pkg/dartdoc/lib/src/client/dropdown.dart - sdk.git - Git at Google

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.

 part of client_live_nav;

 List libraryList;
 InputElement searchInput;
 DivElement dropdown;

 /**
  * Update the search drop down based on the current search text.
  */
 updateDropDown(Event event) {
   if (libraryList == null) return;
   if (searchInput == null) return;
   if (dropdown == null) return;

   var results = <Result>[];
   String text = searchInput.value;
   if (text == currentSearchText) {
     return;
   }
   if (text.isEmpty) {
     updateResults(text, results);
     hideDropDown();
     return;
   }
   if (text.contains('.')) {
     // Search type members.
     String typeText = text.substring(0, text.indexOf('.'));
     String memberText = text.substring(text.indexOf('.') + 1);

     if (typeText.isEmpty && memberText.isEmpty) {
       // Don't search on '.'.
     } else if (typeText.isEmpty) {
       // Search text is of the form '.id' => Look up members.
       matchAllMembers(results, memberText);
     } else if (memberText.isEmpty) {
       // Search text is of the form 'Type.' => Look up members in 'Type'.
       matchAllMembersInType(results, typeText, memberText);
     } else {
       // Search text is of the form 'Type.id' => Look up member 'id' in 'Type'.
       matchMembersInType(results, text, typeText, memberText);
     }
   } else {
     // Search all entities.
     var searchText = new SearchText(text);
     for (Map<String,dynamic> library in libraryList)  {
       matchLibrary(results, searchText, library);
       matchLibraryMembers(results, searchText, library);
       matchTypes(results, searchText, library);
     }
   }
   var elements = <Element>[];
   var table = new TableElement();
   table.classes.add('drop-down-table');
   elements.add(table);

   if (results.isEmpty) {
     var row = table.insertRow(0);
     row.innerHTML = "<tr><td>No matches found for '$text'.</td></tr>";
   } else {
     results.sort(resultComparator);

     var count = 0;
     for (Result result in results) {
       result.addRow(table);
       if (++count >= 10) {
         break;
       }
     }
     if (results.length >= 10) {
       var row = table.insertRow(table.rows.length);
       row.innerHTML = '<tr><td>+ ${results.length-10} more.</td></tr>';
       results = results.getRange(0, 10);
     }
   }
   dropdown.elements = elements;
   updateResults(text, results);
   showDropDown();
 }

 void matchAllMembers(List<Result> results, String memberText) {
   var searchText = new SearchText(memberText);
   for (Map<String,dynamic> library in libraryList)  {
     String libraryName = library[NAME];
     if (library.containsKey(TYPES)) {
       for (Map<String,dynamic> type in library[TYPES]) {
         String typeName = type[NAME];
         if (type.containsKey(MEMBERS)) {
           for (Map<String,dynamic> member in type[MEMBERS]) {
             StringMatch memberMatch = obtainMatch(searchText, member[NAME]);
             if (memberMatch != null) {
               results.add(new Result(memberMatch, member[KIND],
                   getTypeMemberUrl(libraryName, typeName, member),
                   library: libraryName, type: typeName, args: type[ARGS],
                   noargs: member[NO_PARAMS]));
             }
           }
         }
       }
     }
   }
 }

 void matchAllMembersInType(List<Result> results,
                            String typeText, String memberText) {
   var searchText = new SearchText(typeText);
   var emptyText = new SearchText(memberText);
   for (Map<String,dynamic> library in libraryList)  {
     String libraryName = library[NAME];
     if (library.containsKey(TYPES)) {
       for (Map<String,dynamic> type in library[TYPES]) {
         String typeName = type[NAME];
         StringMatch typeMatch = obtainMatch(searchText, typeName);
         if (typeMatch != null) {
           if (type.containsKey(MEMBERS)) {
             for (Map<String,dynamic> member in type[MEMBERS]) {
               StringMatch memberMatch = obtainMatch(emptyText,
                   member[NAME]);
               results.add(new Result(memberMatch, member[KIND],
                   getTypeMemberUrl(libraryName, typeName, member),
                   library: libraryName, prefix: typeMatch,
                   noargs: member[NO_PARAMS]));
             }
           }
         }
       }
     }
   }
 }

