MessageBox.js
资源名称:ext-3.0.0.zip [点击查看]
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上传日期:2018-01-28
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源码类别:
中间件编程
开发平台:
JavaScript
- /*!
- * Ext JS Library 3.0.0
- * Copyright(c) 2006-2009 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
- /**
- * @class Ext.MessageBox
- * <p>Utility class for generating different styles of message boxes. The alias Ext.Msg can also be used.<p/>
- * <p>Note that the MessageBox is asynchronous. Unlike a regular JavaScript <code>alert</code> (which will halt
- * browser execution), showing a MessageBox will not cause the code to stop. For this reason, if you have code
- * that should only run <em>after</em> some user feedback from the MessageBox, you must use a callback function
- * (see the <code>function</code> parameter for {@link #show} for more details).</p>
- * <p>Example usage:</p>
- *<pre><code>
- // Basic alert:
- Ext.Msg.alert('Status', 'Changes saved successfully.');
- // Prompt for user data and process the result using a callback:
- Ext.Msg.prompt('Name', 'Please enter your name:', function(btn, text){
- if (btn == 'ok'){
- // process text value and close...
- }
- });
- // Show a dialog using config options:
- Ext.Msg.show({
- title:'Save Changes?',
- msg: 'You are closing a tab that has unsaved changes. Would you like to save your changes?',
- buttons: Ext.Msg.YESNOCANCEL,
- fn: processResult,
- animEl: 'elId',
- icon: Ext.MessageBox.QUESTION
- });
- </code></pre>
- * @singleton
- */
- Ext.MessageBox = function(){
- var dlg, opt, mask, waitTimer;
- var bodyEl, msgEl, textboxEl, textareaEl, progressBar, pp, iconEl, spacerEl;
- var buttons, activeTextEl, bwidth, iconCls = '';
- // private
- var handleButton = function(button){
- if(dlg.isVisible()){
- dlg.hide();
- handleHide();
- Ext.callback(opt.fn, opt.scope||window, [button, activeTextEl.dom.value, opt], 1);
- }
- };
- // private
- var handleHide = function(){
- if(opt && opt.cls){
- dlg.el.removeClass(opt.cls);
- }
- progressBar.reset();
- };
- // private
- var handleEsc = function(d, k, e){
- if(opt && opt.closable !== false){
- dlg.hide();
- handleHide();
- }
- if(e){
- e.stopEvent();
- }
- };
- // private
- var updateButtons = function(b){
- var width = 0;
- if(!b){
- buttons["ok"].hide();
- buttons["cancel"].hide();
- buttons["yes"].hide();
- buttons["no"].hide();
- return width;
- }
- dlg.footer.dom.style.display = '';
- for(var k in buttons){
- if(typeof buttons[k] != "function"){
- if(b[k]){
- buttons[k].show();
- buttons[k].setText(typeof b[k] == "string" ? b[k] : Ext.MessageBox.buttonText[k]);
- width += buttons[k].el.getWidth()+15;
- }else{
- buttons[k].hide();
- }
- }
- }
- return width;
- };
- return {
- /**
- * Returns a reference to the underlying {@link Ext.Window} element
- * @return {Ext.Window} The window
- */
- getDialog : function(titleText){
- if(!dlg){
- dlg = new Ext.Window({
- autoCreate : true,
- title:titleText,
- resizable:false,
- constrain:true,
- constrainHeader:true,
- minimizable : false,
- maximizable : false,
- stateful: false,
- modal: true,
- shim:true,
- buttonAlign:"center",
- width:400,
- height:100,
- minHeight: 80,
- plain:true,
- footer:true,
- closable:true,
- close : function(){
