| /* |
| * Copyright (C) 2011 Google 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. |
| */ |
| |
| /** |
| * @unrestricted |
| */ |
| UI.SoftContextMenu = class { |
| /** |
| * @param {!Array.<!InspectorFrontendHostAPI.ContextMenuDescriptor>} items |
| * @param {function(string)} itemSelectedCallback |
| * @param {!UI.SoftContextMenu=} parentMenu |
| */ |
| constructor(items, itemSelectedCallback, parentMenu) { |
| this._items = items; |
| this._itemSelectedCallback = itemSelectedCallback; |
| this._parentMenu = parentMenu; |
| } |
| |
| /** |
| * @param {!Document} document |
| * @param {!AnchorBox} anchorBox |
| */ |
| show(document, anchorBox) { |
| if (!this._items.length) |
| return; |
| |
| this._document = document; |
| |
| this._glassPane = new UI.GlassPane(); |
| this._glassPane.setPointerEventsBehavior( |
| this._parentMenu ? UI.GlassPane.PointerEventsBehavior.PierceGlassPane : |
| UI.GlassPane.PointerEventsBehavior.BlockedByGlassPane); |
| this._glassPane.registerRequiredCSS('ui/softContextMenu.css'); |
| this._glassPane.setContentAnchorBox(anchorBox); |
| this._glassPane.setSizeBehavior(UI.GlassPane.SizeBehavior.MeasureContent); |
| this._glassPane.setMarginBehavior(UI.GlassPane.MarginBehavior.NoMargin); |
| this._glassPane.setAnchorBehavior( |
| this._parentMenu ? UI.GlassPane.AnchorBehavior.PreferRight : UI.GlassPane.AnchorBehavior.PreferBottom); |
| |
| this._contextMenuElement = this._glassPane.contentElement.createChild('div', 'soft-context-menu'); |
| this._contextMenuElement.tabIndex = 0; |
| this._contextMenuElement.addEventListener('mouseup', e => e.consume(), false); |
| this._contextMenuElement.addEventListener('keydown', this._menuKeyDown.bind(this), false); |
| |
| for (let i = 0; i < this._items.length; ++i) |
| this._contextMenuElement.appendChild(this._createMenuItem(this._items[i])); |
| |
| this._glassPane.show(document); |
| this._focusRestorer = new UI.ElementFocusRestorer(this._contextMenuElement); |
| |
| if (!this._parentMenu) { |
| this._onBodyMouseDown = event => { |
| this.discard(); |
| event.consume(true); |
| }; |
| this._document.body.addEventListener('mousedown', this._onBodyMouseDown, false); |
| } |
| } |
| |
| discard() { |
| if (this._subMenu) |
| this._subMenu.discard(); |
| if (this._focusRestorer) |
| this._focusRestorer.restore(); |
| if (this._glassPane) { |
| this._glassPane.hide(); |
| delete this._glassPane; |
| if (this._onBodyMouseDown) { |
| this._document.body.removeEventListener('mousedown', this._onBodyMouseDown, false); |
| delete this._onBodyMouseDown; |
| } |
| } |
| if (this._parentMenu) |
| delete this._parentMenu._subMenu; |
| } |
| |
| _createMenuItem(item) { |
| if (item.type === 'separator') |
| return this._createSeparator(); |
| |
| if (item.type === 'subMenu') |
| return this._createSubMenu(item); |
| |
| const menuItemElement = createElementWithClass('div', 'soft-context-menu-item'); |
| const checkMarkElement = UI.Icon.create('smallicon-checkmark', 'checkmark'); |
| menuItemElement.appendChild(checkMarkElement); |
| if (!item.checked) |
| checkMarkElement.style.opacity = '0'; |
| |
| if (item.element) { |
| const wrapper = menuItemElement.createChild('div', 'soft-context-menu-custom-item'); |
| wrapper.appendChild(item.element); |
| menuItemElement._isCustom = true; |
| return menuItemElement; |
| } |
| |
| if (!item.enabled) |
| menuItemElement.classList.add('soft-context-menu-disabled'); |
| menuItemElement.createTextChild(item.label); |
