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.
337 lines
9.8 KiB
337 lines
9.8 KiB
var Hammer = require('../../../module/hammer');
|
|
var Item = require('./Item');
|
|
|
|
/**
|
|
* @constructor RangeItem
|
|
* @extends Item
|
|
* @param {Object} data Object containing parameters start, end
|
|
* content, className.
|
|
* @param {{toScreen: function, toTime: function}} conversion
|
|
* Conversion functions from time to screen and vice versa
|
|
* @param {Object} [options] Configuration options
|
|
* // TODO: describe options
|
|
*/
|
|
function RangeItem (data, conversion, options) {
|
|
this.props = {
|
|
content: {
|
|
width: 0
|
|
}
|
|
};
|
|
this.overflow = false; // if contents can overflow (css styling), this flag is set to true
|
|
this.options = options;
|
|
// validate data
|
|
if (data) {
|
|
if (data.start == undefined) {
|
|
throw new Error('Property "start" missing in item ' + data.id);
|
|
}
|
|
if (data.end == undefined) {
|
|
throw new Error('Property "end" missing in item ' + data.id);
|
|
}
|
|
}
|
|
|
|
Item.call(this, data, conversion, options);
|
|
}
|
|
|
|
RangeItem.prototype = new Item (null, null, null);
|
|
|
|
RangeItem.prototype.baseClassName = 'vis-item vis-range';
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
RangeItem.prototype.isVisible = function(range) {
|
|
// determine visibility
|
|
var isVisible =
|
|
// determine horizontal visibillity
|
|
(this.data.start < range.end) &&
|
|
(this.data.end > range.start) &&
|
|
// determine verticaltal visibillity
|
|
(this.parent.top < range.body.domProps.centerContainer.height - range.body.domProps.scrollTop) &&
|
|
(this.parent.top + this.parent.height > - range.body.domProps.scrollTop)
|
|
return isVisible;};
|
|
|
|
/**
|
|
* Repaint the item
|
|
*/
|
|
RangeItem.prototype.redraw = function() {
|
|
var dom = this.dom;
|
|
if (!dom) {
|
|
// create DOM
|
|
this.dom = {};
|
|
dom = this.dom;
|
|
|
|
// background box
|
|
dom.box = document.createElement('div');
|
|
// className is updated in redraw()
|
|
|
|
// frame box (to prevent the item contents from overflowing
|
|
dom.frame = document.createElement('div');
|
|
dom.frame.className = 'vis-item-overflow';
|
|
dom.box.appendChild(dom.frame);
|
|
|
|
// contents box
|
|
dom.content = document.createElement('div');
|
|
dom.content.className = 'vis-item-content';
|
|
dom.frame.appendChild(dom.content);
|
|
|
|
// attach this item as attribute
|
|
dom.box['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.box.parentNode) {
|
|
var foreground = this.parent.dom.foreground;
|
|
if (!foreground) {
|
|
throw new Error('Cannot redraw item: parent has no foreground container element');
|
|
}
|
|
foreground.appendChild(dom.box);
|
|
}
|
|
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.box);
|
|
this._updateDataAttributes(this.dom.box);
|
|
this._updateStyle(this.dom.box);
|
|
|
|
var editable = (this.options.editable.updateTime ||
|
|
this.options.editable.updateGroup ||
|
|
this.editable === true) &&
|
|
this.editable !== false;
|
|
|
|
// update class
|
|
var className = (this.data.className ? (' ' + this.data.className) : '') +
|
|
(this.selected ? ' vis-selected' : '') +
|
|
(editable ? ' vis-editable' : ' vis-readonly');
|
|
dom.box.className = this.baseClassName + className;
|
|
|
|
// determine from css whether this box has overflow
|
|
this.overflow = window.getComputedStyle(dom.frame).overflow !== 'hidden';
|
|
|
|
// recalculate size
|
|
// turn off max-width to be able to calculate the real width
|
|
// this causes an extra browser repaint/reflow, but so be it
|
|
this.dom.content.style.maxWidth = 'none';
|
|
this.props.content.width = this.dom.content.offsetWidth;
|
|
this.height = this.dom.box.offsetHeight;
|
|
this.dom.content.style.maxWidth = '';
|
|
|
|
this.dirty = false;
|
|
}
|
|
this._repaintDeleteButton(dom.box);
|
|
this._repaintDragLeft();
|
|
this._repaintDragRight();
|
|
};
|
|
|
|
/**
|
|
* Show the item in the DOM (when not already visible). The items DOM will
|
|
* be created when needed.
