mirror of
https://github.com/flarum/framework.git
synced 2024-12-12 06:03:39 +08:00
266 lines
9.9 KiB
JavaScript
266 lines
9.9 KiB
JavaScript
import Ember from 'ember';
|
||
|
||
import { PositionEnum } from '../controllers/composer';
|
||
import ActionButton from '../components/ui/controls/action-button';
|
||
import TaggedArray from '../utils/tagged-array';
|
||
|
||
var $ = Ember.$;
|
||
|
||
export default Ember.View.extend(Ember.Evented, {
|
||
classNames: ['composer'],
|
||
classNameBindings: [
|
||
'minimized',
|
||
'fullscreen',
|
||
'active'
|
||
],
|
||
|
||
position: Ember.computed.alias('controller.position'),
|
||
visible: Ember.computed.alias('controller.visible'),
|
||
normal: Ember.computed.alias('controller.normal'),
|
||
minimized: Ember.computed.alias('controller.minimized'),
|
||
fullscreen: Ember.computed.alias('controller.fullscreen'),
|
||
|
||
// Calculate the composer's current height, based on the intended height
|
||
// (which is set when the resizing handle is dragged), and the composer's
|
||
// current state.
|
||
computedHeight: function() {
|
||
if (this.get('minimized')) {
|
||
return '';
|
||
} else if (this.get('fullscreen')) {
|
||
return $(window).height();
|
||
} else {
|
||
return Math.max(200, Math.min(this.get('height'), $(window).height() - $('#header').outerHeight()));
|
||
}
|
||
}.property('height', 'minimized', 'fullscreen'),
|
||
|
||
didInsertElement: function() {
|
||
var view = this;
|
||
var controller = this.get('controller');
|
||
|
||
// Hide the composer to begin with.
|
||
this.set('height', this.$().height());
|
||
this.$().hide();
|
||
|
||
// If the composer is minimized, allow the user to click anywhere on
|
||
// it to show it.
|
||
this.$('.composer-content').click(function() {
|
||
if (view.get('minimized')) {
|
||
controller.send('show');
|
||
}
|
||
});
|
||
|
||
// Modulate the view's active property/class according to the focus
|
||
// state of any inputs.
|
||
this.$().on('focus', ':input', function() {
|
||
view.set('active', true);
|
||
}).on('blur', ':input', function() {
|
||
view.set('active', false);
|
||
});
|
||
|
||
// Focus on the first input when the controller wants to focus.
|
||
controller.on('focus', this, this.focus);
|
||
|
||
// Set up the handle so that the composer can be resized.
|
||
$(window).on('resize', {view: this}, this.windowWasResized).resize();
|
||
|
||
var dragData = {view: this};
|
||
this.$('.composer-handle').css('cursor', 'row-resize')
|
||
.mousedown(function(e) {
|
||
dragData.mouseStart = e.clientY;
|
||
dragData.heightStart = view.$().height();
|
||
dragData.handle = $(this);
|
||
$('body').css('cursor', 'row-resize');
|
||
}).bind('dragstart mousedown', function(e) {
|
||
e.preventDefault();
|
||
});
|
||
|
||
$(document)
|
||
.on('mousemove', dragData, this.mouseWasMoved)
|
||
.on('mouseup', dragData, this.mouseWasReleased);
|
||
|
||
// When the escape key is pressed on any inputs, close the composer.
|
||
this.$().on('keydown', ':input', 'esc', function() {
|
||
controller.send('close');
|
||
});
|
||
},
|
||
|
||
willDestroyElement: function() {
|
||
$(window).off('resize', this.windowWasResized);
|
||
|
||
$(document)
|
||
.off('mousemove', this.mouseWasMoved)
|
||
.off('mouseup', this.mouseWasReleased);
|
||
},
|
||
|
||
// Update the amount of padding-bottom on the body so that the page's
|
||
// content will still be visible above the composer when the page is
|
||
// scrolled right to the bottom.
|
||
updateBodyPadding: function(animate) {
|
||
// Before we change anything, work out if we're currently scrolled
|
||
// right to the bottom of the page. If we are, we'll want to anchor
|
||
// the body's scroll position to the bottom after we update the
|
||
// padding.
|
||
var anchorScroll = $(window).scrollTop() + $(window).height() >= $(document).height();
|
||
|
||
var func = animate ? 'animate' : 'css';
|
||
var paddingBottom = this.get('visible') ? this.get('computedHeight') - Ember.$('#footer').outerHeight(true) : 0;
|
||
$('#main')[func]({paddingBottom: paddingBottom}, 'fast');
|
||
|
||
if (anchorScroll) {
|
||
if (animate) {
|
||
$('html, body').animate({scrollTop: $(document).height()}, 'fast');
|
||
} else {
|
||
$('html, body').scrollTop($(document).height());
|
||
}
|
||
}
|
||
},
|
||
|
||
// Update the height of the stuff inside of the composer. There should be
|
||
// an element with the class .flexible-height — this element is intended
|
||
// to fill up the height of the composer, minus the space taken up by the
|
||
// composer's header/footer/etc.
