icingaweb2/public/js/icinga/components/container.js

515 lines
20 KiB
JavaScript

/*global Icinga:false, Modernizr: false, document: false, History: false, define:false require:false base_url:false console:false */
// {{{ICINGA_LICENSE_HEADER}}}
/**
* This file is part of Icinga 2 Web.
*
* Icinga 2 Web - Head for multiple monitoring backends.
* Copyright (C) 2013 Icinga Development Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* @copyright 2013 Icinga Development Team <info@icinga.org>
* @license http://www.gnu.org/licenses/gpl-2.0.txt GPL, version 2
* @author Icinga Development Team <info@icinga.org>
*/
// {{{ICINGA_LICENSE_HEADER}}}
define(['jquery', 'logging', 'icinga/componentLoader', 'URIjs/URI', 'URIjs/URITemplate'],
function($, logger, componentLoader, URI) {
"use strict";
var Icinga;
/**
* Enumeration of possible container types
*
* @type {{GENERIC: string, MAIN: string, DETAIL: string}}
*/
var CONTAINER_TYPES = {
'GENERIC' : 'generic',
'MAIN' : 'icingamain',
'DETAIL': 'icingadetail'
};
/**
* Static reference to the main container, populated on the first 'getMainContainer' call
*
* @type {Container}
*/
var mainContainer = null;
/**
* Static reference to the detail container, populated on the first getDetailContainer call
*
* @type {Container}
*/
var detailContainer = null;
/**
* A handler for accessing icinga containers, i.e. the #icingamain, #icingadetail containers and specific 'app/container'
* components.
*
* This component can be constructed with every object as the parameter and will provide access to the nearest
* container (which could be the applied object itself, if it is a container) wrapping this object.
*
* The windows url should always be modified with this implementation, so an objects context should point to a
* new URL, call new Container('#myObject').updateContainerHref('/my/url')
*
* This requirejs module also registers a global handler catching all links of the main container and rendering
* their content to the main container, in case you don't want to extend the container with additional handlers.
*
* @param {HTMLElement, jQuery, String} target A jQuery resultset, dom element or matcher string
*/
var Container = function(target) {
/**
* Set to true when no history changes should be made
*
* @type {boolean} true to disable History.js calls, false to reenable them
*/
this.freezeHistory = false;
/**
* Return the container that is at the nearest location to this element, or the element itself if it is a container
*
* Containers are either the icingamain and icingadetail ids or components tagged as app/container
*
* @param {String, jQuery, HTMLElement} target The node to use as the starting point
*
* @returns {HTMLElement|null} The nearest container found or null if target is no container
* and no container is above target
*/
var findNearestContainer = function(target) {
target = $(target);
if (target.attr('data-icinga-component') === 'app/container' ||
target.attr('id') === 'icingamain' || target.attr('id') === 'icingadetail') {
return target;
}
return target.parents('[data-icinga-component="app/container"], #icingamain, #icingadetail')[0];
};
/**
* Find the container responsible for target and determine it's type
*
* @param {HTMLElement, jQuery, String} target A jQuery resultset, dom element or matcher string
*/
this.construct = function(target) {
this.containerDom = $(findNearestContainer(target));
this.containerType = CONTAINER_TYPES.GENERIC;
if (this.containerDom.attr('id') === CONTAINER_TYPES.MAIN) {
this.containerType = CONTAINER_TYPES.MAIN;
} else if (this.containerDom.attr('id') === CONTAINER_TYPES.DETAIL) {
this.containerType = CONTAINER_TYPES.DETAIL;
} else {
this.containerType = CONTAINER_TYPES.GENERIC;
}
this.containerDom.attr('data-icinga-href', this.getContainerHref());
if (this.containerDom.data('loadIndicator') !== true) {
this.installDefaultLoadIndicator();
this.containerDom.data('loadIndicator', true);
}
};
/**
* Returns the window without the hostname
*
* @returns {string} path with query, search and hash
*/
var getWindowLocationWithoutHost = function() {
return window.location.pathname + window.location.search + window.location.hash;
};
/**
* Extract and return the main container's location from the current Url
*
* This takes the window's Url and removes the detail part
*
* @returns {string} The Url of the main container
*/
var getMainContainerHrefFromUrl = function(baseUrl) {
// main has the url without the icingadetail part
var href = URI(getWindowLocationWithoutHost(baseUrl));
href.removeQuery('detail');
return href.href();
};
/**
* Return the detail container's location from the current Url
*
* This takes the detail parameter of the url and returns it or
* undefined if no location is given
*
