From 34d0f228dcca99e396815c837af38fbae5569e7a Mon Sep 17 00:00:00 2001
From: Barbara Miller <galgeek@me.com>
Date: Mon, 9 May 2016 22:50:40 -0700
Subject: [PATCH] multiclicks behavior

---
 brozzler/behaviors.d/multiclicks.js.template | 105 +++++++++++++++++++
 brozzler/behaviors.yaml                      |   6 ++
 2 files changed, 111 insertions(+)
 create mode 100644 brozzler/behaviors.d/multiclicks.js.template

diff --git a/brozzler/behaviors.d/multiclicks.js.template b/brozzler/behaviors.d/multiclicks.js.template
new file mode 100644
index 0000000..7a39469
--- /dev/null
+++ b/brozzler/behaviors.d/multiclicks.js.template
@@ -0,0 +1,105 @@
+/*
+ * brozzler/behaviors.d/multiclicks.js.template - click on each of several elements
+ *
+ * Copyright (C) 2014-2016 Internet Archive
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+var umbraAboveBelowOrOnScreen = function(e) {
+  var eTop = e.getBoundingClientRect().top;
+  if (eTop < window.scrollY) {
+    return -1; // above
+  } else if (eTop > window.scrollY + window.innerHeight) {
+    return 1;  // below
+  } else {
+    return 0;  // on screen
+  }
+}
+
+var umbraState = {'idleSince':null};
+var umbraAlreadyClicked = {};
+
+var umbraIntervalFunc = function() {
+	var clickedSomething = false;
+	var somethingLeftBelow = false;
+	var somethingLeftAbove = false;
+	var cssSelector = "${css_selector}";
+
+	var clickTargets = document.querySelectorAll(cssSelector);
+
+	for (var i = 0; i < clickTargets.length; i++) {
+		targetID = clickTargets[i].id;
+		if (targetID === "") {
+			targetID = location.host + "-" + i;
+		}
+		if (!(targetID in umbraAlreadyClicked)) {
+			var where = umbraAboveBelowOrOnScreen(clickTargets[i]);
+			if (where === 0) {
+				var mouseOverEvent = document.createEvent('Events');
+				mouseOverEvent.initEvent("mouseover", true, false);
+				clickTargets[i].dispatchEvent(mouseOverEvent);
+				clickTargets[i].click();
+				clickedSomething = true;
+				umbraState.idleSince = null;
+				umbraAlreadyClicked[targetID] = true;
+				break; //break from clickTargets loop
+
+			} else if (where > 0) {
+				somethingLeftBelow = true;
+			} else if (where < 0) {
+				somethingLeftAbove = true;
+			}
+		}
+	}
+
+	if (!clickedSomething) {
+		if (somethingLeftAbove) {
+			// console.log("scrolling UP because everything on this screen has been clicked but we missed something above");
+			window.scrollBy(0, -500);
+			umbraState.idleSince = null;
+		} else if (somethingLeftBelow) {
+			// console.log("scrolling because everything on this screen has been clicked but there's more below document.body.clientHeight="
+			// 				+ document.body.clientHeight);
+			window.scrollBy(0, 200);
+			umbraState.idleSince = null;
+		} else if (window.scrollY + window.innerHeight < document.documentElement.scrollHeight) {
+			window.scrollBy(0, 200);
+			umbraState.idleSince = null;
+		} else if (umbraState.idleSince == null) {
+			umbraState.idleSince = Date.now();
+		}
+	}
+
+	if (umbraState.idleSince == null) {
+		umbraState.idleSince = Date.now();
+	}
+}
+
+// If we haven't had anything to do (scrolled, clicked, etc) in this amount of
+// time, then we consider ourselves finished with the page.
+var UMBRA_USER_ACTION_IDLE_TIMEOUT_SEC = 12;
+
+// Called from outside of this script.
+var umbraBehaviorFinished = function() {
+  if (umbraState.idleSince != null) {
+    var idleTimeMs = Date.now() - umbraState.idleSince;
+    if (idleTimeMs / 1000 > UMBRA_USER_ACTION_IDLE_TIMEOUT_SEC) {
+      clearInterval(umbraIntervalId);
+      return true;
+    }
+  }
+  return false;
+}
+
+var umbraIntervalId = setInterval(umbraIntervalFunc, 5000);
diff --git a/brozzler/behaviors.yaml b/brozzler/behaviors.yaml
index 13af540..42011cb 100644
--- a/brozzler/behaviors.yaml
+++ b/brozzler/behaviors.yaml
@@ -45,6 +45,12 @@ behaviors:
    url_regex: '^https?://(?:www\.)?instagram\.com/.*$'
    behavior_js: instagram.js
    request_idle_timeout_sec: 10
+ - # ARI-4838 racineco.com document viewers
+   url_regex: '^https?://(?:www\.)?racineco\.com/.*$'
+   behavior_js_template: multiclicks.js.template
+   default_parameters:
+      css_selector: img[id^='NavtwocolUserControl11_NavMeeting_item']
+   request_idle_timeout_sec: 10
  -
    url_regex: '^https?://(?:www\.)?brooklynmuseum\.org/exhibitions/.*$'
    behavior_js_template: simpleclicks.js.template