144 lines
3.3 KiB
Go
144 lines
3.3 KiB
Go
package contented
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import (
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"html"
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"net/http"
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"strconv"
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)
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func (this *Server) handleHomepage(w http.ResponseWriter) {
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extraText := ""
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if this.opts.MaxUploadBytes > 0 {
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extraText = " (max " + strconv.Itoa(int(this.opts.MaxUploadBytes/(1024*1024))) + " MiB)"
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}
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w.Header().Set(`Content-Type`, `text/html;charset=UTF-8`)
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w.WriteHeader(200)
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w.Write([]byte(`<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>` + html.EscapeString(this.opts.AppTitle) + `</title>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<style type="text/css">
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html, body {
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font-family: sans-serif;
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}
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#img {
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width:64px;
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height:64px;
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}
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a {
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color:blue;
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text-decoration:underline;
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cursor:pointer;
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}
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form {
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text-align: center;
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border: 8px dashed lightgrey;
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padding: 12px;
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margin: 12px;
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}
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form .if-supports-drag {
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display:none;
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}
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form .if-nodrag {
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display:block;
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}
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form.supports-drag .if-supports-drag {
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display:block;
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}
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form.supports-drag .if-nodrag {
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display:none;
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}
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form.is-dragging {
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background: lightblue;
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}
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</style>
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</head>
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<body>
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<form id="form" method="POST" action="/upload" enctype="multipart/form-data">
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<input type="hidden" name="MAX_FILE_SIZE" value="` + strconv.Itoa(int(this.opts.MaxUploadBytes)) + `" />
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<svg id="img" viewBox="0 0 24 24">
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<path fill="#000000" d="M5,20H19V18H5M19,9H15V3H9V9H5L12,16L19,9Z" />
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</svg>
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<div class="if-supports-drag">
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<label id="form-label">Drop file(s) to upload ` + extraText + `</label>
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<br>
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<br>
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<a id="classic-uploader">Classic uploader</a>
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</div>
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<div class="if-nodrag">
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<input id="form-upload" name="f" type="file" multiple>
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<input type="submit" value="Upload »">
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</div>
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</form>
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<script type="text/javascript">
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"use strict";
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var onLoad = function() {
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var form = document.getElementById("form");
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var input = document.getElementById("form-upload");
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var label = document.getElementById("form-label");
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var makeCaptionText = function( files ) {
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return files.length > 1 ? ( input.getAttribute( 'data-multiple-caption' ) || '' ).replace( '{count}', files.length ) : files[ 0 ].name;
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};
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var refreshCaption = function() {
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label.textContent = makeCaptionText( input.files );
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};
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input.addEventListener('change', refreshCaption);
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//
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document.getElementById("classic-uploader").addEventListener("click", function() {
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form.classList.remove("supports-drag");
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});
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var supportsDrag = ('ondrop' in window && 'FormData' in window && 'FileReader' in window);
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if (supportsDrag) {
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// Handle CSS
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form.classList.add('supports-drag');
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var handleDragState = function(event_name, classEnabled) {
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form.addEventListener(event_name, function(e) {
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e.preventDefault();
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e.stopPropagation();
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if (classEnabled) {
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form.classList.add( 'is-dragover' );
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} else {
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form.classList.remove( 'is-dragover' );
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}
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});
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}
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handleDragState('dragover', true);
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handleDragState('dragenter', true);
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handleDragState('dragleave', false);
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handleDragState('dragend', false);
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handleDragState('drop', false);
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// Handle uploads
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form.addEventListener('drop', function(e) {
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input.files = e.dataTransfer.files; // the files that were dropped
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refreshCaption();
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form.submit();
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});
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}
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};
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// Entry point
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onLoad();
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</script>
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</body>
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</html>
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`))
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}
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