* @returns {string|undefined} The Url of the detail container or undefined if no detail container is active
*/
var getDetailContainerHrefFromUrl = function(baseUrl) {
var location = new URI(baseUrl);
var href = URI.parseQuery(location.query()).detail;
if (!href) {
return;
}
// detail is a query param, so it is possible that (due to a bug or whatever) multiple
// detail fields are declared and returned as arrays
if (typeof href !== 'string') {
href = href[0];
}
// transform the detail parmameter to an Url
return URI(href).href();
};
/**
* Return the Url of this container
*
* This is mostly determined by the Url of the window, but for generic containers we have to rely on the
* "data-icinga-href" attribute of the container (which is also available for main and detail, but less
* reliable during history changes)
*
* @returns {String|undefined} The Url of the container or undefined if the container has no Url set
*/
this.getContainerHref = function(baseUrl) {
baseUrl = baseUrl || getWindowLocationWithoutHost();
switch (this.containerType) {
case CONTAINER_TYPES.MAIN:
return getMainContainerHrefFromUrl(baseUrl);
case CONTAINER_TYPES.DETAIL:
return getDetailContainerHrefFromUrl(baseUrl);
case CONTAINER_TYPES.GENERIC:
if (this.containerDom.attr('data-icinga-href')) {
return URI(this.containerDom.attr('data-icinga-href'));
} else {
return URI(baseUrl).href();
}
}
};
/**
* Return a href with representing the current view, but url as the main container
*
* @param {URI} url The main Url to use as an URI.js object
*
* @returns {URI} The modified URI.js containing the new main and the current detail link
*/
var setMainContainerHref = function(url, baseUrl) {
var detail = getDetailContainerHrefFromUrl(baseUrl);
if (detail) {
url.addQuery('detail', detail);
}
return url;
};
/**
* Return a complete Href string representing the current detail href and the provided main Url
*
* @param {URI} url The detail Url to use as an URI.js object
*
* @returns {URI} The modified URI.js containing the new detail and the current main link
*/
var setDetailContainerHref = function(url, baseUrl) {
var location = new URI(baseUrl);
location.removeQuery('detail');
if (typeof url !== 'undefined') { // no detail Url given
location.addQuery('detail', url);
}
return location;
};
/**
* Create default load mask
*
* @private
*/
var createDefaultLoadIndicator = function() {
this.showDetail();
if (this.containerDom.find('div.load-indicator').length === 0) {
var content = '<div class="load-indicator">' +
'<div class="mask"></div>' +
'<div class="label">Loading</div>' +
'</div>';
$(this.containerDom).append(content);
}
};
/**
* Remove default load mask
*
* @private
*/
var destroyDefaultLoadIndicator = function() {
this.containerDom.find('div.load-indicator').remove();
};
/**
* Update the Url of this container and let the Url reflect the new changes, if required
*
* This updates the window Url and the data-icinga-href attribute of the container. The latter one is required
* to see which url is the last one the container displayed (e.g. after History changes, the url has changed
* but the containers data-icinga-href still points to the containers element).
*
* @param {String|URI} url An Url string or a URI.js object representing the new Url for this container
*
* @return {String} url The new Url of the application (main and detail)
*/
this.updateContainerHref = function(url, baseUrl) {
baseUrl = baseUrl || getWindowLocationWithoutHost();
if (typeof url === "string") {
url = URI(url);
}
var containerUrl, windowUrl;
switch (this.containerType) {
case CONTAINER_TYPES.MAIN:
windowUrl = setMainContainerHref(url, baseUrl);
containerUrl = windowUrl.clone().removeQuery('detail');
break;
case CONTAINER_TYPES.DETAIL:
windowUrl = setDetailContainerHref(url, baseUrl);
containerUrl = url;
break;
case CONTAINER_TYPES.GENERIC:
containerUrl = url;
windowUrl = baseUrl;
break;
}
if (containerUrl) {
this.containerDom.attr('data-icinga-href', containerUrl);
} else {
this.containerDom.removeAttr('data-icinga-href');
}
return windowUrl.href();
};
/**
* Load the provided url, stop all pending requests for this container and call replaceDom for the returned html
*
* This method relaods the page if a 401 (Authorization required) header is encountered
*
* @param {String, URI} url The Url to load or and URI.js object encapsulating it
*/
this.replaceDomFromUrl = function(url) {
this.containerDom.trigger('showLoadIndicator');
Icinga.replaceBodyFromUrl(this.updateContainerHref(url));
};
/**
* Remove all dom nodes from this container and replace them with the ones from domNodes
*
* Triggers the custom "updated" event and causes a rescan for components on the DOM nodes
*
* If keepLayout is given, the detail panel won't be expanded if this is an update for the detail panel,
* otherwise it will be automatically shown.