- if(opt && opt.buttons && opt.buttons.no && !opt.buttons.cancel){
- handleButton("no");
- }else{
- handleButton("cancel");
- }
- }
- });
- buttons = {};
- var bt = this.buttonText;
- //TODO: refactor this block into a buttons config to pass into the Window constructor
- buttons["ok"] = dlg.addButton(bt["ok"], handleButton.createCallback("ok"));
- buttons["yes"] = dlg.addButton(bt["yes"], handleButton.createCallback("yes"));
- buttons["no"] = dlg.addButton(bt["no"], handleButton.createCallback("no"));
- buttons["cancel"] = dlg.addButton(bt["cancel"], handleButton.createCallback("cancel"));
- buttons["ok"].hideMode = buttons["yes"].hideMode = buttons["no"].hideMode = buttons["cancel"].hideMode = 'offsets';
- dlg.render(document.body);
- dlg.getEl().addClass('x-window-dlg');
- mask = dlg.mask;
- bodyEl = dlg.body.createChild({
- html:'<div class="ext-mb-icon"></div><div class="ext-mb-content"><span class="ext-mb-text"></span><br /><div class="ext-mb-fix-cursor"><input type="text" class="ext-mb-input" /><textarea class="ext-mb-textarea"></textarea></div></div>'
- });
- iconEl = Ext.get(bodyEl.dom.firstChild);
- var contentEl = bodyEl.dom.childNodes[1];
- msgEl = Ext.get(contentEl.firstChild);
- textboxEl = Ext.get(contentEl.childNodes[2].firstChild);
- textboxEl.enableDisplayMode();
- textboxEl.addKeyListener([10,13], function(){
- if(dlg.isVisible() && opt && opt.buttons){
- if(opt.buttons.ok){
- handleButton("ok");
- }else if(opt.buttons.yes){
- handleButton("yes");
- }
- }
- });
- textareaEl = Ext.get(contentEl.childNodes[2].childNodes[1]);
- textareaEl.enableDisplayMode();
- progressBar = new Ext.ProgressBar({
- renderTo:bodyEl
- });
- bodyEl.createChild({cls:'x-clear'});
- }
- return dlg;
- },
- /**
- * Updates the message box body text
- * @param {String} text (optional) Replaces the message box element's innerHTML with the specified string (defaults to
- * the XHTML-compliant non-breaking space character '&#160;')
- * @return {Ext.MessageBox} this
- */
- updateText : function(text){
- if(!dlg.isVisible() && !opt.width){
- dlg.setSize(this.maxWidth, 100); // resize first so content is never clipped from previous shows
- }
- msgEl.update(text || ' ');
- var iw = iconCls != '' ? (iconEl.getWidth() + iconEl.getMargins('lr')) : 0;
- var mw = msgEl.getWidth() + msgEl.getMargins('lr');
- var fw = dlg.getFrameWidth('lr');
- var bw = dlg.body.getFrameWidth('lr');
- if (Ext.isIE && iw > 0){
- //3 pixels get subtracted in the icon CSS for an IE margin issue,
- //so we have to add it back here for the overall width to be consistent
- iw += 3;
- }
- var w = Math.max(Math.min(opt.width || iw+mw+fw+bw, this.maxWidth),
- Math.max(opt.minWidth || this.minWidth, bwidth || 0));
- if(opt.prompt === true){
- activeTextEl.setWidth(w-iw-fw-bw);
- }
- if(opt.progress === true || opt.wait === true){
- progressBar.setSize(w-iw-fw-bw);
- }
- if(Ext.isIE && w == bwidth){
- w += 4; //Add offset when the content width is smaller than the buttons.
- }
- dlg.setSize(w, 'auto').center();
- return this;
- },
- /**
- * Updates a progress-style message box's text and progress bar. Only relevant on message boxes
- * initiated via {@link Ext.MessageBox#progress} or {@link Ext.MessageBox#wait},
- * or by calling {@link Ext.MessageBox#show} with progress: true.
