页面历史

function main(spreadsheetReport) {
    preventContextMenu(spreadsheetReport.elemSheetFrame);
}
function preventContextMenu(iframe) {
    var doc = iframe.contentWindow.document;
    var list = doc.getElementsByTagName("IFRAME");
    for (var i = 0; i < list.length; i++) {
        function x(subIFrame) {
            preventContextMenu(subIFrame);
            subIFrame.onload = function() {
                preventContextMenu(subIFrame);
            }
        };
        x(list[i]);
    }
    doc.documentElement.oncontextmenu = doc.body.oncontextmenu = function() {
        return false; //禁止鼠标右键
    };
    doc.onkeydown = function(e) {
        var ev = e || window.event;
        if (ev && ev.ctrlKey && ev.keyCode == 67) { // Ctrl + C
            return false;
        }
    };
    doc.ondragstart = function() {
        return false; //禁止拖拽
    };
}