2 * Copyright 2014 Canonical Ltd.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 * Authors: Michael Zanetti <michael.zanetti@canonical.com>
21 import Ubuntu.Components 1.3
22 import Unity.Application 0.1
27 // Set this to true when this tile is selected in the spread. The animation will change to bring the tile to front.
28 property bool selected: false
29 // Set this to true when another tile in the spread is selected. The animation will change to fade this tile out.
30 property bool otherSelected: false
31 // Set this to true when this tile a currently active on either the MS or the SS.
32 property bool active: false
35 property real progress: 0
36 property real animatedProgress: 0
38 property real startDistance: units.gu(5)
39 property real endDistance: units.gu(.5)
41 property real startScale: 1.1
42 property real endScale: 0.7
43 property real dragStartScale: startScale + .2
45 property real startAngle: 15
46 property real endAngle: 5
48 property bool isInSideStage: false
50 property int stage: ApplicationInfoInterface.MainStage
52 property int dragOffset: 0
53 readonly property alias xTranslateAnimating: xTranslateAnimation.running
54 readonly property bool offScreen: priv.xTranslate >= 0
56 dropShadow: spreadView.active ||
58 && (root.stage == ApplicationInfoInterface.MainStage || !priv.shellIsLandscape)
59 && priv.xTranslate != 0)
65 priv.isSelected = selected;
68 onOtherSelectedChanged: {
72 priv.otherSelected = otherSelected;
79 if (spreadView.phase == 1) {
80 var phase2Progress = spreadView.positionMarker4 - (root.zIndex * spreadView.tileDistance / spreadView.width);
81 priv.phase2StartTranslate = priv.easingAnimation(0, 1, 0, -spreadView.width + (root.zIndex * root.endDistance), phase2Progress);
82 priv.phase2StartScale = priv.easingAnimation(0, 1, root.startScale, root.endScale, phase2Progress);
83 priv.phase2StartAngle = priv.easingAnimation(0, 1, root.startAngle, root.endAngle, phase2Progress);
84 priv.phase2StartTopMarginProgress = priv.easingAnimation(0, 1, 0, 1, phase2Progress);
89 // Required to be an item because we're using states on it.
93 // true if this is the next tile on the stack that comes in when dragging from the right
94 property bool nextInStack: spreadView.nextInStack == model.index
95 // true if the next tile in the stack is the nextInStack one. This one will be moved a bit to the left
96 property bool movedActive: spreadView.nextZInStack == zIndex + 1
97 property real animatedEndDistance: linearAnimation(0, 2, root.endDistance, 0, root.progress)
99 property real phase2StartTranslate
100 property real phase2StartScale
101 property real phase2StartAngle
102 property real phase2StartTopMarginProgress
104 property bool isSelected: false
105 property bool otherSelected: false
106 property real selectedProgress
107 property real selectedXTranslate
108 property real selectedAngle
109 property real selectedScale
110 property real selectedOpacity
111 property real selectedTopMarginProgress
113 function snapshot() {
114 selectedProgress = root.progress;
115 selectedXTranslate = xTranslate;
116 selectedAngle = angle;
117 selectedScale = priv.scale;
118 selectedOpacity = priv.opacityTransform;
119 selectedTopMarginProgress = topMarginProgress;
122 // This calculates how much negative progress there can be if unwinding the spread completely
123 // the progress for each tile starts at 0 when it crosses the right edge, so the later a tile comes in,
124 // the bigger its negativeProgress can be.
125 property real negativeProgress: {
126 if (nextInStack && spreadView.phase < 2) {
129 return -root.zIndex * spreadView.tileDistance / spreadView.width;
132 function linearAnimation(startProgress, endProgress, startValue, endValue, progress) {
133 // progress : progressDiff = value : valueDiff => value = progress * valueDiff / progressDiff
134 return (progress - startProgress) * (endValue - startValue) / (endProgress - startProgress) + startValue;
137 function easingAnimation(startProgress, endProgress, startValue, endValue, progress) {
138 helperEasingCurve.progress = progress - startProgress;
139 helperEasingCurve.period = endProgress - startProgress;
140 return helperEasingCurve.value * (endValue - startValue) + startValue;
143 Behavior on xTranslate {
144 enabled: !spreadView.active &&
145 !snapAnimation.running &&
146 root.application.appId !== "unity8-dash" &&
147 spreadView.animateX &&
148 !spreadView.beingResized &&
149 priv.state !== "sideStage"
150 UbuntuNumberAnimation {
151 id: xTranslateAnimation
152 duration: UbuntuAnimation.FastDuration
156 property real xTranslate: {
157 var newTranslate = 0;
159 // selected app or opposite stage active app.
