diff options
Diffstat (limited to 'app/assets/javascripts/droplab/plugins/ajax.js')
-rw-r--r-- | app/assets/javascripts/droplab/plugins/ajax.js | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/app/assets/javascripts/droplab/plugins/ajax.js b/app/assets/javascripts/droplab/plugins/ajax.js new file mode 100644 index 00000000000..12afe53ed76 --- /dev/null +++ b/app/assets/javascripts/droplab/plugins/ajax.js @@ -0,0 +1,65 @@ +/* eslint-disable */ + +const Ajax = { + _loadUrlData: function _loadUrlData(url) { + var self = this; + return new Promise(function(resolve, reject) { + var xhr = new XMLHttpRequest; + xhr.open('GET', url, true); + xhr.onreadystatechange = function () { + if(xhr.readyState === XMLHttpRequest.DONE) { + if (xhr.status === 200) { + var data = JSON.parse(xhr.responseText); + self.cache[url] = data; + return resolve(data); + } else { + return reject([xhr.responseText, xhr.status]); + } + } + }; + xhr.send(); + }); + }, + _loadData: function _loadData(data, config, self) { + if (config.loadingTemplate) { + var dataLoadingTemplate = self.hook.list.list.querySelector('[data-loading-template]'); + if (dataLoadingTemplate) dataLoadingTemplate.outerHTML = self.listTemplate; + } + + if (!self.destroyed) self.hook.list[config.method].call(self.hook.list, data); + }, + init: function init(hook) { + var self = this; + self.destroyed = false; + self.cache = self.cache || {}; + var config = hook.config.Ajax; + this.hook = hook; + if (!config || !config.endpoint || !config.method) { + return; + } + if (config.method !== 'setData' && config.method !== 'addData') { + return; + } + if (config.loadingTemplate) { + var dynamicList = hook.list.list.querySelector('[data-dynamic]'); + var loadingTemplate = document.createElement('div'); + loadingTemplate.innerHTML = config.loadingTemplate; + loadingTemplate.setAttribute('data-loading-template', ''); + this.listTemplate = dynamicList.outerHTML; + dynamicList.outerHTML = loadingTemplate.outerHTML; + } + if (self.cache[config.endpoint]) { + self._loadData(self.cache[config.endpoint], config, self); + } else { + this._loadUrlData(config.endpoint) + .then(function(d) { + self._loadData(d, config, self); + }, config.onError).catch(config.onError); + } + }, + destroy: function() { + this.destroyed = true; + } +}; + +export default Ajax; |