devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
177 lines (176 loc) • 6.41 kB
JavaScript
/**
* DevExtreme (ui/load_indicator.js)
* Version: 18.1.3
* Build date: Tue May 15 2018
*
* Copyright (c) 2012 - 2018 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
"use strict";
var $ = require("../core/renderer"),
windowUtils = require("../core/utils/window"),
navigator = windowUtils.getNavigator(),
support = require("../core/utils/support"),
themes = require("./themes"),
browser = require("../core/utils/browser"),
extend = require("../core/utils/extend").extend,
devices = require("../core/devices"),
registerComponent = require("../core/component_registrator"),
Widget = require("./widget/ui.widget");
var LOADINDICATOR_CLASS = "dx-loadindicator",
LOADINDICATOR_WRAPPER_CLASS = "dx-loadindicator-wrapper",
LOADINDICATOR_CONTENT_CLASS = "dx-loadindicator-content",
LOADINDICATOR_ICON_CLASS = "dx-loadindicator-icon",
LOADINDICATOR_SEGMENT_CLASS = "dx-loadindicator-segment",
LOADINDICATOR_SEGMENT_INNER_CLASS = "dx-loadindicator-segment-inner",
LOADINDICATOR_IMAGE_CLASS = "dx-loadindicator-image";
var LoadIndicator = Widget.inherit({
_getDefaultOptions: function() {
return extend(this.callBase(), {
indicatorSrc: "",
activeStateEnabled: false,
hoverStateEnabled: false,
_animatingSegmentCount: 1,
_animatingSegmentInner: false
})
},
_defaultOptionsRules: function() {
var themeName = function() {
var currentTheme = themes.current();
return currentTheme && currentTheme.split(".")[0]
};
return this.callBase().concat([{
device: function() {
var realDevice = devices.real(),
obsoleteAndroid = "android" === realDevice.platform && !/chrome/i.test(navigator.userAgent);
return browser.msie && browser.version < 10 || obsoleteAndroid
},
options: {
viaImage: true
}
}, {
device: function() {
return "win8" === themeName() || "win10" === themeName()
},
options: {
_animatingSegmentCount: 5
}
}, {
device: function() {
return "ios7" === themeName()
},
options: {
_animatingSegmentCount: 11
}
}, {
device: function() {
return /(android5|material)/.test(themeName())
},
options: {
_animatingSegmentCount: 2,
_animatingSegmentInner: true
}
}, {
device: function() {
return "generic" === themeName()
},
options: {
_animatingSegmentCount: 7
}
}])
},
_init: function() {
this.callBase();
this.$element().addClass(LOADINDICATOR_CLASS)
},
_initMarkup: function() {
this.callBase();
this._renderWrapper();
this._renderIndicatorContent();
this._renderMarkup()
},
_renderWrapper: function() {
this._$wrapper = $("<div>").addClass(LOADINDICATOR_WRAPPER_CLASS);
this.$element().append(this._$wrapper)
},
_renderIndicatorContent: function() {
this._$content = $("<div>").addClass(LOADINDICATOR_CONTENT_CLASS);
this._$wrapper.append(this._$content)
},
_renderMarkup: function() {
if (support.animation() && !this.option("viaImage") && !this.option("indicatorSrc")) {
this._renderMarkupForAnimation()
} else {
this._renderMarkupForImage()
}
},
_renderMarkupForAnimation: function() {
var animatingSegmentInner = this.option("_animatingSegmentInner");
this._$indicator = $("<div>").addClass(LOADINDICATOR_ICON_CLASS);
this._$content.append(this._$indicator);
for (var i = this.option("_animatingSegmentCount"); i >= 0; --i) {
var $segment = $("<div>").addClass(LOADINDICATOR_SEGMENT_CLASS).addClass(LOADINDICATOR_SEGMENT_CLASS + i);
if (animatingSegmentInner) {
$segment.append($("<div>").addClass(LOADINDICATOR_SEGMENT_INNER_CLASS))
}
this._$indicator.append($segment)
}
},
_renderMarkupForImage: function() {
var indicatorSrc = this.option("indicatorSrc");
this._$wrapper.addClass(LOADINDICATOR_IMAGE_CLASS);
if (indicatorSrc) {
this._$wrapper.css("backgroundImage", "url(" + indicatorSrc + ")")
}
},
_renderDimensions: function() {
this.callBase();
this._updateContentSizeForAnimation()
},
_updateContentSizeForAnimation: function() {
if (!this._$indicator) {
return
}
var width = this.option("width"),
height = this.option("height");
if (width || height) {
width = this.$element().width();
height = this.$element().height();
var minDimension = Math.min(height, width);
this._$wrapper.css({
height: minDimension,
width: minDimension,
fontSize: minDimension
})
}
},
_clean: function() {
this.callBase();
this._removeMarkupForAnimation();
this._removeMarkupForImage()
},
_removeMarkupForAnimation: function() {
if (!this._$indicator) {
return
}
this._$indicator.remove();
delete this._$indicator
},
_removeMarkupForImage: function() {
this._$wrapper.css("backgroundImage", "none")
},
_optionChanged: function(args) {
switch (args.name) {
case "_animatingSegmentCount":
case "_animatingSegmentInner":
case "indicatorSrc":
this._invalidate();
break;
default:
this.callBase(args)
}
}
});
registerComponent("dxLoadIndicator", LoadIndicator);
module.exports = LoadIndicator;
module.exports.default = module.exports;