|
|
*/
|
|
RangeItem.prototype.show = function() {
|
|
if (!this.displayed) {
|
|
this.redraw();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Hide the item from the DOM (when visible)
|
|
* @return {Boolean} changed
|
|
*/
|
|
RangeItem.prototype.hide = function() {
|
|
if (this.displayed) {
|
|
var box = this.dom.box;
|
|
|
|
if (box.parentNode) {
|
|
box.parentNode.removeChild(box);
|
|
}
|
|
|
|
this.displayed = false;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Reposition the item horizontally
|
|
* @param {boolean} [limitSize=true] If true (default), the width of the range
|
|
* item will be limited, as the browser cannot
|
|
* display very wide divs. This means though
|
|
* that the applied left and width may
|
|
* not correspond to the ranges start and end
|
|
* @Override
|
|
*/
|
|
RangeItem.prototype.repositionX = function(limitSize) {
|
|
var parentWidth = this.parent.width;
|
|
var start = this.conversion.toScreen(this.data.start);
|
|
var end = this.conversion.toScreen(this.data.end);
|
|
var contentStartPosition;
|
|
var contentWidth;
|
|
|
|
// limit the width of the range, as browsers cannot draw very wide divs
|
|
if (limitSize === undefined || limitSize === true) {
|
|
if (start < -parentWidth) {
|
|
start = -parentWidth;
|
|
}
|
|
if (end > 2 * parentWidth) {
|
|
end = 2 * parentWidth;
|
|
}
|
|
}
|
|
|
|
// add 0.5 to compensate floating-point values rounding
|
|
var boxWidth = Math.max(end - start + 0.5, 1);
|
|
|
|
if (this.overflow) {
|
|
if (this.options.rtl) {
|
|
this.right = start;
|
|
} else {
|
|
this.left = start;
|
|
}
|
|
this.width = boxWidth + this.props.content.width;
|
|
contentWidth = this.props.content.width;
|
|
|
|
// Note: The calculation of width is an optimistic calculation, giving
|
|
// a width which will not change when moving the Timeline
|
|
// So no re-stacking needed, which is nicer for the eye;
|
|
}
|
|
else {
|
|
if (this.options.rtl) {
|
|
this.right = start;
|
|
} else {
|
|
this.left = start;
|
|
}
|
|
this.width = boxWidth;
|
|
contentWidth = Math.min(end - start, this.props.content.width);
|
|
}
|
|
|
|
if (this.options.rtl) {
|
|
this.dom.box.style.right = this.right + 'px';
|
|
} else {
|
|
this.dom.box.style.left = this.left + 'px';
|
|
}
|
|
this.dom.box.style.width = boxWidth + 'px';
|
|
|
|
switch (this.options.align) {
|
|
case 'left':
|
|
if (this.options.rtl) {
|
|
this.dom.content.style.right = '0';
|
|
} else {
|
|
this.dom.content.style.left = '0';
|
|
}
|
|
break;
|
|
|
|
case 'right':
|
|
if (this.options.rtl) {
|
|
this.dom.content.style.right = Math.max((boxWidth - contentWidth), 0) + 'px';
|
|
} else {
|
|
this.dom.content.style.left = Math.max((boxWidth - contentWidth), 0) + 'px';
|
|
}
|
|
break;
|
|
|
|
case 'center':
|
|
if (this.options.rtl) {
|
|
this.dom.content.style.right = Math.max((boxWidth - contentWidth) / 2, 0) + 'px';
|
|
} else {
|
|
this.dom.content.style.left = Math.max((boxWidth - contentWidth) / 2, 0) + 'px';
|
|
}
|
|
|
|
break;
|
|
|
|
default: // 'auto'
|
|
// when range exceeds left of the window, position the contents at the left of the visible area
|
|
if (this.overflow) {
|
|
if (end > 0) {
|
|
contentStartPosition = Math.max(-start, 0);
|
|
}
|
|
else {
|
|
contentStartPosition = -contentWidth; // ensure it's not visible anymore
|
|
}
|
|
}
|
|
else {
|
|
if (start < 0) {
|
|
contentStartPosition = -start;
|
|
}
|
|
else {
|
|
contentStartPosition = 0;
|
|
}
|
|
}
|
|
if (this.options.rtl) {
|
|
this.dom.content.style.right = contentStartPosition + 'px';
|
|
} else {
|
|
this.dom.content.style.left = contentStartPosition + 'px';
|
|
this.dom.content.style.width = 'calc(100% - ' + contentStartPosition + 'px)';
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Reposition the item vertically
|
|
* @Override
|
|
*/
|
|
RangeItem.prototype.repositionY = function() {
|
|
var orientation = this.options.orientation.item;
|
|
var box = this.dom.box;
|
|
|
|
if (orientation == 'top') {
|
|
box.style.top = this.top + 'px';
|
|
}
|
|
else {
|
|
box.style.top = (this.parent.height - this.top - this.height) + 'px';
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Repaint a drag area on the left side of the range when the range is selected
|
|
* @protected
|
|
*/
|
|
RangeItem.prototype._repaintDragLeft = function () {
|
|
if (this.selected && this.options.editable.updateTime && !this.dom.dragLeft) {
|
|
// create and show drag area
|
|
var dragLeft = document.createElement('div');
|
|
dragLeft.className = 'vis-drag-left';
|
|
dragLeft.dragLeftItem = this;
|
|
|
|
this.dom.box.appendChild(dragLeft);
|
|
this.dom.dragLeft = dragLeft;
|
|
}
|
|
else if (!this.selected && this.dom.dragLeft) {
|
|
// delete drag area
|
|
if (this.dom.dragLeft.parentNode) {
|
|
this.dom.dragLeft.parentNode.removeChild(this.dom.dragLeft);
|
|
}
|
|
this.dom.dragLeft = null;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Repaint a drag area on the right side of the range when the range is selected
|
|
* @protected
|
|
*/
|
|
RangeItem.prototype._repaintDragRight = function () {
|
|
if (this.selected && this.options.editable.updateTime && !this.dom.dragRight) {
|
|
// create and show drag area
|
|
var dragRight = document.createElement('div');
|
|
dragRight.className = 'vis-drag-right';
|
|
dragRight.dragRightItem = this;
|
|
|
|
this.dom.box.appendChild(dragRight);
|
|
this.dom.dragRight = dragRight;
|
|
}
|
|
else if (!this.selected && this.dom.dragRight) {
|
|
// delete drag area
|
|
if (this.dom.dragRight.parentNode) {
|
|
this.dom.dragRight.parentNode.removeChild(this.dom.dragRight);
|
|
}
|
|
this.dom.dragRight = null;
|
|
}
|
|
};
|
|
|
|
module.exports = RangeItem;
|