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unity8/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 0.1
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
39 signal headerPositionChanged(int position)
40 signal headerHeightChanged(int height)
42 property bool enableHeightBehaviorOnNextCreation: false
43 property var categoryView: categoryView
45 // FIXME delay the search so that daemons have time to settle, note that
46 // removing this will break ScopeView::test_changeScope
47 onScopeChanged: {
48 if (scope) {
49 timer.restart();
50 scope.activateApplication.connect(activateApp);
51 }
52 }
54 function activateApp(desktopFilePath) {
55 shell.activateApplication(desktopFilePath);
56 }
58 Binding {
59 target: scope
60 property: "isActive"
61 value: isCurrent
62 }
64 Timer {
65 id: timer
66 interval: 2000
67 onTriggered: scope.searchQuery = ""
68 }
70 SortFilterProxyModel {
71 id: categoryFilter
72 model: scope ? scope.categories : null
73 dynamicSortFilter: true
74 filterRole: Categories.RoleCount
75 filterRegExp: /^0$/
76 invertMatch: true
77 }
79 onIsCurrentChanged: {
80 pageHeader.resetSearch();
81 previewListView.open = false;
82 }
84 onMovementStarted: categoryView.showHeader()
86 onPositionedAtBeginning: categoryView.positionAtBeginning()
88 Binding {
89 target: scopeView.scope
90 property: "searchQuery"
91 value: pageHeader.searchQuery
92 when: isCurrent
93 }
95 Binding {
96 target: pageHeader
97 property: "searchQuery"
98 value: scopeView.scope.searchQuery
99 when: isCurrent
100 }
102 Connections {
103 target: panel
104 onSearchClicked: if (isCurrent) {
105 pageHeader.triggerSearch()
106 categoryView.showHeader()
107 }
108 }
110 Connections {
111 target: scopeView.scope
112 onShowDash: previewListView.open = false;
113 onHideDash: previewListView.open = false;
114 }
116 ScopeListView {
117 id: categoryView
118 objectName: "categoryListView"
119 anchors.fill: parent
120 model: scopeView.categories
121 forceNoClip: previewListView.onScreen
123 onAtYEndChanged: if (atYEnd) endReached()
124 onMovingChanged: if (moving && atYEnd) endReached()
126 property string expandedCategoryId: ""
127 signal correctExpandedCategory();
129 onContentYChanged: pageHeader.positionRealHeader();
130 onOriginYChanged: pageHeader.positionRealHeader();
131 onContentHeightChanged: pageHeader.positionRealHeader();
133 Behavior on contentY {
134 enabled: previewListView.open
135 UbuntuNumberAnimation {}
136 }
138 delegate: ListItems.Base {
139 id: baseItem
140 highlightWhenPressed: false
142 readonly property bool expandable: rendererLoader.item ? rendererLoader.item.expandable : false
143 readonly property bool filtered: rendererLoader.item ? rendererLoader.item.filter : true
144 readonly property string category: categoryId
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, model.contentType, model.rendererHint)
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 }
179 Component.onDestruction: {
180 if (item.enableHeightBehavior !== undefined && item.enableHeightBehaviorOnNextCreation !== undefined) {
181 scopeView.enableHeightBehaviorOnNextCreation = item.enableHeightBehaviorOnNextCreation;
182 }
183 }
185 Connections {
186 target: rendererLoader.item
187 onClicked: {
188 // Prepare the preview in case activate() triggers a preview only
189 openEffect.positionPx = Math.max(mapToItem(categoryView, 0, itemY).y, pageHeader.height + categoryView.stickyHeaderHeight);
190 previewListView.categoryId = categoryId
191 previewListView.categoryDelegate = rendererLoader.item
192 previewListView.model = target.model;
193 previewListView.init = true;
194 previewListView.currentIndex = index;
196 var item = target.model.get(index);
198 if ((scopeView.scope.id == "applications.scope" && categoryId == "installed")
199 || (scopeView.scope.id == "home.scope" && categoryId == "applications.scope")) {
200 scopeView.scope.activate(item.uri, item.icon, item.category, 0, item.mimetype, item.title,
201 item.comment, item.dndUri, item.metadata)
202 } else {
203 previewListView.open = true
205 scopeView.scope.preview( item.uri, item.icon, item.category, 0, item.mimetype, item.title,
206 item.comment, item.dndUri, item.metadata)
207 }
208 }
209 onPressAndHold: {
210 openEffect.positionPx = Math.max(mapToItem(categoryView, 0, itemY).y, pageHeader.height + categoryView.stickyHeaderHeight);
211 previewListView.categoryId = categoryId
212 previewListView.categoryDelegate = rendererLoader.item
213 previewListView.model = target.model;
214 previewListView.init = true;
215 previewListView.currentIndex = index;
216 previewListView.open = true
218 var item = target.model.get(index)
219 scopeView.scope.preview( item.uri, item.icon, item.category, 0, item.mimetype, item.title,
220 item.comment, item.dndUri, item.metadata)
221 }
222 }
223 Connections {
224 target: categoryView
225 onExpandedCategoryIdChanged: {
