freetextbox-mainscript.js

网上自动答疑系统(C#)

}

function FTB_HtmlModeDefaultsToMonoSpaceFont(ftbName) {
	return (eval(ftbName + "_HtmlModeDefaultsToMonoSpaceFont"));
}

function FTB_HideToolbar(ftbName) {
	return (eval(ftbName + "_HideToolbar"));
}

function FTB_UpdateToolbar(ftbName) {
	return (eval(ftbName + "_UpdateToolbar"));
}

function FTB_GetHiddenField(ftbName) {
	return document.getElementById(ftbName);
}

function FTB_GetTextDirection(ftbName) {
	return (eval(ftbName + "_TextDirection"));
}

function FTB_GetIFrame(ftbName) {
	if (isIE) {
		return eval(ftbName + "_Editor");
		//return document.getElementById(ftbName + "_Editor");
	} else {
		return document.getElementById(ftbName + "_Editor").contentWindow;
	}
}

function FTB_GetToolbar(ftbName) {
	return document.getElementById(ftbName + "_Toolbar");
}
function FTB_GetToolbarArray(ftbName) {
	return eval(ftbName + "_ToolbarItems");
}
function FTB_GetCssID(ftbName) {
	cssID = ftbName;
	while (cssID.substring(0,1) == '_') {
		cssID = cssID.substring(1);
	}
	return cssID;
}
function FTB_SetButtonStyle(buttonTD,style,checkstyle) {
	if (buttonTD == null) return;
	if (buttonTD.className != checkstyle)
		buttonTD.className = style;
	
}
function FTB_GetClassSubName(className) {
	underscore = className.indexOf("_");
	if (underscore < 0) return className;
	return className.substring(underscore+1);
}

/** END:PROPERTIES ********************/

/** START:TABS ********************/
function FTB_SetActiveTab(theTD,ftbName) {
	parentTR = theTD.parentElement;
	parentTR = document.getElementById(ftbName + "_TabRow");

	selectedTab = 1;
	totalButtons = parentTR.cells.length-1;
	for (var i=1;i< totalButtons;i++) {
		parentTR.cells[i].className = FTB_GetCssID(ftbName) + "_TabOffRight";
		if (theTD == parentTR.cells[i]) { selectedTab = i; }
	}

	if (selectedTab==1) {
		parentTR.cells[0].className = FTB_GetCssID(ftbName) + "_StartTabOn";
	} else {
		parentTR.cells[0].className = FTB_GetCssID(ftbName) + "_StartTabOff";
		parentTR.cells[selectedTab-1].className = FTB_GetCssID(ftbName) + "_TabOffLeft";
	}

	theTD.className = FTB_GetCssID(ftbName) + "_TabOn";
}
function FTB_TabOver() {
	document.body.style.cursor='default';
}
function FTB_TabOut() {
	document.body.style.cursor='auto';
}
/** END:TABS ********************/

function FTB_Event(ftbName) {
	
	editor = FTB_GetIFrame(ftbName);
	htmlMode = FTB_IsHtmlMode(ftbName);
	var _TAB = 9;
	var _ENTER = 13;
	var _QUOTE = 222;
	var _OPENCURLY = '&#8220;';
	var _CLOSECURLY = '&#8221;';
	
	if (isIE) {
	// TAB Functions
		if (editor.event.keyCode == _TAB) {	

			var tabMode = FTB_TabMode(ftbName);

			if (tabMode == "Disabled") {
				editor.event.cancelBubble = true;
				editor.event.returnValue = false;
			}
			if (tabMode == "InsertSpaces") {
				FTB_InsertText(ftbName,"&nbsp;&nbsp;&nbsp;");
				editor.event.cancelBubble = true;
				editor.event.returnValue = false;
			}			
			if (tabMode == "NextControl") {
				// do nothing for TabMode.NextControl
			}	
		}

		// IE defaults to <p>, Mozilla to <br>
		if (editor.event.keyCode == _ENTER) {


			var breakMode = FTB_BreakMode(ftbName);			

			if (breakMode == "LineBreak" || editor.event.ctrlKey || htmlMode) {
				var sel = editor.document.selection;
				if (sel.type == 'Control') {
					return;
				}
				var r = sel.createRange();
				if ((!FTB_CheckTag(r.parentElement(),'LI'))&&(!FTB_CheckTag(r.parentElement(),'H'))) {
					r.pasteHTML('<br>');
					editor.event.cancelBubble = true; 
					editor.event.returnValue = false; 
					r.select();
					r.collapse(false);
					return false;
				}					
			}
		}
	}
	