|
||
updateContentHeight: function() {
|
||
var content = this.$('.composer-content');
|
||
this.$('.flexible-height').height(this.get('computedHeight')
|
||
- parseInt(content.css('padding-top'))
|
||
- parseInt(content.css('padding-bottom'))
|
||
- this.$('.composer-header').outerHeight(true)
|
||
- this.$('.text-editor-controls').outerHeight(true));
|
||
},
|
||
|
||
// ------------------------------------------------------------------------
|
||
// OBSERVERS
|
||
// ------------------------------------------------------------------------
|
||
|
||
// Whenever the composer is minimized or goes to/from fullscreen, we need
|
||
// to re-populate the control buttons, because their configuration depends
|
||
// on the composer's current state.
|
||
refreshControls: function() {
|
||
var controlItems = TaggedArray.create();
|
||
this.trigger('populateControls', controlItems);
|
||
this.set('controlItems', controlItems);
|
||
}.observes('minimized', 'fullscreen'),
|
||
|
||
// Whenever the composer's computed height changes, update the DOM to
|
||
// reflect it.
|
||
updateHeight: function() {
|
||
if (!this.$()) { return; }
|
||
|
||
var view = this;
|
||
Ember.run.scheduleOnce('afterRender', function() {
|
||
view.$().height(view.get('computedHeight'));
|
||
view.updateContentHeight();
|
||
});
|
||
}.observes('computedHeight'),
|
||
|
||
positionWillChange: function() {
|
||
this.set('oldPosition', this.get('position'));
|
||
}.observesBefore('position'),
|
||
|
||
// Whenever the composer's display state changes, update the DOM to slide
|
||
// it in or out.
|
||
positionDidChange: function() {
|
||
var $composer = this.$();
|
||
if (!$composer) { return; }
|
||
var view = this;
|
||
|
||
// At this stage, the position property has just changed, and the
|
||
// class name hasn't been altered in the DOM. So, we can grab the
|
||
// composer's current height which we might want to animate from.
|
||
// After the DOM has updated, we animate to its new height.
|
||
var oldHeight = $composer.height();
|
||
|
||
Ember.run.scheduleOnce('afterRender', function() {
|
||
var newHeight = $composer.height();
|
||
|
||
switch (view.get('position')) {
|
||
case PositionEnum.HIDDEN:
|
||
$composer.animate({bottom: -oldHeight}, 'fast', function() {
|
||
$composer.hide();
|
||
});
|
||
break;
|
||
|
||
case PositionEnum.NORMAL:
|
||
if (view.get('oldPosition') !== PositionEnum.FULLSCREEN) {
|
||
$composer.show();
|
||
$composer.css({height: oldHeight}).animate({bottom: 0, height: newHeight}, 'fast', function() {
|
||
view.focus();
|
||
});
|
||
}
|
||
break;
|
||
|
||
case PositionEnum.MINIMIZED:
|
||
$composer.css({height: oldHeight}).animate({height: newHeight}, 'fast', function() {
|
||
view.focus();
|
||
});
|
||
break;
|
||
}
|
||
|
||
if (view.get('position') !== PositionEnum.FULLSCREEN) {
|
||
view.updateBodyPadding(true);
|
||
}
|
||
view.updateContentHeight();
|
||
});
|
||
}.observes('position'),
|
||
|
||
// ------------------------------------------------------------------------
|
||
// LISTENERS
|
||
// ------------------------------------------------------------------------
|
||
|
||
windowWasResized: function(event) {
|
||
// Force a recalculation of the computed height, because its value
|
||
// depends on the window's height.
|
||
var view = event.data.view;
|
||
view.notifyPropertyChange('computedHeight');
|
||
},
|
||
|
||
mouseWasMoved: function(event) {
|
||
if (! event.data.handle) { return; }
|
||
var view = event.data.view;
|
||
|
||
// Work out how much the mouse has been moved, and set the height
|
||
// relative to the old one based on that. Then update the content's
|
||
// height so that it fills the height of the composer, and update the
|
||
// body's padding.
|
||
var deltaPixels = event.data.mouseStart - event.clientY;
|
||
view.set('height', event.data.heightStart + deltaPixels);
|
||
view.updateContentHeight();
|
||
view.updateBodyPadding();
|
||
},
|
||
|
||
mouseWasReleased: function(event) {
|
||
if (! event.data.handle) { return; }
|
||
event.data.handle = null;
|
||
$('body').css('cursor', '');
|
||
},
|
||
|
||
focus: function() {
|
||
this.$().find(':input:enabled:visible:first').focus();
|
||
},
|
||
|
||
populateControls: function(controls) {
|
||
var controller = this.get('controller');
|
||
var addControl = function(action, icon, title) {
|
||
var control = ActionButton.create({
|
||
icon: icon,
|
||
title: title,
|
||
className: 'btn btn-icon btn-link',
|
||
action: function() {
|
||
controller.send(action);
|
||
}
|
||
});
|
||
controls.pushObjectWithTag(control, action);
|
||
};
|
||
|
||
if (this.get('fullscreen')) {
|
||
addControl('exitFullscreen', 'compress', 'Exit Full Screen');
|
||
} else {
|
||
if (! this.get('minimized')) {
|
||
addControl('minimize', 'minus minimize', 'Minimize');
|
||
addControl('fullscreen', 'expand', 'Full Screen');
|
||
}
|
||
addControl('close', 'times', 'Close');
|
||
}
|
||
}
|
||
});
|