459 lines
15 KiB
TypeScript
459 lines
15 KiB
TypeScript
import { EventEmitter } from 'events';
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let nextItemID = 1;
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const hiddenProperties = Symbol('hidden touch bar props');
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const extendConstructHook = (target: any, hook: Function) => {
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const existingHook = target._hook;
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target._hook = function () {
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hook.call(this);
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if (existingHook) existingHook.call(this);
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};
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};
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const ImmutableProperty = <T extends TouchBarItem<any>>(def: (config: T extends TouchBarItem<infer C> ? C : never, setInternalProp: <K extends keyof T>(k: K, v: T[K]) => void) => any) => (target: T, propertyKey: keyof T) => {
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extendConstructHook(target as any, function (this: T) {
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(this as any)[hiddenProperties][propertyKey] = def((this as any)._config, (k, v) => {
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(this as any)[hiddenProperties][k] = v;
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});
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});
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Object.defineProperty(target, propertyKey, {
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get: function () {
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return (this as any)[hiddenProperties][propertyKey];
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},
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set: function () {
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throw new Error(`Cannot override property ${name}`);
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},
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enumerable: true,
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configurable: false
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});
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};
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const LiveProperty = <T extends TouchBarItem<any>>(def: (config: T extends TouchBarItem<infer C> ? C : never) => any, onMutate?: (self: T, newValue: any) => void) => (target: T, propertyKey: keyof T) => {
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extendConstructHook(target as any, function (this: T) {
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(this as any)[hiddenProperties][propertyKey] = def((this as any)._config);
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if (onMutate) onMutate((this as any), (this as any)[hiddenProperties][propertyKey]);
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});
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Object.defineProperty(target, propertyKey, {
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get: function () {
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return this[hiddenProperties][propertyKey];
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},
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set: function (value) {
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if (onMutate) onMutate((this as any), value);
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this[hiddenProperties][propertyKey] = value;
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this.emit('change', this);
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},
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enumerable: true
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});
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};
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abstract class TouchBarItem<ConfigType> extends EventEmitter {
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@ImmutableProperty(() => `${nextItemID++}`) id!: string;
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abstract type: string;
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abstract onInteraction: Function | null;
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child?: TouchBar;
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private _parents: { id: string; type: string }[] = [];
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private _config!: ConfigType;
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constructor (config: ConfigType) {
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super();
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this._config = this._config || config || {} as any;
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(this as any)[hiddenProperties] = {};
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const hook = (this as any)._hook;
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if (hook) hook.call(this);
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delete (this as any)._hook;
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}
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public _addParent (item: TouchBarItem<any>) {
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const existing = this._parents.some(test => test.id === item.id);
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if (!existing) {
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this._parents.push({
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id: item.id,
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type: item.type
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});
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}
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}
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public _removeParent (item: TouchBarItem<any>) {
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this._parents = this._parents.filter(test => test.id !== item.id);
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}
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}
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class TouchBarButton extends TouchBarItem<Electron.TouchBarButtonConstructorOptions> implements Electron.TouchBarButton {
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@ImmutableProperty(() => 'button')
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type!: string;
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@LiveProperty<TouchBarButton>(config => config.label)
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label!: string;
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@LiveProperty<TouchBarButton>(config => config.accessibilityLabel)
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accessibilityLabel!: string;
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@LiveProperty<TouchBarButton>(config => config.backgroundColor)
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backgroundColor!: string;
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@LiveProperty<TouchBarButton>(config => config.icon)
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icon!: Electron.NativeImage;
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@LiveProperty<TouchBarButton>(config => config.iconPosition)
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iconPosition!: Electron.TouchBarButton['iconPosition'];
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@LiveProperty<TouchBarButton>(config => typeof config.enabled !== 'boolean' ? true : config.enabled)
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enabled!: boolean;
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@ImmutableProperty<TouchBarButton>(({ click: onClick }) => typeof onClick === 'function' ? () => onClick() : null)
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onInteraction!: Function | null;
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}
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class TouchBarColorPicker extends TouchBarItem<Electron.TouchBarColorPickerConstructorOptions> implements Electron.TouchBarColorPicker {
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@ImmutableProperty(() => 'colorpicker')
