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emacs-application-framework/app/mindmap/jsmind.js

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/*
* Released under BSD License
* Copyright (c) 2014-2016 hizzgdev@163.com
*
* Project Home:
* https://github.com/hizzgdev/jsmind/
*/
;(function($w){
'use strict';
// set 'jsMind' as the library name.
// __name__ should be a const value, Never try to change it easily.
var __name__ = 'jsMind';
// library version
var __version__ = '0.4.6';
// author
var __author__ = 'hizzgdev@163.com';
// an noop function define
var _noop = function(){};
var logger = (typeof console === 'undefined')?{
log:_noop, debug:_noop, error:_noop, warn:_noop, info:_noop
}:console;
// check global variables
if(typeof module === 'undefined' || !module.exports){
if(typeof $w[__name__] != 'undefined'){
logger.log(__name__+' has been already exist.');
return;
}
}
// shortcut of methods in dom
var $d = $w.document;
var $g = function(id){return $d.getElementById(id);};
var $c = function(tag){return $d.createElement(tag);};
var $t = function(n,t){if(n.hasChildNodes()){n.firstChild.nodeValue = t;}else{n.appendChild($d.createTextNode(t));}};
var $h = function(n,t){n.innerHTML = t;};
// detect isElement
var $i = function(el){return !!el&&(typeof el==='object')&&(el.nodeType===1)&&(typeof el.style==='object')&&(typeof el.ownerDocument==='object');};
if(typeof String.prototype.startsWith != 'function'){String.prototype.startsWith=function(p){return this.slice(0,p.length)===p;};}
var DEFAULT_OPTIONS = {
container : '', // id of the container
editable : false, // you can change it in your options
theme : null,
mode :'full', // full or side
support_html : true,
view:{
hmargin:100,
vmargin:50,
line_width:2,
line_color:'#3598DB'
},
layout:{
hspace:50,
vspace:20,
pspace:13
},
default_event_handle:{
enable_mousedown_handle:true,
enable_click_handle:true,
enable_dblclick_handle:true
},
shortcut:{
enable:true,
handles:{
},
mapping:{
addchild : 45, // Insert
addbrother : 13, // Enter
editnode : 113,// F2
delnode : 46, // Delete
toggle : 32, // Space
left : 37, // Left
up : 38, // Up
right : 39, // Right
down : 40, // Down
}
},
};
// core object
var jm = function(options){
jm.current = this;
this.version = __version__;
var opts = {};
jm.util.json.merge(opts, DEFAULT_OPTIONS);
jm.util.json.merge(opts, options);
if(!opts.container){
logger.error('the options.container should not be null or empty.');
return;
}
this.options = opts;
this.inited = false;
this.mind = null;
this.event_handles = [];
this.init();
};
// ============= static object =============================================
jm.direction = {left:-1,center:0,right:1};
jm.event_type = {show:1,resize:2,edit:3,select:4};
jm.node = function(sId,iIndex,sTopic,oData,bIsRoot,oParent,eDirection,bExpanded){
if(!sId){logger.error('invalid nodeid');return;}
if(typeof iIndex != 'number'){logger.error('invalid node index');return;}
if(typeof bExpanded === 'undefined'){bExpanded = true;}
this.id = sId;
this.index = iIndex;
this.topic = sTopic;
this.data = oData || {};
this.isroot = bIsRoot;
this.parent = oParent;
this.direction = eDirection;
this.expanded = !!bExpanded;
this.children = [];
this._data = {};
};
jm.node.compare=function(node1,node2){
// '-1' is alwary the last
var r = 0;
var i1 = node1.index;
var i2 = node2.index;
if(i1>=0 && i2>=0){
r = i1-i2;
}else if(i1==-1 && i2==-1){
r = 0;
}else if(i1==-1){
r = 1;
}else if(i2==-1){
r = -1;
}else{
r = 0;
}
//logger.debug(i1+' <> '+i2+' = '+r);
return r;
};
jm.node.inherited=function(pnode,node){
if(!!pnode && !!node){
if(pnode.id === node.id){
return true;
}
if(pnode.isroot){
return true;
}
var pid = pnode.id;
var p = node;
while(!p.isroot){
p = p.parent;
if(p.id === pid){
return true;
}
}
}
return false;
};
jm.node.prototype = {
get_location:function(){
var vd = this._data.view;
return {
x:vd.abs_x,
y:vd.abs_y
};
},
get_size:function(){
var vd = this._data.view;
return {
w:vd.width,
h:vd.height
}
}
};
jm.mind = function(){
this.name = null;
this.author = null;
this.version = null;
this.root = null;
this.selected = null;
this.nodes = {};
};
jm.mind.prototype = {
get_node:function(nodeid){
if(nodeid in this.nodes){
return this.nodes[nodeid];
}else{
logger.warn('the node[id='+nodeid+'] can not be found');
return null;
}
},
set_root:function(nodeid, topic, data){
if(this.root == null){
this.root = new jm.node(nodeid, 0, topic, data, true);
this._put_node(this.root);
}else{
logger.error('root node is already exist');
}
},
add_node:function(parent_node, nodeid, topic, data, idx, direction, expanded){
if(!jm.util.is_node(parent_node)){
var the_parent_node = this.get_node(parent_node);
if(!the_parent_node){
logger.error('the parent_node[id='+parent_node+'] can not be found.');
return null;
}else{
return this.add_node(the_parent_node, nodeid, topic, data, idx, direction, expanded);
}
}
var nodeindex = idx || -1;
var node = null;
if(parent_node.isroot){
var d = jm.direction.right;
if(isNaN(direction)){
var children = parent_node.children;
var children_len = children.length;
var r = 0;
for(var i=0;i<children_len;i++){if(children[i].direction === jm.direction.left){r--;}else{r++;}}
d = (children_len > 1 && r > 0) ? jm.direction.left : jm.direction.right
}else{
d = (direction != jm.direction.left) ? jm.direction.right : jm.direction.left;
}
node = new jm.node(nodeid,nodeindex,topic,data,false,parent_node,d,expanded);
}else{
node = new jm.node(nodeid,nodeindex,topic,data,false,parent_node,parent_node.direction,expanded);
}
if(this._put_node(node)){
parent_node.children.push(node);
this._reindex(parent_node);
}else{
logger.error('fail, the nodeid \''+node.id+'\' has been already exist.');
node = null;
}
return node;
},
insert_node_before:function(node_before, nodeid, topic, data){
if(!jm.util.is_node(node_before)){
var the_node_before = this.get_node(node_before);
if(!the_node_before){
logger.error('the node_before[id='+node_before+'] can not be found.');
return null;
}else{
return this.insert_node_before(the_node_before, nodeid, topic, data);
}
}
var node_index = node_before.index-0.5;
return this.add_node(node_before.parent, nodeid, topic, data, node_index);
},
get_node_before:function(node){
if(!jm.util.is_node(node)){
var the_node = this.get_node(node);
if(!the_node){
logger.error('the node[id='+node+'] can not be found.');
return null;
}else{
return this.get_node_before(the_node);
}
}
if(node.isroot){return null;}
var idx = node.index - 2;
if(idx >= 0){
return node.parent.children[idx];
}else{
return null;
}
},
insert_node_after:function(node_after, nodeid, topic, data){
if(!jm.util.is_node(node_after)){
var the_node_after = this.get_node(node_before);
if(!the_node_after){
logger.error('the node_after[id='+node_after+'] can not be found.');
return null;
}else{
return this.insert_node_after(the_node_after, nodeid, topic, data);
}
}
var node_index = node_after.index + 0.5;
return this.add_node(node_after.parent, nodeid, topic, data, node_index);
},
get_node_after:function(node){
if(!jm.util.is_node(node)){
var the_node = this.get_node(node);
if(!the_node){
logger.error('the node[id='+node+'] can not be found.');
return null;
}else{
return this.get_node_after(the_node);
}
}
if(node.isroot){return null;}
var idx = node.index;
var brothers = node.parent.children;
if(brothers.length >= idx){
return node.parent.children[idx];
}else{
return null;
}
},
move_node:function(node, beforeid, parentid, direction){
if(!jm.util.is_node(node)){
var the_node = this.get_node(node);
if(!the_node){
logger.error('the node[id='+node+'] can not be found.');
return null;
}else{
return this.move_node(the_node, beforeid, parentid, direction);
}
}
if(!parentid){
parentid = node.parent.id;
}
return this._move_node(node, beforeid, parentid, direction);
},
_flow_node_direction:function(node,direction){
if(typeof direction === 'undefined'){
direction = node.direction;
}else{
node.direction = direction;
}
var len = node.children.length;
while(len--){
this._flow_node_direction(node.children[len],direction);
}
},
_move_node_internal:function(node, beforeid){
if(!!node && !!beforeid){
if(beforeid == '_last_'){
node.index = -1;
this._reindex(node.parent);
}else if(beforeid == '_first_'){
node.index = 0;
this._reindex(node.parent);
}else{
var node_before = (!!beforeid)?this.get_node(beforeid):null;
if(node_before!=null && node_before.parent!=null && node_before.parent.id==node.parent.id){
node.index = node_before.index - 0.5;
this._reindex(node.parent);
}
}
}
return node;
},
_move_node:function(node, beforeid, parentid, direction){
