转载地址:http://floydd.iteye.com/blog/1326338
1.editor的iframe window的keydown事件绑定
由于htmleditor本身提供的specialkey event不给力,所以自己手动在init时增加更加精确的keydown事件来弥补
需要注意的是:chrome的事件必须绑定在body上,否则ENTER这种特殊的键无法触发
- var win = Ext.isIE ? ed.getDoc() : ed.getWin();
- ...
- Ext.EventManager.on(!Ext.isWebKit ? win : win.document.body,
- 'keydown', function(e) {
- if (e.isSpecialKey())
- this.fireEvent('_specialkey', this, e)
- }, ed);
2.chrome下htmleditor回车会有问题(光标位置不正确),发现源代码中extjs官网是加了2个br,结果是不对的,修正方法是在fixKeys方法中修改webkit部分,回车时插入\n(chrome会自动变成\n<br>),getvalue时干掉所有\n<br>,比较纠结的方法,但是能解决问题,代码 如下
- fixKeys : function() {
- if (Ext.isIE) {
- ...
- } else if (Ext.isOpera) {
- ...
- } else if (Ext.isWebKit) {
- return function(e) {
- var k = e.getKey();
- if (k == e.TAB) {
- e.stopEvent();
- this.execCmd('InsertText', '\t');
- this.deferFocus();
- } else if (k == e.ENTER) {
- e.stopEvent();
- // fix chrome ENTER double pressed bug
- <strong>this.execCmd('InsertText', '\n');
- </strong> this.deferFocus();
- }
- };
- }
- }(),
- getValue : function() {
- var ret = FloatHtmlEditor.superclass.getValue.apply(this, arguments);
- if (ret) {
- // fix edit grid panel compare startvalue & nowvalue
- // fix '\n' patch for webkit(chrome) when ENTER pressed
- ret = ret.replace(/^( |<br>|\s)*|( |<br>|\s)*$/ig, '')
- ret = ret.replace(/<div>(.+?)<\/div>/ig,'<br>$1')
- }
- if (!ret) {
- ret = '';
- }
- return ret;
- },
FloatHtmlEditor 是一个用于嵌入在grid中的editor,主要是修改了edit的bar,能够浮动出来,节约grid中的编辑区域
其他扩展特性:
* copy/paste 简化所有copy内容为纯文本,包括word/excel等复杂的格式
* 能够自适应文字大小,自动扩展编辑区域
* 修正多个平台下的focus的问题(htmleditor默认的focus和其他field有区别,不能定位的文字末尾)
完整源码:
- var FloatHtmlEditor = Ext.extend(Ext.form.HtmlEditor, {
- fixKeys : function() {
- if (Ext.isIE) {
- return function(e) {
- var k = e.getKey(), doc = this.getDoc(), r;
- if (k == e.TAB) {
- e.stopEvent();
- r = doc.selection.createRange();
- if (r) {
- r.collapse(true);
- r.pasteHTML('');
- this.deferFocus();
- }
- } else if (k == e.ENTER) {
- r = doc.selection.createRange();
- if (r) {
- var target = r.parentElement();
- if (!target || target.tagName.toLowerCase() != 'li') {
- e.stopEvent();
- r.pasteHTML('<br />');
- r.collapse(false);
- r.select();
- }
- }
- }
- };
- } else if (Ext.isOpera) {
- return function(e) {
- var k = e.getKey();
- if (k == e.TAB) {
- e.stopEvent();
- this.win.focus();
- this.execCmd('InsertHTML', '');
- this.deferFocus();
- }
- };
- } else if (Ext.isWebKit) {
- return function(e) {
- var k = e.getKey();
- if (k == e.TAB) {
- e.stopEvent();
- this.execCmd('InsertText', '\t');
- this.deferFocus();
- } else if (k == e.ENTER) {
- e.stopEvent();
- // fix chrome ENTER double pressed bug
- this.execCmd('InsertHTML', '\n<br>');
- this.deferFocus();
- }
- };
- }
- }(),
- _measureDiv : null,
- _getFrame : function() {
- if (!this._frm)
- this._frm = this.getEl().parent().query('iframe')[0];
- return this._frm
- },
- _adjustHeight : function() {
- var t = Ext.fly(this._getFrame());
- var div = this._measureDiv
- if (!div) {
- div = this._measureDiv = this.__measureDiv = document
- .createElement('div');
- div.style.position = 'absolute';
- // div.style.border = '1px solid red'
- div.style.top = '-1px';
- div.style.left = '-10000px'
- div.style.whiteSpace = 'normal';
- div.style.wordWrap = 'break-word';
- div.style.lineHeight = '15px'
- document.body.appendChild(div)
- }
- if (t.dom.contentWindow.document.body.innerHTML == '') {
- t.setHeight(this._min_h);
- return
- }
- if (div.innerHTML == t.dom.contentWindow.document.body.innerHTML)
- return;
- var width = parseInt(t.getWidth());
- Ext.isIE ? width -= 25 : width -= 7
- div.style.width = width + 'px'
- div.innerHTML = t.dom.contentWindow.document.body.innerHTML;
- this._adjust_h = div.offsetHeight
