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/*
* Copyright 2014 Canonical Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Michael Zanetti <michael.zanetti@canonical.com>
*/
import QtQuick 2.0
import Utils 0.1
import Ubuntu.Components 0.1
import Unity.Application 0.1
SpreadDelegate {
id: root
// Set this to true when this tile is selected in the spread. The animation will change to bring the tile to front.
property bool selected: false
// Set this to true when another tile in the spread is selected. The animation will change to fade this tile out.
property bool otherSelected: false
// Set this to true when this tile a currently active on either the MS or the SS.
property bool active: false
property int zIndex
property real progress: 0
property real animatedProgress: 0
property real startDistance: units.gu(5)
property real endDistance: units.gu(.5)
property real startScale: 1.1
property real endScale: 0.7
property real dragStartScale: startScale + .2
property real startAngle: 15
property real endAngle: 5
property bool isInSideStage: false
property int dragOffset: 0
dropShadow: spreadView.active ||
(active && model.stage == ApplicationInfoInterface.MainStage && priv.xTranslate != 0)
onSelectedChanged: {
if (selected) {
priv.snapshot();
}
priv.isSelected = selected;
}
onOtherSelectedChanged: {
if (otherSelected) {
priv.snapshot();
}
priv.otherSelected = otherSelected;
}
Connections {
target: spreadView
onPhaseChanged: {
if (spreadView.phase == 1) {
var phase2Progress = spreadView.positionMarker4 - (root.zIndex * spreadView.tileDistance / spreadView.width);
priv.phase2StartTranslate = priv.easingAnimation(0, 1, 0, -spreadView.width + (root.zIndex * root.endDistance), phase2Progress);
priv.phase2StartScale = priv.easingAnimation(0, 1, root.startScale, root.endScale, phase2Progress);
priv.phase2StartAngle = priv.easingAnimation(0, 1, root.startAngle, root.endAngle, phase2Progress);
priv.phase2StartTopMarginProgress = priv.easingAnimation(0, 1, 0, 1, phase2Progress);
}
}
}
// Required to be an item because we're using states on it.
Item {
id: priv
// true if this is the next tile on the stack that comes in when dragging from the right
property bool nextInStack: spreadView.nextZInStack == zIndex
// true if the next tile in the stack is the nextInStack one. This one will be moved a bit to the left
property bool movedActive: spreadView.nextZInStack == zIndex + 1
property real animatedEndDistance: linearAnimation(0, 2, root.endDistance, 0, root.progress)
property real phase2StartTranslate
property real phase2StartScale
property real phase2StartAngle
property real phase2StartTopMarginProgress
property bool isSelected: false
property bool otherSelected: false
property real selectedProgress
property real selectedXTranslate
property real selectedAngle
property real selectedScale
property real selectedOpacity
property real selectedTopMarginProgress
function snapshot() {
selectedProgress = root.progress;
selectedXTranslate = xTranslate;
selectedAngle = angle;
selectedScale = priv.scale;
selectedOpacity = priv.opacityTransform;
selectedTopMarginProgress = topMarginProgress;
}
// This calculates how much negative progress there can be if unwinding the spread completely
// the progress for each tile starts at 0 when it crosses the right edge, so the later a tile comes in,
// the bigger its negativeProgress can be.
property real negativeProgress: {
if (nextInStack && spreadView.phase < 2) {
return 0;
}
return -root.zIndex * spreadView.tileDistance / spreadView.width;
}
function linearAnimation(startProgress, endProgress, startValue, endValue, progress) {
// progress : progressDiff = value : valueDiff => value = progress * valueDiff / progressDiff
return (progress - startProgress) * (endValue - startValue) / (endProgress - startProgress) + startValue;
}
function easingAnimation(startProgress, endProgress, startValue, endValue, progress) {
helperEasingCurve.progress = progress - startProgress;
helperEasingCurve.period = endProgress - startProgress;
return helperEasingCurve.value * (endValue - startValue) + startValue;
}
Behavior on xTranslate {
enabled: !spreadView.active &&
!snapAnimation.running &&
model.appId !== "unity8-dash" &&
!spreadView.sideStageDragging &&
spreadView.animateX
UbuntuNumberAnimation {
duration: UbuntuAnimation.FastDuration
}
}
property real xTranslate: {
