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filePreview enhancements and ensure gallery view toggle displays

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This commit is contained in:
Ryan
2025-04-14 03:42:24 -04:00
committed by GitHub
parent a5fbcdef88
commit 66e0d7ecbe
3 changed files with 214 additions and 27 deletions
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219
js/filePreview.js
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@@ -121,12 +121,10 @@ export function previewFile(fileUrl, fileName) {
mediaElements.forEach(media => {
media.pause();
if (media.tagName.toLowerCase() !== 'video') {
try {
media.currentTime = 0;
} catch(e) { }
try { media.currentTime = 0; } catch (e) { }
}
});
modal.style.display = "none";
modal.remove();
}
document.getElementById("closeFileModal").addEventListener("click", closeModal);
@@ -143,24 +141,84 @@ export function previewFile(fileUrl, fileName) {
const extension = fileName.split('.').pop().toLowerCase();
const isImage = /\.(jpg|jpeg|png|gif|bmp|webp|svg|ico)$/i.test(fileName);
if (isImage) {
// Create the image element with default transform data.
const img = document.createElement("img");
img.src = fileUrl;
img.className = "image-modal-img";
img.style.maxWidth = "80vw";
img.style.maxHeight = "80vh";
container.appendChild(img);
img.style.transition = "transform 0.3s ease";
img.dataset.scale = 1;
img.dataset.rotate = 0;
img.style.position = 'relative';
img.style.zIndex = '1';
// Filter gallery images for navigation.
const images = fileData.filter(file => /\.(jpg|jpeg|png|gif|bmp|webp|svg|ico)$/i.test(file.name));
if (images.length > 1) {
modal.galleryImages = images;
modal.galleryCurrentIndex = images.findIndex(f => f.name === fileName);
// Create a flex wrapper to hold left panel, center image, and right panel.
const wrapper = document.createElement('div');
wrapper.className = 'image-wrapper';
wrapper.style.display = 'flex';
wrapper.style.alignItems = 'center';
wrapper.style.justifyContent = 'center';
wrapper.style.position = 'relative';
// --- Left Panel: Contains Zoom controls (top) and Prev button (bottom) ---
const leftPanel = document.createElement('div');
leftPanel.className = 'left-panel';
leftPanel.style.display = 'flex';
leftPanel.style.flexDirection = 'column';
leftPanel.style.justifyContent = 'space-between';
leftPanel.style.alignItems = 'center';
leftPanel.style.width = '60px';
leftPanel.style.height = '100%';
leftPanel.style.zIndex = '10';
// Top container for zoom buttons.
const leftTop = document.createElement('div');
leftTop.style.display = 'flex';
leftTop.style.flexDirection = 'column';
leftTop.style.gap = '4px';
// Zoom In button.
const zoomInBtn = document.createElement('button');
zoomInBtn.className = 'material-icons';
zoomInBtn.title = 'Zoom In';
zoomInBtn.style.background = 'transparent';
zoomInBtn.style.border = 'none';
zoomInBtn.style.cursor = 'pointer';
zoomInBtn.textContent = 'zoom_in';
// Zoom Out button.
const zoomOutBtn = document.createElement('button');
zoomOutBtn.className = 'material-icons';
zoomOutBtn.title = 'Zoom Out';
zoomOutBtn.style.background = 'transparent';
zoomOutBtn.style.border = 'none';
zoomOutBtn.style.cursor = 'pointer';
zoomOutBtn.textContent = 'zoom_out';
leftTop.appendChild(zoomInBtn);
leftTop.appendChild(zoomOutBtn);
leftPanel.appendChild(leftTop);
// Bottom container for prev button.
