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
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.init = true;
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
207 scopeView.scope.preview(item.result)
208 }
209 }
210 onPressAndHold: {
211 openEffect.positionPx = Math.max(mapToItem(categoryView, 0, itemY).y, pageHeader.height + categoryView.stickyHeaderHeight);
212 previewListView.categoryId = categoryId
213 previewListView.categoryDelegate = rendererLoader.item
214 previewListView.model = target.model;
215 previewListView.init = true;
216 previewListView.currentIndex = index;
217 previewListView.open = true
219 var item = target.model.get(index)
220 scopeView.scope.preview(item.uri, item.icon, item.category, 0, item.mimetype, item.title,
221 item.comment, item.dndUri, item.metadata)
222 }
223 }
224 Connections {
225 target: categoryView
226 onExpandedCategoryIdChanged: {
227 collapseAllButExpandedCategory();
228 }
229 onCorrectExpandedCategory: {
230 collapseAllButExpandedCategory();
231 }
232 function collapseAllButExpandedCategory() {
233 var item = rendererLoader.item;
234 if (item.expandable) {
235 var shouldFilter = categoryId != categoryView.expandedCategoryId;
236 if (shouldFilter != item.filter) {
237 // If the filter animation will be seen start it, otherwise, just flip the switch
238 var shrinkingVisible = shouldFilter && y + item.collapsedHeight < categoryView.height;
239 var growingVisible = !shouldFilter && y + height < categoryView.height;
240 if (!previewListView.open || !shouldFilter) {
241 if (shrinkingVisible || growingVisible) {
242 item.startFilterAnimation(shouldFilter)
243 } else {
244 item.filter = shouldFilter;
245 }
246 if (!shouldFilter && !previewListView.open) {
247 categoryView.maximizeVisibleArea(index, item.uncollapsedHeight);
248 }
249 }
250 }
251 }
252 }
253 onOriginYChanged: rendererLoader.updateDelegateCreationRange();
254 onContentYChanged: rendererLoader.updateDelegateCreationRange();
255 onHeightChanged: rendererLoader.updateDelegateCreationRange();
256 onContentHeightChanged: rendererLoader.updateDelegateCreationRange();
257 }
259 function updateDelegateCreationRange() {
260 // Do not update the range if we are overshooting up or down, since we'll come back
261 // to the stable position and delete/create items without any reason
262 if (categoryView.contentY < categoryView.originY) {
263 return;
264 } else if (categoryView.contentY + categoryView.height > categoryView.contentHeight) {
265 return;
266 }
268 if (item && item.hasOwnProperty("delegateCreationBegin")) {
269 if (baseItem.y + baseItem.height <= 0) {
270 // Not visible (item at top of the list)
271 item.delegateCreationBegin = baseItem.height
272 item.delegateCreationEnd = baseItem.height
273 } else if (baseItem.y >= categoryView.height) {
274 // Not visible (item at bottom of the list)
275 item.delegateCreationBegin = 0
276 item.delegateCreationEnd = 0
277 } else {
278 item.delegateCreationBegin = Math.max(-baseItem.y, 0)
279 item.delegateCreationEnd = Math.min(categoryView.height + item.delegateCreationBegin, baseItem.height)
280 }
281 }
282 }
283 }
285 onHeightChanged: rendererLoader.updateDelegateCreationRange();
286 onYChanged: rendererLoader.updateDelegateCreationRange();
287 }
289 sectionProperty: "name"
290 sectionDelegate: ListItems.Header {
291 objectName: "dashSectionHeader" + delegate.category
292 property var delegate: categoryView.item(delegateIndex)
293 width: categoryView.width
294 text: section
295 image: {
296 if (delegate && delegate.expandable)
297 return delegate.filtered ? "graphics/header_handlearrow.png" : "graphics/header_handlearrow2.png"
298 return "";
299 }
300 onClicked: {
301 if (categoryView.expandedCategoryId != delegate.category)
302 categoryView.expandedCategoryId = delegate.category;
303 else
304 categoryView.expandedCategoryId = "";
305 }
306 }
307 pageHeader: Item {
308 implicitHeight: scopeView.tabBarHeight
309 onHeightChanged: {
310 if (scopeView.pageHeader) {
311 scopeView.pageHeader.height = height;
312 }
313 }
314 onYChanged: positionRealHeader();
316 function positionRealHeader() {
317 if (scopeView.pageHeader) {
318 scopeView.pageHeader.y = y + parent.y;
319 }
320 }
321 }
322 }
324 function getRenderer(template, results) {
325 var layout = template["category-layout"];
327 if (layout === "carousel") {
328 // TODO: Selectively disable carousel, 4 is fixed for now, should change depending on form factor
329 if (results.count <= 4) layout = "grid";
330 }
331 switch (layout) {
332 case "carousel": return "CardCarousel.qml";
333 case "grid":
334 default: return "CardFilterGrid.qml";
335 }
336 }
338 Connections {
339 target: scopeView.scope
340 onPreviewReady: {
341 if (previewListView.init) {
342 // Preview was triggered because of a click on the item. Need to expand now.
343 if (!previewListView.open) {
344 previewListView.open = true
345 }
347 var index = previewListView.currentIndex
348 previewListView.currentIndex = -1
349 previewListView.currentIndex = index
350 previewListView.init = false
351 }
352 previewListView.currentItem.previewData = preview
353 }
354 }
356 // TODO: Move as InverseMouseArea to DashPreview
357 MouseArea {
358 objectName: "closePreviewMouseArea"
359 enabled: previewListView.onScreen
360 anchors {
361 fill: parent
362 topMargin: openEffect.bottomGapPx
363 }
364 onClicked: {
365 previewListView.open = false;
366 }
367 }