- * @param {Number} value Any number between 0 and 1 (e.g., .5, defaults to 0)
- * @param {String} progressText The progress text to display inside the progress bar (defaults to '')
- * @param {String} msg The message box's body text is replaced with the specified string (defaults to undefined
- * so that any existing body text will not get overwritten by default unless a new value is passed in)
- * @return {Ext.MessageBox} this
- */
- updateProgress : function(value, progressText, msg){
- progressBar.updateProgress(value, progressText);
- if(msg){
- this.updateText(msg);
- }
- return this;
- },
- /**
- * Returns true if the message box is currently displayed
- * @return {Boolean} True if the message box is visible, else false
- */
- isVisible : function(){
- return dlg && dlg.isVisible();
- },
- /**
- * Hides the message box if it is displayed
- * @return {Ext.MessageBox} this
- */
- hide : function(){
- var proxy = dlg ? dlg.activeGhost : null;
- if(this.isVisible() || proxy){
- dlg.hide();
- handleHide();
- if (proxy){
- // unghost is a private function, but i saw no better solution
- // to fix the locking problem when dragging while it closes
- dlg.unghost(false, false);
- }
- }
- return this;
- },
- /**
- * Displays a new message box, or reinitializes an existing message box, based on the config options
- * passed in. All display functions (e.g. prompt, alert, etc.) on MessageBox call this function internally,
- * although those calls are basic shortcuts and do not support all of the config options allowed here.
- * @param {Object} config The following config options are supported: <ul>
- * <li><b>animEl</b> : String/Element<div class="sub-desc">An id or Element from which the message box should animate as it
- * opens and closes (defaults to undefined)</div></li>
- * <li><b>buttons</b> : Object/Boolean<div class="sub-desc">A button config object (e.g., Ext.MessageBox.OKCANCEL or {ok:'Foo',
- * cancel:'Bar'}), or false to not show any buttons (defaults to false)</div></li>
- * <li><b>closable</b> : Boolean<div class="sub-desc">False to hide the top-right close button (defaults to true). Note that
- * progress and wait dialogs will ignore this property and always hide the close button as they can only
- * be closed programmatically.</div></li>
- * <li><b>cls</b> : String<div class="sub-desc">A custom CSS class to apply to the message box's container element</div></li>
- * <li><b>defaultTextHeight</b> : Number<div class="sub-desc">The default height in pixels of the message box's multiline textarea
- * if displayed (defaults to 75)</div></li>
- * <li><b>fn</b> : Function<div class="sub-desc">A callback function which is called when the dialog is dismissed either
- * by clicking on the configured buttons, or on the dialog close button, or by pressing
- * the return button to enter input.
- * <p>Progress and wait dialogs will ignore this option since they do not respond to user
- * actions and can only be closed programmatically, so any required function should be called
- * by the same code after it closes the dialog. Parameters passed:<ul>
- * <li><b>buttonId</b> : String<div class="sub-desc">The ID of the button pressed, one of:<div class="sub-desc"><ul>
- * <li><tt>ok</tt></li>
- * <li><tt>yes</tt></li>
- * <li><tt>no</tt></li>
- * <li><tt>cancel</tt></li>
- * </ul></div></div></li>
- * <li><b>text</b> : String<div class="sub-desc">Value of the input field if either <tt><a href="#show-option-prompt" ext:member="show-option-prompt" ext:cls="Ext.MessageBox">prompt</a></tt>
