kendo.imagebrowser.js
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/**
* Kendo UI v2016.1.112 (http://www.telerik.com/kendo-ui)
* Copyright 2016 Telerik AD. All rights reserved.
*
* Kendo UI commercial licenses may be obtained at
* http://www.telerik.com/purchase/license-agreement/kendo-ui-complete
* If you do not own a commercial license, this file shall be governed by the trial license terms.
*/
(function (f, define) {
define('kendo.imagebrowser', ['kendo.filebrowser'], f);
}(function () {
var __meta__ = {
id: 'imagebrowser',
name: 'ImageBrowser',
category: 'web',
description: '',
hidden: true,
depends: ['filebrowser']
};
(function ($, undefined) {
var kendo = window.kendo, FileBrowser = kendo.ui.FileBrowser, isPlainObject = $.isPlainObject, proxy = $.proxy, extend = $.extend, browser = kendo.support.browser, isFunction = kendo.isFunction, trimSlashesRegExp = /(^\/|\/$)/g, ERROR = 'error', NS = '.kendoImageBrowser', NAMEFIELD = 'name', SIZEFIELD = 'size', TYPEFIELD = 'type', DEFAULTSORTORDER = {
field: TYPEFIELD,
dir: 'asc'
}, EMPTYTILE = kendo.template('<li class="k-tile-empty"><strong>${text}</strong></li>');
extend(true, kendo.data, {
schemas: {
'imagebrowser': {
data: function (data) {
return data.items || data || [];
},
model: {
id: 'name',
fields: {
name: 'name',
size: 'size',
type: 'type'
}
}
}
}
});
extend(true, kendo.data, {
transports: {
'imagebrowser': kendo.data.RemoteTransport.extend({
init: function (options) {
kendo.data.RemoteTransport.fn.init.call(this, $.extend(true, {}, this.options, options));
},
_call: function (type, options) {
options.data = $.extend({}, options.data, { path: this.options.path() });
if (isFunction(this.options[type])) {
this.options[type].call(this, options);
} else {
kendo.data.RemoteTransport.fn[type].call(this, options);
}
},
read: function (options) {
this._call('read', options);
},
create: function (options) {
this._call('create', options);
},
destroy: function (options) {
this._call('destroy', options);
},
update: function () {
},
options: {
read: { type: 'POST' },
update: { type: 'POST' },
create: { type: 'POST' },
destroy: { type: 'POST' }
}
})
}
});
var offsetTop;
if (browser.msie && browser.version < 8) {
offsetTop = function (element) {
return element.offsetTop;
};
} else {
offsetTop = function (element) {
return element.offsetTop - $(element).height();
};
}
function concatPaths(path, name) {
if (path === undefined || !path.match(/\/$/)) {
path = (path || '') + '/';
}
return path + name;
}
function sizeFormatter(value) {
if (!value) {
return '';
}
var suffix = ' bytes';
if (value >= 1073741824) {
suffix = ' GB';
value /= 1073741824;
} else if (value >= 1048576) {
suffix = ' MB';
value /= 1048576;
} else if (value >= 1024) {
suffix = ' KB';
value /= 1024;
}
return Math.round(value * 100) / 100 + suffix;
}
var ImageBrowser = FileBrowser.extend({
init: function (element, options) {
var that = this;
options = options || {};
FileBrowser.fn.init.call(that, element, options);
that.element.addClass('k-imagebrowser');
},
options: {
name: 'ImageBrowser',
fileTypes: '*.png,*.gif,*.jpg,*.jpeg'
},
value: function () {
var that = this, selected = that._selectedItem(), path, imageUrl = that.options.transport.imageUrl;
if (selected && selected.get(TYPEFIELD) === 'f') {
path = concatPaths(that.path(), selected.get(NAMEFIELD)).replace(trimSlashesRegExp, '');
if (imageUrl) {
path = isFunction(imageUrl) ? imageUrl(path) : kendo.format(imageUrl, encodeURIComponent(path));
}
return path;
}
},
_fileUpload: function (e) {
var that = this, options = that.options, fileTypes = options.fileTypes, filterRegExp = new RegExp(('(' + fileTypes.split(',').join(')|(') + ')').replace(/\*\./g, '.*.'), 'i'), fileName = e.files[0].name, fileNameField = NAMEFIELD, sizeField = SIZEFIELD, model;
if (filterRegExp.test(fileName)) {
e.data = { path: that.path() };
model = that._createFile(fileName);
if (!model) {
e.preventDefault();
} else {
model._uploading = true;
that.upload.one('success', function (e) {
delete model._uploading;
model.set(fileNameField, e.response[that._getFieldName(fileNameField)]);
model.set(sizeField, e.response[that._getFieldName(sizeField)]);
that._tiles = that.listView.items().filter('[' + kendo.attr('type') + '=f]');
that._scroll();
});
}
} else {
e.preventDefault();
