Dygraph.log = function(severity, message) {
var st;
if (typeof(printStackTrace) != 'undefined') {
- // Remove uninteresting bits: logging functions and paths.
- st = printStackTrace({guess:false});
- while (st[0].indexOf("stacktrace") != -1) {
- st.splice(0, 1);
- }
+ try {
+ // Remove uninteresting bits: logging functions and paths.
+ st = printStackTrace({guess:false});
+ while (st[0].indexOf("stacktrace") != -1) {
+ st.splice(0, 1);
+ }
- st.splice(0, 2);
- for (var i = 0; i < st.length; i++) {
- st[i] = st[i].replace(/\([^)]*\/(.*)\)/, '@$1')
- .replace(/\@.*\/([^\/]*)/, '@$1')
- .replace('[object Object].', '');
+ st.splice(0, 2);
+ for (var i = 0; i < st.length; i++) {
+ st[i] = st[i].replace(/\([^)]*\/(.*)\)/, '@$1')
+ .replace(/\@.*\/([^\/]*)/, '@$1')
+ .replace('[object Object].', '');
+ }
+ var top_msg = st.splice(0, 1)[0];
+ message += ' (' + top_msg.replace(/^.*@ ?/, '') + ')';
+ } catch(e) {
+ // Oh well, it was worth a shot!
}
- var top_msg = st.splice(0, 1)[0];
- message += ' (' + top_msg.replace(/^.*@ ?/, '') + ')';
}
if (typeof(console) != 'undefined') {
if (elem.removeEventListener) {
elem.removeEventListener(type, fn, false);
} else {
- elem.detachEvent('on'+type, elem[type+fn]);
+ try {
+ elem.detachEvent('on'+type, elem[type+fn]);
+ } catch(e) {
+ // We only detach event listeners on a "best effort" basis in IE. See:
+ // http://stackoverflow.com/questions/2553632/detachevent-not-working-with-named-inline-functions
+ }
elem[type+fn] = null;
}
};
Dygraph.Iterator = function(array, start, length, predicate) {
start = start || 0;
length = length || array.length;
+ this.hasNext = true; // Use to identify if there's another element.
+ this.peek = null; // Use for look-ahead
+ this.start_ = start;
this.array_ = array;
this.predicate_ = predicate;
this.end_ = Math.min(array.length, start + length);
- this.nextIdx_ = start - 1; // use -1 so initial call to advance works.
- this.hasNext_ = true;
- this.peek_ = null;
- this.advance_();
-}
-
-Dygraph.Iterator.prototype.hasNext = function() {
- return this.hasNext_;
-}
+ this.nextIdx_ = start - 1; // use -1 so initial advance works.
+ this.next(); // ignoring result.
+};
Dygraph.Iterator.prototype.next = function() {
- if (this.hasNext_) {
- var obj = this.peek_;
- this.advance_();
- return obj;
- }
- return null;
-}
-
-Dygraph.Iterator.prototype.peek = function() {
- return this.peek_;
-}
-
-Dygraph.Iterator.prototype.advance_ = function() {
- var nextIdx = this.nextIdx_;
- nextIdx++;
- while(nextIdx < this.end_) {
+ if (!this.hasNext) {
+ return null;
+ }
+ var obj = this.peek;
+
+ var nextIdx = this.nextIdx_ + 1;
+ var found = false;
+ while (nextIdx < this.end_) {
if (!this.predicate_ || this.predicate_(this.array_, nextIdx)) {
- this.peek_ = this.array_[nextIdx];
- this.nextIdx_ = nextIdx;
- return;
+ this.peek = this.array_[nextIdx];
+ found = true;
+ break;
}
nextIdx++;
}
this.nextIdx_ = nextIdx;
- this.hasNext_ = false;
- this.peek_ = null;
-}
+ if (!found) {
+ this.hasNext = false;
+ this.peek = null;
+ }
+ return obj;
+};
/**
* @private
}
ctx.fill();
ctx.stroke();
-}
+};
Dygraph.shapeFunction_ = function(sides, rotationRadians, delta) {
return function(g, name, ctx, cx, cy, color, radius) {
Dygraph.DrawPolygon_ = function(sides, rotationRadians, ctx, cx, cy, color, radius, delta) {
new Dygraph.RegularShape_(sides, rotationRadians, delta).draw(ctx, cx, cy, radius);
-}
+};
Dygraph.Circles = {
DEFAULT : function(g, name, ctx, canvasx, canvasy, color, radius) {
ctx.stroke();
}
};
+
+/**
+ * To create a "drag" interaction, you typically register a mousedown event
+ * handler on the element where the drag begins. In that handler, you register a
+ * mouseup handler on the window to determine when the mouse is released,
+ * wherever that release happens. This works well, except when the user releases
+ * the mouse over an off-domain iframe. In that case, the mouseup event is
+ * handled by the iframe and never bubbles up to the window handler.
+ *
+ * To deal with this issue, we cover iframes with high z-index divs to make sure
+ * they don't capture mouseup.
+ *
+ * Usage:
+ * element.addEventListener('mousedown', function() {
+ * var tarper = new Dygraph.IFrameTarp();
+ * tarper.cover();
+ * var mouseUpHandler = function() {
+ * ...
+ * window.removeEventListener(mouseUpHandler);
+ * tarper.uncover();
+ * };
+ * window.addEventListener('mouseup', mouseUpHandler);
+ * };
+ *
+ *
+ * @constructor
+ */
+Dygraph.IFrameTarp = function() {
+ this.tarps = [];
+};
+
+/**
+ * Find all the iframes in the document and cover them with high z-index
+ * transparent divs.
+ */
+Dygraph.IFrameTarp.prototype.cover = function() {
+ var iframes = document.getElementsByTagName("iframe");
+ for (var i = 0; i < iframes.length; i++) {
+ var iframe = iframes[i];
+ var x = Dygraph.findPosX(iframe),
+ y = Dygraph.findPosY(iframe),
+ width = iframe.offsetWidth,
+ height = iframe.offsetHeight;
+
+ var div = document.createElement("div");
+ div.style.position = "absolute";
+ div.style.left = x + 'px';
+ div.style.top = y + 'px';
+ div.style.width = width + 'px';
+ div.style.height = height + 'px';
+ div.style.zIndex = 999;
+ document.body.appendChild(div);
+ this.tarps.push(div);
+ }
+};
+
+/**
+ * Remove all the iframe covers. You should call this in a mouseup handler.
+ */
+Dygraph.IFrameTarp.prototype.uncover = function() {
+ for (var i = 0; i < this.tarps.length; i++) {
+ this.tarps[i].parentNode.removeChild(this.tarps[i]);
+ }
+ this.tarps = [];
+};
projects / dygraphs.git / blobdiff