csdnscriptworkshop.js

关于断言的一篇小文章

                        clearTimeout(timer);
                        CsdnScriptPlugins[name].loading = false;
                    }
                    CsdnScriptWorkshop.changeButton(name);
                });
                return;
            }

            callScript(CsdnScriptPlugins[name].url, function() {
                try {
                    eval("CsdnScriptPlugins[\"" + name + "\"].plugin = " + name + ";");
                    CsdnScriptPlugins[name].download = true;
                    CsdnScriptWorkshop.loadPlugin(name);
                } catch (e) {
                    CsdnScriptPlugins[name].plugin = null;
                    CsdnScriptPlugins[name].download = false;
                    setCookie(name, "", -1);
                    alert("插件装载出现异常。--" + e.message);
                } finally {
                    clearTimeout(timer);
                    CsdnScriptPlugins[name].loading = false;
                }
                CsdnScriptWorkshop.changeButton(name);
            }, function() {
                setCookie(name, "", -1);
                clearTimeout(timer);
                CsdnScriptPlugins[name].plugin = null;
                CsdnScriptPlugins[name].download = false;
                CsdnScriptPlugins[name].loading = false;
                CsdnScriptWorkshop.changeButton(name);
                alert("无效脚本文件。");
            });
        }
        return true;
    },

    /// <summary>
    /// 释放UBB插件对象，拒绝访问
    /// </summary>
    /// <param name="plugin">脚本对象</param>
    /// <returns>返回是否释放成功</returns>
    freePlugin: function(name) {
        var plugin = CsdnScriptPlugins[name].plugin;
        if (!plugin) return false;
        if (plugin.interfaceVersion != this.interfaceVersion) return false;
        if (typeof plugin.free != "function") return false;
        if (!plugin.loaded) return false; // 未激活
        if (name == "CsdnScriptPlugin999") {
            CsdnScriptPlugin999 = null;
            CsdnScriptPlugins[name].plugin = null;
            CsdnScriptPlugins[name].download = false;
        }
        setCookie(name, "", -1);
        plugin.free();
        plugin.loaded = false;
        CsdnScriptWorkshop.changeButton(name);
        return true;
    },

    /// <summary>
    /// 改变按钮状态
    /// </summary>
    /// <param name="name">插件名</param>
    changeButton: function(name) {
        var button_load = document.getElementById("button_" + name + "_load");
        var button_free = document.getElementById("button_" + name + "_free");
        if (CsdnScriptPlugins[name].loading) {
            if (button_load) {
                button_load.style.color = "Green";
                button_load.style.cursor = "default";
                button_load.innerHTML = "装载中...";
                button_load.onclick = null;
            }
            if (button_free) {
                button_free.style.color = "Green";
                button_free.style.cursor = "default";
                button_free.innerHTML = "装载中...";
                button_free.onclick = null;
            }
        } else if (CsdnScriptPlugins[name].plugin && CsdnScriptPlugins[name].plugin.loaded) {
            if (button_load) {
                button_load.style.color = "Red";
                button_load.style.cursor = "default";
                button_load.innerHTML = "已装载";
                button_load.onclick = null;
            }
            if (button_free) {
                button_free.style.color = "Blue";
                button_free.style.cursor = "pointer";
                button_free.innerHTML = "卸载";
                button_free.onclick = function() { CsdnScriptWorkshop.freePlugin(name); };
            }
        } else {
            if (button_load) {
                button_load.style.color = "Blue";
                button_load.style.cursor = "pointer";
                button_load.innerHTML = "装载";
                button_load.onclick = function() { CsdnScriptWorkshop.loadPlugin(name); };
            }
            if (button_free) {
                button_free.style.color = "Red";
                button_free.style.cursor = "default";
                button_free.innerHTML = "已卸载";
                button_free.onclick = null;
            }
        }
    },

    /// <summary>
    /// 获得UBB编辑器，推荐访问
    /// </summary>
    /// <returns>返回编辑对象</returns>
    getEditor: function() {
        return document.getElementById("tb_ReplyBody___Editor") ||
            document.getElementById("ctl00_ctl00_CPH_Content_CPH_BaseContent_tb_TopicBody___Editor");
    },

    /// <summary>
    /// 获得UBB编辑器文本，推荐访问
    /// </summary>
    /// <returns>返回全部文本</returns>
    getEditorText: function() {
        var editor = this.getEditor();
        if (editor) return editor.value;
    },

    /// <summary>
    /// 设置UBB编辑器文本，推荐访问
    /// </summary>
    /// <param name="value">文本内容</param>
    setEditorText: function(value) {
        var editor = this.getEditor();
        if (editor) return editor.value = value;
    },

    /// <summary>
    /// 获得UBB编辑器选中文本，推荐访问
    /// </summary>
    /// <returns>返回当前选中的文本</returns>
    getSelectText: function() {
        var editor = this.getEditor();
        if (!editor) return;
        editor.focus();
        if (this.range)
            return this.range.text;
        else if (editor.document && editor.document.selection)
            return editor.document.selection.createRange().text;
        else if (typeof editor.selectionStart != "undefined")
            return editor.value.substring(editor.selectionStart, editor.selectionEnd);
    },

