Created
January 13, 2022 11:06
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simulate KeyboardEvent
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>KeyboardEvent</title> | |
| <meta charset="UTF-8" /> | |
| <script> | |
| document.addEventListener("keydown", function (evt) { | |
| if (evt.keyCode === 65 && evt.shiftKey) { | |
| alert("SHIFT + A pressed"); | |
| } | |
| if (evt.keyCode === 75 && evt.ctrlKey) { | |
| alert("CTRL + K pressed") | |
| } | |
| }); | |
| function ctrl_k_hack() { | |
| Podium = {}; | |
| Podium.keydown = function (k) { | |
| const oEvent = document.createEvent("KeyboardEvent"); | |
| // Chromium Hack | |
| Object.defineProperty(oEvent, "keyCode", { | |
| get: function () { | |
| return this.keyCodeVal; | |
| } | |
| }); | |
| Object.defineProperty(oEvent, "which", { | |
| get: function () { | |
| return this.keyCodeVal; | |
| } | |
| }); | |
| if (oEvent.initKeyboardEvent) { | |
| oEvent.initKeyboardEvent( | |
| "keydown", | |
| true, | |
| true, | |
| document.defaultView, | |
| false, | |
| false, | |
| true, | |
| false, | |
| k, | |
| k | |
| ); | |
| } else { | |
| oEvent.initKeyEvent( | |
| "keydown", | |
| true, | |
| true, | |
| document.defaultView, | |
| false, | |
| false, | |
| true, | |
| false, | |
| k, | |
| 0 | |
| ); | |
| } | |
| oEvent.keyCodeVal = k; | |
| if (oEvent.keyCode !== k) { | |
| alert( | |
| "keyCode mismatch " + oEvent.keyCode + "(" + oEvent.which + ")" | |
| ); | |
| } | |
| document.dispatchEvent(oEvent); | |
| }; | |
| Podium.keydown(75); | |
| } | |
| function shift_a_good() { | |
| const evt = new KeyboardEvent("keydown", { | |
| shiftKey: true, | |
| key: "A", | |
| keyCode: 65 | |
| }); | |
| document.dispatchEvent(evt); | |
| } | |
| function ctrl_k_good() { | |
| const evt = new KeyboardEvent("keydown", { | |
| ctrlKey: true, | |
| key: "K", | |
| keyCode: 75 | |
| }); | |
| document.dispatchEvent(evt); | |
| } | |
| </script> | |
| </head> | |
| <body> | |
| <p> | |
| <button onclick="shift_a_good()">simulate good shift + a</button> | |
| <button onclick="ctrl_k_good()">simulate good ctrl + k</button> | |
| <button onclick="ctrl_k_hack()">simulate hack ctrl + k</button> | |
| </p> | |
| </body> | |
| </html> |
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