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PDF links on Android in Titanium
var wv = Ti.UI.createWebView();
var pdf = require('pdf');
wv.addEventListener('pdf', function (event) {
pdf(event.url, event.cookies, function (err) {
if (err) alert(err);
});
});
// Checks to see if a file exists
function exists (file) {
try {
if (file.exists()) {
return true;
}
} catch (e) {
console.log(e);
}
return false;
}
// Checks if a file is a pdf by reading it and checking magic word
function isPdf (file) {
try {
// read first 4 bytes and check if its equal to %PDF
var blob = file.read();
if (!blob) return false;
// sometimes its a blob, sometimes its text already.
if (!blob.slice) blob = blob.text;
if (!blob) return false;
console.log("first few characters of pdf file: " + blob.slice(0, 5));
if (blob.indexOf("%PDF") === 0) return true;
} catch (e) {
console.log(e);
}
return false;
}
// Downloads a pdf
function download (url, cookies, done) {
var base = Ti.Utils.md5HexDigest(url) + '.pdf';
var file = Ti.Filesystem.getFile(
Ti.Filesystem.applicationDataDirectory,
base
);
if (exists(file) && isPdf(file)) {
console.log("File already exists and is pdf, returning");
return done(null, file, base, url);
}
// Download pdf file
var client = Ti.Network.createHTTPClient();
client.onload = function (e) {
try {
// reopen the file, because otherwise the app will segfault, no really.
var base = Ti.Utils.md5HexDigest(url) + '.pdf';
var file = Ti.Filesystem.getFile(
Ti.Filesystem.applicationDataDirectory,
base
);
if (e.source.status != 200)
throw new Error("http status " + e.source.status);
file.write(e.source.responseData);
return done(null, file, base, url);
} catch (e) {
return done(e);
}
};
client.onerror = function (e) {
console.log("http error " + e.source.status);
return done(e);
};
client.setRequestHeader("Cookie", cookies);
client.open("GET", url);
client.send();
return client;
}
// copies srcFile to a temp dir / filename.pdf
function copyToTemp (srcFile, base, url) {
// create temp directory (with md5 hash as dirname) and put file in there.
// This is so that the name of the file (on the server) can be the same
// as the name of the file on the device tha we're about to write so the
// filename shows up properly in whatever reader the user is using.
// Otherwise it'd be some hex string (ie, the md5 hash as filename
var tempdir = Ti.Filesystem.getFile(Ti.Filesystem.tempDirectory, base);
tempdir.createDirectory();
var filename = url.split('/');
filename = filename[filename.length - 1];
var tempFile = Ti.Filesystem.getFile(Ti.Filesystem.tempDirectory, base, filename);
tempFile.write(srcFile.read());
return tempFile;
}
// launch intent to read pdf
function launch (file) {
console.log("launching pdf path: " + file.getNativePath());
var intent = Ti.Android.createIntent({
action: Ti.Android.ACTION_VIEW,
data: file.getNativePath(),
type: "application/pdf"
});
Ti.Android.currentActivity.startActivity(intent);
}
// do whole thing -- download url w/ cookies and launch pdf
function pdf (url, cookies, done) {
if (!Ti.Filesystem.isExternalStoragePresent()) {
// TODO: display error
return done(new Error("external"));
}
download(url, cookies, function (err, file, base, url) {
if (err) return done(err);
var tempFile = copyToTemp(file, base, url);
launch(tempFile);
done();
});
}
module.exports = pdf;
diff --git a/android/modules/ui/src/java/ti/modules/titanium/ui/widget/webview/TiWebViewClient.java b/android/modules/ui/src/java/ti/modules/titanium/ui/widget/webview/TiWebViewClient.java
index 99f8031..adb6bc9 100644
--- a/android/modules/ui/src/java/ti/modules/titanium/ui/widget/webview/TiWebViewClient.java
+++ b/android/modules/ui/src/java/ti/modules/titanium/ui/widget/webview/TiWebViewClient.java
@@ -22,6 +22,7 @@ import android.webkit.SslErrorHandler;
import android.webkit.URLUtil;
import android.webkit.WebView;
import android.webkit.WebViewClient;
+import android.webkit.CookieManager;
public class TiWebViewClient extends WebViewClient
{
@@ -117,7 +118,18 @@ public class TiWebViewClient extends WebViewClient
Intent geoviewer = Intent.createChooser(new Intent(Intent.ACTION_VIEW, Uri.parse(url)), "Choose Viewer");
webView.getProxy().getActivity().startActivity(geoviewer);
return true;
- } else {
+ }
+
+ else if (url.endsWith(".pdf")) {
+ KrollDict data = new KrollDict();
+ data.put("url", url);
+ data.put("cookies", CookieManager.getInstance().getCookie(url));
+
+ webView.getProxy().fireEvent("pdf", data);
+ return true;
+ }
+
+ else {
String extension = MimeTypeMap.getFileExtensionFromUrl(url);
String mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
if (mimeType != null) {
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