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fontawesome ux.statusbar

luoyifan 3 anos atrás
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      assets/ext-7.0/ux/StatusBar.js

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assets/ext-7.0/ux/StatusBar.js

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+/**
+ * Basic status bar component that can be used as the bottom toolbar of any {@link Ext.Panel}.
+ * In addition to supporting the standard {@link Ext.toolbar.Toolbar} interface for adding buttons,
+ * menus and other items, the StatusBar provides a greedy status element that can be aligned
+ * to either side and has convenient methods for setting the status text and icon. You can also
+ * indicate that something is processing using the {@link #showBusy} method.
+ *
+ *     Ext.create('Ext.Panel', {
+ *         title: 'StatusBar',
+ *         // etc.
+ *         bbar: Ext.create('Ext.ux.StatusBar', {
+ *             id: 'my-status',
+ *      
+ *             // defaults to use when the status is cleared:
+ *             defaultText: 'Default status text',
+ *             defaultIconCls: 'default-icon',
+ *      
+ *             // values to set initially:
+ *             text: 'Ready',
+ *             iconCls: 'ready-icon',
+ *      
+ *             // any standard Toolbar items:
+ *             items: [{
+ *                 text: 'A Button'
+ *             }, '-', 'Plain Text']
+ *         })
+ *     });
+ *
+ *     // Update the status bar later in code:
+ *     var sb = Ext.getCmp('my-status');
+ *     sb.setStatus({
+ *         text: 'OK',
+ *         iconCls: 'ok-icon',
+ *         clear: true // auto-clear after a set interval
+ *     });
+ *
+ *     // Set the status bar to show that something is processing:
+ *     sb.showBusy();
+ *
+ *     // processing....
+ *
+ *     sb.clearStatus(); // once completeed
+ *
+ */
+Ext.define('Ext.ux.statusbar.StatusBar', {
+    extend: 'Ext.toolbar.Toolbar',
+    xtype: 'statusbar',
+    alternateClassName: 'Ext.ux.StatusBar',
+    requires: ['Ext.toolbar.TextItem'],
+    /**
+     * @cfg {String} statusAlign
+     * The alignment of the status element within the overall StatusBar layout. When the StatusBar
+     * is rendered, it creates an internal div containing the status text and icon. Any additional
+     * Toolbar items added in the StatusBar's {@link #cfg-items} config, or added via
+     * {@link #method-add} or any of the supported add* methods, will be rendered, in added order,
+     * to the opposite side.  The status element is greedy, so it will automatically expand
+     * to take up all sapce left over by any other items.  Example usage:
+     *
+     *     // Create a left-aligned status bar containing a button,
+     *     // separator and text item that will be right-aligned (default):
+     *     Ext.create('Ext.Panel', {
+     *         title: 'StatusBar',
+     *         // etc.
+     *         bbar: Ext.create('Ext.ux.statusbar.StatusBar', {
+     *             defaultText: 'Default status text',
+     *             id: 'status-id',
+     *             items: [{
+     *                 text: 'A Button'
+     *             }, '-', 'Plain Text']
+     *         })
+     *     });
+     *
+     *     // By adding the statusAlign config, this will create the
+     *     // exact same toolbar, except the status and toolbar item
+     *     // layout will be reversed from the previous example:
+     *     Ext.create('Ext.Panel', {
+     *         title: 'StatusBar',
+     *         // etc.
+     *         bbar: Ext.create('Ext.ux.statusbar.StatusBar', {
+     *             defaultText: 'Default status text',
+     *             id: 'status-id',
+     *             statusAlign: 'right',
+     *             items: [{
+     *                 text: 'A Button'
+     *             }, '-', 'Plain Text']
+     *         })
+     *     });
+     */
+
+    /**
+     * @cfg {String} [defaultText='']
+     * The default {@link #text} value.  This will be used anytime the status bar is cleared
+     * with the `useDefaults:true` option.
