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And support for slicing in readAsDataURL.

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This commit is contained in:
Braden Shepherdson 2013-01-04 15:00:55 -05:00
parent 552885dbd3
commit 4589bdd31f
1 changed files with 19 additions and 3 deletions
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22
framework/src/org/apache/cordova/FileUtils.java
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@ -125,7 +125,16 @@ public class FileUtils extends CordovaPlugin {
callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, s)); callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, s));
} }
else if (action.equals("readAsDataURL")) { else if (action.equals("readAsDataURL")) {
String s = this.readAsDataURL(args.getString(0)); int start = 0;
int end = Integer.MAX_VALUE;
if (args.length() >= 2) {
start = args.getInt(1);
}
if (args.length() >= 3) {
end = args.getInt(2);
}
String s = this.readAsDataURL(args.getString(0), start, end);
callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, s)); callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, s));
} }
else if (action.equals("write")) { else if (action.equals("write")) {
@ -972,12 +981,19 @@ public class FileUtils extends CordovaPlugin {
* @return Contents of file = data:<media type>;base64,<data> * @return Contents of file = data:<media type>;base64,<data>
* @throws FileNotFoundException, IOException * @throws FileNotFoundException, IOException
*/ */
public String readAsDataURL(String filename) throws FileNotFoundException, IOException { public String readAsDataURL(String filename, int start, int end) throws FileNotFoundException, IOException {
int diff = end - start;
byte[] bytes = new byte[1000]; byte[] bytes = new byte[1000];
BufferedInputStream bis = new BufferedInputStream(getPathFromUri(filename), 1024); BufferedInputStream bis = new BufferedInputStream(getPathFromUri(filename), 1024);
ByteArrayOutputStream bos = new ByteArrayOutputStream(); ByteArrayOutputStream bos = new ByteArrayOutputStream();
int numRead = 0; int numRead = 0;
while ((numRead = bis.read(bytes, 0, 1000)) >= 0) {
if (start > 0) {
bis.skip(start);
}
while (diff > 0 && (numRead = bis.read(bytes, 0, Math.min(1000, diff))) >= 0) {
diff -= numRead;
bos.write(bytes, 0, numRead); bos.write(bytes, 0, numRead);
} }