if(!!node && !!parentid){
if(node.parent.id != parentid){
// remove from parent's children
var sibling = node.parent.children;
var si = sibling.length;
while(si--){
if(sibling[si].id == node.id){
sibling.splice(si,1);
break;
}
}
node.parent = this.get_node(parentid);
node.parent.children.push(node);
}
if(node.parent.isroot){
if(direction == jsMind.direction.left){
node.direction = direction;
}else{
node.direction = jm.direction.right;
}
}else{
node.direction = node.parent.direction;
}
this._move_node_internal(node, beforeid);
this._flow_node_direction(node);
}
return node;
},
remove_node:function(node){
if(!jm.util.is_node(node)){
var the_node = this.get_node(node);
if(!the_node){
logger.error('the node[id='+node+'] can not be found.');
return false;
}else{
return this.remove_node(the_node);
}
}
if(!node){
logger.error('fail, the node can not be found');
return false;
}
if(node.isroot){
logger.error('fail, can not remove root node');
return false;
}
if(this.selected!=null && this.selected.id == node.id){
this.selected = null;
}
// clean all subordinate nodes
var children = node.children;
var ci = children.length;
while(ci--){
this.remove_node(children[ci]);
}
// clean all children
children.length = 0;
// remove from parent's children
var sibling = node.parent.children;
var si = sibling.length;
while(si--){
if(sibling[si].id == node.id){
sibling.splice(si,1);
break;
}
}
// remove from global nodes
delete this.nodes[node.id];
// clean all properties
for(var k in node){
delete node[k];
}
// remove it's self
node = null;
//delete node;
return true;
},
_put_node:function(node){
if(node.id in this.nodes){
logger.warn('the nodeid \''+node.id+'\' has been already exist.');
return false;
}else{
this.nodes[node.id] = node;
return true;
}
},
_reindex:function(node){
if(node instanceof jm.node){
node.children.sort(jm.node.compare);
for(var i=0;i<node.children.length;i++){
node.children[i].index = i+1;
}
}
},
};
jm.format = {
node_tree:{
example:{
"meta":{
"name":__name__,
"author":__author__,
"version":__version__
},
"format":"node_tree",
"data":{"id":"root","topic":"Welcome to EAF MindMap"}
},
get_mind:function(source){
var df = jm.format.node_tree;
var mind = new jm.mind();
mind.name = source.meta.name;
mind.author = source.meta.author;
mind.version = source.meta.version;
df._parse(mind,source.data);
return mind;
},
get_data:function(mind){
var df = jm.format.node_tree;
var json = {};
json.meta = {
name : mind.name,
author : mind.author,
version : mind.version
};
json.format = 'node_tree';
json.data = df._buildnode(mind.root);
return json;
},
_parse:function(mind, node_root){
var df = jm.format.node_tree;
var data = df._extract_data(node_root);
mind.set_root(node_root.id, node_root.topic, data);
if('children' in node_root){
var children = node_root.children;
for(var i=0;i<children.length;i++){
df._extract_subnode(mind, mind.root, children[i]);
}
}
},
_extract_data:function(node_json){
var data = {};
for(var k in node_json){
if(k == 'id' || k=='topic' || k=='children' || k=='direction' || k=='expanded'){
continue;
}
data[k] = node_json[k];
}
return data;
},
_extract_subnode:function(mind, node_parent, node_json){
var df = jm.format.node_tree;
var data = df._extract_data(node_json);
var d = null;
if(node_parent.isroot){
d = node_json.direction == 'left'?jm.direction.left:jm.direction.right;
}
var node = mind.add_node(node_parent, node_json.id, node_json.topic, data, null, d, node_json.expanded);
if('children' in node_json){
var children = node_json.children;
for(var i=0;i<children.length;i++){
df._extract_subnode(mind, node, children[i]);
}
}
},
_buildnode:function(node){
var df = jm.format.node_tree;
if(!(node instanceof jm.node)){return;}
var o = {
id : node.id,
topic : node.topic,
expanded : node.expanded
};
if(!!node.parent && node.parent.isroot){
o.direction = node.direction == jm.direction.left?'left':'right';
}
if(node.data != null){
var node_data = node.data;
for(var k in node_data){
o[k] = node_data[k];
}
}
var children = node.children;
if(children.length > 0){
o.children = [];
for(var i=0;i<children.length;i++){
o.children.push(df._buildnode(children[i]));
}
}
return o;
}
},
node_array:{
example:{
"meta":{
"name":__name__,
"author":__author__,
"version":__version__
},
"format":"node_array",
"data":[
{"id":"root","topic":"Welcome to EAF MindMap", "isroot":true}
]
},
get_mind:function(source){
var df = jm.format.node_array;
var mind = new jm.mind();
mind.name = source.meta.name;
mind.author = source.meta.author;
mind.version = source.meta.version;
df._parse(mind,source.data);
return mind;
},
get_data:function(mind){
var df = jm.format.node_array;
var json = {};
json.meta = {
name : mind.name,
author : mind.author,
version : mind.version
};
json.format = 'node_array';
json.data = [];
df._array(mind,json.data);
return json;
},
_parse:function(mind, node_array){
var df = jm.format.node_array;
var narray = node_array.slice(0);
// reverse array for improving looping performance
narray.reverse();
var root_id = df._extract_root(mind, narray);
if(!!root_id){
df._extract_subnode(mind, root_id, narray);
}else{
logger.error('root node can not be found');
}
},
_extract_root:function(mind, node_array){
var df = jm.format.node_array;
var i = node_array.length;
while(i--){
if('isroot' in node_array[i] && node_array[i].isroot){
var root_json = node_array[i];
var data = df._extract_data(root_json);
mind.set_root(root_json.id,root_json.topic,data);
node_array.splice(i,1);
return root_json.id;
}
}
return null;
},
_extract_subnode:function(mind, parentid, node_array){
var df = jm.format.node_array;
var i = node_array.length;
var node_json = null;
var data = null;
var extract_count = 0;
while(i--){
node_json = node_array[i];
if(node_json.parentid == parentid){
data = df._extract_data(node_json);
var d = null;
var node_direction = node_json.direction;
if(!!node_direction){
d = node_direction == 'left'?jm.direction.left:jm.direction.right;
}
mind.add_node(parentid, node_json.id, node_json.topic, data, null, d, node_json.expanded);
node_array.splice(i,1);
extract_count ++;
var sub_extract_count = df._extract_subnode(mind, node_json.id, node_array);
if(sub_extract_count > 0){
// reset loop index after extract subordinate node
i = node_array.length;
extract_count += sub_extract_count;
}
}
}
return extract_count;
},
_extract_data:function(node_json){
var data = {};
for(var k in node_json){
if(k == 'id' || k=='topic' || k=='parentid' || k=='isroot' || k=='direction' || k=='expanded'){
continue;
}
data[k] = node_json[k];
}
return data;
},
_array:function(mind, node_array){
var df = jm.format.node_array;
df._array_node(mind.root, node_array);
},
_array_node:function(node, node_array){
var df = jm.format.node_array;
if(!(node instanceof jm.node)){return;}
var o = {
id : node.id,
topic : node.topic,
expanded : node.expanded
};
if(!!node.parent){
o.parentid = node.parent.id;
}
if(node.isroot){
o.isroot = true;
}
if(!!node.parent && node.parent.isroot){
o.direction = node.direction == jm.direction.left?'left':'right';
}
if(node.data != null){
var node_data = node.data;
for(var k in node_data){
o[k] = node_data[k];
}
}
node_array.push(o);
var ci = node.children.length;
for(var i=0;i<ci;i++){
df._array_node(node.children[i], node_array);
}
},
},
freemind:{
example:{
"meta":{
"name":__name__,
"author":__author__,
"version":__version__
},
"format":"freemind",
"data":"<map version=\"1.0.1\"><node ID=\"root\" TEXT=\"freemind Example\"/></map>"
},
get_mind:function(source){
var df = jm.format.freemind;
var mind = new jm.mind();
mind.name = source.meta.name;
mind.author = source.meta.author;
mind.version = source.meta.version;
var xml = source.data;
var xml_doc = df._parse_xml(xml);
var xml_root = df._find_root(xml_doc);
df._load_node(mind, null, xml_root);
return mind;
},
get_data:function(mind){
var df = jm.format.freemind;
var json = {};
json.meta = {
name : mind.name,
author : mind.author,
version : mind.version
};
json.format = 'freemind';
var xmllines = [];
xmllines.push('<map version=\"1.0.1\">');
df._buildmap(mind.root, xmllines);
xmllines.push('</map>');
json.data = xmllines.join(' ');
return json;
},
_parse_xml:function(xml){
var xml_doc = null;
if (window.DOMParser){
var parser = new DOMParser();
xml_doc = parser.parseFromString(xml,'text/xml');
}else{ // Internet Explorer
xml_doc = new ActiveXObject('Microsoft.XMLDOM');
xml_doc.async = false;
xml_doc.loadXML(xml);
}
return xml_doc;
},
_find_root:function(xml_doc){
var nodes = xml_doc.childNodes;
var node = null;
var root = null;
var n = null;
for(var i=0;i<nodes.length;i++){
n = nodes[i];
