photofloat/web/js/010-control.js
2011-05-07 18:27:30 -04:00

320 lines
12 KiB
JavaScript

$(document).ready(function() {
function cachePath(path) {
if (path == "")
return "root";
if (path[0] == '/')
path = path.substring(1);
path = path
.replace(/ /g, "_")
.replace(/\//g, "-")
.replace(/\(/g, "")
.replace(/\)/g, "")
.replace(/#/g, "")
.replace(/&/g, "")
.replace(/,/g, "")
.replace(/\[/g, "")
.replace(/\]/g, "")
.replace(/"/g, "")
.replace(/'/g, "")
.replace(/_-_/g, "-")
.toLowerCase();
while (path.indexOf("--") != -1)
path = path.replace(/--/g, "-");
while (path.indexOf("__") != -1)
path = path.replace(/__/g, "_");
return path;
}
function imagePath(image, path, size, square) {
var suffix;
if (square)
suffix = size.toString() + "s";
else
suffix = size.toString();
return "cache/" + cachePath(path + "/" + image + "_" + suffix + ".jpg");
}
function escapeId(id) {
return id.replace(/\./g, "\\.").replace(/,/g, "\\,");
}
function loadAlbum() {
if (current_album_cache in album_cache) {
albumLoaded(album_cache[current_album_cache]);
return;
}
$("#loading").show();
$.ajax({
type: "GET",
url: "cache/" + current_album_cache + ".json",
error: die,
success: albumLoaded
});
}
function albumLoaded(album) {
$("#loading").hide();
album_cache[cachePath(album.path)] = album;
current_album = album;
if (current_photo_cache != null)
showPhoto();
if (cachePath(album.path) == current_album_cache)
showAlbum(true);
setTitle();
}
function trimExtension(title) {
var index = title.lastIndexOf(".");
if (index != -1)
return title.substring(0, index)
return title;
}
function setTitle() {
var title = "";
var components;
if (current_album.path.length == 0)
components = [document.title];
else {
components = current_album.path.split("/");
components.unshift(document.title);
}
var last = "";
for (var i = 0; i < components.length; ++i) {
if (i)
last += "/" + components[i];
if (i < components.length - 1 || current_photo_cache != null)
title += "<a href=\"#" + (i == 0 ? "" : cachePath(last.substring(1))) + "\">";
title += components[i];
if (i < components.length - 1 || current_photo_cache != null) {
title += "</a>";
title += " &raquo; ";
}
}
if (current_photo_cache != null)
title += trimExtension(current_photo.name);
$("#title").html(title);
}
function showAlbum(populate) {
if (current_photo_cache == null && previous_photo_cache == null)
$("html, body").stop().animate({ scrollTop: 0 }, "slow");
if (populate) {
var photos = "";
for (var i = 0; i < current_album.photos.length; ++i)
photos += "<a href=\"#" + current_album_cache + "/" + cachePath(current_album.photos[i].name) + "\"><img title=\"" + trimExtension(current_album.photos[i].name) + "\" alt=\"" + trimExtension(current_album.photos[i].name) + "\" id=\"thumb-" + cachePath(current_album.photos[i].name) + "\" src=\"" + imagePath(current_album.photos[i].name, current_album.path, 150, true) + "\" height=\"150\" width=\"150\"></a>";
$("#thumbs").html(photos);
var subalbums = "";
var thumbFinderList = new Array();
for (var i = current_album.albums.length - 1; i >= 0; --i) {
var path = cachePath(current_album.path + "/" + current_album.albums[i].path);
var id = "album-" + path;
subalbums += "<a href=\"#" + path + "\"><div title=\"" + current_album.albums[i].date + "\" id=\"" + id + "\" class=\"album-button\">" + current_album.albums[i].path + "</div></a>";
thumbFinderList.push({ path: path, id: escapeId(id) });
}
$("#subalbums").html(subalbums);
for (var i = 0; i < thumbFinderList.length; ++i)
(function(thumb) {
albumThumbFinder(thumb.path, function(photo, album) {
$("#" + thumb.id).css("background-image", "url(" + imagePath(photo.name, album.path, 150, true) + ")");
});
})(thumbFinderList[i]);
}
if (current_photo_cache == null) {
