Open Office document or PDF in new tab via file type icon click on SharePoint library view.

OpenFileViaIcon.js

SP.SOD.executeFunc("clienttemplates.js", "SPClientTemplates", function() {
    function getBaseHtml(ctx) {
        return SPClientTemplates["_defaultTemplates"].Fields.default.all.all[ctx.CurrentFieldSchema.FieldType][ctx.BaseViewID](ctx);
    }

    function init() {
        var overrideCtx = {};
        overrideCtx.Templates = {};
        overrideCtx.Templates.Fields = {
            'DocIcon': {
                'View': function CustomIcon(ctx, field, listItem, listSchema) {
                    var str = "";
                    var itemApp = ctx.CurrentItem["File_x0020_Type.mapapp"];
                    if (ctx.CurrentItem.FSObjType == '1'|| itemApp == '' && ctx.CurrentItem.File_x0020_Type != "pdf") {
                        str = (ComputedFieldWorker.DocIcon(ctx, field, listItem, listSchema));
                    } else if(itemApp != ""){
                        str = '<a href="' + ctx.CurrentItem.FileRef + '" onmousedown="return VerifyHref(this,event,\'' + listSchema.DefaultItemOpen + '\',\'' + listItem["HTML_x0020_File_x0020_Type.File_x0020_Type.mapcon"] + '\',\'' + listItem["serverurl.progid"] + '\')" target="_blank">' + ComputedFieldWorker.DocIcon(ctx, field, listItem, listSchema) + '</a>';
                    } else {
                        str = '<a href="' + ctx.CurrentItem.FileRef + '" onmousedown="return VerifyHref(this,event,\''+ listSchema.DefaultItemOpen + '\',\'\',\'\')" target="_blank">' + ComputedFieldWorker.DocIcon(ctx, field, listItem, listSchema) + '</a>'
                    }
                    return str;
                }
            }
        };
        SPClientTemplates.TemplateManager.RegisterTemplateOverrides(overrideCtx);
    }
    RegisterModuleInit(SPClientTemplates.Utility.ReplaceUrlTokens("~siteCollection/SiteAssets/OpenFileViaIcon.js"), init);
    init();
});