 void matchMembersInType(List<Result> results,
                         String text, String typeText, String memberText) {
   var searchText = new SearchText(text);
   var typeSearchText = new SearchText(typeText);
   var memberSearchText = new SearchText(memberText);
   for (Map<String,dynamic> library in libraryList)  {
     String libraryName = library[NAME];
     if (library.containsKey(TYPES)) {
       for (Map<String,dynamic> type in library[TYPES]) {
         String typeName = type[NAME];
         StringMatch typeMatch = obtainMatch(typeSearchText, typeName);
         if (typeMatch != null) {
           if (type.containsKey(MEMBERS)) {
             for (Map<String,dynamic> member in type[MEMBERS]) {
               // Check for constructor match.
               StringMatch constructorMatch = obtainMatch(searchText,
                   member[NAME]);
               if (constructorMatch != null) {
                 results.add(new Result(constructorMatch, member[KIND],
                     getTypeMemberUrl(libraryName, typeName, member),
                     library: libraryName, noargs: member[NO_PARAMS]));
               } else {
                 // Try member match.
                 StringMatch memberMatch = obtainMatch(memberSearchText,
                     member[NAME]);
                 if (memberMatch != null) {
                   results.add(new Result(memberMatch, member[KIND],
                       getTypeMemberUrl(libraryName, typeName, member),
                       library: libraryName, prefix: typeMatch,
                       args: type[ARGS], noargs: member[NO_PARAMS]));
                 }
               }
             }
           }
         }
       }
     }
   }
 }

 void matchLibrary(List<Result> results, SearchText searchText, Map library) {
   String libraryName = library[NAME];
   StringMatch libraryMatch = obtainMatch(searchText, libraryName);
   if (libraryMatch != null) {
     results.add(new Result(libraryMatch, LIBRARY,
                            getLibraryUrl(libraryName)));
   }
 }

 void matchLibraryMembers(List<Result> results, SearchText searchText,
                           Map library) {
   if (library.containsKey(MEMBERS)) {
     String libraryName = library[NAME];
     for (Map<String,dynamic> member in library[MEMBERS]) {
       StringMatch memberMatch = obtainMatch(searchText, member[NAME]);
       if (memberMatch != null) {
         results.add(new Result(memberMatch, member[KIND],
                                getLibraryMemberUrl(libraryName, member),
                                library: libraryName, noargs: member[NO_PARAMS]));
       }
     }
   }
 }

 void matchTypes(List<Result> results, SearchText searchText,
                 Map library) {
   if (library.containsKey(TYPES)) {
     String libraryName = library[NAME];
     for (Map<String,dynamic> type in library[TYPES]) {
       String typeName = type[NAME];
       matchType(results, searchText, libraryName, type);
       matchTypeMembers(results, searchText, libraryName, type);
     }
   }
 }

 void matchType(List<Result> results, SearchText searchText,
                String libraryName, Map type) {
   String typeName = type[NAME];
   StringMatch typeMatch = obtainMatch(searchText, typeName);
   if (typeMatch != null) {
     results.add(new Result(typeMatch, type[KIND],
                            getTypeUrl(libraryName, type),
                            library: libraryName, args: type[ARGS]));
   }
 }

 void matchTypeMembers(List<Result> results, SearchText searchText,
                       String libraryName, Map type) {
   if (type.containsKey(MEMBERS)) {
     String typeName = type[NAME];
     for (Map<String,dynamic> member in type[MEMBERS]) {
       StringMatch memberMatch = obtainMatch(searchText, member[NAME]);
       if (memberMatch != null) {
         results.add(new Result(memberMatch, member[KIND],
             getTypeMemberUrl(libraryName, typeName, member),
             library: libraryName, type: typeName, args: type[ARGS],
             noargs: member[NO_PARAMS]));
       }
     }
   }
 }

 String currentSearchText;
 Result _currentResult;
 List<Result> currentResults = const <Result>[];

 void updateResults(String searchText, List<Result> results) {
   currentSearchText = searchText;
   currentResults = results;
   if (currentResults.isEmpty) {
     _currentResultIndex = -1;
     currentResult = null;
   } else {
     _currentResultIndex = 0;
     currentResult = currentResults[0];
   }
 }

 int _currentResultIndex;

 void set currentResultIndex(int index) {
   if (index < -1) {
     return;
   }
   if (index >= currentResults.length) {
     return;
   }
   if (index != _currentResultIndex) {
     _currentResultIndex = index;
     if (index >= 0) {
       currentResult = currentResults[_currentResultIndex];
     } else {
       currentResult = null;
     }
   }
 }

 int get currentResultIndex => _currentResultIndex;

 void set currentResult(Result result) {
   if (_currentResult != result) {
     if (_currentResult != null) {
       _currentResult.row.classes.remove('drop-down-link-select');
     }
     _currentResult = result;
     if (_currentResult != null) {
       _currentResult.row.classes.add('drop-down-link-select');
     }
   }
 }

