- Migrated from https://github.com/Yetangitu/owncloud-apps

- substantial bit rot accrued in 4 years of non-maintenance which made Reader unusable
 - Reader now works reliably on public pages - or at least it _Works For Me™_

 - Refactored a substantial part of the code to comply to the "current" (ha ha) Nextcloud API
 - Dropped Owncloud compatibility for lack of a testing installation
 - Dropped IE (<11) support
 - Dropped compatibility with older (<20) Nextcloud versions
 - Dropped app-specific ajax code, now handled by SettingsController
 - Updated dependencies where applicable

vendor/pdfjs/controllers/progress_controller.js

@@ -0,0 +1,57 @@
+PDFJS.reader.ProgressController = function() {
+    var reader = this,
+        settings = reader.settings,
+        percentage = 0;
+
+    var $progress = $("#progress"),
+        $bar = $(".bar"),
+        $download_icon = $("#download_icon"),
+        $message = $(".message-text");
+
+    var show = function () {
+        $progress.removeClass("hide");
+    };
+
+    var hide = function () {
+        $progress.addClass("hide");
+    };
+
+    var setSize = function (size) {
+        settings.fileSize = size;
+    };
+
+    var setProgress = function (progress) {
+
+        if (percentage < 1)
+            $download_icon.addClass("active");
+
+        percentage = Math.floor((progress.loaded / progress.total) * 100);
+        $bar.css("width", percentage + "%");
+
+        if (percentage === 100)
+            $download_icon.removeClass("active").addClass("ok");
+    };
+
+    var reset = function() {
+        $bar.css("width", 0);
+    };
+
+    var setMessage = function (text, category, state) {
+
+        var $category_icon = $("#" + category + "_icon");
+
+        $message.text(text);
+
+        $category_icon[0].classList.remove("ok", "active", "error");
+        $category_icon.addClass(state);
+    };
+
+
+    return {
+        "show": show,
+        "hide": hide,
+        "setSize": setSize,
+        "setProgress": setProgress,
+        "setMessage": setMessage
+    };
+};