+++ /dev/null
-/**
- * Copyright (c) 2016 Luminarys <postmaster@gensok.io>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-document.addEventListener('DOMContentLoaded', function() {
- /**
- * Sets up the elements inside file upload rows.
- *
- * @param {File} file
- * @return {HTMLLIElement} row
- */
- function addRow(file) {
- var row = document.createElement('li');
-
- var name = document.createElement('span');
- name.textContent = file.name;
- name.className = 'file-name';
-
- var progressIndicator = document.createElement('span');
- progressIndicator.className = 'progress-percent';
- progressIndicator.textContent = '0%';
-
- var progressBar = document.createElement('progress');
- progressBar.className = 'file-progress';
- progressBar.setAttribute('max', '100');
- progressBar.setAttribute('value', '0');
-
- row.appendChild(name);
- row.appendChild(progressBar);
- row.appendChild(progressIndicator);
-
- document.getElementById('upload-filelist').appendChild(row);
- return row;
- }
-
- /**
- * Updates the page while the file is being uploaded.
- *
- * @param {ProgressEvent} evt
- */
- function handleUploadProgress(evt) {
- var xhr = evt.target;
- var bar = xhr.bar;
- var percentIndicator = xhr.percent;
-
- /* If we have amounts of work done/left that we can calculate with
- (which, unless we're uploading dynamically resizing data, is always), calculate the percentage. */
- if (evt.lengthComputable) {
- var progressPercent = Math.floor((evt.loaded / evt.total) * 100);
- bar.setAttribute('value', progressPercent);
- percentIndicator.textContent = progressPercent + '%';
- }
- }
-
- /**
- * Complete the uploading process by checking the response status and, if the
- * upload was successful, writing the URL(s) and creating the copy element(s)
- * for the files.
- *
- * @param {ProgressEvent} evt
- */
- function handleUploadComplete(evt) {
- var xhr = evt.target;
- var bar = xhr.bar;
- var row = xhr.row;
- var percentIndicator = xhr.percent;
-
- percentIndicator.style.visibility = 'hidden';
- bar.style.visibility = 'hidden';
- row.removeChild(bar);
- row.removeChild(percentIndicator);
- var respStatus = xhr.status;
-
- var url = document.createElement('span');
- url.className = 'file-url';
- row.appendChild(url);
-
- var link = document.createElement('a');
- if (respStatus === 200) {
- var response = JSON.parse(xhr.responseText);
- if (response.success) {
- link.textContent = response.files[0].url.replace(/.*?:\/\//g, '');
- link.href = response.files[0].url;
- url.appendChild(link);
- var copy = document.createElement('button');
- copy.className = 'upload-clipboard-btn';
- var glyph = document.createElement('img');
- glyph.src = 'img/glyphicons-512-copy.png';
- copy.appendChild(glyph);
- url.appendChild(copy);
- copy.addEventListener("click", function(event) {
- /* Why create an element? The text needs to be on screen to be
- selected and thus copied. The only text we have on-screen is the link
- without the http[s]:// part. So, this creates an element with the
- full link for a moment and then deletes it.
-
- See the "Complex Example: Copy to clipboard without displaying
- input" section at: https://stackoverflow.com/a/30810322 */
- var element = document.createElement('a');
- element.textContent = response.files[0].url;
- link.appendChild(element);
- var range = document.createRange();
- range.selectNode(element);
- window.getSelection().removeAllRanges();
- window.getSelection().addRange(range);
- document.execCommand("copy");
- link.removeChild(element);
- });
- } else {
- bar.innerHTML = 'Error: ' + response.description;
- }
- } else if (respStatus === 413) {
- link.textContent = 'File too big!';
- url.appendChild(link);
- } else {
- link.textContent = 'Server error!';
- url.appendChild(link);
- }
- }
-
- /**
- * Updates the page while the file is being uploaded.
