnNextCreation = item.enableHeightBehaviorOnNextCreation;
185 }
186 }
188 Connections {
189 target: rendererLoader.item
190 onClicked: {
191 // Prepare the preview in case activate() triggers a preview only
192 openEffect.positionPx = Math.max(mapToItem(categoryView, 0, itemY).y, pageHeader.height + categoryView.stickyHeaderHeight);
193 previewListView.categoryId = categoryId
194 previewListView.categoryDelegate = rendererLoader.item
195 previewListView.model = target.model;
196 previewListView.currentIndex = -1
197 previewListView.currentIndex = index;
199 var item = target.model.get(index);
201 if ((scopeView.scope.id == "applications.scope" && categoryId == "installed")
202 || (scopeView.scope.id == "home.scope" && categoryId == "applications.scope")) {
203 scopeView.scope.activate(item.result)
204 } else {
205 previewListView.open = true
206 }
207 }
208 onPressAndHold: {
209 openEffect.positionPx = Math.max(mapToItem(categoryView, 0, itemY).y, pageHeader.height + categoryView.stickyHeaderHeight);
210 previewListView.categoryId = categoryId
211 previewListView.categoryDelegate = rendererLoader.item
212 previewListView.model = target.model;
213 previewListView.currentIndex = -1
214 previewListView.currentIndex = index;
215 previewListView.open = true
216 }
217 }
218 Connections {
219 target: categoryView
220 onExpandedCategoryIdChanged: {
221 collapseAllButExpandedCategory();
222 }
223 onCorrectExpandedCategory: {
224 collapseAllButExpandedCategory();
225 }
226 function collapseAllButExpandedCategory() {
227 var item = rendererLoader.item;
228 if (item.expandable) {
229 var shouldFilter = categoryId != categoryView.expandedCategoryId;
230 if (shouldFilter != item.filter) {
231 // If the filter animation will be seen start it, otherwise, just flip the switch
232 var shrinkingVisible = shouldFilter && y + item.collapsedHeight < categoryView.height;
233 var growingVisible = !shouldFilter && y + height < categoryView.height;
234 if (!previewListView.open || !shouldFilter) {
235 if (shrinkingVisible || growingVisible) {
236 item.startFilterAnimation(shouldFilter)
237 } else {
238 item.filter = shouldFilter;
239 }
240 if (!shouldFilter && !previewListView.open) {
241 categoryView.maximizeVisibleArea(index, item.uncollapsedHeight);
242 }
243 }
244 }
245 }
246 }
247 onOriginYChanged: rendererLoader.updateDelegateCreationRange();
248 onContentYChanged: rendererLoader.updateDelegateCreationRange();
249 onHeightChanged: rendererLoader.updateDelegateCreationRange();
250 onContentHeightChanged: rendererLoader.updateDelegateCreationRange();
251 }
253 function updateDelegateCreationRange() {
254 // Do not update the range if we are overshooting up or down, since we'll come back
255 // to the stable position and delete/create items without any reason
256 if (categoryView.contentY < categoryView.originY) {
257 return;
258 } else if (categoryView.contentY + categoryView.height > categoryView.contentHeight) {
259 return;
260 }
262 if (item && item.hasOwnProperty("delegateCreationBegin")) {
263 if (baseItem.y + baseItem.height <= 0) {
264 // Not visible (item at top of the list)
265 item.delegateCreationBegin = baseItem.height
266 item.delegateCreationEnd = baseItem.height
267 } else if (baseItem.y >= categoryView.height) {
268 // Not visible (item at bottom of the list)
269 item.delegateCreationBegin = 0
270 item.delegateCreationEnd = 0
271 } else {
272 item.delegateCreationBegin = Math.max(-baseItem.y, 0)
273 item.delegateCreationEnd = Math.min(categoryView.height + item.delegateCreationBegin, baseItem.height)
274 }
275 }
276 }
277 }
279 onHeightChanged: rendererLoader.updateDelegateCreationRange();
280 onYChanged: rendererLoader.updateDelegateCreationRange();
281 }
283 sectionProperty: "name"
284 sectionDelegate: ListItems.Header {
285 objectName: "dashSectionHeader" + delegate.category
286 property var delegate: categoryView.item(delegateIndex)
287 width: categoryView.width
288 text: section
289 image: {
290 if (delegate && delegate.expandable)
291 return delegate.filtered ? "graphics/header_handlearrow.png" : "graphics/header_handlearrow2.png"
292 return "";
293 }
294 onClicked: {
295 if (categoryView.expandedCategoryId != delegate.category)
296 categoryView.expandedCategoryId = delegate.category;
297 else
298 categoryView.expandedCategoryId = "";
299 }
300 }
301 pageHeader: Item {
302 implicitHeight: scopeView.tabBarHeight
303 onHeightChanged: {
304 if (scopeView.pageHeader) {
305 scopeView.pageHeader.height = height;
306 }
307 }
308 onYChanged: positionRealHeader();
310 function positionRealHeader() {
311 if (scopeView.pageHeader) {
312 scopeView.pageHeader.y = y + parent.y;
313 }
314 }
315 }
316 }
318 function getRenderer(template, results) {
319 var layout = template["category-layout"];
321 if (layout === "carousel") {
322 // TODO: Selectively disable carousel, 4 is fixed for now, should change depending on form factor
323 if (results.count <= 4) layout = "grid";
324 }
325 switch (layout) {
326 case "carousel": return "CardCarousel.qml";
327 case "grid":
328 default: return "CardFilterGrid.qml";
329 }
330 }
332 // TODO: Move as InverseMouseArea to DashPreview
333 MouseArea {
334 objectName: "closePreviewMouseArea"
335 enabled: previewListView.onScreen
336 anchors {
337 fill: parent
338 topMargin: openEffect.bottomGapPx
339 }
340 onClicked: {
341 previewListView.open = false;
342 }
343 }