| menuItemElement.createChild('span', 'soft-context-menu-shortcut').textContent = item.shortcut; |
| |
| menuItemElement.addEventListener('mousedown', this._menuItemMouseDown.bind(this), false); |
| menuItemElement.addEventListener('mouseup', this._menuItemMouseUp.bind(this), false); |
| |
| // Manually manage hover highlight since :hover does not work in case of click-and-hold menu invocation. |
| menuItemElement.addEventListener('mouseover', this._menuItemMouseOver.bind(this), false); |
| menuItemElement.addEventListener('mouseleave', this._menuItemMouseLeave.bind(this), false); |
| |
| menuItemElement._actionId = item.id; |
| return menuItemElement; |
| } |
| |
| _createSubMenu(item) { |
| const menuItemElement = createElementWithClass('div', 'soft-context-menu-item'); |
| menuItemElement._subItems = item.subItems; |
| |
| // Occupy the same space on the left in all items. |
| const checkMarkElement = UI.Icon.create('smallicon-checkmark', 'soft-context-menu-item-checkmark'); |
| checkMarkElement.classList.add('checkmark'); |
| menuItemElement.appendChild(checkMarkElement); |
| checkMarkElement.style.opacity = '0'; |
| |
| menuItemElement.createTextChild(item.label); |
| |
| const subMenuArrowElement = menuItemElement.createChild('span', 'soft-context-menu-item-submenu-arrow'); |
| subMenuArrowElement.textContent = '\u25B6'; // BLACK RIGHT-POINTING TRIANGLE |
| |
| menuItemElement.addEventListener('mousedown', this._menuItemMouseDown.bind(this), false); |
| menuItemElement.addEventListener('mouseup', this._menuItemMouseUp.bind(this), false); |
| |
| // Manually manage hover highlight since :hover does not work in case of click-and-hold menu invocation. |
| menuItemElement.addEventListener('mouseover', this._menuItemMouseOver.bind(this), false); |
| menuItemElement.addEventListener('mouseleave', this._menuItemMouseLeave.bind(this), false); |
| |
| return menuItemElement; |
| } |
| |
| _createSeparator() { |
| const separatorElement = createElementWithClass('div', 'soft-context-menu-separator'); |
| separatorElement._isSeparator = true; |
| separatorElement.createChild('div', 'separator-line'); |
| return separatorElement; |
| } |
| |
| _menuItemMouseDown(event) { |
| // Do not let separator's mouse down hit menu's handler - we need to receive mouse up! |
| event.consume(true); |
| } |
| |
| _menuItemMouseUp(event) { |
| this._triggerAction(event.target, event); |
| event.consume(); |
| } |
| |
| /** |
| * @return {!UI.SoftContextMenu} |
| */ |
| _root() { |
| let root = this; |
| while (root._parentMenu) |
| root = root._parentMenu; |
| return root; |
| } |
| |
| _triggerAction(menuItemElement, event) { |
| if (!menuItemElement._subItems) { |
| this._root().discard(); |
| event.consume(true); |
| if (typeof menuItemElement._actionId !== 'undefined') { |
| this._itemSelectedCallback(menuItemElement._actionId); |
| delete menuItemElement._actionId; |
| } |
| return; |
| } |
| |
| this._showSubMenu(menuItemElement); |
| event.consume(); |
| } |
| |
| _showSubMenu(menuItemElement) { |
| if (menuItemElement._subMenuTimer) { |
| clearTimeout(menuItemElement._subMenuTimer); |
| delete menuItemElement._subMenuTimer; |
| } |
| if (this._subMenu) |
| return; |
| |
| this._subMenu = new UI.SoftContextMenu(menuItemElement._subItems, this._itemSelectedCallback, this); |
| const anchorBox = menuItemElement.boxInWindow(); |
| // Adjust for padding. |
| anchorBox.y -= 5; |
| anchorBox.x += 3; |
| anchorBox.width -= 6; |
| anchorBox.height += 10; |
| this._subMenu.show(this._document, anchorBox); |
