b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
73 lines
1.6 KiB
JavaScript
Executable file
73 lines
1.6 KiB
JavaScript
Executable file
'use strict';
|
|
/* global GaiaGrid */
|
|
|
|
(function(exports) {
|
|
|
|
/**
|
|
* The placeholder represents an empty place on the grid.
|
|
* This is generally used to detect distance from an empty spot on the grid.
|
|
*/
|
|
function Placeholder() {
|
|
this.detail = {
|
|
type: 'placeholder',
|
|
index: 0
|
|
};
|
|
}
|
|
|
|
Placeholder.prototype = {
|
|
|
|
__proto__: GaiaGrid.GridItem.prototype,
|
|
|
|
/**
|
|
* Returns the height in pixels of each icon.
|
|
*/
|
|
get pixelHeight() {
|
|
return this.grid.layout.gridItemHeight;
|
|
},
|
|
|
|
/**
|
|
* When the placeholder is rendered in the last row, for group creation
|
|
* purposes, there is special handling required for height.
|
|
*/
|
|
createsGroupOnDrop: false,
|
|
|
|
/**
|
|
* Width in grid units for each icon.
|
|
*/
|
|
gridWidth: 1,
|
|
|
|
/**
|
|
* Placeholders do not save. They are re-generated on render calls.
|
|
*/
|
|
persistToDB: false,
|
|
|
|
get name() {
|
|
return '';
|
|
},
|
|
|
|
/**
|
|
* Renders a transparent placeholder.
|
|
*/
|
|
render: function() {
|
|
// Generate an element if we need to
|
|
if (!this.element) {
|
|
var tile = document.createElement('div');
|
|
tile.className = 'icon placeholder';
|
|
tile.style.height = this.pixelHeight + 'px';
|
|
this.element = tile;
|
|
this.grid.element.appendChild(tile);
|
|
}
|
|
|
|
this.transform(this.x, this.y, this.grid.layout.percent);
|
|
},
|
|
|
|
remove: function() {
|
|
if (this.element) {
|
|
this.element.parentNode.removeChild(this.element);
|
|
}
|
|
}
|
|
};
|
|
|
|
exports.GaiaGrid.Placeholder = Placeholder;
|
|
|
|
}(window));
|