tooltip.js
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/*
* Copyright 2015 Open Networking Laboratory
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
ONOS GUI -- Widget -- Tooltip Service
*/
(function () {
'use strict';
// injected references
var $log, $timeout, fs;
// constants
var hoverHeight = 35,
hoverDelay = 500,
exitDelay = 100;
// internal state
var tooltip, currElemId;
// === Helper functions ---------------------------------------------
function init() {
tooltip = d3.select('#tooltip');
tooltip.html('');
}
function tipStyle(mouseX, mouseY) {
var winWidth = fs.windowSize().width,
winHeight = fs.windowSize().height,
style = {
display: 'inline-block'
};
if (mouseX <= (winWidth / 2)) {
style.left = mouseX + 'px';
} else {
style.right = (winWidth - mouseX) + 'px';
}
if (mouseY <= (winHeight / 2)) {
style.top = (mouseY + (hoverHeight - 10)) + 'px';
} else {
style.top = (mouseY - hoverHeight) + 'px';
}
return style;
}
// === API functions ------------------------------------------------
function showTooltip(el, msg) {
// tooltips don't make sense on mobile devices
if (!el || !msg || fs.isMobile()) {
return;
}
var elem = d3.select(el),
mouseX = d3.event.pageX,
mouseY = d3.event.pageY,
style = tipStyle(mouseX, mouseY);
currElemId = elem.attr('id');
tooltip.transition()
.delay(hoverDelay)
.each('start', function () {
d3.select(this).style('display', 'none');
})
.each('end', function () {
d3.select(this).style(style)
.text(msg);
});
}
function cancelTooltip(el) {
if (!el) {
return;
}
var elem = d3.select(el);
if (elem.attr('id') === currElemId) {
tooltip.transition()
.delay(exitDelay)
.style({
display: 'none'
})
.text('');
}
}
angular.module('onosWidget')
.factory('TooltipService', ['$log', '$timeout', 'FnService',
function (_$log_, _$timeout_, _fs_) {
$log = _$log_;
$timeout = _$timeout_;
fs = _fs_;
init();
return {
showTooltip: showTooltip,
cancelTooltip: cancelTooltip
};
}]);
}());