xmpp.chapril.org-conversejs/src/converse-dragresize.js

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// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define, window, document */
(function (root, factory) {
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define(["converse-core",
"tpl!dragresize",
"converse-chatview",
"converse-muc", // XXX: would like to remove this
"converse-controlbox"
], factory);
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}(this, function (converse, tpl_dragresize) {
"use strict";
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const { _ } = converse.env;
function renderDragResizeHandles (_converse, view) {
const flyout = view.el.querySelector('.box-flyout');
const div = document.createElement('div');
div.innerHTML = tpl_dragresize();
flyout.insertBefore(
div,
flyout.firstChild
);
}
converse.plugins.add('converse-dragresize', {
/* Plugin dependencies are other plugins which might be
* overridden or relied upon, and therefore need to be loaded before
* this plugin.
*
* If the setting "strict_plugin_dependencies" is set to true,
* an error will be raised if the plugin is not found. By default it's
* false, which means these plugins are only loaded opportunistically.
*
* NB: These plugins need to have already been loaded via require.js.
*/
dependencies: ["converse-chatview", "converse-headline"],
enabled (_converse) {
return _converse.view_mode == 'overlayed';
},
overrides: {
// Overrides mentioned here will be picked up by converse.js's
// plugin architecture they will replace existing methods on the
// relevant objects or classes.
//
// New functions which don't exist yet can also be added.
registerGlobalEventHandlers () {
const that = this;
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document.addEventListener('mousemove', function (ev) {
if (!that.resizing || !that.allow_dragresize) { return true; }
ev.preventDefault();
that.resizing.chatbox.resizeChatBox(ev);
});
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document.addEventListener('mouseup', function (ev) {
if (!that.resizing || !that.allow_dragresize) { return true; }
ev.preventDefault();
const height = that.applyDragResistance(
that.resizing.chatbox.height,
that.resizing.chatbox.model.get('default_height')
);
const width = that.applyDragResistance(
that.resizing.chatbox.width,
that.resizing.chatbox.model.get('default_width')
);
if (that.connection.connected) {
that.resizing.chatbox.model.save({'height': height});
that.resizing.chatbox.model.save({'width': width});
} else {
that.resizing.chatbox.model.set({'height': height});
that.resizing.chatbox.model.set({'width': width});
}
that.resizing = null;
});
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return this.__super__.registerGlobalEventHandlers.apply(this, arguments);
},
ChatBox: {
initialize () {
const { _converse } = this.__super__;
const result = this.__super__.initialize.apply(this, arguments),
height = this.get('height'), width = this.get('width'),
save = this.get('id') === 'controlbox' ? this.set.bind(this) : this.save.bind(this);
save({
'height': _converse.applyDragResistance(height, this.get('default_height')),
'width': _converse.applyDragResistance(width, this.get('default_width')),
});
return result;
}
},
ChatBoxView: {
events: {
'mousedown .dragresize-top': 'onStartVerticalResize',
'mousedown .dragresize-left': 'onStartHorizontalResize',
'mousedown .dragresize-topleft': 'onStartDiagonalResize'
},
initialize () {
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window.addEventListener('resize', _.debounce(this.setDimensions.bind(this), 100));
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this.__super__.initialize.apply(this, arguments);
},
render () {
const result = this.__super__.render.apply(this, arguments);
renderDragResizeHandles(this.__super__._converse, this);
this.setWidth();
return result;
},
setWidth () {
// If a custom width is applied (due to drag-resizing),
// then we need to set the width of the .chatbox element as well.
if (this.model.get('width')) {
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this.el.style.width = this.model.get('width');
}
},
_show () {
this.initDragResize().setDimensions();
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this.__super__._show.apply(this, arguments);
},
initDragResize () {
/* Determine and store the default box size.
* We need this information for the drag-resizing feature.
*/
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const { _converse } = this.__super__,
flyout = this.el.querySelector('.box-flyout'),
style = window.getComputedStyle(flyout);
if (_.isUndefined(this.model.get('height'))) {
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const height = parseInt(style.height.replace(/px$/, ''), 10),
width = parseInt(style.width.replace(/px$/, ''), 10);
this.model.set('height', height);
this.model.set('default_height', height);
this.model.set('width', width);
this.model.set('default_width', width);
}
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const min_width = style['min-width'];
const min_height = style['min-height'];
this.model.set('min_width', min_width.endsWith('px') ? Number(min_width.replace(/px$/, '')) :0);
this.model.set('min_height', min_height.endsWith('px') ? Number(min_height.replace(/px$/, '')) :0);
// 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;
},
setDimensions () {
// Make sure the chat box has the right height and width.
this.adjustToViewport();
this.setChatBoxHeight(this.model.get('height'));
this.setChatBoxWidth(this.model.get('width'));
},
setChatBoxHeight (height) {
const { _converse } = this.__super__;
if (height) {
height = _converse.applyDragResistance(height, this.model.get('default_height'))+'px';
} else {
height = "";
}
const flyout_el = this.el.querySelector('.box-flyout');
if (!_.isNull(flyout_el)) {
flyout_el.style.height = height;
}
},
setChatBoxWidth (width) {
const { _converse } = this.__super__;
if (width) {
width = _converse.applyDragResistance(width, this.model.get('default_width'))+'px';
} else {
width = "";
}
this.el.style.width = width;
const flyout_el = this.el.querySelector('.box-flyout');
if (!_.isNull(flyout_el)) {
flyout_el.style.width = width;
}
},
adjustToViewport () {
/* Event handler called when viewport gets resized. We remove
* custom width/height from chat boxes.
