Enable diagonal and horizontal drag-resizing.

Only leftward resizing is allowed since there's no space for boxes to expand on the right.
Text area of chat boxes don't yet resize properly.
Didn't test at all on chat rooms.

converse.js

@@ -660,20 +660,22 @@
             }
         };
 
-        this.applyHeightResistance = function (height) {
-            /* This method applies some resistance/gravity around the
-             * "default_box_height". If "height" is close enough to
-             * default_box_height, then that is returned instead.
+        this.applyDragResistance = function (value, default_value) {
+            /* This method applies some resistance around the
+             * default_value. If value is close enough to
+             * default_value, then default_value is returned instead.
              */
-            if (typeof height === 'undefined') {
-                return converse.default_box_height;
+            if (typeof value === 'undefined') {
+                return undefined;
+            } else if (typeof default_value === 'undefined') {
+                return value;
             }
             var resistance = 10;
-            if ((height !== converse.default_box_height) &&
-                (Math.abs(height - converse.default_box_height) < resistance)) {
-                return converse.default_box_height;
+            if ((value !== default_value) &&
+                (Math.abs(value- default_value) < resistance)) {
+                return default_value;
             }
-            return height;
+            return value;
         };
 
         this.updateMsgCounter = function () {
@@ -743,21 +745,30 @@
             });
 
             $(document).on('mousemove', function (ev) {
-                if (!this.resized_chatbox || !this.allow_dragresize) { return true; }
+                if (!this.resizing || !this.allow_dragresize) { return true; }
                 ev.preventDefault();
-                this.resized_chatbox.resizeChatBox(ev);
+                this.resizing.chatbox.resizeChatBox(ev);
             }.bind(this));
 
             $(document).on('mouseup', function (ev) {
-                if (!this.resized_chatbox || !this.allow_dragresize) { return true; }
+                if (!this.resizing || !this.allow_dragresize) { return true; }
                 ev.preventDefault();
-                var height = this.applyHeightResistance(this.resized_chatbox.height);
+                var height = this.applyDragResistance(
+                        this.resizing.chatbox.height,
+                        this.resizing.chatbox.model.get('default_height')
+                );
+                var width = this.applyDragResistance(
+                        this.resizing.chatbox.width,
+                        this.resizing.chatbox.model.get('default_width')
+                );
                 if (this.connection.connected) {
-                    this.resized_chatbox.model.save({'height': height});
+                    this.resizing.chatbox.model.save({'height': height});
+                    this.resizing.chatbox.model.save({'width': width});
                 } else {
-                    this.resized_chatbox.model.set({'height': height});
+                    this.resizing.chatbox.model.set({'height': height});
+                    this.resizing.chatbox.model.set({'width': width});
                 }
-                this.resized_chatbox = null;
+                this.resizing = null;
             }.bind(this));
 
             $(window).on("blur focus", function (ev) {
@@ -948,31 +959,31 @@
         this.ChatBox = Backbone.Model.extend({
 
             initialize: function () {
-                var height = this.get('height');
+                var height = this.get('height'),
+                    width = this.get('width'),
+                    settings = {
+                    'height': converse.applyDragResistance(height, this.get('default_height')),
+                    'width': converse.applyDragResistance(width, this.get('default_width')),
+                    'num_unread': this.get('num_unread') || 0
+                };
                 if (this.get('box_id') !== 'controlbox') {
                     this.messages = new converse.Messages();
                     this.messages.browserStorage = new Backbone.BrowserStorage[converse.storage](
                         b64_sha1('converse.messages'+this.get('jid')+converse.bare_jid));
-                    this.save({
+                    this.save(_.extend(settings, {
                         // The chat_state will be set to ACTIVE once the chat box is opened
                         // and we listen for change:chat_state, so shouldn't set it to ACTIVE here.
                         'chat_state': undefined,
                         'box_id' : b64_sha1(this.get('jid')),
-                        'height': height ? converse.applyHeightResistance(height) : undefined,
                         'minimized': this.get('minimized') || false,
-                        'num_unread': this.get('num_unread') || 0,
                         'otr_status': this.get('otr_status') || UNENCRYPTED,
                         'time_minimized': this.get('time_minimized') || moment(),
                         'time_opened': this.get('time_opened') || moment().valueOf(),
                         'url': '',
                         'user_id' : Strophe.getNodeFromJid(this.get('jid'))
-                    });
+                    }));
                 } else {
-                    this.set({
-                        'height': height ? converse.applyHeightResistance(height) : undefined,
-                        'time_opened': moment(0).valueOf(),
-                        'num_unread': this.get('num_unread') || 0
-                    });
+                    this.set(_.extend(settings, { 'time_opened': moment(0).valueOf() }));
                 }
             },
 
