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EdgeBarrierController.qml
/*
* Copyright (C) 2015 Canonical Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import QtQuick 2.15
import Utils 0.1 // For EdgeBarrierSettings
MouseArea {
id: root
hoverEnabled: true
// Edge push progress
// Value range is [0.0, 1.0]
readonly property real progress: Math.min(Math.max(0.0, _accumulatedPush / EdgeBarrierSettings.pushThreshold), 1.0)
// Emitted when progress reaches 1.0
// Should trigger the action associated with this edge
signal passed()
onPressed: mouse.accepted = false;
function push(amount) {
if (!root._containsMouse) {
console.warn("pushing right edge without mouse actually being at right edge!")
return;
}
if (_accumulatedPush === EdgeBarrierSettings.pushThreshold) {
// NO-OP
return;
}
if (_accumulatedPush + amount > EdgeBarrierSettings.pushThreshold) {
_accumulatedPush = EdgeBarrierSettings.pushThreshold;
} else {
_accumulatedPush += amount;
}
if (_accumulatedPush === EdgeBarrierSettings.pushThreshold) {
passed();
}
}
onEnabledChanged: {
if (!enabled) {
// reset
_accumulatedPush = 0;
}
}
// to be overwritten by tests
property bool _containsMouse: root.containsMouse
on_ContainsMouseChanged: {
if (!_containsMouse) {
// reset
_accumulatedPush = 0;
}
}
property real _accumulatedPush: 0
}