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Fix for issue #170 "Edit Page always asks to save changes". #278

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Fix for issue #170 "Edit Page always asks to save changes". #278

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34 changes: 32 additions & 2 deletions src/org/wordpress/android/ui/posts/EditPostActivity.java
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Original file line number Diff line number Diff line change
Expand Up @@ -123,6 +123,8 @@
import java.util.Map;
import java.util.Random;
import java.util.Vector;
import java.util.zip.Checksum;
import java.util.zip.CRC32;

public class EditPostActivity extends SherlockFragmentActivity implements OnClickListener, OnTouchListener, TextWatcher,
WPEditText.OnSelectionChangedListener, OnFocusChangeListener, WPEditText.EditTextImeBackListener {
Expand Down Expand Up @@ -184,6 +186,7 @@ public class EditPostActivity extends SherlockFragmentActivity implements OnClic
private int mBlogID = -1;
private long mPostID = -1;
private long mCustomPubDate = 0;
private long mInitialPostCRC = 0;

private int mYear, mMonth, mDay, mHour, mMinute;
private int mStyleStart, mSelectionStart, mSelectionEnd;
Expand Down Expand Up @@ -499,6 +502,8 @@ else if (mQuickMediaType == Constants.QUICK_POST_VIDEO_LIBRARY)
mBquoteToggleButton.setOnClickListener(this);
mMoreButton.setOnClickListener(this);
softKeyboardHook();

mInitialPostCRC = computePostCRC();
}

private void prepareMediaGallery() {
Expand Down Expand Up @@ -968,9 +973,34 @@ public void onBackPressed() {
showCancelAlert(false);
}

private long computePostCRC() {
long crcValue = 0;
String textArray = "";
byte byteArray[] = null;
Checksum checksum = new CRC32();

Spinner postFormatSpinner = (Spinner) findViewById(R.id.postFormat);

textArray += mContentEditText.getText().toString();
textArray += mTitleEditText.getText().toString();
textArray += mPasswordEditText.getText().toString();
textArray += mLocationText.getText().toString();
textArray += mPubDateText.getText().toString();
textArray += mTagsEditText.getText().toString();
textArray += String.valueOf(mStatusSpinner.getSelectedItemPosition());
textArray += String.valueOf(postFormatSpinner.getSelectedItemPosition());

byteArray = textArray.getBytes();

checksum.update(byteArray,0,byteArray.length);
crcValue = checksum.getValue();

return crcValue;
}

private void showCancelAlert(final boolean isUpPress) {
// Empty post? Let's not prompt then.
if (mIsNew && mContentEditText.getText().toString().equals("") && mTitleEditText.getText().toString().equals("")) {
// Has the user not changed the post's content? Let's not prompt then.
if(mInitialPostCRC == computePostCRC()) {
finish();
return;
}
Expand Down