- if (this._adjust_h < this._min_h) {
- this._adjust_h = this._min_h;
- }
- t.setHeight(this._adjust_h);
- },
- onEditorEvent : function(e) {
- if (this.onSpecialKey) {
- this.onSpecialKey(e);
- }
- return FloatHtmlEditor.superclass.onEditorEvent.apply(this, arguments)
- },
- getValue : function() {
- var ret = FloatHtmlEditor.superclass.getValue.apply(this, arguments);
- if (ret) {
- // fix edit grid panel compare startvalue & nowvalue
- // fix '\n' patch for webkit(chrome) when ENTER pressed
- ret = ret.replace(/^(|<br>|\s)*|(|<br>|\s)*$/ig, '')
- ret = ret.replace(/<div>(.+?)<\/div>/ig,'<br>$1')
- }
- if (!ret) {
- ret = '';
- }
- return ret;
- },
- markTeamMember : function() {
- this.teamCmp = true
- },
- initComponent : function() {
- this.valueEditToolbarId = Ext.id()
- this.onBlur = Ext.form.Field.prototype.onBlur;
- FloatHtmlEditor.superclass.initComponent.call(this);
- this.addEvents('_specialkey')
- this.on('afterrender', function() {
- this.getToolbar().hide();
- }, this)
- this.on('show', function() {
- this._adjust_h = 0;
- this._adjustHeight.defer(100, this);
- this.focus()
- }, this)
- this.on('initialize', function(ed) {
- var toolbarWin = this.toolbarWin = new Ext.Window({
- html : '<div id="' + this.valueEditToolbarId
- + '" class=""></div>',
- height : 255,
- width : 50,
- closeAction : 'hide',
- resizable : false,
- iconCls : 'icon-toolbox'
- })
- toolbarWin.show();
- var xy = this.getHoverTarget().getEl().getXY();
- toolbarWin.setPagePosition(xy[0] + this.getHoverTarget().getWidth()
- - toolbarWin.getWidth(), xy[1]);
- var el = this.getToolbar().getEl();
- var appentToEl = Ext.getDom(this.valueEditToolbarId);
- appentToEl.className = el.dom.parentNode.className;
- el.appendTo(appentToEl);
- this.getToolbar().show();
- var tbarRawRow = el.query('.x-toolbar-left-row')[0];
- var btnNodes = Ext.Element.fly(tbarRawRow).query('.x-toolbar-cell');
- Ext.each(btnNodes, function(btnNode) {
- var btnEl = Ext.Element.fly(btnNode);
- if (btnEl.query('.xtb-sep').length) {
- btnEl.remove();
- } else {
- var newRow = Ext.Element.fly(tbarRawRow)
- .insertSibling({
- tag : 'tr',
- cls : 'x-toolbar-left-row'
- });
- newRow.appendChild(btnNode);
- var nel = Ext.Element.fly(btnNode);
- nel.query('button')[0].setAttribute('unselectable',
- 'on')
- nel.on('click', function() {
- this.fireEvent('styleBtnClick')
- }, this)
- }
- }, this)
- toolbarWin.hide();
- if (!Ext.isIE) {
- toolbarWin.on('move', function() {
- ed.markTeamMember()
- })
- }
- this.getEl().findParent("div", 2, true).query('.x-html-editor-tb')[0].style.display = 'none'
- Ext.EventManager.on(ed.getWin(), 'blur', function() {
- if (this.adjustTimer) {
- clearInterval(this.adjustTimer);
- delete this.adjustTimer
- }
- if (this._measureDiv) {
- this._measureDiv.innerHTML = ''
- }
- this._adjust_h = 0;
- (function () {
- var teamCmp = ed.teamCmp;
- teamCmp ? delete ed.teamCmp : ed.onBlur.apply(ed,
- arguments)
- }).defer(10, ed, arguments);
- }, ed);
- ed.getWin().document.body.style.overflow = 'hidden'
- ed.getWin().document.body.style.whiteSpace = 'normal';
- ed.getWin().document.body.style.wordWrap = 'break-word';
- ed.getWin().document.body.style.lineHeight = '15px';
- Ext.EventManager.on(ed.getWin(), 'focus', function() {
- if (this.teamCmp)
- delete this.teamCmp
- }.dg(this), ed);
- var win = Ext.isIE ? ed.getDoc() : ed.getWin()
- Ext.EventManager.on(Ext.isIE ? ed.getDoc().documentElement : ed
- .getWin(), 'paste', function(e) {
- var html = ed.getDoc().body.innerHTML;
- if (html.length >= 4
- && html.substring(html.length - 4) == '<br>') {
- ed._beforePasteHTMLPos = html.length - 4;
- } else {
- ed._beforePasteHTMLPos = html.length
- }
- })
- // fix chrome keydown problem