    /// <summary>
    /// IE编辑器文字选区
    /// </summary>
    range: null,

    /// <summary>
    /// 设置UBB编辑器选中文本，推荐访问
    /// </summary>
    /// <param name="value">文本内容</param>
    setSelectText: function(value) {
        var editor = this.getEditor();
        if (!editor) return;
        editor.focus();
        if (this.range) {
            this.range.text = value;
            this.range.select();
            this.range = null;
        } else if (editor.document && editor.document.selection)
            editor.document.selection.createRange().text = value;
        else if (typeof editor.selectionStart != "undefined") {
            var str = editor.value;
            var start = editor.selectionStart;
            var top = editor.scrollTop;
            editor.value = str.substr(0, start) + value +
 			    str.substring(editor.selectionEnd, str.length);
            editor.selectionStart = start + value.length;
            editor.selectionEnd = start + value.length;
            editor.scrollTop = top;
        }
    },

    /// <summary>
    /// 添加工具按钮，推荐访问
    /// </summary>
    /// <param name="hint">提示内容</param>
    /// <param name="icon">图标URL，16*16，可以通过个人空间上传</param>
    /// <param name="click">点击按钮执行的函数</param>
    addButton: function(hint, icon, click) {
        if (!this.initialized) return;
        var a_button = document.createElement("a");
        a_button.input_button = document.createElement("input");
        a_button.input_button.className = "menuitem";
        if (icon) a_button.input_button.style.backgroundImage = "url(" + icon + ")";
        a_button.input_button.type = "button";
        a_button.input_button.title = hint;
        a_button.input_button.workshop = this;
        a_button.input_button.onfocus = function() { this.blur(); };
        if (typeof click == "function") a_button.input_button.onclick = click;
        a_button.appendChild(a_button.input_button);
        this.toolbar.appendChild(a_button);
        return a_button;
    },

    /// <summary>
    /// 删除工具按钮，推荐访问
    /// </summary>
    /// <param name="button">按钮对象</param>
    deleteButton: function(button) {
        if (!button) return false;
        button.input_button.parentNode.removeChild(button.input_button);
        button.parentNode.removeChild(button);
        return true;
    },

    /// <summary>
    /// 添加工具分隔条，推荐访问
    /// </summary>
    addSeparator: function() {
        if (!this.initialized) return;
        var input_separator = document.createElement("input");
        input_separator.className = "menuitem space";
        input_separator.type = "button";
        input_separator.disabled = "true";
        input_separator.onfocus = function() { this.blur(); };
        this.toolbar.appendChild(input_separator);
        return input_separator;
    },

    /// <summary>
    /// 删除工具分隔条，推荐访问
    /// </summary>
    /// <param name="separator">分隔条对象</param>
    deleteSeparator: function(separator) {
        if (!separator) return;
        separator.parentNode.removeChild(separator);
    },

    /// <summary>
    /// 显示对话框，推荐访问
    /// </summary>
    /// <param name="title">标题</param>
    /// <param name="html">显示的html内容</param>
    /// <param name="left">左边距</param>
    /// <param name="top">上边距</param>
    /// <param name="width">宽度</param>
    /// <param name="height">高度</param>
    showDialog: function(title, html, left, top, width, height) {
        var editor = this.getEditor();
        if (editor) {
            editor.focus();
            if (editor && editor.document && editor.document.selection)
                this.range = editor.document.selection.createRange(); // 记忆编辑框选区，在IE中如果在其他文本框输入内容将导致UBB编辑框的选区失效，所以需要记忆
        } else this.range = null;
        left = typeof left == "undefined" ? -1 : left;
        top = typeof top == "undefined" ? -1 : top;
        if (typeof showWindow == "function")
            showWindow({ "html": html, "width": width, "height": height, "title": title,
                "left": left, "top": top
            });
    },

    /// <summary>
    /// 关闭对话框，推荐访问
    /// </summary>
    closeDialog: function() {
        this.range = null;
        if (typeof closeWindow == "function") closeWindow();
    }
}

addEventHandler(window, "load", function() {
    if (typeof CsdnDialog == "undefined") {
        callScript("../ui/scripts/Csdn/Plugin/CsdnDialog.js?version=2008120901", function() {
            if (typeof CsdnDialog != "undefined" && typeof CsdnScriptPlugins != "undefined")
                CsdnScriptWorkshop.initialize();
        });
    }
    if (typeof CsdnScriptPlugins == "undefined") {
        callScript("../ui/scripts/Csdn/Plugin/CsdnScriptPlugins.js?version=2008120907", function() {
            if (typeof CsdnDialog != "undefined" && typeof CsdnScriptPlugins != "undefined")
                CsdnScriptWorkshop.initialize();
        });
    }
});