const leftBottom = document.createElement('div');
leftBottom.style.display = 'flex';
leftBottom.style.justifyContent = 'center';
leftBottom.style.alignItems = 'center';
leftBottom.style.width = '100%';
if (images.length > 1) {
const prevBtn = document.createElement("button");
prevBtn.textContent = "‹";
prevBtn.className = "gallery-nav-btn";
prevBtn.style.cssText = "position: absolute; top: 50%; left: 10px; transform: translateY(-50%); background: transparent; border: none; color: white; font-size: 48px; cursor: pointer;";
prevBtn.style.background = 'transparent';
prevBtn.style.border = 'none';
prevBtn.style.color = 'white';
prevBtn.style.fontSize = '48px';
prevBtn.style.cursor = 'pointer';
prevBtn.addEventListener("click", function (e) {
e.stopPropagation();
// Safety check:
if (!modal.galleryImages || modal.galleryImages.length === 0) return;
modal.galleryCurrentIndex = (modal.galleryCurrentIndex - 1 + modal.galleryImages.length) % modal.galleryImages.length;
let newFile = modal.galleryImages[modal.galleryCurrentIndex];
modal.querySelector("h4").textContent = newFile.name;
@@ -168,13 +226,82 @@ export function previewFile(fileUrl, fileName) {
? "uploads/"
: "uploads/" + window.currentFolder.split("/").map(encodeURIComponent).join("/") + "/")
+ encodeURIComponent(newFile.name) + "?t=" + new Date().getTime();
// Reset transforms.
img.dataset.scale = 1;
img.dataset.rotate = 0;
img.style.transform = 'scale(1) rotate(0deg)';
});
leftBottom.appendChild(prevBtn);
} else {
// Insert an empty placeholder for consistent layout.
leftBottom.innerHTML = ' ';
}
leftPanel.appendChild(leftBottom);
// --- Center Panel: Contains the image ---
const centerPanel = document.createElement('div');
centerPanel.className = 'center-image-container';
centerPanel.style.flexGrow = '1';
centerPanel.style.textAlign = 'center';
centerPanel.style.position = 'relative';
centerPanel.style.zIndex = '1';
centerPanel.appendChild(img);
// --- Right Panel: Contains Rotate controls (top) and Next button (bottom) ---
const rightPanel = document.createElement('div');
rightPanel.className = 'right-panel';
rightPanel.style.display = 'flex';
rightPanel.style.flexDirection = 'column';
rightPanel.style.justifyContent = 'space-between';
rightPanel.style.alignItems = 'center';
rightPanel.style.width = '60px';
rightPanel.style.height = '100%';
rightPanel.style.zIndex = '10';
// Top container for rotate buttons.
const rightTop = document.createElement('div');
rightTop.style.display = 'flex';
rightTop.style.flexDirection = 'column';
rightTop.style.gap = '4px';
// Rotate Left button.
const rotateLeftBtn = document.createElement('button');
rotateLeftBtn.className = 'material-icons';
rotateLeftBtn.title = 'Rotate Left';
rotateLeftBtn.style.background = 'transparent';
rotateLeftBtn.style.border = 'none';
rotateLeftBtn.style.cursor = 'pointer';
rotateLeftBtn.textContent = 'rotate_left';
// Rotate Right button.
const rotateRightBtn = document.createElement('button');
rotateRightBtn.className = 'material-icons';
rotateRightBtn.title = 'Rotate Right';
rotateRightBtn.style.background = 'transparent';
rotateRightBtn.style.border = 'none';
rotateRightBtn.style.cursor = 'pointer';
rotateRightBtn.textContent = 'rotate_right';
rightTop.appendChild(rotateLeftBtn);
rightTop.appendChild(rotateRightBtn);
rightPanel.appendChild(rightTop);
// Bottom container for next button.
const rightBottom = document.createElement('div');
rightBottom.style.display = 'flex';
rightBottom.style.justifyContent = 'center';
rightBottom.style.alignItems = 'center';
rightBottom.style.width = '100%';
if (images.length > 1) {
const nextBtn = document.createElement("button");
nextBtn.textContent = "›";
nextBtn.className = "gallery-nav-btn";
nextBtn.style.cssText = "position: absolute; top: 50%; right: 10px; transform: translateY(-50%); background: transparent; border: none; color: white; font-size: 48px; cursor: pointer;";
nextBtn.style.background = 'transparent';
nextBtn.style.border = 'none';
nextBtn.style.color = 'white';
nextBtn.style.fontSize = '48px';
nextBtn.style.cursor = 'pointer';
nextBtn.addEventListener("click", function (e) {
e.stopPropagation();
// Safety check:
if (!modal.galleryImages || modal.galleryImages.length === 0) return;
modal.galleryCurrentIndex = (modal.galleryCurrentIndex + 1) % modal.galleryImages.length;
let newFile = modal.galleryImages[modal.galleryCurrentIndex];
modal.querySelector("h4").textContent = newFile.name;
@@ -182,11 +309,63 @@ export function previewFile(fileUrl, fileName) {
? "uploads/"
: "uploads/" + window.currentFolder.split("/").map(encodeURIComponent).join("/") + "/")
+ encodeURIComponent(newFile.name) + "?t=" + new Date().getTime();
// Reset transforms.
