document-server-integration/web/documentserver-example/ruby/app/views/home/editor.html.erb

<%#
 (c) Copyright Ascensio System SIA 2021

 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.
%>

<%= stylesheet_link_tag "editor" %>

<div class="form">
  <div id="iframeEditor">
  </div>
</div>

<script src="<%= Rails.configuration.urlSite + Rails.configuration.urlApi %>"></script>

<script type="text/javascript" language="javascript">

    var docEditor;

    var innerAlert = function (message) {
        if (console && console.log)
            console.log(message);
    };

    // the application is loaded into the browser
    var onAppReady = function () {
        innerAlert("Document editor ready");
    };

    // the document is modified
    var onDocumentStateChange = function (event) {
        var title = document.title.replace(/\*$/g, "");
        document.title = title + (event.data ? "*" : "");
    };

    // the user is trying to switch the document from the viewing into the editing mode
    var onRequestEditRights = function () {
        location.href = location.href.replace(RegExp("editorsMode=view\&?", "i"), "");
    };

    // an error or some other specific event occurs
    var onError = function (event) {
        if (event)
            innerAlert(event.data);
    };

    // the document is opened for editing with the old document.key value
    var onOutdatedVersion = function (event) {
        location.reload(true);
    };

    // replace the link to the document which contains a bookmark
    var replaceActionLink = function(href, linkParam) {
        var link;
        var actionIndex = href.indexOf("&actionLink=");
        if (actionIndex != -1) {
            var endIndex = href.indexOf("&", actionIndex + "&actionLink=".length);
            if (endIndex != -1) {
                link = href.substring(0, actionIndex) + href.substring(endIndex) + "&actionLink=" + encodeURIComponent(linkParam);
            } else {
                link = href.substring(0, actionIndex) + "&actionLink=" + encodeURIComponent(linkParam);
            }
        } else {
            link = href + "&actionLink=" + encodeURIComponent(linkParam);
        }
        return link;
    }

    // the user is trying to get link for opening the document which contains a bookmark, scrolling to the bookmark position
    var onMakeActionLink = function (event) {
        var actionData = event.data;
        var linkParam = JSON.stringify(actionData);
        docEditor.setActionLink(replaceActionLink(location.href, linkParam));  // set the link to the document which contains a bookmark
    };

    // the meta information of the document is changed via the meta command
    var onMetaChange = function (event) {
        var favorite = !!event.data.favorite;
        var title = document.title.replace(/^\☆/g, "");
        document.title = (favorite ? "☆" : "") + title;
        docEditor.setFavorite(favorite);  // change the Favorite icon state
    };

    // the user is trying to insert an image by clicking the Image from Storage button
    var onRequestInsertImage = function(event) {
        docEditor.insertImage({  // insert an image into the file
            "c": event.data.c,
            <%= raw @file.get_insert_image %>
        })
    };

    // the user is trying to select document for comparing by clicking the Document from Storage button
    var onRequestCompareFile = function() {
        docEditor.setRevisedFile(<%= raw @file.get_compare_file.to_json %>);  // select a document for comparing
    }; 

    // the user is trying to select recipients data by clicking the Mail merge button
    var onRequestMailMergeRecipients = function (event) {
        docEditor.setMailMergeRecipients(<%= raw @file.dataMailMergeRecipients.to_json %>);  // insert recipient data for mail merge into the file
    };

    var сonnectEditor = function () {

        var config = <%= raw @file.get_config.to_json %>;

        config.width = "100%";
        config.height = "100%";
        config.events = {
            'onAppReady': onAppReady,
            'onDocumentStateChange': onDocumentStateChange,
            'onRequestEditRights': onRequestEditRights,
            'onError': onError,
            'onOutdatedVersion': onOutdatedVersion,
            'onMakeActionLink': onMakeActionLink,
            'onMetaChange': onMetaChange,
            'onRequestInsertImage': onRequestInsertImage,
            'onRequestCompareFile': onRequestCompareFile,
            'onRequestMailMergeRecipients': onRequestMailMergeRecipients,
        };

        <%
            h = @file.get_history
            if h %>
            // the user is trying to show the document version history
            config.events['onRequestHistory'] = function () {
                docEditor.refreshHistory(<%= raw h[:hist].to_json %>);  // show the document version history
            };
            // the user is trying to click the specific document version in the document version history
            config.events['onRequestHistoryData'] = function (event) {
                var ver = event.data;
                var histData = <%= raw h[:histData].to_json %>;
                docEditor.setHistoryData(histData[ver - 1]);  // send the link to the document for viewing the version history
            };
            // the user is trying to go back to the document from viewing the document version history
            config.events['onRequestHistoryClose'] = function () {
                document.location.reload();
            };
            <% end
        %>

        docEditor = new DocsAPI.DocEditor("iframeEditor", config);
    };

    if (window.addEventListener) {
        window.addEventListener("load", сonnectEditor);
    } else if (window.attachEvent) {
        window.attachEvent("load", сonnectEditor);
    }

</script>