/** * SegmentedButton is a container for a group of {@link Ext.button.Button Button}s. You * may populate the segmented button's children by adding buttons to the items config. The segmented * button's children enjoy the same customizations as regular buttons, such as * menu, tooltip, etc. You can see usages of the various configuration * possibilities in the example below. * * @example @preview * Ext.create('Ext.button.Segmented', { * renderTo: Ext.getBody(), * allowMultiple: true, * items: [{ * text: 'Segment Item 1', * menu: [{ * text: 'Menu Item 1' * }] * },{ * text: 'Segment Item 2', * tooltip: 'My custom tooltip' * },{ * text: 'Segment Item 3' * }], * listeners: { * toggle: function(container, button, pressed) { * console.log("User toggled the '" + button.text + "' button: " + (pressed ? 'on' : 'off')); * } * } * }); * */Ext.define('Ext.button.Segmented', { extend: 'Ext.container.Container', xtype: 'segmentedbutton', requires: [ 'Ext.button.Button', 'Ext.layout.container.SegmentedButton' ], config: { /** * @cfg {Boolean} * Allow toggling the pressed state of each button. * Only applicable when {@link #allowMultiple} is `false`. */ allowDepress: false, /** * @cfg {Boolean} * Allow multiple pressed buttons. */ allowMultiple: false, /** * @cfg {Boolean} * If {@link #allowMultiple} is `true`, this config may be set to `true` to indicate that at least * one button in the set must remain pressed at all times. * * If no {@link #value} is configured, and no child buttons are configured `pressed`, the first child * button is set `pressed: true` */ forceSelection: false, /** * @cfg {Boolean} * True to enable pressed/not pressed toggling. */ allowToggle: true, /** * @cfg {Boolean} * True to align the buttons vertically */ vertical: false, /** * @cfg {String} * Default {@link Ext.Component#ui ui} to use for buttons in this segmented button. * Buttons can override this default by specifying their own UI */ defaultUI: 'default' }, beforeRenderConfig: { /** * @cfg {String/Number/String[]/Number[]} * @accessor * The value of this button. When {@link #allowMultiple} is `false`, value is a * String or Number. When {@link #allowMultiple} is `true`, value is an array * of values. A value corresponds to a child button's {@link Ext.button.Button#value * value}, or its index if no child button values match the given value. * * Using the `value` config of the child buttons with single toggle: * * @example * var button = Ext.create('Ext.button.Segmented', { * renderTo: Ext.getBody(), * value: 'optTwo', // begin with "Option Two" selected * items: [{ * text: 'Option One', * value: 'optOne' * }, { * text: 'Option Two', * value: 'optTwo' * }, { * text: 'Option Three', * value: 'optThree' * }] * }); * * console.log(button.getValue()); // optTwo * * // Sets the value to optOne, and sets the pressed state of the "Option One" button * button.setValue('optOne'); * * console.log(button.getValue()); // optOne * * Using multiple toggle, and index-based values: * * @example * var button = Ext.create('Ext.button.Segmented', { * renderTo: Ext.getBody(), * allowMultiple: true * value: [1, 2], // begin with "Option Two" and "Option Three" selected * items: [{ * text: 'Option One' * }, { * text: 'Option Two' * }, { * text: 'Option Three' * }] * }); * * // Sets value to [0, 2], and sets pressed state of "Option One" and "Option Three" * button.setValue([0, 2]); * * console.log(button.getValue()); // [0, 2] * * // Remove all pressed buttons, and set value to null * button.setValue(null); */ value: undefined }, /** * @inheritdoc */ defaultBindProperty: 'value', publishes: ['value'], twoWayBindable: ['value'], layout: 'segmentedbutton', defaultType: 'button', maskOnDisable: false, isSegmentedButton: true, baseCls: Ext.baseCSSPrefix + 'segmented-button', itemCls: Ext.baseCSSPrefix + 'segmented-button-item', /** * @private */ _firstCls: Ext.baseCSSPrefix + 'segmented-button-first', /** * @private */ _lastCls: Ext.baseCSSPrefix + 'segmented-button-last', /** * @private */ _middleCls: Ext.baseCSSPrefix + 'segmented-button-middle', /** * @event toggle * Fires when any child button's pressed state has changed. * @param {Ext.button.Segmented} this * @param {Ext.button.Button} button The toggled button. * @param {Boolean} isPressed `true` to indicate if the button was pressed. */ /** * @event change * Fires when any child button's pressed state has changed and caused the value to change. * @param {Ext.button.Segmented} this * @param {Array} newValue The new value. * @param {Array} oldValue The old value. */ applyValue: function(value, oldValue) { var me = this, allowMultiple = me.getAllowMultiple(), buttonValue, button, values, oldValues, items, i, ln, hasPressed; values = (value instanceof Array) ? value : (value == null) ? [] : [value]; oldValues = (oldValue instanceof Array) ? oldValue : (oldValue == null) ? [] : [oldValue]; // Set a flag to tell our toggle listener not to respond to the buttons' toggle // events while we are applying the value. me._isApplyingValue = true; if (!me.rendered) { // first time - add values of buttons with an initial config of pressed:true items = me.items.items; for (i = items.length - 1; i >= 0; i--) { button = items[i]; // If we've got back to zero with no pressed buttons and have forceSelection, // then make button zero pressed. if (me.forceSelection && !i && !hasPressed) { button.pressed = true; } if (button.pressed) { hasPressed = true; buttonValue = button.value; if (buttonValue == null) { buttonValue = me.items.indexOf(button); } // We're looping backwards, unshift the values into the front of the array if (!Ext.Array.contains(values, buttonValue)) { values.unshift(buttonValue); } } } } ln = values.length; //<debug> if (ln > 1 && !allowMultiple) { Ext.raise('Cannot set multiple values when allowMultiple is false'); } //</debug> // press all buttons corresponding to the values for (i = 0; i < ln; i++) { value = values[i]; button = me._lookupButtonByValue(value); if (button) { buttonValue = button.value; if ((buttonValue != null) && buttonValue !== value) { // button has a value, but it was matched by index. // transform the index into the button value values[i] = buttonValue; } if (!button.pressed) { button.setPressed(true); } } //<debug> else { // no matched button. fail. Ext.raise("Invalid value '" + value + "' for segmented button: '" + me.id + "'"); } //</debug> } value = allowMultiple ? values : ln ? values[0] : null; // unpress buttons for the old values, if they do not exist in the new values array for (i = 0, ln = oldValues.length; i < ln; i++) { oldValue = oldValues[i]; if (!Ext.Array.contains(values, oldValue)) { me._lookupButtonByValue(oldValue).setPressed(false); } } me._isApplyingValue = false; return value; }, updateValue: function (value, oldValue) { var me = this, same; if (me.hasListeners.change) { if (value && oldValue && me.getAllowMultiple()) { same = Ext.Array.equals(value, oldValue); } if (!same) { me.fireEvent('change', me, value, oldValue); } } }, beforeRender: function() { var me = this; me.addCls(me.baseCls + me._getClsSuffix()); me._syncItemClasses(true); me.callParent(); }, onAdd: function(item) { var me = this, syncItemClasses = '_syncItemClasses'; //<debug> var items = me.items.items, ln = items.length, i = 0, value, defaultUI; if (item.ui === 'default' && !item.hasOwnProperty('ui')) { defaultUI = me.getDefaultUI(); if (defaultUI !== 'default') { item.ui = defaultUI; } } for(; i < ln; i++) { if (items[i] !== item) { value = items[i].value; if (value != null && value === item.value) { Ext.raise("Segmented button '" + me.id + "' cannot contain multiple items with value: '" + value + "'"); } } } //</debug> me.mon(item, { hide: syncItemClasses, show: syncItemClasses, beforetoggle: '_onBeforeItemToggle', toggle: '_onItemToggle', scope: me }); if (me.getAllowToggle()) { item.enableToggle = true; if (!me.getAllowMultiple()) { item.toggleGroup = me.getId(); item.allowDepress = me.getAllowDepress(); } } item.addCls(me.itemCls + me._getClsSuffix()); me._syncItemClasses(); me.callParent([item]); }, onRemove: function(item) { var me = this; item.removeCls(me.itemCls + me._getClsSuffix()); me._syncItemClasses(); me.callParent([item]); }, beforeLayout: function() { if (Ext.isChrome) { // workaround for a chrome bug with table-layout:fixed elements where the element // is layed out with 0 width, for example, in the following test case, without // this workaround the segmented button has 0 width in chrome: // // Ext.create({ // renderTo: document.body, // xtype: 'toolbar', // items: [{ // xtype: 'segmentedbutton', // items: [{ // text: 'Foo' // }] // }] // }); // // reading offsetWidth corrects the issue. this.el.dom.offsetWidth; // jshint ignore:line } this.callParent(); }, updateDefaultUI: function(defaultUI) { var items = this.items, item, i, ln; if (this.rendered) { Ext.raise("Changing the ui config of a segmented button after render is not supported."); } else if (items) { if (items.items) { // Mixed collection already created items = items.items; } for (i = 0, ln = items.length; i < ln; i++) { item = items[i]; if (item.ui === 'default' && defaultUI !