freetextbox-mainscript.js

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//** FreeTextBox Main Script ********************/
//   by John Dyer
//   http://www.freetextbox.com/
//***********************************************/

/** START:BROWSER DETECTION ********************/
_d=document;
_nv=navigator.appVersion.toLowerCase();
_f=false;_t=true;
ie4=(!_d.getElementById&&_d.all)?_t:_f;
ie5=(_nv.indexOf("msie 5.0")!=-1)?_t:_f;
ie55=(_nv.indexOf("msie 5.5")!=-1)?_t:_f;
ie6=(_nv.indexOf("msie 6.0")!=-1)?_t:_f;
isIE=(ie5||ie55||ie6)?_t:_f;
/** END:BROWSER DETECTION ********************/

/** START:MAIN FREETEXTBOX FUNCTIONS ********************/
function FTB_InitializeAll() {
	for (var i=0; i<FTB_StartUpArray.length; i++)
	FTB_Initialize(FTB_StartUpArray[i]);
}

function FTB_Initialize(ftbName) {
	
	startMode = eval(ftbName + "_StartMode");
	readOnly = eval(ftbName + "_ReadOnly");
	designModeCss = eval(ftbName + "_DesignModeCss");
	htmlModeCss = eval(ftbName + "_HtmlModeCss");

	hiddenHtml = FTB_GetHiddenField(ftbName);
	editor = FTB_GetIFrame(ftbName);
	
	if (readOnly) {
		editor.document.designMode = 'Off';
	} else {
		editor.document.designMode = 'On';
	}
	
	editor.document.open();
	editor.document.write(hiddenHtml.value);
	editor.document.close();
		
	if (isIE) {
		if (htmlModeCss != "" || designModeCss != "" ) {
			editor.document.createStyleSheet(designModeCss);
			editor.document.createStyleSheet(htmlModeCss);
			editor.document.styleSheets[1].disabled = true;
		}
	} else {
		// turn off <span style="font-weight:bold">, use <b>
		editor.document.execCommand("useCSS", false, true); 
	}
	
	if (readOnly) {
		editor.document.contentEditable = 'False';
	} else {
		editor.document.contentEditable = 'True';
	}
	
	editor.document.body.style.border = '0';
	
	if (isIE) {
		editor.document.onkeydown = function() {
			return FTB_Event(ftbName);	
		};
		editor.document.onkeypress = function() {
			return FTB_Event(ftbName);	
		};	
		editor.document.onclick = function() {
			return FTB_Event(ftbName);	
		};	
		editor.document.onmousedown = function() {
			return FTB_Event(ftbName);	
		};		
	} else {
		editor.addEventListener("keydown", function() {
			return FTB_Event(ftbName);	
		}, true);	
		editor.addEventListener("keypress", function() {
			return FTB_Event(ftbName);	
		}, true);
		editor.addEventListener("click", function() {
			return FTB_Event(ftbName);	
		}, true);			
		editor.addEventListener("mousedown", function() {
			return FTB_Event(ftbName);	
		}, true);		
	}
	
	
	if (startMode != "DesignMode" && FTB_HideToolbar(ftbName)) {
		toolbar = FTB_GetToolbar(ftbName);
		if (toolbar != null) toolbar.style.display = 'none';
	}
}

function FTB_GetFtbName(ftb) {
	ftbName = ftb.name;
	underscore = ftbName.lastIndexOf("_");
	return ftbName.substring(0,underscore); 
}

function FTB_ChangeMode(ftb,goToHtmlMode) {
	editor = ftb;
		
	ftbName = FTB_GetFtbName(ftb);
	var toolbar = FTB_GetToolbar(ftbName);
	var hideToolbar = FTB_HideToolbar(ftbName);
	var editorContent;
	
	editor.focus();
	
	if (goToHtmlMode) {
		if (isIE) {			
			if (editor.document.styleSheets.length > 0) {
				editor.document.styleSheets[0].disabled = true;
				editor.document.styleSheets[1].disabled = false;				
			}
			if (FTB_HtmlModeDefaultsToMonoSpaceFont(ftbName) && editor.document.styleSheets.length < 2) {						
				editor.document.body.style.fontFamily = 'Courier New, Courier New';
				editor.document.body.style.fontSize = '10pt';				
			}
						
			editorContent = editor.document.body.innerHTML;			
			//alert(editorContent);
			editor.document.body.innerText = editorContent;
		