+     */
+
+    /**
+     * @cfg {String} [defaultIconCls='']
+     * The default {@link #iconCls} value (see the iconCls docs for additional details about
+     * customizing the icon). This will be used anytime the status bar is cleared with the
+     * `useDefaults:true` option.
+     */
+
+    /**
+     * @cfg {String} text
+     * A string that will be <b>initially</b> set as the status message.  This string
+     * will be set as innerHTML (html tags are accepted) for the toolbar item.
+     * If not specified, the value set for {@link #defaultText} will be used.
+     */
+
+    /**
+     * @cfg [iconCls='']
+     * @inheritdoc Ext.panel.Header#cfg-iconCls
+     * @localdoc **Note:** This CSS class will be **initially** set as the status bar 
+     * icon.  See also {@link #defaultIconCls} and {@link #busyIconCls}.
+     *
+     * Example usage:
+     *
+     *     // Example CSS rule:
+     *     .x-statusbar .x-status-custom {
+     *         padding-left: 25px;
+     *         background: transparent url(images/custom-icon.gif) no-repeat 3px 2px;
+     *     }
+     *
+     *     // Setting a default icon:
+     *     var sb = Ext.create('Ext.ux.statusbar.StatusBar', {
+     *         defaultIconCls: 'x-status-custom'
+     *     });
+     *
+     *     // Changing the icon:
+     *     sb.setStatus({
+     *         text: 'New status',
+     *         iconCls: 'x-status-custom'
+     *     });
+     */
+
+    /**
+     * @cfg {String} cls
+     * The base class applied to the containing element for this component on render.
+     */
+    cls: 'x-statusbar',
+
+    /**
+     * @cfg {String} busyIconCls
+     * The default {@link #iconCls} applied when calling {@link #showBusy}.
+     * It can be overridden at any time by passing the `iconCls` argument into {@link #showBusy}.
+     */
+    busyIconCls: 'x-status-busy',
+
+    /**
+     * @cfg {String} busyText
+     * The default {@link #text} applied when calling {@link #showBusy}.
+     * It can be overridden at any time by passing the `text` argument into {@link #showBusy}.
+     */
+    busyText: 'Loading...',
+
+    /**
+     * @cfg {Number} autoClear
+     * The number of milliseconds to wait after setting the status via
+     * {@link #setStatus} before automatically clearing the status text and icon.
+     * Note that this only applies when passing the `clear` argument to {@link #setStatus}
+     * since that is the only way to defer clearing the status.  This can
+     * be overridden by specifying a different `wait` value in {@link #setStatus}.
+     * Calls to {@link #clearStatus} always clear the status bar immediately and ignore this value.
+     */
+    autoClear: 5000,
+
+    /**
+     * @cfg {String} emptyText
+     * The text string to use if no text has been set. If there are no other items in
+     * the toolbar using an empty string (`''`) for this value would end up in the toolbar
+     * height collapsing since the empty string will not maintain the toolbar height.
+     * Use `''` if the toolbar should collapse in height vertically when no text is
+     * specified and there are no other items in the toolbar.
+     */
+    emptyText: '&#160;',
+
+    /**
+     * @private
+     */
+    activeThreadId: 0,
+
+    initComponent: function() {
+        var right = this.statusAlign === 'right';
+
+        this.callParent(arguments);
+        this.currIconCls = this.iconCls || this.defaultIconCls;
+        this.statusEl = Ext.create('Ext.toolbar.TextItem', {
+            cls: 'x-status-text ' + (this.currIconCls || ''),
+            text: this.text || this.defaultText || ''
+        });
+
+        if (right) {
+            this.cls += ' x-status-right';
+            this.add('->');
+            this.add(this.statusEl);
+        }
+        else {
+            this.insert(0, this.statusEl);
+            this.insert(1, '->');
+        }
+    },
+
+    /**
+     * Sets the status {@link #text} and/or {@link #iconCls}. Also supports automatically clearing
+     * the status that was set after a specified interval.