$("#album-view").removeClass("photo-view-container");
$("#subalbums").show();
$("#photo-view").hide();
}
setTimeout(scrollToThumb, 1);
}
function getDecimal(fraction) {
if (fraction[0] < fraction[1])
return fraction[0] + "/" + fraction[1];
return (fraction[0] / fraction[1]).toString();
}
function showPhoto() {
currentPhoto();
if (current_photo == null) {
$(document.body).html("Wrong picture.");
return;
}
var maxSize = 800;
var width = current_photo.size[0];
var height = current_photo.size[1];
if (width > height) {
height = height / width * maxSize;
width = maxSize;
} else {
width = width / height * maxSize;
height = maxSize;
}
$("#photo")
.attr("width", width).attr("height", height)
.attr("src", imagePath(current_photo.name, current_album.path, maxSize, false))
.attr("alt", current_photo.name)
.attr("title", current_photo.date)
.load(function() { $(this).css("width", "auto").css("height", "100%"); });
var previousPhoto = current_album.photos[
(current_photo_index - 1 < 0) ? (current_album.photos.length - 1) : (current_photo_index - 1)
];
var nextPhoto = current_album.photos[
(current_photo_index + 1 >= current_album.photos.length) ? 0 : (current_photo_index + 1)
];
$.preloadImages(imagePath(nextPhoto.name, current_album.path, maxSize, false), imagePath(previousPhoto.name, current_album.path, maxSize, false));
var nextLink = "#" + current_album_cache + "/" + cachePath(nextPhoto.name);
$("#next-photo").attr("href", nextLink);
$("#next").attr("href", nextLink);
$("#back").attr("href", "#" + current_album_cache + "/" + cachePath(previousPhoto.name));
$("#original-link").attr("target", "_blank").attr("href", "albums/" + current_album.path + "/" + current_photo.name);
var text = "<table>";
if (current_photo.make != undefined) text += "<tr><td>Camera Maker</td><td>" + current_photo.make + "</td></tr>";
if (current_photo.model != undefined) text += "<tr><td>Camera Model</td><td>" + current_photo.model + "</td></tr>";
if (current_photo.date != undefined) text += "<tr><td>Time Taken</td><td>" + current_photo.date + "</td></tr>";
if (current_photo.size != undefined) text += "<tr><td>Resolution</td><td>" + current_photo.size[0] + " x " + current_photo.size[1] + "</td></tr>";
if (current_photo.aperture != undefined) text += "<tr><td>Aperture</td><td> f/" + getDecimal(current_photo.aperture) + "</td></tr>";
if (current_photo.focalLength != undefined) text += "<tr><td>Focal Length</td><td>" + getDecimal(current_photo.focalLength) + " mm</td></tr>";
if (current_photo.iso != undefined) text += "<tr><td>ISO</td><td>" + current_photo.iso + "</td></tr>";
if (current_photo.exposureTime != undefined) text += "<tr><td>Exposure Time</td><td>" + getDecimal(current_photo.exposureTime) + " sec</td></tr>";
if (current_photo.exposureProgram != undefined) text += "<tr><td>Exposure Program</td><td>" + current_photo.exposureProgram + "</td></tr>";
if (current_photo.exposureCompensation != undefined) text += "<tr><td>Exposure Compensation</td><td>" + getDecimal(current_photo.exposureCompensation) + "</td></tr>";
if (current_photo.spectralSensitivity != undefined) text += "<tr><td>Spectral Sensitivity</td><td>" + current_photo.spectralSensitivity + "</td></tr>";
if (current_photo.flash != undefined) text += "<tr><td>Flash</td><td>" + current_photo.flash + "</td></tr>";
if (current_photo.orientation != undefined) text += "<tr><td>Orientation</td><td>" + current_photo.orientation + "</td></tr>";
text += "</table>";
$("#metadata").html(text);
$("#album-view").addClass("photo-view-container");
$("#subalbums").hide();
$("#photo-view").show();
}
function scrollToThumb() {
var photo = current_photo_cache
if (photo == null) {
photo = previous_photo_cache;
if (photo == null)
return;
}