if(n.nodeType == 1 && n.tagName == 'map'){
node = n;
break;
}
}
if(!!node){
var ns = node.childNodes;
node = null;
for(var i=0;i<ns.length;i++){
n = ns[i];
if(n.nodeType == 1 && n.tagName == 'node'){
node = n;
break;
}
}
}
return node;
},
_load_node:function(mind, parent_id, xml_node){
var df = jm.format.freemind;
var node_id = xml_node.getAttribute('ID');
var node_topic = xml_node.getAttribute('TEXT');
// look for richcontent
if(node_topic == null){
var topic_children = xml_node.childNodes;
var topic_child = null;
for(var i=0;i<topic_children.length;i++){
topic_child = topic_children[i];
//logger.debug(topic_child.tagName);
if(topic_child.nodeType == 1 && topic_child.tagName === 'richcontent'){
node_topic = topic_child.textContent;
break;
}
}
}
var node_data = df._load_attributes(xml_node);
var node_expanded = ('expanded' in node_data)?(node_data.expanded == 'true') : true;
delete node_data.expanded;
var node_position = xml_node.getAttribute('POSITION');
var node_direction = null;
if(!!node_position){
node_direction = node_position=='left'?jm.direction.left:jm.direction.right;
}
//logger.debug(node_position +':'+ node_direction);
if(!!parent_id){
mind.add_node(parent_id, node_id, node_topic, node_data, null, node_direction, node_expanded);
}else{
mind.set_root(node_id, node_topic, node_data);
}
var children = xml_node.childNodes;
var child = null;
for(var i=0;i<children.length;i++){
child = children[i];
if(child.nodeType == 1 && child.tagName == 'node'){
df._load_node(mind, node_id, child);
}
}
},
_load_attributes:function(xml_node){
var children = xml_node.childNodes;
var attr = null;
var attr_data = {};
for(var i=0;i<children.length;i++){
attr = children[i];
if(attr.nodeType == 1 && attr.tagName === 'attribute'){
attr_data[attr.getAttribute('NAME')] = attr.getAttribute('VALUE');
}
}
return attr_data;
},
_buildmap:function(node, xmllines){
var df = jm.format.freemind;
var pos = null;
if(!!node.parent && node.parent.isroot){
pos = node.direction === jm.direction.left?'left':'right';
}
xmllines.push('<node');
xmllines.push('ID=\"'+node.id+'\"');
if(!!pos){
xmllines.push('POSITION=\"'+pos+'\"');
}
xmllines.push('TEXT=\"'+node.topic+'\">');
// store expanded status as an attribute
xmllines.push('<attribute NAME=\"expanded\" VALUE=\"'+node.expanded+'\"/>');
// for attributes
var node_data = node.data;
if(node_data != null){
for(var k in node_data){
xmllines.push('<attribute NAME=\"'+k+'\" VALUE=\"'+node_data[k]+'\"/>');
}
}
// for children
var children = node.children;
for(var i=0;i<children.length;i++){
df._buildmap(children[i], xmllines);
}
xmllines.push('</node>');
},
},
};
// ============= utility object =============================================
jm.util = {
is_node: function(node){
return !!node && node instanceof jm.node;
},
ajax:{
_xhr:function(){
var xhr = null;
if(window.XMLHttpRequest){
xhr = new XMLHttpRequest();
}else{
try{
xhr = new ActiveXObject('Microsoft.XMLHTTP');
}catch(e){}
}
return xhr;
},
_eurl:function(url){
return encodeURIComponent(url);
},
request:function(url,param,method,callback,fail_callback){
var a = jm.util.ajax;
var p = null;
var tmp_param = [];
for(var k in param){
tmp_param.push(a._eurl(k)+'='+a._eurl(param[k]));
}
if(tmp_param.length>0){
p = tmp_param.join('&');
}
var xhr = a._xhr();
if(!xhr){return;}
xhr.onreadystatechange = function(){
if(xhr.readyState == 4){
if(xhr.status == 200 || xhr.status == 0){
if(typeof callback === 'function'){
var data = jm.util.json.string2json(xhr.responseText);
if(data != null){
callback(data);
}else{
callback(xhr.responseText);
}
}
}else{
if(typeof fail_callback === 'function'){
fail_callback(xhr);
}else{
logger.error('xhr request failed.',xhr);
}
}
}
}
method = method || 'GET';
xhr.open(method,url,true);
xhr.setRequestHeader('If-Modified-Since','0');
if(method == 'POST'){
xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded;charset=utf-8');
xhr.send(p);
}else{
xhr.send();
}
},
get:function(url,callback){
return jm.util.ajax.request(url,{},'GET',callback);
},
post:function(url,param,callback){
return jm.util.ajax.request(url,param,'POST',callback);
}
},
dom:{
//target,eventType,handler
add_event:function(t,e,h){
if(!!t.addEventListener){
t.addEventListener(e,h,false);
}else{
t.attachEvent('on'+e,h);
}
}
},
canvas:{
bezierto: function(ctx,x1,y1,x2,y2){
ctx.beginPath();
ctx.moveTo(x1,y1);
ctx.bezierCurveTo(x1+(x2-x1)*2/3,y1,x1,y2,x2,y2);
ctx.stroke();
},
lineto : function(ctx,x1,y1,x2,y2){
ctx.beginPath();
ctx.moveTo(x1,y1);
ctx.lineTo(x2,y2);
ctx.stroke();
},
clear:function(ctx,x,y,w,h){
ctx.clearRect(x,y,w,h);
}
},
file:{
read:function(file_data,fn_callback){
var reader = new FileReader();
reader.onload = function(){
if(typeof fn_callback === 'function'){
fn_callback(this.result, file_data.name);
}
};
reader.readAsText(file_data);
},
save:function(file_data, type, name) {
var blob;
if (typeof $w.Blob === 'function') {
blob = new Blob([file_data], {type: type});
} else {
var BlobBuilder = $w.BlobBuilder || $w.MozBlobBuilder || $w.WebKitBlobBuilder || $w.MSBlobBuilder;
var bb = new BlobBuilder();
bb.append(file_data);
blob = bb.getBlob(type);
}
if (navigator.msSaveBlob) {
navigator.msSaveBlob(blob, name);
} else {
var URL = $w.URL || $w.webkitURL;
var bloburl = URL.createObjectURL(blob);
var anchor = $c('a');
if ('download' in anchor) {
anchor.style.visibility = 'hidden';
anchor.href = bloburl;
anchor.download = name;
$d.body.appendChild(anchor);
var evt = $d.createEvent('MouseEvents');
evt.initEvent('click', true, true);
anchor.dispatchEvent(evt);
$d.body.removeChild(anchor);
} else {
location.href = bloburl;
}
}
}
},
json:{
json2string:function(json){
if(!!JSON){
try{
var json_str = JSON.stringify(json);
return json_str;
}catch(e){
logger.warn(e);
logger.warn('can not convert to string');
return null;
}
}
},
string2json:function(json_str){
if(!!JSON){
try{
var json = JSON.parse(json_str);
return json;
}catch(e){
logger.warn(e);
logger.warn('can not parse to json');
return null;
}
}
},
merge:function(b,a){
for(var o in a){
if(o in b){
if(typeof b[o] === 'object' &&
Object.prototype.toString.call(b[o]).toLowerCase() == '[object object]' &&
!b[o].length){
jm.util.json.merge(b[o], a[o]);
}else{
b[o] = a[o];
}
}else{
b[o] = a[o];
}
}
return b;
}
},
uuid:{
newid:function(){
return (new Date().getTime().toString(16)+Math.random().toString(16).substr(2)).substr(2,16);
}
},
text:{
is_empty:function(s){
if(!s){return true;}
return s.replace(/\s*/,'').length == 0;
}
}
};
jm.prototype={
init : function(){
if(this.inited){return;}
this.inited = true;
var opts = this.options;
var opts_layout = {
mode:opts.mode,
hspace:opts.layout.hspace,
vspace:opts.layout.vspace,
pspace:opts.layout.pspace
}
var opts_view = {
container:opts.container,
support_html:opts.support_html,
hmargin:opts.view.hmargin,
vmargin:opts.view.vmargin,
line_width:opts.view.line_width,
line_color:opts.view.line_color
};
// create instance of function provider
this.data = new jm.data_provider(this);
this.layout = new jm.layout_provider(this, opts_layout);
this.view = new jm.view_provider(this, opts_view);
this.shortcut = new jm.shortcut_provider(this, opts.shortcut);
this.data.init();
this.layout.init();
this.view.init();
this.shortcut.init();
this._event_bind();
jm.init_plugins(this);
},
enable_edit:function(){
this.options.editable = true;
},
disable_edit:function(){
this.options.editable = false;
},
// call enable_event_handle('dblclick')
// options are 'mousedown', 'click', 'dblclick'
enable_event_handle: function(event_handle){
this.options.default_event_handle['enable_'+event_handle+'_handle'] = true;
},
// call disable_event_handle('dblclick')
// options are 'mousedown', 'click', 'dblclick'
disable_event_handle: function(event_handle){
this.options.default_event_handle['enable_'+event_handle+'_handle'] = false;
},
get_editable:function(){
return this.options.editable;
},
set_theme:function(theme){
var theme_old = this.options.theme;
this.options.theme = (!!theme) ? theme : null;
if(theme_old != this.options.theme){
this.view.reset_theme();
this.view.reset_custom_style();
}
},
_event_bind:function(){
this.view.add_event(this,'mousedown',this.mousedown_handle);
this.view.add_event(this,'click',this.click_handle);
this.view.add_event(this,'dblclick',this.dblclick_handle);
},
mousedown_handle:function(e){
if (!this.options.default_event_handle['enable_mousedown_handle']) {
return;
}
var element = e.target || event.srcElement;
var nodeid = this.view.get_binded_nodeid(element);
if(!!nodeid){
this.select_node(nodeid);
}else{
this.select_clear();
}
},
click_handle:function(e){
