X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/db6d2feee32d100fb893b389421bda2fd65a89cd..d9f6aab0486a302a211c6d9c77394daa501c7216:/project/static/js/autocompletion.js?ds=sidebyside

diff --git a/project/static/js/autocompletion.js b/project/static/js/autocompletion.js
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+++ b/project/static/js/autocompletion.js
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+/**
+ * Autocompletion class
+ * 
+ * An auto completion box appear while you're writing. It's possible to force it to appear with Ctrl+Space short cut
+ * 
+ * Loaded as a plugin inside editArea (everything made here could have been made in the plugin directory)
+ * But is definitly linked to syntax selection (no need to do 2 different files for color and auto complete for each syntax language)
+ * and add a too important feature that many people would miss if included as a plugin
+ * 
+ * - init param: autocompletion_start
+ * - Button name: "autocompletion"
+ */  
+
+var EditArea_autocompletion= {
+	
+	/**
+	 * Get called once this file is loaded (editArea still not initialized)
+	 *
+	 * @return nothing	 
+	 */	 	 	
+	init: function(){	
+		//	alert("test init: "+ this._someInternalFunction(2, 3));
+		
+		if(editArea.settings["autocompletion"])
+			this.enabled= true;
+		else
+			this.enabled= false;
+		this.current_word		= false;
+		this.shown				= false;
+		this.selectIndex		= -1;
+		this.forceDisplay		= false;
+		this.isInMiddleWord		= false;
+		this.autoSelectIfOneResult	= false;
+		this.delayBeforeDisplay	= 100;
+		this.checkDelayTimer	= false;
+		this.curr_syntax_str	= '';
+		
+		this.file_syntax_datas	= {};
+	}
+	/**
+	 * Returns the HTML code for a specific control string or false if this plugin doesn't have that control.
+	 * A control can be a button, select list or any other HTML item to present in the EditArea user interface.
+	 * Language variables such as {$lang_somekey} will also be replaced with contents from
+	 * the language packs.
+	 * 
+	 * @param {string} ctrl_name: the name of the control to add	  
+	 * @return HTML code for a specific control or false.
+	 * @type string	or boolean
+	 */	
+	/*,get_control_html: function(ctrl_name){
+		switch( ctrl_name ){
+			case 'autocompletion':
+				// Control id, button img, command
+				return parent.editAreaLoader.get_button_html('autocompletion_but', 'autocompletion.gif', 'toggle_autocompletion', false, this.baseURL);
+				break;
+		}
+		return false;
+	}*/
+	/**
+	 * Get called once EditArea is fully loaded and initialised
+	 *	 
+	 * @return nothing
+	 */	 	 	
+	,onload: function(){ 
+		if(this.enabled)
+		{
+			var icon= document.getElementById("autocompletion");
+			if(icon)
+				editArea.switchClassSticky(icon, 'editAreaButtonSelected', true);
+		}
+		
+		this.container	= document.createElement('div');
+		this.container.id	= "auto_completion_area";
+		editArea.container.insertBefore( this.container, editArea.container.firstChild );
+		
+		// add event detection for hiding suggestion box
+		parent.editAreaLoader.add_event( document, "click", function(){ editArea.plugins['autocompletion']._hide();} );
+		parent.editAreaLoader.add_event( editArea.textarea, "blur", function(){ editArea.plugins['autocompletion']._hide();} );
+		
+	}
+	
+	/**
+	 * Is called each time the user touch a keyboard key.