+     *
+     * Example usage:
+     *
+     *     // Simple call to update the text
+     *     statusBar.setStatus('New status');
+     *
+     *     // Set the status and icon, auto-clearing with default options:
+     *     statusBar.setStatus({
+     *         text: 'New status',
+     *         iconCls: 'x-status-custom',
+     *         clear: true
+     *     });
+     *
+     *     // Auto-clear with custom options:
+     *     statusBar.setStatus({
+     *         text: 'New status',
+     *         iconCls: 'x-status-custom',
+     *         clear: {
+     *             wait: 8000,
+     *             anim: false,
+     *             useDefaults: false
+     *         }
+     *     });
+     *
+     * @param {Object/String} config A config object specifying what status to set, or a string
+     * assumed to be the status text (and all other options are defaulted as explained below).
+     * A config object containing any or all of the following properties can be passed:
+     *
+     * @param {String} config.text The status text to display.  If not specified, any current
+     * status text will remain unchanged.
+     *
+     * @param {String} config.iconCls The CSS class used to customize the status icon (see
+     * {@link #iconCls} for details). If not specified, any current iconCls will remain unchanged.
+     *
+     * @param {Boolean/Number/Object} config.clear Allows you to set an internal callback that will
+     * automatically clear the status text and iconCls after a specified amount of time has passed.
+     * If clear is not specified, the new status will not be auto-cleared and will stay until
+     * updated again or cleared using {@link #clearStatus}. If `true` is passed, the status will be
+     * cleared using {@link #autoClear}, {@link #defaultText} and {@link #defaultIconCls} via
+     * a fade out animation. If a numeric value is passed, it will be used as the callback interval
+     * (in milliseconds), overriding the {@link #autoClear} value. All other options will be
+     * defaulted as with the boolean option. To customize any other options, you can pass an object
+     * in the format:
+     * 
+     * @param {Number} config.clear.wait The number of milliseconds to wait before clearing
+     * (defaults to {@link #autoClear}).
+     * @param {Boolean} config.clear.anim False to clear the status immediately once the callback
+     * executes (defaults to true which fades the status out).
+     * @param {Boolean} config.clear.useDefaults False to completely clear the status text
+     * and iconCls (defaults to true which uses {@link #defaultText} and {@link #defaultIconCls}).
+     *
+     * @return {Ext.ux.statusbar.StatusBar} this
+     */
+    setStatus: function(config) {
+        var me = this,
+            c, wait, defaults;
+
+        config = config || {};
+        Ext.suspendLayouts();
+
+        if (Ext.isString(config)) {
+            config = { text: config };
+        }
+
+        if (config.text !== undefined) {
+            me.setText(config.text);
+        }
+
+        if (config.iconCls !== undefined) {
+            me.setIcon(config.iconCls);
+        }
+
+        if (config.clear) {
+            c = config.clear;
+            wait = me.autoClear;
+            defaults = { useDefaults: true, anim: true };
+
+            if (Ext.isObject(c)) {
+                c = Ext.applyIf(c, defaults);
+
+                if (c.wait) {
+                    wait = c.wait;
+                }
+            }
+            else if (Ext.isNumber(c)) {
+                wait = c;
+                c = defaults;
+            }
+            else if (Ext.isBoolean(c)) {
+                c = defaults;
+            }
+
+            c.threadId = this.activeThreadId;
+            Ext.defer(me.clearStatus, wait, me, [c]);
+        }
+
+        Ext.resumeLayouts(true);
+
+        return me;
+    },
+
+    /**
+     * Clears the status {@link #text} and {@link #iconCls}. Also supports clearing via an optional
+     * fade out animation.
+     *
+     * @param {Object} [config] A config object containing any or all of the following properties.
+     * If this object is not specified the status will be cleared using the defaults below:
+     * @param {Boolean} config.anim True to clear the status by fading out the status element
+     * (defaults to false which clears immediately).
