页面历史

function main(spreadsheetReport) {
    var doc = spreadsheetReport.elemSheetFrame.contentWindow.document;
    doc.documentElement.oncontextmenu = doc.body.oncontextmenu = function() {
        return false;
    };
    document.oncontextmenu = function() {
        return false;
    }
    doc.documentElement.oncopy = doc.body.oncopy = function() {
        return false;
    }
    doc.onkeydown = function(e) {
        var ev = e || window.event;
        if (ev && ev.ctrlKey && ev.keyCode == 67) { // Ctrl + C
            return false;
        }
    }
    doc.onselectstart = function() {
        // return false; // 禁止选择文本
    }
}