package com.zzhoujay.richeditorfunctionbar;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AlertDialog;
import android.support.v7.widget.AppCompatImageButton;
import android.support.v7.widget.AppCompatSpinner;
import android.util.AttributeSet;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.HorizontalScrollView;
import com.zzhoujay.richeditor.RichEditor;
import com.zzhoujay.richeditor.Style;
import com.zzhoujay.richeditor.StyleType;
import com.zzhoujay.richeditor.callback.CursorChangeListener;
import com.zzhoujay.richeditor.callback.CursorProvider;
import com.zzhoujay.richeditor.ext.StyleTypeStateSpec;
import java.util.HashSet;
/**
* Created by zhou on 2016/11/29.
* 富文本编辑器功能栏
*/
public class RichEditorFunctionBar extends HorizontalScrollView implements CursorChangeListener {
private RichEditor richEditor;
private CursorProvider cursorProvider;
private SparseArray<StateListImageButton> stateListImageButtonSparseArray;
private HashSet<Integer> typeSet;
private AppCompatSpinner head;
public RichEditorFunctionBar(Context context) {
super(context);
init(context);
}
public RichEditorFunctionBar(Context context, AttributeSet attrs) {
super(context, attrs);
init(context);
}
public RichEditorFunctionBar(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context);
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public RichEditorFunctionBar(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
init(context);
}
public void setRichEditor(RichEditor richEditor) {
this.richEditor = richEditor;
}
public void setCursorProvider(CursorProvider cursorProvider) {
this.cursorProvider = cursorProvider;
}
private void init(Context context) {
setScrollBarStyle(SCROLLBARS_INSIDE_INSET);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
setScrollBarSize(getScrollBarSize() / 2);
}
@SuppressLint("InflateParams") View view = LayoutInflater.from(context).inflate(R.layout.layout_function_bar, null);
LayoutParams params = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT);
addView(view, params);
initView();
initButton(context);
}
private void initView() {
head = (AppCompatSpinner) findViewById(R.id.spinner);
head.setAdapter(new SpinnerAdapter());
head.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
if (position == 0) {
richEditor.endStyle(StyleType.HEAD);
} else {
richEditor.startStyle(Style.get(StyleType.HEAD), position);
}
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
StateListImageButton bold = (StateListImageButton) findViewById(R.id.btn_bold);
StateListImageButton italic = (StateListImageButton) findViewById(R.id.btn_italic);
StateListImageButton code = (StateListImageButton) findViewById(R.id.btn_code);
StateListImageButton underline = (StateListImageButton) findViewById(R.id.btn_underline);
StateListImageButton delete = (StateListImageButton) findViewById(R.id.btn_delete);
StateListImageButton quote = (StateListImageButton) findViewById(R.id.btn_quote);
AppCompatImageButton link = (AppCompatImageButton) findViewById(R.id.btn_link);
link.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
String src = null;
final int start = cursorProvider.getCursorStart();
final int end = cursorProvider.getCursorEnd();
if (start < end) {
src = richEditor.subSequence(start, end).toString();
}
createLinkInsertDialog(v.getContext(), new LinkInsertCallback() {
@Override
public void call(String text, String link) {
richEditor.replace(text, start, end);
richEditor.startStyleWithRange(Style.get(StyleType.LINK), start, start + text.length(), link);
}
}, src).show();
}
});
stateListImageButtonSparseArray = new SparseArray<>();
typeSet = new HashSet<>();
register(StyleType.BOLD, bold);
register(StyleType.ITALIC, italic);
register(StyleType.DELETE, delete);
register(StyleType.UNDER_LINE, underline);
register(StyleType.QUOTE, quote);
register(StyleType.CODE, code);
}
private void register(int type, StateListImageButton button) {
stateListImageButtonSparseArray.append(type, button);
typeSet.add(type);
}
private void initButton(Context context) {
Drawable normal = ContextCompat.getDrawable(context, R.drawable.bg_normal_shape);
Drawable select = ContextCompat.getDrawable(context, R.drawable.bg_select_shape);
Drawable highlight = ContextCompat.getDrawable(context, R.drawable.bg_highlight_shap);
for (int type : typeSet) {
final StateListImageButton stateListImageButton = stateListImageButtonSparseArray.get(type);
stateListImageButton.addState(StyleTypeStateSpec.StyleTypeState.STATE_NONE, normal);
stateListImageButton.addState(StyleTypeStateSpec.StyleTypeState.STATE_EXIST, select);
stateListImageButton.addState(StyleTypeStateSpec.StyleTypeState.STATE_ACTIVE, highlight);
stateListImageButton.setOnClickListener(new StateListImageButtonOnClickListener(type));
}
}
@Override
public void cursorChange(int newPosition) {
int[] typeStates = richEditor.getStyleTypeState();
resetButtonState(StyleTypeStateSpec.StyleTypeState.STATE_NONE);
if (typeStates.length > 0) {
for (int typeState : typeStates) {
int type = StyleTypeStateSpec.getStyleType(typeState);
int state = StyleTypeStateSpec.getState(typeState);
if (type == StyleType.HEAD) {
int arg1 = StyleTypeStateSpec.getArgs1(typeState);
head.setSelection(arg1);
} else {
StateListImageButton stateListImageButton = stateListImageButtonSparseArray.get(type);
if (stateListImageButton != null) {
stateListImageButton.setState(state);
}
}
}
}
}
private void resetButtonState(int state) {
for (int type : typeSet) {
stateListImageButtonSparseArray.get(type).setState(state);
}
head.setSelection(0);
}
private class StateListImageButtonOnClickListener implements OnClickListener {
private int type;
StateListImageButtonOnClickListener(int type) {
this.type = type;
}
@Override
public void onClick(View v) {
StateListImageButton stateListImageButton = ((StateListImageButton) v);
int state = stateListImageButton.getState();
if (state == StyleTypeStateSpec.StyleTypeState.STATE_NONE) {
stateListImageButton.setState(richEditor.startStyle(type));
} else if (state == StyleTypeStateSpec.StyleTypeState.STATE_ACTIVE) {
stateListImageButton.setState(richEditor.endStyle(type));
} else if (state == StyleTypeStateSpec.StyleTypeState.STATE_EXIST) {
stateListImageButton.setState(richEditor.endStyle(type));
}
}
}
private interface LinkInsertCallback {
void call(String text, String link);
}
private AlertDialog createLinkInsertDialog(Context context, final LinkInsertCallback callback, String src) {
AlertDialog.Builder builder = new AlertDialog.Builder(context);
View view = LayoutInflater.from(context).inflate(R.layout.layout_link_insert, null);
final EditText text = (EditText) view.findViewById(R.id.dialog_edit_1);
final EditText link = (EditText) view.findViewById(R.id.dialog_edit_2);
if (src != null) {
text.setText(src);
}
builder.setTitle("Insert Link").setIcon(R.drawable.ic_link).setView(view)
.setPositiveButton("insert", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String t = text.getText().toString();
String l = link.getText().toString();
if (callback != null) {
callback.call(t, l);
}
}
}).setNegativeButton("cancel", null);
return builder.create();
}
}