if (!this.options.default_event_handle['enable_click_handle']) {
return;
}
var element = e.target || event.srcElement;
var isexpander = this.view.is_expander(element);
if(isexpander){
var nodeid = this.view.get_binded_nodeid(element);
if(!!nodeid){
this.toggle_node(nodeid);
}
}
},
dblclick_handle:function(e){
if (!this.options.default_event_handle['enable_dblclick_handle']) {
return;
}
if(this.get_editable()){
var element = e.target || event.srcElement;
var nodeid = this.view.get_binded_nodeid(element);
if(!!nodeid){
this.begin_edit(nodeid);
}
}
},
begin_edit:function(node){
if(!jm.util.is_node(node)){
var the_node = this.get_node(node);
if(!the_node){
logger.error('the node[id='+node+'] can not be found.');
return false;
}else{
return this.begin_edit(the_node);
}
}
if(this.get_editable()){
this.view.edit_node_begin(node);
}else{
logger.error('fail, this mind map is not editable.');
return;
}
},
end_edit:function(){
this.view.edit_node_end();
},
toggle_node:function(node){
if(!jm.util.is_node(node)){
var the_node = this.get_node(node);
if(!the_node){
logger.error('the node[id='+node+'] can not be found.');
return;
}else{
return this.toggle_node(the_node);
}
}
if(node.isroot){return;}
this.view.save_location(node);
this.layout.toggle_node(node);
this.view.relayout();
this.view.restore_location(node);
},
expand_node:function(node){
if(!jm.util.is_node(node)){
var the_node = this.get_node(node);
if(!the_node){
logger.error('the node[id='+node+'] can not be found.');
return;
}else{
return this.expand_node(the_node);
}
}
if(node.isroot){return;}
this.view.save_location(node);
this.layout.expand_node(node);
this.view.relayout();
this.view.restore_location(node);
},
collapse_node:function(node){
if(!jm.util.is_node(node)){
var the_node = this.get_node(node);
if(!the_node){
logger.error('the node[id='+node+'] can not be found.');
return;
}else{
return this.collapse_node(the_node);
}
}
if(node.isroot){return;}
this.view.save_location(node);
this.layout.collapse_node(node);
this.view.relayout();
this.view.restore_location(node);
},
expand_all:function(){
this.layout.expand_all();
this.view.relayout();
},
collapse_all:function(){
this.layout.collapse_all();
this.view.relayout();
},
expand_to_depth:function(depth){
this.layout.expand_to_depth(depth);
this.view.relayout();
},
_reset:function(){
this.view.reset();
this.layout.reset();
this.data.reset();
},
_show:function(mind){
var m = mind || jm.format.node_array.example;
this.mind = this.data.load(m);
if(!this.mind){
logger.error('data.load error');
return;
}else{
logger.debug('data.load ok');
}
this.view.load();
logger.debug('view.load ok');
this.layout.layout();
logger.debug('layout.layout ok');
this.view.show(true);
logger.debug('view.show ok');
this.invoke_event_handle(jm.event_type.show,{data:[mind]});
},
show : function(mind){
this._reset();
this._show(mind);
},
get_meta: function(){
return {
name : this.mind.name,
author : this.mind.author,
version : this.mind.version
};
},
get_data: function(data_format){
var df = data_format || 'node_tree';
return this.data.get_data(df);
},
get_root:function(){
return this.mind.root;
},
get_node:function(nodeid){
return this.mind.get_node(nodeid);
},
add_node:function(parent_node, nodeid, topic, data){
if(this.get_editable()){
var node = this.mind.add_node(parent_node, nodeid, topic, data);
if(!!node){
this.view.add_node(node);
this.layout.layout();
this.view.show(false);
this.view.reset_node_custom_style(node);
this.expand_node(parent_node);
this.invoke_event_handle(jm.event_type.edit,{evt:'add_node',data:[parent_node.id,nodeid,topic,data],node:nodeid});
}
return node;
}else{
logger.error('fail, this mind map is not editable');
return null;
}
},
insert_node_before:function(node_before, nodeid, topic, data){
if(this.get_editable()){
var beforeid = jm.util.is_node(node_before) ? node_before.id : node_before;
var node = this.mind.insert_node_before(node_before, nodeid, topic, data);
if(!!node){
this.view.add_node(node);
this.layout.layout();
this.view.show(false);
this.invoke_event_handle(jm.event_type.edit,{evt:'insert_node_before',data:[beforeid,nodeid,topic,data],node:nodeid});
}
return node;
}else{
logger.error('fail, this mind map is not editable');
return null;
}
},
insert_node_after:function(node_after, nodeid, topic, data){
if(this.get_editable()){
var afterid = jm.util.is_node(node_after) ? node_after.id : node_after;
var node = this.mind.insert_node_after(node_after, nodeid, topic, data);
if(!!node){
this.view.add_node(node);
this.layout.layout();
this.view.show(false);
this.invoke_event_handle(jm.event_type.edit,{evt:'insert_node_after',data:[afterid,nodeid,topic,data],node:nodeid});
}
return node;
}else{
logger.error('fail, this mind map is not editable');
return null;
}
},
remove_node:function(node){
if(!jm.util.is_node(node)){
var the_node = this.get_node(node);
if(!the_node){
logger.error('the node[id='+node+'] can not be found.');
return false;
}else{
return this.remove_node(the_node);
}
}
if(this.get_editable()){
if(node.isroot){
logger.error('fail, can not remove root node');
return false;
}
var nodeid = node.id;
var parentid = node.parent.id;
var parent_node = this.get_node(parentid);
this.view.save_location(parent_node);
this.view.remove_node(node);
this.mind.remove_node(node);
this.layout.layout();
this.view.show(false);
this.view.restore_location(parent_node);
this.invoke_event_handle(jm.event_type.edit,{evt:'remove_node',data:[nodeid],node:parentid});
return true;
}else{
logger.error('fail, this mind map is not editable');
return false;
}
},
update_node:function(nodeid, topic){
if(this.get_editable()){
if(jm.util.text.is_empty(topic)){
logger.warn('fail, topic can not be empty');
return;
}
var node = this.get_node(nodeid);
if(!!node){
if(node.topic === topic){
logger.info('nothing changed');
this.view.update_node(node);
return;
}
node.topic = topic;
this.view.update_node(node);
this.layout.layout();
this.view.show(false);
this.invoke_event_handle(jm.event_type.edit,{evt:'update_node',data:[nodeid,topic],node:nodeid});
}
}else{
logger.error('fail, this mind map is not editable');
return;
}
},
move_node:function(nodeid, beforeid, parentid, direction){
if(this.get_editable()){
var node = this.mind.move_node(nodeid,beforeid,parentid,direction);
if(!!node){
this.view.update_node(node);
this.layout.layout();
this.view.show(false);
this.invoke_event_handle(jm.event_type.edit,{evt:'move_node',data:[nodeid,beforeid,parentid,direction],node:nodeid});
}
}else{
logger.error('fail, this mind map is not editable');
return;
}
},
select_node:function(node){
if(!jm.util.is_node(node)){
var the_node = this.get_node(node);
if(!the_node){
logger.error('the node[id='+node+'] can not be found.');
return;
}else{
return this.select_node(the_node);
}
}
if(!this.layout.is_visible(node)){
return;
}
this.mind.selected = node;
this.view.select_node(node);
},
get_selected_node:function(){
if(!!this.mind){
return this.mind.selected;
}else{
return null;
}
},
select_clear:function(){
if(!!this.mind){
this.mind.selected = null;
this.view.select_clear();
}
},
is_node_visible:function(node){
return this.layout.is_visible(node);
},
find_node_before:function(node){
if(!jm.util.is_node(node)){
var the_node = this.get_node(node);
if(!the_node){
logger.error('the node[id='+node+'] can not be found.');
return;
}else{
return this.find_node_before(the_node);
}
}
if(node.isroot){return null;}
var n = null;
if(node.parent.isroot){
var c = node.parent.children;
var prev = null;
var ni = null;
for(var i=0;i<c.length;i++){
ni = c[i];
if(node.direction === ni.direction){
if(node.id === ni.id){
n = prev;
}
prev = ni;
}
}
}else{
n = this.mind.get_node_before(node);
}
return n;
},
find_node_after:function(node){
if(!jm.util.is_node(node)){
var the_node = this.get_node(node);
if(!the_node){
logger.error('the node[id='+node+'] can not be found.');
return;
}else{
return this.find_node_after(the_node);
}
}
if(node.isroot){return null;}
var n = null;
if(node.parent.isroot){
var c = node.parent.children;
var getthis = false;
var ni = null;
for(var i=0;i<c.length;i++){
ni = c[i];
if(node.direction === ni.direction){
if(getthis){
n = ni;
break;
}
if(node.id === ni.id){
getthis = true;
}
}
}
}else{
n = this.mind.get_node_after(node);
}
return n;
},
set_node_color:function(nodeid, bgcolor, fgcolor){
if(this.get_editable()){
var node = this.mind.get_node(nodeid);
if(!!node){
if(!!bgcolor){
node.data['background-color'] = bgcolor;
}
if(!!fgcolor){
node.data['foreground-color'] = fgcolor;
}
this.view.reset_node_custom_style(node);
}
}else{