+	 *	 
+	 * @param (event) e: the keydown event
+	 * @return true - pass to next handler in chain, false - stop chain execution
+	 * @type boolean	 
+	 */
+	,onkeydown: function(e){
+		if(!this.enabled)
+			return true;
+			
+		if (EA_keys[e.keyCode])
+			letter=EA_keys[e.keyCode];
+		else
+			letter=String.fromCharCode(e.keyCode);	
+		// shown
+		if( this._isShown() )
+		{	
+			// if escape, hide the box
+			if(letter=="Esc")
+			{
+				this._hide();
+				return false;
+			}
+			// Enter
+			else if( letter=="Entrer")
+			{
+				var as	= this.container.getElementsByTagName('A');
+				// select a suggested entry
+				if( this.selectIndex >= 0 && this.selectIndex < as.length )
+				{
+					as[ this.selectIndex ].onmousedown();
+					return false
+				}
+				// simply add an enter in the code
+				else
+				{
+					this._hide();
+					return true;
+				}
+			}
+			else if( letter=="Tab" || letter=="Down")
+			{
+				this._selectNext();
+				return false;
+			}
+			else if( letter=="Up")
+			{
+				this._selectBefore();
+				return false;
+			}
+		}
+		// hidden
+		else
+		{
+			
+		}
+		
+		// show current suggestion list and do autoSelect if possible (no matter it's shown or hidden)
+		if( letter=="Space" && CtrlPressed(e) )
+		{
+			//parent.console.log('SHOW SUGGEST');
+			this.forceDisplay 			= true;
+			this.autoSelectIfOneResult	= true;
+			this._checkLetter();
+			return false;
+		}
+		
+		// wait a short period for check that the cursor isn't moving
+		setTimeout("editArea.plugins['autocompletion']._checkDelayAndCursorBeforeDisplay();", editArea.check_line_selection_timer +5 );
+		this.checkDelayTimer = false;
+		return true;
+	}	
+	/**
+	 * Executes a specific command, this function handles plugin commands.
+	 *
+	 * @param {string} cmd: the name of the command being executed
+	 * @param {unknown} param: the parameter of the command	 
+	 * @return true - pass to next handler in chain, false - stop chain execution
+	 * @type boolean	
+	 */
+	,execCommand: function(cmd, param){
+		switch( cmd ){
+			case 'toggle_autocompletion':
+				var icon= document.getElementById("autocompletion");
+				if(!this.enabled)
+				{
+					if(icon != null){
+						editArea.restoreClass(icon);
+						editArea.switchClassSticky(icon, 'editAreaButtonSelected', true);
+					}
+					this.enabled= true;
+				}
+				else
+				{
+					this.enabled= false;
+					if(icon != null)
+						editArea.switchClassSticky(icon, 'editAreaButtonNormal', false);
+				}
+				return true;
+		}
+		return true;
+	}
+	,_checkDelayAndCursorBeforeDisplay: function()
+	{
+		this.checkDelayTimer = setTimeout("if(editArea.textarea.selectionStart == "+ editArea.textarea.selectionStart +") EditArea_autocompletion._checkLetter();",  this.delayBeforeDisplay - editArea.check_line_selection_timer - 5 );
+	}
+	// hide the suggested box
+	,_hide: function(){
+		this.container.style.display="none";
+		this.selectIndex	= -1;
+		this.shown	= false;
+		this.forceDisplay	= false;
+		this.autoSelectIfOneResult = false;
+	}
+	// display the suggested box
+	,_show: function(){
+		if( !this._isShown() )
+		{
+			this.container.style.display="block";
+			this.selectIndex	= -1;
+			this.shown	= true;
+		}
+	}
+	// is the suggested box displayed?