 Result get currentResult => _currentResult;

 /**
  * Navigate the search drop down using up/down inside the search field. Follow
  * the result link on enter.
  */
 void handleUpDown(KeyboardEvent event) {
   if (event.keyIdentifier == KeyName.UP) {
     currentResultIndex--;
     event.preventDefault();
   } else if (event.keyIdentifier == KeyName.DOWN) {
     currentResultIndex++;
     event.preventDefault();
   } else if (event.keyIdentifier == KeyName.ENTER) {
     if (currentResult != null) {
       window.location.href = currentResult.url;
       event.preventDefault();
       hideDropDown();
     }
   }
 }

 /** Show the search drop down unless there are no current results. */
 void showDropDown() {
   if (currentResults.isEmpty) {
     hideDropDown();
   } else {
     dropdown.style.visibility = 'visible';
   }
 }

 /** Used to prevent hiding the drop down when it is clicked. */
 bool hideDropDownSuspend = false;

 /** Hide the search drop down unless suspended. */
 void hideDropDown() {
   if (hideDropDownSuspend) return;

   dropdown.style.visibility = 'hidden';
 }

 /** Activate search on Ctrl+3 and S. */
 void shortcutHandler(KeyboardEvent event) {
   if (event.keyCode == 0x33/* 3 */ && event.ctrlKey) {
     searchInput.focus();
     event.preventDefault();
   } else if (event.target != searchInput && event.keyCode == 0x53/* S */) {
     // Allow writing 's' in the search input.
     searchInput.focus();
     event.preventDefault();
   }
 }

 /**
  * Setup window shortcuts.
  */
 void setupShortcuts() {
   window.on.keyDown.add(shortcutHandler);
 }

 /** Setup search hooks. */
 void setupSearch(var libraries) {
   libraryList = libraries;
   searchInput = query('#q');
   dropdown = query('#drop-down');

   searchInput.on.keyDown.add(handleUpDown);
   searchInput.on.keyUp.add(updateDropDown);
   searchInput.on.change.add(updateDropDown);
   searchInput.on.reset.add(updateDropDown);
   searchInput.on.focus.add((event) => showDropDown());
   searchInput.on.blur.add((event) => hideDropDown());
 }
	// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
	// for details. All rights reserved. Use of this source code is governed by a
	// BSD-style license that can be found in the LICENSE file.

	part of client_live_nav;

	List libraryList;
	InputElement searchInput;
	DivElement dropdown;

	/**
	* Update the search drop down based on the current search text.
	*/
	updateDropDown(Event event) {
	if (libraryList == null) return;
	if (searchInput == null) return;
	if (dropdown == null) return;

	var results = <Result>[];
	String text = searchInput.value;
	if (text == currentSearchText) {
	return;
	}
	if (text.isEmpty) {
	updateResults(text, results);
	hideDropDown();
	return;
	}
	if (text.contains('.')) {
	// Search type members.
	String typeText = text.substring(0, text.indexOf('.'));
	String memberText = text.substring(text.indexOf('.') + 1);

	if (typeText.isEmpty && memberText.isEmpty) {
	// Don't search on '.'.
	} else if (typeText.isEmpty) {
	// Search text is of the form '.id' => Look up members.
	matchAllMembers(results, memberText);
	} else if (memberText.isEmpty) {
	// Search text is of the form 'Type.' => Look up members in 'Type'.
	matchAllMembersInType(results, typeText, memberText);
	} else {
	// Search text is of the form 'Type.id' => Look up member 'id' in 'Type'.
	matchMembersInType(results, text, typeText, memberText);
	}
	} else {
	// Search all entities.
	var searchText = new SearchText(text);
	for (Map<String,dynamic> library in libraryList) {
	matchLibrary(results, searchText, library);
	matchLibraryMembers(results, searchText, library);
	matchTypes(results, searchText, library);
	}
	}
	var elements = <Element>[];
	var table = new TableElement();
	table.classes.add('drop-down-table');
	elements.add(table);

	if (results.isEmpty) {
	var row = table.insertRow(0);
	row.innerHTML = "<tr><td>No matches found for '$text'.</td></tr>";
	} else {
	results.sort(resultComparator);

	var count = 0;
	for (Result result in results) {
	result.addRow(table);
	if (++count >= 10) {
	break;
	}
	}
	if (results.length >= 10) {
	var row = table.insertRow(table.rows.length);
	row.innerHTML = '<tr><td>+ ${results.length-10} more.</td></tr>';
	results = results.getRange(0, 10);
	}
	}
	dropdown.elements = elements;
	updateResults(text, results);
	showDropDown();
	}