		} else {			
			editorContent = document.createTextNode(editor.document.body.innerHTML);
			editor.document.body.innerHTML = "";
			editor.document.body.appendChild(editorContent);			
		}
		
		if (toolbar != null && hideToolbar ) {
			toolbar.style.display = 'none';
		}		
		return true;
	} else {
		// go to Design Mode
		if (isIE) {
			editorContent = editor.document.body.innerText;
			
			if (FTB_HtmlModeDefaultsToMonoSpaceFont(ftbName) && editor.document.styleSheets.length < 2) {					
				editor.document.body.style.fontFamily = '';
				editor.document.body.style.fontSize = '';
			}					
			if (editor.document.styleSheets.length > 0) {
				editor.document.styleSheets[0].disabled = false;
				editor.document.styleSheets[1].disabled = true;
			}
			
			editor.document.body.innerHTML = editorContent;
		} else {
						
			editorContent = editor.document.body.ownerDocument.createRange();
			editorContent.selectNodeContents(editor.document.body);
			editor.document.body.innerHTML = editorContent.toString();
		}

		if (toolbar != null && hideToolbar ) {
			toolbar.style.display = 'inline';
		}
		
		editor.focus(); 
		return true;
	}
}

function FTB_CopyHtmlToHidden(ftbName) {
	hiddenHtml = FTB_GetHiddenField(ftbName);
	editor = FTB_GetIFrame(ftbName);
	
	if (isIE) {
		if (FTB_IsHtmlMode(ftbName)) {
			hiddenHtml.value = editor.document.body.innerText;  
		} else {
			hiddenHtml.value = editor.document.body.innerHTML;  
		}		
	} else {
		if (FTB_IsHtmlMode(ftbName)) {
			editorContent = editor.document.body.ownerDocument.createRange();
			editorContent.selectNodeContents(editor.document.body);
			hiddenHtml.value = editorContent.toString();
		} else {
			hiddenHtml.value = editor.document.body.innerHTML;  
		}	
	}
	if (hiddenHtml.value == '<P>&nbsp;</P>' || hiddenHtml.value == '<br>') {
		hiddenHtml.value = '';
	}
}

function FTB_Format(ftbName,commandName) {
	editor = FTB_GetIFrame(ftbName);

	if (FTB_IsHtmlMode(ftbName)) return;
	editor.focus();
	editor.document.execCommand(commandName,'',null);
}

function FTB_SurroundText(ftbName,start,end) {
	if (FTB_IsHtmlMode(ftbName)) return;
	editor = FTB_GetIFrame(ftbName);
	
	if (isIE) {
		var sel = editor.document.selection.createRange();
		html = start + sel.htmlText + end;
		sel.pasteHTML(html);		
	} else {
        selection = editor.window.getSelection();
        editor.focus();
        if (selection) {
            range = selection.getRangeAt(0);
        } else {
            range = editor.document.createRange();
        } 
        
        FTB_InsertText(ftbName, start + selection + end);
	}	

}

function FTB_InsertText(ftbName,insertion) {
	if (FTB_IsHtmlMode(ftbName)) return;
	editor = FTB_GetIFrame(ftbName);
	editor.focus();
	if (isIE) {
		sel = editor.document.selection.createRange();
		sel.pasteHTML(insertion);
	} else {
        editor.focus();
        selection = editor.window.getSelection();
		if (selection) {
			range = selection.getRangeAt(0);
		} else {
			range = editor.document.createRange();
		} 

        var fragment = editor.document.createDocumentFragment();
        var div = editor.document.createElement("div");
        div.innerHTML = insertion;

        while (div.firstChild) {
            fragment.appendChild(div.firstChild);
        }

        selection.removeAllRanges();
        range.deleteContents();

        var node = range.startContainer;
        var pos = range.startOffset;

        switch (node.nodeType) {
            case 3:
                if (fragment.nodeType == 3) {
                    node.insertData(pos, fragment.data);
                    range.setEnd(node, pos + fragment.length);
                    range.setStart(node, pos + fragment.length);
                } else {
                    node = node.splitText(pos);
                    node.parentNode.insertBefore(fragment, node);
                    range.setEnd(node, pos + fragment.length);
                    range.setStart(node, pos + fragment.length);
                }
                break;

            case 1:
                node = node.childNodes[pos];
                node.parentNode.insertBefore(fragment, node);
                range.setEnd(node, pos + fragment.length);
                range.setStart(node, pos + fragment.length);
                break;
        }
        selection.addRange(range);	
	}
}
function FTB_CheckTag(item,tagName) {
	if (item.tagName.search(tagName)!=-1) {
		return item;
	}
	if (item.tagName=='BODY') {
		return false;
	}
	item=item.parentElement;
	return FTB_CheckTag(item,tagName);
}
/** END:MAIN FREETEXTBOX FUNCTIONS ********************/

/** START:PROPERTIES ********************/
function FTB_IsHtmlMode(ftbName) {
	return (eval(ftbName + "_HtmlMode"));
}

function FTB_TabMode(ftbName) {
	return (eval(ftbName + "_TabMode"));
}

function FTB_BreakMode(ftbName) {
	return (eval(ftbName + "_BreakMode"));
}

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