var thumb = $("#thumb-" + escapeId(photo));
if (!thumb.length)
return;
if (current_photo_cache != null) {
var scroller = $("#album-view");
scroller.stop().animate({ scrollLeft: thumb.position().left + scroller.scrollLeft() - scroller.width() / 2 + thumb.width() / 2 }, "slow");
} else
$("html, body").stop().animate({ scrollTop: thumb.offset().top - $(window).height() / 2 + thumb.height() }, "slow");
}
function currentPhoto() {
for (current_photo_index = 0; current_photo_index < current_album.photos.length; ++current_photo_index) {
if (cachePath(current_album.photos[current_photo_index].name) == current_photo_cache)
break;
}
if (current_photo_index >= current_album.photos.length) {
current_photo = null;
current_photo_index = -1;
return;
}
current_photo = current_album.photos[current_photo_index];
}
function albumForThumbIteration(album, callback) {
album_cache[cachePath(album.path)] = album;
var index = Math.floor(Math.random() * (album.photos.length + album.albums.length));
if (index >= album.photos.length) {
index -= album.photos.length;
fetchAlbumForThumb(cachePath(album.path + "/" + album.albums[index].path), function(fetchedAlbum) {
albumForThumbIteration(fetchedAlbum, callback);
});
} else
callback(album.photos[index], album);
}
function fetchAlbumForThumb(album, callback) {
if (album in album_cache) {
callback(album_cache[album]);
return;
}
$.ajax({
type: "GET",
url: "cache/" + album + ".json",
error: die,
success: callback
});
}
function albumThumbFinder(album, callback) {
fetchAlbumForThumb(album, function(fetchedAlbum) { albumForThumbIteration(fetchedAlbum, callback); });
}
function die() {
$("#album-view").hide();
$("#photo-view").hide();
$("#title").hide();
$("#error").fadeIn(5000);
}
var current_album_cache = null;
var current_photo_cache = null;
var previous_photo_cache = null;
var current_album = null;
var current_photo = null;
var current_photo_index = -1;
var album_cache = new Array();
$(window).hashchange(function() {
var new_album_cache = location.hash.substring(1);
var index = new_album_cache.lastIndexOf("/");
if (index != -1 && index != new_album_cache.length - 1) {
previous_photo_cache = current_photo_cache;
current_photo_cache = new_album_cache.substring(index + 1);
new_album_cache = new_album_cache.substring(0, index);
} else {
previous_photo_cache = current_photo_cache;
current_photo_cache = null;
}
if (!new_album_cache.length)
new_album_cache = cachePath("root");
if (new_album_cache != current_album_cache) {
current_album_cache = new_album_cache;
previous_photo_cache = null;
loadAlbum();
} else if (current_photo_cache != null) {
showPhoto();
showAlbum(false);
setTitle();
} else {
showAlbum(false);
setTitle();
}
});
$(window).hashchange();
$(document).keydown(function(e){
if (current_photo_cache == null)
return true;
if (e.keyCode == 39) {
window.location.href = $("#next").attr("href");
return false;
} else if (e.keyCode == 37) {
window.location.href = $("#back").attr("href");
return false;
}
return true;
});
$("#photo-box").mouseenter(function() {
$("#photo-links").stop().fadeTo("slow", 0.50).css("display", "inline");
});
$("#photo-box").mouseleave(function() {
$("#photo-links").stop().fadeOut("slow");
});
$("#metadata-link").click(function() {
if (!$("#metadata").is(":visible"))
$("#metadata").stop()
.css("height", 0)
.css("padding-top", 0)
.css("padding-bottom", 0)
.show()
.animate({ height: 16.3 * 11, paddingTop: 3, paddingBottom: 3 }, "slow", function() {
$("#metadata-link").text($("#metadata-link").text().replace("show", "hide"));
});
else
$("#metadata").stop().animate({ height: 0, paddingTop: 0, paddingBottom: 0 }, "slow", function() {
$(this).hide();
$("#metadata-link").text($("#metadata-link").text().replace("hide", "show"));
});
});
});