+	,_isShown: function(){
+		return this.shown;
+	}
+	// setter and getter
+	,_isInMiddleWord: function( new_value ){
+		if( typeof( new_value ) == "undefined" )
+			return this.isInMiddleWord;
+		else
+			this.isInMiddleWord	= new_value;
+	}
+	// select the next element in the suggested box
+	,_selectNext: function()
+	{
+		var as	= this.container.getElementsByTagName('A');
+		
+		// clean existing elements
+		for( var i=0; i<as.length; i++ )
+		{
+			if( as[i].className )
+				as[i].className	= as[i].className.replace(/ focus/g, '');
+		}
+		
+		this.selectIndex++;	
+		this.selectIndex	= ( this.selectIndex >= as.length || this.selectIndex < 0 ) ? 0 : this.selectIndex;
+		as[ this.selectIndex ].className	+= " focus";
+	}
+	// select the previous element in the suggested box
+	,_selectBefore: function()
+	{
+		var as	= this.container.getElementsByTagName('A');
+		
+		// clean existing elements
+		for( var i=0; i<as.length; i++ )
+		{
+			if( as[i].className )
+				as[i].className	= as[ i ].className.replace(/ focus/g, '');
+		}
+		
+		this.selectIndex--;
+		
+		this.selectIndex	= ( this.selectIndex >= as.length || this.selectIndex < 0 ) ? as.length-1 : this.selectIndex;
+		as[ this.selectIndex ].className	+= " focus";
+	}
+	,_select: function( content )
+	{
+		cursor_forced_position	= content.indexOf( '{@}' );
+		content	= content.replace(/{@}/g, '' );
+		editArea.getIESelection();
+		
+		// retrive the number of matching characters
+		var start_index	= Math.max( 0, editArea.textarea.selectionEnd - content.length );
+		
+		line_string	= 	editArea.textarea.value.substring( start_index, editArea.textarea.selectionEnd + 1);
+		limit	= line_string.length -1;
+		nbMatch	= 0;
+		for( i =0; i<limit ; i++ )
+		{
+			if( line_string.substring( limit - i - 1, limit ) == content.substring( 0, i + 1 ) )
+				nbMatch = i + 1;
+		}
+		// if characters match, we should include them in the selection that will be replaced
+		if( nbMatch > 0 )
+			parent.editAreaLoader.setSelectionRange(editArea.id, editArea.textarea.selectionStart - nbMatch , editArea.textarea.selectionEnd);
+		
+		parent.editAreaLoader.setSelectedText(editArea.id, content );
+		range= parent.editAreaLoader.getSelectionRange(editArea.id);
+		
+		if( cursor_forced_position != -1 )
+			new_pos	= range["end"] - ( content.length-cursor_forced_position );
+		else
+			new_pos	= range["end"];	
+		parent.editAreaLoader.setSelectionRange(editArea.id, new_pos, new_pos);
+		this._hide();
+	}
+	
+	
+	/**
+	 * Parse the AUTO_COMPLETION part of syntax definition files
+	 */
+	,_parseSyntaxAutoCompletionDatas: function(){
+		//foreach syntax loaded
+		for(var lang in parent.editAreaLoader.load_syntax)
+		{
+			if(!parent.editAreaLoader.syntax[lang]['autocompletion'])	// init the regexp if not already initialized
+			{
+				parent.editAreaLoader.syntax[lang]['autocompletion']= {};
+				// the file has auto completion datas
+				if(parent.editAreaLoader.load_syntax[lang]['AUTO_COMPLETION'])
+				{
+					// parse them
+					for(var i in parent.editAreaLoader.load_syntax[lang]['AUTO_COMPLETION'])
+					{
+						datas	= parent.editAreaLoader.load_syntax[lang]['AUTO_COMPLETION'][i];
+						tmp	= {};
+						if(datas["CASE_SENSITIVE"]!="undefined" && datas["CASE_SENSITIVE"]==false)
+							tmp["modifiers"]="i";
+						else
+							tmp["modifiers"]="";
+						tmp["prefix_separator"]= datas["REGEXP"]["prefix_separator"];
+						tmp["match_prefix_separator"]= new RegExp( datas["REGEXP"]["prefix_separator"] +"$", tmp["modifiers"]);
+						tmp["match_word"]= new RegExp("(?:"+ datas["REGEXP"]["before_word"] +")("+ datas["REGEXP"]["possible_words_letters"] +")$", tmp["modifiers"]);
+						tmp["match_next_letter"]= new RegExp("^("+ datas["REGEXP"]["letter_after_word_must_match"] +")$", tmp["modifiers"]);
