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[pve-manager.git] / www / manager6 / form / BandwidthSelector.js

Ext.define('PVE.form.SizeField', {
    extend: 'Ext.form.FieldContainer',
    alias: 'widget.pveSizeField',

    mixins: ['Proxmox.Mixin.CBind'],

    viewModel: {
	data: {
	    unit: 'MiB',
	    unitPostfix: '',
	},
	formulas: {
	    unitlabel: (get) => get('unit') + get('unitPostfix'),
	},
    },

    emptyText: '',

    layout: 'hbox',
    defaults: {
	hideLabel: true,
    },

    units: {
	'B': 1,
	'KiB': 1024,
	'MiB': 1024*1024,
	'GiB': 1024*1024*1024,
	'TiB': 1024*1024*1024*1024,
	'KB': 1000,
	'MB': 1000*1000,
	'GB': 1000*1000*1000,
	'TB': 1000*1000*1000*1000,
    },

    // display unit (TODO: make (optionally) selectable)
    unit: 'MiB',
    unitPostfix: '',

    // use this if the backend saves values in another unit tha bytes, e.g.,
    // for KiB set it to 'KiB'
    backendUnit: undefined,

    // allow setting 0 and using it as a submit value
    allowZero: false,

    emptyValue: null,

    items: [
	{
	    xtype: 'numberfield',
	    cbind: {
		name: '{name}',
		emptyText: '{emptyText}',
		allowZero: '{allowZero}',
		emptyValue: '{emptyValue}',
	    },
	    minValue: 0,
	    step: 1,
	    submitLocaleSeparator: false,
	    fieldStyle: 'text-align: right',
	    flex: 1,
	    enableKeyEvents: true,
	    setValue: function(v) {
		if (!this._transformed && v !== null) {
		    let fieldContainer = this.up('fieldcontainer');
		    let vm = fieldContainer.getViewModel();
		    let unit = vm.get('unit');

		    v /= fieldContainer.units[unit];
		    v *= fieldContainer.backendFactor;

		    this._transformed = true;
		}

		if (Number(v) === 0 && !this.allowZero) {
		    v = undefined;
		}

		return Ext.form.field.Text.prototype.setValue.call(this, v);
	    },
	    getSubmitValue: function() {
		let v = this.processRawValue(this.getRawValue());
		v = v.replace(this.decimalSeparator, '.');

		if (v === undefined || v === '') {
		    return this.emptyValue;
		}

		if (Number(v) === 0) {
		    return this.allowZero ? 0 : null;
		}

		let fieldContainer = this.up('fieldcontainer');
		let vm = fieldContainer.getViewModel();
		let unit = vm.get('unit');

		v = parseFloat(v) * fieldContainer.units[unit];
		v /= fieldContainer.backendFactor;

		return String(Math.floor(v));
	    },
	    listeners: {
		// our setValue gets only called if we have a value, avoid
		// transformation of the first user-entered value
		keydown: function() { this._transformed = true; },
	    },
	},
	{
	    xtype: 'displayfield',
	    name: 'unit',
	    submitValue: false,
	    padding: '0 0 0 10',
	    bind: {
		value: '{unitlabel}',
	    },
	    listeners: {
		change: (f, v) => {
		    f.originalValue = v;
		},
	    },
	    width: 40,
	},
    ],

    initComponent: function() {
	let me = this;

	me.unit = me.unit || 'MiB';
	if (!(me.unit in me.units)) {
	    throw "unknown unit: " + me.unit;
	}

	me.backendFactor = 1;
	if (me.backendUnit !== undefined) {
	    if (!(me.unit in me.units)) {
		throw "unknown backend unit: " + me.backendUnit;
	    }
	    me.backendFactor = me.units[me.backendUnit];
	}

	me.callParent(arguments);

	me.getViewModel().set('unit', me.unit);
	me.getViewModel().set('unitPostfix', me.unitPostfix);
    },
});

Ext.define('PVE.form.BandwidthField', {
    extend: 'PVE.form.SizeField',
    alias: 'widget.pveBandwidthField',

    unitPostfix: '/s',
});