@@ -1204,7 +1215,9 @@
                 'click .end-otr': 'endOTR',
                 'click .auth-otr': 'authOTR',
                 'click .toggle-call': 'toggleCall',
-                'mousedown .dragresize': 'onDragResizeStart'
+                'mousedown .dragresize-top': 'onStartVerticalResize',
+                'mousedown .dragresize-left': 'onStartHorizontalResize',
+                'mousedown .dragresize-topleft': 'onStartDiagonalResize'
             },
 
             initialize: function () {
@@ -1244,8 +1257,10 @@
                             )
                         )
                     );
-                if (typeof this.model.get('height') == 'undefined') {
-                    this.model.set('height', this.$el.find('.box-flyout').height());
+                if (this.model.get('width')) {
+                    // If a custom width is applied (due to drag-resizing),
+                    // then we need to set the width of the .chatbox element as well.
+                    this.$el.css('width', this.model.get('width'));
                 }
                 this.$content = this.$el.find('.chat-content');
                 this.renderToolbar().renderAvatar();
@@ -1323,18 +1338,25 @@
                 return this;
             },
 
-            initHeight: function () {
-                if (typeof this.model.get('height') == 'undefined') {
-                    this.model.set('height', this.$el.find('.box-flyout').height());
-                }
-                return this;
-            },
-
             initDragResize: function () {
-                this.initHeight();
-                this.prev_pageY = 0; // To store last known mouse position
+                /* Determine and store the default box size.
+                 * We need this information for the drag-resizing feature.
+                 */
+                if (typeof this.model.get('height') == 'undefined') {
+                    var $flyout = this.$el.find('.box-flyout');
+                    var height = $flyout.height();
+                    var width = $flyout.width();
+                    this.model.set('height', height);
+                    this.model.set('default_height', height);
+                    this.model.set('width', width);
+                    this.model.set('default_width', width);
+                }
+                // Initialize last known mouse position
+                this.prev_pageY = 0;
+                this.prev_pageX = 0;
                 if (converse.connection.connected) {
                     this.height = this.model.get('height');
+                    this.width = this.model.get('width');
                 }
                 return this;
             },
@@ -1707,26 +1729,66 @@
                 }
             },
 
-            onDragResizeStart: function (ev) {
+            onStartVerticalResize: function (ev) {
                 if (!converse.allow_dragresize) { return true; }
                 // Record element attributes for mouseMove().
                 this.height = this.$el.children('.box-flyout').height();
-                converse.resized_chatbox = this;
+                converse.resizing = {
+                    'chatbox': this,
+                    'direction': 'top'
+                };
                 this.prev_pageY = ev.pageY;
             },
 
+            onStartHorizontalResize: function (ev) {
+                if (!converse.allow_dragresize) { return true; }
+                this.width = this.$el.children('.box-flyout').width();
+                converse.resizing = {
+                    'chatbox': this,
+                    'direction': 'left'
+                };
+                this.prev_pageX = ev.pageX;
+            },
+
+            onStartDiagonalResize: function (ev) {
+                this.onStartHorizontalResize(ev);
+                this.onStartVerticalResize(ev);
+                converse.resizing.direction = 'topleft';
+            },
+
             setChatBoxHeight: function (height) {
                 if (!this.model.get('minimized')) {
-                    this.$el.children('.box-flyout')[0].style.height = converse.applyHeightResistance(height)+'px';
+                    height = converse.applyDragResistance(height, this.model.get('default_height'))+'px';
+                    this.$el.children('.box-flyout')[0].style.height = height;
+                }
+            },
+
+            setChatBoxWidth: function (width) {
+                if (!this.model.get('minimized')) {
+                    width = converse.applyDragResistance(width, this.model.get('default_width'))+'px';
+                    this.$el[0].style.width = width;
+                    this.$el.children('.box-flyout')[0].style.width = width;
                 }
             },
 