that._showMessage(kendo.format(options.messages.invalidFileType, fileName, fileTypes));
}
},
_content: function () {
var that = this;
that.list = $('<ul class="k-reset k-floats k-tiles" />').appendTo(that.element).on('scroll' + NS, proxy(that._scroll, that)).on('dblclick' + NS, 'li', proxy(that._dblClick, that));
that.listView = new kendo.ui.ListView(that.list, {
dataSource: that.dataSource,
template: that._itemTmpl(),
editTemplate: that._editTmpl(),
selectable: true,
autoBind: false,
dataBinding: function (e) {
that.toolbar.find('.k-delete').parent().addClass('k-state-disabled');
if (e.action === 'remove' || e.action === 'sync') {
e.preventDefault();
}
},
dataBound: function () {
if (that.dataSource.view().length) {
that._tiles = this.items().filter('[' + kendo.attr('type') + '=f]');
that._scroll();
} else {
this.wrapper.append(EMPTYTILE({ text: that.options.messages.emptyFolder }));
}
},
change: proxy(that._listViewChange, that)
});
},
_dataSource: function () {
var that = this, options = that.options, transport = options.transport, typeSortOrder = extend({}, DEFAULTSORTORDER), nameSortOrder = {
field: NAMEFIELD,
dir: 'asc'
}, schema, dataSource = {
type: transport.type || 'imagebrowser',
sort: [
typeSortOrder,
nameSortOrder
]
};
if (isPlainObject(transport)) {
transport.path = proxy(that.path, that);
dataSource.transport = transport;
}
if (isPlainObject(options.schema)) {
dataSource.schema = options.schema;
} else if (transport.type && isPlainObject(kendo.data.schemas[transport.type])) {
schema = kendo.data.schemas[transport.type];
}
if (that.dataSource && that._errorHandler) {
that.dataSource.unbind(ERROR, that._errorHandler);
} else {
that._errorHandler = proxy(that._error, that);
}
that.dataSource = kendo.data.DataSource.create(dataSource).bind(ERROR, that._errorHandler);
},
_loadImage: function (li) {
var that = this, element = $(li), dataItem = that.dataSource.getByUid(element.attr(kendo.attr('uid'))), name = dataItem.get(NAMEFIELD), thumbnailUrl = that.options.transport.thumbnailUrl, img = $('<img />', { alt: name }), urlJoin = '?';
if (dataItem._uploading) {
return;
}
img.hide().on('load' + NS, function () {
$(this).prev().remove().end().addClass('k-image').fadeIn();
});
element.find('.k-loading').after(img);
if (isFunction(thumbnailUrl)) {
thumbnailUrl = thumbnailUrl(that.path(), encodeURIComponent(name));
} else {
if (thumbnailUrl.indexOf('?') >= 0) {
urlJoin = '&';
}
thumbnailUrl = thumbnailUrl + urlJoin + 'path=' + that.path() + encodeURIComponent(name);
if (dataItem._forceReload) {
thumbnailUrl += '&_=' + new Date().getTime();
delete dataItem._forceReload;
}
}
img.attr('src', thumbnailUrl);
li.loaded = true;
},
_scroll: function () {
var that = this;
if (that.options.transport && that.options.transport.thumbnailUrl) {
clearTimeout(that._timeout);
that._timeout = setTimeout(function () {
var height = that.list.outerHeight(), viewTop = that.list.scrollTop(), viewBottom = viewTop + height;
that._tiles.each(function () {
var top = offsetTop(this), bottom = top + this.offsetHeight;
if (top >= viewTop && top < viewBottom || bottom >= viewTop && bottom < viewBottom) {
that._loadImage(this);
}
if (top > viewBottom) {
return false;
}
});
that._tiles = that._tiles.filter(function () {
return !this.loaded;
});
}, 250);
}
},
_itemTmpl: function () {
var that = this, html = '<li class="k-tile" ' + kendo.attr('uid') + '="#=uid#" ';
html += kendo.attr('type') + '="${' + TYPEFIELD + '}">';
html += '#if(' + TYPEFIELD + ' == "d") { #';
html += '<div class="k-thumb"><span class="k-icon k-folder"></span></div>';
html += '#}else{#';
if (that.options.transport && that.options.transport.thumbnailUrl) {
html += '<div class="k-thumb"><span class="k-icon k-loading"></span></div>';
} else {
html += '<div class="k-thumb"><span class="k-icon k-file"></span></div>';
}
html += '#}#';
html += '<strong>${' + NAMEFIELD + '}</strong>';
html += '#if(' + TYPEFIELD + ' == "f") { # <span class="k-filesize">${this.sizeFormatter(' + SIZEFIELD + ')}</span> #}#';
html += '</li>';
return proxy(kendo.template(html), { sizeFormatter: sizeFormatter });
}
});
kendo.ui.plugin(ImageBrowser);
}(window.kendo.jQuery));
return window.kendo;
}, typeof define == 'function' && define.amd ? define : function (a1, a2, a3) {
(a3 || a2)();
}));