logger.error('fail, this mind map is not editable');
return null;
}
},
set_node_font_style:function(nodeid, size, weight, style){
if(this.get_editable()){
var node = this.mind.get_node(nodeid);
if(!!node){
if(!!size){
node.data['font-size'] = size;
}
if(!!weight){
node.data['font-weight'] = weight;
}
if(!!style){
node.data['font-style'] = style;
}
this.view.reset_node_custom_style(node);
this.view.update_node(node);
this.layout.layout();
this.view.show(false);
}
}else{
logger.error('fail, this mind map is not editable');
return null;
}
},
set_node_background_image:function(nodeid, image, width, height, rotation){
if(this.get_editable()){
var node = this.mind.get_node(nodeid);
if(!!node){
if(!!image){
node.data['background-image'] = image;
}
if(!!width){
node.data['width'] = width;
}
if(!!height){
node.data['height'] = height;
}
if(!!rotation){
node.data['background-rotation'] = rotation;
}
this.view.reset_node_custom_style(node);
this.view.update_node(node);
this.layout.layout();
this.view.show(false);
}
}else{
logger.error('fail, this mind map is not editable');
return null;
}
},
set_node_background_rotation:function(nodeid, rotation){
if(this.get_editable()){
var node = this.mind.get_node(nodeid);
if(!!node){
if(!node.data['background-image']) {
logger.error('fail, only can change rotation angle of node with background image');
return null;
}
node.data['background-rotation'] = rotation;
this.view.reset_node_custom_style(node);
this.view.update_node(node);
this.layout.layout();
this.view.show(false);
}
}else{
logger.error('fail, this mind map is not editable');
return null;
}
},
resize:function(){
this.view.resize();
},
// callback(type ,data)
add_event_listener:function(callback){
if(typeof callback === 'function'){
this.event_handles.push(callback);
}
},
invoke_event_handle:function(type, data){
var j = this;
$w.setTimeout(function(){
j._invoke_event_handle(type,data);
},0);
},
_invoke_event_handle:function(type,data){
var l = this.event_handles.length;
for(var i=0;i<l;i++){
this.event_handles[i](type,data);
}
}
};
// ============= data provider =============================================
jm.data_provider = function(jm){
this.jm = jm;
};
jm.data_provider.prototype={
init:function(){
logger.debug('data.init');
},
reset:function(){
logger.debug('data.reset');
},
load:function(mind_data){
var df = null;
var mind = null;
if(typeof mind_data === 'object'){
if(!!mind_data.format){
df = mind_data.format;
}else{
df = 'node_tree';
}
}else{
df = 'freemind';
}
if(df == 'node_array'){
mind = jm.format.node_array.get_mind(mind_data);
}else if(df == 'node_tree'){
mind = jm.format.node_tree.get_mind(mind_data);
}else if(df == 'freemind'){
mind = jm.format.freemind.get_mind(mind_data);
}else{
logger.warn('unsupported format');
}
return mind;
},
get_data:function(data_format){
var data = null;
if(data_format == 'node_array'){
data = jm.format.node_array.get_data(this.jm.mind);
}else if(data_format == 'node_tree'){
data = jm.format.node_tree.get_data(this.jm.mind);
}else if(data_format == 'freemind'){
data = jm.format.freemind.get_data(this.jm.mind);
}else{
logger.error('unsupported '+data_format+' format');
}
return data;
},
};
// ============= layout provider ===========================================
jm.layout_provider = function(jm, options){
this.opts = options;
this.jm = jm;
this.isside = (this.opts.mode == 'side');
this.bounds = null;
this.cache_valid = false;
};
jm.layout_provider.prototype={
init:function(){
logger.debug('layout.init');
},
reset:function(){
logger.debug('layout.reset');
this.bounds = {n:0,s:0,w:0,e:0};
},
layout:function(){
logger.debug('layout.layout');
this.layout_direction();
this.layout_offset();
},
layout_direction:function(){
this._layout_direction_root();
},
_layout_direction_root:function(){
var node = this.jm.mind.root;
// logger.debug(node);
var layout_data = null;
if('layout' in node._data){
layout_data = node._data.layout;
}else{
layout_data = {};
node._data.layout = layout_data;
}
var children = node.children;
var children_count = children.length;
layout_data.direction = jm.direction.center;
layout_data.side_index = 0;
if(this.isside){
var i = children_count;
while(i--){
this._layout_direction_side(children[i], jm.direction.right, i);
}
}else{
var i = children_count;
var subnode = null;
while(i--){
subnode = children[i];
if(subnode.direction == jm.direction.left){
this._layout_direction_side(subnode,jm.direction.left, i);
}else{
this._layout_direction_side(subnode,jm.direction.right, i);
}
}
/*
var boundary = Math.ceil(children_count/2);
var i = children_count;
while(i--){
if(i>=boundary){
this._layout_direction_side(children[i],jm.direction.left, children_count-i-1);
}else{
this._layout_direction_side(children[i],jm.direction.right, i);
}
}*/
}
},
_layout_direction_side:function(node, direction, side_index){
var layout_data = null;
if('layout' in node._data){
layout_data = node._data.layout;
}else{
layout_data = {};
node._data.layout = layout_data;
}
var children = node.children;
var children_count = children.length;
layout_data.direction = direction;
layout_data.side_index = side_index;
var i = children_count;
while(i--){
this._layout_direction_side(children[i], direction, i);
}
},
layout_offset:function(){
var node = this.jm.mind.root;
var layout_data = node._data.layout;
layout_data.offset_x = 0;
layout_data.offset_y = 0;
layout_data.outer_height = 0;
var children = node.children;
var i = children.length;
var left_nodes = [];
var right_nodes = [];
var subnode = null;
while(i--){
subnode = children[i];
if(subnode._data.layout.direction == jm.direction.right){
right_nodes.unshift(subnode);
}else{
left_nodes.unshift(subnode);
}
}
layout_data.left_nodes = left_nodes;
layout_data.right_nodes = right_nodes;
layout_data.outer_height_left = this._layout_offset_subnodes(left_nodes);
layout_data.outer_height_right = this._layout_offset_subnodes(right_nodes);
this.bounds.e=node._data.view.width/2;
this.bounds.w=0-this.bounds.e;
//logger.debug(this.bounds.w);
this.bounds.n=0;
this.bounds.s = Math.max(layout_data.outer_height_left,layout_data.outer_height_right);
},
// layout both the x and y axis
_layout_offset_subnodes:function(nodes){
var total_height = 0;
var nodes_count = nodes.length;
var i = nodes_count;
var node = null;
var node_outer_height = 0;
var layout_data = null;
var base_y = 0;
var pd = null; // parent._data
while(i--){
node = nodes[i];
layout_data = node._data.layout;
if(pd == null){
pd = node.parent._data;
}
node_outer_height = this._layout_offset_subnodes(node.children);
if(!node.expanded){
node_outer_height=0;
this.set_visible(node.children,false);
}
node_outer_height = Math.max(node._data.view.height,node_outer_height);
layout_data.outer_height = node_outer_height;
layout_data.offset_y = base_y - node_outer_height/2;
layout_data.offset_x = this.opts.hspace * layout_data.direction + pd.view.width * (pd.layout.direction + layout_data.direction)/2;
if(!node.parent.isroot){
layout_data.offset_x += this.opts.pspace * layout_data.direction;
}
base_y = base_y - node_outer_height - this.opts.vspace;
total_height += node_outer_height;
}
if(nodes_count>1){
total_height += this.opts.vspace * (nodes_count-1);
}
i = nodes_count;
var middle_height = total_height/2;
while(i--){
node = nodes[i];
node._data.layout.offset_y += middle_height;
}
return total_height;
},
// layout the y axis only, for collapse/expand a node
_layout_offset_subnodes_height:function(nodes){
var total_height = 0;
var nodes_count = nodes.length;
var i = nodes_count;
var node = null;
var node_outer_height = 0;
var layout_data = null;
var base_y = 0;
var pd = null; // parent._data
while(i--){
node = nodes[i];
layout_data = node._data.layout;
if(pd == null){
pd = node.parent._data;
}
node_outer_height = this._layout_offset_subnodes_height(node.children);
if(!node.expanded){
node_outer_height=0;
}
node_outer_height = Math.max(node._data.view.height,node_outer_height);
layout_data.outer_height = node_outer_height;
layout_data.offset_y = base_y - node_outer_height/2;
base_y = base_y - node_outer_height - this.opts.vspace;
total_height += node_outer_height;
}
if(nodes_count>1){
total_height += this.opts.vspace * (nodes_count-1);
}
i = nodes_count;
var middle_height = total_height/2;
while(i--){
node = nodes[i];
node._data.layout.offset_y += middle_height;
//logger.debug(node.topic);
//logger.debug(node._data.layout.offset_y);
}
return total_height;
},
get_node_offset:function(node){
var layout_data = node._data.layout;
var offset_cache = null;
if(('_offset_' in layout_data) && this.cache_valid){