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type!: string;
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@LiveProperty<TouchBarColorPicker>(config => config.availableColors)
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availableColors!: string[];
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@LiveProperty<TouchBarColorPicker>(config => config.selectedColor)
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selectedColor!: string;
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@ImmutableProperty<TouchBarColorPicker>(({ change: onChange }, setInternalProp) => typeof onChange === 'function' ? (details: { color: string }) => {
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setInternalProp('selectedColor', details.color);
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onChange(details.color);
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} : null)
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onInteraction!: Function | null;
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}
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class TouchBarGroup extends TouchBarItem<Electron.TouchBarGroupConstructorOptions> implements Electron.TouchBarGroup {
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@ImmutableProperty(() => 'group')
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type!: string;
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@LiveProperty<TouchBarGroup>(config => config.items instanceof TouchBar ? config.items : new TouchBar(config.items), (self, newChild: TouchBar) => {
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if (self.child) {
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for (const item of self.child.orderedItems) {
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item._removeParent(self);
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}
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}
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for (const item of newChild.orderedItems) {
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item._addParent(item);
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}
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})
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child!: TouchBar;
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onInteraction = null;
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}
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class TouchBarLabel extends TouchBarItem<Electron.TouchBarLabelConstructorOptions> implements Electron.TouchBarLabel {
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@ImmutableProperty(() => 'label')
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type!: string;
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@LiveProperty<TouchBarLabel>(config => config.label)
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label!: string;
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@LiveProperty<TouchBarLabel>(config => config.accessibilityLabel)
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accessibilityLabel!: string;
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@LiveProperty<TouchBarLabel>(config => config.textColor)
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textColor!: string;
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onInteraction = null;
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}
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class TouchBarPopover extends TouchBarItem<Electron.TouchBarPopoverConstructorOptions> implements Electron.TouchBarPopover {
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@ImmutableProperty(() => 'popover')
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type!: string;
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@LiveProperty<TouchBarPopover>(config => config.label)
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label!: string;
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@LiveProperty<TouchBarPopover>(config => config.icon)
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icon!: Electron.NativeImage;
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@LiveProperty<TouchBarPopover>(config => config.showCloseButton)
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showCloseButton!: boolean;
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@LiveProperty<TouchBarPopover>(config => config.items instanceof TouchBar ? config.items : new TouchBar(config.items), (self, newChild: TouchBar) => {
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if (self.child) {
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for (const item of self.child.orderedItems) {
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item._removeParent(self);
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}
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}
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for (const item of newChild.orderedItems) {
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item._addParent(item);
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}
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})
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child!: TouchBar;
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onInteraction = null;
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}
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class TouchBarSlider extends TouchBarItem<Electron.TouchBarSliderConstructorOptions> implements Electron.TouchBarSlider {
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@ImmutableProperty(() => 'slider')
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type!: string;
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@LiveProperty<TouchBarSlider>(config => config.label)
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label!: string;
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@LiveProperty<TouchBarSlider>(config => config.minValue)
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minValue!: number;
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@LiveProperty<TouchBarSlider>(config => config.maxValue)
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maxValue!: number;
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@LiveProperty<TouchBarSlider>(config => config.value)
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value!: number;
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@ImmutableProperty<TouchBarSlider>(({ change: onChange }, setInternalProp) => typeof onChange === 'function' ? (details: { value: number }) => {
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setInternalProp('value', details.value);
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onChange(details.value);
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} : null)
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onInteraction!: Function | null;
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}
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class TouchBarSpacer extends TouchBarItem<Electron.TouchBarSpacerConstructorOptions> implements Electron.TouchBarSpacer {
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@ImmutableProperty(() => 'spacer')
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type!: string;
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@ImmutableProperty<TouchBarSpacer>(config => config.size)
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size!: Electron.TouchBarSpacer['size'];
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onInteraction = null;
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}
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class TouchBarSegmentedControl extends TouchBarItem<Electron.TouchBarSegmentedControlConstructorOptions> implements Electron.TouchBarSegmentedControl {
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@ImmutableProperty(() => 'segmented_control')
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type!: string;
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@LiveProperty<TouchBarSegmentedControl>(config => config.segmentStyle)
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segmentStyle!: Electron.TouchBarSegmentedControl['segmentStyle'];
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@LiveProperty<TouchBarSegmentedControl>(config => config.segments || [])
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segments!: Electron.SegmentedControlSegment[];