+						tmp["keywords"]= {};
+						//console.log( datas["KEYWORDS"] );
+						for( var prefix in datas["KEYWORDS"] )
+						{
+							tmp["keywords"][prefix]= {
+								prefix: prefix,
+								prefix_name: prefix,
+								prefix_reg: new RegExp("(?:"+ parent.editAreaLoader.get_escaped_regexp( prefix ) +")(?:"+ tmp["prefix_separator"] +")$", tmp["modifiers"] ),
+								datas: []
+							};
+							for( var j=0; j<datas["KEYWORDS"][prefix].length; j++ )
+							{
+								tmp["keywords"][prefix]['datas'][j]= {
+									is_typing: datas["KEYWORDS"][prefix][j][0],
+									// if replace with is empty, replace with the is_typing value
+									replace_with: datas["KEYWORDS"][prefix][j][1] ? datas["KEYWORDS"][prefix][j][1].replace('§', datas["KEYWORDS"][prefix][j][0] ) : '',
+									comment: datas["KEYWORDS"][prefix][j][2] ? datas["KEYWORDS"][prefix][j][2] : '' 
+								};
+								
+								// the replace with shouldn't be empty
+								if( tmp["keywords"][prefix]['datas'][j]['replace_with'].length == 0 )
+									tmp["keywords"][prefix]['datas'][j]['replace_with'] = tmp["keywords"][prefix]['datas'][j]['is_typing'];
+								
+								// if the comment is empty, display the replace_with value
+								if( tmp["keywords"][prefix]['datas'][j]['comment'].length == 0 )
+									 tmp["keywords"][prefix]['datas'][j]['comment'] = tmp["keywords"][prefix]['datas'][j]['replace_with'].replace(/{@}/g, '' );
+							}
+								
+						}
+						tmp["max_text_length"]= datas["MAX_TEXT_LENGTH"];
+						parent.editAreaLoader.syntax[lang]['autocompletion'][i]	= tmp;
+					}
+				}
+			}
+		}
+	}
+	
+	,_checkLetter: function(){
+		// check that syntax hasn't changed
+		if( this.curr_syntax_str != editArea.settings['syntax'] )
+		{
+			if( !parent.editAreaLoader.syntax[editArea.settings['syntax']]['autocompletion'] )
+				this._parseSyntaxAutoCompletionDatas();
+			this.curr_syntax= parent.editAreaLoader.syntax[editArea.settings['syntax']]['autocompletion'];
+			this.curr_syntax_str = editArea.settings['syntax'];
+			//console.log( this.curr_syntax );
+		}
+		
+		if( editArea.is_editable )
+		{
+			time=new Date;
+			t1= time.getTime();
+			editArea.getIESelection();
+			this.selectIndex	= -1;
+			start=editArea.textarea.selectionStart;
+			var str	= editArea.textarea.value;
+			var results= [];
+			
+			
+			for(var i in this.curr_syntax)
+			{
+				var last_chars	= str.substring(Math.max(0, start-this.curr_syntax[i]["max_text_length"]), start);
+				var matchNextletter	= str.substring(start, start+1).match( this.curr_syntax[i]["match_next_letter"]);
+				// if not writting in the middle of a word or if forcing display
+				if( matchNextletter || this.forceDisplay )
+				{
+					// check if the last chars match a separator
+					var match_prefix_separator = last_chars.match(this.curr_syntax[i]["match_prefix_separator"]);
+			
+					// check if it match a possible word
+					var match_word= last_chars.match(this.curr_syntax[i]["match_word"]);
+					
+					//console.log( match_word );
+					if( match_word )
+					{
+						var begin_word= match_word[1];
+						var match_curr_word= new RegExp("^"+ parent.editAreaLoader.get_escaped_regexp( begin_word ), this.curr_syntax[i]["modifiers"]);
+						//console.log( match_curr_word );
+						for(var prefix in this.curr_syntax[i]["keywords"])
+						{
+						//	parent.console.log( this.curr_syntax[i]["keywords"][prefix] );
+							for(var j=0; j<this.curr_syntax[i]["keywords"][prefix]['datas'].length; j++)
+							{
+						//		parent.console.log( this.curr_syntax[i]["keywords"][prefix]['datas'][j]['is_typing'] );
+								// the key word match or force display 