- * or <tt><a href="#show-option-multiline" ext:member="show-option-multiline" ext:cls="Ext.MessageBox">multiline</a></tt> is true</div></li>
- * <li><b>opt</b> : Object<div class="sub-desc">The config object passed to show.</div></li>
- * </ul></p></div></li>
- * <li><b>scope</b> : Object<div class="sub-desc">The scope of the callback function</div></li>
- * <li><b>icon</b> : String<div class="sub-desc">A CSS class that provides a background image to be used as the body icon for the
- * dialog (e.g. Ext.MessageBox.WARNING or 'custom-class') (defaults to '')</div></li>
- * <li><b>iconCls</b> : String<div class="sub-desc">The standard {@link Ext.Window#iconCls} to
- * add an optional header icon (defaults to '')</div></li>
- * <li><b>maxWidth</b> : Number<div class="sub-desc">The maximum width in pixels of the message box (defaults to 600)</div></li>
- * <li><b>minWidth</b> : Number<div class="sub-desc">The minimum width in pixels of the message box (defaults to 100)</div></li>
- * <li><b>modal</b> : Boolean<div class="sub-desc">False to allow user interaction with the page while the message box is
- * displayed (defaults to true)</div></li>
- * <li><b>msg</b> : String<div class="sub-desc">A string that will replace the existing message box body text (defaults to the
- * XHTML-compliant non-breaking space character '&#160;')</div></li>
- * <li><a id="show-option-multiline"></a><b>multiline</b> : Boolean<div class="sub-desc">
- * True to prompt the user to enter multi-line text (defaults to false)</div></li>
- * <li><b>progress</b> : Boolean<div class="sub-desc">True to display a progress bar (defaults to false)</div></li>
- * <li><b>progressText</b> : String<div class="sub-desc">The text to display inside the progress bar if progress = true (defaults to '')</div></li>
- * <li><a id="show-option-prompt"></a><b>prompt</b> : Boolean<div class="sub-desc">True to prompt the user to enter single-line text (defaults to false)</div></li>
- * <li><b>proxyDrag</b> : Boolean<div class="sub-desc">True to display a lightweight proxy while dragging (defaults to false)</div></li>
- * <li><b>title</b> : String<div class="sub-desc">The title text</div></li>
- * <li><b>value</b> : String<div class="sub-desc">The string value to set into the active textbox element if displayed</div></li>
- * <li><b>wait</b> : Boolean<div class="sub-desc">True to display a progress bar (defaults to false)</div></li>
- * <li><b>waitConfig</b> : Object<div class="sub-desc">A {@link Ext.ProgressBar#waitConfig} object (applies only if wait = true)</div></li>
- * <li><b>width</b> : Number<div class="sub-desc">The width of the dialog in pixels</div></li>
- * </ul>
- * Example usage:
- * <pre><code>
- Ext.Msg.show({
- title: 'Address',
- msg: 'Please enter your address:',
- width: 300,
- buttons: Ext.MessageBox.OKCANCEL,
- multiline: true,
- fn: saveAddress,
- animEl: 'addAddressBtn',
- icon: Ext.MessageBox.INFO
- });
- </code></pre>
- * @return {Ext.MessageBox} this
- */
- show : function(options){
- if(this.isVisible()){
- this.hide();
- }
- opt = options;
- var d = this.getDialog(opt.title || " ");
- d.setTitle(opt.title || " ");
- var allowClose = (opt.closable !== false && opt.progress !== true && opt.wait !== true);
- d.tools.close.setDisplayed(allowClose);
- activeTextEl = textboxEl;
- opt.prompt = opt.prompt || (opt.multiline ? true : false);
- if(opt.prompt){
- if(opt.multiline){
- textboxEl.hide();
- textareaEl.show();
- textareaEl.setHeight(typeof opt.multiline == "number" ?
