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132 lines
3.3 KiB
132 lines
3.3 KiB
/**
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* Popup is a class to create a popup window with some text
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* @param {Element} container The container object.
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* @param {Number} [x]
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* @param {Number} [y]
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* @param {String} [text]
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* @param {Object} [style] An object containing borderColor,
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* backgroundColor, etc.
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*/
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function Popup(container, x, y, text, style) {
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if (container) {
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this.container = container;
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}
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else {
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this.container = document.body;
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}
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// x, y and text are optional, see if a style object was passed in their place
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if (style === undefined) {
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if (typeof x === "object") {
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style = x;
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x = undefined;
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} else if (typeof text === "object") {
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style = text;
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text = undefined;
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} else {
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// for backwards compatibility, in case clients other than Graph are creating Popup directly
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style = {
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fontColor: 'black',
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fontSize: 14, // px
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fontFace: 'verdana',
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color: {
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border: '#666',
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background: '#FFFFC6'
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}
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}
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}
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}
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this.x = 0;
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this.y = 0;
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this.padding = 5;
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if (x !== undefined && y !== undefined ) {
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this.setPosition(x, y);
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}
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if (text !== undefined) {
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this.setText(text);
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}
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// create the frame
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this.frame = document.createElement("div");
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var styleAttr = this.frame.style;
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styleAttr.position = "absolute";
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styleAttr.visibility = "hidden";
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styleAttr.border = "1px solid " + style.color.border;
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styleAttr.color = style.fontColor;
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styleAttr.fontSize = style.fontSize + "px";
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styleAttr.fontFamily = style.fontFace;
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styleAttr.padding = this.padding + "px";
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styleAttr.backgroundColor = style.color.background;
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styleAttr.borderRadius = "3px";
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styleAttr.MozBorderRadius = "3px";
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styleAttr.WebkitBorderRadius = "3px";
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styleAttr.boxShadow = "3px 3px 10px rgba(128, 128, 128, 0.5)";
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styleAttr.whiteSpace = "nowrap";
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this.container.appendChild(this.frame);
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}
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/**
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* @param {number} x Horizontal position of the popup window
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* @param {number} y Vertical position of the popup window
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*/
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Popup.prototype.setPosition = function(x, y) {
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this.x = parseInt(x);
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this.y = parseInt(y);
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};
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/**
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* Set the text for the popup window. This can be HTML code
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* @param {string} text
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*/
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Popup.prototype.setText = function(text) {
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this.frame.innerHTML = text;
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};
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/**
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* Show the popup window
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* @param {boolean} show Optional. Show or hide the window
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*/
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Popup.prototype.show = function (show) {
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if (show === undefined) {
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show = true;
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}
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if (show) {
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var height = this.frame.clientHeight;
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var width = this.frame.clientWidth;
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var maxHeight = this.frame.parentNode.clientHeight;
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var maxWidth = this.frame.parentNode.clientWidth;
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var top = (this.y - height);
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if (top + height + this.padding > maxHeight) {
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top = maxHeight - height - this.padding;
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}
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if (top < this.padding) {
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top = this.padding;
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}
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var left = this.x;
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if (left + width + this.padding > maxWidth) {
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left = maxWidth - width - this.padding;
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}
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if (left < this.padding) {
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left = this.padding;
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}
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this.frame.style.left = left + "px";
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this.frame.style.top = top + "px";
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this.frame.style.visibility = "visible";
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}
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else {
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this.hide();
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}
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};
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/**
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* Hide the popup window
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*/
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Popup.prototype.hide = function () {
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this.frame.style.visibility = "hidden";
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};
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