+								if( this.curr_syntax[i]["keywords"][prefix]['datas'][j]['is_typing'].match(match_curr_word) )
+								{
+							//		parent.console.log('match');
+									hasMatch = false;
+									var before = last_chars.substr( 0, last_chars.length - begin_word.length );
+									
+									// no prefix to match => it's valid
+									if( !match_prefix_separator && this.curr_syntax[i]["keywords"][prefix]['prefix'].length == 0 )
+									{
+										if( ! before.match( this.curr_syntax[i]["keywords"][prefix]['prefix_reg'] ) )
+											hasMatch = true;
+									}
+									// we still need to check the prefix if there is one
+									else if( this.curr_syntax[i]["keywords"][prefix]['prefix'].length > 0 )
+									{
+										if( before.match( this.curr_syntax[i]["keywords"][prefix]['prefix_reg'] ) )
+											hasMatch = true;
+									}
+									
+									if( hasMatch )
+										results[results.length]= [ this.curr_syntax[i]["keywords"][prefix], this.curr_syntax[i]["keywords"][prefix]['datas'][j] ];
+								}	
+							}
+						}
+					}
+					// it doesn't match any possible word but we want to display something
+					// we'll display to list of all available words
+					else if( this.forceDisplay || match_prefix_separator )
+					{
+						for(var prefix in this.curr_syntax[i]["keywords"])
+						{
+							for(var j=0; j<this.curr_syntax[i]["keywords"][prefix]['datas'].length; j++)
+							{
+								hasMatch = false;
+								// no prefix to match => it's valid
+								if( !match_prefix_separator && this.curr_syntax[i]["keywords"][prefix]['prefix'].length == 0 )
+								{
+									hasMatch	= true;
+								}
+								// we still need to check the prefix if there is one
+								else if( match_prefix_separator && this.curr_syntax[i]["keywords"][prefix]['prefix'].length > 0 )
+								{
+									var before = last_chars; //.substr( 0, last_chars.length );
+									if( before.match( this.curr_syntax[i]["keywords"][prefix]['prefix_reg'] ) )
+										hasMatch = true;
+								}	
+									
+								if( hasMatch )
+									results[results.length]= [ this.curr_syntax[i]["keywords"][prefix], this.curr_syntax[i]["keywords"][prefix]['datas'][j] ];	
+							}
+						}
+					}
+				}
+			}
+			
+			// there is only one result, and we can select it automatically
+			if( results.length == 1 && this.autoSelectIfOneResult )
+			{
+			//	console.log( results );
+				this._select( results[0][1]['replace_with'] );
+			}
+			else if( results.length == 0 )
+			{
+				this._hide();
+			}
+			else
+			{
+				// build the suggestion box content
+				var lines=[];
+				for(var i=0; i<results.length; i++)
+				{
+					var line= "<li><a href=\"#\" class=\"entry\" onmousedown=\"EditArea_autocompletion._select('"+ results[i][1]['replace_with'].replace(new RegExp('"', "g"), "&quot;") +"');return false;\">"+ results[i][1]['comment'];
+					if(results[i][0]['prefix_name'].length>0)
+						line+='<span class="prefix">'+ results[i][0]['prefix_name'] +'</span>';
+					line+='</a></li>';
+					lines[lines.length]=line;
+				}
+				// sort results
+				this.container.innerHTML		= '<ul>'+ lines.sort().join('') +'</ul>';
+				
+				var cursor	= _$("cursor_pos");
+				this.container.style.top		= ( cursor.cursor_top + editArea.lineHeight ) +"px";
+				this.container.style.left		= ( cursor.cursor_left + 8 ) +"px";
+				this._show();
+			}
+				
+			this.autoSelectIfOneResult = false;
+			time=new Date;
+			t2= time.getTime();
+		
+			//parent.console.log( begin_word +"\n"+ (t2-t1) +"\n"+ html );
+		}
+	}
+};
+
+// Load as a plugin
+editArea.settings['plugins'][ editArea.settings['plugins'].length ] = 'autocompletion';
+editArea.add_plugin('autocompletion', EditArea_autocompletion);
\ No newline at end of file