sibtracker/system/classes/swfupload/fileprogress.js
2019-05-18 13:46:03 +08:00

151 lines
4.9 KiB
JavaScript

/*
A simple class for displaying file information and progress
Note: This is a demonstration only and not part of SWFUpload.
Note: Some have had problems adapting this class in IE7. It may not be suitable for your application.
*/
// Constructor
// file is a SWFUpload file object
// targetID is the HTML element id attribute that the FileProgress HTML structure will be added to.
// Instantiating a new FileProgress object with an existing file will reuse/update the existing DOM elements
function FileProgress(file, targetID) {
this.fileProgressID = file.id;
this.opacity = 100;
this.height = 0;
this.fileProgressWrapper = document.getElementById(this.fileProgressID);
if (!this.fileProgressWrapper) {
this.fileProgressWrapper = document.createElement("div");
this.fileProgressWrapper.className = "progressWrapper";
this.fileProgressWrapper.id = this.fileProgressID;
this.fileProgressElement = document.createElement("div");
this.fileProgressElement.className = "progressContainer";
var progressCancel = document.createElement("a");
progressCancel.className = "progressCancel";
progressCancel.href = "#";
progressCancel.style.visibility = "hidden";
progressCancel.appendChild(document.createTextNode(" "));
var progressText = document.createElement("div");
progressText.className = "progressName";
progressText.appendChild(document.createTextNode(file.name));
var progressBar = document.createElement("div");
progressBar.className = "progressBarInProgress";
var progressStatus = document.createElement("div");
progressStatus.className = "progressBarStatus";
progressStatus.innerHTML = " ";
this.fileProgressElement.appendChild(progressCancel);
this.fileProgressElement.appendChild(progressText);
this.fileProgressElement.appendChild(progressStatus);
this.fileProgressElement.appendChild(progressBar);
this.fileProgressWrapper.appendChild(this.fileProgressElement);
document.getElementById(targetID).appendChild(this.fileProgressWrapper);
} else {
this.fileProgressElement = this.fileProgressWrapper.firstChild;
}
this.height = this.fileProgressWrapper.offsetHeight;
}
FileProgress.prototype.setProgress = function (percentage) {
this.fileProgressElement.className = "progressContainer green";
this.fileProgressElement.childNodes[3].className = "progressBarInProgress";
this.fileProgressElement.childNodes[3].style.width = percentage + "%";
};
FileProgress.prototype.setComplete = function () {
this.fileProgressElement.className = "progressContainer blue";
this.fileProgressElement.childNodes[3].className = "progressBarComplete";
this.fileProgressElement.childNodes[3].style.width = "";
var oSelf = this;
setTimeout(function () {
oSelf.disappear();
}, 10000);
};
FileProgress.prototype.setError = function () {
this.fileProgressElement.className = "progressContainer red";
this.fileProgressElement.childNodes[3].className = "progressBarError";
this.fileProgressElement.childNodes[3].style.width = "";
var oSelf = this;
setTimeout(function () {
oSelf.disappear();
}, 5000);
};
FileProgress.prototype.setCancelled = function () {
this.fileProgressElement.className = "progressContainer";
this.fileProgressElement.childNodes[3].className = "progressBarError";
this.fileProgressElement.childNodes[3].style.width = "";
var oSelf = this;
setTimeout(function () {
oSelf.disappear();
}, 2000);
};
FileProgress.prototype.setStatus = function (status) {
this.fileProgressElement.childNodes[2].innerHTML = status;
};
// Show/Hide the cancel button
FileProgress.prototype.toggleCancel = function (show, swfUploadInstance) {
this.fileProgressElement.childNodes[0].style.visibility = show ? "visible" : "hidden";
if (swfUploadInstance) {
var fileID = this.fileProgressID;
this.fileProgressElement.childNodes[0].onclick = function () {
swfUploadInstance.cancelUpload(fileID);
return false;
};
}
};
// Fades out and clips away the FileProgress box.
FileProgress.prototype.disappear = function () {
var reduceOpacityBy = 15;
var reduceHeightBy = 4;
var rate = 30; // 15 fps
if (this.opacity > 0) {
this.opacity -= reduceOpacityBy;
if (this.opacity < 0) {
this.opacity = 0;
}
if (this.fileProgressWrapper.filters) {
try {
this.fileProgressWrapper.filters.item("DXImageTransform.Microsoft.Alpha").opacity = this.opacity;
} catch (e) {
// If it is not set initially, the browser will throw an error. This will set it if it is not set yet.
this.fileProgressWrapper.style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=" + this.opacity + ")";
}
} else {
this.fileProgressWrapper.style.opacity = this.opacity / 100;
}
}
if (this.height > 0) {
this.height -= reduceHeightBy;
if (this.height < 0) {
this.height = 0;
}
this.fileProgressWrapper.style.height = this.height + "px";
}
if (this.height > 0 || this.opacity > 0) {
var oSelf = this;
setTimeout(function () {
oSelf.disappear();
}, rate);
} else {
this.fileProgressWrapper.style.display = "none";
}
};