135 lines
		
	
	
		
			5.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
			
		
		
	
	
			135 lines
		
	
	
		
			5.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
| /*
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|  Copyright 2014 matrix.org
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|  
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|  Licensed under the Apache License, Version 2.0 (the "License");
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|  you may not use this file except in compliance with the License.
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|  You may obtain a copy of the License at
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|  
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|  http://www.apache.org/licenses/LICENSE-2.0
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|  
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|  Unless required by applicable law or agreed to in writing, software
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|  distributed under the License is distributed on an "AS IS" BASIS,
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|  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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|  See the License for the specific language governing permissions and
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|  limitations under the License.
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|  */
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| 
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| 'use strict';
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| 
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| angular.module('RoomController')
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| .directive('tabComplete', ['$timeout', function ($timeout) {
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|     return function (scope, element, attrs) {
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|         element.bind("keydown keypress", function (event) {
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|             // console.log("event: " + event.which);
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|             if (event.which === 9) {
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|                 if (!scope.tabCompleting) { // cache our starting text
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|                     // console.log("caching " + element[0].value);
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|                     scope.tabCompleteOriginal = element[0].value;
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|                     scope.tabCompleting = true;
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|                 }
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|                 
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|                 if (event.shiftKey) {
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|                     scope.tabCompleteIndex--;
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|                     if (scope.tabCompleteIndex < 0) {
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|                         scope.tabCompleteIndex = 0;
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|                     }
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|                 }
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|                 else {
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|                     scope.tabCompleteIndex++;
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|                 }
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|                 
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|                 var searchIndex = 0;
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|                 var targetIndex = scope.tabCompleteIndex;
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|                 var text = scope.tabCompleteOriginal;
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|                 
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|                 // console.log("targetIndex: " + targetIndex + ", text=" + text);
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|                                     
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|                 // FIXME: use the correct regexp to recognise userIDs
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|                 var search = /@?([a-zA-Z0-9_\-:\.]+)$/.exec(text);
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|                 if (targetIndex === 0) {
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|                     element[0].value = text;
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|                 }
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|                 else if (search && search[1]) {
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|                     // console.log("search found: " + search);
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|                     var expansion;
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|                     
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|                     // FIXME: could do better than linear search here
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|                     angular.forEach(scope.members, function(item, name) {
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|                         if (item.displayname && searchIndex < targetIndex) {
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|                             if (item.displayname.toLowerCase().indexOf(search[1].toLowerCase()) === 0) {
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|                                 expansion = item.displayname;
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|                                 searchIndex++;
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|                             }
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|                         }
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|                     });
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|                     if (searchIndex < targetIndex) { // then search raw mxids
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|                         angular.forEach(scope.members, function(item, name) {
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|                             if (searchIndex < targetIndex) {
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|                                 if (name.toLowerCase().indexOf(search[1].toLowerCase()) === 1) {
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|                                     expansion = name;
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|                                     searchIndex++;
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|                                 }
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|                             }
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|                         });
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|                     }
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|                     
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|                     if (searchIndex === targetIndex) {
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|                         // xchat-style tab complete
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|                         if (search[0].length === text.length)
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|                             expansion += " : ";
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|                         else
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|                             expansion += " ";
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|                         element[0].value = text.replace(/@?([a-zA-Z0-9_\-:\.]+)$/, expansion);
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|                         // cancel blink
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|                         element[0].className = "";                        
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|                     }
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|                     else {
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|                         // console.log("wrapped!");
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|                         element[0].className = "blink"; // XXX: slightly naughty to bypass angular
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|                         $timeout(function() {
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|                              element[0].className = "";
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|                         }, 150);
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|                         element[0].value = text;
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|                         scope.tabCompleteIndex = 0;
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|                     }
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|                 }
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|                 else {
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|                     scope.tabCompleteIndex = 0;
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|                 }
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|                 event.preventDefault();
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|             }
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|             else if (event.which !== 16 && scope.tabCompleting) {
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|                 scope.tabCompleting = false;
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|                 scope.tabCompleteIndex = 0;
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|             }
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|         });
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|     };
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| }])
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| 
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| // A directive to anchor the scroller position at the bottom when the browser is resizing.
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| // When the screen resizes, the bottom of the element remains the same, not the top.
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| .directive('keepScroll', ['$window', function($window) {
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|     return {
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|         link: function(scope, elem, attrs) {
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| 
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|             scope.windowHeight = $window.innerHeight;
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| 
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|             // Listen to window size change
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|             angular.element($window).bind('resize', function() {
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| 
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|                 // If the scroller is scrolled to the bottom, there is nothing to do.
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|                 // The browser will move it as expected
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|                 if (elem.scrollTop() + elem.height() !== elem[0].scrollHeight) {
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|                     // Else, move the scroller position according to the window height change delta
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|                     var windowHeightDelta = $window.innerHeight - scope.windowHeight;
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|                     elem.scrollTop(elem.scrollTop() - windowHeightDelta);
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|                 }
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| 
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|                 // Store the new window height for the next screen size change
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|                 scope.windowHeight = $window.innerHeight;
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|             });
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|         }
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|     };
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| }]);
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| 
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