| } |
| |
| _menuItemMouseOver(event) { |
| this._highlightMenuItem(event.target, true); |
| } |
| |
| _menuItemMouseLeave(event) { |
| if (!this._subMenu || !event.relatedTarget) { |
| this._highlightMenuItem(null, true); |
| return; |
| } |
| |
| const relatedTarget = event.relatedTarget; |
| if (relatedTarget === this._contextMenuElement) |
| this._highlightMenuItem(null, true); |
| } |
| |
| /** |
| * @param {?Element} menuItemElement |
| * @param {boolean} scheduleSubMenu |
| */ |
| _highlightMenuItem(menuItemElement, scheduleSubMenu) { |
| if (this._highlightedMenuItemElement === menuItemElement) |
| return; |
| |
| if (this._subMenu) |
| this._subMenu.discard(); |
| if (this._highlightedMenuItemElement) { |
| this._highlightedMenuItemElement.classList.remove('force-white-icons'); |
| this._highlightedMenuItemElement.classList.remove('soft-context-menu-item-mouse-over'); |
| if (this._highlightedMenuItemElement._subItems && this._highlightedMenuItemElement._subMenuTimer) { |
| clearTimeout(this._highlightedMenuItemElement._subMenuTimer); |
| delete this._highlightedMenuItemElement._subMenuTimer; |
| } |
| } |
| this._highlightedMenuItemElement = menuItemElement; |
| if (this._highlightedMenuItemElement) { |
| this._highlightedMenuItemElement.classList.add('force-white-icons'); |
| this._highlightedMenuItemElement.classList.add('soft-context-menu-item-mouse-over'); |
| this._contextMenuElement.focus(); |
| if (scheduleSubMenu && this._highlightedMenuItemElement._subItems && |
| !this._highlightedMenuItemElement._subMenuTimer) { |
| this._highlightedMenuItemElement._subMenuTimer = |
| setTimeout(this._showSubMenu.bind(this, this._highlightedMenuItemElement), 150); |
| } |
| } |
| } |
| |
| _highlightPrevious() { |
| let menuItemElement = this._highlightedMenuItemElement ? this._highlightedMenuItemElement.previousSibling : |
| this._contextMenuElement.lastChild; |
| while (menuItemElement && (menuItemElement._isSeparator || menuItemElement._isCustom)) |
| menuItemElement = menuItemElement.previousSibling; |
| if (menuItemElement) |
| this._highlightMenuItem(menuItemElement, false); |
| } |
| |
| _highlightNext() { |
| let menuItemElement = this._highlightedMenuItemElement ? this._highlightedMenuItemElement.nextSibling : |
| this._contextMenuElement.firstChild; |
| while (menuItemElement && (menuItemElement._isSeparator || menuItemElement._isCustom)) |
| menuItemElement = menuItemElement.nextSibling; |
| if (menuItemElement) |
| this._highlightMenuItem(menuItemElement, false); |
| } |
| |
| _menuKeyDown(event) { |
| switch (event.key) { |
| case 'ArrowUp': |
| this._highlightPrevious(); |
| break; |
| case 'ArrowDown': |
| this._highlightNext(); |
| break; |
| case 'ArrowLeft': |
| if (this._parentMenu) { |
| this._highlightMenuItem(null, false); |
| this.discard(); |
| } |
| break; |
| case 'ArrowRight': |
| if (!this._highlightedMenuItemElement) |
| break; |
| if (this._highlightedMenuItemElement._subItems) { |
| this._showSubMenu(this._highlightedMenuItemElement); |
| this._subMenu._highlightNext(); |
| } |
| break; |
| case 'Escape': |
| this.discard(); |
| break; |
| case 'Enter': |
| if (!isEnterKey(event)) |
| break; |
| // Fall through |
| case ' ': // Space |
| if (this._highlightedMenuItemElement) |
| this._triggerAction(this._highlightedMenuItemElement, event); |
| if (this._highlightedMenuItemElement._subItems) |
| this._subMenu._highlightNext(); |
| break; |
| } |
| event.consume(true); |
| } |
| }; |