	void matchAllMembers(List<Result> results, String memberText) {
	var searchText = new SearchText(memberText);
	for (Map<String,dynamic> library in libraryList) {
	String libraryName = library[NAME];
	if (library.containsKey(TYPES)) {
	for (Map<String,dynamic> type in library[TYPES]) {
	String typeName = type[NAME];
	if (type.containsKey(MEMBERS)) {
	for (Map<String,dynamic> member in type[MEMBERS]) {
	StringMatch memberMatch = obtainMatch(searchText, member[NAME]);
	if (memberMatch != null) {
	results.add(new Result(memberMatch, member[KIND],
	getTypeMemberUrl(libraryName, typeName, member),
	library: libraryName, type: typeName, args: type[ARGS],
	noargs: member[NO_PARAMS]));
	}
	}
	}
	}
	}
	}
	}

	void matchAllMembersInType(List<Result> results,
	String typeText, String memberText) {
	var searchText = new SearchText(typeText);
	var emptyText = new SearchText(memberText);
	for (Map<String,dynamic> library in libraryList) {
	String libraryName = library[NAME];
	if (library.containsKey(TYPES)) {
	for (Map<String,dynamic> type in library[TYPES]) {
	String typeName = type[NAME];
	StringMatch typeMatch = obtainMatch(searchText, typeName);
	if (typeMatch != null) {
	if (type.containsKey(MEMBERS)) {
	for (Map<String,dynamic> member in type[MEMBERS]) {
	StringMatch memberMatch = obtainMatch(emptyText,
	member[NAME]);
	results.add(new Result(memberMatch, member[KIND],
	getTypeMemberUrl(libraryName, typeName, member),
	library: libraryName, prefix: typeMatch,
	noargs: member[NO_PARAMS]));
	}
	}
	}
	}
	}
	}
	}

	void matchMembersInType(List<Result> results,
	String text, String typeText, String memberText) {
	var searchText = new SearchText(text);
	var typeSearchText = new SearchText(typeText);
	var memberSearchText = new SearchText(memberText);
	for (Map<String,dynamic> library in libraryList) {
	String libraryName = library[NAME];
	if (library.containsKey(TYPES)) {
	for (Map<String,dynamic> type in library[TYPES]) {
	String typeName = type[NAME];
	StringMatch typeMatch = obtainMatch(typeSearchText, typeName);
	if (typeMatch != null) {
	if (type.containsKey(MEMBERS)) {
	for (Map<String,dynamic> member in type[MEMBERS]) {
	// Check for constructor match.
	StringMatch constructorMatch = obtainMatch(searchText,
	member[NAME]);
	if (constructorMatch != null) {
	results.add(new Result(constructorMatch, member[KIND],
	getTypeMemberUrl(libraryName, typeName, member),
	library: libraryName, noargs: member[NO_PARAMS]));
	} else {
	// Try member match.
	StringMatch memberMatch = obtainMatch(memberSearchText,
	member[NAME]);
	if (memberMatch != null) {
	results.add(new Result(memberMatch, member[KIND],
	getTypeMemberUrl(libraryName, typeName, member),
	library: libraryName, prefix: typeMatch,
	args: type[ARGS], noargs: member[NO_PARAMS]));
	}
	}
	}
	}
	}
	}
	}
	}
	}

	void matchLibrary(List<Result> results, SearchText searchText, Map library) {
	String libraryName = library[NAME];
	StringMatch libraryMatch = obtainMatch(searchText, libraryName);
	if (libraryMatch != null) {
	results.add(new Result(libraryMatch, LIBRARY,
	getLibraryUrl(libraryName)));
	}
	}

	void matchLibraryMembers(List<Result> results, SearchText searchText,
	Map library) {
	if (library.containsKey(MEMBERS)) {
	String libraryName = library[NAME];
	for (Map<String,dynamic> member in library[MEMBERS]) {
	StringMatch memberMatch = obtainMatch(searchText, member[NAME]);
	if (memberMatch != null) {
	results.add(new Result(memberMatch, member[KIND],
	getLibraryMemberUrl(libraryName, member),
	library: libraryName, noargs: member[NO_PARAMS]));
	}
	}
	}
	}

	void matchTypes(List<Result> results, SearchText searchText,
	Map library) {
	if (library.containsKey(TYPES)) {
	String libraryName = library[NAME];
	for (Map<String,dynamic> type in library[TYPES]) {
	String typeName = type[NAME];
	matchType(results, searchText, libraryName, type);
	matchTypeMembers(results, searchText, libraryName, type);
	}
	}
	}