== 'default' && !item.hasOwnProperty('ui') ) { items[i].ui = defaultUI; } } } }, //<debug> updateAllowDepress: function(newAllowDepress, oldAllowDepress) { if (this.rendered && (newAllowDepress !== oldAllowDepress)) { Ext.raise("Changing the allowDepress config of a segmented button after render is not supported."); } }, updateAllowMultiple: function(newAllowMultiple, oldAllowMultiple) { if (this.rendered && (newAllowMultiple !== oldAllowMultiple)) { Ext.raise("Changing the allowMultiple config of a segmented button after render is not supported."); } }, updateAllowToggle: function(newAllowToggle, oldAllowToggle) { if (this.rendered && (newAllowToggle !== oldAllowToggle)) { Ext.raise("Changing the allowToggle config of a segmented button after render is not supported."); } }, updateVertical: function(newVertical, oldVertical) { if (this.rendered && (newVertical !== oldVertical)) { Ext.raise("Changing the orientation of a segmented button after render is not supported."); } }, //</debug> privates: { _getClsSuffix: function() { return this.getVertical() ? '-vertical' : '-horizontal'; }, // rtl hook _getFirstCls: function() { return this._firstCls; }, // rtl hook _getLastCls: function() { return this._lastCls; }, /** * Looks up a child button by its value * @private * @param {String/Number} value The button's value or index * @return {Ext.button.Button} */ _lookupButtonByValue: function(value) { var items = this.items.items, ln = items.length, i = 0, button = null, buttonValue, btn; for (; i < ln; i++) { btn = items[i]; buttonValue = btn.value; if ((buttonValue != null) && buttonValue === value) { button = btn; break; } } if (!button && typeof value === 'number') { // no button matched by value, assume value is an index button = items[value]; } return button; }, _onBeforeItemToggle: function(button, pressed) { // If we allow multiple selections, and we are forcing a selection, and we are unpressing // and we only have one value, then veto this. we are not allowing the selection length // to fall to zero. if (this.allowMultiple && this.forceSelection && !pressed && this.getValue().length === 1) { return false; } }, /** * Handles the "toggle" event of the child buttons. * @private * @param {Ext.button.Button} button * @param {Boolean} pressed */ _onItemToggle: function(button, pressed) { if (this._isApplyingValue) { return; } var me = this, Array = Ext.Array, allowMultiple = me.allowMultiple, buttonValue = (button.value != null) ? button.value : me.items.indexOf(button), value = me.getValue(), valueIndex; if (allowMultiple) { valueIndex = Array.indexOf(value, buttonValue); } if (pressed) { if (allowMultiple) { if (valueIndex === -1) { // We must not mutate our value property here value = Array.slice(value); value.push(buttonValue); } } else { value = buttonValue; } } else { if (allowMultiple) { if (valueIndex > -1) { // We must not mutate our value property here value = Array.slice(value); value.splice(valueIndex, 1); } } else if (value === buttonValue) { value = null; } } me.setValue(value); me.fireEvent('toggle', me, button, pressed); }, /** * Synchronizes the "first", "last", and "middle" css classes when buttons are * added, removed, shown, or hidden * @private * @param {Boolean} force force sync even if not rendered. */ _syncItemClasses: function(force) { var me = this, firstCls, middleCls, lastCls, items, ln, visibleItems, item, i; if (!force && !me.rendered) { return; } firstCls = me._getFirstCls(); middleCls = me._middleCls; lastCls = me._getLastCls(); items = me.items.items; ln = items.length; visibleItems = []; for (i = 0; i < ln; i++) { item = items[i]; if (!item.hidden) { visibleItems.push(item); } } ln = visibleItems.length; //remove all existing classes from visible items for (i = 0; i < ln; i++) { visibleItems[i].removeCls([ firstCls, middleCls, lastCls ]); } // do not add any classes if there is only one item (no border removal needed) if (ln > 1) { //add firstCls to the first visible button visibleItems[0].addCls(firstCls); //add middleCls to all visible buttons in between for (i = 1; i < ln - 1; i++) { visibleItems[i].addCls(middleCls); } //add lastCls to the first visible button visibleItems[ln - 1].addCls(lastCls); } } }});