- opt.multiline : this.defaultTextHeight);
- activeTextEl = textareaEl;
- }else{
- textboxEl.show();
- textareaEl.hide();
- }
- }else{
- textboxEl.hide();
- textareaEl.hide();
- }
- activeTextEl.dom.value = opt.value || "";
- if(opt.prompt){
- d.focusEl = activeTextEl;
- }else{
- var bs = opt.buttons;
- var db = null;
- if(bs && bs.ok){
- db = buttons["ok"];
- }else if(bs && bs.yes){
- db = buttons["yes"];
- }
- if (db){
- d.focusEl = db;
- }
- }
- if(opt.iconCls){
- d.setIconClass(opt.iconCls);
- }
- this.setIcon(opt.icon);
- if(opt.cls){
- d.el.addClass(opt.cls);
- }
- d.proxyDrag = opt.proxyDrag === true;
- d.modal = opt.modal !== false;
- d.mask = opt.modal !== false ? mask : false;
- d.on('show', function(){
- //workaround for window internally enabling keymap in afterShow
- d.keyMap.setDisabled(allowClose !== true);
- d.doLayout();
- this.setIcon(opt.icon);
- bwidth = updateButtons(opt.buttons);
- progressBar.setVisible(opt.progress === true || opt.wait === true);
- this.updateProgress(0, opt.progressText);
- this.updateText(opt.msg);
- if(opt.wait === true){
- progressBar.wait(opt.waitConfig);
- }
- }, this, {single:true});
- if(!d.isVisible()){
- // force it to the end of the z-index stack so it gets a cursor in FF
- document.body.appendChild(dlg.el.dom);
- d.setAnimateTarget(opt.animEl);
- d.show(opt.animEl);
- }
- return this;
- },
- /**
- * Adds the specified icon to the dialog. By default, the class 'ext-mb-icon' is applied for default
- * styling, and the class passed in is expected to supply the background image url. Pass in empty string ('')
- * to clear any existing icon. The following built-in icon classes are supported, but you can also pass
- * in a custom class name:
- * <pre>
- Ext.MessageBox.INFO
- Ext.MessageBox.WARNING
- Ext.MessageBox.QUESTION
- Ext.MessageBox.ERROR
- *</pre>
- * @param {String} icon A CSS classname specifying the icon's background image url, or empty string to clear the icon
- * @return {Ext.MessageBox} this
- */
- setIcon : function(icon){
- if(icon && icon != ''){
- iconEl.removeClass('x-hidden');
- iconEl.replaceClass(iconCls, icon);
- bodyEl.addClass('x-dlg-icon');
- iconCls = icon;
- }else{
- iconEl.replaceClass(iconCls, 'x-hidden');
- bodyEl.removeClass('x-dlg-icon');
- iconCls = '';
- }
- return this;
- },
- /**
- * Displays a message box with a progress bar. This message box has no buttons and is not closeable by
- * the user. You are responsible for updating the progress bar as needed via {@link Ext.MessageBox#updateProgress}
- * and closing the message box when the process is complete.
- * @param {String} title The title bar text
- * @param {String} msg The message box body text
- * @param {String} progressText (optional) The text to display inside the progress bar (defaults to '')
- * @return {Ext.MessageBox} this
- */
- progress : function(title, msg, progressText){
- this.show({
- title : title,
- msg : msg,
- buttons: false,
- progress:true,
- closable:false,
- minWidth: this.minProgressWidth,
- progressText: progressText
- });
- return this;
- },
- /**
- * Displays a message box with an infinitely auto-updating progress bar. This can be used to block user
- * interaction while waiting for a long-running process to complete that does not have defined intervals.
- * You are responsible for closing the message box when the process is complete.
- * @param {String} msg The message box body text
- * @param {String} title (optional) The title bar text
- * @param {Object} config (optional) A {@link Ext.ProgressBar#waitConfig} object
- * @return {Ext.MessageBox} this
- */
- wait : function(msg, title, config){
- this.show({
- title : title,
- msg : msg,
- buttons: false,
- closable:false,
- wait:true,
- modal:true,
- minWidth: this.minProgressWidth,
- waitConfig: config
- });
- return this;
- },
- /**
- * Displays a standard read-only message box with an OK button (comparable to the basic JavaScript alert prompt).
- * If a callback function is passed it will be called after the user clicks the button, and the
- * id of the button that was clicked will be passed as the only parameter to the callback
- * (could also be the top-right close button).
- * @param {String} title The title bar text
- * @param {String} msg The message box body text
- * @param {Function} fn (optional) The callback function invoked after the message box is closed
- * @param {Object} scope (optional) The scope of the callback function
- * @return {Ext.MessageBox} this
- */
- alert : function(title, msg, fn, scope){
- this.show({
- title : title,
- msg : msg,
- buttons: this.OK,
- fn: fn,
- scope : scope
- });
- return this;
- },
- /**
- * Displays a confirmation message box with Yes and No buttons (comparable to JavaScript's confirm).
- * If a callback function is passed it will be called after the user clicks either button,
- * and the id of the button that was clicked will be passed as the only parameter to the callback
- * (could also be the top-right close button).