- *
- * @param {File} file
- * @param {HTMLLIElement} row
- */
- function uploadFile(file, row) {
- var bar = row.querySelector('.file-progress');
- var percentIndicator = row.querySelector('.progress-percent');
- var xhr = new XMLHttpRequest();
- xhr.open('POST', 'upload.php');
-
- xhr['row'] = row;
- xhr['bar'] = bar;
- xhr['percent'] = percentIndicator;
- xhr.upload['bar'] = bar;
- xhr.upload['percent'] = percentIndicator;
-
- xhr.addEventListener('load', handleUploadComplete, false);
- xhr.upload.onprogress = handleUploadProgress;
-
- var form = new FormData();
- form.append('files[]', file);
- xhr.send(form);
- }
-
- /**
- * Prevents the browser for allowing the normal actions associated with an event.
- * This is used by event handlers to allow custom functionality without
- * having to worry about the other consequences of that action.
- *
- * @param {Event} evt
- */
- function stopDefaultEvent(evt) {
- evt.stopPropagation();
- evt.preventDefault();
- }
-
- /**
- * Adds 1 to the state and changes the text.
- *
- * @param {Object} state
- * @param {HTMLButtonElement} element
- * @param {DragEvent} evt
- */
- function handleDrag(state, element, evt) {
- stopDefaultEvent(evt);
- if (state.dragCount == 1) {
- element.textContent = 'Drop it here~';
- }
- state.dragCount += 1;
- }
-
- /**
- * Subtracts 1 from the state and changes the text back.
- *
- * @param {Object} state
- * @param {HTMLButtonElement} element
- * @param {DragEvent} evt
- */
- function handleDragAway(state, element, evt) {
- stopDefaultEvent(evt);
- state.dragCount -= 1;
- if (state.dragCount == 0) {
- element.textContent = 'Select or drop file(s)';
- }
- }
-
- /**
- * Prepares files for uploading after being added via drag-drop.
- *
- * @param {Object} state
- * @param {HTMLButtonElement} element
- * @param {DragEvent} evt
- */
- function handleDragDrop(state, element, evt) {
- stopDefaultEvent(evt);
- handleDragAway(state, element, evt);
- var len = evt.dataTransfer.files.length;
- for (var i = 0; i < len; i++) {
- var file = evt.dataTransfer.files[i];
- var row = addRow(file);
- uploadFile(file, row);
- }
- }
-
- /**
- * Prepares the files to be uploaded when they're added to the <input> element.
- *
- * @param {InputEvent} evt
- */
- function uploadFiles(evt) {
- var len = evt.target.files.length;
- // For each file, make a row, and upload the file.
- for (var i = 0; i < len; i++) {
- var file = evt.target.files[i];
- var row = addRow(file);
- uploadFile(file, row);
- }
- }
-
- /**
- * Opens up a "Select files.." dialog window to allow users to select files to upload.
- *
- * @param {HTMLInputElement} target
- * @param {InputEvent} evt
- */
- function selectFiles(target, evt) {
- stopDefaultEvent(evt);
- target.click();
- }
-
- /* Set-up the event handlers for the <button>, <input> and the window itself
- and also set the "js" class on selector "#upload-form", presumably to
- allow custom styles for clients running javascript. */
- var state = { dragCount: 0 };
- var uploadButton = document.getElementById('upload-btn');
- window.addEventListener('dragenter', handleDrag.bind(this, state, uploadButton), false);
- window.addEventListener('dragleave', handleDragAway.bind(this, state, uploadButton), false);
- window.addEventListener('drop', handleDragAway.bind(this, state, uploadButton), false);
- window.addEventListener('dragover', stopDefaultEvent, false);
-
- var uploadInput = document.getElementById('upload-input');
- uploadInput.addEventListener('change', uploadFiles);
- uploadButton.addEventListener('click', selectFiles.bind(this, uploadInput));
- uploadButton.addEventListener('drop', handleDragDrop.bind(this, state, uploadButton), false);
- document.getElementById('upload-form').classList.add('js');
-});
projects / uguu.git / blobdiff