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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>
* Daniel d'Andrada <daniel.dandrada@canonical.com>
*/
import QtQuick 2.0
import Ubuntu.Components 1.1
import "../Components"
Item {
id: root
// to be read from outside
readonly property bool dragged: dragArea.moving
signal clicked()
signal closed()
// to be set from outside
property bool interactive: true
property bool dropShadow: true
property real maximizedAppTopMargin
property alias swipeToCloseEnabled: dragArea.enabled
property bool closeable
property alias application: appWindow.application
property int orientation
Item {
objectName: "appWindowWithShadow"
readonly property real limit: root.height / 4
y: root.closeable ? dragArea.distance : elastic(dragArea.distance)
width: parent.width
height: parent.height
function elastic(distance) {
var k = distance < 0 ? -limit : limit
return k * (1 - Math.pow((k - 1) / k, distance))
}
BorderImage {
anchors {
fill: appWindow
margins: -units.gu(2)
}
source: "graphics/dropshadow2gu.sci"
opacity: root.dropShadow ? .3 : 0
Behavior on opacity { UbuntuNumberAnimation {} }
}
ApplicationWindow {
id: appWindow
objectName: application ? "appWindow_" + application.appId : "appWindow_null"
anchors {
fill: parent
topMargin: appWindow.fullscreen ? 0 : maximizedAppTopMargin
}
interactive: root.interactive
orientation: root.orientation
}
}
DraggingArea {
id: dragArea
objectName: "dragArea"
anchors.fill: parent
property bool moving: false
property real distance: 0
readonly property int threshold: units.gu(2)
property int offset: 0
readonly property real minSpeedToClose: units.gu(40)
onDragValueChanged: {
if (!dragging) {
return;
}
moving = moving || Math.abs(dragValue) > threshold;
if (moving) {
distance = dragValue + offset;
}
}
onMovingChanged: {
if (moving) {
offset = (dragValue > 0 ? -threshold: threshold)
} else {
offset = 0;
}
}
onClicked: {
if (!moving) {
root.clicked();
}
}
onDragEnd: {
if (!root.closeable) {
animation.animate("center")
return;
}
// velocity and distance values specified by design prototype
if ((dragVelocity < -minSpeedToClose && distance < -units.gu(8)) || distance < -root.height / 2) {
animation.animate("up")
} else if ((dragVelocity > minSpeedToClose && distance > units.gu(8)) || distance > root.height / 2) {
animation.animate("down")
} else {
animation.animate("center")
}
}
UbuntuNumberAnimation {
id: animation
objectName: "closeAnimation"
target: dragArea
property: "distance"
property bool requestClose: false
function animate(direction) {
animation.from = dragArea.distance;
switch (direction) {
case "up":
animation.to = -root.height * 1.5;
requestClose = true;
break;
case "down":
animation.to = root.height * 1.5;
requestClose = true;
break;
default:
animation.to = 0
}
animation.start();
}
onRunningChanged: {
if (!running) {
dragArea.moving = false;
if (requestClose) {
root.closed();
} else {
dragArea.distance = 0;
}
}
}
}
}
}
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