asarfuckery/electronasar/ptb/browser/api/touch-bar.js

311 lines
12 KiB
JavaScript

'use strict';
const { EventEmitter } = require('events');
let nextItemID = 1;
class TouchBar extends EventEmitter {
// Bind a touch bar to a window
static _setOnWindow(touchBar, window) {
if (window._touchBar != null) {
window._touchBar._removeFromWindow(window);
}
if (touchBar == null) {
window._setTouchBarItems([]);
return;
}
if (Array.isArray(touchBar)) {
touchBar = new TouchBar(touchBar);
}
touchBar._addToWindow(window);
}
constructor(options) {
super();
if (options == null) {
throw new Error('Must specify options object as first argument');
}
let { items, escapeItem } = options;
if (!Array.isArray(items)) {
items = [];
}
this.changeListener = (item) => {
this.emit('change', item.id, item.type);
};
this.windowListeners = {};
this.items = {};
this.ordereredItems = [];
this.escapeItem = escapeItem;
const registerItem = (item) => {
this.items[item.id] = item;
item.on('change', this.changeListener);
if (item.child instanceof TouchBar) {
item.child.ordereredItems.forEach(registerItem);
}
};
items.forEach((item) => {
if (!(item instanceof TouchBarItem)) {
throw new Error('Each item must be an instance of TouchBarItem');
}
this.ordereredItems.push(item);
registerItem(item);
});
}
set escapeItem(item) {
if (item != null && !(item instanceof TouchBarItem)) {
throw new Error('Escape item must be an instance of TouchBarItem');
}
if (this.escapeItem != null) {
this.escapeItem.removeListener('change', this.changeListener);
}
this._escapeItem = item;
if (this.escapeItem != null) {
this.escapeItem.on('change', this.changeListener);
}
this.emit('escape-item-change', item);
}
get escapeItem() {
return this._escapeItem;
}
_addToWindow(window) {
const { id } = window;
// Already added to window
if (this.windowListeners.hasOwnProperty(id))
return;
window._touchBar = this;
const changeListener = (itemID) => {
window._refreshTouchBarItem(itemID);
};
this.on('change', changeListener);
const escapeItemListener = (item) => {
window._setEscapeTouchBarItem(item != null ? item : {});
};
this.on('escape-item-change', escapeItemListener);
const interactionListener = (event, itemID, details) => {
let item = this.items[itemID];
if (item == null && this.escapeItem != null && this.escapeItem.id === itemID) {
item = this.escapeItem;
}
if (item != null && item.onInteraction != null) {
item.onInteraction(details);
}
};
window.on('-touch-bar-interaction', interactionListener);
const removeListeners = () => {
this.removeListener('change', changeListener);
this.removeListener('escape-item-change', escapeItemListener);
window.removeListener('-touch-bar-interaction', interactionListener);
window.removeListener('closed', removeListeners);
window._touchBar = null;
delete this.windowListeners[id];
const unregisterItems = (items) => {
for (const item of items) {
item.removeListener('change', this.changeListener);
if (item.child instanceof TouchBar) {
unregisterItems(item.child.ordereredItems);
}
}
};
unregisterItems(this.ordereredItems);
if (this.escapeItem) {
this.escapeItem.removeListener('change', this.changeListener);
}
};
window.once('closed', removeListeners);
this.windowListeners[id] = removeListeners;
window._setTouchBarItems(this.ordereredItems);
escapeItemListener(this.escapeItem);
}
_removeFromWindow(window) {
const removeListeners = this.windowListeners[window.id];
if (removeListeners != null)
removeListeners();
}
}
class TouchBarItem extends EventEmitter {
constructor() {
super();
this._addImmutableProperty('id', `${nextItemID++}`);
this._parents = [];
}
_addImmutableProperty(name, value) {
Object.defineProperty(this, name, {
get: function () {
return value;
},
set: function () {
throw new Error(`Cannot override property ${name}`);
},
enumerable: true,
configurable: false
});
}
_addLiveProperty(name, initialValue) {
const privateName = `_${name}`;
this[privateName] = initialValue;
Object.defineProperty(this, name, {
get: function () {
return this[privateName];
},
set: function (value) {
this[privateName] = value;
this.emit('change', this);
},
enumerable: true
});
}
_addParent(item) {
const existing = this._parents.some(test => test.id === item.id);
if (!existing) {
this._parents.push({
id: item.id,
type: item.type
});
}
}
}
TouchBar.TouchBarButton = class TouchBarButton extends TouchBarItem {
constructor(config) {
super();
if (config == null)
config = {};
this._addImmutableProperty('type', 'button');
const { click, icon, iconPosition, label, backgroundColor } = config;
this._addLiveProperty('label', label);
this._addLiveProperty('backgroundColor', backgroundColor);