offset_cache = layout_data._offset_;
}else{
offset_cache = {x:-1, y:-1};
layout_data._offset_ = offset_cache;
}
if(offset_cache.x == -1 || offset_cache.y == -1){
var x = layout_data.offset_x;
var y = layout_data.offset_y;
if(!node.isroot){
var offset_p = this.get_node_offset(node.parent);
x += offset_p.x;
y += offset_p.y;
}
offset_cache.x = x;
offset_cache.y = y;
}
return offset_cache;
},
get_node_point:function(node){
var view_data = node._data.view;
var offset_p = this.get_node_offset(node);
//logger.debug(offset_p);
var p = {};
p.x = offset_p.x + view_data.width*(node._data.layout.direction-1)/2;
p.y = offset_p.y-view_data.height/2;
//logger.debug(p);
return p;
},
get_node_point_in:function(node){
var p = this.get_node_offset(node);
return p;
},
get_node_point_out:function(node){
var layout_data = node._data.layout;
var pout_cache = null;
if(('_pout_' in layout_data) && this.cache_valid){
pout_cache = layout_data._pout_;
}else{
pout_cache = {x:-1, y:-1};
layout_data._pout_ = pout_cache;
}
if(pout_cache.x == -1 || pout_cache.y == -1){
if(node.isroot){
pout_cache.x = 0;
pout_cache.y = 0;
}else{
var view_data = node._data.view;
var offset_p = this.get_node_offset(node);
pout_cache.x = offset_p.x + (view_data.width+this.opts.pspace)*node._data.layout.direction;
pout_cache.y = offset_p.y;
//logger.debug('pout');
//logger.debug(pout_cache);
}
}
return pout_cache;
},
get_expander_point:function(node){
var p = this.get_node_point_out(node);
var ex_p = {};
if(node._data.layout.direction == jm.direction.right){
ex_p.x = p.x - this.opts.pspace;
}else{
ex_p.x = p.x;
}
ex_p.y = p.y - Math.ceil(this.opts.pspace/2);
return ex_p;
},
get_min_size:function(){
var nodes = this.jm.mind.nodes;
var node = null;
var pout = null;
for(var nodeid in nodes){
node = nodes[nodeid];
pout = this.get_node_point_out(node);
//logger.debug(pout.x);
if(pout.x > this.bounds.e){this.bounds.e = pout.x;}
if(pout.x < this.bounds.w){this.bounds.w = pout.x;}
}
return {
w:this.bounds.e - this.bounds.w,
h:this.bounds.s - this.bounds.n
}
},
toggle_node:function(node){
if(node.isroot){
return;
}
if(node.expanded){
this.collapse_node(node);
}else{
this.expand_node(node);
}
},
expand_node:function(node){
node.expanded = true;
this.part_layout(node);
this.set_visible(node.children,true);
},
collapse_node:function(node){
node.expanded = false;
this.part_layout(node);
this.set_visible(node.children,false);
},
expand_all:function(){
var nodes = this.jm.mind.nodes;
var c = 0;
var node;
for(var nodeid in nodes){
node = nodes[nodeid];
if(!node.expanded){
node.expanded = true;
c++;
}
}
if(c>0){
var root = this.jm.mind.root;
this.part_layout(root);
this.set_visible(root.children,true);
}
},
collapse_all:function(){
var nodes = this.jm.mind.nodes;
var c = 0;
var node;
for(var nodeid in nodes){
node = nodes[nodeid];
if(node.expanded && !node.isroot){
node.expanded = false
c++;
}
}
if(c>0){
var root = this.jm.mind.root;
this.part_layout(root);
this.set_visible(root.children,true);
}
},
expand_to_depth:function(target_depth,curr_nodes,curr_depth){
if(target_depth < 1){return;}
var nodes = curr_nodes || this.jm.mind.root.children;
var depth = curr_depth || 1;
var i = nodes.length;
var node = null;
while(i--){
node = nodes[i];
if(depth < target_depth){
if(!node.expanded){
this.expand_node(node);
}
this.expand_to_depth(target_depth, node.children, depth+1);
}
if(depth == target_depth){
if(node.expanded){
this.collapse_node(node);
}
}
}
},
part_layout:function(node){
var root = this.jm.mind.root;
if(!!root){
var root_layout_data = root._data.layout;
if(node.isroot){
root_layout_data.outer_height_right=this._layout_offset_subnodes_height(root_layout_data.right_nodes);
root_layout_data.outer_height_left=this._layout_offset_subnodes_height(root_layout_data.left_nodes);
}else{
if(node._data.layout.direction == jm.direction.right){
root_layout_data.outer_height_right=this._layout_offset_subnodes_height(root_layout_data.right_nodes);
}else{
root_layout_data.outer_height_left=this._layout_offset_subnodes_height(root_layout_data.left_nodes);
}
}
this.bounds.s = Math.max(root_layout_data.outer_height_left,root_layout_data.outer_height_right);
this.cache_valid = false;
}else{
logger.warn('can not found root node');
}
},
set_visible:function(nodes,visible){
var i = nodes.length;
var node = null;
var layout_data = null;
while(i--){
node = nodes[i];
layout_data = node._data.layout;
if(node.expanded){
this.set_visible(node.children,visible);
}else{
this.set_visible(node.children,false);
}
if(!node.isroot){
node._data.layout.visible = visible;
}
}
},
is_expand:function(node){
return node.expanded;
},
is_visible:function(node){
var layout_data = node._data.layout;
if(('visible' in layout_data) && !layout_data.visible){
return false;
}else{
return true;
}
},
};
// view provider
jm.view_provider= function(jm, options){
this.opts = options;
this.jm = jm;
this.layout = jm.layout;
this.container = null;
this.e_panel = null;
this.e_nodes= null;
this.e_canvas = null;
this.canvas_ctx = null;
this.size = {w:0,h:0};
this.selected_node = null;
this.editing_node = null;
};
jm.view_provider.prototype={
init:function(){
logger.debug('view.init');
this.container = $i(this.opts.container) ? this.opts.container : $g(this.opts.container);
if(!this.container){
logger.error('the options.view.container was not be found in dom');
return;
}
this.e_panel = $c('div');
this.e_canvas = $c('canvas');
this.e_nodes = $c('jmnodes');
this.e_editor = $c('input');
this.e_panel.className = 'jsmind-inner';
this.e_panel.appendChild(this.e_canvas);
this.e_panel.appendChild(this.e_nodes);
this.e_editor.className = 'jsmind-editor';
this.e_editor.type = 'text';
this.actualZoom = 1;
this.zoomStep = 0.1;
this.minZoom = 0.5;
this.maxZoom = 2;
var v = this;
jm.util.dom.add_event(this.e_editor,'keydown',function(e){
var evt = e || event;
if(evt.keyCode == 13){v.edit_node_end();evt.stopPropagation();}
});
jm.util.dom.add_event(this.e_editor,'blur',function(e){
v.edit_node_end();
});
this.container.appendChild(this.e_panel);
this.init_canvas();
},
add_event:function(obj,event_name,event_handle){
jm.util.dom.add_event(this.e_nodes,event_name,function(e){
var evt = e || event;
event_handle.call(obj,evt);
});
},
get_binded_nodeid:function(element){
if(element == null){
return null;
}
var tagName = element.tagName.toLowerCase();
if(tagName == 'jmnodes' || tagName == 'body' || tagName == 'html'){
return null;
}
if(tagName == 'jmnode' || tagName == 'jmexpander'){
return element.getAttribute('nodeid');
}else{
return this.get_binded_nodeid(element.parentElement);
}
},
is_expander:function(element){
return (element.tagName.toLowerCase() == 'jmexpander');
},
reset:function(){
logger.debug('view.reset');
this.selected_node = null;
this.clear_lines();
this.clear_nodes();
this.reset_theme();
},
reset_theme:function(){
var theme_name = this.jm.options.theme;
if(!!theme_name){
this.e_nodes.className = 'theme-' + theme_name;
}else{
this.e_nodes.className = '';
}
},
reset_custom_style:function(){
var nodes = this.jm.mind.nodes;
for(var nodeid in nodes){
this.reset_node_custom_style(nodes[nodeid]);
}
},
load:function(){
logger.debug('view.load');
this.init_nodes();
},
expand_size:function(){
var min_size = this.layout.get_min_size();
var min_width = min_size.w + this.opts.hmargin*2;
var min_height = min_size.h + this.opts.vmargin*2;
var client_w = this.e_panel.clientWidth;
var client_h = this.e_panel.clientHeight;
if(client_w < min_width){client_w = min_width;}
if(client_h < min_height){client_h = min_height;}
this.size.w = client_w;
this.size.h = client_h;
},
init_canvas:function(){
var ctx = this.e_canvas.getContext('2d');
this.canvas_ctx = ctx;
},
init_nodes_size:function(node){
var view_data = node._data.view;
view_data.width = view_data.element.clientWidth;
view_data.height = view_data.element.clientHeight;
},
init_nodes:function(){
var nodes = this.jm.mind.nodes;
var doc_frag = $d.createDocumentFragment();
for(var nodeid in nodes){
this.create_node_element(nodes[nodeid],doc_frag);
}
this.e_nodes.appendChild(doc_frag);
for(var nodeid in nodes){
this.init_nodes_size(nodes[nodeid]);
}
},
add_node:function(node){
this.create_node_element(node,this.e_nodes);
this.init_nodes_size(node);
},
create_node_element:function(node,parent_node){
var view_data = null;
if('view' in node._data){
view_data = node._data.view;
}else{
view_data = {};
node._data.view = view_data;
}
var d = $c('jmnode');
if(node.isroot){
d.className = 'root';
}else{
var d_e = $c('jmexpander');
$t(d_e,'-');
d_e.setAttribute('nodeid',node.id);
d_e.style.visibility = 'hidden';
