/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami/templates/OverlaySheet.qml is in qml-module-org-kde-kirigami 1.1.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (C) 2016 by Marco Martin <mart@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2, or
* (at your option) any later version.
*
* 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 Library General Public License for more details
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 2.010-1301, USA.
*/
import QtQuick 2.5
import QtQuick.Controls 1.3 as Controls
import org.kde.kirigami 1.0
import QtGraphicalEffects 1.0
import "private"
/**
* An overlay sheet that covers the current Page content.
* Its contents can be scrolled up or down, scrolling all the way up or
* all the way down, dismisses it.
* Use this for big, modal dialogs or information display, that can't be
* logically done as a new separate Page, even if potentially
* are taller than the screen space.
*/
Item {
id: root
z: 999
anchors.fill: parent
visible: false
/**
* contentItem: Item
* This property holds the visual content item.
*
* Note: The content item is automatically resized inside the
* padding of the control.
*/
default property Item contentItem
/**
* opened: bool
* If true the sheet is open showing the contents of the OverlaySheet
* component.
*/
property bool opened
/**
* leftPadding: int
* default contents padding at left
*/
property int leftPadding: Units.gridUnit
/**
* topPadding: int
* default contents padding at top
*/
property int topPadding: Units.gridUnit
/**
* rightPadding: int
* default contents padding at right
*/
property int rightPadding: Units.gridUnit
/**
* bottomPadding: int
* default contents padding at bottom
*/
property int bottomPadding: Units.gridUnit
/**
* background: Item
* This property holds the background item.
*
* Note: If the background item has no explicit size specified,
* it automatically follows the control's size.
* In most cases, there is no need to specify width or
* height for a background item.
*/
property Item background
function open() {
root.visible = true;
openAnimation.from = -root.height;
openAnimation.to = openAnimation.topOpenPosition;
openAnimation.running = true;
root.opened = true;
}
function close() {
if (scrollView.flickableItem.contentY < 0) {
closeAnimation.to = -height;
} else {
closeAnimation.to = scrollView.flickableItem.contentHeight;
}
closeAnimation.running = true;
}
Rectangle {
anchors.fill: parent
color: Theme.textColor
opacity: 0.6 * Math.min(
(Math.min(scrollView.flickableItem.contentY + scrollView.flickableItem.height, scrollView.flickableItem.height) / scrollView.flickableItem.height),
(2 + (scrollView.flickableItem.contentHeight - scrollView.flickableItem.contentY - scrollView.flickableItem.topMargin - scrollView.flickableItem.bottomMargin)/scrollView.flickableItem.height))
}
Component.onCompleted: {
scrollView.flickableItem.interactive = true;
}
onBackgroundChanged: {
background.parent = flickableContents;
background.z = -1;
}
onContentItemChanged: {
if (contentItem.hasOwnProperty("contentY") && // Check if flickable
contentItem.hasOwnProperty("contentHeight")) {
contentItem.parent = scrollView;
scrollView.contentItem = contentItem;
} else {
contentItem.parent = contentItemParent;
scrollView.contentItem = flickableContents;
contentItem.anchors.left = contentItemParent.left;
contentItem.anchors.right = contentItemParent.right;
}
scrollView.flickableItem.flickableDirection = Flickable.VerticalFlick;
}
onOpenedChanged: {
if (opened) {
open();
} else {
close();
Qt.inputMethod.hide();
}
}
onWidthChanged: {
if (!contentItem.contentItem)
return
var width = Math.max(root.width/2, Math.min(root.width, root.contentItem.implicitWidth));
contentItem.contentItem.x = (root.width - width)/2
contentItem.contentItem.width = width;
}
onHeightChanged: {
var focusItem;
if (typeof applicationWindow !== "undefined") {
focusItem = applicationWindow().activeFocusItem;
//fallback: hope activeFocusItem is in context
} else {
focusItem = activeFocusItem;
}
if (!activeFocusItem) {
return;
}
//NOTE: there is no function to know if an item is descended from another,
//so we have to walk the parent hyerarchy by hand