	void matchType(List<Result> results, SearchText searchText,
	String libraryName, Map type) {
	String typeName = type[NAME];
	StringMatch typeMatch = obtainMatch(searchText, typeName);
	if (typeMatch != null) {
	results.add(new Result(typeMatch, type[KIND],
	getTypeUrl(libraryName, type),
	library: libraryName, args: type[ARGS]));
	}
	}

	void matchTypeMembers(List<Result> results, SearchText searchText,
	String libraryName, Map type) {
	if (type.containsKey(MEMBERS)) {
	String typeName = type[NAME];
	for (Map<String,dynamic> member in type[MEMBERS]) {
	StringMatch memberMatch = obtainMatch(searchText, member[NAME]);
	if (memberMatch != null) {
	results.add(new Result(memberMatch, member[KIND],
	getTypeMemberUrl(libraryName, typeName, member),
	library: libraryName, type: typeName, args: type[ARGS],
	noargs: member[NO_PARAMS]));
	}
	}
	}
	}

	String currentSearchText;
	Result _currentResult;
	List<Result> currentResults = const <Result>[];

	void updateResults(String searchText, List<Result> results) {
	currentSearchText = searchText;
	currentResults = results;
	if (currentResults.isEmpty) {
	_currentResultIndex = -1;
	currentResult = null;
	} else {
	_currentResultIndex = 0;
	currentResult = currentResults[0];
	}
	}

	int _currentResultIndex;

	void set currentResultIndex(int index) {
	if (index < -1) {
	return;
	}
	if (index >= currentResults.length) {
	return;
	}
	if (index != _currentResultIndex) {
	_currentResultIndex = index;
	if (index >= 0) {
	currentResult = currentResults[_currentResultIndex];
	} else {
	currentResult = null;
	}
	}
	}

	int get currentResultIndex => _currentResultIndex;

	void set currentResult(Result result) {
	if (_currentResult != result) {
	if (_currentResult != null) {
	_currentResult.row.classes.remove('drop-down-link-select');
	}
	_currentResult = result;
	if (_currentResult != null) {
	_currentResult.row.classes.add('drop-down-link-select');
	}
	}
	}

	Result get currentResult => _currentResult;

	/**
	* Navigate the search drop down using up/down inside the search field. Follow
	* the result link on enter.
	*/
	void handleUpDown(KeyboardEvent event) {
	if (event.keyIdentifier == KeyName.UP) {
	currentResultIndex--;
	event.preventDefault();
	} else if (event.keyIdentifier == KeyName.DOWN) {
	currentResultIndex++;
	event.preventDefault();
	} else if (event.keyIdentifier == KeyName.ENTER) {
	if (currentResult != null) {
	window.location.href = currentResult.url;
	event.preventDefault();
	hideDropDown();
	}
	}
	}

	/** Show the search drop down unless there are no current results. */
	void showDropDown() {
	if (currentResults.isEmpty) {
	hideDropDown();
	} else {
	dropdown.style.visibility = 'visible';
	}
	}

	/** Used to prevent hiding the drop down when it is clicked. */
	bool hideDropDownSuspend = false;

	/** Hide the search drop down unless suspended. */
	void hideDropDown() {
	if (hideDropDownSuspend) return;

	dropdown.style.visibility = 'hidden';
	}

	/** Activate search on Ctrl+3 and S. */
	void shortcutHandler(KeyboardEvent event) {
	if (event.keyCode == 0x33/* 3 */ && event.ctrlKey) {
	searchInput.focus();
	event.preventDefault();
	} else if (event.target != searchInput && event.keyCode == 0x53/* S */) {
	// Allow writing 's' in the search input.
	searchInput.focus();
	event.preventDefault();
	}
	}

	/**
	* Setup window shortcuts.
	*/
	void setupShortcuts() {
	window.on.keyDown.add(shortcutHandler);
	}

	/** Setup search hooks. */
	void setupSearch(var libraries) {
	libraryList = libraries;
	searchInput = query('#q');
	dropdown = query('#drop-down');

	searchInput.on.keyDown.add(handleUpDown);
	searchInput.on.keyUp.add(updateDropDown);
	searchInput.on.change.add(updateDropDown);
	searchInput.on.reset.add(updateDropDown);
	searchInput.on.focus.add((event) => showDropDown());
	searchInput.on.blur.add((event) => hideDropDown());
	}