	// update ToolbarItems only every 50 milliseconds b/c it is expensive
	if (!htmlMode && FTB_UpdateToolbar(ftbName)) {		
		if (editor.timerToolbar) {
			clearTimeout(editor.timerToolbar);
		}
		editor.timerToolbar = setTimeout(function() {
			FTB_SetToolbarItems(ftbName);
			editor.timerToolbar = null;
		}, 50);	
	}
}

function FTB_SetToolbarItems(ftbName) {
	editor = FTB_GetIFrame(ftbName);
	htmlMode = FTB_IsHtmlMode(ftbName);
	toolbarArray = 	FTB_GetToolbarArray(ftbName);
		
	//document.getElementById("Debug").value = "";
	
	if (toolbarArray) {
		for (var i=0; i<toolbarArray.length; i++) {
			toolbarItemID = toolbarArray[i][0];
			toolbarItem = document.getElementById(toolbarItemID);
			commandIdentifier = toolbarArray[i][1];

			state = "";
			try {
				if (toolbarItemID.indexOf("Button") > -1) {
					state = editor.document.queryCommandState(commandIdentifier);

					FTB_SetButtonState(toolbarItemID,ftbName,state);
				} else {
					state = editor.document.queryCommandValue(commandIdentifier);
					
					switch (commandIdentifier) {
						case "backcolor":
							if (isIE) {
								state = FTB_GetHexColor(state);
							} else {
								if (state == "") state = "#FFFFFF";
							}
							break;						
						case "forecolor":
							if (isIE) {
								state = FTB_GetHexColor(state);
							} else {
								if (state == "") state = "#000000";
							}
							break;
						case "formatBlock":
							//document.getElementById("Debug").value += "****: " + state + "\n";
							if (!isIE) {
								if (state == "p" || state == "" || state == "<x>") 
									state = "<body>";
								else 
									state = "<" + state + ">";							
							}
							break;					
					}
						
					//document.getElementById("Debug").value += commandIdentifier + ": " + state + "\n";
					
					FTB_SetDropDownListState(toolbarItemID,state);					
				}
			} catch(e) {
			}
		}
	}
}

function FTB_GetHexColor(intColor) {
	intColor = intColor.toString(16).toUpperCase();
	while (intColor.length < 6) {
		intColor = "0" + intColor;
	}
	return "#" + intColor.substring(4,6) + intColor.substring(2,4) + intColor.substring(0,2);
}

function FTB_SetDropDownListState(ddlName,value) {
	ddl = document.getElementById(ddlName);
	
	if (ddl) {
		for (var i=0; i<ddl.options.length; i++) {
			if (ddl.options[i].text == value || ddl.options[i].value == value) {
				ddl.options.selectedIndex = i;
				return;
			}	
		}
	}
}

function FTB_SetButtonState(buttonName,ftbName,value) {
	buttonTD = document.getElementById(buttonName);
	
	if (buttonTD) {
		if (value) {
			buttonTD.className = FTB_GetCssID(ftbName) + "_ButtonActive";
			//FTB_ButtonOver(buttonTD,ftbName,0,0);
		} else {
			buttonTD.className = FTB_GetCssID(ftbName) + "_ButtonNormal";
			//FTB_ButtonOut(buttonTD,ftbName,0,0);
		}
	}
}

// *******************************

function FTB_GetParentElement(ftbName) {
	editor = FTB_GetIFrame(ftbName);

	var sel = FTB_GetSelection(ftbName);
	var range = FTB_CreateRange(ftbName,sel);
	if (isIE) {
		switch (sel.type) {
		    case "Text":
		    case "None":
				// It seems that even for selection of type "None",
				// there _is_ a parent element and it's value is not
				// only correct, but very important to us.  MSIE is
				// certainly the buggiest browser in the world and I
				// wonder, God, how can Earth stand it?
				return range.parentElement();
		    case "Control":
				return range.item(0);
		    default:
				return editor.document.body;
		}
	} else try {
		var p = range.commonAncestorContainer;
		if (!range.collapsed && range.startContainer == range.endContainer &&
		    range.startOffset - range.endOffset <= 1 && range.startContainer.hasChildNodes())
			p = range.startContainer.childNodes[range.startOffset];
		/*
		alert(range.startContainer + ":" + range.startOffset + "\n" +
		      range.endContainer + ":" + range.endOffset);
		*/
		while (p.nodeType == 3) {
			p = p.parentNode;
		}
		return p;
	} catch (e) {
		return null;
	}
};

// returns the current selection object
function FTB_GetSelection(ftbName) {
	editor = FTB_GetIFrame(ftbName);
	if (isIE) {
		return editor.document.selection;
	} else {
		return editor.getSelection();
	}
}

// returns a range for the current selection
function FTB_CreateRange(ftbName,sel) {
	editor = FTB_GetIFrame(ftbName);
	if (isIE) {
		return sel.createRange();
	} else {
		//TODO: this.focusEditor();
		if (typeof sel != "undefined") {
			try {
				return sel.getRangeAt(0);
			} catch(e) {
				return editor.document.createRange();
			}
		} else {
			return editor.document.createRange();
		}
	}
}