parent_node.appendChild(d_e);
view_data.expander = d_e;
}
if (!!node.topic) {
if(this.opts.support_html){
$h(d,node.topic);
}else{
$t(d,node.topic);
}
}
d.setAttribute('nodeid',node.id);
d.style.visibility='hidden';
this._reset_node_custom_style(d, node.data);
parent_node.appendChild(d);
view_data.element = d;
},
remove_node:function(node){
if(this.selected_node != null && this.selected_node.id == node.id){
this.selected_node = null;
}
if(this.editing_node != null && this.editing_node.id == node.id){
node._data.view.element.removeChild(this.e_editor);
this.editing_node = null;
}
var children = node.children;
var i = children.length;
while(i--){
this.remove_node(children[i]);
}
if(node._data.view){
var element = node._data.view.element;
var expander = node._data.view.expander;
this.e_nodes.removeChild(element);
this.e_nodes.removeChild(expander);
node._data.view.element = null;
node._data.view.expander = null;
}
},
update_node:function(node){
var view_data = node._data.view;
var element = view_data.element;
if (!!node.topic) {
if(this.opts.support_html){
$h(element,node.topic);
}else{
$t(element,node.topic);
}
}
view_data.width = element.clientWidth;
view_data.height = element.clientHeight;
},
select_node:function(node){
if(!!this.selected_node){
this.selected_node._data.view.element.className =
this.selected_node._data.view.element.className.replace(/\s*selected\b/i,'');
this.reset_node_custom_style(this.selected_node);
}
if(!!node){
this.selected_node = node;
node._data.view.element.className += ' selected';
this.clear_node_custom_style(node);
}
},
select_clear:function(){
this.select_node(null);
},
get_editing_node:function(){
return this.editing_node;
},
is_editing:function(){
return (!!this.editing_node);
},
edit_node_begin:function(node){
if(!node.topic) {
logger.warn("don't edit image nodes");
return;
}
if(this.editing_node != null){
this.edit_node_end();
}
this.editing_node = node;
var view_data = node._data.view;
var element = view_data.element;
var topic = node.topic;
var ncs = getComputedStyle(element);
this.e_editor.value = topic;
this.e_editor.style.width = (element.clientWidth-parseInt(ncs.getPropertyValue('padding-left'))-parseInt(ncs.getPropertyValue('padding-right')))+'px';
element.innerHTML = '';
element.appendChild(this.e_editor);
element.style.zIndex = 5;
this.e_editor.focus();
this.e_editor.select();
},
edit_node_end:function(){
if(this.editing_node != null){
var node = this.editing_node;
this.editing_node = null;
var view_data = node._data.view;
var element = view_data.element;
var topic = this.e_editor.value;
element.style.zIndex = 'auto';
element.removeChild(this.e_editor);
if(jm.util.text.is_empty(topic) || node.topic === topic){
if(this.opts.support_html){
$h(element,node.topic);
}else{
$t(element,node.topic);
}
}else{
this.jm.update_node(node.id,topic);
}
}
},
get_view_offset:function(){
var bounds = this.layout.bounds;
var _x = (this.size.w - bounds.e - bounds.w)/2;
var _y = this.size.h / 2;
return{x:_x, y:_y};
},
resize:function(){
this.e_canvas.width = 1;
this.e_canvas.height = 1;
this.e_nodes.style.width = '1px';
this.e_nodes.style.height = '1px';
this.expand_size();
this._show();
},
_show:function(){
this.e_canvas.width = this.size.w;
this.e_canvas.height = this.size.h;
this.e_nodes.style.width = this.size.w+'px';
this.e_nodes.style.height = this.size.h+'px';
this.show_nodes();
this.show_lines();
//this.layout.cache_valid = true;
this.jm.invoke_event_handle(jm.event_type.resize,{data:[]});
},
zoom_in: function() {
return this.set_zoom(this.actualZoom + this.zoomStep);
},
zoom_out: function() {
return this.set_zoom(this.actualZoom - this.zoomStep);
},
set_zoom: function(zoom) {
if ((zoom < this.minZoom) || (zoom > this.maxZoom)) {
return false;
}
this.actualZoom = zoom;
for (var i=0; i < this.e_panel.children.length; i++) {
this.e_panel.children[i].style.transform = 'scale(' + zoom + ')';
};
this.show(true);
return true;
},
_center_root:function(){
// center root node
var outer_w = this.e_panel.clientWidth;
var outer_h = this.e_panel.clientHeight;
if(this.size.w > outer_w){
var _offset = this.get_view_offset();
this.e_panel.scrollLeft = _offset.x - outer_w/2;
}
if(this.size.h > outer_h){
this.e_panel.scrollTop = (this.size.h - outer_h)/2;
}
},
show:function(keep_center){
logger.debug('view.show');
this.expand_size();
this._show();
if(!!keep_center){
this._center_root();
}
},
relayout:function(){
this.expand_size();
this._show();
},
save_location:function(node){
var vd = node._data.view;
vd._saved_location={
x:parseInt(vd.element.style.left)-this.e_panel.scrollLeft,
y:parseInt(vd.element.style.top)-this.e_panel.scrollTop,
};
},
restore_location:function(node){
var vd = node._data.view;
this.e_panel.scrollLeft = parseInt(vd.element.style.left)-vd._saved_location.x;
this.e_panel.scrollTop = parseInt(vd.element.style.top)-vd._saved_location.y;
},
clear_nodes:function(){
var mind = this.jm.mind;
if(mind == null){
return;
}
var nodes = mind.nodes;
var node = null;
for(var nodeid in nodes){
node = nodes[nodeid];
node._data.view.element = null;
node._data.view.expander = null;
}
this.e_nodes.innerHTML = '';
},
show_nodes:function(){
var nodes = this.jm.mind.nodes;
var node = null;
var node_element = null;
var expander = null;
var p = null;
var p_expander= null;
var expander_text = '-';
var view_data = null;
var _offset = this.get_view_offset();
for(var nodeid in nodes){
node = nodes[nodeid];
view_data = node._data.view;
node_element = view_data.element;
expander = view_data.expander;
if(!this.layout.is_visible(node)){
node_element.style.display = 'none';
expander.style.display = 'none';
continue;
}
this.reset_node_custom_style(node);
p = this.layout.get_node_point(node);
view_data.abs_x = _offset.x + p.x;
view_data.abs_y = _offset.y + p.y;
node_element.style.left = (_offset.x+p.x) + 'px';
node_element.style.top = (_offset.y+p.y) + 'px';
node_element.style.display = '';
node_element.style.visibility = 'visible';
if(!node.isroot && node.children.length>0){
expander_text = node.expanded?'-':'+';
p_expander= this.layout.get_expander_point(node);
expander.style.left = (_offset.x + p_expander.x) + 'px';
expander.style.top = (_offset.y + p_expander.y) + 'px';
expander.style.display = '';
expander.style.visibility = 'visible';
$t(expander,expander_text);
}
// hide expander while all children have been removed
if(!node.isroot && node.children.length==0){
expander.style.display = 'none';
expander.style.visibility = 'hidden';
}
}
},
reset_node_custom_style:function(node){
this._reset_node_custom_style(node._data.view.element, node.data);
},
_reset_node_custom_style:function(node_element, node_data){
if('background-color' in node_data){
node_element.style.backgroundColor = node_data['background-color'];
}
if('foreground-color' in node_data){
node_element.style.color = node_data['foreground-color'];
}
if('width' in node_data){
node_element.style.width = node_data['width']+'px';
}
if('height' in node_data){
node_element.style.height = node_data['height']+'px';
}
if('font-size' in node_data){
node_element.style.fontSize = node_data['font-size']+'px';
}
if('font-weight' in node_data){
node_element.style.fontWeight = node_data['font-weight'];
}
if('font-style' in node_data){
node_element.style.fontStyle = node_data['font-style'];
}
if('background-image' in node_data) {
var backgroundImage = node_data['background-image'];
if (backgroundImage.startsWith('data') && node_data['width'] && node_data['height']) {
var img = new Image();
img.onload = function() {
var c = $c('canvas');
c.width = node_element.clientWidth;
c.height = node_element.clientHeight;
var img = this;
if(c.getContext) {
var ctx = c.getContext('2d');
ctx.drawImage(img, 2, 2, node_element.clientWidth, node_element.clientHeight);
var scaledImageData = c.toDataURL();
node_element.style.backgroundImage='url('+scaledImageData+')';
}
};
img.src = backgroundImage;
} else {
node_element.style.backgroundImage='url('+backgroundImage+')';
}
node_element.style.backgroundSize='99%';
if('background-rotation' in node_data){
node_element.style.transform = 'rotate(' + node_data['background-rotation'] + 'deg)';
}
}
},
clear_node_custom_style:function(node){
var node_element = node._data.view.element;
node_element.style.backgroundColor = "";
node_element.style.color = "";
},
clear_lines:function(canvas_ctx){
var ctx = canvas_ctx || this.canvas_ctx;
jm.util.canvas.clear(ctx,0,0,this.size.w,this.size.h);
},
show_lines:function(canvas_ctx, fill_background){
this.clear_lines(canvas_ctx);
if (fill_background) {
// Draw background, use to save screenshot.