             resizeChatBox: function (ev) {
-                var diff = ev.pageY - this.prev_pageY;
-                if (!diff) { return; }
+                var diff;
+                if (converse.resizing.direction.indexOf('top') === 0) {
+                    diff = ev.pageY - this.prev_pageY;
+                    if (diff) {
                         this.height -= diff;
                         this.prev_pageY = ev.pageY;
                         this.setChatBoxHeight(this.height);
+                    }
+                }
+                if (converse.resizing.direction.indexOf('left') !== -1) {
+                    diff = this.prev_pageX - ev.pageX;
+                    if (diff) {
+                        this.width += diff;
+                        this.prev_pageX = ev.pageX;
+                        this.setChatBoxWidth(this.width);
+                    }
+                }
             },
 
             clearMessages: function (ev) {
@@ -2027,14 +2089,15 @@
                 if (this.$el.is(':visible') && this.$el.css('opacity') == "1") {
                     return this.focus();
                 }
+                this.initDragResize();
                 this.$el.fadeIn(function () {
                     if (typeof callback == "function") {
                         callback.apply(this, arguments);
                     }
                     if (converse.connection.connected) {
-                        // Without a connection, we haven't yet initialized localstorage
+                        // Without a connection, we haven't yet initialized
+                        // localstorage
                         this.model.save();
-                        this.initDragResize();
                     }
                     this.setChatState(ACTIVE);
                     this.scrollDown().focus();
@@ -2389,7 +2452,9 @@
             events: {
                 'click a.close-chatbox-button': 'close',
                 'click ul#controlbox-tabs li a': 'switchTab',
-                'mousedown .dragresize': 'onDragResizeStart'
+                'mousedown .dragresize-top': 'onStartVerticalResize',
+                'mousedown .dragresize-left': 'onStartHorizontalResize',
+                'mousedown .dragresize-topleft': 'onStartDiagonalResize'
             },
 
             initialize: function () {
@@ -2748,7 +2813,9 @@
                 'click .toggle-call': 'toggleCall',
                 'click .toggle-participants a': 'toggleOccupants',
                 'keypress textarea.chat-textarea': 'keyPressed',
-                'mousedown .dragresize': 'onDragResizeStart'
+                'mousedown .dragresize-top': 'onStartVerticalResize',
+                'mousedown .dragresize-left': 'onStartHorizontalResize',
+                'mousedown .dragresize-topleft': 'onStartDiagonalResize'
             },
             is_chatroom: true,
 

css/converse.css

@@ -1279,14 +1279,30 @@
   #conversejs .minimized-chats-flyout.minimized {
     height: auto; }
   #conversejs .dragresize {
-    position: absolute;
-    width: 200px;
-    height: 5px;
     background: transparent;
     border: 0;
+    margin: 0;
+    position: absolute;
     top: 0;
-    margin-left: 0;
+    z-index: 20;
+  }
+  #conversejs .dragresize-top {
         cursor: n-resize;
-    z-index: 20; }
+        height: 5px;
+        width: 100%;
+}
+  #conversejs .dragresize-left {
+        cursor: w-resize;
+        width: 5px;
+        height: 100%;
+        left: 0;
+}
+  #conversejs .dragresize-topleft {
+        cursor: nw-resize;
+        width: 15px;
+        height: 15px;
+        top: 0;
+        left: 0;
+}
 
 /*# sourceMappingURL=converse.css.map */

mockup/chatroom.html

@@ -21,7 +21,7 @@
 
 <div id="conversejs">
     <div class="chatroom" id="6d8627960a0cb066d9216742f3edccc3dbbf85a9">
-        <div class="box-flyout">
+        <div class="flyout box-flyout">
             <div class="dragresize dragresize-tm"></div>
             <div class="chat-head chat-head-chatroom">
                 <a class="close-chatbox-button icon-close"></a>

mockup/controlbox.html

@@ -26,8 +26,8 @@
     </a>
 
     <div id="controlbox" class="chatbox" style="opacity: 1; display: inline;">
-        <div class="box-flyout">
-            <div class="dragresize dragresize-tm"></div>
+        <div class="flyout box-flyout">
+            <div class="dragresize"></div>
             <div class="chat-head controlbox-head">
                 <ul id="controlbox-tabs">
                     <li><a class="current" href="#login">Sign in</a></li>
@@ -56,8 +56,8 @@
     </div>
 