226 collapseAllButExpandedCategory();
227 }
228 onCorrectExpandedCategory: {
229 collapseAllButExpandedCategory();
230 }
231 function collapseAllButExpandedCategory() {
232 var item = rendererLoader.item;
233 if (item.expandable) {
234 var shouldFilter = categoryId != categoryView.expandedCategoryId;
235 if (shouldFilter != item.filter) {
236 // If the filter animation will be seen start it, otherwise, just flip the switch
237 var shrinkingVisible = shouldFilter && y + item.collapsedHeight < categoryView.height;
238 var growingVisible = !shouldFilter && y + height < categoryView.height;
239 if (!previewListView.open || !shouldFilter) {
240 if (shrinkingVisible || growingVisible) {
241 item.startFilterAnimation(shouldFilter)
242 } else {
243 item.filter = shouldFilter;
244 }
245 if (!shouldFilter && !previewListView.open) {
246 categoryView.maximizeVisibleArea(index, item.uncollapsedHeight);
247 }
248 }
249 }
250 }
251 }
252 onContentYChanged: rendererLoader.updateDelegateCreationRange();
253 onHeightChanged: rendererLoader.updateDelegateCreationRange();
254 }
256 function updateDelegateCreationRange() {
257 // Do not update the range if we are overshooting up or down, since we'll come back
258 // to the stable position and delete/create items without any reason
259 if (categoryView.contentY < categoryView.originY) {
260 return;
261 } else if (categoryView.contentY + categoryView.height > categoryView.contentHeight) {
262 return;
263 }
265 if (item.hasOwnProperty("delegateCreationBegin")) {
266 if (baseItem.y + baseItem.height <= 0) {
267 // Not visible (item at top of the list)
268 item.delegateCreationBegin = baseItem.height
269 item.delegateCreationEnd = baseItem.height
270 } else if (baseItem.y >= categoryView.height) {
271 // Not visible (item at bottom of the list)
272 item.delegateCreationBegin = 0
273 item.delegateCreationEnd = 0
274 } else {
275 item.delegateCreationBegin = Math.max(-baseItem.y, 0)
276 item.delegateCreationEnd = Math.min(categoryView.height + item.delegateCreationBegin, baseItem.height)
277 }
278 }
279 }
280 }
281 }
283 sectionProperty: "name"
284 sectionDelegate: ListItems.Header {
285 property var delegate: categoryView.item(delegateIndex)
286 width: categoryView.width
287 text: section
288 image: {
289 if (delegate && delegate.expandable)
290 return delegate.filtered ? "graphics/header_handlearrow.png" : "graphics/header_handlearrow2.png"
291 return "";
292 }
293 onClicked: {
294 if (categoryView.expandedCategoryId != delegate.category)
295 categoryView.expandedCategoryId = delegate.category;
296 else
297 categoryView.expandedCategoryId = "";
298 }
299 }
300 pageHeader: Item {
301 implicitHeight: scopeView.tabBarHeight
302 onHeightChanged: scopeView.headerHeightChanged(height)
303 onYChanged: positionRealHeader();
305 function positionRealHeader() {
306 scopeView.headerPositionChanged(y + parent.y)
307 }
308 }
309 }
311 function getDefaultRendererId(contentType) {
312 switch (contentType) {
313 default: return "grid";
314 }
315 }
317 function getRenderer(rendererId, contentType, rendererHint) {
318 if (rendererId == "default") {
319 rendererId = getDefaultRendererId(contentType);
320 }
321 switch (rendererId) {
322 case "carousel": {
323 switch (contentType) {
324 case "music": return "Music/MusicCarouselLoader.qml";
325 case "video": return "Video/VideoCarouselLoader.qml";
326 default: return "Generic/GenericCarouselLoader.qml";
327 }
328 }
329 case "grid": {
330 switch (contentType) {
331 case "apps": {
332 if (rendererHint == "toggled")
333 return "Apps/DashPluginFilterGrid.qml";
334 else
335 return "Generic/GenericFilterGrid.qml";
336 }
337 case "music": return "Music/MusicFilterGrid.qml";
338 case "video": return "Video/VideoFilterGrid.qml";
339 case "weather": return "Generic/WeatherFilterGrid.qml";
340 default: return "Generic/GenericFilterGrid.qml";
341 }
342 }
343 case "special": {
344 switch (contentType) {
345 case "apps": return "Apps/RunningApplicationsGrid.qml";
346 default: return "Generic/GenericFilterGrid.qml";
347 }
348 }
349 default: return "Generic/GenericFilterGrid.qml";
350 }
351 }
353 Connections {
354 target: scopeView.scope
355 onPreviewReady: {
356 if (previewListView.init) {
357 // Preview was triggered because of a click on the item. Need to expand now.
358 if (!previewListView.open) {
359 previewListView.open = true
360 }
362 var index = previewListView.currentIndex
363 previewListView.currentIndex = -1
364 previewListView.currentIndex = index
365 previewListView.init = false
366 }
367 previewListView.currentItem.previewData = preview
368 }
369 }
371 // TODO: Move as InverseMouseArea to DashPreview
372 MouseArea {
373 objectName: "closePreviewMouseArea"
374 enabled: previewListView.onScreen
375 anchors {
376 fill: parent
377 topMargin: openEffect.bottomGapPx
378 }
379 onClicked: {
380 previewListView.open = false;
381 }
382 }