- Ext.EventManager.on(!Ext.isWebKit ? win : win.document.body,
- 'keydown', function(e) {
- if (!this.adjustTimer) {
- this.adjustTimer = setInterval(function() {
- this._adjustHeight();
- }.dg(this), 200);
- }
- if (e.isSpecialKey())
- this.fireEvent('_specialkey', this, e)
- }, ed);
- // fix IE first range select
- this.moveCursorToEnd()
- }, this)
- },
- // public >>>
- getHoverTarget : Ext.emptyFn,
- toolbarWin : null,
- valueEditToolbarId : null,
- // public <<<
- _adjust_h : 0,
- _min_h : 34,
- setSize : function(w, h) {
- if (typeof w == 'object') {
- h = w.height
- w = w.width
- }
- if (this._adjust_h == 0)
- this._min_h = h - 4;
- FloatHtmlEditor.superclass.setSize.apply(this, arguments);
- var t = Ext.Element.fly(this.getEl().parent().query('iframe')[0]);
- t.setHeight(this._adjust_h ? this._adjust_h : this._min_h);
- },
- focus : function(st, delay) {
- var t = this.getWin();
- if (this._focus_delay)
- clearTimeout(this._focus_delay)
- this._focus_delay = window.setTimeout(function() {
- t.focus();
- }, 10);
- },
- moveCursorToEnd : function() {
- this.focusPatch()
- },
- focusPatch : function() {
- var ed = this;
- if (!ed.win)
- return
- var doc = ed.getDoc();
- ed.win.focus();
- if (Ext.isIE) {
- var r = doc.selection.createRange();
- if (r) {
- r.moveStart('character', 1000);
- r.collapse(true);
- r.select();
- }
- } else {
- var contentDoc = doc;
- var range = contentDoc.createRange();
- var lastNode = contentDoc.body.childNodes[contentDoc.body.childNodes.length
- - 1];
- var end = 0;
- var selection = ed.getWin().getSelection();
- range.setStart(contentDoc.body.firstChild, 0);
- if (lastNode.nodeType == 3) {
- end = lastNode.textContent.length;
- range.setEnd(lastNode, end);
- } else {
- range.setEndAfter(lastNode)
- }
- selection.removeAllRanges();
- // chorme need the range collapsed before add to selection
- range.collapse(false);
- selection.addRange(range);
- }
- },
- showTBWin : function() {
- var tbwin = this.toolbarWin
- if (tbwin) {
- var a = tbwin.toFront
- tbwin.toFront = function() {
- }
- tbwin.show()
- tbwin.toFront = a
- }
- },
- // clean all tags
- syncValue : function() {
- if (this.initialized) {
- var bd = this.getEditorBody();
- var len = bd.innerHTML.length;
- FloatHtmlEditor.superclass.syncValue.call(this);
- if (this._beforePasteHTMLPos != null) {
- this.syncValue1();
- var pastehtml = bd.innerHTML
- // .substring(this._beforePasteHTMLPos);
- // replace all tags,only plain text from clipboard
- var adjustpastehtml = pastehtml
- // trim spaces between tags
- // replace \n for excel paste
- .replace(/\s+/ig, '')
- // replace tag except for <br>
- .replace(/<(?!br).*?>/ig, '')
- if (pastehtml != adjustpastehtml) {
- bd.innerHTML = adjustpastehtml;
- }
- delete this._beforePasteHTMLPos;
- }
- }
- },
- destroy : function() {
- if (this._measureDiv) {
- this._measureDiv.parentNode.removeChild(this._measureDiv);
- delete this._measureDiv
- }
- if (this.adjustTimer) {
- clearInterval(this.adjustTimer)
- delete this.adjustTimer
- }
- FloatHtmlEditor.superclass.destroy.call(this)
- },
- enableAlignments : false,
- enableFont : false,
- enableLinks : false,
- enableSourceEdit : true,
- // 清理excel,word copy paste的内容,code from HtmlLintEditor
- dirtyHtmlTags : [
- // http://stackoverflow.com/questions/2875027/clean-microsoft-word-pasted-text-using-javascript
- // http://stackoverflow.com/questions/1068280/javascript-regex-multiline-flag-doesnt-work
- {
- regex : /<!--[\s\S]*?-->/gi,
- replaceVal : ""
- },
- // http://www.1stclassmedia.co.uk/developers/clean-ms-word-formatting.php
- {
- regex : /<\\?\?xml[^>]*>/gi,
- replaceVal : ""
- }, {
- regex : /<\/?\w+:[^>]*>/gi,
- replaceVal : ""
- }, // e.g. <o:p...