     <div id="controlbox" class="chatbox" style="opacity: 1; display: inline;">
-        <div class="box-flyout">
-            <div class="dragresize dragresize-tm"></div>
+        <div class="flyout box-flyout">
+            <div class="dragresize"></div>
             <div class="chat-head controlbox-head">
                 <ul id="controlbox-tabs">
                     <li><a class="s current" href="#users">Contacts</a></li>

mockup/index.html

@@ -26,8 +26,8 @@
     </a>
 
     <div id="controlbox" class="chatbox" style="opacity: 1; display: inline;">
-        <div class="box-flyout">
-            <div class="dragresize dragresize-tm"></div>
+        <div class="flyout box-flyout">
+            <div class="dragresize"></div>
             <div class="chat-head controlbox-head">
                 <ul id="controlbox-tabs">
                     <li><a class="current" href="#login-dialog">Sign in</a></li>
@@ -62,8 +62,8 @@
     </div>
 
     <div id="controlbox" class="chatbox" style="opacity: 1; display: inline;">
-        <div class="box-flyout">
-            <div class="dragresize dragresize-tm"></div>
+        <div class="flyout box-flyout">
+            <div class="dragresize"></div>
             <div class="chat-head controlbox-head">
                 <ul id="controlbox-tabs">
                     <li><a class="s current" href="#users">Contacts</a></li>
@@ -281,8 +281,8 @@ JID: rassie.erasmus@localhost">Rassie Erasmus</span>
     </div>
 
     <div class="chatbox" id="37c0c87392010303765fe36b05c0967d62c6b70f">
-        <div class="box-flyout">
-            <div class="dragresize dragresize-tm"></div>
+        <div class="flyout box-flyout">
+            <div class="dragresize"></div>
             <div class="chat-head chat-head-chatbox">
                 <a class="close-chatbox-button icon-close"></a>
                 <a class="toggle-chatbox-button icon-minus"></a>
@@ -360,8 +360,8 @@ JID: rassie.erasmus@localhost">Rassie Erasmus</span>
     </div>
 
     <div class="chatroom" id="4a77380f1cd9d392627b0e1469688f9ca44e9392">
-        <div class="box-flyout">
-            <div class="dragresize dragresize-tm"></div>
+        <div class="flyout box-flyout">
+            <div class="dragresize"></div>
             <div class="chat-head chat-head-chatroom">
                 <a class="close-chatbox-button icon-close"></a>
                 <a class="toggle-chatbox-button icon-minus"></a>
@@ -440,8 +440,8 @@ JID: rassie.erasmus@localhost">Rassie Erasmus</span>
     </div>
 
     <div class="chatroom" id="6d8627960a0cb066d9216742f3edccc3dbbf85a9">
-        <div class="box-flyout">
-            <div class="dragresize dragresize-tm"></div>
+        <div class="flyout box-flyout">
+            <div class="dragresize"></div>
             <div class="chat-head chat-head-chatroom">
                 <a class="close-chatbox-button icon-close"></a>
                 <a class="toggle-chatbox-button icon-minus"></a>
@@ -468,7 +468,7 @@ JID: rassie.erasmus@localhost">Rassie Erasmus</span>
             Minimized <span id="minimized-count">(0)</span>
             <span class="unread-message-count" href="#" style="display:block">322</span>
         </a>
-        <div class="minimized-chats-flyout">
+        <div class="flyout minimized-chats-flyout">
             <div class="chat-head chat-head-chatroom">
                 <a class="close-chatbox-button icon-close"></a>
                 <a class="chat-head-message-count" href="#" style="display:block">3</a>

mockup/minimal.html

@@ -26,8 +26,8 @@
     </a>
 
     <div id="controlbox" class="chatbox" style="display: none;">
-        <div class="box-flyout">
-            <div class="dragresize dragresize-tm"></div>
+        <div class="flyout box-flyout">
+            <div class="dragresize"></div>
             <div class="chat-head controlbox-head">
                 <ul id="controlbox-tabs">
                     <li><a class="current" href="#login">Sign in</a></li>
@@ -50,7 +50,7 @@
             <span>Minimized <span id="minimized-count">(0)</span>
             <span class="unread-message-count" href="#" style="display:block">322</span>
         </a>
-        <div class="minimized-chats-flyout">
+        <div class="flyout minimized-chats-flyout">
             <div class="chat-head chat-head-chatroom">
                 <a class="close-chatbox-button icon-close"></a>
                 <a class="chat-head-message-count" href="#">3</a>

