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102 lines
3.0 KiB
JavaScript
102 lines
3.0 KiB
JavaScript
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/*****
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* A no frills tooltip implementation.
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*****/
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(function() {
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var nvtooltip = window.nv.tooltip = {};
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nvtooltip.show = function(pos, content, gravity, dist, parentContainer) {
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var container = document.createElement("div");
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container.className = "nvtooltip";
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gravity = gravity || 's';
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dist = dist || 20;
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var body = parentContainer ? parentContainer : document.getElementsByTagName("body")[0];
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container.innerHTML = content;
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container.style.left = 0;
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container.style.top = 0;
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container.style.opacity = 0;
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body.appendChild(container);
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var height = parseInt(container.offsetHeight),
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width = parseInt(container.offsetWidth),
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windowWidth = nv.utils.windowSize().width,
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windowHeight = nv.utils.windowSize().height,
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scrollTop = body.scrollTop,
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scrollLeft = body.scrollLeft,
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left, top;
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switch (gravity) {
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case 'e':
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left = pos[0] - width - dist;
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top = pos[1] - (height / 2);
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if (left < scrollLeft) left = pos[0] + dist;
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if (top < scrollTop) top = scrollTop + 5;
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if (top + height > scrollTop + windowHeight) top = scrollTop - height - 5;
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break;
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case 'w':
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left = pos[0] + dist;
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top = pos[1] - (height / 2);
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if (left + width > windowWidth) left = pos[0] - width - dist;
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if (top < scrollTop) top = scrollTop + 5;
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if (top + height > scrollTop + windowHeight) top = scrollTop - height - 5;
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break;
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case 'n':
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left = pos[0] - (width / 2);
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top = pos[1] + dist;
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if (left < scrollLeft) left = scrollLeft + 5;
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if (left + width > windowWidth) left = windowWidth - width - 5;
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if (top + height > scrollTop + windowHeight) top = pos[1] - height - dist;
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break;
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case 's':
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left = pos[0] - (width / 2);
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top = pos[1] - height - dist;
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if (left < scrollLeft) left = scrollLeft + 5;
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if (left + width > windowWidth) left = windowWidth - width - 5;
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if (scrollTop > top) top = pos[1] + 20;
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break;
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}
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container.style.left = left+"px";
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container.style.top = top+"px";
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container.style.opacity = 1;
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container.style.position = "absolute"; //fix scroll bar issue
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container.style.pointerEvents = "none"; //fix scroll bar issue
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return container;
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};
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nvtooltip.cleanup = function() {
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// Find the tooltips, mark them for removal by this class (so others cleanups won't find it)
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var tooltips = document.getElementsByClassName('nvtooltip');
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var purging = [];
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while(tooltips.length) {
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purging.push(tooltips[0]);
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tooltips[0].style.transitionDelay = "0 !important";
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tooltips[0].style.opacity = 0;
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tooltips[0].className = "nvtooltip-pending-removal";
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}
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setTimeout(function() {
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while (purging.length) {
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var removeMe = purging.pop();
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removeMe.parentNode.removeChild(removeMe);
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}
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}, 500);
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};
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})();
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