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@LiveProperty<TouchBarSegmentedControl>(config => config.selectedIndex)
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selectedIndex!: number;
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@LiveProperty<TouchBarSegmentedControl>(config => config.mode)
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mode!: Electron.TouchBarSegmentedControl['mode'];
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@ImmutableProperty<TouchBarSegmentedControl>(({ change: onChange }, setInternalProp) => typeof onChange === 'function' ? (details: { selectedIndex: number, isSelected: boolean }) => {
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setInternalProp('selectedIndex', details.selectedIndex);
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onChange(details.selectedIndex, details.isSelected);
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} : null)
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onInteraction!: Function | null;
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}
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class TouchBarScrubber extends TouchBarItem<Electron.TouchBarScrubberConstructorOptions> implements Electron.TouchBarScrubber {
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@ImmutableProperty(() => 'scrubber')
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type!: string;
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@LiveProperty<TouchBarScrubber>(config => config.items)
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items!: Electron.ScrubberItem[];
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@LiveProperty<TouchBarScrubber>(config => config.selectedStyle || null)
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selectedStyle!: Electron.TouchBarScrubber['selectedStyle'];
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@LiveProperty<TouchBarScrubber>(config => config.overlayStyle || null)
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overlayStyle!: Electron.TouchBarScrubber['overlayStyle'];
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@LiveProperty<TouchBarScrubber>(config => config.showArrowButtons || false)
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showArrowButtons!: boolean;
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@LiveProperty<TouchBarScrubber>(config => config.mode || 'free')
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mode!: Electron.TouchBarScrubber['mode'];
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@LiveProperty<TouchBarScrubber>(config => typeof config.continuous === 'undefined' ? true : config.continuous)
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continuous!: boolean;
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@ImmutableProperty<TouchBarScrubber>(({ select: onSelect, highlight: onHighlight }) => typeof onSelect === 'function' || typeof onHighlight === 'function' ? (details: { type: 'select'; selectedIndex: number } | { type: 'highlight'; highlightedIndex: number }) => {
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if (details.type === 'select') {
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if (onSelect) onSelect(details.selectedIndex);
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} else {
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if (onHighlight) onHighlight(details.highlightedIndex);
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}
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} : null)
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onInteraction!: Function | null;
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}
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class TouchBarOtherItemsProxy extends TouchBarItem<null> implements Electron.TouchBarOtherItemsProxy {
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@ImmutableProperty(() => 'other_items_proxy') type!: string;
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onInteraction = null;
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}
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const escapeItemSymbol = Symbol('escape item');
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class TouchBar extends EventEmitter implements Electron.TouchBar {
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// Bind a touch bar to a window
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static _setOnWindow (touchBar: TouchBar | Electron.TouchBarConstructorOptions['items'], window: Electron.BrowserWindow) {
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if (window._touchBar != null) {
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window._touchBar._removeFromWindow(window);
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}
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if (!touchBar) {
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window._setTouchBarItems([]);
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return;
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}
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if (Array.isArray(touchBar)) {
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touchBar = new TouchBar({ items: touchBar });
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}
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touchBar._addToWindow(window);
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}
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private windowListeners: Record<number, Function> = {};
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private items: Record<string, TouchBarItem<any>> = {};
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orderedItems: TouchBarItem<any>[] = [];
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constructor (options: Electron.TouchBarConstructorOptions) {
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super();
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if (options == null) {
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throw new Error('Must specify options object as first argument');
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}
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let { items, escapeItem } = options;
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if (!Array.isArray(items)) {
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items = [];
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}
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this.windowListeners = {};
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this.items = {};
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this.escapeItem = (escapeItem as any) || null;
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const registerItem = (item: TouchBarItem<any>) => {
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this.items[item.id] = item;
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item.on('change', this.changeListener);
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if (item.child instanceof TouchBar) {
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item.child.orderedItems.forEach(registerItem);
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}
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};
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let hasOtherItemsProxy = false;
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const idSet = new Set();
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items.forEach((item) => {
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if (!(item instanceof TouchBarItem)) {
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throw new Error('Each item must be an instance of TouchBarItem');
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}
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if (item.type === 'other_items_proxy') {
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if (!hasOtherItemsProxy) {
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hasOtherItemsProxy = true;
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} else {
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throw new Error('Must only have one OtherItemsProxy per TouchBar');
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}
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}
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if (!idSet.has(item.id)) {