sass/_core.scss

@@ -1504,48 +1504,60 @@
     }
   }
 
-  .minimized-chats-flyout,
-  .box-flyout {
+  .flyout {
     border-radius: 4px;
-    bottom: 6px;
+    bottom: $bottom-gutter-height;
     box-shadow: 1px 3px 5px 3px rgba(0, 0, 0, 0.4);
     display: block;
+    position: absolute;
+  }
+
+  .box-flyout {
     height: $chat-height;
     @media screen and (max-width: $mobile-landscape-length) {
       height: $mobile-chat-height;
     }
-    position: absolute;
   }
 
   .minimized-chats-flyout {
-    border-radius: 4px;
-    bottom: $bottom-gutter-height;
-    box-shadow: 1px 3px 5px 3px rgba(0, 0, 0, 0.4);
-    display: block;
-    position: absolute;
     height: auto;
-    width: 130px;
+    width: $minimized-chats-width;;
     .chat-head-chatroom,
     .chat-head {
       border-radius: 4px;
-      width: 130px;
+      width: $minimized-chats-width;
       height: 35px;
       margin-bottom: 1px;
     }
-  }
-  .minimized-chats-flyout.minimized {
+    &.minimized {
       height: auto;
     }
+  }
 
   .dragresize {
-    position: absolute;
-    width: $chat-width;
-    height: 5px;
     background: transparent;
     border: 0;
+    margin: 0;
+    position: absolute;
     top: 0;
-    margin-left: 0;
-    cursor: n-resize;
     z-index: 20;
+    &-top {
+        cursor: n-resize;
+        height: 5px;
+        width: 100%;
+    }
+    &-left {
+        cursor: w-resize;
+        width: 5px;
+        height: 100%;
+        left: 0;
+    }
+    &-topleft {
+        cursor: nw-resize;
+        width: 15px;
+        height: 15px;
+        top: 0;
+        left: 0;
+    }
   }
 }

sass/_variables.scss

@@ -33,6 +33,7 @@
   $chat-width: 200px !default;
   $chat-height: 400px !default;
   $chat-gutter: 7px !default;
+  $minimized-chats-width: 130px !default;
 
   $mobile-chat-width: 100% !default;
   $mobile-chat-height: 400px !default;

src/templates/chatbox.html

-<div class="box-flyout" {[ if (height) { ]} style="height: {{height}}px" {[ } ]}>
-    <div class="dragresize"></div>
+<div class="box-flyout" style="{[ if (height) { ]} height: {{height}}px; {[ } ]} {[ if (width) { ]} width: {{width}}px; {[ } ]}">
+    <div class="dragresize dragresize-top"></div>
+    <div class="dragresize dragresize-topleft"></div>
+    <div class="dragresize dragresize-left"></div>
     <div class="chat-head chat-head-chatbox">
         <a class="close-chatbox-button icon-close"></a>
         <a class="toggle-chatbox-button icon-minus"></a>

src/templates/chatroom.html

-<div class="box-flyout" {[ if (height) { ]} style="height: {{height}}px" {[ } ]}>
-    <div class="dragresize"></div>
+<div class="box-flyout" style="{[ if (height) { ]} height: {{height}}px; {[ } ]} {[ if (width) { ]} width: {{width}}px; {[ } ]}">
+    <div class="dragresize dragresize-top"></div>
+    <div class="dragresize dragresize-topleft"></div>
+    <div class="dragresize dragresize-left"></div>
     <div class="chat-head chat-head-chatroom">
         <a class="close-chatbox-button icon-close"></a>
         <a class="toggle-chatbox-button icon-minus"></a>

src/templates/controlbox.html

-<div class="box-flyout" {[ if (height) { ]} style="height: {{height}}px" {[ } ]}>
-    <div class="dragresize"></div>
+<div class="box-flyout" style="{[ if (height) { ]} height: {{height}}px; {[ } ]} {[ if (width) { ]} width: {{width}}px; {[ } ]}">
+    <div class="dragresize dragresize-top"></div>
+    <div class="dragresize dragresize-topleft"></div>
+    <div class="dragresize dragresize-left"></div>
     <div class="chat-head controlbox-head">
         <ul id="controlbox-tabs"></ul>
         <a class="close-chatbox-button icon-close"></a>