piskel/src/js/controller/settings/PngExportController.js

88 lines
3.2 KiB
JavaScript

(function () {
var ns = $.namespace("pskl.controller.settings");
var URL_MAX_LENGTH = 60;
ns.PngExportController = function (piskelController) {
this.piskelController = piskelController;
};
ns.PngExportController.prototype.init = function () {
this.previewContainerEl = document.querySelectorAll(".png-export-preview")[0];
document.querySelector(".png-download-button").addEventListener('click', this.onPngDownloadButtonClick_.bind(this));
document.querySelector(".zip-generate-button").addEventListener('click', this.onZipButtonClick_.bind(this));
this.updatePreview_(this.getFramesheetAsCanvas().toDataURL("image/png"));
};
ns.PngExportController.prototype.onPngDownloadButtonClick_ = function (evt) {
var fileName = this.getPiskelName_() + '.png';
pskl.utils.BlobUtils.canvasToBlob(this.getFramesheetAsCanvas(), function(blob) {
pskl.utils.FileUtils.downloadAsFile(blob, fileName);
});
};
ns.PngExportController.prototype.onZipButtonClick_ = function () {
var zip = new window.JSZip();
for (var i = 0; i < this.piskelController.getFrameCount(); i++) {
var frame = this.piskelController.getFrameAt(i);
var canvas = this.getFrameAsCanvas_(frame);
var filename = "sprite_" + (i+1) + ".png";
zip.file(filename, pskl.CanvasUtils.getBase64FromCanvas(canvas) + '\n', {base64: true});
}
var fileName = this.getPiskelName_() + '.zip';
var blob = zip.generate({type:"blob"});
pskl.utils.FileUtils.downloadAsFile(blob, fileName);
};
ns.PngExportController.prototype.getFrameAsCanvas_ = function (frame) {
var canvasRenderer = new pskl.rendering.CanvasRenderer(frame, 1);
canvasRenderer.drawTransparentAs(Constants.TRANSPARENT_COLOR);
return canvasRenderer.render();
};
ns.PngExportController.prototype.getPiskelName_ = function () {
return this.piskelController.getPiskel().getDescriptor().name;
};
ns.PngExportController.prototype.getFramesheetAsCanvas = function () {
var renderer = new pskl.rendering.PiskelRenderer(this.piskelController);
return renderer.renderAsCanvas();
};
ns.PngExportController.prototype.onImageUploadCompleted_ = function (imageUrl) {
this.updatePreview_(imageUrl);
this.updateStatus_(imageUrl);
this.previewContainerEl.classList.remove("preview-upload-ongoing");
};
ns.PngExportController.prototype.updateStatus_ = function (imageUrl, error) {
if (imageUrl) {
var linkTpl = "<a class='image-link' href='{{link}}' target='_blank'>{{shortLink}}</a>";
var linkHtml = pskl.utils.Template.replace(linkTpl, {
link : imageUrl,
shortLink : this.shorten_(imageUrl, URL_MAX_LENGTH, '...')
});
this.uploadStatusContainerEl.innerHTML = 'Your image is now available at : ' + linkHtml;
} else {
// FIXME : Should display error message instead
}
};
ns.PngExportController.prototype.updatePreview_ = function (src) {
this.previewContainerEl.innerHTML = "<img class='light-picker-background' style='max-width:240px;' src='"+src+"'/>";
};
ns.PngExportController.prototype.shorten_ = function (url, maxLength, suffix) {
if (url.length > maxLength) {
url = url.substring(0, maxLength);
url += suffix;
}
return url;
};
})();