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idSet.add(item.id);
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} else {
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throw new Error('Cannot add a single instance of TouchBarItem multiple times in a TouchBar');
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}
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});
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// register in separate loop after all items are validated
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for (const item of (items as TouchBarItem<any>[])) {
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this.orderedItems.push(item);
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registerItem(item);
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}
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}
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private changeListener = (item: TouchBarItem<any>) => {
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this.emit('change', item.id, item.type);
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};
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private [escapeItemSymbol]: TouchBarItem<unknown> | null = null;
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set escapeItem (item: TouchBarItem<unknown> | null) {
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if (item != null && !(item instanceof TouchBarItem)) {
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throw new Error('Escape item must be an instance of TouchBarItem');
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}
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const escapeItem = this.escapeItem;
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if (escapeItem) {
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escapeItem.removeListener('change', this.changeListener);
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}
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this[escapeItemSymbol] = item;
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if (this.escapeItem != null) {
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this.escapeItem.on('change', this.changeListener);
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}
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this.emit('escape-item-change', item);
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}
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get escapeItem (): TouchBarItem<unknown> | null {
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return this[escapeItemSymbol];
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}
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_addToWindow (window: Electron.BrowserWindow) {
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const { id } = window;
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// Already added to window
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if (Object.prototype.hasOwnProperty.call(this.windowListeners, id)) return;
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window._touchBar = this;
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const changeListener = (itemID: string) => {
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window._refreshTouchBarItem(itemID);
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};
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this.on('change', changeListener);
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const escapeItemListener = (item: Electron.TouchBarItemType | null) => {
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window._setEscapeTouchBarItem(item != null ? item : {});
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};
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this.on('escape-item-change', escapeItemListener);
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const interactionListener = (_: any, itemID: string, details: any) => {
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let item = this.items[itemID];
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if (item == null && this.escapeItem != null && this.escapeItem.id === itemID) {
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item = this.escapeItem;
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}
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if (item != null && item.onInteraction != null) {
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item.onInteraction(details);
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}
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};
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window.on('-touch-bar-interaction', interactionListener);
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const removeListeners = () => {
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this.removeListener('change', changeListener);
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this.removeListener('escape-item-change', escapeItemListener);
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window.removeListener('-touch-bar-interaction', interactionListener);
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window.removeListener('closed', removeListeners);
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window._touchBar = null;
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delete this.windowListeners[id];
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const unregisterItems = (items: TouchBarItem<any>[]) => {
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for (const item of items) {
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item.removeListener('change', this.changeListener);
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if (item.child instanceof TouchBar) {
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unregisterItems(item.child.orderedItems);
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}
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}
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};
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unregisterItems(this.orderedItems);
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if (this.escapeItem) {
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this.escapeItem.removeListener('change', this.changeListener);
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}
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};
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window.once('closed', removeListeners);
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this.windowListeners[id] = removeListeners;
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window._setTouchBarItems(this.orderedItems);
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escapeItemListener(this.escapeItem);
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}
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_removeFromWindow (window: Electron.BrowserWindow) {
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const removeListeners = this.windowListeners[window.id];
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if (removeListeners != null) removeListeners();
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}
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static TouchBarButton = TouchBarButton;
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static TouchBarColorPicker = TouchBarColorPicker;
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static TouchBarGroup = TouchBarGroup;
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static TouchBarLabel = TouchBarLabel;
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static TouchBarPopover = TouchBarPopover;
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static TouchBarSlider = TouchBarSlider;
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static TouchBarSpacer = TouchBarSpacer;
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static TouchBarSegmentedControl = TouchBarSegmentedControl;
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static TouchBarScrubber = TouchBarScrubber;
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static TouchBarOtherItemsProxy = TouchBarOtherItemsProxy;
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}
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export default TouchBar;
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