You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
183 lines
4.8 KiB
183 lines
4.8 KiB
var Item = require('./Item');
|
|
|
|
/**
|
|
* @constructor PointItem
|
|
* @extends Item
|
|
* @param {Object} data Object containing parameters start
|
|
* content, className.
|
|
* @param {{toScreen: function, toTime: function}} conversion
|
|
* Conversion functions from time to screen and vice versa
|
|
* @param {Object} [options] Configuration options
|
|
* // TODO: describe available options
|
|
*/
|
|
function PointItem (data, conversion, options) {
|
|
this.props = {
|
|
dot: {
|
|
top: 0,
|
|
width: 0,
|
|
height: 0
|
|
},
|
|
content: {
|
|
height: 0,
|
|
marginLeft: 0
|
|
}
|
|
};
|
|
|
|
// validate data
|
|
if (data) {
|
|
if (data.start == undefined) {
|
|
throw new Error('Property "start" missing in item ' + data);
|
|
}
|
|
}
|
|
|
|
Item.call(this, data, conversion, options);
|
|
}
|
|
|
|
PointItem.prototype = new Item (null, null, null);
|
|
|
|
/**
|
|
* Check whether this item is visible inside given range
|
|
* @returns {{start: Number, end: Number}} range with a timestamp for start and end
|
|
* @returns {boolean} True if visible
|
|
*/
|
|
PointItem.prototype.isVisible = function(range) {
|
|
// determine visibility
|
|
// TODO: account for the real width of the item. Right now we just add 1/4 to the window
|
|
var interval = (range.end - range.start) / 4;
|
|
return (this.data.start > range.start - interval) && (this.data.start < range.end + interval);
|
|
};
|
|
|
|
/**
|
|
* Repaint the item
|
|
*/
|
|
PointItem.prototype.redraw = function() {
|
|
var dom = this.dom;
|
|
if (!dom) {
|
|
// create DOM
|
|
this.dom = {};
|
|
dom = this.dom;
|
|
|
|
// background box
|
|
dom.point = document.createElement('div');
|
|
// className is updated in redraw()
|
|
|
|
// contents box, right from the dot
|
|
dom.content = document.createElement('div');
|
|
dom.content.className = 'vis-item-content';
|
|
dom.point.appendChild(dom.content);
|
|
|
|
// dot at start
|
|
dom.dot = document.createElement('div');
|
|
dom.point.appendChild(dom.dot);
|
|
|
|
// attach this item as attribute
|
|
dom.point['timeline-item'] = this;
|
|
|
|
this.dirty = true;
|
|
}
|
|
|
|
// append DOM to parent DOM
|
|
if (!this.parent) {
|
|
throw new Error('Cannot redraw item: no parent attached');
|
|
}
|
|
if (!dom.point.parentNode) {
|
|
var foreground = this.parent.dom.foreground;
|
|
if (!foreground) {
|
|
throw new Error('Cannot redraw item: parent has no foreground container element');
|
|
}
|
|
foreground.appendChild(dom.point);
|
|
}
|
|
this.displayed = true;
|
|
|
|
// Update DOM when item is marked dirty. An item is marked dirty when:
|
|
// - the item is not yet rendered
|
|
// - the item's data is changed
|
|
// - the item is selected/deselected
|
|
if (this.dirty) {
|
|
this._updateContents(this.dom.content);
|
|
this._updateTitle(this.dom.point);
|
|
this._updateDataAttributes(this.dom.point);
|
|
this._updateStyle(this.dom.point);
|
|
|
|
// update class
|
|
var className = (this.data.className ? ' ' + this.data.className : '') +
|
|
(this.selected ? ' vis-selected' : '');
|
|
dom.point.className = 'vis-item vis-point' + className;
|
|
dom.dot.className = 'vis-item vis-dot' + className;
|
|
|
|
// recalculate size
|
|
this.width = dom.point.offsetWidth;
|
|
this.height = dom.point.offsetHeight;
|
|
this.props.dot.width = dom.dot.offsetWidth;
|
|
this.props.dot.height = dom.dot.offsetHeight;
|
|
this.props.content.height = dom.content.offsetHeight;
|
|
|
|
// resize contents
|
|
dom.content.style.marginLeft = 2 * this.props.dot.width + 'px';
|
|
//dom.content.style.marginRight = ... + 'px'; // TODO: margin right
|
|
|
|
dom.dot.style.top = ((this.height - this.props.dot.height) / 2) + 'px';
|
|
dom.dot.style.left = (this.props.dot.width / 2) + 'px';
|
|
|
|
this.dirty = false;
|
|
}
|
|
|
|
this._repaintDeleteButton(dom.point);
|
|
};
|
|
|
|
/**
|
|
* Show the item in the DOM (when not already visible). The items DOM will
|
|
* be created when needed.
|
|
*/
|
|
PointItem.prototype.show = function() {
|
|
if (!this.displayed) {
|
|
this.redraw();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Hide the item from the DOM (when visible)
|
|
*/
|
|
PointItem.prototype.hide = function() {
|
|
if (this.displayed) {
|
|
if (this.dom.point.parentNode) {
|
|
this.dom.point.parentNode.removeChild(this.dom.point);
|
|
}
|
|
|
|
this.top = null;
|
|
this.left = null;
|
|
|
|
this.displayed = false;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Reposition the item horizontally
|
|
* @Override
|
|
*/
|
|
PointItem.prototype.repositionX = function() {
|
|
var start = this.conversion.toScreen(this.data.start);
|
|
|
|
this.left = start - this.props.dot.width;
|
|
|
|
// reposition point
|
|
this.dom.point.style.left = this.left + 'px';
|
|
};
|
|
|
|
/**
|
|
* Reposition the item vertically
|
|
* @Override
|
|
*/
|
|
PointItem.prototype.repositionY = function() {
|
|
var orientation = this.options.orientation,
|
|
point = this.dom.point;
|
|
|
|
if (orientation == 'top') {
|
|
point.style.top = this.top + 'px';
|
|
}
|
|
else {
|
|
point.style.top = (this.parent.height - this.top - this.height) + 'px';
|
|
}
|
|
};
|
|
|
|
module.exports = PointItem;
|