var newTranslate = 0;
if (otherSelected) {
return priv.selectedXTranslate;
}
if (isSelected) {
if (model.stage == ApplicationInfoInterface.MainStage) {
return linearAnimation(selectedProgress, negativeProgress, selectedXTranslate, -spreadView.width, root.progress);
} else {
return linearAnimation(selectedProgress, negativeProgress, selectedXTranslate, -spreadView.sideStageWidth, root.progress);
}
}
// 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
// when we're only dragging the side stage in on top of a main stage app
var shouldMoveAway = spreadView.nextInStack >= 0 && priv.movedActive && model.stage === ApplicationInfoInterface.MainStage &&
ApplicationManager.get(spreadView.nextInStack).stage === ApplicationInfoInterface.MainStage;
if (active) {
newTranslate -= root.width
// Only do the hide animation for active apps in the mainstage, and not if we only drag the ss in
if (spreadView.phase == 0 && shouldMoveAway) {
newTranslate += linearAnimation(0, spreadView.positionMarker2, 0, -units.gu(4), root.animatedProgress);
}
newTranslate += root.dragOffset;
}
if (!spreadView.active && model.appId == "unity8-dash" && !root.active) {
newTranslate -= root.width;
}
if (nextInStack && spreadView.phase == 0) {
if (model.stage == ApplicationInfoInterface.MainStage) {
if (spreadView.sideStageVisible && root.progress > 0) {
// Move it so it appears from behind the side stage immediately
newTranslate += -spreadView.sideStageWidth;
}
}
if (model.stage == ApplicationInfoInterface.SideStage && !spreadView.sideStageVisible) {
// This is when we only drag the side stage in, without rotation or snapping
newTranslate = linearAnimation(0, spreadView.positionMarker2, 0, -spreadView.sideStageWidth, root.progress);
} else {
newTranslate += linearAnimation(0, spreadView.positionMarker2, 0, -spreadView.sideStageWidth * spreadView.snapPosition, root.animatedProgress);
}
}
if (spreadView.phase == 1) {
if (nextInStack) {
if (model.stage == ApplicationInfoInterface.MainStage) {
var startValue = -spreadView.sideStageWidth * spreadView.snapPosition + (spreadView.sideStageVisible ? -spreadView.sideStageWidth : 0);
newTranslate += linearAnimation(spreadView.positionMarker2, spreadView.positionMarker4, startValue, priv.phase2StartTranslate, root.animatedProgress);
} else {
var endValue = -spreadView.width + spreadView.width * root.zIndex / 6;
if (!spreadView.sideStageVisible) {
newTranslate += linearAnimation(spreadView.positionMarker2, spreadView.positionMarker4, -spreadView.sideStageWidth, priv.phase2StartTranslate, root.progress);
} else {
newTranslate += linearAnimation(spreadView.positionMarker2, spreadView.positionMarker4, -spreadView.sideStageWidth * spreadView.snapPosition, priv.phase2StartTranslate, root.animatedProgress);
}
}
} else if (root.active) {
var startProgress = spreadView.positionMarker2 - (zIndex * spreadView.positionMarker2 / 2);
var endProgress = spreadView.positionMarker4 - (zIndex * spreadView.tileDistance / spreadView.width);
var startTranslate = -root.width + (shouldMoveAway ? -units.gu(4) : 0);
newTranslate = linearAnimation(startProgress, endProgress, startTranslate, priv.phase2StartTranslate, root.progress);
} else {
var startProgress = spreadView.positionMarker2 - (zIndex * spreadView.positionMarker2 / 2);
var endProgress = spreadView.positionMarker4 - (zIndex * spreadView.tileDistance / spreadView.width);
newTranslate = linearAnimation(startProgress, endProgress, 0, priv.phase2StartTranslate, root.progress);
}
}
if (spreadView.phase == 2) {
newTranslate = -easingCurve.value * (spreadView.width - root.zIndex * animatedEndDistance);
}
return newTranslate;
}
property real scale: {
if (!spreadView.active) {
return 1;
}
if (otherSelected) {
return selectedScale;
}
if (isSelected) {
return linearAnimation(selectedProgress, negativeProgress, selectedScale, 1, root.progress);
}
if (spreadView.phase == 0) {
if (nextInStack) {
if (model.stage == ApplicationInfoInterface.SideStage && !spreadView.sideStageVisible) {
return 1;
} else {
var targetScale = root.dragStartScale - ((root.dragStartScale - 1) * spreadView.snapPosition);
return linearAnimation(0, spreadView.positionMarker2, root.dragStartScale, targetScale, root.animatedProgress);
}
} else if (active) {
return 1;
} else {
return linearAnimation(0, spreadView.positionMarker2, root.startScale, root.endScale, root.progress);
}
