Swift - Implement a simple text editor program that includes a text input field (with several...

Swift -

Implement a simple text editor program that includes a text input field (with several lines), a text label, and two buttons, called "Open" and "Save".

When the button "Save" is touched, the app will save the contents of the text input field to a data file (sample.txt).

When the button "Open" is touched, the app will read the content from the data file, (sample.txt)) and feed the content into the text label.

Thank you.

Expert Solution

<table>
<tr><td>Text Input: </td></tr>
<tr>
<td colspan="3">
<textarea id="inputTextToSave" cols="80" rows="25"></textarea>
</td>
</tr>
<tr>
<td>Text Label:
<textarea id="inputTextToSave"></textarea>
</td>
</tr>
<tr>
<td>Filename to Save As:</td>
<td><input id="inputFileNameToSaveAs"></input></td>
<td><button onclick="saveTextAsFile()">Save</button></td>
</tr>
<tr>
<td>Select a File to Load:</td>
<td><input type="file" id="fileToLoad"></td>
<td><button onclick="loadFileAsText()">Open</button><td>
</tr>
</table>

function saveTextAsFile()
{
var textToSave = document.getElementById("inputTextToSave").value;
var textToSaveAsBlob = new Blob([textToSave], {type:"text/plain"});
var textToSaveAsURL = window.URL.createObjectURL(textToSaveAsBlob);
var fileNameToSaveAs = document.getElementById("inputFileNameToSaveAs").value;

var downloadLink = document.createElement("a");
downloadLink.download = fileNameToSaveAs;
downloadLink.innerHTML = "Download File";
downloadLink.href = textToSaveAsURL;
downloadLink.onclick = destroyClickedElement;
downloadLink.style.display = "none";
document.body.appendChild(downloadLink);

downloadLink.click();
}

function destroyClickedElement(event)
{
document.body.removeChild(event.target);
}

function loadFileAsText()
{
var fileToLoad = document.getElementById("fileToLoad").files[0];

var fileReader = new FileReader();
fileReader.onload = function(fileLoadedEvent)
{
var textFromFileLoaded = fileLoadedEvent.target.result;
document.getElementById("inputTextToSave").value = textFromFileLoaded;
};
fileReader.readAsText(fileToLoad, "UTF-8");
}

</script>

</body>
</html>

venereology answered 2 years ago

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