initial import for Open Source 🎉

2019-11-12 11:09:47 -05:00 · 2019-11-12 11:09:47 -05:00 · 9c0dd3b722
commit 9c0dd3b722
parent 1898c361f3
2048 changed files with 218743 additions and 0 deletions
--- a/config_app/js/services/angular-poll-channel.js
+++ b/config_app/js/services/angular-poll-channel.js
@ -0,0 +1,107 @@
+/**
+ * Specialized class for conducting an HTTP poll, while properly preventing multiple calls.
+ */
+angular.module('quay-config').factory('AngularPollChannel',
+    ['ApiService', '$timeout', 'DocumentVisibilityService', 'CORE_EVENT', '$rootScope',
+    function(ApiService, $timeout, DocumentVisibilityService, CORE_EVENT, $rootScope) {
+  var _PollChannel = function(scope, requester, opt_sleeptime) {
+    this.scope_ = scope;
+    this.requester_ = requester;
+    this.sleeptime_ = opt_sleeptime || (60 * 1000 /* 60s */);
+    this.timer_ = null;
+
+    this.working = false;
+    this.polling = false;
+    this.skipping = false;
+
+    var that = this;
+
+    var visibilityHandler = $rootScope.$on(CORE_EVENT.DOC_VISIBILITY_CHANGE, function() {
+      // If the poll channel was skipping because the visibility was hidden, call it immediately.
+      if (that.skipping && !DocumentVisibilityService.isHidden()) {
+        that.call_();
+      }
+    });
+
+    scope.$on('$destroy', function() {
+      that.stop();
+      visibilityHandler();
+    });
+  };
+
+  _PollChannel.prototype.setSleepTime = function(sleepTime) {
+    this.sleeptime_ = sleepTime;
+    this.stop();
+    this.start(true);
+  };
+
+  _PollChannel.prototype.stop = function() {
+    if (this.timer_) {
+      $timeout.cancel(this.timer_);
+      this.timer_ = null;
+      this.polling = false;
+    }
+
+    this.skipping = false;
+    this.working = false;
+  };
+
+  _PollChannel.prototype.start = function(opt_skipFirstCall) {
+    // Make sure we invoke call outside the normal digest cycle, since
+    // we'll call $scope.$apply ourselves.
+    var that = this;
+    setTimeout(function() {
+      if (opt_skipFirstCall) {
+        that.setupTimer_();
+        return;
+      }
+
+      that.call_();
+    }, 0);
+  };
+
+  _PollChannel.prototype.call_ = function() {
+    if (this.working) { return; }
+
+    // If the document is currently hidden, skip the call.
+    if (DocumentVisibilityService.isHidden()) {
+      this.skipping = true;
+      this.setupTimer_();
+      return;
+    }
+
+    var that = this;
+    this.working = true;
+
+    $timeout(function() {
+      that.requester_(function(status) {
+        if (status) {
+          that.working = false;
+          that.skipping = false;
+          that.setupTimer_();
+        } else {
+          that.stop();
+        }
+      });
+    }, 0);
+  };
+
+  _PollChannel.prototype.setupTimer_ = function() {
+    if (this.timer_) { return; }
+
+    var that = this;
+    this.polling = true;
+    this.timer_ = $timeout(function() {
+      that.timer_ = null;
+      that.call_();
+    }, this.sleeptime_)
+  };
+
+  var service = {
+    'create': function(scope, requester, opt_sleeptime) {
+      return new _PollChannel(scope, requester, opt_sleeptime);
+    }
+  };
+
+  return service;
+}]);