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.
259 lines
6.1 KiB
259 lines
6.1 KiB
var Hammer = require('../../../module/hammer');
|
|
var util = require('../../../util');
|
|
|
|
/**
|
|
* @constructor Item
|
|
* @param {Object} data Object containing (optional) parameters type,
|
|
* start, end, content, group, 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 Item (data, conversion, options) {
|
|
this.id = null;
|
|
this.parent = null;
|
|
this.data = data;
|
|
this.dom = null;
|
|
this.conversion = conversion || {};
|
|
this.options = options || {};
|
|
|
|
this.selected = false;
|
|
this.displayed = false;
|
|
this.dirty = true;
|
|
|
|
this.top = null;
|
|
this.left = null;
|
|
this.width = null;
|
|
this.height = null;
|
|
}
|
|
|
|
Item.prototype.stack = true;
|
|
|
|
/**
|
|
* Select current item
|
|
*/
|
|
Item.prototype.select = function() {
|
|
this.selected = true;
|
|
this.dirty = true;
|
|
if (this.displayed) this.redraw();
|
|
};
|
|
|
|
/**
|
|
* Unselect current item
|
|
*/
|
|
Item.prototype.unselect = function() {
|
|
this.selected = false;
|
|
this.dirty = true;
|
|
if (this.displayed) this.redraw();
|
|
};
|
|
|
|
/**
|
|
* Set data for the item. Existing data will be updated. The id should not
|
|
* be changed. When the item is displayed, it will be redrawn immediately.
|
|
* @param {Object} data
|
|
*/
|
|
Item.prototype.setData = function(data) {
|
|
this.data = data;
|
|
this.dirty = true;
|
|
if (this.displayed) this.redraw();
|
|
};
|
|
|
|
/**
|
|
* Set a parent for the item
|
|
* @param {ItemSet | Group} parent
|
|
*/
|
|
Item.prototype.setParent = function(parent) {
|
|
if (this.displayed) {
|
|
this.hide();
|
|
this.parent = parent;
|
|
if (this.parent) {
|
|
this.show();
|
|
}
|
|
}
|
|
else {
|
|
this.parent = parent;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
Item.prototype.isVisible = function(range) {
|
|
// Should be implemented by Item implementations
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* Show the Item in the DOM (when not already visible)
|
|
* @return {Boolean} changed
|
|
*/
|
|
Item.prototype.show = function() {
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* Hide the Item from the DOM (when visible)
|
|
* @return {Boolean} changed
|
|
*/
|
|
Item.prototype.hide = function() {
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* Repaint the item
|
|
*/
|
|
Item.prototype.redraw = function() {
|
|
// should be implemented by the item
|
|
};
|
|
|
|
/**
|
|
* Reposition the Item horizontally
|
|
*/
|
|
Item.prototype.repositionX = function() {
|
|
// should be implemented by the item
|
|
};
|
|
|
|
/**
|
|
* Reposition the Item vertically
|
|
*/
|
|
Item.prototype.repositionY = function() {
|
|
// should be implemented by the item
|
|
};
|
|
|
|
/**
|
|
* Repaint a delete button on the top right of the item when the item is selected
|
|
* @param {HTMLElement} anchor
|
|
* @protected
|
|
*/
|
|
Item.prototype._repaintDeleteButton = function (anchor) {
|
|
if (this.selected && this.options.editable.remove && !this.dom.deleteButton) {
|
|
// create and show button
|
|
var me = this;
|
|
|
|
var deleteButton = document.createElement('div');
|
|
deleteButton.className = 'delete';
|
|
deleteButton.title = 'Delete this item';
|
|
|
|
Hammer(deleteButton, {
|
|
preventDefault: true
|
|
}).on('tap', function (event) {
|
|
me.parent.removeFromDataSet(me);
|
|
event.stopPropagation();
|
|
});
|
|
|
|
anchor.appendChild(deleteButton);
|
|
this.dom.deleteButton = deleteButton;
|
|
}
|
|
else if (!this.selected && this.dom.deleteButton) {
|
|
// remove button
|
|
if (this.dom.deleteButton.parentNode) {
|
|
this.dom.deleteButton.parentNode.removeChild(this.dom.deleteButton);
|
|
}
|
|
this.dom.deleteButton = null;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Set HTML contents for the item
|
|
* @param {Element} element HTML element to fill with the contents
|
|
* @private
|
|
*/
|
|
Item.prototype._updateContents = function (element) {
|
|
var content;
|
|
if (this.options.template) {
|
|
var itemData = this.parent.itemSet.itemsData.get(this.id); // get a clone of the data from the dataset
|
|
content = this.options.template(itemData);
|
|
}
|
|
else {
|
|
content = this.data.content;
|
|
}
|
|
|
|
if(content !== this.content) {
|
|
// only replace the content when changed
|
|
if (content instanceof Element) {
|
|
element.innerHTML = '';
|
|
element.appendChild(content);
|
|
}
|
|
else if (content != undefined) {
|
|
element.innerHTML = content;
|
|
}
|
|
else {
|
|
if (!(this.data.type == 'background' && this.data.content === undefined)) {
|
|
throw new Error('Property "content" missing in item ' + this.id);
|
|
}
|
|
}
|
|
|
|
this.content = content;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Set HTML contents for the item
|
|
* @param {Element} element HTML element to fill with the contents
|
|
* @private
|
|
*/
|
|
Item.prototype._updateTitle = function (element) {
|
|
if (this.data.title != null) {
|
|
element.title = this.data.title || '';
|
|
}
|
|
else {
|
|
element.removeAttribute('title');
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Process dataAttributes timeline option and set as data- attributes on dom.content
|
|
* @param {Element} element HTML element to which the attributes will be attached
|
|
* @private
|
|
*/
|
|
Item.prototype._updateDataAttributes = function(element) {
|
|
if (this.options.dataAttributes && this.options.dataAttributes.length > 0) {
|
|
var attributes = [];
|
|
|
|
if (Array.isArray(this.options.dataAttributes)) {
|
|
attributes = this.options.dataAttributes;
|
|
}
|
|
else if (this.options.dataAttributes == 'all') {
|
|
attributes = Object.keys(this.data);
|
|
}
|
|
else {
|
|
return;
|
|
}
|
|
|
|
for (var i = 0; i < attributes.length; i++) {
|
|
var name = attributes[i];
|
|
var value = this.data[name];
|
|
|
|
if (value != null) {
|
|
element.setAttribute('data-' + name, value);
|
|
}
|
|
else {
|
|
element.removeAttribute('data-' + name);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Update custom styles of the element
|
|
* @param element
|
|
* @private
|
|
*/
|
|
Item.prototype._updateStyle = function(element) {
|
|
// remove old styles
|
|
if (this.style) {
|
|
util.removeCssText(element, this.style);
|
|
this.style = null;
|
|
}
|
|
|
|
// append new styles
|
|
if (this.data.style) {
|
|
util.addCssText(element, this.data.style);
|
|
this.style = this.data.style;
|
|
}
|
|
};
|
|
|
|
module.exports = Item;
|