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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Components project.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 1.1
// Background dimming
Rectangle {
id: faderBackground
property double dim: 0.9
property int fadeInDuration: 250
property int fadeOutDuration: 250
property int fadeInDelay: 0
property int fadeOutDelay: 0
property int fadeInEasingType: Easing.InQuint
property int fadeOutEasingType: Easing.OutQuint
property url background: ""
property Item visualParent: null
property Item originalParent: parent
// widen the edges to avoid artefacts during rotation
anchors.topMargin: -1
anchors.rightMargin: -1
anchors.bottomMargin: -1
anchors.leftMargin: -1
// opacity is passed to child elements - that is not, what we want
// so we need to use alpha value here
property double alpha: dim
signal privateClicked
//Deprecated, TODO Remove the following two lines on w13
signal clicked
onClicked: privateClicked()
// we need the possibility to fetch the red, green, blue components from a color
// see http://bugreports.qt.nokia.com/browse/QTBUG-14731
color: background != "" ? "transparent" : Qt.rgba(0.0, 0.0, 0.0, alpha)
state: 'hidden'
anchors.fill: parent
// eat mouse events
MouseArea {
id: mouseEventEater
anchors.fill: parent
enabled: faderBackground.alpha != 0.0
onClicked: { parent.privateClicked() }
}
Component {
id: backgroundComponent
BorderImage {
id: backgroundImage
source: background
width: faderBackground.width
height: faderBackground.height
opacity: faderBackground.alpha
}
}
Loader {id: backgroundLoader}
onAlphaChanged: {
if (background && faderBackground.alpha && backgroundLoader.sourceComponent == undefined) {
backgroundLoader.sourceComponent = backgroundComponent;
}
if (!faderBackground.alpha) {
backgroundLoader.sourceComponent = undefined;
}
}
function findRoot() {
var next = parent;
if (next != null) {
while (next.parent) {
if(next.objectName == "appWindowContent" || next.objectName == "windowContent"){
break
}
next = next.parent;
}
}
return next;
}
states: [
State {
name: "visible"
PropertyChanges {
target: faderBackground
alpha: dim
}
},
State {
name: "hidden"
PropertyChanges {
target: faderBackground
alpha: 0.0
}
}
]
transitions: [
Transition {
from: "hidden"; to: "visible"
//reparent fader whenever it is going to be visible
SequentialAnimation {
ScriptAction {script: {
//console.log("=============00=============");
// the algorithm works in the following way:
// First: Check if visualParent property is set; if yes, center the fader in visualParent
// Second: If not, center inside window content element
// Third: If no window was found, use root window
originalParent = faderBackground.parent;
if (visualParent != null) {
faderBackground.parent = visualParent
} else {
var root = findRoot();
if (root != null) {
faderBackground.parent = root;
} else {
// console.log("Error: Cannot find root");
}
}
}
}
PauseAnimation { duration: fadeInDelay }
NumberAnimation {
properties: "alpha"
duration: faderBackground.fadeInDuration
easing.type: faderBackground.fadeInEasingType;
}
}
},
Transition {
from: "visible"; to: "hidden"
SequentialAnimation {
PauseAnimation { duration: fadeOutDelay }
NumberAnimation {
properties: "alpha"
duration: faderBackground.fadeOutDuration
easing.type: faderBackground.fadeOutEasingType;
}
ScriptAction {script: {
faderBackground.parent = originalParent;
}
}
}
}
]
}
|
