MouseHandler = createClass({
init: function (el, options) {
var $el = $(el);
this.$el = $el;
this.options = options;
this.currentPageX = 0;
this.currentPageY = 0;
this.el = el;
this.splist = [];
this.tooltip = null;
this.over = false;
this.displayTooltips = !options.get('disableTooltips');
this.highlightEnabled = !options.get('disableHighlight');
},
registerSparkline: function (sp) {
this.splist.push(sp);
if (this.over) {
this.updateDisplay();
}
},
registerCanvas: function (canvas) {
var $canvas = $(canvas.canvas);
this.canvas = canvas;
this.$canvas = $canvas;
$canvas.mouseenter($.proxy(this.mouseenter, this));
$canvas.mouseleave($.proxy(this.mouseleave, this));
$canvas.click($.proxy(this.mouseclick, this));
},
reset: function (removeTooltip) {
this.splist = [];
if (this.tooltip && removeTooltip) {
this.tooltip.remove();
this.tooltip = undefined;
}
},
mouseclick: function (e) {
var clickEvent = $.Event('sparklineClick');
clickEvent.originalEvent = e;
clickEvent.sparklines = this.splist;
this.$el.trigger(clickEvent);
},
mouseenter: function (e) {
$(document.body).unbind('mousemove.jqs');
$(document.body).bind('mousemove.jqs', $.proxy(this.mousemove, this));
this.over = true;
this.currentPageX = e.pageX;
this.currentPageY = e.pageY;
this.currentEl = e.target;
if (!this.tooltip && this.displayTooltips) {
this.tooltip = new Tooltip(this.options);
this.tooltip.updatePosition(e.pageX, e.pageY);
}
this.updateDisplay();
},
mouseleave: function () {
$(document.body).unbind('mousemove.jqs');
var splist = this.splist,
spcount = splist.length,
needsRefresh = false,
sp, i;
this.over = false;
this.currentEl = null;
if (this.tooltip) {
this.tooltip.remove();
this.tooltip = null;
}
for (i = 0; i < spcount; i++) {
sp = splist[i];
if (sp.clearRegionHighlight()) {
needsRefresh = true;
}
}
if (needsRefresh) {
this.canvas.render();
}
},
mousemove: function (e) {
this.currentPageX = e.pageX;
this.currentPageY = e.pageY;
this.currentEl = e.target;
if (this.tooltip) {
this.tooltip.updatePosition(e.pageX, e.pageY);
}
this.updateDisplay();
},
updateDisplay: function () {
var splist = this.splist,
spcount = splist.length,
needsRefresh = false,
offset = this.$canvas.offset(),
localX = this.currentPageX - offset.left,
localY = this.currentPageY - offset.top,
tooltiphtml, sp, i, result, changeEvent;
if (!this.over) {
return;
}
for (i = 0; i < spcount; i++) {
sp = splist[i];
result = sp.setRegionHighlight(this.currentEl, localX, localY);
if (result) {
needsRefresh = true;
}
}
if (needsRefresh) {
changeEvent = $.Event('sparklineRegionChange');
changeEvent.sparklines = this.splist;
this.$el.trigger(changeEvent);
if (this.tooltip) {
tooltiphtml = '';
for (i = 0; i < spcount; i++) {
sp = splist[i];
tooltiphtml += sp.getCurrentRegionTooltip();
}
this.tooltip.setContent(tooltiphtml);
}
if (!this.disableHighlight) {
this.canvas.render();
}
}
if (result === null) {
this.mouseleave();
}
}
});
Tooltip = createClass({
sizeStyle: 'position: static !important;' +
'display: block !important;' +
'visibility: hidden !important;' +
'float: left !important;',
init: function (options) {
var tooltipClassname = options.get('tooltipClassname', 'jqstooltip'),
sizetipStyle = this.sizeStyle,
offset;
this.container = options.get('tooltipContainer') || document.body;
this.tooltipOffsetX = options.get('tooltipOffsetX', 10);
this.tooltipOffsetY = options.get('tooltipOffsetY', 12);
// remove any previous lingering tooltip
$('#jqssizetip').remove();
$('#jqstooltip').remove();
this.sizetip = $('', {
id: 'jqssizetip',
style: sizetipStyle,
'class': tooltipClassname
});
this.tooltip = $('', {
id: 'jqstooltip',
'class': tooltipClassname
}).appendTo(this.container);
// account for the container's location
offset = this.tooltip.offset();
this.offsetLeft = offset.left;
this.offsetTop = offset.top;
this.hidden = true;
$(window).unbind('resize.jqs scroll.jqs');
$(window).bind('resize.jqs scroll.jqs', $.proxy(this.updateWindowDims, this));
this.updateWindowDims();
},
updateWindowDims: function () {
this.scrollTop = $(window).scrollTop();
this.scrollLeft = $(window).scrollLeft();
this.scrollRight = this.scrollLeft + $(window).width();
this.updatePosition();
},
getSize: function (content) {
this.sizetip.html(content).appendTo(this.container);
this.width = this.sizetip.width() + 1;
this.height = this.sizetip.height();
this.sizetip.remove();
},
setContent: function (content) {
if (!content) {
this.tooltip.css('visibility', 'hidden');
this.hidden = true;
return;
}
this.getSize(content);
this.tooltip.html(content)
.css({
'width': this.width,
'height': this.height,
'visibility': 'visible'
});
if (this.hidden) {
this.hidden = false;
this.updatePosition();
}
},
updatePosition: function (x, y) {
if (x === undefined) {
if (this.mousex === undefined) {
return;
}
x = this.mousex - this.offsetLeft;
y = this.mousey - this.offsetTop;
} else {
this.mousex = x = x - this.offsetLeft;
this.mousey = y = y - this.offsetTop;
}
if (!this.height || !this.width || this.hidden) {
return;
}
y -= this.height + this.tooltipOffsetY;
x += this.tooltipOffsetX;
if (y < this.scrollTop) {
y = this.scrollTop;
}
if (x < this.scrollLeft) {
x = this.scrollLeft;
} else if (x + this.width > this.scrollRight) {
x = this.scrollRight - this.width;
}
this.tooltip.css({
'left': x,
'top': y
});
},
remove: function () {
this.tooltip.remove();
this.sizetip.remove();
this.sizetip = this.tooltip = undefined;
$(window).unbind('resize.jqs scroll.jqs');
}
});