- if (this.attr_('ylabel')) {
- var box = {
- left: 0,
- top: this.area.y,
- width: this.attr_('yLabelWidth'),
- height: this.area.h
- };
- // TODO(danvk): is this outer div actually necessary?
- var div = document.createElement("div");
- div.style.position = 'absolute';
- div.style.left = box.left;
- div.style.top = box.top + 'px';
- div.style.width = box.width + 'px';
- div.style.height = box.height + 'px';
- div.style.fontSize = (this.attr_('yLabelWidth') - 2) + 'px';
-
- var inner_div = document.createElement("div");
- inner_div.style.position = 'absolute';
- inner_div.style.width = box.height + 'px';
- inner_div.style.height = box.width + 'px';
- inner_div.style.top = (box.height / 2 - box.width / 2) + 'px';
- inner_div.style.left = (box.width / 2 - box.height / 2) + 'px';
- inner_div.style.textAlign = 'center';
-
- // CSS rotation is an HTML5 feature which is not standardized. Hence every
- // browser has its own name for the CSS style.
- inner_div.style.transform = 'rotate(-90deg)'; // HTML5
- inner_div.style.WebkitTransform = 'rotate(-90deg)'; // Safari/Chrome
- inner_div.style.MozTransform = 'rotate(-90deg)'; // Firefox
- inner_div.style.OTransform = 'rotate(-90deg)'; // Opera
- inner_div.style.msTransform = 'rotate(-90deg)'; // IE9
-
- if (typeof(document.documentMode) !== 'undefined' &&
- document.documentMode < 9) {
- // We're dealing w/ an old version of IE, so we have to rotate the text
- // using a BasicImage transform. This uses a different origin of rotation
- // than HTML5 rotation (top left of div vs. its center).
- inner_div.style.filter =
- 'progid:DXImageTransform.Microsoft.BasicImage(rotation=3)';
- inner_div.style.left = '0px';
- inner_div.style.top = '0px';
- }
-
- var class_div = document.createElement("div");
- class_div.className = 'dygraph-label dygraph-ylabel';
- class_div.innerHTML = this.attr_('ylabel');