/* * Copyright (C) 2016 Apple Inc. All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ class ButtonsContainer extends LayoutNode { constructor({ children = [], leftMargin = 16, rightMargin = 16, buttonMargin = 16, cssClassName = "" } = {}) { super(`
`); this.leftMargin = leftMargin; this.rightMargin = rightMargin; this.buttonMargin = buttonMargin; this.children = children; } // Public willRemoveChild(child) { super.willRemoveChild(child); // We reset properties that we may have overridden during layout to their default values. child.visible = true; child.x = 0; } didChangeChildren() { super.didChangeChildren(); this.layout(); } layout() { super.layout(); let x = this.leftMargin; let numberOfVisibleButtons = 0; this._children.forEach(button => { button.visible = button.enabled && !button.dropped; if (!button.visible) return; button.x = x; x += button.width + this.buttonMargin; numberOfVisibleButtons++; }); if (numberOfVisibleButtons) this.width = x - this.buttonMargin + this.rightMargin; else this.width = this.buttonMargin + this.rightMargin; } }