- * @param {String} title The title bar text
- * @param {String} msg The message box body text
- * @param {Function} fn (optional) The callback function invoked after the message box is closed
- * @param {Object} scope (optional) The scope of the callback function
- * @return {Ext.MessageBox} this
- */
- confirm : function(title, msg, fn, scope){
- this.show({
- title : title,
- msg : msg,
- buttons: this.YESNO,
- fn: fn,
- scope : scope,
- icon: this.QUESTION
- });
- return this;
- },
- /**
- * Displays a message box with OK and Cancel buttons prompting the user to enter some text (comparable to JavaScript's prompt).
- * The prompt can be a single-line or multi-line textbox. If a callback function is passed it will be called after the user
- * clicks either button, and the id of the button that was clicked (could also be the top-right
- * close button) and the text that was entered will be passed as the two parameters to the callback.
- * @param {String} title The title bar text
- * @param {String} msg The message box body text
- * @param {Function} fn (optional) The callback function invoked after the message box is closed
- * @param {Object} scope (optional) The scope of the callback function
- * @param {Boolean/Number} multiline (optional) True to create a multiline textbox using the defaultTextHeight
- * property, or the height in pixels to create the textbox (defaults to false / single-line)
- * @param {String} value (optional) Default value of the text input element (defaults to '')
- * @return {Ext.MessageBox} this
- */
- prompt : function(title, msg, fn, scope, multiline, value){
- this.show({
- title : title,
- msg : msg,
- buttons: this.OKCANCEL,
- fn: fn,
- minWidth:250,
- scope : scope,
- prompt:true,
- multiline: multiline,
- value: value
- });
- return this;
- },
- /**
- * Button config that displays a single OK button
- * @type Object
- */
- OK : {ok:true},
- /**
- * Button config that displays a single Cancel button
- * @type Object
- */
- CANCEL : {cancel:true},
- /**
- * Button config that displays OK and Cancel buttons
- * @type Object
- */
- OKCANCEL : {ok:true, cancel:true},
- /**
- * Button config that displays Yes and No buttons
- * @type Object
- */
- YESNO : {yes:true, no:true},
- /**
- * Button config that displays Yes, No and Cancel buttons
- * @type Object
- */
- YESNOCANCEL : {yes:true, no:true, cancel:true},
- /**
- * The CSS class that provides the INFO icon image
- * @type String
- */
- INFO : 'ext-mb-info',
- /**
- * The CSS class that provides the WARNING icon image
- * @type String
- */
- WARNING : 'ext-mb-warning',
- /**
- * The CSS class that provides the QUESTION icon image
- * @type String
- */
- QUESTION : 'ext-mb-question',
- /**
- * The CSS class that provides the ERROR icon image
- * @type String
- */
- ERROR : 'ext-mb-error',
- /**
- * The default height in pixels of the message box's multiline textarea if displayed (defaults to 75)
- * @type Number
- */
- defaultTextHeight : 75,
- /**
- * The maximum width in pixels of the message box (defaults to 600)
- * @type Number
- */
- maxWidth : 600,
- /**
- * The minimum width in pixels of the message box (defaults to 110)
- * @type Number
- */
- minWidth : 110,
- /**
- * The minimum width in pixels of the message box if it is a progress-style dialog. This is useful
- * for setting a different minimum width than text-only dialogs may need (defaults to 250)
- * @type Number
- */
- minProgressWidth : 250,
- /**
- * An object containing the default button text strings that can be overriden for localized language support.
- * Supported properties are: ok, cancel, yes and no. Generally you should include a locale-specific
- * resource file for handling language support across the framework.
- * Customize the default text like so: Ext.MessageBox.buttonText.yes = "oui"; //french
- * @type Object
- */
- buttonText : {
- ok : "OK",
- cancel : "Cancel",
- yes : "Yes",
- no : "No"
- }
- };
- }();
- /**
- * Shorthand for {@link Ext.MessageBox}
- */
- Ext.Msg = Ext.MessageBox;