134 lines
4.2 KiB
TypeScript
134 lines
4.2 KiB
TypeScript
window["require_setup"](module);
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import {KeyEvent as NKeyEvent} from "teaclient_ppt";
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namespace _ppt {
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let key_listener: ((_: ppt.KeyEvent) => any)[] = [];
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let native_ppt;
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function listener_key(type: ppt.EventType, nevent: NKeyEvent) {
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if(nevent.key_code === 'VoidSymbol' || nevent.key_code === 'error')
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nevent.key_code = undefined; /* trigger event for state update */
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let event: ppt.KeyEvent = {
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type: type,
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key: nevent.key_code,
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key_code: nevent.key_code,
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key_ctrl: nevent.key_ctrl,
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key_shift: nevent.key_shift,
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key_alt: nevent.key_alt,
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key_windows: nevent.key_windows
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} as any;
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//console.debug("Trigger key event %o", key_event);
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for (const listener of key_listener)
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listener(event);
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}
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function native_keyhook(event: NKeyEvent) {
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//console.log("Native event!: %o", event);
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if(event.type == 0)
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listener_key(ppt.EventType.KEY_PRESS, event);
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else if(event.type == 1)
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listener_key(ppt.EventType.KEY_RELEASE, event);
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else if(event.type == 2)
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listener_key(ppt.EventType.KEY_TYPED, event);
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}
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export async function initialize() : Promise<void> {
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native_ppt = require("teaclient_ppt");
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register_key_listener(listener_hook);
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native_ppt.RegisterCallback(native_keyhook);
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}
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export function finalize() {
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unregister_key_listener(listener_hook);
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native_ppt.UnregisterCallback(native_keyhook);
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}
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export function register_key_listener(listener: (_: ppt.KeyEvent) => any) {
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key_listener.push(listener);
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}
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export function unregister_key_listener(listener: (_: ppt.KeyEvent) => any) {
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key_listener.remove(listener);
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}
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interface CurrentState {
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event: ppt.KeyEvent;
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code: string;
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special: { [key:number]:boolean };
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}
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let current_state: CurrentState = {
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special: []
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} as any;
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let key_hooks: ppt.KeyHook[] = [];
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let key_hooks_active: ppt.KeyHook[] = [];
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function listener_hook(event: ppt.KeyEvent) {
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if(event.type == ppt.EventType.KEY_TYPED)
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return;
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let old_hooks = [...key_hooks_active];
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let new_hooks = [];
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current_state.special[ppt.SpecialKey.ALT] = event.key_alt;
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current_state.special[ppt.SpecialKey.CTRL] = event.key_ctrl;
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current_state.special[ppt.SpecialKey.SHIFT] = event.key_shift;
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current_state.special[ppt.SpecialKey.WINDOWS] = event.key_windows;
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current_state.code = undefined;
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current_state.event = undefined;
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if(event.type == ppt.EventType.KEY_PRESS) {
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current_state.event = event;
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current_state.code = event.key_code;
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for(const hook of key_hooks) {
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if(hook.key_code != event.key_code) continue;
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if(hook.key_alt != event.key_alt) continue;
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if(hook.key_ctrl != event.key_ctrl) continue;
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if(hook.key_shift != event.key_shift) continue;
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if(hook.key_windows != event.key_windows) continue;
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new_hooks.push(hook);
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if(!old_hooks.remove(hook) && hook.callback_press) {
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hook.callback_press();
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console.debug("Trigger key press for %o!", hook);
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}
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}
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}
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//We have a new situation
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for(const hook of old_hooks)
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if(hook.callback_release) {
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hook.callback_release();
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console.debug("Trigger key release for %o!", hook);
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}
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key_hooks_active = new_hooks;
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}
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export function register_key_hook(hook: ppt.KeyHook) {
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key_hooks.push(hook);
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}
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export function unregister_key_hook(hook: ppt.KeyHook) {
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key_hooks.remove(hook);
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key_hooks_active.remove(hook);
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}
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export function key_pressed(code: string | ppt.SpecialKey) : boolean {
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if(typeof(code) === 'string')
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return current_state.code == code;
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return current_state.special[code];
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}
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}
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Object.assign(window["ppt"] || (window["ppt"] = {}), _ppt);
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console.dir(_ppt); |