img.dataset.scale = 1;
img.dataset.rotate = 0;
img.style.transform = 'scale(1) rotate(0deg)';
});
container.appendChild(prevBtn);
container.appendChild(nextBtn);
rightBottom.appendChild(nextBtn);
} else {
// Insert a placeholder so that center remains properly aligned.
rightBottom.innerHTML = ' ';
}
rightPanel.appendChild(rightBottom);
// Assemble panels into the wrapper.
wrapper.appendChild(leftPanel);
wrapper.appendChild(centerPanel);
wrapper.appendChild(rightPanel);
container.appendChild(wrapper);
// --- Set up zoom controls event listeners ---
zoomInBtn.addEventListener('click', function (e) {
e.stopPropagation();
let scale = parseFloat(img.dataset.scale) || 1;
scale += 0.1;
img.dataset.scale = scale;
img.style.transform = 'scale(' + scale + ') rotate(' + img.dataset.rotate + 'deg)';
});
zoomOutBtn.addEventListener('click', function (e) {
e.stopPropagation();
let scale = parseFloat(img.dataset.scale) || 1;
scale = Math.max(0.1, scale - 0.1);
img.dataset.scale = scale;
img.style.transform = 'scale(' + scale + ') rotate(' + img.dataset.rotate + 'deg)';
});
// Attach rotation control listeners (always present now).
rotateLeftBtn.addEventListener('click', function (e) {
e.stopPropagation();
let rotate = parseFloat(img.dataset.rotate) || 0;
rotate = (rotate - 90 + 360) % 360;
img.dataset.rotate = rotate;
img.style.transform = 'scale(' + img.dataset.scale + ') rotate(' + rotate + 'deg)';
});
rotateRightBtn.addEventListener('click', function (e) {
e.stopPropagation();
let rotate = parseFloat(img.dataset.rotate) || 0;
rotate = (rotate + 90) % 360;
img.dataset.rotate = rotate;
img.style.transform = 'scale(' + img.dataset.scale + ') rotate(' + rotate + 'deg)';
});
// Save gallery details if there is more than one image.
if (images.length > 1) {
modal.galleryImages = images;
modal.galleryCurrentIndex = images.findIndex(f => f.name === fileName);
}
} else {
// Handle non-image file previews.
if (extension === "pdf") {
const embed = document.createElement("embed");
const separator = fileUrl.indexOf('?') === -1 ? '?' : '&';
@@ -201,26 +380,21 @@ export function previewFile(fileUrl, fileName) {
video.src = fileUrl;
video.controls = true;
video.className = "image-modal-img";
const progressKey = 'videoProgress-' + fileUrl;
video.addEventListener("loadedmetadata", () => {
const savedTime = localStorage.getItem(progressKey);
if (savedTime) {
video.currentTime = parseFloat(savedTime);
}
});
video.addEventListener("timeupdate", () => {
localStorage.setItem(progressKey, video.currentTime);
});
video.addEventListener("ended", () => {
localStorage.removeItem(progressKey);
});
container.appendChild(video);
} else if (/\.(mp3|wav|m4a|ogg|flac|aac|wma|opus)$/i.test(fileName)) {
const audio = document.createElement("audio");
audio.src = fileUrl;
@@ -235,26 +409,19 @@ export function previewFile(fileUrl, fileName) {
modal.style.display = "flex";
}
// Added to preserve the original functionality.
// Preserve original functionality.
export function displayFilePreview(file, container) {
const actualFile = file.file || file;
// Validate that actualFile is indeed a File
if (!(actualFile instanceof File)) {
console.error("displayFilePreview called with an invalid file object");
return;
}
container.style.display = "inline-block";
// Clear the container safely without using innerHTML
while (container.firstChild) {
container.removeChild(container.firstChild);
}
if (/\.(jpg|jpeg|png|gif|bmp|webp|svg|ico)$/i.test(actualFile.name)) {
const img = document.createElement("img");
// Set the image source using a Blob URL (this is considered safe)
img.src = URL.createObjectURL(actualFile);
img.classList.add("file-preview-img");
container.appendChild(img);