+     * @param {Boolean} config.useDefaults True to reset the text and icon using
+     * {@link #defaultText} and {@link #defaultIconCls} (defaults to false which sets the text
+     * to '' and removes any existing icon class).
+     *
+     * @return {Ext.ux.statusbar.StatusBar} this
+     */
+    clearStatus: function(config) {
+        var me = this,
+            statusEl = me.statusEl,
+            text, iconCls;
+
+        config = config || {};
+
+        if (me.destroyed || config.threadId && config.threadId !== me.activeThreadId) {
+            // this means the current call was made internally, but a newer
+            // thread has set a message since this call was deferred.  Since
+            // we don't want to overwrite a newer message just ignore.
+            return me;
+        }
+
+        text = config.useDefaults ? me.defaultText : me.emptyText;
+        iconCls = config.useDefaults ? (me.defaultIconCls ? me.defaultIconCls : '') : '';
+
+        if (config.anim) {
+            // animate the statusEl Ext.Element
+            statusEl.el.puff({
+                remove: false,
+                useDisplay: true,
+                callback: function() {
+                    statusEl.el.show();
+                    me.setStatus({
+                        text: text,
+                        iconCls: iconCls
+                    });
+                }
+            });
+        }
+        else {
+            me.setStatus({
+                text: text,
+                iconCls: iconCls
+            });
+        }
+
+        return me;
+    },
+
+    /**
+     * Convenience method for setting the status text directly. For more flexible options see
+     * {@link #setStatus}.
+     * @param {String} text (optional) The text to set (defaults to '')
+     * @return {Ext.ux.statusbar.StatusBar} this
+     */
+    setText: function(text) {
+        var me = this;
+
+        me.activeThreadId++;
+        me.text = text || '';
+
+        if (me.rendered) {
+            me.statusEl.setText(me.text);
+        }
+
+        return me;
+    },
+
+    /**
+     * Returns the current status text.
+     * @return {String} The status text
+     */
+    getText: function() {
+        return this.text;
+    },
+
+    /**
+     * Convenience method for setting the status icon directly. For more flexible options see
+     * {@link #setStatus}.
+     * See {@link #iconCls} for complete details about customizing the icon.
+     * @param {String} cls (optional) The icon class to set (defaults to '', and any current
+     * icon class is removed)
+     * @return {Ext.ux.statusbar.StatusBar} this
+     */
+    setIcon: function(cls) {
+        var me = this;
+
+        me.activeThreadId++;
+        cls = cls || '';
+
+        if (me.rendered) {
+            if (me.currIconCls) {
+                me.statusEl.removeCls(me.currIconCls);
+                me.currIconCls = null;
+            }
+
+            if (cls.length > 0) {
+                me.statusEl.addCls(cls);
+                me.currIconCls = cls;
+            }
+        }
+        else {
+            me.currIconCls = cls;
+        }
+
+        return me;
+    },
+
+    /**
+     * Convenience method for setting the status text and icon to special values that are
+     * pre-configured to indicate a "busy" state, usually for loading or processing activities.
+     *
+     * @param {Object/String} config (optional) A config object in the same format supported by
+     * {@link #setStatus}, or a string to use as the status text (in which case all other options
+     * for setStatus will be defaulted). Use the `text` and/or `iconCls` properties on the config
+     * to override the default {@link #busyText} and {@link #busyIconCls} settings. If the config
+     * argument is not specified, {@link #busyText} and {@link #busyIconCls} will be used
+     * in conjunction with all of the default options for {@link #setStatus}.
+     * @return {Ext.ux.statusbar.StatusBar} this
+     */
+    showBusy: function(config) {
+        if (Ext.isString(config)) {
+            config = { text: config };
+        }
+
+        config = Ext.applyIf(config || {}, {
+            text: this.busyText,
+            iconCls: this.busyIconCls
+        });
+
+        return this.setStatus(config);
+    }
+});