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Disable the present button while setting up a presentation.
Users sometimes click on the button multiple times.
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1 changed files with 14 additions and 2 deletions
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@ -349,9 +349,21 @@ setViewportHeight();
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addEventListener('resize', setViewportHeight);
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addEventListener('orientationchange', setViewportHeight);
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getButtonElement('presentbutton').onclick = function(e) {
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getButtonElement('presentbutton').onclick = async function(e) {
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e.preventDefault();
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addLocalMedia();
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let button = this;
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if(!(button instanceof HTMLButtonElement))
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throw new Error('Unexpected type for this.');
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// there's a potential race condition here: the user might click the
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// button a second time before the stream is set up and the button hidden.
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button.disabled = true;
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try {
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let id = findUpMedia('local');
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if(!id)
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await addLocalMedia();
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} finally {
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button.disabled = false;
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}
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};
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getButtonElement('unpresentbutton').onclick = function(e) {
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