160 if (isSelected || (otherSelected && root.active && spreadView.selectedDelegate
161 && spreadView.selectedDelegate.stage !== root.stage)) {
162 if (root.stage == ApplicationInfoInterface.MainStage) {
163 return linearAnimation(selectedProgress, negativeProgress, selectedXTranslate, -spreadView.width, root.progress);
165 return linearAnimation(selectedProgress, negativeProgress, selectedXTranslate, -spreadView.sideStageWidth, root.progress);
167 } else if (otherSelected) {
168 return selectedXTranslate;
171 // The tile should move a bit to the left if a new one comes on top of it, but not for the Side Stage and not
172 // when we're only dragging the side stage in on top of a main stage app
173 var shouldMoveAway = spreadView.nextInStack >= 0 && priv.movedActive && root.stage === ApplicationInfoInterface.MainStage &&
174 topLevelSurfaceList.applicationAt(spreadView.nextInStack).stage === ApplicationInfoInterface.MainStage;
177 newTranslate -= root.width
178 // Only do the hide animation for active apps in the mainstage, and not if we only drag the ss in
179 if (spreadView.phase == 0 && shouldMoveAway) {
180 newTranslate += linearAnimation(0, spreadView.positionMarker2, 0, -units.gu(4), root.animatedProgress);
182 newTranslate += root.dragOffset;
183 } else if (!spreadView.active && root.application.appId == "unity8-dash") {
184 newTranslate -= root.width;
187 if (!spreadView.active) {
191 var shadowOffset = units.gu(2);
193 if (spreadView.phase == 0) {
195 if (root.stage == ApplicationInfoInterface.MainStage) {
196 if (spreadView.sideStageVisible && root.progress > 0) {
197 // Move it so it appears from behind the side stage immediately
198 newTranslate += -spreadView.sideStageWidth;
202 if (root.stage == ApplicationInfoInterface.SideStage && !spreadView.sideStageVisible) {
203 // This is when we only drag the side stage in, without rotation or snapping
204 newTranslate = linearAnimation(0, spreadView.positionMarker2, 0, -spreadView.sideStageWidth, root.animatedProgress);
206 newTranslate += linearAnimation(0, spreadView.positionMarker2, 0, -spreadView.sideStageWidth * spreadView.snapPosition, root.animatedProgress);
208 } else if (!root.active) {
209 newTranslate += shadowOffset;
213 if (spreadView.phase == 1) {
215 if (root.stage == ApplicationInfoInterface.MainStage) {
216 var startValue = -spreadView.sideStageWidth * spreadView.snapPosition + (spreadView.sideStageVisible ? -spreadView.sideStageWidth : 0);
217 newTranslate += linearAnimation(spreadView.positionMarker2, spreadView.positionMarker4, startValue, priv.phase2StartTranslate, root.animatedProgress);
219 var endValue = -spreadView.width + spreadView.width * root.zIndex / 6;
220 if (!spreadView.sideStageVisible) {
221 newTranslate += linearAnimation(spreadView.positionMarker2, spreadView.positionMarker4, -spreadView.sideStageWidth, priv.phase2StartTranslate, root.animatedProgress);
223 newTranslate += linearAnimation(spreadView.positionMarker2, spreadView.positionMarker4, -spreadView.sideStageWidth * spreadView.snapPosition, priv.phase2StartTranslate, root.animatedProgress);
226 } else if (root.active) {
227 var startProgress = spreadView.positionMarker2 - (zIndex * spreadView.positionMarker2 / 2);
228 var endProgress = spreadView.positionMarker4 - (zIndex * spreadView.tileDistance / spreadView.width);
229 var startTranslate = -root.width + (shouldMoveAway ? -units.gu(4) : 0);
230 newTranslate = linearAnimation(startProgress, endProgress, startTranslate, priv.phase2StartTranslate, root.animatedProgress);
232 var startProgress = spreadView.positionMarker2 - (zIndex * spreadView.positionMarker2 / 2);
233 var endProgress = spreadView.positionMarker4 - (zIndex * spreadView.tileDistance / spreadView.width);
234 newTranslate = linearAnimation(startProgress, endProgress, shadowOffset * Math.max(0, zIndex-2), priv.phase2StartTranslate, root.animatedProgress);
238 if (spreadView.phase == 2) {
239 if (easingCurve.value == 0 && !nextInStack) {
240 newTranslate = shadowOffset;
242 newTranslate = -easingCurve.value * (spreadView.width - root.zIndex * animatedEndDistance);
249 property real scale: {
250 if (!spreadView.active) {
254 // selected app or opposite stage active app.
255 if (isSelected || (otherSelected && root.active && spreadView.selectedDelegate
256 && spreadView.selectedDelegate.stage !== root.stage)) {
257 return linearAnimation(selectedProgress, negativeProgress, selectedScale, 1, root.progress);
258 } else if (otherSelected) {
259 return selectedScale;
262 if (spreadView.phase == 0) {
264 if (root.stage == ApplicationInfoInterface.SideStage && !spreadView.sideStageVisible) {
267 var targetScale = root.dragStartScale - ((root.dragStartScale - 1) * spreadView.snapPosition);
268 return linearAnimation(0, spreadView.positionMarker2, root.dragStartScale, targetScale, root.animatedProgress);
275 if (spreadView.phase == 1) {
278 if (root.stage !== ApplicationInfoInterface.SideStage || spreadView.sideStageVisible) {
279 startScale = root.dragStartScale - ((root.dragStartScale - 1) * spreadView.snapPosition);
281 return linearAnimation(spreadView.positionMarker2, spreadView.positionMarker4, startScale, priv.phase2StartScale, root.animatedProgress);
283 var startProgress = spreadView.positionMarker2 - (zIndex * spreadView.positionMarker2 / 2);
284 var endProgress = spreadView.positionMarker4 - (zIndex * spreadView.tileDistance / spreadView.width);
285 return linearAnimation(startProgress, endProgress, 1, priv.phase2StartScale, root.animatedProgress);
288 if (spreadView.phase == 2) {
289 return root.startScale - easingCurve.value * (root.startScale - root.endScale);
295 property real angle: {
296 if (!spreadView.active) {
300 // selected app or opposite stage active app.
