Enhancing the functionality of the Audio/HTMLMediaElement JavaScript object

Question

Enhancing the functionality of the Audio/HTMLMediaElement JavaScript object

Is there a way to modify the Audio object in order to add a stop function? The usual method is as follows:

Audio.prototype.stop = function() {
    this.pause();
    this.currentTime = 0;
}

However, when trying to implement this within a Chrome Extension content script, the change does not carry over to the other context due to their separation.

I have experimented with using this unsafeWindow workaround to break out of the isolated environment without success. I also attempted to utilize Object.create and set the constructor property with no luck.

javascript google-chrome-extension html5-video html5-audio

Answer 1

Answer №1

The content script operates in a separate execution environment, however it interacts with the page's DOM. To run a script within the actual execution environment of the page, you can insert a <script> tag into the DOM:

var newScript = document.createElement("script");
newScript.innerText = "Audio.prototype.stop = function() { this.pause(); this.currentTime = 0; }";
document.documentElement.appendChild(newScript);

This code is designed to execute in both environments concurrently (or at least within the page's environment).

It's important to note that this method can only execute scripts during or after resource-load time, not immediately after the DOM is fully loaded, as it relies on the browser processing the newly added script resource. However, this limitation should not impact your current requirements.

Answer 2

The content script operates in a separate execution environment, however it interacts with the page's DOM. To run a script within the actual execution environment of the page, you can insert a <script> tag into the DOM:

var newScript = document.createElement("script");
newScript.innerText = "Audio.prototype.stop = function() { this.pause(); this.currentTime = 0; }";
document.documentElement.appendChild(newScript);

This code is designed to execute in both environments concurrently (or at least within the page's environment).

It's important to note that this method can only execute scripts during or after resource-load time, not immediately after the DOM is fully loaded, as it relies on the browser processing the newly added script resource. However, this limitation should not impact your current requirements.

Enhancing the functionality of the Audio/HTMLMediaElement JavaScript object

Answer №1

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