- {
- regex : /\s*MSO[-:][^;"']*/gi,
- replaceVal : ""
- }, {
- regex : /\s*MARGIN[-:][^;"']*/gi,
- replaceVal : ""
- }, {
- regex : /\s*PAGE[-:][^;"']*/gi,
- replaceVal : ""
- }, {
- regex : /\s*TAB[-:][^;"']*/gi,
- replaceVal : ""
- }, {
- regex : /\s*LINE[-:][^;"']*/gi,
- replaceVal : ""
- }, {
- regex : /\s*FONT-SIZE[^;"']*/gi,
- replaceVal : ""
- }, {
- regex : /\s*LANG=(["'])[^"']*?\1/gi,
- replaceVal : ""
- },
- // keep new line
- {
- regex : /<(P)[^>]*>([\s\S]*?)<\/\1>/gi,
- replaceVal : "$2<br>"
- }, {
- regex : /<(H\d)[^>]*>([\s\S]*?)<\/\1>/gi,
- replaceVal : "$2"
- },
- {
- regex : /\s*\w+=(["'])((|\s|;)*|\s*;+[^"']*?|[^"']*?;{2,})\1/gi,
- replaceVal : ""
- }, {
- regex : /<span[^>]*>(|\s)*<\/span>/gi,
- replaceVal : ""
- },
- // {regex: /<([^\s>]+)[^>]*>(|\s)*<\/\1>/gi, replaceVal: ""},
- // http://www.codinghorror.com/blog/2006/01/cleaning-words-nasty-html.html
- {
- regex : /<(\/?title|\/?meta|\/?style|\/?st\d|\/?head|\/?html|\/?body|\/?link|!\[)[^>]*?>/gi,
- replaceVal : ""
- }, {
- regex : /(\n(\r)?){2,}/gi,
- replaceVal : ""
- }],
- syncValue1 : function() {
- if (this.initialized) {
- var bd = this.getEditorBody();
- var html = bd.innerHTML;
- if (this.hasDirtyHtmlTags(html)) {
- // Note: the selection will be lost...
- bd.innerHTML = this.cleanHtml(html);
- if (Ext.isGecko) {
- // Gecko hack, see:
- // https://bugzilla.mozilla.org/show_bug.cgi?id=232791#c8
- this.setDesignMode(false); // toggle off first
- this.setDesignMode(true);
- }
- }
- }
- },
- hasDirtyHtmlTags : function(html) {
- if (!html)
- return;
- var hasDirtyHtmlTags = false;
- Ext.each(this.dirtyHtmlTags, function(tag, idx) {
- return !(hasDirtyHtmlTags = html.match(tag.regex));
- });
- return hasDirtyHtmlTags;
- },
- cleanHtml : function(html) {
- if (!html)
- return;
- Ext.each(this.dirtyHtmlTags, function(tag, idx) {
- html = html.replace(tag.regex, tag.replaceVal);
- });
- // http://www.tim-jarrett.com/labs_javascript_scrub_word.php
- html = html.replace(new RegExp(String.fromCharCode(8220), 'gi'), '"'); // “
- html = html.replace(new RegExp(String.fromCharCode(8221), 'gi'), '"'); // ”
- html = html.replace(new RegExp(String.fromCharCode(8216), 'gi'), "'"); // ‘
- html = html.replace(new RegExp(String.fromCharCode(8217), 'gi'), "'"); // ‘
- html = html.replace(new RegExp(String.fromCharCode(8211), 'gi'), "-"); // –
- html = html.replace(new RegExp(String.fromCharCode(8212), 'gi'), "--"); // —
- html = html.replace(new RegExp(String.fromCharCode(189), 'gi'), "1/2"); // ½
- html = html.replace(new RegExp(String.fromCharCode(188), 'gi'), "1/4"); // ¼
- html = html.replace(new RegExp(String.fromCharCode(190), 'gi'), "3/4"); // ¾
- html = html.replace(new RegExp(String.fromCharCode(169), 'gi'), "(C)"); // ©
- html = html.replace(new RegExp(String.fromCharCode(174), 'gi'), "(R)"); // ®
- html = html.replace(new RegExp(String.fromCharCode(8230), 'gi'), "..."); // …
- return FloatHtmlEditor.superclass.cleanHtml.call(this, html);
- }
- })

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