*
* @param {String, jQuery, HTMLElement, Array} domNodes Any valid representation of the Dom nodes to insert
* @param {boolean} keepLayout Whether to keep the layout untouched, even if detail
* is updated end collapsed
*
* @see registerOnUpdate
*/
this.replaceDom = function(domNodes, keepLayout) {
this.containerDom.trigger('showLoadIndicator');
this.containerDom.empty().append(domNodes);
this.containerDom.trigger('updated', [domNodes]);
this.containerDom.trigger('hideLoadIndicator');
componentLoader.load();
if (!keepLayout) {
if (this.containerType === CONTAINER_TYPES.DETAIL) {
this.showDetail();
}
}
};
/**
* Register a method to be called when this container is updated
*
* @param {function} fn The function to call when the container is updated
*/
this.registerOnUpdate = function(fn) {
this.containerDom.on('updated', fn);
};
/**
* Register a method to show a load indicator
*
* @param {function} fn The function to register
*/
this.registerOnShowLoadIndicator = function(fn) {
this.containerDom.on('showLoadIndicator', fn);
};
/**
* Register a method when load indicator should be removed
*
* @param {function} fn The function to register
*/
this.registerOnHideLoadIndicator = function(fn) {
this.containerDom.on('hideLoadIndicator', fn);
};
/**
* Install default load indicator
*/
this.installDefaultLoadIndicator = function() {
this.registerOnShowLoadIndicator($.proxy(createDefaultLoadIndicator, this));
this.registerOnHideLoadIndicator($.proxy(destroyDefaultLoadIndicator, this));
};
/**
* Remove default load indicator
*/
this.removeDefaultLoadIndicator = function() {
this.containerDom.off('showLoadIndicator');
this.containerDom.off('hideLoadIndicator');
};
this.construct(target);
};
/**
* Static method for detecting whether the given link is external or only browserside (hash links)
*
* @param {String} link The link to test for being site-related
*
* @returns {boolean} True when the link should be executed with the browsers normal behaviour, false
* when the link should be catched and processed internally
*/
Container.isExternalLink = function(link) {
if (link[0] === '#') {
return true;
}
return (/^\/\//).test(URI(link).relativeTo(window.location.href).href());
};
/**
* Return the page's detail container (which is always there)
*
* @returns {Container} The detail container of the page
*/
Container.getDetailContainer = function() {
detailContainer = detailContainer || new Container('#icingadetail');
if(!jQuery.contains(document.body, detailContainer)) {
detailContainer = new Container('#icingadetail');
}
return detailContainer;
};
/**
* Return the page's main container (which is always there)
*
* @returns {Container} The main container of the page
*/
Container.getMainContainer = function() {
mainContainer = mainContainer || new Container('#icingamain');
if(!jQuery.contains(document.body, mainContainer)) {
mainContainer = new Container('#icingamain');
}
return mainContainer;
};
/**
* Expand the detail container and shrinken the main container
*
* Available as a static method on the Container object or as an instance method
*/
Container.prototype.showDetail = Container.showDetail = function() {
var mainDom = Container.getMainContainer().containerDom,
detailDom = Container.getDetailContainer().containerDom;
if (detailDom.find('*').length === 0) {
var mainHeight = $(window).height();
detailDom.append('<div style="height: ' + mainHeight + 'px;"></div>');
}
mainDom.removeClass();
detailDom.removeClass();
mainDom.addClass('col-xs-pull-12 col-sm-pull-12 col-md-pull-12 col-lg-7');
detailDom.addClass('col-xs-push-12 col-sm-push-12 col-md-push-12 col-lg-5');
};
/**
* Hide the detail container and expand the main container
*
* Also updates the Url by removing the detail part
*
* Available as a static method on the Container object or as an instance method
*/
Container.prototype.hideDetail = Container.hideDetail = function() {
var mainDom = Container.getMainContainer().containerDom,
detailDom = Container.getDetailContainer().containerDom;
mainDom.removeClass();
detailDom.removeClass();
mainDom.addClass('col-md-12');
detailDom.addClass('hidden-md');
mainDom.addClass('col-lg-12');
detailDom.addClass('hidden-lg');
mainDom.addClass('col-xs-12');
detailDom.addClass('hidden-xs');
mainDom.addClass('col-sm-12');
detailDom.addClass('hidden-sm');
detailDom.removeAttr('data-icinga-href');
if (typeof this.freezeHistory === 'undefined' || !this.freezeHistory) {
History.replaceState(
{},
document.title,
URI(window.location.href).removeQuery('detail').href()
);
}
};
if (Modernizr.history) {
/**
* Register the click behaviour of the main container, which means that every link, if not catched in a
* more specific handler, causes an update of the main container if it's not external or a browser behaviour link
* (those starting with '#').
*/
$('body').on('click', '#icingamain, #icingadetail', function(ev) {
var targetEl = ev.target || ev.toElement || ev.relatedTarget;
if (targetEl.tagName.toLowerCase() !== 'a') {
return true;
}
if (Container.isExternalLink($(targetEl).attr('href'))) {
return true;
} else {
// detail links render to main by default;
Icinga.replaceBodyFromUrl(
mainContainer.updateContainerHref(URI($(targetEl).attr('href')).href())
);
ev.preventDefault();
ev.stopPropagation();
return false;
}
});
}
/**
* Injects the icinga object into the Container class
*
* This can't be done via requirejs as we would end up in circular references
*
* @param {Icinga} icingaObj The Icinga object to use for reloading
*/
Container.setIcinga = function(icingaObj) {
Icinga = icingaObj;
};
return Container;
});