301 if (isSelected || (otherSelected && root.active && spreadView.selectedDelegate
302 && spreadView.selectedDelegate.stage !== root.stage)) {
303 return linearAnimation(selectedProgress, negativeProgress, selectedAngle, 0, root.progress);
304 } else if (otherSelected) {
305 return selectedAngle;
308 // The tile should rotate a bit when another one comes on top, but not when only dragging the side stage in
309 var shouldMoveAway = spreadView.nextInStack == -1 ||
310 spreadView.nextInStack >= 0 && priv.movedActive &&
311 (topLevelSurfaceList.applicationAt(spreadView.nextInStack).stage === ApplicationInfoInterface.MainStage ||
312 root.stage == ApplicationInfoInterface.SideStage);
314 if (spreadView.phase == 0) {
316 if (root.stage == ApplicationInfoInterface.SideStage && !spreadView.sideStageVisible) {
319 return linearAnimation(0, spreadView.positionMarker2, root.startAngle, root.startAngle * (1-spreadView.snapPosition), root.animatedProgress);
322 if (shouldMoveAway) {
323 return linearAnimation(0, spreadView.positionMarker2, 0, root.startAngle * (1-spreadView.snapPosition), root.animatedProgress);
326 if (spreadView.phase == 1) {
328 if (root.stage == ApplicationInfoInterface.SideStage && !spreadView.sideStageVisible) {
329 return linearAnimation(spreadView.positionMarker2, spreadView.positionMarker4, 0, priv.phase2StartAngle, root.animatedProgress);
331 return linearAnimation(spreadView.positionMarker2, spreadView.positionMarker4, root.startAngle * (1-spreadView.snapPosition), priv.phase2StartAngle, root.animatedProgress);
334 var startProgress = spreadView.positionMarker2 - (zIndex * spreadView.positionMarker2 / 2);
335 var endProgress = spreadView.positionMarker4 - (zIndex * spreadView.tileDistance / spreadView.width);
336 var startAngle = shouldMoveAway ? root.startAngle * (1-spreadView.snapPosition) : 0;
337 return linearAnimation(startProgress, endProgress, startAngle, priv.phase2StartAngle, root.progress);
339 if (spreadView.phase == 2) {
340 return root.startAngle - easingCurve.value * (root.startAngle - root.endAngle);
346 property real opacityTransform: {
347 // animate opacity for items not snapping into view.
348 if (spreadView.phase !== 2) return 1;
349 if (root.isSelected) return 1;
352 if (root.active && spreadView.selectedDelegate
353 && spreadView.selectedDelegate.stage !== root.stage) {
356 return linearAnimation(selectedProgress, negativeProgress, selectedOpacity, 0, root.progress);
361 property real topMarginProgress: {
362 // selected app or opposite stage active app.
363 if (isSelected || (otherSelected && root.active && spreadView.selectedDelegate
364 && spreadView.selectedDelegate.stage !== root.stage)) {
365 return linearAnimation(selectedProgress, negativeProgress, selectedTopMarginProgress, 0, root.progress);
368 if (spreadView.phase == 0) {
370 } else if (spreadView.phase == 1) {
372 return linearAnimation(spreadView.positionMarker2, spreadView.positionMarker4,
373 0, 1, root.progress);
375 var startProgress = spreadView.positionMarker2 - (zIndex * spreadView.positionMarker2 / 2);
376 var endProgress = spreadView.positionMarker4 - (zIndex * spreadView.tileDistance / spreadView.width);
377 return linearAnimation(startProgress, endProgress, 0, 1, root.progress);
385 when: root.isInSideStage && spreadView.shiftedContentX == 0 && spreadView.phase == 0
388 xTranslate: -spreadView.sideStageWidth + spreadView.sideStageWidth * (1-sideStage.progress)
396 origin { x: 0; y: spreadView.height / 2 }
397 axis { x: 0; y: 1; z: 0 }
401 origin { x: 0; y: spreadView.height / 2 }
406 origin { x: 0; y: (spreadView.height * priv.scale) + maximizedAppTopMargin * 3 }
408 yScale: fullscreen ? 1 - priv.topMarginProgress * maximizedAppTopMargin / spreadView.height : 1
414 opacity: priv.opacityTransform
416 UbuntuNumberAnimation {
417 id: fadeBackInAnimation
420 duration: UbuntuAnimation.SlowDuration
427 type: EasingCurve.OutSine
429 progress: root.progress
433 id: helperEasingCurve
434 type: easingCurve.type
435 period: easingCurve.period