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}
amendCssOnce = 0;
}
var tooltipObj = document.createElement("span");
tooltipObj.className = "tl-tooltip";
tooltipObj.style.visibility = "hidden";
document.getElementsByClassName("content")[0].appendChild(tooltipObj);
/* Clear the close timer if the mouse is over the tooltip. */
tooltipObj.onmouseenter = function(e) {
if (tooltipInfo.idTimerClose != 0) {
clearTimeout(tooltipInfo.idTimerClose);
tooltipInfo.idTimerClose = 0;
}
};
/* Init the close timer if the mouse is no longer over the tooltip. */
tooltipObj.onmouseleave = function(e) {
if (tooltipInfo.ixActive != -1 && tooltipInfo.idTimerClose == 0) {
tooltipInfo.idTimerClose = setTimeout(function() {
tooltipInfo.idTimerClose = 0;
tooltipInfo.ixActive = -1;
tooltipObj.style.display = "none";
}.bind(window),tooltipInfo.closeTimeout);
}
};
/* This object must be in the global scope, so that (non-shadowed) access is
** possible from within a setTimeout() closure. */
window.tooltipInfo = {
dwellTimeout: 250, /* The tooltip dwell timeout. */
closeTimeout: 3000, /* The tooltip close timeout. */
idTimer: 0, /* The tooltip dwell timer. */
ixElement: -1, /* The id of the last hovered element. */
idTimer: 0, /* The tooltip dwell timer id. */
idTimerClose: 0, /* The tooltip close timer id. */
ixHover: -1, /* The id of the element with the mouse. */
ixActive: -1, /* The id of the element with the tooltip. */
posX: 0, posY: 0 /* The last mouse position. */
};
/* Construct that graph corresponding to the timeline-data-N object */
function TimelineGraph(tx){
var topObj = document.getElementById("timelineTable"+tx.iTableId);
amendCss(tx.circleNodes, tx.showArrowheads);
topObj.onclick = clickOnGraph
topObj.ondblclick = dblclickOnGraph
topObj.onmousemove = function(e) {
var ix = findTxIndex(e);
var cursor = (ix<0) ? "" : "pointer"; /* Or: cursor = "help"? */
document.getElementsByTagName('body')[0].style.cursor = cursor;
/* Keep the already visible tooltip at a constant position, as long as the
** mouse is over the same element. */
var isReentry = false; // Detect mouse move back to same element.
if (tooltipObj.style.display != "none" && ix == tooltipInfo.ixElement)
return;
if (tooltipObj.style.display != "none") {
if (ix == tooltipInfo.ixHover)
return;
if (-1 == tooltipInfo.ixHover && ix == tooltipInfo.ixActive)
isReentry = true;
}
/* The tooltip is either not visible, or the mouse is over a different
** element, so clear the dwell timer, and record the new element id and
** mouse position. */
if (tooltipInfo.idTimer != 0) {
clearTimeout(tooltipInfo.idTimer);
tooltipInfo.idTimer = 0;
}
if (ix >= 0) {
/* Close the tooltip only if the mouse is over another element, and init
** the dwell timer again. */
if (!isReentry) {
tooltipInfo.ixActive = -1;
tooltipObj.style.display = "none";
tooltipInfo.ixElement = ix;
tooltipObj.style.display = "none";
}
tooltipInfo.ixHover = ix;
tooltipInfo.posX = e.x;
tooltipInfo.posY = e.y;
/* Clear the close timer. */
if (tooltipInfo.idTimerClose != 0) {
clearTimeout(tooltipInfo.idTimerClose);
tooltipInfo.idTimerClose = 0;
}
if (!isReentry) {
tooltipInfo.idTimer = setTimeout(function() {
this.tooltipInfo.idTimer = 0;
showGraphTooltip(
this.tooltipInfo.ixElement,
this.tooltipInfo.posX,
this.tooltipInfo.posY);
}.bind(window),tooltipInfo.dwellTimeout);
}
else
tooltipInfo.ixElement = -1;
tooltipInfo.idTimer = setTimeout(function() {
this.tooltipInfo.idTimer = 0;
/* Clear the timer to hide the tooltip. */
if (this.tooltipInfo.idTimerClose != 0) {
clearTimeout(this.tooltipInfo.idTimerClose);
this.tooltipInfo.idTimerClose = 0;
}
showGraphTooltip(
this.tooltipInfo.ixHover,
this.tooltipInfo.posX,
this.tooltipInfo.posY);
this.tooltipInfo.ixActive = this.tooltipInfo.ixHover;
}.bind(window),tooltipInfo.dwellTimeout);
}
}
else {
tooltipInfo.ixHover = -1;
/* The mouse is not over an element with a tooltip, init the hide
** timer. */
if (tooltipInfo.idTimerClose == 0) {
tooltipInfo.idTimerClose = setTimeout(function() {
this.tooltipInfo.idTimerClose = 0;
this.tooltipInfo.ixActive = -1;
tooltipObj.style.display = "none";
}.bind(window),tooltipInfo.closeTimeout);
}
}
};
topObj.onmouseleave = function(e) {
/* Hide the tooltip if the mouse is outside the "timelineTableN" element,
** and outside the tooltip. */
if (tooltipObj.style.display != "none" &&
e.relatedTarget &&
e.relatedTarget != tooltipObj) {
tooltipInfo.ixHover = -1;
tooltipInfo.ixActive = -1;
tooltipObj.style.display = "none";
/* Clear the dwell timer. */
if (tooltipInfo.idTimer != 0) {
clearTimeout(tooltipInfo.idTimer);
tooltipInfo.idTimer = 0;
}
/* Clear the close timer. */
if (tooltipInfo.idTimerClose != 0) {
clearTimeout(tooltipInfo.idTimerClose);
tooltipInfo.ixElement = -1;
tooltipInfo.idTimerClose = 0;
}
}
};
var canvasDiv;
var railPitch;
var mergeOffset;
var node, arrow, arrowSmall, line, mArrow, mLine, wArrow, wLine;
|