this._addLiveProperty('icon', icon);
this._addLiveProperty('iconPosition', iconPosition);
if (typeof click === 'function') {
this._addImmutableProperty('onInteraction', () => {
config.click();
});
}
}
};
TouchBar.TouchBarColorPicker = class TouchBarColorPicker extends TouchBarItem {
constructor(config) {
super();
if (config == null)
config = {};
this._addImmutableProperty('type', 'colorpicker');
const { availableColors, change, selectedColor } = config;
this._addLiveProperty('availableColors', availableColors);
this._addLiveProperty('selectedColor', selectedColor);
if (typeof change === 'function') {
this._addImmutableProperty('onInteraction', (details) => {
this._selectedColor = details.color;
change(details.color);
});
}
}
};
TouchBar.TouchBarGroup = class TouchBarGroup extends TouchBarItem {
constructor(config) {
super();
if (config == null)
config = {};
this._addImmutableProperty('type', 'group');
const defaultChild = (config.items instanceof TouchBar) ? config.items : new TouchBar(config.items);
this._addLiveProperty('child', defaultChild);
this.child.ordereredItems.forEach((item) => item._addParent(this));
}
};
TouchBar.TouchBarLabel = class TouchBarLabel extends TouchBarItem {
constructor(config) {
super();
if (config == null)
config = {};
this._addImmutableProperty('type', 'label');
this._addLiveProperty('label', config.label);
this._addLiveProperty('textColor', config.textColor);
}
};
TouchBar.TouchBarPopover = class TouchBarPopover extends TouchBarItem {
constructor(config) {
super();
if (config == null)
config = {};
this._addImmutableProperty('type', 'popover');
this._addLiveProperty('label', config.label);
this._addLiveProperty('icon', config.icon);
this._addLiveProperty('showCloseButton', config.showCloseButton);
const defaultChild = (config.items instanceof TouchBar) ? config.items : new TouchBar(config.items);
this._addLiveProperty('child', defaultChild);
this.child.ordereredItems.forEach((item) => item._addParent(this));
}
};
TouchBar.TouchBarSlider = class TouchBarSlider extends TouchBarItem {
constructor(config) {
super();
if (config == null)
config = {};
this._addImmutableProperty('type', 'slider');
const { change, label, minValue, maxValue, value } = config;
this._addLiveProperty('label', label);
this._addLiveProperty('minValue', minValue);
this._addLiveProperty('maxValue', maxValue);
this._addLiveProperty('value', value);
if (typeof change === 'function') {
this._addImmutableProperty('onInteraction', (details) => {
this._value = details.value;
change(details.value);
});
}
}
};
TouchBar.TouchBarSpacer = class TouchBarSpacer extends TouchBarItem {
constructor(config) {
super();
if (config == null)
config = {};
this._addImmutableProperty('type', 'spacer');
this._addImmutableProperty('size', config.size);
}
};
TouchBar.TouchBarSegmentedControl = class TouchBarSegmentedControl extends TouchBarItem {
constructor(config) {
super();
if (config == null)
config = {};
const { segmentStyle, segments, selectedIndex, change, mode } = config;
this._addImmutableProperty('type', 'segmented_control');
this._addLiveProperty('segmentStyle', segmentStyle);
this._addLiveProperty('segments', segments || []);
this._addLiveProperty('selectedIndex', selectedIndex);
this._addLiveProperty('mode', mode);
if (typeof change === 'function') {
this._addImmutableProperty('onInteraction', (details) => {
this._selectedIndex = details.selectedIndex;
change(details.selectedIndex, details.isSelected);
});
}
}
};
TouchBar.TouchBarScrubber = class TouchBarScrubber extends TouchBarItem {
constructor(config) {
super();
if (config == null)
config = {};
const { items, selectedStyle, overlayStyle, showArrowButtons, continuous, mode } = config;
let { select, highlight } = config;
this._addImmutableProperty('type', 'scrubber');
this._addLiveProperty('items', items);
this._addLiveProperty('selectedStyle', selectedStyle || null);
this._addLiveProperty('overlayStyle', overlayStyle || null);
this._addLiveProperty('showArrowButtons', showArrowButtons || false);
this._addLiveProperty('mode', mode || 'free');
this._addLiveProperty('continuous', typeof continuous === 'undefined' ? true : continuous);
if (typeof select === 'function' || typeof highlight === 'function') {
if (select == null)
select = () => { };
if (highlight == null)
highlight = () => { };
this._addImmutableProperty('onInteraction', (details) => {
if (details.type === 'select' && typeof select === 'function') {
select(details.selectedIndex);
}
else if (details.type === 'highlight' && typeof highlight === 'function') {
highlight(details.highlightedIndex);
}
});
}
}
};
module.exports = TouchBar;