*/
const viewport_width = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
const viewport_height = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
if (viewport_width <= 480) {
this.model.set('height', undefined);
this.model.set('width', undefined);
} else if (viewport_width <= this.model.get('width')) {
this.model.set('width', undefined);
} else if (viewport_height <= this.model.get('height')) {
this.model.set('height', undefined);
}
},
onStartVerticalResize (ev) {
const { _converse } = this.__super__;
if (!_converse.allow_dragresize) { return true; }
// Record element attributes for mouseMove().
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const flyout = this.el.querySelector('.box-flyout'),
style = window.getComputedStyle(flyout);
this.height = parseInt(style.height.replace(/px$/, ''), 10);
_converse.resizing = {
'chatbox': this,
'direction': 'top'
};
this.prev_pageY = ev.pageY;
},
onStartHorizontalResize (ev) {
const { _converse } = this.__super__;
if (!_converse.allow_dragresize) { return true; }
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const flyout = this.el.querySelector('.box-flyout'),
style = window.getComputedStyle(flyout);
this.width = parseInt(style.width.replace(/px$/, ''), 10);
_converse.resizing = {
'chatbox': this,
'direction': 'left'
};
this.prev_pageX = ev.pageX;
},
onStartDiagonalResize (ev) {
const { _converse } = this.__super__;
this.onStartHorizontalResize(ev);
this.onStartVerticalResize(ev);
_converse.resizing.direction = 'topleft';
},
resizeChatBox (ev) {
let diff;
const { _converse } = this.__super__;
if (_converse.resizing.direction.indexOf('top') === 0) {
diff = ev.pageY - this.prev_pageY;
if (diff) {
this.height = ((this.height-diff) > (this.model.get('min_height') || 0)) ? (this.height-diff) : this.model.get('min_height');
this.prev_pageY = ev.pageY;
this.setChatBoxHeight(this.height);
}
}
if (_.includes(_converse.resizing.direction, 'left')) {
diff = this.prev_pageX - ev.pageX;
if (diff) {
this.width = ((this.width+diff) > (this.model.get('min_width') || 0)) ? (this.width+diff) : this.model.get('min_width');
this.prev_pageX = ev.pageX;
this.setChatBoxWidth(this.width);
}
}
}
},
HeadlinesBoxView: {
events: {
'mousedown .dragresize-top': 'onStartVerticalResize',
'mousedown .dragresize-left': 'onStartHorizontalResize',
'mousedown .dragresize-topleft': 'onStartDiagonalResize'
},
initialize () {
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window.addEventListener('resize', _.debounce(this.setDimensions.bind(this), 100));
return this.__super__.initialize.apply(this, arguments);
},
render () {
const result = this.__super__.render.apply(this, arguments);
renderDragResizeHandles(this.__super__._converse, this);
this.setWidth();
return result;
}
},
ControlBoxView: {
events: {
'mousedown .dragresize-top': 'onStartVerticalResize',
'mousedown .dragresize-left': 'onStartHorizontalResize',
'mousedown .dragresize-topleft': 'onStartDiagonalResize'
},
initialize () {
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window.addEventListener('resize', _.debounce(this.setDimensions.bind(this), 100));
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this.__super__.initialize.apply(this, arguments);
},
render () {
const result = this.__super__.render.apply(this, arguments);
renderDragResizeHandles(this.__super__._converse, this);
this.setWidth();
return result;
},
renderLoginPanel () {
const result = this.__super__.renderLoginPanel.apply(this, arguments);
this.initDragResize().setDimensions();
return result;
},
renderContactsPanel () {
const result = this.__super__.renderContactsPanel.apply(this, arguments);
this.initDragResize().setDimensions();
return result;
}
},
ChatRoomView: {
events: {
'mousedown .dragresize-top': 'onStartVerticalResize',
'mousedown .dragresize-left': 'onStartHorizontalResize',
'mousedown .dragresize-topleft': 'onStartDiagonalResize'
},
initialize () {
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window.addEventListener('resize', _.debounce(this.setDimensions.bind(this), 100));
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this.__super__.initialize.apply(this, arguments);
},
render () {
const result = this.__super__.render.apply(this, arguments);
renderDragResizeHandles(this.__super__._converse, this);
this.setWidth();
return result;
}
}
},
initialize () {
/* The initialize function gets called as soon as the plugin is
* loaded by converse.js's plugin machinery.
*/
const { _converse } = this;
_converse.api.settings.update({
allow_dragresize: true,
});
_converse.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 (_.isUndefined(value)) {
return undefined;
} else if (_.isUndefined(default_value)) {
return value;
}
const resistance = 10;
if ((value !== default_value) &&
(Math.abs(value- default_value) < resistance)) {
return default_value;
}
return value;
};
}
});
}));