var isDescendent = false;
var candidate = focusItem.parent;
while (candidate) {
if (candidate == root) {
isDescendent = true;
break;
}
candidate = candidate.parent;
}
if (!isDescendent) {
return;
}
var cursorY = 0;
if (focusItem.cursorPosition !== undefined) {
cursorY = focusItem.positionToRectangle(focusItem.cursorPosition).y;
}
var pos = focusItem.mapToItem(flickableContents, 0, cursorY - Units.gridUnit*3);
//focused item alreqady visible? add some margin for the space of the action buttons
if (pos.y >= scrollView.flickableItem.contentY && pos.y <= scrollView.flickableItem.contentY + scrollView.flickableItem.height - Units.gridUnit * 8) {
return;
}
scrollView.flickableItem.contentY = pos.y;
}
NumberAnimation {
id: openAnimation
property int topOpenPosition: Math.min(-root.height*0.15, scrollView.flickableItem.contentHeight - root.height + Units.gridUnit * 5)
property int bottomOpenPosition: (scrollView.flickableItem.contentHeight - root.height) + (Units.gridUnit * 5)
target: scrollView.flickableItem
properties: "contentY"
from: -root.height
to: topOpenPosition
duration: Units.longDuration
easing.type: Easing.OutQuad
onRunningChanged: {
if (!running) {
var width = Math.max(root.width/2, Math.min(root.width, root.contentItem.implicitWidth));
contentItem.contentItem.x = (root.width - width)/2
contentItem.contentItem.width = width;
}
}
}
SequentialAnimation {
id: closeAnimation
property int to: -root.height
NumberAnimation {
target: scrollView.flickableItem
properties: "contentY"
to: closeAnimation.to
duration: Units.longDuration
easing.type: Easing.InQuad
}
ScriptAction {
script: {
scrollView.flickableItem.contentY = -root.height;
root.visible = root.opened = false;
}
}
}
MouseArea {
anchors.fill: parent
z: 2
drag.filterChildren: true
hoverEnabled: true
onClicked: {
var pos = mapToItem(flickableContents, mouse.x, mouse.y);
if (!flickableContents.contains(pos)) {
root.close();
}
}
Item {
id: flickableContents
//anchors.horizontalCenter: parent.horizontalCenter
x: (root.width - width) / 2
y: scrollView.flickableItem && root.contentItem.hasOwnProperty("contentY") ? -scrollView.flickableItem.contentY : 0
width: root.contentItem.implicitWidth <= 0 ? root.width : Math.max(root.width/2, Math.min(root.width, root.contentItem.implicitWidth))
height: scrollView.flickableItem && root.contentItem.hasOwnProperty("contentY") ? scrollView.flickableItem.contentHeight : (root.contentItem.height + topPadding + bottomPadding + Units.iconSizes.medium + Units.gridUnit)
Item {
id: contentItemParent
anchors {
fill: parent
leftMargin: leftPadding
topMargin: topPadding
rightMargin: rightPadding
bottomMargin: bottomPadding
}
}
}
Binding {
when: scrollView.flickableItem != null
target: scrollView.flickableItem
property: "topMargin"
value: scrollView.height
}
Binding {
when: scrollView.flickableItem != null
target: scrollView.flickableItem
property: "bottomMargin"
value: scrollView.height
}
Connections {
target: scrollView.flickableItem
function movementEnded() {
//close
if ((root.height + scrollView.flickableItem.contentY) < root.height/2) {
closeAnimation.to = -root.height;
closeAnimation.running = true;
} else if ((root.height*0.6 + scrollView.flickableItem.contentY) > scrollView.flickableItem.contentHeight) {
closeAnimation.to = scrollView.flickableItem.contentHeight
closeAnimation.running = true;
//reset to the default opened position
} else if (scrollView.flickableItem.contentY < openAnimation.topOpenPosition) {
openAnimation.from = scrollView.flickableItem.contentY;
openAnimation.to = openAnimation.topOpenPosition;
openAnimation.running = true;
//reset to the default "bottom" opened position
} else if (scrollView.flickableItem.contentY > openAnimation.bottomOpenPosition) {
openAnimation.from = scrollView.flickableItem.contentY;
openAnimation.to = openAnimation.bottomOpenPosition;
openAnimation.running = true;
}
}
onMovementEnded: movementEnded();
onFlickEnded: movementEnded();
onContentHeightChanged: {
if (openAnimation.running) {
openAnimation.running = false;
open();
}
}
}
Controls.ScrollView {
id: scrollView
anchors.fill: parent
horizontalScrollBarPolicy: Qt.ScrollBarAlwaysOff
}
}
}
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