}
if (spreadView.phase == 1) {
if (nextInStack) {
var startScale = 1;
if (model.stage !== ApplicationInfoInterface.SideStage || spreadView.sideStageVisible) {
startScale = root.dragStartScale - ((root.dragStartScale - 1) * spreadView.snapPosition);
}
return linearAnimation(spreadView.positionMarker2, spreadView.positionMarker4, startScale, priv.phase2StartScale, root.animatedProgress);
}
var startProgress = spreadView.positionMarker2 - (zIndex * spreadView.positionMarker2 / 2);
var endProgress = spreadView.positionMarker4 - (zIndex * spreadView.tileDistance / spreadView.width);
return linearAnimation(startProgress, endProgress, 1, priv.phase2StartScale, root.animatedProgress);
}
if (spreadView.phase == 2) {
return root.startScale - easingCurve.value * (root.startScale - root.endScale);
}
return 1;
}
property real angle: {
if (!spreadView.active) {
return 0;
}
if (otherSelected) {
return selectedAngle;
}
if (isSelected) {
return linearAnimation(selectedProgress, negativeProgress, selectedAngle, 0, root.progress);
}
// The tile should rotate a bit when another one comes on top, but not when only dragging the side stage in
var shouldMoveAway = spreadView.nextInStack >= 0 && movedActive &&
(ApplicationManager.get(spreadView.nextInStack).stage === ApplicationInfoInterface.MainStage ||
model.stage == ApplicationInfoInterface.SideStage);
if (spreadView.phase == 0) {
if (nextInStack) {
if (model.stage == ApplicationInfoInterface.SideStage && !spreadView.sideStageVisible) {
return 0;
} else {
return linearAnimation(0, spreadView.positionMarker2, root.startAngle, root.startAngle * (1-spreadView.snapPosition), root.animatedProgress);
}
}
if (shouldMoveAway) {
return linearAnimation(0, spreadView.positionMarker2, 0, root.startAngle * (1-spreadView.snapPosition), root.animatedProgress);
}
}
if (spreadView.phase == 1) {
if (nextInStack) {
if (model.stage == ApplicationInfoInterface.SideStage && !spreadView.sideStageVisible) {
return linearAnimation(spreadView.positionMarker2, spreadView.positionMarker4, 0, priv.phase2StartAngle, root.animatedProgress);
} else {
return linearAnimation(spreadView.positionMarker2, spreadView.positionMarker4, root.startAngle * (1-spreadView.snapPosition), priv.phase2StartAngle, root.animatedProgress);
}
}
var startProgress = spreadView.positionMarker2 - (zIndex * spreadView.positionMarker2 / 2);
var endProgress = spreadView.positionMarker4 - (zIndex * spreadView.tileDistance / spreadView.width);
var startAngle = shouldMoveAway ? root.startAngle * (1-spreadView.snapPosition) : 0;
return linearAnimation(startProgress, endProgress, startAngle, priv.phase2StartAngle, root.progress);
}
if (spreadView.phase == 2) {
return root.startAngle - easingCurve.value * (root.startAngle - root.endAngle);
}
return 0;
}
property real opacityTransform: {
if (otherSelected && spreadView.phase == 2) {
return linearAnimation(selectedProgress, negativeProgress, selectedOpacity, 0, root.progress);
}
return 1;
}
property real topMarginProgress: {
if (priv.isSelected) {
return linearAnimation(selectedProgress, negativeProgress, selectedTopMarginProgress, 0, root.progress);
}
switch (spreadView.phase) {
case 0:
return 0;
case 1:
return linearAnimation(spreadView.positionMarker2, spreadView.positionMarker4,
0, priv.phase2StartTopMarginProgress, root.progress);
}
return 1;
}
states: [
State {
name: "sideStageDragging"; when: spreadView.sideStageDragging && root.isInSideStage
PropertyChanges { target: priv; xTranslate: -spreadView.sideStageWidth + spreadView.sideStageWidth * spreadView.sideStageDragProgress }
}
]
}
transform: [
Rotation {
origin { x: 0; y: spreadView.height / 2 }
axis { x: 0; y: 1; z: 0 }
angle: priv.angle
},
Scale {
origin { x: 0; y: spreadView.height / 2 }
xScale: priv.scale
yScale: xScale
},
Scale {
origin { x: 0; y: (spreadView.height * priv.scale) + maximizedAppTopMargin * 3 }
xScale: 1
yScale: isFullscreen ? 1 - priv.topMarginProgress * maximizedAppTopMargin / spreadView.height : 1
},
Translate {
x: priv.xTranslate
}
]
opacity: priv.opacityTransform
UbuntuNumberAnimation {
id: fadeBackInAnimation
target: root
property: "opacity"
duration: UbuntuAnimation.SlowDuration
from: 0
to: 1
}
EasingCurve {
id: easingCurve
type: EasingCurve.OutSine
period: 1
progress: root.progress
}
EasingCurve {
id: helperEasingCurve
type: easingCurve.type
period: easingCurve.period
}
}
|