var ctx = canvas_ctx || this.canvas_ctx;
ctx.fillStyle = window.getComputedStyle(document.getElementById("jsmind_container"), null).backgroundColor.toString();
ctx.fillRect(0, 0, this.size.w, this.size.h);
}
var nodes = this.jm.mind.nodes;
var node = null;
var pin = null;
var pout = null;
var _offset = this.get_view_offset();
for(var nodeid in nodes){
node = nodes[nodeid];
if(!!node.isroot){continue;}
if(('visible' in node._data.layout) && !node._data.layout.visible){continue;}
pin = this.layout.get_node_point_in(node);
pout = this.layout.get_node_point_out(node.parent);
this.draw_line(pout,pin,_offset,canvas_ctx);
}
},
draw_line:function(pin,pout,offset,canvas_ctx){
var ctx = canvas_ctx || this.canvas_ctx;
ctx.strokeStyle = this.opts.line_color;
ctx.lineWidth = this.opts.line_width;
ctx.lineCap = 'round';
jm.util.canvas.bezierto(
ctx,
pin.x + offset.x,
pin.y + offset.y,
pout.x + offset.x,
pout.y + offset.y);
},
};
// shortcut provider
jm.shortcut_provider= function(jm, options){
this.jm = jm;
this.opts = options;
this.mapping = options.mapping;
this.handles = options.handles;
this._mapping = {};
};
jm.shortcut_provider.prototype = {
init : function(){
jm.util.dom.add_event($d,'keydown',this.handler.bind(this));
this.handles['addchild'] = this.handle_addchild;
this.handles['addbrother'] = this.handle_addbrother;
this.handles['editnode'] = this.handle_editnode;
this.handles['delnode'] = this.handle_delnode;
this.handles['toggle'] = this.handle_toggle;
this.handles['up'] = this.handle_up;
this.handles['down'] = this.handle_down;
this.handles['left'] = this.handle_left;
this.handles['right'] = this.handle_right;
for(var handle in this.mapping){
if(!!this.mapping[handle] && (handle in this.handles)){
this._mapping[this.mapping[handle]] = this.handles[handle];
}
}
},
enable_shortcut : function(){
this.opts.enable = true;
},
disable_shortcut : function(){
this.opts.enable = false;
},
handler : function(e){
if(this.jm.view.is_editing()){return;}
var evt = e || event;
if(!this.opts.enable){return true;}
var kc = evt.keyCode;
if(kc in this._mapping){
this._mapping[kc].call(this,this.jm,e);
}
},
handle_addchild: function(_jm,e){
var selected_node = _jm.get_selected_node();
if(!!selected_node){
var nodeid = jm.util.uuid.newid();
var node = _jm.add_node(selected_node, nodeid, 'Topic');
if(!!node){
_jm.select_node(nodeid);
_jm.begin_edit(nodeid);
}
}
},
handle_addbrother:function(_jm,e){
var selected_node = _jm.get_selected_node();
if(!!selected_node && !selected_node.isroot){
var nodeid = jm.util.uuid.newid();
var node = _jm.insert_node_after(selected_node, nodeid, 'Topic');
if(!!node){
_jm.select_node(nodeid);
_jm.begin_edit(nodeid);
}
}
},
handle_editnode:function(_jm,e){
var selected_node = _jm.get_selected_node();
if(!!selected_node){
_jm.begin_edit(selected_node);
}
},
handle_delnode:function(_jm,e){
var selected_node = _jm.get_selected_node();
if(!!selected_node && !selected_node.isroot){
_jm.select_node(selected_node.parent);
_jm.remove_node(selected_node);
}
},
handle_toggle:function(_jm,e){
var evt = e || event;
var selected_node = _jm.get_selected_node();
if(!!selected_node){
_jm.toggle_node(selected_node.id);
evt.stopPropagation();
evt.preventDefault();
}
},
handle_up:function(_jm,e){
var evt = e || event;
var selected_node = _jm.get_selected_node();
if(!!selected_node){
var up_node = _jm.find_node_before(selected_node);
if(!up_node){
var np = _jm.find_node_before(selected_node.parent);
if(!!np && np.children.length > 0){
up_node = np.children[np.children.length-1];
}
}
if(!!up_node){
_jm.select_node(up_node);
}
evt.stopPropagation();
evt.preventDefault();
}
},
handle_down:function(_jm,e){
var evt = e || event;
var selected_node = _jm.get_selected_node();
if(!!selected_node){
var down_node = _jm.find_node_after(selected_node);
if(!down_node){
var np = _jm.find_node_after(selected_node.parent);
if(!!np && np.children.length > 0){
down_node = np.children[0];
}
}
if(!!down_node){
_jm.select_node(down_node);
}
evt.stopPropagation();
evt.preventDefault();
}
},
handle_left:function(_jm,e){
this._handle_direction(_jm,e,jm.direction.left);
},
handle_right:function(_jm,e){
this._handle_direction(_jm,e,jm.direction.right);
},
_handle_direction:function(_jm,e,d){
var evt = e || event;
var selected_node = _jm.get_selected_node();
var node = null;
if(!!selected_node){
if(selected_node.isroot){
var c = selected_node.children;
var children = [];
for(var i=0;i<c.length;i++){
if(c[i].direction === d){
children.push(i)
}
}
node = c[children[Math.floor((children.length-1)/2)]];
}
else if(selected_node.direction === d){
var children = selected_node.children;
var childrencount = children.length;
if(childrencount > 0){
node = children[Math.floor((childrencount-1)/2)]
}
}else{
node = selected_node.parent;
}
if(!!node){
_jm.select_node(node);
}
evt.stopPropagation();
evt.preventDefault();
}
},
};
// plugin
jm.plugin = function(name,init){
this.name = name;
this.init = init;
};
jm.plugins = [];
jm.register_plugin = function(plugin){
if(plugin instanceof jm.plugin){
jm.plugins.push(plugin);
}
};
jm.init_plugins = function(sender){
$w.setTimeout(function(){
jm._init_plugins(sender);
},0);
};
jm._init_plugins = function(sender){
var l = jm.plugins.length;
var fn_init = null;
for(var i=0;i<l;i++){
fn_init = jm.plugins[i].init;
if(typeof fn_init === 'function'){
fn_init(sender);
}
}
};
// quick way
jm.show = function(options,mind){
var _jm = new jm(options);
_jm.show(mind);
return _jm;
};
// export jsmind
if (typeof module !== 'undefined' && typeof exports === 'object') {
module.exports = jm;
} else if (typeof define === 'function' && (define.amd || define.cmd)) {
define(function() { return jm; });
} else {
$w[__name__] = jm;
}
})(typeof window !== 'undefined' ? window : global);